Maintenance work support system

Abstract

To provide a maintenance work support system capable of improving the accuracy of maintenance work.SOLUTION: A maintenance work support system 1 comprises a terminal apparatus 2 for a worker who performs vehicle maintenance work, and a server apparatus 3 that is communicably connected to the terminal apparatus 2 and supports the maintenance work. The server apparatus 3 stores in advance a repair report that describes work details for each step of the maintenance work. The server apparatus 3, in response to a request from the terminal apparatus 2, transmits repair report work information indicating the work details in each step of the maintenance work described in the repair report to the terminal apparatus 2, determines the difference between the work details indicated by the repair report work information and implementation details in each step of the maintenance work performed by the worker according to the repair report work information, identifies steps in which the number of occurrences of the difference in each step exceeds a threshold as a step requiring improvement to register it in a maintenance record database 41.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a maintenance work support system. [Background technology]

[0002] BACKGROUND ART Systems for supporting maintenance work such as inspection, repair, or part replacement of vehicles such as automobiles are known (for example, Patent Document 1).

[0003] Patent document 1 discloses a vehicle maintenance system that is characterized by comprising a first storage means that stores vehicle inspection items, a display means that displays the inspection items by referring to the first storage means, an input means that inputs inspection results for the vehicle to be inspected, a second storage means that stores the inspection results input by the input means, and an output means that outputs the inspection results by referring to the second storage means. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-127877 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the system disclosed in Patent Document 1 supports the smooth progress of maintenance work by obtaining the user's consent in order to prevent problems with the user regarding the maintenance content. Therefore, the system disclosed in Patent Document 1 does not guarantee that the maintenance work has been performed with sufficient work accuracy if the user does not have specialized knowledge of the maintenance work. Therefore, the system disclosed in Patent Document 1 has room for improvement in terms of improving the work accuracy of the maintenance work.

[0006] The present invention has been made in view of the above, and has an object to provide a maintenance work support system that can improve the work accuracy of maintenance work. [Means for solving the problem]

[0007] In order to solve the above problem, the maintenance work support system of the present invention is a maintenance work support system comprising a terminal device of a worker who performs vehicle maintenance work, and a server device that is communicatively connected to the terminal device and supports the maintenance work, wherein the server device pre-stores a repair manual that describes the work content for each process of the maintenance work, and in response to a request from the terminal device, the server device transmits repair manual work information that indicates the work content for each process of the maintenance work described in the repair manual to the terminal device, determines the difference between the work content indicated by the repair manual work information and the implementation content for each process of the maintenance work performed by the worker in accordance with the repair manual work information, and identifies processes in each process where the number of times the difference occurs exceeds a threshold as processes requiring improvement, and registers the process in a database.

[0008] With this configuration, the maintenance work assistance system of the present invention can provide feedback to the worker regarding the process requiring improvement, identifying it as a process in which the worker should improve the work content. Alternatively, if a large number of workers frequently make the same mistake, the maintenance work assistance system can provide feedback to the repair manual regarding the process requiring improvement as a process in which the work content described in the repair manual should be improved. Thus, the maintenance work assistance system can improve the accuracy of maintenance work.

[0009] In a more preferred embodiment, the server device transmits information about the process requiring improvement to the terminal device, and the terminal device displays the information about the process requiring improvement.

[0010] This allows the maintenance work assistance system to provide feedback to the worker on information regarding processes requiring improvement. Therefore, the maintenance work assistance system can alert the worker to avoid making the same mistake again in the future. This allows the maintenance work assistance system to reliably improve the accuracy of maintenance work.

[0011] In a more preferred embodiment, the server device updates the repair manual based on the information regarding the process requiring improvement.

[0012] This allows the maintenance work assistance system to feed back information about the process requiring improvement to the repair manual. Therefore, the maintenance work assistance system can alert other workers who will be performing the process requiring improvement from the next time onward, or improve the repair manual itself to make it more realistic. Therefore, the maintenance work assistance system can further improve the accuracy of maintenance work.

[0013] In a further preferred embodiment, the server device registers the implementation details in the database by linking them to worker information including attribute information of the worker, analyzes the occurrence tendency of the improvement-requiring processes according to the attribute information based on the attribute information and information regarding the improvement-requiring processes, and updates the repair manual based on the occurrence tendency.

[0014] With this configuration, if workers with the same attributes tend to make the same mistakes, the maintenance work assistance system can provide dedicated repair manuals suited to each worker with the same attributes, thereby further improving the accuracy of maintenance work. [Effects of the Invention]

[0015] According to the present invention, it is possible to provide a maintenance work support system that can improve the work accuracy of maintenance work. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a diagram showing the configuration of a maintenance work support system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a sequence diagram showing an example of the operation of the maintenance work support system. [Figure 3] FIG. 3 is a sequence diagram showing an example of the operation of the maintenance work support system performed subsequent to FIG. 2. [Figure 4]FIG. 4 is a sequence diagram showing an example of the operation of the maintenance work support system performed subsequent to FIG. 3. [Figure 5] FIG. 4 is a sequence diagram showing another example of the operation of the maintenance work support system 1. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Components with the same reference numerals in each embodiment have the same functions in each embodiment unless otherwise specified, and description thereof will be omitted.

[0018] The configuration of the maintenance work support system 1 will be described with reference to Fig. 1. Fig. 1 is a diagram showing the configuration of the maintenance work support system 1 of this embodiment.

[0019] The maintenance work support system 1 is a system that supports maintenance work such as inspection, repair, or part replacement of vehicles such as automobiles. The maintenance work support system 1 includes a terminal device 2 of a worker who performs vehicle maintenance work, and a server device 3 that is communicably connected to the terminal device 2 and supports the maintenance work.

[0020] The terminal device 2 may be configured as a mobile terminal such as a smartphone, a tablet PC, etc. The terminal device 2 requests assistance with maintenance work from the server device 3 in response to an operation by a worker such as an automobile mechanic, and displays a response from the server device 3 to the request.

[0021] The server device 3 is connected to the terminal device 2 via a wireless or wired computer network N. The server device 3 shown in Fig. 1 is composed of a maintenance record management server 4, a parts inventory management server 5, and a repair manual management server 6. The maintenance record management server 4, the parts inventory management server 5, and the repair manual management server 6 are capable of communicating with each other.

[0022] The maintenance record management server 4 and the parts inventory management server 5 may be, for example, servers managed by a vehicle dealership (dealer) that has a vehicle maintenance facility. The repair manual management server 6 may be, for example, a server managed by a vehicle manufacturer or a repair manual provider. However, the hardware configuration of the server device 3 and the management entities of the maintenance record management server 4, the parts inventory management server 5, and the repair manual management server 6 are not particularly limited. For example, the server device 3 may be a server in which the repair manual management server 6, the maintenance record management server 4, and the parts inventory management server 5 are integrated into a single server.

[0023] The maintenance record management server 4 receives the information on the repair manual sent from the repair manual management server 6. The repair manual describes the work content for each maintenance process in the order in which the work should be performed. The repair manual is also called a maintenance procedure or a maintenance manual.

[0024] For example, if the maintenance work involves replacing a target part, the repair manual will describe the parts that must be removed before accessing the target part and the removal process for those parts, as well as the removal process for the target part. Furthermore, the repair manual will describe the parts that must be replaced along with the target part (including non-reusable parts such as oil seals) and the removal process for those parts. Similarly, the repair manual will describe the parts that must be installed before installing the target part and the installation process for those parts, as well as the installation process for the target part. Furthermore, the repair manual will describe the locations of connecting members (claws, connectors, bolts, etc.) between each part, the removal and installation processes, the removal and installation directions, the tools required for each process and how to use them, and various precautions. Furthermore, the repair manual will describe the appropriate values ​​for work control parameters, such as the tightening torque of a torque wrench. These appropriate values ​​are preset to ensure that the work is performed appropriately in each process. Furthermore, the repair manual will describe how to dispose of the target part and the parts that need to be replaced.

[0025] The maintenance record management server 4 registers the details of the maintenance work performed by the worker in each process and the actual work time as a maintenance record in the maintenance record database 41 of the maintenance record management server 4. At this time, the maintenance record management server 4 registers the maintenance record by linking it to worker information including a worker number that identifies the worker and the worker's attribute information.

[0026] The maintenance record management server 4 determines the difference between the work content for each process described in the repair manual and the maintenance work content performed by the worker in each process. Specifically, the maintenance record management server 4 determines the difference between the work content for each process performed by the worker in accordance with the repair manual work information and the work content for each process described in the repair manual indicated by the repair manual information. The repair manual work information is information indicating the work content for each process described in the repair manual. The repair manual work information may be transmitted from the repair manual management server 6 to the terminal device 2 for each process. The worker can perform the maintenance work in accordance with the repair manual work information displayed on the terminal device 2.

[0027] The maintenance record management server 4 can acquire the details of the maintenance work performed by the worker by having the terminal device 2 send the details to the maintenance record management server 4 in response to input operations by the worker, etc. Alternatively, the maintenance record management server 4 can acquire the details of the maintenance work performed by the worker by sending work management values ​​detected by the tools used to the maintenance record management server 4. Alternatively, the maintenance record management server 4 can acquire the details of the maintenance work performed by the worker by sending to the maintenance record management server 4 images captured by a camera installed in advance at the work site or a camera provided on the terminal device 2.

[0028] The difference between the work content in each process indicated by the repair manual work information and the work content in each process performed by the worker according to the repair manual information indicates a discrepancy between the appropriate work content in each process and the work content performed by the worker in each process. Specific examples of the difference include the difference between the actual measured value of the work control value and the appropriate value, parts incorrectly allocated by the worker, tools incorrectly prepared by the worker, or the incorrect work sequence.

[0029] The parts inventory management server 5 manages the inventory of various vehicle parts. For example, the parts inventory management server 5 is notified by the maintenance record management server 4 that a part to be handed over to a worker will be shipped out. Based on the notification, the parts inventory management server 5 registers the fact that the part has been shipped out in the parts inventory database possessed by the parts inventory management server 5. Furthermore, when the number of parts in stock falls below a predetermined optimum number, the parts inventory management server 5 arranges for the shortage of parts to be ordered.

[0030] The repair manual management server 6 stores in advance repair manuals that describe the work content for each process of maintenance work. In response to a request from the terminal device 2, the repair manual management server 6 transmits repair manual work information that indicates the work content for each process described in the repair manual to the terminal device 2. This allows the maintenance work support system 1 to notify the worker of the work content described in the repair manual for each process.

[0031] The repair manual management server 6 tally up the number of times that differences occur between the work content for each process indicated in the repair manual work information and the maintenance work content for each process performed by the worker according to the repair manual information. The repair manual management server 6 identifies a process for which the number of times that the difference occurs exceeds a threshold as a process requiring improvement. Instead of the number of times that the difference occurs for each process, the repair manual management server 6 may identify a process requiring improvement using the frequency of occurrence of the difference calculated from the tally of the number of times that the difference occurs for each process over a predetermined period.

[0032] The process requiring improvement indicates a process in which the worker should improve the work content. Furthermore, if many workers frequently make the same mistake, the process requiring improvement indicates a process in which the work content described in the repair manual should be improved. The threshold value to be compared with the number of occurrences of the difference is set in advance depending on the work content in each process and the proficiency level of the worker. Multiple threshold values ​​may be set for each process. For example, the threshold values ​​may include a first threshold value for distinguishing whether or not a process requires improvement, and a second threshold value for distinguishing between a process requiring improvement in which a certain worker should improve the work content and a process requiring improvement in which the work content described in the repair manual should be improved. The second threshold value may be greater than the first threshold value.

[0033] The repair manual management server 6 transmits information about the identified process requiring improvement to the maintenance record management server 4. The maintenance record management server 4 registers the information about the process requiring improvement as a maintenance record in the maintenance record database 41. The repair manual management server 6 transmits the information about the identified process requiring improvement to the terminal device 2. The terminal device 2 displays the information about the process requiring improvement and notifies the worker. The information about the process requiring improvement includes the specific content of the difference in the process requiring improvement, the number of times the difference occurs in the process requiring improvement, and the actual work time in the process requiring improvement. This allows the maintenance work support system 1 to provide feedback about the process requiring improvement to the worker. Therefore, the maintenance work support system 1 can alert the worker not to repeat the same mistake next time onwards. Therefore, the maintenance work support system 1 can improve the accuracy of maintenance work.

[0034] The repair manual management server 6 updates the repair manual based on information about the identified process requiring improvement. For example, the repair manual management server 6 can update the repair manual by adding information about the identified process requiring improvement to the relevant section of the repair manual. This allows the maintenance work support system 1 to feed back information about the process requiring improvement to the repair manual. Therefore, the maintenance work support system 1 can alert other workers who will be performing the process requiring improvement next time onwards. Therefore, the maintenance work support system 1 can improve the accuracy of maintenance work.

[0035] Furthermore, for example, if the number of occurrences of the above-mentioned discrepancies exceeds a second threshold, the repair manual management server 6 determines that the work content described in the repair manual itself is not realistic. The repair manual management server 6 can then update the repair manual by issuing an alert informing the administrator that the work content described in the repair manual should be improved, or by receiving a new repair manual from another server that describes the improved work content. This allows the maintenance work assistance system 1 to provide feedback on information regarding processes requiring improvement to the repair manual, thereby improving the repair manual itself to be more realistic. Therefore, the maintenance work assistance system 1 can improve the accuracy of maintenance work.

[0036] The operation of the maintenance work support system 1 will be described with reference to Fig. 2 to Fig. 4. Fig. 2 is a sequence diagram showing an example of the operation of the maintenance work support system 1. Fig. 3 is a sequence diagram showing an example of the operation of the maintenance work support system 1 performed subsequent to Fig. 2. Fig. 4 is a sequence diagram showing an example of the operation of the maintenance work support system 1 performed subsequent to Fig. 3.

[0037] 2 to 4, the replacement of a target part will be described as an example of maintenance work. The maintenance work support system 1 performs operations related to the preparation stage of the maintenance work shown in steps S1 to S15, operations related to the implementation stage of the maintenance work shown in steps S16 to S36, and operations related to the repair manual update stage after the maintenance work is completed shown in steps S37 to S42.

[0038] When starting maintenance work, the worker prepares in advance a part to replace the target part. Then, the worker inputs vehicle information such as a chassis number that identifies the vehicle, a part number that identifies the target part of the maintenance work, and a worker number that identifies the worker into the terminal device 2. The terminal device 2 transmits the input chassis number, part number, and worker number to the repair book management server 6 (step S1).

[0039] The repair manual management server 6 searches for a repair manual based on the received chassis number and part number, and sends the searched repair manual to the maintenance record management server 4 (step S2). The searched repair manual contains repair manual work information that indicates the work content for each stage of the maintenance work for the target part. The maintenance record management server 4 stores the received repair manual and begins registering the maintenance record in the maintenance record database 41 (step S3).

[0040] The repair manual management server 6 determines whether there are any parts (hereinafter also referred to as "additional parts") other than the target parts that should be allocated for this maintenance work (step S4). Additional parts are, for example, parts that should be replaced together with the target parts. If there are additional parts (step S4: Yes), the repair manual management server 6 transmits repair manual work information indicating the work content of the process for allocating the additional parts to the terminal device 2 (step S5). If there are no additional parts (step S4: No), the repair manual management server 6 proceeds to step S16 without transmitting the repair manual work information.

[0041] The terminal device 2 displays the received repair manual work information (step S6). The worker allocates the additional parts in accordance with the repair manual work information displayed on the terminal device 2. The terminal device 2 transmits the implementation details of the process of allocating the additional parts to the maintenance record management server 4 in accordance with input operations by the worker, etc. (step S7). The maintenance record management server 4 registers the implementation details of the process of allocating the additional parts in the maintenance record database 41.

[0042] The maintenance record management server 4 determines whether the allocated additional part is appropriate based on the repair manual work information described in the repair manual (step S8). If the allocated additional part is not appropriate (step S8: No), the maintenance record management server 4 sends an alert to the terminal device 2 indicating that the allocated additional part is not appropriate (step S9). The terminal device 2 displays the received alert (step S10) and notifies the worker to allocate an appropriate additional part. If the allocated additional part is appropriate (step S8: Yes), the maintenance record management server 4 sends a notification to the parts inventory management server 5 indicating that the allocated additional part has been shipped. The parts inventory management server 5 ships the allocated additional part (step S11). The worker receives the additional part. The terminal device 2 sends a notification to the maintenance record management server 4 indicating that the allocated additional part has been received in response to an input operation by the worker, etc. (step S12). The maintenance record management server 4 registers in the maintenance record database 41 that the preparation of the parts has been completed (step S13). After the allocated additional parts are shipped, the parts inventory management server 5 determines whether the parts inventory is appropriate (step S14), and if not appropriate, arranges for the ordering of the missing parts (step S15).

[0043] Next, the repair manual management server 6 determines whether the tool to be used is a guaranteed tool (step S16). A guaranteed tool is a tool that requires a guarantee that the work has been performed properly, such as a torque wrench that requires an assembly guarantee. A guaranteed tool has a wireless communication function that transmits the actual measured value of the work management value to the maintenance record management server 4, which is the pairing partner. If there is no guaranteed tool (step S16: No), the repair manual management server 6 proceeds to step S19 without transmitting a pairing instruction indicating an instruction to prepare for pairing the guaranteed tool. If there is a guaranteed tool (step S16: Yes), the repair manual management server 6 transmits the pairing instruction to the maintenance record management server 4 (step S17). The maintenance record management server 4 prepares for pairing the guaranteed tool (step S18). Next, the repair manual management server 6 transmits repair manual work information indicating the work content of the process of preparing the tools to be used, repair manual work information indicating the work content of the process of removing the target part, and repair manual work information indicating the work content of the process of installing the replacement part to the terminal device 2 (step S19).

[0044] The terminal device 2 displays the received repair manual work information (step S20). The worker prepares the tool to be used according to the repair manual work information displayed on the terminal device 2. If the tool to be used is a guaranteed tool, the worker pairs it with the guaranteed tool. The terminal device 2 transmits the implementation details of the tool preparation process to the maintenance record management server 4 according to input operations by the worker, etc. (step S21). The maintenance record management server 4 registers the implementation details of the tool preparation process in the maintenance record database 41.

[0045] The maintenance record management server 4 determines whether the prepared tools are appropriate and whether the pairing has been performed appropriately, based on the repair manual work information described in the repair manual (step S22). If the prepared tools or pairing are inappropriate (step S22: No), the maintenance record management server 4 sends an alert to the terminal device 2 indicating that the prepared tools or pairing are inappropriate (step S23). The terminal device 2 displays the received alert (step S24) and notifies the worker to prepare appropriate tools and perform appropriate pairing. If the prepared tools and pairing are appropriate (step S22: Yes), the maintenance record management server 4 registers in the maintenance record database 41 that the tool preparation has been completed (step S25). Then, the maintenance record management server 4 sends a work execution instruction to the terminal device 2 instructing the worker to perform the process of removing the target part and the process of installing a replacement part (step S26).

[0046] The terminal device 2 displays the repair document work information according to the received work execution instructions. The worker removes the target part and installs a replacement part according to the repair document work information displayed on the terminal device 2. The terminal device 2 transmits the implementation details of the process of removing the target part and the process of installing the replacement part to the maintenance record management server 4 in accordance with the worker's input operation, etc. (Step S27). In particular, for the process of installing a replacement part using a guaranteed tool, the terminal device 2 transmits the actual measured value of the work management value to the maintenance record management server 4 as the implementation details. In this embodiment, the actual measured value for the process using a guaranteed tool is transmitted from the guaranteed tool to the maintenance record management server 4 without going through the terminal device 2, but it may also be transmitted to the maintenance record management server 4 via the terminal device 2.

[0047] The maintenance record management server 4 determines whether the process of removing the target part and the process of installing the replacement part are appropriate based on the repair manual work information described in the repair manual. In particular, the maintenance record management server 4 determines whether the actual measurement values ​​in the process using the guaranteed tool are appropriate (step S28). If the actual measurement values ​​are not appropriate (step S28: No), the maintenance record management server 4 sends an alert indicating that the actual measurement values ​​are not appropriate to the terminal device 2 (step S29). The terminal device 2 displays the received alert (step S30) and notifies the worker to correct the actual measurement values. If the actual measurement values ​​are appropriate (step S28: Yes), the maintenance record management server 4 registers in the maintenance record database 41 that the part replacement has been completed (step S31).

[0048] The maintenance record management server 4 determines whether all the processes described in the repair manual have been properly performed based on the information registered in the maintenance record database 41 and the repair manual work information for all the processes described in the repair manual (step S32). "All the processes have been properly performed" means that there are no processes that have been performed improperly and no processes that have not been performed.

[0049] If all processes have not been properly performed (step S32: No), the maintenance record management server 4 sends an alert to the terminal device 2 indicating that all processes have not been properly performed (step S33). The terminal device 2 displays the received alert (step S34) and notifies the worker to properly perform all processes. Then, the terminal device 2 or the maintenance record management server 4 sends a notification indicating the process that was improperly performed or the process that has not been performed to the repair manual management server 6. Based on these notifications, the repair manual management server 6 determines the next process to be performed and determines whether the tool to be used in the determined process is a guaranteed tool (step S16). The operation of the maintenance work support system 1 performed after step S16 is the same as the operation already described above.

[0050] If all processes have been carried out properly (step S32: Yes), the maintenance record management server 4 registers the actual work time required for this maintenance work in the maintenance record database 41 (step S35). The maintenance record management server 4 determines that this maintenance work has been completed and ends the registration of the maintenance record in the maintenance record database 41 (step S36). The maintenance record management server 4 then sends a notification to the repair manual management server 6 indicating that this maintenance work has been completed.

[0051] The repair manual management server 6 tally up the number of times an alert has occurred and the actual work time (step S37). That is, the repair manual management server 6 tally up the number of times a difference has occurred between the work content in each process indicated by the repair manual work information and the maintenance work content in each process performed by the worker according to the repair manual information. Then, the repair manual management server 6 identifies a process where the number of times an alert has occurred exceeds a threshold, i.e., a process where the number of times the difference has occurred exceeds a threshold, as a process requiring improvement (step S38). The repair manual management server 6 transmits information about the identified process requiring improvement to the maintenance record management server 4 and the terminal device 2 (step S39). The maintenance record management server 4 registers information about the process requiring improvement in the maintenance record database 41 (step S40). The terminal device 2 displays information about the process requiring improvement and notifies the worker (step S41). Then, the repair manual management server 6 updates the repair manual based on the information about the identified process requiring improvement (step S42).

[0052] As described above, the maintenance work support system 1 includes a terminal device 2 for a worker performing vehicle maintenance work, and a server device 3 that is communicatively connected to the terminal device 2 and supports the maintenance work. A repair manual management server 6 of the server device 3 pre-stores a repair manual that describes the work content for each maintenance work process. In response to a request from the terminal device 2, the repair manual management server 6 of the server device 3 transmits repair manual work information indicating the work content for each maintenance work process described in the repair manual to the terminal device 2. The maintenance record management server 4 of the server device 3 determines differences between the work content indicated by the repair manual work information and the implementation content for each maintenance work process performed by the worker in accordance with the repair manual work information. The repair manual management server 6 of the server device 3 identifies processes for which the number of occurrences of the difference exceeds a threshold as processes requiring improvement, and registers the identified processes in the maintenance record database 41.

[0053] As a result, the maintenance work support system 1 can provide feedback to the worker regarding the process requiring improvement as a process in which the worker should improve the work content. Alternatively, in cases where a large number of workers frequently make the same mistake, the maintenance work support system 1 can provide feedback to the repair manual regarding the process requiring improvement as a process in which the work content described in the repair manual should be improved. Thus, the maintenance work support system 1 can improve the accuracy of maintenance work.

[0054] 5 is a sequence diagram showing another example of the operation of the maintenance work assistance system 1. The maintenance work assistance system 1 can perform the operation shown in FIG. 5 after the operation shown in FIG.

[0055] The repair manual management server 6 analyzes the occurrence tendency of the process requiring improvement according to the worker's attribute information based on the information about the identified process requiring improvement and the worker's attribute information, and can update the repair manual based on the occurrence tendency. The worker's attribute information may be, for example, the worker's age, gender, nationality, dominant hand, career history, years of employment, or level of proficiency. In particular, since the way maintenance work is performed may differ depending on the dealership, the attribute information may be information about the dealership where the worker previously worked, or, if the current dealership was established by merging multiple dealerships, information about the dealership before the merger.

[0056] Specifically, the repair manual management server 6 focuses on one or more pieces of attribute information and sends a transmission instruction to the maintenance record management server 4 to transmit information about the improvement-requiring processes registered as maintenance records of the workers belonging to the focused attribute information (step S51). Based on the transmission instruction, the maintenance record management server 4 transmits information about the improvement-requiring processes related to the focused attribute information to the repair manual management server 6 (step S52). The repair manual management server 6 receives information about the improvement-requiring processes related to the focused attribute information (step S53). The repair manual management server 6 analyzes the occurrence tendency of the improvement-requiring processes according to the focused attribute information from the received information about the improvement-requiring processes (step S54). The repair manual management server 6 then updates the repair manual based on the analyzed occurrence tendency (step S55). For example, the repair manual management server 6 stores repair manuals that separately describe repair manual work information for less skilled workers and repair manual work information for more skilled workers. The occurrence tendency of improvement-requiring processes for less skilled workers may differ from the occurrence tendency of improvement-requiring processes for more skilled workers. In this case, the repair manual management server 6 updates the repair manual so that the repair manual describes the work content after improvement in accordance with each occurrence tendency.

[0057] The worker attribute information is included in the worker information as described above, and is registered in advance in the worker database 7 that manages the worker information. The worker database 7 may be part of the repair manual management server 6, or may be independent of the repair manual management server 6 and communicably connected to the repair manual management server 6. The worker database 7 may be communicably connected to the repair manual management server 6 via the computer network N.

[0058] In this way, the repair manual management server 6 can update repair manuals based on the tendency for processes requiring improvement to occur according to the worker's attribute information. This allows the maintenance work assistance system 1 to provide dedicated repair manuals tailored to each worker with the same attributes when workers with the same attributes tend to make the same mistakes. Therefore, the maintenance work assistance system 1 can further improve the accuracy of maintenance work.

[0059] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments and various modifications can be made without departing from the spirit of the present invention as defined in the claims. In the present invention, the configuration of one embodiment can be added to the configuration of another embodiment, the configuration of one embodiment can be replaced with the configuration of another embodiment, or part of the configuration of one embodiment can be deleted. [Explanation of symbols]

[0060] 1...Maintenance work support system, 2...Terminal device, 3...Server device, 4...Maintenance record management server, 41...Maintenance record database (database), 5...Parts inventory management server, 6...Repair document management server, 7...Worker database

Claims

[Claim 1] A maintenance work support system including a terminal device of a worker performing vehicle maintenance work, and a server device communicably connected to the terminal device and supporting the maintenance work, The server device stores in advance a repair manual that describes the details of each maintenance process, The server device In response to a request from the terminal device, repair manual work information indicating the work content in each step of the maintenance work described in the repair manual is transmitted to the terminal device; Acquires the implementation details of each step of the maintenance work performed by the worker in accordance with the repair manual work information transmitted from the terminal device; Determine a difference between the work content indicated by the repair manual work information and the work content performed by the worker; a process in which the number of occurrences of the difference in each process exceeds a first threshold value and is equal to or less than a second threshold value is identified as a process requiring improvement, indicating a process in which the worker should improve the implementation content, and the process is registered in a database, and information regarding the process requiring improvement is transmitted to the terminal device to notify the worker; A process in which the number of occurrences of the difference in each process exceeds the second threshold is identified as a process requiring improvement indicating a process in which the work content described in the repair manual should be improved, and the repair manual is updated so that the work content after improvement in the process requiring improvement is described in the repair manual. A maintenance work support system characterized by:

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