Train configuration information extraction device, train configuration information extraction system, and train configuration information extraction method

Abstract

To provide a train constitution information extraction apparatus that enables a user to easily extract facilities mounted on a train and other facilities having been used simultaneously in the past.SOLUTION: A train constitution information extraction apparatus extracts a plurality of facilities mounted on a train, and comprises: a specified facility acquisition part which acquires information representing specified facilities specified among the plurality of facilities; a specified period acquisition part which acquires information representing a specified period; a facility extraction part which extracts information representing same-train facilities as other facilities mounted on the train where the specified facilities were mounted in the specified period; and an output part which outputs the extracted information representing the same-train facilities as extraction information.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present disclosure relates to a train configuration information extraction device, a train configuration information extraction system, and a train configuration information extraction method that extract equipment mounted on a train. [Background technology]

[0002] Trains are equipped with numerous pieces of equipment, such as inverters, power units, and gate control units. When a failure occurs in one piece of equipment, the operating status of not only the failed equipment but also other pieces of equipment may need to be referenced to identify the cause of the failure. For example, Patent Document 1 discloses a technology for visualizing the operating status of equipment in an easy-to-understand manner, which makes it easier to identify the cause of the failure based on the operating status of the failed equipment and other pieces of equipment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-139950 Summary of the Invention [Problem to be solved by the invention]

[0004] Equipment installed on a train may be transferred to another train for use. Therefore, the equipment installed on the train may have been used in the past in a combination with other equipment different from the one currently used. If the equipment that has failed and the equipment that has been used at the same time in the past are known, it may be easier to identify the cause of the failure. However, the technology disclosed in the above-mentioned Patent Document 1 cannot identify the equipment that has failed and the other equipment that has been used at the same time in the past.

[0005] The present disclosure has been made in consideration of the above, and aims to provide a train configuration information extraction device that allows a user to easily extract equipment installed on a train and other equipment that has been used simultaneously in the past. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the objectives, the train configuration information extraction device disclosed herein is a train configuration information extraction device that extracts multiple pieces of equipment installed on a train, and includes a designated equipment acquisition unit that acquires information indicating designated equipment, which is equipment designated from the multiple pieces of equipment; a designated time acquisition unit that acquires information indicating a designated time period that specifies a time period; an equipment extraction unit that extracts information indicating equipment in the same row, which is other equipment installed on the train on which the designated equipment was installed at the designated time period; and an output unit that outputs the extracted information indicating the equipment in the same row as extracted information. [Effects of the Invention]

[0007] According to the present disclosure, it is possible to obtain a train configuration information extraction device that allows a user to easily extract equipment installed on a train and other equipment that has been used simultaneously in the past. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of equipment installed on a train, which is extracted by the train configuration information extraction device according to the first embodiment. [Figure 2] FIG. 1 is a diagram illustrating a train configuration information extraction system according to a first embodiment. [Figure 3] An image diagram of information stored in a tree structure in a storage unit according to the first embodiment. [Figure 4] The information shown in Figure 3 is presented in table format. [Figure 5] FIG. 1 is an image diagram of information stored in a tree structure in a storage unit according to the first embodiment, showing a state in which equipment has been replaced. [Figure 6] The information shown in Figure 5 is presented in table format. [Figure 7] FIG. 10 is an image diagram of information stored in a tree structure in a storage unit according to the first embodiment, showing a state in which a serial number has been input. [Figure 8] The information shown in Figure 7 is shown in table format. [Figure 9] 1 is a flowchart showing a procedure for extracting equipment in the same row by an extracting unit according to the first embodiment. [Figure 10] FIG. 1 is a diagram illustrating an example of a hardware configuration of a train configuration information extraction device according to a first embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a train configuration information extraction device, a train configuration information extraction system, and a train configuration information extraction method according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0010] Embodiment 1 FIG. 1 is a diagram showing an example of equipment installed on a train, which is extracted by the train configuration information extraction device according to the first embodiment. A train 1 is, for example, a group of multiple cars 3 coupled together and running on a track 2. A train formation name is given to the train 1 to distinguish it from other trains 1, and this train formation name is also simply referred to as a train formation. The cars 3 are equipped with various components (equipment) necessary for operation, and in the first embodiment, these components and the elements collectively made up of these multiple components are referred to as equipment 4. The car 3 is given a car name so that it can be distinguished from other cars 3.

[0011] 1, the equipment 4 mounted on the vehicle 3 includes a power unit 10 and a gate control unit 20. The equipment 4 is mounted on each of the plurality of vehicles 3.

[0012] 2 is a diagram illustrating a train configuration information extraction system according to the first embodiment. The train configuration information extraction device 30 includes a storage unit 40, a buffer 45, an acquisition unit 50, an extraction unit 60, an output unit 70, an input device 5, and an output device 6. The buffer 45 is a temporary storage unit that temporarily stores information.

[0013] The memory unit 40 stores information related to the equipment 4 of the train 1 in a tree structure. Fig. 3 is an image diagram of the information stored in the tree structure in the memory unit in the first embodiment. In Fig. 3, it can be seen that VVVF inverter devices 80A, 80B are installed in cars 3 with car names "4001" and "4201" included in a train with a formation name of "4051F".

[0014] Each of the VVVF inverter devices 80A and 80B includes equipment groups such as first group 91A and 91B and second group 92A and 92B. First group 91A and second group 92A are stored in memory unit 40 as child equipment of VVVF inverter device 80A, and first group 91B and second group 92B are stored in memory unit 40 as child equipment of VVVF inverter device 80B.

[0015] Group 1 91A includes equipment 4, power unit 101 and gate control unit 201, group 2 92A includes equipment 4, power unit 102 and gate control unit 202, group 1 91B includes equipment 4, power unit 103 and gate control unit 203, and group 2 92B includes equipment 4, power unit 104 and gate control unit 204.

[0016] That is, it can be seen that the train 1 with the formation name "4051F" is equipped with power units 101 to 104 and gate control units 201 to 204 as the equipment 4.

[0017] Fig. 4 is a diagram showing the information shown in Fig. 3 in the form of table information. The tree-structured information shown in Fig. 3 is stored in storage unit 40 as table information as shown in Fig. 4. The table information includes an ID (Identification) column 401, a VER column 402, a parent ID column 403, a parent VER column 404, a formation column 405, a vehicle column 406, an equipment name column 407, a model name column 408, a serial number column 409, and an update date column 410, and the information entered in each column is stored in association with one another.

[0018] The ID column 401 contains a unique number assigned to each device, group, and component. The VER column 402 contains information indicating the version of the input information for each piece of equipment 4. In the first embodiment, a number is entered, and one is added each time the information is updated. The parent ID column 403 contains information indicating the ID of the parent equipment. For example, for the power unit 101, the parent ID column 403 contains "2," which is the ID of the first group 91A. Equipment with "null" entered in the parent ID column is the highest-level equipment that does not have a parent equipment. In the first embodiment, the VVVF inverter devices 80A and 80B are described as the highest-level equipment. The highest-level equipment is determined by the tree structure stored in the storage unit 40. In other words, the highest-level equipment is equipment that does not have a parent equipment in the tree structure stored in the storage unit 40. For example, in the example of FIG. 4, a vehicle does not have a parent equipment, and an ID is assigned to the vehicle. If the ID assigned to the vehicle is stored in the parent ID column of the VVVF inverter device 80A, for example, the highest-level equipment is the vehicle. Furthermore, if an ID is assigned to the formation and the ID assigned to the formation is stored in the parent ID field of the vehicle, the formation will be the highest level facility. In addition, in the first embodiment, the power unit and the control unit are described as examples of the facilities extracted by the train configuration information extraction device, but the components that further constitute the power unit may also be considered as facilities, or the vehicles, devices, or groups may also be considered as facilities.

[0019] The train formation name of train 1 on which the equipment is installed is entered in the train formation field 405. In the present embodiment 1, "4015F" is entered in the train formation field 405. The vehicle name of vehicle 3 on which the equipment is installed is entered in the vehicle field 406. In the present embodiment 1, "4001" or "4201" is entered in the vehicle field 406.

[0020] The equipment name of each piece of equipment is entered in the equipment name column 407. The equipment name of each piece of equipment is the name written in the equipment column, group column, and component column in FIG. 3. The model name column 408 is entered with the model name of each piece of equipment. If the model name is unknown, no information needs to be entered in the model name column 408. The serial number column 409 is entered with the serial number of each piece of equipment. If the serial number is unknown, no information needs to be entered in the serial number column 409.

[0021] The update date column 410 contains the date on which each piece of equipment was installed or the date on which the information on each piece of equipment was updated. Information on each piece of equipment is updated, for example, when an unknown model number is identified and the model number is entered. When the update date information is updated, the version information in the VER column is also updated and the number indicating the version is incremented by 1. In the example shown in Figure 4, all update dates are January 1, 2001. The reason the update dates for all pieces of equipment match is that January 1, 2001 was the date on which train 1, with train formation name "4051F," began operation.

[0022] Next, tree structure information and table information are shown for when equipment 4 is exchanged between different cars 3 in the same formation. Fig. 5 is an image diagram of information stored in a tree structure in the storage unit in the first embodiment, showing the state after the equipment has been exchanged. Fig. 6 is a diagram showing the information shown in Fig. 5 in the form of table information.

[0023] In the example shown in Figures 5 and 6, the power unit 101 installed in the vehicle 3 with the vehicle name "4001" has been replaced with the power unit 103 installed in the vehicle 3 with the vehicle name "4201".

[0024] At this time, the table information stored in the storage unit 40 is rewritten as shown in Fig. 6. In Fig. 6, the shaded columns indicate columns where the information has been updated. Since the parent equipment of the power unit 101 has been changed from the first group 91A to the first group 91B, the information in the parent ID column 403 indicating the ID of the parent equipment is updated (see column 403a). More specifically, the ID of the first group 91A, "2," is changed to the ID of the first group 91B, "9."

[0025] The date on which the equipment was replaced is entered in the update date field 410 of the power unit 101. In the example shown in Fig. 6, the equipment was replaced on April 1, 2001, and "2001 / 4 / 1" is entered in the update date field (see field 410a).

[0026] Furthermore, since the information on the power unit 101 has been updated, the value entered in the VER column 402 and indicating the version of the information on the power unit 101 is incremented by 1. Specifically, the version is changed from "1" to "2" (see column 402a).

[0027] Since the parent equipment of the power unit 103 has been changed from the first group 91B to the first group 91A, the information in the parent ID column 403 indicating the ID of the parent equipment is updated (see column 403b). More specifically, the ID of the first group 91B, "9," is changed to the ID of the first group 91A, "2."

[0028] Furthermore, the date on which the equipment was replaced is entered in the update date field 410 of the power unit 103. The date entered in the update date field 410 is the date on which the equipment was replaced with the power unit 101, and so "2001 / 4 / 1" is entered, the same as in the update date field 410 of the power unit 101 (see field 410b).

[0029] Furthermore, since the information on the power unit 103 has been updated, the value entered in the VER column 402 and indicating the version of the information on the power unit 103 is incremented by 1. Specifically, the version is changed from "1" to "2" (see column 402b).

[0030] When the table information is updated, the information before the update of the updated equipment is not discarded. As shown on the right side of the table information in Fig. 6, the information of the power units 101, 103 before the update is copied and stored in the storage unit 40 as past history information. When the equipment is removed from the train 1 and stored in a warehouse, the information about the removed equipment is not discarded but is copied and stored in the storage unit 40 as past history information.

[0031] Next, tree structure information and table information are shown for the case where information has been updated by inputting specification information such as the serial number of equipment 4, even though no equipment replacement has been performed. Fig. 7 is an image diagram of information stored in a tree structure in the storage unit in embodiment 1, showing the state after the serial number has been input. Fig. 8 is a diagram showing the information shown in Fig. 7 in the form of table information.

[0032] In the examples shown in Figures 7 and 8, the serial number of the VVVF inverter device 80B, which was unknown when train 1 began operation, has been identified, and the information has been updated. No equipment replacement or the like has been performed, so there is no change in the tree structure. However, as shown in Figure 8, the serial number column 409 of the VVVF inverter device 80B has been updated (see column 409a), and accordingly, the version information in the VER column 402 has been updated from "1" to "2" (see column 402c). The update date column 410 has also been updated to the date the serial number was entered (see column 410c). Note that although the VVVF inverter device 80B is a parent facility having child facilities, even if the version of the VVVF inverter device 80B is updated, the versions of the child facilities are not updated.

[0033] The information before the update of the updated equipment is not discarded. As shown to the right of the table information in Fig. 8, the information of VVVF inverter device 80B before the update is copied and stored in memory unit 40 separately from the table information.

[0034] According to Figures 3 to 8, train 1, whose formation name is "4051F," began operation on January 1, 2001, power unit 101 and power unit 103 were replaced on April 1, 2001, and the serial number of VVVF inverter device 80B was entered on April 15, 2001.

[0035] Returning to FIG. 2 , the acquisition unit 50 functions as a designated facility acquisition unit that acquires information indicating designated facility, which is facility 4 designated from among a plurality of facilities 4. The information indicating the designated facility is, for example, facility 4 in which a failure occurred during operation of the train 1, and is information input by operating the input device 5, for example. The input device 5 may be, for example, a keyboard operated by a user who inputs information, or may be a touch panel of a terminal device.

[0036] The acquisition unit 50 also functions as a designated time acquisition unit that acquires information indicating a designated time. The designated time in the first embodiment is a year, month, and date. The designated time indicates the time when the designated equipment was used, and, like the information indicating the designated equipment, is information that is input by operating an input unit (not shown). For example, when the designated equipment breaks down, it may be necessary to identify equipment 4 that was used at the same time as the designated equipment at a certain time in the past in order to identify the cause of the failure. In such a case, the certain time in the past is designated as the designated time.

[0037] The extraction unit 60 functions as an equipment extraction unit that extracts information indicating equipment in the same train, which is other equipment 4 that was installed on the train on which the specified equipment was installed at the specified time. Fig. 9 is a flowchart showing the procedure for extracting equipment in the same train by the extraction unit in the first embodiment.

[0038] The following description will be given taking as an example a case where the specified equipment is power unit 103 and the specified time is April 10, 2001. In this case, it is necessary to know the table information shown on the left side of Fig. 6, but the information stored in storage unit 40 has been updated to the information shown in Fig. 8, and the table information shown in Fig. 6 cannot be directly referenced. Therefore, the information to be searched is the latest information, which is shown in Fig. 8.

[0039] Here, the extraction unit 60 first extracts information from the information about the designated equipment stored in the storage unit 40 that has an update date that is before the designated time and closest to the designated time, and searches for parent equipment of the designated equipment that exists before the designated time based on that information (step S1). There are two pieces of information about the power unit 103 shown in FIG. 8, and the most recent information that has an update date before the designated time is the information on the right, which is past information. Therefore, this information on the right is the search target. In the information that is the search target, "9" is entered in the parent ID column 403 of the power unit 103 (see column 403c), so group 1 91B, which has "9" entered in the ID column 401, is searched for as the parent equipment.

[0040] The extraction unit 60 checks whether the retrieved parent equipment has further parent information, and if parent information is found (Yes in step S2), searches for that parent equipment. Since "8" is entered in the parent ID column 403 of the first group 91B, the VVVF inverter device 80B, which has "8" entered in the ID column 401, is retrieved as the parent equipment.

[0041] If "null" is entered in the parent ID field 403 and there is no further parent information, such as for VVVF inverter device 80B found as the parent equipment (step S2, No), VVVF inverter device 80A is stored in buffer 45 as the highest level equipment with no parent information (step S3). Steps S1 and S2 are used to trace the parent equipment of the specified equipment.

[0042] Next, the extraction unit 60 searches for child equipment of the highest-level equipment (step S4). That is, the extraction unit 60 searches for equipment with "8" entered in the parent ID field 403 as child equipment. If a child equipment is found (step S5, Yes), the extraction unit 60 stores the child equipment in the buffer 45 as the corresponding equipment (step S6). Then, the extraction unit 60 searches for equipment with the ID of the child equipment entered in the parent ID field 403 as further child equipment (step S4). This process is repeated until no child equipment remains (step S5, No). Here, the second group 92B is searched for as child equipment of the VVVF inverter device 80B, and the power unit 104 and the gate control unit 204 are searched for as child equipment of the second group 92B and stored in the buffer 45. In addition, the gate control unit 203, which is a child equipment of the first group 91B, is also searched for and stored in the buffer 45.

[0043] Next, the extraction unit 60 searches for equipment at the same level in the tree structure as the top-level equipment (step S7). Equipment at the same level is equipment for which "null" is entered in the parent ID field 403, similar to the VVVF inverter device 80B. If equipment at the same level is found (step S7, Yes), the found equipment in the same row is stored in the buffer 45 (step S6), and further child equipment is searched for (step S4). Here, the VVVF inverter device 80A, for which "null" is entered in the parent ID field 403, is found as equipment at the same level and in the same row, and stored in the buffer 45. The first group 91A, the second group 92A, the power units 101 and 102, and the gate control units 201 and 202 are found as child equipment in the same row, and stored in the buffer 45. Steps S4 to S7 trace the top-level equipment and the child equipment of the equipment at the same level as the top-level equipment.

[0044] If no equipment on the same hierarchical level is found (step S7, No), duplicate equipment is deleted from the information stored in buffer 45 (step S8), and the information in buffer 45 is output to output unit 70 (step S9). As described above, the search for child equipment is not limited based on the update date, and multiple pieces of equipment with the same ID exist in the information to be searched, so equipment may be duplicated in the search results. For example, in FIG. 8, the update dates of the two pieces of information for power unit 101 are both before April 10, 2001, which is the specified time period, so two pieces of information are extracted for power unit 101. In step S9, information other than the latest version of the duplicated information is deleted. By going through the steps described above, the table information for the specified time period, i.e., the table information shown in FIG. 6, can be output to output unit 70 as information on equipment in the same hierarchy.

[0045] The output unit 70 outputs the information extracted by the extraction unit 60 to the output device 6. The output device 6 is, for example, a printer or a display. If it is a printer, the extracted information is printed out, and if it is a display, the extracted information is displayed on the screen. The format of the printed or displayed information may be a tree structure as shown in FIG. 3 or a table format as shown in FIG. 4. The information may be output from the output unit 70 to the output device 6 via a network such as the Internet.

[0046] 10 is a diagram illustrating an example of a hardware configuration of a train configuration information extraction device according to the first embodiment. The train configuration information extraction device 30 includes a processor 7 that executes various processes and a memory 8 that stores information. The processor 7 and the memory 8 can transmit and receive information to and from each other via a bus 9.

[0047] The storage unit 40 and the buffer 45 are realized by the memory 8. The processor 7 functions as an acquisition unit 50, an extraction unit 60, and an output unit 70 by reading and executing the programs stored in the memory 8.

[0048] The processor 7 is an example of a processing circuit, and includes one or more of a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and a system LSI (Large Scale Integration).

[0049] The memory 8 includes one or more of RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), and EEPROM (Electrically Erasable Programmable Read Only Memory). The memory 8 also includes a recording medium on which a computer-readable program is recorded. Such a recording medium includes one or more of non-volatile or volatile semiconductor memory, a magnetic disk, a flexible memory, an optical disk, a compact disk, and a DVD (Digital Versatile Disc). The memory 8 may include multiple elements such as RAM and ROM.

[0050] According to the train information extraction device 30 described above, a user can easily extract configuration information of equipment installed on past trains to understand the status of the equipment, and thus past operation information can be used in addition to the current information. For example, when identifying the cause of equipment failure, using past operation information can sometimes make it easier to identify the cause. In addition, information about equipment removed from the train 1 is stored in the storage unit 40 as past history information, so that even equipment that is not currently in use can be extracted without omission.

[0051] Furthermore, when information is updated, train configuration information can be extracted using a database that stores only the past information of the updated equipment, so the amount of data stored in the storage unit 40 can be reduced compared to when all of the information, including equipment that has not been updated, is stored as past information each time the information is updated. Therefore, even if a train like the train 1 is equipped with a large number of pieces of equipment, the amount of data to be stored can be reduced.

[0052] Furthermore, even if duplicate information about the same equipment is extracted during the search process, unnecessary information is deleted when the information is output, so the information can be output in a manner that makes it easy for users to understand the operating status.

[0053] In the present embodiment, the extraction unit 60 functions as an equipment extraction unit that extracts information indicating equipment in the same train, which is other equipment 4 that was installed on the train 1 on which the specified equipment was installed at the specified time. Here, the common parent equipment of the equipment in the same train extracted by the extraction unit 60 is referred to as the common parent equipment. For example, the common parent equipment of the equipment in the same train extracted by the extraction unit 60 shown in FIG. 6 is the train set 4015F. That is, in the present embodiment, the common parent equipment is the train 1 (train set), but it may also be the car 3 or the VVVF inverter devices 80A, 80B. The common parent equipment may be set appropriately depending on the configuration information of the equipment that the user wants to extract.

[0054] When the common parent facility and the highest-level facility are set on the same hierarchical level, the train information extraction device 30 can omit step S7 shown in Fig. 9, thereby reducing the processing load. When the highest-level facility is set on a lower hierarchical level than the common parent facility, the extraction unit 60 can extract child facilities of the common parent facility by performing step S7 shown in Fig. 9.

[0055] The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies, or different embodiments may be combined with each other. It is also possible to omit or modify parts of the configurations as long as they do not deviate from the gist of the invention. [Explanation of symbols]

[0056] 1 Train, 2 Track, 3 Vehicle, 4 Constituent equipment, 5 Input device, 6 Output device, 7 Processor, 8 Memory, 10, 101, 102, 103, 104 Power unit, 20, 201, 202, 203, 204 Gate control unit, 30 Train configuration information extraction device, 40 Memory unit, 45 Buffer, 50 Acquisition unit, 60 Extraction unit, 70 Output unit, 80, 80A, 80B VVVF inverter device, 91A, 91B 1st group, 92A, 92B 2nd group, 401 ID column, 402 VER column, 403 Parent ID column, 404 Parent VER column, 405 Formation column, 406 Vehicle column, 407 Equipment name column, 408 Model name column, 409 Serial number column, 410 Update date column.

Claims

1. A train configuration information extraction device that extracts a plurality of pieces of equipment mounted on a train, a designated facility acquisition unit that acquires information indicating designated facility that is the facility designated from among the plurality of facilities; a designated time acquisition unit that acquires information indicating a designated time; an equipment extraction unit that extracts information indicating other equipment in the same row that was installed on the train on which the specified equipment was installed at the specified time; an output unit that outputs the extracted information indicating the equipment in the same row as extracted information; A train configuration information extraction device comprising:

2. Further comprising a storage unit in which a plurality of facilities are stored, the storage unit stores the facility, the date when information about the facility was updated, and the parent facility of the facility in a tree structure in which the facility is associated with the date when information about the facility was updated, and The train configuration information extraction device according to claim 1, characterized in that the equipment extraction unit traces parent equipment of the specified equipment before the specified time, searches for top-level equipment that does not have parent equipment, and traces child equipment of the top-level equipment to extract it as the equipment in the same train.

3. The train configuration information extraction device according to claim 2, characterized in that the equipment extraction unit searches for the highest equipment on the same hierarchical level that is equipment on the same hierarchical level as the highest equipment on the specified equipment, and extracts it as the equipment in the same train by tracing child equipment of the highest equipment on the same hierarchical level.

4. The storage unit stores version information indicating a version in association with the equipment, The train configuration information extraction device according to claim 3, further comprising an update unit that, when information about the facility is updated, updates the version associated with the facility and stores information about the facility before the update in the storage unit as is in the version before the update.

5. 5. The train configuration information extraction device according to claim 4, wherein, when the extracted equipment in the same row overlaps, the equipment extraction unit deletes information about the equipment in the same row whose version is not the latest from the extracted information.

6. The train configuration information extraction device according to any one of claims 1 to 5; an input device that transmits the input designated equipment and designated time to the designated equipment acquisition unit and the designated time acquisition unit; A train configuration information extraction system comprising:

7. A train configuration information extraction method for extracting a plurality of pieces of equipment mounted on a train, comprising: acquiring information indicating designated equipment that is the equipment designated from among the plurality of equipment; acquiring information indicating a specified time; extracting information indicating other equipment in the same train that was installed on the train on which the specified equipment was installed at the specified time; outputting the extracted information indicating the equipment in the same row as extracted information; A train configuration information extraction method comprising:

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