WO2022054122A1

WO2022054122A1 - Air conditioning system

Info

Publication number: WO2022054122A1
Application number: PCT/JP2020/033900
Authority: WO
Inventors: 英希大野; 圭吾岡島; 隆池田
Original assignee: 三菱電機株式会社
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2022-03-17
Also published as: JPWO2022054122A1

Abstract

In the present invention, an air conditioner cools a specified space (40). A compressor and a first heat exchanger of the air conditioner are disposed outside of the specified space (40), and a second heat exchanger (10) and sensor units of the air conditioner are disposed in the specified space (40). A server device uses a physical quantity of the specified space (40) as measured by each of the sensor units (30) and running data for the air conditioner to control the air conditioner. The sensor units (30) include a plurality of first sensors (31) and a plurality of second sensors (32). Each of the plurality of first sensors (31) is disposed along a wall (W1-W4) of the specified space (40) and measures the temperature of a first region (Rg1) in the specified space (40). Each of the plurality of second sensors (32) is disposed on the ceiling (Ce) of the specified space (40) and measures the temperature of a second region (Rg2) in the specified space (40). The first regions (Rg1) are smaller than the second regions (Rg2) and are outside of the second regions (Rg2).

Description

Air conditioning system

This disclosure relates to an air conditioning system.

Conventionally, an air conditioning system is known. For example, International Publication No. 2019/224916 (Patent Document 1) discloses an air conditioning control system in which an air conditioner is connected to a server via a network. The air conditioner has an environment detection sensor and a load side unit. The environment detection sensor detects the temperature for each of a plurality of compartments in which the air-conditioned space is divided horizontally and vertically. The load side unit harmonizes the air-conditioned space. According to the air conditioner, the temperature of each compartment is detected for a plurality of compartments in which the air-conditioned space is divided horizontally and vertically, so that the user can store the stored material in a compartment having a temperature suitable for storage. Can be placed. In addition, since the section where the stored material is not placed is not air-conditioned more than necessary, the power consumption can be suppressed.

International Publication No. 2019/224916

In the air conditioning control system disclosed in Patent Document 1, environment detection sensors are arranged in each of a plurality of sections in which the air conditioning target space is divided in the horizontal direction and the vertical direction. Therefore, depending on the number of the plurality of sections, the cost of installing and maintaining the environment detection sensor may increase. However, Patent Document 1 does not consider the cost reduction.

This disclosure is made to solve the above-mentioned problems, and the purpose is to reduce the cost of the air conditioning system.

The air conditioning system according to the present disclosure includes an air conditioner and a server device. Refrigerant circulates in the air conditioner, and the air conditioner cools a specific space. The server device controls the air conditioner. The air conditioner includes a compressor, a first heat exchanger, an expansion valve, a second heat exchanger, and a sensor unit. The compressor and the first heat exchanger are arranged outside the specific space. The second heat exchanger and the sensor unit are arranged in a specific space. The refrigerant circulates in the order of the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger. The server device controls the air conditioner using the physical quantity of the specific space measured by each of the sensor units and the operation data of the air conditioner. The sensor unit includes a plurality of first sensors and a plurality of second sensors. Each of the plurality of first sensors is arranged along the wall of the specific space and measures the temperature of the first region of the specific space. Each of the plurality of second sensors is arranged on the ceiling of the specific space and measures the temperature of the second region of the specific space. The first region is narrower than the second region and is a region outside the second region.

According to the present disclosure, each of the plurality of first sensors is arranged along the wall of the specific space to measure the temperature of the first region of the specific space, and each of the plurality of second sensors is arranged on the ceiling of the specific space. By measuring the temperature of the second region of the specific space, the first region is narrower than the second region, and the region is outside the second region, the manufacturing cost of the air conditioning system can be reduced.

It is a block diagram which shows the structure of the air conditioning system which concerns on embodiment. It is a block diagram which also shows the structure of the air conditioner of FIG. 1 and the flow of a refrigerant in a cooling operation. It is a figure which also shows the structure of the air conditioner of FIG. 1 and the flow of a refrigerant in a defrosting operation. It is a figure which shows the appearance that a plurality of temperature / humidity sensors and a plurality of infrared sensors included in the sensor unit of FIG. 1 are arranged in a warehouse. FIG. 4 is a plan view of the ceiling of the warehouse of FIG. 4 from the Z-axis direction. It is a figure which shows the relationship between the compressor output, the target evaporation temperature, the operation rate, the cooling capacity, and the efficiency of the air conditioner of FIG. It is a figure which also shows the time chart of the highest temperature and the target temperature in the warehouse of FIG. It is a flowchart which shows the flow of the setting process of the target temperature performed in a server apparatus. It is an external view of the tablet which is an example of the terminal apparatus of FIG.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In principle, the same or corresponding parts in the figure are designated by the same reference numerals and the description is not repeated.

FIG. 1 is a block diagram showing the configuration of the air conditioning system 1000 according to the embodiment. As shown in FIG. 1, the air conditioning system 1000 includes a terminal device 80, a server device 90, and an air conditioner 100. The terminal device 80, the server device 90, and the air conditioner 100 are connected to each other via the network NW. The network NW includes, for example, the Internet, a WAN (Wide Area Network), and a LAN (Local Area Network). The number of terminal devices 80 connected to the network NW may be two or more. The number of air conditioners 100 connected to the network NW may be two or more.

The terminal device 80 acquires information about the air conditioner 100 via the server device 90. The terminal device 80 transmits an operation command to the air conditioner 100 via the server device 90. The terminal device 80 includes, for example, a PC (Personal Computer), a tablet, or a smartphone.

The server device 90 acquires and stores the operation data of the air conditioner 100 and the data regarding the space air-conditioned by the air conditioner 100 from the air conditioner 100. The server device 90 learns the optimum control for the air conditioner 100 by using the accumulated data. The server device 90 analyzes the airflow in the space air-conditioned by the air conditioner 100, and transmits a control command to the air conditioner 100. The control command includes, for example, a target evaporation temperature, a target temperature, a start timing of the defrosting operation, an air volume, and a wind direction.

The server device 90 includes a processing circuit 91, a memory 92, a communication unit 93, and an input / output unit 94. The processing circuit 91, the memory 92, the communication unit 93, and the input / output unit 94 are connected to each other via the bus 95.

The processing circuit 91 may be dedicated hardware, or may be a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit) that executes a program stored in the memory 92. When the processing circuit 91 is dedicated hardware, the processing circuit 91 may include, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC (Application Specific Integrated Circuit), or an FPGA (FPGA). Field Programmable Gate Array) or a combination of these is applicable. When the processing circuit 91 is a CPU, the function of the server device 90 is realized by software, firmware, or a combination of software and firmware. The software or firmware is described as a program and stored in the memory 92. Each of the CPU and the GPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microprocessor, a processor, or a DSP (Digital Signal Processor).

For example, a machine learning program, a control program of the air conditioner 100, and an airflow analysis program are stored in the memory 92. The processing circuit 91 reads out and executes the program stored in the memory 92. The memory 92 stores operation data of the air conditioner 100 and data regarding the space air-conditioned by the air conditioner 100. The memory 92 includes a non-volatile or volatile semiconductor memory (for example, RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), or EPROM (Electrically Erasable Programmable Read Only Memory). )), And includes magnetic discs, flexible discs, optical discs, compact discs, mini discs, or DVDs (Digital Versatile Discs).

The communication unit 93 communicates with each of the plurality of air conditioners 100 via the network NW. The input / output unit 94 receives an operation from the user and outputs the processing result to the user. The input / output unit 94 includes, for example, a mouse, a keyboard, a touch panel, a display, and a speaker.

The air conditioner 100 includes a system controller 1, a plurality of unit coolers 10, a condensing unit 20, a plurality of sensor units 30, and a receiver 50. The plurality of sensor units 30 include a plurality of temperature / humidity sensors 31 (a plurality of first sensors) and a plurality of infrared sensors (a plurality of second sensors). A temperature sensor may be used instead of the temperature / humidity sensor 31.

The system controller 1 receives a control command from the server device 90 and controls a plurality of unit coolers 10 and a condensing unit 20 in an integrated manner. The system controller 1 transmits the operation data of the air conditioner 100 to the server device 90. The operation data includes, for example, the drive frequency of the compressor, the degree of superheating of the refrigerant flowing out of the evaporator, the degree of supercooling of the refrigerant flowing out of the condenser, and the opening degree of the expansion valve.

The plurality of unit coolers 10 are arranged in each of the plurality of warehouses 40 (specific spaces). In the air conditioner 100, the refrigerant circulates between the plurality of unit coolers 10 and the condensining unit 20, and each of the plurality of warehouses 40 is cooled by the unit coolers 10 arranged in the warehouse 40. The air conditioner 100 performs a cooling operation and a defrosting operation. The plurality of sensor units 30 are arranged in the plurality of warehouses 40, respectively. Each of the plurality of sensor units 30 transmits the temperature and humidity of the warehouse in which the sensor unit 30 is arranged to the receiver 50. The receiver 50 transmits the temperature and humidity of the plurality of warehouses 40 measured by the plurality of sensor units 30 to the server device 90. The temperature and humidity may be transmitted to the server device 90 via the system controller 1.

FIG. 2 is a block diagram showing the configuration of the air conditioner 100 of FIG. 1 and the flow of the refrigerant in the cooling operation. As shown in FIG. 2, each of the plurality of unit coolers 10 includes an expansion valve 11, an evaporator 12, a controller 14, a wind direction adjusting unit 15, a fan 16, and an on-off valve. 17 and 18 are included. The fan 16 blows air toward the evaporator 12. The wind direction adjusting unit 15 adjusts the direction of the air flow discharged from the evaporator 12 to the outside of the unit cooler 10. The condensing unit 20 includes a compressor 21, a condenser 22 (first heat exchanger), an on-off valve 23, and a controller 24.

The system controller 1 controls the direction (angle) of the wind direction adjusting unit 15, the opening degree of the expansion valve 11, the rotation speed of the fan 16, and the opening / closing of the on-off valve 17 via the controller 14. The system controller 1 controls the drive frequency of the compressor 21 and the opening / closing of the on-off valve 23 via the controller 24. The system controller 1 and the

controllers

14 and 24 may be integrally formed.

In the cooling operation, the refrigerant circulates in the order of the compressor 21, the condenser 22, the on-off valve 18, the expansion valve 11, and the evaporator 12. The on-off

valves

23 and 17 are connected in series in this order between the discharge port of the compressor 21 and the inflow port of the evaporator 12. In the cooling operation, the on-off valve 18 is opened and the on-off

valves

17 and 23 are closed.

FIG. 3 is a diagram showing the configuration of the air conditioner 100 of FIG. 1 and the flow of the refrigerant in the defrosting operation. As shown in FIG. 3, when the start condition of the defrosting operation is satisfied in a certain unit cooler 10, the on-off valve 23 and the on-off valve 17 included in the unit cooler 10 are opened, and the unit cooler 10 is opened. The included on-off valve 17 is closed. A part of the high temperature refrigerant discharged from the compressor 21 is supplied to the evaporator 12 without going through the condenser 22 and the expansion valve 11. The frost generated in the evaporator 12 is melted by the high temperature refrigerant from the compressor 21.

FIG. 4 is a diagram showing how a plurality of temperature / humidity sensors 31 and a plurality of infrared sensors 32 included in the sensor unit 30 of FIG. 1 are arranged in the warehouse 40. In FIG. 4, the X-axis, the Y-axis, and the Z-axis are orthogonal to each other. The minus direction of the Z axis is the direction of gravity. As shown in FIG. 4, the warehouse 40 includes a ceiling Ce, walls W1, W2, W3, W4, and a floor Fr. The ceiling Ce and the floor Fr face each other in the Z-axis direction. The walls W1 and W3 face each other in the X-axis direction. The walls W2 and W4 face each other in the Y-axis direction. Each of the walls W1 and W3 connects the walls W2 and W4. Each of the walls W1 to W4 connects the ceiling Ce and the floor Fr.

The unit cooler 10 is arranged in the center of the connection portion between the ceiling Ce and the wall W2 inside the warehouse 40. The wind direction adjusting unit 15 of the unit cooler 10 is directed to the inside of the warehouse 40.

Inside the warehouse 40, a plurality of temperature / humidity sensors 31 are arranged from the ceiling Ce to the floor Fr along the Z-axis direction around the connection portions of the walls W1 and W2. A plurality of temperature / humidity sensors 31 are arranged around the connection portions of the walls W1 and W4 from the ceiling Ce to the floor Fr along the Z-axis direction. A plurality of temperature / humidity sensors 31 are arranged from the ceiling Ce to the floor Fr along the Z-axis direction in the central portion of the wall W1. A plurality of temperature / humidity sensors 31 are arranged around the connection portions of the walls W2 and W3 from the ceiling Ce to the floor Fr along the Z-axis direction. A plurality of temperature / humidity sensors 31 are arranged around the connection portions of the walls W3 and W4 from the ceiling Ce to the floor Fr along the Z-axis direction. A remote controller 60 of the unit cooler 10 is arranged on the wall W3. A plurality of infrared sensors 32 are arranged along the Y-axis direction in the central portion of the ceiling Ce. The plurality of infrared sensors 32 is less than the plurality of temperature / humidity sensors 31.

FIG. 5 is a plan view of the ceiling Ce of the warehouse 40 of FIG. 4 from the Z-axis direction. In FIG. 5, the region Rg1 (first region) is the measurement region of the temperature / humidity sensor 31. The region Rg2 (second region) is a measurement region of the infrared sensor 32. As shown in FIG. 5, the region Rg1 is a region around the temperature / humidity sensor 31. The region Rg1 is smaller than the region Rg2. The region Rg1 is a region outside the region Rg2.

In the analysis of the airflow in the warehouse 40, the data around the walls W1 to W4 that are the boundaries of the airflow are more important than the data in the central part in the warehouse 40. The data that requires high accuracy in the airflow analysis is acquired by the temperature / humidity sensor 31, and the data in the space where a certain degree of low accuracy is allowed is acquired by the infrared sensor 32. By changing the measurement area of the sensor that acquires the data according to the importance of the data in the airflow analysis, it is possible to realize highly accurate airflow analysis while reducing the number of sensors. Further, since it is not necessary to install the sensor in the central portion of the warehouse 40, it is possible to reduce the cost of installing and maintaining the sensor, and to improve the degree of freedom and convenience of the design in the warehouse 40. can.

FIG. 6 is a diagram showing the relationship between the compressor output, the target evaporation temperature, the operating rate, the cooling capacity, and the efficiency of the air conditioner 100 of FIG. The curve C10 represents the relationship between the compressor output or the target evaporation temperature and the operating rate. The curve C11 represents the relationship between the compressor output or the target evaporation temperature and the cooling capacity. The curve C12 represents the relationship between the compressor output or the target evaporation temperature and the efficiency. As shown in FIG. 6, there is a compressor output and a target evaporation temperature that maximizes operating efficiency.

The server device 90 predicts the operating rate of the air conditioner 100 and the electricity cost per unit time (for example, one day) by using the analysis result of the airflow distribution in the warehouse 40. When changing the target evaporation temperature of the air conditioner 100, the server device 90 uses the analysis result of the airflow distribution in the warehouse 40 to set the target evaporation temperature predicted to maximize the efficiency of the air conditioner 100 to the air conditioner 100. Send.

The server device 90 detects the temperature variation (temperature unevenness) in the warehouse 40 by using the analysis result of the airflow distribution in the warehouse 40. The server device 90 raises the target temperature when the maximum temperature in the warehouse 40 is lower than the allowable temperature Tu in the warehouse 40, and lowers the target temperature when the maximum temperature in the warehouse 40 exceeds the allowable temperature Tu.

FIG. 7 is a diagram showing a time chart of the maximum temperature Tmax and the target temperature in the warehouse 40 of FIG. 4 together. In FIG. 7, the curve C21 represents the change in the highest temperature Tmax in the warehouse 40. The polygonal line C22 represents a change in the target temperature. The temperature Tgu is a lower limit of the target temperature, for example, a target temperature set by the user.

As shown in FIG. 7, in the time zone from time t1 to time t2 (> t1), the temperature difference (margin) obtained by subtracting the temperature Tmax from the allowable temperature Tu is larger than the threshold value Mth, so that the inside of the warehouse 40 is cooled. Less necessary. The target temperature is raised from Tgu to Tg1 (> Tgu) in order to suppress cooling by the air conditioner 100 in the time zone from time t1 to t2. Since the margin is equal to or less than the threshold value Mth at times t2 to t3, it is highly necessary to cool the inside of the warehouse 40. The target temperature is lowered from T1 in order to promote cooling by the air conditioner 100 in the time zone from time t2 to t3. In the time zone after the time t3 in FIG. 7, the margin is larger than the threshold value Mth, so that the need for cooling the inside of the warehouse 40 is low. In order to suppress cooling by the air conditioner 100 in the time zone after the time t3 in FIG. 7, the target temperature is raised from Tgu to Tg1. The threshold value Mth is appropriately determined by an actual machine experiment or a simulation.

FIG. 8 is a flowchart showing the flow of the target temperature setting process performed in the server device 90. The process shown in FIG. 8 is called for each sampling time by a main routine (not shown) that controls the server device 90 in an integrated manner. In the following, the step is simply referred to as S.

As shown in FIG. 8, the server device 90 determines whether or not the temperature Tmax is lower than the allowable temperature Tu in S11. When the temperature Tmax is equal to or higher than the allowable temperature Tu (NO in S11), the server device 90 lowers the target temperature in S14 and returns the process to the main routine. When the temperature Tmax is lower than the allowable temperature Tu (YES in S11), the server device 90 determines whether or not the margin is larger than the threshold value Mth in S12. When the margin is equal to or less than the threshold value Mth (NO in S12), the server device 90 lowers the target temperature in S14 and returns the process to the main routine. If the margin is greater than the threshold Mth (YES in S12), the server device 90 raises the target temperature in S13 and returns the process to the main routine.

The server device 90 starts the performance deterioration of the air conditioner 100 due to the frost generated in the evaporator 12 and the defrosting operation of the air conditioner 100 by using the temperature and humidity in the warehouse 40 and the operation data of the air conditioner 100. In this case, the temperature rise in the warehouse 40 is analyzed. The server device 90 starts the defrosting operation of the air conditioner 100 at the timing when the electric cost required for the defrosting operation is predicted to be the minimum, or at the timing when the temperature rise in the warehouse 40 in the defrosting operation is predicted to be the minimum. do.

The server device 90 uses the temperature and humidity in the warehouse 40, the operation data of the air conditioner 100, the position and temperature of the articles placed in the warehouse 40, and the presence or absence of a worker present in the warehouse 40. The ventilation direction of the air conditioner 100 and the rotation speed of the fan 16 are controlled so that the temperature becomes uniform inside.

FIG. 9 is an external view of the tablet 80B, which is an example of the terminal device 80 of FIG. As shown in FIG. 9, the tablet 80B displays the airflow distribution in the warehouse 40 superimposed on the three-dimensional image in the warehouse 40.

By using the tablet 80B, changes in airflow and electricity bills in the warehouse 40 can be visualized in chronological order at unit time intervals (for example, 1 day, 1 month, or 1 year). In the visualization of the change in the airflow and the change in the electricity bill in the warehouse 40 by the tablet 80B, the change in the airflow and the change in the electricity bill in the warehouse 40 when the air conditioning control as shown in FIGS. 7 and 8 is performed. It is desirable to compare and display the change in the air flow in the warehouse 40 and the change in the electricity bill when the air conditioning control is not performed. The data of the airflow change and the electricity bill in the warehouse 40 when the air conditioning control is not performed are the data for a certain period (for example, several days) acquired in the state where the air conditioning control is not performed. For example, air-conditioning system manufacturers use these data to simulate replacement with refrigeration cycle equipment, which leads to further energy savings, expansion of refrigerators, installation of fans in the heat cage area, etc., and reduce the initial cost required for it. Possible running costs can be proposed to the owner of the warehouse 40. In addition, the manufacturer of the air conditioning system should make a proposal regarding the arrangement of luggage from the viewpoint of quality improvement and energy saving improvement without the need for equipment changes due to the tendency of changes in airflow or temperature unevenness in the warehouse 40. You can also. Instead of freeing the cost of installing the sensor and the like for the sensor in the warehouse 40 and the equipment necessary for performing the airflow analysis, the owner of the warehouse 40 may be charged according to the degree of energy saving achieved.

As described above, according to the air conditioning system according to the embodiment, the manufacturing cost of the air conditioning system can be reduced.

The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present disclosure is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope of the claims.

1 system controller, 10 unit cooler, 11 expansion valve, 12 evaporator, 14, 24 controller, 15 wind direction control unit, 16 fan, 17, 18, 23 on-off valve, 20 condensing unit, 21 compressor, 22 condenser, 30 sensor unit, 31 temperature / humidity sensor, 32 infrared sensor, 40 warehouse, 50 receiver, 60 remote controller, 80 terminal device, 80B tablet, 90 server device, 91 processing circuit, 92 memory, 93 communication unit, 94 input / output unit , 95 bus, 100 air conditioner, 1000 air conditioning system, Ce ceiling, Fr floor, NW network, W1, W2, W3, W4 wall.

Claims

An air conditioner that circulates refrigerant and cools a specific space,
It is equipped with a server device that controls the air conditioner.
The air conditioner is
A compressor placed outside the specific space and
The first heat exchanger arranged outside the specific space and
Expansion valve and
The second heat exchanger arranged in the specific space and
Including the sensor unit arranged in the specific space
The refrigerant circulates in the order of the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger.
The server device controls the air conditioner by using the physical quantity of the specific space measured by each of the sensor units and the operation data of the air conditioner.
The sensor unit includes a plurality of first sensors and a plurality of second sensors.
Each of the plurality of first sensors is arranged along the wall of the specific space, and measures the temperature of the first region of the specific space.
Each of the plurality of second sensors is arranged on the ceiling of the specific space, and measures the temperature of the second region of the specific space.
An air conditioning system in which the first region is narrower than the second region and is an region outside the second region.
The air conditioning system according to claim 1, wherein the server device analyzes the airflow distribution in the specific space using the physical quantity and the operation data, and controls the air conditioner using the analysis result of the airflow distribution.
The server device predicts the operating rate of the air conditioner and the electric cost per unit time of the air conditioner using the analysis result of the air flow distribution, and uses the predicted operating rate and the predicted electric cost. The air conditioning system according to claim 2, which controls the air conditioner.
The air conditioning system according to claim 2 or 3, wherein the server device transmits a target evaporation temperature predicted to maximize the efficiency of the air conditioner to the air conditioner using the analysis result of the air flow distribution.
The server device identifies the highest temperature in the specific space by using the analysis result of the airflow distribution, and when the highest temperature is lower than the allowable temperature of the specific space, the target temperature of the specific space is set to the highest temperature. When the temperature of the specific space is set higher than the target temperature of the specific space when the temperature is measured and the maximum temperature is higher than the allowable temperature, the target temperature of the specific space is set to the target temperature of the specific space when the maximum temperature is measured. The air conditioning system according to any one of claims 2 to 4, which is set lower than the target temperature of the specific space.
Further equipped with a terminal device connected to the server device,
The air conditioning system according to any one of claims 2 to 5, wherein the terminal device superimposes and displays the airflow distribution on a three-dimensional image of the specific space.
A wind direction adjusting unit that adjusts the blowing direction from the second heat exchanger to the specific space, and
Further including a fan that blows air from the second heat exchanger to the specific space.
The server device uses the physical quantity and the operation data, the position and temperature of the article placed in the specific space, and the presence or absence of a human being in the specific space so that the temperature becomes uniform in the specific space. The air conditioning system according to any one of claims 1 to 5, which controls the blowing direction and the rotation speed of the fan.
The server device uses the physical quantity and the operation data to deteriorate the performance of the air conditioner due to the frost generated in the second heat exchanger and to start the defrosting operation of the air conditioner. The defrosting operation is performed at the timing when the electric cost required for the defrosting operation is predicted to be minimized by analyzing the temperature rise of the above, or at the timing when the temperature rise of the specific space is predicted to be minimized in the defrosting operation. The air conditioning system according to any one of claims 1 to 6, wherein the air conditioning system is started.
Each of the plurality of first sensors measures the temperature and humidity of the first region.
The air conditioning system according to any one of claims 1 to 7, wherein each of the plurality of second sensors includes an infrared sensor.