JP6845754B2 - Building air conditioning system - Google Patents

Description

The present invention relates to a building air conditioning system.

There is known an air conditioner system in which an air conditioner for air-conditioning a plurality of rooms is provided in a building and the air-conditioning objects are cooled or heated all at once. By installing an air-conditioning system, the air environment of the entire room targeted for air-conditioning can be adjusted, and there is an advantage that comfort can be maintained at all times.

As a technology related to the air conditioning system of a building, various technical proposals have been made so far in order to further enhance the comfort by adjusting the room temperature. For example, by providing an on-off valve in the air-conditioning duct that sends cold air or warm air to each room to be air-conditioned and adjusting the opening of the on-off valve, cold air is given priority to rooms with insufficient heat or rooms that require rapid air conditioning. Alternatively, it has been proposed to increase comfort by sending warm air (see Patent Document 1).

Japanese Patent No. 5375750

However, if an on-off valve is provided for each air-conditioning duct to control the opening degree of each, there is a problem that the configuration and control contents of the air-conditioning system become complicated and the manufacturing and installation costs increase.

Therefore, an object of the present invention is to provide an air conditioning system capable of forming a comfortable air environment without adopting a complicated mechanism for cooling or heating a plurality of rooms at the same time.

In order to solve the above-mentioned problems, the first invention is an air-conditioning system for a building provided with an air-conditioning device that targets a plurality of rooms for air-conditioning and performs at least one of cooling and heating of each room through an air-conditioning duct. , The air environment acquisition means for acquiring the air environment of each room, the reference room setting means for setting any one of the plurality of rooms as the reference room, and the reference room set by the reference room setting means. The air conditioner control means that controls the air conditioner so that the air environment acquired by the air environment acquisition means becomes a target value, and the air environment acquisition means in each room during the air conditioner control by the air conditioner control means. The reference room setting means includes a storage unit for storing the deviation between the air environment and the target value acquired by the storage unit in the storage unit, and the reference room setting means is based on the deviation for each room stored by the storage unit. The reference room is set at a predetermined cycle.

According to the first invention, the air conditioning control of the entire building is carried out by the air conditioner so that the actual air environment (room temperature, humidity, etc.) of the reference room in the set building becomes the target value. In this case, it is conceivable that the air-conditioning control status (for example, cooling ability) differs for each room due to the difference in the environment of each room, and the amount of deviation between the actual air environment and the target value differs in each room. In this regard, according to the above configuration, the deviation between the actual air environment and the target value is sequentially stored in the storage unit for each room when the entire building is air-conditioned. Then, based on the deviation for each room, a reference room that serves as a reference for performing air conditioning in the entire building at a predetermined cycle is set. As a result, a comfortable air environment can be formed without adopting a complicated mechanism such as separately providing an on-off valve as in the prior art.

In the second invention, in the first invention, the reference room setting means compares the deviation of each room stored in the storage unit within a predetermined period of time, and determines the room having the largest deviation as the reference. It is characterized by being set as a room.

According to the second invention, the deviation between the actual air environment and the target value is compared in magnitude, and the room having the largest deviation is set as the reference room. The largest deviation means that the room requires the most air-conditioning control to the target value. Therefore, the comfort can be further improved by implementing the air-conditioning control in the entire building according to the room.

In the third invention, in the second invention, the plurality of rooms include a room that can be set as the reference room and a room that cannot be set as the reference room. The room setting means is characterized in that, among the rooms that can be set as the reference room, the room having the largest deviation is set as the reference room.

For example, even if the deviation between the actual air environment and the target value is the largest, such as in a toilet, the time spent by the building user is limited, so air conditioning control to the target value is not always necessary. Not all rooms. Therefore, according to the third invention, by excluding such a room that does not need to be set as the reference room from the setting as the reference room, the reference room is limited to the room where the need for air conditioning control is higher. Is set, so that the practicality of air conditioning control can be enhanced.

In the fourth invention, in any of the first to third inventions, the deviation is calculated for a room in which a person is present at the time of air conditioning control by the air conditioning control means, and the deviation is calculated. Is stored in the storage unit.

By making the difference between the air environment of the room where people are present and the target value as small as possible, it leads to the realization of a more comfortable air environment than the air environment of the room where people are absent. Therefore, as in the fourth invention, the deviation between the actual air environment and the target value is calculated for the room in which the person is occupying, and the reference room is set based on the deviation. Due to the limited deviation, the room with the higher need for air conditioning control is set as the reference room. As a result, a comfortable air environment can be realized.

In the fifth aspect of the invention, in the fourth aspect, the measuring means for measuring the power consumption of the electric device provided in each room is provided, and the air conditioning control means is based on the power consumption of the electric device in each room. It is characterized in that it is determined whether or not a person is present in the room.

According to the fifth invention, it is determined whether or not a person is present based on the power consumption of the electric device provided in the room, and the actual air environment and the target value are set for the determined room. Deviation is calculated. As a result, it is not necessary to intentionally install a device such as a motion sensor, and the system can be simplified.

In the sixth invention, in any one of the first to fifth inventions, the storage means attaches time information and stores the deviation in the storage unit, and the reference room setting means is one. It is characterized in that the deviation stored in the storage unit is read out by dividing into a plurality of time zones of the day, and the reference room is set according to the time zone.

In a building such as a house, the number of people in the building differs depending on the time of day (for example, morning time, daytime, night time), and some rooms have people accordingly. It is considered different. In addition, depending on the layout and environment of each room, it is considered that the way and degree of change in the air environment of each room differs depending on the time of day. Therefore, according to the sixth invention, the reference room according to the time zone is set in consideration of the above-mentioned point that the occupancy status differs depending on the time zone. As a result, it is possible to realize fine-tuned air-conditioning control that reflects the activity status of people.

In the seventh invention, in any one of the first to sixth inventions, the storage means attaches day of the week information and stores the deviation in the storage unit, and the reference room setting means is described. The deviation stored in the storage unit is read out together with the day of the week information, and the reference room is set according to the day of the week.

In a building such as a house, it is considered that the people who are at home differ depending on the day of the week, and the rooms where people are occupying are also different accordingly. For example, on weekdays from Monday to Friday, it is possible that there are no people in the building during the day, or even if there are few people, there are people in the building all day on Saturday and Sunday, and vice versa. It is possible that there are few people going out. Therefore, according to the seventh invention, the reference room is set according to the day of the week in consideration of the above-mentioned point that the occupancy status differs depending on the day of the week. As a result, it is possible to realize fine-tuned air-conditioning control that reflects the activity status of people.

Schematic vertical cross-sectional view of a house equipped with an air conditioning system. The figure which shows the electrical composition of an air conditioning system. A flowchart showing a room temperature measurement process using a kitchen as an example. The graph which shows an example of the room temperature change in the room. A table showing an example of how residents are in each room in one day. A flowchart showing an air conditioning control process.

Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. The air conditioning system of the present embodiment is installed in a house which is an example of a building. It is assumed that parents and their children live in the house as residents. The building in which the air conditioning system is installed is not limited to a house, and may be installed in a building such as a commercial building or a store where a plurality of rooms (spaces) are to be air-conditioned.

First, the outline of the house 10 will be described. FIG. 1 is a schematic vertical sectional view of a house 10 provided with an air conditioning system. As shown in FIG. 1, the house 10 is provided with a kitchen 11, a living / dining room (LDK) 12, a washroom 13, and a toilet 14 on the first floor as an indoor room (space). A bedroom 15 and a children's room 16 are provided on the second floor. Each of these rooms 11 to 16 shows a part of the rooms provided in the house 10, and other rooms (not shown) such as a storage room and a corridor are also provided. In addition, a plurality of children's rooms 16 may be provided, or a room such as a guest room may be provided separately.

The rooms 11 to 14 provided on the first floor and the rooms 15 and 16 provided on the second floor lead to a corridor (not shown) provided on each floor. Air flows between the rooms 11 to 16 and the corridor, for example, through a ventilation section (not shown) provided on the entrance / exit door.

Next, the air conditioning system 20 provided in the house 10 will be described.

The air-conditioning system 20 is configured as a whole-building air-conditioning system that air-conditions (cools and heats) a plurality of rooms as air-conditioning targets. At least each of the rooms 11 to 16 shown in FIG. 1 is subject to air conditioning by the air conditioning system 20. In the following, air conditioning for rooms other than these rooms 11 to 16 will be omitted, but the other rooms are also subject to air conditioning.

The air conditioner system 20 includes two air conditioners 21 and 22 and an outdoor unit 23. Each of the air conditioners 21 and 22 is configured as an indoor unit having a cooling function and a heating function, and is connected to an outdoor unit 23 provided outdoors by a connection pipe 29, respectively. Of the two air conditioners 21 and 22, the first air conditioner 21 targets each room 11 to 14 on the first floor for air conditioning. The first air conditioner 21 is provided, for example, in a machine room provided on the first floor, an underfloor space on the first floor, an interfloor space between the first floor and the second floor, and the like. The other second air conditioner 22 targets the rooms 15 and 16 on the second floor for air conditioning. The second air conditioner 22 is provided, for example, in the attic space provided behind the ceiling on the second floor.

Each of the air conditioners 21 and 22 has an intake unit (not shown) that takes in indoor air, and air-conditioning air (cooling air or heating air) is produced by adjusting the temperature of the air taken in from the intake unit. Generate. The intake section is provided in each corridor of, for example, the first floor portion and the second floor portion.

Air conditioning ducts 24 and 25 are connected to the air conditioners 21 and 22, respectively. The first air-conditioning duct 24 connected to the first air-conditioning device 21 extends to each room 11 to 14 on the first floor. The first air conditioning duct 24 is provided in, for example, an underfloor space, and is connected to air outlets 26 provided in each of the rooms 11 to 16. The second air-conditioning duct 25 connected to the second air-conditioning device 22 extends to the rooms 15 and 16 on the second floor. The second air conditioning duct 25 is provided in, for example, an attic space, and is connected to an air outlet 26 provided in each of the rooms 15 and 16.

The conditioned air (cold air or warm air) generated by the air conditioners 21 and 22 is supplied to the air outlets 26 of the rooms 11 to 16 through the air conditioning ducts 24 and 25 connected to the air conditioners 21 and 22. The supplied conditioned air is blown out from each outlet 26 to each room 11-16. As a result, each room 11 to 16 is cooled or heated.

Incidentally, the conditioned air blown out to each of the rooms 11 to 16 then flows into the corridor (not shown) through the ventilation section (not shown) and returns to each of the air conditioners 21 and 22. That is, in each of the first floor portion and the second floor portion, a return path is provided in which the conditioned air blown out to each of the rooms 11 to 16 returns to the air conditioners 21 and 22. Each of the air conditioners 21 and 22 takes in the conditioned air that has returned through the return path, regenerates the conditioned air, and supplies the conditioned air to the rooms 11 to 16. As described above, the air conditioning system 20 is a circulation type that performs air conditioning while circulating indoor air.

Here, by air-conditioning each room 11 to 16 by the air conditioning system 20, the air environment (here, room temperature Tm) of each room 11 to 16 becomes a preset set value (set temperature Ts). Is adjusted to. In this case, when the first air conditioner 21 air-conditions each room 11 to 14 on the first floor, the room temperature Tm of any one of the rooms 11 to 14 becomes the standard for room temperature control. Similarly, when the second air conditioner 22 air-conditions the rooms 15 and 16 on the second floor, the room temperature Tm of any one of the rooms 15 and 16 becomes the standard for room temperature control. In the air conditioning system 20 of the present embodiment, a room that serves as a reference for such room temperature adjustment is automatically selected at predetermined intervals. The configuration related to such control will be described below.

Each room 11 to 16 is provided with a room temperature sensor 27 as an air environment acquisition means. The room temperature sensor 27 is a sensor that detects the room temperature Tm of the rooms 11 to 16 in which the room temperature sensor 27 is provided. The room temperature sensor 27 is provided at a location representing the temperature of the room, such as the wall surface of each room 11-16.

Lighting fixtures 28 such as fluorescent lamps are provided in each of the rooms 11 to 16. The lighting fixture 28 is provided on the ceiling of each room 11 to 16, for example. The luminaire 28 is turned on when the resident stays in each of the rooms 11 to 16, and is turned off when the resident leaves each of the rooms 11 to 16. Therefore, by monitoring the lighting and extinguishing of the lighting fixture 28, it is possible to grasp the occupancy status of each room 11 to 16. It should be noted that the lighting and extinguishing of the lighting fixture 28 can be monitored by grasping the numerical value of the electric power consumed by each lighting fixture 28.

By the way, assuming that the resident is sleeping, the lighting fixture 28 is turned off in the bedroom 15 and the children's room 16 even though the resident is present. Therefore, there may be a case where a resident is present even if the lighting fixture 28 is turned off. However, in the present embodiment, when the resident is sleeping in this way, it is determined that the need for air conditioning is low and the resident is considered to be absent.

Next, the electrical configuration of the air conditioning system 20 will be described with reference to FIG. FIG. 2 is a diagram showing an electrical configuration of the air conditioning system 20.

As shown in FIG. 2, the air conditioning system 20 includes an air conditioning controller 31 as an air conditioning control means. The air-conditioning controller 31 controls the operation of the air-conditioning devices 21 and 22, and includes a well-known microcomputer having a CPU or the like. The air-conditioning controller 31 is built in, for example, the air-conditioning devices 21 and 22, or is configured as an individual control device provided in a machine room or the like.

An operation device 32 (remote control device) is connected to the air conditioning controller 31. The operation device 32 performs various operations related to the operation of the air conditioners 21 and 22, and is provided on the wall surface of the living / dining room 12, for example. The operation device 32 is provided with various operation buttons and the like. For example, an on / off switch for executing (on) or stopping (off) the operation of each of the air conditioners 21 and 22, a changeover switch for switching between cooling operation and heating operation, and a cooling set temperature or a heating set temperature are set. A temperature setting button and the like are provided. The temperature setting by the temperature setting button is performed separately for the first floor part and the second floor part.

When the operation of the operation button or the like of the operation device 32 is performed, a signal corresponding to the operation is input to the air conditioning controller 31. Then, the air-conditioning controller 31 controls the operation of each of the air-conditioning devices 21 and 22 based on the input operation signal. For example, the air-conditioning controller 31 starts the operation of each of the air-conditioning devices 21 and 22 when the on / off switch is turned on, and stops the operation of each of the air-conditioning devices 21 and 22 when the on / off switch is turned off.

When the cooling set temperature or the heating set temperature is input, the air conditioning controller 31 grasps the input set temperature Ts as a target temperature (target value). Of the rooms 11 to 14 on the first floor, a reference room that serves as a reference for controlling the room temperature on the first floor is set. Also on the second floor, of the rooms 15 and 16, a reference room that serves as a reference for room temperature control on the second floor is set. The cooling operation or heating operation of the first air conditioner 21 and the second air conditioner 22 is controlled so that the room temperature Tm of these reference rooms becomes the target temperature, and the air conditioning air is supplied to the rooms 11 to 16.

As the reference room, for example, the living / dining room 12 on the first floor and the children's room 16 on the second floor are set as initial values. The reference room that was set when the operation of each of the air conditioners 21 and 22 was stopped may be set as the initial value.

Each room temperature sensor 27 provided in each room 11 to 16 is connected to the air conditioning controller 31. Room temperature information is sequentially input to the air conditioning controller 31 from each of the room temperature sensors 27. The input room temperature information is stored in the storage unit 31a of the air conditioning controller 31 as room temperature information for each of the rooms 11 to 16. However, the air-conditioning controller 31 stores the room temperature information during the period of stay in the storage unit 31a only in the rooms 11 to 16 in which the resident is determined to be present.

A distribution board 33 is connected to the air conditioning controller 31. The distribution board 33 is connected to the commercial power supply 34 and is also connected to the lighting fixtures 28 provided in the rooms 11 to 16. For each electric power load of home appliances and the like installed in the house 10, household electric power is supplied from a commercial power source 34 via a distribution board 33 including a lighting fixture 28. Therefore, the power consumption Wm of each lighting fixture 28 is sequentially input to the air conditioning controller 31 from the distribution board 33. As a result, the air conditioning controller 31 corresponds to the measuring means.

The air conditioning controller 31 determines whether or not each luminaire 28 is lit, that is, on / off, based on the input power consumption information. In this case, a predetermined threshold value Ws is set from the power consumption value of each luminaire 28, and it is determined that the luminaire 28 whose power consumption Wm exceeds the threshold value Ws is lit (on), and the threshold value Ws is set. It is determined that the lighting fixture 28 that does not exceed the limit is turned off. The air conditioning controller 31 is also a measuring means.

Next, the process executed by the air conditioning controller 31 will be described with reference to the flowcharts shown in FIGS. 3 and 6 and the graphs and tables shown in FIGS. 4 and 5. There are two processes executed by the air conditioning controller 31: the room temperature measurement process shown in FIG. 3 and the air conditioning control process shown in FIG. The air-conditioning controller 31 repeatedly executes each process individually at a predetermined cycle.

First, the room temperature measurement process will be described. In the room temperature measurement process, the room temperature measurement process of each of the rooms 11 to 16 to be air-conditioned is simultaneously performed on the first floor portion and the second floor portion. The room temperature measurement process of the kitchen 11 shown in step S101 will be illustrated and described with reference to FIG.

In this room temperature measurement process, first, in step S201, it is determined whether or not the measurement flag is set. If the measurement flag is not set, the determination is denied and the process proceeds to step S202.

In step S202, it is determined whether or not the power consumption Wm of the lighting fixture 28 in the kitchen 11 exceeds the threshold value Ws. Since the threshold value Ws is set to a value lower than the power consumption Wm when the luminaire 28 is lit, when the power consumption Wm exceeds the threshold Ws, the luminaire 28 is lit and the resident It is considered that he is in the kitchen 11. On the contrary, when the power consumption Wm does not exceed the threshold value Ws, the lighting fixture 28 is turned off, and it is considered that the resident is absent from the kitchen 11.

If the resident is absent from the kitchen 11, the determination in step S202 is denied, and the present process is terminated as it is. As long as the resident remains absent from the kitchen 11, the determinations in steps S201 and S202 will continue to be denied, and no special treatment will be performed on the room temperature Tm of the kitchen 11.

On the other hand, when the resident is absent in the kitchen 11 and is in the room, the determination in step S202 is affirmed in the processing in that cycle, and the process proceeds to step S203. In step S203, the occupancy flag is set. In the following step S204, the room temperature measurement of the kitchen 11 is started. As a result, the room temperature Tm of the kitchen 11 measured by the room temperature sensor 27 is sequentially stored in the storage unit 31a. After that, this process ends. While the resident continues to stay in the kitchen 11, the sequential storage of the room temperature Tm of the kitchen 11 is continued.

That is, once the resident is in the kitchen 11 and the occupancy flag is set, the determination in step S201 in the next cycle is affirmed, and the process proceeds to step S205. In step S205, it is determined whether or not the power consumption Wm of the lighting fixture 28 in the kitchen 11 exceeds the threshold value Ws. If the power consumption Wm exceeds the threshold value Ws, the determination in step S205 is affirmed and the present process is terminated as it is. In this case, since the lighting fixture 28 is lit and the kitchen 11 is still in the room, the room temperature Tm of the kitchen 11 is continuously stored in the storage unit 31a.

On the other hand, when the power consumption Wm does not exceed the threshold value Ws, it is considered that the lighting fixture 28 that had been lit up to that point was turned off, that is, the resident was away from the kitchen 11. In this case, the determination in step S205 is denied and the process proceeds to step S206 to end the measured room temperature measurement. Therefore, the storage of the room temperature Tm of the kitchen 11 measured by the room temperature sensor 27 in the storage unit 31a is completed.

After that, the process proceeds to step S207, and the integrated value ΔT of the temperature difference between the room temperature Tm and the set temperature Ts (target temperature) during the period of stay in the kitchen 11 is obtained. This integrated value ΔT is calculated by the following mathematical formula (1). The calculated integrated value ΔT is sequentially integrated and stored in the storage unit 31a in the subsequent step S208. As a result, the integrated value ΔT of the temperature difference between the room temperature Tm of the kitchen 11 and the set temperature Ts is integrated every time a resident is present in the kitchen 11. This step S208 corresponds to the storage means.

ここで、ｔａは各部屋１１〜１６のうちのいずれかの部屋（ここでの説明ではキッチン１１）において、居住者が在室となった時点、つまり当該部屋の照明器具２８が点灯された時点である。ｔｂは当該部屋において居住者が不在となった時点、つまり部屋の照明器具２８が消灯された時点である。

Here, ta is the time when the resident is in the room in any of the rooms 11 to 16 (kitchen 11 in the explanation here), that is, the time when the lighting fixture 28 in the room is turned on. Is. tb is the time when the resident is absent in the room, that is, the time when the lighting fixture 28 in the room is turned off.

As shown in the graph in FIG. 4, the room temperature Tm is sequentially changed by the air conditioning control from the time when the room starts ta to the time when the room ends tb. The illustrated change in room temperature Tm is an example of the change. The area of the change curve of the room temperature Tm (the shaded portion in FIG. 4) when the set temperature Ts is used as a reference is the integrated value ΔT.

Then, the process proceeds to step S209, and the occupancy flag is cleared. Therefore, in the processing in the next cycle, the determination in step S201 is denied, and the special processing with respect to the room temperature Tm of the kitchen 11 is performed until the resident is in the kitchen 11 again and the lighting fixture 28 is turned on. Not done.

Similar to the room temperature measurement process of the kitchen 11 described above, for the other rooms 12 to 16, it is determined whether or not a resident is present based on the power consumption Wm of the lighting fixture 28, and only while the room is present. The room temperature Tm is measured and sequentially stored in the storage unit 31a. Then, when the period of stay in the room ends, the integrated value ΔT of the temperature difference from the set temperature Ts is calculated, and the integrated value ΔT is sequentially integrated and stored in the storage unit 31a.

Here, FIG. 5 shows an example of the occupancy status of the resident in each of the rooms 11 to 16 of the house 10. The time zone of stay in the room is indicated by diagonal lines. For example, assuming that the family goes out during the day on Sunday, the bedroom 15 and the children's room 16 are in the occupancy state in the morning time before going out due to preparations such as getting up and changing clothes. Also, in the morning hours, the kitchen 11, the living / dining room 12, and the washroom 13 are also present. After that, due to going out, all the rooms 11 to 16 are absent during the day, and when the resident returns home in the evening time, the kitchen 11 and the living dining 12 are in the absent state. The washroom 13 is in a resident state each time it is used. When the bedtime approaches after the night time zone, the children's room 16 and the bedroom 15 are in the occupancy state, and are in the occupancy state until the lights are turned off and the bedtime is approached.

In this way, depending on the daily lifestyle of the resident parents and children, each room 11 to 16 may be in a resident state or absent. When the room is in the room temperature, the room temperature Tm during that period is measured. If the person is absent, the measurement of the room temperature Tm is completed, and the integrated value ΔT of the temperature difference between the room temperature Tm and the set temperature Ts during the period of stay in the room is sequentially integrated.

Next, the air conditioning control process performed separately from the room temperature measurement process described above will be described. In this air conditioning control process, the air conditioning of each room 11 to 16 is controlled so that the room temperature Tm of the reference room becomes the set temperature Ts. The reference room in this air conditioning control is automatically updated and set at predetermined intervals. The contents of the control process will be described in detail below.

As shown in FIG. 6, in the air conditioning control process, first, in step S301, it is determined whether or not the timer is being counted. If the timer is not being counted, the determination here is denied and the process proceeds to step S302 to start counting the timer. Then, the process proceeds to the next step S303. On the other hand, if the timer has already started counting, the determination in step S301 is denied and the process proceeds to step S303.

In step S303, air conditioning control is executed. In the air conditioning control, the cooling operation or the heating operation of the first air conditioner 21 and the second air conditioner 22 is controlled so that the room temperature Tm of the reference room set at that time becomes the set temperature Ts, and each room 11 to 11 Air conditioning air is supplied to 16.

In the following step S304, it is determined whether or not a predetermined time has elapsed from the start of counting. As the predetermined time, it is possible to set an arbitrary period such as one day, several days, or one week. If the predetermined time has not passed yet, the judgment is denied. In this case, since it is not yet time to update the reference room, this process ends without updating the reference room. Therefore, during the predetermined period, the air conditioning control is continued so that the room temperature Tm of the reference room set at that time becomes the set temperature Ts.

On the other hand, when a predetermined time has elapsed from the start of counting, the process shifts to the process of updating the reference room. First, in step S305, the integrated data of the integrated value ΔT stored in the storage unit 31a is acquired by executing the room temperature measurement process described above. Since the integrated data of the integrated value ΔT exists for each of the rooms 11 to 16, the integrated data of all the rooms 11 to 16 are acquired. In step S306, the reference rooms of the first floor portion and the second floor portion are updated based on the acquired integrated data, and a new reference room is set. This step S306 corresponds to the reference room setting means.

In setting a new reference room, the following processing is carried out. First, for the first floor portion, the integrated amount (temperature deviation) of the integrated value ΔT for each room 11 to 14 is compared in magnitude. Select the room with the largest integrated amount, that is, the room with the largest integrated amount of temperature difference between the room temperature Tm and the set temperature Ts within a predetermined period (for example, kitchen 11), and use that room as the reference room for the first floor. Set to. Similarly, for the second floor portion, the magnitude of the integrated amount (temperature deviation) of the integrated value ΔT for each of the rooms 15 and 16 is compared. Select the room with the largest integrated amount, that is, the room with the largest integrated amount of temperature difference between the room temperature Tm and the set temperature Ts during the predetermined period (for example, children's room 16), and use that room as the reference room on the second floor. Set anew.

Next, the integrated data of the integrated value ΔT stored in the storage unit 31a is reset in step S307, and the timer is reset in the subsequent step S308.

In this way, the room with the largest value is set as the new reference room based on the integrated amount of the integrated value ΔT calculated by the temperature difference between the room temperature Tm and the set temperature Ts for each predetermined period. The air conditioning control is executed so that the room temperature Tm of the updated reference room becomes the set temperature Ts until the predetermined period of (1) elapses.

According to the present embodiment described in detail above, the following excellent effects are obtained.

(1) The air-conditioning control status (for example, cooling ability) differs for each room due to the difference in the environment of each room 11-16, and the amount of deviation (temperature difference) between the actual room temperature Tm and the target temperature in each room 11-16. ) May be different. In this regard, according to the above configuration of the present embodiment, when the entire building is air-conditioned, the integrated value ΔT of the temperature difference between the actual room temperature Tm and the set temperature Ts is integrated and sequentially stored in the storage unit 31a. To. Then, the reference room is set at a predetermined cycle based on the integrated amount for each room. As a result, a comfortable air environment can be formed without adopting a complicated mechanism such as separately providing an on-off valve as in the prior art.

(2) The value obtained by integrating the integrated value ΔT of the temperature difference between the room temperature Tm and the set temperature Ts is obtained for each room, the integrated amount is compared in magnitude, and the room with the largest integrated amount is set as the reference room. The largest integrated amount means that the room requires the most air-conditioning control to the set temperature Ts. Therefore, the comfort can be further improved by performing the air-conditioning control in the entire building according to the room.

(3) In order to realize a comfortable air environment, it is required to minimize the temperature difference between the room temperature Tm and the set temperature Ts while the person is in the room. For example, the toilet 14 is often arranged in a place with poor sunlight, and the temperature difference between the room temperature Tm and the set temperature Ts tends to be large especially in winter. However, since the resident's staying time is relatively short, the integrated value ΔT does not become so large. On the other hand, in the living / dining room 12, the living time is relatively long, the number of people in the room and the number of electric devices used are also large, which affects the room temperature Tm, and the integrated value ΔT may be large. Conceivable. Therefore, it is highly necessary to control the room temperature Tm of the toilet 14 only by looking at the temperature difference, but based on the integrated value ΔT considering the occupancy situation, the living dining 12 controls the air conditioning more than the toilet 14. There is a high need.

Therefore, when controlling the air conditioning, instead of simply selecting the reference room based on the temperature difference between the room temperature Tm and the set temperature Ts, the element that a person is present is taken into consideration and the person is present. The integrated value ΔT of the temperature difference during the operation is calculated, and the reference room is set by using the integrated value ΔT. Then, the room having the largest integrated amount of the integrated value ΔT is selected as the room in which the temperature control to the set temperature Ts is most required, and is set as the reference room. Thereby, a comfortable air environment can be formed.

(4) Whether or not a resident is present in the room is determined based on the power consumption Wm of the lighting fixture 28. The lighting fixture 28 is turned on when the rooms 11 to 16 are used, and is not turned off only by temporarily leaving the rooms 11 to 16, but is turned off when the rooms 11 to 16 are not used for a while. Therefore, as compared with the motion sensor and other electric devices installed in the rooms 11 to 16, it is possible to more preferably determine whether or not a person is present in the room.

(5) The lifestyle of the residents of the house 10 is expected to change in the future. For example, as residents grow older and their children grow, family lifestyles change. For example, if a child studies abroad for a predetermined period of time, the period of stay in the children's room 16 that had been long until then will be shortened, and the period of stay in the bedroom 15 will be longer instead. Room conditions also change. Even if there is such a change, the room that requires the most room temperature control as the reference room is automatically changed, so that it is possible to easily follow the change in lifestyle.

(6) In executing the air conditioning control, the period of stay of the resident in each room 11 to 16 is determined. By repeating such occupancy determination, the behavior pattern of the resident in the house 10 such as which room of each room 11 to 16 the resident is often occupying at which time zone can be obtained. I can grasp it. Since it is possible to predict the future behavior of the resident from the grasped behavior pattern, it can be used for another new air conditioning control, such as giving priority to the air conditioning of the rooms 11 to 16 where the room is scheduled to be located. it can.

The content is not limited to the description of the above-described embodiment, and may be implemented as follows, for example. Incidentally, the following configuration of another embodiment may be applied individually to the configuration of the above embodiment, or may be applied in combination with each other.

(A) In the above embodiment, the air conditioning controller 31 executes the room temperature measurement process and the air conditioning control process, but these control processes may be executed by the cloud server. As an example of the configuration in this case, the room temperature Tm of each room 11 to 16 and the power consumption Wm of the lighting fixture 28 are collected by a home controller or a home gateway such as a HEMS (home energy management system) provided in the house 10 and the Internet. Send these data to the cloud server through. Further, the cloud server may be configured to control the air conditioners 21 and 22 through the Internet or a communication network provided in the house 10.

If the air conditioning control is executed by the cloud server in this way, the resident can use a portable device such as a mobile phone to set the predetermined period and the set temperature Ts until the next reference room is updated, and the cloud server can be used from outside. You can access and change it at any time. In this alternative configuration, the cloud server corresponds to the air conditioning control means, the reference room setting means, and the storage means.

(B) In the above embodiment, whether or not a resident is present in each of the rooms 11 to 16 is determined based on the power consumption Wm of the lighting fixture 28. For example, in the kitchen 11, the IH heater is used. The judgment may be made based on the power consumption Wm of another electric device, such as the judgment based on the power consumption Wm. Since the IH heater is connected to the distribution board 33 by a dedicated power circuit, it is easy to grasp the power consumption Wm. Further, instead of the power consumption Wm of the electric device, it may be determined whether or not the re-engagement is performed by a sensor such as a human detection sensor. In addition, it may be determined whether or not the room is present based on the power consumption amount instead of the power consumption Wm of the lighting fixture 28.

(C) In the above embodiment, the first air conditioner 21 that targets each room 11 to 14 on the first floor and the second air conditioner 22 that targets each room 15 and 16 on the second floor It is provided in the house 10. Alternatively, one air conditioner may be configured to air-condition all rooms 11 to 16 on each floor. In this case, the one air conditioner is provided in the space behind the ceiling or in the machine room of the house 10.

(D) In the above embodiment, the air conditioners 21 and 22 have a cooling function and a heating function, but the air conditioners 21 and 22 may have only a cooling function or only a heating function.

(E) In the above embodiment, the set temperature Ts is set by the operating device 32, and the air conditioning is controlled with the set temperature Ts as the target temperature. However, in consideration of the month, the season, the area where the building exists, and the like, A predetermined temperature may be set as a target temperature in advance.

(F) In the above embodiment, all the rooms 11 to 16 to be air-conditioned are selected as the reference rooms, but even if the temperature difference is the largest, such as the toilet 14, the resident For rooms with limited staying time, air conditioning control to the target temperature is not always the most necessary. Therefore, a room that does not need to be set as a reference room may be excluded from the setting as a reference room. As a result, the reference room is set only in the room where the need for air conditioning control is higher, so that the practicality of air conditioning control can be enhanced.

(G) In the above embodiment, the integrated amount obtained by integrating the integrated value ΔT of the temperature difference between the room temperature Tm of each room 11 to 16 and the set temperature Ts is defined as the temperature deviation, and the magnitude of the integrated amount is compared to determine the reference room. It is set. Instead of this, an average value may be taken for the temperature difference between the room temperature Tm of each room 11 to 16 and the set temperature Ts, and the average value may be compared as a temperature deviation to set the reference room.

(H) In the above embodiment, the predetermined period is not further divided, but the house 10 is set according to the time zone of the day (for example, morning time zone, daytime zone, night time zone). It is possible that the people who are in the room are different, and the rooms in which the people are in are different accordingly. Further, it is considered that the method and degree of room temperature change of each room 11 to 16 differs depending on the time zone depending on the arrangement and environment of each room 11 to 16. Furthermore, it is conceivable that the people who are at home differ depending on the day of the week, and the rooms in which the people are present also differ accordingly. For example, on weekdays from Monday to Friday, it is possible that there are no people in house 10 during the day, or even if there are few people, there are people in house 10 all day on Saturday and Sunday, and vice versa. In addition, it is possible that there are few people going out.

Therefore, when integrating the integrated value ΔT of the temperature difference, time information and day of the week information are added and stored in the storage unit 31a. Then, when setting the reference room for each predetermined period, the integrated data is read out by dividing the day into a plurality of time zones, or the integrated data is read out for each day of the week, and the reference room is set according to the time zone and the day of the week. You may set it. As a result, the reference room is set according to the time zone and the day of the week in consideration of the activity status of the person for each time zone and the day of the week, so that fine air conditioning control can be realized.

(I) In the above embodiment, the integrated value ΔT of the temperature difference between the actual room temperature Tm and the set temperature Ts is integrated, and the reference room is set based on the integrated amount for each room. It may be used to set a reference room. For example, the predetermined humidity (60% humidity as an example) is set as the target value, or the humidity of the reference room at that time is set as the target value, and the integrated value ΔH of the humidity difference from the actual humidity of each room 11 to 16 is set. The total may be calculated and the reference room may be set based on the total amount for each room. Further, the reference room may be set by using both the temperature difference and the humidity difference.

10 ... Residential (building), 11 ... Kitchen (room), 12 ... Living dining (room), 13 ... Washroom (room), 14 ... Toilet (room), 15 ... Bedroom (room), 16 ... Children's room (room) ), 20 ... Air conditioning system, 27 ... Room temperature sensor (temperature acquisition means), 28 ... Lighting equipment (electrical equipment), 31 ... Air conditioning controller (air conditioning control means, reference room setting means, storage means), 31a ... Storage unit.

Claims (6)

An air-conditioning system for a building in which a plurality of rooms are targeted for air-conditioning and an air-conditioning device for cooling or heating each room is provided via an air-conditioning duct.
An air environment acquisition means for acquiring the air environment of each room,
A reference room setting means for setting one of the plurality of rooms as a reference room, and
An air conditioning control means that controls the air conditioner so that the air environment acquired by the air environment acquisition means in the reference room set by the reference room setting means becomes a target value.
At the time of air-conditioning control by the air-conditioning control means , the air environment during the period of stay in the air environment information acquired by the air environment acquisition means for the room in which a person is present among the plurality of rooms. A storage means for sequentially storing information in a storage unit,
With
The reference room setting means sets the reference room at a predetermined cycle based on the deviation information between the air environment information during the period of stay of the person in each room and the target value stored in the storage unit. The building's air conditioning system is characterized by that. The air conditioning system for a building according to claim 1, wherein the reference room setting means compares the magnitude of the deviation information within a predetermined period and sets the room having the largest deviation information as the reference room. The plurality of rooms include a room that can be set as the reference room and a room that cannot be set as the reference room.
The air conditioning system for a building according to claim 2, wherein the reference room setting means sets the room having the largest deviation information among the rooms that can be set as the reference room as the reference room. A measuring means for measuring the power consumption of the electric equipment provided in each room is provided.
The building according to any one of claims 1 to 3, wherein the air conditioning control means determines whether or not a person is present in each room based on the power consumption of the electric device. Air conditioning system. The storage means attaches time information and stores the air environment information in the storage unit.
The reference room setting means is characterized in that the air environment information stored in the storage unit is read out by dividing into a plurality of time zones of the day, and the reference room is set according to the time zone. The air conditioning system for a building according to any one of claims 1 to 4. The storage means attaches day of the week information, stores the air environment information in the storage unit, and stores the air environment information in the storage unit.
Any of claims 1 to 5 , wherein the reference room setting means reads out the air environment information stored in the storage unit together with the day of the week information, and sets the reference room according to the day of the week. The building air conditioning system according to item 1.

Images