JP7042707B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system in which a plurality of indoor units are arranged in an air conditioning space.

In recent years, air-conditioning systems in which a plurality of indoor units are arranged in an air-conditioning space are often used. In addition, reduction of power consumption of air conditioning system is required. Therefore, various control methods for reducing power consumption in such an air conditioning system have been proposed.

For example, in an air-conditioning system in which a plurality of indoor units are arranged in an air-conditioned space, a control method is proposed to reduce the power consumption of the entire indoor unit by stopping the indoor unit having a low load factor and increasing the air volume of the adjacent indoor unit. (See Patent Document 1).

Further, when one continuous air-conditioned space is air-conditioned by a plurality of air-conditioned equipment, the airflow or the like blown out from the air-conditioning equipment may affect the air-conditioned environment of the adjacent air-conditioned space. For this reason, a thermal environment simulation is performed for the air-conditioned space to obtain the optimum temperature distribution and the contribution ratio of each air-conditioning equipment to each position of the air-conditioning space, and weighting is performed by the contribution ratio of each air-conditioning equipment. A control method for saving energy in air conditioning by controlling the temperature has been proposed (see Patent Document 2).

Japanese Unexamined Patent Publication No. 2013-134019 Japanese Unexamined Patent Publication No. 2000-171071

However, although the conventional air-conditioning system described in Patent Document 1 can reduce power consumption, there is a problem that the temperature distribution of the air-conditioning space is varied and the air-conditioning environment is deteriorated. In the conventional air conditioning system described in Patent Document 2, accurate simulation is the control point, but it is difficult to accurately simulate a complicated space, and the actual temperature distribution varies depending on the surrounding environment of the air conditioning space. Therefore, there was a problem that it was difficult to put it into practical use.

Therefore, an object of the present invention is to provide an air conditioning system capable of reducing power consumption according to an actual air conditioning space.

The air-conditioning system of the present invention is an air-conditioning system that air-conditions a continuous air-conditioning space including one area and at least one adjacent area adjacent to the one area, and is arranged in the one area. An indoor unit that air-conditions so that the indoor temperature of the area is set to a set control temperature, and an air outlet is arranged in the adjacent area so as to face the air outlet of the indoor unit. It is provided with an adjacent indoor unit that air-conditions so that the indoor temperature of the adjacent area becomes a set control temperature, and a controller that sets the control temperature of the one indoor unit and the control temperature of the adjacent indoor unit. The controller includes an adjacent indoor unit influence degree calculation unit that calculates the influence degree of the adjacent indoor unit that represents the influence of the control temperature of the adjacent indoor unit on the indoor temperature of the one area for each indoor unit, and the adjacent indoor unit influence. Based on the degree of influence of the adjacent indoor unit calculated by the degree calculation unit, each control temperature of each indoor unit is set so that the difference between each indoor temperature in each area and each set temperature set by the user for each indoor unit becomes small. It has an air conditioner setting unit to be set, and the adjacent indoor unit influence degree calculation unit has the above-mentioned one in the difference between the control temperature of the one indoor unit and the basic statistics representing the control temperature of the adjacent indoor unit. The indoor temperature of the one area with respect to the control temperature of the indoor unit is defined as the degree of influence of the adjacent indoor unit in the one area .

In this way, the degree of influence of the adjacent indoor unit, which indicates the degree of influence of the control temperature of the adjacent indoor unit on the indoor temperature of one area, is calculated for each indoor unit, and based on the degree of influence of the adjacent indoor unit, each room in each area. Since each control temperature of each indoor unit is set so that the difference between the temperature and each set temperature set by the user for each indoor unit becomes small, excessive air conditioning is suppressed according to the actual air conditioning space and power consumption is reduced. can do.

As a result, the degree of influence of the adjacent indoor unit can be expressed by a simple numerical value.

In the air-conditioning system of the present invention, the adjacent indoor unit influence degree calculation unit is the difference between the one control temperature and the basic statistic representing the control temperature of the adjacent indoor unit, and the one area in one control temperature. When the degree of influence of the adjacent indoor unit is calculated, the difference between the other control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and other controls based on the calculated degree of influence of the adjacent indoor unit. It may be possible to correct the degree of influence of the adjacent indoor unit in the one area on the temperature.

As a result, the degree of influence of the adjacent indoor unit can be adjusted according to the actual air-conditioning space even with a small number of calculations.

In the air-conditioning system of the present invention, the adjacent indoor unit influence degree calculation unit has the difference between the control temperature of the one indoor unit and the basic statistic representing the control temperature of the adjacent indoor unit, and the one indoor unit. An adjacent indoor unit influence degree table describing the control temperature of the adjacent indoor unit and the degree of influence on the adjacent indoor unit may be generated for each indoor unit and stored in the adjacent indoor unit influence degree storage unit. Further, in the air conditioning system of the present invention, the adjacent indoor unit influence degree calculation unit updates the adjacent indoor unit influence degree table at a predetermined timing, and the updated adjacent indoor unit influence degree table is used as the adjacent indoor unit influence degree. It may be stored in the storage unit. Further, in the air conditioning system of the present invention, the controller uses the control temperature of the one indoor unit, the control temperature of the adjacent indoor unit, and the influence table of the adjacent indoor unit stored in the influence storage unit of the adjacent indoor unit. It has an indoor temperature estimation unit that calculates the estimated indoor temperature of each area based on the above, and the air conditioner setting unit has each set temperature set by the user for each indoor unit and each estimated indoor temperature. Each control temperature of each indoor unit may be set so that the difference becomes small.

In this way, based on the adjacent indoor unit influence degree table, each control temperature of each indoor unit is set so that the difference between each indoor temperature in each area and each set temperature set by the user for each indoor unit becomes small. Therefore, it is possible to easily suppress excessive air conditioning according to the actual air conditioning space and reduce power consumption. Further, since the influence table of the adjacent indoor unit is updated at a predetermined timing, it is possible to suppress excessive air conditioning according to the latest air conditioning space and reduce power consumption.

In the air conditioning system of the present invention, the one indoor unit and at least one outdoor unit connected to the adjacent indoor unit are included, and the outdoor unit constitutes an air conditioning facility together with the one indoor unit and the adjacent indoor unit. The controller has a power consumption calculation unit that calculates the power consumption of the air conditioner, and the air conditioner setting unit is the difference between each set temperature set by the user for each indoor unit and each estimated indoor temperature. The control temperature of each indoor unit may be set so that the power consumption calculated by the power consumption calculation unit is minimized within a predetermined range.

As a result, power consumption can be reduced more effectively while keeping the air-conditioned environment within an allowable range.

In the air conditioning system of the present invention, the basic statistic representing the control temperature of the adjacent indoor unit may be the average value, the median value, the maximum value, the minimum value, or the mode value of the control temperature of the adjacent indoor unit. good.

The air-conditioning system of the present invention is an air-conditioning system that air-conditions a continuous air-conditioning space including one area and at least one adjacent area adjacent to the one area, and is arranged in the one area. An indoor unit that air-conditions so that the indoor temperature of the area is set to a set control temperature, and an air outlet is arranged in the adjacent area so as to face the air outlet of the indoor unit. An adjacent indoor unit that air-conditions so that the indoor temperature of the adjacent area becomes a set control temperature and a controller that sets the control temperature of each indoor unit are provided, and the controller controls the one indoor unit. When the temperature and the control temperature of the adjacent indoor unit are the same, the control temperature of the one indoor unit during the cooling operation is set higher than the set temperature set by the user for the one indoor unit, and during the heating operation. It is characterized in that the control temperature of the one indoor unit is set lower than the set temperature set by the user for the one indoor unit.

As a result, it is possible to suppress excessive air conditioning due to the influence of the adjacent indoor unit, so that power consumption can be effectively reduced.

The present invention can provide an air conditioning system capable of reducing power consumption according to an actual air conditioning space.

It is a system diagram which shows the structure of the air-conditioning system of embodiment of this invention. It is a flowchart which shows the basic operation of the air-conditioning system of this invention. It is a flowchart which shows the operation of the indoor unit at the time of the adjacent indoor unit influence degree table generation processing shown in FIG. It is a flowchart which shows the operation of the contour roller at the time of the adjacent indoor unit influence degree table generation processing shown in FIG. It is a flowchart which shows the operation of the controller at the time of the room temperature estimation process and the control temperature setting process shown in FIG. It is a flowchart which shows the operation of the indoor unit in step S106 of FIG. It is a figure which shows the example of the influence degree table of an adjacent indoor unit. It is a figure which shows the temporary adjacent indoor unit influence degree table of the indoor unit A. It is explanatory drawing which shows the update of the influence degree table of an adjacent indoor unit. It is explanatory drawing explaining the operation which calculates the estimated indoor temperature using the adjacent indoor unit influence degree table. It is a system diagram which shows the structure of the air conditioning system of another embodiment. It is a flowchart which shows the operation of the air-conditioning system of another embodiment. It is a system diagram which shows the structure of the air conditioning system of another embodiment. It is a flowchart which shows the operation of the air-conditioning system of another embodiment.

Hereinafter, the air conditioning system 100 of the present embodiment will be described with reference to the drawings. As shown in FIG. 1, the air conditioning system 100 air-conditions a first area 11 and a continuous air-conditioning space 10 including a second area 12 and a third area 13 which are two adjacent areas adjacent to the first area 11. It is something to do. The first to third areas 11 to 13 are office areas in which office desks 14 to 16 are arranged, respectively. The air-conditioned space 10 may be, for example, one floor of an office. In the following description, the first area 11, the second area 12, and the third area 13 are referred to as Area A, Area B, and Area C, respectively. Also in FIG. 1, the alternate long and short dash line indicates the signal flow.

The first indoor unit 20 is attached to the ceiling in the center of the area A. Further, on the ceilings of areas B and C adjacent to the area A, the second indoor unit 30 and the third indoor unit 40 are provided so that the air outlets 33 and 43 face the air outlet 23 of the first indoor unit 20. Is installed. The first to third indoor units 20, 30, and 40 are connected to an outdoor unit 60 that supplies cold water or hot water. The first to third indoor units 20, 30, 40 and the outdoor unit 60 constitute one air conditioning facility 65. In the following description, the first indoor unit 20, the second indoor unit 30, and the third indoor unit 40 are referred to as an indoor unit A, an indoor unit B, and an indoor unit C, respectively.

A control temperature sensor 21 is attached to the indoor unit A, and air conditioning is performed so that the indoor temperature of the area A detected by the control temperature sensor 21 becomes the set control temperature. Similarly, the indoor units B and C are equipped with the control temperature sensors 31 and 41 so that the indoor temperature of the areas B and C detected by the control temperature sensors 31 and 41 becomes the set control temperature. Air-conditioning. Remote controllers 22, 32, and 42 are wirelessly connected to the indoor units A to C, respectively. The remote controllers 22, 32, and 42 can be operated by the user to set the control temperature of the indoor units A to C.

Further, in areas A to C, temperature sensors 51, 52, and 53 for detecting each room temperature in areas A to C are arranged. The temperature sensors 51 to 53 may be arranged on, for example, office desks 14 to 16 so as to detect the room temperature as close as possible to the room temperature felt by the users in the areas A to C. It may be arranged at a height of about 1.5 m from the floor substantially in the center of each area A to C.

The indoor units A to C, the outdoor unit 60, the remote controllers 22, 32, 42, and the temperature sensors 51 to 53 are connected to the controller 70. The controller 70 sets each control temperature of the indoor units A to C. Further, the set temperature set by the user by operating the remote controllers 22, 32, 42 and the indoor temperature of the areas A to C detected by the temperature sensors 51 to 53 are input to the controller 70.

The controller 70 includes an adjacent indoor unit influence degree calculation unit 71, an adjacent indoor unit influence degree storage unit 72, an indoor unit arrangement storage unit 73, an indoor temperature estimation unit 74, a set temperature acquisition unit 75, an indoor temperature acquisition unit 76, and an air conditioning setting unit. Each of 77 functional blocks is included. The controller 70 is a computer having a CPU and a storage unit inside, and each of the above functional blocks is configured by the CPU and the storage unit operating in cooperation with each other. The indoor unit arrangement storage unit 73 stores the arrangement information of the indoor units A to C. Further, the adjacent indoor unit influence degree storage unit 72 stores the adjacent indoor unit influence degree table generated by the adjacent indoor unit influence degree calculation unit 71.

Next, the operation of the air conditioning system 100 of the embodiment will be described with reference to FIGS. 2 to 10. First, the basic operation of the air conditioning system 100 will be described with reference to FIG.

As shown in step S101 of FIG. 2, when the user operates the remote controllers 22, 32, and 42 corresponding to the indoor units A to C to set the set temperature, the set temperature is sent to the set temperature acquisition unit 75 of the controller 70. Upon input, the air conditioner setting unit 77 of the controller 70 sets the set temperature to the control temperature of the indoor units A to C as shown in step S102 of FIG.

As shown in step S103 of FIG. 2, the indoor units A to C perform air conditioning control so that the indoor temperature detected by the control temperature sensors 21, 31, and 41 becomes each control temperature (= each set temperature). In this case, due to the influence of the adjacent indoor units, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C deviates from the set temperature, resulting in a state of over-air conditioning. In step S104 of FIG. 2, the adjacent indoor unit influence degree calculation unit 71 of the controller 70 is the control temperature of the indoor units A to C (the same as the set temperature in step S104) and the indoor temperature acquisition unit 76 is from the temperature sensors 51 to 53. Based on the acquired indoor temperature, an adjacent indoor unit influence degree table as shown in FIGS. 7 (a) to 7 (c) is generated.

As shown in FIG. 9, the indoor temperature estimation unit 74 of the controller 70 controls the indoor units A to C using the adjacent indoor unit influence degree table generated in step S104 of FIG. 2 in step S105 of FIG. Each room temperature of the areas A to C detected by the temperature sensors 51 to 53 when operated with the candidate set is estimated. Then, in step S106 of FIG. 2, the air conditioning setting unit 77 of the controller 70 sets a set of control temperature candidates whose estimated indoor temperature is close to the set temperature set by the user at each control temperature of the indoor units A to C. ..

The indoor units A to C perform air conditioning control so that the indoor temperature detected by the control temperature sensors 21, 31, and 41 becomes the control temperature set by the controller 70. As a result, the indoor temperatures of the areas A to C detected by the temperature sensors 51 to 53 become close to the set temperature set by the user, and over-air conditioning is suppressed.

As described above, the air conditioning system 100 of the present embodiment can reduce power consumption by suppressing excessive air conditioning according to the actual air conditioning space 10.

Hereinafter, detailed operations will be described with reference to FIGS. 3 to 10. In the following description, the case where the average value is used as the basic statistic representing the control temperature of the adjacent indoor unit will be described.

As shown in step S101 of FIG. 2 and step S201 of FIG. 3, when the user operates the remote controllers 22, 32, and 42 corresponding to the indoor units A to C to set the set temperature, the set temperature is set to the controller 70. The input is input, and as shown in step S102 of FIG. 2, the air conditioning setting unit 77 of the controller 70 outputs a signal for setting the set temperature to the control temperature of the indoor units A to C. As shown in step S202 of FIG. 3, in response to this signal, the control temperature of the indoor units A to C is set to the set temperature.

The indoor units A to C start the air conditioning operation, and the air conditioning is controlled so that the indoor temperature detected by the control temperature sensors 21, 31, and 41 of the indoor units A to C becomes the control temperature (in this case, the set temperature). I do. Then, as shown in step S203 of FIG. 3, when the room temperature detected by the control temperature sensors 21, 31, and 41 does not reach the control temperature (= set temperature), the process proceeds to step S205 of FIG. If the air conditioning operation is continued and the room temperature detected by the control temperature sensors 21, 31, and 41 reaches the control temperature (= set temperature), the process proceeds to step S204 of FIG. 2, the air conditioning operation is stopped, and the air is blown. Continue the operation to drive.

As described above, in this state, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C deviates from the set temperature due to the influence of the adjacent indoor units. Therefore, the adjacent indoor unit influence degree calculation unit 71 of the controller 70 generates the adjacent indoor unit influence degree table as shown in FIG. 7 by the operation as shown in FIG. 4 (adjacent indoor unit shown in step S104 of FIG. 2). Impact table generation process). Here, the degree of influence of the adjacent indoor unit represents the degree of influence that the control temperature of the adjacent indoor unit has on the indoor temperature of one area, and "represents the control temperature of one indoor unit and the control temperature of the adjacent indoor unit." It is defined as "the indoor temperature of one area with respect to the control temperature of one indoor unit in the difference from the basic statistics". When the average value is used as the basic statistic representing the control temperature of the adjacent indoor unit, the above definition is the difference between the control temperature of one indoor unit and the average value of the control temperature of the adjacent indoor unit. It is the indoor temperature of one area with respect to the control temperature of the machine, and it is a different value for each indoor unit. For example, the degree of influence of the adjacent indoor unit A of the indoor unit A indicates the degree of influence of the control temperature of the adjacent indoor units B and C on the indoor temperature of the area A, and the control temperature of the indoor unit A and the indoor unit B, It is the indoor temperature of the area A with respect to the controlled temperature of the indoor unit A in the difference from the average value of the controlled temperature of C. In the case of the area B (C), since the adjacent indoor unit is only the indoor unit A, "the degree of influence of the control temperature of the adjacent indoor unit A on the indoor temperature of the area B (C) is shown, and the indoor unit B is used. It is the indoor temperature of the area B (C) with respect to the controlled temperature of the indoor unit B (C) in the difference between the controlled temperature of the indoor unit A and the controlled temperature of the indoor unit A. In the following description, the case of generating the influence degree table of the adjacent indoor unit of the indoor unit A shown in FIG. 7A will be described as an example. The adjacent indoor unit influence degree table of the indoor unit A is generated by inputting necessary numbers in each column of the temporary adjacent indoor unit influence degree table of the indoor unit A shown in FIG. The temporary adjacent indoor unit influence degree table is stored in the indoor unit arrangement storage unit 73. Each input field is generated based on the arrangement information of the indoor units A to C, and is stored in the adjacent indoor unit influence degree storage unit 72.

As shown in step S301 of FIG. 4, the set temperature acquisition unit 75 of the controller 70 acquires the set temperature of the indoor units A to C from the remote controllers 22, 32, and 42 corresponding to the indoor units A to C by the user. Now, when the influence degree table of the adjacent indoor unit A of the indoor unit A shown in FIG. 7A is generated, the acquired set temperature of the indoor unit A is set to the "temporary adjacent indoor unit influence degree table of the indoor unit A shown in FIG. 8". Enter in the "Control temperature" field. For example, when the set temperature is 26.0 ° C., enter the number 26 in the control temperature field. Next, the difference between the average value of the set temperatures of the indoor units B and C adjacent to the indoor unit A and the set temperature of the indoor unit A is calculated. For example, when the set temperatures of the indoor units A to C are all 26.0 ° C., the difference between the average value of the set temperatures of the indoor units B and C adjacent to the indoor unit A and the set temperature of the indoor unit A is 0 ° C. .. In this case, 0 is input in the field of "difference between the control temperature of the indoor unit A and the average value of the control temperatures of the indoor units B and C" in FIG.

Next, the controller 70 proceeds to step S302 in FIG. 4 to determine whether the room temperature is in a steady state. This determination is, for example, YES when the indoor temperature acquired from the temperature sensors 51 to 53 by the indoor temperature acquisition unit 76 has not changed by 0.1 ° C. or more in 5 minutes, and the temperature has changed further. In some cases, it may be determined as NO.

If the controller 70 determines YES in step S302 of FIG. 4, the controller 70 proceeds to step S303 of FIG. 4 and acquires the room temperature of each of the areas A to C from the temperature sensors 51 to 53 by the room temperature acquisition unit 76. When the influence table of the adjacent indoor unit A of the indoor unit A shown in FIG. 7A is generated, the indoor temperature 25. Acquired from the temperature sensor 51 by the indoor temperature acquisition unit 76 as shown in step S304 of FIG. 5 ° C is shown in FIG. 8 The control temperature of the temporary adjacent indoor unit influence table of the indoor unit A is 26.0 ° C, and the difference between the control temperature of the indoor unit A and the average value of the control temperatures of the indoor units B and C is 0. Enter in the field corresponding to ℃.

Then, the controller 70 proceeds to step S305 of FIG. 4 to determine whether or not there is an existing value in the adjacent indoor unit influence table of the indoor unit A. When the adjacent indoor unit influence table is first created and there is no existing value, the controller 70 determines NO in step S305 of FIG. 4, proceeds to step S307 of FIG. 4, and proceeds to the indoor unit shown in FIG. Update the contents of the adjacent indoor unit influence table with the contents of the temporary adjacent indoor unit influence table of A.

On the other hand, if the adjacent indoor unit influence degree calculation unit 71 of the controller 70 determines YES in step S305 of FIG. 4, the process proceeds to step S306 of FIG. 4, and as shown in FIG. 9, the existing value and the temperature this time. The adjacent indoor unit influence degree table of the indoor unit A is updated with the average value with the indoor temperature detected by the sensor 51 as the influence degree of the adjacent indoor unit. Then, the controller 70 stores the updated indoor unit influence degree table of the indoor unit A in the adjacent indoor unit influence degree storage unit 72.

The controller 70 continues the operation shown in FIGS. 3 and 4 each time the user changes the set temperature of the indoor units A to C variously during a predetermined period, and the influence of the adjacent indoor unit of the indoor unit A shown in FIG. 8 Enter numerical values in each field of the degree table. Further, the controller 70 may access the remote controllers 22, 32, and 42 to change the set temperatures of the indoor units A to C in various ways. Then, when a predetermined period elapses, an influence degree table of the adjacent indoor unit A of the indoor unit A as shown in FIG. 7A is generated. Further, the controller 70 may update the adjacent indoor unit influence degree table at a predetermined timing such as 30 minutes.

The adjacent indoor unit influence degree tables of the indoor units B and C shown in FIGS. 7 (b) and 7 (c) are also generated by the same method as described above. After the generation of the influence table of the adjacent indoor units of the indoor units A to C is completed, the controller 70 performs the indoor temperature estimation process shown in step S105 of FIG. 2 and the control temperature setting process shown in step S106.

As shown in step S401 of FIG. 5, the indoor temperature estimation unit 74 of the controller 70 estimates the indoor temperature of each of the areas A to C with reference to the adjacent indoor unit influence degree tables of the indoor units A to C.

As described above, the control temperature of the indoor units A to C is set to the set temperature, and in the indoor units A to C, the indoor temperature detected by the control temperature sensors 21, 31, and 41 is the control temperature (=). Air conditioning is controlled so that the set temperature) is reached. Therefore, the temperature sensor is read by reading the set temperature of the indoor units A to C as the control temperature and referring to the adjacent indoor unit influence degree tables of the indoor units A to C shown in FIGS. 7 (a) to 7 (c). The room temperature of areas A to C detected by 51 to 53 can be estimated.

For example, when the set temperatures of the indoor units A to C are all 26.0 ° C, the average value (=) of the control temperature of the indoor unit A (= set temperature = 26.0 ° C) and the control temperatures of the indoor units B and C (=). The difference from the set temperature = 26.0 ° C.) is 0 ° C. Therefore, the estimated indoor temperature estimated to be detected by the temperature sensor 51 in the area A in this case is calculated to be 25.5 ° C. from the adjacent indoor unit influence degree table of the indoor unit A in FIG. 7 (a). Similarly, the estimated indoor temperature estimated to be detected by the temperature sensor 52 in the area B is the control temperature = 26.0 ° C. and the difference = 0 ° C. in the adjacent indoor unit influence degree table of the indoor unit B in FIG. 7 (b). It is calculated as 25.7 ° C. in the case of. Similarly, the estimated indoor temperature estimated to be detected by the temperature sensor 53 in Area C is the control temperature = 26.0 ° C. and the difference = 0 ° C. in the adjacent indoor unit influence degree table of the indoor unit C in FIG. 7 (c). It is calculated as 25.7 ° C. in the case of.

After the calculation of the estimated indoor temperature by the indoor temperature estimation unit 74 is completed, the controller 70 proceeds to step S402 of FIG. 5, and the difference between the set temperature of the areas A to C and the estimated indoor temperature is within the allowable range in the air conditioning setting unit 77. Determine if it is in. The permissible range can be set in various ways. For example, in the case of cooling, the permissible range is when each estimated room temperature is in the range of 0 ° C to 0.5 ° C higher than the set temperature, and each estimated room temperature is higher than the set value. If it is low, it may be out of the allowable range by over-air conditioning. Further, the case where the difference between each estimated room temperature and the set temperature is smaller than the predetermined threshold value may be regarded as the allowable range, and the case where the difference is larger than the predetermined threshold value may be regarded as out of the allowable range.

In the previous example, the set temperatures are all 26.0 ° C, but the estimated room temperatures are 25.5 ° C and 25.7 ° C, which are lower than the set temperature, so it is estimated that the air conditioner is excessively cooled. Therefore, the air conditioning setting unit 77 of the controller 70 determines NO in step S402 of FIG. 5, and proceeds to step S404 of FIG.

The air conditioning setting unit 77 of the controller 70 creates a combination of control temperature candidates of the indoor units A to C in step S404 of FIG. As described above, if the control temperatures of the indoor units A to C are all set to the set temperature of 26.0 ° C. and the operation is performed, the indoor temperature of the areas A to C is estimated to be lower than 26.0 ° C. .. Therefore, in order to make the room temperature detected by the temperature sensors 51 to 53 slightly higher than 26.0 ° C., the control temperature may be slightly higher than 26.0 ° C.

Therefore, the air conditioning setting unit 77 of the controller 70 creates a set of control temperature candidates as shown in FIG. 10B and outputs the set to the room temperature estimation unit 74. Group 1 has all control temperatures set to 26.0 ° C, similar to the currently set temperature. This will serve as a reference later when choosing a control temperature. In Group 2, the control temperature of the indoor unit A was raised by 1 ° C to 27.0 ° C, and the control temperature of the indoor units B and C remained at 26.0 ° C. In Group 3, the control temperature of the indoor unit A is kept at 26.0 ° C, and the control temperature of the adjacent indoor units B and C is set to 27.0 ° C, respectively. In Group 4, the control temperature of the indoor unit B is kept at 26.0 ° C., and the control temperature of the indoor units A and C is set to 27.0 ° C.

Next, the controller 70 proceeds to step S405 of FIG. 5, and when the indoor temperature estimation unit 74 sets the control temperature of the indoor units A to C into a set of control temperature candidates of group 1, the temperature sensors 51 to 53 detect it. Calculate the estimated room temperature.

In Group 1, since the control temperatures of the indoor units A to C are all set to 26.0 ° C., the average value of the control temperatures of the indoor units B and C is 26.0 ° C., which is the same as the control temperature of the indoor unit A. The difference from the average value is 0 ° C. Then, from the description in the column of the control temperature 26.0 ° C. and the difference 0 ° C. in the adjacent indoor unit influence degree table of the indoor unit A in FIG. 10C, the estimated indoor temperature of the area A is 25.5 ° C. Regarding areas B and C, the description in the column of the control temperature 26.0 ° C. and the difference 0 ° C. in the adjacent indoor unit influence table of the indoor unit B shown in FIG. 10 (e), and the indoor unit C shown in FIG. 10 (f). The estimated indoor temperature is 25.7 ° C, respectively, from the description in the columns of the control temperature 26.0 ° C. and the difference 0 ° C. in the adjacent indoor unit influence degree table.

After the calculation of the estimated indoor temperature when the indoor temperature estimation unit 74 of the controller 70 is set as the control temperature candidate set of the group 1 is completed, the process proceeds to step S406 of FIG. It is determined whether or not the difference between the estimated room temperature of C and the set temperature is within the allowable range. As for step S402 in FIG. 5, the allowable range is, for example, the case where each estimated room temperature is in the range of 0 ° C to 0.5 ° C higher than the set temperature in the case of cooling, and each estimated room is in the allowable range. If the temperature is lower than the set value and the over-air conditioning is out of the permissible range, the group 1 is out of the permissible range due to over-air conditioning. Therefore, the controller 70 determines NO in step S406 of FIG. Step S407 of.

The room temperature estimation unit 74 of the controller 70 calculates the estimated room temperature of the areas A to C when the control temperature is set as the next set of control temperature candidates of the group 2 in step S407 of FIG. In the case of Group 2, since the average value of the control temperatures of the indoor units B and C is 26.0 ° C., the difference between the control temperature of the indoor unit A and the average value is −1.0 ° C. Then, from the description in the column of the control temperature 27.0 ° C. and the difference −1.0 in the adjacent indoor unit influence degree table of the indoor unit A in FIG. 10 (c), the estimated indoor temperature of the area A is 26.6 ° C. Become. Since the control temperature of the indoor unit B in the area B is 26.0 ° C. and the control temperature of the indoor unit A is 27.0 ° C., the difference from the control temperature of the indoor unit A is + 1.0 ° C. Then, from the description in the column of the control temperature 26.0 ° C. and the difference +1.0 in the adjacent indoor unit influence table of the indoor unit B shown in FIG. 10 (e), the estimated indoor temperature of the area B is 25.9 ° C. Become. Similarly, the estimated room temperature in Area C from the adjacent indoor unit influence degree table of the indoor unit C shown in FIG. 10 (f) is 25.8 ° C. When the indoor temperature estimation unit 74 finishes calculating the estimated indoor temperature when the control temperature is a set of control temperature candidates of group 2, the result is output to the air conditioning setting unit 77.

When the control temperature is a set of control temperature candidates of group 2, areas B and C are over-air-conditioned. Therefore, the air-conditioning setting unit 77 of the controller 70 determines NO in step S406 of FIG. 5, and steps S407 of FIG. Proceed to.

The room temperature estimation unit 74 of the controller 70 calculates the estimated room temperature of the areas A to C when the control temperature is set as the next set of control temperature candidates of the group 3 in step S407 of FIG. In the case of Group 3, since the average value of the control temperatures of the indoor units B and C is 27.0 ° C., the difference between the control temperature of the indoor unit A and the average value is + 1.0 ° C. Then, from the description in the column of the control temperature 26.0 ° C. and the difference +1.0 in the adjacent indoor unit influence degree table of the indoor unit A in FIG. 10 (c), the estimated indoor temperature of the area A is 26.0 ° C. .. Since the control temperature of the indoor unit B in the area B is 27.0 ° C. and the control temperature of the indoor unit A is 26.0 ° C., the difference from the control temperature of the indoor unit A is −1.0 ° C. Then, from the description in the column of the control temperature 27.0 ° C. and the difference −1.0 of the adjacent indoor unit influence degree table of the indoor unit B shown in FIG. 10 (e), the estimated indoor temperature of the area B is 26.3 ° C. It becomes. Similarly, the estimated room temperature in Area C from the adjacent indoor unit influence degree table of the indoor unit C shown in FIG. 10 (f) is 26.2 ° C. When the indoor temperature estimation unit 74 finishes calculating the estimated indoor temperature when the control temperature is a set of control temperature candidates of group 3, the result is output to the air conditioning setting unit 77.

In the case of Group 3, the estimated room temperatures in areas A to C are all in the range of 0 ° C. to 0.5 ° C. higher than the set temperature, which is within the permissible range. The air conditioning setting unit 77 of the controller 70 determines YES in step S406 of FIG. 5, proceeds to step S408 of FIG. 6, and sets a set of control temperature candidates of group 3 to the control temperature of the indoor units A to C.

After the setting of the control temperature is completed by the controller 70, the indoor units A to C perform air conditioning as shown in FIG. 6 (air conditioning control in step S107 in FIG. 2).

As shown in step S501 of FIG. 6, the control temperature of the indoor units A to C by the air conditioning setting unit 77 of the controller 70 is 26.0 ° C., 27.0 ° C., 27 like a set of control temperature candidates of group 3. It is set to 0.0 ° C. The indoor unit A performs air conditioning control so that the indoor temperature detected by the control temperature sensor 21 becomes the set control temperature (= 26.0 ° C.). Further, the indoor units B and C perform air conditioning control so that the indoor temperature detected by the control temperature sensors 31 and 41 becomes the set control temperature (= 27.0 ° C.). That is, in the indoor unit A, in steps S502 to S504 of FIG. 6, the air conditioning operation is performed until the control temperature (= 26.0 ° C.) is reached, and the air conditioning operation is stopped when the control temperature (= 26.0 ° C.) is reached. And blow air. Further, in the indoor units B and C, in steps S502 to S504 of FIG. 6, the air conditioning operation is performed until the control temperature (= 27.0 ° C.) is reached, and the air conditioning operation is performed when the control temperature (= 27.0 ° C.) is reached. Stop and blow air.

As a result, the indoor temperatures detected by the temperature sensors 51 to 53 in areas A to C become 26.0 ° C, 26.3 ° C, and 26.2 ° C, which are slightly higher than the set temperature of 26.0 ° C. Over-air conditioning can be suppressed. Since over-air conditioning can be suppressed in this way, the power consumption of the air-conditioning equipment 65 can be reduced.

The controller 70 calculated that when the set temperature set by the user is set as the control temperature, the estimated indoor temperatures in areas A to C are all in the range of 0 ° C to 0.5 ° C higher than the set temperature. In that case, it is determined as YES in step S402 of FIG. 5, and the process proceeds to step S403 of FIG. The air conditioning setting unit 77 of the controller 70 resets the set temperature to the control temperature in step S403 of FIG. In this case as well, the room temperature detected by the temperature sensors 51 to 53 in areas A to C is in a temperature range slightly higher than the set temperature of 26.0 ° C., and over-air conditioning can be suppressed, and the power consumption of the air-conditioning equipment 65 can be suppressed. Can be reduced.

Further, in the process of generating the influence table of the adjacent indoor unit in step S104 of FIG. 2, the controller 70 has the difference between the average value of the control temperature of one control temperature and the control temperature of the adjacent indoor unit and the adjacency of one area in one control temperature. When calculating the degree of influence of the indoor unit, the difference between the other control temperature and the average value of the control temperature of the adjacent indoor unit and the other in one area at the other control temperature based on the calculated degree of influence of the adjacent indoor unit. The degree of influence of the adjacent indoor unit may be corrected.

For example, in the case of generating the influence degree table of the adjacent indoor unit A of the indoor unit A shown in FIG. 7A, the set temperature is 26.0 ° C., and the average value of the set temperatures of the indoor units B and C adjacent to the indoor unit A. When the difference between the set temperature of the indoor unit A and the set temperature of the indoor unit A is 0 ° C., the indoor temperature of 25.5 ° C. acquired from the temperature sensor 51 by the indoor temperature acquisition unit 76 is shown in FIG. Enter in the column where the control temperature is 26.0 ° C. and the difference between the control temperature of the indoor unit A and the average value of the control temperatures of the indoor units B and C is 0 ° C. At this time, if there is an existing value, the adjacent indoor unit influence degree table is updated with the existing value and the average value of the acquired indoor temperature as the adjacent indoor unit influence degree, but other existing values are also, for example, the existing value. The influence degree of the adjacent indoor unit is corrected by the ratio with the acquired value, and the influence degree table of the adjacent indoor unit is updated. As a result, it is possible to generate an accurate adjacent indoor unit influence degree table in a short time.

Further, in step S406 of FIG. 5, the case where the difference between each estimated room temperature and the set temperature is smaller than the predetermined threshold value may be set as the allowable range, and the case where the difference is larger than the predetermined threshold value may be set as out of the allowable range. In this case, the difference between the indoor temperature of the areas A to C and the set temperature becomes smaller, an environment closer to the air conditioning environment required by the user can be provided, and excessive air conditioning can be suppressed to reduce power consumption.

Further, in the air conditioning system 100 of the present embodiment, it has been described that the control temperature sensors 21, 31 and 41 are attached to the indoor units A to C, but the present invention is not limited to this and is separated from the indoor units A to C. It may be installed in the same place.

In the above explanation, the basic statistic representing the control temperature of the adjacent indoor unit is the average value, but the basic statistic is not limited to this as long as it represents the control temperature of the adjacent indoor unit. For example, it may be the median, maximum, minimum, or mode of the control temperature of the adjacent indoor unit.

Next, the air conditioning system 200 of another embodiment will be described with reference to FIGS. 11 and 12. The same parts as those of the air conditioning system 100 of the embodiment described above with reference to FIGS. 1 to 10 are designated by the same reference numerals, and the description thereof will be omitted.

The air conditioning system 200 shown in FIG. 11 includes a power consumption calculation unit 78 in which the controller 70 of the air conditioning system 100 described above calculates the power consumption of the air conditioning equipment 65. Further, FIG. 12 is a flowchart showing the operation of the air conditioning system 200, and the same steps as those in the flowchart of FIG. 4 are designated by the same reference numerals and the description thereof will be omitted.

If the air conditioning system 200 determines YES in step S406 of FIG. 12, it proceeds to step S410 of FIG. 12 and sets the set of control temperature candidates determined to be YES in step S406 of FIG. 12 as the control temperature. Calculate the power consumption of 65. Then, in step S411 of FIG. 12, it is determined whether or not the power consumption is the minimum among the set of control temperature candidates determined to be YES in step S406 of FIG. If YES is determined in step S411 of FIG. 12, the process proceeds to step S408 of FIG. 4 and YES in step S406 to set the set of control temperature candidates that minimizes power consumption as the control temperature.

The air conditioning system 200 of the present embodiment can more effectively reduce power consumption while maintaining the air conditioning environment within an allowable range.

The air conditioning system 300, which is another embodiment of the present invention, will be described with reference to FIGS. 13 and 14 below. The controller 70 of the air conditioning system 300 of the present embodiment includes only the set temperature acquisition unit 75, the room temperature acquisition unit 76, and the air conditioning setting unit 77.

As described above, when the set temperatures of the indoor units A to C are all the same, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C in the case of cooling is due to the influence of the adjacent indoor units. The excessive cooling operation will be lower than the set temperature, and in the case of heating, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C will be higher than the set temperature, resulting in the excessive cooling operation.

Therefore, in the air conditioning system 300 of the present embodiment, when the control temperature of one indoor unit and the control temperature of the adjacent indoor unit are the same, the user can change the control temperature of one indoor unit during the cooling operation to one indoor unit. It is set higher than the set temperature, and the control temperature of one indoor unit during heating operation is set lower than the set temperature set by the user for one indoor unit.

As shown in FIG. 14, the air conditioning setting unit 77 of the controller 70 determines in step S601 of FIG. 14 whether the set temperatures of the indoor units A to C are all the same. In the same case, if it is determined in step S602 of FIG. 14 that the cooling operation is performed, the process proceeds to step S603 of FIG. 14, and the control temperature of the indoor units A to C is set by the user to the indoor units A to C. Set higher than.

Further, when it is determined in step S604 of FIG. 14 that the heating operation is performed instead of the cooling operation in step S602 of FIG. 14, the process proceeds to step S605 of FIG. Set it lower than the set temperature set in ~ C.

Thereby, it is possible to suppress over-air conditioning and reduce the power consumption of the air-conditioning equipment 65 by a simple method.

10 Air-conditioned space, 11 to 13 areas, 20, 30, 40 Indoor unit, 21, 31, 41 Control temperature sensor, 22, 32, 42 remote controller, 23, 33, 43 Air outlet 51, 52, 53 Temperature sensor, 60 outdoor unit, 65 air conditioner, 70 controller, 71 adjacent indoor unit impact calculation unit, 72 adjacent indoor unit impact storage unit, 73 indoor unit layout storage unit, 74 indoor temperature estimation unit, 75 set temperature acquisition unit, 76 indoor unit Temperature acquisition unit, 77 air conditioning setting unit, 78 power consumption calculation unit, 100, 200, 300 air conditioning system.

Claims (8)

An air conditioning system that air-conditions a continuous air-conditioned space including one area and at least one adjacent area adjacent to the one area.
One indoor unit that is arranged in the one area and air-conditions so that the indoor temperature of the one area becomes a set control temperature.
An adjacent indoor unit in which the air outlet is arranged in the adjacent area so as to face the air outlet of the one indoor unit and air-conditioning is performed so that the indoor temperature of the adjacent area becomes a set control temperature.
A controller that sets the control temperature of the one indoor unit and the control temperature of the adjacent indoor unit,
Equipped with
The controller
An adjacent indoor unit impact calculation unit that calculates the impact of the adjacent indoor unit, which represents the degree of influence of the control temperature of the adjacent indoor unit on the indoor temperature of the one area, for each indoor unit.
Based on the adjacent indoor unit influence degree calculated by the adjacent indoor unit influence degree calculation unit, each indoor unit so that the difference between each indoor temperature in each area and each set temperature set by the user for each indoor unit becomes small. Has an air conditioning setting unit, which sets each control temperature of
The adjacent indoor unit influence degree calculation unit is
The indoor temperature of the one area with respect to the control temperature of the one indoor unit in the difference between the control temperature of the one indoor unit and the basic statistic representing the control temperature of the adjacent indoor unit is set to the one area. The degree of influence of the adjacent indoor unit,
An air conditioning system featuring. The air conditioning system according to claim 1 .
The adjacent indoor unit impact calculation unit
The adjacent room calculated when the difference between one control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and the degree of influence of the adjacent indoor unit in the one area at one control temperature were calculated. Based on the machine influence degree, the difference between the other control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and the influence degree of the other adjacent indoor unit in the one area at the other control temperature are corrected. To do,
An air conditioning system featuring. The air conditioning system according to claim 1 or 2 .
The adjacent indoor unit influence degree calculation unit is
The degree of influence of the adjacent indoor unit on the difference between the control temperature of the one indoor unit and the basic statistic representing the control temperature of the adjacent indoor unit and the control temperature of the one indoor unit is described. Creating a machine impact table for each indoor unit and storing it in the adjacent indoor unit impact storage unit,
An air conditioning system featuring. The air conditioning system according to claim 3 .
The adjacent indoor unit influence degree calculation unit is
The adjacent indoor unit impact table is updated at a predetermined timing, and the updated adjacent indoor unit impact table is stored in the adjacent indoor unit impact storage unit.
An air conditioning system featuring. The air conditioning system according to claim 3 or 4 .
The controller
Based on the control temperature of the one indoor unit, the control temperature of the adjacent indoor unit, and the influence degree table of the adjacent indoor unit stored in the influence degree storage unit of the adjacent indoor unit, the estimated indoor temperature of each area is determined. Each has an indoor temperature estimation unit that calculates
The air conditioning setting unit sets each control temperature of each indoor unit so that the difference between each set temperature set by the user for each indoor unit and each estimated indoor temperature becomes small.
An air conditioning system featuring. The air conditioning system according to claim 5 .
Including at least one outdoor unit connected to the one indoor unit and the adjacent indoor unit.
The outdoor unit constitutes an air conditioning facility together with the one indoor unit and the adjacent indoor unit.
The controller
It has a power consumption calculation unit that calculates the power consumption of the air conditioning equipment.
In the air conditioner setting unit, the difference between each set temperature set by the user for each indoor unit and each estimated indoor temperature is within a predetermined range, and the power consumption calculated by the power consumption calculation unit is minimized. To set each control temperature of each indoor unit,
An air conditioning system featuring. The air conditioning system according to any one of claims 1 to 6 .
The basic statistic representing the control temperature of the adjacent indoor unit is an average value, a median value, a maximum value, a minimum value, or a mode value of the control temperature of the adjacent indoor unit.
An air conditioning system featuring. An air conditioning system that air-conditions a continuous air-conditioned space including one area and at least one adjacent area adjacent to the one area.
One indoor unit that is arranged in the one area and air-conditions so that the indoor temperature of the one area becomes a set control temperature.
An adjacent indoor unit in which the air outlet is arranged in the adjacent area so as to face the air outlet of the one indoor unit and air-conditioning is performed so that the indoor temperature of the adjacent area becomes a set control temperature.
A controller that sets the control temperature of each indoor unit,
Equipped with
The controller
When the control temperature of the one indoor unit and the control temperature of the adjacent indoor unit are the same, the control temperature of the one indoor unit during the cooling operation is higher than the set temperature set by the user for the one indoor unit. To set and set the control temperature of the one indoor unit during the heating operation to be lower than the set temperature set by the user for the one indoor unit.
An air conditioning system featuring.

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