JP7518403B2 - Remote control device, heat stroke prevention control method, and air conditioning system - Google Patents

Description

This disclosure relates to a remote control device, a heat stroke prevention control method, and an air conditioning system.

It is known that heatstroke can occur even indoors. Heatstroke occurs when body temperature rises and the body's ability to regulate itself stops working, resulting in a variety of symptoms such as elevated body temperature, dizziness, convulsions, and headaches.

To reduce the risk of developing heatstroke, a technology is known that calculates a "heat index (WBGT)" using a temperature sensor and a humidity sensor installed in an indoor unit near the ceiling, and automatically operates the air conditioning when the alert level is reached (see, for example, Patent Document 1).

JP 2014-66432 A

However, with conventional technology, there was a risk that heatstroke countermeasure control to reduce the risk of heatstroke might not be performed appropriately. For example, heatstroke countermeasure control might be performed even when the risk of heatstroke was not particularly high.

The purpose of this disclosure is to provide technology that enables appropriate control of heatstroke prevention measures.

In a first aspect of the present disclosure, an air conditioning system includes:
An air conditioning system having an indoor unit and a remote control device,
a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
A heat stroke countermeasure control is performed according to the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position different from that of the first temperature sensor.

According to the first aspect of the present disclosure, heat stroke prevention control can be performed appropriately.

An air conditioning system according to a second aspect of the present disclosure is the air conditioning system according to the first aspect,
Even if the heat stroke risk information satisfies the judgment criterion for performing the heat stroke countermeasure control, the control unit does not perform the heat stroke countermeasure control if the second temperature is less than a threshold value.

An air conditioning system according to a third aspect of the present disclosure, comprising:
The heat stroke countermeasure control is to display a warning on the display unit.

An air conditioning system according to a fourth aspect of the present disclosure is the air conditioning system according to the third aspect,
The display unit is included in the remote control device.

An air conditioning system in a fifth aspect of the present disclosure is the air conditioning system of the first or second aspect,
The heat stroke countermeasure control is an operation for lowering the temperature or humidity in the target space.

An air conditioning system in a sixth aspect of the present disclosure is the air conditioning system of the fifth aspect,
If the second temperature is above a threshold value and a moving object is detected in the target space, or if a plan to use the target space is registered in the schedule, the control unit decides to perform operation to lower the temperature or humidity in the target space.

An air conditioning system in a seventh aspect of the present disclosure is the air conditioning system of the first or second aspect,
The control unit determines, based on the first temperature and the humidity, whether the heat stroke risk information is a first risk state or a second risk state having a higher risk of heat stroke than the first risk state;
Determine to perform a first heat stroke countermeasure control when the vehicle is in the first risk state, and not to perform the first heat stroke countermeasure control when the vehicle is in the first risk state and the second temperature is less than a first threshold value;
When the vehicle is in the second risk state, a second heat stroke countermeasure control is performed, and when the vehicle is in the second risk state and the second temperature is less than a second threshold value that is higher than the first threshold value, it is determined that the second heat stroke countermeasure control is not performed.

An air conditioning system according to an eighth aspect of the present disclosure is the air conditioning system according to the seventh aspect,
The first heat stroke countermeasure control is displaying first warning information on the display unit,
The second heat stroke countermeasure control is the display of second warning information, which is different from the first warning information, on the display unit.

An air conditioning system according to a ninth aspect of the present disclosure is the air conditioning system according to the seventh aspect,
The first heat stroke countermeasure control is displaying an alarm on the display unit,
The second heat stroke countermeasure control is an operation for lowering the temperature or humidity in the target space.

An air conditioning system in a tenth aspect of the present disclosure is the air conditioning system of the first to ninth aspects,
The first temperature sensor is provided in the attic, in the indoor unit, or in a ventilation device.

The air conditioning system in an eleventh aspect of the present disclosure is the air conditioning system in any one of the first to tenth aspects, in which the second temperature sensor is provided in the remote control device.

In a twelfth aspect of the present disclosure, an air conditioning system includes:
A heat stroke countermeasure control method performed by an air conditioning system having an indoor unit and a remote control device,
The control unit acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling;
The control unit determines heat stroke risk information based on the first temperature and the humidity,
A heat stroke countermeasure control is performed according to the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position different from that of the first temperature sensor.

According to the twelfth aspect of the present disclosure, heat stroke prevention control can be appropriately performed.

A remote control device according to a thirteenth aspect of the present disclosure includes:
a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
The remote control device performs heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position different from that of the first temperature sensor.

According to the thirteenth aspect of the present disclosure, heat stroke prevention control can be appropriately performed.

We can provide technology that allows appropriate control to prevent heatstroke.

This is a diagram explaining the process flow in which a remote control issues a heat stroke risk alarm as one of the heat stroke countermeasure controls. FIG. 1 is a diagram illustrating an example of a system configuration of an air conditioning system. 1 is an example of an external view of a remote control when viewed from the front (when in use). FIG. 2 is a diagram illustrating an example of a hardware configuration of a remote control control unit. FIG. 2 is an example of a functional block diagram illustrating functions of an indoor unit and a remote control in an air conditioning system, separated into blocks. FIG. 1 is a diagram showing an example of a quick reference table of heat indexes. FIG. 4 is a diagram showing an example of a threshold value A and a threshold value B stored in a threshold value storage unit. 13 is an example of a sequence diagram illustrating a process in which a remote control issues a heatstroke risk warning based on a first temperature, humidity, and a second temperature. 13 is an example of a flowchart illustrating a process in which a judgment unit compares a heat index with a threshold A and a second temperature with a threshold B, and issues a heatstroke risk warning. FIG. FIG. 13 is a diagram showing an example of a display on a remote control that issues a heatstroke risk warning. FIG. 13 is a diagram showing an example of a display on a remote control that issues a heatstroke risk warning. FIG. 13 is a diagram showing an example of a display on a remote control that issues a heatstroke risk warning. FIG. 11 is an example of a functional block diagram for explaining functions of an indoor unit and a remote control in an air conditioning system by dividing the functions into blocks (Example 2). FIG. 4 is a diagram showing an example of a schedule acquired by a schedule acquisition unit; FIG. 13 is a sequence diagram illustrating a process in which the remote controller performs a forced operation based on a first temperature, a humidity, and a second temperature (second embodiment); 13 is an example of a flowchart illustrating a process in which a determination unit compares the heat index with a threshold A, and the second temperature with a threshold B, and further performs forced operation based on the presence or absence of detection of a moving object and a schedule. FIG. 11 is an example of a sequence diagram illustrating a process in which a remote controller performs a forced operation based on a first temperature, a humidity, and a second temperature. FIG. This is a flowchart illustrating the process in which the judgment unit compares the heat index with threshold A, the second temperature with threshold B, and further issues a heatstroke risk warning or performs forced operation based on whether or not a moving object has been detected and the schedule.

Below, an air conditioning system and a heat stroke prevention control method performed by the air conditioning system will be described as an example of a form for implementing the present invention.

<Outline of the operation of the device system>
If the air conditioning is not turned on or the operating settings are not appropriate, there is a risk of heatstroke. For this reason, if the temperature and humidity (hereinafter, relative humidity unless otherwise specified) detected by the indoor unit are judged to meet the warning level, the remote control or other device will sound a heatstroke risk warning. The heatstroke risk warning prompts the user to turn on the air conditioning or warns the user to be careful about heatstroke.

However, indoor units are often installed near the ceiling, and because heat builds up when the unit is not in operation and hot air tends to remain at the top, the temperature sensor in the indoor unit may detect a higher temperature than the lower range where the user is living. This means that there is a risk that the remote control may sound a heatstroke risk alarm in the lower range even in situations where a heatstroke risk alarm is not necessary.

In this disclosure, a temperature sensor provided in a remote control or the like detects the temperature in the low-rise range, and the temperature in the low-rise range is also used to determine whether or not to issue a heatstroke risk warning. For example, even if the heat index based on the temperature and humidity detected by the indoor unit meets the criteria for issuing a heatstroke risk warning, if the temperature in the low-rise range is below the threshold, the remote control will not issue a heatstroke risk warning.

The determination of heat stroke countermeasure control by the air conditioning system will be described with reference to Figure 1. Figure 1 is a diagram explaining the process flow in which the remote control 30 issues a heat stroke risk warning as one of the heat stroke countermeasure controls.

(1) The indoor unit 20 of the air conditioner has a first temperature sensor 22 and a humidity sensor 23 built in. The indoor unit 20 transmits to the remote control 30 the temperature near the ceiling detected by the first temperature sensor 22 (hereinafter referred to as the first temperature) and the humidity detected by the humidity sensor 23.

(2) The remote control 30 has a built-in second temperature sensor 33. The second temperature sensor 33 measures the temperature of the lower floor range where the remote control 30 is installed (hereinafter referred to as the second temperature).

(3) The remote control 30 determines the heat index from the first temperature and humidity.

(4) If the heat index is equal to or greater than threshold A but the second temperature is less than threshold B, the remote control 30 does not issue a heatstroke risk warning. If the heat index is equal to or greater than threshold A and the second temperature is equal to or greater than threshold B, the remote control 30 issues a heatstroke risk warning. When issuing a heatstroke risk warning, the remote control 30 may, for example, display a warning message on the display or display the current room temperature. The remote control 30 may also generate music or sound.

In this way, the remote control 30 of the present disclosure does not determine whether to perform heat stroke countermeasure control, such as issuing a heat stroke risk alert, based on the heat index near the ceiling alone, but also uses the temperature in the lower floor area where the remote control 30 is located to make the determination, thereby making it possible to prevent heat stroke countermeasure control from being performed in situations where heat stroke countermeasure control is not necessary in the lower floor area.

<Terminology>
The heat stroke countermeasure control refers to control for suppressing the risk (onset) of heat stroke. In the present disclosure, the heat stroke countermeasure control is described in the form of issuing a heat stroke risk warning or issuing a forced operation instruction.

Near the ceiling includes both the indoor side of the ceiling and the space above the ceiling. Near the ceiling is any space that is prone to heat buildup. Near the ceiling does not necessarily mean the space right next to the ceiling, but can also include spaces that are away from the ceiling depending on the indoor height, such as in spaces with a high indoor height.

Heatstroke risk information may be any information that is an indicator of the risk of humans or animals suffering from heatstroke. In this disclosure, heatstroke risk information is described using the term heat index, but may also be a discomfort index, etc.

The second temperature sensor is provided at a different location from the first temperature sensor. The second temperature sensor is preferably placed at a height where people live, lower than near the ceiling.

<System configuration example>
2 shows an example of the system configuration of the air conditioning system 100 of the present disclosure. The air conditioning system 100 is a system that realizes air conditioning such as cooling and heating in a target space SP included in a structure such as a house, a building, a factory, a public facility, etc. There may be multiple indoor units 20.

The air conditioning system 100 includes a refrigerant circuit, and performs cooling or heating of the target space SP by circulating refrigerant in the refrigerant circuit to perform a vapor compression refrigeration cycle. The air conditioning system 100 has multiple operating modes including a cooling mode and a heating mode, and performs operation according to the operating mode. Specifically, the air conditioning system 100 performs cooling operation in the cooling mode, and performs heating operation in the heating mode.

The air conditioning system 100 mainly comprises one outdoor unit 10 as a heat source unit, one or more indoor units 20 as utilization units, and a remote control device (hereinafter referred to as "remote control 30") as an input device for inputting commands related to various settings.

In the air conditioning system 100, the outdoor unit 10 and the indoor units 20 are connected by a refrigerant connection pipe (gas connection pipe GP) to form a refrigerant circuit. In addition, in the air conditioning system 100, multiple communication networks (network NW1, network NW2) that function as transmission paths for signals between each unit are constructed. In the air conditioning system 100, the outdoor unit 10, the indoor units 20, and the remote control 30 are connected by a communication network. The network NW2 may be wired or wireless.

Here, the remote control 30 is configured to communicate (near-field wireless communication) with a mobile communication terminal (hereinafter simply referred to as "terminal 110") equipped with a near-field wireless communication function, which is held by a serviceman in charge of work during installation or maintenance of the air conditioning system 100, or by the manager or user of the air conditioning system 100. The remote control 30 inputs commands related to various settings of the air conditioning system 100 by receiving signals transmitted from the terminal 110. The terminal 110 can transmit a temperature (corresponding to a second temperature) measured by itself to the terminal 110.

In this disclosure, the short-range wireless communication between the remote control 30 and the terminal 110 may be NFC (Near Field Communication) or Bluetooth (registered trademark), which uses a frequency of 13.56 MHz.

The indoor unit 20 can communicate with a server device (not shown) via the network NW2. The indoor unit 20 may also communicate with the terminal 110 via the network NW1.

Next, based on FIG. 1, the installation manner of the indoor unit 20 and the remote control 30 in the target space SP will be supplemented. The indoor unit 20 is installed in the target space SP of the facility 1. The indoor unit 20 is a ceiling-embedded type air conditioning indoor unit installed in the ceiling CI of the target space SP. Each indoor unit 20 is installed in the target space SP so that the intake port and exhaust port are exposed from the ceiling CI. Each indoor unit 20 mainly has multiple refrigerant pipes, an indoor heat exchanger, and various valves such as an on-off valve as elements that make up the refrigerant circuit (not shown). Each indoor unit 20 also has an indoor fan that generates an air flow that exchanges heat with the refrigerant in the indoor heat exchanger (not shown).

Each indoor unit 20 also has a filter 25 that removes dust from the air flowing in through the air intake. Each indoor unit 20 also has sensors that detect predetermined values, such as a first temperature sensor 22 that detects the temperature of the target space SP and a humidity sensor 23.

The indoor unit 20 also has an indoor unit control unit 24 that controls the operation of the indoor fan, various valves, and the like within the indoor unit 20. The indoor unit control unit 24 is mounted on a board located within the indoor unit 20. The indoor unit control unit 24 includes general computer components such as a CPU and memory.

The indoor unit control unit 24 also includes a communication module for communicating with the corresponding remote control 30. The indoor unit control unit 24 is electrically connected to the corresponding remote control 30 via the network NW2, and transmits and receives signals to and from each other.

In FIG. 2, the indoor unit 20 has the first temperature sensor 22 and the humidity sensor 23, but the first temperature sensor 22 and the humidity sensor 23 may be placed in the ceiling. Also, in FIG. 2, the indoor unit 20 has the first temperature sensor 22 and the humidity sensor 23, but a ventilation device that does not have a cooling/heating function may have the first temperature sensor 22 and the humidity sensor 23.

Figure 3 is an external view of the remote control 30 as seen from the front (when in use). The remote control 30 is installed in the target space SP of the facility 1.

The remote control 30 is associated with the indoor unit 20 and is installed in the same target space SP as the corresponding indoor unit 20. The remote control 30 is fixed to the side wall SW of the target space SP via a mounting member. The remote control 30 is a so-called wired remote control device, and is electrically connected to the corresponding indoor unit 20 (indoor unit control unit 24) via the network NW2.

The remote control 30 functions as a command input device for inputting commands related to various settings to the air conditioning system 100. The remote control 30 also functions as a display device for displaying various information. The remote control 30 also functions as a command receiving device for receiving the second temperature transmitted from the terminal 110 when inputting the second temperature via the terminal 110. The remote control 30 also functions as a data transmitting device for transmitting requested data to the terminal 110.

The remote control 30 receives commands related to various settings of the corresponding indoor unit 20 or the remote control itself. The various settings made by commands input to the remote control 30 include, for example, operational settings such as the set temperature, operation mode, set air volume, set air direction, and operation schedule, initial settings set at the time of installation or maintenance, settings of the display mode on the display unit 32, and settings related to data transmission from the remote control 30 to the terminal 110.

The remote control 30 mainly has a remote control input unit 31 as an input means, a display unit 32 as a display means, a second temperature sensor 33, a short-range wireless communication unit 34, and a remote control control unit 35 that controls the operation of each unit within the remote control 30.

The remote control 30 is also electrically connected to a power supply unit (not shown) included in the corresponding indoor unit 20 via a power cable (not shown), and is supplied with power from the power supply unit. Note that the manner of power supply to the remote control 30 is not necessarily limited to this, and can be changed as appropriate. For example, the remote control 30 may receive power from another power supply unit (e.g., a commercial power source, etc.) via a power cable (not shown), or may have an independent power supply unit (e.g., a secondary battery, etc.).

<Remote control hardware configuration>
Next, the hardware configuration of the remote control control unit 35 of the remote control 30 will be described with reference to Fig. 4. Fig. 4 is a diagram showing an example of the hardware configuration of the remote control control unit 35. The remote control control unit 35 has a processor 201, a memory 202, an auxiliary storage device 203, an I/F (Interface) device 204, and a communication device 205. The hardware components of the remote control control unit 35 are connected to each other via a bus 207.

The processor 201 has various computing devices such as a CPU (Central Processing Unit). The processor 201 reads various programs onto the memory 202 and executes them. The processor 201 corresponds to the control unit 130 that controls the entire remote control 30.

The memory 202 has a primary storage device such as a ROM (Read Only Memory) or a RAM (Random Access Memory). The processor 201 and the memory 202 form a so-called computer, and the processor 201 executes various programs read onto the memory 202.

The auxiliary storage device 203 stores various programs and various data used when the programs are executed by the processor 201.

The I/F device 204 is a connection device that connects the remote control 30 with the display unit 32 and remote control input unit 31, which are examples of external devices. The display unit 32 is a so-called display device that displays the operation menu and set temperature of the remote control 30. The remote control input unit 31 accepts input of various settings for the remote control 30.

The communication device 205 is a communication device for communicating with the indoor unit 20 via the network NW2.

<About the function>
Next, the functional configuration of each device of the air conditioning system 100 will be described in detail with reference to Fig. 5. Fig. 5 is an example of a functional block diagram that explains the functions of the indoor unit 20 and the remote control 30 in the air conditioning system 100 by dividing them into blocks.

<<Indoor unit>>
The indoor unit 20 has a communication unit 41, a humidity detection unit 42, and a first temperature detection unit 43. Each of these units of the indoor unit 20 is a function or means realized by the processor of the indoor unit control unit 24 executing commands of a program expanded in the memory.

The first temperature detection unit 43 controls the first temperature sensor 22 to detect a first temperature of the air passing through the intake port of the indoor unit 20. The first temperature detection unit 43 only needs to detect the temperature near the ceiling. The first temperature is not limited to being detected when the air conditioner is stopped. The first temperature detection unit 43 automatically detects the first temperature periodically (at intervals of about 1 minute to about 60 minutes), for example.

The humidity detection unit 42 controls the humidity sensor 23 to detect the humidity at the air conditioner intake or around the humidity sensor 23. Humidity is not limited to being detected when the air conditioner is stopped. The humidity detection unit 42 automatically detects humidity periodically (at intervals of about 1 minute to about 60 minutes), for example. It is preferable that the detection timing of the first temperature and humidity is approximately the same. This is because they are used to calculate the relative humidity.

The communication unit 41 communicates with the remote control 30 via the network NW2. In this disclosure, the communication unit 41 transmits the first temperature and humidity to the remote control 30.

<<Remote control>>
The remote control 30 has a communication unit 11, a second temperature detection unit 12, a heat index determination unit 13, a judgment unit 14, an alarm issuance unit 15, and a display control unit 16. Each of these units of the remote control is a function or means realized by any of the components shown in Fig. 4 operating in response to an instruction from the processor 201 in accordance with the program loaded from the auxiliary storage device 203 to the memory 202.

The communication unit 11 communicates with the indoor unit 20 and receives the first temperature and humidity from the indoor unit 20. The communication unit 11 may request the first temperature and humidity from the indoor unit 20, or the first temperature and humidity may be push-transmitted from the indoor unit 20.

The second temperature detection unit 12 controls the second temperature sensor 33 and detects the temperature around the remote control 30 in response to a request from the indoor unit 20, in response to receiving the first temperature and humidity, or periodically (at intervals of about 1 minute to about 60 minutes). The remote control 30 is usually located at a height where people live, so it can detect the temperature felt by the user.

The heat index determination unit 13 determines the heat index using the first temperature and humidity. In the present disclosure, the heat index is used to determine the risk of heat stroke. The calculation formula for the heat index is shown in Equation (1). However, in the present disclosure, the heat index determination unit 13 determines the heat index from the quick reference table in FIG. 6.
Heat index = 0.7 x wet bulb temperature + 0.3 x black globe temperature … (1)
The heat index determination unit 13 may calculate a discomfort index. In this case, the risk of heat stroke is determined based on the discomfort index.

The judgment unit 14 judges whether or not to issue a heat stroke risk warning based on a comparison between the heat index and threshold A, and a comparison between the second temperature and threshold B. Details will be described later. The thresholds A and B referenced by the judgment unit 14 are stored in the threshold memory unit 17. The configuration of the threshold memory unit 17 will be described later with reference to FIG. 7.

When the judgment unit 14 judges that there is a risk of heat stroke, the warning unit 15 issues a heat stroke risk warning. The heat stroke risk warning is, for example, a display of a warning message regarding heat stroke. The warning unit 15 may also issue a warning by adding a sound or the like.

When the display control unit 16 determines that there is a heatstroke risk warning, it displays a warning message on the display unit 32 built into the remote control 30.

<Example of heat stroke prevention control using the heat index>
The heat index (WBGT (Wet Bulb Globe Temperature)) is an index proposed to prevent heatstroke. The heat index indicates the humidity during the day, with a higher number indicating more humidity and discomfort. It is known that the higher the heat index, the higher the risk of heatstroke. Below, we explain how to determine a heatstroke risk warning using the heat index.

With reference to Figure 6, an example of heat stroke prevention control judgment using the heat index will be described. Figure 6 is a heat index quick reference table. First, a judgment method based only on the heat index will be described. In Figure 6, the column headings are humidity, the row headings are first temperatures, and the heat index is arranged in a table in correspondence with the humidity and the first temperature. Because the calculation method for the heat index is fixed as shown in formula (1) above, the humidity and the first temperature can be determined as corresponding values from the quick reference table.

In Fig. 6, the heat index is divided into three levels according to the alert level. The three alert levels correspond to the danger level, high alert level, and alert level based on the heat index, and are called the danger level, high alert level, and alert level, just like the heat index.
- The danger level is a heat index of 31°C or above.
- The strict alert level is when the heat index is between 28°C and 31°C.
- The alert level is when the heat index is between 25°C and 28°C.

When the heat index is 31°C or higher, the judgment unit 14 judges that the judgment criteria for the danger level are met. When the heat index is 28°C or higher and less than 31°C, the judgment unit 14 judges that the judgment criteria for the high alert level are met. When the heat index is 25°C or higher and less than 28°C, the judgment unit 14 judges that the judgment criteria for the alert level are met.

For example, when the heat index meets the danger level or the high alert level, it corresponds to the second risk state, and the issuance of a heatstroke risk warning corresponds to the second heatstroke countermeasure control. When the heat index meets the alert level, it corresponds to the first risk state, and the issuance of a heatstroke risk warning corresponds to the first heatstroke countermeasure control.

If the air conditioning is not operating or is not set appropriately, there is a risk of heatstroke, so the issuance of a heatstroke risk warning is determined regardless of whether the air conditioning is turned off or not.

However, indoor units are often installed near the ceiling, and due to factors such as heat buildup while the unit is not operating and hot air tending to remain at the top, the criteria for a heatstroke risk warning may be met early (leading to the risk of a false alarm). Therefore, the judgment unit 14 relaxes the judgment criteria using the second temperature measured by the remote control 30.

For example, a case will be described where the heat index meets the criteria for judging the danger level. According to FIG. 6, the WBGT estimated value of the heat index that meets the danger level is 31°C. In this case, if the second temperature is lower than 31°C, for example, less than 27°C, the judgment unit 14 judges that a heat stroke risk warning will not be issued even if the heat index is 31°C or higher. This threshold value of 27°C is set as a temperature that is lower than 31°C, which is the WBGT estimated value of the heat index that meets the danger level, and that does not have any uncomfortable region within the comfortable humidity range of 40 to 60%.

The same applies when the heat index meets the criteria for determining the high alert level. According to FIG. 6, the WBGT estimated value of the heat index that meets the high alert level is 28°C. In this case, when the second temperature is lower than 28°C, for example, less than 27°C, the determination unit 14 determines that no heat stroke countermeasure control will be performed even if the heat index is 28°C or higher.

A case will now be described where the heat index meets the criteria for determining the alert level. According to FIG. 6, the WBGT estimated value of the heat index that meets the alert level is 25°C. In this case, if the second temperature is lower than 25°C, i.e., less than 24°C, the determination unit 14 determines that heat stroke countermeasure control will not be performed even if the heat index is 25°C or higher. This threshold value of 24°C may be any temperature that falls outside the alert area range at any humidity, but for practical purposes, it is set to a value 1 to 2°C lower than 25°C, which is the WBGT estimated value of the heat index.

Figure 7 shows an example of threshold A and threshold B stored in the threshold memory unit 17. As shown in Figure 7, the WBGT estimated value and the threshold to be compared with the second temperature are set in correspondence with the alert level, high alert level, and danger level. The WBGT estimated value is threshold A, and the threshold to be compared with the second temperature is threshold B.

The judgment unit 14 first compares the heat index with threshold A, and then compares the second temperature with threshold B, which is associated with the alert level at which the heat index is equal to or greater than threshold A, to judge whether to issue a heatstroke risk alert. For the sake of explanation, the thresholds A (31, 28, 25) corresponding to the alert levels are referred to as threshold A1 (31), threshold A2 (28), and threshold A3 (25). The thresholds B (27, 27, 24) are referred to as threshold B1 (27), threshold B2 (27), and threshold B3 (24). Threshold B1 or threshold B2 is an example of a second threshold, and threshold B3 is an example of a first threshold.

<Operations and Processing>
Next, a process in which the remote control 30 issues a heat stroke risk warning will be described with reference to Fig. 8. Fig. 8 is a sequence diagram illustrating a process in which the remote control 30 issues a heat stroke risk warning based on the first temperature, the humidity, and the second temperature.

S1: For example, periodically, the first temperature detection unit 43 of the indoor unit 20 detects the first temperature near the ceiling, and the humidity detection unit 42 detects the humidity near the ceiling.

S2: The communication unit 41 of the indoor unit 20 transmits the first temperature and humidity to the remote control 30.

S3: The communication unit 11 of the remote control 30 receives the first temperature and humidity. The second temperature detection unit 12 detects the second temperature in response to receiving the first temperature and humidity, or periodically. The remote control 30 may receive the second temperature from the terminal 110 in the room via NFC or the like.

S4: Next, the heat index determination unit 13 compares the first temperature and humidity with the quick reference table in Figure 6 to determine the heat index.

S5: The judgment unit 14 compares the heat index with threshold A and the second temperature with threshold B, and judges whether to issue a heatstroke risk warning. Details of this judgment are explained in Figure 9.

S6: If the judgment unit 14 judges that a heatstroke risk warning should be issued, the warning issuing unit 15 issues a heatstroke risk warning. In response to the issuance of the heatstroke risk warning, the display control unit 16 displays a warning message and the current room temperature. Display examples of the remote control 30 issuing a heatstroke risk warning are shown in Figures 10A to 10C.

The heatstroke risk warning may be displayed not by the remote control 30, or by the indoor unit 20 together with the remote control 30. In this case, the remote control 30 may request the indoor unit 20 to issue a heatstroke risk warning, or the decision in step S5 may be made by the indoor unit 20 (the remote control 30 may transmit the second temperature to the indoor unit 20).

Figure 9 is a flowchart illustrating the process in which the determination unit 14 compares the heat index with threshold A and the second temperature with threshold B, and issues a heatstroke risk warning.

First, the judgment unit 14 judges whether the heat index is equal to or greater than a threshold A1 (e.g., 31°C) (S101). If the judgment in step S101 is Yes, the judgment unit 14 judges whether the second temperature is equal to or greater than a threshold B1 (e.g., 27°C) (S102).

If the judgment in step S102 is Yes, the judgment unit 14 determines to issue a dangerous level heatstroke risk warning (S103).

If the determination in step S101 is No, the determination unit 14 determines whether the heat index is equal to or greater than a threshold A2 (e.g., 28°C) (S104). If the determination in step S104 is Yes, the determination unit 14 determines whether the second temperature is equal to or greater than a threshold B2 (e.g., 27°C) (S105).

If the determination in step S105 is Yes, the determination unit 14 determines to issue a heatstroke risk warning of a high alert level (S106).

If the determination in step S104 is No, the determination unit 14 determines whether the heat index is equal to or greater than a threshold A3 (e.g., 25°C) (S107). If the determination in step S107 is Yes, the determination unit 14 determines whether the second temperature is equal to or greater than a threshold B3 (e.g., 24°C) (S108).

If the judgment in step S108 is Yes, the judgment unit 14 determines to issue a heatstroke risk warning of an alert level (S109).

When the alarm issuing unit 15 issues a heatstroke risk alarm, the judgment unit 14 judges the conditions for stopping the alarm. When a dangerous level heatstroke risk alarm is issued, the judgment unit 14 judges whether the second temperature is smaller than the threshold value B1-α (S110). α is a constant (e.g., 1 to 3°C) to prevent hunting in the decision on whether to issue an alarm.

If the determination in step S110 is Yes, the determination unit 14 determines to stop issuing a heatstroke risk warning. The display control unit 16 ends the display of the warning message and the current room temperature (S111).

When a high-alert level heatstroke risk warning is issued, the judgment unit 14 judges whether the second temperature is lower than the threshold value B2-β (S112). β is a constant (e.g., 1 to 3°C) to prevent hunting in the judgment of whether to issue a warning.

If the determination in step S112 is Yes, the determination unit 14 determines to stop issuing a heatstroke risk warning. The display control unit 16 ends the display of the warning message and the current room temperature (S113).

When a heat stroke risk warning of a warning level is issued, the judgment unit 14 judges whether the second temperature is smaller than the threshold value B3-γ (S114). γ is a constant (e.g., 1 to 3°C) to prevent hunting in the judgment of whether to issue the warning.

If the determination in step S114 is Yes, the determination unit 14 determines to stop issuing a heatstroke risk warning. The display control unit 16 ends the display of the warning message and the current room temperature (S115).

The heatstroke risk warning can also be stopped by the user disabling the warning function using the remote control 30.

The process in FIG. 9 is executed regardless of whether the indoor unit 20 is stopped or not. However, the process in FIG. 9 may be executed only when the indoor unit 20 is stopped. This is because heat is likely to build up near the ceiling when the indoor unit 20 is stopped. Whether the indoor unit 20 is stopped or not can be determined by the remote control 30 itself accepting an operation to start operation. Alternatively, the remote control 30 can determine whether the indoor unit 20 is stopped or not by receiving the operating status of the fan from the indoor unit 20.

<Example of a remote control display that issues a heatstroke risk warning>
10A to 10C are examples of displays on the remote control 30 that issue a heatstroke risk warning. Fig. 10A (a) and (b) show a heatstroke risk warning at a danger level, Fig. 10B (a) and (b) show a heatstroke risk warning at a high alert level, and Fig. 10C (a) and (b) show a heatstroke risk warning at an alert level.

As shown in FIG. 10A(a), in the case of a dangerous level heatstroke risk warning, the display control unit 16 displays the backlight for a certain period of time and displays a warning message 301 saying "Risk of heatstroke." The user can understand that there is a risk of heatstroke. As shown in FIG. 10A(b), the display control unit 16 switches the warning message to a current room temperature display 302 at regular intervals. The current room temperature makes it easier for the user to decide whether or not to start cooling operation. The remote control 30 may display the humidity transmitted by the indoor unit 20. Furthermore, by changing the display at regular intervals, the user can easily notice that a heatstroke risk warning has been issued.

As shown in FIG. 10B(a), in the case of a high-alert level heatstroke risk warning, the display control unit 16 displays the backlight for a certain period of time and displays a warning message 303 saying "Possibility of heatstroke." The user can understand that there is a possibility of heatstroke. The room temperature display 304 shown in FIG. 10B(b) may be the same as that in FIG. 10A(b).

As shown in FIG. 10C(a), in the case of a heat stroke risk warning at the alert level, the display control unit 16 displays the backlight for a certain period of time and displays a warning message 305 saying "Be careful of heat stroke." The user can understand that they should be careful of heat stroke. The room temperature display 306 shown in FIG. 10C(b) may be the same as that in FIG. 10A(b).

The alarm issuing unit 15 may also notify the terminal 110 carried by the user of the heatstroke risk alarm. In this case, an application is installed on the terminal 110, and the application is registered in the server device as the notification destination of the indoor unit 20. The heatstroke risk alarm sent by the alarm issuing unit 15 of the remote control 30 is sent to the terminal 110 via the server device.

Furthermore, Figures 10A and 10B correspond to the display of the second alarm information, and Figure 10C corresponds to the display of the first alarm information.

<Major Effects>
The remote control 30 of the present disclosure does not determine whether to issue a heatstroke risk warning based solely on the heat index near the ceiling, but also uses the temperature in the low-rise range to make the decision, thereby preventing the issuance of a heatstroke risk warning in situations where it is not necessary to issue a heatstroke risk warning in the low-rise range.

In this embodiment, a remote control 30 that forcibly starts air conditioning as heat stroke countermeasure control will be described. In this embodiment, air conditioning is forcibly started when the heat index is equal to or greater than threshold A and the second temperature is equal to or greater than threshold B. In this embodiment, the forced air conditioning that is executed when the heat index meets the danger level or the high alert level corresponds to the second heat stroke countermeasure control, and the forced air conditioning that is executed when the heat index meets the alert level corresponds to the first heat stroke countermeasure control.

In this embodiment, the installation state of the indoor unit 20 and the remote control 30 in FIG. 1, the system configuration example in FIG. 2, the external view of the remote control 30 in FIG. 3, and the hardware configuration diagram in FIG. 4 described in the above embodiment are explained as being applicable.

Figure 11 is an example of a functional block diagram that explains the functions of the indoor unit 20 and the remote control 30 in the air conditioning system 100 by dividing them into blocks. In the explanation of Figure 11, components with the same reference numerals as those in Figure 5 perform similar functions, so in some cases only the main components of this embodiment will be explained.

<<Indoor unit>>
5, the indoor unit 20 has a moving object detection unit 44 and a schedule acquisition unit 45. The moving object detection unit 44 detects objects (e.g., people and animals) moving in the target space SP. The moving object detection unit 44 may be a human sensor that detects infrared rays, or a camera that periodically repeats shooting and detects the presence of a moving object based on the difference between the images.

When the target space SP is reserved for use, the schedule acquisition unit 45 acquires a schedule related to the reservation of the target space SP from a schedule management server (not shown). For example, the schedule acquisition unit 45 acquires a schedule in which the target space SP is directly reserved, or the schedule of one or more users who have registered the time period during which the target space SP will be used.

Figure 12 is an example of a schedule acquired by the schedule acquisition unit 45. Figure 12 shows the schedule for each conference room when the conference room is directly reserved. As shown in Figure 12, the participants who will hold the conference, the agenda of the conference, the start date and time, and the end date and time of the conference are registered in association with the conference room. The conference room corresponds to the target space SP. The start date and time of the conference becomes the reference for the timing at which the remote control 30 starts forced operation of the indoor unit 20.

<<Remote control>>
Returning to Fig. 11, the remote control 30 has an operation unit 18 in comparison with Fig. 5. The operation unit 18 performs an operation to lower the indoor temperature or humidity, for example, even without a user's operation to start the operation. The specific set temperature and set humidity may be, for example, a temperature and humidity at which a heat stroke risk warning or forced operation is not performed. The operation unit 18 may perform forced operation at different temperatures and humidity depending on the danger level, the high alert level, and the alert level.

<Operations and Processing>
Next, a process of the remote control 30 performing a forced operation will be described with reference to Fig. 13. Fig. 13 is a sequence diagram illustrating a process of the remote control 30 performing a forced operation based on the first temperature, humidity, and second temperature.

S21: For example, periodically, the first temperature detection unit 43 of the indoor unit 20 detects the first temperature near the ceiling, and the humidity detection unit 42 detects the humidity near the ceiling. In addition, the schedule acquisition unit 45 acquires a schedule related to reservations for the target space SP from the schedule management server.

S22: The communication unit 41 of the indoor unit 20 transmits the first temperature, humidity, schedule, and the presence or absence of moving objects to the remote control 30.

S23: The communication unit 11 of the remote control 30 receives the first temperature, humidity, and schedule. The second temperature detection unit 12 detects the second temperature in response to receiving these, or periodically. The remote control 30 may receive the second temperature from the terminal 110 in the room via NFC or the like.

S24: Next, the heat index determination unit 13 compares the first temperature and humidity with the quick reference table in Figure 6 to determine the heat index.

S25: The judgment unit 14 compares the heat index with threshold A, and the second temperature with threshold B, and judges whether to perform forced operation. The judgment unit 14 further judges whether to perform forced operation based on the presence or absence of detection of a moving object and the schedule. The details of this judgment are explained in FIG. 14.

S26: If the judgment unit 14 judges that forced operation is to be performed, the operation unit 18 starts an operation to lower the temperature or humidity.

S27: The communication unit 11 of the remote control 30 requests the indoor unit 20 to start operation along with the danger level, the high alert level, and the set temperature and humidity according to the alert level. As an example, the set temperature for the danger level is threshold B-α, the set humidity is 40%, the set temperature for the high alert level is threshold B-β, the set humidity is none, the set temperature for the alert level is none, and the set humidity is a dehumidification request with no humidity set (a comfortable humidity may be set).

Figure 14 is a flow chart illustrating the process in which the determination unit 14 compares the heat index with threshold A, the second temperature with threshold B, and further performs forced operation based on the presence or absence of detection of a moving object and the schedule. The explanation of Figure 14 will mainly focus on the differences from Figure 9. Steps S201 to S206 may be the same as steps S101, S102, S104, S105, S107, and S108 in Figure 9.

The threshold value A compared to the heat index and the threshold value B compared to the second temperature may be the same for the heatstroke risk warning and the forced operation. However, since the forced operation is a control that operates the air conditioner without the user's consent, in the forced operation, the threshold value A compared to the heat index and the threshold value B compared to the second temperature may be determined so that it is more difficult to determine whether to start operation than in the heatstroke risk warning.

Next, in step S207, the judgment unit 14 judges whether a moving object has been detected. The judgment unit 14 queries the indoor unit 20 via the communication unit 11 as to whether there is a moving object. The indoor unit 20 may detect the presence or absence of a moving object. If a moving object is detected, the judgment unit 14 judges to perform forced operation. If no moving object is detected, the judgment unit 14 judges whether a plan (reservation) to use the target space SP within a certain period of time from the present is registered in the schedule. The certain period of time may be the time required to lower the temperature and humidity of the target space SP to a comfortable range. The certain period of time is, for example, about 10 to 15 minutes.

If the determination in step S207 is Yes, the determination unit 14 determines that, following step S202, driving corresponding to the danger level will be started (S208). If the determination in step S207 is Yes, the determination unit 14 determines that, following step S204, driving corresponding to the high alert level will be started (S209). If the determination in step S207 is Yes, the determination unit 14 determines that, following step S206, driving corresponding to the alert level will be started (S210).

The decision to end operation (S211 to S216) may be the same as steps S110 to S115 in FIG. 9. If the conditions for deciding to end operation (S211, S213, S215) are met, the decision unit 14 decides to end the forced operation (S212, S214, S216).

The process in FIG. 14 is executed regardless of whether the indoor unit 20 is stopped. However, the process in FIG. 14 may be executed only when the indoor unit 20 is stopped.

<Major Effects>
The remote control 30 of the present disclosure does not determine whether to perform forced operation based solely on the heat index near the ceiling, but also uses the temperature in the low-rise range to make the determination, thereby preventing forced operation in situations where forced operation is not necessary in the low-rise range.

In this embodiment, a remote control 30 is described that switches between issuing a heatstroke risk warning and forcibly controlling air conditioning as heatstroke countermeasure control according to the second temperature. In this embodiment, when the heat index meets the danger level or the high alert level, the forced air conditioning corresponds to the second heatstroke countermeasure control, and when the heat index meets the alert level, issuing a heatstroke risk warning corresponds to the first heatstroke countermeasure control.

In this embodiment, the functional block diagram of FIG. 11 described in the second embodiment will be used for explanation.
<Operations and Processing>
15 is a sequence diagram for explaining the process of the remote control 30 performing forced operation based on the first temperature, humidity, and second temperature. First, steps S31 to S34 may be similar to steps S21 to S24 in FIG.

S35: The judgment unit 14 compares the heat index with threshold A, and the second temperature with threshold B, and judges whether to issue a heatstroke risk warning or perform forced operation based on the presence or absence of a moving object and the schedule. The details of this judgment are explained in FIG. 16.

S36: If the judgment unit 14 judges that forced operation is to be performed, the operation unit 18 starts an operation to lower the temperature or humidity. The processing of step S37 may be the same as step S27 in FIG. 13.

S38: If the judgment unit 14 judges that a heatstroke risk warning should be issued, the warning issuing unit 15 issues a heatstroke risk warning. This process may be the same as step S6 in FIG. 8.

Figure 16 is a flow chart diagram explaining the process in which the judgment unit 14 compares the heat index with threshold A, the second temperature with threshold B, and further issues a heatstroke risk warning or performs forced operation based on the presence or absence of detection of a moving object and the schedule. The explanation of Figure 16 will mainly explain the differences from Figure 14.

In FIG. 16, if the second temperature is equal to or greater than the threshold value B1 (S302), or equal to or greater than the threshold value B2 (S304), the judgment unit 14 judges to perform forced operation (S308, S309) after detecting a moving object and making a schedule judgment (S307).

On the other hand, if the second temperature is equal to or higher than threshold value B3 (S306), the judgment unit 14 judges that a heatstroke risk warning should be issued (S310).

The decision to end operation (S311 to S314) may be the same as steps S211 to S214 in FIG. 14. The decision to end issuance of a heatstroke risk warning (S315, S316) may be the same as steps S114, S115 in FIG. 9.

In FIG. 16, when the second temperature is equal to or greater than threshold B2 (S304), a heatstroke risk warning may be issued instead of forced operation. Alternatively, when the second temperature is equal to or greater than threshold B1 (S302) or when the second temperature is equal to or greater than threshold B2 (S304), a heatstroke risk warning may be issued, and when the second temperature is equal to or greater than threshold B3 (S306), forced operation may be performed.

<Major Effects>
The remote control 30 of the present disclosure can switch between performing forced operation and issuing a heat stroke risk warning according to the second temperature. For example, if the second temperature meets the danger level or high alert level of the heat index, the room temperature of the target space can be lowered early, and if the second temperature only meets the alert level of the heat index, power consumption can be reduced.

<Other application examples>
The above describes the best mode for carrying out the present invention using examples, but the present invention is not limited to these examples in any way, and various modifications and substitutions can be made within the scope that does not deviate from the gist of the present invention.

For example, the remote control 30 may perform both the issuance of a heatstroke risk warning as in Example 1 and the forced operation as in Example 2.

In addition, in the first and second embodiments, the remote control 30 determines whether to perform heat stroke countermeasure control, but this determination may be made by the indoor unit 20. In this case, the indoor unit 20 receives the second temperature from the remote control 30, threshold value A, and threshold value B, and calculates the heat index. Therefore, the indoor unit 20 can determine whether to perform heat stroke countermeasure control in the same way as the remote control 30.

Further, in the present disclosure, attention is focused on the fact that the temperature differs in the vertical direction of the target space SP, but the technology of the present disclosure can also be applied to a target space SP in which the temperature differs in the horizontal direction.
In addition, in the present disclosure, whether to carry out heat stroke prevention control is determined based on the heat index and the second temperature value, but an alarm may not be issued during heating operation, but may be permitted to be issued during fan operation, cooling operation, dehumidification operation, or ventilation operation.

In addition, in the first and second embodiments, the remote control 30 determines whether to perform heat stroke countermeasure control, but this determination may be made by a server device on the network. In this case, the indoor unit 20 transmits the first temperature, humidity, and second temperature to the server device, and receives the determination result from the server device. Thresholds A and B are preset in the server device.

The configuration examples in FIG. 5 and the like are divided according to the main functions to make it easier to understand the processing by the indoor unit 20 and the remote control 30. The method of dividing the processing units or the names of the processing units does not limit the present invention. The processing by the indoor unit 20 and the remote control 30 can be divided into even more processing units depending on the processing content. Also, it can be divided so that one processing unit includes even more processes.

Each of the functions of the present disclosure described above can be realized not only by software processing through the execution of a program, but also by one or more processing circuits. Here, the "processing circuit" in this specification includes a processor programmed to execute each function by software, such as a processor implemented by an electronic circuit, an ASIC (Application Specific Integrated Circuit), a DSP (Digital Signal Processor), an FPGA (Field Programmable Gate Array), and devices such as conventional circuit modules designed to execute each of the functions described above.

20 Indoor unit 30 Remote control 100 Air conditioning system

Claims (16)

An air conditioning system having an indoor unit and a remote control device,
a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit is an air conditioning system that does not perform heat stroke countermeasure control if the second temperature is below a threshold value even if the heat stroke risk information satisfies a judgment criterion for performing the heat stroke countermeasure control . An air conditioning system having an indoor unit and a remote control device,
a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The heat stroke prevention control is an air conditioning system in which an alarm is displayed on a display unit . 3. The air conditioning system according to claim 2 , wherein the display unit is provided in the remote control device. The air conditioning system according to claim 1 , wherein the heat stroke countermeasure control is an operation for lowering a temperature or humidity in a target space. The air conditioning system of claim 4, wherein the control unit determines to perform an operation to lower the temperature or humidity in the target space when the second temperature is above a threshold value and a moving object is detected in the target space, or when a plan to use the target space is registered in the schedule. An air conditioning system having an indoor unit and a remote control device,
a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit determines, based on the first temperature and the humidity, whether the heat stroke risk information is a first risk state or a second risk state having a higher risk of heat stroke than the first risk state;
Determine to perform a first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is equal to or higher than a first threshold value, and to not execute the first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is less than a first threshold value;
An air conditioning system that performs second heatstroke countermeasure control when the second risk state is in the second temperature range or higher than a second threshold value that is higher than the first threshold value, and that decides not to perform the second heatstroke countermeasure control when the second risk state is in the second temperature range or lower than the second threshold value . The first heat stroke countermeasure control is displaying first warning information on a display unit,
The air conditioning system according to claim 6 , wherein the second heat stroke countermeasure control is a display of second warning information different from the first warning information on a display unit. The first heat stroke countermeasure control is displaying an alarm on a display unit,
The air conditioning system according to claim 6 , wherein the second heat stroke countermeasure control is an operation for lowering a temperature or humidity in a target space. The air conditioning system according to claim 1, wherein the first temperature sensor is provided in the ceiling, the indoor unit, or a ventilation device. The air conditioning system according to claim 1, wherein the second temperature sensor is provided in the remote control device. A heat stroke prevention control method performed by a remote control device, comprising:
The control unit acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling;
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit does not perform the heatstroke countermeasure control if the second temperature is below a threshold value even if the heatstroke risk information satisfies a judgment criterion for performing the heatstroke countermeasure control . A heat stroke prevention control method performed by a remote control device, comprising:
The control unit acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling;
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The heat stroke countermeasure control is a heat stroke countermeasure control method in which an alarm is displayed on a display unit . A heat stroke prevention control method performed by a remote control device, comprising:
The control unit acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling;
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit determines, based on the first temperature and the humidity, whether the heat stroke risk information is a first risk state or a second risk state having a higher risk of heat stroke than the first risk state;
Determine to perform a first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is equal to or higher than a first threshold value, and to not execute the first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is less than a first threshold value;
A heatstroke countermeasure control method which determines to perform a second heatstroke countermeasure control when the second risk state is reached and the second temperature is equal to or higher than a second threshold value that is higher than a first threshold value, and not to perform the second heatstroke countermeasure control when the second risk state is reached and the second temperature is lower than the second threshold value . a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit is a remote control device that does not perform the heat stroke countermeasure control if the second temperature is below a threshold value even if the heat stroke risk information satisfies the judgment criterion for performing the heat stroke countermeasure control . a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The heat stroke countermeasure control is a remote control device that displays an alarm on a display unit . a control unit that acquires a first temperature detected by a first temperature sensor provided near the ceiling and a humidity detected by a humidity sensor provided near the ceiling,
The control unit determines heat stroke risk information based on the first temperature and the humidity,
performing heat stroke countermeasure control in accordance with the heat stroke risk information and a second temperature measured by a second temperature sensor provided at a position lower than near the ceiling ;
The control unit determines, based on the first temperature and the humidity, whether the heat stroke risk information is a first risk state or a second risk state having a higher risk of heat stroke than the first risk state;
Determine to perform a first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is equal to or higher than a first threshold value, and to not execute the first heat stroke countermeasure control when the first risk state is in the first risk state and the second temperature is less than a first threshold value;
A remote control device that performs a second heatstroke countermeasure control when the second risk state is reached and the second temperature is equal to or greater than a second threshold value that is higher than the first threshold value, and that decides not to perform the second heatstroke countermeasure control when the second risk state is reached and the second temperature is less than the second threshold value .

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