JP2006318357A - Component maintenance supporting apparatus, component maintenance supporting system and component maintenance supporting program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately support maintenance of components by taking into consideration not only operating information after time of starting of measurement but also the operating information before the time of start of measurement even when measurement of the operating information of the component begins from the start of measurement time which is after the start of use of the component and measurement is not carried out on the operating information before the time of start of measurement. <P>SOLUTION: A component maintenance supporting apparatus 30 is provided with an acquiring means 32, a measurement accumulated value calculating means 33, a relational expression predicting means 34 and a supporting information producing means 35, and supports maintenance of components 51, 53, 61, 63, 71, 72 and 77 composing an air conditioner 10. The acquiring means 32 acquires operating information on the component on which measurement is carried out from the start of measurement which is after the start of use up to the present. The measurement accumulated value calculating means 33 calculates an accumulated value of the operating time or the number of times of the component from the measurement starting time to the present based on the measurement information. The relational expression predicting means 34 predicts the relational expression between the passage of time from the start of use and the accumulated value based on the accumulated value. The support information producing means 35 produces information to support the maintenance of the component based on the relational expression. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a parts maintenance support device, a parts maintenance support system, and a parts maintenance support program that support maintenance of parts constituting equipment.

2. Description of the Related Art Conventionally, systems that measure and use part operation information have been proposed to determine when to perform maintenance work such as inspection and replacement of parts constituting equipment. Patent Document 1 discloses a maintenance system for devices having a life-span component, and adds the predicted number of operations in the future to the cumulative number of operations of the component up to the current time, and compares it with a predetermined service life Thus, it is determined whether or not the lifetime is reached within a predetermined period. Patent Document 2 discloses a centralized control device for a plurality of electrical devices, collects cumulative values of operating times of each electrical device, and collects the accumulated values of operating time and the replacement cycle of each electrical device. Is displayed to determine the time for replacement, cleaning, and inspection.
JP-A-5-324953 JP 2003-289585 A

  However, the introduction of such a maintenance system and the start of measurement of component operation information is not always the same as the installation of equipment and the use of equipment. Often after some time later. This is because, when many users feel the need for equipment, they first install only the equipment and then consider introducing a maintenance system as necessary. In such a case, the operation information of the parts before starting measurement cannot be taken into account, and as a result, it may be difficult to properly maintain the parts.

  The object of the present invention is to start the operation after the measurement start time even when the measurement of the operation information of the part is started from the measurement start time after the use start time of the part and the operation information before the measurement start time is not measured. An object is to provide a parts maintenance support apparatus, a parts maintenance support system, and a parts maintenance support program that can appropriately support maintenance of parts in consideration of not only information but also operation information before the measurement start time.

  A part maintenance support apparatus according to a first aspect of the present invention is a part maintenance support apparatus that supports maintenance of parts constituting equipment, and includes an acquisition means, a measured cumulative value calculation means, a relational expression prediction means, and support information. A generation unit and an output unit are provided. The acquisition unit acquires the operation information of the parts measured from the use start time of the parts and the measurement start time after the use start time to the current time. The measurement cumulative value calculation means calculates a measurement cumulative value that is a cumulative value of the operation time or the number of operations of the part from the measurement start time to the current time based on the operation information. The relational expression predicting unit predicts a relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations based on the use start time and the measured cumulative value. The support information generation means generates component maintenance support information that is information for supporting component maintenance based on the relational expression. The output means outputs part maintenance support information.

  This parts maintenance support device uses the part usage start time and the part operation information measured from the measurement start time after the part use start time. Predict the relational expression with the cumulative value of the operation time or the number of operations. As a result, the component maintenance support device starts measurement even when measurement of component operation information starts from a measurement start time after the component use start time and operation information before the measurement start time is not measured. Not only the operation information after the time but also the operation information before the measurement start time is taken into consideration, so that the maintenance of the parts can be supported appropriately.

The component maintenance support device according to the second invention is the component maintenance support device according to the first invention, wherein the component maintenance support information includes the measured cumulative value and the operation time or operation from the use start time to the measurement start time. The initial cumulative value that is the cumulative value of the number of times is included.
This parts maintenance support device is a cumulative value of the operation time or the number of operation times of the part from the measurement start time to the current time, and the accumulation of the operation time or operation number of the part from the use start time to the measurement start time. The initial cumulative value that is a value is output. Thereby, this parts maintenance support device can consider not only the operation information after the measurement start time but also the operation information before the measurement start time. In particular, in this parts maintenance support device, a measurement cumulative value that is an actual measurement value and an initial cumulative value that is a prediction value are output separately, so that a user who makes a decision on maintenance by looking at the output result Make convincing decisions about parts maintenance.

  In this specification, the term “user” includes not only end users who directly use equipment but also services that use equipment to provide services such as maintenance of equipment to end users. The provider is also included.

The component maintenance support apparatus according to the third aspect of the present invention is the component maintenance support apparatus according to the first or second aspect of the present invention, wherein the acquisition means further acquires a service limit value that is the service life or the service life of the part. . The support information generating means generates part maintenance support information based on the service life limit value.
The component maintenance support apparatus outputs component maintenance support information generated based on a service life limit value that is the service life or the service life of a component. Thereby, this component maintenance support apparatus can support the maintenance of components more appropriately in consideration of the lifetime of the components.

A component maintenance support apparatus according to a fourth aspect of the present invention is the component maintenance support apparatus according to the third aspect of the present invention, wherein the component maintenance support information includes a predicted value of a component replacement time.
This parts maintenance support device outputs a predicted value of the replacement time of parts. Thereby, this component maintenance support apparatus can predict the replacement time of components, and can support the maintenance of components more appropriately.

A parts maintenance support apparatus according to a fifth aspect of the invention is the parts maintenance support apparatus according to any of the first to fourth aspects of the invention, wherein the relational expression predicting means starts using the accumulated value of the operation time or the number of operations. The relational expression is predicted on the assumption that it is proportional to the elapsed time from the time.
This component maintenance support apparatus assumes that the cumulative value of the operation time or the number of operations of a component is proportional to the elapsed time from the use start time. Thereby, this component maintenance support apparatus can easily predict the relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations of the component.

A component maintenance support apparatus according to a sixth aspect of the present invention is the component maintenance support apparatus according to any one of the first to fifth aspects, wherein the output means has a predetermined lower limit for the period from the measurement start time to the current time. If it is shorter than the value, no part maintenance support information is output.
In general, when the measurement period of the component operation information is shorter than a predetermined lower limit value, there is a high possibility that a certain level of accuracy cannot be ensured in the prediction of the relational expression. Therefore, the component maintenance support device can negatively affect the maintenance of the component by prohibiting the output of the component maintenance support information when the measurement period of the component operation information is shorter than the predetermined lower limit value. Output of information can be avoided.

A parts maintenance support apparatus according to a seventh aspect of the present invention is the parts maintenance support apparatus according to any one of the first to sixth aspects, wherein the output means has a predetermined upper limit for the period from the measurement start time to the current time. When the value is exceeded, the part maintenance support information generated based on the relational expression predicted when this period is equal to the predetermined upper limit value is output.
In general, the accuracy of the prediction of the relational expression is improved as the measurement period of the component operation information is longer, but reaches a limit when a predetermined upper limit value is exceeded. Therefore, this component maintenance support device is generated based on the relational expression predicted when the measurement period is equal to the predetermined upper limit value when the measurement period of the component operation information exceeds the predetermined upper limit value. By outputting the parts maintenance support information, unnecessary processing can be avoided and processing of the entire apparatus can be reduced.

  A component maintenance support system according to an eighth aspect of the present invention is a component maintenance support system that supports the maintenance of components constituting equipment, and includes a measuring device and a component maintenance support device. The measuring device continuously measures the operation information of the component from the measurement start time after the component use start time to the current time. The component maintenance support device is connected to the measurement device. The component maintenance support apparatus includes an acquisition unit, a measurement cumulative value calculation unit, a relational expression prediction unit, a support information generation unit, and an output unit. The acquisition unit acquires the use start time and operation information of the component. The measurement cumulative value calculation means calculates a measurement cumulative value that is a cumulative value of the operation time or the number of operations of the part from the measurement start time to the current time based on the operation information. The relational expression predicting unit predicts a relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations based on the use start time and the measured cumulative value. The support information generation means generates component maintenance support information that is information for supporting component maintenance based on the relational expression. The output means outputs part maintenance support information.

  This parts maintenance support system continuously measures part operation information from the measurement start time after the part use start time, and uses the part use start time based on the part use start time and the measured operation information. The relational expression between the elapsed time from the operation time and the cumulative value of the operation time or operation frequency of the part is predicted. As a result, this component maintenance support system starts measurement even when measurement of component operation information starts from a measurement start time after the component use start time and operation information before the measurement start time is not measured. Not only the operation information after the time but also the operation information before the measurement start time is taken into consideration, so that the maintenance of the parts can be supported appropriately.

  A part maintenance support program according to a ninth aspect of the invention is a part maintenance support program for supporting maintenance of parts constituting equipment, and includes an acquisition step, a measurement cumulative value calculation step, a relational expression prediction step, and support information. The computer executes the generation step and the output step. In the acquisition step, the operation information of the parts measured from the use start time of the parts and the measurement start time after the use start time to the current time is acquired. In the measurement cumulative value calculation step, a measurement cumulative value that is a cumulative value of the operation time or the number of operations of the part from the measurement start time to the current time is calculated based on the operation information. In the relational expression prediction step, a relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations is predicted based on the use start time and the measured cumulative value. In the support information generation step, component maintenance support information, which is information for supporting component maintenance, is generated based on the relational expression. In the output step, the parts maintenance support information is output.

  When this part maintenance support program is executed, the elapsed time from the part use start time is based on the part use start time and the part operation information measured from the measurement start time after the part use start time. A relational expression between the time and the cumulative value of the operation time or the number of operations of the parts is predicted. Therefore, this parts maintenance support program can measure the measurement start time even when the measurement of the part operation information is started from the measurement start time after the part use start time and the operation information before the measurement start time is not measured. Considering not only the subsequent operation information but also the operation information before the measurement start time, it is possible to appropriately support the maintenance of the parts.

  The component maintenance support apparatus according to the first aspect of the present invention is based on the component use start time and the component operation information measured from the measurement start time after the component use start time. A relational expression between the elapsed time and the cumulative value of the operation time or the number of operations of the component is predicted. As a result, the component maintenance support device starts measurement even when measurement of component operation information starts from a measurement start time after the component use start time and operation information before the measurement start time is not measured. Not only the operation information after the time but also the operation information before the measurement start time is taken into consideration, so that the maintenance of the parts can be supported appropriately.

  The component maintenance support device according to the second aspect of the present invention includes a measured cumulative value that is a cumulative value of the component operating time or the number of operations from the measurement start time to the current time, and a component operating time from the use start time to the measurement start time. Alternatively, an initial cumulative value that is a cumulative value of the number of operations is output. Thereby, this parts maintenance support device can consider not only the operation information after the measurement start time but also the operation information before the measurement start time. In particular, in this parts maintenance support device, a measurement cumulative value that is an actual measurement value and an initial cumulative value that is a prediction value are output separately, so that a user who makes a decision on maintenance by looking at the output result Make convincing decisions about parts maintenance.

The component maintenance support apparatus according to the third aspect of the invention outputs the component maintenance support information generated based on the service life limit value which is the service life or the service life of the component. Thereby, this component maintenance support apparatus can support the maintenance of components more appropriately in consideration of the lifetime of the components.
The component maintenance support apparatus according to the fourth aspect of the invention outputs a predicted value for component replacement timing. Thereby, this component maintenance support apparatus can predict the replacement time of components, and can support the maintenance of components more appropriately.

The component maintenance support apparatus according to the fifth aspect of the present invention assumes that the cumulative value of the operation time or the number of operations of the component is proportional to the elapsed time from the use start time. Thereby, this component maintenance support apparatus can easily predict the relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations of the component.
The component maintenance support apparatus according to the sixth aspect of the present invention has a negative effect on component maintenance by prohibiting output of the component maintenance support information when the measurement period of the component operation information is shorter than a predetermined lower limit. Can be avoided.

According to a seventh aspect of the present invention, when the measurement period of the component operation information exceeds a predetermined upper limit value, the component maintenance support apparatus is based on a relational expression predicted when the measurement period is equal to the predetermined upper limit value. By outputting the generated parts maintenance support information, unnecessary processing can be avoided and processing of the entire apparatus can be reduced.
The component maintenance support system according to the eighth aspect of the invention continuously measures component operation information from a measurement start time after the component use start time, and based on the component use start time and the measured operation information. A relational expression between the elapsed time from the use start time of the component and the accumulated value of the operation time or the operation count of the component is predicted. As a result, this component maintenance support system starts measurement even when measurement of component operation information starts from a measurement start time after the component use start time and operation information before the measurement start time is not measured. Not only the operation information after the time but also the operation information before the measurement start time is taken into consideration, so that the maintenance of the parts can be supported appropriately.

  When the part maintenance support program according to the ninth aspect of the invention is executed, the use of the part is based on the use start time of the part and the operation information of the part measured from the measurement start time after the use start time of the part. A relational expression between the elapsed time from the start time and the cumulative value of the operation time or the number of operations of the component is predicted. Therefore, this parts maintenance support program can measure the measurement start time even when the measurement of the part operation information is started from the measurement start time after the part use start time and the operation information before the measurement start time is not measured. Considering not only the subsequent operation information but also the operation information before the measurement start time, it is possible to appropriately support the maintenance of the parts.

<First Embodiment>
(Parts maintenance support system)
FIG. 1 shows a parts maintenance support system 1 that supports maintenance of parts 51, 53, 61, 63, 71, 72, and 77 (FIG. 2) constituting the air conditioner 10 according to the first embodiment.
The parts maintenance support system 1 is connected to the air conditioner 10 and includes a measuring device 20 that measures operation information of the parts 51, 53, 61, 63, 71, 72, and 77 constituting the air conditioner 10, and a measuring device 20. A component maintenance support device 30 that supports maintenance of the components 51, 53, 61, 63, 71, 72, 77 based on operation information that is connected and acquired from the measuring device 20, and a component maintenance support that is connected to the component maintenance support device 30. And a database 40 for storing data to be processed by the device 30.

(Air conditioner)
The configuration of the air conditioner 10 will be described with reference to FIG.
The air conditioner 10 cools or heats indoor air in which the indoor units 5 and 6 of the air conditioner 10 are installed by performing a vapor compression refrigeration cycle operation. The air conditioner 10 connects the outdoor unit 7, a plurality of indoor units 5 and 6 connected in parallel to the outdoor unit 7 (two in this embodiment), and the outdoor unit 7 and the indoor units 5 and 6. A liquid refrigerant communication pipe 8 and a gas refrigerant communication pipe 9 are provided.

[Indoor unit]
The indoor unit 5 is connected to the outdoor unit 7 via the liquid refrigerant communication pipe 8 and the gas refrigerant communication pipe 9. The indoor unit 5 includes an indoor expansion valve 51, an indoor heat exchanger 52, an indoor fan 53, and an indoor side control unit 54.
The indoor expansion valve 51 is an electric expansion valve and is connected to the liquid pipe side of the indoor heat exchanger 52. The indoor heat exchanger 52 functions as a refrigerant evaporator during cooling operation to cool indoor air, and functions as a refrigerant condenser during heating operation to heat indoor air. The indoor fan 53 sucks indoor air into the indoor unit 5 while adjusting the flow rate of air supplied to the indoor heat exchanger 52, and supplies the air after heat exchange to the room. The indoor side control unit 54 includes a microcomputer, a memory, and the like, and controls the operation of the indoor unit 5. Specifically, the indoor side control unit 54 transmits / receives a control signal to / from a remote controller (not shown) for operating the indoor unit 5 or to / from the outdoor unit 7, along with the operation of the indoor unit 5. The operation of the indoor expansion valve 51 and the indoor fan 53 that operate is controlled. Further, the indoor side control unit 54 continuously measures the operation information of the indoor expansion valve 51 and the indoor fan 53.

  The indoor unit 6 has the same configuration as the indoor unit 5. The elements of the indoor unit 6 to which the reference numeral 60 is assigned correspond to the elements of the indoor unit 5 that are assigned the 50th reference numeral, and the description of the indoor unit 6 is omitted.

〔Outdoor unit〕
The outdoor unit 7 is installed on the rooftop of a building where the indoor units 5 and 6 are installed, and is connected to the indoor units 5 and 6 via a liquid refrigerant communication pipe 8 and a gas refrigerant communication pipe 9. The outdoor unit 7 includes a compressor 71, a four-way switching valve 72, an outdoor heat exchanger 73, an accumulator 74, a liquid pipe side closing valve 75, a gas pipe side closing valve 76, an outdoor fan 77, And an outer control unit 78.
The compressor 71 is a variable capacity compressor driven by a motor 71a controlled by an inverter circuit. The four-way switching valve 72 is a valve for switching the direction in which the refrigerant flows. The four-way switching valve 72 is in a state indicated by a solid line during the cooling operation, and is in a state indicated by a broken line during the heating operation. The outdoor heat exchanger 73 functions as a refrigerant condenser during the cooling operation, and functions as a refrigerant evaporator during the heating operation. The outdoor heat exchanger 73 has a gas pipe connected to the four-way switching valve 72 and a liquid pipe connected to the liquid refrigerant communication pipe 8. The outdoor fan 77 sucks outdoor air into the outdoor unit 7 while adjusting the flow rate of air supplied to the outdoor heat exchanger 73, and discharges the air after heat exchange to the outdoor. The accumulator 74 is connected between the four-way switching valve 72 and the compressor 71, and is a container capable of storing surplus refrigerant generated in the refrigerant circuit in accordance with the operation load of the indoor units 5 and 6. The liquid pipe side closing valve 75 and the gas pipe side closing valve 76 are valves provided at the connection ports of the liquid refrigerant communication pipe 8, the gas refrigerant communication pipe 9 and the outdoor unit 7, respectively. The liquid pipe side closing valve 75 is connected to the outdoor heat exchanger 73. The gas pipe side closing valve 76 is connected to the four-way switching valve 72. The outdoor control unit 78 includes a microcomputer, a memory, an inverter circuit that controls the motor 71a, and the like, and controls the operation of the outdoor unit 7. Specifically, the outdoor side control unit 78 transmits and receives control signals to and from the indoor side control units 54 and 64 of the indoor units 5 and 6, and the compressor 71 that operates in accordance with the operation of the outdoor unit 7, four-way The operation of the switching valve 72 and the outdoor fan 77 is controlled. Furthermore, the outdoor side controller 78 continuously measures operation information of the compressor 71, the four-way switching valve 72, and the outdoor fan 77.
Thus, the air conditioner 10 includes the parts 8, 9, 51 to 54, 61 to 64, including the parts 51, 53, 61, 63, 71, 72, and 77 that operate in accordance with the operation of the air conditioner 10. 71, 71a, 72-78 and the like.

(Measurement device)
The measuring device 20 is connected to the indoor side control units 54 and 64 and the outdoor side control unit 78 of the air conditioner 10, and operates the parts 51, 53, 61, 63, 71, 72, and 77 that constitute the air conditioner 10. Measure information. Specifically, the measuring device 20 includes the operation information of the parts 51, 53, 61, 63 continuously measured by the indoor side control units 54, 64 and the parts 71, 72 continuously measured by the outdoor side control unit 78. , 77 is continuously collected, so that the operation information of the parts 51, 53, 61, 63, 71, 72, 77 is continuously measured. Further, the measuring device 20 sends daily report data including operation information of the parts 51, 53, 61, 63, 71, 72, 77 for one day to the parts maintenance support device 30 once a day.

  The operation information includes the parts 51, 53, 61, 63, 71, 72, such as the time when the power of the parts 51, 53, 61, 63, 71, 72, 77 is turned on and the time when the power is turned off. Information on 77 operations is included. Further, the daily report data includes not only the operation information for one day but also the measurement device 20 such as “from 3:00 on August 23, 2004 to 0:00 on August 24, 2004”. Information on the measurement period of the operation information of the parts 51, 53, 61, 63, 71, 72, 77 is also included.

(Parts maintenance support device)
With reference to FIG. 1 again, the configuration of the parts maintenance support device 30 will be described.
The parts maintenance support device 30 is connected to the measuring device 20 and the database 40 and supports maintenance of the parts 51, 53, 61, 63, 71, 72, and 77 constituting the air conditioner 10. The component maintenance support device 30 includes a database management unit 31, an acquisition unit 32, a measured cumulative value calculation unit 33, a relational expression prediction unit 34, a support information generation unit 35, and an output unit 36.
The database management unit 31 manages the operation information table 41 and the part information management table 42 in the database 40. The acquisition unit 32 acquires daily report data including operation information of parts 51, 53, 61, 63, 71, 72, 77 for one day via the measuring device 20 once a day. The measured cumulative value calculating means 33, the relational expression predicting means 34, and the support information generating means 35 cooperate with each other, and the parts 51, 53, 61, 63, 71, 72, 77 based on the operation information acquired by the acquiring means 32. Parts maintenance support information is generated to support maintenance. The output means 36 outputs part maintenance support information. Details of operations of the database management unit 31, the acquisition unit 32, the measured cumulative value calculation unit 33, the relational expression prediction unit 34, the support information generation unit 35, and the output unit 36 will be described later.
(Database)
The database 40 is a relational database and includes an operation information table 41 and a component information management table 42. The database 40 is connected to the component maintenance support device 30, and the operation information of the components 51, 53, 61, 63, 71, 72, 77 acquired by the component maintenance support device 30 is stored in the operation information table 41. Information on the parts 51, 53, 61, 63, 71, 72, 77 processed by the parts maintenance support device 30 based on the operation information of 53, 61, 63, 71, 72, 77 is stored in the part information management table 42. To do.

[Operation information table]
The configuration of the operation information table 41 will be described with reference to FIG.
The operation information table 41 is created in the database 40 by the database management unit 31 when the operation of the parts maintenance support device 30 starts, and is updated by the database management unit 31 every time the acquisition unit 32 acquires daily report data. The operation information table 41 has a component ID, a measurement time, and an event field. Based on the operation information of the components 51, 53, 61, 63, 71, 72, and 77 acquired by the component maintenance support device 30, which Information indicating when and what event the part has performed is stored as one record.

In the part ID field, an ID for specifying any of the parts 51, 53, 61, 63, 71, 72, and 77 is stored. For example, “53” represents the indoor fan 53, “71” represents the compressor 71, and “77” represents the outdoor fan 77.
The measurement time field stores the measurement time when the operation information of the component specified by the ID stored in the component ID field is measured.

The event field stores an event name representing an event performed at the measurement time when the component specified by the ID stored in the component ID field is stored in the measurement time field. For example, “power on” represents an event in which the power is turned on, and “power off” represents an event in which the power is turned off.
Therefore, for example, it can be seen from the record 1 in FIG. 3 that the indoor fan 53 is turned on at 8:30:30 on August 23, 2004 and starts operating.

[Part information management table]
The configuration of the component information management table 42 will be described with reference to FIG.
The component information management table 42 is created in the database 40 by the database management unit 31 when the operation of the component maintenance support device 30 starts, and is updated by the database management unit 31 every time the acquisition unit 32 acquires daily report data. The component information management table 42 includes a component ID, use start time, measurement start time, final measurement time, recalculation, initial accumulation count, measurement accumulation count, durability count, initial accumulation time, measurement accumulation time, durability time, and replacement time field. And stores information about each component 51, 53, 61, 63, 71, 72, 77 constituting the air conditioner 10 as one record.

In the part ID field, an ID for specifying any of the parts 51, 53, 61, 63, 71, 72, and 77 is stored. For example, “53” represents the indoor fan 53, “63” represents the indoor fan 63, “71” represents the compressor 71, and “77” represents the outdoor fan 77.
The use start time field stores the use start time when the use of the component specified by the ID stored in the component ID field is started.

The measurement start time field stores the measurement start time when the measurement of the operation information of the component specified by the ID stored in the component ID field is started.
The last measurement time field stores the last measurement time when the operation information of the component specified by the ID stored in the component ID field is last measured.
In the initial cumulative number field, the number of operation times of the part specified by the ID stored in the part ID field from the use start time stored in the use start time field to the measurement start time stored in the measurement start time field is displayed. An initial cumulative number that is a predicted value of the cumulative value is stored. Note that the cumulative value of the number of operations is a cumulative value of the number of times the power of the component is turned on.

In the initial accumulated time field, the operation time of the part specified by the ID stored in the part ID field from the use start time stored in the use start time field to the measurement start time stored in the measurement start time field is displayed. An initial cumulative time that is a predicted value of the cumulative value is stored. Note that the cumulative value of the operating time is a cumulative value of the time during which the power supply of the component is in an on state.
In the measurement cumulative number field, the part specified by the ID stored in the part ID field is measured from the measurement start time stored in the measurement start time field to the last measurement time stored in the last measurement time field. Stores the cumulative number of measurements that is the cumulative value of the number of operations.

In the measurement accumulated time field, the part specified by the ID stored in the part ID field is measured from the measurement start time stored in the measurement start time field to the last measurement time stored in the last measurement time field. The measurement accumulated time that is the accumulated value of the operating time is stored.
In the service life field, the service life of the part specified by the ID stored in the part ID field is stored. The service life is, for example, a preset value provided by a component manufacturer.

The service life of the part specified by the ID stored in the part ID field is stored in the service life field. The service life is, for example, a preset value provided by a component manufacturer.
The replacement time field stores a predicted value of a desired replacement time for the part specified by the ID stored in the part ID field.

  In the recalculation field, a flag indicating whether or not the value of each field should be updated by recalculating the values of the initial cumulative number, initial cumulative time, and replacement time field when the acquisition means 32 acquires the next daily report data. Stores the value. As the recalculation field, a 1-bit memory area is secured. When the next daily report data is acquired, the recalculation field is used to recalculate the initial accumulation count, initial accumulation time, and replacement time field values. “1” is stored, and “0” is stored when recalculation is not performed.

  Therefore, for example, according to the record 1 in FIG. 4, the indoor fan 53 starts to be used at 9:00:00 on June 1, 2002 and operates at 9:00:00 on June 15, 2002. Measurement of information is started, the useful life is 60000 times, the useful life is 30000 hours, from 9:00 on June 15, 2002 to 00:00:00 on August 24, 2004 The power was turned on 902 times and operated for 8825 hours. From 9:00 on June 1, 2002 to 9:00 on June 15, 2002, the power was turned on 15 times and operated for 155 hours. It is predicted that it will be exchanged on October 18, 2009, and these predicted values will be recalculated when the acquisition means 32 acquires the next daily report data.

(Operation of parts maintenance support device)
[Initial operation of parts maintenance support device]
With reference to FIG. 5, the initial operation at the start of the operation of the component maintenance support apparatus 30 will be described. The initial operation shown in FIG. 5 is a preparatory operation executed before the daily report data processing operation shown in FIGS. 6 and 7 is executed.
In step S51, the database management unit 31 of the component maintenance support apparatus 30 includes, in the database 40, the operation information table 41 having the component ID, measurement time, and event field of FIG. 3, the component ID of FIG. A component information management table 42 having fields of measurement start time, final measurement time, recalculation, initial cumulative number, measurement cumulative number, durable number, initial cumulative time, initial cumulative time, durable time and replacement time is created.

  In step S <b> 52, the acquisition unit 32 of the component maintenance support device 30 receives the air conditioner stored in the memory of the indoor side control units 54 and 64 and the outdoor side control unit 78 from the air conditioner 10 through the measuring device 20. 10 pieces of configuration information are acquired. The configuration information of the air conditioner 10 includes the connection status of the indoor units 5, 6 and the outdoor unit 7, the use start time, the number of times of use, and the use time of each component 51, 53, 61, 63, 71, 72, 77. It is.

In step S53, the database management unit 31 of the component maintenance support apparatus 30 creates one record corresponding to each component 51, 53, 61, 63, 71, 72, 77 based on the configuration information acquired in step S52. Each is added to the component information management table 42. At this time, a component ID for identifying each component 51, 53, 61, 63, 71, 72, 77 is stored in the component ID field of the added record. In addition, in the use start time field, the service life field, and the service life field of the added record, the use of each component 51, 53, 61, 63, 71, 72, 77 acquired by the acquisition means 32 in step S52, respectively. The start time, the number of times of service and the service time are stored. Furthermore, “0” indicating that the initial cumulative value does not have to be calculated when the next daily report data is received is stored in the recalculation field of the added record. At this time, “NULL” is stored in the other field of the record to be added.
[Operation of parts maintenance support device when receiving daily report data]
With reference to FIG.6 and FIG.7, the operation | movement at the time of the daily report data reception of the components maintenance assistance apparatus 30 is demonstrated.

In step S <b> 61, the acquisition unit 32 of the component maintenance support device 30 acquires daily report data from the measurement device 20. However, if the air conditioner 10 does not operate at all on that day and operation information is not obtained for any of the components 51, 53, 61, 63, 71, 72, 77, the flow ends.
Next, in step S62, the database management unit 31 of the component maintenance support apparatus 30 stores the operation information of the component included in the daily report data acquired by the acquisition unit 32 in step S61 in the operation information table 41. Specifically, a record in which appropriate values are stored in the component ID, measurement time, and event field as shown in FIG. 3 is added to the operation information table 41.

Next, in step S63, the database management unit 31 of the component maintenance support apparatus 30 selects one record as an update target record among all the records stored in the component information management table 42. In the following description, an ID stored in the part ID field of the update target record is referred to as an update target part ID.
Next, in step S64, the database management unit 31 of the component maintenance support apparatus 30 checks the record in which the update target component ID is stored in the component ID field among the records stored in the operation information table 41 in step S62. Select as a record.

  Next, in step S65, the database management unit 31 of the component maintenance support apparatus 30 updates the value of the measurement start time field of the update target record as necessary based on the inspection target record. Specifically, when a value other than “NULL” is stored in the measurement start time field of the update target record, the database management unit 31 does not update the value of the measurement start time field of the update target record. Proceed to step S66. On the other hand, when “NULL” is stored in the measurement start time field of the update target record, the most of the measurement times stored in the measurement time field of the inspection target record in which “power on” is stored in the event field. An earlier measurement time is selected, and the selected measurement time is stored in the measurement start time field of the update target record.

Next, in step S66, the database management unit 31 of the component maintenance support apparatus 30 determines the last measurement time field of the update target record based on the information related to the measurement period of the operation information included in the daily report data acquired in step S61. Update the value.
Next, in step S67, the measurement cumulative value calculation means 33 of the part maintenance support apparatus 30 updates the value of the measurement cumulative number field of the update target record. Specifically, the measurement cumulative value calculation unit 33 counts the number of records in which “power on” is stored in the event field among the inspection target records. Next, when “NULL” is stored in the measurement cumulative number field of the update target record, the measurement cumulative value calculation means 33 stores the total value in the measurement cumulative number field of the update target record, and updates the update target record. When a value other than “NULL” is stored in the measured cumulative number field, a value obtained by adding the total value to the stored value is stored in the measured cumulative number field of the update target record.

  Next, in step S68, the measurement cumulative value calculation unit 33 of the component maintenance support apparatus 30 updates the value of the measurement cumulative time field of the update target record. Specifically, the measurement cumulative value calculation means 33 selects a record in which “power off” is stored in the event field among the records to be inspected, and further, a component ID field among the records stored in the operation information table 41. The record in which the update target part ID is stored and the “power on” is stored in the event field is selected. Next, the measurement cumulative value calculation means 33 subtracts the measurement time corresponding to the immediately preceding “power on” from all the measurement times corresponding to “power off”, and adds up all the subtracted values. Next, when “NULL” is stored in the measurement cumulative time field of the update target record, the measurement cumulative value calculation unit 33 stores the total value in the measurement cumulative time field of the update target record, and updates the update target record. When a value other than “NULL” is stored in the measurement start time field, a value obtained by adding the sum to the stored value is stored in the measurement accumulation time field of the update target record.

  Next, in step S69, the database management unit 31 of the component maintenance support apparatus 30 updates the value of the recalculation field of the update target record as necessary. Specifically, the database management unit 31 determines that the measurement period from the last measurement time stored in the last measurement time field of the update target record to the measurement start time stored in the measurement start time field is a predetermined lower limit (this implementation In the form, if it is 200 days or more and it is not more than a predetermined upper limit value (3 years in this embodiment), “1” is stored in the recalculation field of the update target record, and otherwise Stores “0”.

  Next, in step S70, the database management unit 31 of the component maintenance support apparatus 30 determines whether to skip steps S71 to S73 based on the flag value stored in the recalculation field of the update target record. Specifically, when “1” is stored in the recalculation field of the update target record, the database management unit 31 proceeds to step S71, and when “0” is stored in the recalculation field, Steps S71 to S73 are skipped.

In step S <b> 71, the relational expression predicting unit 34 of the component maintenance support device 30 is based on the use start time, the measurement accumulated number, and the measurement accumulated time and the measurement accumulated time stored in the update accumulated record field. Thus, a relational expression between the elapsed time from the use start time of the component specified by the update target component ID, the cumulative value of the operation count, and the cumulative value of the operation time is predicted. Specifically, the relational expression predicting unit 34 assumes that each of the accumulated value of the operation number and the accumulated value of the operation time is proportional to the elapsed time from the use start time, and sets the accumulated value of the operation number to y ₁ , the operation time. Are constants a ₁ and a ₂ satisfying y ₁ = a ₁ t and y ₂ = a ₂ t, where y _{2 is} the accumulated value of t and t is the elapsed time with the use start time as the base point. a ₁ and a ₂ are
a ₁ = accumulation count / (final measurement time−measurement start time),
a ₂ = Measurement cumulative time / (last measurement time−measurement start time)
Is calculated by However, “·” means multiplication.

Next, in step S72, the support information generation unit 35 of the component maintenance support device 30 updates the update target component based on the _two relational expressions y ₁ = a ₁ t and y ₂ = a ₂ t predicted in step S71. Calculate the initial cumulative number of parts specified by the ID and the predicted value of the initial cumulative time. Specifically, the predicted values of the initial cumulative number and initial cumulative time are:
Predicted value of initial cumulative number of times = a ₁ (measurement start time-use start time)
Predicted value of initial cumulative time = a ₂ (measurement start time−use start time)
Is calculated by At this time, the calculated initial cumulative number and initial cumulative time are stored in the initial cumulative number and initial cumulative time fields of the update target record by the database management unit 31.

Next, in step S73, the support information generating unit 35 of the component maintenance support device 30 is identified by the update target component ID based on the service life and service life stored in the service life and service life fields of the update target record. Calculate the predicted value of the replacement time of the parts. Specifically, the predicted replacement time is
Predicted value of replacement time = min {use start time + use count / a ₁ , use start time + use time / a ₂ }
Is calculated by However, min {set of values} is the minimum value of a set of values delimited by “,” in {}. At this time, the calculated predicted value of the replacement time is stored by the database management means 31 in the replacement time field of the update target record.

In FIG. 8, with the elapsed time based on the use start time as the horizontal axis and the cumulative value of the operating time or the operating frequency as the vertical axis, the relational expressions y ₁ = a ₁ t and y ₂ = a ₂ t, the cumulative number of measurements, The relationship between the measurement cumulative time, the initial cumulative number, the initial cumulative time, the final measurement time, the predicted value of the replacement time, the number of times of service, and the time of service is shown.
Next, in step S74, the support information generation unit 35 of the component maintenance support device 30 generates component maintenance support information as necessary. Specifically, the support information generation unit 35 replaces the replacement time stored in the replacement time field within a predetermined period (six months in the present embodiment) from the last measurement time stored in the last measurement time field of the update target record. , The component maintenance support information is generated with reference to the update target record. Otherwise, step S75 is skipped. If “NULL” is stored in the replacement time field, it cannot be determined that the replacement time will be reached within a predetermined period, so step S75 is skipped.

  Here, the parts maintenance support information is information for supporting the maintenance of the parts by the user, the part name of the part specified by the ID stored in the part ID field of the update target record, and the measurement start time. , Last measurement time, initial cumulative number, measurement cumulative number, useful number of times, initial cumulative time, measurement cumulative time, useful time and measurement start time included in the replacement time field, final measured time, initial cumulative number, measured cumulative number, durable This is information in which the number of times, initial accumulated time, measured accumulated time, service life and replacement time are listed in an appropriate format.

As described above, in steps S72 to S74, the support information generation unit 35 of the component maintenance support device 30 updates the two relational expressions y ₁ = a ₁ t and y ₂ = a ₂ t predicted in step S70, and the update target. The part maintenance support information is generated on the basis of the service life and service life stored in the service life and service life fields of the record.
Next, in step S75, the output means 36 of the component maintenance support apparatus 30 outputs the component maintenance support information generated in step S73.
Next, the parts maintenance support apparatus 30 repeats the above steps S63 to S75 for all the records stored in the parts information management table 42.
As described above, when the measurement period is shorter than 200 days, the parts maintenance support information is not output, and when the measurement period exceeds 3 years, the relational expression predicted on the day when the measurement period becomes 3 years. The parts maintenance support information generated based on the above is output.

(Characteristic)
(1)
The parts maintenance support system 1 is a relational expression y between the elapsed time from the use start time of the parts 51, 53, 61, 63, 71, 72, and 77 constituting the air conditioner 10 and the accumulated value of the operating time or the number of times of operation. Predict ₁ = a ₁ t and y ₂ = a ₂ t. Thereby, the parts maintenance support system 1 starts the measurement of the operation information of the parts 51, 53, 61, 63, 71, 72, and 77 from the measurement start time after the use start time of the parts and before the measurement start time. Even when the operation information is not measured, the parts 51, 53, 61, 63, 71, 72, and 77 are maintained in consideration of not only the operation information after the measurement start time but also the operation information before the measurement start time. Can support appropriately.
(2)
The parts maintenance support system 1 includes a measurement accumulated value that is an accumulated value of the operation time or the number of operations of the parts 51, 53, 61, 63, 71, 72, 77 from the measurement start time to the current time, and the parts 51, 53, The operation time from the use start time of 61, 63, 71, 72, 77 to the measurement start time and the initial cumulative value that is the cumulative value of the number of operations are output separately. Thereby, the user who makes a decision about maintenance can distinguish between the measured cumulative value and the initial cumulative value, and is convinced about the maintenance of the parts 51, 53, 61, 63, 71, 72, 77. A decision can be made.
(3)
When the operation information measurement period of the parts 51, 53, 61, 63, 71, 72, 77 is shorter than a predetermined lower limit value, the parts maintenance support system 1 has relational expressions y ₁ = a ₁ t and y ₂ = Since there is a high possibility that a certain level of prediction accuracy of a ₂ t cannot be ensured, when the measurement period is shorter than a predetermined lower limit, the parts maintenance support information is prohibited. As a result, the parts maintenance support system 1 can avoid outputting information that can negatively affect the maintenance of the parts 51, 53, 61, 63, 71, 72, 77.
The parts maintenance support system 1 also has relational expressions y ₁ = a ₁ t and y ₂ = a when the operation information measurement period of the parts 51, 53, 61, 63, 71, 72, 77 exceeds a predetermined upper limit value. _Since the accuracy of ₂ t prediction reaches its peak, when the measurement period exceeds a predetermined upper limit value, the relational expression y ₁ = a ₁ t and y predicted when the measurement period is equal to the predetermined upper limit value _The component maintenance support information generated based on ₂ = a ₂ t is output. As a result, the parts maintenance support system 1 can avoid unnecessary processing and reduce processing of the entire system.
(4)
The parts maintenance support system 1 predicts the replacement timing of the parts 51, 53, 61, 63, 71, 72, 77 based on the service life or the number of service times of the parts 51, 53, 61, 63, 71, 72, 77. The predicted value is output. Thereby, a user who makes a decision about maintenance can consider the replacement time, and can make a satisfactory decision about maintenance of the parts 51, 53, 61, 63, 71, 72, 77. .

Second Embodiment
(Parts maintenance support system)
The component maintenance support system according to the second embodiment is the same except for the configuration of the component maintenance support system 1 and the component maintenance support device 30 according to the first embodiment.
(Parts maintenance support device)
FIG. 9 shows a component maintenance support apparatus 100 according to the second embodiment.

The parts maintenance support device 100 has the same configuration as a normal computer, and includes a CPU 101, a memory 102, an input device 103, an output device 104, a hard disk (hereinafter referred to as HD) 105, and a communication unit 106.
The HD 105 stores a component maintenance support apparatus program that causes the CPU 101 to sequentially execute operations according to the flowcharts shown in FIGS. 5, 6, and 7. The operations according to the flowcharts of FIGS. 5, 6 and 7 in the second embodiment are the same as the database management means 31 in the description of the flowcharts of FIGS. Since the measurement cumulative value calculation means 33 is replaced with the CPU 101, the relational expression prediction means 34 is replaced with the CPU 101, the support information generation means 35 is replaced with the CPU 101, and the output means 36 is replaced with the output device 104. It is omitted in the description of the embodiment.
As described above, the computer according to the second embodiment functions as the component maintenance support apparatus 100 as a whole.

<Modification>
(1)
In the above embodiments, the parts maintenance support system 1 supports maintenance of the parts 51, 53, 61, 63, 71, 72, and 77 that constitute the air conditioner 10. You may apply to the components which comprise an apparatus.
(2)
In each of the above embodiments, the component maintenance support devices 30 and 100 are connected to the measurement device 20 via the Internet line, the dedicated line, the telephone line, or the like, and the component maintenance support devices 30 and 100 are connected to the air conditioner 10 and the measurement device 20. It may exist in a remote management center at a remote location. In this case, there is no need to install the parts maintenance support devices 30 and 100 in the property where the air conditioner 10 is installed, and the end user who is active in the property where the air conditioner 10 is installed is The introduction cost of the parts maintenance support system 1 can be reduced.
Recently, local controllers are often installed in properties where air conditioners are installed. Such a local controller has a function of managing the operation of the air conditioner and acquiring operation information of the air conditioner and periodically transmitting it to a remote management computer in the remote management center. In this case, since the existing local controller plays the role of the measuring device 20, it is possible to minimize newly installed equipment when the parts maintenance support system 1 is introduced. In the parts maintenance support system 1, it is not necessary for a service person on the service provider side to visit the site in order to operate the parts maintenance support devices 30 and 100. Thus, in this parts maintenance support system 1, it is possible to reduce a burden such as a user introduction cost.

(3)
In each of the embodiments described above, the output means 36 of the parts maintenance support devices 30 and 100 generates the part maintenance support information in the format in step S74 when a certain condition is satisfied when receiving the daily report data. In particular, for the end user, displaying a character informing that the replacement time is near to the display provided in the air conditioner 10, or lighting a predetermined liquid crystal lamp in a predetermined color, etc. Information can be output.
(4)
In each of the above embodiments, the number of operation times and the operation time for one day are automatically accumulated once a day in the measurement accumulation number and measurement accumulation time fields of the component information management table 42. As a further modification, A limit value per day for the number of operations or operation hours is set, and if the limit value is exceeded, it is considered that an error has occurred in any of the parts maintenance support system 1, and the number of operations for that day Or it can set so that operation time may not be accumulated. In this case, the operation information regarded as information at the time of occurrence of an abnormality is excluded when considering maintenance of the parts 51, 53, 61, 63, 71, 72, and 77. Therefore, in this modification, inaccurate operation information after the measurement start time can be eliminated, and maintenance of the parts 51, 53, 61, 63, 71, 72, 77 can be supported more appropriately.
(5)
In each of the above embodiments, the configuration information of the air conditioner 10 is acquired from the memory of the indoor side control units 54 and 64 and the outdoor side control unit 78, but the user of the parts maintenance support system 1 can use any method. The obtained configuration information of the air conditioner 10 may be directly input to the database 40. As a method for the user of the parts maintenance support system 1 to obtain the configuration information of the air conditioner 10, the air conditioner 10 or the parts 51, 53, 61, 63, 71, 72, 77 from the manufacturer that manufactured the air conditioner 10 can be used. Providing etc. can be considered.

  In the present invention, even when the operation information of a part is started from a measurement start time after the use start time of the part and the operation information before the measurement start time is not measured, only the operation information after the measurement start time is measured. In addition, the operation information before the measurement start time is also taken into consideration, so that it is possible to appropriately support the maintenance of the parts, which is useful as a parts maintenance support device, a parts maintenance support system, and a parts maintenance support program.

The figure which shows the structure of the components maintenance assistance system which concerns on 1st Embodiment. The figure which shows the structure of an air conditioner. The figure which shows the structure of an operation information table. The figure which shows the structure of a components information management table. The flowchart which shows the initial stage operation | movement at the time of the operation | movement start of a components maintenance assistance apparatus. The flowchart which shows the operation | movement at the time of the daily report data reception of a components maintenance assistance apparatus. The flowchart which shows the process for every update object record contained in the operation | movement at the time of the daily report data reception of a components maintenance assistance apparatus. The figure which shows the relational expression of the elapsed time from the use start time of components, and the operation frequency or the cumulative value of operation time. The figure which shows the structure of the components maintenance assistance apparatus which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parts maintenance support system 10 Air conditioner 20 Measuring apparatus 30,100 Parts maintenance support apparatus 32 Acquisition means 33 Measurement cumulative value calculation means 34 Relational expression prediction means 35 Support information generation means 36 Output means 51, 53, 61, 63, 71 , 72,77 parts

Claims (9)

A parts maintenance support device (30, 100) for supporting maintenance of parts (51, 53, 61, 63, 71, 72, 77) constituting the equipment (10),
Use start time of the parts (51, 53, 61, 63, 71, 72, 77) and the parts (51, 53, 61, measured from the measurement start time after the use start time to the current time) 63, 71, 72, 77) acquisition means (32) for acquiring operation information;
Based on the operation information, a measurement accumulated value that is an accumulated value of the operation time or the operation frequency of the parts (51, 53, 61, 63, 71, 72, 77) from the measurement start time to the current time is calculated. A measured cumulative value calculation means (33) to perform,
Relational expression predicting means (34) for predicting a relational expression between the elapsed time from the use start time and the accumulated value of the operation time or the number of operations based on the use start time and the measured cumulative value;
Support information generating means (35) for generating component maintenance support information, which is information for supporting maintenance of the components (51, 53, 61, 63, 71, 72, 77) based on the relational expression;
Output means (36) for outputting the parts maintenance support information;
A parts maintenance support device (30, 100). The parts maintenance support information includes the measurement cumulative value and an initial cumulative value that is a cumulative value of the operation time or the number of operations from the use start time to the measurement start time.
The parts maintenance support device (30, 100) according to claim 1. The acquisition means (32) further acquires a service limit value that is a service time or a service life number of the component (51, 53, 61, 63, 71, 72, 77),
The support information generating means (35) generates the parts maintenance support information based on the service life limit value.
The parts maintenance support device (30, 100) according to claim 1 or 2. The parts maintenance support information includes a predicted value of replacement timing of the parts (51, 53, 61, 63, 71, 72, 77).
The parts maintenance support device (30, 100) according to claim 3. The relational expression predicting means (34) predicts the relational expression on the assumption that the operation time or the cumulative value of the number of operations is proportional to the elapsed time from the use start time.
The parts maintenance support device (30, 100) according to any one of claims 1 to 4. The output means (36) does not output the component maintenance support information when a period from the measurement start time to the current time is shorter than a predetermined lower limit value.
The parts maintenance support device (30, 100) according to any one of claims 1 to 5. When the period from the measurement start time to the current time exceeds a predetermined upper limit value, the output means (36) is based on the relational expression predicted when the period is equal to the predetermined upper limit value. Outputting the parts maintenance support information generated by
The parts maintenance support device (30, 100) according to any one of claims 1 to 6. A parts maintenance support system (1) for supporting maintenance of parts (51, 53, 61, 63, 71, 72, 77) constituting the equipment (10),
The parts (51, 53, 61, 63, 71, 72, 77) continuously from the measurement start time to the current time after the use start time of the parts (51, 53, 61, 63, 71, 72, 77). ) Measuring device (20) for measuring operation information;
A parts maintenance support device (30, 100) connected to the measuring device (20);
With
The parts maintenance support device (30, 100)
An acquisition means (32) for acquiring a use start time of the parts (51, 53, 61, 63, 71, 72, 77) and the operation information;
Based on the operation information, a measurement accumulated value that is an accumulated value of the operation time or the operation frequency of the parts (51, 53, 61, 63, 71, 72, 77) from the measurement start time to the current time is calculated. A measured cumulative value calculation means (33) to perform,
Relational expression predicting means (34) for predicting a relational expression between the elapsed time from the use start time and the accumulated value of the operation time or the number of operations based on the use start time and the measured cumulative value;
Support information generating means (35) for generating component maintenance support information, which is information for supporting maintenance of the components (51, 53, 61, 63, 71, 72, 77) based on the relational expression;
Output means (36) for outputting the parts maintenance support information;
A parts maintenance support system (1). A parts maintenance support program for supporting maintenance of parts (51, 53, 61, 63, 71, 72, 77) constituting the equipment (10),
Use start time of the parts (51, 53, 61, 63, 71, 72, 77) and the parts (51, 53, 61, measured from the measurement start time after the use start time to the current time) 63, 71, 72, 77) acquisition step (S52, S61) for acquiring operation information;
Based on the operation information, a measurement accumulated value that is an accumulated value of the operation time or the operation frequency of the parts (51, 53, 61, 63, 71, 72, 77) from the measurement start time to the current time is calculated. A measured cumulative value calculating step (S67, S68),
A relational expression prediction step (S69, 70) for predicting a relational expression between the elapsed time from the use start time and the cumulative value of the operation time or the number of operations based on the use start time and the measured cumulative value;
Support information generation steps (S71 to S73) for generating component maintenance support information, which is information for supporting maintenance of the components (51, 53, 61, 63, 71, 72, 77) based on the relational expression. When,
An output step (S75) for outputting the component maintenance support information;
A part maintenance support program for causing the computer (100) to execute

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