JP2014199637A - Supportive protection system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the occurrence probability of an accident that occurs due to a protection measure dependent on a person.SOLUTION: A supportive protection system in an integrated production system in which a plurality of machines cooperatively operate to execute a series of operations includes an information processor which specifies an operation mode settable in a machine that executes an operation on the basis of the operation registered in a registration device for receiving from an operator registration of the operation to be executed to any of the plurality of machines.

Description

  The present invention relates to a supportive protection system.

  In order to ensure the safety of workers at the manufacturing site, it is obliged to reduce the risk to an acceptable level. For example, for single machines such as presses and robots, ISO / IEC Guide 51: 1999 (Safety Aspect—Introduction Guidelines for Standards), which is a guideline of international standards, can reduce the risk to an acceptable level. Mandatory.

  By the way, in many manufacturing sites, an integrated manufacturing system (Integrated Manufacturing System: IMS) in which a plurality of machines and facilities are combined and coordinated is common. For the integrated production system, there is ISO11161 which is an international safety standard. Based on risk assessment, ISO 11161 is based on risk assessment, and the integrated production system that is shielded by fences and guards is considered a dangerous area, considering the movable range of the machine and the action range of the worker. Divide the danger area as a work area in consideration of intervention. Safety is ensured by not starting the machines in the associated work area if there are workers.

  However, in reality, unsteady operations such as adjustment, trouble processing, maintenance / inspection / repair, and cleaning performed while entering the movable range of the machine occur. In this case, an “in-process” tag is set up at the entrance of the integrated production system, but an accident may occur due to neglect of safety ensuring operations such as forgetting to set up the tag. For example, an operator outside the dangerous area could not visually recognize the worker inside the dangerous area, so that the integrated production system was erroneously activated, and the worker inside the dangerous area was injured.

  Human errors such as those mentioned above are mistakes (errors that occur during the action planning and judgment stages), slips (errors that occur during the action execution stage, which are related to diminished attention and confusion), and lapses (behavior). Of errors that occur during the execution stage of). Of these, in order to prevent mistakes, acquisition of appropriate knowledge through thorough education prior to work execution is fundamental. However, in order to prevent slipping and lapse, it is necessary to establish safety measures that do not depend only on human attention.

  Therefore, supportive protection devices have been studied for the purpose of establishing safety measures that do not depend only on human attention (for example, Non-Patent Documents 1 and 2). Here, the supportive protection device is a device for reducing as much as possible the probability of a dangerous-side error due to a human error or the like in the action execution stage, among the protection measures performed by the user in the field.

Masaya Norikane, Takafumi Fukuda, Research on ensuring the safety of integrated production systems -Examination of supportive protective devices based on risk assessment-, Japan Society of Mechanical Engineers, Industrial, Scientific Machinery and Safety Division Research Presentation Lecture 2012 Proceedings p. 13 Masaya Norikane, Takafumi Fukuda, Research on ensuring safety of integrated production systems-Items to be considered in risk assessment and their practices-, Proc. Of the 45th Safety Engineering Research Conference 2012 p. 36-66

  By the way, in addition to the above-described human error, “intentional unsafe behavior” that the operator dares to take while knowing that the behavior deviates from the rule increases the possibility of a serious disaster occurring.

  Accordingly, an object of the present invention is to provide a supportive protection system that reduces the probability of a disaster occurring due to a person-dependent protection policy.

  A supportive protection system according to the present invention is a supportive protection system in an integrated production system in which a plurality of machines operate in a coordinated manner to perform a series of operations, and is performed on any of the plurality of machines. An information processing device that identifies an operation mode that can be set for a machine on which the work is performed based on the work registered in the registration device that accepts the registration of the work from the worker.

  In the above configuration, the information processing device identifies work that the worker can perform on each of the plurality of machines based on at least one of the qualification and authority of the worker, and the registration device includes: You may receive registration of the work which the said worker implements from the specified said work which can be performed.

  In addition, the integrated production system is configured based on an operation mode that is specified by the information processing apparatus and that can be set for a machine that performs the work, and an operation mode that is actually set for the machine. An operation restriction device that permits or disallows operation of the machine in the operation mode may be provided.

  In the above configuration, the supportive protection system is provided in a work area where one or more of the plurality of machines are installed, and an identification information acquisition device that acquires information for identifying a worker who enters the work area And a detection device that is provided in the work area and detects the number of workers entering the work area, and the information processing device is installed in the work area where the machine on which the work is performed is arranged Whether to approve the operation of the machine on which the work is performed may be determined based on the information from the identification information acquisition device and the detection device.

  In the above configuration, whether or not the information processing apparatus approves the operation of the machine on which the work is performed based on the work information registered in the registration apparatus and the information from the identification information acquisition apparatus. May be determined.

  In the above configuration, the operation restriction device may allow or disallow operation of the machine in the set operation mode based on the result of the approval.

  In the above configuration, the information processing apparatus determines whether or not to approve the integrated production system to operate in a predetermined operation mode based on whether or not an operator exists in the work area. Also good.

  In the above configuration, the operation restriction device may permit or disallow operation of the integrated production system in the predetermined operation mode based on the result of the approval.

  In the above configuration, the integrated production system can set an operation mode for each work area, and reports an operation mode set inside or outside the work area based on information from the information processing apparatus. You may provide the information device to do.

  In the above configuration, the notification device may include at least one of a vibration device, a lighting device, a display device, and an audio output device.

  In the above configuration, the information processing apparatus includes a first storage unit that stores at least one of the qualifications and authorities possessed by the worker, predetermined work, and qualifications and authority necessary for performing the predetermined work. And a second storage unit that stores at least one of them in association with each other.

  According to the supportive protection system of the present invention, it is possible to reduce the probability of occurrence of a disaster caused by a person-dependent protection policy.

FIG. 1 is a top view illustrating an example of a configuration of an integrated production system and a supportive protection system according to an embodiment. FIG. 2 is a block diagram illustrating an example of a configuration of an integrated production system and a supportive protection system according to an embodiment. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus. FIG. 4 is a functional block diagram illustrating an example of means for realizing the functions of the information processing apparatus. FIG. 5 is a diagram illustrating an example of the worker information table. FIG. 6 is a diagram illustrating an example of the work execution condition table. FIG. 7 is a flowchart showing a series of actions of the worker according to the execution of the work. FIG. 8 is a sequence diagram illustrating an example of processing executed by the integrated production system and the supportive protection system when the worker registers the work. 9A to 9C are diagrams illustrating an example of a work registration screen. 10A and 10B are diagrams for explaining the processing of FIG. FIG. 11 is a sequence diagram illustrating an example of processing performed by the integrated production system and the supportive protection system when the worker enters the work area. FIG. 12 is a diagram for explaining the processing of FIG. FIG. 13 is a sequence diagram illustrating an example of processing executed by the integrated production system and the supportive protection system when an operator performs work. FIG. 14 is a sequence diagram illustrating an example of processing executed by the integrated production system and the supportive protection system when the worker leaves the work area. FIG. 15 is a sequence diagram illustrating an example of processing executed by the integrated production system and the supportive protection system when an operator registers completion of work. FIGS. 16A and 16B are diagrams for explaining the processing of FIG. 15.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a top view illustrating an example of a configuration of an integrated production system 1000 and a supportive protection system 2000 according to the embodiment. FIG. 2 is a block diagram illustrating an example of the configuration of the integrated production system 1000 and the supportive protection system 2000.

(Integrated production system 1000)
First, the integrated production system 1000 will be described. As shown in FIGS. 1 and 2, the integrated production system 1000 includes a belt conveyor Z13, a transfer robot Z14, a press machine Z15, a transfer robot Z23, a press machine Z24, a transfer robot Z25, a press machine Z33, a transfer robot Z34, and a belt. A conveyor Z35 is provided.

  In the present embodiment, each of the machines described above has operation modes of “manual operation / inching”, “semi-automatic operation”, “automatic operation”, and “off (energy interruption)”. The operator can manually operate the machine in which the “manual operation / inching” mode is set by using the operation member. In addition, a machine in which the “automatic operation” mode is set automatically performs a predetermined operation. A machine in which the “semi-automatic operation” mode is set automatically executes a part of the operation executed in the “automatic operation mode”, and the other is operated by an operator's operation. Since the machine in which the “OFF (energy cut)” mode is set is not supplied with power, the machine does not operate even if the operator operates the operation member.

  In the integrated production system 1000 of the present embodiment, a series of operations can be performed by the above-described machines operating in cooperation. Specifically, when the integrated production system 1000 in which the “automatic operation mode” is set as the operation mode starts automatic operation, the above-described machines operate in cooperation and execute a series of operations. The integrated production system 1000 has a “maintenance mode” as an operation mode in addition to the “automatic operation mode”. The “maintenance mode” is an operation mode in which the operation of each machine can be controlled for each work area (task zone) described later.

  Here, the operation of each machine when the integrated production system 1000 in which the “automatic operation mode” is set starts the automatic operation will be described with reference to FIG.

  When the integrated production system 1000 starts automatic operation, first, the material supply device S10 supplies the material M10 to the belt conveyor Z13. Next, the transport robot Z14 grips the material M10 transported by the belt conveyor Z13 and supplies the material M10 to the press machine Z15 (see the broken line arrow A10). The press machine Z15 processes the supplied material M10.

  Next, the transfer robot Z23 grips the workpiece W10 processed by the press machine Z15 and supplies the workpiece W10 to the press machine Z24 (see broken line arrow A20). The press machine Z24 processes the supplied workpiece W10.

  Next, the transfer robot Z25 grips the workpiece W20 processed by the press machine Z24 and supplies it to the press machine Z33 (see broken line arrow A30). The press machine Z33 processes the supplied workpiece W20 to produce a product P10.

  The transport robot Z34 grips the finished product P10 and moves it to the belt conveyor Z35. The product P10 conveyed by the belt conveyor Z35 is collected on the pallet P20.

  Thus, in the integrated production system 1000 of the present embodiment, when the integrated production system 1000 starts automatic operation, the belt conveyor, the press machine, and the transport robot operate in cooperation to manufacture the product P10.

  Returning to FIG. 1, the integrated production system 1000 includes a fixed guard G10. This is to prevent an operator or the like from entering the movable range of each machine from the outside during the automatic operation of the integrated production system 1000 described above. Here, a “fixed guard” is a guard attached in such a way that it can be removed by using a tool or by breaking the attachment means.

  The fixed guard G10 includes an interlocking door D10 that is used when an operator enters and leaves the area inside the fixed guard G10. As shown in FIG. 1, the area within the fixed guard G10 is divided into work areas 1 to 3, and the work areas 1 to 3 consider the productivity and the viewpoint of ensuring the safety of workers. Is set.

  One or more machines are arranged in each work area. In this embodiment, as shown in FIG. 1, a belt conveyor Z13, a transfer robot Z14, and a press machine Z15 are arranged in the work area 1, and a transfer robot Z23, a press machine Z24, and a transfer robot Z25 are arranged in the work area 2. In the work area 3, a press machine Z33, a transfer robot Z34, and a belt conveyor Z35 are arranged.

  Light-type safety devices Z12, Z22, and Z32 are installed at the entrances and exits of the work areas 1 to 3, respectively. The light beam safety devices Z12, Z22, and Z32 are, for example, light curtains, and detect the passage of the worker at the entrance / exit of each work area.

  In the work areas 1 to 3, key boxes Z11, Z21, and Z31 for changing the operation mode for each work area are installed. In the present embodiment, it is assumed that “automatic operation mode”, “maintenance mode”, and “stop mode” are provided as operation modes of the work area.

  The “automatic operation mode” is an operation mode for executing a series of operations by operating the machines in the work area in a coordinated manner. For example, if the “automatic operation mode” is set in the work area 1, the belt conveyor Z13, the transfer robot Z14, and the press machine Z15 operate in cooperation to produce the workpiece W10.

  The “maintenance mode” is an operation mode in which the machine in the work area can be operated alone. The “stop mode” is an operation mode in which power supply to the machines in the work area is stopped.

  In the work areas 1 to 3, notification devices Z18, Z28, and Z38 for notifying the operation mode of each work area are further installed. The notification devices Z18, Z28, and Z38 are, for example, LED (Laser Emitting Diode) lights, and light up in a color according to the operation mode of the work area under the control of a general-purpose PLC 70 described later.

  For example, when the operation mode of the work area is “automatic operation mode”, the notification devices Z18, Z28, Z38 are lit in blue, when in the “maintenance mode”, they are lit in yellow, and in the “stop mode”. Lights red. In addition, when the worker in the work area is operating automatically and the operator enters the work area and makes an emergency stop, the notification devices Z18, Z28, and Z38 flash in red. As a result, the operator can visually recognize the operation mode of each work area from the outside of the work area, so that the operator mistakenly recognizes the operation mode of the work area, enters the work area, contacts the machine, etc. Can be prevented. For example, it is assumed that “maintenance mode” is set as the operation mode of the work area. In this case, because the machine is not operating, the operator mistakenly determines that “OFF (energy cut) is set” and enters the work area and makes contact with the machine under maintenance. It is possible to prevent injuries and the like.

  The integrated production system 1000 further includes a general panel 60 arranged outside the fixed guard G10, a safety PLC (Programmable Logic Controller) 50, a general-purpose PLC 70, and an interlock device 90 (not shown in FIG. 1). 2).

(Summary board 60)
The overall board 60 includes a display, an RFID reader, a touch panel that is assembled to the display and functions as an input device, and a control unit for controlling these components. The overall panel 60 also includes a key switch for switching the operation mode of the integrated production system 1000.

  The generalization board 60 is connected to the safety PLC 50 and the information processing device 80 included in the supportive protection system 2000 described later. The integrated panel 60 displays the current operation mode of the integrated production system 1000, the operation mode of each work area input from the safety PLC 50, and the operation mode of each machine on the display. Further, based on the information input from the information processing device 80, the generalization board 60 displays information on the worker who is performing work in each work area on the display.

  Further, when an unsteady operation occurs in the integrated production system 1000, the generalization board 60 acquires identification information of the worker who registers the work related to the unsteady operation by the RFID reader and transmits it to the information processing apparatus 80. To do. The summary board 60 receives from the information processing apparatus 80 a list of work that can be performed by the worker, extracted by the information processing apparatus 80 based on the transmitted identification information, and displays the list on the display.

  Further, the generalization board 60 receives registration of work performed by the worker from the worker via the touch panel, and transmits the registered work information to the information processing apparatus 80. Further, the generalization board 60 receives registration of work completion from the operator via the touch panel, and transmits information on the completed work to the information processing apparatus 80.

  In addition, the overall board 60 notifies the information processing apparatus 80 of switching of the operation mode of the integrated production system 1000 by a key switch and extraction of a key by an operator. Further, when the general panel 60 receives an operation for starting automatic production of the integrated production system 1000 from an operator, the generalization board 60 transmits the information to the safety PLC 50.

(Safety PLC50)
The safety PLC 50 includes, for example, a microprocessor. The safety PLC 50 is connected to machines (belt conveyor, transfer robot, press machine) arranged in the work areas 1 to 3, key boxes Z11, Z21, and Z31, and light beam safety devices Z12, Z22, and Z32. The safety PLC 50 is connected to the general panel 60, the information processing device 80, and the interlock device 90.

  The safety PLC 50 acquires information on the operation mode set for each machine from each machine, and transmits the information to the overall panel 60, the information processing device 80, and the interlock device 90. Further, the safety PLC 50 acquires information on the operation mode of each work area from the key boxes Z11, Z21, and Z31, and transmits the information to the general panel 60 and the information processing device 80. As described above, the overall panel 60 displays the operation mode of each work area and the operation mode of each machine on the display based on the information received from the safety PLC 50.

  In addition, the safety PLC 50 acquires the passing information of the worker at the entrance / exit of each work area from the light beam safety devices Z12, Z22, and Z32, and transmits the information to the information processing device 80.

  Further, the safety PLC 50 acquires information on the operation mode set in the integrated production system 1000 and an operation request for the integrated production system 1000 from the general control panel 60, and outputs them to the interlock device 90.

(Interlock device 90)
The interlock device 90 includes, for example, a logical operation circuit. The interlock device 90 is connected to the information processing device 80, the safety PLC 50, and the general-purpose PLC 70.

  The interlock device 90 collates the information input from the information processing device 80 with the information input from the safety PLC 50, and operates each machine in the set operation mode or automatically operates the integrated production system 1000. Whether or not to permit the operation, and outputs a signal to permit or disallow the operation to the general-purpose PLC 70.

(General-purpose PLC70)
The general-purpose PLC 70 includes, for example, a personal computer. The general-purpose PLC 70 is connected to machines (belt conveyors, transport robots, press machines) and notification devices Z18, Z28, Z38, an information processing device 80, and an interlock device 90 arranged in the work areas 1 to 3.

  The general-purpose PLC 70 receives a signal for permitting or not permitting the operation of each machine from the interlock device 90, and each machine (belt conveyor, transfer robot, press) on the basis of the contents of the signal (operation permission / no operation permission). Machine). Further, the general-purpose PLC 70 receives a signal for permitting or disallowing the operation of the integrated production system 1000 from the interlock device 90, and based on the content of the signal (operation permission / operation disapproval), the generalized PLC system 1000 as a whole. Control. Further, the general-purpose PLC 70 receives information on the operation mode of each work area from the information processing device 80, and lights the notification devices Z18, Z28, Z38 with a color corresponding to the operation mode based on the information.

(Supportive protection system 2000)
Next, the supportive protection system 2000 will be described. As shown in FIGS. 1 and 2, the supportive protection system 2000 includes RFID (Radio Frequency Identification) readers Z16, Z26, and Z36 and imaging devices Z17, Z27, Z37 is provided.

  The RFID readers Z16, Z26, and Z36 are for acquiring information (identification information) for identifying a worker, and are recorded on an ID (Identification) card carried by the worker who enters each work area. The identification information of the worker (ID number in this embodiment) is read.

  The imaging devices Z17, Z27, and Z37 are video cameras, for example, and take images of entrances and exits in each work area.

  The supportive protection system 2000 further includes a general-purpose PLC 40 and an information processing apparatus 80 (see FIG. 2) not shown in FIG.

(General-purpose PLC40)
The general-purpose PLC 40 includes, for example, a personal computer. The general-purpose PLC 40 is connected to the RFID readers Z16, Z26, Z36 and the imaging devices Z17, Z27, Z37 arranged in the work areas 1 to 3. The general-purpose PLC 40 is connected to the information processing device 80.

  The general-purpose PLC 40 acquires the identification information of the worker who entered the work area from the RFID readers Z16, Z26, Z36, and outputs it to the information processing device 80.

  Further, the general-purpose PLC 40 analyzes the images acquired from the imaging devices Z17, Z27, and Z37 using a known image recognition technique, and determines the number of workers entering or leaving each work area. get. Then, the general-purpose PLC 40 outputs the acquired information on the number of people to the information processing device 80.

(Information processing apparatus 80)
The information processing apparatus 80 includes a personal computer, for example. The information processing device 80 is connected to the general-purpose PLC 40, the general panel 60, the safety PLC 50, the general-purpose PLC 70, and the interlock device 90.

  The information processing device 80 receives the identification information registered in the RFID reader of the general panel 60 from the general panel 60 and can be implemented by the worker based on the qualifications and authority of the worker identified by the identification information. The work is extracted and transmitted to the general board 60.

  In addition, the information processing device 80 determines whether to approve the operation of each machine installed in the work areas 1 to 3 based on information input from the control panel 60, the safety PLC 50, and the general-purpose PLC 40. It is determined whether or not the automatic operation of the production system 1000 is approved, and the approval result is output to the interlock device 90. Details of the processing executed by the information processing apparatus 80 will be described later.

  Next, the hardware configuration of the information processing apparatus 80 will be described in detail with reference to FIG. As shown in FIG. 3, the information processing apparatus 80 includes an input / output unit 801, a ROM (Read Only Memory) 802, a central processing unit (CPU) 803, a RAM (Random Access Memory) 804, and an HDD (Hard). A disk drive (hard disk device) 805;

  The input / output unit 801 receives input of various types of information from the general-purpose PLC 40, the general panel 60, and the safety PLC 50. Further, the input / output unit 801 outputs to the interlock device 90 information indicating whether to approve the operation of each machine described above and whether to approve the automatic operation of the integrated production system 1000. Further, the input / output unit 801 outputs information on the operation mode set in each work area to the general-purpose PLC 70.

  The ROM 802 stores a program for extracting work that can be performed by the worker, a program for determining whether to approve the operation of each machine included in the integrated production system 1000, and the like. The CPU 803 reads and executes a program stored in the ROM 802. The RAM 804 stores temporary data used when executing the program. The functions of the information processing apparatus 80 shown in FIG. 4 are realized by calculation by the CPU 803 of the program stored in the ROM 802. The HDD 805 stores an operator information table, a work execution condition table, and a work management table (details will be described later).

  Next, an example of the function of the information processing apparatus 80 will be described with reference to FIG. FIG. 4 is a functional block diagram illustrating an example of means for realizing the functions of the information processing apparatus 80.

  The information processing apparatus 80 includes a storage unit 811, a work extraction unit 813, a work management unit 815, and a determination unit 817.

  The storage unit 811 is, for example, the HDD 805 and stores a worker information table, a work execution condition table, and a work management table. Here, the worker information table and the work execution condition table will be described. Details of the work management table will be described later.

  FIG. 5 is a diagram illustrating an example of the worker information table. As shown in FIG. 5, the worker information table includes items of ID number, name, holding qualification, and holding authority. In the item of ID number, an ID number (identification information) for uniquely identifying the worker is stored. The name field stores the name of the worker. Information on the qualifications possessed by the worker is stored in the possession qualification item. Information regarding the authority possessed by the worker is stored in the possession authority item.

  In the example of FIG. 5, for example, the worker with the ID number “R0001” has the qualifications “Completion of Education Course C” and “Completion of Special Course B”, and has no authority. On the other hand, the worker with ID number “R0004” has no qualification, but has “supervision authority” to supervise the work of other workers.

  FIG. 6 is a diagram illustrating an example of the work execution condition table. As shown in FIG. 6, the work execution condition table includes items of work area, machine, work, worker-necessary skill, permitted operation mode, and supervisor necessity.

  The item of work area represents a work area where the work is performed. The machine item represents a machine that is arranged in a work area and on which an operator performs work. The item of work represents work to be performed on a machine (in FIG. 6, a belt conveyor, a transfer robot, and a press machine) installed in the work area. In the example of FIG. 6, “adjustment”, “interlocking confirmation”, “production”, “maintenance”, and “cleaning” are registered as the operations to be performed on the belt conveyor arranged in the work area 1. The operation mode of the machine related to the work is specified by the item of the permitted operation mode described later.

  In the item of the skill required for the worker, qualifications required for the worker who performs each work are registered. In the permitted operation mode item, an operation mode that can be set in the machine when performing each operation is registered. Furthermore, information on whether or not a supervisor is necessary when performing each work is registered in the item of necessity of supervisor. For example, in FIG. 6, an operator who performs “adjustment” work on “belt conveyor” arranged in “work area 1” needs to complete “education course A”. Further, the operation mode of the belt conveyor at this time must be “manual operation / inching”, and the “adjustment” work requires a supervisor who supervises the work.

  Returning to FIG. 4, the work extraction unit 813 extracts work that can be performed by the worker. Specifically, the work extraction unit 813 receives the identification information of the worker who performs the work from the overall board 60. In addition, the work extraction unit 813 acquires the worker information table and the work execution condition table from the storage unit 811. The work extraction unit 813 acquires qualification and authority information held by the worker from the worker information table (see FIG. 5) based on the identification information (ID number) received from the overall board 60. Then, the work extraction unit 813 extracts work that can be performed within the scope of the acquired qualification and authority from the work execution condition table (see FIG. 6). The work extraction unit 813 outputs a list of extracted works to the overall board 60.

  The work management unit 815 updates the work management table stored in the storage unit 811 based on information input from the general panel 60, the general-purpose PLC 40, and the safety PLC 50. In addition, the work management unit 815 transmits information registered in the work management table to the overall board 60. Details of the work management table and details of the work management table update process will be described later.

  The determination unit 817 performs various determination processes (for details, based on information input from the general panel 60, the general-purpose PLC 40, and the safety PLC 50, and information registered in the work execution condition table and the work management table of the storage unit 811). (To be described later). The determination unit 817 determines, based on the determination result, whether to approve the operation of each machine installed in the work areas 1 to 3 or whether to approve the automatic operation of the integrated production system 1000, The approval result is output to the interlock device 90. In addition, the determination unit 817 outputs information on the operation mode of each work area input from the general panel 60 to the general-purpose PLC 70.

  Next, a description will be given of processing executed by the integrated production system 1000 and the supportive protection system 2000 when unsteady work is performed in the integrated production system 1000. FIG. First, a series of actions of a worker who performs unsteady work will be described. FIG. 7 is a flowchart showing a series of operations performed by an operator who performs unsteady work.

  As shown in FIG. 7, the worker first registers the work to be performed on the general panel 60 (step S501). When the work is registered, the worker enters the work area where the work is performed (step S503). Thereafter, the worker performs work in the work area (step S505). When the worker completes the work, the worker leaves the work area (step S507). The worker who has completed the work registers that the work has been completed in the overall panel 60 (step S509), and ends the unsteady work.

  Next, details of the processing performed by the operator and an example of processing executed by the integrated production system 1000 and the supportive protection system 2000 in each step shown in FIG. 7 will be described.

<At work registration: Step S501>
First, processing executed by the integrated production system 1000 and the supportive protection system 2000 when an operator registers a work will be described with reference to the sequence diagram of FIG.

  In FIG. 8, first, the operator switches the key of the key switch provided in the general panel 60 from “automatic operation mode” to “maintenance mode” (step S11). Then, the overall panel 60 notifies the information processing apparatus 80 that the operation mode of the integrated production system 1000 has been switched from the “automatic operation mode” to the “maintenance mode” (step S13).

  Subsequently, the worker holds his / her ID card over the RFID reader included in the overall board 60, and registers the worker's identification information (ID number in this embodiment) (step S15). The overall board 60 transmits the worker identification information to the information processing apparatus 80 (step S17).

  The information processing apparatus 80 that has received the identification information from the overall board 60 extracts work that can be performed by the worker (step S18). In the present embodiment, the work extraction unit 813 of the information processing apparatus 80 acquires the qualification and holding authority of the worker from the above-described worker information table (see FIG. 5) based on the identification information. Then, the work extraction unit 813 extracts work that can be performed within the scope of the qualification and authority held by the worker from the work execution condition table (see FIG. 6). The work extraction unit 813 transmits the extracted work list to the overall board 60 (step S19).

  The summary board 60 displays a list of work received from the information processing apparatus 80 on the display (step S20).

  Here, for example, when the ID number of the worker who performs the unsteady work is “R0001”, the work extraction unit 813 of the information processing device 80 holds the worker from the worker information table of FIG. Acquire information on qualifications "Completion of Education Course C" and "Completion of Special Course B". Then, based on the qualifications held by the worker, the work extraction unit 813 performs “type change”, “teaching”, “adjustment” of the transfer robot installed in the work area 1 in the work execution condition table of FIG. ”,“ Interlock confirmation ”,“ Production ”,“ Cleaning ”operations are extracted. Then, the work extracting unit 813 transmits these extracted works to the general panel 60 as work that can be performed by the worker. For example, as shown in FIG. 9A, the overall board 60 displays a list of operations on the display.

  For example, when the ID number of the worker who performs the unsteady work is “R0005”, the work extraction unit 813 includes the qualifications “Education class A completion”, “Education class C completion” and Get information on "Completion of Special Course B". The work extraction unit 813 extracts, for example, “adjustment”, “interlocking confirmation”, “production”, and “cleaning” work of the belt conveyor installed in the work area 1 based on the qualification held by the worker. To do. Also, the work extraction unit 813 extracts “transfer”, “teaching”, “adjustment”, “interlocking confirmation”, “production”, and “cleaning” of the transfer robot arranged in the work area 1 as work that can be performed. To do. The work extraction unit 813 transmits these extracted works to the overall board 60. For example, as shown in FIG. 9B, the overall board 60 displays a list of operations on the display.

  For example, when the ID number of the worker who performs the unsteady work is “R0004”, the work extraction unit 813 performs the work execution condition management table of FIG. 6 based on the “supervision” authority held by the worker. , The work in which “necessary” is registered in the supervision necessity item is extracted. In the example of FIG. 6, the information processing device 80 performs the “adjustment” operation of the belt conveyor installed in the work area 1, the “type change”, “teaching”, and “adjustment” operations of the transfer robot, and the press machine. Extract “mold change” and “adjustment” operations. The information processing apparatus 80 transmits these extracted operations to the general board 60. For example, as shown in FIG. 9C, the overall board 60 displays a list of operations on the display.

  As described above, in the integrated production system 1000 according to the present embodiment, with the support of the supportive protection system 2000, the worker can register only the work within the scope of the qualification and authority that the worker has. As a result, it is possible to prevent a situation in which an operator who does not have the qualification misunderstood that the qualification is not necessary and the work that requires the predetermined qualification is performed.

  Returning to FIG. 8, the worker selects the work to be performed by himself / herself from the work displayed on the display of the overall board 60 via the touch panel (step S <b> 21). The generalization board 60 transmits the selected work information to the information processing apparatus 80 (step S23). In the present embodiment, the general panel 60 displays the work area in which the work is performed, the machine in which the work is performed, the content of the work, and information on the worker performing the work (ID number in the present embodiment) in the information processing apparatus 80. Send to.

  The information processing apparatus 80 updates the work management table based on the work information received from the overall board 60 (step S25). In the present embodiment, the work management unit 815 of the information processing apparatus 80 updates the work management table stored in the storage unit 811. As a result, the work performed by the worker is registered in the information processing apparatus 80. Here, as shown in FIG. 10A, the work management table includes items of work area, machine, registered work, work registrant, entrance flag, exit flag, and work completion flag.

  The work area item represents a work area where the work is performed. The machine item represents the machine on which the operation is performed. The item of registration work represents work registered by the worker. The work registrant item stores information on the worker who registered the work (ID number in this embodiment).

  For example, it is assumed that the worker with the ID number “R0001” has registered the adjustment work of the transfer robot Z14 installed in the work area 1 in the general panel 60. In this case, the work management unit 815 of the information processing apparatus 80 registers “work area 1” in the work area item and “conveyance robot” in the “machine” item, as shown in FIG. Then, “Adjustment” is registered in the item of registered work, and “R0001” is registered in the item of work registrant. The contents registered in the entry flag, exit flag, and work completion flag items will be described later.

  When there are a plurality of workers who perform the work, the processes in steps S15 to S25 are repeated until each worker finishes the work registration.

  When the registration of the work is completed, the worker removes the key from the general panel 60 (step S27). When the operator switches the operation mode of the general panel 60 to the “maintenance mode” and removes the key from the general panel, the interlock of the interlock type door D10 is released, and the operator enters the fixed guard G10 from the door D10. (Step S28).

  The overall board 60 notifies the information processing apparatus 80 that the key has been removed (step S29). Using the notification as a trigger, the determination unit 817 of the information processing device 80 determines whether or not a supervisor is necessary and whether or not a supervisor is registered for the work registered in the work management table (step S31). Based on the determination result, the determination unit 817 determines whether to approve the operation of the machine on which the work is performed, and transmits the approval / non-approval determination result to the general panel 60 and the interlock device 90. (Steps S33 and S34).

  For example, in the work management table shown in FIG. 10A, the adjustment work of the transfer robot arranged in the work area 1 is registered. In this case, the determination unit 817 of the information processing apparatus 80 first determines whether or not “necessary” is registered in the item of supervisor necessity for the adjustment work of the transfer robot in the work execution condition management table of FIG. Determine. If “necessary” is registered in the item of necessity of supervisor, the determination unit 817 determines whether or not an operator having supervisor authority is registered for the work.

  In the table shown in FIG. 10A, only the worker of ID number “R0001” has registered the adjustment work of the transfer robot arranged in the work area 1, and the worker has supervision authority. It does not have (refer FIG. 5). In this case, the determination unit 817 determines that the supervisor is not registered for the work required by the supervisor, and transmits a signal not approving the operation of the transfer robot to the general panel 60 and the interlock device 90. On the other hand, in the table shown in FIG. 10B, in addition to the worker with ID number “R0001”, the worker with ID number “R0004” having supervisor authority (see FIG. 5) is arranged in work area 1. The adjustment work of the transfer robot is registered. Therefore, in this case, the determination unit 817 determines that the supervisor is registered for the work required by the supervisor, and transmits a signal for approving the operation of the transfer robot to the general panel 60 and the interlock device 90. .

  While the interlock device 90 receives a signal that does not approve the operation of the transfer robot (machine in which the work is performed) from the information processing device 80, the interlock device 90 can receive the operation request for the transfer robot from the safety PLC 50. Do not output a signal to permit driving.

  On the other hand, the overall board 60 displays the approval / non-approval determination result received from the information processing apparatus 80 on the display. Thereby, the worker can know whether or not the conditions (whether qualification / authority are required, whether the supervisor is necessary) to be satisfied at the stage of registering (planning) the work are satisfied for the work. For example, when a non-approved decision result is received from the information processing apparatus 80, the general panel 60 displays a message such as “Adjustment of the transfer robot in the work area 1 requires a supervisor”. May be displayed.

  As described above, in the integrated production system 1000 according to the present embodiment, with the support of the supportive protection system 2000, a worker who does not have a predetermined qualification tries to perform a work that requires a predetermined qualification, or the supervisor It is possible to prevent an erroneous work plan from being made, for example, there is no supervisor for the necessary work.

<When entering work area: Step S503>
Next, processing performed by the integrated production system 1000 and the supportive protection system 2000 when the worker enters the work area will be described with reference to the sequence diagram of FIG. Here, for convenience of explanation, a case where the worker enters the work area in order to perform the adjustment work of the transfer robot Z14 in the work area 1 will be described.

  In FIG. 11, the worker first registers the worker identification information (ID number) by holding the ID card over the RFID reader Z16 installed at the entrance / exit of the work area 1 (step S101). The RFID reader Z16 transmits the worker identification information to the general-purpose PLC 40 (step S103). The general-purpose PLC 40 transmits identification information to the information processing device 80 (step S105).

  Subsequently, the worker passes through the light beam safety device Z12 and enters the work area 1 (step S106). The passage information of the worker is transmitted from the light safety device Z12 to the safety PLC 50, and the safety PLC 50 notifies the information processing device 80 that the worker has passed the entrance / exit of the work area 1 (step S107). . At this time, the general-purpose PLC 40 analyzes the video imaged by the imaging device Z17, acquires the number of workers who entered the work area 1, and transmits it to the information processing device 80 (step S109).

  When the information processing device 80 receives the worker's passage notification from the safety PLC 50, the information processing device 80 executes an entry time determination process (step S111). In this embodiment, the determination unit 817 of the information processing apparatus 80 matches the number of workers who registered identification information in the RFID reader Z16 and the number of workers who entered the work area 1 received from the general-purpose PLC 40. Determine whether or not. As a result, it is possible to determine whether the user is accompanied or does not carry the operator's ID card.

  Based on the determination result, the information processing device 80 determines whether or not to approve the operation of the machine arranged in the work area 1 where the worker has entered, and transmits the determination result to the interlock device 90 (step S113). ). For example, the determination unit 817 of the information processing device 80 determines whether the number of workers who registered identification information in the RFID reader Z16 matches the number of workers who entered the work area 1 received from the general-purpose PLC 40. A signal is sent to the interlock device 90 to approve the operation of the machine on which work is performed in zone 1. On the other hand, the determination unit 817 transmits a signal not approving the operation of the machine to the interlock device 90 when the number of persons does not match.

  The interlock device 90 does not output a signal for permitting operation to the general-purpose PLC 70 even when a request for operation of the machine is received from the safety PLC 50 while receiving a signal not approving the operation of the machine from the information processing device 80. . As a result, the machine will not operate if the worker takes an intentional unsafe action such as sharing, or if the worker accidentally enters the work area without carrying the ID card, It is possible to reduce the probability of disasters caused by human-dependent protection measures.

  Note that the determination unit 817 may transmit the approval / non-approval determination result to the overall board 60, and the overall board 60 may display the information on a display. In addition, the determination unit 817 transmits the approval / non-approval determination result to the general-purpose PLC 70, and the general-purpose PLC 70 uses the Patrite (registered trademark) or the like included in each machine based on the result. You may make it alert | report a result.

  Subsequently, the information processing apparatus 80 updates the work management table based on the identification information received from the general-purpose PLC 40 (step S115). For example, the work management unit 815 of the information processing apparatus 80 sets the entry flag item of the work management table as shown in FIG. 12 if there is data that matches the work area where the worker entered and the identification information of the worker. Register “X” to indicate admission. If at least one of the work area and the identification information does not match, the work management unit 815 indicates that an operator who does not plan to perform work (has not registered work) has entered the work area. You may notify to general purpose PLC70. If the general-purpose PLC 70 sounds a buzzer using an alarm device (not shown) based on the notification, it is possible to prevent an operator who has not registered work in each work area from entering the work area. .

  Returning to FIG. 11, the worker who entered the work area holds the ID card over the RFID reader included in the key box Z11 of the work area 1 and registers the worker's identification information (step S117). The key box Z11 transmits the registered identification information to the safety PLC 50 (step S119), and the safety PLC 50 transmits the received identification information to the information processing device 80 (step S121).

  When the operator finishes registering the identification information, the operator switches the key of the key box Z11 from “automatic operation mode” to “maintenance mode” (step S123).

  The key box Z11 transmits information on the set operation mode to the safety PLC 50 (step S125). The safety PLC 50 notifies the information processing apparatus 80 that the operation mode has been switched from the “automatic operation mode” to the “maintenance mode” (step S127). Although not shown in FIG. 11, at this time, the safety PLC 50 displays the operation mode of the work area 1 on the display of the general panel 60, and therefore the information on the operation mode set in the key box Z <b> 11 is displayed. Send to. In addition, the information processing device 80 transmits information on the operation mode of the work area 1 to the general-purpose PLC 70. Based on the information, the general-purpose PLC 70 lights up the notification device Z18 with a color corresponding to the operation mode.

  The information processing apparatus 80 that has received the operation mode switching notification executes worker collation processing (step S128), and determines whether to approve the operation of the machine arranged in the work area 1. Then, the information processing device 80 transmits the approval / non-approval determination result to the interlock device 90 (step S129).

  In the present embodiment, the determination unit 817 of the information processing device 80 determines whether or not the worker who registered the identification information in the RFID reader included in the key box Z11 matches the worker who performs the work in the work area 1. The determination is made based on the work management table. For example, the determination unit 817 determines whether the ID number of the registered worker in the work area 1 and the identification information registered in the RFID reader of the key box Z11 all match in the work management table.

  The determination unit 817 determines the work area 1 when the two do not coincide with each other, or when the number of workers who registered the identification information in the key box Z11 is more or less than the number of workers registered in the work management table. A signal that does not approve the operation of the machine on which the work is performed is transmitted to the interlock device 90. On the other hand, when the worker who registered the identification information in the RFID reader included in the key box Z11 and the worker who works in the work area 1 all match, the determination unit 817 performs the work in the work area 1. A signal for approving the operation of the machine to be operated is transmitted to the interlock device 90.

  As described above, in the supportive protection system 2000 according to the present embodiment, unless the worker who has registered the work in the general panel 60 enters the work area, the operation of the machine in which the work is performed in the work area is not approved. It has become.

<When the work is performed: Step S505>
Next, an example of processing executed by the integrated production system 1000 and the supportive protection system 2000 when the worker performs work in the work area will be described with reference to the sequence diagram of FIG.

  In FIG. 13, the operator switches the operation mode of the machine that performs the work (here, it is assumed that it is the transfer robot Z14) (step S201). Then, the information on the operation mode set by the operator in the transfer robot Z14 is transmitted from the transfer robot Z14 to the safety PLC 50 (step S203). Based on the information on the operation mode, the safety PLC 50 notifies the information processing device 80 that the operation mode has been switched (step S205). Further, the safety PLC 50 requests the interlock device 90 to operate the transfer robot Z14 in the operation mode set by the operator (step S209).

  When the information processing device 80 receives the operation mode switching notification from the safety PLC 50, the information processing device 80 transmits information on operation modes that can be set to the transfer robot Z14 to the interlock device 90 (step S207). In the present embodiment, the determination unit 817 of the information processing device 80 uses the work execution condition table (see FIG. 12) to set the operation mode information that can be set for the adjustment work of the transfer robot Z14 registered in the work management table (see FIG. 12). 6) and is transmitted to the interlock device 90. In the adjustment work of the transfer robot Z14 in the work area 1, the determination unit 817 transmits the “manual operation / inching” mode to the interlock device 90 as an operation mode that can be set for the transfer robot Z14.

  The interlock device 90 determines whether or not the transport robot Z14 can be driven based on the operation mode information received from the information processing device 80 in step S207 and the operation mode requested from the safety PLC 50 in step S209 (step S213). ). Specifically, the interlock device 90 includes an operation mode (“manual operation / inching”) that can be set for the transfer robot Z14 received from the information processing device 80, and an operation mode of the transfer robot Z14 requested by the safety PLC 50. Is matched. If the two match and the operation of the transfer robot Z14 is approved in step S34 in FIG. 8, step S113 in FIG. 11, and step S129, the interlock device 90 requests the transfer robot Z14 from the safety PLC 50. A signal permitting operation in the operated mode is output to the general-purpose PLC 70 (step S215). The general-purpose PLC 70 controls the transport robot Z14 based on a signal that permits the operation.

  As described above, in the integrated production system 1000 according to the present embodiment, with the support of the supportive protection system 2000, the worker who registered the work in the general panel 60 enters the work area and performs the work on each machine. Unless the permitted operation mode is set for the machine, the machine does not operate and the work cannot be performed. This reduces the probability of a disaster by, for example, an operator who has not registered the work performing the work, or setting the wrong operation mode for the machine due to the operator's misunderstanding and operating the machine. be able to.

<When leaving work area: Step S507>
Next, an example of processing executed by the integrated production system 1000 and the supportive protection system 2000 when the worker completes the work and leaves the work area will be described with reference to the sequence diagram of FIG. Here, a case where an operator who has completed the adjustment work of the transfer robot Z14 in the work area 1 leaves the work area 1 will be described.

  In FIG. 14, the worker who has completed the work switches the key of the key box Z11 in the work area 1 from “maintenance mode” to “automatic operation mode” (step S301). Then, the operation mode information set in the key box Z11 is transmitted to the safety PLC 50 (step S303). Although not shown in FIG. 14, at this time, the safety PLC 50 displays the operation mode of the work area 1 on the display of the overall panel 60, and therefore information on the operation mode set in the key box Z <b> 11 is displayed. Send to.

  The safety PLC 50 notifies the information processing apparatus 80 that the operation mode has been switched (step S304). Although not shown in FIG. 14, the information processing device 80 notifies the general-purpose PLC 70 of the operation mode set in the work area. The general-purpose PLC 70 lights up the notification devices (Z18, Z28, Z38) with a color corresponding to the operation mode.

  The worker who has changed the operation mode of the work area 1 leaves the work area 1 through the light safety device Z12 (step S305). Based on the input from the light safety device Z12, the safety PLC 50 notifies the information processing device 80 that the worker has passed through the entrance / exit of the work area 1 (step S307). At this time, the general-purpose PLC 40 analyzes the video imaged by the imaging device Z17, acquires the number of workers who have left the work area 1, and transmits it to the information processing device 80 (step S309).

  When the information processing device 80 receives the passage information of the worker from the safety PLC 50, the information processing device 80 executes a leaving determination process (step S311). In the present embodiment, the determination unit 817 of the information processing apparatus 80 determines whether all workers who have entered the work area 1 have left the work area 1 or not. For example, the determination unit 817 determines whether or not the number of workers registered in the work area 1 in the work management table matches the number of workers who have left the work area 1 and acquired from the general-purpose PLC 40. To do. When unsteady work occurs for a plurality of machines, the timing of leaving the work area may vary depending on the worker. In this case, the determination unit 817 adds the number of persons acquired from the general-purpose PLC 40, and whether or not the total number of persons matches the number of workers registered in the corresponding work area in the work management table. Can be determined.

  Based on the determination result, the information processing apparatus 80 determines whether or not to authorize the integrated production system 1000 to operate in the automatic operation mode, and transmits the approval / non-approval determination result to the interlock apparatus 90 ( Step S313). In the present embodiment, when the determination unit 817 of the information processing device 80 determines that all workers who have entered the work area 1 have left the work area 1, a signal for approving the automatic operation of the integrated production system 1000. Is transmitted to the interlock device 90. In other cases, the information processing device 80 transmits a signal that does not approve the automatic operation of the integrated production system 1000 to the interlock device 90. While the interlock device 90 receives a signal from the information processing device 80 that does not approve the automatic operation of the integrated production system 1000, the interlock device 90 receives a request to start the automatic operation of the integrated production system 1000 from the safety PLC 50. A signal for permitting operation is not output to the general-purpose PLC 70. Thereby, it is possible to prevent the integrated production system 1000 from starting automatic operation in a state where an operator remains in the work area.

<At work completion registration: Step S509>
Next, an example of processing executed by the integrated production system 1000 and the supportive protection system 2000 when the worker registers completion of work will be described with reference to the sequence diagram of FIG.

  In FIG. 15, when the worker leaves the fixed guard G10, the operator holds the ID card over the RFID reader of the general panel 60 and registers the identification information (step S401). The generalization board 60 transmits the worker identification information to the information processing apparatus 80 (step S403).

  The work management unit 815 of the information processing device 80 that has received the identification information transmits the work information registered by the worker to the general panel 60 based on the information registered in the work management table (step S407). The overall board 60 displays the information of the work registered by the worker received from the information processing apparatus 80 on the display (step S409).

  The worker selects the work displayed on the display of the overall panel 60 via the touch panel, and registers the completion of the work (step S411). Information on the completed work is transmitted from the overall board 60 to the information processing apparatus 80 (step S413).

  The information processing apparatus 80 updates the work management table based on the information received from the overall board 60 (step S415). In the present embodiment, the work management unit 815 of the information processing device 80 registers “X” in the item of the exit flag of the worker who registered the work completion in the work management table, and “completed” in the item of the work completion flag. "Is registered (see FIG. 16A).

  The worker who has registered the completion of work inserts a key into the overall panel 60 and switches the operation mode of the integrated production system 1000 from “maintenance mode” to “automatic operation mode” (step S417). Then, switching of the operation mode is notified from the overall panel 60 to the information processing device 80 (step S419).

  When receiving the operation mode switching notification, the information processing apparatus 80 determines whether or not there is an operator in the work area (step S421). For example, the determination unit 817 of the information processing apparatus 80 determines whether “completed” is registered in the work completion flag item of all workers registered in the work management table. The determination unit 817 may determine whether or not “X” is registered in the item of the exit flag of all workers registered in the work management table. For example, in the example of FIG. 16A, since “X” is registered in the item of the exit flag of all workers, the determination unit 817 determines that there are no workers in the work area. On the other hand, in the example of FIG. 16B, since “X” is not registered in the item of the exit flag of the worker in the work area 2, the determination unit 817 determines that the worker exists in the work area.

  Based on the determination result, the information processing apparatus 80 determines whether to approve the automatic operation of the integrated production system 1000, and transmits an approval / non-approval determination result to the interlock apparatus 90 (step S423). In the present embodiment, the determination unit 817 of the information processing device 80 transmits a signal that approves the automatic operation of the integrated production system 1000 to the interlock device 90 when it is determined that there is no worker in the work area. . In other cases, the determination unit 817 transmits a signal that does not approve the automatic operation of the integrated production system 1000 to the interlock device 90.

  When the operator is ready to start the automatic operation of the integrated production system 1000, the operator performs an operation for starting the automatic operation on the integrated panel 60 (step S425). The overall panel 60 notifies the safety PLC 50 that the operation for starting the automatic production of the integrated production system 1000 has been executed (step S427). The safety PLC 50 requests the interlock device 90 to start the automatic operation of the integrated production system 1000 (step S429).

  In response to the request for starting automatic operation, the interlock device 90 determines whether to permit automatic operation of the integrated production system 1000 (step S431). Specifically, the interlock device 90 permits the automatic operation of the integrated production system based on the approval / non-approval signal input from the information processing device 80 in step S313 in FIG. 14 and step S423 in FIG. It is determined whether or not. More specifically, when the interlock device 90 receives a signal for approving the automatic operation of the integrated production system 1000 in step S313 of FIG. 14 and step S423 of FIG. Is output to the general-purpose PLC 70. As a result, the integrated production system 1000 starts automatic operation.

  As described above, in the integrated production system 1000 according to the present embodiment, the automatic operation of the integrated production system 1000 is started when there is a possibility that an operator may remain in the work area with the support of the supportive protection system 2000. I can't do it. Thereby, although the worker remains in the work area, automatic operation of the integrated production system 1000 is started due to misunderstanding or confirmation of other workers, and the worker remains in the work area. Accidents such as injury to workers who are injured can be prevented.

  As described above in detail, according to the present embodiment, the supportive protection system 2000 in the integrated production system 1000 in which a plurality of machines operate cooperatively and execute a series of operations is determined by the determination unit of the information processing device 80. 817 specifies an operation mode that can be set for the machine on which the work is performed based on the work registered by the operator in the general panel 60 that accepts the registration of the unsteady work, and outputs the operation mode to the interlock device 90. The interlock device 90 collates the settable operation mode input from the information processing device 80 with the operation mode actually set for the machine, and if both match, the operation mode in which the machine is set Is output to the general-purpose PLC 70. On the other hand, the interlock device 90 does not output a signal for permitting operation to the general-purpose PLC 70 when the two do not match. As a result, it is possible to prevent a situation in which a machine operates in an incorrect operation mode due to misunderstanding of an operator or an operation error and a disaster occurs.

  In addition, according to the present embodiment, the determination unit 817 of the information processing device 80 identifies the work that the worker can perform on each of the machines based on at least one of the qualification and authority that the worker has, The summary board 60 accepts registration of work performed by the worker from the work that can be performed. As a result, the worker can confirm the work that can be performed by himself / herself, and can prevent a situation in which work that is not permitted by the worker is registered or mistakenly performed due to misunderstanding or the like. . That is, it is possible to reduce the probability of occurrence of a disaster caused by a protection policy that depends on the memory of the worker.

  Further, according to the present embodiment, the RFID reader (Z16, Z26) that acquires the identification information of the worker who enters the work area is provided at the entrance of the work area (1-3) where one or more machines are installed. , Z36) and an imaging device (Z17, Z27, Z37) that captures images of workers entering and leaving the work area, and the general-purpose PLC 70 is arranged in the work area based on the images captured by the imaging device. Detect the number of workers entering. Then, the determination unit 817 of the information processing device 80 performs work based on the number of workers who registered identification information in the RFID reader and the number of workers who entered the work area acquired from the general-purpose PLC 70. It is determined whether to approve the operation of the machine, and a signal indicating approval / disapproval is output to the interlock device 90. The interlock device 90 does not permit the operation of the machine until the signal for approving the operation of the machine is received from the information processing apparatus 80. In this way, when the worker performs intentional unsafe behavior such as sharing, or when the worker enters the work area without carrying the ID card, the machine does not operate, It is possible to reduce the probability of occurrence of disasters caused by protection measures depending on people.

  In addition, according to the present embodiment, the information processing apparatus 80 operates the machine on which the work is performed based on the work content registered in the overall board 60 and the worker identification information acquired from the RFID reader. Is approved or not, and a signal indicating approval / non-approval is output to the interlock device 90. For example, if the worker who registered the identification information in the RFID reader is not registered in the work management table (see FIG. 10A, etc.), that is, the worker who has not registered the work entered the work area. In this case, the information processing apparatus 80 outputs a signal that does not approve the operation of the machine to the interlock apparatus 90. The interlock device 90 does not permit the operation of the machine until the signal for approving the operation of the machine is received from the information processing apparatus 80. Thereby, the probability that a disaster will occur can be reduced by an operator who has not registered the work performing the work.

  Further, according to the present embodiment, the determination unit 817 of the information processing device 80 determines whether or not to approve the automatic operation of the integrated production system 1000 based on whether or not an operator exists in the work area. Then, an approval / non-approval signal is output to the interlock device 90. The interlock device 90 does not permit the general-purpose PLC 70 to perform the automatic operation of the integrated production system 1000 until it receives a signal for approving the automatic operation of the integrated production system 1000 from the information processing device 80. Thereby, although the worker remains in the work area, automatic operation of the integrated production system 1000 is started due to misunderstanding or confirmation of other workers, and the worker remains in the work area. Accidents such as injury to workers who are injured can be prevented.

  Moreover, according to this embodiment, the integrated production system 1000 can set an operation mode for every work area, and the integrated production system 1000 notifies the operation mode set to each work area (Z18, Z28). , Z38). Thereby, the worker can visually recognize the operation mode of each work area. Therefore, it is possible to prevent the worker from being injured by entering the work area by mistakenly recognizing the operation mode of the work area and coming into contact with the machine. In addition, the integrated production system 1000 includes an operation panel set for each work area, an operation mode set for each machine, and an operation panel set for the integrated production system 1000 on the display. It has. For this reason, the operator can confirm the operation mode set inside and outside the work area by confirming the display of the general panel 60.

  In addition, according to the present embodiment, the storage unit 811 of the information processing device 80 includes the worker information table that stores the qualifications and authority possessed by the worker, each work, and the qualifications necessary for performing the work. Since the work execution condition table that stores the authority in association with each other is stored, the work that can be performed within the scope of the qualification and authority held by the worker can be presented to the worker.

  In the above-described embodiment, the work extraction unit 813 of the information processing device 80 uses the worker information table to store the qualification and authority information held by the worker from the identification information registered in the RFID reader of the overall board 60. However, it is not limited to this. For example, information on the qualification and authority held by the worker is registered in an ID card carried by the worker, and the work extraction unit 813 reads the qualification and authority read from the ID card by the RFID reader of the general panel 60. Based on the information, the work that can be performed by the worker may be specified.

  Further, in the above embodiment, the determination unit 817 of the information processing device 80 indicates that no worker remains in the work area when the worker leaves the work area (departure determination process: step in FIG. 14). S311) and when the operator changes the operation mode of the integrated production system 1000 in the overall panel 60 (work area worker presence determination process: step S421 in FIG. 15). However, the determination unit 817 may execute at least one of the exit time determination process and the in-work area worker presence determination process in order to confirm that no worker remains in the work area.

  In the above embodiment, the light safety device is arranged at the entrance of each work area to detect the passage of the worker's entrance. For example, a mat sensor or a laser scanner is used to enter the entrance of each work area. It is possible to detect the passage of the worker through the entrance.

  In the above embodiment, the identification information of the worker is acquired using the RFID reader. For example, the biological information (fingerprint, iris, vein, etc.) of the worker is acquired as identification information by the biometric authentication device. Also good. In this case, since the worker does not need to carry the ID card, the convenience of the worker is improved.

  In the above embodiment, the imaging devices Z17, Z27, and Z37 are video cameras. However, the imaging devices Z17, Z27, and Z37 may be stereo cameras or wide-angle cameras. A plurality of imaging devices Z17, Z27, and Z37 may be provided.

  Moreover, in the said embodiment, although alerting | reporting apparatus Z18, Z28, Z38 was LED light, it is not restricted to this. For example, the notification devices Z18, Z28, and Z38 may be vibration devices that are provided on the floor surface of each work area and notify the operation mode of the work area by vibration, or sound that is notified by sound such as a siren or a speaker. It may be an output device or a display device such as an electric bulletin board. Moreover, you may comprise alerting | reporting apparatus Z18, Z28, Z38 by these combination.

  In the above embodiment, the general-purpose PLC 40 acquires the face image of the worker who enters the work area from the images captured by the image capturing devices Z17, Z27, and Z37 using a known face recognition technology, and sends it to the information processing device 80. You may send it. In this case, the information processing apparatus 80 stores the identification information of the worker and the face image in association with each other in the storage unit 811, and the determination unit 817 registers the face image received from the general-purpose PLC 40 and the RFID reader. It is determined whether the identification information belongs to the same person. This makes it possible to determine what is called “spoofing” that uses another person's ID card to enter the work area. When the face image received from the general-purpose PLC 40 and the identification information registered in the RFID reader are not from the same person, the determination unit 817 sends a signal that does not approve the operation of the machine in the work area to the interlock device 90. May be sent to. In this way, when intentional unsafe actions such as "spoofing" are taken, the probability of a disaster occurring due to a person-dependent protection measure is reduced by not operating the machine in the work area. Can do.

  In addition, the configuration of the above-described embodiment may be improved as appropriate, and at least a part may be replaced with another component. Further, the configuration requirements that are not particularly limited with respect to the arrangement are not limited to the arrangement disclosed in the embodiment, and can be arranged at a position where the function can be achieved. For example, in the above embodiment, the interlock device 90 may be incorporated in the safety PLC 50.

  Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the specific embodiment, and various modifications, within the scope of the gist of the present invention described in the claims, It can be changed.

40 General-purpose PLC
50 Safety PLC
60 general board 70 general-purpose PLC
80 Information processing device 90 Interlock device Z13, Z35 Belt conveyor Z14, Z23, Z25, Z34 Transport robot Z15, Z24, Z33 Press machine Z16, Z26, Z36 RFID reader Z17, Z27, Z37 Imaging device Z18, Z28, Z38 Notification device 1000 Integrated production system 2000 Supportive protection system

Claims (11)

A supportive protection system in an integrated production system in which a plurality of machines operate in cooperation and perform a series of operations,
Information for specifying an operation mode that can be set for the machine on which the work is performed based on the work registered in the registration device that receives the registration of the work to be performed on any of the plurality of machines from the worker A supportive protection system comprising a processing device. The information processing apparatus identifies work that the worker can perform on each of the plurality of machines based on at least one of the qualification and authority of the worker,
The supportive protection system according to claim 1, wherein the registration device receives registration of work performed by the worker from the identified work that can be performed.   The integrated production system is configured based on an operation mode that is specified by the information processing apparatus and that can be set for a machine that performs the work, and an operation mode that is actually set for the machine. The assistive protection system according to claim 1, further comprising an operation restriction device that permits or disallows the operation of the machine. An identification information acquisition device that is provided in a work area where one or more machines among the plurality of machines are installed, and that acquires information for identifying a worker who enters the work area;
A detection device that is provided in the work area and detects the number of workers entering the work area;
The information processing device approves the operation of the machine on which the work is performed based on information from the identification information acquisition device and the detection device installed in a work area where the machine on which the work is performed is arranged. 4. The supportive protection system according to claim 3, wherein it is determined whether or not to do so.   The information processing apparatus determines whether to approve the operation of the machine on which the work is performed based on information on the work registered in the registration apparatus and information from the identification information acquisition apparatus. The supportive protection system according to claim 4.   6. The supportive protection system according to claim 4, wherein the operation restriction device permits or disallows the operation of the machine in the set operation mode based on the result of the approval.   The information processing apparatus determines whether or not to authorize the integrated production system to operate in a predetermined operation mode based on whether or not an operator exists in the work area. The supportive protection system according to any one of claims 4 to 6.   8. The supportive protection system according to claim 7, wherein the operation restriction device permits or disallows the operation in the predetermined operation mode of the integrated production system based on the result of the approval. The integrated production system can set an operation mode for each work area,
9. The supportive protection system according to claim 4, further comprising: a notification device that notifies a driving mode set inside and outside the work area based on information from the information processing device. .   10. The supportive protection system according to claim 9, wherein the notification device includes at least one of a vibration device, a lighting device, a display device, and an audio output device. The information processing apparatus includes:
A first storage unit for storing at least one of qualifications and authority possessed by the worker;
The supportive protection system according to claim 2, further comprising: a second storage unit that stores predetermined work and at least one of qualifications and authority necessary for performing the predetermined work in association with each other. .

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