WO2019021592A1 - Task refinement assistance system and method - Google Patents

Task refinement assistance system and method Download PDF

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Publication number
WO2019021592A1
WO2019021592A1 PCT/JP2018/019094 JP2018019094W WO2019021592A1 WO 2019021592 A1 WO2019021592 A1 WO 2019021592A1 JP 2018019094 W JP2018019094 W JP 2018019094W WO 2019021592 A1 WO2019021592 A1 WO 2019021592A1
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WIPO (PCT)
Prior art keywords
work
video data
task
management unit
time
Prior art date
Application number
PCT/JP2018/019094
Other languages
French (fr)
Japanese (ja)
Inventor
禎生 菅原
悠太 本田
英憲 橋本
隆之 門間
隆之 武澤
青木　敏雄
椎葉　謙司
Original Assignee
株式会社日立製作所
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Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to CN201880049235.6A priority Critical patent/CN110945444A/en
Publication of WO2019021592A1 publication Critical patent/WO2019021592A1/en

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS], computer integrated manufacturing [CIM]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/04—Manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

Definitions

  • the present invention relates to a work improvement support system and method.
  • Products such as control panels, office equipment, automobiles, aircraft, industrial machines, construction machines, etc. are manufactured using a production method such as line method, cell method and dynamic cell method.
  • a production method such as line method, cell method and dynamic cell method.
  • One product is produced, for example, through a plurality of work processes such as preparation of parts and materials, sheet metal, painting, assembly of main parts, assembly of main parts to the main body, inspection and the like.
  • work processes such as preparation of parts and materials, sheet metal, painting, assembly of main parts, assembly of main parts to the main body, inspection and the like.
  • At a production site products are produced according to a pre-planned production plan, but due to various circumstances, production plan and production performance often deviate.
  • so-called bottleneck work there is a large gap between the plan and the actual results.
  • work and presented the countermeasure against a bottleneck is known (patent document 1).
  • Patent Document 1 “estimates devices that become bottlenecks according to production plans and work in progress and their occurrence times, and classifies each bottleneck device according to the occurrence timing and the state of the corresponding device group for each bottleneck factor, "Perform measures in advance according to the classification result" (Patent Document 1, paragraph 0010, abstract), in which the process where the bottleneck occurs and the work video data obtained by photographing the situation of the site where the operator works is associated Absent.
  • Patent Document 1 a user such as a manager of a production process can not examine the cause of the bottleneck or the improvement measures while confirming the situation of the work site with a video, which is convenient to use It is bad.
  • the present invention has been made in view of the above problems, and an object thereof is to provide a user-friendly operation improvement support system and method.
  • a work improvement support system is a work improvement support system that supports improvement of a work process, and a performance management unit that manages performance data regarding each work included in the work process, and Based on a plan management unit that manages plan data related to work, a work video management unit that manages work video data obtained by photographing the situation of a work site where each work is performed by a worker, and performance data and plan data related to work If it is determined that the work corresponds to a predetermined work to be improved and it is determined that the work corresponds to a predetermined work, predetermined work video data relating to the work determined to correspond to the predetermined work among the work video data And an operation analysis unit for extracting
  • task video data relating to the task can be extracted, so the user can improve the task based on the task video data. Can be considered.
  • the work improvement support system 1 extracts work that is a bottleneck from among a plurality of works included in the work process, as described later, and captures work video data of the situation of the work site 2 Among the above, predetermined work video data to which the situation of the bottleneck work is transferred is extracted. As a result, the user in charge of the improvement of the work process can estimate the cause of the bottleneck work while devising the countermeasure for solving the bottleneck work while looking at predetermined work video data.
  • FIG. 1 is an explanatory view showing an overall outline of a work improvement support system.
  • the work improvement support system 1 supports the creation of improvement measures by providing the user with predetermined work video data obtained by capturing the situation of the work to be improved.
  • the work improvement support system 1 can be configured, for example, using at least one computer.
  • An example of a computer system for realizing the work improvement support system 1 will be described later with reference to FIG.
  • the work improvement support system 1 includes functions 11 to 19 described later from an arithmetic unit as a computer resource, a memory unit, an auxiliary storage unit, an input / output interface circuit, a communication interface circuit (all not shown) and a predetermined computer program. To achieve.
  • the work site 2 will be described first.
  • the work site 2 includes at least one cell 21.
  • the worker W produces the product 25 in accordance with the work procedure displayed on the work instruction terminal 23.
  • the cell production method is described as an example, the present invention is not limited to this, and can be applied to a line method and a dynamic cell method.
  • the work site 2 of the present embodiment is suitable for so-called high-mix low-volume production, it is also applicable to low-mix high-volume production and low-mix low-volume production.
  • the cell 21 is provided with a plurality of cameras 24 for monitoring the status of work by the worker. At least a part of the cameras 24 of each camera 24 can monitor not only the working situation but also the situation around the cell 21. Depending on the installation location of the camera 24, the installation angle, the shooting angle of view, etc., the situation around the cell 21 (arranged around the cell 21 other than the hand or foot of the worker's work and the entire image of the worker) Other cells) can also be monitored. Although five cameras 24 are illustrated in FIG. 1, the present invention is not limited to this, and four or less cameras or six or more cameras can be associated with the cell 21 and installed.
  • an RFID reader 22 that reads information from an RFID (Radio Frequency Identifier) tag 26 is provided.
  • the RFID tag 26 can be divided into, for example, a work tag 26-1 possessed by the worker W and a product tag 26-2 provided on the product 25.
  • the work tag 26-1 can be further divided into a worker tag for storing the identification information of the worker W and a work instruction slip tag indicating a cell (placement destination process) of the placement destination of the worker (both of them Not shown).
  • the RFID reader 22 reads out, from the work tag 26-1, identification information for identifying a worker and identification information for identifying a cell (process).
  • the work improvement support system 1 can grasp which worker 21 is disposed in which cell 21 based on the information read by the RFID reader 22. In addition, by acquiring information on the product 25 from the product tag 26-2, it is possible to grasp the current position of the product 25 and the manufacturing history.
  • the work instruction terminal 23 displays a screen for teaching the work procedure in the cell 21 to the worker.
  • the worker When the worker completes one work procedure, the worker operates a work completion button indicating the completion of the work procedure or a next button requesting the display of the next work procedure on the work instruction terminal 23. Every time the worker finishes each work procedure or calls the explanation of the next work procedure, the button is operated as "operation from the worker".
  • the work improvement support system 1 can grasp the progress of the work procedure in each cell in real time by monitoring the operation to the work instruction terminal 23.
  • the worker can also have a worker terminal 27.
  • the worker terminal 27 is, for example, a mobile phone (including a so-called smart phone) or a portable information terminal provided by a company. The use status of the worker terminal 27 is managed.
  • the configuration of the work improvement support system 1 will be described.
  • the work improvement support system 1 includes, for example, a work status monitoring unit 11, a production performance management unit 12, a production plan management unit 13, a worker management unit 14, a work video management unit 15, a work analysis unit 16, and a screen. And a display unit 17. Further, as shown in an embodiment described later, the work improvement support system 1 can also include an actual work time detection unit 18 and a worker terminal management unit 19 that manages the worker terminal 27.
  • the work status monitoring unit 11, the production results management unit 12, the production plan management unit 13, the worker management unit 14, the worker terminal management unit 19 and the like are provided outside the work improvement support system 1, and the external functions 11 to The configuration may be such that only the necessary information is transmitted to the work analysis unit 16 from 14, 19 and the like.
  • the work status monitoring unit 11 monitors the progress of the work in each cell 21 based on the identification information read from the RFID tag 26 by the RFID reader 22 of each process and the operation by the worker to the work instruction terminal 23. And send it to the production results management unit 12.
  • the production performance management unit 12 as an example of the “performance management unit” manages the production performance for each cell (process) based on the data from the work status monitoring unit 11.
  • the production plan management unit 13 as an example of the “plan management unit” manages the production plan of the work site 2.
  • the production plan management unit 13 manages a production plan for the entire production site and a production plan for each cell.
  • the worker management unit 14 manages, for example, the worker number of each worker, the name, the type of work, the working hours, the history of the assigned process, the presence or absence of the skills required in each cell, and the like. Information managed by the worker management unit 14 is written in the work tag 26-1.
  • the work video management unit 15 stores work video data shot by each camera 24 of the work site 2 in the work video storage unit 151 in association with the shooting time, and manages it.
  • the work video management unit 15 also stores and manages video data related to times other than work time, such as 24 hours a day, 365 days a year, or 24 hours of all operation days, as a part of work video data. That is, the work video management unit 15 manages video data for a long time and a long time, and manages video data not only for the time when the worker is working but also for the time zone not directly related to the work.
  • the work video management unit 15 can also include an image quality control unit 152 that controls the image quality of a part or all of the cameras 24.
  • the work analysis unit 16 performs “a predetermined work to be improved in each cell based on the production result data of each cell managed by the production result management unit 12 and the production plan for each cell managed by the production plan management unit 13. It is determined whether or not a bottleneck operation as "has occurred.” That is, the work analysis unit 16 detects a work estimated to be a bottleneck work from the actual value (work time) and the target value (target work time) for each work as a bottleneck work.
  • the work analysis unit 16 reads work video data corresponding to the detected bottleneck work from the work video management unit 15 and causes the screen display unit 17 to display the read data.
  • the work analysis unit 16 can display not only the work video data of the bottleneck work but also predetermined information on the bottleneck work on the screen display unit 17.
  • predetermined information on the bottleneck work for example, information indicating the work procedure of the bottleneck work, information on the worker in charge of the bottleneck work, information on the product 25 related to the bottleneck work and its parts, etc. is there.
  • a user such as a production manager in charge of improvement of the work process confirms the work video data of the bottleneck work displayed on the screen display unit 17 to estimate the cause of the bottleneck and formulate a countermeasure can do.
  • the prepared measures are updated as work procedure instruction information after verification.
  • the worker can perform the work with reference to the work procedure instruction information (the information indicating how to proceed the work with characters, an image, and the like) for which the countermeasure has been taken.
  • the actual work time detection unit 18 detects, from the apparent work time by the worker W, the time when the work was actually possible (the actual work time), and notifies the work analysis unit 16 of the detected time. As shown in the embodiment described later, for example, the actual work time detection unit 18 uses the work video data managed by the work video management unit 15 and the usage history of the worker terminal 27 managed by the worker terminal management unit 19. Based on the actual work time can be calculated.
  • FIG. 2 is a functional block diagram of the work improvement support system 1.
  • the work status monitoring unit 11 includes, for example, an RFID reader 22, a work instruction terminal 23, and an RFID management system (not shown) that manages RFID data read by the RFID reader 22.
  • the production record management unit 12 reads data indicating the progress status of the work site from the RFID data and the contents of the operation to the work instruction terminal 23, and grasps the production record.
  • the data collection unit 101 regularly or irregularly acquires actual data about each work in each cell 21 from the production results management unit 12 and, from the production plan management unit 13, a production plan by process (production plan by cell) Get).
  • the data collection unit 101 does not have to periodically acquire the process-based production plan, and may obtain the process-based production plan from the production plan management unit 13 when the production plan is changed.
  • the data collection unit 101 stores, in the data pool 102, the performance data of each cell 21 acquired from the production performance management unit 12 and the process-specific production plan acquired from the production plan management unit 13.
  • the actual data also includes data of work time required for each work procedure in each cell.
  • the work analysis unit 16 reads the process plan and actual data from the data pool 102, analyzes the work state of each cell 21, extracts bottleneck work, and displays it on the screen display unit 17. Further, the work analysis unit 16 causes the screen display unit 17 to display work video data corresponding to the bottleneck work by giving an instruction to the work video management unit 15.
  • the work video data managed by the work video management unit 15 and the performance data are managed by the same time managed by the time management unit 103.
  • the time management unit 103 may acquire and use time information from a time server installed outside the work improvement support system 1 or may use a timer in the time management unit 103.
  • the work video data corresponding to the bottleneck work can be read out from the work video management unit 15.
  • marker information indicating a break of work may be set in work video data each time each work is completed.
  • FIG. 3 is an example of a computer system that implements the work improvement support system 1.
  • the computer system 1000 is configured, for example, by connecting a video management server 1002, a database server 1003, an application server 1004, and a personal computer 1005 by a communication network CN.
  • the video management server 1002 is a computer that implements the work video management unit 15.
  • the video management server 1002 is connected to each camera 24 of each cell 21 via the hub 1001, and stores work video data acquired from each camera 24 in a hard disk drive, a tape drive, a semiconductor memory or the like.
  • the hub 1001 can also have a function of supplying power to each camera 24.
  • the database server 1003 is, for example, a computer that implements the data pool 102 and the like.
  • the application server 1004 is, for example, a computer for realizing the production record management unit 12 and the production plan management unit 13.
  • the personal computer 1005 is, for example, a computer that implements the work analysis unit 16 and the screen display unit 17.
  • FIG. 3 is only an example of a computer system applicable to the present embodiment.
  • a computer system having a configuration other than that shown in FIG. 3 can also be used for the work improvement support system 1 of this embodiment.
  • a copy of work video data managed by the video management server 1002 is provided in a place physically close to the personal computer 1005. May be As a result, the work analysis unit 16 operating on the personal computer 1005 can quickly obtain a copy of the work video data and cause the screen display unit 17 to display the copy.
  • FIG. 4 shows an example of the work record management table 121.
  • the work record management table 121 manages the contents of each work.
  • the work record management table 121 can be created for each cell 21, but FIG. 4 describes one cell.
  • the work record management table 121 can be managed by the production record management unit 12.
  • the work record management table 121 manages, for example, the product name 1211, the serial number 1212, the work procedure 1213, the work time 1214, and the work start time 1215 in association with one another.
  • the work record management table 121 may include items other than those shown in FIG. 4 (for example, manufacturing date and time, worker identification information, etc.).
  • the product name 1211 is the name of the product 25 manufactured in the cell 21.
  • the serial number 1212 is a serial number identifying a product.
  • the work procedure 1213 is information identifying the work procedure performed in the cell 21, for example, a work name.
  • the work time 1214 is the time required for each work procedure. As described above, the worker carries out the work based on the work instruction information displayed on the work instruction terminal 23, and operates the terminal 23 before and after the start of the work. Thus, the work status monitoring unit 11 can grasp the time required for each worker of each cell 21 for each work.
  • the work start time 1215 is the start time of each work.
  • the break of work is detected from the operation to the work instruction terminal 23, the work start time is specified and stored in the item 1215 of the work record management table 121.
  • FIG. 5 is an example of the work procedure management table 131.
  • the work procedure management table 131 manages storage locations of target values of each work and work instruction information.
  • the work procedure management table 131 can be provided for each product 25.
  • FIG. 5 the case where the work procedures for a plurality of products 25 are managed by one table 131 is taken as an example.
  • the work procedure management table 131 can be managed by the production plan management unit 13.
  • the work procedure management table 131 manages a product name 1311, a work procedure 1312, a target work time 1313, and a storage destination 1314 of work instruction information in association with each other.
  • the product name 1311 is the name of the product 25.
  • the work procedure 1312 is information for identifying each work procedure (each work) executed to produce the product.
  • the target work time 1313 is a target time required to finish each work procedure (each work).
  • the storage destination 1314 of the work instruction information is an address storing information for instructing the operator by text, image or voice of the work procedure necessary for manufacturing the product 25.
  • One piece of work instruction information may be prepared for the entire series of operations required to manufacture the product 25, or the work instruction information may be prepared for each individual work procedure.
  • FIG. 5 shows the case where work instruction information is prepared for the entire series of work.
  • the work instruction information includes an operation button or an operation instruction for inputting the start or end of each work procedure to the terminal 23.
  • FIG. 6 is a flowchart showing work video management processing. This process is executed by the work video management unit 15.
  • the work site 2 and the work improvement support system 1 are physically far apart, and copying of work video data is near the work improvement support system 1 in order to reduce the delay in reading work video data. The case where it provides in is demonstrated.
  • the work video management unit 15 starts recording in response to the recording start instruction from the work analysis unit 16 (S11: YES). Basically, in the present embodiment, the state of the cell 21 of the work site 2 not only while the work is being performed but also while the work is not being performed (time before the start of the work, time after the end of the work) Shoot and save (and the situation around it).
  • the work video management unit 15 starts shooting with each camera 24 of each cell 21 (S12), and stores the shot image data in the work video storage unit 151 (S13).
  • the work video management unit 15 determines whether the transfer start timing has arrived (S14), and if it is determined that the transfer start timing has come (S14: YES), the work video data (image data and display in the figure) is specified. Transfer to the transfer destination (S15). As the transfer start timing, for example, a late-night time zone with a small load on the computer system 1000 may be selected.
  • the work video management unit 15 determines whether to stop the recording of the work status (S17). In the present embodiment, in order to continue recording regardless of the presence or absence of work, the process returns to step S12. On the other hand, for example, in preparation for maintenance work of the camera 24, recording can also be stopped.
  • steps S14 to S16 may be omitted.
  • FIG. 7 is a flowchart showing work improvement support processing. This process is performed by the work analysis unit 16.
  • the work analysis unit 16 acquires the target work time and the work time for each work from the production plan management unit 13 and the production results management unit 12 (S21).
  • the work analysis unit 16 extracts a work estimated to be a bottleneck work from the degree of deviation between the target work time and the work time, and an information screen (for example, a cell number, a work name, etc.) specifying the bottleneck work. Display on the display unit 17 (S22).
  • the user who is the person in charge of improvement of the work process can select one or more from the bottleneck work displayed on the screen display unit 17 (S23: YES).
  • the work analysis unit 16 reads work video data corresponding to the work (bottleneck work) selected by the user from the work video management unit 15 (S24), reproduces the read work video data, and displays it on the screen display unit 17. (S25).
  • the user can check the work start time and the time information in the work video data. Work video data relating to the selected work can be identified.
  • the user can, while looking at the work video data displayed on the screen display unit 17, consider the cause of the work becoming a bottleneck or can consider measures for eliminating the bottleneck.
  • the improvement plan (bottleneck countermeasure) prepared by the user is registered in the production plan management unit 13 as a modified version of the work instruction information (S26).
  • the user can relatively easily perform the bottleneck since the bottleneck operation can be extracted and the operation video data corresponding to the bottleneck operation can be reproduced and displayed. The actual situation of the work can be confirmed visually.
  • it is possible to support the user's drafting of a countermeasure against bottlenecks, and the usability of the user is improved. Since the cycle of work improvement by the user can be shortened, the production site (work site) can be efficiently improved and productivity can be improved.
  • the image of the cell 21 (and the periphery thereof) is photographed and stored for a long time. It is also possible to grasp the situation during absence of workers. Therefore, work improvement can be further supported.
  • the size of the storage for storing the work video data increases, the image of the cell 21 can be taken and stored for a long time regardless of the presence or absence of work, which can be useful for analysis work at a later date.
  • FIGS. 8 and 9 A second embodiment will be described with reference to FIGS. 8 and 9.
  • Each of the following embodiments including the present embodiment corresponds to a modification of the first embodiment, and therefore, differences from the first embodiment will be mainly described.
  • this embodiment not the apparent work time, but the time (actual work time) in which the work was actually possible is detected.
  • FIG. 8 is a flowchart showing a process of detecting the actual work time. This process is executed by, for example, the actual work time detection unit 18 shown in FIG.
  • the actual work time detection unit 18 may be provided in the work analysis unit 16.
  • the actual operation time detection unit 18 was able to actually perform the operation by subtracting the operation inoperable time that the operation could not be performed from the apparent operation time for each operation in each cell (S31) The time is calculated (S32 to S35).
  • the actual working time detection unit 18 determines, for example, whether or not the worker is present in the cell 21 (presence / absence) by analyzing the image data of the camera 24, and the worker is not present in the cell 21. The time is detected as an inoperable time (S32).
  • the actual work time detection unit 18 acquires the time when the worker used the worker terminal 27 and detects the terminal use time as the work inoperable time (S33). ).
  • the actual work time detection unit 18 calculates the actual work time by subtracting the inoperable time from the apparent work time (S34).
  • the actual work time detection unit 18 calculates the net inoperable time in consideration of the start time and the finish time of the inoperable time. For example, when the worker is using the worker terminal 27 at a place away from the cell 21, the absence time and the terminal use time are not simply summed up, but only the absence time is used as the inoperable time.
  • the actual work time detection unit 18 stores the actual work time calculated in step S34 in the work record management table 121A described in FIG. 9 (S35).
  • FIG. 9 is an example of the work result management table 121A according to the present embodiment.
  • the table 121A includes an actual work time 1216 and an actual work start time 1217, as compared with the table 121 described in FIG.
  • the actual work time 1216 stores the time when the worker was actually able to work.
  • the actual work start time 1217 stores the start time of the actual work time.
  • a plurality of values may be stored as the actual work start time 1217, for example, when the worker leaves the job during the work.
  • actual work time is used instead of “work time”.
  • the worker is suddenly called during work and leaves the cell 21, in the first embodiment, since the apparent work time is longer than the target work time, it is extracted as a bottleneck work. There is a possibility. However, as a result of the worker returning to the cell 21 and resuming the work, if the work is completed within the target work time, only a temporary delay of the work due to a sudden cause occurs.
  • temporarily delayed work may also be detected as a bottleneck work, but in the present embodiment, a substantial bottleneck work whose actual work time is longer than the target work time is extracted. be able to.
  • the present embodiment configured in this way also achieves the same effects as the first embodiment. Furthermore, in the present embodiment, it is possible to determine whether or not a bottleneck operation is performed based on the actual operation time, not the apparent operation time detected in the first embodiment. To improve reliability and ease of use.
  • the third embodiment will be described with reference to FIG.
  • the image quality of each camera 24 is controlled and stored.
  • FIG. 10 is a flowchart showing work video management processing according to the present embodiment.
  • the present process differs from the process described in FIG. 6 in that a new step S18 is provided between step S12 and step S13.
  • the work video management unit 15 sets the storage image quality (S18).
  • the image quality includes, for example, resolution and color.
  • the work video management unit 15 sets, for example, the storage image quality of each camera 24 in accordance with the work.
  • the stored image quality high with the camera 24 capable of photographing the place where the work is performed the best as the main camera, and set the stored image quality low as the other cameras 24 as sub cameras.
  • the storage image quality of the camera 24 which is highly likely to detect the movement of the worker by a predetermined amount or more may be set high, and the storage image quality of the other cameras 24 may be set low.
  • the storage quality of image data captured during work may be set high, and the storage quality of image data captured while work is not performed may be set low.
  • the present embodiment configured in this way also achieves the same effects as the first embodiment.
  • the size of the stored work video data can be reduced, and the storage cost can be reduced.
  • each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention.
  • the configurations described in the claims can be combined with combinations other than the combinations specified in the claims.

Abstract

An objective of the present invention is to provide a task refinement assistance system and method having ease of use by a user. Provided is a task refinement assistance system 1 for assisting with the refinement of a task process, said system comprising: a performance management unit 12 for managing performance data relating to each task included in a task process; a plan management unit 13 for managing plan data relating to each of the tasks; a task video management unit 15 for managing task video data photographing the situation of a task site 2 whereat each of the tasks is carried out by an operator; and a task analysis unit 16 for assessing, on the basis of the performance data and the plan data relating to the task, whether the task is a prescribed task to be refined, and if the task has been assessed as the prescribed task, extracting, from among the task video data, prescribed task video data relating to the task assessed as the prescribed task.

Description

作業改善支援システムおよび方法Work improvement support system and method
　本発明は、作業改善支援システムおよび方法に関する。 The present invention relates to a work improvement support system and method.
　制御盤、事務機器、自動車、航空機、産業機械、建設機械等々といった各種工場では、ライン方式やセル方式、ダイナミックセル方式等の生産方式で製品を生産する。一つの製品は、例えば、部品や素材の準備、板金、塗装、主要部品の組立、主要部品の本体への組み付け、検査などの複数の作業工程を経て生産される。生産現場では、事前に立案された生産計画にしたがって製品を生産するが、諸事情により、生産計画と生産実績とはしばしば乖離する。特にいわゆるボトルネック作業では、計画と実績との乖離が大きい。そこで、ボトルネック作業を抽出し、ボトルネック対策を提示するようにした技術が知られている（特許文献１）。 Products such as control panels, office equipment, automobiles, aircraft, industrial machines, construction machines, etc. are manufactured using a production method such as line method, cell method and dynamic cell method. One product is produced, for example, through a plurality of work processes such as preparation of parts and materials, sheet metal, painting, assembly of main parts, assembly of main parts to the main body, inspection and the like. At a production site, products are produced according to a pre-planned production plan, but due to various circumstances, production plan and production performance often deviate. Especially in so-called bottleneck work, there is a large gap between the plan and the actual results. Then, the technique which extracted the bottleneck operation | work and presented the countermeasure against a bottleneck is known (patent document 1).
特開２００５－１９００３１号公報JP, 2005-190031, A
　特許文献１は、「生産計画および仕掛り状況に応じてボトルネックとなる装置とその発生時期を推定し、各ボトルネック装置を発生時期および該当装置群の状態からボトルネック要因毎に分類し、分類結果に応じた事前対策を実行する」もので（特許文献１段落００１０、要約）、ボトルネックの発生した工程と作業者が作業する現場の状況を撮影した作業映像データとを対応づけるものではない。 Patent Document 1 “estimates devices that become bottlenecks according to production plans and work in progress and their occurrence times, and classifies each bottleneck device according to the occurrence timing and the state of the corresponding device group for each bottleneck factor, "Perform measures in advance according to the classification result" (Patent Document 1, paragraph 0010, abstract), in which the process where the bottleneck occurs and the work video data obtained by photographing the situation of the site where the operator works is associated Absent.
　従って、特許文献１に記載の従来技術では、例えば生産工程の管理者等のユーザは、作業現場の状況を映像で確認しながらボトルネックの発生原因や改善策を検討することができず、使い勝手が悪い。 Therefore, in the prior art described in Patent Document 1, for example, a user such as a manager of a production process can not examine the cause of the bottleneck or the improvement measures while confirming the situation of the work site with a video, which is convenient to use It is bad.
　本発明は、上記問題に鑑みてなされたもので、その目的は、ユーザの使い勝手のよい作業改善支援システムおよび方法を提供することにある。 The present invention has been made in view of the above problems, and an object thereof is to provide a user-friendly operation improvement support system and method.
　上記課題を解決すべく、本発明に従う作業改善支援システムは、作業工程の改善を支援する作業改善支援システムであって、作業工程に含まれる各作業に関する実績データを管理する実績管理部と、各作業に関する計画データを管理する計画管理部と、作業者により各作業が実施される作業現場の状況を撮影した作業映像データを管理する作業映像管理部と、作業に関する実績データおよび計画データに基づいて、作業が改善すべき所定の作業に該当するか判定し、作業が所定の作業に該当すると判定した場合は、作業映像データのうち所定の作業に該当すると判定された作業に関する所定の作業映像データを抽出する作業分析部と、を備える。 In order to solve the above problems, a work improvement support system according to the present invention is a work improvement support system that supports improvement of a work process, and a performance management unit that manages performance data regarding each work included in the work process, and Based on a plan management unit that manages plan data related to work, a work video management unit that manages work video data obtained by photographing the situation of a work site where each work is performed by a worker, and performance data and plan data related to work If it is determined that the work corresponds to a predetermined work to be improved and it is determined that the work corresponds to a predetermined work, predetermined work video data relating to the work determined to correspond to the predetermined work among the work video data And an operation analysis unit for extracting
　本発明によれば、改善すべき所定の作業に該当する作業を検出した場合に、その作業に関する作業映像データを抽出することができるため、ユーザは、その作業映像データに基づいて作業の改善点を検討することができる。 According to the present invention, when a task corresponding to a predetermined task to be improved is detected, task video data relating to the task can be extracted, so the user can improve the task based on the task video data. Can be considered.
本実施形態の全体概要を示す説明図である。It is an explanatory view showing the whole outline of this embodiment. 作業改善支援システムの機能構成図である。It is a functional block diagram of a work improvement support system. 作業改善支援システムを実現するコンピュータシステムの例である。It is an example of a computer system which realizes a work improvement support system. 作業実績を管理するテーブルの例である。It is an example of the table which manages work results. 作業手順を管理するテーブルの例である。It is an example of the table which manages work procedure. 作業映像管理処理を示すフローチャートである。It is a flow chart which shows work picture management processing. 作業改善支援処理を示すフローチャートである。It is a flow chart which shows work improvement support processing. 第２実施例に係り、実作業時間を検出する処理のフローチャートである。It is a flowchart of the process which concerns on 2nd Example and detects real working time. 作業実績を管理するテーブルの例である。It is an example of the table which manages work results. 第３実施例に係り、映像管理処理を示すフローチャートである。It is a flowchart which concerns on 3rd Example and which shows an image management process.
　以下、図面に基づいて、本発明の実施の形態を説明する。本実施形態に係る作業改善支援システム１では、後述のように、作業工程に含まれる複数の作業の中からボトルネックとなっている作業を抽出し、作業現場２の状況を撮影した作業映像データのうちボトルネック作業の様子を移す所定の作業映像データを抽出する。これにより、作業工程の改善を担当するユーザは、所定の作業映像データを見ながら、ボトルネック作業となった原因を推測したり、ボトルネック作業を解消するための対策を立案することができる。 Hereinafter, embodiments of the present invention will be described based on the drawings. The work improvement support system 1 according to the present embodiment extracts work that is a bottleneck from among a plurality of works included in the work process, as described later, and captures work video data of the situation of the work site 2 Among the above, predetermined work video data to which the situation of the bottleneck work is transferred is extracted. As a result, the user in charge of the improvement of the work process can estimate the cause of the bottleneck work while devising the countermeasure for solving the bottleneck work while looking at predetermined work video data.
　図１～図７を用いて第１実施例を説明する。図１は、作業改善支援システムの全体概要を示す説明図である。作業改善支援システム１は、改善すべき作業の状況を撮影した所定の作業映像データをユーザに提供することにより、改善策の立案を支援する。 The first embodiment will be described with reference to FIGS. FIG. 1 is an explanatory view showing an overall outline of a work improvement support system. The work improvement support system 1 supports the creation of improvement measures by providing the user with predetermined work video data obtained by capturing the situation of the work to be improved.
　作業改善支援システム１は、例えば、少なくとも一つの計算機を用いて構成することができる。作業改善支援システム１を実現するコンピュータシステムの一例は、図３で後述する。 The work improvement support system 1 can be configured, for example, using at least one computer. An example of a computer system for realizing the work improvement support system 1 will be described later with reference to FIG.
　作業改善支援システム１は、計算機資源としての演算装置、メモリ装置、補助記憶装置、入出力インターフェース回路、通信インターフェース回路（いずれも不図示）と所定のコンピュータプログラムとから、後述する各機能１１～１９を実現する。 The work improvement support system 1 includes functions 11 to 19 described later from an arithmetic unit as a computer resource, a memory unit, an auxiliary storage unit, an input / output interface circuit, a communication interface circuit (all not shown) and a predetermined computer program. To achieve.
　先に作業現場２について説明する。作業現場２は、少なくとも一つのセル２１を含んでいる。セル２１では、作業者Ｗが、作業指示端末２３に表示された作業手順にしたがって、製品２５を生産する。ここでは、セル生産方式を例に挙げて説明するが、これに限らず、ライン方式、ダイナミックセル方式に適用することもできる。また、本実施形態の作業現場２は、いわゆる多品種少量生産に向いているが、少品種大量生産や少品種少量生産にも適用可能である。 The work site 2 will be described first. The work site 2 includes at least one cell 21. In the cell 21, the worker W produces the product 25 in accordance with the work procedure displayed on the work instruction terminal 23. Here, although the cell production method is described as an example, the present invention is not limited to this, and can be applied to a line method and a dynamic cell method. Although the work site 2 of the present embodiment is suitable for so-called high-mix low-volume production, it is also applicable to low-mix high-volume production and low-mix low-volume production.
　セル２１には、作業者による作業の状況を監視するための複数のカメラ２４が設置されている。各カメラ２４の少なくとも一部のカメラ２４は、作業状況のみならず、セル２１の周囲の状況も監視することができる。カメラ２４の設置場所、設置角度、撮影画角等によって相違するが、作業者の作業中の手元や足下、作業者の全体像以外に、セル２１の周辺の状況（セル２１の周囲に配置された他のセルなど）も監視可能である。図１中では、５台のカメラ２４を例示するが、これに限らず、４台以下、あるいは６台以上のカメラをセル２１に対応づけて設置することができる。 The cell 21 is provided with a plurality of cameras 24 for monitoring the status of work by the worker. At least a part of the cameras 24 of each camera 24 can monitor not only the working situation but also the situation around the cell 21. Depending on the installation location of the camera 24, the installation angle, the shooting angle of view, etc., the situation around the cell 21 (arranged around the cell 21 other than the hand or foot of the worker's work and the entire image of the worker) Other cells) can also be monitored. Although five cameras 24 are illustrated in FIG. 1, the present invention is not limited to this, and four or less cameras or six or more cameras can be associated with the cell 21 and installed.
　セル２１またはセル２１の近傍には、ＲＦＩＤ（Radio Frequency IDentifier）タグ２６から情報を読み出すＲＦＩＤリーダ２２が設けられている。ここで、ＲＦＩＤタグ２６は、例えば、作業者Ｗが持つ作業タグ２６－１と、製品２５に設けられる製品タグ２６－２とに分けることができる。 In the vicinity of the cell 21 or the cell 21, an RFID reader 22 that reads information from an RFID (Radio Frequency Identifier) tag 26 is provided. Here, the RFID tag 26 can be divided into, for example, a work tag 26-1 possessed by the worker W and a product tag 26-2 provided on the product 25.
　作業タグ２６－１は、さらに、作業者Ｗの識別情報を格納する作業者タグと、作業者の配置先のセル（配置先工程）を示す作業指導票タグとに分けることができる（いずれも図示せず）。ＲＦＩＤリーダ２２は、作業タグ２６－１から、作業者を特定する識別情報と、セル（工程）を特定する識別情報とを読み出す。作業改善支援システム１は、ＲＦＩＤリーダ２２の読み取った情報に基づいて、どのセル２１にどの作業者が配置されているかを把握できる。また、製品タグ２６－２から製品２５に関する情報を取得することで、製品２５の現在位置や製造履歴等を把握することもできる。 The work tag 26-1 can be further divided into a worker tag for storing the identification information of the worker W and a work instruction slip tag indicating a cell (placement destination process) of the placement destination of the worker (both of them Not shown). The RFID reader 22 reads out, from the work tag 26-1, identification information for identifying a worker and identification information for identifying a cell (process). The work improvement support system 1 can grasp which worker 21 is disposed in which cell 21 based on the information read by the RFID reader 22. In addition, by acquiring information on the product 25 from the product tag 26-2, it is possible to grasp the current position of the product 25 and the manufacturing history.
　作業指示端末２３は、そのセル２１での作業手順を作業者へ教示するための画面を表示する。作業者は、一つの作業手順を完了すると、作業指示端末２３において、その作業手順の完了を示す完了ボタンまたは次の作業手順の表示を要求する次ボタンを操作する。作業者が各作業手順を終えるたびに、または次の作業手順の解説を呼び出すたびに、「作業者からの操作」としてボタンを操作する。作業改善支援システム１は、作業指示端末２３への操作を監視することにより、各セルでの作業手順の進捗状況をリアルタイムで把握することができる。 The work instruction terminal 23 displays a screen for teaching the work procedure in the cell 21 to the worker. When the worker completes one work procedure, the worker operates a work completion button indicating the completion of the work procedure or a next button requesting the display of the next work procedure on the work instruction terminal 23. Every time the worker finishes each work procedure or calls the explanation of the next work procedure, the button is operated as "operation from the worker". The work improvement support system 1 can grasp the progress of the work procedure in each cell in real time by monitoring the operation to the work instruction terminal 23.
　作業者は、作業者端末２７を持つこともできる。作業者端末２７は、例えば、会社の支給する携帯電話（いわゆるスマートフォンを含む）や携帯情報端末である。作業者端末２７の使用状況は、管理されている。 The worker can also have a worker terminal 27. The worker terminal 27 is, for example, a mobile phone (including a so-called smart phone) or a portable information terminal provided by a company. The use status of the worker terminal 27 is managed.
　作業改善支援システム１の構成を説明する。作業改善支援システム１は、例えば、作業状況監視部１１と生産実績管理部１２と、生産計画管理部１３と、作業者管理部１４と、作業映像管理部１５と、作業分析部１６と、画面表示部１７とを備える。さらに、後述の実施例に示すように、作業改善支援システム１は、実作業時間検出部１８と、作業者端末２７を管理する作業者端末管理部１９とを備えることもできる。 The configuration of the work improvement support system 1 will be described. The work improvement support system 1 includes, for example, a work status monitoring unit 11, a production performance management unit 12, a production plan management unit 13, a worker management unit 14, a work video management unit 15, a work analysis unit 16, and a screen. And a display unit 17. Further, as shown in an embodiment described later, the work improvement support system 1 can also include an actual work time detection unit 18 and a worker terminal management unit 19 that manages the worker terminal 27.
　なお、これら機能１１～１９の全ての実体が作業改善支援システム１内に設けられている必要はない。例えば、作業状況監視部１１、生産実績管理部１２、生産計画管理部１３、作業者管理部１４、作業者端末管理部１９等は、作業改善支援システム１の外部に設け、それら外部機能１１～１４，１９等から必要な情報のみを作業分析部１６へ送信する構成としてもよい。 It is not necessary that all the entities of these functions 11 to 19 be provided in the work improvement support system 1. For example, the work status monitoring unit 11, the production results management unit 12, the production plan management unit 13, the worker management unit 14, the worker terminal management unit 19 and the like are provided outside the work improvement support system 1, and the external functions 11 to The configuration may be such that only the necessary information is transmitted to the work analysis unit 16 from 14, 19 and the like.
　作業状況監視部１１は、各工程のＲＦＩＤリーダ２２がＲＦＩＤタグ２６から読み取った識別情報と、作業指示端末２３への作業者による操作とに基づいて、各セル２１での作業の進捗状況を監視し、生産実績管理部１２へ送信する。 The work status monitoring unit 11 monitors the progress of the work in each cell 21 based on the identification information read from the RFID tag 26 by the RFID reader 22 of each process and the operation by the worker to the work instruction terminal 23. And send it to the production results management unit 12.
　「実績管理部」の一例としての生産実績管理部１２は、作業状況監視部１１からのデータに基づいて、セル（工程）毎の生産実績を管理する。 The production performance management unit 12 as an example of the “performance management unit” manages the production performance for each cell (process) based on the data from the work status monitoring unit 11.
　「計画管理部」の一例としての生産計画管理部１３は、作業現場２の生産計画を管理する。生産計画管理部１３は、生産現場全体の生産計画と、セル別の生産計画とをそれぞれ管理する。 The production plan management unit 13 as an example of the “plan management unit” manages the production plan of the work site 2. The production plan management unit 13 manages a production plan for the entire production site and a production plan for each cell.
　作業者管理部１４は、例えば、各作業者の作業員番号、氏名、勤務形態、勤務時間、担当した工程の履歴、各セルで必要とされるスキルの有無などを管理する。作業タグ２６－１には、作業者管理部１４で管理される情報が書き込まれる。 The worker management unit 14 manages, for example, the worker number of each worker, the name, the type of work, the working hours, the history of the assigned process, the presence or absence of the skills required in each cell, and the like. Information managed by the worker management unit 14 is written in the work tag 26-1.
　作業映像管理部１５は、作業現場２の各カメラ２４で撮影した作業映像データを、その撮影時刻に対応づけて作業映像記憶部１５１に記憶し、管理する。作業映像管理部１５は、２４時間３６５日、あるいは全ての稼働日の２４時間といった、作業時間以外の時間に関する映像データも作業映像データの一部として保存し、管理する。すなわち、作業映像管理部１５は、長時間・長期間の映像データを管理するもので、作業者が作業している時間だけでなく、作業に直接関係しない時間帯についても映像データを管理する。後述の実施例のように、作業映像管理部１５は、各カメラ２４の一部または全部について画質を制御する画質制御部１５２を備えることもできる。 The work video management unit 15 stores work video data shot by each camera 24 of the work site 2 in the work video storage unit 151 in association with the shooting time, and manages it. The work video management unit 15 also stores and manages video data related to times other than work time, such as 24 hours a day, 365 days a year, or 24 hours of all operation days, as a part of work video data. That is, the work video management unit 15 manages video data for a long time and a long time, and manages video data not only for the time when the worker is working but also for the time zone not directly related to the work. As in the embodiment described later, the work video management unit 15 can also include an image quality control unit 152 that controls the image quality of a part or all of the cameras 24.
　作業分析部１６は、生産実績管理部１２で管理する各セルの生産実績データと生産計画管理部１３で管理する各セル別生産計画とに基づいて、各セルにおいて、「改善すべき所定の作業」としてのボトルネック作業が発生しているか否か判定する。すなわち、作業分析部１６は、各作業についての実績値（作業時間）と目標値（目標作業時間）とから、ボトルネック作業であると推定される作業をボトルネック作業として検出する。 The work analysis unit 16 performs “a predetermined work to be improved in each cell based on the production result data of each cell managed by the production result management unit 12 and the production plan for each cell managed by the production plan management unit 13. It is determined whether or not a bottleneck operation as "has occurred." That is, the work analysis unit 16 detects a work estimated to be a bottleneck work from the actual value (work time) and the target value (target work time) for each work as a bottleneck work.
　作業分析部１６は、検出したボトルネック作業に対応する作業映像データを作業映像管理部１５から読み出して、画面表示部１７に表示させる。作業分析部１６は、ボトルネック作業の作業映像データだけでなく、そのボトルネック作業に関する所定の情報も画面表示部１７へ表示させることができる。ボトルネック作業に関する所定の情報としては、例えば、そのボトルネック作業の作業手順を示す情報、そのボトルネック作業を担当した作業者に関する情報、そのボトルネック作業に関わる製品２５およびその部品に関する情報などがある。 The work analysis unit 16 reads work video data corresponding to the detected bottleneck work from the work video management unit 15 and causes the screen display unit 17 to display the read data. The work analysis unit 16 can display not only the work video data of the bottleneck work but also predetermined information on the bottleneck work on the screen display unit 17. As predetermined information on the bottleneck work, for example, information indicating the work procedure of the bottleneck work, information on the worker in charge of the bottleneck work, information on the product 25 related to the bottleneck work and its parts, etc. is there.
　作業工程の改善を担当する生産管理責任者などのユーザは、画面表示部１７に表示されたボトルネック作業についての作業映像データを確認することで、ボトルネックの原因を推定し、その対策を立案することができる。立案された対策は、検証後に、作業手順指示情報として更新される。作業者は、対策済の作業手順指示情報（どのようにして作業を進めるかを文字や画像などで示す情報）を参照して、作業を行うことができる。 A user such as a production manager in charge of improvement of the work process confirms the work video data of the bottleneck work displayed on the screen display unit 17 to estimate the cause of the bottleneck and formulate a countermeasure can do. The prepared measures are updated as work procedure instruction information after verification. The worker can perform the work with reference to the work procedure instruction information (the information indicating how to proceed the work with characters, an image, and the like) for which the countermeasure has been taken.
　実作業時間検出部１８は、作業者Ｗによる見かけ上の作業時間の中から、実際に作業が可能であった時間（実作業時間）を検出して、作業分析部１６へ通知する。後述の実施例で示すように、実作業時間検出部１８は、例えば、作業映像管理部１５で管理する作業映像データと、作業者端末管理部１９で管理する作業者端末２７の使用履歴とに基づいて、実作業時間を算出することができる。 The actual work time detection unit 18 detects, from the apparent work time by the worker W, the time when the work was actually possible (the actual work time), and notifies the work analysis unit 16 of the detected time. As shown in the embodiment described later, for example, the actual work time detection unit 18 uses the work video data managed by the work video management unit 15 and the usage history of the worker terminal 27 managed by the worker terminal management unit 19. Based on the actual work time can be calculated.
　図２は、作業改善支援システム１の機能構成図である。作業状況監視部１１は、例えば、ＲＦＩＤリーダ２２と、作業指示端末２３と、ＲＦＩＤリーダ２２で読み取ったＲＦＩＤデータを管理するＲＦＩＤ管理システム（不図示）とを備える。 FIG. 2 is a functional block diagram of the work improvement support system 1. The work status monitoring unit 11 includes, for example, an RFID reader 22, a work instruction terminal 23, and an RFID management system (not shown) that manages RFID data read by the RFID reader 22.
　生産実績管理部１２は、ＲＦＩＤデータおよび作業指示端末２３への操作内容から、作業現場の進捗状況を示すデータを読み出して、生産実績を把握する。 The production record management unit 12 reads data indicating the progress status of the work site from the RFID data and the contents of the operation to the work instruction terminal 23, and grasps the production record.
　データ収集部１０１は、定期的にまたは不定期に生産実績管理部１２から各セル２１での各作業についての実績データを取得すると共に、生産計画管理部１３から工程別生産計画（セル別生産計画）を取得する。データ収集部１０１は、定期的に工程別生産計画を取得する必要はなく、生産計画が変更された場合に、生産計画管理部１３から工程別生産計画を取得すればよい。データ収集部１０１は、生産実績管理部１２から取得した各セル２１の実績データと生産計画管理部１３から取得した工程別生産計画とを、データプール１０２に格納する。実績データには、各セルでの各作業手順に要した作業時間のデータも含まれている。 The data collection unit 101 regularly or irregularly acquires actual data about each work in each cell 21 from the production results management unit 12 and, from the production plan management unit 13, a production plan by process (production plan by cell) Get). The data collection unit 101 does not have to periodically acquire the process-based production plan, and may obtain the process-based production plan from the production plan management unit 13 when the production plan is changed. The data collection unit 101 stores, in the data pool 102, the performance data of each cell 21 acquired from the production performance management unit 12 and the process-specific production plan acquired from the production plan management unit 13. The actual data also includes data of work time required for each work procedure in each cell.
　作業分析部１６は、データプール１０２から工程別生産計画と実績データとを読みだして、各セル２１の作業状態を解析し、ボトルネック作業を抽出して、画面表示部１７に表示する。さらに作業分析部１６は、作業映像管理部１５に指示を与えることにより、ボトルネック作業に対応する作業映像データを画面表示部１７に表示させる。 The work analysis unit 16 reads the process plan and actual data from the data pool 102, analyzes the work state of each cell 21, extracts bottleneck work, and displays it on the screen display unit 17. Further, the work analysis unit 16 causes the screen display unit 17 to display work video data corresponding to the bottleneck work by giving an instruction to the work video management unit 15.
　作業映像管理部１５で管理する作業映像データと、実績データとは、時刻管理部１０３で管理する同一時刻により管理される。時刻管理部１０３は、作業改善支援システム１の外部に設置される時刻サーバから時刻情報を取得して用いてもよいし、時刻管理部１０３内のタイマを用いてもよい。 The work video data managed by the work video management unit 15 and the performance data are managed by the same time managed by the time management unit 103. The time management unit 103 may acquire and use time information from a time server installed outside the work improvement support system 1 or may use a timer in the time management unit 103.
　本実施例では、ボトルネック作業の開始時刻で作業映像データ内の時刻情報を検索することにより、ボトルネック作業に対応する作業映像データを作業映像管理部１５から読み出すことができる。なお、時刻で管理する方式に代えて、各作業が完了するたびに作業映像データ内に作業の区切りを示すマーカ情報を設定してもよい。 In this embodiment, by searching the time information in the work video data at the start time of the bottleneck work, the work video data corresponding to the bottleneck work can be read out from the work video management unit 15. Note that, instead of the method of managing by time, marker information indicating a break of work may be set in work video data each time each work is completed.
　図３は、作業改善支援システム１を実現するコンピュータシステムの一例である。コンピュータシステム１０００は、例えば、映像管理サーバ１００２、データベースサーバ１００３、アプリケーションサーバ１００４、パーソナルコンピュータ１００５を通信ネットワークＣＮで接続することにより構成される。 FIG. 3 is an example of a computer system that implements the work improvement support system 1. The computer system 1000 is configured, for example, by connecting a video management server 1002, a database server 1003, an application server 1004, and a personal computer 1005 by a communication network CN.
　映像管理サーバ１００２は、作業映像管理部１５を実現するコンピュータである。映像管理サーバ１００２は、ハブ１００１を介して、各セル２１の各カメラ２４に接続されており、各カメラ２４から取得した作業映像データをハードディスクドライブやテープドライブ、半導体メモリ等に記憶する。なお、ハブ１００１は、各カメラ２４へ給電する機能を備えることもできる。 The video management server 1002 is a computer that implements the work video management unit 15. The video management server 1002 is connected to each camera 24 of each cell 21 via the hub 1001, and stores work video data acquired from each camera 24 in a hard disk drive, a tape drive, a semiconductor memory or the like. The hub 1001 can also have a function of supplying power to each camera 24.
　データベースサーバ１００３は、例えば、データプール１０２等を実現するコンピュータである。アプリケーションサーバ１００４は、例えば、生産実績管理部１２や生産計画管理部１３を実現するためのコンピュータである。パーソナルコンピュータ１００５は、例えば、作業分析部１６や画面表示部１７を実現するコンピュータである。 The database server 1003 is, for example, a computer that implements the data pool 102 and the like. The application server 1004 is, for example, a computer for realizing the production record management unit 12 and the production plan management unit 13. The personal computer 1005 is, for example, a computer that implements the work analysis unit 16 and the screen display unit 17.
　図３は、本実施例に適用可能なコンピュータシステムの一例に過ぎない。図３に示す構成以外の構成を有するコンピュータシステムを本実施例の作業改善支援システム１に用いることもできる。 FIG. 3 is only an example of a computer system applicable to the present embodiment. A computer system having a configuration other than that shown in FIG. 3 can also be used for the work improvement support system 1 of this embodiment.
　例えば、作業現場２と作業改善支援システム１とが物理的に遠く離れているような場合は、映像管理サーバ１００２で管理する作業映像データのコピーを、パーソナルコンピュータ１００５と物理的に近い場所に設けてもよい。これにより、パーソナルコンピュータ１００５上で動作する作業分析部１６は、作業映像データのコピーを速やかに取得して、画面表示部１７に表示させることができる。 For example, when the work site 2 and the work improvement support system 1 are physically far apart, a copy of work video data managed by the video management server 1002 is provided in a place physically close to the personal computer 1005. May be As a result, the work analysis unit 16 operating on the personal computer 1005 can quickly obtain a copy of the work video data and cause the screen display unit 17 to display the copy.
　図４は、作業実績管理テーブル１２１の例を示す。作業実績管理テーブル１２１は、各作業の内容を管理する。作業実績管理テーブル１２１は、セル２１毎に作成することができるが、図４では一つのセルについて説明する。作業実績管理テーブル１２１は、生産実績管理部１２で管理することができる。 FIG. 4 shows an example of the work record management table 121. The work record management table 121 manages the contents of each work. The work record management table 121 can be created for each cell 21, but FIG. 4 describes one cell. The work record management table 121 can be managed by the production record management unit 12.
　作業実績管理テーブル１２１は、例えば、製品名１２１１、製造番号１２１２、作業手順１２１３、作業時間１２１４、作業開始時刻１２１５を対応づけて管理する。作業実績管理テーブル１２１は、図４に示す以外の項目（例えば製造日時、作業者識別情報など）を含んでもよい。 The work record management table 121 manages, for example, the product name 1211, the serial number 1212, the work procedure 1213, the work time 1214, and the work start time 1215 in association with one another. The work record management table 121 may include items other than those shown in FIG. 4 (for example, manufacturing date and time, worker identification information, etc.).
　製品名１２１１は、セル２１で製造された製品２５の名称である。製造番号１２１２は、製品を識別する製造番号である。 The product name 1211 is the name of the product 25 manufactured in the cell 21. The serial number 1212 is a serial number identifying a product.
　作業手順１２１３は、セル２１で実行された作業手順を識別する情報、例えば作業名である。作業時間１２１４は、各作業手順に要した時間である。上述のように、作業者は、作業指示端末２３に表示された作業指示情報に基づいて作業を実施し、作業の開始前後に端末２３を操作する。これにより、作業状況監視部１１は、各セル２１の各作業者が各作業に要した時間を把握することができる。 The work procedure 1213 is information identifying the work procedure performed in the cell 21, for example, a work name. The work time 1214 is the time required for each work procedure. As described above, the worker carries out the work based on the work instruction information displayed on the work instruction terminal 23, and operates the terminal 23 before and after the start of the work. Thus, the work status monitoring unit 11 can grasp the time required for each worker of each cell 21 for each work.
　作業開始時刻１２１５は、各作業の開始時刻である。作業指示端末２３への操作から作業の区切りを検出すると、作業開始時刻が特定されて作業実績管理テーブル１２１の項目１２１５へ記憶される。 The work start time 1215 is the start time of each work. When the break of work is detected from the operation to the work instruction terminal 23, the work start time is specified and stored in the item 1215 of the work record management table 121.
　図５は、作業手順管理テーブル１３１の例である。作業手順管理テーブル１３１は、各作業の目標値や作業指示情報の格納先を管理する。作業手順管理テーブル１３１は、製品２５ごとに設けることができる。図５では、複数の製品２５についての作業手順を一つのテーブル１３１で管理する場合を例に挙げる。作業手順管理テーブル１３１は、生産計画管理部１３で管理することができる。 FIG. 5 is an example of the work procedure management table 131. The work procedure management table 131 manages storage locations of target values of each work and work instruction information. The work procedure management table 131 can be provided for each product 25. In FIG. 5, the case where the work procedures for a plurality of products 25 are managed by one table 131 is taken as an example. The work procedure management table 131 can be managed by the production plan management unit 13.
　作業手順管理テーブル１３１は、例えば、製品名１３１１と、作業手順１３１２と、目標作業時間１３１３と、作業指示情報の格納先１３１４とを対応づけて管理する。製品名１３１１は、製品２５の名称である。作業手順１３１２は、その製品を生産するために実行される各作業手順（各作業）を識別する情報である。目標作業時間１３１３は、各作業手順（各作業）の終了に要する目標時間である。 The work procedure management table 131, for example, manages a product name 1311, a work procedure 1312, a target work time 1313, and a storage destination 1314 of work instruction information in association with each other. The product name 1311 is the name of the product 25. The work procedure 1312 is information for identifying each work procedure (each work) executed to produce the product. The target work time 1313 is a target time required to finish each work procedure (each work).
　作業指示情報の格納先１３１４は、製品２５の製造に必要な作業手順を文字や画像あるいは音声で作業者に指示するための情報を格納しているアドレスである。作業指示情報は、製品２５の製造に要する一連の作業の全体について一つ用意してもよいし、個別の作業手順ごとにそれぞれ作業指示情報を用意してもよい。図５では、一連の作業の全体について作業指示情報を用意する場合を示す。この場合、作業指示情報は、各作業手順の開始または終了を端末２３へ入力するための操作ボタンあるいは操作の指示を含む。 The storage destination 1314 of the work instruction information is an address storing information for instructing the operator by text, image or voice of the work procedure necessary for manufacturing the product 25. One piece of work instruction information may be prepared for the entire series of operations required to manufacture the product 25, or the work instruction information may be prepared for each individual work procedure. FIG. 5 shows the case where work instruction information is prepared for the entire series of work. In this case, the work instruction information includes an operation button or an operation instruction for inputting the start or end of each work procedure to the terminal 23.
　図６は、作業映像管理処理を示すフローチャートである。本処理は、作業映像管理部１５により実行される。図６の例では、作業現場２と作業改善支援システム１とが物理的に遠く離れており、作業映像データの読み出し遅延を低減するために、作業映像データのコピーを作業改善支援システム１の近くに設ける場合を説明する。 FIG. 6 is a flowchart showing work video management processing. This process is executed by the work video management unit 15. In the example of FIG. 6, the work site 2 and the work improvement support system 1 are physically far apart, and copying of work video data is near the work improvement support system 1 in order to reduce the delay in reading work video data. The case where it provides in is demonstrated.
　作業映像管理部１５は、作業分析部１６からの録画開始指示により録画を開始する（Ｓ１１：ＹＥＳ）。基本的に、本実施例では、作業が行われている間はもちろんのこと、作業が行われていない間（作業開始前の時間、作業終了後の時間）も作業現場２のセル２１の状況（およびその周辺の状況）を撮影して保存する。 The work video management unit 15 starts recording in response to the recording start instruction from the work analysis unit 16 (S11: YES). Basically, in the present embodiment, the state of the cell 21 of the work site 2 not only while the work is being performed but also while the work is not being performed (time before the start of the work, time after the end of the work) Shoot and save (and the situation around it).
　作業映像管理部１５は、各セル２１の各カメラ２４による撮影を開始し（Ｓ１２）、撮影した画像データを作業映像記憶部１５１へ保存する（Ｓ１３）。 The work video management unit 15 starts shooting with each camera 24 of each cell 21 (S12), and stores the shot image data in the work video storage unit 151 (S13).
　作業映像管理部１５は、転送開始タイミングが到来したか判定し（Ｓ１４）、転送開始タイミングが到来したと判定すると（Ｓ１４：ＹＥＳ）、作業映像データ（図中、画像データと表示）を所定の転送先へ転送する（Ｓ１５）。転送開始タイミングとしては、例えば、コンピュータシステム１０００の負荷の少ない深夜の時間帯を選択すればよい。 The work video management unit 15 determines whether the transfer start timing has arrived (S14), and if it is determined that the transfer start timing has come (S14: YES), the work video data (image data and display in the figure) is specified. Transfer to the transfer destination (S15). As the transfer start timing, for example, a late-night time zone with a small load on the computer system 1000 may be selected.
　作業映像管理部１５は、転送が終了すると（Ｓ１６：ＹＥＳ）、作業状況の録画を停止するか判断する（Ｓ１７）。本実施例では、作業の有無を問わずに録画を継続するため、ステップＳ１２へ戻る。一方、例えば、カメラ２４のメンテナンス作業等に備えて、録画を停止することもできる。 When the transfer ends (S16: YES), the work video management unit 15 determines whether to stop the recording of the work status (S17). In the present embodiment, in order to continue recording regardless of the presence or absence of work, the process returns to step S12. On the other hand, for example, in preparation for maintenance work of the camera 24, recording can also be stopped.
　なお、作業映像管理部１５が作業改善支援システム１の近くに作業映像データのコピーを作成しない場合、ステップＳ１４～Ｓ１６を省略すればよい。 When the work video management unit 15 does not create a copy of work video data near the work improvement support system 1, steps S14 to S16 may be omitted.
　図７は、作業改善支援処理を示すフローチャートである。本処理は、作業分析部１６により実行される。 FIG. 7 is a flowchart showing work improvement support processing. This process is performed by the work analysis unit 16.
　作業分析部１６は、生産計画管理部１３および生産実績管理部１２から、作業毎に、目標作業時間および作業時間を取得する（Ｓ２１）。 The work analysis unit 16 acquires the target work time and the work time for each work from the production plan management unit 13 and the production results management unit 12 (S21).
　作業分析部１６は、目標作業時間と作業時間との乖離の度合から、ボトルネック作業と推定される作業を抽出し、そのボトルネック作業を特定する情報（例えば、セル番号や作業名等）画面表示部１７へ表示する（Ｓ２２）。 The work analysis unit 16 extracts a work estimated to be a bottleneck work from the degree of deviation between the target work time and the work time, and an information screen (for example, a cell number, a work name, etc.) specifying the bottleneck work. Display on the display unit 17 (S22).
　例えば、作業工程の改善責任者であるユーザは、画面表示部１７に表示されたボトルネック作業の中から、一つまたは複数を選択することができる（Ｓ２３：ＹＥＳ）。作業分析部１６は、ユーザにより選択された作業（ボトルネック作業）に対応する作業映像データを作業映像管理部１５から読み出し（Ｓ２４）、読み出した作業映像データを再生して画面表示部１７に表示させる（Ｓ２５）。 For example, the user who is the person in charge of improvement of the work process can select one or more from the bottleneck work displayed on the screen display unit 17 (S23: YES). The work analysis unit 16 reads work video data corresponding to the work (bottleneck work) selected by the user from the work video management unit 15 (S24), reproduces the read work video data, and displays it on the screen display unit 17. (S25).
　図４で述べた通り、各作業の区切りは時刻情報（図４の作業開始時刻１２１５）で管理されているため、作業開始時刻と作業映像データ内の時刻情報とを照合することで、ユーザの選択した作業に関する作業映像データを特定することができる。 As described in FIG. 4, since the division of each work is managed by the time information (the work start time 1215 in FIG. 4), the user can check the work start time and the time information in the work video data. Work video data relating to the selected work can be identified.
　ユーザは、画面表示部１７に表示された作業映像データを見ながら、その作業がボトルネックとなった原因を考察したり、ボトルネックを解消するための対策を検討することができる。 The user can, while looking at the work video data displayed on the screen display unit 17, consider the cause of the work becoming a bottleneck or can consider measures for eliminating the bottleneck.
　そして、ユーザが立案した改善策（ボトルネック対策）は、作業指示情報の修正版として生産計画管理部１３に登録される（Ｓ２６）。 Then, the improvement plan (bottleneck countermeasure) prepared by the user is registered in the production plan management unit 13 as a modified version of the work instruction information (S26).
　このように構成される本実施例によれば、ボトルネック作業を抽出し、そのボトルネック作業に対応する作業映像データを再生して表示することができるため、ユーザは、比較的容易にボトルネック作業の実態を目視で確認することができる。これにより、本実施例によれば、ユーザのボトルネック対策の立案を支援することができ、ユーザの使い勝手が向上する。ユーザによる作業改善のサイクルを短縮することができるため、効率的に生産現場（作業現場）を改良することができ、生産性を高めることができる。 According to the present embodiment configured as described above, the user can relatively easily perform the bottleneck since the bottleneck operation can be extracted and the operation video data corresponding to the bottleneck operation can be reproduced and displayed. The actual situation of the work can be confirmed visually. Thus, according to the present embodiment, it is possible to support the user's drafting of a countermeasure against bottlenecks, and the usability of the user is improved. Since the cycle of work improvement by the user can be shortened, the production site (work site) can be efficiently improved and productivity can be improved.
　さらに、本実施例では、作業の有無にかかわらず、セル２１（およびその周辺）の画像を長時間にわたって撮影し保存するため、例えば、第三者や小動物の侵入や器具や棚の位置変化など、作業員が不在の間の状況も把握可能である。したがって、作業改善をより一層支援することができる。 Furthermore, in the present embodiment, regardless of the presence or absence of work, the image of the cell 21 (and the periphery thereof) is photographed and stored for a long time. It is also possible to grasp the situation during absence of workers. Therefore, work improvement can be further supported.
　さらに、作業映像データを保存するストレージのサイズは大きくなるが、作業の有無にかかわらず、セル２１の画像を撮影して長期間保存すれば、後日の解析作業に役立たせることができる。 Furthermore, although the size of the storage for storing the work video data increases, the image of the cell 21 can be taken and stored for a long time regardless of the presence or absence of work, which can be useful for analysis work at a later date.
　図８，図９を用いて第２実施例を説明する。本実施例を含む以下の各実施例は、第１実施例の変形例に相当するため、第１実施例との差異を中心に述べる。本実施例では、見かけの作業時間ではなく、実際に作業が可能であった時間（実作業時間）を検出する。 A second embodiment will be described with reference to FIGS. 8 and 9. Each of the following embodiments including the present embodiment corresponds to a modification of the first embodiment, and therefore, differences from the first embodiment will be mainly described. In this embodiment, not the apparent work time, but the time (actual work time) in which the work was actually possible is detected.
　図８は、実作業時間を検出する処理を示すフローチャートである。本処理は、例えば、図１に示す実作業時間検出部１８により実行される。実作業時間検出部１８を作業分析部１６内に設けてもよい。 FIG. 8 is a flowchart showing a process of detecting the actual work time. This process is executed by, for example, the actual work time detection unit 18 shown in FIG. The actual work time detection unit 18 may be provided in the work analysis unit 16.
　実作業時間検出部１８は、各セルでの作業ごとに（Ｓ３１）、見かけ上の作業時間から、作業を行うことのできなかった作業不能時間を差し引くことで、実際に作業が可能であった時間を算出する（Ｓ３２～Ｓ３５）。 The actual operation time detection unit 18 was able to actually perform the operation by subtracting the operation inoperable time that the operation could not be performed from the apparent operation time for each operation in each cell (S31) The time is calculated (S32 to S35).
　実作業時間検出部１８は、例えば、カメラ２４の画像データを解析することで、作業者がセル２１に存在したか否か（在／不在）を判定し、作業者がセル２１に居なかった時間を作業不能時間として検出する（Ｓ３２）。 The actual working time detection unit 18 determines, for example, whether or not the worker is present in the cell 21 (presence / absence) by analyzing the image data of the camera 24, and the worker is not present in the cell 21. The time is detected as an inoperable time (S32).
　実作業時間検出部１８は、作業者端末管理部１９で管理する履歴に基づいて、作業者が作業者端末２７を使用した時間を取得し、その端末使用時間を作業不能時間として検出する（Ｓ３３）。 Based on the history managed by the worker terminal management unit 19, the actual work time detection unit 18 acquires the time when the worker used the worker terminal 27 and detects the terminal use time as the work inoperable time (S33). ).
　実作業時間検出部１８は、見かけ上の作業時間から作業不能時間を差し引くことにより、実作業時間を算出する（Ｓ３４）。ここで、実作業時間検出部１８は、作業不能時間の開始時刻と終了時刻を考慮して、正味の作業不能時間を算出する。例えば、作業者がセル２１から離れた場所で作業者端末２７を使用していた場合、不在時間と端末使用時間とを単純に合計するのではなく、不在時間のみを作業不能時間として使用する。 The actual work time detection unit 18 calculates the actual work time by subtracting the inoperable time from the apparent work time (S34). Here, the actual work time detection unit 18 calculates the net inoperable time in consideration of the start time and the finish time of the inoperable time. For example, when the worker is using the worker terminal 27 at a place away from the cell 21, the absence time and the terminal use time are not simply summed up, but only the absence time is used as the inoperable time.
　実作業時間検出部１８は、ステップＳ３４で算出した実作業時間を、図９で述べる作業実績管理テーブル１２１Ａへ記憶する（Ｓ３５）。 The actual work time detection unit 18 stores the actual work time calculated in step S34 in the work record management table 121A described in FIG. 9 (S35).
　図９は、本実施例に係る作業実績管理テーブル１２１Ａの例である。このテーブル１２１Ａは、図４で述べたテーブル１２１に比べて、実作業時間１２１６および実作業開始時刻１２１７を備えている。 FIG. 9 is an example of the work result management table 121A according to the present embodiment. The table 121A includes an actual work time 1216 and an actual work start time 1217, as compared with the table 121 described in FIG.
　実作業時間１２１６には、作業者が実際に作業可能であった時間が記憶される。実作業開始時刻１２１７は、実作業時間の開始時刻が記憶される。作業者が作業の途中で退席した場合等のために、実作業開始時刻１２１７には複数の値が記憶されることがある。 The actual work time 1216 stores the time when the worker was actually able to work. The actual work start time 1217 stores the start time of the actual work time. A plurality of values may be stored as the actual work start time 1217, for example, when the worker leaves the job during the work.
　本実施例では、図７で述べた作業改善支援処理において、「作業時間」に代えて「実作業時間」を用いる。例えば、作業者が作業中に急に呼び出されたりしてセル２１から離れた場合に、第１実施例では、見かけの作業時間が目標作業時間よりも長くなるため、ボトルネック作業であるとして抽出される可能性がある。しかし、作業者がセル２１に戻って作業を再開した結果、目標作業時間内に作業が完了した場合、突発的な理由による一時的な作業の遅れが生じたに過ぎない。第１実施例では、一時的に遅れた作業もボトルネック作業として検出される可能性があるが、本実施例では、実作業時間が目標作業時間よりも長い実質的なボトルネック作業を抽出することができる。 In the present embodiment, in the work improvement support processing described in FIG. 7, “actual work time” is used instead of “work time”. For example, when the worker is suddenly called during work and leaves the cell 21, in the first embodiment, since the apparent work time is longer than the target work time, it is extracted as a bottleneck work. There is a possibility. However, as a result of the worker returning to the cell 21 and resuming the work, if the work is completed within the target work time, only a temporary delay of the work due to a sudden cause occurs. In the first embodiment, temporarily delayed work may also be detected as a bottleneck work, but in the present embodiment, a substantial bottleneck work whose actual work time is longer than the target work time is extracted. be able to.
　このように構成される本実施例も第１実施例と同様の作用効果を奏する。さらに本実施例では、第１実施例で検出した見かけ上の作業時間ではなく、実作業時間に基づいてボトルネック作業であるか否かを判定することができるため、作業状況をより正確に分析することができ、信頼性および使い勝手が向上する。 The present embodiment configured in this way also achieves the same effects as the first embodiment. Furthermore, in the present embodiment, it is possible to determine whether or not a bottleneck operation is performed based on the actual operation time, not the apparent operation time detected in the first embodiment. To improve reliability and ease of use.
　図１０を用いて第３実施例を説明する。本実施例では、各カメラ２４の画質を制御して保存する。 The third embodiment will be described with reference to FIG. In the present embodiment, the image quality of each camera 24 is controlled and stored.
　図１０は、本実施例による作業映像管理処理を示すフローチャートである。本処理は、図６で述べた処理に比べて、ステップＳ１２とステップＳ１３の間に、新規なステップＳ１８を備える点で異なる。 FIG. 10 is a flowchart showing work video management processing according to the present embodiment. The present process differs from the process described in FIG. 6 in that a new step S18 is provided between step S12 and step S13.
　作業映像管理部１５は、各カメラ２４で撮影した画像データを保存するに際して、その保存画質を設定する（Ｓ１８）。画質には、例えば、解像度や色彩がある。作業映像管理部１５は、例えば、作業に応じて、各カメラ２４の保存画質を設定する。 When the image data shot by each camera 24 is stored, the work video management unit 15 sets the storage image quality (S18). The image quality includes, for example, resolution and color. The work video management unit 15 sets, for example, the storage image quality of each camera 24 in accordance with the work.
　例えば、作業の行われる場所を最もよく撮影可能なカメラ２４をメインカメラとして保存画質を高く設定し、その他のカメラ２４をサブカメラとして保存画質を低く設定することができる。 For example, it is possible to set the stored image quality high with the camera 24 capable of photographing the place where the work is performed the best as the main camera, and set the stored image quality low as the other cameras 24 as sub cameras.
　あるいは、作業者の動きが所定量以上検知される可能性が高いカメラ２４の保存画質を高く設定し、それ以外のカメラ２４の保存画質を低く設定してもよい。 Alternatively, the storage image quality of the camera 24 which is highly likely to detect the movement of the worker by a predetermined amount or more may be set high, and the storage image quality of the other cameras 24 may be set low.
　あるいは、作業中に撮影された画像データの保存画質は高く設定し、作業の行われていない間に撮影された画像データの保存画質を低く設定してもよい。 Alternatively, the storage quality of image data captured during work may be set high, and the storage quality of image data captured while work is not performed may be set low.
　このように構成される本実施例も第１実施例と同様の作用効果を奏する。本実施例では、作業に応じて保存画質を制御するため、保存される作業映像データのサイズを低減することができ、ストレージコストを削減できる。 The present embodiment configured in this way also achieves the same effects as the first embodiment. In this embodiment, since the storage image quality is controlled according to the work, the size of the stored work video data can be reduced, and the storage cost can be reduced.
　なお、本発明は、上述した実施形態に限定されない。当業者であれば、本発明の範囲内で、種々の追加や変更等を行うことができる。上述の実施形態において、添付図面に図示した構成例に限定されない。本発明の目的を達成する範囲内で、実施形態の構成や処理方法は適宜変更することが可能である。 The present invention is not limited to the embodiments described above. Those skilled in the art can make various additions and modifications within the scope of the present invention. The embodiments described above are not limited to the configuration examples illustrated in the attached drawings. The configuration and processing method of the embodiment can be appropriately changed within the scope of achieving the object of the present invention.
　また、本発明の各構成要素は、任意に取捨選択することができ、取捨選択した構成を具備する発明も本発明に含まれる。さらに特許請求の範囲に記載された構成は、特許請求の範囲で明示している組合せ以外にも組み合わせることができる。 In addition, each component of the present invention can be arbitrarily selected, and an invention having a selected configuration is also included in the present invention. Furthermore, the configurations described in the claims can be combined with combinations other than the combinations specified in the claims.
　１：作業改善支援システム、２：作業現場、１１：作業状況監視部、１２：生産実績管理部、１３：生産計画管理部、１４：作業者管理部、１５：作業映像管理部、１６：作業分析部、１７：画面表示部、１８：実作業時間検出部、１９：作業者端末管理部、２１：セル、２２：ＲＦＩＤリーダ、２３：作業指示端末、２４：カメラ、２５：製品 1: Work improvement support system, 2: Work site, 11: Work condition monitoring unit, 12: Production results management unit, 13: Production plan management unit, 14: Worker management unit, 15: Work video management unit, 16: Work operation Analysis unit, 17: Screen display unit, 18: Actual working time detection unit, 19: Worker terminal management unit, 21: Cell, 22: RFID reader, 23: Work instruction terminal, 24: Camera, 25: Product

Claims (7)

  1. 　作業工程の改善を支援する作業改善支援システムであって、
    　前記作業工程に含まれる各作業に関する実績データを管理する実績管理部と、
    　前記各作業に関する計画データを管理する計画管理部と、
    　作業者により前記各作業が実施される作業現場の状況を撮影した作業映像データを管理する作業映像管理部と、
    　前記作業に関する前記実績データおよび前記計画データに基づいて、前記作業が改善すべき所定の作業に該当するか判定し、前記作業が前記所定の作業に該当すると判定した場合は、前記作業映像データのうち前記所定の作業に該当すると判定された前記作業に関する所定の作業映像データを抽出する作業分析部と、
    を備える作業改善支援システム。     A work improvement support system that supports the improvement of work processes
    A track record management unit that manages track data on each work included in the work process;
    A plan management unit that manages plan data regarding each of the operations;
    A work video management unit that manages work video data obtained by photographing the situation of a work site where each work is performed by a worker;
    Based on the actual data and the plan data regarding the work, it is determined whether the work corresponds to a predetermined work to be improved, and when it is determined that the work corresponds to the predetermined work, the work video data And a work analysis unit that extracts predetermined work video data related to the work determined to correspond to the predetermined work.
    Work improvement support system equipped with
  2. 　前記所定の作業映像データを表示する表示部をさらに備える、
    請求項１に記載の作業改善支援システム。     It further comprises a display unit for displaying the predetermined work video data,
    The work improvement support system according to claim 1.
  3. 　前記各作業と前記作業映像データとの関連付けは、前記各作業に対応して作業者へ提供される作業指示端末に対する前記作業者からの操作に基づく、
    請求項２に記載の作業改善支援システム。     The association between each work and the work video data is based on an operation from the worker on a work instruction terminal provided to the worker corresponding to each work.
    The work improvement support system according to claim 2.
  4. 　前記実績データは、前記作業に要した作業時間であり、
    　前記計画データは、前記作業の目標作業時間であり、
    　前記所定の作業は、前記作業時間が前記目標作業時間よりも所定値以上長いボトルネック作業である、
    請求項３に記載の作業改善支援システム。     The performance data is the working time required for the work,
    The plan data is a target work time of the work,
    The predetermined operation is a bottleneck operation in which the operation time is longer than the target operation time by a predetermined value or more.
    The work improvement support system according to claim 3.
  5. 　前記作業時間のうち、作業者が実際に作業を行うことのできた実作業時間を検出する実作業時間検出部をさらに備える、
    請求項４に記載の作業改善支援システム。     The system further includes an actual operation time detection unit that detects an actual operation time during which the operator can actually perform the operation among the operation times.
    The work improvement support system according to claim 4.
  6. 　前記作業映像管理部は、前記作業現場に配置された複数のカメラでそれぞれ撮影した作業映像データを管理するものであり、前記作業に応じて前記各作業映像データの画質を制御する、
    請求項５に記載の作業改善支援システム。     The work video management unit manages work video data respectively captured by a plurality of cameras arranged at the work site, and controls the image quality of each work video data according to the work.
    The work improvement support system according to claim 5.
  7. 　作業工程の改善を計算機により支援する作業改善支援方法であって、
    　前記計算機は、
    　　前記作業工程に含まれる各作業に関する実績データを管理し、
    　　前記各作業に関する計画データを管理し、
    　　作業者により前記各作業が実施される作業現場の状況を撮影した作業映像データを管理し、
    　　前記作業に関する前記実績データおよび前記計画データに基づいて、前記作業が改善すべき所定の作業に該当するか判定し、
    　　前記作業が前記所定の作業に該当すると判定した場合は、前記作業映像データのうち前記所定の作業に該当すると判定された前記作業に関する所定の作業映像データを抽出する、
    作業改善支援方法。     A work improvement support method which supports improvement of work process by computer,
    The computer is
    Manage actual data on each work included in the work process,
    Manage plan data on each work,
    Manage work video data obtained by photographing the situation of the work site where each work is performed by the worker
    Based on the actual data and the plan data on the work, it is determined whether the work corresponds to a predetermined work to be improved,
    When it is determined that the work corresponds to the predetermined work, predetermined work video data related to the work determined to correspond to the predetermined work is extracted from the work video data;
    Work improvement support method.
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