Air conditioning system, and air conditioning method

Abstract

To provide a control technique for an air conditioning system that is excellent in comfort for a person staying in a room, and energy-saving performance.SOLUTION: An air conditioning system according to the present invention controls an air conditioning device in accordance with conditions of a person staying in a room, and is constituted so as to estimate a comfort body surface temperature from a physical condition and a mental condition of the person, and correct a control quantity of the air conditioning device on the basis of a difference between the estimated comfort body surface temperature and a body surface temperature of the person after a temperature in the room reaches a set temperature.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air conditioning system for a living environment equipped with an air conditioner. [Background technology]

[0002] Conventionally, this type of air conditioning system has been known to determine the comfort or discomfort of occupants in homes, offices, schools, etc., and maintain comfort, for example, as described in Patent Document 1 (JP 2020-26894 A).

[0003] Patent Document 1 describes a technology for providing an air conditioning system that can maintain comfort while stimulating occupants in the room, using an air conditioning system that includes an air conditioning unit that conditions the air in the room, an acquisition device that acquires ambient environment data related to the environment surrounding the occupants in the room and emotional data related to the comfort or discomfort of the occupants for each occupant, and a control device that causes the air conditioning unit to perform a stimulation operation that stimulates the occupants in the room. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2020-26894 A Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, the sense of comfort or discomfort felt by people can be influenced not only by physical sensations but also by their mental state at the time. However, the above-mentioned conventional technologies have problems such as controlling air conditioning equipment without determining whether the spatial comfort of the people in the room is caused by their physical or mental state, which can result in unnecessarily excessive air conditioning control, resulting in high energy consumption by the air conditioning equipment, or conversely, making it not always easy to achieve sufficient comfort.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a control technology for an air conditioning system that is both comfortable and energy-efficient, by appropriately controlling the air conditioner based on the comfort or discomfort of the indoor environment perceived by occupants, based on the detection values ​​of the occupants' activity and stress. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the air conditioning system of the present invention controls the air conditioning unit according to the condition of the people in the room, and is configured to estimate a comfortable body surface temperature from the physical and mental conditions of the people in the room, and after the temperature in the room reaches a set temperature, correct the control amount of the air conditioning unit based on the difference between the estimated comfortable body surface temperature and the body surface temperature of the people in the room. Effect of the Invention

[0008] According to the present invention, the control of the air conditioner is corrected based on the activity, physical condition, and mental stress state of the occupants so that the indoor environment is one that the occupants feel comfortable in. This makes it possible to provide a comfortable indoor environment suited to the occupants' conditions.

[0009] Furthermore, since the air conditioner can be controlled appropriately to suit the state of the occupants, an air conditioning system that consumes less energy unnecessarily can be provided. [Brief description of the drawings]

[0010] [Figure 1] 1 is a diagram showing an example of an air conditioning system according to an embodiment of the present invention. [Diagram 2] 1 is a diagram showing an example of the configuration of an air conditioning device according to an embodiment of the present invention. [Diagram 3] FIG. 2 is a diagram showing an example of a configuration of a sensor and a control device according to an embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing an example of a control flow of an air conditioning system according to an embodiment of the present invention. [Diagram 5]FIG. 1 is a diagram showing an embodiment showing an example showing a relationship between an air conditioning system of the present invention and a user's behavior (activity state). [Figure 6] FIG. 1 is a diagram showing an embodiment illustrating an example showing a relationship between the air conditioning system of the present invention and another behavior of the user (sitting still). [Figure 7] FIG. 11 is a diagram showing an example of an air conditioning system according to a second embodiment of the present invention. [Figure 8] FIG. 11 is a diagram showing an example of an air conditioning system according to a third embodiment of the present invention. [Figure 9] FIG. 13 is a diagram showing an example of a comfort body surface temperature table according to an embodiment of the present invention. [Figure 10] FIG. 4 is a diagram illustrating an example of a setting table according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Also, specific operation examples of the system described in the embodiment are merely examples, and the present invention is not limited to these operations. EXAMPLES

[0012] FIG. 1 is a diagram showing an example of an embodiment of an air conditioning system of the present invention. The air conditioning system 1000 includes an air conditioner 100 that performs indoor air conditioning, and a remote device 300 that enables a user to set the operating mode of the air conditioner 100.

[0013] The air conditioner 100 is constructed of an indoor unit 110 and an outdoor unit 120, and the indoor unit 110 and the outdoor unit 120 are connected by a high-pressure connection pipe 175 and a low-pressure connection pipe 195, and an air conditioning cycle is constructed by connecting the indoor unit 110 and the outdoor unit 120 by the high-pressure connection pipe 175 and the low-pressure connection pipe 195.

[0014] The remote control device 300 has a function that allows a user to operate it indoors to set operation modes such as cooling, heating, ventilation, comfortable cooling, comfortable heating, etc., and operation parameters such as indoor temperature, indoor ventilation volume, indoor ventilation direction, etc. Here, the comfortable cooling and comfortable heating operation modes are unique operation modes in the embodiment of the present invention, and as described later, in addition to normal cooling and heating operations, they enable more comfortable air conditioning control according to the user's condition.

[0015] The indoor unit 110 of the air conditioner 100 further includes an activity amount detection sensor 200 that detects the user's behavior, body surface temperature, and activity amount, a stress detection sensor 210 that detects the user's stress, a temperature sensor 220 that detects the indoor temperature, and a control device 400 that aggregates the detection values ​​and set values ​​of each sensor and controls the air conditioner 100. The outdoor unit 120 also includes a control device 410, which performs various controls of the outdoor unit 120 based on instructions from the control device 400.

[0016] The activity detection sensor 200, for example, utilizes thermography using an infrared camera or the like to analyze the acquired moving images and detect the activity amount from the user's movement amount and movement speed, and at the same time evaluates the user's body surface temperature, thereby simultaneously detecting the user's activity amount and body surface temperature.

[0017] Note that the configuration is not limited to the above, and can be any configuration that can simultaneously evaluate activity and body surface temperature, such as by combining a normal camera with a wearable sensor that can measure body surface temperature, rather than being limited to thermography using an infrared camera.

[0018] The stress detection sensor 210 evaluates the stress value by remotely detecting the heart rate of the user using a millimeter wave sensor. Note that stress detection using a millimeter wave sensor is an example of the stress detection sensor 210, and a wearable sensor having a function of directly measuring the heart rate of the user may also be used (described later in Example 2).

[0019] 2 is a diagram showing a more detailed configuration example of the air conditioner 100, in which the indoor unit 110 is constructed with an indoor heat exchanger 180 and an indoor blower 190. The indoor heat exchanger 180 is also provided with a temperature sensor 230 that detects the temperature of the refrigerant, and the temperature sensor 230 can detect the condensation temperature of the refrigerant during cooling and the evaporation temperature during heating.

[0020] The outdoor unit 120 is composed of a compressor 130, a four-way valve 140, an outdoor heat exchanger 150, an outdoor blower 160, and an expansion valve 170. The outdoor heat exchanger 150 is provided with a temperature sensor 240 that detects the temperature of the refrigerant, and the temperature sensor 240 can detect the evaporation temperature during cooling and the condensation temperature during heating. In addition, a temperature sensor 250 that detects the outdoor air temperature is provided on the windward side of the outdoor unit 120.

[0021] 3 is a diagram showing an example of the configuration of sensors and control devices in the air conditioning system 1000 of this embodiment, in which the operation mode and operating parameters set by the remote control device 300 are received by the control device 400 and stored in a storage device (not shown). When the remote device 300 issues an instruction to start the air conditioner 100, the control device (indoor) 400 detects the indoor temperature with the temperature sensor 220 and transmits the preset operation mode, parameters, etc., and the indoor temperature detected by the temperature sensor 220 to the control device (outdoor) 410.

[0022] In the air blowing mode, the control device (indoor) 400 blows air according to the set air blowing volume and air direction.

[0023] In the cooling / heating mode, the control device (indoor) 400 that receives the start-up information transmits the operation mode, operation parameters, indoor temperature, etc. to the control device (outdoor) 410. The control device (outdoor) 410 that receives the operation mode, operation parameters, indoor temperature, etc. calculates the target air conditioning capacity using the received set temperature, indoor temperature, etc.

[0024] Then, the control device (outdoor) 410 determines the rotation speed of the compressor 130, the rotation speed of the outdoor blower 160, the indoor blower 190, and the throttling amount of the expansion valve 170 based on the calculated air conditioning capacity, and sends operating information to the compressor 130, the four-way valve 140, the outdoor blower 160, the expansion valve 170, and the indoor blower 190 to operate the equipment.

[0025] In the above description, the control device (indoor) 400 may generate main control commands based on the operation mode and operation parameters set by the remote control device 300, and the control device (outdoor) 410 may generate auxiliary operation commands based on the main control commands, or the control device (outdoor) 410 may be eliminated and the control device (indoor) 400 may perform all control (the same applies below to comfortable cooling and comfortable heating operation).

[0026] Next, the cooling comfort and heating comfort operation, which are characteristic operation modes of this embodiment, will be described. Here, the control device (indoor) 400 and the control device (outdoor) 410 control the air conditioner 100 according to the activity amount and stress value using the operation mode, operation parameters, and indoor temperature used in the cooling / heating operation mode, as well as the detection values ​​of the activity amount detection sensor 200 provided in the indoor unit 110 and the stress detection sensor 210 that detects the user's stress.

[0027] 4 is a flowchart explaining the control of the air conditioner 100 in the comfortable cooling and comfortable heating operation modes. That is, when the air conditioner 100 starts operating in the comfortable cooling and comfortable heating operation modes, in step S100, the control device (indoor) 400 recognizes the set air volume (Vs) and set temperature (Ts) from the operation mode and operation parameters set by the remote control device 300, and obtains the indoor temperature (Tr) detected by the temperature sensor 220, and transmits these values ​​to the control device (outdoor) 410.

[0028] The control device (outdoor) 410 calculates the air conditioning capacity based on the set air volume (Vs) and the difference between the set temperature (Ts) and the indoor temperature (Tr), starts the air conditioning device 100 in cooling mode if the cooling comfort mode is selected, or in heating mode if the heating comfort mode is selected, and proceeds to the next step S110.

[0029] In step S110, the activity amount detection sensor 200 acquires a body surface temperature (Tb) and an activity amount (AR), and the stress detection sensor 210 acquires a stress value (SR). The body surface temperature (Tb) is a representative temperature of the body surface of the user to be air-conditioned, and an average value of the body surface temperatures detected by the activity amount detection sensor 200 may be used, or a part that greatly affects the comfort of the user may be used as the representative temperature. For example, the body surface temperature of a specific part of the user's face, such as the cheeks, nose, or forehead, may be used based on sensor information such as an image or thermography, or a combination of temperatures of multiple specific parts may be used as the body surface temperature.

[0030] The activity level (AR) of the user 500 to be air-conditioned is an index for determining whether the user 500 is engaged in activities in the air-conditioned space, as shown in FIG. 5, and is used to determine whether the user 500 is engaged in activities such as cleaning, cooking, or physical entertainment within the air-conditioned space.

[0031] As shown in Fig. 5, the conditioned space may be regarded as a two-dimensional space, and the movement speed (V) of the center of gravity of the user 500 obtained from an image acquired by the activity amount detection sensor 200 may be regarded as the activity amount (AR). In this case, the movement speed may be calculated from the information of the activity amount detection sensor as follows: V = {(x(t i )-x(t i-1 )) 2 +(y(t i )-y(t i-1 )) 2} 1 / 2 / {t i -t i-1} It can be calculated as:

[0032] The above-mentioned method of using the moving speed of the center of gravity of the user 500 as an evaluation index of the activity amount (AR) is an example of this embodiment, and is not limited to the evaluation method of the activity amount shown in this example as long as it is a method that can evaluate the activity amount of the user 500. For example, the activity amount may be directly obtained from the user 500 using a wearable sensor having a function of detecting the moving speed, etc.

[0033] The stress value (SR) of the user 500 to be air-conditioned is an index for determining whether the user 500 is under stress in the air-conditioned space as shown in FIG. 6, and can be used to determine, for example, whether the user 500 is feeling mental stress such as sadness, joy, anger, etc.

[0034] Here, the stress value (SR) of the user 500 can be evaluated by measuring the heart rate using the millimeter wave sensor or image sensor of the stress detection sensor 210, separating the low frequency component (LF) and high frequency component (HF) of the heart rate, and calculating LF / HF.

[0035] Note that the above-mentioned method of using the stress value (SR) of the user 500 as an evaluation index is an example of this embodiment, and is not limited to this detection method as long as it can evaluate the stress value of the user 500. For example, changes in the breath or skin potential of the user 500 may be used, or the stress value (SR) may be obtained directly from the user using a wearable sensor that comes into direct contact with the user 500, rather than a non-contact sensor such as an image or infrared sensor.

[0036] It is generally believed that a user who is feeling mental stress has a body surface temperature about 1 to 2 degrees higher than a user who is not feeling stressed (for example, Transactions of the Institute of Electrical Engineers of Japan, Series C, Vol. 117, No. 1: "Evaluation of Emotions from Facial Skin Temperature"). Therefore, the air conditioning system 1000 of this embodiment detects whether the user 500 is stressed and corrects and controls the comfortable body surface temperature at rest for the temperature rise caused by stress, thereby providing a more comfortable air-conditioned space even for a stressed user 500.

[0037] Returning to the flowchart of FIG. 4, in step S120, the control device (indoor) 400 compares the set temperature (Ts) with the indoor temperature (Tr) detected by the temperature sensor 220, and if the difference between the indoor temperature (Tr) and the set temperature (Ts) is equal to or smaller than the threshold value (ε0) (| T r - T s If |≦ε0), it is determined that the room temperature (Tr) has almost reached the set temperature (Ts), and the control step moves to S130. If the difference between the room temperature (Tr) and the set temperature (Ts) does not become equal to or less than the threshold, the control step moves to S140.

[0038] In step S140, the control device (indoor) 400 evaluates the start-up time (tin) for transitioning from the start-up operation state to the comfort cooling mode and the comfort heating mode. The start-up time (tin) can be appropriately selected, for example, from the operation time until the air conditioner 100 goes from the start-up state to the steady state (the time it is estimated to reach the set temperature, for example, about 20 minutes). In other words, when the elapsed time (time) after the start-up of the air conditioner 100 reaches or exceeds the start-up time (tin) (time≧t in ), it is determined that the startup operation has ended and the control step proceeds to S130. If the elapsed time (time) does not reach the startup time (tin), the control step returns to S110.

[0039] Next, in step S130, a cycle counter (time) is counted to determine the cycle of performing comfort evaluation in the comfort cooling mode and the comfort heating mode. c ) and initialize (time c ←0), and move the control step to S200.

[0040] Then, in step S200, it is determined whether a certain time has passed since the previous comfort evaluation. c ) is equal to or greater than the period (tcn) (time c ≧t ch The control device (indoor) 400 determines that a certain amount of time has passed since the previous comfort evaluation, and moves the control step to S300. cIf the time tcn does not reach the cycle time (tcn), the control step proceeds to S900.

[0041] In step S300, the control device (indoor) 400 judges whether the user to be air-conditioned is active. That is, the control device (indoor) 400 judges whether the user is active by comparing the amount of activity (AR) obtained from the activity amount detection sensor 200 with the activity amount threshold value (AR cr ) to filter out minor actions and movements and determine whether the user is engaged in any activity.

[0042] Activity level (AR) is the threshold (AR cr ) or more (AR≧AR cr ), the control device (indoor) 400 determines that the user to be air-conditioned is engaged in some kind of activity, and stores the user's activity status as "active" (step S310). cr ) is not met, it is determined that the user to be air-conditioned is hardly active, and the user's activity status is stored as "none" (step S320).

[0043] Next, in step S400, the control device (indoor) 400 judges whether the user, who is the target of air conditioning, is under mental stress. In step S400, the control device (indoor) 400 compares the stress value (SR) of the user measured by the stress detection sensor 210 with the standard stress value (SR) felt in daily life. cr ) and compares the difference with the threshold value (ε1) to determine whether the user is in a stressed state. cr ) and the threshold value (ε1) may be set to appropriate values ​​in advance.

[0044] That is, the user's stress value (SR) and the standard stress value (SR cr ) is greater than or equal to the threshold (ε1) (|SR-SR cr| ≧ε1), the control device (indoor) 400 determines that the user is in a stressed state and stores the user's stress state as "Yes" (step S410). If the difference is less than the threshold (ε1), the control device (indoor) 400 determines that the user is not in a stressed state and stores the user's stress state as "No" (step S420).

[0045] In step S500, a comfortable body surface temperature (T b conf The comfortable body surface temperature is determined by determining predetermined values ​​in advance for the presence or absence of stress and activity status of the user and storing them in a table, and the values ​​are used according to the determined stress status and activity status of the user.

[0046] FIG. 9 shows an example of such a comfortable body surface temperature table. For example, the body surface temperatures (e.g., nose temperatures) of a large number of subject users are measured in advance for each situation, such as the presence or absence of stress or activity, and the body surface temperature at which the users feel comfortable (PMV=0) can be experimentally determined by a questionnaire survey or the like using an index such as PMV.

[0047] In step S510, the control device (indoor) 400 judges whether the temperature of the user to be air-conditioned has reached a comfortable temperature. b ) and the comfortable body surface temperature (T b conf ) is less than or equal to the threshold (ε2) (| T b -T b conf If the difference is greater than the threshold, it is determined that the user's state is not comfortable, and the control step is advanced to S520.

[0048] In step S520, the control device (indoor) 400 judges whether the user to be air-conditioned has changed to a comfortable state based on the elapsed time of the comfort cooling and comfort heating operations. b0 ) and comfortable body surface temperature (T b conf ) difference (ΔT b0 =|T b0 -T b conf |) and the current user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ) difference (ΔT b =|T b -T b conf Compare with |).

[0049] |ΔT b | / |ΔT b0 If | ≥ 1, the user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ) is larger than in the previous cycle, it is determined that the user is moving away from a comfortable state, and the control step moves to S530. b ) is the body surface temperature (T b0 ) and moves the control step to S800.

[0050] In step S530, the control device (indoor) 400 calculates the user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ), a decision is made as to whether to change the required capacity (cooling capacity / heating capacity) of the air conditioner 100 or to change the indoor air volume.

[0051] That is, the user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ) is the threshold (ΔT bcr), the required capacity of the air conditioner 100 is set to the body surface temperature (T b ) and comfortable body surface temperature (T b conf ) and transmits the changed required air conditioning capacity to the control device (outdoor) 410, and the control step proceeds to S800.

[0052] In addition, the user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ) is the threshold (ΔT bcr ), the indoor airflow of the air conditioner 100 is adjusted to the body surface temperature (T b ) and comfortable body surface temperature (T b conf ) and transmits the rotation speed of the indoor blower 190 from the control device (indoor) 400 so that the calculated indoor air volume is achieved, and the control step proceeds to S800.

[0053] The required capacity and indoor air volume of the air conditioner 100 described above are determined based on the user's body surface temperature (T b ) and comfortable body surface temperature (T b conf ) can be calculated in advance and stored as a setting table as shown in FIG. 10, and this table can be referenced when making calculations. For example, b ) and (T b conf ) is 1.5°C, the rotation speed of the indoor blower 190 is transmitted as "3", and if the difference is 2.5°C, the required air-conditioning capacity is transmitted as "2".

[0054] As mentioned above, the body surface temperature (T b ) and comfortable body surface temperature (T b conf By changing the control method based on the difference between the two, it is possible to achieve variable air conditioning capacity control that prioritizes comfort, and variable air supply control that balances comfort and energy efficiency.

[0055] In step S800, the control device (indoor) 400 detects the body surface temperature (T b) detected in the previous cycle (T b0 ) and the control proceeds to step S900.

[0056] In step S900, the control device (indoor) 400 acquires the room temperature (Tr) from the temperature sensor 220, and also acquires the body surface temperature (Tb), the activity amount (AR), and the stress value (SR) from the activity amount detection sensor 200, and proceeds to the next control step S1000. In step S1000, the control device (indoor) 400 counts up a cycle counter (time c ) is initialized, and the control step proceeds to S200.

[0057] By using the above-mentioned configuration and control flow, this embodiment can estimate the comfort temperature that the user 500 feels comfortable at depending on the mental and physical state of the user to be air-conditioned, and perform control based on the user's condition. Also, it is possible to select between required air-conditioning capacity variable control and airflow variable control depending on the difference between the user's body surface temperature and the comfort temperature, and it is possible to provide a control technology that achieves both comfort and energy saving. The present invention is not limited to the above-described embodiment, and includes various modifications and combinations within the scope of the gist of the present invention. Furthermore, the present invention is not limited to those having all of the configurations described in the above-described embodiment, and includes those in which some of the configurations are omitted. EXAMPLES

[0058] FIG. 7 shows an example of an air conditioning system according to a second embodiment of the present invention, in which the stress detection sensor 210 of the first embodiment is replaced with a wearable sensor 210A, and the remote device 300 is configured as a mobile terminal 300A.

[0059] Here, the wearable sensor 210A can be, for example, a smart watch having a function of measuring a heart rate or the like and transmitting the measurement result to a predetermined device, etc. Also, the mobile terminal 300A can be realized by installing a predetermined application on a smartphone or tablet terminal.

[0060] As described above, even when the wearable sensor 210A is used instead of the stress detection sensor 210, the stress value detected by the wearable sensor 210A can be transmitted to the control device (indoor) 400 of the indoor unit 110 via the mobile terminal 300A by using wireless communication or the like. As a result, the same effects as those of the first embodiment can be obtained in this embodiment as well.

[0061] In addition, wearable sensor 210A can measure physical data other than heart rate, such as pulse, body temperature, and blood pressure, and by evaluating these measurement data as well, it is possible to perform more detailed comfortable air conditioning control.

[0062] Furthermore, when there are multiple users, each user can wear a wearable sensor 210A, and their physical data can be collected by the mobile terminal 300A and subjected to statistical processing, etc., thereby enabling comfortable air conditioning control for multiple users present in the room.

[0063] In addition, when the user is outside, the user's physical data can be measured in advance using wearable sensor 210A, and air conditioning control commands can be sent in advance from mobile terminal 300A carried by the user at that location, so that when the user subsequently enters the room, optimal air conditioning control can be completed. EXAMPLES

[0064] 8 shows an example of an air conditioning system according to a third embodiment of the present invention, in which a standalone sensor 200A is used instead of the activity amount detection sensor 200 provided in the indoor unit 110 of the air conditioner 100 of the first and second embodiments. The other configurations are the same as those of the second embodiment.

[0065] In this embodiment, the activity amount detection sensor 200A is configured as a single sensor. Therefore, even in cases where blind spots are likely to occur between the indoor unit 110 and the user due to the layout of the room or the arrangement of furniture, for example, it is possible to accurately obtain the user's activity amount by placing the activity amount detection sensor 200A in an appropriate location.

[0066] Furthermore, similarly to the second embodiment, the activity amount and stress value can be transmitted to the control device (indoor) 400 of the indoor unit 110 via the mobile terminal 300A by using wireless communication or the like. As a result, in this embodiment as well, in addition to the above-mentioned effects, the same effects as those of the first and second embodiments can be obtained. [Explanation of symbols]

[0067] 1000: air conditioning system, 100: air conditioner, 110: indoor unit, 120: outdoor unit, 130: compressor, 140: four-way valve, 150: outdoor heat exchanger, 160: outdoor blower, 175: high-pressure connection pipe, 180: indoor heat exchanger, 190: indoor blower, 195: low-pressure connection pipe, 200: activity amount detection sensor, 210: stress detection sensor, 220: indoor temperature sensor, 240: temperature sensor, 250: temperature sensor, 300: remote device, 400: control device (indoor), 410: control device (outdoor), 500: user

Claims

1. An air conditioning system that controls an air conditioner according to the status of people in a room, An air conditioning system characterized in that a comfortable body surface temperature is estimated from the physical and mental conditions of the occupants, and after the temperature in the room reaches a set temperature, a control amount of the air conditioning device is corrected based on the difference between the estimated comfortable body surface temperature and the body surface temperature of the occupants.

2. 2. The air conditioning system according to claim 1, The air conditioning device is An activity detection device that detects a body surface temperature and a movement / activity of the occupant as a physical condition of the occupant; A stress detection device that detects mental stress as the mental state of the person in the room; An air conditioning system comprising:

3. The air conditioning system according to claim 2, The activity detection device detects an amount of activity of the occupant from the amount and speed of movement of the occupant by analyzing an image acquired by an infrared camera, and simultaneously acquires a body surface temperature of the occupant. The air conditioning system, wherein the stress detection device obtains the stress value of the occupant by remotely detecting the heart rate of the occupant using a millimeter wave sensor.

4. The air conditioning system according to claim 3, An air conditioning system, characterized in that the activity detection device is composed of a normal camera instead of the infrared camera and a wearable sensor capable of measuring the body surface temperature of the occupants.

5. The air conditioning system according to claim 3, An air conditioning system, wherein the activity detection device is installed at any location in the room separately from the air conditioning device.

6. An air conditioning system according to any one of claims 3 to 5, The air conditioning system, wherein the stress detection device is configured with a wearable sensor that can directly measure heart rate by being worn by the occupant instead of the millimeter wave sensor.

7. The air conditioning system according to claim 6, a comfortable body surface temperature table in which predetermined values ​​are stored for each of the conditions of whether or not the occupant is experiencing mental stress and whether or not the occupant is experiencing physical activity; An air conditioning system, characterized in that the comfort body surface temperature is estimated by referring to the comfort body surface temperature table.

8. The air conditioning system according to claim 7, An air conditioning system characterized in that either the air flow rate or the air conditioning capacity of the air conditioner is selected and controlled based on the difference between the estimated comfortable body surface temperature and the body surface temperature of the person in the room.

9. 9. The air conditioning system according to claim 8, a setting table in which a setting value of the airflow rate or air conditioning capacity of the air conditioner corresponding to a difference between the body surface temperature of the person in the room and a comfortable body surface temperature is stored in advance, An air conditioning system, characterized in that the air conditioner is controlled by referring to the setting table.

10. An air conditioning method for controlling an air conditioner according to the status of people in a room, comprising: An air conditioning method comprising: estimating a comfortable body surface temperature from the physical and mental conditions of the occupants; and, after the temperature in the room reaches a set temperature, correcting a control amount of the air conditioning device based on the difference between the estimated comfortable body surface temperature and the body surface temperature of the occupants.

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