WO2014162509A1

WO2014162509A1 - Air conditioner control system and air conditioner control method

Info

Publication number: WO2014162509A1
Application number: PCT/JP2013/060049
Authority: WO
Inventors: 邦彰鳥山
Original assignee: 三菱電機株式会社
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2014-10-09
Also published as: JPWO2014162509A1

Abstract

When the temperature difference between a predetermined set temperature and the temperature of an air-conditioned space air-conditioned by an indoor unit (31) is greater than a predetermined threshold value, a system (A) calculates the thermal load of the air-conditioned space and, on the basis of the thermal load, determines the content of a correction operation for correcting the operational state of the indoor unit (31). The system permits or denies the determined correction operation content by taking into account the overall operation of the air-conditioning devices, and when the correction operation content is permitted the system executes a correction operation for the air-conditioning devices on the basis of the determined correction operation content.

Description

Air conditioner control system and air conditioner control method

The present invention relates to an air conditioner control system and an air conditioner control method capable of realizing energy saving without losing indoor comfort.

In an air conditioner control system, in general, the actual air conditioning load based on the indoor target temperature is made to correspond to the outdoor unit operating load, and the outdoor unit operating capacity is limited to realize energy saving control. This air conditioner control system has a function that considers the future air conditioning load, promotes energy savings that reduce power consumption, and proposes a technology that suppresses the decline in indoor comfort. (For example, refer to Patent Document 1).

A control system for an air conditioner described in Patent Document 1 predicts a future air conditioning load from a future outside air temperature based on weather data, determines an operating capacity of the outdoor unit based on the predicted future air conditioning load, and Is set as an upper limit value that is reduced by a predetermined amount. Moreover, the control system of the air conditioner described in Patent Document 1 operates at the actually set upper limit value, and when the room temperature deviates from the preset temperature range, the upper limit value is increased. If it is within the range, the upper limit value is corrected so as to be reduced, and the temperature is kept within a preset temperature range, thereby realizing energy saving control without impairing comfort.

JP 2011-106763 A (refer to page 10, FIG. 3 etc.)

The technology described in Patent Document 1 shows a problem regarding comfort when realizing energy-saving control of an air conditioner, and realizes comfort and energy-saving control at the same time. However, in the technique described in Patent Document 1, since the air conditioning load depends on the outside air temperature, only the outside air temperature fluctuation is regarded as the air conditioning load, and control is performed. The load is not considered at all. Therefore, energy saving operation cannot be realized when there is a temperature difference between rooms even in the same building.

The present invention has been made to solve the above-described problems. By calculating in detail the air conditioning load (heat load) for each room, the energy saving operation of the entire building can be performed without impairing the comfort of each room. It is an object of the present invention to provide an air conditioner control system and an air conditioner control method that are realized.

The control system for an air conditioner according to the present invention is a control system for one or a plurality of air conditioners, and the temperature of an air-conditioning target space that is air-conditioned by an indoor unit that constitutes the air conditioner is set in advance. When the temperature difference from the set temperature is larger than a preset threshold value, a correction operation for calculating the heat load of the air-conditioning target space and correcting the operation state of the indoor unit based on the heat load The content is determined, the entire operation of the air conditioner is taken into consideration, and the determined corrected operation content is permitted or denied, and when permitted, the corrected operation of the air conditioner is determined based on the determined corrected operation content. Is to execute.

The control method for an air conditioner according to the present invention is a control method for a single air conditioner that detects the temperature of an air-conditioning target space that is air-conditioned by an indoor unit that constitutes the air conditioner. The temperature difference between the temperature of the air-conditioning target space and a preset temperature is compared with a preset threshold value, and when the temperature difference is larger than the threshold value, the heat load of the air-conditioning target space is The mode is shifted to a calculation mode, and in the mode, the correction operation content for correcting the operation state of the indoor unit is determined based on the thermal load, and the correction is determined in consideration of the overall operation of the air conditioner When the operation content is permitted or denied, when it is permitted, the corrected operation of the air conditioner is executed based on the determined corrected operation content. When the operation content is denied, the priority order of the corrected operation content is stepwise. To It is what determines the operation contents again.

A control method for an air conditioner according to the present invention is a control method for a plurality of systems of air conditioners, and detects a temperature of an air-conditioning target space that is air-conditioned by an indoor unit that constitutes the air conditioner. The temperature difference between the temperature of the air-conditioning target space and a preset temperature is compared with a preset threshold value, and when the temperature difference is larger than the threshold value, the heat load of the air-conditioning target space is A management system that shifts to a calculation mode, determines correction operation contents for correcting the operation state of the indoor unit based on the thermal load in the mode, and bundles a controller that controls each air conditioner of each system In consideration of the overall operation of the air conditioners of all systems, the determined corrected operation content is permitted or denied, and when permitted by the management system, the determined corrected operation content is Based perform the correction operation of the air conditioner, when the denial, said correcting operation content priority stepwise lowered, is what determines the correct operation content again.

According to the air conditioner control system and the air conditioner control method of the present invention, the air conditioning load (heat load) is calculated for each air conditioning target space, and the correction operation is executed based on the air conditioning load. Therefore, the useless air-conditioning effect can be suppressed in the entire building, and power consumption can be suppressed without impairing indoor comfort.

It is a schematic block diagram which shows roughly an example of a structure of the control system of the air conditioner which concerns on Embodiment 1 of this invention. It is the functional block diagram which showed the function which the indoor unit controller mounted in the indoor unit of the control system of the air conditioner concerning Embodiment 1 of this invention has. It shows the set temperature and room temperature of the room at an arbitrary time. It is a flowchart which shows the flow of the process at the time of "the air-conditioning load measurement mode" which the control system of the air conditioner concerning Embodiment 1 of this invention performs. It is a figure which shows the room temperature change in the "air-conditioning load measurement mode" which the control system of the air conditioner which concerns on Embodiment 1 of this invention performs. It is a figure which shows an example of the correction | amendment operation | movement content by the thermal load (load frequency) which the indoor unit controller of the control system of the air conditioner which concerns on Embodiment 1 of this invention calculated. It is a flowchart showing the process which determines the correction | amendment driving | operation content by the indoor unit controller of the control system of the air conditioner which concerns on Embodiment 1 of this invention. It is the timing chart which showed the continuity of the control system which the control system of the air conditioner which concerns on Embodiment 1 of this invention performs. It is a schematic block diagram which shows roughly an example of a structure of the control system of the air conditioner which concerns on Embodiment 2 of this invention. It is a schematic block diagram which shows roughly an example of a structure of the control system of the air conditioner which concerns on Embodiment 3 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the following drawings including FIG. 1, each structure is shown notionally. Further, in the following drawings including FIG. 1, the same reference numerals denote the same or equivalent parts, and this is common throughout the entire specification. Furthermore, the forms of the constituent elements shown in the entire specification are merely examples, and are not limited to these descriptions.

Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram schematically showing an example of the configuration of an air conditioner control system (hereinafter referred to as system A) according to Embodiment 1 of the present invention. The system A will be described with reference to FIG. In FIG. 1, a single air conditioner controlled by the air conditioning controller 40 in the system A is illustrated as an example. The air conditioner controlled by the system A is composed of indoor units installed in a plurality of rooms (air-conditioning target spaces) and outdoor units (one in FIG. 1) connected to these indoor units. . That is, the system A controls one system of air conditioner with one air conditioning controller 40. The system indicates a refrigerant system.

FIG. 1 shows an example in which two indoor units are installed in three rooms. Specifically,

indoor units

31a and 31b are installed in the room 30a,

indoor units

31c and 31d are installed in the room 30b, and

indoor units

31e and 31f are installed in the room 30c. The

indoor units

31a, 31b, 31c, 31d, 31e, and 31f are connected to one outdoor unit 32. In the following description, when it is not necessary to separate the

indoor units

31a, 31b, 31c, 31d, 31e, and 31f, these may be collectively referred to as the indoor unit 31. In the following description, when it is not necessary to separate the

rooms

30a, 30b, and 30c, these may be collectively referred to as the room 30.

Note that the indoor unit 31 and the outdoor unit 32 are connected by a refrigerant pipe (not shown). Refrigerant piping connects each component device (compressor, outdoor heat exchanger, expansion device, indoor heat exchanger) of the refrigeration cycle mounted on the indoor unit 31 and the outdoor unit 32. And cooling or heating can be performed by circulating a refrigerant | coolant to each container apparatus of a refrigerating cycle.

First, the indoor unit 31 will be described. FIG. 2 is a functional block diagram showing the functions of the indoor unit controller 6 mounted on the indoor unit 31. The indoor unit 31 has an indoor unit controller 6. The indoor unit controller 6 includes at least a function unit 1, a detection unit 2, an arithmetic processing unit 3, a storage unit 4, and a communication unit 5.

The functional unit 1 has a function of controlling the basic operation of the air conditioner, and also has a function of setting the operating state of the indoor unit 31 in an “air conditioning load measurement mode” described later.

The detection unit 2 has a function of detecting a suction thermometer for measuring the suction temperature of the indoor unit 31, a remote control room temperature meter held by the remote controller, and a room temperature acquired by the external room temperature meter.
In addition, although illustration is abbreviate | omitted about a suction thermometer, a remote control room temperature meter, and an external room temperature meter, a remote control room temperature meter is abbreviate | omitted in the position which can measure the temperature of the indoor air suck | inhaled by the indoor unit 31. The remote room temperature meter may be installed at a position where the room temperature of the room 30 can be measured. The room temperature measured by the suction thermometer, the remote controller room temperature meter, and the external room temperature meter is transmitted to the detection unit 2 by wire or wirelessly. In the first embodiment, a case where the room temperature acquired by the suction thermometer is used will be described as an example.

The arithmetic processing unit 3 has a function of performing arithmetic processing on information transmitted from the function unit 1 and transmitting the processed result to the storage unit 4 and the function unit 1.
The storage unit 4 has a function of storing the result of the arithmetic processing performed by the arithmetic processing unit 3 and transmitting the stored data to the functional unit 1 when a request for acquiring necessary information is generated from the functional unit 1. .
The communication unit 5 has a function of transmitting information from the function unit 1 to the other indoor units, the outdoor unit 32, and the air conditioning controller 40, and receiving information transmitted from these units.

Next, the “air conditioning load measurement mode” will be described. FIG. 3 shows the set temperature and room temperature of the

rooms

30a, 30b, 30c, and 30d at an arbitrary time. FIG. 4 is a flowchart showing a process flow in the “air conditioning load measurement mode” executed by the system A. FIG. 5 is a diagram illustrating a change in room temperature during the “air conditioning load measurement mode”. In FIG. 3, it is assumed that indoor units 31 constituting one system of air conditioner controlled by the air conditioning controller 40 are installed in the

rooms

30a, 30b, 30c, and 30d. In the following description, when it is not necessary to separate the

rooms

30a, 30b, 30c, and 30d, they may be collectively referred to as the room 30 as described above.

FIG. 3 shows an example in which the set temperature is set to 24 ° C. in the entire room 30. However, even if the set temperature is set to 24 ° C. in all the rooms 30, the room temperature of all the rooms is not necessarily 24 ° C. Specifically, as shown in FIG. 3, even if the set temperature is set to 24 ° C., the room temperature of the room 30a is 21 ° C., the room temperature of the room 30b is 23 ° C., the room temperature of the room 30c is 24 ° C., and the room 30d. In some cases, the room temperature becomes 27 ° C. This is because the heat load varies with room and time.

That is, in the room 30a, the room temperature is 21 ° C. and 3 ° C. lower than the set temperature, and in the room 30d, the room temperature is 27 ° C. and 3 ° C. higher than the set temperature. It can be said that there are many heat sources in the space, and the room 30d has a higher heat load than the room 30a.

Referring to FIG. 4, the process flow in the “air conditioning load measurement mode” will be described. The “air conditioning load measurement mode” is executed when the indoor unit 31 is in an operating state. Whether the indoor unit 31 is in an operating state is determined by the indoor unit controller 6. Whether the indoor unit 31 is in an operating state may be determined by the air conditioning controller 40 that has received information from the indoor unit controller 6. Moreover, although the steps described below are described as being performed by the indoor unit controller 6, these steps may also be executed by the air conditioning controller 40 that has received information from the indoor unit controller 6.

When the indoor unit 31 is in the operating state (step S1), the difference between the set temperature and the room temperature is measured by the indoor unit controller 6, and switching to the “air conditioning load measurement mode” is performed according to the magnitude of the difference. (Step S2). The “air conditioning load measurement mode” is switched according to the magnitude of the difference between the set temperature and the room temperature, but the temperature difference at that time can be arbitrarily determined.

When the indoor unit controller 6 determines that the difference between the set temperature and the room temperature is larger than a preset threshold (for example, there is a temperature difference of 3 ° C. or more) (step S2; large), the indoor unit 31 The operation state is shifted to the “air conditioning load measurement mode” (step S3). Here, the threshold value may be a value defined by the user or, of course, a value set by the indoor unit controller 6 as an optimum value. The indoor unit controller 6 calculates the thermal load as the load frequency from the result of the “air conditioning load measurement mode” (step S4). Then, the indoor unit controller 6 corrects the current operation state and the current operation setting of the indoor unit 31 or the outdoor unit 32, and reduces the difference between the set temperature and the room temperature (step S5).

The air conditioning controller 40 or the indoor unit controller 6 performs correction by changing the current operation state of the indoor unit 31 or the outdoor unit 32 and the current operation setting. Adjustment, wind direction, thermo-ON time, set temperature, etc. are corrected. The set temperature here is not displayed on a remote controller or the like that can be confirmed by the user, but is a corrected set temperature that only the air conditioning controller 40 or the indoor unit controller 6 has. In the case of the outdoor unit 32, correction such as lowering the operating frequency of the compressor and reducing the capacity of the outdoor unit 32 may be performed.

“Air conditioning load measurement mode” will be described in detail with reference to FIG. The indoor unit controller 6 completely stops the operation of the indoor unit 31 that has shifted to the “air conditioning load measurement mode”. When the operation of the indoor unit 31 is stopped, the room temperature then approaches the set temperature over time due to the heat source in the space of the room 30. For example, in the case where the room temperature is 3 ° C. lower than the set temperature as in the room 30a shown in FIG. 3, the room temperature gradually increases by stopping the indoor unit 31 in the room 30a. Approaching. The indoor unit controller 6 calculates the thermal load of the space as the load frequency based on the time to reach the set temperature at this time.

For example, if the temperature difference between the set temperature and room temperature is 3 ° C. (set temperature T−ΔT ≧ 3 ° C. shown in FIG. 5), and the room temperature reaches the set temperature over 30 minutes (shown in FIG. 5) Arrival time t = 30 minutes), the indoor unit controller 6 calculates the load frequency as 3 (° C.) × 30 (minutes) = 90. That is, the “air conditioning load measurement mode” is a mode in which the load frequency is calculated from how long the current room temperature approaches the set temperature. And the indoor unit controller 6 performs the correction | amendment driving | operation of the indoor unit 31 or the outdoor unit 32 according to this calculated load frequency.

Next, the correction operation will be described with reference to FIGS. FIG. 6 is a diagram illustrating an example of the corrected operation content based on the thermal load (load frequency) calculated by the indoor unit controller 6. FIG. 7 is a flowchart showing a process of determining the corrected operation content by the indoor unit controller 6. In FIG. 6, eight types of correction operation contents A to H are given as examples.

The indoor unit controller 6 determines the correction operation content based on the heat load calculated in the “air conditioning load measurement mode”, and corrects the operation status of the indoor unit 31 or the outdoor unit 32. The thermal load (here, A to H) is defined by a numerical value and is stored as a database in the storage unit 4 of the indoor unit controller 6. The association between the numerical value and the corrected operation content, that is, the association can be arbitrarily determined by the user, but is not limited to this. Of course, the indoor unit controller 6 selects the optimum one and sets the corrected operation content. It can also be determined.

For example, in order to realize energy saving, it is conceivable to raise the priority order of the correction operation contents that reduce the capacity of the compressor. However, depending on the set temperature and room temperature of the room 30 managed by the indoor unit controller 6 connected to the system of the same outdoor unit 32, a higher priority is not necessarily given priority. The operation state is determined in consideration of all the states of the room 30 managed by the indoor unit controller 6 connected to. In addition to lowering the capacity of the compressor, a change in set temperature (correction set temperature change), adjustment of the air volume of the blower, blowing time of the blower, air direction of the conditioned air, and the like can be considered as the details of the correction operation. However, the content of FIG. 6 is an example to the last, and is not limited to the content of description.

The correction operation determination process will be described with reference to FIG. The process for determining the correct operation is executed by the air conditioning controller 40 and the indoor unit controller 6.

The indoor unit controller 6 first executes the “air conditioning load prediction mode” as described above (step S11). Thereby, the indoor unit controller 6 calculates the load frequency (step S12). Then, after calculating the load frequency, the indoor unit controller 6 determines the correction operation content (step S13). At this time, the indoor unit controller 6 determines the corrected operation content having a high priority, but asks the air conditioning controller 40 for permission or denial before actually operating.

When the corrected operation content is permitted by the air conditioning controller 40 (step S14), the indoor unit controller 6 executes the corrected operation based on the corrected operation content described in FIG. 6 (step S16).
On the other hand, when the corrected operation content is denied by the air conditioning controller 40 (step S15), the indoor unit controller 6 lowers the priority by one step, determines the corrected operation content, and asks the air conditioning controller 40 to permit or deny it again. (Step S13).
This process is executed in a step-down order of priority until the corrected operation content is determined.

The operation of system A will be described with reference to FIG. FIG. 8 is a timing chart showing the continuity of the control system executed by the system A. The room temperature is measured at regular intervals, and the thermal load is calculated at regular intervals.

When the room temperature (T−ΔT) is larger than the preset threshold value with respect to the set temperature T, the indoor unit controller 6 shifts to the “air conditioning load side measurement mode” and stops the operation of the indoor unit 31.
With the indoor unit 31 stopped, the room temperature increases by ΔT over the time ta (t2-t1), and the set temperature = room temperature. At this time, the indoor unit controller 6 and the air conditioning controller 40 calculate the load frequency and correct the operation state.
When the operation of the indoor unit 31 is resumed with the operation state corrected, the difference between the room temperature and the set temperature is measured again at the time set by the user. If the temperature difference is not improved, the “air conditioning load measurement mode” The operation correction content is determined again.

In the system A configured as described above, first, the switching to the “air conditioning load measurement mode” is determined by the function unit 1 from the temperature difference between the room temperature detected by the detection unit 2 and the set temperature. Next, the heat load is calculated as the load frequency from the data acquired by the arithmetic processing unit 3 in the “air conditioning load measurement mode”. The storage unit 4 holds a relationship necessary for determining the corrected operation content based on the calculated thermal load. Next, the indoor unit controller 6 transmits the corrected operation content determined via the communication unit 5 to the air conditioning controller 40 and receives permission or denial. The air conditioning controller 40 permits or denies the execution of the correction operation in consideration of the operation of the entire system controlled by the indoor operation controller 6, and transmits the result to the indoor unit controller 6. To do.

“Considering the operation of the entire system controlled by itself” will be described with reference to FIGS.
As shown in FIG. 1, the outdoor unit 32 is connected to six indoor units 31. Since the outdoor unit 32 is equipped with a compressor, when “A reduce the capacity of the compressor (−5%)” is selected in the correction operation content shown in FIG. Will be affected.

For example, when the room 30a, the room 30b, and the room 30c are all at a room temperature lower than the set temperature (low thermal load), it is effective to reduce the compressor capacity. On the other hand, when the room temperature is higher than the set temperature only in the room 30a (high heat load), the indoor unit controller 6 of the indoor unit 31 existing in the room 30b and the room 30c determines that the capacity of the compressor is lowered, and the compression is performed. If the capacity of the machine is lowered, the room temperature of the room 30a will be further increased. In such a case, even if the air conditioning controller 40 receives a request from the

room

30b or 30c, the air conditioning controller 40 determines that the comfort of the room 30a is impaired if the corrected operation content is executed as requested, and denies the request. To do.

In other words, “considering the operation of the entire system controlled by itself” means the details of the operation correction that affects the entire system. In the case of FIG. 6, the capacity of the compressors A to D is reduced. Is applicable. It should be noted that correction operation contents that do not affect other rooms (E to H in FIG. 6) can be executed by the respective indoor units 31, so that “the operation of the entire system controlled by itself is considered. It does not have to be included in the object of consideration.

Therefore, according to the system A, the difference between the set temperature for each room 30 to be controlled and the room temperature can be reduced, and there is little waste in all the systems (the indoor unit 31 and the outdoor unit 32) controlled by the air conditioning controller 40. Air-conditioning operation control is possible, and energy-saving operation can be realized at the same time without impairing the comfort of each room 30.

In addition, although Embodiment 1 demonstrated the operation control in the case of air_conditionaing | cooling operation, it is not limited to this content, The same operation control can be performed also at the time of heating operation. In the case of heating operation, the room temperature change in FIG. In this way, it is possible to achieve both improvement of comfort and realization of energy saving operation even during heating operation. The same applies to the following second and third embodiments.

Embodiment 2. FIG.
FIG. 9 is a schematic configuration diagram schematically showing an example of the configuration of an air conditioner control system (hereinafter referred to as system B) according to Embodiment 2 of the present invention. The system B will be described with reference to FIG. In the second embodiment, differences from the first embodiment will be mainly described, and the same parts as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

FIG. 9 shows an example of a single air conditioner controlled by the air conditioning controller 40 in the system B. The air conditioner controlled by the system B includes an indoor unit 31 installed in a plurality of rooms 30 (air-conditioning target spaces), and an outdoor unit 32 (one in FIG. 9) connected to the indoor units 31. It is configured. That is, in the system B, one air conditioner is controlled by one air conditioning controller 40.

The difference between the system B and the system A is that the means for acquiring the room temperature uses the external thermometer 20 (external thermometers 20a to 20c) instead of the suction thermometer of the indoor unit 31. The external thermometer may be a remote control thermometer, an external room temperature meter, or any other device that can measure room temperature. By using the external thermometer 20, the thermal load can be calculated from the difference between the set temperature and room temperature for an arbitrary place in the room.

Therefore, according to the system B, similarly to the system A, the difference between the set temperature for each room 30 to be controlled and the room temperature can be reduced, and the system controlled by the air conditioning controller 40 (indoor unit 31 and outdoor unit 32). Therefore, it is possible to perform an energy-saving operation at the same time without impairing the comfort of each room 30.

Embodiment 3 FIG.
FIG. 10 is a schematic configuration diagram schematically showing an example of a configuration of an air conditioner control system (hereinafter, referred to as system C) according to Embodiment 3 of the present invention. The system C will be described based on FIG. In the third embodiment, differences from the first embodiment or the second embodiment will be mainly described, and the same parts as those in the first and second embodiments will be denoted by the same reference numerals. Shall be omitted.

The difference between the system A and the system B of the system C is that it has a management system 50 that bundles a plurality of air conditioning controllers 40. In other words, the system C can manage and control a plurality of air conditioners via the air conditioning controller 40 that controls each of the air conditioners.

FIG. 10 shows an example in which the four air conditioning controllers 40a to 40d are managed by the management system 50. The indoor unit 31A and the outdoor unit 32A are connected to the air conditioning controller 40a, the indoor unit 31B and the outdoor unit 32B are connected to the air conditioning controller 40b, and the indoor unit 31C and the outdoor unit 32C are connected to the air conditioning controller 40c. An indoor unit 31D and an outdoor unit 32D are connected to the air conditioning controller 40d. The indoor units 31A to 31D are the same as the indoor unit 31 described in the first embodiment, and the outdoor units 32A to 32D are the same as the outdoor unit 32 described in the first embodiment.

The management system 50 is connected to each air conditioning controller 40 via a communication line (for example, a LAN (Local Area Network). The management system 50 is installed in the same building as each air conditioning controller 40, for example. Alternatively, it may be installed in a different building as long as it is within the Ethernet (registered trademark), that is, the management system 50 is remotely connected to each air conditioning controller 40 via the Ethernet (registered trademark). Needless to say, the connection between the management system 50 and each air conditioning controller 40 is not limited to the LAN, and may be connected wirelessly.

In the system C, each of the plurality of air conditioning controllers 40 transmits the correction operation content transmitted from the indoor unit controller 6 described in the first embodiment to the management system 50. The management system 50 manages permission or denial of the correction operation in all the connected systems. That is, in the first embodiment and the second embodiment, whether the correction operation is permitted or denied is determined within the range controlled by the air conditioning controller 40, but in the third embodiment, the management system 50 is connected. Within the specified range, it is determined whether to permit or reject the correction operation.

In this way, even when a plurality of air conditioner systems are controlled by the plurality of air conditioning controllers 40, operation control with less waste is possible in the entire system managed by the management system 50. Energy-saving operation can be realized at the same time without impairing the comfort of each room 30. In addition, the management system 50 can register or change the heat load and the corrected operation content held in the storage unit 4 of each indoor unit controller 6 via each air conditioning controller 40.

1 functional unit, 2 detection unit, 3 computation processing unit, 4 storage unit, 5 communication unit, 6 indoor unit controller, 20 external thermometer, 20a external thermometer, 20b external thermometer, 20c external thermometer, 30 rooms, 30a Room, 30b room, 30c room, 30d room, 31 indoor unit, 31A indoor unit, 31B indoor unit, 31C indoor unit, 31D indoor unit, 31a indoor unit, 31b indoor unit, 31c indoor unit, 31d indoor unit, 31e indoor unit , 31f indoor unit, 32 outdoor unit, 32A outdoor unit, 32B outdoor unit, 32C outdoor unit, 32D outdoor unit, 40 air conditioning controller, 40a air conditioning controller, 40b air conditioning controller, 40c air conditioning controller, 40d air conditioning controller, 50 management system, A Air conditioner control system Control system The control system C air conditioner of B air conditioner.

Claims

A control system for one or more air conditioners,
When the temperature difference between the temperature of the air-conditioning target space that is air-conditioned by the indoor unit that constitutes the air conditioner and a preset temperature that is set in advance is greater than a preset threshold value, the heat of the air-conditioning target space Calculate the load,
Determine the correction operation content for correcting the operation state of the indoor unit based on the thermal load,
Considering the overall operation of the air conditioner, permit or deny the determined correction operation content,
When permitted, the correction operation of the air conditioner is executed based on the determined content of the correction operation. An air conditioner control system, comprising:
The heat load of the air conditioning target space is
The air according to claim 1, wherein the air conditioner is calculated based on a time required to stop the indoor unit constituting the air conditioner and to reach the set temperature after the indoor unit is stopped. Harmonic machine control system.
The calculated heat load of the air conditioning target space is
The air conditioner control system according to claim 2, wherein the control system is defined as a predetermined numerical value.
The details of the corrected operation are:
The air conditioner control system according to claim 3, wherein the air conditioner control system is stored in association with a thermal load of the air-conditioning target space defined as a numerical value.
In the corrected operation content,
5. The air conditioner control system according to claim 4, wherein priority is given.
When denying the determined corrected operation details,
The control system for an air conditioner according to claim 5, wherein the priority of the corrected operation content is lowered step by step to determine the corrected operation content.
The temperature of the air-conditioning target space is
The detection according to any one of claims 1 to 6, wherein the temperature is detected by a temperature obtained by a suction thermometer that measures a suction temperature of the indoor unit, a remote control room temperature meter held by a remote controller, or an external room temperature meter. The air conditioner control system described.
Controlling the plurality of air conditioners,
It has a management system that bundles controllers that control each air conditioner of each system,
The management system is
The air conditioning according to any one of claims 1 to 7, wherein the correction operation content sent from the controller is permitted or denied in consideration of the entire operation of the air conditioners of all systems. Machine control system.
A control method for a single air conditioner,
Detecting the temperature of the air-conditioning target space that is air-conditioned by the indoor units constituting the air conditioner,
A temperature difference between the detected temperature of the air-conditioning target space and a preset temperature is compared with a preset threshold;
When the temperature difference is larger than the threshold value, the mode shifts to a mode for calculating the heat load of the air-conditioning target space,
In the mode, determining a correction operation content for correcting the operation state of the indoor unit based on the thermal load,
Considering the overall operation of the air conditioner, permit or deny the determined correction operation content,
When permitted, execute the correction operation of the air conditioner based on the determined correction operation content,
When rejected, the priority order of the corrected operation content is lowered step by step, and the corrected operation content is determined again.
A control method for a plurality of air conditioners,
Detecting the temperature of the air-conditioning target space that is air-conditioned by the indoor units constituting the air conditioner,
A temperature difference between the detected temperature of the air-conditioning target space and a preset temperature is compared with a preset threshold;
When the temperature difference is larger than the threshold value, the mode shifts to a mode for calculating the heat load of the air-conditioning target space,
In the mode, determining a correction operation content for correcting the operation state of the indoor unit based on the thermal load,
The management system that bundles the controllers that control each air conditioner of each system considers the overall operation of the air conditioners of all systems, and permits or denies the determined correction operation content,
When permitted by the management system, execute the correction operation of the air conditioner based on the determined correction operation content,
When rejected, the priority order of the corrected operation content is lowered step by step, and the corrected operation content is determined again.