JP2020003125A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system of which the power consumption can be reduced according to an actual space to be air-conditioned.SOLUTION: An air conditioning system 100 is provided that performs air conditioning on a space 10 to be air-conditioned including areas A to C, the air conditioning system 100 comprises: indoor units A to C arranged in the areas A to C, and performing air-conditioning so that indoor temperatures of the areas A to C reach set control temperatures; and a controller 70 setting control temperatures of the indoor units A to C. The controller 70 has an adjacent indoor unit influence rate calculation part 71 calculating an adjacent indoor unit influence rate indicating a rate of influence on the indoor temperature of one area by the control temperature of the adjacent indoor unit, and an air-conditioning setting part 77 setting the control temperatures of the indoor units A to C so that a difference between the indoor temperatures of the areas A to C and set temperatures which are set to the indoor units A to C by a user becomes small on the basis of the adjacent indoor unit influence rate.SELECTED DRAWING: Figure 1

Description

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

  2. Description of the Related Art In recent years, air conditioning systems in which a plurality of indoor units are arranged in an air-conditioned space are often used. In addition, reduction of power consumption of the 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 has been proposed in which an indoor unit with a low load factor is stopped and the airflow of an adjacent indoor unit is increased to reduce the power consumption of the entire indoor unit. (See Patent Document 1).

  In addition, when a single continuous air-conditioning space is air-conditioned by a plurality of air-conditioning facilities, an airflow blown from the air-conditioning facility may affect the air-conditioning environment of an adjacent air-conditioning space. For this reason, thermal environment simulation is performed on the air-conditioned space to determine the optimal temperature distribution and the contribution rate of each air-conditioning unit to each position in the air-conditioned space. There has been proposed a control method of performing energy saving of air conditioning by performing temperature control (see Patent Document 2).

JP 2013-134019 A JP 2000-171071 A

  However, in the conventional air conditioning system described in Patent Literature 1, although power consumption can be reduced, there is a problem that the temperature distribution in the air conditioning space varies and the air conditioning environment deteriorates. In the air-conditioning system of the related art described in Patent Document 2, an accurate simulation is a 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-conditioned space. Therefore, there is a problem that practical use is difficult.

  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.

  An air conditioning system of the present invention is an air conditioning system for performing air conditioning of a continuous air conditioning space including one area and at least one adjacent area adjacent to the one area, wherein the air conditioning system is arranged in the one area and One indoor unit that performs air conditioning so that the indoor temperature of the area becomes the set control temperature, and the air outlet is disposed in the adjacent area so that the air outlet faces the air outlet of the one indoor unit, An adjacent indoor unit that performs air conditioning so that the indoor temperature of the adjacent area becomes the set control temperature, and a controller that sets a control temperature of the one indoor unit and a control temperature of the adjacent indoor unit, A controller configured to calculate, for each indoor unit, an adjacent indoor unit influence degree indicating an influence degree of the control temperature of the adjacent indoor unit on the indoor temperature of the one area; Based on the adjacent indoor unit influence degree calculated by the unit influence degree calculation unit, each control of each indoor unit such that a difference between each indoor temperature of each area and each set temperature set by the user for each indoor unit becomes small. And an air conditioning setting unit for setting a temperature.

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

  In the air conditioning system of the present invention, the adjacent indoor unit influence degree calculation unit calculates a difference between a control temperature of the one indoor unit and a basic statistic representing a control temperature of the adjacent indoor unit, The indoor temperature of the one area with respect to the control temperature may be set as the adjacent indoor unit influence degree of the one area.

  Thereby, the degree of influence of the adjacent indoor unit can be represented by a simple numerical value.

  In the air conditioning system of the present invention, the adjacent indoor unit influence degree calculating unit may calculate a difference between one control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and the one area at one control temperature. When calculating the adjacent indoor unit influence degree, based on the calculated adjacent indoor unit influence degree, a difference between another control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and another control The degree of influence of the other adjacent indoor unit on the one area in the temperature may be corrected.

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

  In the air conditioning system of the present invention, the adjacent indoor unit influence degree calculation unit may include a 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 And an adjacent indoor unit influence degree table describing the adjacent indoor unit influence degree with respect to the control temperature 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 calculating unit updates the adjacent indoor unit influence degree table at a predetermined timing, and updates the adjacent indoor unit influence degree table with the adjacent indoor unit influence degree. It may be stored in a storage unit. Further, in the air conditioning system of the present invention, the controller is configured to control the control temperature of the one indoor unit, the control temperature of the adjacent indoor unit, and the adjacent indoor unit influence degree table stored in the adjacent indoor unit influence degree storage unit. And an indoor temperature estimating unit that calculates an estimated indoor temperature of each of the areas based on the air conditioner.The air conditioning setting unit is configured to calculate the estimated indoor temperature between the set temperature and the estimated indoor temperature set by the user for each indoor unit. Each control temperature of each of the indoor units may be set so as to reduce the difference.

  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 of each area and each set temperature set by the user for each indoor unit becomes small. Therefore, excess air conditioning can be easily suppressed according to the actual air conditioning space, and power consumption can be reduced. In addition, since the adjacent indoor unit influence degree table is updated at a predetermined timing, it is possible to suppress excessive air conditioning according to the latest air-conditioned space and reduce power consumption.

  In the air conditioning system of the present invention, the air conditioning system includes at least one outdoor unit connected to the one indoor unit and the adjacent indoor unit, and the outdoor unit forms an air conditioner 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 conditioning equipment, and the air conditioning setting unit calculates a difference between each set temperature set by the user for each indoor unit and each of the estimated indoor temperatures. May be set within a predetermined range, and each control temperature of each indoor unit may be set such that the power consumption calculated by the power consumption calculation unit is minimized.

  Thereby, power consumption can be more effectively reduced while maintaining the air-conditioning 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 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. Good.

  An air conditioning system of the present invention is an air conditioning system for performing air conditioning of a continuous air conditioning space including one area and at least one adjacent area adjacent to the one area, wherein the air conditioning system is arranged in the one area and One indoor unit that performs air conditioning so that the indoor temperature of the area becomes the set control temperature, and the air outlet is disposed in the adjacent area so that the air outlet faces the air outlet of the one indoor unit, An adjacent indoor unit that performs air conditioning so that the indoor temperature of the adjacent area becomes a set control temperature, and a controller that sets a control temperature of each of the indoor units, wherein 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. Characterized in that the control temperature of the one indoor unit user to set lower than the set temperature set to the one indoor unit.

  This can 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 that can reduce power consumption according to an actual air conditioning space.

It is a system diagram showing composition of an air-conditioning system of an embodiment of the present invention. It is a flowchart which shows the basic operation of the air conditioning system of this invention. 3 is a flowchart illustrating an operation of an indoor unit during an adjacent indoor unit influence degree table generation process illustrated in FIG. 2. 3 is a flowchart illustrating an operation of a controller during an adjacent indoor unit influence degree table generation process illustrated in FIG. 2. 3 is a flowchart illustrating an operation of a controller during a room temperature estimation process and a control temperature setting process illustrated in FIG. 2. It is a flowchart which shows operation | movement of an indoor unit in step S106 of FIG. It is a figure showing an example of an adjacent indoor unit influence table. It is a figure which shows the temporary indoor unit influence degree table of the indoor unit A. It is explanatory drawing which shows update of an adjacent indoor unit influence degree table. It is explanatory drawing explaining the operation | movement which calculates an estimated indoor temperature using an adjacent indoor unit influence degree table. It is a system diagram showing composition of an air-conditioning system of other embodiments. It is a flow chart which shows operation of an air-conditioning system of other embodiments. It is a system diagram showing composition of an air-conditioning system of other embodiments. It is a flow chart which shows operation of an air-conditioning system of other embodiments.

  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 continuous air-conditioned space 10 including a first area 11 and two adjacent areas 12 and 13 adjacent to the first area 11. Is what you 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. In addition, also in FIG. 1, the chain line shows the flow of the signal.

  The first indoor unit 20 is mounted on the ceiling in the center of the area A. The second indoor unit 30 and the third indoor unit 40 are arranged on the ceilings of the areas B and C adjacent to the area A such 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 conditioner 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 temperature sensor 21 for control is attached to the indoor unit A, and air conditioning is performed so that the indoor temperature of the area A detected by the temperature sensor 21 for control becomes the set control temperature. Similarly, control temperature sensors 31 and 41 are attached to the indoor units B and C, and the indoor temperatures of the areas B and C detected by the control temperature sensors 31 and 41 become the set control temperature. Perform 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 temperatures of the indoor units A to C.

  In the areas A to C, temperature sensors 51, 52, and 53 for detecting the room temperatures in the areas A to C are arranged. Each of the temperature sensors 51 to 53 may be disposed on, for example, an office desk 14 to 16 so as to detect a room temperature as close as possible to a room temperature felt by a user who is present in each of the areas A to C, It may be arranged at a height of about 1.5 m from a substantially central floor of each of the areas A to C.

  The indoor units A to C, the outdoor unit 60, the remote controllers 22, 32, and 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. The set temperatures set by the user operating the remote controllers 22, 32, and 42 and the room temperatures 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. It includes 77 functional blocks. The controller 70 is a computer having a CPU and a storage unit therein, and the above-described functional blocks are configured by the CPU and the storage unit operating in cooperation. 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 an 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 according to the embodiment will be described with reference to FIGS. First, the basic operation of the air conditioning system 100 will be described with reference to FIG.

  As shown in step S101 in FIG. 2, when the user sets the set temperature by operating each of the remote controllers 22, 32, and 42 corresponding to the indoor units A to C, the set temperature is transmitted to the set temperature acquisition unit 75 of the controller 70. The air conditioning 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 in FIG. 2, the indoor units A to C perform air conditioning control so that the indoor temperatures detected by the control temperature sensors 21, 31, and 41 become the respective control temperatures (= each set temperature). In this case, due to the influence of the adjacent indoor units, the indoor temperatures detected by the temperature sensors 51 to 53 in the areas A to C deviate from the set temperature, and the state is over-air-conditioning. In step S104 of FIG. 2, the adjacent indoor unit influence degree calculating unit 71 of the controller 70 determines that the control temperatures of the indoor units A to C (same as the set temperature in step S104) and the indoor temperature obtaining unit 76 are based on the temperature sensors 51 to 53. Based on the acquired indoor temperature, an adjacent indoor unit influence degree table as shown in FIGS. 7A to 7C is generated.

  In step S105 of FIG. 2, the indoor temperature estimating 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. Estimate the room temperature of each of the areas A to C detected by the temperature sensors 51 to 53 when operated with the set of candidates. Then, in step S106 of FIG. 2, the air conditioning setting unit 77 of the controller 70 sets a set of control temperature candidates at which the estimated indoor temperature is close to the set temperature set by the user as the control temperatures 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, 41 becomes the control temperature set by the controller 70. As a result, the room temperature of each of the areas A to C detected by the temperature sensors 51 to 53 becomes close to the set temperature set by the user, and excessive air conditioning is suppressed.

  As described above, the air conditioning system 100 according to 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. In the following description, a case where an average value is used as a 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 sent to the controller 70. 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 S102 of FIG. As shown in step S202 of FIG. 3, in response to this signal, the control temperatures of the indoor units A to C are set to the set temperatures.

  The indoor units A to C start the air-conditioning operation, and the air-conditioning control is performed such that the indoor temperatures detected by the control temperature sensors 21, 31, and 41 of the indoor units A to C become the control temperature (in this case, the set temperature). I do. Then, as shown in step S203 in FIG. 3, when the room temperature detected by each of the control temperature sensors 21, 31, 41 does not reach the control temperature (= set temperature), the process proceeds to step S205 in FIG. When the air-conditioning operation is continued and the room temperature detected by each of the control temperature sensors 21, 31, 41 reaches the control temperature (= set temperature), the process proceeds to step S204 in FIG. Continue the operation of driving.

  As described above, in this state, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C is shifted from the set temperature due to the influence of the adjacent indoor unit. Therefore, the adjacent indoor unit influence degree calculation unit 71 of the controller 70 generates an adjacent indoor unit influence degree table as shown in FIG. 7 by the operation as shown in FIG. 4 (the adjacent indoor unit degree as shown in step S104 in FIG. 2). Impact table generation processing). Here, the degree of influence of the adjacent indoor unit indicates the degree of influence of the control temperature of the adjacent indoor unit on the room temperature of one area, and “represents the control temperature of one indoor unit and the control temperature of the adjacent indoor unit. The difference from the basic statistic is defined as “the indoor temperature of one area with respect to the control temperature of one indoor unit”. When the average value is used as the basic statistic representing the control temperature of the adjacent indoor unit, the above definition defines one indoor unit in the difference between the control temperature of one indoor unit and the average value of the control temperature of the adjacent indoor unit. The indoor temperature in one area with respect to the control temperature of the indoor unit ", which is different for each indoor unit. For example, the degree of influence of the adjacent indoor unit 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, The difference between the control temperature of C and the average value of the control temperature of the indoor unit A relative to the control temperature of the indoor unit A is “the indoor temperature of the area A”. In the case of the area B (C), since the adjacent indoor unit is only the indoor unit A, “the indoor unit B indicates the degree of influence of the control temperature of the adjacent indoor unit A on the indoor temperature of the area B (C). The difference between the control temperature of (C) and the control temperature of indoor unit A is the indoor temperature of area B (C) with respect to the control temperature of indoor unit B (C). In the following description, a case where the adjacent indoor unit influence degree table of the indoor unit A shown in FIG. 7A is generated will be described as an example. The adjacent indoor unit influence degree table of the indoor unit A is generated by inputting necessary numbers into respective columns 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 in FIG. 4, the set temperature acquisition unit 75 of the controller 70 allows the user to acquire the set temperatures of the indoor units A to C from the remote controllers 22, 32, and 42 corresponding to the indoor units A to C. Now, when generating the adjacent indoor unit influence degree table of the indoor unit A illustrated in FIG. 7A, the acquired set temperature of the indoor unit A is set to “1” in the temporary adjacent indoor unit influence degree table of the indoor unit A illustrated in FIG. Control temperature ". For example, if the set temperature is 26.0 ° C., enter the numeral 26 in the control temperature column. 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 entered in the column of “difference between control temperature of indoor unit A and average value of control temperatures of indoor units B and C” in FIG.

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

  If the controller 70 determines YES in step S302 in FIG. 4, the process proceeds to step S303 in FIG. 4, and the indoor temperature obtaining unit 76 obtains the indoor temperatures of the areas A to C from the temperature sensors 51 to 53. When the adjacent indoor unit influence degree table of the indoor unit A shown in FIG. 7A is generated, as shown in step S304 of FIG. The control temperature of the temporary adjacent indoor unit influence degree table of the indoor unit A shown in FIG. 8 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. Fill in the column corresponding to ° C.

  Then, the controller 70 proceeds to step S305 in FIG. 4, and determines whether 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 step S307 of FIG. The contents of the adjacent indoor unit influence table are updated with the contents of the temporary adjacent indoor unit influence degree table of A.

  On the other hand, if the adjacent indoor unit influence degree calculating section 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. The adjacent indoor unit influence table of the indoor unit A is updated with the average value of the indoor temperature detected by the sensor 51 and the adjacent indoor unit influence degree. Then, the controller 70 stores the updated adjacent indoor unit influence table of the indoor unit A in the adjacent indoor unit influence storage unit 72.

  The controller 70 continues the operation shown in FIG. 3 and FIG. 4 each time the user changes the set temperatures of the indoor units A to C variously during the predetermined period, and influences the adjacent indoor unit of the indoor unit A shown in FIG. Enter numerical values in each column 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 variously. Then, when a predetermined period elapses, an adjacent indoor unit influence degree table 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. 7B and 7C are generated in the same manner as described above. When the generation of the adjacent indoor unit impact degree tables 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 in FIG. 5, the indoor temperature estimating unit 74 of the controller 70 estimates the indoor temperatures 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 temperatures of the indoor units A to C are set to the set temperatures, and the indoor units A to C use the control temperatures (=) of the indoor temperatures detected by the control temperature sensors 21, 31, 41. Air-conditioning control is performed so that the temperature reaches the set temperature. Therefore, by reading the set temperatures of the indoor units A to C into the control temperatures and referring to the adjacent indoor unit influence degree tables of the indoor units A to C shown in FIGS. It is possible to estimate the room temperatures of the areas A to C detected by 51 to 53.

  For example, when all the set temperatures of the indoor units A to C are 26.0 ° C., the average value of the control temperature of the indoor unit A (= set temperature = 26.0 ° C.) and the control temperature of the indoor units B and C (= The difference from (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 as 25.5 ° C. from the indoor unit A adjacent indoor unit influence degree table of FIG. 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. Is calculated as 25.7 ° C. Similarly, the estimated indoor temperature estimated to be detected by the temperature sensor 53 in the 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. Is calculated as 25.7 ° C.

  After the calculation of the estimated indoor temperature by the indoor temperature estimating unit 74 is completed, the controller 70 proceeds to step S402 in FIG. 5, where the air conditioning setting unit 77 determines that the difference between the set temperatures of the areas A to C and the estimated indoor temperature is within the allowable range To determine if it is. The allowable range can be set in various ways. For example, in the case of cooling, the allowable range is a case where each estimated room temperature is in a 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 too low, it may be out of the allowable range due to over-air conditioning. Further, a case where the difference between each estimated room temperature and the set temperature is smaller than a predetermined threshold value may be regarded as an allowable range, and a case where the difference is larger than the predetermined threshold value may be regarded as outside the allowable range.

  In the above example, the set temperatures are all 26.0 ° C., but the estimated indoor temperatures are 25.5 ° C. and 25.7 ° C., which are lower than the set temperatures. Therefore, the air conditioning setting unit 77 of the controller 70 determines NO in step S402 in FIG. 5 and proceeds to step S404 in FIG.

  The air conditioning setting unit 77 of the controller 70 creates a combination of control temperature candidates for the indoor units A to C in step S404 in FIG. As described above, when all of the control temperatures of the indoor units A to C are set to the set temperature of 26.0 ° C. and the operation is performed, the indoor temperatures of the areas A to C are estimated to be lower than 26.0 ° C. . Therefore, 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. In Group 1, the control temperatures were all 26.0 ° C., similar to the current set temperature. This serves as a reference when selecting the control temperature later. In Group 2, the control temperature of the indoor unit A was increased by 1 ° C. to 27.0 ° C., and the control temperatures of the indoor units B and C were kept at 26.0 ° C. In Group 3, the control temperature of the indoor unit A was kept at 26.0 ° C., and the control temperatures of the adjacent indoor units B and C were each set at 27.0 ° C. In group 4, the control temperature of the indoor unit B is kept at 26.0 ° C., and the control temperatures of the indoor units A and C are set at 27.0 ° C.

  Next, the controller 70 proceeds to step S405 of FIG. 5, and when the temperature sensors 51 to 53 detect the control temperatures of the indoor units A to C as a group of the control temperature candidates of the group 1 by the indoor temperature estimating unit 74, The estimated indoor temperature is calculated.

  Group 1 is a case where the control temperatures of the indoor units A to C are all set to 26.0 ° C., so that the average value of the control temperatures of the indoor units B and C is 26.0 ° C. The difference from the average value is 0 ° C. Then, from the description of the control temperature of 26.0 ° C. and the difference of 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. For the areas B and C, the column of the control temperature of 26.0 ° C. and the difference of 0 ° C. in the adjacent indoor unit influence degree table of the indoor unit B shown in FIG. 10E are described, and the indoor unit C shown in FIG. From the description of the column of the control temperature of 26.0 ° C. and the difference of 0 ° C. in the adjacent indoor unit influence degree table of FIG.

  The indoor temperature estimating unit 74 of the controller 70 proceeds to step S406 in FIG. 5 after calculating the estimated indoor temperature in the case where the control temperature is set to the group of the control temperature candidates of the group 1, and in the air conditioning setting unit 77, the area A It is determined whether the difference between the estimated indoor temperature and the set temperature is within an allowable range. As in the case of step S402 in FIG. 5, for example, the case where each estimated indoor temperature is in the range of 0 ° C. to 0.5 ° C. higher than the set temperature in the case of cooling is regarded as an allowable range, When the temperature is lower than the set value, if the temperature is out of the allowable range due to over-air conditioning, the group 1 is out of the allowable range due to over-air conditioning. Therefore, the controller 70 determines NO in step S406 in FIG. The process proceeds to step S407.

  The indoor temperature estimating unit 74 of the controller 70 calculates the estimated indoor temperatures of the areas A to C when the control temperature is set to the next set of the 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 of the control temperature of 27.0 ° C. and the column of the difference −1.0 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 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 of the control temperature of 26.0 ° C. and the difference of +1.0 in the adjacent indoor unit influence degree table of the indoor unit B shown in FIG. 10E, the estimated indoor temperature of the area B is 25.9 ° C. Become. Similarly, the estimated room temperature of the area C is 25.8 ° C. from the adjacent indoor unit influence degree table of the indoor unit C shown in FIG. The indoor temperature estimating unit 74 outputs the result to the air-conditioning setting unit 77 after the calculation of the estimated indoor temperature when the control temperature is set to the group of the control temperature candidates of the group 2 is completed.

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

  The indoor temperature estimating unit 74 of the controller 70 calculates the estimated indoor temperatures of the areas A to C when the control temperature is set as the next set of the 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 of the control temperature of 26.0 ° C. and the column of the difference +1.0 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 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. From the description of the control temperature of 27.0 ° C. and the difference of −1.0 in the adjacent indoor unit influence degree table of the indoor unit B shown in FIG. 10E, the estimated indoor temperature of the area B is 26.3 ° C. It becomes. Similarly, the estimated room temperature of the area C is 26.2 ° C. from the adjacent indoor unit influence degree table of the indoor unit C shown in FIG. The indoor temperature estimating unit 74 outputs the result to the air-conditioning setting unit 77 when the calculation of the estimated indoor temperature when the control temperature is set to the group of the control temperature candidates of the group 3 is completed.

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

  When 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 in FIG. 6, the control temperatures of the indoor units A to C are set to 26.0 ° C., 27.0 ° C., 27 0.0 ° C. respectively. 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.). 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 in 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. To perform the ventilation operation. Also, in the indoor units B and C, in steps S502 to S504 in 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 perform ventilation operation.

  As a result, the room temperatures detected by the temperature sensors 51 to 53 in the 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. And since excess air conditioning can be suppressed in this way, the power consumption of the air conditioning equipment 65 can be reduced.

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

  Further, in the adjacent indoor unit influence degree table generation processing of step S104 of FIG. 2, the controller 70 determines the difference between the one control temperature and the average value of the control temperatures of the adjacent indoor units and the adjacent area of one area at one control temperature. When calculating the indoor unit influence degree, based on the calculated adjacent indoor unit influence degree, the difference between the other control temperature and the average value of the control temperature of the adjacent indoor unit and the other control temperature of one area at another control temperature The degree of influence of the adjacent indoor unit may be corrected.

  For example, in the case of generating the adjacent indoor unit influence degree table of the indoor unit A shown in FIG. 7A, the set temperature is 26.0 ° C., and the average values 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 25.5 ° C. acquired from the temperature sensor 51 by the indoor temperature acquisition unit 76 is stored in the temporary adjacent indoor unit influence table of the indoor unit A shown in FIG. 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 entered in the column corresponding to 0 ° C. At this time, if there is an existing value, the adjacent indoor unit influence degree table is updated with the average value of the existing value and the acquired indoor temperature as the adjacent indoor unit influence degree. The adjacent indoor unit influence degree is updated by the ratio with the acquired value, and the adjacent indoor unit influence degree table is updated. This makes it possible to generate a highly accurate adjacent indoor unit influence table in a short time.

  Further, in step S406 of FIG. 5, the case where the difference between each estimated indoor temperature and the set temperature is smaller than a predetermined threshold value may be regarded as an allowable range, and the case where it is larger than the predetermined threshold value may be regarded as out of the allowable range. In this case, the difference between the room temperature in the areas A to C and the set temperature becomes smaller, so that 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.

  Furthermore, in the air-conditioning system 100 of the present embodiment, it has been described that the temperature sensors 21, 31, 41 for control are attached to the indoor units A to C. It may be installed in a place.

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

  Next, an air conditioning system 200 according to another embodiment will be described with reference to FIGS. Parts similar to those of the air conditioning system 100 according to the embodiment described above with reference to FIGS. 1 to 10 are denoted by the same reference numerals, and 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. 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.

  If the air conditioning system 200 determines YES in step S406 in FIG. 12, the process proceeds to step S410 in FIG. 12, and the air conditioning system when the set of control temperature candidates determined YES in step S406 in FIG. 65 power consumption is calculated. Then, in step S411 in FIG. 12, it is determined whether the power consumption is the minimum among the set of control temperature candidates determined to be YES in step S406 in FIG. If YES is determined in step S411 in FIG. 12, the process proceeds to step S408 in FIG. 4, and in step S406, YES, a set of control temperature candidates that minimizes power consumption is set as a control temperature.

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

  An air conditioning system 300 according to another embodiment of the present invention will be described with reference to FIGS. The controller 70 of the air conditioning system 300 according to the present embodiment includes only a set temperature acquisition unit 75, an indoor temperature acquisition unit 76, and an air conditioning setting unit 77.

  As described above, when all the set temperatures of the indoor units A to C are the same, due to the influence of the adjacent indoor unit, in the case of cooling, the indoor temperature detected by the temperature sensors 51 to 53 in the areas A to C is not sufficient. In the case of heating, the room temperature detected by the temperature sensors 51 to 53 in the areas A to C is higher than the set temperature, and the excessive cooling operation is performed.

  Therefore, when the control temperature of one indoor unit and the control temperature of the adjacent indoor unit are the same, the air conditioning system 300 of this embodiment allows the user to set the control temperature of one indoor unit during cooling operation to one indoor unit. The set temperature is set higher than the set temperature, and the control temperature of one indoor unit during the 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 whether or not the set temperatures of the indoor units A to C are all the same in step S601 of FIG. In the same case, when it is determined that the cooling operation is performed in step S602 in FIG. 14, the process proceeds to step S603 in FIG. 14, and the control temperatures of the indoor units A to C are set to the set temperatures set by the user to the indoor units A to C. Set higher than

  When it is determined that the operation is not the cooling operation in step S602 of FIG. 14 but the heating operation in step S604 of FIG. 14, the process proceeds to step S605 of FIG. ＣC is set lower than the set temperature.

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

  10 air conditioning space, 11 to 13 areas, 20, 30, 40 indoor unit, 21, 31, 41, temperature sensor for control, 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 influence degree calculation unit, 72 adjacent indoor unit influence degree storage unit, 73 indoor unit arrangement storage unit, 74 indoor temperature estimation unit, 75 set temperature acquisition unit, 76 indoors Temperature acquisition unit, 77 air conditioning setting unit, 78 power consumption calculation unit, 100, 200, 300 air conditioning system.

Claims (9)

An air conditioning system for performing air conditioning of one area and a continuous air conditioning space including at least one adjacent area adjacent to the one area,
One indoor unit that is arranged in the one area and performs air conditioning so that the indoor temperature of the one area becomes a set control temperature,
An adjacent indoor unit that is arranged in the adjacent area so that the air outlet faces the air outlet of the one indoor unit, and performs air conditioning so that the indoor temperature of the adjacent area becomes a set control temperature,
A controller that sets a control temperature of the one indoor unit and a control temperature of the adjacent indoor unit,
With
The controller is
An adjacent indoor unit influence degree calculation unit that calculates an adjacent indoor unit influence degree representing 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 such that a difference between each indoor temperature of each area and each set temperature set by the user for each indoor unit is reduced. An air conditioning setting unit that sets each control temperature of
An air conditioning system characterized by the following. The air conditioning system according to claim 1,
The adjacent indoor unit influence degree calculation unit,
The difference between the control temperature of the one indoor unit and the basic statistic representing the control temperature of the adjacent indoor unit, the room temperature of the one area with respect to the control temperature of the one indoor unit, Said adjacent indoor unit influence degree,
An air conditioning system characterized by the following. The air conditioning system according to claim 2,
The adjacent indoor unit influence degree calculation unit,
When calculating the difference between the one control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and the adjacent indoor unit influence degree of the one area at one control temperature, the calculated adjacent indoor unit Based on the device influence degree, the difference between the other control temperature and the basic statistic representing the control temperature of the adjacent indoor unit and the other adjacent indoor unit influence degree of the one area at another control temperature are corrected. To do,
An air conditioning system characterized by the following. The air conditioning system according to claim 2 or 3,
The adjacent indoor unit influence degree calculation unit,
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, and the adjacent indoor unit describing the degree of influence of the adjacent indoor unit on the one indoor unit Generating an indoor unit impact table for each indoor unit and storing it in the adjacent indoor unit impact storage unit;
An air conditioning system characterized by the following. The air conditioning system according to claim 4,
The adjacent indoor unit influence degree calculation unit,
Updating the adjacent indoor unit impact table at a predetermined timing, and storing the updated adjacent indoor unit impact table in the adjacent indoor unit impact storage unit;
An air conditioning system characterized by the following. The air conditioning system according to claim 4 or 5,
The controller is
The estimated indoor temperature of each area based on the control temperature of the one indoor unit, the control temperature of the adjacent indoor unit, and the adjacent indoor unit influence table stored in the adjacent indoor unit influence storage unit. It has an indoor temperature estimating unit to calculate each,
The air conditioning setting unit sets each control temperature of each indoor unit such that a difference between each set temperature set by the user for each indoor unit and each estimated indoor temperature is reduced.
An air conditioning system characterized by the following. The air conditioning system according to claim 6,
Including at least one outdoor unit connected to the one indoor unit and the adjacent indoor unit,
The outdoor unit constitutes an air conditioner together with the one indoor unit and the adjacent indoor unit,
The controller is
Having a power consumption calculation unit for calculating the power consumption of the air conditioning equipment,
The air-conditioning setting unit is configured such that a difference between each set temperature set by the user for each indoor unit and each of the estimated indoor temperatures is within a predetermined range, and the power consumption calculated by the power consumption calculation unit is minimized. Setting each control temperature of each indoor unit,
An air conditioning system characterized by the following. The air conditioning system according to any one of claims 2 to 7,
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 characterized by the following. An air conditioning system for performing air conditioning of one area and a continuous air conditioning space including at least one adjacent area adjacent to the one area,
One indoor unit that is arranged in the one area and performs air conditioning so that the indoor temperature of the one area becomes a set control temperature,
An adjacent indoor unit that is arranged in the adjacent area so that the air outlet faces the air outlet of the one indoor unit, and performs air conditioning so that the indoor temperature of the adjacent area becomes a set control temperature,
A controller for setting the control temperature of each indoor unit,
With
The controller is
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. Setting, the control temperature of the one indoor unit during the heating operation is set lower than the set temperature set by the user to the one indoor unit,
An air conditioning system characterized by the following.