JP2012187127A - Heat stroke prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat stroke prevention system for surely preventing onset of heat stroke by interrupting work of a worker when there is the risk of onset of heat stroke.SOLUTION: The heat stroke prevention system 10 comprises a portable device 14 to be detachably put on clothes of each worker and a monitoring device 11 for monitoring onset risk of heat stroke. The portable device 14 includes: a temperature sensor for measuring an intra-clothes temperature of the worker; a humidity sensor for measuring intra-clothes humidity of the worker; a first transmission means for transmitting the intra-clothes temperature and the intra-clothes humidity to the monitoring device 11; a first reception means for receiving the onset risk alarm of heat stroke from the monitoring device 11; and a transmission means for transmitting the onset risk alarm received from the monitoring device 11 to the worker. The monitoring device 11 includes: a second reception means for receiving the intra-clothes temperature and the intra-clothes humidity from the portable device 14; and a second transmission means for transmitting the onset risk alarm to the portable device 14 when it is recognized that the onset risk of heat stroke is high on the basis of the received intra-clothes temperature and intra-clothes humidity.

Description

  The present invention relates to a heat stroke prevention system that conveys the risk of developing heat stroke to a worker who is working in a predetermined work environment and prevents the worker from developing heat stroke.

  An earplug that is removably inserted into the user's external ear canal, a case that is connected to the earplug and positioned in the earshell of the worker, and an eardrum temperature sensor that is installed on the earplug and measures the eardrum temperature of the worker And a heart rate sensor that is installed in the earplug and measures the heart rate of the worker, and the case uses the eardrum temperature transmitted from the eardrum temperature sensor and the heart rate transmitted from the heart rate sensor. There is an earplug type heat stroke warning device having a warning means that performs heat strain evaluation and issues a heat stroke warning according to the evaluation (see Patent Document 1). This earplug type heat stroke alarm device is small and lightweight, is held by the worker's external auditory canal and earshell, and can be used easily, but also has the risk of developing heatstroke toward the worker Can be warned directly.

JP 2010-131209 A

  The earplug type heat stroke alarm device disclosed in Patent Document 1 issues a heat stroke onset warning to the worker according to the heat strain evaluation, but only the operator himself who owns the alarm device is informed of the onset warning. Because third parties such as managers who manage workers cannot know the onset warning, third parties cannot monitor the risk of developing heat stroke, and the possibility of the onset of heat stroke This decision is left to the worker himself, and the worker is forced to self-control the prevention of heat stroke. Even if this earplug type heat stroke warning device issues a heat stroke onset warning, the worker can ignore the onset warning and continue the work, so the work can be forcibly interrupted. Therefore, the onset of heat stroke during work cannot be completely prevented.

  The purpose of the present invention is that a third party such as an administrator who manages the worker can know the risk of developing the heat stroke of the worker, and the third party monitors the defense against the heat stroke of the worker. It is to provide a heat stroke prevention system that can perform the above. Another object of the present invention is to prevent heat stroke, which can interrupt the work of the worker when there is a risk of developing heat stroke, and can reliably prevent the onset of heat stroke of the worker who is working. To provide a system.

  The premise of the present invention for solving the above-mentioned problem is a heat stroke prevention system that conveys the risk of developing heat stroke to a worker who is working in a predetermined work environment and prevents the worker from developing heat stroke.

  As a feature of the present invention based on the above premise, the system monitors a risk of developing heat stroke of a portable device that is individually carried by a plurality of workers and is detachably attached to the clothes of the workers. A temperature sensor for measuring the temperature in the clothes of the worker installed on the portable device, a humidity sensor for measuring the humidity in the clothes of the worker installed on the monitoring device, and a measured inside of the clothes The first transmitting means for transmitting the temperature and the humidity in the clothes to the monitoring device, the first receiving means for receiving the onset risk warning from the monitoring device, and the onset risk warning received from the monitoring device to the worker Based on at least one of the second receiving means for receiving the in-clothing temperature and the in-clothing humidity from the portable device, and the received in-clothing temperature and in-clothing humidity. Enthusiastic If deemed onset risk is high, to a second transmission means for transmitting the onset risk warning to the mobile device.

  As an example of the present invention, the monitoring device includes first determination means for determining the risk of developing heat stroke based on at least one of the in-clothing temperature and the in-clothing humidity received by the second receiving means, 2 When the transmission means determines that the risk of developing heat stroke is high by the first determination means, an onset risk warning is transmitted to the portable device.

  As another example of the present invention, the monitoring device includes first storage means for storing a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and the first determination means is a clothing transmitted from a portable device. While calculating the wet bulb black bulb temperature comparison value from the internal temperature and the clothing internal humidity, the wet bulb black bulb temperature danger value was compared with the calculated wet bulb black bulb temperature comparison value, and the comparison value exceeded the danger value Judge that the risk of developing heat stroke is high.

  As another example of the present invention, the portable device includes second determination means for determining the risk of developing heat stroke based on at least one of the in-clothing temperature and the in-clothing humidity measured by the sensors. When the means determines by the second determining means that the risk of developing heat stroke is high, the warning of the onset risk is transmitted to the operator.

  As another example of the present invention, the portable device includes a second storage unit that stores a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and the second determination unit includes an in-clothes measured by the measurement mechanism. When the wet bulb black bulb temperature comparison value is calculated from the temperature and the humidity inside the clothes, and the wet bulb black bulb temperature danger value is compared with the calculated wet bulb black bulb temperature comparison value, and the comparison value exceeds the danger value It is judged that the risk of developing heat stroke is high.

  As another example of the present invention, a portable device is inserted in the ear canal of a worker connected to the portable device so as to be detachable, and an earplug provided with an eardrum temperature sensor for measuring the eardrum temperature of the worker, A clip that is connected and detachably attached to the worker's earlobe and on which a heart rate sensor for measuring the worker's heart rate is installed, and the transmission means is connected to the portable device and integrated with the earplug And is formed from a bone conduction speaker that transmits an onset risk warning to the operator's skull, and the first transmission means transmits the eardrum temperature and heart rate measured by the sensors to the monitoring device, and the first determination means; The second determining means determines the risk of heat stroke based on at least one of the measured eardrum temperature and the measured heart rate.

  As another example of the present invention, a portable device connected to the portable device is detachably inserted into the worker's ear canal and measures the eardrum temperature of the worker and measures the heart rate of the worker. An earplug with a heart rate sensor installed, and a transmission means is formed of a bone conduction speaker connected to the earplug and made integrally with the earplug and transmitting an onset risk warning to the operator's skull; 1 transmitting means transmits the eardrum temperature and heart rate measured by these sensors to the monitoring device, and the first judging means and the second judging means are enthusiastic based on at least one of the measured eardrum temperature and the measured heart rate. Determine the risk of illness.

  As another example of the present invention, the first storage means stores the eardrum temperature risk value and the heart rate risk value indicating the risk of developing heat stroke, and the first determination means transmits the measurement eardrum transmitted from the portable device. The temperature and the eardrum temperature risk value are compared, and the measured heart rate sent from the portable device is compared with the heart rate risk value, and at least one of the measured eardrum temperature and the measured heart rate exceeds the risk value. Judge that the risk of developing heat stroke is high.

  As another example of the present invention, the second storage means stores the eardrum temperature risk value and the heart rate risk value indicating the risk of developing heat stroke, and the second determination means measures the measured eardrum temperature measured by the measurement mechanism. When the measured heart rate measured by the measurement mechanism and the heart rate risk value are compared, and at least one of the measured eardrum temperature and the measured heart rate exceeds the risk value, Judged that the risk of developing heat stroke is high.

  As another example of the present invention, the first transmission / reception means of the portable device and the second transmission / reception means of the monitoring device are wireless communication by PHS.

  Another example of the present invention is a shielded working environment in a nuclear facility where the working environment is at risk of contamination by radioactive material.

  According to the heat stroke prevention system according to the present invention, the in-clothing temperature and the in-clothing humidity measured by the portable device are transmitted to the monitoring device, and the heat treatment is based on at least one of the in-clothing temperature and the in-clothing humidity. If it is recognized that the risk of developing the disease is high, the monitoring device sends a risk of onset warning to the mobile device, and the mobile device transmits the risk of onset warning to the worker. The operator can know the risk of developing heat stroke, and the supervisor can objectively monitor the prevention of the worker against heat stroke. If the system recognizes that the risk of developing heat stroke is high, the portable device notifies the worker of the risk of developing the disease, so that the worker can know the risk of developing heat stroke and the worker can work. By interrupting, it is possible to prevent the onset of heat stroke of the worker who is working. In this system, since the person in charge of management can grasp the risk of developing heat stroke of the worker via the monitoring device, even if the worker ignores the risk of developing heat and continues work, Therefore, the person in charge of the management can quickly interrupt the work of the worker who is at risk of developing this, and it is possible to reliably prevent the onset of heat stroke of the worker who is working.

  When the monitoring device has first determination means for determining the risk of developing heat stroke based on at least one of the in-clothing temperature and the humidity in the clothes, and the first determining means has a high risk of developing heat stroke. If it is determined, the heat stroke prevention system in which the monitoring device transmits an onset risk warning to the portable device is the risk that the monitoring device may develop the heat stroke risk of the worker based on at least one of the in-clothing temperature and the in-clothing humidity. The manager responsible for managing it through the monitoring device can know the risk of developing the heat stroke of the worker, and the manager responsible for protecting the worker against heat stroke is objective. Can be monitored. When the monitoring device determines that the risk of developing heat stroke is high, the system transmits a warning of the onset risk to the portable device, and the portable device transmits the warning of the onset risk to the worker. Can know the risk of developing heat stroke, and the worker interrupts the work, so that the worker who is working can be prevented from developing heat stroke. In this system, the monitoring device identifies workers (portable devices) with a high risk of onset, and the supervisor can grasp the risk of developing heat stroke for each worker. Even if the work is continued ignoring the warning, the person in charge of management can quickly interrupt the work of workers who are at risk of developing heat stroke. Can be prevented.

  The monitoring device has a first storage means for storing a wet bulb black bulb temperature danger value indicating the risk of developing heat stroke, and compares the wet bulb black bulb temperature from the in-clothing temperature and the in-clothing humidity transmitted from the portable device. A heat stroke prevention system that compares the ball black bulb temperature risk value with the wet bulb black bulb temperature comparison value while calculating the value, and determines that the risk of developing heat stroke is high when the comparison value exceeds the risk value By setting a wet bulb black bulb temperature risk value in advance for each worker, the monitoring device (manager) can objectively monitor the worker's risk of developing heat stroke using numerical values. . In this system, if the operator's wet bulb black bulb temperature comparison value exceeds the wet bulb black bulb temperature risk value, the monitoring device determines that the risk of developing heat stroke is high. When the risk value is exceeded, the work is immediately interrupted, so that the heat stroke of the worker who is working can be reliably prevented.

  The portable device has second determination means for determining the risk of developing heat stroke based on at least one of the temperature in clothes and the humidity in clothes measured by the sensors, and the onset of heat stroke is determined by the second determination means. When it is determined that the risk is high, the heat stroke prevention system that notifies the worker of the risk of developing the onset is a heat stroke prevention system. Since it is transmitted to the worker, the worker can know the risk of developing heat stroke, and when the worker interrupts the work, the worker who is working can be prevented from developing heat stroke.

  The portable device has a second storage means for storing a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and the wet bulb black bulb temperature comparison value from the in-clothing temperature and the in-clothing humidity measured by the measurement mechanism The heat stroke prevention system compares the wet bulb black bulb temperature risk value with the wet bulb black bulb temperature comparison value and calculates that the risk of developing heat stroke is high when the comparison value exceeds the danger value. By setting a wet bulb black bulb temperature risk value in advance for each worker, the portable device can objectively monitor the worker's risk of developing heat stroke using numerical values. If the wet bulb black bulb temperature comparison value exceeds the wet bulb black bulb temperature risk value, the system determines that the portable device has a high risk of developing heat stroke. When the risk value is exceeded, the worker interrupts the work, so that the onset of the heat stroke of the worker who is working can be prevented.

  The portable device has an earplug provided with an eardrum temperature sensor for measuring the eardrum temperature of the worker and a clip provided with a heart rate sensor for measuring the heart rate of the worker, and the transmission means is integrated with the earplug. It is formed from a bone conduction speaker that transmits an onset risk warning to the skull of the worker, and the first determination means and the second determination means are based on at least one of the measured eardrum temperature and the measured heart rate. In the heat stroke prevention system for determining the risk of heat stroke, the monitoring device is based on at least one of the measured clothing temperature and the measured clothing humidity, and based on at least one of the eardrum temperature and the heart rate. The manager responsible for managing the monitoring device can know the worker's risk of developing heat stroke, and the administrator responsible for protecting the worker against heat stroke is objective. Monitoring Rukoto can. When the monitoring device determines that the risk of developing heat stroke is high, the system transmits a warning of the onset risk to the portable device, and the portable device transmits the warning of the onset risk to the worker. Can know the risk of developing heat stroke, and the worker interrupts the work, so that the worker who is working can be prevented from developing heat stroke. The system identifies workers (portable devices) with a high risk of onset in the monitoring device, and the person in charge of management can grasp the risk of developing heat stroke for each worker. Even if the work is ignored and the work is continued, the person in charge of management can quickly interrupt the work of workers who are at risk of developing heat stroke, thus ensuring the prevention of the heat stroke of workers who are working. be able to. The system automatically determines the risk of developing heat stroke of the worker based on at least one of the measured clothing temperature and the measured clothing humidity, and at least one of the eardrum temperature and heart rate. However, if it is determined that the risk of developing heat stroke is high, a warning is given to the worker via the transmission mechanism, so the worker can know the risk of developing heat stroke via a portable device. By interrupting the work, the worker can prevent the onset of heat stroke of the worker who is working. The system communicates the risk of onset to the worker through a bone conduction speaker integrated with the earplug, so that the operator can clearly hear the warning, and the bone conduction speaker allows the worker to hear the warning clearly. Both ears are not blocked, the worker can hear the sound around the work site during work, and the worker can safely work while grasping the surrounding situation. In this system, since the eardrum temperature sensor and the bone conduction speaker are integrated in the earplug, the eardrum temperature sensor transmits the measured eardrum temperature to the monitoring device, thereby ensuring that the bone conduction speaker is in the operator's ear. It can be seen that the bone conduction speaker is not attached to the worker who is working, and the risk of developing heat stroke is reliably transmitted to the worker through the bone conduction speaker. be able to.

  The portable device has an earplug in which an eardrum temperature sensor for measuring the eardrum temperature of the worker and a heart rate sensor for measuring the heart rate of the worker are installed, and the transmission means is made integrally with the earplug and the worker Formed from a bone conduction speaker that transmits an onset risk warning to the skull of the subject, and the first judging means and the second judging means judge the risk of heat stroke based on at least one of the measured eardrum temperature and the measured heart rate In the heat stroke prevention system, the monitoring device is based on at least one of the measurement clothing temperature and the measurement clothing humidity, and at least one of the eardrum temperature and the heart rate, and the risk of developing the heat stroke of the worker. Because it is determined automatically, the manager responsible for managing the monitoring device can know the risk of the worker's heat stroke, and the manager can objectively monitor the worker's defense against heat stroke. it can. When the monitoring device determines that the risk of developing heat stroke is high, the system transmits a warning of the onset risk to the portable device, and the portable device transmits the warning of the onset risk to the worker. Can know the risk of developing heat stroke, and the worker interrupts the work, so that the worker who is working can be prevented from developing heat stroke. The system identifies workers (portable devices) with a high risk of onset in the monitoring device, and the person in charge of management can grasp the risk of developing heat stroke for each worker. Even if the work is ignored and the work is continued, the person in charge of management can quickly interrupt the work of workers who are at risk of developing heat stroke, thus ensuring the prevention of the heat stroke of workers who are working. be able to. The system automatically determines the risk of developing heat stroke of the worker based on at least one of the measured clothing temperature and the measured clothing humidity, and at least one of the eardrum temperature and heart rate. However, if it is determined that the risk of developing heat stroke is high, a warning is given to the worker via the transmission mechanism, so the worker can know the risk of developing heat stroke via a portable device. By interrupting the work, the worker can prevent the onset of heat stroke of the worker who is working. The system communicates the risk of onset to the worker through a bone conduction speaker integrated with the earplug, so that the operator can clearly hear the warning, and the bone conduction speaker allows the worker to hear the warning clearly. Both ears are not blocked, the worker can hear the sound around the work site during work, and the worker can safely work while grasping the surrounding situation. In this system, since the eardrum temperature sensor, the heart rate sensor, and the bone conduction speaker are integrated in the earplug, the measured eardrum temperature and the measured heart rate are transmitted from these sensors to the monitoring device, so that the bone conduction speaker Can be securely attached to the worker's ears, preventing the bone conduction speaker from being worn by the worker who is working, and the risk of developing heat stroke through the bone conduction speaker. It can be reliably transmitted to the operator.

  The first storage means stores a tympanic temperature risk value, a heart rate risk value, a tympanic temperature risk value, and a heart rate risk value that indicate the risk of developing heat stroke, and the first determination means measures the in-clothing temperature and the in-clothing temperature. Comparing the risk value and comparing the humidity in the measurement clothing with the humidity risk value in the clothing, comparing the measured eardrum temperature and the eardrum temperature risk value, comparing the measured heart rate and the heart rate risk value, and measuring clothes It is judged that the risk of developing heat stroke is high when at least one of the internal temperature and the humidity in the measurement clothes exceeds the dangerous value and at least one of the measured eardrum temperature and the measured heart rate exceeds the dangerous value. The heat stroke prevention system that monitors the worker's risk of developing heat stroke by setting the temperature value in clothing, the humidity value in the clothing, the eardrum temperature risk value, and the heart rate risk value in advance for each worker. The device (manager) uses numerical values to It can be monitored. In this system, when at least one of the worker's measured clothing temperature and measured clothing humidity exceeds a dangerous value, and at least one of the worker's measured eardrum temperature and measured heart rate exceeds a dangerous value, Because it is judged that the risk of developing heat stroke is high, the risk of developing the disease can be objectively and specifically determined. If the risk value is exceeded, the worker who is working is immediately suspended. Can reliably prevent the onset of heat stroke.

  The second storage means stores the in-clothes temperature risk value, the in-clothes humidity risk value, the eardrum temperature risk value, and the heart rate risk value, and the second determination means compares the measured clothes temperature and the clothes temperature risk value. In addition, the measured in-clothes humidity and the in-clothes humidity risk value are compared, the measured eardrum temperature and the intima temperature risk value are compared, and the measured heart rate and the heart rate risk value are compared. The heat stroke prevention system that judges that the risk of developing heat stroke is high when at least one of humidity exceeds a dangerous value and at least one of measured eardrum temperature and measured heart rate exceeds a dangerous value is The portable device uses numerical values for the risk of developing heat stroke by setting the temperature risk value in clothing, the humidity risk value in the clothing, the eardrum temperature risk value, and the heart rate risk value in advance for each worker. Objective monitoring is possible. In this system, the portable device automatically determines the risk of developing heat stroke of the worker based on at least one of the measured temperature in the clothing and the measured humidity in the clothing, and at least one of the measured eardrum temperature and the measured heart rate. If the risk is determined to be high and the risk of developing heat stroke is determined to be high, a warning is given to the worker via a transmission mechanism, so the worker knows the risk of developing heat stroke via a portable device. In addition, when the worker interrupts the work, the heat stroke of the worker who is working can be prevented from occurring.

  The heat stroke prevention system in which the first transmission / reception mechanism of the portable device and the second transmission / reception mechanism of the monitoring device are wireless communication by PHS uses wireless communication by PHS for transmission / reception between the monitoring device and the portable device, Built a system that is resistant to radio interference, can reliably transmit an onset risk warning from a monitoring device to a portable device, and can reliably prevent the onset of heat stroke in workers working in a sealed work environment can do.

  The heat stroke prevention system, which is a shielded work environment in a nuclear facility where the work environment is at risk of contamination by radioactive materials, is used when a worker develops heat stroke while working in a nuclear facility. It may be interrupted or stagnated, and may lead to serious accidents such as leakage of radioactive materials, but the work of workers who are at risk of developing heat stroke may be interrupted and the workers replaced promptly. In addition, since it is possible to prevent the onset of heat stroke among workers working in nuclear facilities, it is possible to prevent interruption and stagnation of work in nuclear facilities and prevent serious accidents from occurring.

The schematic block diagram of the heat stroke prevention system shown as an example. The perspective view of the portable apparatus shown as an example. The figure of the state which the operator mounted | wore the portable apparatus of FIG. The flowchart explaining an example of each means performed in a system. The flowchart explaining another example of each means performed in a system. The perspective view of the portable apparatus shown as another example. FIG. 7 is a side view of an earplug and a bone conduction speaker connected to the portable device of FIG. 6. The figure of the state which the operator mounted | wore the portable apparatus of FIG. The perspective view of the portable apparatus shown as another example. FIG. 10 is a side view of an earplug and a bone conduction speaker connected to the portable device of FIG. 9. The figure of the state which the operator mounted | wore the portable apparatus of FIG.

  The heat stroke prevention system according to the present invention will be described in detail with reference to the accompanying drawings such as FIG. 1 which is a schematic configuration diagram of the heat stroke prevention system 10 shown as an example. 2 is a perspective view of the portable device 14a shown as an example, and FIG. 3 is a diagram of a state in which the operator 12 wears the portable device 14a of FIG. In FIG. 1, four portable devices 14 are illustrated, but in the system 10, a plurality of portable devices 14 are used, and the number is not particularly limited.

  The heat stroke prevention system 10 is formed of a single monitoring device 11 and a plurality of portable devices 14 that are detachably attached to work clothes 13 (clothes) of an operator 12. The system 10 uses the devices 11 and 14 to detect the heat stroke of the worker 12 engaged in a predetermined work in a shielded working environment in a nuclear power plant 15 (nuclear facility) having a risk of contamination with radioactive materials. Prevent onset. In addition to the nuclear power plant 15, this system 10 includes an intermediate storage facility, reprocessing plant, MOX fuel plant, fast breeder reactor, fast breeder reactor fuel plant, fast breeder reactor reprocessing plant, high-level radioactive waste It can be used in nuclear facilities such as final disposal facilities. Further, the system 10 can be used not only in a nuclear facility but also in any other work environment.

  By the way, a WBGT (wet bulb black bulb temperature) index is used to determine the risk of developing heat stroke. The WBGT index is an index that incorporates humidity, radiant heat, and air temperature, which have a large effect on the heat balance of the human body, and is calculated using dry bulb temperature, wet bulb temperature, and black bulb temperature. WBGT is calculated indoors by the formula: WBGT = 0.7 × wet bulb temperature + 0.3 × black bulb temperature. The relationship between heat stroke and the WBGT index is as follows. If the WBGT temperature is 31 degrees or higher (exercise is canceled in principle), if the WBGT temperature exceeds 31 degrees, the temperature becomes higher than the skin temperature, and the exercise is stopped except in special cases. In this case, immediately stop the work, return to the resting area, take a rest, and give a message of rehydration. If the WBGT temperature is above 28 degrees and below 31 degrees (Severe Warning), there is a high risk of heat stroke, so avoid heavy exercise or endurance exercises. When exercising, take active rest and rehydrate. In this case, stop the work, take a break, and give a message to replenish water.

  If the WBGT temperature is above 25 degrees and below 28 degrees (warning), the risk of heat stroke increases, so rest and replenish water. In this case, pause the work, take a break, and give a message to supply water. If the WBGT temperature is more than 21 degrees and less than 25 degrees (Caution), there is a possibility of death due to heat stroke. Watch for signs of heat stroke and actively drink water between exercises. In this case, the work conveys a message of continuation while supplying water. When the WBGT temperature is 21 degrees or less (almost safe), the risk of heat stroke is usually small, but it is necessary to replenish water appropriately. In this case, water is appropriately supplied and a message indicating that the operation is continued is transmitted.

  The monitoring device 11 is installed in the central control room of the nuclear power plant 15 and is managed and stored by the person in charge of management of the power plant 15. The monitoring device 11 monitors the risk of developing heat stroke of the worker 12 working at the nuclear power plant 15. The monitoring device 11 is a computer having a central processing unit (CPU or MPU) and a memory (storage unit), has a built-in large-capacity hard disk, and has a PHS wireless communication function (other than a case where a PHS wireless communication function is built in). , Including the case of being connected to a PHS wireless communication device). As a communication method, not only PHS wireless communication but also any wireless communication can be used. An input device such as a keyboard 16 and a mouse 17 and an output device such as a display 18 and a printer (not shown) are connected to the monitoring device 11 via an interface. The monitoring device 11 can transmit various data to the portable device 14 and can receive various data from the portable device 14 via the PHS wireless communication function.

  The central processing unit of the monitoring device 11 starts a heat stroke prevention application stored in the memory based on control by the operating system, and executes the following means according to the application. The central processing unit executes wet bulb black bulb temperature risk value storage means (first storage means) that stores a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and indicates the risk of developing heat stroke. The in-clothes temperature risk value storage means (first storage means) for storing the in-clothes temperature risk value, and the in-clothes humidity risk value storage means for storing the in-clothes humidity risk value indicating the risk of onset of heat stroke ( First storage means) is executed.

  The central processing unit of the monitoring device 11 allows an elapsed time (elapsed time of over-clothing temperature) that has elapsed since the measured in-clothing temperature (measured in-clothing temperature) exceeds the in-clothing temperature dangerous value. Elapsed time that is the time that has elapsed since the measured in-clothes humidity (measured in-cloth humidity) exceeded the in-clothes humidity danger value, while executing the allowable time storage means for storing the time exceeding the in-clothes temperature storing time. The intra-clothing humidity excess elapsed time permissible time storage means for storing the permissible time of the over-clothing humidity excess elapsed time) is executed.

  The central processing unit of the monitoring device 11 executes an in-clothes temperature measurement interval storage unit that stores a measurement interval of the in-clothes temperature, and executes an in-clothes humidity measurement interval storage unit that stores a measurement interval of the in-clothes humidity. The central processing unit executes measurement clothing temperature receiving means (second reception means) that receives the measurement clothing temperature from the portable device 14 and receives measurement clothing humidity receiving means (second clothing reception device) from the portable device 14 ( 2nd receiving means) is executed. The central processing unit executes clothing temperature storage means for storing the received measured clothing temperature in time series on the hard disk, and executes clothing humidity storage means for storing the received measured clothing temperature in time series on the hard disk. .

  The central processing unit of the monitoring device 11 executes wet bulb black bulb temperature comparison value calculation means for calculating a wet bulb black bulb temperature comparison value based on the received measurement clothing inner temperature and measurement clothing humidity. The central processing unit executes risk determination means (first determination means) for determining the risk of onset of heat stroke based on the calculated wet bulb black bulb temperature comparison value, and also receives the received measurement clothes temperature and measurement clothes. Risk determination means (first determination means) for determining the risk of developing heat stroke based on the internal humidity is executed. When the central processing unit determines that the risk of developing heat stroke is high by the risk determination unit, the central processing unit executes a warning transmission unit (second transmission unit) that transmits an onset risk warning to the portable device 14. The central processing unit executes message transmission means (second transmission means) for transmitting various messages to the mobile device 14. The message includes all communication items such as work instructions and precautions.

  In the hard disk of the monitoring device 11, the wet bulb black bulb temperature risk value (as described in the WBGT index), the clothing temperature risk value, and the clothing humidity risk value are classified and stored for each portable device 14. In the hard disk, the allowable time of the elapsed time (excess elapsed time) that is the time elapsed since the temperature in the measurement clothes and the humidity in the measurement clothes exceeded the dangerous value is stored for each portable device 14a. Furthermore, the measurement interval of the temperature in clothes and the humidity in clothes is stored in the hard disk separately for each portable device 14.

  The portable device 14 is a computer having a central processing unit (CPU or MPU) and a memory (storage unit), has a built-in antenna (not shown), and has a PHS wireless communication function (built-in PHS wireless communication function). In addition to the case, including the case of being connected to a PHS wireless communication device). Although not shown, the portable device 14 may be equipped with a display and a key unit. The portable device 14 is detachably accommodated in the chest pocket 24 of the work clothes 13 (clothes) worn by the operator 12 (if there is a PHS wireless communication device, the wireless communication device is also the chest pocket 24 of the work clothes 13). Housed in). Each portable device 14 is set with a private IP address and a MAC address, and each portable device 14 can be specified individually based on the address information. The private IP address and MAC address of each mobile device 14 are stored in the hard disk of the monitoring device 11. Each portable device 14 is supplied with power by a battery or a battery.

  A portable device 14a (14) shown in FIG. 2 includes a temperature sensor (measuring mechanism) and a humidity sensor (measuring mechanism), and a bone conduction speaker 19 (transmitting mechanism) that transmits an onset risk warning and various messages to the operator 12. It has. The temperature sensor has a sensor portion 20 installed on one side wall of the portable device 14a. The temperature sensor measures the temperature inside the clothes of the worker 12 and converts the measured temperature inside the clothes into a digital signal. The humidity sensor has a sensor portion 21 installed on one side wall of the portable device 14a. The humidity sensor measures the humidity in the clothes of the person 12, and converts the measured humidity in the clothes into a digital signal.

  Examples of the bone conduction speaker 19 include a bone conduction headphone and a bone conduction earphone. An ear hook 22 is attached to the bone conduction speaker 19. The bone conduction speaker 19 is detachably connected to the portable device 14a via the interface 23. The bone conduction speaker 19 directly transmits the onset risk warning and various messages transmitted from the portable device 14 to the skull of the worker 12.

  The central processing unit of the portable device 14a starts a heat stroke prevention application stored in the memory based on the control by the operating system, and executes the following means according to the application. The central processing unit executes the in-clothes temperature measuring means for measuring the temperature in the clothes of the worker 12 through the temperature sensor, and the in-clothes humidity measuring means for measuring the in-clothes humidity of the worker 12 through the humidity sensor. Execute. The central processing unit executes an in-clothes temperature transmitting unit (first transmitting unit) that transmits the measured measured clothing temperature to the monitoring device 11, and transmits the measured measured clothing temperature to the monitoring device 11. Means (first transmission means) are executed.

  The central processing unit of the portable device 14a executes warning receiving means (first receiving means) for receiving a heat stroke onset risk warning from the monitoring device 11, and the worker 12 receives the onset risk warning received from the monitoring device 11. The warning transmission means (transmission means) for transmitting to is executed. The central processing unit executes message receiving means (first receiving means) for receiving various messages from the monitoring apparatus 11, and includes message transmission means (transmitting means) for transmitting the messages received from the monitoring apparatus 11 to the worker 12. Execute.

  FIG. 4 is a flowchart for explaining an example of each means executed in the system 10. An example of the heat stroke prevention process of the system 10 will be described with reference to FIG. The manager in charge switches on the monitoring device 11, operates the monitoring device 11, and sets a dangerous value, an allowable time, and a measurement interval (S-10). When the monitoring device 11 is activated, an initial setting screen (not shown) is displayed on the display 18.

  The initial setting screen includes an attribute input area for the operator 12, an identification name input area for the portable device 14a, a wet bulb black bulb temperature risk value input area, a clothing temperature temperature risk value input area, a clothing humidity risk value input area, and clothing. Allowable time input area for excess elapsed time of internal temperature, Allowable time input area for excess elapsed time of internal humidity in clothing, Measurement interval input area for internal temperature of clothing, Measurement interval input area for internal humidity of clothing, Data storage button, Clear button, A logout button is displayed. Clicking the clear button clears the data entered in each input area. Click the logout button to close the system. The attributes of the worker 12 include the worker's 12 name and code number, gender, affiliation department, extension, weight, normal body temperature, normal heart rate, work location, etc., and the contents can be arbitrarily set. it can.

  The manager in charge inputs each attribute in the attribute input area of the worker 12, inputs an arbitrary identification name in the identification name input area of the portable device 14a (selects an identification name from the pull-down list of identification names), The wet bulb black bulb temperature risk value (as described in the WBGT index) is input in the bulb black bulb temperature risk value input area. In-clothing temperature dangerous value input area (for example, 39.0 ° C., 39.5 ° C. for worker 12 accustomed to a hot environment) is input, and the in-clothy humidity dangerous value is input. A dangerous humidity value in clothes (for example, 60%, 65% for the worker 12 accustomed to a hot environment) is input to the area.

  An allowable time (for example, 0, 3 minutes, 5 minutes, etc.) is input in the allowable time input area for the excess elapsed time of the in-clothing temperature, and an allowable time (for example, Enter 0, 3 minutes, 5 minutes, etc.). The measurement interval (for example, 0 or 30 seconds interval, 1 minute interval, etc.) is input to the measurement interval input area for the in-clothing temperature, and the measurement interval (for example, 0 or 30 second interval, 1 to 1 minute interval, etc.) Enter the minute interval). When these measurement intervals are 0, the temperature in the clothes and the humidity in the clothes are continuously measured.

  A plurality of different in-clothe temperature risk values can be input, and a plurality of different in-clothe humidity risk values can also be input. Also, a plurality of different allowable times can be input. As an example in this case, a first clothing temperature temperature risk value (for example, 38.0 ° C., 38.5 ° C. for the worker 12 accustomed to the hot environment) is input, and the clothing temperature corresponding to the first clothing temperature temperature is input. Enter the allowable elapsed time (for example, 5 minutes). The second clothing temperature temperature risk value (for example, 39.0 ° C., 39.5 ° C. for the worker 12 accustomed to the hot environment) is input, and the clothing inner temperature excess elapsed time allowable time ( For example, enter 3 minutes). Further, the first in-clothes humidity risk value (for example, 55%, 58% for the worker 12 accustomed to the hot environment) is input, and the corresponding in-clothes humidity excess elapsed time allowable time (for example, 5 minutes). A second danger value within the clothing humidity (for example, 60%, 65% for the worker 12 accustomed to the hot environment) is input, and the corresponding excess time within the clothing humidity excess elapsed time (for example, 3 minutes) ).

  After entering data in these input areas, click the store button. When the store button is clicked, a data confirmation screen (not shown) is displayed on the display 18. On the data confirmation screen, each input data is displayed in each input area, and a data confirmation button, a data change button, and a cancel button are displayed. Click the Cancel button to return to the initial setting screen. The person in charge of management confirms the attribute of each worker 12 displayed on the display 18, the wet bulb black bulb temperature risk value, the worker's in-cloth temperature risk value, and the in-cloth humidity risk value. After confirming the allowable time for the excess elapsed time of the internal humidity and checking the measurement interval of the temperature inside the clothes and the humidity inside the clothes, if there is no error in the input data, click the data confirmation button.

  When the data confirmation button is clicked, the monitoring device 11 stores the attribute of the worker 12 in the hard disk in a state associated with the private IP address or MAC address (hereinafter, abbreviated as an address) of the portable device 14a, and the identification name. It is stored in the hard disk in a state associated with 14 addresses. The monitoring device 11 stores the wet bulb black bulb temperature risk value in the hard disk in a state associated with the address of the portable device 14a (wet bulb black bulb temperature risk value storage means), and stores the clothing temperature risk value in the address of the portable device 14a. Is stored in the hard disk in a state associated with (in-clothing temperature risk value storage means), and the in-clothes humidity risk value is stored in a state associated with the address of the portable device 14a (in-clothing humidity risk value storage means).

  The monitoring device 11 stores the permissible time exceeding the in-clothes elapsed time in the hard disk in a state associated with the address of the portable device 14a (the in-clothes temperature excess elapsed time permissible time storage means), It is stored in the hard disk in a state associated with the address of the portable device 14a (in-clothes humidity excess elapsed time allowable time storage means). The monitoring device 11 stores the measurement interval of the in-clothes temperature in the hard disk in a state associated with the address of the portable device 14 (in-clothes temperature measurement interval storage means), and associates the measurement interval of the in-clothes humidity with the address of the portable device 14a. Stored in the hard disk in a wet state (in-clothes humidity measurement interval storage means).

  If the initial setting has already been performed, the monitoring device 11 displays a data confirmation screen on the display 18 without displaying the initial setting screen. The in-clothing temperature risk value, the in-clothing humidity risk value, the permissible time of the overtime of the in-clothe temperature, and the permissible time of the overtime of the in-clothing humidity are different values for each portable device 14a (each worker 12). And time is set. The in-clothes temperature risk value, the in-clothes humidity risk value, the allowable time, and the measurement interval can be changed by the input device.

  To change the attribute of the worker 12, the identification name of the portable device 14a, the dangerous value, the allowable time, and the measurement interval, click the data change button on the data confirmation screen. When the data change button is clicked, a data change screen (not shown) is displayed on the display 18. Each input area, change data storage button, and clear button are displayed on the data change screen as in the initial setting screen. When the changed data storage button is clicked after inputting data in each input area, the monitoring device 11 stores the changed data in the hard disk in a state associated with the address of the portable device 14a.

  Check the attributes, identification names, risk values, permissible times, and measurement intervals. If there are no errors or there are no changes, the supervisor will start the work at the nuclear power plant 15 by the worker 12 Before, the portable device 14a is handed to each worker 12. A specific portable device 14a is individually assigned to each worker 12. Each worker 12 who has received the portable device 14a puts the portable device 14a in the chest pocket 24 of the work clothes 13 (clothing), puts the ear hook 22 on the ear shell 25, and wears the bone conduction speaker 19. In addition, as shown in FIG. 3, the side wall in which these sensor parts 20 and 21 of the portable apparatus 14a were installed so that the sensor part 20 of a temperature sensor and the sensor part 21 of a humidity sensor may oppose the operator's 12 skin. Opposite to the skin of the operator 12. The worker 12 wears the portable device 14a and the bone conduction speaker 19, arrives at the work location, turns on the switch (not shown) of the portable device 14a, and starts work at the work location.

  When the portable device 14a is switched on, the allowable time and measurement interval are transmitted from the monitoring device 11 to the portable device 14a, and the portable device 14a receives them. Furthermore, when there are messages such as work instructions and precautions, these messages are transmitted to the portable device 14a using PHS wireless communication (message transmitting means). In addition, you may make it set permissible time and a measurement interval separately in the portable apparatus 14a. In this case, the allowable time and measurement interval (including the private IP address and MAC address of the portable device 14a) are not transmitted from the monitoring device 11 to the portable device 14a. The data is transmitted to the monitoring device 11 and stored in the hard disk of the monitoring device 11 in a state where the allowable time and the measurement interval are associated with the address of the portable device 14a.

  Each portable device 14a receives various messages from the monitoring device 11 using PHS wireless communication (message receiving means), and transmits the received messages to the worker 12 (message transmitting means) (S-11). . The message is transmitted from the bone conduction speaker 19 to the worker 12. Each portable device 14 measures the temperature in the clothes of the worker 12 during work (clothing temperature measuring means) (S-12) and measures the humidity in the clothes of the worker 12 during work according to the measurement interval. (Clothing humidity measuring means) (S-12). The portable device 14a transmits the measured measurement clothing temperature (digital signal) together with the private IP address and MAC address to the monitoring device 11 (clothing temperature transmission means) (S-13), and the measured measurement clothing humidity. (Digital signal) is transmitted to the monitoring device 11 (in-clothes humidity transmitting means) (S-13).

  The monitoring device 11 receives the measured clothing temperature from the portable device 14a (measured clothing temperature receiving means), and receives the measured clothing humidity from the portable device 14a (measured clothing humidity receiving means). When the monitoring device 11 receives the measurement clothing temperature and the measurement clothing humidity, the monitoring device 11 stores the measurement clothing temperature in time series on the hard disk in association with the address of the portable device 14a (clothing temperature storage means). The internal humidity is stored in time series on the hard disk in a state associated with the address of the portable device 14a (in-clothy humidity storage means). Next, the monitoring device 11 calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) based on the received measurement clothing inner temperature and measurement clothing humidity, and the calculated wet bulb black. The risk of developing heat stroke is determined based on the ball temperature comparison value, the received temperature in the measurement clothes, and the humidity in the measurement clothes (risk determination means) (S-14).

  An example of risk determination is as follows. The monitoring device 11 compares the calculated wet bulb black bulb temperature comparison value (WBGT temperature) with the wet bulb black bulb temperature risk value (WBGT temperature), and the wet bulb black bulb temperature comparison value is the wet bulb black bulb temperature danger value. The current risk of developing heat stroke is determined according to the WBGT index. When the WBGT temperature is a normal value (WBGT temperature exceeds 21 degrees and is 25 degrees or less, or WBGT temperature is 21 degrees or less), it is determined that there is no risk of onset, and the worker 12 continues the work (S-15). . When the monitoring device 11 determines that the risk of developing heat stroke is high according to the WBGT index (WBGT temperature: 31 degrees or more, WBGT temperature: more than 28 degrees and less than 31 degrees, WBGT temperature: more than 25 degrees and less than 28 degrees ), A PHS wireless communication is used to transmit an onset risk warning (the message according to the WBGT indicator) to the portable device 14a (warning transmission means).

  Another example of the risk determination is as follows. The monitoring device 11 determines whether the in-clothes temperature exceeds the in-clothes temperature risk value (measured in-clothes temperature> in-clothes temperature risk value), and whether the measured in-clothes humidity exceeds the in-clothes humidity risk value ( Measured humidity in clothing> Danger value in clothing humidity). The monitoring device 11 is configured such that the measured clothing temperature is equal to or less than the critical temperature value within the clothing (measured clothing temperature ≦ the critical temperature value within the clothing) and the measured clothing humidity is equal to or less than the critical clothing humidity value (measured clothing humidity ≦ capacity humidity risk Value), it is determined that there is no risk of onset, and the worker 12 is allowed to continue the work (S-15).

  The monitoring device 11 is configured such that the measured clothing temperature exceeds the clothing temperature risk value (measured clothing temperature> clothing temperature temperature risk value) and the measured clothing humidity exceeds the clothing humidity risk value (measured clothing humidity> clothing temperature). In the case of at least one of the “hazardous humidity value”, it is determined whether the elapsed time has passed the permissible time (over-clothing temperature excess elapsed time> allowable time, over-clothing humidity excess elapsed time> allowable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that there is no risk of onset, and causes the operator 12 to continue the operation (S-15).

  At least one of the elapsed time exceeding the allowable temperature in the clothing exceeds the permissible time (the elapsed time exceeding the allowable temperature in the clothing> the allowable time) and the elapsed time exceeding the allowable humidity in the clothing exceeds the allowable time (the elapsed time exceeding the allowable humidity in the clothing> allowable time). In either case, the monitoring device 11 determines that the risk of developing heat stroke is high, and transmits a risk of developing the risk to the portable device 14a using PHS wireless communication (warning transmission means). When the allowable time of the elapsed time is 0, the monitoring device 11 transmits an onset risk warning to the portable device 14a immediately after the in-clothing temperature or the in-clothing humidity exceeds the dangerous value (warning transmitting unit).

  The portable device 14a receives the onset risk warning transmitted from the monitoring device 11 (warning receiving means), and transmits the received warning to the worker 12 (warning transmitting means) (S-16). For example, a voice indication such as (measured value has exceeded the critical value. Please stop the work immediately. Return to the rest area and rest and drink enough water). Is transmitted to the operator 12 through the bone conduction speaker 19. Alternatively, a warning sound indicating a high risk is emitted to the worker 12 through the bone conduction speaker 19. The worker 12 interrupts the work according to the warning (S-17).

  On the display 18 of the monitoring device 11, the content of the warning, the portable device 14a to which the warning is transmitted, the name and code number of the worker 12 wearing the portable device 14a, and the work location of the worker 12 are displayed. The person in charge of management can grasp the worker 12 who has a high risk of developing heat stroke via the display 18. If the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable device 14a to the worker 12, the manager in charge goes to the work place and the worker 12 The work is interrupted (S-17).

  Another example of the risk determination is as follows. In the monitoring device 11, the measured clothing temperature exceeds the first clothing temperature risk value (measured clothing temperature> first clothing temperature risk value), and the measured clothing humidity exceeds the first clothing humidity risk value. It is determined whether or not (measured clothing humidity> first clothing humidity risk value). Measurement clothing temperature is less than or equal to the first clothing temperature risk value (measurement clothing temperature ≤ first clothing temperature risk value) and measurement clothing humidity is less than or equal to the first clothing humidity risk value (measurement clothing humidity ≤ first clothing) In the case of at least one of the internal humidity risk value), the monitoring device 11 determines that there is no risk of onset, and causes the operator 12 to continue the work (S-15).

  The monitoring device 11 determines that the measured clothing temperature exceeds the first clothing temperature risk value (measured clothing temperature> first clothing temperature risk value) and the measured clothing humidity exceeds the first clothing humidity risk value (measurement). In at least one of the following: Humidity in clothing> Humidity risk value in first clothing) Whether the elapsed time has passed the allowable time (elapsed time in excess of clothing temperature> allowed time, elapsed time in excess of moisture in clothing> Tolerable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that there is no risk of onset, and causes the operator 12 to continue the operation (S-15).

  The monitoring device 11 is configured to exceed the allowable time in the clothing internal temperature excess elapsed time (clothing internal temperature excess elapsed time> allowable time) and the clothing internal humidity excess elapsed time exceeds the allowable time (clothing humidity excess elapsed time> allowable time). In at least one of the cases, it is determined that the risk of onset of heat stroke is moderate, and the first onset risk warning is transmitted to the portable device 14a using PHS wireless communication (warning transmitting means). . When the allowable time of the excess elapsed time is 0, the monitoring device 11 transmits a first onset risk warning to the portable device 14a immediately after the in-clothing temperature and the in-clothing humidity exceed the first danger value ( Warning transmission means).

  The portable device 14a receives the first onset risk warning transmitted from the monitoring device 11 (warning receiving means), and transmits the received warning to the worker 12 (warning transmission means) (S-16). As a warning, for example, a voice instruction such as (body temperature and heart rate are rising. Please continue your work while paying attention to your physical condition) is transmitted to the operator 12 via the bone conduction speaker 19. Alternatively, a warning sound indicating a medium risk is emitted to the worker 12 through the bone conduction speaker 19. The worker 12 determines whether to continue the work or to interrupt the work by self-judgment. On the display 18 of the monitoring device 11, the content of the warning, the portable device 14a to which the warning is transmitted, the name and code number of the worker 12 wearing the portable device 14a, and the work location of the worker 12 are displayed. The person in charge of management can grasp the worker 12 who has a moderate risk of developing heat stroke via the display 18.

  After transmitting the first onset risk warning to the portable device 14a, the monitoring device 11 causes the measured clothing temperature to exceed the second clothing temperature risk value (measured clothing temperature> second clothing temperature risk value). Then, it is determined whether the humidity in the measured clothes has exceeded the humidity risk value in the second clothes (measured humidity in the clothes> humidity value in the second clothes). The monitoring device 11 determines that the measured eardrum temperature is less than or equal to the second eardrum temperature risk value (measurement eardrum temperature ≦ second eardrum temperature risk value) and the measured heart rate is less than or equal to the second heart rate risk value (measurement heart rate ≦ second heart rate risk). Value), it is judged that the risk of onset is still moderate.

  The monitoring device 11 determines that the measured clothing temperature exceeds the second clothing temperature risk value (measured clothing temperature> second clothing temperature risk value) and the measured clothing humidity exceeds the second clothing humidity risk value (measurement). In at least one of the following: Humidity in clothing> Humidity risk value in second clothing) Whether the elapsed time has passed the allowable time (elapsed time in excess of clothing temperature> allowable time, elapsed time in excess of humidity in clothing> Tolerable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that the onset risk is moderate.

  At least one of the elapsed time exceeding the allowable temperature in the clothing exceeds the permissible time (the elapsed time exceeding the allowable temperature in the clothing> the allowable time) and the elapsed time exceeding the allowable humidity in the clothing exceeds the allowable time (the elapsed time exceeding the allowable humidity in the clothing> allowable time). In either case, the monitoring device 11 determines that the risk of developing heat stroke is high, and transmits the second risk of warning to the portable device 14a using PHS wireless communication (warning transmission means). When the allowable time of the excess elapsed time is 0, the monitoring device 11 transmits a second onset risk warning to the portable device 14a immediately after the in-clothing temperature and the in-clothing humidity exceed the second risk value ( Warning transmission means).

  The portable device 14a receives the second onset risk warning transmitted from the monitoring device 11 (warning receiving means), and transmits the received warning to the worker 12 (warning transmission means) (S-16). As a warning, for example, (the measured value has exceeded the dangerous value. Stop the work immediately. Return to the rest area and rest and drink enough water.) The information is transmitted to the operator 12 through the speaker 19. Alternatively, a warning sound indicating a high risk is emitted to the worker 12 through the bone conduction speaker 19. The worker 12 interrupts the work according to the warning (S-17).

  On the display 18 of the monitoring device 11, the content of the warning, the portable device 14a to which the warning is transmitted, the name and code number of the worker 12 wearing the portable device 14a, and the work location of the worker 12 are displayed. The person in charge of management can grasp the worker 12 who has a high risk of developing heat stroke via the display 18. If the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable device 14a to the worker 12, the manager in charge goes to the work place and the worker 12 The work is interrupted (S-17).

  After the worker 12 who has finished the work returns to the break room, or after the worker 12 who interrupted the work due to the warning returns to the break room, the monitoring device 11 determines whether to stop the work as it is (S). -18). The portable device 14a measures the in-clothing temperature of the worker 12 taking a break in the break room (in-clothing temperature measuring means), and measures the in-clothing humidity of the worker 12 during the break (in-clothing humidity measuring means). The portable device 14a transmits the measured measured clothing temperature to the monitoring device 11 together with the private IP address and MAC address (clothing temperature transmission means) and transmits the measured measured clothing temperature to the monitoring device 11 (clothes). Internal humidity transmission means).

  The monitoring device 11 receives the measured clothing temperature from the portable device 14a (measured clothing temperature receiving means) and receives the measured clothing humidity (measured clothing humidity receiving means). When the monitoring device 11 receives the measurement clothing temperature and the measurement clothing humidity, the monitoring device 11 stores the measurement clothing temperature in time series on the hard disk in association with the address of the portable device 14a (clothing temperature storage means). The internal humidity is stored in time series on the hard disk in a state associated with the address of the portable device 14a (in-clothy humidity storage means). Next, the monitoring device 11 calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) based on the received measurement clothing internal temperature and measurement clothing humidity, and the computed wet bulb black. Based on the ball temperature comparison value, the received temperature in the measurement clothes, and the humidity in the measurement clothes, the risk of developing heat stroke of the worker 12 during the break is determined (risk determination means).

  When the wet bulb black bulb temperature comparison value of the worker 12 who is taking a break returns to a normal value, or when the temperature in the clothing or the humidity in the clothing of the worker 12 is lower than the dangerous value, the monitoring device 11 performs PHS wireless communication. Is used to transmit a work resumption instruction (message) to the portable device 14a (message transmitting means). The portable device 14a receives the message from the monitoring device 11 using PHS wireless communication (message receiving means), and transmits the received message to the worker 12 (message transmitting means). The worker 12 resumes the work according to the work resumption instruction (S-19). Note that the wet bulb black bulb temperature comparison value of the worker 12 during the break does not return to the normal value even after a predetermined time (for example, 1 minute, 3 minutes, 5 minutes, etc.) has elapsed, If the internal humidity exceeds the dangerous value even after a predetermined time (for example, 1 minute, 3 minutes, 5 minutes, etc.) has elapsed, the work of the operator 12 is immediately stopped without resuming the work.

  Since the monitoring device 11 determines the risk of developing heat stroke of the worker 12 based on the WBGT temperature, the measured clothing temperature, and the measured clothing humidity of the worker 12 who is working, the heat stroke prevention system 10 The person in charge of management of the device 11 can know the risk of developing the heat stroke of the worker 12, and the person in charge of the management can objectively monitor the defense against the heat stroke of the worker 12. When the system 10 determines that the risk of developing heat stroke is high, the monitoring device 11 transmits an onset risk warning to the portable device 14a, and the portable device 14a transmits the onset risk warning to the worker. The worker 12 can know the risk of developing heat stroke, and when the worker 12 interrupts the work, the worker 12 who is working can be prevented from developing heat stroke. Since the system 10 can identify the worker 12 (mobile device 14a) having a high risk of onset in the monitoring device 11, even if the worker 12 ignores the risk of onset and continues the work, heat stroke The person in charge of management can promptly interrupt the work of the worker 12 who is at risk of developing the disease, and can reliably prevent the onset of heat stroke of the worker 12 who is working.

  FIG. 5 is a flowchart for explaining another example of each means executed in the system 10. With reference to FIG. 5, another example of the heat stroke prevention process of the system 10 will be described as follows. In the heat stroke prevention process of FIG. 5, the central processing unit of the monitoring device 11 includes, among the means already described in the flowchart of FIG. 4, measurement clothing temperature receiving means, measurement clothing humidity receiving means, and clothing temperature storage means. The in-clothes humidity storage means, the wet bulb black bulb temperature comparison value calculation means, the danger judgment means (first judgment means), and the warning transmission means are not executed. In the heat stroke prevention process of FIG. 5, the portable device 14a executes each means already described in the flowchart of FIG. 4 (does not execute the temperature transmission means in clothes and the humidity transmission means in clothes), and in addition, Execute means.

  The central processing unit of the portable device 14a executes a wet bulb black bulb temperature risk value storage unit (second storage unit) that stores a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and develops heat stroke. The in-clothes temperature danger value storage means (second storage means) for storing the in-clothes temperature risk value indicating the danger is executed, and the in-clothes humidity risk value indicating the risk of developing heat stroke is stored. The value storage means (second storage means) is executed. The central processing unit stores the allowable time of the elapsed time (the elapsed time exceeding the in-clothing temperature) that is the time elapsed since the measured in-clothing temperature (measured in-clothing temperature) exceeds the in-clothing temperature dangerous value. Elapsed time that is the time elapsed since the measured internal humidity (measured internal humidity) exceeded the in-clothes humidity danger value after executing the internal temperature excess elapsed time allowable time storage means (excessive internal humidity exceeded elapsed time) ) The allowable time storage means for storing the elapsed time of excess moisture in the clothing is stored.

  The central processing unit of the portable device 14a executes an in-clothes temperature measurement interval storage unit that stores the measurement interval of the in-clothes temperature, and executes an in-clothes humidity measurement interval storage unit that stores the measurement interval of the in-clothes humidity. The central processing unit executes wet bulb black bulb temperature risk value calculating means for calculating a wet bulb black bulb temperature comparison value based on the measured measured clothing inner temperature and measured clothing inner humidity. The central processing unit executes risk determination means (second determination means) for determining the risk of developing heat stroke based on the calculated wet bulb black bulb temperature comparison value, and also measures the measured temperature in the measurement clothes and the measurement clothes. Risk determination means (second determination means) for determining the risk of developing heat stroke based on the internal humidity is executed. When the central processing unit determines that the risk of developing heat stroke is high by the risk determination unit, the central processing unit executes a warning transmission unit (transmission unit) that transmits the onset risk warning to the operator via the bone conduction speaker 19.

  The manager in charge switches on the monitoring device 11 and the portable device 14a, operates the devices 11 and 14a, and sets the dangerous value, allowable time, and measurement interval (S-20). When the portable device 14a is operated, an initial setting screen (not shown) is displayed on a display (not shown) mounted on the device 14a. The initial screen is the same as that displayed on the display 18 of the monitoring device 11. The manager in charge inputs necessary data in each input area using a key unit (not shown) of the device 14a, and individually sets each danger value, each allowable time, and each measurement interval. Each danger value, each allowable time, and each measurement interval (including the private IP address and MAC address of the portable device 14a) are stored in the memory of the portable device 14a (each storage unit) and from the portable device 14a to the monitoring device 11 Each risk value, each allowable time, and each measurement interval are stored in the hard disk of the monitoring device 11 in a state associated with the address of the portable device 14a (each storage unit).

  After setting the dangerous value, allowable time, and measurement interval, the portable device 14a and the bone conduction speaker 19 are attached to the operator. The worker wearing them starts work at the work location. When there are messages such as work instructions and precautions, each portable device 14a receives various messages from the monitoring device 11 using PHS wireless communication (message receiving means) and transmits the received messages to the worker 12. (Message transmission means) (S-21).

  Each portable device 14a measures the in-clothes temperature and the in-clothes humidity of the worker 12 who is working according to the measurement interval (in-clothes temperature measuring means, in-clothes humidity measuring means) (S-22). Each portable device 14a calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) on the basis of the measured measured clothing temperature and measured clothing humidity, and the calculated wet bulb black bulb temperature. The risk of onset of heat stroke is determined based on the comparison value, the measured temperature in the measurement clothes, and the humidity in the measurement clothes (risk determination means) (S-23). Each determination method in the risk determination means in step 23 (S-23) is the same as that performed by the monitoring device 11 as described in the flowchart of FIG. When each portable device 14a determines that the risk of developing heat stroke is high by the risk determination means, it transmits an onset risk warning to the worker via the bone conduction speaker 19 (warning transmission means) (S-25). . The worker 12 interrupts the work according to the warning (S-26).

  Each portable device 14a transmits a warning transmission message to the monitoring device 11 (warning transmission message transmission means) when an onset risk warning is transmitted to the worker. The monitoring device 11 receives a warning transmission message from the portable device 14a (warning transmission message receiving means). Upon receiving the warning transmission message, the monitoring device 11 includes the warning transmission message (the portable device 14a to which the warning is transmitted, the name and code number of the worker 12 wearing the portable device 14a, and the work location of the worker 12). ) Is displayed on the display 18 (warning transmission message output means) and the warning transmission message is stored in the hard disk in a state associated with the address of the portable device 14a (warning transmission message storage means).

  The manager in charge can grasp the worker 12 to whom the warning is transmitted via the display 18. If the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable device 14a to the worker 12, the manager in charge goes to the work place and the worker 12 The work is interrupted (S-26). Note that the portable device 14a causes the worker 12 to continue the work (S-24) when it is determined by the risk determination means (S-23) that there is no risk of onset.

  After the worker 12 who has finished the work returns to the break room, or after the worker 12 who interrupted the work due to the warning returns to the break room, the portable device 14a determines whether to stop the work as it is (S). -27). The determination method in step 27 (S-27) is the same as that performed by the monitoring apparatus 11 as described in the flowchart of FIG. The portable device 14a gives a work resumption instruction when the wet bulb black bulb temperature comparison value of the worker 12 who is taking a break returns to a normal value, or when the worker's 12 clothing temperature or clothing humidity falls below a critical value. (Message) is transmitted (message transmitting means). The worker 12 resumes the work according to the work resumption instruction (S-28).

  The heat stroke prevention system 10 described with reference to the flowchart of FIG. 5 is based on the WBGT temperature, measured clothing temperature, and measured clothing humidity of the worker 12 whose portable device 14a is working. When it is determined that the risk of developing heat stroke is high, the portable device 14a notifies the worker of the risk of developing heat, so that the worker 12 can know the risk of developing heat stroke. By the operator 12 interrupting the work, the onset of heat stroke of the worker 12 who is working can be prevented. Even when the worker continues the work ignoring the onset risk warning of the portable device 14a, a warning transmission message is transmitted to the monitoring device 11, and therefore the management responsibility for managing the monitoring device 11 The worker can know the risk of developing heat stroke for a specific worker 12, and the manager responsible forcibly cancels the worker's work to ensure that the worker 12 is working. Can be prevented.

  FIG. 6 is a perspective view of a portable device 14b shown as another example, and FIG. 7 is a side view of the earplug 26 and the bone conduction speaker 19 connected to the portable device 14b of FIG. FIG. 8 is a diagram showing a state where the operator 12 is wearing the portable device 14b of FIG. FIG. 9 is a perspective view of a portable device 14c shown as another example, and FIG. 10 is a side view of an earplug and a bone conduction speaker connected to the portable device 14c of FIG. FIG. 11 is a diagram of a state in which the operator 12 wears the portable device 14c of FIG. In the system 10 using the portable devices 14b and 14c, the case where the risk of developing heat stroke is determined by the WBGT index will be described as an example. Further, it is possible to determine the risk of developing heat stroke based on the temperature in clothes and the humidity in clothes.

  In addition to the WBGT (wet bulb black bulb temperature) index, it is known that the risk of developing heat stroke can be confirmed by monitoring changes in the eardrum temperature (depth body temperature) and heart rate of the worker 12. . The management index for work in a hot environment is, for example, “when the eardrum temperature exceeds 38.0 ° C. (38.5 ° C. when accustomed to a hot environment)”, “the heart rate continues for several minutes. (180-age) ”,“ If the heart rate does not return to 110 or less after 1 minute after the work intensity reaches its peak ”, the heat strain has exceeded the allowable limit. Judgment can be made. Here, “heat strain” means heat stress (the heat generated by the body during work and the external environment, ie, temperature, relative humidity, radiant heat, air flow, and the combined effects of clothes, etc. It is a general term for the physiological response caused by the net heat load that is exposed.

  The monitoring device 11 executes the following means in addition to executing the means already described in the flowchart of FIG. The central processing unit of the monitoring device 11 executes an eardrum temperature risk value storage unit (first storage unit) that stores an eardrum temperature risk value indicating the risk of developing heat stroke, and a heart rate indicating the risk of developing heat stroke. Heart rate risk value storage means (first storage means) for storing the risk value is executed. The central processing unit stores the permissible time of the elapsed time (the elapsed time exceeding the eardrum temperature) that is the time elapsed since the measured eardrum temperature (measured eardrum temperature) exceeds the eardrum temperature danger value. The time allowable time storage means is executed, and the allowable time of the elapsed time (the elapsed time exceeding the heart rate) that is the time that has elapsed since the measured heart rate (measured heart rate) exceeds the heart rate risk value is stored. The allowable time storage means for exceeding the heart rate is executed. The central processing unit executes an eardrum temperature measurement interval storage unit that stores an eardrum temperature measurement interval, and executes a heart rate measurement interval storage unit that stores a heart rate measurement interval.

  The central processing unit of the monitoring device 11 executes measurement eardrum temperature receiving means (second receiving means) that receives the measured eardrum temperature from the portable device 14 and measures heart rate receiving means (receives the measured heart rate from the portable device 14). 2nd receiving means) is executed. The central processing unit executes eardrum temperature storage means for storing the received measured eardrum temperature in time series on the hard disk, and executes heart rate storage means for storing the received measured heart rate in time series on the hard disk. The central processing unit executes risk determination means (first determination means) for determining the risk of developing heat stroke based on the received measured eardrum temperature, measured heart rate, measured clothing temperature, and measured clothing humidity. When it is determined by the risk determining means that the risk of developing heat stroke is high, a warning transmitting means (second transmitting means) for transmitting an onset risk warning to the portable device is executed. The central processing unit executes message transmission means (second transmission means) for transmitting various messages to the portable devices 14b and 14c.

  In the hard disk of the monitoring device 11, the wet bulb black bulb temperature risk value, the eardrum temperature risk value, and the heart rate risk value are stored separately for each of the portable devices 14b and 14c. The hard disk stores the permissible time of the elapsed time (excess elapsed time) that has elapsed since the measured eardrum temperature or the measured heart rate exceeded the dangerous value, for each portable device 14b, 14c. Furthermore, the measurement interval of the eardrum temperature and heart rate and the measurement interval of the temperature in clothes and the humidity in clothes are stored in the hard disk separately for each of the portable devices 14b and 14c.

  The portable devices 14b (14) and 14c (14) are computers having a central processing unit (CPU or MPU) and a memory (storage unit), as in FIG. 2, and have a built-in antenna (not shown). And a temperature sensor (measuring mechanism) and a humidity sensor (measuring mechanism), and have a PHS wireless communication function (including a case of being connected to a PHS wireless communication device in addition to a case of incorporating a PHS wireless communication function). The temperature sensor has a sensor unit 20 installed on one side wall of the mobile devices 14b and 14c, and the humidity sensor has a sensor unit 21 installed on one side wall of the mobile devices 14b and 14c. The portable devices 14b and 14c are detachably accommodated in the chest pocket 24 of the work clothes 13 worn by the operator 12 (if there is a PHS wireless communication device, the wireless communication device is also stored in the chest pocket 24 of the work clothes 13). Housed).

  The portable device 14b (14) shown in FIG. 6 incorporates (installs) an eardrum temperature sensor (not shown) for measuring the eardrum temperature of the operator 12 in addition to the temperature sensor (measuring mechanism) and the humidity sensor (measuring mechanism). ) Ear clip 26 (measuring mechanism), a clip 27 (measuring mechanism) in which a heart rate sensor (not shown) for measuring the heart rate of the operator 12 is installed, A bone conduction speaker 19 (transmission mechanism) for transmitting various messages is provided.

  The bone conduction speaker 19 and the earplug 26 are detachably connected to the portable device 14b via the interface 23. The earplug 26 is removably inserted into the external auditory canal of the operator 12. The eardrum temperature sensor is a thermopile (thermopile) that detects infrared radiation temperature, and is installed inside the tip of the earplug 26 so as to face the eardrum of the operator 12. The eardrum temperature sensor measures the eardrum temperature of the worker 12, converts the measured eardrum temperature into a digital signal, and then transfers the digital signal to the portable device 14b.

  The clip 27 is detachably connected to the portable device 14b via the interface 28. The clip 27 is detachably attached to the earlobe 29 of the operator 12. The heart rate sensor senses that the blood flow flowing through the blood vessel of the earlobe 29 of the operator 12 changes in synchronization with the heartbeat, detects the light transmittance that slightly changes due to fluctuations in the blood flow of the earlobe 29, and detects the heart rate. Measure. The heart rate sensor measures the heart rate of the worker 12, converts the measured heart rate into a digital signal, and then transfers the digital signal to the portable device 14b. The bone conduction speaker 19 is made integrally with the ear plug 26 (an eardrum temperature sensor). The bone conduction speaker 19 is connected to an ear hook 22 that is hooked on the ear shell 25 of the operator 12. The bone conduction speaker 19 and the eardrum temperature sensor are detachably connected to the portable device 14b via the interface 23.

  The portable device 14c shown in FIG. 9 has an ear with a built-in eardrum temperature sensor (not shown) for measuring the eardrum temperature of the worker 12 and a heart rate sensor (not shown) for measuring the heart rate of the worker 12. A plug 26 (measuring mechanism) and a bone conduction speaker 19 (transmitting mechanism) for transmitting an onset risk warning and various messages to the operator 12 are provided. The eardrum temperature sensor is a thermopile that detects the infrared radiation temperature, similar to the portable device 14b of FIG. 6, and is installed inside the tip of the earplug 26 so as to face the eardrum of the operator 12.

  The heart rate sensor in the portable device 14c includes an infrared light emitting diode 30 (light emitting element) and a photosensor 31 (light receiving element) (see FIG. 10). The diode 30 and the photosensor 31 are installed side by side on the side wall of the earplug 26 so as to face the surface of the ear canal of the worker 12. The light emitting diode 30 irradiates the surface of the ear canal with infrared light, and reflects the intensity of the infrared light reflected from the surface of the ear canal skin or the intensity of the infrared light transmitted through the skin of the ear canal proportional to the heartbeat, and reflected from the surface of the ear canal. Infrared light is received by the photosensor 31 to measure the heart rate. The eardrum temperature sensor measures the eardrum temperature of the worker 12, converts the measured eardrum temperature into a digital signal, and then transfers the digital signal to the portable device 14c. The heart rate sensor measures the heart rate of the worker 12, converts the measured heart rate into a digital signal, and then transfers the digital signal to the portable device 14c.

  The portable devices 14b and 14c execute the following means in addition to executing the means already described in the flowchart of FIG. The central processing unit of the portable devices 14 b and 14 c executes an eardrum temperature measuring unit that measures the eardrum temperature of the worker 12 through the earplug 26, and calculates the heart rate of the worker 12 through the earplug 26 or the clip 27. The heart rate measuring means to measure is executed. The central processing unit executes an eardrum temperature transmitting unit (first transmitting unit) that transmits the measured measured eardrum temperature to the monitoring device 11, and transmits a measured heart rate to the monitoring device 11. Transmission means).

  An example of the heat stroke prevention process of the system 10 using the portable devices 14b and 14c will be described with reference to FIG. Note that “measure eardrum temperature and heart rate” is added to step 12 (S-12) in FIG. 4, and “tympanic temperature and heart rate are transmitted to step 13 (S-13) in FIG. "Is added. The manager in charge switches on the monitoring device 11, operates the monitoring device 11, and sets a dangerous value, an allowable time, and a measurement interval (S-20). When the monitoring device 11 is activated, an initial setting screen (not shown) is displayed on the display 18.

  The initial setting screen includes an attribute input area for the operator 12, an identification name input area for the portable devices 14b and 14c, a wet bulb black bulb temperature risk value input area, an eardrum temperature risk value input area, a heart rate risk value input area, and an eardrum. Allowable time input area for excess elapsed time of temperature, Allowable time input area for excess elapsed time of heart rate, Measurement interval input area for clothing temperature, Measurement interval input area for humidity in clothing, Tympanic temperature measurement interval input area, Heart rate A number measurement interval input area, a data storage button, a clear button, and a logout button are displayed.

  The manager in charge inputs data in the attribute input area and the identification name input area, and inputs the wet bulb black bulb temperature risk value (as described in the WBGT index) in the wet bulb black bulb temperature risk value input area. Further, an eardrum temperature risk value (for example, 38.0 ° C., 38.5 ° C. for an operator accustomed to a hot environment) is input to the eardrum temperature risk value input area. Enter a heart rate risk value (for example, 180-age) in the heart rate risk value input area, and enter an allowable time (for example, 0, 3 minutes, 5 minutes, etc.) in the allowable time input area for the excess elapsed time of the eardrum temperature. In addition, an allowable time (for example, 0, 3 minutes, 5 minutes, etc.) is input in the allowable time input area for the elapsed time exceeding the heart rate. The person in charge of management inputs the measurement intervals in the measurement interval input area for the in-clothing temperature and the measurement interval input area for the in-clothing humidity, and the measurement interval (for example, an interval of 0 or 30 seconds) 1-minute intervals, etc.) and a measurement interval (for example, 0 or 30-second intervals, 1-minute intervals, etc.) is entered in the heart rate measurement interval input area. When the measurement interval is 0, the eardrum temperature and the heart rate are continuously measured.

  A plurality of different eardrum temperature risk values can be input, and a plurality of different heart rate risk values can also be input. Also, a plurality of different allowable times can be input. As an example of this case, a first eardrum temperature risk value (for example, 37.5 ° C., 38.0 ° C. for the worker 12 accustomed to a hot environment) is input, and the corresponding eardrum temperature excess progress is input. Enter an allowable time (for example, 5 minutes). The second eardrum temperature risk value (for example, 38.0 ° C., 38.5 ° C. for the worker 12 accustomed to the hot environment) is input, and the corresponding eardrum temperature excess elapsed time allowable time (for example, 3 minutes). Further, a first heart rate risk value (for example, (180−age) × 0.9) is input, and a corresponding heart rate excess elapsed time allowable time (for example, 5 minutes) is input. A second heart rate risk value (for example, 180-age) is input, and a corresponding heart rate excess elapsed time allowable time (for example, 3 minutes) is input.

  After entering the necessary data in these input areas, click the store button. When the store button is clicked, a data confirmation screen (not shown) is displayed on the display 18. After confirming the attribute, risk value, allowable time, and measurement interval, if the entered data is correct, click the data confirmation button. When the data confirmation button is clicked, the monitoring device 11 associates the attribute, identification name, wet bulb black bulb temperature risk value danger value, clothing temperature measurement interval, and clothing humidity measurement interval with the addresses of the portable devices 14b and 14c. Is stored in the hard disk (each storage means). The monitoring device 11 stores the eardrum temperature risk value in the hard disk in a state associated with the address of the portable devices 14b and 14c (the eardrum temperature risk value storage unit), and associates the heart rate risk value with the address of the portable devices 14b and 14c. The state is stored in the hard disk (heart rate risk value storage means).

  The monitoring device 11 stores the eardrum temperature excess elapsed time allowable time in a hard disk in a state associated with the addresses of the portable devices 14b and 14c (the eardrum temperature excess elapsed time allowable time storage unit), and carries the heart rate excess elapsed time allowable time with the portable device. It is stored in the hard disk in a state associated with the addresses of the devices 14b and 14c (heart rate excess elapsed time allowable time storage means). The monitoring device 11 stores the tympanic temperature measurement interval in association with the address of the portable devices 14b and 14c in the hard disk (the eardrum temperature measurement interval storage means), and sets the heart rate measurement interval to the address of the portable devices 14b and 14c. The associated state is stored in the hard disk (heart rate measurement interval storage means).

  Wet bulb black bulb temperature danger value danger value, eardrum temperature danger value, heart rate danger value, permissible time of excess elapsed time of eardrum temperature, and permissible time of excess elapsed time of heart rate for each portable device 14b, 14c (each Different values and times are set for each worker 12). Wet bulb black bulb temperature danger value danger value, eardrum temperature danger value, heart rate danger value, allowable time, and measurement interval can be changed by an input device. The procedure for changing the attribute of the worker 12, the identification names of the portable devices 14b and 14c, the danger value, the allowable time, and the measurement interval is as described in the flowchart of FIG.

  Check the attribute, identification name, each risk value, each allowable time, and each measurement interval. If there is no error or no change, the manager responsible for the work in the nuclear power plant 15 by the operator 12 Before starting, the portable devices 14b and 14c are handed to each worker 12. The portable devices 14b and 14c are individually assigned to each worker 12 individually. Each worker 12 receiving the portable devices 14b and 14c stores the portable devices 14b and 14c in the chest pocket 24 of the work clothes 13, inserts the earplugs 26 into the ear canal, and hangs the ear hooks 22 on the ear shells 25. After the earplug 26 and the bone conduction speaker 19 are attached, the earlobe 29 is sandwiched between the clips 27 and the clips 27 are attached. 8 and 11, the sensor units 20 and 21 of the portable devices 14b and 14c are installed so that the sensor unit 20 of the temperature sensor and the sensor unit 21 of the humidity sensor face the skin of the worker 12. The made side wall is made to face the skin of the operator 12. The worker 12 wears the earplug 26, the bone conduction speaker 19, and the clip 29, arrives at the work location, turns on the switches (not shown) of the portable devices 14b and 14c, and starts work at the work location.

  When the portable devices 14b and 14c are switched on, the permissible times and the measurement intervals are transmitted from the monitoring device 11 to the portable devices 14b and 14c, and the portable devices 14b and 14c receive them. Further, when there are messages such as work instructions and precautions, these messages are transmitted to the portable devices 14b and 14c using PHS wireless communication (message transmitting means). Each allowable time and each measurement interval may be individually set in the portable devices 14b and 14c. In this case, the allowable time and measurement interval (including the private IP addresses and MAC addresses of the portable devices 14b and 14c) are conversely not transmitted from the monitoring device 11 to the portable devices 14b and 14c. It is transmitted from the portable devices 14b and 14c to the monitoring device 11, and is stored in the hard disk of the monitoring device 11 in a state where the allowable time and the measurement interval are associated with the addresses of the portable devices 14b and 14c.

  Each portable device 14b, 14c receives various messages from the monitoring device 11 using PHS wireless communication (message receiving means), and transmits the received messages to the worker 12 (message transmitting means) (S-). 11). Each portable device 14b, 14c measures the in-clothing temperature of the worker 12 during the work according to the measurement interval (in-clothes temperature measuring means) (S-12), and determines the in-clothes temperature of the worker 12 during the work. Measure (in-clothes humidity measuring means) (S-12). Furthermore, each portable device 14b, 14c measures the eardrum temperature of the worker 12 during the work according to the measurement interval (the eardrum temperature measuring means) (S-12) and measures the heart rate of the worker 12 during the work. (Heart rate measuring means) (S-12).

  The portable devices 14b and 14c transmit the measured measurement clothing temperature (digital signal) together with the private IP address and MAC address to the monitoring device 11 (clothing temperature transmission means) (S-13) and measure the measurement clothing. The internal humidity (digital signal) is transmitted to the monitoring device 11 (in-clothy humidity transmitting means) (S-13). The portable devices 14b and 14c transmit the measured measured eardrum temperature together with these addresses to the monitoring device 11 (eardrum temperature transmitting means) (S-13), and transmit the measured measured heart rate to the monitoring device 11 (heartbeat). Number transmission means) (S-13).

  The monitoring device 11 receives the measurement clothing inner temperature and the measurement clothing humidity from the portable devices 14b and 14c (measurement clothing temperature receiving means, measurement clothing humidity reception means), and the received measurement clothing temperature and measurement clothing humidity. Are stored in time series on the hard disk in a state associated with the addresses of the portable devices 14b and 14c (in-clothes temperature storage means, in-clothes humidity storage means). The monitoring device 11 receives the measured eardrum temperature and the measured heart rate from the portable devices 14b and 14c (measured eardrum temperature receiving unit and measured heart rate receiving unit), and the received measured eardrum temperature and measured heart rate are stored in the portable devices 14b and 14c. Are stored in time series on the hard disk in a state associated with the address (eardrum temperature storage means, heart rate storage means). Next, the monitoring device 11 calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) based on the received measurement clothing internal temperature and measurement clothing humidity, and the computed wet bulb black. The risk of developing heat stroke is determined based on the comparison value of the bulb temperature, the measured eardrum temperature, and the measured heart rate (risk determination means) (S-14).

  An example of risk determination is as follows. The monitoring device 11 compares the calculated wet bulb black bulb temperature comparison value (WBGT temperature) with the wet bulb black bulb temperature risk value (WBGT temperature), and the wet bulb black bulb temperature comparison value is the wet bulb black bulb temperature danger value. The current risk of developing heat stroke is determined according to the WBGT index. When the WBGT temperature is a normal value (WBGT temperature exceeds 21 degrees and is 25 degrees or less, or WBGT temperature is 21 degrees or less), it is determined that there is no risk of onset, and the worker 12 continues the work (S-15). . When the monitoring device 11 determines that the risk of developing heat stroke is high according to the WBGT index (WBGT temperature: 31 degrees or more, WBGT temperature: more than 28 degrees and less than 31 degrees, WBGT temperature: more than 25 degrees and less than 28 degrees ), A crisis risk warning (the message according to the WBGT index) is transmitted to the portable device 14a using PHS wireless communication (warning transmission means). The worker 12 interrupts the work according to the warning (S-17).

  Another example of the risk determination is as follows. The monitoring device 11 determines whether or not the measured eardrum temperature exceeds the eardrum temperature risk value (measurement eardrum temperature> eardrum temperature risk value) and whether the measured heart rate exceeds the heart rate risk value (measurement heart rate> heart rate) Number risk value). The monitoring device 11 has at least one of the measured eardrum temperature not more than the eardrum temperature dangerous value (measured eardrum temperature ≦ the eardrum temperature dangerous value) and the measured heart rate not more than the heart rate dangerous value (measured heart rate ≦ heart rate dangerous value). In either case, it is determined that there is no risk of onset, and the worker 12 is allowed to continue the work (S-15).

  The monitoring device 11 includes: a measured eardrum temperature exceeding an eardrum temperature risk value (measured eardrum temperature> an eardrum temperature risk value) and a measured heart rate exceeding a heart rate risk value (measured heart rate> heart rate risk value). In at least one of the cases, it is determined whether the elapsed time has passed the allowable time (the eardrum temperature excess elapsed time> allowable time, the heart rate excess elapsed time> allowable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that there is no risk of onset, and causes the operator 12 to continue the operation (S-15).

  The monitoring device 11 includes: an eardrum temperature excess elapsed time exceeding an allowable time (eardrum temperature excess elapsed time> allowable time) and a heart rate excess elapsed time exceeding an allowable time (heart rate excess elapsed time> allowable time). In at least one of the cases, it is determined that the risk of developing heat stroke is high, and an onset risk warning is transmitted to the portable devices 14b and 14c using PHS wireless communication (warning transmitting means). When the permissible time of the excess elapsed time of the eardrum temperature or the heart rate is 0, the monitoring device 11 immediately after the measured eardrum temperature exceeds the eardrum temperature risk value or immediately after the measured heart rate exceeds the heart rate risk value. The onset risk warning is transmitted to the portable devices 14b and 14c (warning transmitting means). The worker 12 interrupts the work according to the warning (S-17).

  On the display 18 of the monitoring device 11, the contents of the warning, the portable devices 14b and 14c to which the warning is transmitted, the name and code number of the worker 12 wearing the portable devices 14b and 14c, and the work location of the worker 12 are displayed. Is displayed. The person in charge of management can grasp the worker 12 who has a high risk of developing heat stroke via the display 18. In the case where the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable devices 14b and 14c to the worker 12, the manager in charge goes to the work place and the worker 12 is interrupted (S-17).

  Another example of the risk determination is as follows. The monitoring device 11 determines whether the measured eardrum temperature has exceeded the first eardrum temperature risk value (measured eardrum temperature> first eardrum temperature risk value) and whether the measured heart rate has exceeded the first heart rate risk value (Measured heart rate> first heart rate risk value) is determined. The monitoring device 11 determines that the measured eardrum temperature is less than or equal to the first eardrum temperature risk value (measured eardrum temperature ≦ first eardrum temperature risk value) and the measured heart rate is less than or equal to the first heart rate risk value (measurement heart rate ≦ first heart rate risk). Value), it is determined that there is no risk of onset, and the worker 12 is allowed to continue the work (S-15).

  The monitoring device 11 determines that the measured eardrum temperature exceeds the first eardrum temperature risk value (measured eardrum temperature> first eardrum temperature risk value) and the measured heart rate exceeds the first heart rate risk value (measurement heart rate> first heart rate). In the case of at least one of the (numerical risk value), it is determined whether the elapsed time has passed the allowable time (the eardrum temperature excess elapsed time> allowable time, the heart rate excess elapsed time> allowable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that there is no risk of onset, and causes the operator 12 to continue the operation (S-15).

  When the elapsed time exceeds the allowable time, the monitoring device 11 determines that the risk of developing heat stroke is moderate, and transmits a first risk of warning to the mobile devices 14b and 14c using PHS wireless communication. (Warning transmission means) When the permissible time of the excess elapsed time of the eardrum temperature or the heart rate is 0, the monitoring device 11 immediately after the measured eardrum temperature exceeds the first eardrum temperature risk value or the measured heart rate has the first heart rate risk value. Immediately after exceeding, the first onset risk warning is transmitted to the portable devices 14b and 14c (warning transmitting means).

  The portable devices 14b and 14c receive the first onset risk warning transmitted from the monitoring device 11 (warning receiving means) and transmit the received warning to the operator 12 (warning transmitting means) (S-16). As a warning, for example, a voice instruction such as “the body temperature and the heart rate are rising. Pay attention to the physical condition.” Is transmitted to the operator 12 through the bone conduction speaker 19. Alternatively, a warning sound indicating a medium risk is emitted to the worker 12 through the bone conduction speaker 19. The worker 12 decides whether to continue or interrupt the work by self-judgment. On the display 18 of the monitoring device 11, the contents of the warning, the portable devices 14b and 14c to which the warning is transmitted, the name and code number of the worker 12 wearing the portable devices 14b and 14c, and the work location of the worker 12 are displayed. Is displayed. The person in charge of management can grasp the worker 12 who has a moderate risk of developing heat stroke via the display 18.

  The monitoring device 11 transmits the first onset risk warning to the portable devices 14b and 14c, and then the measured eardrum temperature exceeds the second eardrum temperature risk value (measured eardrum temperature> second eardrum temperature risk value) and measures. It is determined whether the heart rate has exceeded the second heart rate risk value (measured heart rate> second heart rate risk value). In at least one of (measured eardrum temperature ≦ second eardrum temperature risk value) and (measured heart rate ≦ second heart rate risk value), the monitoring device 11 still has a moderate onset risk. Judge. The monitoring device 11 determines that the measured eardrum temperature exceeds the second eardrum temperature risk value (measurement eardrum temperature> second eardrum temperature risk value) and the measured heart rate exceeds the second heart rate risk value (measurement heart rate> second heart rate). In the case of at least one of the (numerical risk value), it is determined whether the elapsed time has passed the allowable time (the eardrum temperature excess elapsed time> allowable time, the heart rate excess elapsed time> allowable time). When the elapsed time is equal to or shorter than the allowable time (elapsed time ≦ allowable time), the monitoring device 11 determines that the onset risk is moderate.

  At least one of the eardrum temperature excess elapsed time exceeds the allowable time (eardrum temperature excess elapsed time> allowable time) and the heart rate excess elapsed time exceeds the allowable time (heart rate excess elapsed time> allowable time) In this case, the monitoring device 11 determines that the risk of developing heat stroke is high, and transmits a second risk of onset risk to the portable devices 14b and 14c using PHS wireless communication (warning transmission means). When the allowable elapsed time is 0, the monitoring device 11 transmits a second onset risk warning to the portable devices 14b and 14c immediately after the eardrum temperature and the heart rate exceed the second risk value ( Warning transmission means).

  The portable devices 14b and 14c receive the second onset risk warning transmitted from the monitoring device 11 (warning receiving means), and transmit the received warning to the worker 12 (warning transmitting means) (S-15). As a warning, for example, the bone conduction speaker 19 gives a voice instruction such as (measured value has exceeded the dangerous value. Stop the work immediately. Return to the rest area and rest and replenish water). To the operator 12 via Alternatively, a warning sound indicating a high risk is emitted to the worker 12 through the bone conduction speaker 19. The worker 12 interrupts the work according to the warning (S-17).

  On the display 18 of the monitoring device 11, the contents of the warning, the portable devices 14b and 14c to which the warning is transmitted, the name and code number of the worker 12 wearing the portable devices 14b and 14c, and the work location of the worker 12 are displayed. Is displayed. The person in charge of management can grasp the worker 12 who has a high risk of developing heat stroke via the display 18. In the case where the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable devices 14b and 14c to the worker 12, the manager in charge goes to the work place and the worker 12 is interrupted (S-17).

  After the worker 12 who has finished the work returns to the break room, or after the worker 12 who interrupted the work due to the warning returns to the break room, the monitoring device 11 determines whether to stop the work as it is (S). -18). The portable devices 14b and 14c measure the temperature inside the clothes and the humidity inside the clothes of the worker 12 taking a break in the break room (the temperature measurement means inside the clothes, the humidity measurement means inside the clothes), and the eardrum temperature of the worker 12 during the break And measure heart rate (tympanic temperature measuring means, heart rate measuring means). The portable devices 14b and 14c transmit the measured measurement clothing temperature and measurement clothing humidity together with the private IP address and MAC address to the monitoring device 11 (clothing temperature transmission means and clothing humidity transmission means), and measure the measurement. The eardrum temperature and the measured heart rate are transmitted to the monitoring device 11 (the eardrum temperature transmission unit, the heart rate transmission unit).

  The monitoring device 11 receives the measurement clothing temperature and the measurement clothing humidity from the portable devices 14b and 14c (measurement clothing temperature reception means and measurement clothing humidity reception means), and receives the measurement eardrum temperature and the measurement heart rate ( Measuring eardrum temperature receiving means, measuring heart rate receiving means). When the monitoring device 11 receives the measurement clothing temperature, the measurement clothing humidity, the measurement eardrum temperature, and the measurement heart rate, the monitoring device 11 stores the measurement clothing temperature and the measurement clothing humidity in association with the addresses of the portable devices 14b and 14c. Store in time series (in-clothes temperature storage means, in-clothes humidity storage means), and store measured eardrum temperature and measured heart rate in time series on the hard disk in a state associated with the addresses of the portable devices 14b and 14c (eardrum temperature) Storage means, heart rate storage means). Next, the monitoring device 11 calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) based on the received measurement clothing internal temperature and measurement clothing humidity, and the computed wet bulb black. Based on the bulb temperature comparison value, the received measured eardrum temperature, and the measured heart rate, the risk of developing heat stroke of the worker 12 during the break is determined (risk determination means).

  The monitoring device 11 uses PHS wireless communication when the wet bulb black bulb temperature comparison value of the worker 12 who is taking a break returns to a normal value, or when the eardrum temperature or heart rate of the worker 12 is below a dangerous value. Then, a work resumption instruction (message) is transmitted to the portable devices 14b and 14c (message transmission means). The portable devices 14b and 14c receive the message from the monitoring device 11 using PHS wireless communication (message receiving means), and transmit the received message to the worker 12 (message transmitting means). The worker 12 resumes the work according to the work resumption instruction (S-19). Note that the wet bulb black bulb temperature comparison value of the worker 12 during the break does not return to the normal value even after a predetermined time (for example, 1 minute, 3 minutes, 5 minutes, etc.) has elapsed, and the eardrum temperature and heart rate of the worker 12 Is over the dangerous value even after a predetermined time (for example, 1 minute, 3 minutes, 5 minutes, etc.), the work of the operator 12 is immediately stopped without resuming the work.

  The heat stroke prevention system 10 determines the risk of developing heat stroke of the worker 12 based on the WBGT temperature, the measured eardrum temperature, and the measured heart rate of the worker 12 who is working. The person in charge of management can know the risk of developing the heat stroke of the worker 12, and the person in charge of the management can objectively monitor the defense of the worker 12 against heat stroke. When the system 10 determines that the risk of developing heat stroke is high, the monitoring device 11 transmits an onset risk warning to the portable device 14a, and the portable device 14a transmits the onset risk warning to the worker. The worker 12 can know the risk of developing heat stroke, and when the worker 12 interrupts the work, the worker 12 who is working can be prevented from developing heat stroke. Since the system 10 can identify the worker 12 (mobile device 14a) having a high risk of onset in the monitoring device 11, even if the worker 12 ignores the risk of onset and continues the work, heat stroke The person in charge of management can promptly interrupt the work of the worker 12 who is at risk of developing the disease, and can reliably prevent the onset of heat stroke of the worker 12 who is working.

  Another example of the heat stroke prevention process of the system 10 using the portable devices 14b and 14c will be described with reference to FIG. Note that “measure eardrum temperature and heart rate” is added to step 22 (S-22) of FIG. In the heat stroke prevention process of FIG. 5, the central processing unit of the monitoring device 11 is a measuring clothing internal temperature receiving means among the means described with reference to the flowchart of FIG. 4 in the system 10 using the portable devices 14 b and 14 c. , Measuring clothes humidity receiving means, measuring eardrum temperature receiving means, measuring heart rate receiving means, clothing temperature storage means, clothing humidity storing means, eardrum temperature storing means, heart rate storing means, wet bulb black bulb temperature comparison value calculation The means, the risk determination means (first determination means), and the warning transmission means are not executed. In the heat stroke prevention process of FIG. 5, the portable devices 14 b and 14 c execute other means described with the aid of the flowchart of FIG. 4 (in-clothing temperature transmission means, in-clothes humidity transmission means, tympanic temperature transmission means, The heart rate transmission means is not executed) and the following means are executed together.

  The central processing unit of the portable devices 14b and 14c executes wet bulb black bulb temperature risk value storage means (second storage means) for storing wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and heat stroke The heart rate risk value storage means for storing the eardrum temperature risk value storage means (second storage means) for storing the eardrum temperature risk value indicating the risk of developing heat, and for storing the heart rate risk value indicating the risk of developing heat stroke The means (second storage means) is executed. The central processing unit executes an eardrum temperature excess elapsed time allowable time storage unit that stores an allowable time of elapsed time that is a time that has elapsed since the measured eardrum temperature exceeds the eardrum temperature danger value, and the measured heart rate is A heart rate excess elapsed time permissible time storage means for storing a permissible time of elapsed time, which is a time elapsed after exceeding the heart rate risk value, is executed.

  The central processing unit of the portable devices 14b and 14c executes the in-clothes temperature measurement interval storage means and the in-clothes humidity measurement interval storage means for storing the measurement intervals of the in-clothes temperature and the in-clothes humidity, and measures the eardrum humidity and the heart rate. An eardrum temperature measurement interval storage means and a heart rate measurement interval storage means for storing the interval are executed. The central processing unit executes wet bulb black bulb temperature risk value calculating means for calculating a wet bulb black bulb temperature comparison value based on the measured measured clothing inner temperature and measured clothing inner humidity. The central processing unit executes risk determination means (second determination means) for determining the risk of developing heat stroke based on the calculated wet bulb black bulb temperature comparison value, and measures the measured eardrum temperature and the measured heart rate. Based on the above, risk determination means (second determination means) for determining the risk of developing heat stroke is executed. When the central processing unit determines that the risk of developing heat stroke is high by the risk determination unit, the central processing unit executes a warning transmission unit (transmission unit) that transmits the onset risk warning to the operator via the bone conduction speaker 19.

  The manager in charge switches on the monitoring device 11 and the portable devices 14b and 14c, operates the devices 11, 14b, and 14c, and sets the dangerous value, allowable time, and measurement interval (S-20). When the portable devices 14b and 14c are operated, an initial setting screen (not shown) is displayed on a display (not shown) mounted on the devices 14b and 14c. The initial screen is the same as that displayed on the display 18 of the monitoring device 11. The manager in charge uses the key units (not shown) of the devices 14b and 14c to input necessary data into each input area, and individually sets each danger value, each allowable time, and each measurement interval. Each danger value, each allowable time, and each measurement interval (including the private IP addresses and MAC addresses of the portable devices 14b and 14c) are stored in the memories of the portable devices 14b and 14c (each storage means), and the portable device 14b. , 14c to the monitoring device 11, and each risk value, each allowable time, and each measurement interval are stored in the hard disk of the monitoring device 11 in a state associated with the address of the portable device 14b, 14c (each storage unit).

  After setting the dangerous value, allowable time, and measurement interval, the portable devices 14b and 14c and the bone conduction speaker are worn by the operator. The worker wearing them starts work at the work location. When there are messages such as work instructions and precautions, each of the mobile devices 14b and 14c receives various messages from the monitoring device 11 using PHS wireless communication (message receiving means), and receives the received messages from the worker 12. (Message transmission means) (S-21).

  Each portable device 14b, 14c measures the in-clothing temperature and the in-clothing humidity of the worker 12 during work according to the measurement interval (in-clothing temperature measuring means, in-clothes humidity measuring means) (S-22). Twelve eardrum temperatures and heart rate are measured (tympanic temperature measuring means, heart rate measuring means) (S-22). Each portable device 14b, 14c calculates a wet bulb black bulb temperature comparison value (wet bulb black bulb temperature comparison value calculation means) based on the measured measured clothing inner temperature and measured clothing humidity, and the calculated wet bulb black The risk of developing heat stroke is determined based on the sphere temperature comparison value, the measured measured eardrum temperature, and the measured heart rate (risk determination means) (S-23). Each determination method in the risk determination means in step 23 (S-23) is the same as those performed by the monitoring device 11 as described above with reference to the flowchart of FIG. When each of the portable devices 14b and 14c determines that the risk of developing heat stroke is high by the risk determination unit, the portable device 14b and 14c transmits an onset risk warning to the operator via the bone conduction speaker 19 (warning transmission unit) (S-). 25). The worker 12 interrupts the work according to the warning (S-26).

  Each portable device 14b, 14c transmits a warning transmission message to the monitoring device 11 (warning transmission message transmission means) when an onset risk warning is transmitted to the worker. The monitoring device 11 receives a warning transmission message from the portable devices 14b and 14c (warning transmission message receiving means). Upon receiving the warning transmission message, the monitoring device 11 receives the warning transmission message (the portable devices 14b and 14c to which the warning has been transmitted, the name and code number of the worker 12 wearing the portable devices 14b and 14c, and the worker 12 (Including the work location) is displayed on the display 18 (warning transmission message output means), and the warning transmission message is stored in the hard disk in a state associated with the addresses of the portable devices 14b and 14c (warning transmission message storage means).

  The manager in charge can grasp the worker 12 to whom the warning is transmitted via the display 18. In the case where the worker 12 does not follow the warning instruction and continues the work even though the warning is transmitted from the portable devices 14b and 14c to the worker 12, the manager in charge goes to the work place and the worker 12 is interrupted (S-26). Note that the portable devices 14b and 14c cause the worker 12 to continue the work (S-24) when the risk judging means (S-23) judges that there is no risk of onset.

  After the worker 12 who has finished the work returns to the break room, or after the worker 12 whose work has been interrupted by a warning returns to the break room, the portable devices 14b and 14c determine whether to stop the work as it is. (S-27). The determination method in step 27 (S-27) is the same as that performed by the monitoring device 11, as already described with reference to the flowchart of FIG. The portable devices 14b and 14c are instructed to resume work when the wet bulb black bulb temperature comparison value of the worker 12 during a break returns to a normal value, or when the eardrum temperature or heart rate of the worker 12 falls below a critical value. (Message) is transmitted (message transmitting means). The worker 12 resumes the work according to the work resumption instruction (S-28).

  The heat stroke prevention system 10 described with the aid of the flowchart of FIG. 5 is based on the WBGT temperature, the measured eardrum temperature, and the measured heart rate of the worker 12 whose portable devices 14b and 14c are working. If the portable device 14b, 14c notifies the worker of the onset risk warning when the onset risk of heat stroke is determined, the worker 12 reports the onset risk of heat stroke. It is possible to know, and the worker 12 interrupting the work can prevent the onset of heat stroke of the worker 12 who is working. Even if the worker continues working ignoring the onset risk warning of the portable devices 14b and 14c, the warning transmission message is transmitted to the monitoring device 11, so the monitoring device 11 is managed. The person in charge of management can know the risk of developing heat stroke of a specific worker 12, and the person in charge of management forcibly cancels the work of the worker so that the onset of heat stroke of the worker 12 who is working Can be surely prevented.

DESCRIPTION OF SYMBOLS 10 Heat stroke prevention system 11 Monitoring apparatus 12 Worker 13 Work clothes (clothing)
14 Mobile device 14a Mobile device 14b Mobile device 14c Mobile device 15 Nuclear power plant (nuclear facility)
DESCRIPTION OF SYMBOLS 19 Bone conduction speaker 20 Sensor part of temperature sensor 21 Sensor part of humidity sensor 26 Ear plug 27 Clip 30 Infrared light emitting diode (light emitting element)
31 Photosensor (light receiving element)

Claims (11)

In the heat stroke prevention system that conveys the risk of developing heat stroke to workers working in the prescribed work environment and prevents the worker from developing heat stroke,
The system is formed of a portable device that is individually carried by a plurality of the workers and is detachably attached to the clothes of the workers, and a monitoring device that monitors the risk of developing heat stroke of the workers, The portable device is installed in the portable device to measure the temperature in the clothes of the worker, the humidity sensor is installed in the portable device to measure the humidity in the clothes of the worker, and the measured clothing A first transmitting means for transmitting the internal temperature and the humidity in the clothes to the monitoring device; a first receiving means for receiving the onset risk warning from the monitoring device; and the onset risk received from the monitoring device Transmission means for transmitting a warning to the worker, and the monitoring device receives second in-clothing temperature and in-clothing humidity from the portable device, and the received in-clothing temperature and in-clothing humidity. And less of If also observed to have a high incidence risk for heat illness based on one, heat stroke prevention system characterized by a second transmission means for transmitting the onset risk warning to the portable device.   The monitoring device includes first determination means for determining a risk of developing heat stroke based on at least one of the in-clothing temperature and the in-clothing humidity received by the second receiving means, and the second transmitting means However, the heat stroke prevention system according to claim 1, wherein, when the first determination means determines that the risk of developing heat stroke is high, the heat risk warning is transmitted to the portable device.   The monitoring device includes first storage means for storing a wet bulb black bulb temperature risk value indicating the risk of developing heat stroke, and the first determination means includes the in-clothing temperature and the clothing transmitted from the portable device. While calculating the wet bulb black bulb temperature comparison value from the internal humidity, the wet bulb black bulb temperature risk value was compared with the calculated wet bulb black bulb temperature comparison value, and the comparison value exceeded the danger value The heat stroke prevention system according to claim 3, wherein it is determined that the risk of developing heat stroke is high.   The portable device includes second determination means for determining a risk of developing heat stroke based on at least one of the in-clothing temperature and the in-clothing humidity measured by the sensors, and the transmission means includes the second The heat stroke prevention system according to any one of claims 1 to 3, wherein when the determination means determines that the risk of developing heat stroke is high, the warning of the risk of developing heat is transmitted to the worker.   The portable device includes a second storage means for storing a wet bulb black bulb temperature risk value indicating the risk of developing the heat stroke, and the second determination means measures the in-clothes temperature and the in-clothes measured by the measurement mechanism. When calculating the wet bulb black bulb temperature comparison value from the humidity, comparing the wet bulb black bulb temperature risk value with the calculated wet bulb black bulb temperature comparison value, and the comparison value exceeds the danger value The heat stroke prevention system according to claim 4, wherein it is determined that the risk of developing heat stroke is high.   The portable device is connected to the portable device and removably inserted into the worker's external ear canal, and is connected to the portable device with an earplug in which an eardrum temperature sensor is installed to measure the temperature of the worker's eardrum And a clip that is removably attached to the operator's earlobe and provided with a heart rate sensor for measuring the heart rate of the operator, and the transmission means is connected to the portable device and connected to the ear. It is formed of a bone conduction speaker that is integrally formed with a stopper and transmits the onset risk warning to the operator's skull, and the first transmission means monitors the eardrum temperature and the heart rate measured by the sensors. 5. The apparatus according to claim 4, wherein the first determination means and the second determination means determine the risk of heat stroke based on at least one of the measured eardrum temperature and the measured heart rate. Item 5 Heat stroke prevention system.   The portable device is connected to the portable device and is detachably inserted into the worker's ear canal, and the eardrum temperature sensor for measuring the worker's eardrum temperature and the heart rate sensor for measuring the worker's heart rate The transmission means is formed from a bone conduction speaker that is connected to the portable device and is integrated with the earplug and transmits the risk of onset to the operator's skull. The first transmission means transmits the eardrum temperature and the heart rate measured by the sensors to the monitoring device, and the first determination means and the second determination means are configured to determine the measured eardrum temperature and the The heat stroke prevention system according to claim 4 or 5, wherein the risk of heat stroke is determined based on at least one of the measured heart rate.   The first storage means stores an eardrum temperature risk value and a heart rate risk value indicating the risk of developing heat stroke, and the first determination means transmits the measured eardrum temperature and the eardrum transmitted from the portable device. The temperature risk value is compared, the measured heart rate transmitted from the portable device is compared with the heart rate risk value, and at least one of the measured eardrum temperature and the measured heart rate is the risk value. The heat stroke prevention system according to claim 6 or 7, wherein when it exceeds, the risk of developing the heat stroke is determined to be high.   The second storage means stores an eardrum temperature risk value and a heart rate risk value indicating the risk of developing heat stroke, and the second determination means measures the measured eardrum temperature and the eardrum temperature measured by the measurement mechanism. Comparing the risk value with the measured heart rate measured by the measurement mechanism and the heart rate risk value, and at least one of the measured eardrum temperature and the measured heart rate exceeds the risk value The heat stroke prevention system according to any one of claims 6 to 8, wherein the heat stroke is determined to have a high risk of onset.   The heat stroke prevention system according to any one of claims 1 to 9, wherein the first transmission / reception means of the portable device and the second transmission / reception means of the monitoring device are PHS wireless communication.   The heat stroke prevention system according to any one of claims 1 to 10, wherein the work environment is a shielded work environment in a nuclear facility where there is a risk of contamination by radioactive substances.

Images