JP7343049B2 - Air conditioning system and data provision method - Google Patents

Description

The present disclosure relates to an air conditioning system and a data provision method for a computer used in the air conditioning system.

Conventionally, as in Patent Document 1, a management server and an air conditioner (the air conditioner in Patent Document 1 is applicable) are connected so that data can be sent or received, and the time it takes for the indoor temperature to reach a target value. exceeds a threshold time (corresponds to the predetermined time in Patent Document 1), the management server uses mobile information to display display data for displaying information regarding the decrease in the capacity of the air conditioner (maintenance information in Patent Document 1 applies). A data processing system for providing data to a terminal is disclosed.

WO2014/171118 publication

However, Patent Document 1 does not disclose a method for determining the predetermined time. In other words, in Patent Document 1, if the threshold time is not appropriately determined, display data cannot be provided at an appropriate timing. For this reason, there are cases in which information regarding reduced capacity is displayed even though the capacity of the air conditioner has not decreased, or information regarding decreased capacity is not displayed even though the capacity of the air conditioner has decreased. In both cases, there was a problem that the user's convenience deteriorated.

The present disclosure aims to provide an air conditioning system that determines an appropriate threshold time and improves user convenience, and a data provision method for a computer used in the air conditioning system.

The air conditioning system of the present disclosure includes an air conditioner that adjusts the temperature of the air in the air conditioned space to a predetermined set temperature, and a temperature of the air in the air conditioned space before the air conditioner performs conditioning. A temperature acquisition unit that acquires the pre-start temperature and acquires the after-threshold time temperature, which is the temperature of the air in the air conditioning target space at the time when a threshold time has elapsed since the air conditioner started conditioning, and the air conditioner performs conditioning. A timer unit that measures the time from the start until the threshold time elapses, and other air conditioning units set in other air conditioners that condition the air in other air conditioning target spaces that are different from the air conditioning target space. Stores multiple pieces of memory model data indicating the type of device, stores multiple pre-operation temperatures that are the temperature of other air-conditioned spaces before other air conditioners start conditioning, and stores multiple pre-operation temperatures so that other air conditioners can start conditioning. Multiple memory arrival times, which are the time from when the temperature of other air conditioning target spaces reaches the memory setting temperature set in other air conditioners, are stored, and the memory model data and the temperature before the start of operation are stored. A storage unit that stores the memory arrival times in association with each other, and memory arrival times that are associated with the storage temperature before the start of operation that is related to the temperature before the start of operation and the storage model data that is related to the model data that indicates the type of air conditioner. an analysis section that extracts multiple items from the storage section, a calculation section that calculates a threshold time based on the extracted multiple memory arrival times, and a calculation section that calculates whether or not the performance of the air conditioner has decreased based on the temperature after the threshold time and the set temperature. a determination unit that makes a determination; and a notification control unit that performs control to notify a notification unit that the capacity of the air conditioner has decreased when the determination unit determines that the capacity of the air conditioner has decreased. and.

Further, the data provision method of the present disclosure collects data from a plurality of air conditioners via a network, stores the collected data as a past data group, calculates a threshold time using the past data group, and calculates the calculated threshold time. This is a data provision method executed by a computer used in an air conditioning system to determine whether or not the performance of any one of multiple air conditioners has decreased. Stored model data indicating each type of air conditioner, stored pre-operation temperature which is the temperature of the space to be air conditioned before each of the plurality of air conditioners performs conditioning, and temperature before each air conditioner starts conditioning. This is a group of data that is stored in association with the memory reaching temperature, which is the time it takes to reach the reaching judgment temperature set for each air conditioner, and indicates the type of air conditioner from the air conditioner via the network. A first step of acquiring a current operating data group including model data and a pre-operation temperature which is the temperature of the air in the air-conditioned space before the air conditioner performs conditioning, and a memory related to the model data. A second step of extracting a plurality of memory arrival times related to the machine type data and the temperature before the start of operation from the past data group; The method includes a third step of calculating a threshold time, and a fourth step of providing the threshold time calculated in the third step to the air conditioner that acquired the operating data group in the first step.

The air conditioning system and the computer data providing method used in the air conditioning system of the present disclosure can determine an appropriate threshold time, and have the effect of improving user convenience.

1 is a schematic diagram of an air conditioning system according to an embodiment. FIG. 1 is a schematic diagram of an air conditioner according to an embodiment. FIG. 1 is a block diagram showing a hardware configuration of an air conditioning system according to an embodiment. FIG. 1 is a block diagram showing a functional configuration of an air conditioning system according to an embodiment. FIG. 3 is a sequence diagram of operation data accumulation control of the air conditioning system according to the embodiment. It is a flow chart of standby processing of an air conditioner concerning an embodiment. FIG. 3 is a diagram for explaining data accumulated in a server-side storage unit in the air conditioning system according to the embodiment. It is a sequence diagram of operation data analysis control of an air conditioning system concerning an embodiment. It is a flowchart of the performance decline determination process of the air conditioner based on embodiment. The relationship between the indoor air temperature and the elapsed time from the start of operation of the air conditioner when the second determination unit of the air conditioner according to the embodiment determines that the capacity of the air conditioner has not decreased. This is an example of a graph. The relationship between the indoor air temperature and the elapsed time from the start of operation of the air conditioner when the second determination unit of the air conditioner according to the embodiment determines that the capacity of the air conditioner has decreased This is an example of a graph. FIG. 3 is a diagram showing an example of display content displayed on a notification unit of an air conditioner according to an embodiment. It is a schematic diagram of an air conditioning system concerning a modification of an embodiment. It is a figure which shows the example of the display content displayed on the notification device based on the modification of embodiment.

An air conditioning system according to an embodiment of the present disclosure will be described based on the drawings. Note that the present disclosure is not limited to the following embodiments, and may be modified or omitted without departing from the spirit of the present disclosure. In addition, common elements in each figure are given the same reference numerals, and redundant explanations will be omitted.

Embodiment.
FIG. 1 is a schematic diagram of an air conditioning system according to an embodiment. The outline of the air conditioning system will be explained using FIG. 1. The air conditioning system 100 includes a plurality of air conditioners 1 and a server 5. Note that when one device is to be explained separately from a plurality of devices having similar functions, it will be explained with a subscript in lowercase letters. For example, air conditioners 1a to 1d are devices with similar functions, so if they have a common explanation, they will be written as air conditioner 1, and if they are explained separately, they will be written as air conditioner 1a with a subscript. do. Further, in the embodiment, suffixes a to d are used, but the quantity is not limited to this, and the number of air conditioners 1 may be 2 or more. Furthermore, the building 200 and network 300 shown in FIG. 1 are shown for explanation purposes and are not included in the air conditioning system 100.

The air conditioner 1 conditions the air in a room of a building 200. The air conditioner 1 includes an indoor unit 2, an outdoor unit 3, and a remote control 4. The indoor unit 2 and the remote control 4 are installed inside a room of the building 200, and the outdoor unit 3 is installed outside the building 200. Note that in the following description, the inside of the room in the building 200 will be referred to as an indoor room, and the outside of the building 200 will be referred to as an outdoor room. Furthermore, the air in the air conditioning target space that is conditioned by the air conditioner 1 corresponds to indoor air.

Furthermore, the indoor unit 2 and the outdoor unit 3 are connected by wire or wirelessly so that they can send and receive signals to each other. The indoor unit 2 and the remote control 4 are connected by wire or wirelessly so that they can send and receive signals to and from each other. The remote control 4 is connected to a network 300 such as the Internet by wire or wirelessly. Note that in the present disclosure, a signal is data that is converted into data by adding an identifier or the like so that it can be transmitted and received. Therefore, the content included in the signal includes data.

The server 5 stores data included in signals transmitted from the air conditioner 1. The server 5 is connected to the network 300 by wire or wirelessly. That is, the remote controller 4 and the server 5 are connected to each other via the network 300 so that they can send and receive signals.

FIG. 2 is a schematic diagram of an air conditioner according to an embodiment. Next, the air conditioner 1 will be explained using FIG. 2.

The air conditioner 1 includes a compressor 10, an outdoor heat exchanger 11, an expansion valve 12, an indoor heat exchanger 13, a four-way valve 14, a refrigerant pipe 15, an outdoor blower 16, an indoor blower 17, It includes an outdoor temperature sensor 18, an indoor temperature sensor 19, an indoor unit control device 20, an outdoor unit control device 21, a notification terminal 24, and an input terminal 25. Furthermore, the indoor heat exchanger 13 , the indoor blower 17 , the indoor temperature sensor 19 , and the indoor unit control device 20 are provided in the indoor unit 2 . Further, the compressor 10, the outdoor heat exchanger 11, the expansion valve 12, the four-way valve 14, the outdoor blower 16, the outdoor temperature sensor 18, and the outdoor unit control device 21 are provided in the outdoor unit 3. Further, a notification terminal 24 and an input terminal 25 are provided on the remote control 4.

The compressor 10, the outdoor heat exchanger 11, the expansion valve 12, the indoor heat exchanger 13, and the four-way valve 14 are connected by a refrigerant pipe 15, and a refrigerant circuit in which refrigerant circulates is formed in the air conditioner 1. Furthermore, the air conditioner 1 operates in a cooling operation mode in which the air in a room of the building 200 is cooled to a preset temperature in a cooling operation mode, and in a heating operation mode in which the air in the room is cooled to a preset temperature in a heating operation mode. It has two operating modes: a heating mode that heats up to The refrigerant circuit in the cooling operation mode and the refrigerant circuit in the heating operation mode are different from each other.

As the refrigerant that circulates in the refrigerant circuit, a refrigerant that evaporates or condenses in the outdoor heat exchanger 11 and the indoor heat exchanger 13 is used.

The compressor 10 compresses the refrigerant sucked in through the suction port, converts it into a high-temperature, high-pressure gas state, and discharges it from the discharge port. The compressor 10 may be configured with, for example, an inverter compressor whose capacity can be controlled.

A flow path through which a refrigerant flows is formed inside the outdoor heat exchanger 11 . The outdoor heat exchanger 11 performs heat exchange between the refrigerant flowing in the flow path and outdoor air.

The expansion valve 12 reduces the pressure of the refrigerant passing therethrough. The expansion valve 12 may be configured with an electronic expansion valve or the like that can arbitrarily adjust the flow rate of the refrigerant.

The indoor heat exchanger 13 has a flow path formed therein through which a refrigerant flows. The indoor heat exchanger 13 performs heat exchange between the refrigerant flowing in the flow path and the indoor air.

The four-way valve 14 switches between the refrigerant circuit in the cooling operation mode and the refrigerant circuit in the heating operation mode. The four-way valve 14 has four ports: a port, b port, c port, and d port.

Refrigerant piping 15 connects compressor 10 , outdoor heat exchanger 11 , expansion valve 12 , indoor heat exchanger 13 , and four-way valve 14 . Specifically, the refrigerant pipe 15 connects the discharge port of the compressor 10 and the a port of the four-way valve 14. The refrigerant pipe 15 connects the b port of the four-way valve 14 and one end of the flow path of the outdoor heat exchanger 11. Refrigerant piping 15 connects the other end of the flow path of outdoor heat exchanger 11 and expansion valve 12 . Refrigerant piping 15 connects expansion valve 12 and one end of the flow path of indoor heat exchanger 13 . The refrigerant pipe 15 connects the other end of the flow path of the indoor heat exchanger 13 and the c port of the four-way valve 14 . The refrigerant pipe 15 connects the d port of the four-way valve 14 and the suction port of the compressor 10.

The outdoor blower 16 generates an air flow and blows outdoor air to the outdoor heat exchanger 11. The outdoor blower 16 may be composed of, for example, a fan that rotates to generate airflow and a motor that rotates the fan.

The indoor blower 17 generates an air flow and blows indoor air to the indoor heat exchanger 13. The indoor blower 17 is preferably composed of a fan and a motor similarly to the outdoor blower 16.

The outdoor temperature sensor 18 measures the temperature of outdoor air. The outdoor temperature sensor 18 is provided in the middle of the air flow generated by the outdoor blower 16, and is located upstream of the outdoor heat exchanger 11. That is, the outdoor temperature sensor 18 measures the temperature of the outdoor air blown to the outdoor heat exchanger 11.

The indoor temperature sensor 19 measures the temperature of indoor air. The indoor temperature sensor 19 is provided in the middle of the airflow generated by the indoor blower 17 and is located upstream of the indoor heat exchanger 13. That is, the indoor temperature sensor 19 measures the temperature of the indoor air blown to the indoor heat exchanger 13.

The indoor unit control device 20 controls each component provided in the indoor unit 2 or acquires data measured by each component. Specifically, the indoor unit control device 20 controls the amount and direction of air blown by the indoor blower 17, and acquires the temperature of the indoor air measured by the indoor temperature sensor 19.

The outdoor unit control device 21 controls each component provided in the outdoor unit 3 or acquires data measured by each component. Specifically, the outdoor unit control device 21 controls the rotation speed of the compressor 10, the opening degree of the expansion valve 12, the flow path of the four-way valve 14, and the air flow rate of the outdoor blower 16, and the outdoor temperature sensor 18 controls the air flow rate. Obtain the temperature of the outdoor air.

The indoor unit control device 20 and the remote controller 4 are connected via a first signal line 22 so that data can be transmitted or received. Further, the indoor unit control device 20 and the outdoor unit control device 21 are connected via a second signal line 23 so that data can be transmitted or received. That is, the outdoor unit control device 21 and the remote controller 4 are also connected so that data can be transmitted or received.

The notification terminal 24 notifies the user who operates the air conditioner 1 of data in writing or voice. The data notified by the notification device 24 include, for example, data related to the operating status of the air conditioner 1 or data related to the temperature setting set in the air conditioner 1. Further, for example, a liquid crystal display or a speaker is used for the notification terminal 24, and in the embodiment, a case where a display is used for the notification terminal 24 will be described.

The input terminal 25 is used for inputting operations by the user. User operations input from the input terminal include selecting whether the air conditioner operates in cooling operation mode or heating operation mode, changing the set temperature, and the like. Moreover, a switch such as a push button is used for the input terminal 25, for example. Furthermore, the notification terminal 24 and the input terminal 25 may be integrated and a touch panel may be used for the notification terminal 24 and the input terminal 25.

Next, a refrigerant circuit formed in the air conditioner 1 will be explained. First, the refrigerant circuit in the cooling operation mode will be explained. In the refrigerant circuit in the cooling operation mode, the four-way valve 14 connects the a port and the b port, and the c port and the d port, as shown by the solid line in FIG. The refrigerant discharged from the compressor 10 flows into the outdoor heat exchanger 11. The refrigerant that has flowed into the outdoor heat exchanger 11 flows through a flow path formed inside the outdoor heat exchanger 11 and heats the outdoor air blown from the outdoor blower 16 . That is, in the refrigerant circuit in the cooling operation mode, the outdoor heat exchanger 11 functions as a condenser. The refrigerant that heated the outdoor air flows out of the outdoor heat exchanger 11, flows into the expansion valve 12, and is depressurized. The refrigerant whose pressure has been reduced by the expansion valve 12 flows into the indoor heat exchanger 13 . The refrigerant that has entered the indoor heat exchanger 13 flows through a flow path formed inside the indoor heat exchanger 13 and cools the indoor refrigerant blown from the indoor blower 17 . That is, in the refrigerant circuit in the cooling operation mode, the indoor heat exchanger 13 functions as an evaporator. The refrigerant that has cooled the indoor air flows out of the indoor heat exchanger 13, is sucked into the compressor 10, is compressed, and is then discharged again.

Next, the refrigerant circuit in the heating operation mode will be explained. In the refrigerant circuit in the heating operation mode, the four-way valve 14 connects the a port and the c port, and the b port and the d port, as shown by the broken line in FIG. The refrigerant discharged from the compressor 10 flows into the indoor heat exchanger 13. The refrigerant that has flowed into the indoor heat exchanger 13 flows through a flow path formed inside the indoor heat exchanger 13 and heats the indoor air blown from the indoor blower 17 . That is, in the refrigerant circuit during the heating operation mode, the indoor heat exchanger 13 functions as a condenser. The refrigerant that heated the indoor air flows out of the indoor heat exchanger 13, flows into the expansion valve 12, and is depressurized. The refrigerant whose pressure has been reduced by the expansion valve 12 flows into the outdoor heat exchanger 11 . The refrigerant that has entered the outdoor heat exchanger 11 flows through a flow path formed inside the outdoor heat exchanger 11 and cools the indoor refrigerant blown from the outdoor blower 16 . That is, in the refrigerant circuit during the heating operation mode, the outdoor heat exchanger 11 functions as an evaporator. The refrigerant that has cooled the outdoor air flows out of the outdoor heat exchanger 11, is sucked into the compressor 10, is compressed, and is then discharged again.

FIG. 3 is a block diagram showing the hardware configuration of the air conditioning system according to the embodiment. Next, the hardware configuration of the air conditioning system 100 will be described using FIG. 3.

The remote control 4 includes a notification terminal 24, an input terminal 25, a processor 26, a memory 27, a hardware interface 28, and a timer 29. Further, each piece of hardware included in the remote control 4 is connected to enable transmission or reception of data. Note that the notification terminal 24 and the input terminal 25 have been described above, so their explanation will be omitted.

The processor 26 controls or processes the hardware included in the remote controller 4 by executing a program stored in the memory 27. For example, the processor 26 changes the content that the notification terminal 24 broadcasts.

The memory 27 stores programs executed by the processor 26 and data necessary for executing the programs. Furthermore, the memory 27 is used as a work area for the processor 26. For example, the memory 27 stores the set temperature.

The hardware interface 28 transmits or receives signals with other hardware interfaces wirelessly or by wire.

The timer 29 measures the elapsed time from the start of measurement .

The indoor unit 2 includes an indoor blower 17, an indoor temperature sensor 19, a processor 30, a memory 31, and a hardware interface 32. Furthermore, each piece of hardware included in the indoor unit 2 is connected to enable transmission or reception of data. Note that the indoor blower 17 and the indoor temperature sensor 19 have been described above, so a description thereof will be omitted. Further, since the hardware interface 32 is similar to the hardware interface 28, the description thereof will be omitted.

The processor 30 controls or processes the hardware included in the indoor unit 2 by executing a program stored in the memory 31. For example, the processor 30 changes the amount of air blown by the indoor blower 17.

The memory 31 stores programs executed by the processor 30 and data necessary for executing the programs. Further, the memory 31 is used as a work area for the processor 30. For example, the memory 31 stores the indoor temperature measured by the indoor temperature sensor 19.

The outdoor unit 3 includes a compressor 10, an expansion valve 12, a four-way valve 14, an outdoor blower 16, an outdoor temperature sensor 18, a processor 33, a memory 34, and a hardware interface 35. Furthermore, each piece of hardware included in the outdoor unit 3 is connected to enable transmission or reception of data. Note that the compressor 10, the expansion valve 12, the four-way valve 14, the outdoor blower 16, and the outdoor temperature sensor 18 have been described above, so a description thereof will be omitted. Further, since the hardware interface 35 is the same as the hardware interface 28, a description thereof will be omitted.

The processor 33 controls or processes the hardware included in the outdoor unit 3 by executing a program stored in the memory 34 . For example, the processor 33 changes the rotation speed of the compressor 10.

The memory 34 stores programs executed by the processor 33 and data necessary for executing the programs. Further, the memory 34 is used as a work area for the processor 33. For example, the memory 34 stores the outdoor temperature measured by the outdoor temperature sensor 18.

The server 5 includes a processor 51, a memory 52, and a hardware interface 53. Note that the hardware interface 53 is the same as the hardware interface 28, so a description thereof will be omitted.

The processor 51 executes processing by executing a program stored in the memory 52. The processing performed by the processor 51 will be described later.

The memory 52 stores programs executed by the processor 51 and data necessary for executing the programs. Furthermore, the memory 52 is used as a work area for the processor 51. The data stored in the memory 52 will be described later.

The processors 26, 30, 33, and 51 are, for example, CPUs (Central Processing Units). The memories 27, 31, 34, and 52 are, for example, volatile memories such as RAM (Random Access Memory), non-volatile memories such as ROM (Read Only Memory), or both volatile memories and non-volatile memories. The hardware interfaces 28, 32, 35 and 53 are, for example, wireless communication interfaces or wired communication interfaces.

FIG. 4 is a block diagram showing the functional configuration of the air conditioning system according to the embodiment. Next, the functional configuration of the air conditioning system 100 will be explained using FIG. 4.

The air conditioner 1 includes a timer section 36, a temperature acquisition section 37, an air conditioner side storage section 38, an input section 39, a first judgment section 40, a command section 41, an air conditioning section 42, It includes a data generation section 43, an air conditioner side transmission section 44, an air conditioner side reception section 45, a second judgment section 46, a notification control section 47, and a notification section 48.

The timer unit 36 measures the elapsed time from the start of measurement .

The temperature acquisition unit 37 acquires the temperature of the indoor air and the temperature of the outdoor air that the air conditioner 1 conditions.

The air conditioner side storage unit 38 stores various data used for processing in the first determination unit 40 , command unit 41 , data generation unit 43 , second determination unit 46 , or notification control unit 47 . Various data include, for example, set temperature. Further, in the embodiment, model data indicating the type of the air conditioner 1 such as the model number is stored in the air conditioner side storage unit 38 when the air conditioner 1 is manufactured, and the air conditioner 1 is installed in the building 200. It is assumed that the installation date, which is the date when the air conditioner side 1 was installed, is stored at the time of installation.

The input unit 39 receives data related to operations from the user. The user can perform operations such as changing the set temperature using the input unit 39.

The first determination unit 40 makes a determination based on the elapsed time measured by the timer unit 36, the temperature acquired by the temperature acquisition unit 37, and the data stored in the air conditioner side storage unit 38. The detailed content of the judgment made by the first judgment unit 40 will be described later.

The command unit 41 generates a command signal to be transmitted to the air conditioning unit 42 based on the temperature acquired by the temperature acquisition unit 37 and the data stored in the air conditioner side storage unit 38. An example of the command signal is a signal for changing the rotation speed of the compressor 10 to a predetermined rotation speed.

The air conditioner 42 conditions the indoor air.

The data generation section 43 generates data to be transmitted to the server 5 based on the judgment content of the first judgment section 40 and the data stored in the air conditioner side storage section 38.

The air conditioner side transmitter 44 converts the data generated by the data generator 43 into a signal and transmits the signal to the server 5 .

The air conditioner side receiving section 45 receives a signal from the server 5 and converts the received signal into a format that can be processed by the second determining section 46 .

The second determination unit 46 uses the elapsed time measured by the timer unit 36, the temperature acquired by the temperature acquisition unit 37, the data stored in the air conditioner side storage unit 38, and the signal received by the air conditioner side reception unit 45. Make decisions based on the data contained. The detailed content of the judgment made by the second judgment unit 46 will be described later.

The notification control section 47 controls the notification section 48 based on the content of the judgment made by the second judgment section 46 . Further, the notification control unit 47 generates data to be notified by the notification unit 48.

The notification unit 48 notifies the user of information based on the data generated by the notification control unit 47.

The first judgment section 40, the command section 41, the data generation section 43, the second judgment section 46, and the notification control section 47 are operated by the processor 26, 30, or 33 according to a program stored in the memory 27, 31, or 34, respectively. This is achieved by executing the process. Further, the timer section 36 is realized by a timer 29. Further, the temperature acquisition section 37 is realized by an outdoor temperature sensor 18 and an indoor temperature sensor 19. Further, the input unit 39 is realized by the input terminal 25. Further, the air conditioning section 42 is realized by the compressor 10, the expansion valve 12, the four-way valve 14, the indoor blower 17, and the outdoor blower 16. Further, the air conditioner side transmitting section 44 and the air conditioner side receiving section 45 are each realized by the hardware interface 28. Further, the notification unit 48 is realized by the notification terminal 24.

The server 5 includes a server-side reception section 54, a server-side storage section 55, an analysis section 56, a calculation section 57, and a server-side transmission section 58.

The server-side receiving unit 54 receives a signal from the air conditioner 1 and converts the received signal into a format that can be stored in the server-side storage unit 55 and a format that can be processed by the analysis unit 56.

The server-side storage unit 55 stores data used in processing by the analysis unit 56. Details of the data stored in the server-side storage unit 55 will be described later.

The analysis unit 56 performs processing based on the data included in the signal received by the server-side reception unit 54 and the data stored in the server-side storage unit 55. The details of the processing performed by the analysis unit 56 will be described later.

The calculation unit 57 performs calculations based on the results of the processing performed by the analysis unit 56. The details of the calculations performed by the calculation unit 57 will be described later.

The server-side transmitting unit 58 converts the data of the calculation result of the calculating unit 57 into a signal, and transmits the signal to the air conditioner 1 .

The server-side receiving section 54 and the server-side transmitting section 58 are each realized by a hardware interface 53. The server side storage unit 55 is realized by the memory 52. The analysis section 56 and the calculation section 57 are realized by the processor 51 executing processing according to a program stored in the memory 52.

Next, the control details of the air conditioning system 1 will be explained. The air conditioning system 1 performs operation data accumulation control and operation data analysis control.

FIG. 5 is a sequence diagram of operation data accumulation control of the air conditioning system according to the embodiment. Next, operation data accumulation control of the air conditioning system 100 will be explained using FIG. In the operation data accumulation control, the server 5 collects operation data of each of the air conditioners 1a to 1d, and stores the collected operation data in the server-side storage section 55. In addition, the operation data accumulation control starts the operation of the air conditioner 1 when the user inputs an operation to operate the air conditioner 1 into the input unit 39 or when the time reaches a preset operation start time. is executed when When the operation data accumulation control is executed, the air conditioner side storage unit 38 also stores the set temperature Ts and a mode indicating whether the air conditioner 1 operates in the cooling operation mode or the heating operation mode. data is stored.

When the air conditioning system 100 starts the operation data accumulation control, the air conditioner 1 first performs the process of step S101. In step S101, the temperature acquisition unit 37 acquires the pre-operation indoor temperature Trb, which is the temperature of the indoor air before the air conditioner 1 starts operating, and the outdoor temperature To, which is the temperature of the outdoor air. In the embodiment, the temperature measured by the indoor temperature sensor 19 at the time of step S101 is set as the pre-operation indoor temperature Trb, and the temperature measured by the outdoor temperature sensor 18 is set as the outdoor temperature To.

After completing the process in step S101, the air conditioner 1 performs the process in step S102. In step S102, the air conditioner side storage unit 38 stores the pre-operation indoor temperature Trb and outdoor temperature To acquired in step S101.

After completing the process in step S102, the air conditioner 1 performs the process in step S103. In step S103, the command unit 41 transmits a command signal to start the operation of the air conditioner 1 to the air conditioner 42, and starts the operation of the air conditioner 1. In the embodiment, the command unit 41 sends a command signal to change the four-way valve 14 to a flow path corresponding to the operation stored in the mode data, a command signal to set the opening degree of the expansion valve 12 to a predetermined opening degree, A command signal to start operating the compressor 10, a command signal to start operating the indoor blower 16, and a command signal to start operating the outdoor blower 16 are transmitted to the air conditioner 42. The air conditioner 42 that has received the various command signals starts operating, and the air conditioner 1 starts conditioning the indoor air.

After completing the process in step S103, the air conditioner 1 performs the process in step S104. In step S104, the air conditioner 1 performs a standby process. The standby process is a process in which the air conditioner 1 waits after starting indoor air conditioning until the temperature of the indoor air reaches an attainment determination temperature Tac, which will be described later.

FIG. 6 is a flowchart of standby processing of the air conditioner according to the embodiment. Here, details of the standby process will be explained using FIG. 6.

When the standby process is started, the air conditioner 1 performs the process of step S201. In step S201, the timer unit 36 starts measuring the arrival time tach. Note that when the timer section 36 starts measuring the arrival time tach, the timer section 36 resets the arrival time tach and measures the time from 0.

After completing the process in step S201, the air conditioner 1 performs the process in step S202. In step S202, the temperature acquisition unit 37 acquires the room temperature Trs during standby. The indoor temperature Trs during standby is the temperature of the indoor air during standby processing. In the embodiment, the temperature measured by the indoor temperature sensor 19 at the time of step S202 is set as the standby indoor temperature Trs.

After completing the process in step S202, the air conditioner 1 performs the process in step S203. In step S203, the first determination unit 40 determines whether the air conditioner 1 is operating in the cooling operation mode. In the embodiment, the first determination unit 40 acquires the mode data stored in the air conditioner side storage unit 38, and if the mode data is data indicating that the operation is performed in the cooling operation mode, the first determination unit 40 If it is determined that the air conditioner 1 is operating in the cooling operation mode, and the mode data is data indicating that the air conditioner 1 is operating in the heating operation mode, it is determined that the air conditioner 1 is operating in the heating operation mode. to decide.

In the process of step S203, if the first determination unit 40 determines that the air conditioner 1 is operating in the cooling operation mode (step S203, YES), the air conditioner 1 performs the process of step S204. conduct. In step S204, the first determination unit 40 determines whether the standby indoor temperature Trs acquired in step S202 is equal to or lower than the attainment determination temperature Tac in the cooling operation mode. That is, in step S204, the first determination unit 40 determines whether the condition Trs≦Tac is satisfied. Note that the attainment determination temperature Tac in the cooling operation mode is a value obtained by adding an allowable difference temperature ΔTs, which is preset to a value of 0 or more, to the set temperature Ts. Since the set temperature Ts and the allowable difference temperature ΔTs are predetermined values, the attainment determination temperature Tac in the cooling operation mode is also a predetermined value.

In the process of step S204, if the first determination unit 40 determines that the standby indoor temperature Trs is equal to or lower than the attainment determination temperature Tac (step S204, YES), the air conditioner 1 performs the process of step S205. . In step S205, the timer section 36 finishes measuring the arrival time tach. In other words, the arrival time tach measures the time from starting the process in step S201 to starting the process in step S205. In other words, when the air conditioner 1 is operating in the cooling operation mode, the arrival time tach is the time when the indoor air temperature is equal to or lower than the attainment determination temperature Tac after the air conditioner 1 starts operating in the cooling operation mode. We are measuring the time it takes to reach

After completing the process in step S205, the air conditioner 1 performs the process in step S206. In step S206, the air conditioner side storage unit 38 stores the arrival time tach for which the measurement was completed in step S205.

After completing the process in step S206, the air conditioner 1 ends the standby process.

In the process of step S204, if the first determination unit 40 determines that the standby indoor temperature Trs is higher than the attainment determination temperature Tac (step S204, NO), the air conditioner 1 returns to the process of step S202, The temperature acquisition unit 37 acquires the room temperature Trs during standby.

In the process of step S203, if the first determination unit 40 determines that the air conditioner 1 is not operating in the cooling operation mode (step S203, NO), the air conditioner 1 executes the process of step S207. conduct. In step S207, the first determination unit 40 determines whether the standby indoor temperature Trs acquired in step S202 is equal to or higher than the attainment determination temperature Tah in the heating operation mode. That is, in step S207, the first determination unit 40 determines whether the condition Trs≧Tah is satisfied. Note that the attainment determination temperature Tah in the heating operation mode is a value obtained by subtracting the allowable difference temperature ΔTs, which is preset to a value of 0 or more, from the set temperature Ts. Since the set temperature Ts and the allowable difference temperature ΔTs are predetermined values, the attainment determination temperature Tah in the heating operation mode is also a predetermined value.

In the process of step S207, if the first determination unit 40 determines that the standby indoor temperature Trs is equal to or higher than the attainment determination temperature Tah (step S207, YES), the air conditioner 1 performs the process of step S205. , ends the measurement of the arrival time tach. In other words, when the air conditioner 1 is operating in the heating operation mode, the arrival time tach is the time from when the air conditioner 1 starts operating in the heating operation mode until the indoor air temperature reaches or exceeds the attainment determination temperature Tah. We are measuring the time it takes. After completing the process in step S205, the air conditioner 1 performs the process in step S206, and the air conditioner side storage unit 38 stores the arrival time tach. After completing the process in step S206, the air conditioner 1 ends the standby process.

In the process of step S207, if the first determination unit 40 determines that the standby indoor temperature Trs is lower than the attainment determination temperature Tah (step S207, NO), the air conditioner 1 returns to the process of step S202, The temperature acquisition unit 37 acquires the room temperature Trs during standby.

The operation data accumulation control after the standby process in step S104 is finished will be explained using FIG. 5. After completing the process in step S104, the air conditioner 1 performs the process in step S105. In step S105, the data generation unit 43 generates an operation data group and an arrival time data group. The operation data group is a data group indicating under what conditions the air conditioner 1 is operating, and is composed of a plurality of pieces of data. The operation data group includes at least the room temperature Trb before the start of operation and model data. Further, in the embodiment, the operation data group includes, in addition to the pre-operation indoor temperature Trb and model data, the outdoor temperature To, the set temperature Ts, and the installation date. The arrival time data group is a data group related to the time from the start of operation of the air conditioner 1 until the arrival determination temperature is reached, and is composed of a single piece of data or a plurality of pieces of data. The arrival time data group includes at least the arrival time tach. In the embodiment, the arrival time data group includes only the arrival time tach. In addition, in the following explanation, when both the operation data group and the arrival data group are referred to, they will simply be referred to as the data group.

After completing the process in step S105, the air conditioner 1 performs the process in step S106. In step S106, the air conditioner side transmitter 44 converts the data group generated in step S105 into a signal, and transmits the converted signal to the server 5. Here, the signal transmitted from the air conditioner 1 in step S106 is referred to as an accumulation sending signal.

After completing the process in step S106, the server 5 performs the process in step S107. In step S107, the server-side receiving unit 54 receives the accumulation sending signal transmitted from the air conditioner 1 in step S106. Further, in step S107, the server-side receiving unit 54 converts the accumulation sending signal into a format in which the server-side storage unit 55 can store the data group.

After completing the process in step S107, the server 5 performs the process in step S108. In step S108, the server-side storage unit 55 associates and stores the data included in the data group. That is, in step S108, the server-side storage unit 55 stores at least the pre-operation room temperature Trb, the model data, and the arrival time tach in association with each other. In the embodiment, the server-side storage unit 55 stores the pre-operation indoor temperature Trb, set temperature Ts, arrival time tach, outdoor temperature To, model data, and installation date in association with each other. Furthermore, in the following description, the driving data group and the arrival time data group stored in the server-side storage unit 55 will be referred to as a stored driving data group and a stored reaching time data group, respectively. Furthermore, when referring to both the memorized operation data group and the memorized arrival time data group, they are referred to as a memorized data group. Furthermore, the indoor temperature before the start of operation Trb, the set temperature Ts, the outdoor temperature To, the model data, the installation date, and the arrival time are stored in the server side storage unit 55, respectively. , storage model data, storage installation date, and storage arrival time, respectively.

FIG. 7 is a diagram for explaining data accumulated in the server-side storage unit in the air conditioning system according to the embodiment. As shown in FIG. 7, the server side storage unit 55 uses the same ID (Identification) for the pre-operation indoor temperature Trb, set temperature Ts, arrival time tach, outdoor temperature To, model data, and installation date included in the same accumulation sending signal. It is associated and stored by adding . For example, the storage model data of MSZ-AXXX with ID 0001, the storage installation date of February 14, 2010, the storage room temperature before air conditioning of 28.0℃, and the storage of 30.0℃. The outdoor temperature, the memory setting temperature of 24.0° C., and the memory arrival time of 730 seconds are data that were originally included in the same storage and sending signal.

Operation data accumulation control after the process of step S108 is completed will be explained using FIG. 5. After completing the process in step S108, the server 5 performs the process in step S109. In step S109, the server-side transmitter 58 transmits an accumulation return signal to the air conditioner 1 that has transmitted the accumulation sending signal. The accumulation return signal includes data that notifies that the server-side storage unit 55 has stored the data included in the driving data group and the arrival time data group.

After completing the process in step S109, the server 5 ends the operation data accumulation control. Furthermore, after completing the process in step S109, the air conditioner 1 performs the process in step S110. In step S110, the air conditioner side receiving unit 45 receives the accumulation return signal transmitted from the server 5 in step S109. After completing the process in step S110, the air conditioner 1 ends the operation data accumulation control.

The air conditioning system 100 performs operation data accumulation control. As a result, the server 5 accumulates data included in the operation data group and arrival time data group generated by the air conditioner 1 that is connected to the server 5 so as to be able to transmit or receive data. For example, in FIG. 1, the server 5 accumulates data included in the operation data group and arrival time data group generated by the four air conditioners 1a to 1d.

In addition, if the set temperature Ts is changed while the air conditioning system 100 is performing the processing from step S101 to step S105 of the operation data accumulation control, the air conditioning system 100 performs the process before the set temperature Ts is changed. The current operation data accumulation control is ended and a new operation data accumulation control is started.

FIG. 8 is a sequence diagram of operation data analysis control of the air conditioning system according to the embodiment. Next, operation data analysis control of the air conditioning system 100 will be explained using FIG. In the operation data analysis control, an analysis is performed based on the operation data group of the air conditioner 1 at the time of the operation data analysis control and the memory data group stored in the server 5, and it is determined whether the performance of the air conditioner 1 has decreased. This is a control that determines whether In addition, the operation data analysis control starts the operation of the air conditioner 1 when the user inputs an operation to operate the air conditioner 1 into the input unit 39 or when the time reaches a preset operation start time. is executed when That is, in the embodiment, the driving data analysis control is started at the same timing as the driving data accumulation control. In addition, when the operation data analysis control is executed, the air conditioner side storage unit 38 stores the set temperature Ts and determines whether the air conditioner 1 operates in the cooling operation mode or the heating operation mode. Mode data and analysis correction value Td are stored. The analysis correction value Td is a value used in determining whether the performance of the air conditioner 1 has decreased in the operation data analysis control, and is preset to an arbitrary value of 0 or more.

When the air conditioning system 100 starts operating data analysis control, the air conditioner 1 first performs the process of step S301. In step S301, similarly to step S101, the temperature acquisition unit 37 obtains the pre-operation indoor temperature Trb, which is the temperature of the indoor air before the air conditioner 1 starts operating, and the outdoor temperature To, which is the temperature of the outdoor air. get. Note that the process in step S301 is similar to the process in step S101 described above, and the driving data analysis control and the driving data accumulation control are started at the same timing, so step S101 and step S301 are combined into the same process. It's good as well.

After completing the process in step S301, the air conditioner 1 performs the process in step S302. In step S302, similarly to step S102, the air conditioner side storage unit 38 stores the pre-operation indoor temperature Trb and outdoor temperature To acquired in step S301. For the same reason as step S301, step S102 and step S302 may be one and the same process.

After completing the process in step S302, the air conditioner 1 performs the process in step S303. In step S303, the data generation unit 43 generates a group of driving data. The driving data group generated in step S303 is the same as the driving data group explained in the process of step S105. In addition, when the process of step S105 is performed before the process of step S303, the operation data group generated in step S105 is not generated in step S303 and is used as the operation data group in the operation data analysis control. You may use it. Further, if the process of step S303 is performed before the process of step S105, the operation data group generated in step S303 is used as the operation data group in the operation data accumulation control without generating the operation data group in step S105. You may use it.

After completing the process in step S303, the air conditioner 1 performs the process in step S304. In step S304, the air conditioner side transmitter 44 converts the operation data group generated in step S303 into a signal, and transmits the converted signal to the server 5. Here, the signal transmitted from the air conditioner 1 in step S304 is referred to as an analysis sending signal.

After completing the process in step S304, the air conditioner 1 performs the process in step S305. In step S305, similarly to step S103, the command unit 41 transmits a command signal to start the operation of the air conditioner 1 to the air conditioner 42, and starts the operation of the air conditioner 1. In addition, when the process of step S103 has already been performed and the air conditioner 1 is operating at the time of starting the process of step S305, step S305 is omitted, and the process of step S305 is treated as having ended.

After completing the process in step S304, the server 5 performs the process in step S306. In step S306, the server-side receiving unit 54 receives the analysis sending signal sent from the air conditioner 1 in step S304. Further, in step S306, the server-side reception unit 54 converts the analysis sending signal into a format that allows the analysis unit 56 to acquire data of the operation data group.

After completing the process in step S306, the server 5 performs the process in step S307. In step S307, the analysis unit 56 extracts from the server-side storage unit 55 the memory arrival time associated with the stored driving data group related to the data of the driving data group included in the analysis sending signal. In the embodiment, the pre-operation indoor temperature Trb, set temperature Ts, outdoor temperature To, model data, and installation date included in the analysis sending signal are stored, respectively. Extract the storage arrival time associated with the storage model data and storage installation date. More specifically, the associated indoor temperature before the start of storage operation, storage set temperature Ts, outside temperature To, and storage model data are determined in step S306 as the indoor temperature before the start of operation Trb and the set temperature included in the analysis sending signal. A memory arrival time that matches Ts, outdoor temperature To, and model data, and whose associated memory installation date is later than the installation date included in the analysis sending signal is extracted.

The process of step S307 will be explained in detail using FIG. 7. For example, in the operation data group data included in the analysis sending signal received in step S306, the model data is MSZ-AXXX, the installation date is January 30, 2010, and the room temperature Trb before air conditioning is 28. 0°C, outdoor temperature To is 30.0°C, and set temperature Ts is 24.0°C. In this case, the memory arrival times extracted in the process of step S307 are 730 seconds with ID0001, 710 seconds with ID0007, and 720 seconds with ID0008. Note that for ID0002, the stored model data is different from the model data included in the analysis sending signal, for ID0003, the storage room outdoor temperature is different from the outdoor temperature To included in the analysis sending signal, and for ID0004, the stored pre-air conditioning indoor temperature is is different from the pre-air conditioning room temperature Trb included in the analysis sending signal, and for ID0005, the memory setting temperature is different from the setting temperature Ts included in the analysis sending signal, so for ID0006, the storage installation date is included in the analysis sending signal. Since it is before the installation date, the arrival time tach to which each ID is attached is not extracted.

The operation data analysis control after the process of step S307 is finished will be explained using FIG. 8. After completing the process in step S307, the server performs the process in step S308. In step S308, the calculation unit 57 calculates the threshold time tt based on the memory arrival time extracted in step S307. Examples of methods for calculating the threshold time tt based on the memory arrival time include a method in which the average value of the memory arrival times extracted in step S307 is used as the threshold time tt, and a method in which the indoor space is large at the memory arrival time extracted in step S307. A method in which the threshold time tt is set to a weighted average value that takes into account the size of the indoor space with a larger weight to be applied, a method in which the median value of the memory arrival times extracted in step S307 is set as the threshold time tt, or a method extracted in step S307. For example, a method may be used in which the mode of the memory arrival time is set as the threshold time tt. In the embodiment, the average value of the memory arrival times extracted in step S307 is set as the threshold time tt.

A specific example of the process in step S308 will be explained. For example, assume that the storage arrival times extracted in step S307 are 730 sec, 710 sec, and 720 sec. In this case, in the embodiment, the average value of the memory arrival times extracted in step S307 is set as the threshold time tt, so the threshold time tt is 720 seconds.

After completing the process in step S308, the server 5 performs the process in step S309. In step S309, the server-side transmitter 58 transmits an analysis return signal to the air conditioner 1 that sent the analysis send signal. The analysis return signal includes the threshold time tt derived in step S308. That is, in step S309, the server 5 provides the air conditioner 1 with the threshold time tt.

After completing the process in step S309, the server 5 ends the operation data analysis control. Furthermore, after completing the processes in step S305 and step S309, the air conditioner 1 performs the process in step S310. In step S310, the air conditioner side receiving unit 45 receives the analysis return signal transmitted from the server 5 in step S309. Further, in step S310, the air conditioner side receiving unit 45 converts the analysis return signal into a format that allows the second determining unit 46 to obtain the threshold time tt.

After completing the process in step S310, the air conditioner 1 performs the process in step S311. In step S311, the air conditioner 1 performs a performance reduction determination process. The performance reduction determination process is a process for determining whether the performance of the air conditioner 1 has decreased.

FIG. 9 is a flowchart of the performance reduction determination process of the air conditioner according to the embodiment. Here, details of the performance reduction determination process will be described using FIG. 9.

When the capacity reduction determination process is started, the air conditioner 1 performs the process of step S401. In step S401, the timer section 36 starts measuring the elapsed time t. Note that when the timer section 36 starts measuring the elapsed time t, the timer section 36 resets the elapsed time t and measures the time from 0.

After completing the process in step S401, the air conditioner 1 performs the process in step S402. In step S402, the second determination unit 46 determines whether the elapsed time t has exceeded the threshold time tt included in the analysis return signal received in step S310. That is, in step S402, the second determination unit 46 determines whether the condition t≧tt is satisfied.

In the process of step S402, if the second determination unit 46 determines that the elapsed time t has not passed the threshold time tt (step S402, NO), the air conditioner 1 performs the process of step S402 again. .

In the process of step S402, when the second determination unit 46 determines that the elapsed time t has passed the threshold time tt (step S402, YES), the air conditioner 1 performs the process of step S403. In step S403, the temperature acquisition unit 37 acquires the after-threshold time indoor temperature Tra, which is the temperature of the indoor air after the threshold time tt has elapsed. In the embodiment, the temperature measured by the indoor temperature sensor 19 at the time of step S403 is set as the indoor temperature Tra after a threshold time.

After completing the process in step S403, the air conditioner 1 performs the process in step S404. In step S404, the second determination unit 46 determines whether the air conditioner 1 is operating in the cooling operation mode. In the embodiment, the second determination unit 46 acquires the mode data stored in the air conditioner side storage unit 38 similarly to step S203, and determines whether the mode data is data indicating that the operation is to be performed in the cooling operation mode. If so, it is determined that the air conditioner 1 is operating in the cooling operation mode, and if the mode data is data indicating that the air conditioner 1 is operating in the heating operation mode, the air conditioner 1 is determined to be operating in the heating operation mode. It is determined that the

In the process of step S404, if the second determination unit 46 determines that the air conditioner 1 is operating in the cooling operation mode (step S404, YES), the air conditioner 1 performs the process of step S405. conduct. In step S405, the second determination unit 46 determines whether the performance of the air conditioner 1 has decreased based on the indoor temperature Tra after the threshold time, the set temperature Ts, and the analysis correction value Td acquired in step S403. In the embodiment, in step S405, the second determination unit 46 determines whether the indoor temperature Tra after a threshold time is greater than the sum of the set temperature Ts and the analysis correction value Td. That is, in step S405, the second determination unit 46 determines whether the condition of Tra>Ts+Td is satisfied. Further, the second determination unit 46 of the embodiment determines that the capacity of the air conditioner 1 has decreased when the condition Tra>Ts+Td is satisfied, and when the condition Tra>Ts+Td is not satisfied, the air conditioner 1 is It is determined that the capability of device 1 has not decreased.

FIG. 10 shows the indoor air temperature and the start of operation of the air conditioner when the second determination unit of the air conditioner according to the embodiment determines that the capacity of the air conditioner has not decreased in the cooling operation mode. This is an example of a graph showing the relationship with the elapsed time. FIG. 11 shows the temperature of indoor air and the start of operation of the air conditioner when the second determination unit of the air conditioner according to the embodiment determines that the capacity of the air conditioner has decreased in the cooling operation mode. This is an example of a graph showing the relationship with the elapsed time. The reason why it is possible to determine whether the performance of the air conditioner 1 has decreased based on the indoor temperature Tra, the set temperature Ts, and the analysis correction value Td after the threshold time will be explained using FIGS. 10 and 11. Note that in FIGS. 10 and 11, the description will be made on the assumption that the process of starting the operation of the air conditioner 1 in step S305 and the process of starting the measurement of the elapsed time t in step S401 are started at approximately the same timing.

Since the air conditioner 1 is operating in the cooling operation mode, the temperature of the indoor air decreases as the elapsed time from the start of operation of the air conditioner increases in both FIGS. 10 and 11. However, the amount of decrease in indoor air temperature per elapsed time is smaller in FIG. 11 than in FIG. 10. Therefore, if the indoor air temperature after the threshold time Tra is the temperature of the indoor air when the elapsed time reaches the threshold time tt, then the indoor temperature after the threshold time in FIG. 11 is compared with the indoor temperature after the threshold time Tra in FIG. 10. Tra is more expensive.

The indoor temperature Tra after the threshold time in FIG. 10 is smaller than the sum of the set temperature Ts and the analysis correction value Td. Therefore, in FIG. 10, the condition of Tra>Ts+Td is not satisfied.

The indoor temperature Tra after the threshold time in FIG. 11 is larger than the sum of the set temperature Ts and the analysis correction value Td. Therefore, in FIG. 11, the condition of Tra>Ts+Td is satisfied.

In addition, in the embodiment, the threshold time tt is such that the indoor temperature Trb, set temperature Ts, outdoor temperature To, and model data before the start of operation of the air conditioner 1 that is performing operation data analysis control match, and the installation date is the same as the model data. The average value of the memory arrival time of the air conditioner 1 that is later than the air conditioner 1 that is performing the data analysis control is used. Therefore, if the condition Tra>Ts+Td is not satisfied, it can be said that the cooling capacity is higher or equal to the average cooling capacity of air conditioners 1 of the same model installed in a similar environment. Furthermore, if the condition of Tra>Ts+Td is satisfied, it can be said that the cooling capacity is lower than the average cooling capacity of air conditioners 1 of the same model installed in a similar environment. Further, the cooling capacity corresponds to the capacity of the air conditioner 1 in the cooling operation mode. Therefore, it can be determined whether the performance of the air conditioner 1 has decreased based on the indoor temperature Tra, the set temperature Ts, and the analysis correction value Td after the threshold time.

The performance reduction determination process after completing the process in step S405 will be described using FIG. 9. In the process of step S405, if the second determination unit 46 determines that the performance of the air conditioner 1 is decreasing (step S405, YES), the air conditioner 1 performs the process of step S406. In step S406, the notification control unit 47 controls the notification unit 48 so that the notification unit 48 notifies the user that the performance of the air conditioner 1 is decreasing. In the embodiment, in step S406, the notification control unit 47 generates display data to be displayed on the display, which is the notification unit 48, and the display displays the generated display data.

FIG. 12 is a diagram illustrating an example of display content displayed on the notification section of the air conditioner according to the embodiment. In the embodiment, the display contents shown in FIG. 12 are displayed on the notification unit 48 in step S407. The display contents include symbol information 48a and character information 48b. The symbol information 48a uses a symbol to notify that the capacity of the air conditioner 1 is decreasing. The symbol information 48a is, for example, a graph representing the relationship between indoor air temperature and time. The text information 48b uses text to notify that the performance of the air conditioner 1 has decreased. The text information 18a is, for example, the text "Cooling capacity is decreasing." In addition, the text information 18a in the embodiment is the text "As a result of analyzing the operating data of individual units of the same model and the operating data of this air conditioner, the cooling capacity has decreased, so we recommend purchasing a new air conditioner." is displayed, and the text is a text urging the purchase of a new air conditioner 1.

The performance reduction determination process after completing the process in step S406 will be described using FIG. 9. After step S406 ends, the air conditioner 1 ends the performance reduction determination process.

In the process of step S405, if the second determination unit 46 determines that the capacity of the air conditioner 1 has not decreased (step S405, NO), the air conditioner 1 ends the capacity decrease determination process.

In the process of step S404, if the second determination unit 46 determines that the air conditioner 1 is not operating in the cooling operation mode (step S404, NO), the air conditioner 1 executes the process of step S407. conduct. In step S407, the second determination unit 46 determines whether the performance of the air conditioner 1 has decreased based on the indoor temperature Tra after the threshold time, the set temperature Ts, and the analysis correction value Td acquired in step S403. In the embodiment, the air conditioner 1 is operating in a heating operation mode. Therefore, in the embodiment, in step S407, the second determination unit 46 determines whether the indoor temperature Tra after the threshold time is smaller than the difference between the set temperature Ts and the analysis correction value Td. That is, in step S405, the second determination unit 46 determines whether the condition Tra<Ts−Td is satisfied. Further, the second determination unit 46 of the embodiment determines that the capacity of the air conditioner 1 is reduced when the condition Tra<Ts-Td is satisfied, and the second determination unit 46 determines that the capacity of the air conditioner 1 is reduced when the condition Tra<Ts-Td is not satisfied. If so, it is determined that the performance of the air conditioner 1 has not decreased.

As described in step S405, in the embodiment, the threshold time tt is determined when the pre-operation indoor temperature Trb, set temperature Ts, outdoor temperature To, and model data of the air conditioner 1 that is performing operation data analysis control are the same. Therefore, the average value of the past arrival times of the air conditioners 1 whose installation date is later than that of the air conditioner 1 performing the operation data analysis control is used. Therefore, if the condition of Tra<Ts-Td is not satisfied, it can be said that the heating capacity is higher or equal to the average heating capacity of the air conditioner 1 of the same model installed in a similar environment. . Furthermore, satisfying the condition of Tra<Ts-Td means that the heating capacity is lower than the average heating capacity of air conditioners 1 of the same model installed in a similar environment. Further, the heating capacity corresponds to the capacity of the air conditioner 1 in the heating operation mode. Therefore, it can be determined whether the performance of the air conditioner 1 has decreased based on the indoor temperature Tra, the set temperature Ts, and the analysis correction value Td after the threshold time.

If the second determination unit 46 determines that the capacity of the air conditioner 1 has decreased (step S407, YES), the air conditioner 1 performs the process of step S406, and then 1 ends the ability reduction determination process. Note that the process in step S406 is the same as the process described above, so a description thereof will be omitted.

In the process of step S407, if the second determination unit 46 determines that the capacity of the air conditioner 1 has not decreased (step S407, NO), the air conditioner 1 ends the capacity decrease determination process.

The operation data analysis control after the performance reduction determination process in step S311 is completed will be described using FIG. 8. After completing the process in step S311, the air conditioner 1 ends the operation data analysis control.

The air conditioning system 100 performs operational data analysis control. This makes it possible to determine whether the performance of the air conditioner 1 is decreasing based on the memory operation data group and memory arrival time stored in the server 5. In other words, in the case shown in FIG. 1, whether or not the current capacity of the air conditioner 1a has decreased can be determined by determining whether or not the current capacity of the air conditioner 1a is lowered by controlling the air in the air conditioner space different from the air conditioner space being conditioned by the air conditioner 1a. The determination can be made based on a group of operation data and a group of arrival time data generated in the past by the air conditioners 1b to 1d.

In addition, if the set temperature Ts is changed while the air conditioning system 100 is performing operation data analysis control processing, the air conditioning system 100 performs the operation data analysis control that was being performed before the set temperature Ts was changed. After that, the operation data analysis control will start anew.

As described above, the configuration of the air conditioning system 100 according to the embodiment includes an air conditioner 1a that adjusts the temperature of the air in a space to be air conditioned (indoor air corresponds) to a predetermined set temperature; Obtain the pre-operation temperature (corresponding to the pre-operation indoor temperature Trb), which is the temperature of the air in the air conditioning target space before the device 1a performs conditioning, and set the threshold time tt after the air conditioner 1a starts conditioning. The temperature acquisition unit 37 acquires the temperature after a threshold time (corresponding to the indoor temperature Tra after the threshold time), which is the temperature of the air in the air conditioning target space at the time when the air conditioner 1a starts conditioning. A timer section 36 that measures the time until time tt elapses , and another air conditioner (at least one of the air conditioners 1b to 1d) that conditions the air in another air conditioning target space different from the air conditioning target space. Stores multiple types of memory model data indicating the types of other air conditioners set in the corresponding air conditioner) and stores the temperature before the start of operation, which is the temperature of the other air conditioning target space before the other air conditioners start conditioning. Store multiple memory arrival times, which is the time from when other air conditioners start conditioning until the temperature of the other air conditioned space reaches the attainment judgment temperature set in the other air conditioners. A storage section (server side storage section 55 corresponds to this) stores model data, pre-operation temperature, and memory arrival time in association with each other, and stores pre-operation temperature and air conditioner 1a related to the pre-operation temperature. an analysis unit 56 that extracts a plurality of memory arrival times associated with storage model data related to the model data indicating the type of the storage unit from the storage unit; and a threshold time tt calculated based on the plurality of memory arrival times extracted by the analysis unit 56. a calculation unit 57 that determines whether or not the performance of the air conditioner 1a has decreased based on the temperature after the threshold time and the set temperature; The air conditioner 1a includes a notification control unit 47 that performs control to notify the notification unit 48 that the capacity of the air conditioner 1a has decreased when it is determined that the capacity of the air conditioner 1a has decreased. Among the configurations, an analysis unit 56 extracts a plurality of memory arrival times associated with the memory before-operation temperature related to the pre-operation temperature and the memory model data related to the model data from the memory unit; By including a calculation unit 57 that calculates the threshold time tt based on the plurality of extracted memory arrival times, the air conditioning system of the embodiment can set an appropriate threshold time and suppress a decrease in user convenience. It produces the effect that can be achieved.

Further, in the air conditioning system 100 according to the embodiment, as an additional configuration, the storage unit stores a plurality of storage model data, a plurality of storage operation start temperatures, and a plurality of storage arrival times, and the analysis unit has a configuration that extracts multiple memory arrival times. With the additional configuration, the air conditioning system 100 according to the embodiment can set a more appropriate threshold time compared to a case where the storage unit stores one storage model data and one storage arrival time. Achieve the desired effect.

In addition, the air conditioning system 100 according to the embodiment has an additional configuration that the stored pre-operation temperature related to the pre-operation temperature is the stored pre-operation temperature that matches the pre-operation temperature, and the model data The storage model data related to the storage model data has a configuration that the storage model data matches the model data. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, in the air conditioning system 100 according to the embodiment, as an additional configuration, the air conditioner 1a can be operated in a cooling operation mode that lowers the temperature of the air in the air conditioning target space, and the determination unit It has a configuration in which it is determined that the performance of the air conditioner 1a has decreased when the temperature after a threshold time is larger than the sum of the set temperature and a predetermined analysis correction value when the device 1a is in the cooling operation mode. With this additional configuration, the air conditioning system 100 according to the embodiment can accurately determine whether the capacity of the air conditioner 1a is reduced when the air conditioner 1a is in the cooling operation mode. be effective.

Further, in the air conditioning system 100 according to the embodiment, as an additional configuration, the air conditioner 1a can be operated in a heating operation mode that increases the temperature of the air in the air conditioning target space, and the determination unit It has a configuration in which it is determined that the performance of the air conditioner 1a has decreased when the temperature after a threshold time is smaller than the difference between the set temperature and a predetermined analysis correction value when the device 1a is in the heating operation mode. With this additional configuration, the air conditioning system 100 according to the embodiment can accurately determine whether the capacity of the air conditioner 1a is reduced when the air conditioner 1a is in the heating operation mode. be effective.

In addition, the air conditioning system 100 according to the embodiment has an additional configuration in which the storage unit stores a plurality of memory temperature settings that are temperature settings set in other air conditioners, and stores the memory temperature settings and memory model data. The pre-operation temperature and memory arrival time are stored in association with each other, and the analysis unit 56 stores the pre-operation temperature related to the pre-operation temperature, the memorized pre-operation temperature related to the model data, and the memorized set temperature related to the set temperature. It has a configuration that extracts a plurality of memory arrival times associated with from the storage unit. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Moreover, the air conditioning system 100 according to the embodiment has, as an additional configuration, a configuration in which the stored set temperature related to the set temperature is a stored set temperature that matches the set temperature. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Furthermore, in the air conditioning system 100 according to the embodiment, as an additional configuration, the temperature acquisition unit 37 acquires the outdoor temperature To, which is the temperature of the air in the outdoor space, which is a space different from the air conditioning target space, The memory unit stores multiple memory outdoor temperatures, which are the past air temperatures of the outdoor space, which is a space different from other air-conditioned spaces, and stores the outdoor temperature, memory model data, memory operation start temperature, and memory arrival time. The analysis unit 56 stores the stored pre-operation temperature related to the pre-operation temperature, the stored model data related to the model data, and the stored indoor outdoor temperature related to the outdoor temperature To. It has a configuration that extracts a plurality of data from the storage unit. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Moreover, the air conditioning system 100 according to the embodiment has, as an additional configuration, a configuration in which the storage room outdoor temperature related to the outdoor temperature To is the storage room outdoor temperature that matches the outdoor temperature To. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

In addition, the air conditioning system 100 according to the embodiment has an additional configuration in which the storage unit stores a plurality of storage installation dates, which are dates when other air conditioners were installed in other air conditioning target spaces. The date, the stored model data, the stored pre-operation temperature, and the memorized arrival time are stored in association with each other, and the analysis unit 56 stores the stored pre-operation temperature related to the pre-operation temperature, the stored model data related to the model data, and the air conditioner. It has a configuration that extracts a plurality of memory arrival times associated with a storage installation date related to an installation date, which is the date when the device was installed in an air conditioning target space, from the storage unit. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Moreover, the air conditioning system 100 according to the embodiment has, as an additional configuration, a configuration in which the storage installation date related to the installation date is a storage installation date that is later than the installation date. With this additional configuration, the air conditioning system 100 according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

In addition, in the air conditioning system 100 according to the embodiment, as an additional configuration, the temperature acquisition section 37 acquires the temperature of the air in the air conditioning target space, and the timer section 36 acquires the temperature of the air in the air conditioning target space. The temperature acquisition unit 37 measures the arrival time, which is the time it takes for the temperature of the air in the air conditioning target space to reach the determination temperature, and the storage unit stores the pre-operation temperature, model data, and achievement time, respectively, and starts operation. It has a configuration in which the previous temperature, storage model data, and memory arrival time are stored in association with each other. With this additional configuration, the air conditioning system 100 according to the embodiment collects a group of operational data of the air conditioner 1a, and uses the group of collected operational data when determining whether the performance of the other air conditioners 1b to 1d has decreased. It has an effect that can be used for.

Furthermore, the data providing method according to the embodiment collects data from a plurality of air conditioners (air conditioners 1a to 1d correspond) via a network, stores the collected data as a stored data group, and uses the stored data group. An air conditioning system that calculates a threshold time using This is a data provision method executed by a computer used (server 5 is applicable), and the stored data group includes storage model data indicating the type of each of the plurality of air conditioners and data before each of the plurality of air conditioners performs conditioning. This is the temperature before the start of storage operation, which is the temperature of the air conditioning target space, and the time from when each of the plurality of air conditioners starts conditioning until it reaches the attainment judgment temperature set for each of the plurality of air conditioners. It is a data group that is stored in association with the memory reached temperature, and is transmitted via the network from the air conditioner 1a to the model data indicating the type of the air conditioner 1a and the air in the air conditioned space before the air conditioner 1a performs conditioning. A first step (step S306 corresponds to this step) of acquiring the current operation data group including the pre-operation temperature, which is the temperature of A second step (step S307 is applicable) of extracting the memory arrival time related to the previous temperature from the memory data group, and a third step (step S307 is applicable) of calculating the threshold time based on the memory arrival time extracted in the second step. Step S308 is applicable), and a fourth step (Step S309 is applicable) for providing the threshold time calculated in the third step to the air conditioner 1a from which the operating data group has been acquired in the first step. It is the composition. By including the second step and the third step in the configuration, the data providing method of the embodiment has the effect of setting an appropriate threshold time and suppressing a decrease in user convenience.

Furthermore, the data providing method according to the embodiment has, as an additional configuration, a configuration for extracting a plurality of memory arrival times in the second step. With the additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time compared to the case where one memory arrival time is extracted.

Further, in the data providing method according to the embodiment, as an additional configuration, in the second step, the stored pre-operation temperature related to the pre-operation temperature is a stored pre-operation temperature that matches the pre-operation temperature. There is a configuration in which the storage model data related to the model data is the storage model data that matches the model data. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, in the data providing method according to the embodiment, as an additional configuration, the stored data group includes stored model data, stored operation start temperature, stored set temperatures preset for each of the plurality of air conditioners, and stored data. The arrival times are stored in association with each other, and the operating data group acquired in the first step includes the preset temperature set in the air conditioner 1a, and in the second step, the operating data group acquired in the first step includes the stored model data related to the model data. The present invention includes a configuration for extracting a plurality of memory arrival times related to a memory pre-start temperature related to a pre-operation temperature and a memory set temperature related to a set temperature from a stored data group. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, the data providing method according to the embodiment has, as an additional configuration, a configuration in which the stored set temperature related to the set temperature in the second step is a stored set temperature that matches the set temperature. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, in the data providing method according to the embodiment, as an additional configuration, the stored data group is stored outside the storage room, which is the past air temperature of the outdoor space different from the air conditioning target space of each of the plurality of air conditioners. Temperature, storage model data, storage temperature before start of operation, and storage arrival time are stored in association with each other, and the operation data group acquired in the first step includes the temperature of an outdoor space different from the air conditioning target space of the air conditioner 1a. In the second step, the stored model data related to the model data, the stored pre-operation temperature related to the pre-operation temperature, and the stored outdoor temperature related to the outdoor temperature are stored. A configuration is provided for extracting a plurality of from the stored data group. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, the data providing method according to the embodiment has, as an additional configuration, a configuration in which the storage room outdoor temperature related to the outdoor temperature in the second step is the storage room outdoor temperature that matches the outdoor temperature. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Further, in the data providing method according to the embodiment, as an additional configuration, the stored data group includes a stored installation date, which is the date when each of the plurality of air conditioners was installed in the air conditioning target space, and storage model data. The temperature before the start of storage operation and the storage arrival time are stored in association with each other, and the operation data group acquired in the first step includes an installation date that is the date when the air conditioner 1a was installed in the air conditioning target space, In the second step, a plurality of memory arrival times related to the memory model data related to the model data, the memory temperature before the start of operation related to the temperature before the start of operation, and the memory installation date related to the installation date are extracted from the memory data group. Equipped with a configuration. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

Furthermore, the data providing method according to the embodiment has, as an additional configuration, a configuration in which the storage installation date related to the installation date in the second step is a storage installation date that is later than the installation date. With this additional configuration, the data providing method according to the embodiment has the effect of being able to set a more appropriate threshold time, as will be explained later.

A modification of the embodiment will be described.

In the embodiment, when the indoor temperature before the start of the storage operation matches the indoor temperature before the start of the operation Trb, the indoor temperature before the start of the storage operation is related to the indoor temperature before the start of the operation Trb, but the present invention is not limited to this. If the indoor temperature before the start of the storage operation falls within a temperature range in which the indoor temperature Trb falls, the indoor temperature before the start of the storage operation may be related to the room temperature before the start of the operation Trb. For example, the indoor temperature before the start of memory operation is equal to or higher than the lower limit indoor temperature Trbl before the start of operation, which is lower than the indoor temperature before the start of operation Trb by a predetermined temperature, and the upper limit before the start of operation is higher than the indoor temperature before the start of operation Trb by a predetermined temperature. If the temperature is within the range below the room temperature Trbh, it may be related to the room temperature Trb before the start of operation. More specifically, when the indoor temperature Trb before the start of operation is 30.0°C, 29.5°C, which is 0.5°C lower than the indoor temperature before the start of operation Trb, is set as the lower limit indoor temperature Trbl before the start of operation, and the When the upper limit indoor temperature before start of operation Trbh is 30.5°C, which is 0.5°C higher than the indoor temperature before start of operation Trb, and the indoor temperature before start of memorized operation falls within the temperature range of 29.5°C to 30.5°C. The room temperature before the start of the operation may be related to the room temperature Trb before the start of the operation. Similarly, regarding the memory set temperature, if the memory set temperature falls within a temperature range within which the set temperature Ts falls, the memory set temperature may be related to the set temperature Ts. Similarly, regarding the temperature outside the storage room, if the outside temperature of the storage room falls within a temperature range in which the outdoor temperature To falls, the outside temperature of the storage room may be related to the outside temperature To.

However, if the indoor temperature before the start of memory operation matches the indoor temperature before the start of operation Trb and the indoor temperature before the start of memory operation is related to the indoor temperature before the start of operation Trb, then the indoor temperature before the start of operation Trb should be included. When the indoor temperature before the start of the storage operation falls within the temperature range, a more appropriate threshold time tt can be derived compared to the case where the indoor temperature before the start of the storage operation is related to the indoor temperature before the start of the operation Trb. In the latter case, for example, when the majority of the related indoor temperatures before the start of the memory operation are higher than the indoor temperature before the start of the memory operation Trb, this means that the indoor temperature before the start of the memory operation is higher than the indoor temperature before the start of the memory operation. This is because the case where the indoor temperature before the start of storage operation is related to the indoor temperature before the start of operation Trb when it matches the previous indoor temperature Trb includes cases in which the threshold time tt is obviously set more appropriately. Therefore, when the indoor temperature before the start of the storage operation matches the indoor temperature before the start of the operation Trb, it is preferable that the indoor temperature before the start of the storage operation is related to the indoor temperature before the start of the operation Trb. Note that this also applies to the memory set temperature and the temperature outside the memory room.

In the embodiment, it is assumed that the storage model data is related to the model data when the storage model data matches the model data, but the present invention is not limited to this, even if the storage model data and the model data do not exactly match. The storage model data and the model data may be related. For example, when an air conditioner whose model data is MSZ-AXXX is replaced by an air conditioner whose model data is MSZ-AZZZ due to a model change, if the model data is MSZ-AXXX, the stored model data is MSZ-AZZZ. Data may also be involved.

However, as in the case of the room temperature before starting storage operation, if the storage model data matches the model data, then the storage model data is related to the model data, but if the storage model data and the model data do not exactly match, then Even so, a more appropriate threshold time tt can be derived compared to the case where the storage model data and model data are related. Therefore, it is preferable that the storage model data is related to the model data when the storage model data matches the model data.

In the embodiment, the storage installation date is related to the installation date if the storage installation date is later than the installation date, but this is not limited to this. However, the storage model data and the model data may be related.

However, if the storage device type data is related to the device model data when the storage installation date is later than the installation date, then even if the storage installation date is earlier than the installation date, the storage device type data is A more appropriate threshold time tt can be derived compared to the case where model data is involved. This means that if the memory installation date is earlier than the installation date, the memory operation data associated with the memory installation date will be the memory operation data related to the air conditioner that is older than the air conditioner that acquired the installation date. This is because the storage operation data is more likely to be data when the capacity is lower than when the storage installation date is later than the installation date. It is clear that the threshold time tt is set more appropriately when there is less memorized operation data when the performance is reduced. Therefore, it is preferable that the storage model data is related to the model data when the storage installation date is later than the installation date.

In addition, in the embodiment, pre-operation indoor temperature, memory set temperature, memory outdoor temperature, and memory model data are stored, which are related to the pre-operation indoor temperature Trb, set temperature Ts, outdoor temperature To, model data, and installation date, respectively. The storage arrival time associated with the storage installation date is extracted, but is not limited thereto. It is sufficient to extract at least the storage arrival time associated with the stored pre-driving indoor temperature Trb and the stored model data, which are respectively related to the pre-driving indoor temperature Trb and the model data. However, a more appropriate threshold time tt is set when specified using the set temperature Ts, the outdoor temperature To, and the installation date. Furthermore, by using data other than the pre-operation indoor temperature Trb, set temperature Ts, outdoor temperature To, model data, and installation date, the memory arrival time associated with the memory data related to the data may be extracted.

Further, in the embodiment, the calculation unit 57 is provided in the server 5, but the calculation unit 57 is not limited to this, and may be provided in the air conditioner 1. In this case, the arithmetic unit 57 is realized by the processor 26, 30, or 33 executing processing according to a program stored in the memory 27, 31, or 34. Furthermore, in this case, after completing the process in step S307 in the driving data analysis process, the server performs the process in step S309. The analysis return signal transmitted in step S309 includes the memory arrival time extracted in step S307. After completing the process in step S309, the air conditioner 1 performs the process in step S308 and derives the threshold time tt.

FIG. 13 is a schematic diagram of an air conditioning system according to a modification of the embodiment. FIG. 14 is a diagram illustrating an example of display content displayed on a notification device according to a modification of the embodiment. In the embodiment, the notification terminal 24 of the remote control 4 notifies the user that the capacity of the air conditioner 1 has decreased, but the present invention is not limited to this, and data may be sent to the notification device 400 that is not included in the air conditioning system 1. The user may be notified that the capacity of the air conditioner 1 is decreasing by sending the information.

The notification device 400 is a device that notifies the user of data in writing or voice. Examples of the notification device 400 include a personal computer, a television, a smartphone, or a tablet terminal. Further, the notification device 400 is connected to the air conditioner 1 so as to be able to transmit or receive data. Note that, as shown in FIG. 13, in the modified example of the embodiment, the air conditioner 1 and the notification device 400 are configured to be able to directly transmit or receive data; A configuration that allows data to be indirectly transmitted or received may also be used. Further, in a modification of the embodiment, the notification unit 48 is realized by the notification device 400 and is not included in the air conditioning system 1.

FIG. 14 is a diagram illustrating an example of display content displayed on a notification device according to a modification of the embodiment. In a modification of the embodiment, the display contents shown in FIG. 14 are displayed on the notification device 400 in step S407. The display contents include symbol information 400e and character information 400f. Note that the symbol information 400e is the same as the symbol information 48a described in the embodiment, so a description thereof will be omitted. The text information 400f is the same as the text information 48b described in the embodiment except that it displays the URL (Uniform Resource Locator) of the online shop for air conditioners, so the explanation will be omitted. By selecting the URL, the user can shop at the online shop for air conditioners. Note that an icon to which a hyperlink of an online shop for air conditioners is set may be displayed in the pattern information 400a. In the air conditioning system according to the modification of the embodiment, as an additional configuration, when the determination unit determines that the capacity of the air conditioner has decreased, the notification control unit 47 controls the notification unit (the notification device 400 Applicable) has a configuration that displays a hyperlink of an online shop for air conditioners. This additional configuration has the effect of encouraging users to purchase a new air conditioner whose performance has deteriorated.

1 Air conditioner, 1a to 1d Air conditioner, 2 Indoor unit, 2a to 2d Indoor unit, 3 Outdoor unit, 3a to 3d Outdoor unit, 4 Remote control, 4a to 4d Remote control, 5 Server 10 Compressor, 11 Outdoor heat exchange 12 expansion valve, 13 indoor heat exchanger, 14 four-way valve, 15 refrigerant piping, 16 outdoor blower, 17 indoor blower, 18 outdoor temperature sensor, 19 indoor temperature sensor, 20 indoor unit control device, 21 outdoor unit control device, 22 first signal line, 23 second signal line, 24 notification terminal, 25 input terminal, 26 processor, 27 memory, 28 hardware interface, 29 timer 30 processor, 31 memory, 32 hardware interface, 33 processor, 34 Memory, 35 Hardware interface, 36 Timer unit, 37 Temperature acquisition unit, 38 Air conditioner side storage unit, 39 Input unit, 40 First judgment unit, 41 Command unit, 42 Air conditioning unit, 43 Data creation unit, 44 Air conditioner side transmitting section, 45 Air conditioner side receiving section, 46 Second judgment section, 47 Notification control section, 48 Notification section, 48a Design information, 48b Character information, 51 Processor, 52 Memory, 53 Hardware interface, 54 server-side reception unit, 55 server-side storage unit, 56 analysis unit, 57 calculation unit, 58 server-side transmission unit, 100 air conditioning system 200 building 200a to 200d building, 300 network, 400 notification equipment, 400a to 400d notification Equipment, 400e pattern information, 400f character information.

Claims (13)

an air conditioner that adjusts the temperature of air in an air-conditioned space to a predetermined set temperature;
Acquire a pre-operation temperature that is the temperature of the air in the air conditioning target space before the air conditioner performs conditioning, and perform the air conditioning at a time when a threshold time has elapsed since the air conditioner started conditioning. a temperature acquisition unit that acquires a temperature after a threshold time that is the temperature of the air in the target space;
a timer unit that measures the time from when the air conditioner starts conditioning until the threshold time elapses ;
storing storage model data indicating a type of the other air conditioner set to another air conditioner that conditions air in another air conditioner space different from the air conditioner space; stores a pre-operation temperature that is the temperature of the other air conditioning target space before starting conditioning, and the temperature of the other air conditioning target space after the other air conditioner starts conditioning is stored. A memory that stores a memory arrival time that is a time taken to reach a determination temperature set in the other air conditioner, and stores the memory model data, the memory temperature before operation start, and the memory arrival time in association with each other. Department and
an analysis unit that extracts, from the storage unit, the memory arrival time associated with the stored pre-operation temperature related to the pre-operation temperature and the stored model data related to model data indicating the type of the air conditioner; and,
a calculation unit that calculates the threshold time based on the memory arrival time extracted by the analysis unit;
a determination unit that determines whether the performance of the air conditioner has decreased based on the temperature after the threshold time and the set temperature;
a notification control unit that performs control to cause a notification unit to notify that the capacity of the air conditioner has decreased when the determination unit determines that the capacity of the air conditioner has decreased;
Air conditioning system with. The storage unit stores a plurality of the storage model data, a plurality of the temperatures before starting the storage operation, and a plurality of the storage arrival times,
The air conditioning system according to claim 1, wherein the analysis unit extracts a plurality of the memory arrival times. The temperature before the start of storage operation that is related to the temperature before the start of operation is the temperature before the start of storage operation that matches the temperature before the start of operation,
The air conditioning system according to claim 1 or 2, wherein the stored model data related to the model data is the stored model data that matches the model data. The air conditioner can be operated in a cooling operation mode that lowers the temperature of the air in the air conditioning target space,
The determination unit determines that the capacity of the air conditioner is higher when the temperature after the threshold time is greater than the sum of the set temperature and a predetermined analysis correction value when the air conditioner is in the cooling operation mode. The air conditioning system according to any one of claims 1 to 3, wherein the air conditioning system is determined to be decreasing. The air conditioner can be operated in a heating operation mode that increases the temperature of the air in the air conditioned space,
The determination unit determines that the capacity of the air conditioner is low when the temperature after the threshold time is smaller than the difference between the set temperature and a predetermined analysis correction value when the air conditioner is in the heating operation mode. The air conditioning system according to any one of claims 1 to 4, wherein the air conditioning system is determined to be decreasing. The storage unit stores a plurality of memory set temperatures that are set temperatures for the other air conditioners, and stores the memory set temperatures, the memory model data, the memory operation start temperature, and the memory arrival time, respectively. associate and remember,
The analysis unit is configured to calculate the memory arrival time associated with the memory pre-operation temperature related to the pre-operation temperature, the memory model data related to the model data, and the memory preset temperature related to the preset temperature. The air conditioning system according to any one of claims 2 to 5, wherein a plurality of are extracted from the storage unit. The air conditioning system according to claim 6, wherein the stored preset temperature related to the preset temperature is the stored preset temperature that matches the preset temperature. The temperature acquisition unit acquires an outdoor temperature that is the temperature of air in an outdoor space that is a space different from the air conditioning target space,
The storage unit stores a plurality of storage outdoor temperatures that are temperatures of air in past outdoor spaces that are different from the other air conditioning target spaces, and stores the storage outdoor temperatures, the storage model data, and the storage operation start. storing the previous temperature and the memory arrival time in association with each other;
The analysis unit is configured to calculate the storage arrival time associated with the storage pre-operation temperature that is related to the pre-operation temperature, the storage model data that is related to the model data, and the storage outdoor temperature that is related to the outdoor temperature. The air conditioning system according to any one of claims 2 to 7, wherein a plurality of are extracted from the storage unit. The air conditioning system according to claim 8, wherein the storage room outdoor temperature related to the outdoor temperature is the storage room outdoor temperature that matches the outdoor temperature. The storage unit stores a plurality of storage installation dates that are dates when the other air conditioner was installed in the other air conditioning target space, and stores the storage installation date, the storage model data, and the storage temperature before starting operation. and the memory arrival time are stored in association with each other,
The analysis unit stores the stored pre-operation temperature related to the pre-operation temperature, the stored model data related to the model data, and an installation date that is the date on which the air conditioner was installed in the air conditioning target space. The air conditioning system according to any one of claims 2 to 9, wherein a plurality of the memory arrival times associated with the memory installation date related to the memory are extracted from the memory unit. The air conditioning system according to claim 10, wherein the storage installation date related to the installation date is the storage installation date that is later than the installation date. The temperature acquisition unit acquires the temperature of the air in the air conditioning target space,
The timer section measures an arrival time that is the time from when the air conditioner starts conditioning until the temperature of the air in the air conditioning target space acquired by the temperature acquisition section reaches the arrival determination temperature,
12. The storage unit stores the pre-operation temperature, the model data, and the arrival time in association with each other as the pre-operation temperature, the model data, and the memory arrival time, respectively. Air conditioning system as described in Section. Collect data from multiple air conditioners via a network, store the collected data as a past data group, calculate a threshold time using the past data group, and use the calculated threshold time to A data provision method executed by a computer used in an air conditioning system that determines whether the capacity of any one of the air conditioning devices has decreased,
The past data group includes storage model data indicating the type of each of the plurality of air conditioners, and temperature before the start of storage operation, which is the temperature of the air conditioning target space before each of the plurality of air conditioners performs conditioning. and a memory attained temperature, which is the time from when each of the air conditioners starts conditioning until it reaches the attainment determination temperature set for each of the air conditioners, and is stored in association with each other. ,
The current operation includes model data indicating the type of the air conditioner from the air conditioner via the network and a pre-operation temperature that is the temperature of the air in the air conditioned space before the air conditioner performs conditioning. A first step of obtaining a data set;
a second step of extracting, from the past data group, a memory arrival time related to the storage model data related to the model data and the storage temperature before the start of operation, which is related to the temperature before the start of operation;
a third step of calculating a threshold time based on the memory arrival time extracted in the second step;
a fourth step of providing the threshold time calculated in the third step to the air conditioner that acquired the operation data group in the first step;
A data provision method with

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