WO2021162015A1 - 工程管理方法、プログラム、及び工程管理システム - Google Patents

工程管理方法、プログラム、及び工程管理システム Download PDF

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Publication number
WO2021162015A1
WO2021162015A1 PCT/JP2021/004846 JP2021004846W WO2021162015A1 WO 2021162015 A1 WO2021162015 A1 WO 2021162015A1 JP 2021004846 W JP2021004846 W JP 2021004846W WO 2021162015 A1 WO2021162015 A1 WO 2021162015A1
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WIPO (PCT)
Prior art keywords
time
work
image
information
process control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/004846
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English (en)
French (fr)
Japanese (ja)
Inventor
林　正隆
将志 中山
市川　智之
優 小笠原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Intellectual Property Management Co Ltd
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Priority to CN202180013841.4A priority Critical patent/CN115066701A/zh
Priority to US17/796,999 priority patent/US20230057635A1/en
Priority to JP2022500431A priority patent/JPWO2021162015A1/ja
Publication of WO2021162015A1 publication Critical patent/WO2021162015A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G06Q10/109—Time management, e.g. calendars, reminders, meetings or time accounting
    • G06Q10/1091—Recording time for administrative or management purposes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/04—Manufacturing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source

Definitions

  • This disclosure generally relates to process control methods, programs, and process control systems. More specifically, the present disclosure relates to process control methods, programs, and process control systems for managing human work processes.
  • Patent Document 1 discloses an equipment operating rate monitor that records the operating state of production equipment.
  • This equipment utilization rate monitor is electrically connected to the production equipment, monitors the operation status of the production equipment, and records the operation data.
  • the equipment operating rate monitor includes a detection sensor unit and an operating rate monitor main body.
  • the detection sensor unit converts signals such as sound or light of production equipment into electrical signals.
  • the operating rate monitor main body aggregates operating data based on the electrical signal output from the detection sensor unit.
  • the equipment operating rate monitor described in Patent Document 1 can record the operating state of the production equipment, but has a problem that it is not possible to grasp the working state by a person.
  • the purpose of this disclosure is to provide a process control system, a process control method, and a program that make it easy to grasp the state of work by a person.
  • the process control method includes a work time acquisition step, an image acquisition step, and a linking step.
  • the work time acquisition step is a step of acquiring work time information regarding a work time in which a person is performing a work including a predetermined operation in a work area.
  • the image acquisition step is a step of acquiring image information regarding an image including at least the work area captured by the imaging device.
  • the linking step is a step of linking the work time information acquired in the work time acquisition step with the image information acquired in the image acquisition step as linking information.
  • the program according to one aspect of the present disclosure is a program for causing one or more processors to execute the above process control method.
  • the process control system includes a work time acquisition unit, an image acquisition unit, and a linking unit.
  • the work time acquisition unit acquires work time information related to the work time during which a person is performing work to be executed including a predetermined operation in the work area.
  • the image acquisition unit acquires image information regarding an image including at least the work area captured by the image pickup apparatus.
  • the linking unit links the work time information acquired by the work time acquisition unit with the image information acquired by the image acquisition unit as linking information.
  • FIG. 1 is a block diagram showing an outline of a process control system according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic view of a work area in which the same process control system is used.
  • FIG. 3 is a flowchart showing an example of the first operation of the process control system described above.
  • FIG. 4 is a flowchart showing an example of the second operation of the process control system described above.
  • FIG. 5 is a diagram showing an example of a graph displayed on the display unit in the same process control system.
  • FIG. 6 is a diagram showing an example of an image reproduced in the same graph.
  • FIG. 7 is a diagram showing another example of the image reproduced in the same graph.
  • FIG. 1 is a block diagram showing an outline of a process control system according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic view of a work area in which the same process control system is used.
  • FIG. 3 is a flowchart showing an example of the first operation of the process control system described above.
  • FIG. 8 is a diagram showing an example of an image reproduced in another example of the graph displayed on the display unit in the same process control system.
  • FIG. 9 is a block diagram showing an outline of the process control system according to the first modification of the embodiment of the present disclosure.
  • FIG. 10 is a block diagram showing an outline of the process control system according to the second modification of the embodiment of the present disclosure.
  • the process control method (process control system) of the present embodiment is used to control a process including work by a person.
  • the "person” referred to in the present disclosure is a worker involved in the manufacture of a product in a facility such as a factory.
  • the "work” referred to in the present disclosure is a work that is repeatedly performed by a person in producing a product. That is, when one product is produced through the work in one or more steps, the products are sequentially produced by the person repeatedly executing the work in each step.
  • the work by a person may include the work in the cell production method or the work in the line production method.
  • the work in the cell production method may include a method in which one worker completes a product, that is, a work in a so-called one-person stand production method.
  • a work in a so-called one-person stand production method it will be described that the work by a person is the work in the one-person stand production method.
  • the process control system is used to analyze the work performed by humans in the facility, that is, to perform IE (Industrial Engineering) analysis.
  • the process control system is also used to improve the QC process chart.
  • the process control system 100 includes a first acquisition unit 101, a second acquisition unit 102, and a processing unit 11.
  • the first acquisition unit 101 acquires the first time information regarding the time when the person B1 (see FIG. 2) exists in the work area A1.
  • the "work area” referred to in the present disclosure is an area in which the person B1 works in the facility.
  • the work area A1 is an area including the work table A11 (see FIG. 2) in which the person B1 performs the work.
  • the work area A1 is an area including one work table A11 among the plurality of work tables A11, and does not include the other work table A11.
  • the person B1 is not limited to one specific worker, and may include a plurality of workers if a plurality of workers perform the work on one workbench A11.
  • the "first time information" referred to in the present disclosure may be the time from when the person B1 enters the work area A1 to when the person B1 leaves the work area A1, or when the person B1 enters the work area A1. And / or the time when the person B1 is away from the work area A1.
  • the second acquisition unit 102 acquires the second time information regarding the operation time during which the person B1 is performing a predetermined operation in the work area A1.
  • the "predetermined operation” referred to in the present disclosure is an operation included in the work performed by the person B1, may be an operation of the person B1 itself, or is a jig C1 used by the person B1 in the work (see FIG. 2). It may be the operation of.
  • the "second time information" referred to in the present disclosure may be the time required for a predetermined operation, the start time of the predetermined operation, and / or the end time of the predetermined operation.
  • the predetermined operation may be a single operation, or may be, for example, one or more of the two or more operations required for the work in one step.
  • the processing unit 11 acquires work information related to the work executed by the person B1 including a predetermined operation based on the first time information and the second time information.
  • the first acquisition unit 101 continues to acquire the time from when the person B1 enters the work area A1 to when it leaves the work area A1 as the first time information.
  • the processing unit 11 acquires the time during which the person B1 stays in the work area A1 as the time (work information) during which the person B1 can perform the work.
  • the second acquisition unit 102 continues to acquire the start time and end time of a predetermined operation as the second time information. In this case, the processing unit 11 acquires the interval of the start time of the predetermined operation as the time (work information) required for the work by the person B1.
  • the work information related to the work performed by the person B1 in the work area A1 is acquired based on the first time information and the second time information. Therefore, the present embodiment has an advantage that it is easier to grasp the state of work by the person B1 as compared with the case where only the operation time of the production equipment (including the jig C1) is acquired.
  • the process control method includes a work time acquisition step ST1 (see FIG. 3), an image acquisition step ST2 (see FIG. 3), and a linking step ST3 (see FIG. 3).
  • work time acquisition steps ST1, image acquisition step ST2, and association step ST3 are realized by the work time acquisition unit 131, the image acquisition unit 132, and the association unit 14 of the process control system 100 shown in FIG. 1, respectively.
  • the work time information regarding the work time in which the person B1 is performing the work to be executed including the predetermined operation in the work area A1 is acquired.
  • the "working time” referred to in the present disclosure means the time from the start time of the operation (predetermined operation) of the jig C1 (see FIG. 2) in one work to the start time of the operation of the jig C1 in the next work. .. That is, in the normal state, the person B1 periodically repeats the work including the predetermined operation (here, the operation of the jig C1). Therefore, the predetermined operation cycle substantially coincides with the work cycle, in other words, the work time.
  • the working time acquisition step ST1 (working time acquisition unit 131) acquires the working time information by communicating with the first communication unit 10 described later.
  • image information regarding an image including at least the work area A1 imaged by the image pickup apparatus 6 is acquired.
  • the image pickup apparatus 6 is installed, for example, in the work area A1 or in the vicinity of the work area A1.
  • the "image" referred to in the present disclosure may be a still image or a moving image.
  • the moving image may be, for example, a set of continuous still images at intervals such that the movement of the person B1 in the work area A1 can be recognized.
  • the image is a moving image.
  • the image acquisition step ST2 (image acquisition unit 132) acquires image information by the image pickup apparatus 6.
  • the working time information acquired in the working time acquisition step ST1 and the image information acquired in the image acquisition step ST2 are linked as the linking information. That is, the associating information is information that associates the working time of the person B1 with the image (moving image) including the working area A1 captured during this working time. For example, it is assumed that the start time of the operation of the jig C1 in one work is 1:00 pm and the start time of the operation of the jig C1 in the next work is 1: 3 pm. In this case, the associating information is the information associating the working time from 1:00 pm to 1: 3 pm by the person B1 and the video imaged from 1:00 pm to 1: 3 pm. ..
  • the linking information in which the working time and the image captured during the working time are linked is acquired. Therefore, in the present embodiment, there is an advantage that by referring to the associative information, it becomes easier to grasp the state of work by the person B1 as compared with the case where the image is not viewed.
  • the process control system 100 of the present embodiment manages the work by each of the plurality of persons B1, but in the following, unless otherwise specified, the work by one person B1 among the plurality of persons B1 is performed. The explanation will focus on management.
  • the work area A1 is an area including one work table A11 in which the person B1 performs the work in the one-person stand production method, as described above.
  • a first sensor 1, a second sensor 2, a repeater 20, and an image pickup device 6 are installed in the work area A1.
  • a third sensor 3 and a gateway 4 are installed around the work area A1. Both the third sensor 3 and the gateway 4 may be installed in the work area A1.
  • the image pickup apparatus 6 may be installed around the work area A1 as long as the work area A1 can be imaged.
  • the first sensor 1, the second sensor 2, the repeater 20, the third sensor 3, and the gateway 4 are not included in the components of the process control system 100, but these are the processes. It may be included in the components of the management system 100.
  • the process control system 100 may further include a first sensor 1 and a second sensor 2.
  • the first sensor 1 is a reflective photoelectric sensor and is installed on the work table A11. Specifically, as shown in FIG. 2, the first sensor 1 is a leg of the work table A11, and when the person B1 works on the work table A11, infrared rays or the like are present in the space where the person B1 exists. It is installed in a position where it can project the light of. The first sensor 1 detects the presence or absence of the person B1 in the work area A1 by projecting light into the space by the light emitting unit and detecting the presence or absence of reflected light by the light receiving unit.
  • the first sensor 1 detects that a person B1 exists in the work area A1 when the light receiving unit receives reflected light of a predetermined amount or more, and in other cases, the first sensor 1 detects a person in the work area A1. Detects that B1 does not exist.
  • the first sensor 1 an element or the like in which a light emitting unit and a light receiving unit are integrated can be used. Further, in this case, in the first sensor 1, the circuits constituting the light emitting unit, the light receiving unit, and the like can be housed in one housing.
  • the first sensor 1 has a wireless communication module that performs optical wireless communication using light such as infrared rays or visible light as a medium, or wireless communication using radio waves as a medium, with the gateway 4. Then, the first sensor 1 transmits the detection result of the first sensor 1 to the gateway 4 by the wireless communication module.
  • the detection result of the first sensor 1 is represented by a binary signal
  • the signal value of the binary signal is at a high level while the presence of the person B1 is detected, and the presence of the person B1 is not detected.
  • the interval will be low level.
  • the level of the binary signal may be the opposite.
  • the first sensor 1 and the gateway 4 are connected by a network different from the existing network at the facility.
  • the second sensor 2 is a contact type (contact type) sensor or a non-contact type sensor using magnetism, radio waves, light, or the like, and is installed on the work table A11.
  • the second sensor 2 is attached to the jig C1 or the like used by the person B1 on the work table A11, for example.
  • the jig C1 is operated and used at least once for each work repeatedly executed by the person B1.
  • the jig C1 is, for example, a toggle clamp for fixing the component E1.
  • the second sensor 2 detects a predetermined movement performed by the person B1 in the work area A1 by detecting the movement of the lever C11 possessed by the jig C1.
  • the lever C11 is configured to be movable between the first position and the second position.
  • the jig C1 is in a state in which the component E1 is not fixed, that is, in a state where the component E1 is not in use.
  • the lever C11 is in the second position, the jig C1 is in a state where the component E1 is fixed, that is, in a state where it is in use.
  • the second sensor 2 detects a predetermined operation (movement of the lever C11) performed by the person B1 in the work area A1 by detecting the movement of the lever C11. Specifically, the second sensor 2 detects that a predetermined operation is performed when the lever C11 is in the second position, and performs a predetermined operation when the lever C11 is in the first position. Detects no.
  • the second sensor 2 has a wired communication module that performs wired communication with the repeater 20 via a communication cable. Then, the second sensor 2 transmits the detection result of the second sensor 2 to the repeater 20 by the wired communication module.
  • the second sensor 2 is not limited to a configuration in which wired communication is performed, and may be configured to perform communication by short-range radio or the like.
  • the detection result of the second sensor 2 is represented by a binary signal
  • the signal value of the binary signal is at a high level while detecting a predetermined operation, and while not detecting a predetermined operation. It becomes a low level.
  • the level of the binary signal may be the opposite.
  • the image pickup device 6 is a camera having a solid-state image sensor such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal-Oxide-Semiconductor) image sensor, and is installed on the work table A11.
  • the image pickup apparatus 6 is installed on a pillar of the work table A11.
  • the image pickup apparatus 6 has at least the work area A1 as the image pickup range.
  • the image pickup apparatus 6 is installed at a position where it is possible to take an image of an operation other than the operation by the person B1 using the jig C1 and the operation by the person B1 using the jig C1.
  • the operation other than the operation using the jig C1 by the person B1 may include, for example, an operation of taking out the component E1 from the pallet installed in the work area A1. Then, in the present embodiment, the imaging device 6 captures a moving image in the imaging range.
  • the image pickup device 6 has a wireless communication module that performs optical wireless communication using light such as infrared rays or visible light as a medium, or wireless communication using radio waves as a medium, with the gateway 4. Then, the image pickup device 6 transmits the captured image (moving image) to the gateway 4 by the wireless communication module.
  • the image pickup apparatus 6 and the gateway 4 are connected by a network different from the existing network at the facility.
  • the repeater 20 has a connection interface capable of connecting one or more second sensors 2 by wire or wirelessly, and a wireless communication module.
  • a connection interface capable of connecting one or more second sensors 2 by wire or wirelessly
  • a wireless communication module when one or more second sensors 2 and one or more image pickup devices 6 are connected by wire, one or more second sensors 2 and one or more image pickup devices 6 are connected to the connection interface of the repeater 20. Each is connected via a communication cable.
  • the repeater 20 may be configured such that a plurality of second sensors 2 and a plurality of image pickup devices 6 are connected by a communication method using a bus line or the like, respectively.
  • the wireless communication module performs optical wireless communication using light such as infrared rays or visible light as a medium, or wireless communication using radio waves as a medium, with the gateway 4.
  • the repeater 20 transmits the detection result transmitted from one or more second sensors 2 connected to the repeater 20 and the image transmitted from one or more image pickup devices 6 connected to the repeater 20 to the gateway 4. It has a function to (relay).
  • the repeater 20 and the gateway 4 are connected by a network different from the existing network at the facility. In this embodiment, this network is the same as the network between the first sensor 1 and the gateway 4.
  • the third sensor 3 is an optical sensor and has a light receiving unit that receives light emitted by a signal tower (registered trademark).
  • the Signal Tower (registered trademark) is constructed by arranging a plurality of lamps in a tower shape and is installed in the facility.
  • the Signal Tower® is used to visually inform the surroundings of the operating status of the corresponding production equipment.
  • the Signal Tower® has a first lamp that emits green light, a second lamp that emits yellow light, and a third lamp that emits red light.
  • the signal tower targets a plurality of worktables A11 as an example. Then, the signal tower (registered trademark) has the first lamp when the work is normally performed on the plurality of work tables A11, and the first lamp when the work is interrupted on any of the work tables A11. Turn on the 2nd lamp and turn on the 3rd lamp when the work is interrupted on all the worktables A11.
  • the third sensor 3 detects the working status on the plurality of worktables A11 by receiving the light emitted by the first lamp, the second lamp, or the third lamp.
  • the third sensor 3 has a wireless communication module that performs optical wireless communication using light such as infrared rays or visible light as a medium, or wireless communication using radio waves as a medium, with the gateway 4. Then, the third sensor 3 transmits the detection result of the third sensor 3 to the gateway 4 by the wireless communication module.
  • the signal representing the detection result of the third sensor 3 can take three values of the first value, the second value, and the third value, when the first lamp is lit, the first value and the second lamp The second value is set while is lit, and the third value is set while the third lamp is lit.
  • the third sensor 3 and the gateway 4 are connected by a network different from the existing network at the facility. In this embodiment, this network is the same as the network between the first sensor 1 and the gateway 4.
  • the gateway 4 receives data received from each of the first sensor 1, the second sensor 2, and the third sensor 3 via a network N1 such as the Internet, for example, in the first communication unit 10 of the process control system 100 (described later). It has a function to send to. Further, the gateway 4 has a function of transmitting the data received from the image pickup apparatus 6 to the second communication unit 13 (described later) of the process control system 100 via the network N1.
  • the gateway 4 is one, but it may be composed of a gateway corresponding to the first communication unit 10 and a gateway corresponding to the second communication unit 13.
  • the gateway 4 is a wireless communication module that can be connected to the network N1 through, for example, a mobile phone network (carrier network) provided by a telecommunications carrier.
  • the mobile phone network includes, for example, a 3G (third generation) line, a 4G (fourth generation) line, a 5G (fifth generation) line, and the like.
  • the gateway 4 may perform wireless communication with the first communication unit 10 and the second communication unit 13 by a wireless communication method conforming to a standard such as WiFi (registered trademark).
  • WiFi registered trademark
  • part or all of the communication between the gateway 4 and the first communication unit 10 and the second communication unit 13 is connected by a network N1 different from the existing network at the facility. If there is an existing LAN (Local Area Network) wiring or the like in the facility near the workbench A11, the gateway 4 communicates with the first communication unit 10 and the second communication unit 13 via the LAN wiring. May be good.
  • the process control system 100 is realized by an image pickup device 6, a processing device located at a remote location away from the installation locations of the plurality of work tables A11, and the like.
  • the processing device is, for example, a server or the like.
  • the processing apparatus is outside the facility, but may be inside the facility.
  • the process control system 100 includes a first communication unit 10, a processing unit 11, a first storage unit 12, a second communication unit 13, a linking unit 14, and a second storage unit 15. And have.
  • the first communication unit 10, the processing unit 11, and the first storage unit 12 are provided in the processing device.
  • the second communication unit 13, the linking unit 14, and the second storage unit 15 are provided in the image pickup device 6. Further, in the present embodiment, the first storage unit 12 and the second storage unit 15 are included in the components of the process control system 100, but the first storage unit 12 and the second storage unit 15 are the process control system. It does not have to be included in 100 components.
  • the first communication unit 10 is a communication module that can be connected to the network N1 through, for example, the above-mentioned mobile phone network.
  • the first communication unit 10 is preferably a wireless communication module that can be wirelessly connected to the network N1.
  • the first communication unit 10 has a function of communicating with the gateway 4 via the network N1 and a function of communicating with the terminal 5 via the network N1.
  • the terminal 5 is a terminal used by, for example, the manager (or the manager of the facility) of the process control system 100, and is, for example, a smartphone or a tablet-type computer. Further, the terminal 5 may be, for example, a desktop type personal computer or a laptop type personal computer. In the present embodiment, the terminal 5 is, for example, a tablet-type computer having a display unit 50 such as a liquid crystal display.
  • the first communication unit 10 has functions as a first acquisition unit 101, a second acquisition unit 102, a third acquisition unit 103, and an output unit 104.
  • the first acquisition unit 101 acquires the detection result of the first sensor 1 via the gateway 4 and the network N1.
  • the first acquisition unit 101 acquires the detection result of the first sensor 1 and the time stamp related to the time when the person B1 is detected by the first sensor 1 in association with each other.
  • the "time when a person is detected" here is a time when the person B1 enters the work area A1 and / or a time when the person B1 leaves the work area A1. That is, the first acquisition unit 101 acquires the first time information regarding the time when the person B1 exists in the work area A1.
  • the first time information includes a time stamp relating to the acquired time (the time when the person B1 is detected by the first sensor 1).
  • the time stamp is attached at the time when the detection result from the first sensor 1 is acquired by the gateway 4 as an example. Therefore, strictly speaking, the time represented by the time stamp is different from the time when the detection result is acquired by the first sensor 1, but it is almost the same.
  • the second acquisition unit 102 acquires the detection result of the second sensor 2 via the repeater 20, the gateway 4, and the network N1.
  • the second acquisition unit 102 acquires the detection result of the second sensor 2 and the time stamp related to the time when the predetermined operation is detected by the second sensor 2 in association with each other.
  • the "time when a predetermined operation is detected" here is the start time of the predetermined operation and / or the end time of the predetermined operation. That is, the second acquisition unit 102 acquires the second time information regarding the operation time during which the person B1 is performing a predetermined operation in the work area A1.
  • the second time information includes a time stamp relating to the acquired time (time when a predetermined operation is detected by the second sensor 2).
  • the time stamp is attached at the time when the detection result from the second sensor 2 is acquired by the gateway 4 as an example. Therefore, strictly speaking, the time represented by the time stamp is different from the time when the detection result is acquired by the second sensor 2, but it is almost the same.
  • the second sensor 2 detects the movement of the lever C11 held by the jig C1 as described above. Therefore, the time when the second sensor 2 detects the predetermined operation corresponds to the time when the operation of the jig C1 (or the person B1) is detected. That is, in the present embodiment, the second acquisition unit 102 is for the operation time of the jig C1 used in the work area A1 (start time and / or end time of the operation of the jig C1) or the work of the person B1. Acquires the operation time and the like as the second time information.
  • both the first time information and the second time information include a time stamp.
  • at least one of the first time information and the second time information includes a time stamp regarding the acquired time.
  • both the first sensor 1 and the repeater 20 have a unique identifier. Then, the first sensor 1 and the repeater 20 transmit the detection result of the first sensor 1 and the detection result of the second sensor 2 to the gateway 4, including the identifiers, respectively. Therefore, the first time information acquired by the first acquisition unit 101 includes the identifier of the first sensor 1. Similarly, the second time information acquired by the second acquisition unit 102 includes the identifier of the repeater 20. Since both the first sensor 1 and the repeater 20 are installed on the workbench A11, these identifiers substantially correspond to the identifiers of the person B1 who works on the workbench A11. That is, the first acquisition unit 101 and the second acquisition unit 102 acquire the first time information and the second time information separately for each person B1.
  • the third acquisition unit 103 acquires the detection result of the third sensor 3 via the gateway 4 and the network N1.
  • the third acquisition unit 103 acquires the detection result of the third sensor 3 and the time stamp related to the time when the work status on the plurality of work tables A11 is detected by the third sensor 3 in association with each other. do.
  • the time stamp is attached at the time when the detection result from the third sensor 3 is acquired by the gateway 4 as an example. Therefore, strictly speaking, the time represented by the time stamp is different from the time when the detection result is acquired by the third sensor 3, but it is almost the same.
  • the output unit 104 transmits data to the terminal 5 via the network N1.
  • This data includes work information acquired by the processing unit 11, and is displayed on the display unit 50 by the GUI (Graphical User Interface) of the terminal 5. That is, the output unit 104 (display step ST4 (see FIG. 4) outputs (displays) the work information as data (graph G1 (see FIG. 5)) visually displayed on the display unit 50.
  • the display unit 50 of the terminal 5 does not display the work information as it is, but displays the statistical data obtained by executing the statistical processing (described later) based on the work information in the processing unit 11. That is, the output unit 104 outputs the work information as data displayed on the display unit 50 in an indirect form instead of a direct form.
  • the statistical data will be described in "(4) Statistics" described later. Data example ”will be described in detail.
  • the processing unit 11 is a computer system whose main configuration is one or more processors and memory as hardware. In the processing unit 11, various functions are realized by executing the program recorded in the memory by one or more processors.
  • the program may be pre-recorded in the memory of the processing unit 11, may be provided through a telecommunication line, and may be recorded and provided on a non-temporary recording medium such as an optical disk or a hard disk drive that can be read by a computer system. You may.
  • the processing unit 11 determines the time during which the person B1 stays in the work area A1 (hereinafter, also referred to as “attended time”) from the work area A1. It is possible to acquire information such as the time when the person B1 is away (hereinafter, also referred to as “leaving time”) or the number of times the person B1 leaves the seat. Further, the processing unit 11 has a time required for a predetermined operation (here, a usage time of the jig C1) or a predetermined number of operations (here, the number of times of the predetermined operation) based on the second time information acquired by the second acquisition unit 102.
  • a predetermined operation here, a usage time of the jig C1
  • a predetermined number of operations here, the number of times of the predetermined operation
  • the processing unit 11 acquires the number of times of the predetermined operation, and as a result, also acquires the production number of the product.
  • the processing unit 11 sets the time from the start time of the operation of the jig C1 in one work to the start time of the operation of the jig C1 in the next work as the time during which the person B1 is performing the work (hereinafter, "" It is also called “working time”). That is, in the normal time, the person B1 periodically repeats the work including a predetermined operation. Therefore, the predetermined operation cycle substantially coincides with the work cycle, in other words, the work time. In this way, the processing unit 11 acquires work information related to the work executed by the person B1 including the predetermined operation based on the first time information and the second time information.
  • the first acquisition unit 101 and the second acquisition unit 102 acquire the first time information and the second time information separately for each person B1. Therefore, in the present embodiment, the processing unit 11 acquires the work information for each person B1 based on the first time information and the second time information for each person B1.
  • the processing unit 11 acquires the work status on the plurality of work tables A11 based on the information (the detection result of the third sensor 3 and the time stamp) acquired by the third acquisition unit 103.
  • the processing unit 11 has a function of executing statistical processing based on work information. Specifically, the processing unit 11 executes appropriate statistical processing using the above-mentioned attendance time, leaving time, usage time of jig C1, and / or time required for work of the person B1. , Generate statistical data.
  • the statistical processing may be executed periodically by the processing unit 11 or may be executed by using an output request as a trigger.
  • the "output request" referred to here is a command given from the terminal 5 to the process control system 100 via the network N1 by, for example, the administrator operating the terminal 5. That is, when the administrator wants to view the statistical data on the display unit 50 of the terminal 5, an output request is made to the process control system 100.
  • the first storage unit 12 is composed of at least one of a non-temporary recording medium such as a hard disk and a non-temporary recording medium such as a rewritable non-volatile semiconductor memory.
  • the work information acquired by the processing unit 11 and the association information associated with the association unit 14 are stored in association with the corresponding person B1. That is, the first storage unit 12 stores work information and association information for each person B1.
  • the first storage unit 12 stores statistical data obtained by executing statistical processing in the processing unit 11. The work information, the association information, and / or the statistical data stored in the first storage unit 12 are read out, for example, in response to an output request from the terminal 5.
  • the second communication unit 13 is a communication module that can be connected to the network N1 through, for example, the above-mentioned mobile phone network or the like.
  • the second communication unit 13 is preferably a wireless communication module that can be wirelessly connected to the network N1.
  • the second communication unit 13 is a wireless communication module included in the image pickup device 6.
  • the second communication unit 13 has functions as a work time acquisition unit 131 and an image acquisition unit 132.
  • the working time acquisition unit 131 acquires the working time information from the first storage unit 12 via the gateway 4, the network N1, and the first communication unit 10.
  • the work information acquired by the processing unit 11 is stored in the first storage unit 12 separately for each person B1. Therefore, the work time acquisition unit 131 acquires the work time information among the work information separately from the first storage unit 12 for each person B1 via the gateway 4, the network N1, and the first communication unit 10.
  • the image acquisition unit 132 acquires image information including the image captured by the image pickup device 6.
  • the image information also includes time information regarding the time when the image was captured.
  • the time information is based on the time measured by the timer built in the image pickup apparatus 6.
  • the image pickup apparatus 6 has a unique identifier. Therefore, the image information acquired by the image acquisition unit 132 includes the identifier of the image pickup apparatus 6. Since the image pickup apparatus 6 is installed on the workbench A11, this identifier substantially corresponds to the identifier of the person B1 who works on the workbench A11. That is, the image acquisition unit 132 acquires the image information separately for each person B1.
  • the second storage unit 15 is composed of at least one of a non-temporary recording medium such as a hard disk and a non-temporary recording medium such as a rewritable non-volatile semiconductor memory.
  • the second storage unit 15 has a first memory 151 and a second memory 152.
  • the work time information acquired by the work time acquisition unit 131 and the image information acquired by the image acquisition unit 132 are stored in association with the corresponding person B1. That is, the work time information and the image information are stored in the first memory 151 for each person B1.
  • the linking information in which the working time information determined by the linking unit 14 to satisfy the predetermined condition and the image information corresponding to the working time information are linked to the corresponding person. It is stored in association with B1. That is, the second memory 152 stores the association information for each person B1. As described above, in the present embodiment, the image information acquired by the image acquisition unit 132 is unconditionally stored in the first memory 151. On the other hand, only the image information (linking information) selected by the linking unit 14 is stored in the second memory 152.
  • the linking unit 14 is a computer system whose main configuration is one or more processors and memory as hardware. In the associating unit 14, various functions are realized by executing the program recorded in the memory by one or more processors.
  • the program may be pre-recorded in the memory of the linking unit 14, may be provided through a telecommunication line, and may be recorded and provided on a non-temporary recording medium such as an optical disk or a hard disk drive that can be read by a computer system. May be done.
  • the linking unit 14 obtains the work time information acquired by the work time acquisition unit 131 (working time acquisition step ST1) and the image information acquired by the image acquisition unit 132 (image acquisition step ST2). Link as link information.
  • the linking unit 14 (linking step ST3) links the work time information satisfying a predetermined condition with the image information. Specifically, the linking unit 14 reads out the work time information and the image information including the image captured in the work time included in the work time information from the first memory 151. Then, the associating unit 14 determines whether or not the working time information satisfies a predetermined condition.
  • the linking unit 14 When the work time information satisfies a predetermined condition, the linking unit 14 generates the linking information by linking the read work time information and the image information, and the generated linking information is used in the second memory 152. To memorize. On the other hand, when the work time information does not satisfy the predetermined condition, the linking unit 14 discards the read work time information and the image information. In this case, the linking unit 14 may erase the read work time information and the image information from the first memory 151.
  • the linking unit 14 employs at least one predetermined condition among the plurality of predetermined conditions listed below regarding the working time information.
  • the predetermined condition may include that the working time is equal to or longer than the threshold time.
  • the threshold time is set to, for example, a time longer than the normal working time by the person B1 and is expected to be taken when some abnormality occurs during the work. Specifically, when the normal working time by the person B1 is about 30 seconds on average, it is conceivable to set the threshold time to about 1 minute. Of course, the threshold time may be set to the normal working time by the person B1. The threshold time can be set, for example, by the administrator operating the terminal 5.
  • the linking unit 14 can store the linking information in the second memory 152 when it is considered that some abnormality has occurred during the work.
  • the predetermined condition may include that the working time is within the set time range.
  • the set time is set based on, for example, the average time of the normal working time by the person B1. Specifically, if the average time of the normal working time by the person B1 is 30 seconds, the set time may be set in the range of 20 seconds to 40 seconds.
  • the set time can be set, for example, by the administrator operating the terminal 5.
  • the linking unit 14 can store in the second memory 152 the status of work by the person B1 in a normal time in which no abnormality has occurred as linking information.
  • the set time may be set based on the representative value of the working time in the time zone specified in advance.
  • the representative value is an average value, a median value, a mode value, or the like.
  • the linking unit 14 reads the work time information acquired from 11:00 am to 12:00 am from the first memory 151, and calculates the average value (representative value) of the work time based on all the read work time information. calculate.
  • the associating unit 14 sets the set time based on the calculated average value, and sets the working time information within the range of the set set time and the corresponding image information as the associating information in the second memory.
  • the time zone and the representative value can be set, for example, by the administrator operating the terminal 5. In this aspect, it is possible to automatically set the set time according to the request of the administrator without the administrator setting the set time.
  • the process control system 100 executes the first operation and the second operation.
  • the first operation is mainly executed by the tying unit 14.
  • the second operation is mainly executed by the processing unit 11.
  • the first operation and the second operation may be executed at different timings from each other, or may be executed in parallel.
  • Step S1 corresponds to working time acquisition step ST1.
  • image information including the image captured by the image pickup apparatus 6 is periodically transmitted to the second communication unit 13.
  • the image acquisition unit 132 periodically acquires image information (S2).
  • Step S2 corresponds to image acquisition step ST2.
  • the acquired work time information and image information are stored in the first memory 151 of the second storage unit 15 (S3).
  • the linking unit 14 reads out the work time information and the image information from the first memory 151 periodically or every time a certain number of work time information is accumulated, and the read work time information satisfies a predetermined condition. Whether or not it is determined (S4).
  • the associating unit 14 associates the working time information with the corresponding image information (S5).
  • Step S5 corresponds to associating step ST3.
  • the associating unit 14 stores the associated work time information and the image information as the associating information in the second memory 152 of the second storage unit 15 (S6).
  • the process control system 100 repeats the above steps S1 to S6.
  • the detection result of the first sensor 1 in the work area A1 is periodically transmitted to the first communication unit 10 via the gateway 4 and the network N1.
  • the first acquisition unit 101 periodically acquires the first time information including the detection result of the first sensor 1 and the time stamp (S7).
  • the detection result of the second sensor 2 in the work area A1 is periodically transmitted to the first communication unit 10 via the repeater 20, the gateway 4, and the network N1.
  • the second acquisition unit 102 periodically acquires the second time information including the detection result of the second sensor 2 and the time stamp (S8).
  • the processing unit 11 periodically acquires work information based on the first time information acquired by the first acquisition unit 101 and the second time information acquired by the second acquisition unit 102 (S9). ).
  • the acquired work information is stored in the first storage unit 12.
  • the processing unit 11 periodically acquires the association information from the second memory 152 of the second storage unit 15 via the gateway 4, the network N1, and the second communication unit 13 (S10).
  • the acquired association information is stored in the first storage unit 12.
  • Step S11 corresponds to display step ST4.
  • the processing unit 11 corresponds to the selected work information.
  • the image information included in the associated information is read from the first storage unit 12, and the read image information is output from the output unit 104 to the terminal 5, so that the image information is reproduced on the display unit 50 of the terminal 5 (S15).
  • Step S15 corresponds to regeneration step ST5.
  • the reproduction step ST5 is a step of reproducing the image information associated with the selected work time information on the display unit 50 when the work time information is selected in the graph G1.
  • “Reproducing the image information” as used in the present disclosure means a mode in which the still image is reproduced on the display unit 50 when the image included in the image information is a still image. Further, “reproducing image information” as used in the present disclosure means that when the image included in the image information is a moving image, the moving image is reproduced on the display unit 50, and a still image obtained by cutting out a time point of the moving image. May include an aspect of reproducing the image on the display unit 50. In the latter aspect, the moving image is played by the administrator operating the terminal 5.
  • the process control system 100 repeats the above steps S7 to S15.
  • the process control system 100 may be configured to execute statistical processing each time work information is acquired and store the result in the first storage unit 12.
  • the processing unit 11 outputs the statistical data stored in the first storage unit 12 to the terminal 5 when there is an output request.
  • the statistical data shown in FIG. 5 shows the variation in the working time of the person B1 in a specific time zone of a certain day.
  • the graph G1 with the vertical axis representing the working time and the horizontal axis representing the time is displayed on the display unit 50 as statistical data. That is, the graph G1 is drawn as a two-dimensional or higher image including at least the working time and the time when the working time is acquired.
  • FIG. 5 shows an example of statistical data in the time zone from about 8:50 to about 10 o'clock.
  • the graph G1 is displayed on the display unit 50 in a form including the first line G11, the second line G12, and the third line G13.
  • the first line G11 represents the average value of the working hours of the person B1.
  • the first line G11 may represent the median value of the working time of the person B1 instead of the average value of the working time of the person B1.
  • the second line G12 represents the target value of the working time when the person B1 performs the standard work, in other words, the working time of the person B1.
  • the third line G13 represents a threshold time for distinguishing whether the working time of the person B1 is a normal value or an abnormal value (outlier value).
  • the processing unit 11 counts this working time as an abnormal value.
  • the target value of the working time of the person B1 and the threshold time are both set in advance by the administrator.
  • the administrator can grasp the variation in the working time depending on the person B1 by viewing the graph G1 on the terminal 5. Further, the administrator can grasp the abnormal value of the working time, in other words, the occurrence of some abnormality in the work by viewing the graph G1 on the terminal 5, so that the cause of the occurrence of the abnormality is investigated and the work is performed. It can also be used to improve the situation.
  • the administrator can appropriately change the working time scale and / or the time scale of the graph G1 by performing a predetermined operation on the terminal 5.
  • the data D1 is data in which the working time is equal to or longer than the threshold time, that is, the predetermined condition is satisfied.
  • the icon I1 shown in FIG. 5 indicates that the administrator has selected the data D1 by operating the terminal 5.
  • the processing unit 11 reads the association information corresponding to the working time information from the second memory 152 based on the working time information included in the selected data D1.
  • the processing unit 11 causes the display unit 50 to reproduce the image information in the read association information.
  • the processing unit 11 cuts out a time point of the image (moving image) included in the read image information, and the processing unit 11 faces right to select playback / stop of the image.
  • the triangular icon I2 and the triangle icon I2 are displayed in the window W1 superimposed on the graph G1.
  • the processing unit 11 reproduces the image (moving image) displayed in the window W1. Let me.
  • the processing unit 11 plays back the image displayed in the window W1. Stop it.
  • the process control system (process control method) of the comparative example is not provided with the second communication unit 13 (working time acquisition step ST1 and image acquisition step ST2) and the linking unit 14 (linking step ST3). It is different from the process control system 100 (process control method) of the form.
  • the administrator can view the graph G1 on the display unit 50 of the terminal 5.
  • the manager can only view the graph G1, that is, the work time as the state of work by the person B1. Therefore, in the process control system of the comparative example, even if the administrator discovers data that is considered to have caused some abnormality due to a long working time while browsing the graph G1, for example, the administrator corresponds to this data. I cannot view the work image (video). Even if the work performed by the person B1 is imaged by the image pickup device, when the administrator intends to view the image of the work corresponding to this data, among the images (moving images) captured by the image pickup device, this It is necessary to perform the complicated work of finding and playing back the image in the time zone corresponding to the data.
  • the process control system 100 of the present embodiment it is possible to acquire the linking information in which the working time and the image captured during the working time are linked. Therefore, in the present embodiment, when the administrator discovers data in which the work time is long and it is considered that some abnormality has occurred while browsing the graph G1, for example, the administrator can refer to the association information. Images (moving images) corresponding to this data can be viewed immediately. That is, in the present embodiment, by pinpointing the image (moving image) at the time when the abnormality is estimated to have occurred, whether or not the abnormality has actually occurred, and what if the abnormality has occurred Since it is possible to grasp whether the situation has occurred, the time required to analyze the image can be significantly reduced. Therefore, in the present embodiment, there is an advantage that by referring to the associative information, it becomes easier to grasp the state of work by the person B1 as compared with the process control system (process control method) of the comparative example.
  • the administrator can select multiple data.
  • the display unit 50 of the terminal 5 reproduces a plurality of image information corresponding to the plurality of data on the display unit 50. That is, in the reproduction step ST5, when a plurality of work time information is selected in the graph G1, a plurality of image information associated with each of the selected plurality of work time information is reproduced on the display unit 50.
  • the data D2 is data that satisfies a predetermined condition.
  • the processing unit 11 causes the display unit 50 to reproduce the image information corresponding to the two selected data D1 and D2, respectively.
  • the window W1 containing the image corresponding to the data D1 and the window W2 containing the image corresponding to the data D2 are displayed on the display unit 50 in a state of being superimposed on the graph G1.
  • the manager can compare the work performed by the person B1 at a plurality of working hours different from each other.
  • the administrator simultaneously reproduces both images (videos) of the work by the person B1 whose work time is approximately the standard time and the work by the person B1 whose work time is long and it is considered that some abnormality has occurred. It is possible to compare by doing.
  • the administrator can perform a predetermined operation on the terminal 5 to display the work of a plurality of people B1. It is possible to display a plurality of graphs G1 for the work on the display unit 50.
  • the graph G2 for the work of the person B1 with the identifier of "No. OO" and the graph G3 for the work of the person B1 with the identifier of "No. XX" are shown. It is displayed on the display unit 50.
  • the processing unit 11 causes the display unit 50 to reproduce the image information corresponding to the two selected data D3 and D4, respectively.
  • the window W3 containing the image corresponding to the data D3 is displayed on the graph G2
  • the window W4 containing the image corresponding to the data D4 is displayed on the graph G3.
  • the manager can compare the work done by a plurality of people B1 who are different from each other. For example, the administrator can compare the work by the expert person B1 and the work by the beginner person B1 by simultaneously playing back both images (moving images).
  • the above-described embodiment is only one of the various embodiments of the present disclosure.
  • the above-described embodiment can be changed in various ways depending on the design and the like as long as the object of the present disclosure can be achieved.
  • the same function as the process control method may be embodied in a computer program, a non-temporary recording medium on which the computer program is recorded, or the like.
  • the program according to one aspect is a program for causing one or more processors to execute the above-mentioned process control method.
  • the process control system 100 (process control method) of the first modification is different from the process control system 100 of the above-described embodiment in that the adjustment unit 16 is provided.
  • the adjustment unit 16 is the execution body of the adjustment step.
  • the adjustment step is a step of adjusting the reproduction time of the image information to be reproduced in the reproduction step ST5 according to the input.
  • the "input" referred to in the present disclosure is, for example, an input by an administrator, and is performed by the administrator operating the terminal 5.
  • an input from the outside is received, and the reproduction time of the image information to be reproduced in the reproduction step ST5 is adjusted according to the received input.
  • the input from the outside is, for example, an input by an administrator.
  • the adjusting unit 16 can adjust the reproduction time of this image (moving image) according to the input. Specifically, when the adjustment unit 16 receives the input by the administrator, the adjustment unit 16 receives the input and the playback time (start time and end time) of the image (movement) stored in the second memory 152 by the linking unit 14. Time) is adjusted. Therefore, when the associating unit 14 stores the associating information in the second memory 152, the associating unit 14 stores the image information including the image (moving image) corresponding to the playback time adjusted by the adjusting unit 16 in the second memory 152. To memorize.
  • the adjusting unit 16 can adjust so that the playback time is started from a time earlier than the start time of the working time according to the input. Further, for example, the adjusting unit 16 can adjust so that the reproduction time ends at a time later than the end time of the working time according to the input. Further, for example, the adjusting unit 16 reproduces only the working time excluding the operating time (that is, the time when the person B1 is using the jig C1) (in other words, the preparation time) in response to the input. It can be adjusted to the time.
  • the operating time that is, the time when the person B1 is using the jig C1
  • the preparation time in response to the input. It can be adjusted to the time.
  • the process control system 100 (process control method) of the second modification is different from the process control system 100 of the above-described embodiment in that it includes a synchronization unit 17.
  • the synchronization unit 17 is the execution subject of the synchronization step.
  • the synchronization step is a step of synchronizing the work time acquisition step ST1 and the image acquisition step ST2.
  • the synchronization unit 17 acquires standard time information from, for example, an NTP (Network Time Protocol) server, and updates the timer of the process control system 100 based on the acquired standard time information.
  • NTP Network Time Protocol
  • the synchronization unit 17 transmits standard time information to the image pickup device 6, the first sensor 1, and the second sensor 2 via, for example, the gateway 4 and the network N1, so that the image pickup device 6 and the first sensor 1 , And update each timer of the second sensor 2. In this case, it is preferable to update the timer in consideration of the delay due to communication.
  • the timers of the process control system 100, the image pickup device 6, the first sensor 1, and the second sensor 2 are updated based on the standard time information, and as a result, the working time acquisition step ST1 and The image acquisition step ST2 and the image acquisition step ST2 are synchronized. That is, the acquisition time of the work time information acquired by the work time acquisition unit 131 and the acquisition time of the image information acquired in the image acquisition step ST2 are times based on a timer that ticks substantially the same time.
  • the process control system 100 in the present disclosure includes a computer system.
  • a computer system mainly consists of a processor and a memory as hardware.
  • the processor executes the program recorded in the memory of the computer system, the function as the process control system 100 in the present disclosure is realized.
  • the program may be pre-recorded in the memory of the computer system, may be provided through a telecommunications line, and may be recorded on a non-temporary recording medium such as a memory card, optical disk, hard disk drive, etc. that can be read by the computer system. May be provided.
  • a processor in a computer system is composed of one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI).
  • IC semiconductor integrated circuit
  • LSI large scale integrated circuit
  • the integrated circuit such as IC or LSI referred to here has a different name depending on the degree of integration, and includes an integrated circuit called a system LSI, VLSI (Very Large Scale Integration), or ULSI (Ultra Large Scale Integration). Further, an FPGA or a logic device capable of reconfiguring the junction relationship inside the LSI or reconfiguring the circuit partition inside the LSI, which is programmed after the LSI is manufactured, can also be adopted as the processor.
  • a plurality of electronic circuits may be integrated on one chip, or may be distributed on a plurality of chips. The plurality of chips may be integrated in one device, or may be distributed in a plurality of devices.
  • the computer system referred to here includes a microprocessor having one or more processors and one or more memories. Therefore, the microprocessor is also composed of one or a plurality of electronic circuits including a semiconductor integrated circuit or a large-scale integrated circuit.
  • the process control system 100 it is not an essential configuration for the process control system 100 that a plurality of functions in the process control system 100 are integrated in one server. That is, the components of the process control system 100 may be distributed to a plurality of servers. Further, at least a part of the functions of the process control system 100 may be realized by a cloud (cloud computing) or the like, and a first computer system including one or more processors as hardware and a memory as a main configuration is provided. It may be realized by the sensor 1, the second sensor 2, the repeater 20, the third sensor 3, and the gateway 4.
  • At least a part of the process control system 100 is not limited to the mode realized by the server, and may be realized by installing it as an application on the terminal 5.
  • the embodiment is not limited to the mode in which the person B1 is distinguished by the identifiers of the first sensor 1 and the second sensor 2, but the human body communication using the person B1 as a transmission medium, the identification tag possessed by the person B1, and the like. May be used to distinguish the person B1.
  • the second sensor 2 is not limited to a mode in which a predetermined motion is detected by detecting the movement of the jig C1, but a predetermined motion is detected by detecting the movement of the person B1 who uses the jig C1. It may be an aspect of detecting an operation. For example, in the workbench A11, it is assumed that there is a space in which a part of the person B1 invades only when the person B1 uses the jig C1. In this case, the second sensor 2 can detect a predetermined motion by the person B1 using the jig C1 by detecting the presence or absence of an object (arm of the person B1 or the like) in this space. As described above, it is desirable that a predetermined operation is detected as a specific work or operation in the process of the work, but it may be detected as a specific operation performed separately from such a specific work or operation.
  • the time stamp associated with the detection result of the first sensor 1 is not limited to the gateway 4, and may be attached by the first sensor 1 or the first communication unit 10. That is, the time stamp may be given when the first communication unit 10 acquires the detection result of the first sensor 1, or is given to the detection result when the first sensor 1 detects the presence or absence of the person B1. May be done.
  • the time stamp associated with the detection result of 2 of the second sensor is not limited to the gateway 4, and may be attached by the second sensor 2, the repeater 20, or the first communication unit 10. That is, the time stamp may be given when the first communication unit 10 acquires the detection result of the second sensor 2, or may be given to the detection result when the second sensor 2 detects the operation.
  • the time stamp associated with the detection result of the third sensor 3 is not limited to the gateway 4, and may be attached by the third sensor 3 or the first communication unit 10. That is, the time stamp may be given when the first communication unit 10 acquires the detection result of the third sensor 3, or is given to the detection result when the third sensor 3 detects the work status. May be good.
  • the first acquisition unit 101 may acquire the staying time and the leaving time of the person B1 from the first sensor 1 without acquiring the time stamp.
  • the staying time and the leaving time of the person B1 may be obtained by the first sensor 1 or the gateway 4.
  • the second acquisition unit 102 may acquire the time required for a predetermined operation from the second sensor 2 without acquiring the time stamp.
  • the time required for the predetermined operation may be obtained by the second sensor 2, the repeater 20, or the gateway 4.
  • the first sensor 1 is not limited to a configuration in which the light emitting unit and the light receiving unit are integrated, and may be configured in which the light emitting unit and the light receiving unit are housed in different housings. Further, the first sensor 1 is not limited to a configuration in which the reflected light is detected by the light receiving unit, and is a so-called transmissive type in which the presence of the person B1 is detected when the light projected by the light emitting unit is detected to be blocked. It may be a photoelectric sensor of.
  • the first sensor 1 may transmit the detection result to the gateway 4 by wire communication.
  • the second sensor 2 may transmit the detection result to the gateway 4 by wire communication.
  • the image pickup apparatus 6 may transmit the captured image (moving image) and the information stored in the second storage unit 15 to the gateway 4 by wire communication.
  • the second sensor 2 may have a wireless communication module that performs wireless communication with the gateway 4.
  • the second sensor 2 can transmit the detection result to the gateway 4 without going through the repeater 20. Therefore, in this aspect, the repeater 20 is unnecessary.
  • the number of gateways 4 is not limited to one, and may be a plurality of gateways 4.
  • the communication load can be distributed by a plurality of gateways 4.
  • each of the first sensor 1, the second sensor 2, and the third sensor 3 wirelessly communicates with the first communication unit 10 of the process control system 100 via the network N1 without going through the gateway 4. It may be in the mode of In this aspect, the gateway 4 is unnecessary.
  • the processing unit 11 can acquire the work information. Therefore, in the above-described embodiment, the third sensor 3 does not have to be installed in the facility.
  • the jig C1 is not limited to the toggle clamp, and may be used by a person B1 for each work.
  • the jig C1 may be an electric screwdriver or the like.
  • the second sensor 2 may be in a mode of detecting whether or not the jig C1 is in an operating state by detecting the magnitude of the current flowing through the jig C1.
  • the second sensor 2 is a current sensor such as a current transformer, and is attached to the power cable of the jig C1 to detect the current flowing through the jig C1.
  • the output unit 104 displays the graph G1 in a form in which the data whose working time is equal to or longer than the threshold time and the data whose working time is less than the threshold time can be visually distinguished. It may be displayed on the unit 50.
  • the output unit 104 may display the former data with black circles and the latter data with light blue circles on the display unit 50.
  • the graph G1 is drawn as a two-dimensional image in which the vertical axis is the working time and the horizontal axis is the time, but the graph G1 is not limited to this.
  • the graph G1 may be drawn as a three-dimensional or higher image including one or more other parameters in addition to the working time and time.
  • the image pickup apparatus 6 may track and image the person B1 existing in the work area A1.
  • the process control system 100 is realized by the image pickup device 6 and one processing device, but the process control system 100 is not limited to this.
  • the process control system 100 includes a first processing device including a first communication unit 10, a processing unit 11, and a first storage unit 12, a second communication unit 13, a linking unit 14, and a second storage unit 15. It may be composed of the second processing apparatus provided. That is, the image pickup apparatus 6 does not have to have the second communication unit 13, the linking unit 14, and the second storage unit 15.
  • the first communication unit 10 and the second communication unit 13 may be capable of bidirectional communication via the network N1.
  • the process control method may include at least a working time acquisition step ST1, an image acquisition step ST2, and a linking step ST3. Therefore, the process control system 100 may include at least a second communication unit 13 (working time acquisition unit 131 and image acquisition unit 132) and a linking unit 14. Therefore, the first communication unit 10, the processing unit 11, the first storage unit 12, and the second storage unit 15 do not have to be included in the components of the process control system 100.
  • the process control method includes a work time acquisition step (ST1), an image acquisition step (ST2), and a linking step (ST3).
  • the work time acquisition step (ST1) is a step of acquiring work time information related to the work time in which the person (B1) is performing the work to be executed including a predetermined operation in the work area (A1).
  • the image acquisition step (ST2) is a step of acquiring image information about an image including at least a work area (A1) captured by the image pickup apparatus (6).
  • the linking step (ST3) is a step of linking the work time information acquired in the work time acquisition step (ST1) and the image information acquired in the image acquisition step (ST2) as linking information.
  • the linking step (ST3) in the first aspect, in the linking step (ST3), the work time information satisfying a predetermined condition and the image information are linked.
  • the predetermined condition includes that the working time is equal to or longer than the threshold time.
  • the predetermined condition includes that the working time is within the set time set.
  • the set time is set based on the representative value of the working time in the time zone specified in advance.
  • the set time can be automatically set according to the request of the administrator without the administrator setting the set time.
  • the process control method further includes a display step (ST4) and a regeneration step (ST5) in any one of the first to fifth aspects.
  • the display step (ST4) is a step of displaying the work time information as a graph (G1) visually displayed on the display unit (50).
  • the reproduction step (ST5) is a step of reproducing the image information associated with the selected work time information on the display unit (50) when the work time information is selected in the graph (G1).
  • the graph (G1) is drawn as a two-dimensional or higher image including at least the working time and the time when the working time is acquired.
  • the display step (ST4) two or more working time information is displayed as a graph.
  • the reproduction step (ST5) when a plurality of work time information is selected from two or more work time information in the graph (G1), a plurality of image information linked to each of the selected plurality of work time information is displayed. Playback is performed on the display unit (50).
  • the process control method further includes an adjustment step in any of the sixth to eighth aspects.
  • the adjustment step is a step of adjusting the reproduction time of the image information to be reproduced in the reproduction step (ST5) according to the input.
  • the process control method further includes a synchronization step in any one of the first to ninth aspects.
  • the synchronization step is a step of synchronizing the work time acquisition step (ST1) and the image acquisition step (ST2).
  • the program according to the eleventh aspect causes one or more processors to execute the process control method of any one of the first to tenth aspects.
  • the process control system (100) includes a work time acquisition unit (131), an image acquisition unit (132), and a linking unit (14).
  • the work time acquisition unit (131) acquires work time information regarding the work time in which the person (B1) is performing the work to be executed including a predetermined operation in the work area (A1).
  • the image acquisition unit (132) acquires image information regarding an image including at least a work area (A1) captured by the image pickup apparatus (6).
  • the linking unit (14) links the work time information acquired by the work time acquisition unit (131) with the image information acquired by the image acquisition unit (132) as link information.
  • the process control system (100) further includes a first acquisition unit (101), a second acquisition unit (102), and a processing unit (11) in the twelfth aspect.
  • the first acquisition unit (101) acquires the first time information regarding the time when the person (B1) exists in the work area (A1).
  • the second acquisition unit (102) acquires the second time information regarding the operation time during which the person (B1) is performing a predetermined operation in the work area (A1).
  • the processing unit (11) acquires work information related to the work based on the first time information and the second time information.
  • the methods according to the second to tenth aspects are not essential methods for the process control method and can be omitted as appropriate. Further, the configuration according to the thirteenth aspect is not an essential configuration for the process control system (100) and can be omitted as appropriate.
  • Process control system 101 1st acquisition unit 102 2nd acquisition unit 11 Processing unit 131 Working time acquisition unit 132 Image acquisition unit 14 Linking unit 50 Display unit A1 Work area B1 person G1 Graph ST1 Working time acquisition step ST2 Image acquisition step ST3 Linking step ST4 Display step ST5 Playback step

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JP2018073176A (ja) * 2016-10-31 2018-05-10 株式会社リコー 画像処理装置、画像処理システム、画像処理方法およびプログラム
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