Maintenance system for refrigeration cycle equipment

Abstract

Appropriately determine the necessity of replacement for parts of the refrigeration cycle device. 【Solution means】The maintenance system 90 supports the replacement of the compressor 111 of the target refrigeration cycle device 100, and includes a first input unit 11, an estimation unit 18, and an output unit 13. The first input unit 11 receives the input of first information regarding the target installation period T of the target refrigeration cycle device 100 t The estimation unit 18 estimates the target actuator operation time T ta based on the first information and the second information. The target actuator operation time T ta is the cumulative operation time of the compressor motor 111m of the compressor 111. The second information is related to the reference actuator operation time T ra or the reference actuator operation time T ra . The reference actuator operation time T ra is the cumulative operation time of the compressor motors 211m of the compressors 211 of a plurality of reference refrigeration cycle devices 200. The reference actuator operation time T ra is the cumulative operation time of the compressor motor 211m. The output unit 13 outputs the target actuator operation time T ta estimated by the estimation unit 18.

Description

[Technical Field]

[0001] This disclosure relates to a maintenance system for a refrigeration cycle system that may require the replacement of parts. [Background technology]

[0002] Patent Document 1 (Japanese Patent Publication No. 6401614) discloses a system that connects equipment (such as air conditioners, televisions, and lighting devices) owned by users (companies, organizations, households, etc.) to a cloud server owned by a data center. User equipment usage history information is transmitted to the cloud server via the network. A service provider that receives information from the data center presents the user with an equipment warranty plan based on the usage history information. [Overview of the project] [Problems that the invention aims to solve]

[0003] As demonstrated by this system, by using servers connected via a network to devices owned by numerous users, operational data from each device can be collected. Service personnel performing maintenance can then propose the replacement of components installed in the equipment based on this operational data. However, many devices currently operating on the market, such as air conditioners, do not have the functionality to connect to a network. Therefore, there is a need to determine whether or not components need to be replaced for devices that are not connected to a network.

[0004] The need to replace parts arises based on the cumulative operating time of the equipment. However, for equipment that cannot connect to the network, the server cannot know the cumulative operating time. Service personnel can know the installation period, which is the elapsed time from the time of installation to the present, but the length of the installation period is greater than the length of the cumulative operating time. If the installation period is used to determine whether replacement is necessary, unnecessary replacements may occur. [Means for solving the problem]

[0005] The maintenance system of the first aspect supports the replacement of target components mounted on one target refrigeration cycle device. The maintenance system includes an input unit, an estimation unit, and an output unit. The input unit receives the input of first information. The first information relates to a target installation period (T t ) which is the period since the installation of the target refrigeration cycle device. The estimation unit estimates a target actuator operation time (T ta ) based on the first information and second information. The target actuator operation time (T ta ) is the cumulative operation time of a target actuator mounted on the target component. The second information relates to a reference actuator operation probability (P ra ) or a reference actuator operation time (T ra ). The reference actuator operation probability (P ra ) is the operation probability of a reference actuator included in reference components mounted on a plurality of reference refrigeration cycle devices. The reference actuator operation time (T ra ) is the cumulative operation time of a reference actuator included in reference components mounted on a plurality of reference refrigeration cycle devices. The output unit outputs the target actuator operation time (T ta ) estimated by the estimation unit.

[0006] According to this configuration, when the maintenance system obtains the target actuator operation time (T ta ) necessary for determining whether replacement is required, it does not directly treat the target installation period (T t ) which is the period since the installation of the target refrigeration cycle device as the target actuator operation time (T ta ), but by referring to the data of the reference refrigeration cycle device, it can treat a period shorter than the target installation period (T t ) as the target actuator operation time (T ta ). Therefore, the maintenance system can suppress a situation where a service person replaces a target component with a new target component although excessive product life remains.

[0007] The maintenance system from the second perspective is the maintenance system from the first perspective, further comprising an acquisition unit, which acquires the second information via a network.

[0008] In this configuration, the second information is acquired by the acquisition unit. Therefore, the operating time of the target actuator (T ta The estimation unit can utilize the second piece of information when estimating ).

[0009] The maintenance system from the third perspective is the maintenance system from the first perspective, further comprising a memory unit. The memory unit stores the second information.

[0010] In this configuration, the second information is stored in the memory unit. Therefore, the operating time of the target actuator (T ta When the estimation unit estimates ), it can freely use the second information by accessing the memory unit.

[0011] The maintenance system of the fourth perspective is the maintenance system of the first perspective, further comprising an acquisition unit, a storage unit, and a second information generation unit. The second information generation unit generates second information based on the information acquired by the acquisition unit via the network and the information stored in the storage unit.

[0012] In this configuration, second information is generated based on the information acquired by the acquisition unit and the information stored in the storage unit. Target actuator operating time (T ta The generated second information can be used when the estimation unit estimates ).

[0013] The fifth maintenance system is a maintenance system from either the first or fourth perspective, and its output unit further outputs a target part replacement suggestion. The target part replacement suggestion is based on the target actuator operating time (T ta It is determined according to the following.

[0014] With this configuration, the output unit will suggest replacement to the service person if the target component needs replacing. Therefore, the burden on the service person in deciding whether or not the target component needs replacing can be reduced.

[0015] The maintenance system of the sixth perspective is a maintenance system of any one of the first perspectives or fifth perspectives, wherein the first information includes at least one of the following:

[0016] - Information regarding the manufacturing date, installation date, delivery date, purchase date of the refrigeration cycle equipment, or the last replacement date of the relevant parts in the refrigeration cycle equipment. - Information regarding the manufacturing date, installation date, delivery date, purchase date of the refrigeration cycle equipment, or the period from the last replacement of the relevant component in the refrigeration cycle equipment to the present, or - Information to identify the delivery destination of the target refrigeration cycle equipment.

[0017] According to this configuration, the first piece of information includes either a date, a period, or delivery destination information. If a date or period is used, the target installation period of the refrigeration cycle device (T t It is easy to calculate the target installation period (T) of the refrigeration cycle equipment. The delivery destination information can be used to refer to the database of the delivery destination's purchase history information, thereby making it easy to calculate the target installation period (T) of the refrigeration cycle equipment. t ) can be derived.

[0018] The maintenance system of the seventh perspective is a maintenance system of any one of the first to sixth perspectives, wherein the second information includes at least one of the following:

[0019] - Reference actuator operating time (T ra ), - The cumulative operating time of multiple reference refrigeration cycle devices is the reference device operating time (T rc ), - Reference actuator operating probability (P ra ), - The operating probability of multiple reference refrigeration cycle devices is the reference device operating probability (P rc ), or, - Reference actuator operating time (T) for each of the multiple reference actuators. ra ) and reference device operating time (T rc The ratio of the reference operating time (R) is the ratio of the reference operating time (R) rac ), Or, - The mean, weighted mean, median, mode, maximum, or minimum of those values.

[0020] According to this configuration, the second piece of information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra These are various numerical values ​​related to the target installation period (T) of the refrigeration cycle device. t By using the first and second pieces of information, the estimation unit calculates the target actuator operating time (T ta ) can be estimated.

[0021] The maintenance system of the eighth perspective is a maintenance system of either the first perspective or the seventh perspective, and the input unit further accepts input of third information. The third information is the operating probability (P) of the target refrigeration cycle device. tc The second piece of information concerns the following:

[0022] - Reference actuator operating time (T) for each of the multiple reference actuators. ra ) and reference device operating time (T rc The ratio of the reference operating time (R) is the ratio of the reference operating time (R) rac ), Or, - The mean, weighted mean, median, mode, maximum, or minimum of those values. The estimation unit calculates the target actuator operating time (T) based on the first information, the second information, and the third information. ta We estimate ).

[0023] In this configuration, the maintenance system receives first and third information from the service person. Therefore, the service person will determine the target installation period (T) of the refrigeration cycle device.t ) and the reference operating time ratio (R) of the reference refrigeration cycle device rac When it is possible to know these things, estimations can be made using them.

[0024] The maintenance system of the ninth perspective is a maintenance system of either the first or eighth perspective, wherein the input unit further accepts the fourth information. The fourth information is the target actuator operating time (T) from the second information, which the estimation unit determines. ta It is used to extract the elements used to estimate ).

[0025] With this configuration, the maintenance system can extract information about reference refrigeration cycle devices whose content in the fourth piece of information is similar to that of the target refrigeration cycle device, from among the second piece of information about a large number of reference refrigeration cycle devices. Therefore, the maintenance system can make highly accurate estimations.

[0026] The maintenance system of the 10th perspective is the maintenance system of the 9th perspective, wherein the 4th information includes at least one of the following:

[0027] - Information regarding the hardware configuration, including at least the model number and the number of heat source units. - Information regarding control specifications, - Information regarding the business use of the building where it is located. - Information regarding the building's age, - Information regarding the area where it is installed, or - Information regarding the set target temperature.

[0028] In this configuration, the maintenance system extracts reference refrigeration cycles that are similar to the target refrigeration cycle in terms of hardware configuration, control specifications, and building business use, and generates second information from the extracted reference refrigeration cycle information. Therefore, the estimation unit can estimate the target actuator operating time (T) with high accuracy. ta ) can be estimated.

[0029] The maintenance system of the 11th perspective is the maintenance system of the 10th perspective, wherein the fourth information includes business use and the number of heat source units.

[0030] In this configuration, the fourth piece of information includes, for example, the business use of the building, such as a hospital, office, factory, or restaurant, and the number of heat source units. Therefore, data on a reference refrigeration cycle that is used in a similar manner to the target refrigeration cycle can be obtained as the second piece of information.

[0031] The method described in the 12th perspective is for assisting in the replacement of a target component installed in a single target refrigeration cycle unit. In this method, the terminal receives input of the first information. The first information is the target installation period (T t This concerns the target installation period (T t ) is the period since the installation of the target refrigeration cycle device. In the method, the terminal calculates the operating time of the target actuator (T) based on the first information and the second information. ta ) is estimated. Target actuator operating time (T ta ) is the cumulative operating time of the target actuator mounted on the target component. The second piece of information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra This relates to the reference actuator operating probability (P ra ) is the operating probability of a reference actuator included in the reference components mounted on multiple reference refrigeration cycle devices. Reference actuator operating time (T ra ) is the cumulative operating time of the reference actuator included in the reference component mounted on multiple reference refrigeration cycle devices. In the method, the terminal is the operating time of the target actuator (T ta Outputs ).

[0032] According to this method, the service person can determine the operating time of the target actuator (T ta When obtaining the target installation period (T) of the target refrigeration cycle device, t ) is used directly as the operating time (T) of the target actuator. taRather than treating it as such, the target installation period (T) is determined by taking into account the data of the reference refrigeration cycle device. t A period shorter than the operating time (T) of the target actuator ta This allows it to be treated as such. Therefore, it can prevent situations where service personnel mistakenly replace a part with an excessively long remaining product life with a new part.

[0033] The program for the 13th perspective allows a terminal to assist in the replacement of a target component installed in a target refrigeration cycle unit. The program causes the terminal to function as an input unit for receiving the first information. The first information is the target installation period (T t This concerns the target installation period (T t ) is the period since the installation of the target refrigeration cycle device. The program uses the terminal to determine the operating time of the target actuator (T) based on the first and second pieces of information. ta It functions as an estimation unit that estimates the operating time (T) of the target actuator. ta ) is the cumulative operating time of the target actuator mounted on the target component. The second piece of information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra This relates to the reference actuator operating probability (P ra ) is the operating probability of a reference actuator included in the reference component mounted on multiple reference refrigeration cycle devices. Reference actuator operating time (T ra ) is the cumulative operating time of the reference actuator included in the reference components mounted on multiple reference refrigeration cycle devices. The program tells the terminal the target actuator operating time (T) of the target actuator estimated by the estimation unit. ta It functions as an output unit that outputs ).

[0034] According to this program, the terminal will determine the target actuator's operating time (T ta When obtaining the target installation period (T) of the target refrigeration cycle device, t ) is used directly as the operating time (T) of the target actuator. taRather than treating it as such, the target installation period (T) is determined by taking into account the data of the reference refrigeration cycle device. t A period shorter than the operating time (T) of the target actuator ta This allows it to be treated as such. Therefore, it can prevent situations where service personnel mistakenly replace a part with an excessively long remaining product life with a new part. [Brief explanation of the drawing]

[0035] [Figure 1] This is a schematic diagram showing the configuration of the maintenance system 90 of the first embodiment. [Figure 2] This is a schematic diagram showing the configuration of the target refrigeration cycle device 100. [Figure 3] This is a schematic diagram showing the target component, target actuator, reference component, and reference actuator. [Figure 4] This is a diagram showing the contents of Table 50. [Figure 5] This is a diagram showing the contents of Table 50. [Figure 6] This figure shows the contents of a simplified table 70. [Figure 7] This is a diagram showing the aggregated values. [Figure 8] This figure shows the contents of Table 50 related to the modified example. [Figure 9] This is a schematic diagram showing the configuration of the maintenance system 90 of the second embodiment. [Figure 10] This is a schematic diagram showing the configuration of the maintenance system 90 of the third embodiment. [Modes for carrying out the invention]

[0036] <First Embodiment> (1) Overall structure Figure 1 shows the configuration of the maintenance system 90 of the first embodiment. The maintenance system 90 assists service personnel in determining whether or not parts need to be replaced in the target refrigeration cycle device 100. The maintenance system 90 includes a mobile terminal 10, a network 20, and a server 30.

[0037] (2) Detailed configuration (2-1) Target refrigeration cycle device 100 The refrigeration cycle device 100 shown in Figure 2 is the one that the maintenance system 90 will determine whether or not it needs to be replaced. In most cases, the refrigeration cycle device 100 is already installed on the user's premises and is being used by the user. The refrigeration cycle device 100 is designed to allow the user to utilize cold heat or hot heat by circulating a refrigerant R. The refrigeration cycle device 100 can be configured as, for example, an air conditioner, refrigerator, freezer, water heater, or floor heating system. The refrigeration cycle device 100 has a heat source unit 110, a utilization unit 120, a group of connecting pipes 130, and a communication line 135.

[0038] The heat source unit 110 includes a compressor 111, a four-way switching valve 112, a heat source heat exchanger 113, a heat source fan 114, a heat source expansion valve 115, an accumulator 116, a liquid shut-off valve 117, and a gas shut-off valve 118. The utilization unit 120 includes a utilization heat exchanger 123 and a utilization fan 124. The connecting piping group 130 includes a liquid refrigerant pipe 131 and a gas refrigerant pipe 132. The components listed above constitute a refrigerant circuit that circulates the refrigerant R.

[0039] The heat source unit 110 further includes a heat source control unit 119. The utilization unit 120 further includes a utilization control unit 129. The heat source control unit 119 and the utilization control unit 129, together with the communication line 135, constitute a system control unit 109. The system control unit 109 controls the actuators of various components constituting the refrigerant circuit and collects data from various sensors (not shown). Furthermore, the system control unit 109 can also communicate with the mobile terminal 10.

[0040] Some components of the target refrigeration cycle system 100 require replacement at predetermined intervals. Examples of components requiring replacement include the compressor 111, the four-way switching valve 112, the heat source fan 114, the heat source expansion valve 115, or the utilization fan 124. These components requiring replacement are equipped with actuators such as motors or solenoids. When the cumulative operating time of an actuator exceeds a predetermined value, the probability of malfunction increases. In such cases, it is desirable to replace the component on which the actuator is installed.

[0041] In the heat source unit 110, the compressor 111, four-way switching valve 112, heat source fan 114, and heat source expansion valve 115 each have actuators: a compressor motor 111m, a four-way switching valve solenoid 112s, a heat source fan motor 114m, and a heat source expansion valve motor 115m, respectively. In the utilization unit 120, the utilization fan 124 has a utilization fan motor 124m as its actuator.

[0042] (2-2) Mobile device 10 The mobile terminal 10 shown in Figure 1 is carried by a service person. The mobile terminal 10 receives information about the target refrigeration cycle device 100 as input from the service person, or obtains various data by communicating with the server 30.

[0043] The mobile terminal 10 has a first input unit 11, a second input unit 12, an output unit 13, an acquisition unit 14, a filter unit 15, an expansion unit 16, an aggregation unit 17, and an estimation unit 18. These parts schematically represent specific functions of the mobile terminal 10 as blocks. These parts may each be configured as independent hardware. Alternatively, the entire system, combining these parts, may consist of a single processor, program memory, working memory, and input / output devices. In this case, the program in the program memory causes the processor and other hardware such as input / output devices belonging to the mobile terminal 10 to function as the first input unit 11, second input unit 12, output unit 13, acquisition unit 14, filter unit 15, expansion unit 16, aggregation unit 17, and estimation unit 18.

[0044] The first input unit 11 acquires information about the target refrigeration cycle device 100 as input from a service person. The first input unit 11 is configured as a keyboard.

[0045] The second input unit 12 acquires information from the target refrigeration cycle device 100 by communicating with the target refrigeration cycle device 100. Communication is performed by wire or wireless. The second input unit 12 is connected, for example, to the system control unit 109 of the target refrigeration cycle device 100.

[0046] The output unit 13 is for outputting information to service personnel. The output unit 13 is composed of a display.

[0047] The acquisition unit 14 acquires information held by the server 30 by communicating with the server 30 via the network 20.

[0048] The filter unit 15 filters the information in the table 50 (described later) that the mobile terminal 10 receives from the server 30, and extracts a portion of the information that made up the table 50.

[0049] The expansion unit 16 expands the data output by the filter unit 15 into a simplified table 70, which will be described later.

[0050] The aggregation unit 17 calculates the values ​​of numerous records contained in a specific field of the simplified table 70 expanded in the expansion unit 16, and aggregates them into a single value. One example of aggregation calculation is averaging the values ​​of numerous records. In this case, the average value becomes the aggregated value.

[0051] The estimation unit 18 is an arithmetic circuit for estimating the target numerical value that the service person is trying to find out.

[0052] As described later, the mobile terminal 10 is the first information (target installation period T) t The thing itself, or information for calculating it), second information (reference actuator operating probability P) ra The operating time T of the actuator itself or a reference actuator. ra The device itself, or information for calculating them), third information (operating probability P of the target device) tc It handles the data itself, or the information used to calculate it, and fourth information (information used for filtering the data of the reference refrigeration cycle device 200).

[0053] (2-3) Network 20 The service person connects the mobile terminal 10 to the network 20 by wire or wireless connection. The network 20 is, for example, the internet. Alternatively, the network 20 may be a dedicated network owned by the manufacturer of the refrigeration cycle equipment. The target refrigeration cycle equipment 100 is not connected to the network 20.

[0054] (2-4) Server 30 Server 30 is connected to network 20 by wired or wireless connection. Server 30 has a database 31 and a communication unit 32.

[0055] Database 31 stores data on replacements performed in the past. Specifically, database 31 stores detailed information on past parts replacements for numerous reference refrigeration cycle units 200, which are different from the target refrigeration cycle unit 100, as numerous records. The numerous reference refrigeration cycle units 200 are connected to server 30 via network 20.

[0056] The communications unit 32 communicates with the mobile terminal 10 via the network 20.

[0057] (3) Items to be maintained (3-1) Target refrigeration cycle apparatus Figure 3 illustrates the maintenance target of the maintenance system 90. As mentioned above, the target of the maintenance system 90's decision regarding parts replacement is the target refrigeration cycle device 100.

[0058] (3-2) Target device The target refrigeration cycle device 100 has target parts. Target parts are parts that the maintenance system 90 is trying to determine whether or not it is time for replacement. The maintenance system 90 can treat the compressor 111, four-way switching valve 112, heat source fan 114, heat source expansion valve 115, utilization fan 124, etc. of the target refrigeration cycle device 100 as target parts. In this embodiment, the target part will be described as the compressor 111.

[0059] (3-3) Target Actuator The target component is equipped with the target actuator. If the target actuator malfunctions or fails, the target component needs to be replaced. Such target actuators may include, for example, the compressor motor 111m, the four-way switching valve solenoid 112s, the heat source fan motor 114m, the heat source expansion valve motor 115m, and the utilization fan motor 124m of the target refrigeration cycle device 100. In this embodiment, the maintenance system 90 will be described as treating the compressor motor 111m as the target actuator. The compressor motor 111m is driven by the heat source control unit 119, which is part of the system control unit 109.

[0060] (3-4) Reference refrigeration cycle apparatus The maintenance system 90 stores data on past replacements of numerous reference refrigeration cycle units 200 in a database 31 to assist in determining whether replacement is necessary.

[0061] (3-5) Reference device Database 31 stores information on reference parts that are compared with the target part. The reference parts are components of a reference refrigeration cycle device 200 that correspond to the target part. In this embodiment, the reference parts are described as compressors 211 of multiple reference refrigeration cycle devices 200.

[0062] (3-6) Reference Actuator Database 31 stores information on reference actuators that are compared with the target actuator. A reference actuator is an actuator of a reference refrigeration cycle device 200 that corresponds to the target actuator. In this embodiment, the reference actuators are described as compressor motors 211m of multiple reference refrigeration cycle devices 200. The compressor motors 211m are driven by a heat source control unit 219 that constitutes the system control unit 209 of the reference refrigeration cycle device 200.

[0063] (4) Data stored in database 31 Database 31 stores secondary information or information used to derive secondary information. Secondary information refers to the reference actuator operating probability P. ra The itself, or the operating time of the reference actuator (T ra ) is either the actuator itself or the information used to calculate it. Reference actuator operating probability P ra and reference actuator operating time (T ra The details of the second information will be described later. The second information, or the source information for deriving the second information, is stored in the database 31 in the form of table 50 shown in Figures 4 and 5.

[0064] Table 50 contains information about the past operation of numerous reference refrigeration cycle devices 200. All of the reference refrigeration cycle devices 200 are connected to the network 20. Information about the operation of the reference refrigeration cycle devices 200 is transmitted to the server 30 via the network 20, stored in the database 31, and forms Table 50.

[0065] Table 50 consists of multiple records. Each row in Table 50 represents one record. It can be seen that the number of records shown in Figures 4 and 5 is 11.

[0066] Field 51 of Table 50, shown in Figure 4, stores the record number. The record number of a given record is determined so as not to overlap with the record numbers of other records.

[0067] Field 52 stores a refrigeration cycle unit ID for identifying individual reference refrigeration cycle units 200. The refrigeration cycle unit ID of a given reference refrigeration cycle unit 200 is determined so as not to overlap with the refrigeration cycle unit IDs of other reference refrigeration cycle units 200.

[0068] Field 53 stores the customer ID assigned to the customer who purchased the corresponding reference refrigeration cycle unit 200.

[0069] Fields 54-58 store past operating data of the reference refrigeration cycle unit 200. In the following, the period from the installation of the reference refrigeration cycle unit 200 to the present is referred to as the reference installation period T. r That's what they say.

[0070] Field 54 is the reference device operating time T, which is the cumulative operating time since the installation of the reference refrigeration cycle unit 200. rc This reference device operating time T is stored. rc This refers to the total time during which power is supplied to the system control unit 209 and an instruction to operate is issued to the reference refrigeration cycle unit 200 from a remote controller or the like held by the user.

[0071] Reference device operating time T rc This is the sum of the thermo-on time and thermo-off time. Thermo-on refers to the state in which the system control unit 209 operates the compressor motor 211m to provide air conditioning because the target room temperature is deviating from the target temperature. Thermo-off refers to the state in which the system control unit 209 stops the compressor motor 211m to stop air conditioning because the target room temperature is close to the target temperature.

[0072] Reference device operating time T rc This does not include the time when power is not supplied to the system control unit 209, or the time when power is supplied to the system control unit 209 but the user has not issued an instruction to operate the reference refrigeration cycle unit 200. Therefore, the reference unit operating time T rc This refers to the reference installation period T. r It is shorter than that.

[0073]

number

[0074] In field 55, there is stored a reference actuator operation time T, which is the cumulative operation time of the compressor motor 211m as the reference actuator. ra This reference actuator operation time T ra means the cumulative value of the thermo-on time since the installation of the reference refrigeration cycle device 200. Therefore, the reference actuator operation time T ra is shorter than the reference device operation time T rc .

[0075]

Number

[0076] In field 56, there is stored a reference device operation probability P of the reference refrigeration cycle device 200. rc This reference device operation probability P rc is the ratio of the reference device operation time T r to the reference installation period T s rc ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​In field 58, the reference operation time ratio R of the reference refrigeration cycle device 200 is stored. rac The reference operation time ratio R rac is the ratio of the operation time of the compressor motor 211m, which is the reference actuator, to that of the reference refrigeration cycle device 200 on which it is mounted. The reference operation time ratio R rac is defined as the ratio of the reference actuator operation time T rc to the reference device operation time T ra The reference operation time ratio R rac is expressed by the following formula.

[0081]

Equation

[0082] As will be described later, in the estimation process performed by the estimation unit 18, only a part of fields 54 to 58 is used. The fields used differ depending on the type of estimation formula. Therefore, the table 50 can be configured to have only a part of fields 54 to 58.

[0083] As shown in FIG. 5, the table 50 further has fields 59 to 66. In fields 59 to 62, information such as specifications regarding the hardware or control of the reference refrigeration cycle device 200 is stored.

[0084] In field 59, the model number of the reference refrigeration cycle device 200 is stored. In field 60, the number of heat source units 210 included in the reference refrigeration cycle device 200 is stored. In field 61, the number of utilization units 220 included in the reference refrigeration cycle device 200 is stored. In field 62, the control specifications of the reference refrigeration cycle device 200 are stored. The control specifications may include, for example, the following: - Whether rotation control is performed when the reference refrigeration cycle device 200 includes a plurality of heat source units 210, - When the heat source unit 210 includes multiple compressor motors 211m, whether or not to control the multiple compressor motors 211m individually. - What is the target demand value in demand control?

[0085] Fields 63-65 store information about the building where the reference refrigeration cycle unit 200 is installed. Field 63 stores the building's business use in code. The business use of a building is, for example, an office, school, hospital, nursing home, etc. Field 64 stores the building's age. Field 65 stores the region where the building is located in code. The region may be, for example, a country, administrative division, geographical division, etc.

[0086] Field 66 stores information regarding the load trend of the reference refrigeration cycle unit 200. Specifically, the target temperature set for the reference refrigeration cycle unit 200 is stored in the form of a three-tiered ranking: "high," "medium," and "low."

[0087] (5) Determining whether the target part needs to be replaced. (5-1) First stage: Input of the first and fourth information of the target refrigeration cycle device 100. As shown in Figure 1, a service person from the manufacturer of the target refrigeration cycle unit 100 brings a mobile terminal 10 to the installation site of the target refrigeration cycle unit 100 and connects the mobile terminal 10 to the network 20. The service person then obtains the first information from the customer who purchased the target refrigeration cycle unit 100. The first information is the target installation period T. t This refers to the item itself or information for calculating it. In this embodiment, the first information is the target installation period T of the target refrigeration cycle device 100. t That is it. Next, the service person will determine the target installation period T of the target refrigeration cycle device 100. t This is input from the first input unit 11 of the mobile terminal 10.

[0088] Alternatively, the first information may be attached to the target refrigeration cycle device 100 as a label or marking. In this case, the service person may input the first information read from the label or marking into the first input unit 11 of the mobile terminal 10. Alternatively, the first information may be stored in the system control unit 109 of the target refrigeration cycle device 100. In this case, the service person may first connect the mobile terminal 10 to the target refrigeration cycle device 100, then input a command to acquire the first information into the first input unit 11 of the mobile terminal 10, and then the second input unit 12 may receive the first information from the system control unit 109 of the target refrigeration cycle device 100.

[0089] Next, the service person investigates the product and usage status of the target refrigeration cycle unit 100 and inputs the fourth information regarding the target refrigeration cycle unit 100 into the first input unit 11. The fourth information is information used to filter the data of a large number of reference refrigeration cycle units 200. The fourth information is attribute information of the target refrigeration cycle unit 100 or the reference refrigeration cycle unit 200. The fourth information of the target refrigeration cycle unit 100 that the service person inputs corresponds to fields 59 to 62 of table 50 for the reference refrigeration cycle unit 200.

[0090] Specifically, the fourth piece of information about the target refrigeration cycle device 100 that the service person inputs into the first input unit 11 includes the model number of the target refrigeration cycle device 100 (corresponding to field 59), the number of heat source units 110 of the target refrigeration cycle device 100 (corresponding to field 60), the number of user units 120 of the target refrigeration cycle device 100 (corresponding to field 61), the control specifications of the target refrigeration cycle device 100 (corresponding to field 62), the business use of the building where the target refrigeration cycle device 100 is installed (corresponding to field 63), the age of the building (corresponding to field 64), the region where the target refrigeration cycle device 100 is installed (corresponding to field 65), and the usage status of the target refrigeration cycle device 100 (field 66).

[0091] (5-2) Second stage: Transfer of Table 50 The mobile terminal 10 instructs the server 30 to transfer the contents of table 50 stored in database 31 via network 20. The contents of table 50 are received by the acquisition unit 14.

[0092] (5-3) Third stage: Filtering The filter unit 15 extracts only the information useful for determining whether the target parts of the target refrigeration cycle device 100 need to be replaced from the contents of the table 50 received by the acquisition unit 14. Useful information refers to information about a reference refrigeration cycle device 200 that is similar to the target refrigeration cycle device 100 in terms of design specifications and operating environment. The filter unit 15 extracts only records that have the same or similar content as the fourth information of the target refrigeration cycle device 100 input from the first input unit 11 and outputs them to the subsequent expansion unit 16. The fourth information of the target refrigeration cycle device 100 includes information such as the model number, the number of heat source units 110, the number of utilization units 120, control specifications, building use, building age, region, and usage status, and corresponds to fields 59 to 66 of the table 50 of the reference refrigeration cycle device 200. The filter unit 15 blocks records of the reference refrigeration cycle device 200 that contain fourth information that differs from the content of the fourth information of the target refrigeration cycle device 100.

[0093] The information referenced for filtering does not need to include all of fields 59-66. The filter unit 15 can also perform filtering using only a portion of fields 59-66.

[0094] (5-4) Stage 4: Deployment of the simplified Table 70 The expansion unit 16 is a storage unit for expanding the output of the filter unit 15 into a simplified table 70. Figure 6 shows an example of the simplified table 70 expanded in the expansion unit 16. The information contained in this simplified table 70 is limited to records where the building use (field 63) is "office" and the region (field 65) is "Japan".

[0095] (5-5) Stage 5: Data aggregation The aggregation unit 17 in Figure 1 aggregates the numerical values ​​of multiple records contained in the simplified table 70, which is the output of the expansion unit 16, into a single value. The aggregated value is, for example, the average value. Figure 7 shows an example of the output of the aggregation unit 17. Here, the field 54 (reference device operating time T) of the simplified table 70 is included. rc ), Field 55 (Reference actuator operating time T) ra ), Field 56 (Reference device operating probability P rc ), Field 57 (Reference actuator operating probability P ra ), Field 58 (Reference operating time ratio R rac As aggregate values ​​of ),

[0096]

number

[0097] It includes.

[0098] As will be described later, only a portion of these aggregated values ​​are used in the estimation process performed by the estimation unit 18. Therefore, the aggregation unit 17 may output only a portion of the aggregated values ​​shown in Figure 7.

[0099] (5-6) Stage 6: Estimation Finally, the estimation unit 18 determines the operating time T of the target actuator of the target component of the target refrigeration cycle device 100. ta The operating time of the target actuator T is estimated and presented to the service person by the output unit 13. ta The estimated value is calculated based on one of the following estimation formulas.

[0100] (5-6-1) First estimation formula Target installation period T t , and the reference actuator operating probability P ra If aggregated values ​​are available, the estimation unit 18 calculates the target actuator operating time T according to the first estimation formula shown below. ta An estimate can be obtained.

[0101] [First estimation formula]

[0102]

number

[0103] Note that the reference actuator operating time T ra Aggregated values, and reference installation period T r If available, the estimation unit 18 calculates the reference actuator operating probability P ra The aggregated value can also be obtained using the first approximation formula shown below.

[0104] [First approximation formula]

[0105]

number

[0106] (5-6-2) Second estimation formula Target installation period T t , Reference device operating probability P rc The aggregated value and the reference operating time ratio R rac If aggregated values ​​are available, the estimation unit 18 calculates the target actuator operating time T according to the second estimation formula shown below. ta An estimate can be obtained.

[0107] [Second estimation formula]

[0108]

number

[0109] Note that the operating probability P of the reference actuator ra , Reference device operating probability P rc Reference actuator operating time T ra Reference device operating time T rc If such as the above are available, the estimation unit 18 will use the reference operating time ratio R racThe aggregated value can also be obtained using the first approximation formula mentioned above, as well as the second and third approximation formulas shown below.

[0110] [Second approximation formula]

[0111]

number

[0112] [Third Approximation Formula]

[0113]

number

[0114] (5-7) Stage 7: Determining whether replacement is necessary The mobile device 10 records the target actuator operating time T ta The output unit 13 displays the estimated value to the service person. The service person compares this estimated value with the replacement time S described in the maintenance manual and determines whether or not the compressor 111, which is the target part, needs to be replaced.

[0115] (6) Characteristics (6-1) The maintenance system 90 determines whether replacement is necessary based on the operating time T of the target actuator. ta When obtaining this, the target installation period T is the period from the installation of the target refrigeration cycle device 100 to the present. t The operating time T of the target actuator remains unchanged. ta Rather than treating it as such, by taking into account the data of the reference refrigeration cycle device 200, the target installation period T t A period shorter than the operating time T of the target actuator ta It can be treated as such. Therefore, the maintenance system 90 can prevent service personnel from replacing target parts with new ones that still have an excessive amount of product life remaining.

[0116] (6-2) The second information, or the information used to derive the second information, is acquired by the acquisition unit 14 via communication. Therefore, the target actuator operating time T ta The estimation unit 18 can utilize the second piece of information when making its estimation.

[0117] (6-3) The maintenance system 90 can extract information about a reference refrigeration cycle device 200 from a large amount of second information about the reference refrigeration cycle device 200, specifically information whose fourth information is similar to the fourth information of the target refrigeration cycle device 100. The fourth information can include hardware configuration, control specifications, and the business use of the building. If such similarity is ensured between the target refrigeration cycle device 100 and the reference refrigeration cycle device 200, the target device operation probability P can be determined. tc and reference device operating probability P rc During this period, the operating probability P of the target actuator. ta and the reference actuator operating probability P ra During the period, or the target operating time ratio R tac and reference operating time ratio R rac An approximation can be expected between them. Therefore, the estimation unit can estimate the target actuator operating time T with high accuracy. ta It is possible to estimate this.

[0118] (7) Variant Modifications of the first embodiment described above are described below.

[0119] (7-1) First modified example (variation of the first information) In the above embodiment, the first information is the target installation period T of the target refrigeration cycle device 100. t That is it. Instead, the first piece of information is the target installation period T t Not the same thing, but the target installation period T t This information may be used to calculate [something].

[0120] In the first stage of determining whether the target part needs to be replaced, a service person from the manufacturer of the target refrigeration cycle device 100 may input any of the following information as first information into the first input unit 11.

[0121] • "Time": The manufacturing date, installation date, delivery date, purchase date of the target refrigeration cycle device 100, or the date of the last replacement of the target part in the target refrigeration cycle device 100. Or information related to them (e.g., classification codes).

[0122] • "Period": The manufacturing date, installation date, delivery date, or purchase date of the target refrigeration cycle device 100, or the period from the last replacement date of the target part in the target refrigeration cycle device 100 to the present, or information related thereto (e.g., classification code).

[0123] • "Delivery destination information": Information used to identify the delivery destination of the target refrigeration cycle unit 100.

[0124] Based on the information received as first information, the mobile terminal 10 determines the target installation period T t The target installation period T of the target refrigeration cycle device 100 is calculated by, for example, storing a purchase history table in the server 30 and searching the purchase history table for the entered delivery information. t You can obtain it.

[0125] According to this configuration, the first piece of information includes either a date, a period, or delivery destination information. If a date or period is used, the target installation period T of the target refrigeration cycle device 100. t It is easy to calculate the target installation period T of the target refrigeration cycle device 100. The delivery destination information can be used to refer to the purchase history table of the delivery destination, thereby making it easy to calculate the target installation period T of the target refrigeration cycle device 100. t This can be derived.

[0126] (7-2) Second variation (variation of the second information) In the above embodiment, the table 50 stored in the database 31 of the server 30 contains the reference device operating time T for a number of reference refrigeration cycle devices 200. rc Reference actuator operating time T ra, Reference actuator operating probability P ra , Reference device operating probability P rc , Reference operating time ratio R rac This includes at least a portion of the above. Alternatively, Table 50 contains other values, where the target actuator operating time T is... ta It may include numerical values ​​that can be used to estimate the value.

[0127] In this configuration, the second piece of information is information related to the operating time of the reference refrigeration cycle device 200 or the reference actuator. Therefore, by using the first and second pieces of information, the estimation unit 18 calculates the target actuator operating time T. ta It is possible to estimate this.

[0128] (7-3) Third variation (Third information and third estimation formula) In the above embodiment, the target actuator operating time T ta The estimated value is calculated using either the first or second estimation formula. Alternatively, the operating time T of the target actuator can be used. ta The estimated value may also be obtained using other estimation formulas.

[0129] For example, estimation can be performed using the third estimation formula shown below.

[0130] [Third estimation formula]

[0131]

number

[0132] The values ​​used in the third estimation formula represent the target installation period T of the target refrigeration cycle device 100. t The target refrigeration cycle device 100 has an operating probability P. tc , and the reference operating time ratio R of the reference refrigeration cycle device 200 rac This is the aggregated value.

[0133] In this third estimation formula, the fourth approximation formula shown below is used.

[0134] [Fourth Approximation Formula]

[0135]

number

[0136] In the first stage, the service person obtains not only the first information but also the third information about the target refrigeration cycle device 100 from the customer who purchased the target refrigeration cycle device 100, and then inputs both the first and third information into the first input unit 11. The third information is the target device operation probability P of the target refrigeration cycle device 100. tc It is the thing itself or the information used to calculate it.

[0137] Subsequently, in the seventh stage, the estimation unit 18 calculates the target actuator operating time T based on the fourth estimation formula. ta We estimate this.

[0138] In this configuration, the maintenance system 90 receives first and third information from the service person. Therefore, the service person receives the target installation period T of the target refrigeration cycle device 100. t The target refrigeration cycle device 100 has an operating probability P. tc , and the reference operating time ratio R of the reference refrigeration cycle device 200 rac When aggregate values ​​are available, estimations can be performed using them.

[0139] (7-4) Fourth variation (Fourth estimation formula subject to the use of fourth information) In the above embodiment, the target actuator operating time T ta The estimated value is calculated using either the first or second estimation formula. Alternatively, the operating time T of the target actuator can be used. ta The estimated value may also be obtained by the fourth estimation formula shown below.

[0140] [Fourth estimation formula]

[0141]

number

[0142] However, this estimation formula uses the target installation period T as the fourth piece of information. t and reference installation period T r The use of [this] is a condition.

[0143] Figure 8 shows a table 50 stored in the database 31 in this modified configuration. Unlike the embodiment described above, this table 50 has a field 67. The field 67 contains the reference installation period T r It is stored. Reference installation period T r This refers to the period since the installation of the reference refrigeration cycle unit 200.

[0144] In the first stage, the service person, based on the first information obtained from the customer who purchased the target refrigeration cycle unit 100, determines the target installation period T t The value can be obtained. In this modified example, the target installation period T t The value of this value is also used as fourth information.

[0145] In the third stage, the service person obtained the target installation period T t The value is used to filter field 67 of table 50. The filter unit 15 is for the target installation period T t Filtering is performed using this method.

[0146] In the fourth stage, the output of the filter unit 15 is expanded in the expansion unit 16 as a simplified table 70. The simplified table 70 contains the reference installation period T r (Field 67) The value of the target installation period T t Only records close to the value T exist. For example, the simplified table 70 contains records for the target installation period T. t Reference installation period T with a difference of 1 year or less from the value r Only records with the specified value are extracted.

[0147] In the fifth stage, the aggregation unit 17 aggregates the fields 55 (reference actuator operating time T) of multiple records included in the simplified table 70 which is the output of the expansion unit 16. ra Aggregate the values ​​of ).

[0148] In the sixth stage, the estimation unit 18 determines the operating time T of the target actuator of the target component of the target refrigeration cycle device 100. ta As an estimated value, the reference actuator operating time T is defined in the fourth estimation formula. ra Use the aggregated value.

[0149] Finally, in the seventh stage, the service person will receive the target actuator operating time T presented in the output unit 13. ta The estimated value is compared with the replacement time S specified in the maintenance manual to determine whether the compressor 111, which is the component in question, needs to be replaced.

[0150] (7-5) Fifth variation (variation of information from the fourth) In the above-described embodiment, the filter unit 15 filtered the information in table 50 using attribute information, which is the fourth information of the target refrigeration cycle device 100. The attribute information of the target refrigeration cycle device 100 corresponds to fields 59 to 66 of table 50, and is at least one of the following: model number, number of heat source units 110, number of utilization units 120, control specifications, building use, building age, region, and usage status.

[0151] Alternatively, the information used by the filter unit 15 for filtering may be information related to these attribute information (for example, a classification code).

[0152] Alternatively, among these classification information, the number of heat source units 110 (corresponding to field 60) and the business use of the building (corresponding to field 63) may be used in the filtering of the filter unit 15.

[0153] In this configuration, the fourth piece of information includes, for example, the business use of the building, such as a hospital, office, factory, or restaurant, and the number of heat source units. Therefore, data for a reference refrigeration cycle device 200 that is used in a similar manner to the target refrigeration cycle device 100 can be obtained as the second piece of information.

[0154] (7-6) Sixth Modification (Variations of Target Parts and Target Actuators) In the above embodiment, the component to be replaced is the compressor 111, and the actuator to be replaced is the compressor motor 111m. Alternatively, the component to be replaced may be the four-way switching valve 112, the heat source fan 114, the heat source expansion valve 115, or the utilization fan 124. Furthermore, the actuator to be replaced may be the compressor motor 111m, the four-way switching valve solenoid 112s, the heat source fan motor 114m, the heat source expansion valve motor 115m, or the utilization fan motor 124m.

[0155] (7-7) Seventh Modification (Variations in Aggregation Method) In the above-described embodiment, the aggregation unit 17 calculates the average value when aggregating the numerical values ​​of multiple records into a single value. Alternatively, the aggregation unit 17 may output, for example, a weighted average value, median, mode, maximum value, or minimum value.

[0156] (7-8) Eighth variation (variation of output content) In the above embodiment, the output unit 13 is set to the target actuator operating time T ta The service person is presented with this. Alternatively, the estimation unit 18 determines the target actuator operating time T ta The need to replace the compressor 111, which is a target component of the target refrigeration cycle device 100, may be determined by comparing the estimated value with the replacement time S described in the maintenance manual. The output unit 13 is the target actuator operating time T ta Furthermore, a message suggesting that the compressor 111, the component in question, should be replaced may be presented to the service personnel.

[0157] With this configuration, the output unit 13 suggests replacement to the service person if the target part needs to be replaced. Therefore, the burden on the service person in deciding whether or not the target part needs to be replaced can be reduced.

[0158] (7-9) Variation 9 (Variations in functional division) In the above-described embodiment, the mobile terminal 10 has a filter unit 15, a deployment unit 16, and an aggregation unit 17. Alternatively, at least a portion of the filter unit 15, the deployment unit 16, and the aggregation unit 17 may be mounted on the server 30. In this case, the amount of information communicated between the server 30 and the mobile terminal 10 can be reduced.

[0159] (7-10) 10th Modification (Variations of Input Device and Input Method) In the embodiment described above, the first input unit 11 that receives input from the service person is a keyboard. Alternatively, the first input unit 11 may be a touch panel, mouse, microphone, barcode reader, QR code (registered trademark) reader, image scanner, contactless card reader, RFID device, etc.

[0160] In the above-described embodiment, the inputs that were handled by the first input unit 11 and the second input unit 12 may be performed by either the first input unit 11 or the second input unit 12, and the other may be removed.

[0161] (7-11) 11th Modification (Variations of Output Device and Output Method) In the embodiment described above, the output unit 13 that outputs information to the service person is a display. Alternatively, the output unit 13 may be an LED indicator or a speaker. Or, the output unit 13 may be a device that outputs information in a portable manner, such as a printer, plotter, PDF file generator, URL generator, QR code (registered trademark) generator, email generator, or text message generator.

[0162] <Second Embodiment> (1) Composition Figure 9 shows the configuration of the maintenance system 90 of the second embodiment. The maintenance system 90 differs from the first embodiment in that it does not have a network 20 and a server 30. The maintenance system 90 is configured as a mobile terminal 10.

[0163] Unlike the first embodiment, the mobile terminal 10 does not have an acquisition unit 14, but has a database 19. The database 19 is configured as a storage unit that stores data on past replacements of the reference refrigeration cycle device 200, similar to the database 31 of the server 30 in the first embodiment. The database 19 stores second information or information that serves as the basis for deriving second information in the form of a table 50. The contents of the table 50 are the same as those described with reference to Figures 4 and 5 in the first embodiment.

[0164] (2) Characteristics In this configuration, the second information or the source information for deriving the second information is stored in the database 19 of the mobile terminal 10. Therefore, the target actuator operating time T ta When the estimation unit 18 makes an estimation, it can freely use the second information by accessing the database 19.

[0165] (3) Variant (3-1) First variation In the above-described embodiment, the second information or the source information for deriving the second information stored in the database 19 is stored in the form of a table 50 with the same content as described with reference to Figures 4 and 5 in relation to the first embodiment. Alternatively, the second information or the source information for deriving the second information stored in the database 19 may be a table 50 that has been statistically processed to reduce its data capacity. With this configuration, the second information or the source information for deriving the second information can be stored within the limited storage capacity of the mobile terminal 10.

[0166] For example, database 19 may store second information having the format of aggregated values ​​shown in Figure 7, which is generated by performing an aggregation operation on all records of table 50.

[0167] Alternatively, all records may be classified into several categories using the attribute information of the target refrigeration cycle device 100 located in fields 59 to 62 of table 50, and then second information having the format of aggregated values ​​as shown in Figure 7 may be stored for each category. For example, multiple categories such as "hospital," "office," and "residential" may be set based on the business use of the building stored in field 63, and different aggregated values ​​may be set for each business use and stored as second information in database 19.

[0168] (3-2) Second variation At least some of the modifications of the first embodiment may be applied to this embodiment.

[0169] <Third Embodiment> (1) Composition Figure 10 shows the configuration of the maintenance system 90 of the third embodiment. The maintenance system 90 differs from the first embodiment in that, in addition to the network 20 and server 30, it has a database 19 installed on the mobile terminal 10. The maintenance system 90 has the same mobile terminal 10, network 20 and server 30 as in the first embodiment. The configuration of the database 19 is the same as in the second embodiment.

[0170] (2) Characteristics In this configuration, the filter unit 15, the expansion unit 16, and the aggregation unit 17 generate second information based on the information acquired by the acquisition unit 14 from the server 30 via communication and the information stored in the database 19 of the mobile terminal 10. Therefore, the estimation unit 18 calculates the target actuator operating time T. ta The generated second piece of information can be used when estimating this.

[0171] (3) Variant At least a part of a modification example of the first embodiment or the second embodiment may be applied to the present embodiment.

[0172] <Connection> As described above, the embodiments of the present disclosure have been described. It will be understood that various changes in form and details are possible without departing from the spirit and scope of the present disclosure described in the claims.

Description of Reference Numerals

[0173] 10: Mobile terminal (terminal) 11: First input unit (input unit) 12: Second input unit (input unit) 13: Output unit 14: Acquisition unit 15: Filter unit (second information generation unit) 16: Expansion unit (second information generation unit) 17: Aggregation unit (second information generation unit) 18: Estimation unit 19: Database (storage unit) 20: Network 30: Server 31: Database 32: Communication unit 50: Table 90: Maintenance system 100: Target refrigeration cycle device 109: System control unit 111: Compressor (target component) 111m: Compressor motor (target actuator) 200: Reference refrigeration cycle device 209: System control unit 211: Compressor (reference component) 211m: Compressor motor (reference actuator) P ra : Reference actuator operation probability P ta : Target actuator operation probability P rc : Reference device operation probability P tc: Probability of operation of the target device R rac : Reference operating time ratio R tac : Target operating time ratio T r : Reference installation period T t : Applicable installation period T ra : Reference actuator operating time T ta :Target actuator operating time T rc : Reference device operating time T tc : Operating time of the target device [Prior art documents] [Patent Documents]

[0174] [Patent Document 1] Patent No. 6401614

Claims

1. A maintenance system (90) that assists in the replacement of a target component (111) installed in one target refrigeration cycle unit (100), The target installation period (T) is the period since the installation of the target refrigeration cycle device (100). t An input unit (11, 12) that accepts input of first information concerning ), Based on the first and second information, the operating time of the target actuator (T ta An estimation unit (18) that estimates the operating time of the target actuator (T ta ) is the cumulative operating time of the target actuator mounted on the target component, and the second information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra This relates to the operating probability (P) of the reference actuator. ra ) is the operating probability of a reference actuator (211m) included in a reference component (211) mounted on multiple reference refrigeration cycle devices (200), and the operating time of the reference actuator (T ra The estimation unit (18) is the cumulative operating time of the reference actuator (211m) included in the reference component (211) mounted on a plurality of the reference refrigeration cycle devices (200), The estimated operating time (T) of the target actuator is determined by the estimation unit. ta An output unit (13) that outputs ) and A maintenance system (90) equipped with this system.

2. An acquisition unit (14) acquires the second information via a network (20). Furthermore, The maintenance system according to claim 1.

3. The memory unit (19) in which the second information is stored, Furthermore, The maintenance system according to claim 1.

4. Acquisition unit (14), Memory unit (19), A second information generation unit (15, 16, 17) generates the second information based on the information acquired by the acquisition unit via the network (20) and the information stored in the storage unit, Furthermore, The maintenance system according to claim 1.

5. The output unit further outputs a proposal for replacement of a target part determined according to the target actuator operation time (T ta ). The maintenance system according to claim 1.

6. The first piece of information mentioned above is, Information regarding the manufacturing date, installation date, delivery date, purchase date of the target refrigeration cycle device (100), or the last replacement date of the target component in the target refrigeration cycle device (100), Information relating to the manufacturing date, installation date, delivery date, purchase date of the target refrigeration cycle device (100), or the period from the last replacement date of the target component in the target refrigeration cycle device (100) to the present, or Information for identifying the delivery destination of the aforementioned refrigeration cycle device (100), Including at least one of the following: A maintenance system according to any one of claims 1 to 5.

7. The second information mentioned above is, The operating time (T) of the aforementioned reference actuator ra ), The cumulative operating time of the multiple reference refrigeration cycle devices (200) is the reference device operating time (T rc ), The operating probability (P) of the aforementioned reference actuator ra ), The operating probability of the reference refrigeration cycle devices (200) is the operating probability of the multiple reference refrigeration cycle devices (200) (P rc ), or, The operating time (T) of each of the multiple reference actuators (211m) ra ) and the operating time of the reference device (T rc The reference operating time ratio (R) is the ratio to ). rac ), Or, The mean, weighted mean, median, mode, maximum, or minimum of those values, Including at least one of the following: A maintenance system according to any one of claims 1 to 5.

8. The input unit receives the target device operation probability (P) of the target refrigeration cycle device (100). tc We will continue to accept input of third-party information regarding ) The second information mentioned above is, The operating time (T) of each of the multiple reference actuators (211m) ra ) and reference device operating time (T rc ) is the ratio to the reference actuator operating time (T ra ) is the cumulative operating time of the reference actuator (211m) included in the reference component (211) mounted on a plurality of the reference refrigeration cycle devices (200), and the reference device operating time (T rc ) is the cumulative operating time of the multiple reference refrigeration cycle devices (200), which is the reference operating time ratio (R rac ), Or, The mean, weighted mean, median, mode, maximum, or minimum of those values, Includes, Based on the first information, the second information, and the third information, the estimation unit calculates the operating time (T) of the target actuator. ta ) to estimate, A maintenance system according to any one of claims 1 to 5.

9. The input unit further receives the fourth piece of information, The fourth information is the second information, of which the estimation unit determines the target actuator operating time (T ta Used to extract what is used to estimate ), A maintenance system according to any one of claims 1 to 5.

10. Retro 4 information is, At a minimum, information regarding the hardware configuration, including the model number and the number of heat source units, Information regarding control specifications, Information regarding the business use of the building where it is located. Information regarding the age of the aforementioned building, Information regarding the area where it is installed, or Information regarding the set target temperature, Including at least one of the following: The maintenance system according to claim 9.

11. The fourth piece of information includes the business use and the number of heat source units, The maintenance system according to claim 10.

12. A method for assisting in the replacement of a target component (111) installed in one target refrigeration cycle device (100), The terminal (10) is the period since the installation of the target refrigeration cycle device (100) during the target installation period (T t We accept input of the first information regarding ) The terminal (10) determines the target actuator operating time (T) based on the first information and the second information. ta ) is estimated, and the operating time of the target actuator (T ta ) is the cumulative operating time of the target actuator mounted on the target component, and the second information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra This relates to the operating probability (P) of the reference actuator. ra ) is the operating probability of a reference actuator (211m) included in a reference component (211) mounted on multiple reference refrigeration cycle devices (200), and the operating time of the reference actuator (T ra ) is the cumulative operating time of the reference actuator (211m) included in the reference component (211) mounted on a plurality of the reference refrigeration cycle devices (200), The terminal (10) controls the operating time (T) of the target actuator. ta A method to output ).

13. A program that allows a terminal (10) to assist in replacing a target component (111) installed in one target refrigeration cycle device (100), The terminal (10) is defined as the period since the installation of the target refrigeration cycle device (100), which is the target installation period (T t It functions as an input unit (12) for receiving input of first information regarding ), The terminal (10) determines the target actuator operating time (T) based on the first information and the second information. ta It functions as an estimation unit (18) that estimates the operating time (T) of the target actuator, and ta ) is the cumulative operating time of the target actuator mounted on the target component, and the second information is the reference actuator operating probability (P ra ) or reference actuator operating time (T ra This relates to the operating probability (P) of the reference actuator. ra ) is the operating probability of a reference actuator (211m) included in a reference component (211) mounted on multiple reference refrigeration cycle devices (200), and the operating time of the reference actuator (T ra ) is the cumulative operating time of the reference actuator (211m) included in the reference component (211) mounted on a plurality of the reference refrigeration cycle devices (200), The terminal (10) is determined by the estimation unit's estimated operating time (T ta This unit functions as an output unit (13) that outputs the following: program.

Images