Inspection workflow management system

Abstract

To provide an inspection flow management system that shortens the time required to identify the cause of a malfunction in the maintenance and inspection of a work machine, and enables maintenance and inspection to be performed quickly and reliably.SOLUTION: In a management system, a terminal 30 comprises: a communication unit 31 that connects to a work machine 10 and acquires identification information of the work machine 10; a display unit 32 that displays an inspection workflow including an instruction to acquire video image data of an inspection target portion of the work machine 10; an operation unit 35 that inputs inspection related information; an imaging unit 33 that acquires the video image data of the inspection target portion; and a search unit 36 that extracts the video image data of the inspection target portion. The server 20 includes a storage unit 22 that stores machine attribute information and the video image data of the inspection target portion of the work machine 10. The terminal also associates the identification information and the inspection related information with the video image data of the inspection target portion, and the server further associates the video image data with the machine attribute information and stores the same in the storage unit 22. The search unit may be provided in the server.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a system for managing an inspection workflow of a work machine.

Background Art

[0002] Since work machines such as hydraulic excavators are used differently at each work site, the inspection points also differ for each work machine even in maintenance work. Therefore, regardless of whether the maintenance staff is an experienced person or not, it is required to quickly and surely inspect many component parts, and the implementation of efficient inspection has become an issue. Therefore, in Patent Document 1, a technique for outputting a maintenance inspection flow is known in order to efficiently perform the maintenance inspection of a machine.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above Patent Document 1, when a defect is identified in a part included in the maintenance inspection flow of a machine, it is described that a treatment procedure for dealing with the defect is output (paragraphs 0052, 0068-0070, FIG. 7, etc.). However, the treatment procedure only amounts to a simple response of inputting the state of the part to be inspected. Therefore, when the cause of the defect cannot be identified and a fundamental solution cannot be achieved, the problem remains that it takes time to complete the repair because the corresponding is requested to a specialized treatment agency.

[0005] The present invention has been made in view of the above problems, and an object thereof is to shorten the time required to identify the cause of a defect in the maintenance inspection of a work machine so that the maintenance inspection can be performed quickly and surely.

Means for Solving the Problems

[0006] In order to solve the above problems, an inspection workflow management system according to the present invention includes a server that manages an inspection workflow for instructing an inspection procedure of a work machine, and a terminal connected to the server via a network. The inspection workflow management system is such that the terminal includes a communication unit that connects to the work machine to be inspected and acquires identification information of the work machine, a display unit that displays an inspection workflow including an acquisition instruction for moving image data of an inspection target part of the work machine, an operation unit for inputting inspection-related information corresponding to the inspection workflow, and a photographing unit for acquiring moving image data of the inspection target part. The server includes a storage unit that stores machine attribute information of the work machine associated with the identification information and the moving image data of the inspection target part acquired by the terminal. The terminal associates the moving image data of the inspection target part acquired by the photographing unit with the identification information and the inspection-related information. The server further associates the machine attribute information with the associated moving image data of the inspection target part and stores it in the storage unit. The terminal or the server further includes a search unit that extracts the moving image data of the inspection target part associated with at least one piece of information based on at least one piece of information among the identification information input to the terminal, the inspection-related information, and the machine attribute information.

Advantages of the Invention

[0007] According to the present invention, by associating images, videos, and sounds (moving image data) related to past defect cases with inspection results and information related to work machines, and enabling the extraction of related moving image data using these pieces of information as keywords, it becomes easy to determine whether a defect discovered during inspection is the same as a past defect case using the moving image data, leading to a reduction in the time required to identify the cause of the defect.

[0008] Further features related to the present invention will become apparent from the description in this specification and the accompanying drawings. Also, problems, configurations, and effects other than those described above will be clarified by the description of the following embodiments.

Brief Description of the Drawings

[0009]

Figure 1

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Mode for Carrying Out the Invention

[0010] [Example 1] Hereinafter, examples will be described with reference to the drawings. In this example, an example of a hydraulic excavator is given as a working machine, but the working machine is not limited to a hydraulic excavator, and may be a crane truck, a wheel loader, a forklift, a bulldozer, etc., or a combination thereof.

[0011] At the operation site of a working machine, a maintenance inspector (hereinafter referred to as a service technician) inspects the working machine using a mobile terminal. Since the inspection points vary depending on the operating status of the target working machine, they are output / displayed on the display screen of the terminal according to the inspection target. The service technician conducts the inspection according to a (digital) workflow. Here, the workflow indicates an inspection procedure involving screen transitions. If a defect is discovered during the processing of the procedure, moving image data is acquired and stored in association with the information regarding the defect. By adopting such a configuration, it becomes easy to determine whether it is the same as a past defect case by using the moving image data when a defect case occurs.

[0012] Management system The management system of this embodiment manages the operating information transmitted from the working machines to be managed and the moving image data of the inspection results transmitted from the mobile terminals in association with an arbitrary inspection procedure among the workflows including a plurality of inspection procedures, and provides it to the service technician when a similar event occurs.

[0013] FIG. 1 is a conceptual diagram for explaining the outline of an inspection workflow management system according to an embodiment of the present invention. The management system 100 of this embodiment includes a plurality of working machines 10, a maintenance management server 20 configured to be communicable with each of these working machines 10 via a network 40, and a terminal 30 communicable with the server 20 and the working machines 10 via the network 40.

[0014] The working machine 10 is equipped with an operation sensor and wireless communication means on the vehicle body, and can communicate with the maintenance management server 20 and the terminal 30 via the network 40. The maintenance management server 20 is for performing maintenance management of the working machine 10 such as a hydraulic excavator. The working machine 10 that is the target of maintenance management by the maintenance management server 20 is not limited to a hydraulic excavator, and may be, for example, a wheel loader, a road machine, a dump truck, or the like.

[0015] The maintenance management system 100 transmits a program related to failure prediction and maintenance information of the working machine to the terminal 30 in response to a request from an inspector of the working machine 10.

[0016] The terminal 30 is a portable notebook PC or a stationary PC installed in an office. However, it may be, for example, a smartphone, a tablet terminal, a mobile phone, or a PDA (Personal Data Assistant) carried by a maintenance worker or a user of the hydraulic excavator 10. The maintenance worker or the user can request inspection information related to a specific hydraulic excavator 10 from the server 20 by selecting the identification number of the specific hydraulic excavator 10 via the terminal 30.

[0017] Sensors for detecting the operating state are attached to each main part of the working machine 10, and a controller is provided for converting the operating state detected by the sensors into data and transmitting it to the server 20 via, for example, the network 40.

[0018] FIG. 2 is a block diagram showing the hardware configuration of the entire system according to this embodiment.

[0019] Terminal The terminal 30 includes a communication unit 31, a display unit 32, a photographing unit 33, a storage unit 34, an operation unit 35, a search unit 36, and a diagnosis unit 37.

[0020] The communication unit 31 has a communication function such as wireless communication for connecting to the network 40, for example. The display unit 32 includes, for example, a display and has a function of displaying a guidance screen related to the inspection work and each piece of information for the inspector.

[0021] The imaging unit 33 has an imaging function capable of capturing moving images. Further, it may be connected wirelessly / wiredly to, for example, a terminal having an imaging function (such as a smartphone). The storage unit 34 has a memory function and stores a workflow indicating the inspection procedure of the machine tool. The operation unit 35 consists of a touch panel provided on the display surface of the display unit 32 and performs input processing related to operations. Further, the operation unit 35 also has a function of receiving input of inspection results, search conditions, etc. For example, an inspector can input inspection results, etc. by pressing / selecting icons or buttons displayed on the display unit 32 or by inputting via the keyboard displayed on the display unit 32.

[0022] The search unit 36 can access various functions stored in the storage unit 22 (described later) of the maintenance management server 20 and execute information search and extraction. The diagnosis unit 37 identifies the cause of a malfunction based on the sensor data acquired from the machine tool 10 and displays the identification result on the display unit 32 or transmits it to the server 20.

[0023] Maintenance management server The maintenance management server 20 of this embodiment provides the terminal with information for supporting maintenance operations, such as the recommended timing for component replacement and the degree of progress of deterioration, based on the operation information and inspection results transmitted from the machine tool 10 and the terminal 30 possessed by the service technician. The maintenance management server 20 includes an arithmetic unit 21, a storage unit 22, an input / output unit 23, and a communication unit 24.

[0024] The arithmetic unit 21 includes a CPU (Central Processing Unit) and executes various programs. The storage unit 22 has a memory function similar to that of the storage unit 34, and stores the operation information of the machine tool 10 transmitted from the machine tool 10 and the maintenance information transmitted from the terminal 30 in association with the individual identification information of the machine tool 10. Also, the data generated during the processing by the arithmetic unit 21 is stored in the storage unit 22. Further, programs for causing the arithmetic unit 21 to exhibit various functions are stored in the storage unit 22. The input / output unit 23 includes, for example, a touch panel and accepts various inputs. The communication unit 24 accepts operation instructions from the terminal 30 and performs transmission and reception with the outside of the server, such as the machine tool 10 and the terminal 30.

[0025] Functions of server and terminal An application (inspection application) for executing inspections of the machine tool 10 is pre-installed in the terminal 30. By connecting to an arbitrary machine tool 10, the identification information (for example, model type, serial number) of the machine tool 10 is acquired.

[0026] The inspection application includes a plurality of programs corresponding to workflows for each machine. When connected to the target machine tool 10, the inspection application on the terminal is launched, and the identification information of the machine is automatically input to the terminal 30. Next, when an inspection execution is instructed via the terminal 30, a workflow corresponding to the identification information acquired from the connected machine tool 10 is displayed on the display unit of the terminal 30.

[0027] Here, the workflow indicates the inspection procedure for each defect in the machine tool. The workflow is composed of a plurality of inspection procedures, and a detailed screen including specific inspection contents is displayed in each inspection procedure. Therefore, when a certain inspection procedure is confirmed, the display transitions to a screen showing the next inspection procedure. Also, when the workflow is being executed, it is shown which inspection procedure is currently being performed among the whole.

[0028] The serviceman inspects the working machine 10 according to the workflow. When a defect is identified during the inspection procedure, a message instructing the terminal 30 to acquire data (photos, videos, audio) of the defective part as related information is displayed on the terminal 30. The serviceman operates the terminal 30 according to the instruction of the message to acquire the data of the defective part. The terminal 30 associates the acquired data with the identification information of the target working machine and the workflow.

[0029] The terminal 30 uploads the data associated with the workflow to the maintenance management server 20 via the communication unit 31. The maintenance management server 20 stores the data in the storage unit 22, and then, when there is a request from any terminal 30 that wishes to refer to a moving image similar to the defective event, it outputs and displays the moving image data according to the conditions specified by the attributes of the working machine to any terminal 30.

[0030] Figure 3 is a flowchart showing the processing executed by the system in this embodiment. First, in S1, after the serviceman connects the terminal 30 to the working machine 10 and selects the information identifying the machine to be inspected, the inspection is started. Next, in S2, the communication unit 31 of the terminal 30 is activated and the communication state with the working machine 10 is established. In S3, the workflow (inspection procedure) is displayed on the display screen of the terminal 30. The workflow is stored in the terminal 30, but it may also be stored in the server 20. In that case, the terminal 30 acquires the workflow information from the server 20.

[0031] In S4, the workflow proceeds with inspection by transitioning to a screen that displays the inspection procedure. If the terminal 30 confirms that a defect has occurred during this process, an instruction to acquire data (such as moving images or audio) of the target location is displayed, and the necessary data is acquired via the imaging unit 33. In S5, an instruction to acquire sensor values representing the operating state of the location where the defect has occurred is displayed in the workflow, and the sensor values are acquired from the working machine 10 via the communication unit 31. In S6, the terminal 30 identifies the cause of the defect based on the acquired sensor values. At this time, the identification result of the defect may be displayed on the display unit 32.

[0032] In S7, the terminal 30 that has identified the cause of the defect ends the inspection. In S8, the terminal 30 transmits data (including videos and audio) associating the working machine 10 to be inspected with the inspection result to the server 20 via the communication unit 31. In S8, the terminal 30 associates various information of the working machine 10 to be inspected with the acquired moving image data of the inspection result. Here, in this embodiment, this association is performed by "tagging", and the details of this tagging will be described later. In S9, the terminal 30 transmits the associated moving image data (including videos and audio) to the server 20 via the communication unit 31. In S10, the server 20 associates the received moving image data with the attribute information of the machines existing on the server. In S11, the server 20 stores the moving image data associated with the machine's attribute information in the storage unit 22. The processing ends here.

[0033] As described above, by associating (tagging) the information of the working machine and the inspection result with the acquired moving image data and storing them in the server and the terminal as in this embodiment, a service technician who later performs an inspection can search for this information using keywords or the like and refer to moving images or the like similar to the extracted defect events, thereby enabling the cause of the defect to be identified quickly.

[0034] The features of the workflow described above are listed below. 1) In the workflow, first, an alarm is displayed to identify where and what kind of malfunction has occurred in the working machine based on the data of the operating state detected by the sensors of the working machine. 2) Next, a detailed screen showing the confirmation items (checkpoints) for the part related to the malfunction is displayed. 3) Malfunctions often involve multiple locations in a complex manner. And since there are necessary confirmation items for each candidate considered to be related to the malfunction, the workflow is composed of multiple detailed screens for each inspection point. The detailed screens are displayed sequentially, and may include reference moving image data. In that case, a display indicating "There is a related moving image" is shown at the relevant location. And on the terminal, by selecting and specifying the said display, the moving image data stored in the server is displayed. The display may occur each time the corresponding screen is transitioned to, at the beginning or end of the workflow, or a combination thereof, and the timing of the display is not limited. In this way, the purpose is to identify the locations that are candidates for the cause of the malfunction through the confirmation items on each detailed screen and to obtain the related moving image data. Since it is a workflow, if the necessary confirmation items on the detailed screen are completed, the next detailed screen is transitioned to. If a candidate for the cause of the malfunction is identified as a result of the confirmation items on any detailed screen, detailed inspections such as checking the sensor values are performed to further identify the root cause. The detailed screens of the workflow include text messages regarding the confirmation items and circuit diagrams of the inspection points, etc. 4) The acquisition of the moving image data is arbitrarily determined by the executor of the workflow.

[0035] Method for managing moving image data In the above, the moving image data is acquired at the terminal 30, and so-called "tagging" is performed to associate the detailed screen with the identification information of the working machine to be inspected. The result of the tagging is displayed on the display unit 32 of the terminal 30. However, each time the moving image data is acquired, a message indicating "acquired" may be displayed on the detailed screen, or at the end of the workflow, the correspondence between the moving image data and the detailed screen may be listed and displayed in a batch. Note that the display format is just an example and is not limited to these.

[0036] Tagging Tagging that associates the moving image data acquired during the workflow process with inspection results and information regarding the working machine is performed by the terminal 30 and the server 20. Hereinafter, the former will be referred to as "primary tagging" and the latter as "secondary tagging".

[0037] FIG. 6 is a conceptual diagram showing tagging. Primary tagging is performed by the terminal 30 when an inspection of any working machine 10 is carried out along the workflow. Specifically, information regarding the working machine (machine identification information), information regarding the inspection (inspection-related information), and the moving image data 200 acquired during the workflow process are associated with each other. The machine identification information and the inspection-related information will be described later.

[0038] Secondary tagging is to further classify and associate the information that has been primarily tagged by the terminal 30 based on attributes common to a plurality of working machines 10 (machine attribute information) by the server 20. That is, the information of the individual working machines 10 that has been primarily tagged is aggregated by being secondarily tagged by the server 20. In this way, the workflow for each working machine 10 and the information of the working machine 10 that has been primarily tagged by the terminal 30 are secondarily tagged and stored in the server 20.

[0039] FIG. 7 is a diagram showing the types of tagging data. "Machine identification information" is information for identifying individual working machines 10, such as "machine model", "manufacturing number", etc., and is stored in the controller of the working machine 10. "Inspection-related information" is information held for each workflow, such as "defect phenomena to be inspected", "contents of inspection work", "inspection parts", "parts where moving images are acquired", etc. "Machine attribute information" is information regarding attributes common to working machines regardless of machine model or manufacturing number, such as "information of customers who own the working machine (customer name, business type, etc.)", "region / country where the working machine operates", "history of inspection and repair of the working machine (time, content, etc.)", "operating environment of the working machine (tropical, cold region, highland, flatland, etc.)", "work content of the working machine (civil engineering, demolition, crushing, etc.)", "workload of the working machine (engine output, etc.)", and is accumulated in the server 20 in association with the machine identification information.

[0040] Among the above information, the information associated by the primary tagging executed by the terminal 30 is the machine identification information, which is information for each individual working machine 10, and the inspection-related information, which is the information for which inspection results are obtained. The information associated by the secondary tagging executed by the server 20 is the machine attribute information, which is information commonly accumulated for a plurality of working machines.

[0041] In this way, since the inspection results in the workflow for each working machine are associated with the moving image data (primary tagging), and further classified and associated according to the attributes of the working machines (secondary tagging), when a defect occurs in a certain working machine and inspection is carried out, the moving image data obtained in the past inspections of other working machines having the same attributes as the working machine to be inspected, such as other working machines of the same machine model, other working machines in which the same defect phenomena have occurred, or other working machines operating in the same region / country, can be easily searched as related data and the extracted moving image data can be referred to. This makes it possible to realize efficient inspections.

[0042] The tagged moving image data is stored in the server 20 and can be searched and extracted by the terminal 30. Specifically, during the progress of the workflow or before the start, when the above-mentioned tagging information is input at the terminal 30 as a search condition, the moving image data corresponding to the search condition is extracted from the moving image data stored in the server 20, and the extraction result is displayed on the display unit 32 of the terminal. The search condition may be any of the "machine identification information" and "inspection-related information" set in the primary tagging, the "machine attribute information" set in the secondary tagging, or a combination thereof, etc., and may be arbitrarily specified.

[0043] By tagging the moving image data, it becomes possible to perform reverse lookups when searching and extracting in similar cases later. The display order may also be made different according to the number of extraction results. For example, a mark (e.g., "☆") indicating that it is useful for reference is displayed on the display unit 32 of the terminal 30 so that it can be selected. When the extracted moving image data is useful for identifying the cause of a defect, if the operator of the terminal 30 performs an operation to select the mark, it is assumed that the fact that the mark has been selected is associated with the moving image data and stored in the storage unit 22 of the server. Then, when the terminal 30 performs a search and extraction of the moving image data, it determines the presence or absence of the moving image data associated with the mark, and if there is data, it displays the extraction results on the display unit 32 in the order of the moving image data with more marks selected. The number of displayed items can be arbitrarily set.

[0044] In the above flowchart, the sensor value is acquired at S5, but a defective part may also be specified during the workflow. In that case, all the detailed screens included in the workflow may not be transitioned but interrupted and restarted after dealing with the defective part.

[0045] [Example 2] FIG. 4 is a block diagram showing the hardware configuration of the inspection workflow management system according to Example 2 of the present invention. The system according to Example 2 is different from that of Example 1 in that the maintenance management server 20 is provided with a registration management unit 25 for managing the "acquisition history of moving image data".

[0046] In Example 1, moving image data was acquired only for the locations determined to be necessary by the workflow executor. However, even for moving images of locations that are not necessary during the inspection of the work machine to be inspected, they may be useful during the inspection of another work machine. Therefore, the acquisition of moving image data may not be based solely on the judgment of the workflow executor, but may also be performed according to the display on the detailed screen.

[0047] Therefore, in the registration management unit 25, the acquisition history (date and time) of moving image data for each detailed screen is managed. And within an arbitrarily set period, by referring to the number of times of acquisition of moving image data for each detailed screen stored in the registration management unit 25, it can be considered that the higher the number of acquisitions of a detailed screen, the higher the necessity of moving image data, and the acquisition of moving image data may be promoted.

[0048] In addition to the explanatory text in the form of a text message on the detailed screen, having a moving image can also help with a smooth understanding of the inspection procedure. Therefore, there are also locations where it is particularly necessary to acquire moving image data with a focus for reference in case of malfunctions. Therefore, in this embodiment, at the input / output unit 23 of the server 20, the necessary moving images for each detailed screen of the workflow are specified in advance. For example, during the display of the detailed screen, a text message or icon may be used to display a notice in a pop-up form at a specific location that "moving image data is required".

[0049] Figure 5 is a flowchart showing the processing executed by the inspection workflow management system according to Example 2. This example relates to the registration and management of moving image data. The differences between this example and the processing in Example 1 of FIG. 3 are S51, S52, and S53. Therefore, the description of other steps will be omitted.

[0050] In S51, the registration management unit 25 performs registration management. Specifically, the registration management unit 25 temporarily stores the acquired moving image data and displays it on the terminal 30, and stores it in response to an instruction for final storage on the terminal 30 after the workflow ends.

[0051] In S52, an instruction for data acquisition is issued from the arithmetic unit 21 of the server. When there is a data acquisition instruction during the workflow (Y), it proceeds to S53 to acquire moving image data. The arithmetic unit 21 has, for example, a moving image presence / absence determination function, determines a detailed screen that does not include a moving image during the workflow, and displays a message notifying that fact when transitioning to a detailed screen that does not include a moving image. For example, a message "No moving image data" is displayed near the specified part where the acquisition of moving image data is designated. When there is no data acquisition instruction during the workflow (N), it proceeds to S5 to acquire sensor values such as parts to be inspected. By these processes, it is possible to surely recognize the acquisition of moving image data on the detailed screen of the workflow.

[0052] The machine identification information is directly acquired from the working machine, while the inspection-related information includes information input by the service technician. Therefore, there is a possibility of human input errors. Also, the moving image data acquired by the terminal may be inappropriate. For example, there may be a problem that an accurate association with the detailed screen cannot be made if the moving image is of a part different from the shooting target of the moving image data required on a certain detailed screen, or if the shooting target is not accurately shot. Therefore, when acquiring moving image data, it is temporarily stored in the terminal (primary registration), and then it is notified on the terminal whether the moving image data to be registered later and the information tagged with the associated primary tag are correct, and after confirmation, it is finally registered (secondary registration). In this way, by performing two-stage registration management to confirm whether there is an error in the moving image acquired by the moving image acquirer and the information associated in the terminal, reliable registration of moving image data in the server is performed.

[0053] [Modification Example] Finally, a modification example will be described with reference to FIG. 8. FIG. 8 is a block diagram showing the hardware configuration of the entire system according to the modified example. As shown in FIG. 8, in the modified example, the server 20 includes a search unit 26 and a diagnosis unit 27. The server 20 according to the modified example exhibits the same functions as the search unit 36 and the diagnosis unit 37 of the terminal described above.

[0054] Note that in the modified example, the terminal 30 does not include a search unit and a diagnosis unit, but the terminal 30 may also be provided with these functional units in the same manner as in the above-described embodiment, so that the search or diagnosis can be executed by either the server 20 or the terminal 30.

[0055] According to the embodiments of the present invention described above, the following operational effects can be obtained.

[0056] (1) The inspection workflow management system according to the present invention is an inspection workflow management system including a server that manages an inspection workflow for instructing an inspection procedure of a working machine, and a terminal connected to the server via a network. The terminal includes a communication unit that connects to the working machine to be inspected and acquires identification information of the working machine, a display unit that displays an inspection workflow including an acquisition instruction for moving image data of an inspection target part of the working machine, an operation unit that inputs inspection-related information corresponding to the inspection workflow, and a photographing unit that acquires moving image data of the inspection target part. The server includes a storage unit that stores machine attribute information of the working machine associated with the identification information and the moving image data of the inspection target part acquired by the terminal. The terminal associates the identification information with the moving image data of the inspection target part acquired by the photographing unit in relation to the inspection-related information. The server further associates the machine attribute information with the moving image data of the inspection target part for which the association has been made and stores it in the storage unit. The terminal or the server further includes a search for extracting the moving image data of the inspection target part associated with at least one piece of information based on at least one piece of information among the identification information input to the terminal, the inspection-related information, and the machine attribute information.

[0057] With the above configuration, images, videos, and sounds (moving image data) related to past defect cases are tagged in association with inspection results and information on the working machine, and by enabling the search and extraction of related moving image data using these pieces of information as keywords, it becomes easy to determine whether the defect discovered during inspection is the same as past defect cases using the moving image data, leading to the shortening of the time required to identify the cause of the defect.

[0058] (2) At least one of the terminal or the server further includes a diagnostic unit that identifies the cause of a defect in the inspection target part based on sensor values representing the operating state of the inspection target part of the working machine. When moving image data is acquired by the imaging unit in the terminal, the terminal displays an acquisition instruction for the sensor values on the display unit. The diagnostic unit identifies the cause of the defect in the inspection target part based on the sensor values acquired by the terminal and causes the display unit to display the identification result. As a result, for example, by displaying the identification result of the cause of the defect on the display unit, the user of the system can visually grasp the cause of the defect in the working machine.

[0059] (3) The server further includes a registration management unit that stores the acquisition history of moving image data of the inspection target part corresponding to the inspection workflow. When the acquisition history of the moving image data of the inspection target part corresponding to the inspection workflow displayed on the display unit is stored in the registration management unit in the terminal, the terminal displays the moving image data of the inspection target part corresponding to the inspection workflow in a part of the display area of the inspection workflow on the display unit. As a result, the user of the system can easily grasp whether there is moving image data of the inspection target part corresponding to the inspection workflow.

[0060] (4) The registration management unit calculates the number of acquisitions based on the acquisition history of the moving image data of the inspection target part corresponding to the inspection workflow, and the terminal displays the number of acquisitions in the display area of the inspection workflow. As a result, it becomes possible to set a high priority for moving image data with a large number of acquisitions, assuming that it has a high necessity for acquisition.

[0061] (5) The terminal determines the display order of the extraction results of the moving image data of the inspection target part in the display unit based on the degree of reference of the moving image data. As a result, the user of the system can grasp at a glance the importance of the moving image data and can utilize it for maintenance inspection.

[0062] (6) The machine attribute information includes at least one of information about the customer who owns the working machine, information about the area where the working machine operates, information about the inspection and repair history of the working machine, information about the work content of the working machine, information about the operating environment of the working machine, and information about the working load of the working machine. In this way, by including information about attributes common to multiple working machines in the machine attribute information, it becomes easy to search for and extract moving image data of similar defects.

[0063] Note that the present invention is not limited to the above-described embodiments, and various modifications are possible. For example, the above embodiments have been described in detail for easy understanding of the present invention, and the present invention is not necessarily limited to the aspect having all the configurations described. Also, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment. Further, the configuration of another embodiment can be added to the configuration of one embodiment. Also, a part of the configuration of each embodiment can be deleted, or other configurations can be added or replaced.

Explanation of Reference Numerals

[0064] 10 Working machine, 20 Maintenance management server, 24 Communication unit, 25 Registration management unit, 30 Terminal, 31 Communication unit, 32 Display unit, 33 Photographing unit, 35 Operation unit, 36 Search unit, 37 Diagnosis unit

Claims

1. An inspection workflow management system including a server that manages an inspection workflow for instructing an inspection procedure of a work machine, and a terminal connected to the server via a network, wherein the terminal includes a communication unit that connects to the work machine to be inspected and acquires identification information of the work machine, a display unit that displays the inspection workflow including an instruction to acquire moving image data of an inspection target part of the work machine, an operation unit for inputting inspection-related information corresponding to the inspection workflow, a photographing unit that acquires moving image data of the inspection target part, the server includes a storage unit that stores machine attribute information of the work machine associated with the identification information and the moving image data of the inspection target part acquired by the terminal, the terminal associates the moving image data of the inspection target part acquired by the photographing unit with the identification information and the inspection-related information, the server further associates the machine attribute information with the moving image data of the inspection target part for which the association has been made and stores the same in the storage unit, the terminal or the server further includes a search unit that extracts the moving image data of the inspection target part associated with at least one of the identification information, the inspection-related information, and the machine attribute information input to the terminal based on at least one of the information, characterized by an inspection workflow management system.

2. The inspection workflow management system according to claim 1, wherein at least one of the terminal or the server further includes a diagnosis unit that identifies a cause of a defect in the inspection target part based on a sensor value representing an operating state of the inspection target part of the work machine, when the moving image data is acquired by the photographing unit, the terminal displays an instruction to acquire the sensor value on the display unit, the diagnosis unit identifies a cause of a defect in the inspection target part based on the sensor value acquired by the terminal and causes the display unit to display the identification result, characterized by an inspection workflow management system.

3. The inspection workflow management system according to claim 1, wherein the server further includes a registration management unit that stores an acquisition history of moving image data of an inspection target part corresponding to the inspection workflow. When the acquisition history of the moving image data of the inspection target part corresponding to the inspection workflow displayed on the display unit is stored in the registration management unit, the terminal displays the moving image data of the inspection target part corresponding to the inspection workflow in a part of the display area of the inspection workflow on the display unit. An inspection workflow management system characterized by the above.

4. The inspection workflow management system according to claim 3, The registration management unit calculates the number of acquisitions based on the acquisition history of the moving image data of the inspection target part corresponding to the inspection workflow. The terminal displays the number of acquisitions in the display area of the inspection workflow. An inspection workflow management system characterized by the above.

5. The inspection workflow management system according to claim 1, The terminal determines the display order of the extraction results of the moving image data of the inspection target part on the display unit based on the degree of reference of the moving image data. An inspection workflow management system characterized by the above.

6. The inspection workflow management system according to claim 1, The machine attribute information includes at least one of information about the customer who owns the work machine, information about the region where the work machine operates, information about the inspection and repair history of the work machine, information about the work content of the work machine, information about the operating environment of the work machine, and information about the work load of the work machine. An inspection workflow management system characterized by the above.

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