JP7645754B2 - CIRCUIT CHECK DEVICE, CIRCUIT CHECK METHOD, AND CIRCUIT CHECK PROGRAM - Google Patents

Description

The present invention relates to a circuit check device, a circuit check method, and a circuit check program.

Conventionally, a system is known that checks whether the design data for automotive wire harness products is a circuit configuration that complies with the required specifications. This system is configured to have an information processing device read data related to the circuit and automatically check it.

Patent documents 1 and 2 disclose technology that optimizes the accuracy and time of checking by narrowing down the number of circuit patterns to be checked, with the aim of shortening the checking time, taking into consideration that checking (inspecting) all circuits would take an enormous amount of time, since depending on the specifications of the automobile, the number of circuit patterns in a single vehicle's wire harness can be as many as tens of thousands of patterns.

JP 2011-170454 A JP 2011-250635 A

However, in the above-mentioned conventional technology, it takes time to check each circuit in the required specifications (required specifications). This is because multiple checks may be performed for each circuit, such as searching for the circuit of the data to be inspected (data to be checked), resetting the search information for each circuit, and checking all connections for each divided area or if there is a branch, for one circuit. In addition, since not all circuit patterns are checked, there is a possibility that checks may be missed. Specifically, in Patent Document 1, the check is performed for the pattern between two divided areas, so there is a possibility that checks of patterns considering three or more may be missed. In Patent Document 2, the check is performed for the pattern of a circuit with a high priority, so there is a problem that checks of patterns of circuits with a low priority may be missed. Therefore, there has been a demand for development of a technology that can shorten the time required to check the patterns of multiple circuits of a wire harness and reduce check omissions.

The present invention has been made in consideration of the above, and its purpose is to provide a circuit check device, a circuit check method, and a circuit check program that can shorten the time required to check multiple circuit patterns of a circuit wire harness and reduce missed checks.

In order to solve the above problems and achieve the above objects, the circuit check device of the present invention is a circuit check device equipped with a control unit that judges the correctness of manufacturing data designed for the connection of a wire harness based on specification data including information regarding the specifications of the circuit connection between auxiliary devices mounted on a specified device, and the control unit sets connections between multiple terminals connected to each other included in the manufacturing data as connection groups and stores them in a memory unit, extracts a first terminal and a second terminal of two ends connected to each other included in the specification data, and judges the correctness of the connection group in the manufacturing data based on whether the first terminal and the second terminal are included in the same connection group stored in the memory unit.

The circuit check device according to one aspect of the present invention is characterized in that, in the above invention, the control unit sets a plurality of divided areas into which the space in which the wire harness is arranged in the specified device is divided, sets the connection group for each divided area, sets an inclusive connection group that includes the connection groups set for each divided area based on information regarding the connection of electric wires between the plurality of divided areas and stores the inclusive connection group in the storage unit, and determines whether the inclusive connection group in the manufacturing data is correct or incorrect based on whether the first terminal and the second terminal are included in the same inclusive connection group stored in the storage unit.

The circuit check device according to one aspect of the present invention is characterized in that, in the above invention, the control unit converts the format of the manufacturing data into the format of the specification data using predetermined conversion data.

The circuit check device according to one aspect of the present invention is characterized in that, in the above invention, the specified device is a vehicle.

The circuit check method according to one aspect of the present invention is a circuit check method executed by a control unit that judges the correctness of manufacturing data designed for the connection of a wire harness based on specification data including information regarding the specifications of the circuit connection between auxiliary devices mounted on a specified device, and is characterized in that the method sets connections between multiple terminals connected to each other included in the manufacturing data as connection groups and stores them in a memory unit, extracts a first terminal and a second terminal of two ends connected to each other included in the specification data, and judges the correctness of the connection group in the manufacturing data based on whether the first terminal and the second terminal are included in the same connection group stored in the memory unit.

The circuit check program according to one aspect of the present invention is characterized in that it causes a control unit, which judges the correctness of manufacturing data designed for the connection of a wire harness based on specification data including information regarding the specifications of the connection of circuits between auxiliary devices mounted on a specified device, to set connections between multiple terminals connected to each other included in the manufacturing data as connection groups, store them in a memory unit, extract a first terminal and a second terminal of two connected ends included in the specification data, and judge the correctness of the connection group in the manufacturing data based on whether the first terminal and the second terminal are included in the same connection group stored in the memory unit.

The circuit check device, circuit check method, and circuit check program of the present invention can shorten the time required to check multiple circuit patterns of a wire harness and reduce missed checks.

FIG. 1 is a block diagram showing a schematic configuration of a circuit check device according to an embodiment of the present invention. FIG. 2 is a flow chart illustrating a circuit check method according to an embodiment of the present invention. FIG. 3 is a circuit diagram showing a first example of required specification data according to an embodiment of the present invention. FIG. 4 is a circuit diagram showing a second example of required specification data according to an embodiment of the present invention. FIG. 5 is a circuit diagram showing an example of data to be checked according to an embodiment of the present invention. FIG. 6A is a circuit diagram showing an example for explaining grouping in check target data corresponding to FIG. 3 according to an embodiment of the present invention. FIG. 6B is a circuit diagram showing an example for explaining grouping in the check target data corresponding to FIG. 4 according to an embodiment of the present invention. FIG. 7 is a circuit diagram for explaining an object to be checked in the first example of required specification data according to an embodiment of the present invention. FIG. 8 is a circuit diagram for explaining a target to be checked in the second example of required specification data according to an embodiment of the present invention.

One embodiment of the present invention will be described below with reference to the drawings. Note that in all the drawings of the embodiment below, the same or corresponding parts are given the same reference numerals. Furthermore, the present invention and the present disclosure are not limited to the embodiment described below.

In recent years, there has been a need for circuit check processing for wire harnesses used in vehicles such as automobiles. In the circuit check processing, a system is used that automatically checks whether the manufacturing data of the wire harness product conforms to the required specifications using an information processing device. Here, depending on the specifications of the automobile, there may be tens of thousands of combinations of wire harnesses used in one vehicle, and there is a problem that checking the circuits of all patterns takes an enormous amount of time. Therefore, the inventors have conducted extensive research and have devised a circuit check processing that reduces check omissions by grouping the circuits to be checked, checks all patterns of circuits without narrowing down the number of circuit patterns, and reduces check omissions, and preferably eliminates check omissions. The embodiment described below is based on the above idea.

Figure 1 is a block diagram showing the schematic configuration of a circuit check device 10. As shown in Figure 1, the circuit check device 10 as an information processing device has the configuration of a general computer. Note that a computer capable of communicating with the outside via a network (not shown) may also be used. The circuit check device 10 includes a control unit 11, a memory unit 12, a communication unit 13, and an input/output unit 14.

The circuit check device 10 can check the circuits of a wire harness for an automobile, for example, but it can also check the circuits of a wire harness used for other purposes that are not necessarily limited to automobiles and in which a wire harness can be used. Note that in this specification, the term "wire harness" includes a sub-wire harness (sub-harness).

The control unit 11, which is a processor having hardware, specifically includes processors such as a CPU (Central Processing Unit), a DSP (Digital Signal Processor), and an FPGA (Field-Programmable Gate Array), as well as a main memory unit such as a RAM (Random Access Memory) and a ROM (Read Only Memory).

The storage unit 12 is composed of a storage medium selected from an EPROM (Erasable Programmable ROM), a hard disk drive (HDD), a solid state drive (SSD), and a removable medium. Examples of removable media include a universal serial bus (USB) memory, or a disk recording medium such as a compact disc (CD), a digital versatile disc (DVD), or a Blu-ray (registered trademark) disc (BD). The storage unit 12 can store an operating system (OS), various programs, various tables, various databases, and the like.

The memory unit 12 stores at least one database in which various data are stored in a searchable manner. The memory unit 12 stores a check circuit database 121. The check circuit database 121 can be, for example, a relational database (RDB). In this embodiment, the database (DB) can be constructed by a database management system (DBMS) program executed by a processor that manages the data stored in the memory unit 12.

The check circuit database 121 stores requested specification data (hereinafter, requested specification data 121a), data to be checked (hereinafter, checked data 121b), and conversion data 121c in a manner that allows them to be updated, deleted, and searched. The requested specification data 121a includes information on the specifications of the circuit connections between auxiliary devices mounted on a specified device, and is, for example, specification data that is satisfied by the corresponding vehicle. The checked data 121b is, for example, manufacturing data for a wire harness. The conversion data 121c is data for matching the checked data 121b to the format of the requested specification data 121a.

The check circuit database 121 further stores combination pattern data 121d, W/W connection data 121e, and circuit check result data 121f in a manner that allows updates, deletions, and searches. The combination pattern data 121d is data of a combination table of part numbers of wire harnesses (W/H) for vehicles such as automobiles. The W/W connection data 121e is data of wire-to-wire (WtoW, W/W) connection information. The circuit check result data 121f stores data of the circuit check result obtained by the circuit check process by the circuit check unit 111 of the circuit check device 10 (circuit check result data 121f).

The control unit 11 loads the program stored in the memory unit 12 into the working area of the main memory unit and executes it, and can realize the functions of the circuit check unit 111 and the group setting unit 112 through the execution of the program. Specifically, the control unit 11 can realize the functions of the circuit check unit 111 by loading the circuit check program 122 stored in the memory unit 12 into the working area of the main memory unit and executing it. When a learning model is used as a program in the circuit check unit 111, the learning model uses an input/output data set of predetermined input parameters and output parameters as teacher data. The learning model can be generated by machine learning, such as deep learning using a neural network. The same applies to the group setting unit 112. In this case, the control unit 11 can realize the functions of the circuit check unit 111 and the group setting unit 112 by the learning model.

The communication unit 13 is, for example, a LAN (Local Area Network) interface board or a wireless communication circuit for wireless communication. The LAN interface board or wireless communication circuit can be connected to a network (not shown) such as the Internet, which is a public communication network. The communication unit 13 can be connected to a network and communicate with various external information processing devices. Note that if communication with the outside is not required, a configuration without the communication unit 13 may be adopted.

The input/output unit 14 may be configured, for example, from a touch panel display or a speaker microphone. The input/output unit 14 as an output unit is configured to notify the outside of predetermined information according to the control by the control unit 11. The input/output unit 14 can display characters, figures, etc. on the screen of a display such as a liquid crystal display, an organic EL display, or a plasma display, and output voice from a speaker. The input/output unit 14 includes a printer that outputs predetermined information by printing it on printing paper or the like. The various information stored in the memory unit 12 can be confirmed, for example, on the display of the input/output unit 14 installed in a predetermined office. The input/output unit 14 as an input unit is configured, for example, from a keyboard or a touch panel keyboard incorporated inside the input/output unit 14 that detects touch operations on the display panel, or a voice input device that enables calls with the outside. The circuit check process by the circuit check device 10 can be managed by inputting predetermined information from the input/output unit 14 of the circuit check device 10 and outputting information.

(Circuit check method)
Next, a circuit check method according to an embodiment using the circuit check device 10 configured as above will be described with reference to the drawings. In the circuit check method according to this embodiment, the circuit check device 10 can automatically check. The circuit check method according to this embodiment compares the connection between the start point and the end point of the circuit line included in the required specification data 121a related to the electric wires and connectors connected to the auxiliary devices mounted on a predetermined object, for example, the required specification data 121a created according to each grade of the vehicle and the presence or absence of optional functions, with the connection included in the check target data 121b including the connector information constituting the wire harness (W/H) designed for each divided area and the wiring information constituting the wire harness (W/H) designed for each divided area, and checks the connection of the electric wires included in the check target data 121b. Note that the areas obtained by dividing the space in which the wire harness is to be arranged according to each function are called divided areas. Specifically, for example, in a vehicle, the divided areas in which the wire harness can be arranged, such as the engine room, the interior wall, the instrument panel, and the trunk room, are called divided areas. Moreover, information regarding the electric wire connections between the divided regions is included in wire-to-wire (W/W) connection data 121e.

The circuit check method according to this embodiment is outlined as follows: first, the check target data 121b is converted into the format of the required specification data 121a; second, a circuit group number is assigned to the circuit data in the check target data 121b; and third, for one end and the other end of the circuit in the required specification data 121a, the groups in the check target data 121b are checked, and if they are in the same group, the connection is determined to be correct (OK); if they are in different groups, the connection is determined to be incorrect (NG). The circuit check method according to this embodiment is a so-called circuit group check method. This makes it possible to reduce check omissions while shortening the check time and without narrowing down the number of circuit patterns. The circuit check method according to this embodiment is specifically described below.

Figure 2 is a flow chart for explaining the circuit check method according to this embodiment. Figures 3 and 4 are circuit diagrams showing first and second examples of required specification data 121a according to this embodiment, respectively. Figure 5 is a circuit diagram showing an example of check target data 121b according to this embodiment. Figures 6A and 6B are circuit diagrams showing an example for explaining grouping in check target data 121b according to this embodiment. Figures 7 and 8 are circuit diagrams showing first and second examples of required specification data 121a indicating the target to be checked according to this embodiment, respectively.

2, first, in step ST1, the control unit 11 in the circuit check device 10 reads the circuit check program 122 to cause the circuit check unit 111 and the group setting unit 112 to function. The group setting unit 112 reads the check target data 121b to be checked from the check circuit database 121 in the storage unit 12. On the other hand, the group setting unit 112 reads the conversion data 121c from the check circuit database 121 in the storage unit 12. The group setting unit 112 uses the conversion data 121c to convert the check target data 121b, which is made of manufacturing data, into another format. The manufacturing data is also called design data. Here, in this embodiment, the group setting unit 112 converts the format of the check target data 121b into the format of the required specification data 121a, for example, as shown in FIG. 3 and FIG. 4. It is also possible to convert to another format as necessary, and it is also possible not to convert when the format of the check target data 121b matches or is close to the format of the required specification data 121a. Furthermore, when the check target data 121b is converted by the group setting unit 112, the check target data 121b after the format is converted is generated, for example, as shown in FIG. 5.

Next, the process proceeds to step ST2, where the group setting unit 112 groups the same circuits for each part number in the check target data 121b converted into the format of the required specification data 121a. As shown in the example of FIG. 5, for example, the group setting unit 112 groups the circuits belonging to the main wire harness (main W/H) in the engine room, which is a divided area, into connection groups such as [Connection GR1] and [Connection GR2].

In the example shown in FIG. 5, the group setting unit 112 sets a group including a terminal "K01" as a first terminal at one end of a terminal or connector (hereinafter collectively referred to as terminals) and a terminal "K02" as a second terminal at the other end, and an electric wire connecting the terminal "K01" and the terminal "K02", as a connection group [Connection GR1], etc. Similarly, the group setting unit 112 sets a group including a terminal "K03" at one end as a first terminal, a terminal "K07" at the other end as a second terminal, and a terminal "K08" at the other end as a second terminal, an electric wire connecting the terminal "K03" and the terminal "K07", and an electric wire connecting the terminal "K03" and the terminal "K08", as a connection group [Connection GR2], etc. The group setting unit 112 stores the set connection groups [Connection GR1], [Connection GR2], etc. in the storage unit 12 as check target data 121b.

Similarly, in other divided areas (the instrument panel and floor in the example shown in FIG. 5), the group setting unit 112 sets a group including the terminal "K01" and the terminal "K02" at the other end, and the wire connecting the terminals "K01" and "K02" in the instrument panel W/H as a connection group [Connection GR30], etc. Similarly, in the floor W/H, the group setting unit 112 sets a group including the terminal "#05" at one end, the terminal "K07" at the other end, and the wire connecting the terminals "#05" and "K07" as [Connection GR40], etc. The group setting unit 112 stores the set connection groups [Connection GR30], [Connection GR40], etc. in the memory unit 12 as check target data 121b.

Next, the process proceeds to step ST3, where the group setting unit 112 reads out the combination pattern data 121d and the W/W connection data 121e from the check circuit database 121 in the storage unit 12. The group setting unit 112 comprehensively groups the connection groups by part number for each pattern in the combination table. In other words, the group setting unit 112 combines wire harnesses in the divided areas one by one for each pattern based on the combination table of wire harness part numbers included in the combination pattern data 121d. The group setting unit 112 further groups and sets the connection groups by part number set in step ST2 based on the W/W connection data 121e. The above grouping is performed for all target connection groups.

Specifically, the group setting unit 112 determines the connections between the terminals based on the connection group set in step ST2 and the read W/W connection data 121e. The group setting unit 112 performs comprehensive grouping that groups the multiple connection groups by determining the connections between multiple auxiliaries, in this case between two auxiliaries, based on the combination pattern data 121d.

In the example shown in FIG. 6A, the circuit check unit 111 determines that the connection group [Connection GR1] and the connection group [Connection GR30] are W/W connected based on the W/W connection data 121e. The group setting unit 112 groups the connection groups [Connection GR1] and [Connection GR30] to set the comprehensive connection group [Comprehensive Connection GR1]. This sets the comprehensive connection group [Comprehensive Connection GR1] including the terminal "K01" on one auxiliary side and the terminal "K02" (one of the connectors) on the other auxiliary side. The group setting unit 112 stores the set comprehensive connection group [Comprehensive Connection GR1] and the like as check target data 121b in the storage unit 12. That is, the group setting unit 112 stores information on the comprehensive connection group for each pattern in the combination table in the storage unit 12.

Similarly, in the example shown in FIG. 6B, the circuit check unit 111 determines that the connection group [Connection GR2] and the connection group [Connection GR40] are W/W connected based on the W/W connection data 121e. The group setting unit 112 groups the connection groups [Connection GR2] and [Connection GR40] to set the comprehensive connection group [Comprehensive Connection GR2]. This sets the comprehensive connection group [Comprehensive Connection GR2] including the terminals "K03" and "K08" on one auxiliary side and the terminal "K07" on the other auxiliary side. The group setting unit 112 stores the set comprehensive connection group [Comprehensive Connection GR2] and the like in the memory unit 12 as check target data 121b.

Next, proceeding to step ST4, the circuit check unit 111 searches the check circuit database 121 and reads out the unchecked required specification data 121a, for example, the first example of the required specification data 121a shown in FIG. 3, and the check target data 121b. The circuit check unit 111 selects two ends that are connected to each other and are included in the required specification data 121a. The circuit check unit 111 searches for a comprehensive connection group included in the check target data 121b and checks whether one end (terminal "K01") and the other end (terminal "K02") of the two ends selected in the first example of the circuit included in the required specification data 121a are in the same comprehensive connection group. That is, the circuit check unit 111 determines whether the terminals "K01" and "K02" that are connected to each other and included in the required specification data 121a are included in the same connection group (here, [comprehensive connection GR1]) in the check target data 121b. If the circuit check unit 111 determines that the terminals "K01" and "K02" are included in the same connection group, the comprehensive connection GR1 in the check target data 121b is determined to be a correct connection (OK). On the other hand, if the circuit check unit 111 determines that the terminals "K01" and "K02" are included in different connection groups, the comprehensive connection group [comprehensive connection GR1] in the check target data 121b is determined to be an incorrect connection (NG).

Next, the process proceeds to step ST5, where the circuit check unit 111 stores the information on the terminals to be checked (terminals "K01" and "K02") and the check result (proper connection, incorrect connection) in the memory unit 12 as circuit check result data 121f. Then, the process proceeds to step ST6.

In step ST6, the circuit check unit 111 determines whether or not the check has been completed for all connection patterns to be checked that are included in the required specification data 121a. Here, since the check of the second example of the required specification data 121a shown in FIG. 4 has not been completed, the circuit check unit 111 determines that not all patterns in the required specification data 121a have been checked (step ST6: No), and returns to step ST4.

Returning to step ST4, the circuit check unit 111 searches the check circuit database 121 and reads out the unchecked required specification data 121a, for example the second example of the required specification data 121a shown in FIG. 4, and the data to be checked 121b.

Next, the circuit check unit 111 selects two mutually connected ends included in the read required specification data 121a. Specifically, for example, the circuit check unit 111 selects one end (terminal "K03") and the other end (terminal "K07") of the second example of the circuit included in the required specification data 121a, as shown in FIG. 7. Next, the circuit check unit 111 searches for the inclusive connection group included in the check target data 121b and checks whether the one end (terminal "K03") and the other end (terminal "K07") of the second example of the circuit included in the required specification data 121a are in the same inclusive connection group. That is, the circuit check unit 111 determines whether the mutually connected terminals "K03" and "K07" included in the required specification data 121a are included in the same connection group (here, [inclusive connection GR2]) in the check target data 121b. If the circuit check unit 111 determines that the terminals "K03" and "K07" are included in the same connection group, the inclusive connection group [inclusive connection GR2] in the check target data 121b is determined to have a correct connection (OK). On the other hand, if the circuit check unit 111 determines that the terminals "K03" and "K07" are included in different connection groups, the inclusive connection group [inclusive connection GR2] in the check target data 121b is determined to have an incorrect connection (NG).

Next, the process proceeds to step ST5, where the circuit check unit 111 stores the information on the terminals to be checked (terminals "K03" and "K07") and the check result (proper connection, incorrect connection) in the memory unit 12 as circuit check result data 121f. Then, the process proceeds to step ST6.

Since checking of the pattern shown in FIG. 8, for example, of the second example of the required specification data 121a shown in FIG. 4 has not been completed, in step ST6 the circuit check unit 111 determines that not all patterns in the required specification data 121a have been checked (step ST6: No), and returns to step ST4.

Returning to step ST4, the circuit check unit 111 selects two mutually connected ends that have not yet been selected from among the mutually connected terminals included in the read-out required specification data 121a. Specifically, for example, the circuit check unit 111 selects one end (terminal "K03") and the other end (terminal "K08") of the second example of the circuit included in the required specification data 121a, as shown in FIG. 8. Next, the circuit check unit 111 searches for the inclusive connection group included in the check target data 121b and checks whether the one end (terminal "K03") and the other end (terminal "K08") are in the same inclusive connection group in the check target data 121b. That is, the circuit check unit 111 determines whether the mutually connected terminals "K03" and "K08" included in the required specification data 121a are included in the same connection group (here, [inclusive connection GR2]) in the check target data 121b. If the circuit check unit 111 determines that the terminals "K03" and "K08" are included in the same connection group, the inclusive connection group [inclusive connection GR2] in the check target data 121b is determined to have a correct connection (OK). On the other hand, if the circuit check unit 111 determines that the terminals "K03" and "K08" are included in different connection groups, the inclusive connection group [inclusive connection GR2] in the check target data 121b is determined to have an incorrect connection (NG). Note that in an inclusive connection group that includes multiple circuit patterns, if even one is determined to have an incorrect connection, it is determined to have an incorrect connection, and otherwise it is determined to have a correct connection.

Next, the process proceeds to step ST5, where the circuit check unit 111 stores the information on the terminals to be checked (terminals "K03" and "K08") and the check result (proper connection, incorrect connection) in the memory unit 12 as circuit check result data 121f. Then, the process proceeds to step ST6.

Since the check has been completed for all patterns in the required specification data 121a shown in Figures 3 and 4, in step ST6 the circuit check unit 111 determines that all patterns in the required specification data 121a have been checked (step ST6: Yes). Note that in cases where the circuit check method is not performed on all circuit patterns included in the required specification data 121a but is performed only on some patterns, the determination in step ST6 is made based on whether or not all patterns to be checked have been checked. This completes the circuit check process according to one embodiment.

The conventional technology described in Patent Documents 1 and 2 is a system that automatically checks whether manufacturing data for automotive wire harness products conforms to the circuit configuration required specifications by having a computer read the data. In the conventional technology, the data read by the circuit check device is the required specification data (wiring information for each auxiliary device), which is the specification data that the corresponding vehicle satisfies, and the check target data (connector and wiring information for each part), which is the manufacturing data for the wire harness. Furthermore, in the conventional technology, the following three steps are performed as a circuit check method.

In other words, in the first step, one end of the circuit in the required specification data is identified from the circuit in the data to be checked. In the second step, it is checked whether the other end of the circuit identified in the first step matches. In the third step, if there is a mismatch in the second step, a search is made for further connections, such as a joint box (JB), joint connector (JC), or wire-to-wire (W/W), and the check in the second step is repeated. If a matching circuit is finally found after the second and third steps, it is judged as good (OK), and if a matching circuit is not found, it is judged as bad (NG).

In the prior art, there are cases where there are a plurality of candidates for wire harnesses that can be routed in each divided area of a vehicle as combination patterns to be checked. Specifically, when the vehicle space is divided into, for example, three divided areas, if there are two candidates in each divided area, there are (2 ³ =) eight combination patterns. In this case, the number of patterns that need to be checked is eight, but as the number of divided areas and candidates increases, the number of combination patterns increases exponentially, and depending on the vehicle, there may be tens of thousands of combination patterns of wire harnesses.

Therefore, in the above-mentioned conventional technology, the check time is shortened by selecting from all patterns using a specified narrowing-down method from the combination pattern data of the part number of the wire harness of the corresponding vehicle, and then narrowing down the patterns to be checked. However, in the conventional technology, the history of circuits that have been checked once is not kept, so the same circuit appears multiple times as a check target, and as a result, the check takes a long time.

In contrast, according to the embodiment of the present invention described above, by grouping the circuit connection patterns, the data of the grouped circuits is stored and checked, reducing the need to search for the circuits one by one. Also, since it is sufficient to check the circuits that only require termination once for one circuit, it is possible to check only once. Note that, since the connections between the divided areas have been confirmed at the grouping stage, there is no need to check them again. Therefore, since it does not take a long time to check each circuit in the required specification data, even if all the patterns of the combination of the circuits of the wire harness included in the check target data are checked, it does not take a long time to check the circuits, and it is possible to reduce and preferably eliminate missed checks.

(Recording medium)
In one embodiment of the present disclosure, a program capable of executing the processing method by the circuit check device 10 can be recorded on a recording medium readable by a computer or other machine or device (hereinafter referred to as a computer, etc.). By having a computer, etc. read and execute the program from the recording medium, the computer, etc. functions as a control unit of the circuit check device 10. Here, a recording medium readable by a computer, etc. refers to a non-transient recording medium that accumulates information such as data and programs by electrical, magnetic, optical, mechanical, or chemical action and can be read from a computer, etc. Among such recording media, those that can be removed from a computer, etc. include, for example, flexible disks, magneto-optical disks, CD-ROMs, CD-R/Ws, DVDs (Digital Versatile Disks), BDs, DATs, magnetic tapes, and memory cards such as flash memories. In addition, recording media fixed to a computer, etc. include hard disks, ROMs, etc. Furthermore, SSDs can be used as recording media that can be removed from a computer, etc., and as recording media fixed to a computer, etc.

Other Embodiments
Furthermore, in the circuit check device 10 according to an embodiment, the term "unit" can be read as a "circuit" etc. For example, the term "communication unit" can be read as a communication circuit.

In addition, the program executed by the circuit check device 10 according to one embodiment may be configured to be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network.

Note that in the explanation of the flowcharts in this specification, the order of processing between steps is clearly indicated using expressions such as "first," "then," and "continue." However, the order of processing required to implement this embodiment is not uniquely determined by these expressions. In other words, the order of processing in the flowcharts described in this specification can be changed as long as there are no contradictions.

In addition, instead of a system with one server, edge computing technology can be applied, in which terminals capable of executing some of the server's processes are distributed in locations physically close to the information processing device, enabling efficient communication of large amounts of data while shortening the calculation processing time.

Although one embodiment of the present invention has been specifically described above, the present invention is not limited to the above embodiment, and various modifications based on the technical concept of the present invention are possible. The present invention also includes a configuration in which the above-mentioned components are appropriately combined. Further effects and modifications can be easily derived by those skilled in the art. The broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Therefore, various modifications are possible without departing from the spirit or scope of the general inventive concept defined by the appended claims and their equivalents. For example, the numerical values and types of information given in the above embodiment are merely examples, and different numerical values and types of information may be used as necessary, and the present invention is not limited by the description and drawings that form part of the disclosure of the present invention according to the above embodiment.

In the embodiment described above, all patterns in the circuit are checked, but it is also possible not to check all patterns as necessary. In other words, only some of the circuits may be checked, or the system may check only the circuits that have undergone design changes. In this case, other circuits that have not undergone design changes are checked, so it is possible to further reduce the check time without reducing the accuracy of the check.

REFERENCE SIGNS LIST 10: CIRCUIT CHECK DEVICE 11: CONTROL UNIT 12: MEMORY UNIT 13: COMMUNICATION UNIT 14: I/O UNIT 111: CIRCUIT CHECK UNIT 112: GROUP SETTING UNIT 121: CHECK CIRCUIT DATABASE 121a: REQUIREMENT SPECIFICATION DATA 121b: CHECK SUBJECT DATA 121c: CONVERSION DATA 121d: COMBINATION PATTERN DATA 121e: W/W CONNECTION DATA 121e: CONNECTION DATA 121f: CIRCUIT CHECK RESULT DATA 122: CIRCUIT CHECK PROGRAM

Claims (6)

A circuit check device including a control unit that judges whether manufacturing data designed for a connection of a wire harness is correct based on specification data including information regarding a specification of a connection between auxiliary devices mounted on a predetermined device,
The control unit is
setting connections between the plurality of terminals connected to each other and included in the manufacturing data as connection groups, and storing the groups in a storage unit;
Extracting a first terminal and a second terminal of two ends connected to each other included in the specification data;
determining whether a connection group in the manufacturing data is correct or incorrect based on whether the first terminal and the second terminal are included in the same connection group stored in the memory unit. The control unit is
A space in which the wire harness is disposed in the predetermined device is divided into a plurality of divided areas,
setting the connection group for each of the divided regions;
setting an inclusive connection group that includes the connection groups set for each of the divided areas based on information regarding the connections of the electric wires between the divided areas, and storing the inclusive connection group in the storage unit;
2. The circuit check device according to claim 1, further comprising: determining whether the inclusive connection group in the manufacturing data is correct or incorrect based on whether the first terminal and the second terminal are included in the same inclusive connection group stored in the memory unit. The control unit is
3. The circuit check device according to claim 1, wherein a format of the manufacturing data is converted into a format of the specification data by using predetermined conversion data. 4. The circuit check device according to claim 1, wherein the predetermined device is a vehicle. A circuit check method executed by a control unit to determine whether manufacturing data designed for a connection of a wire harness is correct based on specification data including information regarding a specification of a connection between auxiliary devices mounted on a predetermined device, comprising:
setting connections between the plurality of terminals connected to each other and included in the manufacturing data as connection groups, and storing the groups in a storage unit;
Extracting a first terminal and a second terminal of two ends connected to each other included in the specification data;
determining whether a connection group in the manufacturing data is correct or incorrect based on whether the first terminal and the second terminal are included in the same connection group stored in the memory unit. a control unit that judges whether manufacturing data designed for connection of a wire harness is correct based on specification data including information regarding specifications of connection of a circuit between auxiliary devices mounted on a predetermined device;
setting connections between the plurality of terminals connected to each other and included in the manufacturing data as connection groups, and storing the groups in a storage unit;
Extracting a first terminal and a second terminal of two ends connected to each other included in the specification data;
a circuit check program that executes a circuit check program that executes a process of determining whether a connection group in the manufacturing data is correct or incorrect depending on whether the first terminal and the second terminal are included in the same connection group stored in the storage unit.

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