JP6141111B2 - Air conditioning system - Google Patents

Description

  According to the present invention, an air-conditioned space is divided into a plurality of air-conditioning areas, and an air-conditioning device for air-conditioning the air-conditioning area is provided for each air-conditioning area, and a plurality of seating chairs are provided in each air-conditioning area. The present invention relates to an air conditioning system provided with a control means capable of controlling the operating state of.

As a conventional air-conditioning system, Patent Document 1 discloses that a room as an air-conditioned space is divided into a plurality of air-conditioning areas, each of which is provided with a human sensor and a temperature detecting means, and the human sensor detects the presence of a person. An air conditioning system that controls an air conditioner provided in each air conditioning area based on a detection result of a temperature detecting means close to the detected location is disclosed. In this air conditioning system, the detection operation of the human sensor is primarily to check whether there is a person in the air conditioning area, and performs air conditioning based on the detection result of the human sensor. The detection result of the detection means is used to realize a temperature environment in which the temperature of the air-conditioning area is comfortable for a person.
Further, Patent Document 2 includes a chair provided with a pressure sensor in a seating portion in a room as an air-conditioned space. When pressure is detected by the pressure sensor, it is determined that a person is seated on the chair. An air conditioning system that operates an air conditioner provided in a room is disclosed. The role of the pressure sensor in Patent Document 2 is substantially the same as the role of the human sensor in Patent Document 1, and as long as the pressure sensor detects pressure, a person is sitting on the seat. Air conditioning is performed.
Further, Patent Document 3 includes a seat provided with temperature detecting means for detecting a human body temperature in a seating portion in a car as an air-conditioned space, and conditioned air can be blown out from the surface of the seating portion. An air conditioning system is disclosed in which an air conditioner is provided and the surface of the seating portion is air-conditioned in a comfortable state by the air conditioner for each seat according to the body temperature of the person detected by the temperature detecting means.

JP 2011-174702 A Japanese Utility Model Publication No. 6-52344 JP 2012-126358 A

However, in the air conditioning system disclosed in Patent Document 1, even if a person has just passed through the air conditioning area, the human sensor may determine that a person is present and control the air conditioner.
Further, in the air conditioning system disclosed in Patent Document 2, even when a load such as a bag is placed on a chair equipped with a pressure sensor, the air conditioner operates as if a person is sitting on the chair. The area cannot be properly air-conditioned according to the number of people in the area.
In the air conditioning system disclosed in Patent Document 3, although the surface of the seating portion of each chair can be air-conditioned in a comfortable state, the air conditioner provided corresponding to each chair is independently controlled. Therefore, in this air conditioning system, a plurality of chairs are provided, and it is not possible to appropriately perform air conditioning in an air conditioning area in which various states where different numbers of people are seated or not seated occur.

  The present invention has been made paying attention to this point, and the purpose thereof is to perform appropriate air conditioning for each air-conditioned area according to the state of the person who is truly seated for each air-conditioned area of the air-conditioned space. It is to provide an air conditioning system.

In order to achieve this object, the first characteristic configuration of the air conditioning system according to the present invention is:
The air-conditioned space is divided into a plurality of air-conditioning areas, and air-conditioning devices for air-conditioning the air-conditioning areas are provided for each air-conditioning area, and a plurality of seating chairs are provided in each air-conditioning area, and the operating state of the air-conditioning device In an air conditioning system equipped with a control means capable of controlling
The control means is configured to control the operation of the air conditioner according to a seating rate that is a ratio of the number of chairs in a seated state in which a person is seated with respect to the total number of chairs arranged in the air conditioning area. The means determines the seating state when the presence of the seating body is detected based on the detection result of the seating body detection means, obtains a temporary seating rate as the seating rate, and calculates the temporary seating rate. In response, the air conditioner is operated and controlled to air-condition the air-conditioning area,
The control means relates to a chair in which the seating body is detected by the seating body detection means in a state where the air-conditioning area is air-conditioned by operating the air conditioner according to the seating rate, and detected by the temperature detection means. When the seating portion temperature is within a preset seating determination temperature range, the seating state is determined and a true seating rate is obtained as the seating rate, and then the seating rate is determined according to the true seating rate. The point is to control the operating state of the air conditioner .

According to the first characteristic configuration of the air conditioning system according to the present invention, the air conditioning of each air conditioning area in the air conditioning system is the operation control for the air conditioning device provided for each air conditioning area by the control means. The purpose is to perform control based on the number of people who are truly seated in the air-conditioned area. That is, the control means controls the operation of the air conditioner according to the seating rate, which is the ratio of the number of chairs that are truly seated with respect to the total number of chairs arranged in the air conditioning area. Here, “according to the seating rate” means, for example, in the case of a cooling load, since the cooling load increases as the seating rate increases, the operation control is performed to increase the cooling capacity of the air conditioner.
Then, the control means sets the air conditioner on the basis of the detection result of the seat detection means and the detection result of the temperature detection means or the detection result of the temperature detection means detected later than the detection by the seat detection means during air conditioning. Since the operation is controlled, the seating rate is obtained by checking not only the detection result of the seating body detection means but also the seating state of the person based on the detection result of the temperature detection means provided in each seating part. It becomes possible to perform control, and it is possible to realize air conditioning control according to the state of a truly seated person as intended by the present application. Here, when the detection result simultaneously with the detection of the seating body detection unit is used as the detection result detected by the temperature detection unit, it corresponds appropriately when the seating state of the person does not change at each air conditioning control timing. By using the detection result of the temperature detection means that is later than the detection tamming of the seat detection means, the movement of the person (the movement from the non-sitting state to the sitting state, the movement from the sitting state to the non-sitting state) ).

And in this structure, the seating determination temperature range is defined regarding the seating part temperature. In the state where the person is actually sitting on the chair, the temperature of the seating portion of the chair is a temperature close to the body temperature of the person, so that the temperature has a certain range corresponding to the state where the person is sitting in advance. A certain temperature range (the seating determination temperature range of the present application) can be set. On the other hand, in a normal air-conditioning state, when a person is not seated, the temperature of the seating portion is a temperature range lower than the seating determination temperature range in the air-conditioned room.
Therefore, in this feature configuration, when the seat temperature detected by the temperature detecting means is within a preset seating determination temperature range for the chair from which the seating body is detected by the seating body detecting means, When it is determined that a person is seated and the seating portion temperature is out of the seating determination temperature range, it is determined that no person is seated on the chair. Such detection of the seating portion temperature can be performed simultaneously with detection by the seating body detection means during air conditioning, thereby confirming a situation in which the seating state has not changed. For example, when the detection result by the seating body detection means changes from the non-sitting state to the seating state, the seating part temperature is detected after the elapse of a certain time delayed by the detection of the seating body detection means, Non-sitting can be confirmed reliably. As a result, a true seating rate can be determined based on both determinations obtained in this way, and rational air conditioning control can be performed according to this highly reliable seating rate.
Therefore, for example, even when a seating rate is derived in a state where a heel or the like is placed on a chair and air conditioning of an air-conditioning area is performed based on such a seating rate, the seating body detection means is detected. It is possible to determine the seating state based on the seating portion temperature detected by the temperature detection means at the time or when the time has elapsed from that time, find the true seating rate, and perform appropriate air conditioning control It becomes possible. In the air-conditioned space, air conditioning can be appropriately performed for each air-conditioned area as described above, so that the air-conditioning load of the entire air-conditioned space can be practically reduced.

The second characteristic configuration of the air conditioning system according to the present invention is in addition to the first characteristic configuration of the air conditioning system,
The control means is in a state where the air-conditioning area is air-conditioned by operating the air-conditioning apparatus, the temporary seating rate becomes zero , and the seating part temperature detected last by the temperature detection means is The air conditioning apparatus is stopped when it falls off from a predetermined seating determination temperature range.

In the 2nd characteristic structure of the said air conditioning system, the detection result of a temperature detection means is utilized rationally.
That is, when the seating body is not detected by all the seating body detection means in the state where the air conditioning area is air-conditioned by operating the air conditioner (that is, when the seating rate is zero) , the seating is performed until now. It is presumed that the person who had been removed removed the seat and detection by all the sitting body detection means was lost. However, accidentally, the detection by the seating body detection means may occur such that the person is away from the detection point and cannot be normally detected. Alternatively, there may be a false detection of the seating body detection means. Therefore, when the seating portion temperature by the temperature detecting means falls from within the preset seating determination temperature range and deviates from the seating determination temperature range, it is determined that the person has truly removed the seat, and the air conditioner is Stop control. As a result, appropriate stop control without excess or deficiency can be executed, and it can be prevented that the stop is inadvertently stopped or the air conditioner works wastefully.

In addition to the first characteristic configuration of the air conditioning system, the third characteristic configuration of the air conditioning system according to the present invention is:
In the state where the air-conditioning area is air-conditioned by controlling the operation of the air conditioner, the control means has a temporary seating rate of zero, and the seating portion temperature detected by the temperature detection means is preset. When the temperature does not rise to the seating determination temperature range, the air conditioner is stopped.

Also in the third characteristic configuration of the air conditioning system, the detection result of the temperature detection means is rationally used. That is, if the seating body is not detected by all the seating body detection means (ie, the seating rate is zero) in a state where the air-conditioning area is air-conditioned by operating the air conditioner, originally unnecessary air conditioning The situation where you are doing is considered. In this case, it is appropriate to perform stop control. However, a situation may occur in which detection by the seating body detection means is not detected normally because it is separated from a human detection point. Alternatively, there may be a false detection of the seating body detection means. Therefore, when the seating section temperature by the temperature detection means does not rise to a temperature within a preset seating determination temperature range, the air conditioner is controlled to stop, assuming that there is no real person or that the seat has been left. . As a result, appropriate stop control without excess or deficiency can be executed, and it can be prevented that the stop is inadvertently stopped or the air conditioner works wastefully.

In addition to any of the first to third characteristic configurations of the air conditioning system, the fourth characteristic configuration of the air conditioning system according to the present invention is:
The control means is detected with respect to a detection result of a temperature detection means provided in a chair determined that the person is seated in an operation control state in which the air conditioner is operation controlled according to the seating rate. The temperature adjustment control for controlling the operation state of the air conditioner is executed based on the temperature change tendency of the seating section temperature so as to reduce the temperature change tendency.
Specifically, when the seating section temperature rises, the air conditioning device performs temperature adjustment control in a direction to lower the temperature of the air conditioning area. When the seating section temperature does not rise, the air conditioning apparatus increases the temperature of the air conditioning area. The temperature adjustment control is performed.

In the fourth characteristic configuration of the air conditioning system, the temperature adjustment control is performed in a situation where the air conditioning control has been appropriately performed so far, for example, when an increase in the outside air temperature or a change in the ventilation state in the room occurs. This situation change is detected as a change tendency of the seating portion temperature by the temperature detecting means, and an excess or deficiency of the air conditioning is to be absorbed by the air conditioning control in a direction of absorbing the change tendency.
Specifically, when the seat temperature detected by the temperature detection means of the chair in the sitting state rises, a temperature lowering process is performed to lower the temperature of the air-conditioning area, and if the seat temperature does not rise, the air conditioning A temperature rise process is performed to raise the temperature of the area.
Thus, it can respond appropriately with respect to the change of an air-conditioning environment by controlling to absorb the change tendency of seating part temperature. Here, “to reduce the temperature change tendency” is a concept that includes not only the control to completely eliminate the temperature change tendency but also the air conditioning control to eliminate the temperature change little by little. is there.

In addition to the fourth characteristic configuration of the air conditioning system, the fifth characteristic configuration of the air conditioning system according to the present invention is:
In the temperature adjustment control, the operating state of the air conditioner is controlled so as to reduce the temperature change tendency based on the temperature change tendency of the average value of the detection results of the temperature detection means.

  According to the 5th characteristic structure of the said air conditioning system, based on the temperature change tendency of the average value of the detection result of the temperature detection means with which the chair determined that the person is seated, the temperature of an air-conditioning area by an air conditioner Is adjusted so as to reduce the temperature change tendency, air conditioning in the air conditioning area can be performed more appropriately.

In addition to any of the fourth to fifth characteristic configurations of the air conditioning system, the sixth characteristic configuration of the air conditioning system according to the present invention includes:
The air conditioner is configured to be switchable between a cooling operation and a heating operation,
The control means includes
As a temperature reduction process that is a control to reduce the temperature change tendency, the air volume of the air conditioner is increased when the air conditioner is in cooling operation, and the air volume is decreased when the air conditioner is in heating operation,
As a temperature increase process that is a control for reducing the temperature change tendency, the air volume is decreased when the air conditioner is in cooling operation, and the air volume is increased when the air conditioner is in heating operation.

  According to the 6th characteristic structure of the said air conditioning system, the temperature of an air-conditioning area can be appropriately controlled by making the driving | running state of an air conditioner into a cooling operation or a heating operation. Moreover, the temperature of an air-conditioning area can be appropriately controlled by increasing / decreasing the air volume of an air conditioner.

In addition to any of the fourth to sixth characteristic configurations of the air conditioning system, the seventh characteristic configuration of the air conditioning system according to the present invention includes:
Wherein when the seating ratio is equal to or higher than a predetermined seating rate, perform the temperature adjustment control, when the seating ratio is less than said predetermined set seating rate, the air conditioner of the air conditioning area It is in the point which performs the air-conditioning capability fall control which lowers the air-conditioning capability.

According to the seventh characteristic configuration of the air conditioning system, when the seating rate is high, the seating rate obtained at present is set as a reliable seating rate, and the air conditioning in the air conditioning area is adjusted to the number of people in the air conditioning area. Perform promptly in the corresponding state.
On the other hand, if the derived seating rate is low, there is a possibility of excessive air conditioning (over air conditioning), so after performing air conditioning as a reliable result of the detection result of the seating body detection means, By reducing the air conditioning capacity in that situation, excessive air conditioning can be avoided. Furthermore, when the number of people is small, each person can be expected to cooperate in reducing the air conditioning load, and the operating cost of the air conditioner can be reduced.

In addition to any of the first to seventh characteristic configurations of the air conditioning system, the eighth characteristic configuration of the air conditioning system according to the present invention is:
A lighting device is provided in each of the plurality of air-conditioning areas,
The control means turns on the lighting device in the air conditioning area when any of the seating body detection means provided in the target air conditioning area detects the seating body, and after the lighting device is turned on, When the seating part temperature detected by the temperature detection means provided in the seated chair does not rise, the lighting device is turned off.

According to the eighth characteristic configuration of the air conditioning system, when any seating body detecting means provided in the target air conditioning area detects the seating body, the lighting device is turned on. The illumination device in the air-conditioning area can be turned on only by sitting on a seating portion of a chair provided in the area.
On the other hand, if the seating unit temperature does not rise after the lighting device is turned on, the lighting device is turned off.If the lighting device is turned on due to a load placed on the seating portion of the chair, the lighting device is turned on. The lighting device can be turned off, and the operating cost of the useless lighting device can be reduced.

In addition to any of the first to eighth characteristic configurations of the air conditioning system, the ninth characteristic configuration of the air conditioning system according to the present invention is:
A lighting device is provided in each of the plurality of air-conditioning areas,
The control means detects the temperature provided in the chair in the air-conditioning area when the illumination device in the air-conditioning area is lit and no seating body is detected in any of the target seat detection means. When the seat temperature detected by the means rises, the lighting state of the lighting device is maintained, and when the temperature does not rise, the lighting device is turned off.

According to the ninth characteristic configuration of the air conditioning system, a person is surely seated in the chair provided in the air conditioning area by the sitting body detection means and the temperature detection means in a state where the lighting device in the air conditioning area is lit. It can be confirmed that the lighting device is turned off and the operating cost of the lighting device can be reduced. For example, although a person is seated in a chair provided in an air-conditioning area, it may be detected that the seat is not seated due to erroneous detection of the seating body detection means, but the temperature detection means provided in the chair Appropriate lighting can be maintained by confirming that the temperature of the seating portion detected by (1) rises and maintaining the lighting state, or confirming that it does not rise and turning off the light.

Air conditioning system schematic configuration diagram Flow chart showing control of air conditioner Flow chart showing control of stop determination process of air conditioner Flow chart showing control of temperature adjustment processing of air conditioner Flow chart showing control of air volume reduction process of air conditioner Flow chart showing control of lighting device

An embodiment of an air conditioning management system according to the present invention will be described based on the drawings.
As shown in FIG. 1, the air conditioning system S according to the present embodiment includes a room 1 as an air conditioned space divided into a plurality of air conditioning areas 2, and an air conditioner 3 that air-conditions the air conditioning area 2 for each air conditioning area 2. A plurality of chairs 4 are arranged in each air conditioning area 2 and provided with control means 5 that can control the operation state of the air conditioner 3.
Moreover, the illuminating device 8 is provided in each of the some air-conditioning area 2. FIG. The lighting state of the lighting device 8 can also be controlled by the control means 5.
Each of the plurality of chairs 4 includes seating body detection means 6 capable of detecting the presence of a person or an object (these are collectively referred to as a seating body) in the seating section 4 a of the chair 4, and the seating section of the chair 4. Temperature detecting means 7 capable of detecting the seating portion temperature Ts of 4a is provided.

  Each air-conditioning area 2 is a space in which the room 1 is divided into a plurality of spaces in which a plurality of chairs 4 and a plurality of desks 14 can be installed. The partition of the air-conditioning area 2 is shown by providing the locker 9 etc. between the air-conditioning areas 2. An air conditioner 3 and a lighting device 8 are provided on the ceiling surface 1 a of each air conditioning area 2.

  Specifically, the seating body detection means 6 is composed of a known semiconductor or piezoelectric pressure sensor that is an element capable of converting pressure into an electrical signal and outputting the electrical signal. It is provided in the supporting surface support | pillar part. The detection of the presence of a person or an object in the seating part 4a of the chair 4 can be detected by a change in pressure due to the weight of the person or the object transmitted through the seating part 4a and the seating surface column part. Moreover, the temperature detection means 7 provided in the seating part 4a of the chair 4 is comprised by the well-known thermocouple and temperature measuring resistor which can detect the seating part temperature Ts which is the temperature of the seating part 4a.

  Detection signals from the seating body detection means 6 and the temperature detection means 7 are input to the control means 5 using wireless communication means or the like. The power supply for operating the seating body detection means 6 and the temperature detection means 7 is, for example, a power generation means (not shown) that can generate power by receiving light from the illumination device 8. The power is supplied from the power generation means to the seat detection means 6 and the temperature detection means 7. Thereby, in the chair 4, the wiring for power supply and the wiring for detection signal transmission can be eliminated.

  The air conditioner 3 includes, for example, an air filter, a heat exchanger, and an air supply fan (not shown), and is configured such that air after air conditioning blows out from the air conditioning outlet 3a to the room 1. The amount of air blown out from the air conditioning outlet 3a can be adjusted by controlling the rotational speed of the air supply blower in the air conditioner 3. For example, this air volume is configured to be adjustable in five stages. In addition, the air conditioner 3 is configured such that the operation mode can be switched between a cooling operation and a heating operation.

  The illuminating device 8 has a light source configured as, for example, a fluorescent lamp, an LED, a light bulb, or the like, and the inside of the air-conditioning area 2 can be operated by a person on the desk 14 provided in each air-conditioning area 2. Can illuminate.

  On the side wall surface 1b of the room 1, there is a switch unit 10 for starting and stopping the air conditioning operation of the air conditioner 3 and changing the set air volume and the set temperature by the operation of the occupant and turning on and off the lighting device 8. Is provided.

The switch unit 10 and the control means 5 are connected by a communication line 11. The control means 5 and the air conditioner 3 are connected via an air conditioning communication line 12 capable of transmitting and receiving control signals for air conditioning control, and the operation of the switch unit 10 is used to start and stop the operation of the air conditioner 3. In addition, operation control such as changing the set air volume and set temperature is possible. Further, each air conditioner 3 can be independently controlled by operating the switch unit 10.
In addition, it replaces with the communication line 11 and the communication line 12 for an air conditioning, and is operate | moved between the switch part 10 and the control means 5 by the wireless communication means using infrared rays etc., and between the control means 5 and the air conditioner 3. You may comprise so that the control signal for control can be transmitted / received.

  Further, the control means 5 and the lighting device 8 are connected via a lighting communication line 13 capable of transmitting and receiving a control signal for turning on and off the lighting device 8, and the lighting device 8 is turned on by operating the switch unit 10. It is configured to be switchable between being turned off or being turned off. In addition, each lighting device 8 can be turned on and off independently by operating the switch unit 10.

  The control means 5 is composed of a computer or the like, and is provided with a storage unit (not shown) for storing history data of the sitting state and the non-sitting state of each chair 4 in the air conditioning area 2.

Next, control of the air conditioner 3 in the control means 5 will be described.
In this embodiment, the seating detection unit 6 detects the seating, and after the air-conditioning control is performed based on the detection result, the seating unit temperature is detected by the temperature detection unit 7 and the seating unit temperature is detected. Based on this, an example in which the air conditioning control is corrected will be described.

The control means 5 has, as its basic configuration, an air conditioner based on a seating rate which is a ratio of the number of chairs 4 in a seated state with respect to the number of all chairs 4 arranged in the air conditioning area 2. 3 is configured to control the operation. For example, as the seating rate is higher, it is determined that there are more people in the air-conditioning area 2, and in the case of cooling operation, air-conditioning control is performed so as to increase the air volume of the air-conditioning device 3 and increase the air-conditioning capacity. ing.
In this embodiment, it is determined that the chair 4 in the detection state in which the presence of the seating body (person or thing) is detected by the seating body detection means 6 is the chair 4 in the seating state in which a person is seated. The seating rate is determined as the ratio of the number of chairs 4 in the detection state in which the presence of the seating body is detected by the seating body detection means 6 to the number of all the chairs 4 provided in the air conditioning area 2. Furthermore, in the state of performing the air conditioning according to this seating rate, it is confirmed whether or not the person is truly seated on the seating portion 4a by the seating portion temperature sequentially detected by the temperature detecting means 7, Based on the result, the seating rate is corrected, and air conditioning control is performed based on the corrected seating rate. That is, based on the detection result of the seating body detection means 6 and the detection result of the temperature detection means 7 detected later than the detection of the seating body detection means 6, the true seating state is confirmed and the true seating rate is derived. The air conditioner 3 is controlled to operate based on the derived true seating rate.

The air conditioning control for the air conditioner 3 by the control means 5 in a state where the air conditioning control is performed in accordance with the seating rate determined as described above will be described with reference to FIGS.
In these drawings, FIG. 2 shows the main flow of air-conditioning control, and FIGS. 3, 4 and 5 show “air-conditioning stop determination processing”, which is processing at the time of air-conditioning stop determination control, and temperature adjustment shown in FIG. The flow of “temperature adjustment processing” that is processing at the time of control and “air volume reduction processing” that is processing at the time of air volume reduction control is shown.
The processing of the main flow shown in FIG. 2 is processing that is repeatedly performed at a constant time period on condition that the air conditioner 3 is working. That is, in the main flow, when the process reaches the end, after a predetermined time elapses, the process returns to the start.

  “Air-conditioning stop determination process” is a process when the seating rate becomes 0 while the air-conditioning control is continued. “Temperature adjustment processing” is a process in which the seating rate is maintained above a certain value while the air-conditioning control is continued. The “air volume reduction process” is a process when the seating rate becomes less than a certain value during the continuation of the air conditioning control.

  The purpose of each process is “air-conditioning stop determination process” is a process for controlling the air-conditioning apparatus 3 to stop when there is no person in the air-conditioning area 2, and “temperature adjustment process” has been suitable for the past. In the situation where air conditioning control has been performed, when there is an environmental change that affects the seating part temperature due to some factor, this process is to absorb the environmental change. When the number of people in the area 2 decreases, it corresponds to the decrease in the number of people, and at the same time, in the case of a small number of people, it is a process for reducing the air conditioning load for the purpose of energy saving.

[Main flow]
As shown in FIG. 2, the seating rate Rs is derived (# 102) on condition that the operation of the air conditioner 3 is continued (# 101). Here, the derived seating rate Rs is the seating rate Rs determined on the condition that the seating body detecting means 6 detects the seating body on the seating portion 4a. When the seating rate Rs is determined, air conditioning control of the air conditioning area 2 is performed based on the seating rate Rs and the preset target temperature of the air conditioning area 2 (# 103). As previously indicated, the air-conditioning control based on the seating rate Rs sets the air volume of the air conditioner 3 to a certain minimum air volume when the seating rate Rs is 0, and as the seating rate Rs increases, for example, In the case of the cooling operation, the air volume of the air conditioner 3 is gradually increased to the maximum air volume.

  The control means 5 detects the seating portion temperature Ts by the temperature detection means 7 with respect to the air conditioning control state that is preliminarily set as described above, and the air conditioner based on the seating rate Rs and the seating portion temperature Ts. 3 is controlled.

When performing this air conditioning control, as described above, the air conditioning control is divided into three systems with respect to the seating rate Rs that is the basis of the control.
That is, when the seating rate Rs becomes 0 (# 104), an air conditioning stop determination process (# 105) is performed. On the other hand, if the seating rate Rs is not 0, the control means 5 determines whether the seating rate Rs is greater than or less than a predetermined set seating rate R1 (# 106), and the seating rate Rs is a predetermined set seating. When the rate is equal to or greater than R1, the temperature adjustment process (# 107) is performed, and when the derived seating rate Rs is less than the predetermined set seating rate R1, the air volume reduction process (# 108) is performed. The predetermined set seating rate R1 is set to 0.3, for example.

  Hereinafter, each process of the air conditioning stop determination process (# 105), the temperature adjustment process (# 107), and the air volume reduction process (# 108) performed by the control means 5 will be described.

[Air conditioning stop judgment process]
The air conditioning stop determination process (# 105) is executed when the seating rate Rs becomes 0 (when no seats are detected by all the seat detection means 6). In this state, the air volume of the air conditioner 3 is controlled to a certain minimum air volume.
The control means 5 refers to the history data showing the seating state and the non-sitting state of the chair 4 in the storage unit, and the seating body detection means 6 does not detect the presence of a person or an object in the seating part 4a. Of the plurality of chairs 4 in the air-conditioning area 2 in the state, the seating portion temperature Ts detected by the temperature detecting means 7 provided in the chair 4 that has finally been in the non-sitting state is verified, When the temperature is lowered, the operation of the air conditioner 3 is stopped.

Specifically, as shown in FIG. 3, at the start of the air conditioning stop determination process (# 105), the seating section temperature Ts is provided by the temperature detection means 7 provided in the chair 4 that is finally in the non-sitting state from the sitting state. When a start time temperature T1 is detected (# 201) and a predetermined set time t1 (for example, 3 minutes) elapses from the start of the air conditioning stop determination process (# 105) (# 202), the end The elapsed time temperature T2, which is the seating portion temperature Ts, is detected by the temperature detection means 7 provided in the chair 4 that has changed from the sitting state to the non-sitting state (# 203). Then, the elapsed temperature T2 and the starting temperature T1 are compared (# 204), and when the seating portion temperature Ts detected by the temperature detecting means 7 is lowered, that is, the elapsed temperature T2 is changed to the starting temperature T1. When the temperature is less than (when the temperature falls outside the seating determination temperature range), the operation of the air conditioner 3 is stopped (# 205). On the other hand, when the seating portion temperature Ts detected by the temperature detecting means 7 does not change or rises, that is, the elapsed temperature T2 does not change or rises with respect to the start temperature T1. If so, the operation of the air conditioner 3 is continued (# 206).
Thereby, when a person has been seated on the chair 4 so far, the seating portion temperature Ts decreases when the person leaves the chair 4 to check the true seating state. The air conditioner 3 can be stopped accurately when it is away from the seating portion 4a.

[Temperature adjustment processing]
In the temperature adjustment process (# 107), on the premise that the air conditioning control is accurately performed for the relatively high seating rate Rs, the control means 5 is used to maintain the state. Is executed by.
In this temperature adjustment process (# 107), the control means 5 is the temperature provided in the chair 4 that is determined to be seated in the control state in which the air conditioner 3 is operated and controlled based on the seating rate Rs. Regarding the detection result of the detection means 7, based on the detected temperature change tendency of the seating portion temperature Ts, temperature adjustment control for controlling the operating state of the air conditioner 3 is executed so as to reduce the temperature change tendency. That is, the operation of the air conditioner 3 is performed so as to reduce the temperature change tendency based on the average temperature change tendency of the detection result of the temperature detection means 7 provided in the chair 4 determined to be seated. Control the state.

  Specifically, when the average temperature of the seating portion temperature Ts of the chair 4 in the sitting state increases, a temperature reduction process for lowering the temperature of the air-conditioning area 2 is performed by the air conditioner 3, and the seating state is set. When the average temperature of the seating portion temperature Ts of the chair 4 is not increased, a temperature increase process for increasing the temperature of the air-conditioning area 2 is performed by the air conditioner 3.

  That is, as the temperature lowering process, the control unit 5 increases the air volume of the air conditioner 3 when the operation mode of the air conditioner 3 is the cooling operation, and decreases the air volume when the operation mode of the air conditioner 3 is the heating operation. . On the other hand, as the temperature increase process, the air volume is decreased when the air conditioner 3 is in the cooling operation, and the air volume is increased when the air conditioner 3 is in the heating operation.

  Specifically, as shown in FIG. 4, with respect to the temperature detection means 7 of the chair 4 in the sitting state, the average temperature of the seating portion temperature Ts detected by each temperature detection means 7 provided in the plurality of chairs 4. A certain start time average temperature T3 is obtained (# 301), and when a predetermined elapsed time t2 (for example, 10 minutes) elapses from the start of the temperature adjustment process (# 302), a plurality of chairs 4 are assigned. An elapsed time average temperature T4, which is an average temperature of the seating portion temperatures Ts detected by the respective temperature detecting means 7 provided, is obtained (# 303).

  The elapsed average temperature T4 and the starting average temperature T3 are compared (# 304). If the elapsed average temperature T4 is higher than the starting average temperature T3, the operation mode of the air conditioner 3 is the cooling mode. It is determined whether the operation or heating operation (# 305). When the air conditioner 3 is in the cooling operation, the air volume is increased (# 306), and when the air conditioner 3 is in the heating operation, the temperature reduction process is performed to decrease the air volume (# 307).

On the other hand, in the comparison between the elapsed average temperature T4 and the starting average temperature T3 (# 304), even when the elapsed average temperature T4 is equal to or lower than the starting average temperature T3, the operation mode of the air conditioner 3 is the cooling operation. It is determined whether the heating operation is performed (# 308). When the air conditioner 3 is in the cooling operation, a temperature increase process is performed to decrease the air volume (# 309), and when the air conditioner 3 is in the heating operation, the air volume is increased (# 310). Then, the air conditioner 3 is operated for a predetermined operation time set in advance (for example, 10 minutes) while maintaining the adjusted air volume (# 311).
By performing such air conditioning control, it is possible to appropriately adapt to changes in the air conditioning environment and maintain a suitable air conditioning state.

[Air conditioning capacity reduction processing]
The air volume reduction process (# 108) is performed by the control means 5 when the seating rate Rs falls below a predetermined seating rate for a relatively low seating rate Rs.
In the air volume reduction process (# 108), as shown in FIG. 5, the air volume of the air conditioner 3 in the air conditioning area 2 is decreased by one step (# 401). Then, the air conditioner 3 is operated for a predetermined operation time (for example, 30 minutes) while maintaining the adjusted air volume (# 402).

[Control of lighting device]
Next, control of the illumination device 8 in the control means 5 will be described.
The control means 5 turns on the lighting device 8 in the air conditioning area 2 when any of the seating body detection means 6 in the air conditioning area 2 detects the seating body. When the seating part temperature Ts detected by the temperature detection means 7 provided in the chair 4 is not increased, the lighting device 8 is turned off.

Specifically, as shown in FIG. 6, the control means 5 turns on the lighting device 8 in the air-conditioning area 2 when any of the seating body detection means 6 detects the seating body (# 501) (##). 502). Thereafter, a lighting temperature T5 is detected as the seating portion temperature Ts when the lighting device 8 is turned on, which is detected by the temperature detecting means 7 provided in the sitting chair 4 (# 503). When a predetermined set time t3 (for example, 15 seconds) set in advance from the lighting of the lighting device 8 has elapsed (# 504), the post-lighting temperature T6 as the seating portion temperature Ts after the lighting device 8 is turned on is It is detected (# 505).
Then, the lighting temperature T6 is compared with the lighting temperature T5 (# 506), and when the seating portion temperature Ts detected by the temperature detecting means 7 does not increase (for example, a person is not seated, for example, a bag is a chair 4), that is, when the lighting temperature T6 is equal to or lower than the lighting temperature T5, the lighting device 8 is turned off (# 507). On the other hand, when the seating portion temperature Ts detected by the temperature detecting means 7 rises (corresponding to a case where a person is actually seated), that is, when the temperature T6 after lighting is higher than the lighting temperature T5, the lighting device 8 The lighting is continued (# 508). Here, when the plurality of chairs 4 are in the sitting state, the lighting temperature T5 and the after-lighting temperature T6 are detected by the temperature detecting means 7 provided in each of the sitting chairs 4. The average temperature of the sitting portion temperature Ts.

[Other Embodiments]
Finally, other embodiments of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied independently, and can be applied in combination with the configuration of other embodiments as long as no contradiction arises.
(1) In the above embodiment, the two air-conditioned areas 2 are provided in the room 1 as the air-conditioned space. However, the present invention is not limited to this, and three or more air-conditioned areas 2 may be provided in the room 1.

(2) In the above embodiment, the seating body detection means 6 capable of detecting the presence of a person or an object in the seating part 4a of the chair 4 is the pressure sensor provided on the seating surface support part of the chair 4, but this is not limitative. Instead, the seating body detection means 6 may be configured by a human sensor capable of detecting the presence of the seating body (person or object) in the seating portion 4a of the chair 4. As this human sensor, a photo sensor or the like can be used.

(3) In the above embodiment, the air volume of the air conditioner 3 is configured to be adjustable in five stages, and the air volume is increased or decreased by one stage in the temperature adjustment process (# 107) and the air volume reduction process (# 108). Not limited to this, the air volume of the air conditioner 3 can be adjusted steplessly. In the temperature adjustment process (# 107) and the air volume reduction process (# 108), instead of increasing or decreasing the air volume by one step, a predetermined predetermined amount is used. It is good also as a structure which increases / decreases an air volume.

(4) In the above embodiment, the temperature adjustment process (# 107) is performed based on the average temperature of the seating portion temperature Ts of the chair 4 that is in the seated state. The temperature adjustment process (# 107) may be performed based on the total temperature obtained by summing the seating portion temperatures Ts of the chair 4.

(5) In the above embodiment, in controlling the operating state of the air conditioner 3 based on the seating rate Rs and the seating portion temperature Ts in the temperature adjustment process (# 107) and the air volume reduction process (# 108), the air conditioner 3 is adjusted, but not limited to this, the air temperature after air conditioning blown out from the air conditioner 3 is adjusted in controlling the operation state of the air conditioner 3 based on the seating rate Rs and the seating portion temperature Ts. It is good also as composition to do.

(6) In the above embodiment, in the air-conditioning stop determination process (# 105), when the air-conditioning control has been executed so far because a person exists in the air-conditioning area 2, the storage unit of the control means 5 Referring to the history data showing the seating state and non-sitting state of the chair 4, the seating portion temperature Ts detected by the temperature detecting means 7 provided in the chair 4 that has finally been in the non-sitting state from the seating state Is configured to stop the operation of the air conditioner 3 when the temperature falls outside the seating determination temperature range (when the temperature drops), but when a person enters the air conditioning area 2 and sits on the chair 4, In this way, the true seating rate can be detected.
That is, when a person actually enters and sits in the air-conditioning area, the temperature of the seating portion 4a rises from the normal room temperature to a temperature close to the human body temperature. Therefore, for example, the seating state detection unit 6 detects the sitting state, and the air conditioning control is executed in accordance with the detected state. In addition, the operation of the air conditioner 3 can be stopped when the seating portion temperature Ts detected by the temperature detecting means 7 does not rise from the room temperature to the preset seating determination temperature. In this case, when the seating determination temperature rises, naturally, the current air conditioning state is maintained.

(7) In the above embodiment, when the lighting device 8 is lit, the control means 5 has a seating rate Rs that is not 0 (when any seating body detection means 6 detects a seating body). ), When the seating portion temperature Ts detected by the temperature detection means 7 provided in the seated chair 4 does not rise (when it does not rise to the seating determination temperature), the lighting device 8 is turned off. However, the present invention is not limited to this, and the control means 5 is configured so that the seating rate Rs becomes 0 when the lighting device 8 is lit (a state where no seating body is detected by all the seating body detection means 6). When the seating portion temperature Ts detected by the temperature detection means 7 provided in the plurality of chairs 4 in the non-sitting state rises, the lighting state of the lighting device 8 is maintained and increased. If not The device 8 may be configured to be turned off.

(8) In the above embodiment, the predetermined set seating rate R1 is set to 0.3. However, the present invention is not limited to this, and the predetermined set seating rate R1 is set to a desired numerical value greater than 0 and less than or equal to 1. Can do. Alternatively, the predetermined seating rate R1 may not be provided, and the temperature adjustment process (# 107) may be performed whenever the seating rate Rs is other than 0.

(9) In the above embodiment, a temporary seating rate is derived based on the detection result by the sitting body detection means 6, and then based on the detection result by the temperature detection means 7 provided in the seating portion 4 a of each chair 4. The true seating rate is derived and the air-conditioning control is performed based on the seating rate. However, as described above, as a configuration for easily and accurately detecting the seating state of each chair 4 It is also possible to continue the air conditioning control by obtaining the seating rate with high reliability by performing the detection by the seating body detection means 6 and the detection by the temperature detection means 7 at the same time.
In the case of this configuration, seating can be confirmed as follows.

[Confirmation of human seating by detecting seating temperature]
This confirmation method relates to the chair 4 from which the seating body is detected by the seating body detection means 6, and when the seating portion temperature Ts detected by the temperature detection means 7 is within a preset seating determination temperature range. It is determined that a person is seated on the chair 4. On the other hand, when the seating portion temperature is out of the seating determination temperature range, it is determined that no person is seated on the chair 4. Then, the true seating rate is derived based on the detection results of both the seating body detection means 6 and the temperature detection means 7.
That is, when the seating state is determined by both detection means (when the load applied to the pressure sensor as the seating body detection means 6 is detected, or when the presence sensor detects the presence of the seating body, the temperature detection means 7 When the temperature is detected within the seating temperature range, it is determined that the seat is in the seated state, and the load applied to the pressure sensor as the seating body detecting means 6 is detected, or the presence sensor detects the presence of the seating body. If the temperature detection means 7 cannot detect the temperature within the seating temperature range, it is determined that the seat is in the non-sitting state), and the seating rate is derived based on the determination, and the air conditioning control may be performed.

  As described above, it is possible to provide an air conditioning system capable of performing appropriate air conditioning for each air conditioning area according to the state of a person who is truly seated for each air conditioning area of the air conditioning space.

1 room (air-conditioned space)
2 Air-conditioning area 3 Air-conditioner 4 Chair 5 Control means 4a Seating part 6 Seated body detection means 7 Temperature detection means 8 Illumination device R1 Set seating rate Rs Seating rate S Air-conditioning system Ts Seating part temperature

Claims (9)

The air-conditioned space is divided into a plurality of air-conditioning areas, and air-conditioning devices for air-conditioning the air-conditioning areas are provided for each air-conditioning area, and a plurality of seating chairs are provided in each air-conditioning area, and the operating state of the air-conditioning device An air conditioning system equipped with a control means capable of controlling
The control means is configured to control the operation of the air conditioner according to a seating rate that is a ratio of the number of chairs in a seated state where a person is seated with respect to the number of all chairs arranged in the air conditioning area,
Each of the chairs is provided with a seating body detection means capable of detecting the presence of a seating body in the seating section, and a temperature detection means capable of detecting a seating section temperature which is a temperature of the seating section,
The control means determines a case where the presence of the seating body is detected based on a detection result of the seating body detection means as the seating state, obtains a temporary seating rate as the seating rate, and determines the temporary seating. The air-conditioning area is air-conditioned by operating the air-conditioning device according to the rate,
The control means relates to a chair in which the seating body is detected by the seating body detection means in a state where the air-conditioning area is air-conditioned by operating the air conditioner according to the seating rate, and detected by the temperature detection means. When the seating portion temperature is within a preset seating determination temperature range, the seating state is determined and a true seating rate is obtained as the seating rate, and then the seating rate is determined according to the true seating rate. An air conditioning system that controls the operating state of the air conditioner. The control means is in a state where the air-conditioning area is air-conditioned by operating the air-conditioning apparatus, the temporary seating rate becomes zero , and the seating part temperature detected last by the temperature detection means is If deviated drops from the sitting determination temperature range preset air conditioning system of claim 1 for stopping controlling the air conditioner. In the state where the air-conditioning area is air-conditioned by controlling the operation of the air conditioner, the control means has a temporary seating rate of zero, and the seating portion temperature detected by the temperature detection means is preset. The air conditioning system according to claim 1, wherein the air conditioner is controlled to stop when the temperature does not rise to a seating determination temperature range.   The control means is detected with respect to a detection result of a temperature detection means provided in a chair determined that the person is seated in an operation control state in which the air conditioner is operation controlled according to the seating rate. The temperature adjustment control for controlling the operation state of the air conditioner is executed based on the temperature change tendency of the seating portion temperature so as to reduce the temperature change tendency. Air conditioning system.   The air conditioning according to claim 4, wherein, in the temperature adjustment control, the operating state of the air conditioner is controlled based on a temperature change tendency of an average value of detection results of the temperature detection means so as to reduce the temperature change tendency. system. The air conditioner is configured to be switchable between a cooling operation and a heating operation,
The control means includes
As a temperature reduction process that is a control to reduce the temperature change tendency, the air volume of the air conditioner is increased when the air conditioner is in cooling operation, and the air volume is decreased when the air conditioner is in heating operation,
The temperature increase process as control for reducing the temperature change tendency, the air volume is decreased when the air conditioner is in cooling operation, and the air volume is increased when the air conditioner is in heating operation. The air conditioning system described. Wherein when the seating ratio is equal to or higher than a predetermined seating rate, perform the temperature adjustment control, when the seating ratio is less than said predetermined set seating rate, the air conditioner of the air conditioning area The air conditioning system according to any one of claims 4 to 6, wherein air conditioning capability lowering control for reducing the air conditioning capability is executed. A lighting device is provided in each of the plurality of air-conditioning areas,
The control means turns on the lighting device in the air conditioning area when any of the seating body detection means provided in the target air conditioning area detects the seating body, and after the lighting device is turned on, The air conditioning system according to any one of claims 1 to 7 , wherein the lighting device is turned off when the seating portion temperature detected by the temperature detection means provided in the seated chair does not rise. A lighting device is provided in each of the plurality of air-conditioning areas,
The control means detects the temperature provided in the chair in the air-conditioning area when the illumination device in the air-conditioning area is lit and no seating body is detected in any of the target seat detection means. The air conditioning system according to any one of claims 1 to 8 , wherein a lighting state of the lighting device is maintained when the seating portion temperature detected by the means rises, and the lighting device is turned off when the temperature does not rise.

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