WO2016092635A1

WO2016092635A1 - Air control system

Info

Publication number: WO2016092635A1
Application number: PCT/JP2014/082585
Authority: WO
Inventors: 健太郎橋本
Original assignee: 三菱電機株式会社
Priority date: 2014-12-09
Filing date: 2014-12-09
Publication date: 2016-06-16
Also published as: JP6415596B2; JPWO2016092635A1

Abstract

This air control system is equipped with: dampers 3 which control the air volume between ducts 2 that send air subjected to heat exchange in an air conditioner 1 to each room and the rooms; controller 4, each of which receives, from a user, input of information relating to the number of dampers to be connected in a respective room; temperature sensors 8, each of which measures the indoor temperature of a respective room; presence sensors 9, each of which measures the number of persons in a respective room; and a control device 10 that controls the opening/closing of the damper 3 for each room using the information about the indoor temperature and the number of persons in the room.

Description

Air control system

The present invention relates to an air control system in which an air conditioner and each room are connected by a duct, and the air conditioner controls air conditioning in each room.

Conventionally, there is an air control system that controls the air conditioning of the entire house using one air conditioner having a heat exchanger. In such an air control system, the air conditioner and each room are connected by a duct, the air generated by the air conditioner is supplied to each room via the duct, and the room that does not require supply is shut off by closing the damper. To do. Even in an air control system in which one air conditioner and each room are connected by a duct, control for improving the comfort of each room is indispensable. For this reason, the following Patent Document 1 discloses a technique for providing a human sensor for each room and performing optimum air conditioning control for each room in the air control system.

JP 2010-139129 A

However, according to the conventional technique, the operation mode is switched for each room depending on the presence or absence of a person. Therefore, there is a problem that even if the room size and the number of people in the room are different, the same operation mode is set in each room, and there is a concern that control suitable for the state of each room is not performed.

The present invention has been made in view of the above, and in an arrangement in which an air conditioner supplies air to each room via a duct, an air control system capable of air conditioning control in accordance with the state of each room is obtained. With the goal.

In order to solve the above-described problems and achieve the object, an air control system according to the present invention includes a duct for blowing air exchanged by an air conditioner to each room, and a damper for controlling the amount of air between the rooms. A controller that accepts input of information on the number of dampers connected by user operation in each room, a temperature sensor that measures the room temperature in each room, a human sensor that measures the number of people in each room, the room temperature and And a control device for controlling the opening and closing of the damper for each room using the information on the number of people in the room.

The air control system according to the present invention has an effect that air conditioning can be controlled according to the state of each room in a configuration in which the air conditioner supplies air to each room via a duct.

The figure which shows the structural example at the time of applying an air control system to a house Block diagram showing a configuration example of an air control system The figure which shows the parameter of the state of each room Flowchart showing room weighting operation in control device Flow chart showing temperature weighting operation in control device The figure which shows the temperature weight table showing the relationship between temperature difference and temperature weight Flow chart showing density weighting operation in control device Density weight table showing the relationship between room size, number of people in the room and density weight The figure which shows the hardware constitutions of the control device

Hereinafter, an air control system according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram illustrating a configuration example when an air control system according to an embodiment of the present invention is applied to a house. FIG. 2 is a block diagram illustrating a configuration example of the air control system. In the air control system, as shown in FIG. 1, the air heat-exchanged by the air conditioner 1 passes through the duct 2 and is supplied to the room 5 and the room 6. In the air control system, a damper 3 is installed in each room, and the air supply can be shut off by closing the damper 3 in a room where the air supply from the air conditioner 1 is unnecessary. Here, one duct 2 is connected to the room 5 via the damper 3, and two ducts 2 are connected to the room 6 via the damper 3. In the air control system shown in FIGS. 1 and 2, the room size indicating the number of rooms, ducts 2 and dampers 3, and the size of the room is an example, and the present invention is not limited to this.

The controller 4 installed in each room allows the user to set and change the room size, the number of dampers 3 equal to the number of ducts 2 connected to the room, and the set temperature for the air conditioner 1. Can do. The controller 4 includes a temperature sensor 8 and a human sensor 9, and transmits information on the temperature sensor 8 and human sensor 9 to the control device 10 in addition to information on the room size, the number of dampers 3, and the set temperature. . If the controller 4 is a type installed on the wall of each room, it communicates with the control device 10 by wire or wirelessly, and if it is a movable remote control type, it communicates with the control device 10 wirelessly.

The temperature sensor 8 measures the room temperature of the room where the controller 4 is located. The human sensor 9 measures the number of people in the room with the controller 4. The human sensor 9 can grasp not only the presence / absence of the person 7 but also the number of persons. Here, the controller 4 is configured to include the temperature sensor 8 and the human sensor 9. However, the controller 4 is an example, and the temperature sensor 8 and the human sensor 9 originally have a function independent of the controller 4. The controller 4 may be independent of the configuration. In the case of an independent configuration, the temperature sensor 8 transmits information on the measured room temperature to the control device 10 by wire or wirelessly. In addition, the human sensor 9 transmits information on the measured number of people in the room to the control device 10 in a wired or wireless manner.

The control device 10 is measured by the transmission / reception unit 11 that communicates with the air conditioner 1, the controller 4, and the damper 3 by wired or wireless communication, the information set by the controller 4, the temperature sensor 8, and the human sensor 9. And a control unit 12 that controls the opening and closing of the damper 3 in each room, and a storage unit 13 that stores various tables to be described later.

In the control device 10, the control unit 12 opens and closes the damper 3 in each room based on information acquired by the transmission / reception unit 11 and information set by the controller 4 and information measured by the temperature sensor 8 and the human sensor 9. Control. Specifically, the control unit 12 of the control device 10 calculates and weights each room based on the room size, the number of people in the room, the set temperature, and the room temperature, and weights each room. The numerical aperture of 3 is determined and the opening and closing of the damper 3 is controlled. The weight indicates the degree of priority for the air conditioning control, and the larger the value, the higher the priority. The control unit 12 of the control device 10 performs temperature weighting and density weighting for each room, performs room weighting from the temperature and density weights, and determines the numerical aperture of the damper 3 based on the weight of each room.

The temperature weight is obtained from the state of the room temperature with respect to the set temperature, and is a value that changes according to a change in the room temperature. The density weight is obtained from the density of the number of people in the room, and the priority for the density is changed during cooling and heating. The room weight relatively indicates the priority of air conditioning control of each room, which is obtained from the temperature weight and the density weight.

Next, an operation for weighting in the control device 10 will be described. Here, as an example, the case where the states of the room 5 and the room 6 are shown in FIG. 3 will be described. FIG. 3 is a diagram showing parameters of the state of each room. In the room 5, the number of ducts to be connected, that is, the number of dampers is “1”, the room size is “40 m ³ ”, the number of people in the room is “1 person”, and the temperature difference between the set temperature and the room temperature is “5 ° C.” The room 6 indicates that the number of connected ducts, that is, the number of dampers is “2”, the room size is “80 m ³ ”, the number of people in the room is “2 people”, and the temperature difference is “1 ° C.”.

FIG. 4 is a flowchart showing the room weighting operation in the control device 10. First, the control part 12 of the control apparatus 10 performs temperature weighting (step S11). FIG. 5 is a flowchart showing the temperature weighting operation in the control unit 12. The control unit 12 acquires the set temperature information set by the controller 4 and the room temperature information measured by the temperature sensor 8 from the controller 4 in each room via the transmission / reception unit 11 (step S21). The controller 12 calculates a temperature difference between the set temperature and the room temperature for each room (step S22). The control unit 12 determines a temperature weight for each room based on the calculated temperature difference (step S23).

FIG. 6 is a diagram showing a temperature weight table showing the relationship between the temperature difference and the temperature weight. The control unit 12 refers to the temperature weight table shown in FIG. 6 and determines the temperature weight from the calculated temperature difference. The temperature weight table is held in the storage unit 13 of the control device 10. In addition, the value of the temperature weight table shown in FIG. 6 is an example, and is not limited to this. Since the priority of air conditioning control increases as the temperature difference increases, the temperature weight table other than that shown in FIG. 6 is used if the temperature weight increases as the temperature difference increases. Also good.

In the control unit 12, when the parameters shown in FIG. 3 are used, the temperature difference for the room 5 is 5 ° C., so the temperature weight is determined as “20” with reference to the temperature weight table in FIG. Since the temperature difference is 1 ° C., the temperature weight is determined as “2” with reference to the temperature weight table of FIG.

Referring back to FIG. 4, the control unit 12 performs density weighting (step S12). FIG. 7 is a flowchart showing the density weighting operation in the control device 10. The control unit 12 obtains information on the room size of the room set by the controller 4 (step S31) and information on the number of people in the room measured by the motion sensor 9 (step S32) from the controller 4 of each room. Obtained via the transceiver 11. The control unit 12 determines a density weight for each room based on information on the room size and the number of people in the room (step S33).

FIG. 8 is a diagram showing a density weight table showing the relationship between the room size, the number of people in the room, and the density weight. The control unit 12 refers to the density weight table shown in FIG. 8 and determines the density weight from the room size and the number of people in the room. The density weight table is held in the storage unit 13 of the control device 10. In addition, the value of the density weight table shown in FIG. 8 is an example, and is not limited to this. During cooling, the higher the population density, the more difficult it becomes to cool. Therefore, a density weight table other than that shown in FIG. On the other hand, during heating, the higher the population density, the easier it is to warm up. Therefore, unlike FIG. 8, a density weight table (not shown) in which the density weight is smaller as the population density is higher is used.

In the control device 10, when the parameters shown in FIG. 3 are used, the room size is 40 m ³ and the number of people in the room is 1 for the room 5, so the density weight “3” is determined with reference to the density weight table in FIG. Since the room size is 80 m ³ and the number of people in the room is two, the density weight “10” is determined with reference to the density weight table in FIG.

Referring back to FIG. 4, the control device 10 calculates the room weight (step S13). The control device 10 calculates the room weight by multiplying the temperature weight and the density weight for each room.

In the control device 10, when the parameters shown in FIG. 3 are used, the temperature weight of the room 5 is “20” and the density weight is “3”, so the room weight of the room 5 is calculated as “20 × 3 = 60”. Since the temperature weight of the room 6 is “2” and the density weight is “10”, the room weight of the room 6 is calculated as “2 × 10 = 20”. As a result, the air control priority of the room 5 is higher than that of the room 6.

The control device 10 calculates the number of dampers 3 opened in each room according to the calculated room weight ratio of each room based on the following equation (1). The total number of dampers is the total number of dampers 3 connected to each room. Here, since the number of dampers in the room 5 is “1” and the number of dampers in the room 6 is “2”, the total number of dampers is “3”. The control device 10 rounds up after the decimal point, and if the calculated number of dampers 3 that are opened is larger than the number of dampers provided in the room, the number of dampers provided in the room is used. However, when the total number of room weights is 0, the number of dampers opened is fixed to 0.

Number of dampers opened in each room = (room weight of each room / total number of room weights) x total number of dampers (1)

When the parameters shown in FIG. 3 are used, since the room weight of the room 5 is “60” and the room weight of the room 6 is “20”, the total number of room weights is “60 + 20 = 80”. As a result, the control device 10 rounds up “(60/80) × 3 = 2.25” because the number of dampers opened in the room 5 is 3. However, since the number of dampers provided in the room 5 is 1, “1” " Further, the control device 10 sets “1” because the number of dampers opened in the room 6 is rounded up to “(20/80) × 3 = 0.75”.

As described above, the control device 10 controls the opening / closing of the damper by determining the number of dampers opened for each room based on the information on the room size, the number of people in the room, the set temperature, and the room temperature.

In the control device 10, the efficiency of air conditioning control can be improved by performing the above-mentioned control at regular intervals, when changing the number of people in the room, changing the room size, changing the set temperature, or changing the room temperature, Damper control considering comfort and energy saving is possible.

However, since there is a time zone in which the presence or absence of a person cannot be detected such as at night, the air control system may be configured to set a time zone during which the above control is not performed from the controller 4.

When the dampers 3 of all the ducts 2 are closed, the control device 10 can save energy by sending an operation stop command to the air conditioner 1 and stopping the air conditioning operation.

When the number of people in the room becomes zero and the dampers 3 of all the ducts 2 are closed and the air conditioner 1 is stopped, the control device 10 instructs the air conditioner 1 to resume operation when the number of people in the room changes. The air conditioning operation can be resumed.

Here, a hardware configuration for realizing each configuration of the block diagram of the control device 10 shown in FIG. 2 will be described. FIG. 9 is a diagram illustrating a hardware configuration of the control device 10. The control unit 12 is realized by the processor 22 executing a program stored in the memory 23. The storage unit 13 is realized by the memory 23. The transmission / reception unit 11 is realized by the communication unit 21. The communication unit 21, the processor 22, and the memory 23 are connected by a system bus 24. In the control device 10, a plurality of processors 22 and a plurality of memories 23 may cooperate to execute the functions of the components shown in the block diagram of FIG. 2. The control device 10 can be realized by the hardware configuration shown in FIG. 9, but can be implemented by either software or hardware.

As described above, according to the present embodiment, in the air control system, the controller 10 receives the set temperature, the room size, the number of dampers, and the room temperature measured by the temperature sensor 8 by the controller 4 in the controller 4. The room weighting is performed using the information on the number of indoors measured by the human sensor 9, the number of dampers opened in each room is calculated from the room weight, and the opening / closing of the damper 3 is controlled. Thereby, in the air control system, the opening / closing of the damper 3 is controlled by obtaining the numerical aperture of the damper 3 in accordance with the state of each room, such as the temperature condition of each room, the number of people in the room, etc. The air-conditioning control for comfort can be performed, and the control in consideration of comfort and energy saving can be performed.

In the case of a system in which the room size cannot be input to the controller 4 in the air control system, the density weight is the number of people in the room.

Also, when the presence sensor 9 can detect only the presence / absence, not the number of people in the room, the density weight is determined by “0” when the person is absent and only the size of the room when the person is present. In this case, in the density weight table shown in FIG. 8, for example, information on the density weight according to each room size when the number of people in the room is “0” and “1” is used. When the human sensor 9 is not present, the density weight is determined only by the size of the room. In this case, in the density weight table shown in FIG. 8, for example, information on the density weight according to each room size when the number of people in the room is “1” is used.

In the case of a system in which the room size cannot be input to the controller 4 and the human sensor 9 does not exist, the density weight is “1”.

If the temperature sensor 8 does not exist, the temperature weight is “1”.

For example, in the configuration shown in FIG. 1, when the room size cannot be input by the controller 4 and the temperature sensor 8 does not exist, in the control device 10, the room weight of the room 5 is density weight “1” × temperature weight “1”. It is assumed that the room weight of the room 6 is “2” with density weight “2” × temperature weight “1”. The control device 10 sets the number of dampers opened in the room 5 to “(1/3) × 3 = 1” according to the above equation (1). Further, the control device 10 sets the number of dampers opened in the room 6 to “(2/3) × 3 = 2”.

In this way, the control device 10 weights each room using only the information that can be acquired, that is, using at least one piece of information among the set temperature, the room size, the room temperature, and the number of people in the room. Thus, the number of dampers opened in each room may be determined, and the opening / closing of the dampers 3 may be controlled.

The control device 10 may control the opening / closing of the damper 3 using only the room temperature measured by the temperature sensor 8 and the information on the number of people in the room measured by the human sensor 9.

The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 air conditioner, 2 ducts, 3 dampers, 4 controllers, 5, 6 rooms, 7 people, 8 temperature sensors, 9 human sensors, 10 control devices, 11 transmission / reception units, 12 control units, 13 storage units, 21 communication units , 22 processor, 23 memory, 24 system bus.

Claims

A duct that blows air exchanged by the air conditioner into each room and a damper that controls the amount of air between the rooms;
A controller that accepts input of the number of dampers connected by user operation in each room;
A temperature sensor that measures the room temperature in each room;
A human sensor that measures the number of people in each room,
Using the information on the room temperature and the number of people in the room, a control device for controlling the opening and closing of the damper for each room;
An air control system comprising:
The controller accepts input of set temperature and room size information by user operation,
The control device is based on the set temperature and room size received by the controller of each room, the room temperature measured by the temperature sensor of each room, and the number of people in the room measured by the human sensor of each room. Determine the number of dampers opened in each room by weighting the rooms, and control the opening and closing of the dampers;
The air control system according to claim 1.
The controller includes the temperature sensor and the human sensor, and transmits information received by a user operation, information measured by the temperature sensor and the human sensor to the control device,
The air control system according to claim 2.
A duct that blows air exchanged by the air conditioner into each room and a damper that controls the amount of air between the rooms;
Using one or more of the set temperature and room size information received by user operation in each room, the room temperature information measured in each room, and the number of people in the room measured in each room A control device for controlling the opening and closing of the damper for each room;
An air control system comprising:
The control device weights each room based on one or more information among the set temperature, the room size, the room temperature, and the number of people in the room to determine the number of dampers opened in each room. And controlling the opening and closing of the damper,
The air control system according to claim 4.