Air conditioning control device, air conditioning control method, and program

Abstract

An air-conditioning control device according to the present disclosure comprises: a temperature storing unit that stores, in association with each other, an elapsed time that a blowing unit for blowing air indoors has been operating, a setting temperature, and an indoor temperature; a calculating unit that calculates an index based on a change, within the elapsed time, in the indoor temperature with respect to the setting temperature, on the basis of the elapsed time, the setting temperature, and the indoor temperature stored in the temperature storing unit; and a control unit that controls operation content of the blowing unit on the basis of the index calculated by the calculating unit.

Description

[Technical field]

[0001] The present disclosure relates to an air conditioning control device, an air conditioning control method, and a program. [Background technology]

[0002] Conventionally, there is known an air conditioner that performs control to ensure a comfortable feeling for the user, as described in Patent Document 1, for example. The air conditioner of Patent Document 1 calculates the sensible temperature of the human body based on temperature information obtained from the instantaneous state during operation. This air conditioner selects the part of the human body to which the wind is directed according to the elapsed time since the detection of the human body, based on an indoor environment table that associates the indoor environment level based on the sensible temperature with the indoor temperature and humidity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2015-038402 A Summary of the Invention [Problem to be solved by the invention]

[0004] The air conditioner described in the above-mentioned Patent Document 1 calculates the human perceived temperature based on temperature information obtained from the instantaneous state during operation and selects the part of the human body to which the wind is directed depending on the elapsed time. However, this air conditioner does not calculate the human perceived temperature taking into account changes in the indoor environment over time.

[0005] For example, air conditioners are known that have a function to temporarily operate at high capacity after operating a remote control (hereinafter referred to as powerful operation) in order to satisfy the user's need to have the room temperature reach the set temperature quickly. Powerful operation during cooling operation operates at a low blowing temperature and high air volume. Powerful operation during heating operation operates at a high blowing temperature and high air volume. For this reason, immediately after the start of powerful operation, the user can feel more comfortable as the wind hits them directly, but as time passes, the comfort level may decrease due to excessive wind hitting the user.

[0006] Therefore, the air conditioning device described in Patent Document 1 does not take into account changes in the indoor environment over time in the calculated human perceived temperature, so there is a possibility that the longer the elapsed time, the lower the sense of comfort. In addition, even if this air conditioning device selects the part of the human body to which the wind is blown according to the elapsed time, there is a possibility that the sense of comfort will be lowered. Furthermore, this air conditioning device does not take into account the set temperature set by the user to calculate the human perceived temperature. Therefore, this air conditioning device does not take into account the user's preferences or usage method.

[0007] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an air conditioning control device, an air conditioning control method, and a program that can control operation by taking into account changes in indoor temperature relative to a set temperature over time. [Means for solving the problem]

[0008] An air conditioning control device according to a first aspect includes a temperature storage unit that stores an elapsed time during which an air blower unit that blows air into a room has been operating, a set temperature, and an indoor temperature in association with each other; a calculation unit that calculates an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the elapsed time, the set temperature, and the indoor temperature stored in the temperature storage unit; and a control unit that controls operation of the air blower unit based on the index calculated by the calculation unit, and the calculation unit calculates a product value of the set temperature and the elapsed time as follows: The indoor temperature when the indoor unit starts operatingThe ratio of the integrated value of the difference with a function representing the change in the indoor temperature during the period when the air blowing unit is operating is calculated as the index.

[0009] An air conditioning control method according to a second aspect includes the steps of: operating an air blower that blows air into a room; storing, while the air blower is operating, an elapsed time during which the air blower has operated, a set temperature, and an indoor temperature in association with each other; calculating an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the stored elapsed time, the set temperature, and the indoor temperature; and controlling operation of the air blower based on the calculated index, wherein the index is a ratio of the product of the set temperature and the elapsed time to: The indoor temperature when the indoor unit starts operating The temperature is calculated as a ratio of an integrated value of the difference with a function representing the change in the indoor temperature during the period when the blower is operating.

[0010] A program according to a third aspect causes a computer to execute the steps of: operating an air blowing unit that blows air into a room; storing, while the air blowing unit is operating, an elapsed time during which the air blowing unit has operated, a set temperature, and an indoor temperature in association with each other; calculating an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the stored elapsed time, the set temperature, and the indoor temperature; and controlling operation of the air blowing unit based on the calculated index, wherein the index is a ratio of the product of the set temperature and the elapsed time to The indoor temperature when the indoor unit starts operating The temperature is calculated as a ratio of an integrated value of the difference with a function representing the change in the indoor temperature during the period when the blower is operating. Effect of the Invention

[0011] According to the present disclosure, operation can be controlled taking into consideration changes over time in the indoor temperature relative to the set temperature. [Brief description of the drawings]

[0012] [Figure 1] 1 is an external view showing an example of an indoor unit of an air conditioner according to a first embodiment. [Diagram 2] 1 is an internal configuration diagram illustrating an example of an indoor unit of an air conditioner according to a first embodiment. [Diagram 3] FIG. 2 is an internal configuration diagram of the left-right center of the indoor unit of the air conditioner according to the first embodiment. [Figure 4] 4 is a block diagram showing an example of the functions of a control unit according to the first embodiment. FIG. [Diagram 5] FIG. 4 is a diagram showing the relationship between the room temperature, the set temperature, the elapsed time, and the dimensionless index ACS in the first embodiment. [Figure 6] FIG. 11 is a diagram showing a dimensionless index ACS1 in an initial stage in the first embodiment. [Figure 7] FIG. 13 is a diagram showing a dimensionless index ACS2 in the middle stage in the first embodiment. [Figure 8] FIG. 13 is a diagram showing a dimensionless index ACS3 in the final stage in the first embodiment. [Figure 9] FIG. 11 is a block diagram showing an example of the functions of a control unit according to a second embodiment. [Figure 10] FIG. 13 is a diagram illustrating an example of a scene table in the second embodiment. [Figure 11] FIG. 13 is a block diagram showing an example of the functions of a control unit according to a third embodiment. [Figure 12] FIG. 13 is a diagram showing the relationship between elapsed time, room temperature, set temperature, and ACS in the third embodiment. [Figure 13] FIG. 13 is another diagram showing the relationship between the elapsed time, the room temperature, the set temperature, and the ACS in the third embodiment. [Figure 14] FIG. 13 is a block diagram showing an example of the functions of a control unit in the fourth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Note that the scope of the present disclosure is not limited to the following embodiment, and can be changed as desired within the scope of the technical idea of ​​the present disclosure. In addition, in the following drawings, the scale and number of each structure may be different from the scale and number of the actual structure in order to make each configuration easier to understand.

[0014] (First embodiment) Fig. 1 is an external view showing an example of an indoor unit 100 according to the first embodiment. Fig. 2 is an internal configuration diagram showing an example of the indoor unit 100 according to the first embodiment. As shown in FIG. 1, the indoor unit 100 (hereinafter referred to as the "indoor unit 100") includes, for example, a main body case 1 and a front panel 2. Electronic components and driving components are housed inside the main body case 1. The front panel 2 is a member that covers the front surface of the main body case 1. The indoor unit 100 draws in air from above the main body case 1 and sends the air that has exchanged heat out from below the main body case 1 to the indoor space. As shown in FIG. 2, left and right air direction vanes 6 are provided at the opening below the main body case 1. An indoor temperature sensor 7 and an electrical equipment box 8 are arranged on the right side inside the indoor unit 100. A control board and the like are housed inside the electrical equipment box 8.

[0015] 3 is an internal configuration diagram of the indoor unit 100 in the left-right center of the first embodiment. An intake port 1a is formed on the top surface of the main body case 1 for drawing air around the indoor unit 100 into the indoor unit. An outlet port 1b is formed on the lower side of the main body case 1 for blowing the air drawn into the indoor unit 100 to the outside of the indoor unit 100. The indoor unit 100 has a front outlet air passage surface 1c and a rear outlet air passage surface 1d that form an indoor unit air passage leading from the intake port 1a to the outlet port 1b.

[0016] A heat exchanger 3 and a blower fan 4 are arranged in the indoor unit 100. The blower fan 4 takes in indoor air from the intake port 1a, passes the air through the heat exchanger 3, and blows the air out from the outlet port 1b into the indoor space. The blower fan 4 is, for example, a cross-flow fan. The cross-flow fan is installed horizontally in the indoor unit 100 so that its axis of rotation is in the left-right direction of the main body case 1. The heat exchanger 3 is arranged in the air flow generated by the blower fan 4. The heat exchanger 3 exchanges heat between the air sucked into the indoor unit through the intake port 1a and the refrigerant, generating conditioned air.

[0017] The air outlet 1b of the indoor unit 100 is provided with an up-down air deflector 5. The up-down air deflector 5 adjusts the direction of the air blown out from the air outlet 1b into the indoor space in the up-down direction by changing the operating angle. The up-down air deflector 5 can be freely rotated in the up-down direction around a rotation shaft (not shown) extending in the left-right direction of the indoor unit 100. Specifically, a drive motor (not shown) attached to the left and right inside the main body case 1 is connected to the rotation shaft of the up-down air deflector 5, and the up-down air deflector 5 is freely rotated in the up-down direction by operating the drive motor. This makes it possible to freely blow the conditioned air generated inside the indoor unit 100 in the up-down direction.

[0018] The air outlet 1b of the indoor unit 100 is provided with a left / right air deflector 6. The left / right air deflector 6 adjusts the direction of the air blown out from the air outlet 1b into the indoor space to the left / right direction by changing the operating angle. Each of the left / right air deflectors 6 can freely rotate in the left / right direction of the indoor unit 100. Specifically, a drive motor (not shown) is connected to the rotation shaft of the left / right air deflector 6, and the left / right air deflector 6 is freely rotated in the left / right direction by operating the drive motor. This makes it possible to freely blow the conditioned air generated inside the indoor unit to the left and right directions.

[0019] In the embodiment, the blower fan 4, the up / down louvers 5, and the left / right louvers 6 are an example of the blower unit 100a that blows air into the room. The blower unit may include the heat exchanger 3, and may include other components that adjust the temperature of the air sent into the room, such as a flow path for circulating a refrigerant or an outdoor unit. In the following description, a device that includes an indoor unit, an outdoor unit, and a refrigerant circulation flow path is also referred to as an air conditioner.

[0020] FIG. 4 is a block diagram showing an example of the functions of the control unit 20 in the first embodiment. The indoor unit 100 includes, for example, the control unit 20. The control unit 20 is, for example, an example of an air conditioning device, and is realized by mounting a processor such as a (Central Processing Unit) and a memory unit on a control board. The control unit 20 is connected to, for example, the up-down air deflector 5, the left-right air deflector 6, the indoor temperature sensor 7, and the external device 10. The indoor temperature sensor 7 outputs a signal indicating the indoor temperature to the control unit 20. The external device 10 is, for example, a remote controller. The remote controller outputs a wireless signal to the control unit 20. The remote controller includes operation buttons and a display unit operated by the user. The remote controller accepts the user's operation and outputs an operation signal to the control unit 20. The operation signal may indicate, for example, an operation mode and a set temperature indicating the indoor temperature desired by the user. The external device 10 may be an operation panel embedded in a wall of the indoor space, or a smartphone operated by the user.

[0021] The control unit 20 includes, for example, a receiving unit 22, an elapsed time measurement unit 24, an external information storage unit 26, an arithmetic processing unit 28, a design information storage unit 30, a judgment processing unit 32, and an air blowing control unit 34. Each unit, such as the receiving unit 22, the elapsed time measurement unit 24, the external information storage unit 26, the arithmetic processing unit 28, the design information storage unit 30, the judgment processing unit 32, and the air blowing control unit 34, may be mounted on either the outdoor unit or the indoor unit, or may be distributed and mounted on the outdoor unit and the indoor unit.

[0022] The receiving unit 22 receives signals from the indoor temperature sensor 7 and the external device 10. The elapsed time measuring unit 24 measures the elapsed time from when the indoor unit 100 starts operating, for example.

[0023] The external information storage unit 26 and the design information storage unit 30 are realized by non-volatile or volatile semiconductor memory such as a random access memory (RAM), a read only memory (ROM), a flash memory, an erasable programmable read only memory (EPROM), an electrically erasable and programmable ROM (EEPROM), etc. The external information storage unit 26 stores the elapsed time during which the blower unit 100a has operated, the set temperature set by the external device 10, and the indoor temperature detected by the indoor temperature sensor 7 in association with each other. The external information storage unit 26 is an example of a temperature storage unit.

[0024] The calculation processing unit 28, the judgment processing unit 32, and the airflow control unit 34 are realized by a processor such as a CPU (Central Processing Unit) executing a program stored in a program memory. Software, firmware, or a combination of software and firmware is written as a program, and the program is stored in the program memory. In addition, some or all of the functional units may be realized by hardware such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), or an FPGA (Field-Programmable Gate Array), or may be realized by software and hardware working together. The calculation processing unit 28 calculates an index based on the change in the indoor temperature relative to the set temperature over the elapsed time based on the elapsed time, the set temperature, and the indoor temperature stored in the external information storage unit 26.

[0025] The design information storage unit 30 stores information that associates each of a plurality of stages divided based on a threshold value with information indicating the operation content of the blower unit 100a. The information stored in the design information storage unit 30 is, for example, information determined at the design stage of the indoor unit 100. In the following description, the information indicating the operation content of the blower unit 100a is referred to as indoor unit operation information. The determination processing unit 32 determines the indoor unit operation information by comparing the index calculated by the calculation processing unit 28 with the threshold value. The air blowing control unit 34 controls the operation of the blower unit 100a according to the indoor unit operation information determined by the determination processing unit 32.

[0026] Fig. 5 is a diagram showing the relationship between the indoor temperature [°C], the set temperature [°C], the elapsed time [min (minutes)], and the dimensionless index ACS in the first embodiment. The dimensionless index ACS is an example of an index calculated by the calculation processing unit 28. In Fig. 5, the indoor temperature when the elapsed time is X0 is T0, and the elapsed time during which the indoor unit 100 has operated in the cooling mode is x1, x2, ... x n-1 , x n Then, the indoor temperatures are T0, T1, T2, T n-1 , T n As shown, the temperature gradually increases to the set temperature T target Approaching.

[0027] The calculation processing unit 28 calculates x n At the set temperature T target and the indoor temperature T n In accordance with the following formula 1, the dimensionless index ACS n Calculate the following.

number

[0028] In formula 1, x0 to x n is the time during the elapsed time. T0 is the room temperature (initial temperature) when the indoor unit 100 starts operating. In other words, T0 is the dimensionless index ACS n is the indoor temperature at time X0 when counting the elapsed time recorded in the external information storage unit 26 when calculating f(x n ) is time xn-1 From x n Temperature change up to (T n-1 From T n ) is a linear function that expresses time x n-1 From x n The period from the set temperature T target and time X n The initial temperature T0 and the previous calculation time x n-1 From the previous calculation time x n The temperature function f(x n ) and the time integral of the difference between them is expressed as a dimensionless index ACS n The calculation processing unit 28 calculates the dimensionless index ACS n is calculated. The dimensionless index ACS becomes larger as the time that has elapsed since the indoor unit 100 started operating becomes longer and the indoor temperature approaches the set temperature. In other words, the dimensionless index ACS may be interpreted as a value corresponding to the progress until the indoor temperature reaches the set temperature. Note that the index is not limited to Equation 1, and other calculation formulas may be used to calculate the index as long as the index is based on the change in the indoor temperature relative to the set temperature over the elapsed time.

[0029] Fig. 6 is a diagram showing a dimensionless index ACS1 in an initial stage in the first embodiment. Fig. 7 is a diagram showing a dimensionless index ACS2 in a middle stage in the first embodiment. Fig. 8 is a diagram showing a dimensionless index ACS3 in a final stage in the first embodiment. When the time x1 during the elapsed time is reached after the indoor unit 100 starts operating, the dimensionless index ACS1 becomes 20, when the time x2 during the elapsed time is reached, the dimensionless index ACS1 becomes 50, and when the time x3 during the elapsed time is reached, the dimensionless index ACS 3= Assume that the stage is 80. As shown in Fig. 6, for example, the stage from non-dimensional index ACS0 = 0 to non-dimensional index ACS1 = 20 is defined as the initial stage. As shown in Fig. 7, for example, the stage from non-dimensional index ACS1 = 20 to non-dimensional index ACS2 = 50 is defined as the middle stage. As shown in Fig. 8, for example, the stage from non-dimensional index ACS2 = 50 to non-dimensional index ACS3 = 80 is defined as the final stage.

[0030] For example, in the design stage of the indoor unit 100, the dimensionless index ACS1, the dimensionless index ACS2, and the dimensionless index ACS3 are set as threshold values. Also, in the design stage, indoor unit operation information corresponding to the initial stage, the intermediate stage, and the final stage are set. The set threshold values ​​and the indoor unit operation information corresponding to each stage are stored in the design information storage unit 30. As a result, the judgment processing unit 32 determines whether or not the indoor unit operation information corresponding to the initial stage, the intermediate stage, and the final stage correspond to the current elapsed time. n The dimensionless index ACS calculated in n and each stage, the dimensionless index ACS n The airflow control unit 34 determines which stage the dimensionless index ACS n The indoor unit 100 is controlled in accordance with the indoor unit operation information corresponding to the stage to which the stage belongs. Note that, although the number of stages is three as described above, it is not limited to this and may be more or less than three.

[0031] For example, the operation of the indoor unit 100 when performing powerful operation to make the indoor temperature reach the set temperature in a short time will be described. In the initial stage, the indoor temperature is far from the set temperature, so the indoor unit 100 operates the up / down air deflectors 5 and the left / right air deflectors 6 to blow air directly on the user. In the middle and final stages, the indoor temperature is approaching the set temperature, so the indoor unit 100 operates the up / down air deflectors 5 and the left / right air deflectors 6 to prevent the air from blowing directly on the user. In this way, the indoor unit 100 can increase the user's comfort in the initial stage, and can make the indoor temperature reach the set temperature in a short time while suppressing a decrease in comfort by avoiding excessive cooling or heating in the middle and final stages.

[0032] The design information storage unit 30 may store information associating the operation mode of the indoor unit 100 with a threshold value and indoor unit operation information. The operation modes of the indoor unit 100 are, for example, the above-mentioned powerful operation, power saving operation that suppresses power consumption, and quiet operation. The operation mode of the indoor unit 100 is set, for example, based on a user's operation. This allows the control unit 20 to control the operation of the indoor unit 100 so that the stored operation content of the indoor unit 100 is achieved, based on the result of comparing the threshold value corresponding to the set operation mode of the indoor unit 100 with the index.

[0033] As shown in FIG. 6, the indoor unit 100 n Dimensionless index ACS calculated based on the indoor temperature up to n If T is included in the step smaller than 20, the vertical air deflector 5 is moved downward, the horizontal air deflector 6 is moved forward, and the blower fan 4 is operated at a high operating speed. As a result, the indoor temperature is changed from T0 to T n Then, as shown in Fig. 7, the output drops rapidly to x n Dimensionless index ACS calculated based on the indoor temperature up to n When the stage transitions from 20 to 50, the indoor unit 100 swings the vertical louvers 5, moves the horizontal louvers 6 to the front, and operates the blower fan 4 at a high operating speed. After that, as shown in FIG. 8, at time x n Dimensionless index ACS calculated based on the indoor temperature up to n When the stage transitions from 50 to 80, the indoor unit 100 operates the vertical air deflectors 5 in the upward direction, the horizontal air deflectors 6 in the wide direction, and the blower fan 4 at a high operating speed. In this way, the indoor unit 100 gradually prevents the airflow from directly hitting the user by changing the vertical air deflectors 5 to the upward direction, and can suppress a decrease in comfort by avoiding excessive cooling or heating. Furthermore, at a stage where there is a difference between the indoor temperature and the set temperature, the indoor unit 100 performs operation while maintaining the operating speed of the blower fan 4, thereby allowing the indoor temperature to reach the set temperature in a short time. Thereafter, as shown in FIG. 8, when the elapsed time x from the start of operation n Dimensionless index ACS in nis greater than 80, the indoor unit 100 operates the vertical air deflectors 5 in the upward direction, the horizontal air deflectors 6 in the wide direction, and the blower fan 4 at a low operating speed. In this way, when the indoor temperature has almost reached the set temperature, the indoor unit 100 also changes the operating speed of the blower fan 4 to avoid excessive cooling or heating and suppress a decrease in comfort.

[0034] As described above, the control unit 20 of the first embodiment includes an external information storage unit 26 that stores the elapsed time during which the air blower unit 100a has operated, the set temperature set by the external device 10, and the indoor temperature detected by the indoor temperature sensor 7 in association with each other, a calculation processing unit 28 that calculates an index based on the change in the indoor temperature relative to the set temperature over the elapsed time based on the elapsed time, the set temperature, and the indoor temperature stored in the external information storage unit 26, and a determination processing unit 32 and an air blowing control unit 34 that control the operation of the air blower unit 100a based on the index calculated by the calculation processing unit 28. This control unit 20 can control the operation in consideration of the change in the indoor temperature relative to the set temperature over time.

[0035] Furthermore, the control unit 20 can store information associating the operation mode of the air blower 100a with a threshold value and indoor unit operation information, and control the operation of the air blower 100a based on the comparison result between the threshold value corresponding to the stored operation mode and the index calculated by the calculation processing unit 28. As a result, the control unit 20 can perform control appropriate to the operation time of the operation mode.

[0036] (Second embodiment) 9 is a block diagram showing an example of the functions of the control unit 20A in the second embodiment. The indoor unit 100 in the second embodiment differs from the first embodiment in that the operation of the indoor unit 100 is controlled based on the scene in which the indoor unit 100 operates. The scene in which the indoor unit 100 operates is a scene in which the indoor unit 100 is used, such as a quick scene, a sleep scene, a return home scene, and a wake-up scene.

[0037] FIG. 10 is a diagram showing an example of a scene table 30A in the second embodiment. The scene table 30A is table data in which a scene, an operation item, an operation content, and a threshold value corresponding to the operation content are associated with each other. The operation item and the operation content are information corresponding to indoor unit operation information. The operation item is information indicating a part of the air conditioner to be controlled, and includes, for example, information indicating the blower fan 4, the up / down louvers 5, and the left / right louvers 6. It is desirable that the air volume of the blower fan 4, the operation of the up / down louvers 5, and the operation of the left / right louvers 6 are changed depending on the scene. In addition, it is desirable that the dimensionless index ACS1 corresponding to the initial stage, the dimensionless index ACS2 corresponding to the middle stage, and the dimensionless index ACS3 corresponding to the final stage are different depending on the scene.

[0038] The design information storage unit 30 acquires scene setting information from the external device 10. The scene setting information may be information indicating a scene determined based on parameters such as time information, location information, information identifying a user, or user operation information. The design information storage unit 30 refers to the scene table 30A and extracts information corresponding to the scene indicated by the acquired scene setting information. The determination processing unit 32 determines the operation item and the operation content based on the information extracted by the design information storage unit 30 and the dimensionless index ACS calculated by the calculation processing unit 28. The air blowing control unit 34 controls each unit of the indoor unit 100 according to the determined operation item and operation content.

[0039] For example, in the case of a sleeping scene, the control unit 20A calculates a dimensionless index ACS n In the initial stage up to 30 (ACS1), the control unit 20A swings the vertical louvers 5 and the horizontal louvers 6. This allows the control unit 20A to operate the indoor unit 100 so that the user is blown a moderate amount of air. n When the temperature exceeds ACS3, the vertical louvers 5 and horizontal louvers 6 are operated so that the wind does not blow directly on the user. In this way, the control unit 20A operates the indoor unit 100 to prevent the user's skin from drying out.

[0040] According to the control unit 20A of the second embodiment, the threshold value corresponding to the scene and the calculated dimensionless index ACS n Based on the comparison result, the operation of the indoor unit 100 is controlled so that the operation of the indoor unit 100 is performed. As a result, the indoor unit 100 can control operation in consideration of the change over time of the indoor temperature relative to the set temperature in accordance with the scene. Furthermore, the control unit 20A can eliminate the hassle of the user having to change the operation of the indoor unit 100 by themselves depending on the scene.

[0041] Since the known index is calculated by correction or conversion that is one-to-one associated with the absolute value of the temperature obtained by a sensor or the like, it is necessary to perform design for each of the multiple temperatures. For this reason, when the known index is used, a large design load is required, and a large memory capacity is required for the information set at the design stage. In contrast, according to the control unit 20A of the second embodiment, since the dimensionless index ACS is used instead of the index corresponding only to the absolute value of the temperature, it is possible to set indoor unit operation information indicating general-purpose operation contents corresponding to the stage using the dimensionless index ACS. Therefore, according to the control unit 20A of the second embodiment, it is possible to reduce the memory capacity for the scene table, which suppresses the load at the design stage. As a result, according to the control unit 20A of the second embodiment, it is possible to increase the number of scenes that can be set.

[0042] (Third embodiment) FIG. 11 is a block diagram showing an example of the functions of the control unit 20B in the third embodiment. The control unit 20B in the third embodiment differs from the first and second embodiments in that it controls the operation of the indoor unit 100 based on learning information based on a user's operation. The control units in the first and second embodiments described above use a dimensionless index ACS n Based on the above, a threshold value is set in advance, and control is performed according to indoor unit operation information associated with the stage determined by the threshold value. However, the control unit 20B of the third embodiment does not need to set a threshold value in advance.

[0043] The control unit 20B in the third embodiment includes a learning information storage unit 30B instead of the design information storage unit 30. The learning information storage unit 30B acquires user operation information from the external device 10, and stores learning information based on the acquired user operation information. The learning information is, for example, information that instructs operation of the indoor unit 100 according to the user's intention, and includes information indicating the operation content of the indoor unit 100.

[0044] For example, an arbitrary elapsed time T after the indoor unit 100 starts operating z When the user changes the setting of the vertical louvers 5 at the time of the elapsed time T z Dimensionless index ACS in z The determination processing unit 32 receives the dimensionless index ACS n and obtain the dimensionless index ACS n The determination processing unit 32 extracts learning information corresponding to the dimensionless index ACS n The setting change content corresponding to the setting change content is supplied as a determination result to the air blow control unit 34. The air blow control unit 34 controls the operation of the indoor unit 100 based on the setting change content. This allows the control unit 20B to automatically control the operation of the indoor unit 100 in accordance with the setting change content based on the user's operation.

[0045] For example, the control unit 20B may calculate the dimensionless index ACS m Assume that the same setting change content is received γ times within the range of ±β. In this case, the learning information storage unit 30B stores the dimensionless index ACS m The determination processing unit 32 may store the dimensionless index ACS calculated by the calculation processing unit 28 as learning information. n is the dimensionless index ACS m If it falls within the range of ±δ, the dimensionless index ACS m The determination processing unit 32 extracts learning information corresponding to the dimensionless index ACS mThe control unit 20B supplies the setting change content corresponding to the setting change content to the air blow control unit 34 as a judgment result. The air blow control unit 34 controls the operation of the indoor unit 100 based on the setting change content. This allows the control unit 20B to automatically control the operation of the indoor unit 100 in accordance with the setting change content based on the user's operation. Note that α, β, γ, and δ are constants determined at the design stage of the control unit 20B.

[0046] Fig. 12 is a diagram showing the relationship between the elapsed time, the room temperature, the set temperature, and the dimensionless index ACS in the third embodiment, and Fig. 13 is another diagram showing the relationship between the elapsed time, the room temperature, the set temperature, and the dimensionless index ACS in the third embodiment. n Assume that the learning information storage unit 30B receives operation information for operating the vertical air deflector 5 in a downward direction, the horizontal air deflector 6 in a forward direction, and the blower fan 4 at a high operating speed. In this case, the learning information storage unit 30B stores the dimensionless index ACS n 13, the control unit 20 stores the indoor unit operation information based on the operation information in association with the time x n Dimensionless index ACS n When the temperature reaches 30, the blower section 100a can be controlled in accordance with the indoor unit operation information stored in the learning information memory section 30B to operate the upper and lower air deflectors 5 in a downward direction, the left and right air deflectors 6 in a forward direction, and the blower fan 4 at a high operating speed.

[0047] As described above, according to the control unit 20B of the third embodiment, the learning information storage unit 30B is provided for storing, as learning information, the operation information based on the user's operation and the dimensionless index ACS calculated when the operation information is received, and the dimensionless index ACS calculated by the calculation processing unit 28 is stored in the learning information storage unit 30B. nand the dimensionless index ACS stored in the learning information storage unit 30B, and controls the operation of the indoor unit 100 based on the operation information stored in the learning information storage unit 30B. According to the control unit 20B of the third embodiment, even if a user performs an operation to change the settings while the indoor unit 100 is operating, the operation content can be stored in the learning information storage unit 30B in association with the dimensionless index ACS. As a result, according to the control unit 20B of the third embodiment, it is possible to control the operation of the indoor unit 100 based on the dimensionless index ACS, reflecting the user's preferences or the user's unique usage method.

[0048] Since the known index is calculated by a correction or conversion that is one-to-one associated with the absolute value of the temperature obtained by a sensor or the like, there is no versatility even if the user's operation contents are learned by associating them with the temperature value. In order to make the learning result using the known index versatile, it is necessary to record many relationships between the temperature value and the user's operation contents, or to perform pattern analysis using the relationship between the temperature value and the user's operation contents. In contrast, according to the control unit 20B of the third embodiment, since a dimensionless index ACS based on the change in the indoor temperature relative to the set temperature over the elapsed time is used, the indoor unit 100 can be controlled without being caught up in the absolute value of the temperature. In other words, the dimensionless index ACS can quantitatively evaluate the relative relationship between the current indoor temperature and the set temperature by taking the elapsed time into consideration. The control unit 20B can learn the operation contents of the indoor unit 100 based on the user's operation for each of the initial stage, middle stage, and final stage using the dimensionless index ACS, for example, so that the operation that reflects the user's preference or usage method can be performed even if the user operates the indoor unit only a few times.

[0049] (Fourth embodiment) 14 is a block diagram showing an example of the functions of the control unit 20C in the fourth embodiment. The control unit 20C in the fourth embodiment differs from the above-described embodiments in that it updates information indicating the operation details of the indoor unit 100 based on operation information based on a user's operation and on a dimensionless index ACS calculated by the calculation processing unit 28 when the operation information is received.

[0050] The design information storage unit 30 stores operation information based on a user's operation and a dimensionless index ACS calculated by the calculation processing unit 28 when the operation information is received. n The design information storage unit 30 stores indoor unit operation information for each of the initial stage, middle stage, and final stage. The design information storage unit 30 updates information indicating the indoor unit operation information based on the dimensionless index ACS n The design information storage unit 30 determines whether the stage corresponds to an initial stage, a middle stage, or a final stage. The design information storage unit 30 corrects the indoor unit operation information associated with the stage determined to correspond based on the user's operation. For example, when the direction of the vertical airflow direction flap 5 is changed based on the user's operation, the indoor unit operation information is corrected to the direction of the vertical airflow direction flap 5 after the change.

[0051] Although the embodiments of the present disclosure have been described above in detail with reference to the drawings, the specific configuration is not limited to the above-mentioned embodiments, and includes designs within the scope of the present disclosure. The configurations described in the above-mentioned embodiments can be combined in any manner. For example, the above-mentioned embodiments may be applied to a device or system that stops operation due to an abnormality and detects the abnormality or factor that stops operation. [Explanation of symbols]

[0052] 1...main body case, 1a...intake port, 1b...outlet port, 1c...front airflow path, 1d...rear airflow path, 2...front panel, 3...heat exchanger, 4...blower fan, 5...upper and lower airflow vanes, 6...left and right airflow vanes, 7...indoor temperature sensor, 8...electrical equipment box, 10...external device, 20...control unit, 20A, 20B, 20C...control unit, 22...receiving unit, 24...elapsed time measuring unit, 26...external information storage unit, 28...arithmetic processing unit, 30...design information storage unit, 30A...scene table, 30B...learning information storage unit, 32...judgment processing unit, 34...airflow control unit, 100...indoor unit, 100a...airflow unit

Claims

1. a temperature storage unit that stores the elapsed time during which the air blowing unit that blows air into the room has been operating, the set temperature, and the room temperature in association with each other; a calculation unit that calculates an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the elapsed time, the set temperature, and the indoor temperature stored in the temperature storage unit; A control unit that controls the operation of the air blower unit based on the index calculated by the calculation unit, The calculation unit calculates, as the index, the ratio of the integrated value of the difference between the indoor temperature when the indoor unit starts operating and a function representing the change in indoor temperature during the period when the blower unit is operating, to the product of the set temperature and the elapsed time.

2. an information storage unit that stores information in which each of a plurality of stages divided based on a threshold value is associated with information indicating an operation content of the blower unit; The control unit controls the operation of the blower unit based on a comparison result between the index calculated by the calculation unit and the threshold value. The air conditioning control device according to claim 1 .

3. an information storage unit that stores information in which an operation mode of the air blower, a threshold value, and information indicating an operation content of the air blower are associated with each other; The control unit controls the operation of the air blower based on a comparison result between the threshold value corresponding to the operation mode set based on a user's operation and the index calculated by the calculation unit. The air conditioning control device according to claim 1 .

4. an information storage unit that stores information in which a scene in which the blower unit operates, a threshold value, and information indicating an operation content of the blower unit are associated with each other; a scene setting unit for setting the scene, The air conditioning control device according to claim 1 , wherein the control unit controls the operation of the air blower based on a comparison result between the threshold value corresponding to the scene set by the scene setting unit and the index calculated by the calculation unit.

5. a learning information storage unit configured to store, as learning information, operation information based on a user's operation and the index calculated by the calculation unit when the operation information is received; The control unit controls the operation of the blower based on a comparison result between the index calculated by the calculation unit and the index stored in the learning information storage unit, and based on operation information corresponding to the index stored in the learning information storage unit. The air conditioning control device according to claim 1 .

6. The information storage unit updates the information indicating the operation content of the air blower unit based on operation information based on a user's operation and the index calculated by the calculation unit when the operation information is received. The air conditioning control device according to any one of claims 2 to 4.

7. Operate a blower that blows air into a room; a step of storing, while the blower unit is operating, an elapsed time during which the blower unit has operated, a set temperature, and an indoor temperature in association with each other; calculating an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the stored elapsed time, the set temperature, and the indoor temperature; and controlling the operation of the blower unit based on the calculated index. An air conditioning control method in which the index is calculated as a ratio of the integrated value of the difference between the indoor temperature when the indoor unit starts operating and a function representing the change in indoor temperature during the period when the blower unit is operating, to the product of the set temperature and the elapsed time.

8. On the computer, Operate a blower that blows air into a room; a step of storing, while the blower unit is operating, an elapsed time during which the blower unit has operated, a set temperature, and an indoor temperature in association with each other; calculating an index based on a change in the indoor temperature relative to the set temperature during the elapsed time based on the stored elapsed time, the set temperature, and the indoor temperature; and controlling the operation of the blower unit based on the calculated index. The program calculates the index as a ratio of the integrated value of the difference between the indoor temperature when the indoor unit starts operating and a function representing the change in indoor temperature during the period when the blower unit is operating, to the product of the set temperature and the elapsed time.

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