WO2017122357A1

WO2017122357A1 - Deterioration diagnosis apparatus, deterioration diagnosis system, train, deterioration diagnosis method, and deterioration diagnosis program

Info

Publication number: WO2017122357A1
Application number: PCT/JP2016/051171
Authority: WO
Inventors: 達徳辻村
Original assignee: 三菱電機株式会社
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2017-07-20

Abstract

An instruction unit (112) of a deterioration diagnosis apparatus (101) acquires, from a recording medium (107), device information indicating at least the time at which inspection has been performed, or the time at which manufacturing has been completed, for each of at least three devices (151). The instruction unit (112) selects a first device and a second device from among the at least three devices (151) on the basis of the acquired device information. The instruction unit (112) instructs the selected first and second devices to start up. A diagnosis unit (113) of the deterioration diagnosis apparatus (101) diagnoses deterioration of the second device by comparing second data indicating a value measured at the second device after the instruction is issued by the instruction unit (112) with first data indicating a value measured at the first device after the instruction is issued by the instruction unit (112).

Description

Deterioration diagnosis apparatus, deterioration diagnosis system, train, deterioration diagnosis method, and deterioration diagnosis program

The present invention relates to a deterioration diagnosis device, a deterioration diagnosis system, a train, a deterioration diagnosis method, and a deterioration diagnosis program.

There is a technique for diagnosing deterioration of an air conditioner by comparing measured values such as current and pressure of an air conditioner attached to each vehicle of a train (for example, see Patent Document 1). In this technique, data including measurement values of the air conditioner is collected from the train and stored in a remote management computer. The accumulated data is analyzed by the management computer. Specifically, the measured values of the air conditioners of each vehicle are compared, and if there is an air conditioner with a deviation larger than a specified value, it is determined that the air conditioner has deteriorated.

JP 2004-291899 A

In the conventional technology, since the management computer located away from the train analyzes the data in a unified manner, it takes time to diagnose deterioration.

The object of the present invention is to shorten the time required for deterioration diagnosis.

The deterioration diagnosis apparatus according to one aspect of the present invention is
Acquire device information indicating at least one of the time when each device was inspected and the time when each device was manufactured for three or more devices from the recording medium, and based on the acquired device information, the three or more devices A command unit that selects a first device that is a reference for deterioration diagnosis and a second device that is a target for deterioration diagnosis, and instructs the selected first device and second device to start;
By comparing the first data indicating the value measured by the first device after the command by the command unit and the second data indicating the value measured by the second device after the command by the command unit, A diagnosis unit that diagnoses deterioration of the second device.

In the present invention, the deterioration of the second device is diagnosed by comparing the data of the first device and the second device selected from three or more devices. Since it is not necessary to analyze the data of all the devices, it is possible to reduce the time required for deterioration diagnosis.

1 is a block diagram showing a configuration of a deterioration diagnosis system according to Embodiment 1. FIG. FIG. 3 is a diagram showing a format of data stored in a recording medium by the deterioration diagnosis apparatus according to the first embodiment. The figure which shows the format of the data transmitted / received between the degradation diagnostic apparatus and Embodiment which concern on Embodiment 1. FIG. 5 is a flowchart showing an operation of a communication unit of the deterioration diagnosis apparatus according to the first embodiment. 5 is a flowchart showing an operation of a command unit of the deterioration diagnosis apparatus according to the first embodiment. 5 is a flowchart showing an operation of a diagnosis unit of the deterioration diagnosis apparatus according to the first embodiment. 5 is a flowchart showing an operation of a setting unit of the deterioration diagnosis apparatus according to the first embodiment. 5 is a flowchart showing an operation of the terminal device according to the first embodiment. 4 is a flowchart showing the operation of the vehicle interface unit according to the first embodiment. 5 is a flowchart showing an operation of a display unit of the deterioration diagnosis apparatus according to the first embodiment. FIG. 3 is a block diagram showing a configuration of a deterioration diagnosis system according to a modification of the first embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which is the same or it corresponds in each figure. In the description of the embodiments, the description of the same or corresponding parts will be omitted or simplified as appropriate.

Embodiment 1 FIG.
The configuration of the system according to the present embodiment, the operation of the system according to the present embodiment, and the effects of the present embodiment will be described in order.

*** Explanation of configuration ***
With reference to FIG. 1, the structure of the deterioration diagnosis system 100 which is a system based on this Embodiment is demonstrated.

The deterioration diagnosis system 100 is provided in the train 900. The train 900 includes three or more vehicles 901.

The deterioration diagnosis system 100 includes one deterioration diagnosis device 101, three or more terminal devices 131, three or more vehicle interface units 141, and three or more devices 151.

The deterioration diagnosis apparatus 101 is installed in one vehicle 901. Therefore, the number of deterioration diagnosis apparatuses 101 is one. Specifically, the deterioration diagnosis apparatus 101 is installed in the cab of the vehicle 901. In the present embodiment, the degradation diagnosis apparatus 101 is a computer having a function of diagnosing degradation of the device 151, controlling the device 151, and displaying information related to the device 151. Note that the number of deterioration diagnosis apparatuses 101 may be two or more. It is sufficient that at least one vehicle 901 has one deterioration diagnosis device 101 installed.

One device 151 is installed in each vehicle 901. Therefore, the number of devices 151 is the same as that of the vehicle 901. In the present embodiment, the device 151 is an air conditioner having a function of measuring the outside air temperature. Note that the number of devices 151 may be different from that of the vehicle 901. A total of three or more devices 151 may be installed in the entire train 900. The device 151 may be an electrical product other than the air conditioner. The deterioration diagnosis system 100 may include two or more types of electrical products as the device 151. Specifically, the deterioration diagnosis system 100 may include various electric appliances such as a lighting fixture, a brake, and a door opening / closing device that are normally installed in each vehicle 901 as the device 151 in addition to the air conditioner. For each type, a total of three or more devices 151 may be installed in the entire train 900.

One terminal device 131 is installed in each vehicle 901. Therefore, the number of terminal devices 131 is the same as the number of vehicles 901. Note that the number of terminal devices 131 may be different from that of the vehicle 901. Regardless of the number and type of the devices 151, it is sufficient that one terminal device 131 is installed in the vehicle 901 in which at least one device 151 is installed.

One vehicle interface unit 141 is installed for one device 151. Therefore, the number of vehicle interface units 141 is the same as the number of devices 151. The vehicle interface unit 141 is an interface that connects the terminal device 131 and the device 151 installed in the same vehicle 901. Note that the function of the vehicle interface unit 141 may be integrated into each device 151. That is, the terminal device 131 and the device 151 installed in the same vehicle 901 may be directly connected, and the vehicle interface unit 141 may be omitted.

The deterioration diagnosis device 101 and the terminal device 131 are connected in order via the serial transmission path 121. Note that the deterioration diagnosis device 101 may be directly connected to each terminal device 131. Deterioration diagnosis apparatus 101 and terminal apparatus 131 may be wirelessly connected.

The deterioration diagnosis system 100 is not limited to the train 900, but can be applied to any mobile body or place where three or more air conditioners or other electrical equipment are already installed or can be installed.

Hereinafter, the configuration of the deterioration diagnosis apparatus 101 will be described.

As described above, the deterioration diagnosis apparatus 101 is a computer. The degradation diagnosis apparatus 101 includes hardware such as a processor 102, a memory 103, an input device 104, a display 105, a communication device 106, and a recording medium 107. The processor 102 is connected to other hardware via a signal line, and controls these other hardware.

The deterioration diagnosis apparatus 101 includes functional elements such as a communication unit 111, a command unit 112, a diagnosis unit 113, a setting unit 114, and a display unit 115. These functional elements are realized by software.

The processor 102 is an IC (Integrated Circuit) that performs processing. Specifically, the processor 102 is a CPU (Central Processing Unit).

Specifically, the memory 103 is a flash memory or a RAM (Random Access Memory).

Specifically, the input device 104 is a mouse, a keyboard, or a touch panel.

The display 105 is specifically an LCD (Liquid / Crystal / Display).

The communication device 106 includes a receiver that receives data via the serial transmission path 121 and a transmitter that transmits data via the serial transmission path 121. Specifically, the communication device 106 is a communication chip or a NIC (Network, Interface, Card).

The recording medium 107 is specifically a memory card or a USB (Universal / Serial / Bus) memory. When a memory card is used as the recording medium 107, the deterioration diagnosis apparatus 101 needs to include a memory card reader / writer. Note that the memory 103 may also be used as the recording medium 107.

The memory 103 stores a program that realizes functional elements of the deterioration diagnosis apparatus 101. This program is read into the processor 102 and executed by the processor 102. The memory 103 also stores an OS (Operating System). The processor 102 executes a program that realizes the functional elements of the deterioration diagnosis apparatus 101 while executing the OS.

It should be noted that the program and OS for realizing the functional elements of the deterioration diagnosis apparatus 101 may be stored in the auxiliary storage device. Specifically, the auxiliary storage device is a flash memory or an HDD (Hard Disk Drive). The program and OS stored in the auxiliary storage device are loaded into the memory 103 and executed by the processor 102.

The deterioration diagnosis apparatus 101 may include only one processor 102 or may include a plurality of processors 102. A plurality of processors 102 may execute a program for realizing the functional elements of the deterioration diagnosis apparatus 101 in cooperation with each other.

Information, data, signal values, and variable values indicating the execution results of the program that implements the functional elements of the degradation diagnosis apparatus 101 are stored in the memory 103, the auxiliary storage device, or a register or cache memory in the processor 102. .

The program for realizing the functional elements of the deterioration diagnosis apparatus 101 may be stored in a portable recording medium such as a magnetic disk or an optical disk.

The deterioration diagnosis apparatus 101 may be configured by a single computer or may be configured by a plurality of computers. As a specific example, one computer becomes a central device that diagnoses deterioration of the device 151 and controls the device 151, and another computer operates the central device from the screen or is obtained from the central device. It may be a display that displays information on the screen.

Although not shown, the terminal device 131 includes hardware such as a processor, a memory, and a communication device. With these hardware, a function of relaying data transmitted and received between the degradation diagnosis apparatus 101 and the device 151 is realized.

Although not shown, the vehicle interface unit 141 includes hardware such as a processor, a memory, a communication device, and a digital signal input / output circuit. With these hardware, an interface function between the terminal device 131 and the device 151 is realized. Specifically, the function of receiving data from the terminal device 131 and the function of transmitting data to the terminal device 131 are realized by the communication device. A function of receiving data from the device 151 and a function of transmitting data to the device 151 are realized by the communication device or the digital signal input / output circuit. The communication device and the digital signal input / output circuit are properly used depending on the configuration of the device 151.

Referring to FIG. 2, the format of data stored in the recording medium 107 by the deterioration diagnosis apparatus 101 will be described.

The measurement data 201 is data indicating a value measured by the device 151. The measurement data 201 includes a time 202 when the value is measured, a device ID 203 that is an identifier of the device 151, and a value measured by the device 151 indicated by the device ID 203. The device ID 203 is specifically a serial number of the air conditioner. As the measured values, the current value 204 of the indoor heat exchanger of the air conditioner, the current value 205 of the outdoor heat exchanger of the air conditioner, the current value 206 of the compressor of the air conditioner, The pressure 207 of the high-pressure side pipe and the pressure 208 of the low-pressure side pipe of the compressor are included.

Judgment data 211 is data for associating the result of degradation diagnosis in the degradation diagnostic apparatus 101 with the judgment of operation of the device 151. The determination data 211 includes a deterioration diagnosis result 212 and an operation determination 213. Specifically, the result 212 of the deterioration diagnosis is whether the device 151 has deteriorated, a numerical value indicating how much the device 151 has deteriorated, or which part of the device 151 has deteriorated, or This is a numerical value indicating how much of the device 151 has deteriorated. Specifically, the operation determination 213 is a numerical value indicating any one of “operation”, “cut operation”, and “operation change”. “Operating” is operating the train 900 without restricting the operation of the device 151. The “cut operation” is to operate the train 900 with the device 151 turned off. “Operation change” is to change the setting of the device 151 and operate the train 900.

The specification data 221 is data indicating the specification of the device 151. The specification data 221 includes a device ID 222 that is an identifier of the device 151, a manufacturing date 223 of the device 151 indicated by the device ID 222, and a startup time 224 of the device 151. The device ID 222 is specifically a serial number of the air conditioner, like the device ID 203 of the measurement data 201.

The inspection data 231 is data indicating the implementation contents of the periodic inspection of the device 151. The inspection data 231 includes a device ID 232 that is an identifier of the device 151, a date of performing a periodic inspection 233 of the device 151 indicated by the device ID 232, and an execution content 234 of the periodic inspection. The device ID 232 is specifically the serial number of the air conditioner, like the device ID 203 of the measurement data 201.

Referring to FIG. 3, the format of data transmitted / received between degradation diagnosis apparatus 101 and device 151 will be described.

The communication data 301 is request data transmitted from the deterioration diagnosis apparatus 101 to the device 151 or response data received from the device 151 by the deterioration diagnosis apparatus 101. The communication data 301 includes a data type 302 and data 303. Specifically, the data type 302 is a numerical value indicating the type of the data 303. The types of data 303 include request data such as outside air temperature request data 311, operation command data 331 and measurement request data 351, and response data such as outside air temperature notification data 321, operation response data 341 and measurement response data 361. .

The outside air temperature request data 311 is data that the degradation diagnosis apparatus 101 transmits to request the device 151 to measure the outside air temperature. In the outside air temperature request data 311, the outside air temperature indicating that the destination device ID 312, the transmission source 313 indicating the command unit 112 of the deterioration diagnosis apparatus 101, and the outside air temperature measured by the device 151 indicated by the device ID 312 are requested. Request 314 is included. The device ID 312 is specifically the serial number of the destination air conditioner. The outside air temperature request 314 may be dummy data.

The outside air temperature notification data 321 is data that the device 151 transmits to notify the deterioration diagnosis apparatus 101 of the outside air temperature. The outside air temperature notification data 321 includes a destination 322 indicating the command unit 112 of the deterioration diagnosis device 101, a transmission source device ID 323, and an outside air temperature 324 measured by the device 151 indicated by the device ID 323. The device ID 323 is specifically the serial number of the air conditioner that is the transmission source.

The operation command data 331 is data that the degradation diagnosis apparatus 101 transmits to instruct the device 151 to start up. In the operation command data 331, the destination device ID 332, the transmission source 333 indicating the command unit 112 or the setting unit 114 of the deterioration diagnosis apparatus 101, and the operation command indicating to command the device 151 indicated by the device ID 332 to start the operation. 334 and a set temperature 335 that is used by the device 151 during operation. The device ID 332 is specifically the serial number of the destination air conditioner, like the device ID 312 of the outside air temperature request data 311. Specifically, the operation command 334 is a numerical value indicating whether the air conditioner is turned on or off, and the type of operation such as heating operation or cooling operation.

The operation response data 341 is data that the device 151 transmits to notify the deterioration diagnosis apparatus 101 of the start of operation. The driving response data 341 includes a destination 342 indicating the command unit 112 or the setting unit 114 of the deterioration diagnosis apparatus 101, a device ID 343 as a transmission source, and a driving response 344 indicating that the device 151 indicated by the device ID 343 has started driving. And are included. The destination 342 is set to the same value as the transmission source 333 of the operation command data 331 corresponding to the operation response data 341. The device ID 343 is, specifically, the serial number of the air conditioner of the transmission source, like the device ID 323 of the outside air temperature notification data 321. The driving response 344 may be dummy data.

The measurement request data 351 is data that the degradation diagnosis apparatus 101 transmits in order to request the device 151 to measure a value. The measurement request data 351 includes a destination device ID 352, a transmission source 353 indicating the diagnosis unit 113 of the degradation diagnosis apparatus 101, and an information request 354 indicating that a value measured by the device 151 indicated by the device ID 352 is requested. Is included. The device ID 352 is, specifically, the serial number of the destination air conditioner, similar to the device ID 312 of the outside air temperature request data 311. The information request 354 may be dummy data.

The measurement response data 361 is data that the device 151 transmits to notify the deterioration diagnosis apparatus 101 of the measurement result. The measurement response data 361 includes a destination 362 indicating the diagnosis unit 113 of the deterioration diagnosis apparatus 101, a transmission source device ID 363, a time 364 when a value is measured by the device 151 indicated by the device ID 363, and a measured value. Is included. The device ID 363 is, specifically, the serial number of the air conditioner of the transmission source, like the device ID 323 of the outside air temperature notification data 321. The measured values include the current value 365 of the indoor heat exchanger of the air conditioner, the current value 366 of the outdoor heat exchanger of the air conditioner, the current value 367 of the compressor of the air conditioner, The pressure 368 of the high pressure side piping and the pressure 369 of the low pressure side piping of the compressor are included.

*** Explanation of operation ***
With reference to FIG. 4 to FIG. 10, the operation of the deterioration diagnosis system 100 which is a system according to the present embodiment will be described. The operation of the deterioration diagnosis system 100 corresponds to the deterioration diagnosis method according to the present embodiment. The operation of the functional elements of the deterioration diagnosis apparatus 101 shown in FIGS. 4, 5, 6, 7, and 10 corresponds to the processing procedure of the deterioration diagnosis program according to the present embodiment.

Before the train 900 is operated, the equipment 151 is turned on, but operations such as cooling and heating are stopped. The display unit 115 of the deterioration diagnosis apparatus 101 outputs an operation screen to the display 105 in advance. The driver of the train 900 performs an operation for starting the deterioration diagnosis of the device 151 from the operation screen.

10, the display unit 115 of the deterioration diagnosis device 101 notifies the instruction unit 112 of the start of the deterioration diagnosis. In step S92, the display unit 115 displays a message indicating the start of deterioration diagnosis on the operation screen.

In step S21 of FIG. 5, the command unit 112 of the deterioration diagnosis apparatus 101 receives a notification from the display unit 115. In step S 22, the command unit 112 generates outside air temperature request data 311. In step S 23, the command unit 112 transmits the generated outside air temperature request data 311 to the communication unit 111.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the outside air temperature request data 311 from the command unit 112. In step S 12, the communication unit 111 generates communication data 301 including the received outside air temperature request data 311 as data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the outside air temperature request data 311. The communication unit 111 transmits the generated communication data 301 to the serial transmission path 121.

8, the terminal device 131 receives the communication data 301 from the serial transmission path 121. In step S 62, the terminal device 131 transmits the received communication data 301 to the vehicle interface unit 141.

9, the vehicle interface unit 141 receives the communication data 301 from the terminal device 131. The vehicle interface unit 141 extracts outside air temperature request data 311 from the received communication data 301. In step S72, the vehicle interface unit 141 connected to the device 151 indicated by the device ID 312 of the outside air temperature request data 311 causes the device 151 to output the outside air temperature notification data 321 according to the outside air temperature request data 311. The other vehicle interface units 141 simply discard the outside air temperature request data 311. In step S 73, the vehicle interface unit 141 generates communication data 301 including the outside air temperature notification data 321 output from the device 151 as the data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the outside air temperature notification data 321. The vehicle interface unit 141 transmits the generated communication data 301 to the terminal device 131.

8, the terminal device 131 receives the communication data 301 from the vehicle interface unit 141. In step S 64, the terminal device 131 transmits the received communication data 301 to the serial transmission path 121.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the communication data 301 from the serial transmission path 121. In step S 14, the communication unit 111 extracts outside air temperature notification data 321 from the received communication data 301. The communication unit 111 transmits the extracted outside air temperature notification data 321 to the command unit 112.

5, the command unit 112 of the degradation diagnosis apparatus 101 receives the outside air temperature notification data 321 from the communication unit 111. When the outside air temperature notification data 321 is received from all the devices 151, the command unit 112 acquires the specification data 221 and the inspection data 231 of all the devices 151 stored in the recording medium 107 in step S25. . In step S 26, the command unit 112 compares the implementation date 233 included in the inspection data 231 of each device 151. The command unit 112 uses the manufacturing date 223 included in the specification data 221 instead for the device 151 without the inspection data 231. The command unit 112 selects the device 151 having the latest implementation date 233 or manufacturing date 223 as the latest device 151. The command unit 112 selects the device 151 having the earliest implementation date 233 or manufacturing date 223 as the oldest device 151. In step S 27, the command unit 112 determines the average value of the outside air temperature 324 included in the outside air temperature notification data 321 from the latest device 151 and the outside air temperature 324 included in the outside air temperature notification data 321 from the oldest device 151. Is calculated. In step S 28, the command unit 112 compares the activation time 224 included in the specification data 221 of the latest device 151 with the activation time 224 included in the specification data 221 of the oldest device 151. The command unit 112 first generates the operation command data 331 of the device 151 having the longer activation time 224, and transmits the generated operation command data 331 to the communication unit 111. Thereafter, the command unit 112 generates the operation command data 331 of the device 151 having the shorter startup time 224 and transmits the generated operation command data 331 to the communication unit 111. The set temperature 335 of any operation command data 331 is set to the average value calculated in step S27.

In the present embodiment, the production date 223 of the specification data 221 and the implementation date 233 of the inspection data 231 are at least the time when each device 151 is inspected and the time when each device 151 is manufactured for three or more devices 151. It is an example of the apparatus information which shows either. The activation time 224 of the specification data 221 is an example of activation information indicating the time from when each device 151 is commanded to be activated until the activation is completed. The latest device 151 is an example of a first device that the deterioration diagnosis apparatus 101 uses as a reference for deterioration diagnosis. The oldest device 151 is an example of a second device that the deterioration diagnosis apparatus 101 is subject to deterioration diagnosis.

As described above, in step S25, the command unit 112 acquires device information from the recording medium 107. Further, the command unit 112 acquires activation information from the recording medium 107. In step S26, the command unit 112 selects the first device and the second device from the three or more devices 151 based on the acquired device information. Specifically, the command unit 112 selects the device 151 indicated by the latest device information as the first device. In addition, the command unit 112 selects the device 151 whose device information indicates the oldest time as the second device. In step S27, the command unit 112 calculates an average value of the outside air temperatures measured by the first device and the second device. In step S28, the command unit 112 commands activation of the selected first device and second device. Specifically, the command unit 112 commands the first device and the second device to start operation using the calculated average value as the set temperature. The command unit 112 commands the start from the device 151 whose long time is indicated by the acquired start information among the first device and the second device.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the operation command data 331 from the command unit 112. In step S 12, the communication unit 111 generates communication data 301 including the received operation command data 331 as data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the operation command data 331. The communication unit 111 transmits the generated communication data 301 to the serial transmission path 121.

9, the vehicle interface unit 141 receives the communication data 301 from the terminal device 131. The vehicle interface unit 141 extracts driving command data 331 from the received communication data 301. In step S75, the vehicle interface unit 141 connected to the device 151 indicated by the device ID 332 of the driving command data 331 causes the driving response data 341 to be output to the device 151 in accordance with the driving command data 331. The other vehicle interface units 141 simply discard the driving command data 331. In step S 76, the vehicle interface unit 141 generates communication data 301 including the driving response data 341 output from the device 151 as the data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the driving response data 341. The vehicle interface unit 141 transmits the generated communication data 301 to the terminal device 131.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the communication data 301 from the serial transmission path 121. In step S 14, the communication unit 111 extracts driving response data 341 from the received communication data 301. The communication unit 111 transmits the extracted operation response data 341 to the command unit 112.

5, the command unit 112 of the deterioration diagnosis apparatus 101 receives the operation response data 341 from the communication unit 111. When the operation response data 341 from all the devices 151 is received, in step S30, the command unit 112 notifies the diagnosis unit 113 that the latest device 151 and the oldest device 151 have been commanded to start. Specifically, the command unit 112 outputs the device ID 343 included in the operation response data 341 of the latest device 151 and the device ID 343 included in the operation response data 341 of the oldest device 151 to the diagnosis unit 113.

6, the diagnosis unit 113 of the deterioration diagnosis apparatus 101 receives the notification from the command unit 112. In step S 32, the diagnosis unit 113 generates the latest measurement request data 351 of the device 151 and the measurement request data 351 of the oldest device 151. The diagnosis unit 113 does not generate measurement request data 351 for the remaining devices 151. In step S 33, the diagnosis unit 113 transmits the generated measurement request data 351 to the communication unit 111.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the measurement request data 351 from the command unit 112. In step S 12, the communication unit 111 generates communication data 301 including the received measurement request data 351 as data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the measurement request data 351. The communication unit 111 transmits the generated communication data 301 to the serial transmission path 121.

9, the vehicle interface unit 141 receives the communication data 301 from the terminal device 131. The vehicle interface unit 141 extracts the measurement request data 351 from the received communication data 301. In step S78, the vehicle interface unit 141 connected to the device 151 indicated by the device ID 352 of the measurement request data 351 causes the device 151 to output the measurement response data 361 in accordance with the measurement request data 351. Other vehicle interface units 141 simply discard the measurement request data 351. In step S 79, the vehicle interface unit 141 generates communication data 301 including the measurement response data 361 output from the device 151 as the data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the measurement response data 361. The vehicle interface unit 141 transmits the generated communication data 301 to the terminal device 131. In step S80, the vehicle interface unit 141 returns to the process of step S78 until the communication data 301 including the measurement response data 361 as the data 303 is transmitted for a certain time period. That is, the vehicle interface unit 141 repeatedly transmits the communication data 301 including the measurement response data 361 until a predetermined time has elapsed.

As described above, in step S63, the terminal device 131 acquires, from the first device, first data indicating a value measured by the first device after being commanded by the command unit 112. In addition, the terminal device 131 acquires second data indicating a value measured by the second device after being commanded by the command unit 112 from the second device. In step S 64, the terminal device 131 transmits the acquired first data to the deterioration diagnosis device 101. Further, the terminal device 131 transmits the acquired second data to the deterioration diagnosis device 101.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the communication data 301 from the serial transmission path 121. In step S 14, the communication unit 111 extracts measurement response data 361 from the received communication data 301. The communication unit 111 transmits the extracted measurement response data 361 to the diagnosis unit 113.

6, the diagnosis unit 113 of the degradation diagnosis apparatus 101 receives the measurement response data 361 from the communication unit 111. In step S 35, the diagnosis unit 113 converts the measurement response data 361 into the measurement data 201 and accumulates the measurement data 201 in the recording medium 107. The same values as the time 364 and the device ID 363 included in the measurement response data 361 are set in the time 202 and the device ID 203 of the measurement data 201, respectively. Further, the current value 204 of the indoor heat exchanger, the current value 205 of the outdoor heat exchanger, and the current value 206 of the compressor of the measurement data 201 include the current value 365 of the indoor heat exchanger included in the measurement response data 361, The same value as the current value 366 of the outdoor heat exchanger and the current value 367 of the compressor is set. Further, the pressure 207 of the high-pressure side pipe of the compressor and the pressure 208 of the low-pressure side pipe of the compressor in the measurement data 201 include the pressure 368 of the high-pressure side pipe of the compressor and the low pressure of the compressor included in the measurement response data 361. The same value as the pressure 369 of the side pipe is set. In step S36, the diagnosis unit 113 includes the current value 365 of the indoor heat exchanger, the current value 366 of the outdoor heat exchanger, the current value 367 of the compressor, and the high pressure of the compressor included in the measurement response data 361 received so far. An approximate curve is calculated for the pressure 368 of the side pipe and the pressure 369 of the low pressure side pipe of the compressor. In step S37, the diagnosis unit 113 determines whether the approximate curve of the latest device 151 is a steady curve. The steady curve is an approximate curve obtained when the device 151 completes startup and is operating normally. The data of the steady curve is stored in advance in the recording medium 107 and acquired by the diagnosis unit 113. If the approximate curve of the latest device 151 is not a steady curve, the diagnosis unit 113 returns to the process of step S34 because the activation of the latest device 151 has not been completed. That is, the diagnosis unit 113 waits for the next measurement response data 361. When the approximate curve of the latest device 151 is a steady curve, since the startup of the latest device 151 has been completed, the diagnosis unit 113 determines that the approximate curve of the latest device 151 and the oldest device 151 are the same in step S38. Compare the fitted curve. When the difference exceeds the threshold value, the diagnosis unit 113 determines that the oldest device 151 has deteriorated. When the difference does not exceed the threshold value, the diagnosis unit 113 determines that the oldest device 151 has not deteriorated and is normal. In step S39, the diagnosis unit 113 notifies the display unit 115 of the determination result. In step S40, the diagnosis unit 113 notifies the setting unit 114 that the deterioration diagnosis of the oldest device 151 has been performed together with the determination result. The determination results include the current value 365 of the indoor heat exchanger, the current value 366 of the outdoor heat exchanger, the current value 367 of the compressor, the pressure 368 of the high pressure side pipe of the compressor, and the pressure of the low pressure side pipe of the compressor. An individual determination result may be notified for each of 369, or only a comprehensive determination result may be notified for the entire device 151.

As described above, in step S34, the diagnosis unit 113 sequentially acquires the first data. In step S35, the diagnosis unit 113 accumulates the first data as time series data. In step S38, the diagnosis unit 113 diagnoses the deterioration of the second device by comparing the first data with the second data. In the present embodiment, the diagnosis unit 113 diagnoses the deterioration of the second device after the time series data satisfies the condition for determining that the first device has completed activation. The condition for determining that the first device has completed activation is specifically defined by a steady curve.

10, the display unit 115 of the deterioration diagnosis apparatus 101 receives the notification from the diagnosis unit 113. In step S94, the display unit 115 displays the determination result from the diagnosis unit 113 as a result of the deterioration diagnosis on the operation screen.

7, the setting unit 114 of the deterioration diagnosis apparatus 101 receives a notification from the diagnosis unit 113. In step S52, the setting unit 114 acquires, from the recording medium 107, the determination data 211 in which the determination result from the diagnosis unit 113 matches the deterioration diagnosis result 212. The setting unit 114 acquires the operation determination 213 included in the acquired determination data 211. In step S 53, when the operation determination 213 is “operation”, the setting unit 114 generates operation command data 331 including an operation command 334 for turning on the air conditioner. When the operation determination 213 is “cut operation”, the setting unit 114 generates operation command data 331 including an operation command 334 for turning off the air conditioner. When the operation determination 213 is “operation change”, the setting unit 114 generates operation command data 331 including the changed set temperature 335. In any case, the device ID 332 of the operation command data 331 is set to the serial number of the air conditioner corresponding to the oldest device 151. The setting unit 114 transmits the generated operation command data 331 to the communication unit 111.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the operation command data 331 from the setting unit 114. In step S 12, the communication unit 111 generates communication data 301 including the received operation command data 331 as data 303. The data type 302 of the communication data 301 is set to a numerical value indicating the operation command data 331. The communication unit 111 transmits the generated communication data 301 to the serial transmission path 121.

4, the communication unit 111 of the deterioration diagnosis apparatus 101 receives the communication data 301 from the serial transmission path 121. In step S 14, the communication unit 111 extracts driving response data 341 from the received communication data 301. The communication unit 111 transmits the extracted operation response data 341 to the setting unit 114.

7, the setting unit 114 of the deterioration diagnosis apparatus 101 receives the operation response data 341 from the communication unit 111. In step S 55, the setting unit 114 notifies the display unit 115 of the operation determination 213 of the oldest device 151 and the completion of the setting based on the determination 213.

10, the display unit 115 of the deterioration diagnosis apparatus 101 receives the notification from the setting unit 114. In step S96, the display unit 115 displays the content notified from the setting unit 114 on the operation screen. The driver of the train 900 performs an operation for confirming the contents displayed on the operation screen from the operation screen. In step S97, the display unit 115 displays a message indicating the end of the deterioration diagnosis on the operation screen.

*** Explanation of the effect of the embodiment ***
In the present embodiment, the deterioration of the second device is diagnosed by comparing the data of the first device and the second device selected from the three or more devices 151. Since it is not necessary to analyze the data of all the devices 151, the time required for the deterioration diagnosis can be shortened.

In the present embodiment, the air conditioner to be activated is selected depending on the date of manufacture of the air conditioner or the date of periodic inspection. A new air conditioner that has been recently inspected or has not yet been inspected is unlikely to be degraded. Therefore, an accurate deterioration diagnosis can be performed by selecting such an air conditioner as a reference. In addition, an air conditioner that has not been inspected for a while is relatively likely to be deteriorated. Therefore, the time required for the deterioration diagnosis can be shortened by preferentially diagnosing such deterioration of the air conditioner.

In the present embodiment, the activation order of the air conditioner is set in the order of long activation time based on the test data before shipment of the air conditioner. Since the time required for obtaining the data necessary for the deterioration diagnosis from all the activated air conditioners is the shortest, the time required for the deterioration diagnosis can be shortened.

In the present embodiment, the time when the start of the air conditioner is completed is detected by grasping the fluctuation tendency of values obtained by measuring current, pressure, and the like. In the deterioration diagnosis, since the value measured by the air conditioner after the start-up is completed can be determined and used, an accurate deterioration diagnosis can be performed.

Although the deterioration diagnosis of the air conditioner may be performed during the operation of the train 900, the accuracy of the deterioration diagnosis may be reduced during the operation due to the influence of temperature changes caused by door opening and closing, boarding rate differences, and the like. Therefore, it is desirable to perform a deterioration diagnosis of the air conditioner before the train 900 is operated. In the present embodiment, deterioration diagnosis system 100 provided in train 900 activates the air conditioner with the setting of the operation of the air conditioner as a setting close to environmental conditions such as the outside air temperature. Therefore, the accuracy of deterioration diagnosis can be further increased.

*** Other configurations ***
In the present embodiment, the functional elements of the deterioration diagnosis apparatus 101 are realized by software, but as a modification, the functional elements of the deterioration diagnosis apparatus 101 may be realized by hardware. About this modification, the difference with this Embodiment is mainly demonstrated.

Referring to FIG. 11, the configuration of degradation diagnosis system 100 according to a modification of the present embodiment will be described.

The deterioration diagnosis device 101 includes hardware such as a processing circuit 109, an input device 104, a display 105, a communication device 106, and a recording medium 107.

The processing circuit 109 is a dedicated electronic circuit that implements the functional elements of the deterioration diagnosis apparatus 101. Specifically, the processing circuit 109 may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, a logic IC, a GA (Gate Array), an ASIC (Application Specific Integrated Circuit), or FPGA (Field-Programmable / Gate / Array).

The functional elements of the degradation diagnosis apparatus 101 may be realized by one processing circuit 109 or may be realized by being distributed to a plurality of processing circuits 109.

As another modification, the functional elements of the deterioration diagnosis apparatus 101 may be realized by a combination of software and hardware.

The processor 102, the memory 103, and the processing circuit 109 are collectively referred to as a “processing circuit”. That is, regardless of the configuration of the deterioration diagnosis apparatus 101 shown in FIGS. 1 and 11, the functional elements of the deterioration diagnosis apparatus 101 are realized by the processing circuitry.

The “unit” of the communication unit 111, the command unit 112, the diagnosis unit 113, the setting unit 114, and the display unit 115 of the deterioration diagnosis apparatus 101 may be read as “process”, “procedure”, or “processing”.

As mentioned above, although embodiment of this invention was described, you may implement this embodiment partially. Specifically, among the functional elements of the degradation diagnosis apparatus 101, only some of the functional elements may be employed, or only some of the functional elements may be employed. . In addition, this invention is not limited to this embodiment, A various change is possible as needed.

100 deterioration diagnosis system, 101 deterioration diagnosis device, 102 processor, 103 memory, 104 input device, 105 display, 106 communication device, 107 recording medium, 109 processing circuit, 111 communication unit, 112 command unit, 113 diagnosis unit, 114 setting unit , 115 display unit, 121 serial transmission path, 131 terminal device, 141 vehicle interface unit, 151 device, 201 measurement data, 202 time, 203 device ID, 204 current value, 205 current value, 206 current value, 207 pressure, 208 pressure , 211 judgment data, 212 result, 213 judgment, 221 specification data, 222 equipment ID, 223 manufacturing date, 224 start-up time, 231 inspection data, 232 equipment ID, 233 implementation date, 234 implementation , 301 communication data, 302 data type, 303 data, 311 outside temperature request data, 312 device ID, 313 source, 314 outside temperature request, 321 outside temperature notification data, 322 destination, 323 device ID, 324 outside temperature, 331 Operation command data, 332 device ID, 333 transmission source, 334 operation command, 335 set temperature, 341 operation response data, 342 destination, 343 device ID, 344 operation response, 351 measurement request data, 352 device ID, 353 transmission source, 354 Information request, 361 measurement response data, 362 destination, 363 device ID, 364 time, 365 current value, 366 current value, 367 current value, 368 pressure, 369 pressure, 900 train, 901 vehicle.

Claims

Acquire device information indicating at least one of the time when each device was inspected and the time when each device was manufactured for three or more devices from the recording medium, and based on the acquired device information, the three or more devices A command unit that selects a first device that is a reference for deterioration diagnosis and a second device that is a target for deterioration diagnosis, and instructs the selected first device and second device to start;
By comparing the first data indicating the value measured by the first device after the command by the command unit and the second data indicating the value measured by the second device after the command by the command unit, A deterioration diagnosis apparatus comprising: a diagnosis unit that diagnoses deterioration of the second device.
2. The deterioration diagnosis apparatus according to claim 1, wherein the command unit selects a device whose latest time is indicated by the device information as the first device.
The deterioration diagnosis device according to claim 1 or 2, wherein the command unit selects, as the second device, a device whose oldest time is indicated in the device information.
The three or more devices are air conditioners each having a function of measuring the outside air temperature,
The command unit calculates an average value of the outside air temperature measured by the first device and the second device, and operates the first device and the second device using the average value as a set temperature. The deterioration diagnosis apparatus according to claim 1, wherein start is commanded as an activation.
The diagnostic unit sequentially acquires the first data, accumulates the first data as time-series data, and after the time-series data satisfies a condition for determining that the first device has completed startup The deterioration diagnosis apparatus according to claim 1, which diagnoses deterioration of the second device.
The command unit acquires start information indicating a time from when each device is instructed to start up to completion of start-up from the recording medium, and uses the acquired start information among the first device and the second device. The deterioration diagnosis apparatus according to claim 1, wherein activation is instructed first from a device for which a long time is indicated.
The deterioration diagnosis device according to any one of claims 1 to 6,
A deterioration diagnosis system comprising: a terminal device that acquires the first data and the second data from the first device and the second device, respectively, and transmits the first data and the second data to the deterioration diagnosis device.
The deterioration diagnosis system according to claim 7;
A train comprising a plurality of vehicles in which the deterioration diagnosis device, the terminal device, and the three or more devices are installed.
The computer acquires device information indicating at least one of the time when each device was inspected for three or more devices and the time when each device was manufactured from the recording medium, and based on the acquired device information, the three devices From the above devices, select the first device as a reference for deterioration diagnosis and the second device as a target for deterioration diagnosis, and instruct the selected first device and second device to start,
The computer compares the first data indicating the value measured by the first device after the start command and the second data indicating the value measured by the second device after the start command, A deterioration diagnosis method for diagnosing deterioration of the second device.
On the computer,
Acquire device information indicating at least one of the time when each device was inspected and the time when each device was manufactured for three or more devices from the recording medium, and based on the acquired device information, the three or more devices A process for selecting a first device as a reference for deterioration diagnosis and a second device as a target for deterioration diagnosis, and instructing the selected first device and second device to start;
By comparing the first data indicating the value measured by the first device after the start command and the second data indicating the value measured by the second device after the start command, A deterioration diagnosis program that executes processing for diagnosing deterioration.