JP7074106B2 - Heat stroke risk calculation system, heat stroke risk calculation program, and computer-readable recording medium - Google Patents

Description

The present invention is a heat stroke risk calculation system and a heat stroke risk calculation program for calculating the risk of heat stroke by a user based on the detection data of various sensors that detect the user's biological information and environmental information. , And a computer-readable recording medium.

Conventionally, in order to reduce the risk of heat stroke for a target person such as a worker, a system has been proposed in which information such as the body temperature of the target person is acquired and the risk of heat stroke is judged based on the acquired information. (See, for example, Patent Document 1). For the judgment of the risk of heat stroke, a method using the detected values in the past several hours is known. For example, in Patent Document 1, based on the amount of activity calculated for the contribution of the exercise intensity of the user to the calculation period of the most recent constant length retroactive from the present time, and the environmental information obtained from the ambient temperature and the like. It describes a technique for finding a risk index that indicates the risk of a user suffering from heat stroke.

Japanese Unexamined Patent Publication No. 2012-210233

The above-mentioned prior art describes a configuration in which the amount of activity is initialized when the exercise intensity of the user is less than a predetermined level and continues for a predetermined time. However, even if you take frequent breaks between tasks, the accumulated risk of heat stroke does not disappear immediately. That is, in the prior art, it was not possible to accurately evaluate the degree of risk of heat stroke and the degree of decrease in the degree of risk due to breaks and the like.

The present invention has been made in view of the above-mentioned problems, and when determining the risk of heat stroke, it is possible to accurately evaluate the risk of heat stroke and the degree of decrease in the risk due to a break or the like. It is an object of the present invention to provide a heat stroke risk calculation system, a heat stroke risk calculation program, and a computer-readable recording medium, which are possible.

The present invention constitutes the following heat stroke risk calculation system in order to solve the above-mentioned problems.

(1) A judgment value calculation unit that calculates the heat stroke judgment value of the user based on the measurement result measured by the wearable device worn by the user, and recovery of the heat stroke risk of the user. Regarding the degree, the subtraction value calculation unit that calculates the heat stroke subtraction value of the user based on the outside temperature around the user measured by the wearable device other than the biometric information of the user, and the determination value. A heat stroke risk calculation system including a calculation unit that calculates a subtraction determination value by subtracting the heat stroke subtraction value calculated by the subtraction value calculation unit from the heat stroke determination value calculated by the calculation unit.

(2) The determination value calculation unit calculates the heat stroke determination value every predetermined time based on the measurement result measured by the wearable device at predetermined time intervals, and the subtraction value calculation unit calculates the heat stroke determination value at predetermined time intervals. The heat stroke subtraction value is calculated for each predetermined time based on the outside temperature around the user measured at each predetermined time, and the calculation unit calculates the heat stroke subtraction value from the heat stroke determination value. The heat stroke risk calculation system according to (1), wherein the subtraction determination value is calculated every predetermined time by reducing.

(3) The heat stroke risk according to (1) or (2), wherein the heat stroke subtraction value is set so as to be the maximum in the detection result in which the heat radiation effect from the blood vessel of the user is the highest. Calculation system.

(4 ) The heat stroke risk calculation system according to (1) or (2), wherein the subtraction set value is set to be maximum when the outside air temperature is from 24 degrees Celsius to 26 degrees Celsius.

(5) The determination value calculation unit is a biological information setting value calculation unit that calculates a biological information setting value set for each measurement value of the user's biological information measured by the wearable device, and the wearable device. Calculates the sum of the biometric information set value and the environmental information set value with the environmental information set value calculation unit that calculates the environmental information set value set for each measured value of the environmental information around the user. The heat stroke risk calculation system according to any one of (1) to (4) , comprising a calculation unit for calculating the heat stroke determination value.

In addition, the present invention constitutes the following heat stroke risk calculation program in order to solve the above-mentioned problems.

(6) A heat stroke risk calculation program that causes a computer to function as the heat stroke risk calculation system according to any one of (1) to (5) .

Further, in order to solve the above-mentioned problems, the present invention constitutes the following computer-readable recording medium.

(7) A computer-readable recording medium on which the heat stroke risk calculation program according to (6) is recorded.

According to the heat stroke risk calculation system, the heat stroke risk calculation program, and the computer-readable recording medium according to the present invention, when determining the risk of heat stroke, the risk of heat stroke, breaks, etc. It is possible to accurately evaluate the degree of decrease in the degree of risk due to heat stroke.

The block diagram which shows the structure of the heat stroke risk calculation system which concerns on embodiment of this invention. A block diagram showing a specific configuration of the detection unit. A side view showing a specific example of a wearable device worn by a user. The flowchart which shows the procedure of the heat stroke risk calculation method. (A) is a diagram showing the relationship between the hot temperature and the biological information set value, (b) is a diagram showing the relationship between the WBGT and the environmental information set value, and (c) is a diagram showing the relationship between the outside air temperature and the subtraction set value. figure.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. It should be noted that the configurations with the same reference numerals in the respective figures indicate that they are the same configurations, and the description thereof will be omitted. FIG. 1 is a block diagram showing a configuration of a heat stroke risk calculation system 1 in which a helmet 6 which is an example of a wearable device according to the present embodiment is used, and FIG. 2 is a block diagram showing a specific configuration of a detection unit 2 and the like. FIG. 3 is a side view showing a helmet 6 worn by a user of the heat stroke risk calculation system 1 (hereinafter, simply referred to as “user”).

As shown in FIG. 1, the heat stroke risk calculation system 1 is composed of a monitoring unit U carried by a plurality of users. In the heat stroke risk calculation system 1, when the risk of heat stroke increases in any of the users, an abnormality (increased risk of heat stroke) occurs in the user of the heat stroke risk calculation system 1 and the risk of heat stroke increases. , It is configured to notify the user in which an abnormality has occurred.

FIG. 1 shows watching units U1 to U4 carried by four users, respectively. In the heat stroke risk calculation system 1, the number of users and watching units U may be a plurality, and the number is not limited. As shown in FIG. 3, the watching unit U in the present embodiment is configured as a helmet 6 which is an example of a wearable device worn by a user. Since each watching unit U has the same configuration and function, the watching unit U1 will be described below, and detailed description of the other watching units U2 to U4 will be omitted.

As shown in FIG. 1, the helmet 6 constituting the watching unit U1 includes a detection unit 2, a communication unit 4, a notification lamp 7 which is a first notification unit, and a specific lamp 8 which is a second notification unit. It is equipped with. The detection unit 2 and the communication unit 4 are housed inside a case C provided on the helmet 6 as shown in FIG. The detection unit 2 detects an abnormality of the user carrying the watching unit U1. The communication unit 4 transmits / receives an abnormality occurrence information indicating that an abnormality has occurred to any of the users via the communication line 10 or the like. The notification lamp 7, which is the first notification unit, notifies the user carrying the monitoring unit U1 that an abnormality has occurred in any of the users. The specific lamp 8 which is the second notification unit notifies the user carrying the watching unit U1 that an abnormality has occurred to the surroundings, and identifies the person who has the abnormality.

As shown in FIGS. 1 and 2, the detection unit 2 includes a biological information acquisition unit 21, an environmental information acquisition unit 22, and a monitoring control unit 3. The biological information acquisition unit 21 and the environmental information acquisition unit 22 are various sensors provided in the helmet 6 to detect the user's biological information and data related to the environmental information. The biological information acquisition unit 21 includes wiring 21a as shown in FIG. 3, and is connected to the detection unit 2 in the case C via the wiring 21a. The case C is removable from the helmet 6. The monitoring control unit 3 is a control unit in which an application program (heat stroke risk calculation program) is installed. The heat stroke risk calculation program is stored in a storage unit included in each component of the monitoring control unit 3. The heat stroke risk calculation program can be downloaded via the Internet or recorded on a computer-readable recording medium such as an optical disk, DVD, SD card, or USB flash memory.

As shown in FIG. 3, the biological information acquisition unit 21 and the environmental information acquisition unit 22 are provided on a helmet 6 worn on the head by a user such as a worker working at a factory, a construction site, or a forest. In addition, as a wearable device, other items different from the helmet 6 (for example, hats, wristbands, watches, glasses, necklaces, belts, bags, shoes, clothes, underwear, omelets, etc. worn by the user) are adopted. It is also possible to do. Under high temperature conditions and sweating a lot, it is preferable to use the helmet 6 as a wearable device, which has a problem of stuffiness.

In the present embodiment, as shown in FIG. 3, the biological information acquisition unit 21 is provided on the covering material 11 attached to the front portion of the headband 61 of the helmet 6. The biological information acquisition unit 21 acquires the biological information of the user at predetermined measurement times (step S01 in FIG. 4). The biological information acquisition unit 21 in the present embodiment is a skin surface temperature sensor that measures the user's forehead skin temperature, and acquires biological information regarding the user's forehead skin temperature every minute.

In addition, the biological information acquisition unit 21 acquires the temperature such as the skin contact temperature or the body temperature at a place other than the user's forehead, and various other things such as the user's pulse wave (heartbeat), brain wave, blood flow, etc. It is also possible to acquire information or use it as biometric information by combining these. However, because of the high correlation with the risk of developing heat stroke, it is preferable to acquire the user's body temperature as biological information using a temperature sensor. In addition, from the viewpoint of safety that there is no need to put an instrument inside the body for workers who perform dangerous work, and from the viewpoint of ease of measurement, a skin surface temperature sensor is attached to the wearable device worn by the user. It is more preferable to provide a configuration for acquiring the body temperature of the user. In addition, from the viewpoint of measuring biological information in the part close to the brain where the influence of heat stroke is the greatest, the user's body temperature is more configured to measure the skin contact temperature by providing a contact temperature sensor on the forehead part of the helmet 6. preferable. In addition, the measurement function of the biological information acquisition unit 21 may be used not only for measuring the risk of heat stroke of workers, but also for measuring the performance of athletes and for managing the physical condition of elderly people and infants in hospitals. It is possible. It is also possible to configure the biological information acquisition unit 21 by using an infrared sensor or an ultrasonic sensor.

In the present embodiment, the environmental information acquisition unit 22 is housed inside the case C provided in the helmet 6 and acquires environmental information around the user at predetermined measurement times (step S02 in FIG. 4). .. The environmental information acquisition unit 22 in the present embodiment is composed of a temperature sensor that acquires the outside air temperature every minute, a humidity sensor that acquires the outside humidity every minute, and the like.

The environmental information acquisition unit 22 obtains an approximate value (hereinafter, simply referred to as “WBGT”) of the WBGT index (wet-bulb globe temperature) known as a heat index from the acquired outside air temperature and outside humidity. Calculated every minute. The WBGT index is an index of the magnitude of heat stress that the human body receives in consideration of temperature, humidity, wind speed, and radiant heat. If this value is large, it is desirable to stop work or sports. It is said that. In addition to the outside air temperature and outside humidity, the environmental information acquisition unit 22 acquires solar radiation intensity, weather, illuminance, etc., and acquires various information such as time and position information, or by combining these, the environment. It can also be used as information. However, from the viewpoint of ease of measurement, it is preferable to calculate the environmental information based on the temperature and humidity around the user.

As shown in FIG. 2, the monitoring control unit 3 includes a determination value calculation unit 31, a subtraction value calculation unit 32, a calculation unit 33, and a determination unit 34, and each unit includes a storage means (memory or the like) and an operation (not shown). A means (CPU or the like) is provided. Hereinafter, each part will be specifically described.

As shown in FIG. 2, the determination value calculation unit 31 includes a biological information setting value calculation unit 31a, an environment information setting value calculation unit 31b, and a calculation unit 31c.

The biological information setting value calculation unit 31a calculates the biological information setting value set for each measurement value of the user's biological information measured by the biological information acquisition unit 21 (step S03 in FIG. 4). In detail, as shown in FIG. 5A, the storage unit of the determination value calculation unit 31 corresponds to the biological information data (user's forehead skin temperature) acquired every minute by the biological information acquisition unit 21. The preset biological information setting value is stored. Then, the biological information set value is calculated every minute based on the measured value of the user's forehead skin temperature measured by the biological information acquisition unit 21.

The environmental information setting value calculation unit 31b calculates the environmental information setting value set for each measurement value of the environmental information around the user measured by the environmental information acquisition unit 22 (step S04 in FIG. 4). In detail, as shown in FIG. 5B, the storage unit of the determination value calculation unit 31 stores the environment information setting values preset in correspondence with the WBGT acquired by the environment information acquisition unit 22 every minute. Has been done. Then, the environmental information setting value is calculated every minute based on the measured value of the WBGT measured by the environmental information acquisition unit 22.

The calculation unit 31c calculates a heat stroke determination value, which is a value obtained by calculating the sum of the biological information set value and the environmental information set value, every minute (step S05 in FIG. 4). In this way, the determination value calculation unit 31 determines the heat stroke determination value of the user based on the measurement results measured by the biological information acquisition unit 21 and the environmental information acquisition unit 22 of the helmet 6 worn by the user. It calculates.

The subtraction value calculation unit 32 calculates the heat stroke subtraction value of the user based on the measurement result measured by the environmental information acquisition unit 22 with respect to the recovery degree of the heat stroke risk of the user (step S06 in FIG. 4). .. In detail, as shown in FIG. 5 (c), the storage unit of the subtraction value calculation unit 32 stores the subtraction setting value preset in accordance with the outside air temperature acquired by the environmental information acquisition unit 22 every minute. Has been done. Then, the subtraction set value is calculated every minute based on the measured value of the outside air temperature measured by the environmental information acquisition unit 22. Then, the subtraction value calculation unit 32 calculates the subtraction set value as the heat stroke subtraction value.

In the human body, at an outside air temperature higher than 26 degrees Celsius, the effect of heat dissipation from blood vessels decreases. Further, when the outside air temperature is less than 24 degrees Celsius, the vasoconstriction of the human body becomes remarkable, and the heat dissipation effect from the blood vessels also decreases. That is, when the outside air temperature is from 24 degrees Celsius to 26 degrees Celsius, the heat dissipation effect from the blood vessels of the human body is the highest. Therefore, in the present embodiment, as shown in FIG. 5C, the subtraction setting value is set to be maximum when the outside air temperature is from 24 degrees Celsius to 26 degrees Celsius.

As described above, the subtraction setting value used in the calculation of the heat stroke subtraction value in the subtraction value calculation unit 32 is based on the detection result of detecting external information (outside air temperature in this embodiment) other than the biometric information of the user. It is calculated. This is because the recovery action that tries to keep the body temperature constant in the human body works, so when the subtraction set value is calculated based on the biological information of the user, the degree of recovery due to breaks etc. can be objectively determined. Because it is difficult.

As described above, in the subtraction value calculation unit 32, if it is external information other than the biometric information of the user, the subtraction set value can be calculated based on the measured value other than the outside air temperature. For example, the subtraction setting value may be calculated based on at least one of humidity, wind speed, hot or cold air of the external environment, radiant heat from a heat source such as the sun or high temperature equipment, and the amount of hydration of the user. can. As in the present embodiment, the environmental information acquisition unit 22 which is a measuring instrument of the WBGT measuring instrument can be utilized, and the measurement point is not limited, and from the viewpoint of being a direct factor of the increase in body temperature, based on the outside air temperature. It is preferable to calculate the subtraction set value.

The calculation unit 33 calculates the subtraction determination value every minute by subtracting the heat stroke subtraction value calculated by the subtraction value calculation unit 32 from the heat stroke determination value calculated by the determination value calculation unit 31 (in FIG. 4). Step S07).

The determination unit 34 determines whether or not the subtraction determination value calculated by the calculation unit 33 exceeds a preset threshold value (step S08 in FIG. 4). Specifically, if the subtraction determination value is less than the threshold value, it is determined to be "safe", and if the subtraction determination value is greater than or equal to the threshold value, it is determined to be "dangerous". When the determination unit 34 determines that it is "dangerous", the detection unit 2 transmits the abnormality occurrence information indicating that an abnormality has occurred to the user to the communication unit 4.

As described above, according to the heat stroke risk calculation system 1 according to the present embodiment, the heat stroke subtraction value regarding the recovery degree of the heat stroke risk of the user is calculated, and the heat stroke subtraction value is subtracted from the heat stroke determination value. Based on the subtraction judgment value, the risk of heat stroke of the user is judged. This makes it possible to reduce the subtraction determination value when the heat stroke risk is less than a predetermined level and continues for a predetermined time, for example, when the user takes a break. That is, since the influence of breaks and the like can be appropriately reflected in the determination of the risk of heat stroke, the risk of heat stroke and the degree of decrease in the risk due to breaks when determining the risk of heat stroke. Can be evaluated accurately.

In addition, the calculation unit 31c integrates the sum of the biological information set value and the environmental information set value, and the cumulative value obtained by totaling all the sums of the past biological information set value and the environmental information set value is the heat stroke determination value. It can also be. Further, the subtraction value calculation unit 32 can also use the cumulative value obtained by totaling all the past subtraction setting values as the heat stroke subtraction value by integrating the subtraction setting values. Then, the calculation unit 33 calculates the subtraction determination value by subtracting the heat stroke subtraction value integrated by the subtraction value calculation unit 32 from the heat stroke determination value integrated by the determination value calculation unit 31. This makes it possible to evaluate the effect of lowering the risk of heat stroke not only at the present time but also retroactively. That is, when determining the risk of heat stroke, it is possible to more accurately evaluate the cumulative risk of heat stroke and the degree of decrease in the risk due to a break or the like.

As shown in FIG. 1, the communication unit 4 in the monitoring unit U has a bidirectional communication function for exchanging data with the communication unit 4 in another monitoring unit U via the communication line 10. In the heat stroke risk calculation system 1, one-to-many wide-range wireless communication is adopted for communication between the communication units 4. Specifically, Bluetooth (registered trademark) is adopted as a communication method between the communication units 4. As a communication method between the communication units 4, Wi-Fi (registered trademark), wireless LAN, ZigBee (registered trademark), NFC and the like can also be adopted. As a communication method between the communication units 4, Bluetooth is preferable from the viewpoint that 400 m communication is possible and broadcast communication is possible.

Further, the communication unit 4 has a transmission function for transmitting the abnormality occurrence information to the notification lamp 7 and the specific lamp 8. One-to-one short-range wireless communication is adopted for communication between the communication unit 4 and the notification lamp 7 and the specific lamp 8. Specifically, as a communication method between the communication unit 4, the notification lamp 7, and the specific lamp 8, Bluetooth (registered trademark) is adopted as in the communication between the communication units 4. Communication between the communication unit 4 and the notification lamp 7 and the specific lamp 8 is possible for 30 m, and ANT can be adopted from the viewpoint of power saving within a range of several m. In the present embodiment, the communication between the communication unit 4 and the notification lamp 7 and the specific lamp 8 is made wireless to prevent the wiring from getting in the way when the monitoring unit U is used.

The notification lamp 7 which is the first notification unit and the specific lamp 8 which is the second notification unit are light emitting members using LEDs. In addition to the light emitting member, the first notification unit and the second notification unit include a vocalizing member such as a buzzer, an oscillating member such as a vibrator, a heat generating member, a display member such as a display, an odor generating member, and the like. Or it can be adopted in combination. Further, the notification method may be different between the first notification unit and the second notification unit. In the present embodiment, as the first notification unit and the second notification unit, a notification lamp 7 and a specific lamp 8 which are light emitting members that can be recognized even in a work site where there is a lot of sound and vibration are adopted.

As shown in FIG. 3, the notification lamp 7 is fixed to a place that can be visually recognized by the user wearing the helmet 6 (in the present embodiment, the lower surface portion of the eaves in the helmet 6). Further, the specific lamp 8 is fixed to a portion of the helmet 6 that is easily visible to other users (in the present embodiment, the rear portion of the helmet 6).

The notification lamp 7 can be fixed to clothes or the like other than the helmet 6 as long as it can be visually recognized by the user. Further, the specific lamp 8 can be fixed to clothes or the like other than the helmet 6 as long as it is easily visible to other users. The notification lamp 7 and the specific lamp 8 can be fixed to clothes or the like other than the helmet 6. The notification lamp 7 and the specific lamp 8 may be fixed by any means such as a clip, a screw, a hook-and-loop fastener, a magnet, a double-sided tape, and a snap pin, but it is preferable to use a clip that is easy to put on and take off.

The size of the notification lamp 7 and the specific lamp 8 is small (20 mm to 50 mm × 20 mm to 60 mm), which is suitable because it is excellent in portability and wearability. Further, the shape of the notification lamp 7 and the specific lamp 8 may be any shape such as a round shape and a polygonal shape, and the round shape is particularly preferable because of light distribution, waterproofness, and minimization.

In this embodiment, when the determination unit 34 determines that it is "safe", the determination unit 34 determines that no abnormality (increased risk of heat stroke) has occurred in the user and does not transmit the abnormality occurrence information. .. In this case, the notification lamp 7 and the specific lamp 8 do not emit light in any of the monitoring units U1 to U4.

On the other hand, when the determination unit 34 determines that it is "dangerous", the determination unit 34 determines that an abnormality (increased risk of heat stroke) has occurred in the user, and transmits the abnormality occurrence information to the communication unit 4. The communication unit 4 that has received the abnormality occurrence information from the detection unit 2 in the same watching unit U sends the abnormality occurrence information to the notification lamp 7 and the specific lamp 8 in the watching unit U1 and the communication unit 4 in the other watching units U2 to U4. Send.

The notification lamp 7 and the specific lamp 8 that have received the abnormality occurrence information in the monitoring unit U1 notify that the risk of heat stroke of the user has increased by emitting light. The user of the watching unit U1 recognizes that the risk of his / her heat stroke is high by visually recognizing that the notification lamp 7 and the specific lamp 8 of the watching unit U1 carried by him / her are emitting light.

In the other watching units U2 to U4, the communication unit 4 that has received the abnormality occurrence information from the communication unit 4 in the watching unit U1 transmits the abnormality occurrence information to the notification lamp 7. That is, when the communication unit 4 receives the abnormality occurrence information from the communication unit 4 in the other monitoring unit U via the communication line 10, the communication unit 4 transmits the abnormality occurrence information only to the notification lamp 7. Then, the notification lamps 7 in the other monitoring units U2 to U4 emit light to notify that the risk of heat stroke of any user has increased.

Users of the watching units U2 to U4 can see that their own notification lamp 7 is emitting light and that their specific lamp 8 is not emitting light, so that users other than themselves suffer from heat stroke. Recognize that the danger has increased. Then, the user of the watching units U2 to U4 identifies a person who has a high risk of heat stroke by visually recognizing that the specific lamp 8 of the user of the watching unit U1 is emitting light, and the user concerned. Recognize that the risk of heat stroke has increased.

As described above, according to the heat stroke risk calculation system 1 according to the present embodiment, those around the person at risk of heat stroke (user of watching unit U1) (user of watching units U2 to U4). On the other hand, it is configured to notify the existence of a person who is at risk of heat stroke and the place where the person is. In other words, in the heat stroke risk calculation system 1, the communication units of the other monitoring units U2 to U4 that are in a position where they can communicate with the communication unit 4 in the monitoring unit U1 (near the person at risk of heat stroke). It is configured to transmit the abnormality occurrence information to 4. This makes it possible to encourage rescue by those around us and to carry out rescue activities promptly and appropriately when the risk of heat stroke increases.

1 Heat stroke risk calculation system 2 Detection unit
3 Watching control unit 4 Communication unit
6 Helmet (wearable device)
7 Notification lamp 8 Specific lamp
10 Communication line 11 Covering material
21 Biometric information acquisition unit 21a Wiring
22 Environmental information acquisition unit 31 Judgment value calculation unit
31a Biological information setting value calculation unit 31b Environmental information setting value calculation unit
31c Calculation unit 32 Subtraction value calculation unit
33 Calculation unit 34 Judgment unit
61 Headband C Case
U watching unit

Claims (7)

A judgment value calculation unit that calculates the heat stroke judgment value of the user based on the measurement result measured by the wearable device worn by the user.
Regarding the degree of recovery of the heat stroke risk of the user, the heat stroke subtraction value of the user is calculated based on the outside air temperature around the user measured by the wearable device other than the biometric information of the user. , Subtraction value calculation unit,
Heat stroke risk calculation including a calculation unit that calculates a subtraction determination value by subtracting the heat stroke subtraction value calculated by the subtraction value calculation unit from the heat stroke determination value calculated by the determination value calculation unit. system. The determination value calculation unit calculates the heat stroke determination value at predetermined time intervals based on the measurement results measured by the wearable device at predetermined time intervals.
The subtraction value calculation unit calculates the heat stroke subtraction value every predetermined time based on the outside air temperature around the user measured by the wearable device at the predetermined time.
The heat stroke risk calculation system according to claim 1, wherein the calculation unit calculates the subtraction determination value every predetermined time by subtracting the heat stroke subtraction value from the heat stroke determination value. The heat stroke risk calculation system according to claim 1 or 2, wherein the heat stroke subtraction value is set so as to be the maximum in the detection result in which the heat radiation effect from the blood vessel of the user is the highest. The heat stroke risk calculation system according to claim 1 or 2 , wherein the heat stroke subtraction value is set to be maximum when the outside air temperature is from 24 degrees Celsius to 26 degrees Celsius. The determination value calculation unit
A biometric information setting value calculation unit that calculates a biometric information setting value set for each measurement value of the user's biometric information measured by the wearable device, and a biometric information setting value calculation unit.
An environmental information setting value calculation unit that calculates an environmental information setting value set for each measurement value of the environmental information around the user measured by the wearable device.
The item according to any one of claims 1 to 4, further comprising a calculation unit that calculates the heat stroke determination value by calculating the sum of the biological information setting value and the environmental information setting value. Heat stroke risk calculation system. A heat stroke risk calculation program that causes a computer to function as the heat stroke risk calculation system according to any one of claims 1 to 5. A computer-readable recording medium on which the heat stroke risk calculation program according to claim 6 is recorded.

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