JP6857016B2 - Ventilation system - Google Patents

Description

The present invention relates to a ventilation system, in particular to a ventilation system comprising control means for controlling the ventilation means to ventilate the room.

Conventionally, there is known a ventilation system including a control means for controlling the ventilation means so as to ventilate the room based on the air condition in the room (see, for example, Patent Document 1).

The above Patent Document 1 is based on a blower (ventilation means) that communicates indoors and outdoors, a dew condensation detection circuit (detection unit) whose conductive characteristics change in response to humidity, and a detection signal from the dew condensation detection circuit. , A dew condensation determining means for determining that the humidity environment is high humidity, and a switching means and a driving circuit for starting the operation of the blower when the dew condensation determining means determines that the humidity environment is high humidity. Ventilation fans are disclosed. As a result, when the humidity environment is high humidity, the high humidity air in the room is discharged to the outside by the blower, so that the humidity in the room becomes low and the occurrence of dew condensation in the room is suppressed.

Japanese Unexamined Patent Publication No. 10-1262614

Here, when the indoor temperature is sufficiently high, even if the humidity environment is high, the amount of water that can be retained in the indoor air before dew condensation becomes sufficiently large, so that dew condensation occurs. Hateful. However, in the ventilation fan described in Patent Document 1, since the driving of the blower is started when the humidity environment is high humidity, the driving of the blower is started even when dew condensation is unlikely to occur. It is considered that there is an inconvenience. That is, the ventilation fan described in Patent Document 1 can suppress the occurrence of dew condensation, but has a problem that unnecessary ventilation means is driven.

The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to suppress the occurrence of dew condensation and suppress the driving of unnecessary ventilation means. To provide a ventilation system.

The ventilation system according to one aspect of the present invention includes a detection unit that detects an indoor air condition, a ventilation means that ventilates the indoor air, and a dew condensation determination mode for a predetermined time when the indoor air condition satisfies the first condition. and a configured control means to switch to the control means, during the execution of the condensation determination mode, indoor air state Unlike the first condition, and a high condensation occurrence likely than the first condition It is configured to control the ventilation means so as to start ventilation in the room when the second condition is satisfied.

In the ventilation system according to one aspect of the present invention, the control means is switched to the dew condensation determination mode when the indoor air condition satisfies the first condition, and the indoor air condition is the first while the dew condensation determination mode is being executed. When the second condition different from the condition is satisfied, the ventilation means is controlled so as to ventilate the room. Thereby, for example, the first condition can be set to a condition capable of determining whether or not dew condensation can occur, and the second condition can be determined whether or not dew condensation is actually likely to occur. By setting the condition, it is determined in advance whether or not dew condensation is likely to actually occur in the second condition in a state where it is determined in advance that dew condensation can occur to some extent in the first condition. .. As a result, it is determined that there is a high possibility that dew condensation will occur in a state where dew condensation is unlikely to occur, and it is possible to suppress the start of ventilation in the room. Therefore, it is possible to suppress unnecessary driving of the ventilation means while suppressing the occurrence of dew condensation.

In the ventilation system according to the above one aspect, the second condition is preferably composed of a condition that does not satisfy the first condition. With this configuration, for example, the first condition is set to a condition in which dew condensation is unlikely to occur at present, but dew condensation can easily occur if the situation changes, and the second condition is set. The condition can be set to a condition (a condition different from the first condition) in which it can be determined whether or not the situation has changed from the first condition to a state in which dew condensation is likely to occur easily. Thereby, under the first condition and the second condition, it is possible to further narrow the range in which it can be determined that it is possible to suppress the driving of unnecessary ventilation means while suppressing the occurrence of dew condensation. As a result, it is possible to more reliably suppress the generation of dew condensation and suppress unnecessary driving of the ventilation means.

In the ventilation system according to the above aspect, preferably, the first condition and the second condition include at least one of an absolute humidity condition relating to absolute humidity and a relative humidity condition relating to relative humidity. With this configuration, it is possible to suppress the occurrence of dew condensation based on at least one of the absolute humidity condition and the relative humidity condition, which makes it easy to determine whether or not dew condensation can occur and the actual possibility of dew condensation. The ventilation means can be easily driven so as to suppress the drive of the necessary ventilation means.

In this case, preferably, the first condition includes an absolute humidity condition and the second condition includes a relative humidity condition. With this configuration, for example, by setting the absolute humidity as the indoor air state to be equal to or less than the predetermined absolute humidity as the first condition, the indoor air state becomes a low temperature state (in the air). The first condition can be set so that the first condition can be easily satisfied when the amount of water that can be retained (saturated water vapor amount) is small). Thereby, the first condition can be set to a condition capable of determining whether or not dew condensation can occur. Further, in a state where the dew condensation determination mode is being executed and the room is at a low temperature, for example, by setting the relative humidity as the air state in the room to be equal to or higher than a predetermined relative humidity as the second condition, the relative humidity condition is set. The second condition is such that the second condition can be easily satisfied when the air condition in the room is a state in which the amount of moisture that can be retained in the air is insufficient and the moisture that cannot be retained in the air is likely to condense. Can be set. Thereby, the second condition can be set to a condition capable of determining whether or not there is a high possibility that dew condensation actually occurs. As described above, since the first condition includes the absolute humidity condition and the second condition includes the relative humidity condition, it is possible to easily suppress the occurrence of dew condensation and suppress the driving of unnecessary ventilation means. ..

In a configuration in which the second condition includes a relative humidity condition, the second condition preferably includes a relative humidity condition and an absolute humidity condition. With this configuration, the second condition includes not only the relative humidity condition but also the absolute humidity condition related to the absolute humidity as in the first condition, so that the first condition and the second condition are based on the absolute humidity. Can be associated. As a result, the first condition and the second condition can be clearly set based on the absolute humidity, so that the occurrence of dew condensation can be more reliably and easily suppressed based on the first condition and the second condition. At the same time, it is possible to suppress unnecessary driving of the ventilation means.

In the ventilation system according to the above one aspect, preferably, the second condition includes a plurality of different conditions, and the control means is one of a plurality of different conditions in the room air condition during the execution of the dew condensation determination mode. It is configured to control the ventilation means to start ventilation in the room when the above conditions are met. Here, dew condensation occurs not only when the air condition in the room where the possibility of dew condensation is very high is reached, but also when the air condition in the room where the possibility of dew condensation continues to some extent continues. Is likely to occur. That is, there may be a plurality of conditions as conditions in which dew condensation is likely to occur. Therefore, in the present invention, the occurrence of dew condensation can be more reliably suppressed by setting the second condition so as to include a plurality of conditions in which dew condensation may actually occur.

In the ventilation system according to the above one aspect, preferably, the control means is configured to continue to execute the dew condensation determination mode for the first period after the air condition in the room finally satisfies the first condition. That is, if the air condition in the room newly satisfies the first condition during the execution of the dew condensation determination mode, the execution of the dew condensation determination mode is extended for the first period from that point. With this configuration, for example, by satisfying the first condition, it is determined that the environment is prone to dew condensation in the room such as in winter, and after executing the dew condensation judgment mode, the humidity and temperature in the room rise. Even if the first condition is not satisfied, if the first condition is satisfied again within the first period, it can be determined that the winter season continues. As a result, the dew condensation determination mode can be continuously executed for a long period of time in an environment where dew condensation is likely to occur in the room such as in winter.

In the ventilation system according to the above one aspect, preferably, after the end of ventilation in the room, the control means performs a second period when the air condition in the room satisfies a third condition different from the first condition and the second condition. It is configured not to execute the dew condensation judgment mode. With this configuration, for example, by setting the third condition so that it can be determined that the room ventilation by the ventilation means could not sufficiently ventilate, if the third condition is satisfied, the third condition is continuously satisfied. It is possible to prevent the ventilation means from being continuously driven.

In the ventilation system according to the above one aspect, preferably, the heating means which is arranged indoors and has a heat source is further provided, and the control means controls the ventilation means based on the driving state of the heating means while the dew condensation determination mode is being executed. It is configured to take precedence over the control of ventilation means. With this configuration, when the heating means is driven, the ventilation means is driven to release the heat of the heating means from the room to the outside regardless of the control of the ventilation means during the execution of the dew condensation determination mode. , New air can be taken in from the outside to the inside. Thereby, heating in the heating means can be safely performed.

In the ventilation system according to the above one aspect, preferably, a detector including a detection unit and a control means and provided separately from the ventilation means is further provided, and the control means of the detector is in the execution of the dew condensation determination mode. When the air condition in the room satisfies the second condition, the detector communicates with the ventilation means to control the ventilation means so as to start the ventilation in the room. With this configuration, unlike the case where the detection unit and the control means are arranged in one device having the ventilation means, the detection unit can be arranged separately at a position away from the ventilation means, so that the inside of the room can be arranged. The detection unit can be arranged at a position where the air condition can be appropriately determined. Further, by providing the detector and the control means together in the detector, the air state in the room detected by the detection unit can be transmitted to the control means without communication to the outside.

According to the present invention, as described above, it is possible to suppress unnecessary driving of the ventilation means while suppressing the occurrence of dew condensation.

It is a schematic diagram of the ventilation system by one Embodiment of this invention. It is a block diagram of the ventilation system by one Embodiment of this invention. It is a control flow of the ventilation system according to one Embodiment of this invention. It is a control flow of the ventilation system according to one Embodiment of this invention. It is a graph which showed the result of the ventilation experiment performed in order to confirm the effect of this invention.

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

(Ventilation system configuration)
The overall configuration of the ventilation system 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The ventilation system 1 shown in FIG. 1 includes a detector 2. The ventilation system 1 includes a cooker 3. The ventilation system 1 includes a ventilation device 4. The detector 2, the cooker 3, and the ventilation device 4 are arranged in the room 500. The detector 2 is configured to detect the state of air in the room 500. Specifically, the detector 2 is a gas alarm. The cooker 3 is configured to cook by the heat generated from the heat source. The ventilation device 4 is configured to ventilate the air in the room 500. The cooker 3 is an example of the "heating means" in the claims.

(Configuration of detection device)
As shown in FIG. 2, the detector 2 includes various sensors 21. The detector 2 includes a display unit 22. The detector 2 includes a voice speaker 23. The detector 2 includes a communication unit 24. The detector 2 includes a microcomputer 25. The detector 2 includes an operation unit 26. The detector 2 includes a control means 27. The detector 2 includes a storage means 28.

The various sensors 21 include a smoke sensor 211 that detects smoke, a gas sensor 212 that detects flammable gas, a CO (carbon monoxide) sensor 213 that detects CO gas, and an air quality sensor 214 that detects the air quality of the indoor 500. And include.

The various sensors 21 further include a temperature sensor 215 that detects the temperature of the room 500 and a humidity sensor 216 that detects the humidity of the room 500. The temperature sensor 215 is configured to detect the dry-bulb temperature (air temperature) of the room 500. The humidity sensor 216 is configured to detect the relative humidity of the room 500. The temperature sensor 215 and the humidity sensor 216 are examples of the "detection unit" in the claims.

The display unit 22 includes a plurality of light emitting units (for example, LEDs). The display unit 22 includes a light emitting unit 221 that notifies the detection state by the smoke sensor 211. The display unit 22 includes a light emitting unit 222 that notifies the detection state by the gas sensor 212. The display unit 22 includes a light emitting unit 223 that notifies the detection state by the CO sensor 213. The display unit 22 includes a light emitting unit 224 that notifies the detection state by the air quality sensor 214. Further, the display unit 22 includes a light emitting unit 225 that notifies the state of the power supply of the detector 2.

The voice speaker 23 is provided to notify the user of the state (warning, etc.) of the detector 2 by voice.

The communication unit 24 is configured to be able to communicate with the communication unit 32 described later of the cooker 3. The communication unit 24 is configured to be able to communicate with the communication unit 42 described later of the ventilation device 4. By using the communication unit 24, the detector 2 can communicate with each of the cooker 3 and the ventilation device 4. Further, the communication unit 24 can use communication modules of various communication standards. The communication unit 24 can adopt, for example, a Bluetooth (registered trademark) communication module.

The microcomputer 25 is configured to control the communication unit 24. The microcomputer 25 is a control unit composed of a CPU that operates according to a predetermined program.

The operation unit 26 is provided so that the user can perform various input operations on the detector 2. The operation unit 26 is composed of, for example, a switch.

The control means 27 is a control unit composed of a CPU that operates according to a predetermined program. The control means 27 is mainly configured to perform various controls of the detector 2. Further, the control means 27 is configured to be operable in conjunction with at least one of the control means 36 and 46. Details of the control means 27 will be described later.

The storage means 28 stores an absolute humidity acquisition map for acquiring absolute humidity based on air temperature and relative humidity, and a WBGT acquisition map for acquiring WBGT (Wet Bull Globe Temperature). WBGT is a heat index standardized in JIS Z8504. ^{In the absolute humidity acquisition map, the absolute humidity (g / m 3} ) in the case of a predetermined temperature and relative humidity is described so that the absolute humidity can be acquired based on the air temperature and the relative humidity. In the WBGT acquisition map, the WBGT (° C.) in the case of a predetermined temperature and relative humidity is described so that the WBGT can be acquired based on the temperature and the relative humidity.

(Cooker configuration)
The cooker 3 is, for example, a gas stove. The cooker 3 is not limited to a gas stove, but is a concept indicating a cooker for cooking by heat, such as a gas-type rice cooker or an electromagnetic cooker.

The cooker 3 includes a heating unit 31. The cooker 3 includes a communication unit 32. The cooker 3 includes a communication unit 33 different from the communication unit 32. The cooker 3 includes an operation unit 34. The cooker 3 includes a display unit 35. The cooker 3 includes a control means 36. The cooker 3 includes a light emitting unit 37 (see FIG. 1).

The heating unit 31 includes a right stove 311 and a rear stove 312, a left stove 313, and a grill 314. The right stove 311 and the rear stove 312, the left stove 313, and the grill 314 each function as a heat source, and are configured to generate heat by burning a flammable gas.

The communication unit 32 is a communication unit having the same standard or a standard compatible with the communication unit 24. By using the communication unit 32, the cooker 3 can communicate with the detector 2.

The communication unit 33 is a communication unit having a standard different from that of the communication unit 32. By using the communication unit 33, the cooker 3 can communicate with the ventilation device 4.

The operation unit 34 is an operation unit for the user to perform various operations on the cooker 3. The operation unit 34 is composed of, for example, a switch.

The display unit 35 is configured to display various information regarding the cooker 3.

The control means 36 is a control unit composed of a CPU that operates according to a predetermined program. The control means 36 is mainly configured to perform various controls of the cooker 3.

The light emitting unit (LED) 37 shown in FIG. 1 is configured to notify the user of the power on / off state of the cooker 3.

(Ventilation equipment configuration)
The ventilation device 4 is a range hood for exhausting the air in the room 500 to the outside. The ventilation device 4 includes a fan unit 41. The ventilation device 4 includes a communication unit 42. The ventilation device 4 includes a communication unit 43. The ventilation device 4 includes an operation unit 44. The ventilation device 4 includes a display unit 45. The ventilation device 4 includes a control means 46. The ventilation device 4 is an example of "ventilation means" within the scope of claims.

The fan unit 41 is a fan that is rotationally driven to replace the air in the room 500. The fan unit 41 is configured so that the rotation speed is controlled by the control means 46. The fan unit 41 is configured to be rotationally driven in four stages (OFF, weak, medium and strong). “OFF” indicates a state in which the fan unit 41 is not rotationally driven (a state in which there is no air volume in the ventilation device 4). In "weak", "medium", and "strong", the rotation speed of the fan unit 41 increases in this order, and the air volume of the ventilation device 4 increases. As a result, the air volume of the ventilation device 4 can be set to any of four stages according to the magnitude of the air volume.

The communication unit 42 is a communication unit having the same standard or a standard compatible with the communication unit 24. By using the communication unit 42, the ventilation device 4 can communicate with the detector 2.

The communication unit 43 is a communication unit having a standard different from that of the communication unit 42. By using the communication unit 43, the ventilation device 4 can communicate with the cooker 3.

The operation unit 44 is an operation unit for the user to perform various operations on the ventilation device 4.

The display unit 45 is configured to display various information related to the ventilation device 4. The display unit 45 includes a plurality of light emitting units (for example, LEDs). The display unit 45 is configured to notify various information such as the power supply status and the air volume of the ventilation device 4.

The control means 46 is a control unit composed of a CPU that operates according to a predetermined program. The control means 46 is mainly configured to perform various controls of the ventilation device 4.

(Detailed control contents of the control means of the detection device)
Next, the detailed control contents of the control means 27 of the detector 2 will be described.

The control means 27 of the detector 2 is configured to control the ventilation device 4 so as to ventilate the room 500 when there is a risk of dew condensation occurring in the room 500. Specifically, the control means 27 controls the ventilation device 4 so as to ventilate the room 500 when the humidity (air state) of the room 500 satisfies the ventilation determination condition during the execution of the dew condensation determination mode. It is configured as follows. This will be described in more detail below.

(Condensation judgment mode)
The control means 27 is configured to switch to the dew condensation determination mode and continue to execute the dew condensation determination mode for 24 hours when the humidity (air state) of the room 500 satisfies the dew condensation determination condition. This dew condensation determination condition is a condition in which dew condensation is unlikely to occur at present, but dew condensation may occur depending on changes in the situation. The dew condensation determination condition is, for example, a condition that is easily satisfied in the winter season of Japan, where the humidity tends to be low. Here, by setting the dew condensation determination condition to an absolute humidity condition in which the amount of moisture in the air is relatively small, it is easy when the amount of moisture in the air increases (absolute humidity increases) or when the temperature decreases. The condition can be set so that the amount of water easily reaches the amount of saturated water vapor. In other words, the dew condensation judgment condition is also a condition where dew condensation can easily occur if the situation changes, the temperature difference between indoors and outdoors is relatively large as in winter in Japan mentioned above, and the amount of moisture in the air due to humidification etc. It is a condition in which dew condensation can occur in a variable situation. Specifically, the dew condensation determination condition is the first absolute humidity condition that the absolute humidity of the room 500 is 7 g / m ^{3 or less.}

The absolute humidity is stored in the storage means 28, the temperature detection result of the temperature sensor 215, the relative humidity detection result of the humidity sensor 216, and the relationship between the temperature and the relative humidity (% RH (relative humidity)). Based on the shown absolute humidity acquisition map, it is acquired by the control means 27 at predetermined time intervals. The dew condensation determination condition and 24 hours are examples of the "first condition" and the "first period" of the claims, respectively.

^{Further, when the humidity (air state) of the room 500 re-satisfies the dew condensation determination condition (absolute humidity is 7 g / m 3} or less) during the execution of the dew condensation determination mode, the control means 27 starts from the time when the dew condensation determination condition (absolute humidity is 7 g / m 3 or less) is satisfied again. , Is configured to continue running the condensation determination mode for 24 hours. As a result, the control means 27 is configured to continue executing the dew condensation determination mode for 24 hours after the humidity (air state) of the room 500 finally satisfies the dew condensation determination condition.

(Ventilation judgment)
Here, in the present embodiment, when the humidity (air state) of the room 500 satisfies either one of the first ventilation determination condition and the second ventilation determination condition during the execution of the dew condensation determination mode, the control means 27 In addition, it is configured to control the ventilation device 4 so as to start ventilation of the room 500. The first ventilation determination condition and the second ventilation determination condition are conditions in which dew condensation is likely to actually occur, and are conditions that are easily satisfied when the room 500 is humidified. Specifically, the first ventilation determination condition includes both ^{a second absolute humidity condition in which the absolute humidity of the room 500 is greater than 7 g / m 3} and a first relative humidity condition in which the relative humidity is 70% RH or more. It is a condition that meets both. The second ventilation determination condition was that the absolute humidity of the room 500 as an air condition was ^{greater than 7 g / m 3} and that the relative humidity was 65% RH or more for 5 minutes. 2 It is a condition that satisfies both the relative humidity condition. The first ventilation determination condition and the second ventilation determination condition are both examples of the "second condition" in the claims.

Further, the first ventilation determination condition and the second ventilation determination condition have a first relative humidity condition and a second relative humidity condition regarding relative humidity, respectively. Further, in the first ventilation determination condition and the second ventilation determination condition, the second absolute humidity condition regarding absolute humidity is the same, but the condition regarding relative humidity (first relative humidity condition and second relative humidity condition) is different. There is. The first relative humidity condition that the relative humidity is 70% RH or more is different from the second relative humidity condition, and it is not necessary that the relative humidity is continuously 70% RH or more. That is, if the relative humidity is 70% RH or more and the humidity of the room 500 is satisfied even once, it is determined that the first relative humidity condition is satisfied.

In addition, the first absolute humidity condition of the dew condensation judgment condition "absolute humidity is 7 g / m ³ or less" and the second absolute humidity condition of the first ventilation judgment condition and the second ventilation judgment condition "absolute humidity is 7 g / m 3 or less". "Greater than m ³ " is a contradictory condition. That is, the second absolute humidity condition does not satisfy the first absolute humidity condition. As a result, both the first ventilation determination condition and the second ventilation determination condition are composed of conditions that do not satisfy the dew condensation determination condition. Further, both the first ventilation determination condition and the second ventilation determination condition are cases where the situation changes from the dew condensation determination condition and the dew condensation is likely to occur easily.

Further, when the control means 27 controls the ventilation device 4, the fan unit 41 of the ventilation device 4 is started to be driven by wireless communication via the communication units 24 and 42, and the drive is continued for one hour. Send a signal like you do. As a result, the control means 46 of the ventilation device 4 starts driving the fan unit 41 and continuously drives the fan unit 41 for one hour based on the instruction of the control means 27. At this time, the fan unit 41 is driven with a "weak" air volume for 1 hour. The air volume of the fan unit 41 may be an air volume other than "weak" (that is, "medium" or "strong").

As a result, the high-humidity air in the room 500 is discharged to the outside, and the low-humidity air outside the room is introduced into the room 500, so that dew condensation is suppressed in the windows of the room 500 and the like. At this time, ventilation for suppressing dew condensation is performed only when the conditions for determining dew condensation are satisfied, for example, in the winter season. Therefore, ventilation for suppressing dew condensation is performed even in the summer season when dew condensation is unlikely to occur. It is suppressed from being done.

(Condensation judgment stopped)
Further, the control means 27 is configured to end the driving of the ventilation device 4 and end the dew condensation determination mode after the ventilation device 4 is continuously driven for one hour during the execution of the dew condensation determination mode. Has been done. Then, if the dew condensation determination stop condition is satisfied after the end of driving the ventilation device 4 (after the end of the dew condensation determination mode), the control means 27 does not execute the dew condensation determination mode for 3 hours after the end of driving the ventilation device 4. It is configured to be in a state (condensation judgment stopped state). Here, even after the driving of the ventilation device 4 is completed, if the dew condensation determination mode is executed when the humidity (moisture content) of the room 500 is not sufficiently lowered, the ventilation device 4 may be driven immediately. There is. That is, there is a possibility that the ventilation device 4 is continuously driven. Therefore, in order to prevent the ventilation device 4 from being continuously driven, the dew condensation determination stop condition is set to a condition at which the ventilation device 4 is likely to be continuously driven. Specifically, the dew condensation determination stop condition is a condition that the relative humidity is 63% RH or more. The dew condensation determination stop condition is an example of the "third condition" in the claims.

On the other hand, if the dew condensation determination stop condition is not satisfied after the drive of the ventilation device 4 is completed (after the dew condensation determination mode is completed), the humidity (moisture content) of the room 500 can be sufficiently reduced by driving the ventilation device 4. Therefore, the control means 27 is configured to determine whether or not to switch to the dew condensation determination mode as usual.

(Judgment of heat cage)
Further, the control means 27 is configured to perform a heat trap determination separately from the dew condensation determination mode. That is, the control means 27 is configured to control the ventilation device 4 so as to switch to the heat cage mode and start ventilation of the room 500 when the humidity (air state) of the room 500 satisfies the heat cage determination condition. Has been done. This heat cage determination condition is a condition in which there is a high possibility that heat stroke will occur in the room 500. Specifically, the heat cage determination condition is a condition that the WBGT in the room 500 is 29 ° C. or higher. That is, the heat cage determination condition is a condition that is satisfied when the room 500 is mainly in a high temperature and high humidity state.

As a result, the control means 27 controls the ventilation device 4 when there is a high possibility that heat stroke will occur. Specifically, the control means 27 transmits a signal for starting the driving of the fan unit 41 of the ventilation device 4 by wireless communication via the communication units 24 and 42. As a result, the control means 46 of the ventilation device 4 starts driving the fan unit 41 based on the instruction of the control means 27. At this time, the fan unit 41 is driven by a "medium" air volume. The air volume of the fan unit 41 may be an air volume other than "medium" (that is, "weak" or "strong").

As a result, the high temperature and high humidity air in the room 500 is discharged to the outside, and the low temperature and low humidity air outside the room is introduced into the room 500, so that the possibility of heat stroke in the room 500 is reduced.

(Heat cage mode stop judgment)
Further, the control means 27 releases the heat cage mode when the humidity (air state) of the room 500 satisfies the condition for canceling the heat cage mode while the ventilation device 4 is being driven in the heat cage mode. It is configured to control the ventilation device 4 to terminate the ventilation of 500. This heat cage mode release condition is a condition under which it can be determined that the possibility of heat stroke occurring in the room 500 is reduced. Specifically, the condition for releasing the heat cage mode is that the WBGT in the room 500 is less than 28 ° C. This makes it possible to prevent the ventilation device 4 from being unnecessarily driven in a state where the possibility of heat stroke is low.

Further, the control means 27 drives the ventilation device 4 in the heat cage mode, and if the heat cage mode is not eliminated, the ventilation device 4 is driven continuously for one hour. Is configured to control. The control means 27 is configured to end the driving of the ventilation device 4 and the heat cage mode when the ventilation device 4 is continuously driven for one hour.

After that, if the WBGT in the room 500 does not satisfy the heat cage mode release condition after the end of the drive of the ventilation device 4 (after the end of the heat cage mode), the control means 27 takes 3 hours from the end of the drive of the ventilation device 4. , It is configured not to run the heat cage mode. Here, even after the driving of the ventilation device 4 is completed, if the room 500 is in a state of high temperature and high humidity, the heat cage mode may be immediately executed and the ventilation device 4 may be driven. That is, there is a possibility that the ventilation device 4 is continuously driven. Therefore, in order to prevent the ventilation device 4 from being continuously driven, if the heat cage mode release condition is not satisfied, the heat cage mode is suppressed from being executed for a predetermined period (3 hours). ..

On the other hand, if the WBGT in the room 500 satisfies the condition for releasing the heat cage mode after the end of driving the ventilation device 4 (after the end of the heat cage mode), whether or not the control means 27 switches to the heat cage mode as usual. It is configured to make such a judgment.

Further, the driving of the ventilation device 4 based on the heat cage mode is performed when not only the indoor 500 but also the outdoor is hot as described above. On the other hand, the ventilation device 4 is driven while the dew condensation determination mode is being executed when the indoor temperature 500 can be low (even if the indoor 500 is to some extent high temperature, the outdoor temperature is low). That is, it is sufficiently unlikely that the drive of the ventilation device 4 based on the heat cage mode overlaps with the drive of the ventilation device 4 during the execution of the dew condensation determination mode.

(Control of ventilation equipment when driving the cooker)
Further, when the control means 36 of the cooker 3 notifies the drive of the heating unit 31 (driving state of the cooker 3) via the communication units 24 and 32, the control means 27 has a dew condensation determination mode and a heat cage mode. The ventilation device 4 is configured to control the air volume according to the driving state of the cooking device 3 based on the driving state of the cooking device 3 in preference to the control of the ventilation device 4 based on the above. When the number of stoves or the like being driven by the heating unit 31 of the cooking unit 3 is large, or when the heating power of the stove or the like of the heating unit 31 is large, the air volume of the ventilation device 4 is the driving state of the cooking device 3. It is set to "strong" or "medium", which is a large air volume, depending on the air volume.

(Control flow)
Next, the control flow of the ventilation system 1 according to the embodiment of the present invention will be described with reference to FIGS. 2 to 4. This control flow is executed by the control means 27 (see FIG. 2) of the detector 2.

In the control flow of the ventilation system 1, as shown in FIG. 3, in step S1, the control means 27 determines whether or not the cooker 3 is in the driving state. When the cooker 3 is in the driven state, in step S2, the control means 27 controls the ventilation device 4 so that the air volume corresponds to the driven state of the cooker 3. Then, the process returns to step S1. That is, when the cooker 3 is driven, the ventilation device 4 is always controlled so that the air volume corresponds to the driving state of the cooker 3.

In step S1, when the cooker 3 is not in the driving state, the control means 27 acquires the dry-bulb temperature (air temperature) and the relative humidity of the room 500 from the temperature sensor 215 and the humidity sensor 216, respectively, in step S3. Then, in step S4, the control means 27 acquires the absolute humidity of the room 500 based on the temperature and relative humidity of the room 500 and the absolute humidity acquisition map stored in the storage means 28.

In step S5, the control means 27 determines whether or not the dew condensation determination is stopped. If the control means 27 is not in the dew condensation determination stop state, in step S6, whether the humidity (air state) of the room 500 ^{satisfies the dew condensation determination condition (absolute humidity of the room 500 is 7 g / m 3} or less) by the control means 27. Whether or not it is judged. If the control means 27 is in the dew condensation determination stop state, or if the room 500 does not satisfy the dew condensation determination condition, the process proceeds to step S20 described later in FIG. When the dew condensation determination is not stopped and the room 500 satisfies the dew condensation determination condition, in step S7, the control means 27 switches to the dew condensation determination mode, and the time measurement by the timer of the dew condensation determination mode is started. ..

In step S8, similarly to step S1, the control means 27 determines whether or not the cooker 3 is in the driving state. If the cooker 3 is in the driving state, the process proceeds to step S2. When the cooker 3 is not in the driving state, the air temperature and relative humidity of the room 500 are acquired by the control means 27 in step S9. Then, in step S10, the absolute humidity of the room 500 is acquired by the control means 27.

In steps S11 and S12, the control means 27 has a humidity (air condition) in the room 500 that is greater than the first ventilation determination condition (absolute humidity in the room 500 is greater than 7 g / m3 and is relative) during execution of the dew condensation determination mode. Whether the humidity is 70% RH or more) or the second ventilation judgment condition (the absolute humidity of the room 500 is larger than 7 g / m3 and the relative humidity is 65% RH or more continues for 5 minutes) is satisfied. Is judged. When the room 500 satisfies either the first ventilation determination condition or the second ventilation determination condition, the control means 27 starts driving the ventilation device 4 in step S13. As a result, ventilation of the room 500 is started.

Then, in step S14, similarly to steps S1 and S8, the control means 27 determines whether or not the cooker 3 is in the driving state. If the cooker 3 is in the driving state, the process proceeds to step S2. That is, in step S8 and step S14, the drive of the ventilation device 4 based on the drive of the cooker 3 is prioritized during the execution of the dew condensation determination mode.

When the cooker 3 is not in the driving state, in step S15, the control means 27 determines whether or not one hour has passed since the driving of the ventilation device 4 was started. If one hour has not passed since the start of driving the ventilation device 4, the process returns to step S14. That is, the driving of the ventilation device 4 is continued. When one hour has passed from the start of driving the ventilation device 4, the control means 27 ends the driving of the ventilation device 4 and the dew condensation determination mode in step S16. After that, it is determined whether or not the dew condensation determination stop condition (relative humidity is 63% RH or more) is satisfied, and the process returns to step S1.

Further, in steps S11 and S12, when the room 500 does not satisfy the first ventilation determination condition and the second ventilation determination condition, respectively, in step S17, the humidity (air state) of the room 500 is dewed by the control means 27. Whether or not the judgment condition is satisfied is judged again. When the humidity in the room 500 satisfies the dew condensation determination condition, the timer of the dew condensation determination mode is reset by the control means 27 in step S18. Then, the process proceeds to step S19. If the humidity in the room 500 does not satisfy the dew condensation determination condition in step S17, the process proceeds to step S19.

In step S19, the control means 27 determines whether or not the timer in the dew condensation determination mode has exceeded 24 hours. If the timer does not exceed 24 hours, the process returns to step S8, and the execution of the dew condensation determination mode is continued. When the timer exceeds 24 hours, the control means 27 terminates the dew condensation determination mode. Then, the process returns to step S1.

If the dew condensation determination is stopped in step S5, or if the room 500 does not satisfy the dew condensation determination condition in step S6, in step S20 shown in FIG. 4, the control means 27 determines whether or not the heat cage determination is stopped. Is judged. When the control means 27 is in the heat cage determination stop state, the process returns to step S1 (see FIG. 3). When the control means 27 is not in the heat cage determination stop state, in step S21, the control means 27 of the room 500 based on the temperature and relative humidity of the room 500 and the WBGT acquisition map stored in the storage means 28. WBGT is acquired.

In step S22, the control means 27 determines whether or not the humidity (air state) of the room 500 satisfies the heat cage determination condition (WBGT of the room 500 is 29 ° C. or higher). If the room 500 does not satisfy the heat cage determination condition, the process returns to step S1. When the room 500 satisfies the heat cage determination condition, in step S23, the control means 27 switches to the heat cage mode and starts driving the ventilation device 4. In step S23, similarly to steps S1, S8 and S14, the control means 27 determines whether or not the cooker 3 is in the driving state. When the cooker 3 is in the driven state, in step S25, similarly to step S2, the control means 27 controls the ventilation device 4 so that the air volume corresponds to the driven state of the cooker 3. Then, the process returns to step S1. As a result, the drive of the ventilation device 4 based on the drive of the cooker 3 is prioritized during the execution of the heat cage mode.

When the cooker 3 is not in the driving state, the air temperature and relative humidity of the room 500 are acquired by the control means 27 in step S26. Then, in step S27, the WBGT of the room 500 is acquired by the control means 27.

In step S28, the control means 27 determines whether or not the humidity (air state) of the room 500 satisfies the heat cage mode release condition (WBGT of the room 500 is less than 28 ° C.) while the heat cage mode is being executed. .. If the room 500 does not satisfy the heat cage mode release condition, in step S29, the control means 27 determines whether or not one hour has passed from the start of the heat cage mode. If one hour has not passed since the start of the heat cage mode, the process returns to step S24. That is, the driving of the ventilation device 4 is continued. When the room 500 satisfies the heat cage mode release condition, or when one hour has passed from the start of the heat cage mode, in step S30, the control means 27 ends the driving of the ventilation device 4 and the heat cage mode is started. The mode is terminated. After that, it is determined whether or not the heat cage determination stop condition (heat cage mode release condition) is satisfied, and the process returns to step S1 (see FIG. 3).

(Effect of this embodiment)
In this embodiment, the following effects can be obtained.

In the present embodiment, as described above, the control means 27 is configured to switch to the dew condensation determination mode when the air condition in the room 500 satisfies the dew condensation determination condition. Then, the control means 27 is used to ventilate the room 500 when the air condition of the room 500 satisfies the first ventilation determination condition or the second ventilation determination condition different from the dew condensation determination condition during the execution of the dew condensation determination mode. It is configured to control the ventilation device 4. As a result, the dew condensation determination condition is set to a condition that can determine whether or not dew condensation can occur, and the first ventilation determination condition or the second ventilation determination condition is likely to actually cause dew condensation. By setting the condition so that it can be determined whether or not it is present, the dew condensation actually occurs in the first ventilation determination condition or the second ventilation determination condition in a state where it is determined in advance that dew condensation can occur to some extent in the dew condensation determination condition. It is judged whether or not it is likely to occur in. As a result, it is determined that there is a high possibility that dew condensation will occur in a state where dew condensation is unlikely to occur, and it is possible to prevent the ventilation of the room 500 from being started. Therefore, it is possible to suppress unnecessary driving of the ventilation device 4 while suppressing the occurrence of dew condensation.

Further, in the present embodiment, both the first ventilation determination condition and the second ventilation determination condition are configured by conditions that do not satisfy the dew condensation determination condition. As a result, the dew condensation determination condition is set to a condition in which dew condensation is unlikely to occur at present, but dew condensation can easily occur if the situation changes, and the first ventilation determination condition and the second dew condensation determination condition are set. It is possible to set the ventilation judgment condition to a condition (condition different from the dew condensation judgment condition) that can judge whether or not the situation has changed from the dew condensation judgment condition and the state where dew condensation is likely to occur easily. it can. As a result, it can be determined that it is possible to suppress unnecessary driving of the ventilation device 4 while suppressing the occurrence of dew condensation by the dew condensation determination condition and the first ventilation determination condition or the second ventilation determination condition. Can be narrowed down. Therefore, it is possible to more reliably suppress the unnecessary driving of the ventilation device 4 while suppressing the occurrence of dew condensation.

Further, in the present embodiment, the dew condensation determination condition, the first ventilation determination condition, and the second ventilation determination condition are configured by contradictory conditions. As a result, the first ventilation determination condition and the second ventilation determination condition can be reliably set in a state in which the situation has changed from the dew condensation determination condition, so that it is unnecessary while suppressing the occurrence of dew condensation more effectively. It is possible to suppress the driving of the ventilation device 4.

Further, in the present embodiment, the dew condensation determination condition includes the first absolute humidity condition relating to the absolute humidity. The first ventilation determination condition and the second ventilation determination condition include a second absolute humidity condition relating to absolute humidity and a relative humidity condition relating to relative humidity (first relative humidity condition and second relative humidity condition). As a result, the unnecessary ventilation device 4 is driven while suppressing the occurrence of dew condensation based on the absolute humidity condition and the relative humidity condition, which make it easy to determine whether or not dew condensation can occur and the actual possibility of dew condensation. The ventilation device 4 can be easily driven so as to suppress the above.

Further, in the present embodiment, the air condition of the room 500 is changed by setting the absolute humidity as the air condition of the room 500 to be equal to or less than a predetermined absolute humidity (7 g / m ³ ) as the dew condensation determination condition. The dew condensation determination condition can be set so that the dew condensation determination condition can be easily satisfied in a low temperature state (a state in which the amount of water that can be retained in the air (saturated water vapor amount) becomes small). As a result, the dew condensation determination condition can be set to a condition capable of determining whether or not dew condensation can occur.

Further, in the present embodiment, the relative humidity condition of the first ventilation determination condition is that the relative humidity of the room 500 as an air state is equal to or higher than a predetermined relative humidity (70% RH or higher). Further, it is set as the relative humidity condition of the second ventilation determination condition that the relative humidity as the air state of the room 500 is equal to or higher than a predetermined relative humidity (65% RH or higher). As a result, when the dew condensation determination mode is being executed and the room 500 is at a low temperature, the air state of the room 500 is in a state where there is no margin in the amount of water that can be held in the air, and the water that cannot be held in the air is condensed. When it is easy to do so, the first ventilation determination condition and the second ventilation determination condition can be set so that the first ventilation determination condition or the second ventilation determination condition can be easily satisfied. As a result, the first ventilation determination condition and the second ventilation determination condition can be set to conditions that can determine whether or not there is a high possibility that dew condensation actually occurs.

Further, in the present embodiment, the first ventilation determination condition and the second ventilation determination condition include not only the relative humidity condition but also the second absolute humidity condition relating to the absolute humidity as well as the dew condensation determination condition. Thereby, the dew condensation determination condition and the first ventilation determination condition and the second ventilation determination condition can be closely related based on the absolute humidity. As a result, based on the closely related dew condensation determination condition, the first ventilation determination condition, and the second ventilation determination condition, the unnecessary ventilation device 4 is driven while more reliably and easily suppressing the occurrence of dew condensation. Can be suppressed.

Further, in the present embodiment, the control means 27 is used in the room 500 when the air condition in the room 500 satisfies either one of the first relative humidity condition and the second relative humidity condition during the execution of the dew condensation determination mode. The ventilation device 4 is configured to be controlled so as to start the ventilation of the air. Thereby, the occurrence of dew condensation can be suppressed more reliably.

Further, in the present embodiment, the control means 27 is configured to continue executing the dew condensation determination mode for 24 hours after the air condition in the room 500 finally satisfies the dew condensation determination condition. That is, if the air condition of the room 500 newly satisfies the dew condensation determination condition during the execution of the dew condensation determination mode, the execution of the dew condensation determination mode is extended for 24 hours from that point. As a result, by satisfying the dew condensation determination condition, it is determined that the environment is prone to dew condensation in the indoor 500 such as in winter, and after the dew condensation determination mode is executed, the humidity and temperature of the indoor 500 rise and the dew condensation determination condition. Even if the above conditions are not satisfied, if the dew condensation determination condition is satisfied again within 24 hours, it can be determined that the winter season continues. As a result, the dew condensation determination mode can be continuously executed for a long period of time in an environment where dew condensation is likely to occur in the indoor 500 such as in winter.

Further, in the present embodiment, the control means 27 is configured to give priority to the control of the ventilation device 4 based on the driving state of the cooker 3 over the control of the ventilation device 4 during the execution of the dew condensation determination mode. As a result, when the cooker 3 is being driven, the heat of the cooker 3 is released from the room 500 to the outside by driving the ventilation device 4 regardless of the control of the ventilation device 4 during the execution of the dew condensation determination mode. At the same time, new air can be taken into the room 500 from the outside. Thereby, heating in the cooker 3 can be safely performed.

Further, in the present embodiment, the detector 2 including the temperature sensor 215, the humidity sensor 216, and the control means 27 is provided separately from the ventilation device 4. Then, when the control means 27 of the detector 2 is being executed in the dew condensation determination mode and the air condition in the room 500 satisfies the first ventilation determination condition or the second ventilation determination condition, the detector 2 is transferred to the ventilation device 4. By communicating with the ventilation device 4, the ventilation device 4 is configured to start ventilation of the room 500. As a result, unlike the case where the temperature sensor 215, the humidity sensor 216, and the control means 27 are arranged in one device having the ventilation device 4, the temperature sensor 215 and the humidity sensor 216 are separately located at positions away from the ventilation device 4. Since it can be arranged, the temperature sensor 215 and the humidity sensor 216 can be arranged at a position where the air condition of the room 500 can be appropriately determined. Further, by providing the temperature sensor 215, the humidity sensor 216, and the control means 27 together in the detector 2, the control means 27 controls the air state of the room 500 detected by the temperature sensor 215 and the humidity sensor 216 without external communication. Can be sent to.

Further, in the present embodiment, the ventilation system 1 ventilates the room 500 when the first ventilation determination condition or the second ventilation determination condition is satisfied during the execution of the dew condensation determination mode. Further, in the ventilation system 1, the room 500 is ventilated in the heat cage mode. As a result, it is possible to suppress the occurrence of dew condensation and the heat trapped state during the time when the ventilation device 4 is not driven based on the driving state of the cooker 3, so that the ventilation device 4 can be effectively used. can do.

[Example]
Next, a ventilation experiment conducted to confirm the effect of the present invention will be described.

In the ventilation experiment, the ventilation system 1 of the above embodiment was used. Here, the dew condensation determination condition of the control means 27 is the first absolute humidity condition that the absolute humidity ^{of the room 500 is 7 g / m 3 or less.} Further, the first ventilation determination condition of the control means 27 is a ^{second absolute humidity condition that the absolute humidity of the room 500 is greater than 7 g / m 3} and a first relative humidity condition that the relative humidity is 70% RH or more. The conditions were set to satisfy both. Further, the second ventilation determination condition of the control means 27 was that the absolute humidity of the room 500 was ^{greater than 7 g / m 3} and that the relative humidity was 65% RH or more for 5 minutes. 2 The conditions were set to satisfy both the relative humidity conditions. Further, in the room 500, a heater for adjusting the dry-bulb temperature (air temperature) of the room 500 and a humidifier for adjusting the relative humidity of the room 500 are arranged.

In the ventilation experiment, the outdoor temperature was set to 5 ° C, and the indoor temperature of 500 was set to 20 ° C. That is, the outdoor temperature was set to the temperature of the winter season. Here, when the temperature of the indoor 500 approaches the outdoor temperature, the absolute humidity of the indoor 500 is 7 g / m ³ or less, which is the first absolute humidity condition (condensation determination condition is satisfied). Therefore, in this experiment, the dew condensation determination condition is satisfied. Was already satisfied, and the ventilation experiment was conducted on the assumption that the control means 27 is executing the dew condensation determination mode. Further, when the first relative humidity condition (70% RH) and the second relative humidity condition (65% RH) are satisfied by setting the temperature of the room 500 to 20 ° C., the second absolute humidity condition (indoor 500) is satisfied. The ventilation experiment was carried out so that the absolute humidity of the ^{above was inevitably satisfied (greater than 7 g / m 3).}

Then, in a state where the temperature of the room 500 was raised above 20 ° C. using a heater, the heater was stopped and the humidifier was driven. Then, when the first ventilation determination condition or the second ventilation determination condition (first relative humidity condition or second relative humidity condition) is satisfied and the ventilation device 4 is driven, the change in humidity in the room 500 is observed. did. The results of the ventilation experiment are shown in FIG.

As a result of the ventilation experiment, as shown in FIG. 5, the relative humidity of the room 500 is 60% RH while the second ventilation determination condition (second relative humidity condition) is satisfied and the ventilation device 4 is driven. It became the following. Further, even after the ventilation device 4 was driven for 1 hour and then the operation of the ventilation device 4 was terminated, the relative humidity of the room 500 was maintained at 60% RH or less for 1 hour or more. As a result, it can be confirmed that the relative humidity of the room 500 can be reduced by driving the ventilation device 4, and that the relative humidity can be kept low to some extent stably even after the driving of the ventilation device 4 is completed. It was. Even when the first ventilation determination condition (first relative humidity condition) is satisfied, as in the case where the second ventilation determination condition (second relative humidity condition) shown in FIG. 5 is satisfied, the room 500 It is considered possible to reduce the relative humidity.

(Modification example)
It should be noted that the embodiments and examples disclosed this time are exemplary in all respects and are not considered to be restrictive. The scope of the present invention is shown by the scope of claims rather than the description of the above-described embodiments and examples, and further includes all modifications (modifications) within the meaning and scope equivalent to the scope of claims.

For example, in the above embodiment, an example is shown in which the dew condensation determination condition (first condition) is “absolute humidity is 7 g / m ³ or less”, but the present invention is not limited to this. In the present invention, the numerical value "absolute humidity is 7 g / m ³ or less" is only an example, and the numerical value of the absolute humidity of the first condition may be appropriately changed according to the indoor and outdoor environments. Further, the first condition does not have to be the absolute humidity condition relating to the absolute humidity. For example, the first condition may be configured to include a relative humidity condition relating to relative humidity such as "absolute humidity is 50% RH or less" or a temperature such as "air temperature is 10 ° C or less". May be configured to include temperature conditions for. Further, the first condition does not have to be configured only by the absolute humidity condition relating to the absolute humidity. That is, the first condition may be composed of a condition that satisfies both an absolute humidity condition and another condition (for example, a relative humidity condition and a temperature condition). Further, the control means may be configured to determine that the first condition is satisfied when the first condition satisfies any one of a plurality of conditions.

Further, in the above embodiment, the first ventilation determination condition (second condition) ^{is the second absolute humidity condition that "absolute humidity is larger than 7 g / m 3} " and the second absolute humidity condition that "relative humidity is 70% RH or more". An example composed of 1 relative humidity condition is shown. In addition, the second ventilation judgment condition (second condition) ^{is the second absolute humidity condition that "absolute humidity is greater than 7 g / m 3} " and "the state where the relative humidity is 65% RH or more continued for 5 minutes". Although an example composed of the second relative humidity condition is shown, the present invention is not limited to this. In the present invention, ^{the numerical value "absolute humidity is greater than 7 g / m 3} ", the numerical value "relative humidity is 70% RH or more", and the state of "relative humidity 65% RH or more" continued for 5 minutes. Is just an example, and the absolute humidity value, relative humidity value, and relative humidity duration of the second condition may be changed as appropriate according to the indoor and outdoor environments. Further, the second condition may be composed of only one of an absolute humidity condition relating to absolute humidity and a relative humidity condition relating to relative humidity. Further, the second condition may be configured to include, for example, a temperature condition in addition to the absolute humidity condition and the relative humidity condition.

Further, in the above embodiment, when the control means 27 satisfies either the first ventilation determination condition or the second ventilation determination condition (when either of the two conditions is satisfied), the room 500 is ventilated. An example of controlling the ventilation device 4 (ventilation means) so as to be performed has been shown, but the present invention is not limited to this. In the present invention, the ventilation means may be controlled so as to ventilate the room when any one of three or more conditions is satisfied, or when one condition is satisfied. , Ventilation means may be controlled to ventilate the room.

Further, in the above embodiment, an example in which the numerical values of the first condition and the second condition are not changed from the preset values is shown, but the present invention is not limited to this. In the present invention, the numerical values of the first condition and the second condition may be changed from preset values. For example, the ventilation system may be configured so that the numerical values of the first condition and the second condition can be changed by the user or the installer of the ventilation system. Further, for example, the control means may be provided with a learning function. In this case, the ventilation system may be configured so that the numerical values of the first condition and the second condition are appropriately changed by learning by inputting the presence or absence of dew condensation to the control means by the user.

Further, in the above embodiment, an example is shown in which the dew condensation determination mode continues for 24 hours (first period) after the last dew condensation determination mode is satisfied, but the present invention is not limited to this. In the present invention, the time of "24 hours" is just an example, and the first period may be changed as appropriate. Further, the ventilation system may be configured so that the dew condensation determination mode is continued for the first period after the dew condensation determination condition is first satisfied, not after the dew condensation determination mode is finally satisfied.

Further, in the above embodiment, the control means 27 is driven by the ventilation device 4 (ventilation means) continuously for one hour while the dew condensation determination mode is being executed, and then the drive of the ventilation device 4 is terminated. An example is shown in which the dew condensation determination mode is terminated, but the present invention is not limited to this. In the present invention, the time of "1 hour" is just an example and may be changed as appropriate. Further, during the execution of the dew condensation determination mode, the driving of the ventilation means may be interrupted when an arbitrary ventilation interruption condition is satisfied, and the operation of the interrupted ventilation means may be restarted when the second condition is satisfied again. .. Further, during the execution of the dew condensation determination mode, if any ventilation interruption condition is satisfied, the driving of the ventilation means may be terminated and the dew condensation determination mode may be terminated.

Further, in the above embodiment, if the control means 27 satisfies the dew condensation determination stop condition after the end of the drive of the ventilation device 4 (ventilation means) (after the end of the dew condensation determination mode), the control means 27 is started after the end of the drive of the ventilation device 4. An example is shown in which the dew condensation determination mode is not executed for 3 hours (condensation determination stop state), but the present invention is not limited to this. In the present invention, the control means may be in the dew condensation determination stop state for less than 3 hours or longer than 3 hours after the end of driving the ventilation means. Further, the control means may be configured so as not to switch to the dew condensation determination stop state.

Further, in the above embodiment, an example is shown in which the dew condensation determination condition (first condition) and the first ventilation determination condition and the second ventilation determination condition (second condition) are contradictory to each other. Not limited to this. In the present invention, the first condition and the second condition do not have to be configured by contradictory conditions. In this case, it is preferable that the second condition is configured by a condition that does not satisfy the first condition. Further, the second condition may be configured by a condition satisfying the first condition. In this case, it is necessary to make the second condition narrower than the first condition.

Further, in the above embodiment, an example in which the heat cage mode is provided in the control means 27 separately from the dew condensation determination mode is shown, but the present invention is not limited to this. In the present invention, it is not necessary to provide the heat cage mode in the control means.

Further, in the above embodiment, an example in which the ventilation system 1 is composed of a detector 2 including a control means 27, a cooker 3 (heating means), and a ventilation device 4 (ventilation means) is shown. Is not limited to this. For example, the ventilation system may consist of only two devices, a detector including a detector and a control means, and a ventilation means. Further, the ventilation system may be composed of only one device including a detection unit, a control means and a ventilation means. Further, the ventilation system may consist of four or more devices including a detector, heating means, and devices other than the ventilation means.

Further, in the above embodiment, an example in which the detector 2 is provided with the control means 27 for controlling the dew condensation is shown, but the present invention is not limited to this. For example, the control of dew condensation may be performed by the control means of the ventilation means (ventilation device 4), or may be performed by the control means other than the detector and the ventilation means.

Further, in the above embodiment, as various sensors 21, in addition to the temperature sensor 215 and the humidity sensor 216, a smoke sensor 211, a gas sensor 212, a CO sensor 213 and an air quality sensor 214 are provided in the ventilation system 1 (detector 2). However, the present invention is not limited to this. In the present invention, it is sufficient that the ventilation system is provided with a sensor capable of detecting temperature and humidity, and other sensors need not be provided in the ventilation system. Further, for example, when switching to the dew condensation determination mode and determining ventilation are performed based only on relative humidity, it is not necessary to provide a sensor capable of detecting temperature in the ventilation system, and only a sensor capable of detecting humidity is ventilated. It may be provided in the system.

Further, in the above embodiment, for convenience of explanation, the processing of the control means 27 in the claims has been described using a flow-driven flow diagram in which the processing of the control means 27 is sequentially performed along the processing flow. Not limited. In the present invention, the processing operation of the control means may be performed by event-driven (event-driven) processing that executes processing for each event. In this case, it may be completely event-driven, or it may be a combination of event-driven and flow-driven. Further, the flow charts themselves shown in FIGS. 3 and 4 are examples, and the present invention is not limited to the flows shown in FIGS. 3 and 4.

1 Ventilation system 2 Detector 3 Cooker (heating means)
4 Ventilation equipment (ventilation means)
27 Control means 215 Temperature sensor (detector)
216 Humidity sensor (detector)
500 indoors

Claims (10)

A detector that detects the air condition in the room and
Ventilation means for ventilating the air in the room and
A control means configured to switch to the dew condensation determination mode for a predetermined time when the air condition in the room satisfies the first condition is provided.
Wherein, during execution of the condensation determination mode, when the room air conditions Unlike the first condition, and filled with the high dew condensation likely than the first condition the second condition A ventilation system configured to control the ventilation means to initiate ventilation in the room. The ventilation system according to claim 1, wherein the second condition is composed of a condition that does not satisfy the first condition. The ventilation system according to claim 1 or 2, wherein the first condition and the second condition include at least one of an absolute humidity condition relating to absolute humidity and a relative humidity condition relating to relative humidity. The first condition includes the absolute humidity condition.
The ventilation system according to claim 3, wherein the second condition includes the relative humidity condition. The ventilation system according to claim 4, wherein the second condition includes the relative humidity condition and the absolute humidity condition. The second condition includes a plurality of different conditions.
The control means controls the ventilation means so as to start ventilation in the room when the air condition in the room satisfies any one of the plurality of different conditions during the execution of the dew condensation determination mode. The ventilation system according to any one of claims 1 to 5, wherein the ventilation system is configured to be used. Any one of claims 1 to 6, wherein the control means continues to execute the dew condensation determination mode for a first period after the air condition in the room finally satisfies the first condition. Ventilation system as described in the section. The control means does not execute the dew condensation determination mode for the second period when the air condition in the room satisfies the first condition and the third condition different from the second condition after the ventilation in the room is completed. The ventilation system according to any one of claims 1 to 7, which is configured as described above. Further provided with a heating means arranged in the room and having a heat source,
The control means is configured to give priority to the control of the ventilation means based on the driving state of the heating means over the control of the ventilation means during the execution of the dew condensation determination mode. The ventilation system according to any one of 8. A detector including the detection unit and the control means and provided separately from the ventilation means is further provided.
The control means of the detector communicates with the ventilation means from the detector when the air condition in the room satisfies the second condition during the execution of the dew condensation determination mode. The ventilation system according to any one of claims 1 to 9, which is configured to control the ventilation means so as to initiate ventilation in the room.

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