WO2017056490A1 - Système de gestion et dispositif de gestion de travail - Google Patents

Système de gestion et dispositif de gestion de travail Download PDF

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Publication number
WO2017056490A1
WO2017056490A1 PCT/JP2016/004363 JP2016004363W WO2017056490A1 WO 2017056490 A1 WO2017056490 A1 WO 2017056490A1 JP 2016004363 W JP2016004363 W JP 2016004363W WO 2017056490 A1 WO2017056490 A1 WO 2017056490A1
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WO
WIPO (PCT)
Prior art keywords
unit
work
tool
power
communication unit
Prior art date
Application number
PCT/JP2016/004363
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English (en)
Japanese (ja)
Inventor
小林　浩治
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2017056490A1 publication Critical patent/WO2017056490A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention generally relates to a work management system and a management apparatus, and more particularly to a work management system and a management apparatus for managing work contents using a power tool.
  • the tightening position management system described in Patent Document 1 includes a torque wrench that is a tightening tool and a management device that manages tightening position information.
  • the torque wrench outputs the tightening torque when fastening parts are tightened to the management device by wireless communication. Further, the torque wrench specifies a tightening position when a tightening operation is performed based on signals output from the acceleration sensor, the gyro sensor, and the geomagnetic sensor, and manages the tightening position information indicating the tightening position. Output to.
  • the management device manages the received tightening position information and the tightening torque.
  • This invention aims at providing the work management system and management apparatus which can communicate reliably between each of several power tools and a management apparatus.
  • the work management system includes a management device and a plurality of power tools used in a specific work process.
  • the management device includes a first communication unit for communicating with the plurality of power tools, and a management unit for transmitting a monitoring signal from the first communication unit to all of the plurality of power tools.
  • Each of the plurality of power tools includes a second communication unit for communicating with the management device, and a response signal from the second communication unit to the management device when the second communication unit receives the monitoring signal.
  • a control unit for transmission.
  • the management unit cannot receive the response signal from at least one of the plurality of power tools after transmitting the monitoring signal, the management unit sends a work stop signal from the first communication unit to all of the plurality of power tools. Configured to send.
  • the management device according to one aspect of the present invention is used in the work management system described above.
  • FIG. 1 is a block diagram of a work management system according to an embodiment.
  • FIG. 2 is a system configuration diagram of the above work management system.
  • FIG. 3 is an explanatory view schematically showing an example of a power tool used in the work management system described above.
  • FIG. 4 is a flowchart showing the operation of the power tool used in the work management system of the above.
  • FIG. 5 is a flowchart showing the operation of the management apparatus used in the work management system described above.
  • FIG. 6 is a time chart for explaining the operation of the work management system.
  • the power tool that is the management target of the management device is an electric tool.
  • the work management system according to the present embodiment is used to manage the work content of a tightening work using an electric tool for performing a tightening work of a tightening part such as a bolt in each of a plurality of work processes.
  • the work site where this work management system is used is a work site (a factory, a construction site, etc.) where a worker performs a work using a power tool in accordance with a predetermined work process.
  • the construction site of a solar power generation facility is assumed.
  • the bases for installing the solar panel are arranged in a plurality of rows, and a plurality of solar panels are placed on the base in a state where the solar panel is placed on the base.
  • the work of tightening individual bolts is performed.
  • the number of solar panel used is tens of thousands to hundreds of thousands, and the number of bolts to be tightened is enormous.
  • a plurality of workers share the work, and each of the plurality of workers performs a screw tightening operation at a predetermined location using the electric tool.
  • the work process is determined.
  • the management device performs the work content of the tightening work (for example, the number of times of screw tightening work or the screw tightening work from each of the plurality of electric tools used in each work process.
  • the tightening torque is collected and accumulated.
  • the work management system 10 of the present embodiment includes a management device 1 and a plurality of electric tools 2 (2a to 2f) as shown in FIGS.
  • the number of power tools 2 is six, but the number of power tools 2 is not limited to six, and may be any number according to the work content.
  • the individual power tools are described as the power tools 2a, 2b, 2c, 2d, 2e, and 2f, and the power tool 2 is used when the description is common to the six power tools 2a to 2f. It describes.
  • the power tool that is the management target of the management device 1 is the electric tool 2.
  • the electric tool 2 is a power tool for a business operator used in, for example, a factory or a construction site.
  • the electric power tool 2 performs a work of fastening a work target (for example, a solar battery panel) to a member to be attached (for example, a gantry) with a plurality of tightening members (for example, screws or bolts) according to the design drawing or work instruction. Used for.
  • a work target for example, a solar battery panel
  • a member to be attached for example, a gantry
  • tightening members for example, screws or bolts
  • the electric power tool 2 is not limited to an electric impact driver, and may be an electric impact wrench, or an electric drill driver or an electric torque wrench that is not a type that gives an impact force. Further, the power tool is not limited to the electric tool 2.
  • the power tool may be, for example, a pneumatic power tool (for example, a driver or a nailing machine) driven by compressed air supplied from the pneumatic pump using a pneumatic pump as a power source, or hydraulic pressure using a hydraulic pump as a power source.
  • a hydraulic power tool driven by hydraulic pressure supplied from a power source may be used.
  • the electric power tool 2 includes a control unit 21, a communication unit (second communication unit) 22, a storage unit 23, an operation unit 24, a drive unit 25, a measurement unit 26, and a power supply unit. 27 and a display lamp 29.
  • the body 200 of the electric power tool 2 includes a cylindrical body portion 201 and a grip portion 202 that protrudes in the radial direction from the peripheral surface of the body portion 201.
  • An output shaft 253 protrudes from one end side in the axial direction of the body portion 201.
  • a socket 254 is provided on the output shaft 253.
  • the socket 254 is detachably attached with a tip tool 256 (for example, a driver bit or the like) that matches the tightening member to be worked.
  • a battery pack 203 is detachably attached to one end of the grip portion 202 (lower end in FIG. 3).
  • the battery pack 203 includes a resin case that houses the power supply unit 27.
  • the control unit 21 includes a microcomputer.
  • various functions with which the electric tool 2 is provided are implement
  • the circuit board 28 on which the circuits constituting the control unit 21 and the like are mounted is accommodated in the grip unit 202.
  • the communication unit 22 is a communication module that performs short-distance (about 10 m) wireless communication using a communication method that does not require a wireless license.
  • This type of communication system includes a communication system that conforms to the IEEE 802.15.1 standard standardized by the Institute of Electrical and Electronics Engineers (IEEE: “Electrical” and “Electronics” Engineers, Inc.).
  • the communication unit 22 performs wireless communication with the management apparatus 1 using this type of communication method.
  • a relay machine that relays communication between the communication unit 12 and the communication unit 22 may be used.
  • the storage unit 23 includes a ROM (Read Only Memory) and a RAM (Random Access Memory).
  • the storage unit 23 stores a control program executed by a microcomputer included in the control unit 21.
  • the storage unit 23 also includes information (tool type) such as identification information assigned to each power tool 2 and the type of each power tool 2 (for example, information including a manufacturer and a product number determined by the manufacturer). Information).
  • the operation unit 24 includes a trigger switch 241 provided in the grip unit 202.
  • a trigger switch 241 When the trigger switch 241 is operated, an operation signal having a magnitude proportional to the pull-in amount (operation amount) of the trigger switch 241 is input to the control unit 21.
  • the drive unit 25 includes a motor 251 and a drive circuit.
  • the drive circuit controls the rotation of the motor 251 in accordance with a control signal input from the control unit 21.
  • the rotation of the output shaft of the motor 251 is transmitted to the output shaft 253 via the impact mechanism 252.
  • the impact mechanism 252 is configured to decelerate the rotation of the output shaft of the motor 251 and transmit it to the output shaft 253.
  • the impact mechanism 252 is configured to apply a striking force to the output shaft 253 and screw a work target screw or bolt.
  • the motor 251 and the impact mechanism 252 are accommodated in the body portion 201.
  • the measuring unit 26 measures the tightening force of the tightening member by the driving unit 25.
  • the measuring unit 26 measures the torque applied to the output shaft 253 by the magnetostrictive torque sensor 255 attached to the output shaft 253, and obtains the tightening force from the measured value of the torque sensor 255.
  • the measuring unit 26 measures the number of times the impact mechanism 252 has hit the output shaft 253 by measuring the vibration generated by the hitting with a vibration sensor or detecting the hitting sound generated by the hitting with a microphone. Counting may be performed and the tightening force may be obtained from the counting result of the impact.
  • the power supply unit 27 is housed in the battery pack 203.
  • the power supply unit 27 includes a rechargeable battery. When the battery pack 203 removed from the grip 202 is connected to the charger, the rechargeable battery in the power supply unit 27 is charged.
  • the power supply unit 27 supplies power necessary for the operation to the electric circuit including the control unit 21 and the motor 251 with the power charged in the rechargeable battery.
  • the display lamp 29 is composed of a light emitting diode provided exposed on the surface of the body 200.
  • the display lamp 29 includes, for example, a blue light emitting diode and a red light emitting diode.
  • the management device 1 is a computer that is used by the field supervisor at the work site.
  • the management apparatus 1 may be a portable terminal (for example, a tablet computer, a smartphone, etc.) carried by the site supervisor, or a personal computer installed in a site office or the like.
  • the management device 1 includes a signal processing unit 11, a communication unit (first communication unit) 12, a storage unit 13, a display unit 14, and an operation unit 15.
  • a barcode reader 3 reading unit is connected to the management apparatus 1.
  • the signal processing unit 11 is constituted by a microcomputer, for example.
  • various functions for example, the function of the management unit 111 provided in the management device 1 are realized by the signal processing unit 11 executing the program stored in the storage unit 13.
  • the management unit 111 periodically or irregularly transmits a monitoring signal from the communication unit 12 to two or more power tools 2 used in the work process in each of the plurality of work processes.
  • the management unit 111 transmits a work stop signal to all of the two or more power tools 2 used in the work process.
  • the tool 2 is made unusable.
  • the storage unit 13 stores the number of power tools 2 used in the work process for each of the plurality of work processes.
  • the management unit 111 uses the number of registration requests signals received by the communication unit 12 before the start of the next work process (specific work process)
  • the number of units used corresponding to the next work process acquired from the storage unit 13 is equal to
  • the work permission signal is transmitted from the communication unit 12 to the power tool 2 that is the transmission source of the registration request signal, so that the power tool 2 can be used.
  • the management unit 111 does not transmit a work permission signal from the communication unit 12.
  • the power tool 2 is made unusable.
  • the start of the next work process is, for example, at the start of a day's work or when the work process is switched.
  • the communication unit 12 is a communication module that performs short-distance wireless communication using the same communication method as the communication unit 22 of the electric power tool 2.
  • the communication units 22 of the plurality of power tools 2 are registered as slaves in the communication unit 12 serving as a master, and wireless communication is performed between the communication unit 12 and the communication unit 22.
  • communication is performed between the management device 1 and the power tool 2 using a communication method compliant with the IEEE 802.15.1 standard, but communication is performed using another communication method. You may go.
  • the communication system between the management apparatus 1 and the electric tool 2 is not limited to wireless communication, and may be wired communication.
  • the storage unit 13 includes a ROM and a RAM, and an electrically rewritable nonvolatile memory such as an EEPROM (ElectricallyrErasable and Programmable ROM).
  • the storage unit 13 stores a program executed by the signal processing unit 11. Further, the storage unit 13 stores the number of power tools 2 used in each of the plurality of work processes for each work process.
  • the storage unit 13 may store, for each work process, the tool type of the electric power tool 2 used in each of the plurality of work processes and the number of used tools for each tool type. That is, the storage unit 13 may store the number of power tools 2 used for each tool type for each of a plurality of work processes.
  • the storage unit 13 also stores information on work contents collected from the power tool 2 used in the work process in the work process that has been performed.
  • the program executed by the signal processing unit 11 may be provided in a state written in a recording medium such as an optical disk, a hard disk, or a semiconductor memory, or through an electric communication line such as the Internet or a mobile communication network. May be provided.
  • the storage unit 13 may be a built-in memory or a memory card mounted in a card slot included in the computer.
  • the display unit 14 is a display such as a liquid crystal display or an OLED (Organic Light Emitting Diode) display. Display content of the display unit 14 is controlled by the signal processing unit 11.
  • OLED Organic Light Emitting Diode
  • the operation unit 15 is, for example, an electrostatic or pressure-sensitive touch panel provided on a display unit that constitutes the display unit 14. When the operation unit 15 is touched, an operation signal corresponding to the operation content is output from the operation unit 15 to the signal processing unit 11.
  • “touching” the operation unit 15 includes an operation of touching with a finger of a hand or an operation of touching with an input pen or the like.
  • the tip tool 256 driven by the drive unit 25 of the electric tool 2 includes various tools, and the tip tool 256 has a label 31 (medium) printed with a bar code representing a tool type attached thereto (see FIG. 3).
  • the tool type information recorded in the barcode is information including at least the type of tool (driver, socket, drill, etc.) and size, for example.
  • the signal processing unit 11 acquires information obtained by the barcode reader 3 reading the label 31 provided on the tip tool 256 from the barcode reader 3.
  • the barcode reader 3 is connected to the management device 1, but a barcode reading unit is realized by the camera built in the management device 1 and the application software incorporated in the management device 1. May be.
  • the reading unit is the barcode reader 3, but an RFID (Radio Frequency Identification) storing information indicating the tool type may be embedded in the tip tool 256.
  • RFID Radio Frequency Identification
  • the signal processing unit 11 obtains information on the tool type obtained by the reader device reading from the tip tool 256 from the reader device. Good.
  • the registration process in the management apparatus 1 will be described based on the flowchart of FIG.
  • the site supervisor operates the operation unit 15 of the management apparatus 1 at the start of a day or when the work process is switched, and selects a work process to be started from a plurality of work processes.
  • the operation mode is set to the registration mode (step S11 in FIG. 4).
  • the registration mode the power tool 2 used in the next work process is collected in the management device 1 in order to collect information indicating the work contents from the power tool 2 used in the next work process (selected work process). This is the operation mode to be associated (registered).
  • the signal processing unit 11 reads from the storage unit 13 the number of power tools 2 used in the work process (next work process) selected in step S11.
  • the signal processing unit 11 starts an internal timer and waits for reception of a registration request signal transmitted from the electric power tool 2 until a predetermined time T2 elapses after switching to the registration mode. During this time, when the communication unit 12 receives the registration request signal and the identification information transmitted from the power tool 2, the management unit 111 causes the storage unit 13 to store the identification information of the power tool 2 that has transmitted the registration request signal. (Step S12).
  • the monitoring device 1 waits for reception of a registration request signal from the power tool 2.
  • the management unit 111 Determines that the required number of power tools 2 have been registered. And the management part 111 determines the identification information received in the meantime, ie, the identification information memorize
  • the management part 111 transmits the work permission signal from the communication part 12 with respect to the electric tool 2 which has transmitted registration request information until the fixed time T2 passes after the start of registration mode (step) S14), the registration mode is terminated.
  • the electric power tool 2 that has transmitted the registration request information from the start of the registration mode until the predetermined time T2 elapses can be operated, and the electric tool 2 can be operated.
  • the management unit 111 receives a registration request signal.
  • a work permission signal may be transmitted to the power tool of the transmission source.
  • the management unit 111 transmits a work permission signal to the power tool 2 that has transmitted the registration request signal. Thereby, the management part 111 can be in the state which can use the electric tool 2 only when the appropriate electric tool 2 is used.
  • the management unit 111 determines that the required number of power tools 2 in the work process could not be registered. In this case, the management unit 111 does not transmit a work permission signal from the communication unit 12 to the power tool 2 that has transmitted the registration request information during the period from the start of the registration mode until the predetermined time T2 elapses. Exit registration mode. As a result, the electric power tool 2 that has transmitted the registration request information from the start of the registration mode until the predetermined time T2 elapses becomes inoperable, and the electric power tool 2 cannot be operated.
  • the operator who performs work under the supervision of the site supervisor or the supervisor of the site supervisor selects and selects the electric tool 2 to be used in the next work process in a state where the operation mode of the management apparatus 1 is set to the registration mode.
  • a process of registering the electric tool 2 in the management device 1 is performed. After the site supervisor or the operator removes the battery pack 203 from the power tool 2 (step S21), when the battery pack 203 is attached to the power tool 2 (step S22), the control unit 21 of the power tool 2 performs a reset operation.
  • step S24 If the trigger switch 241 is operated (Yes in step S24) between the time when the control unit 21 performs the reset operation and the predetermined time T1 elapses (No in step S23), the control unit 21 receives the registration request signal. And the identification information are transmitted from the communication unit 22 to the management apparatus 1 (step S25). At this time, the control unit 21 may notify that it is in a state of waiting for registration in the management device 1 by blinking, for example, a red light emitting display lamp 29. As a result, the registration request signal and the identification information are transmitted from the power tool 2 to the management device 1, and registration processing is performed in the management device 1.
  • the communication part 22 can receive the work permission signal from the management apparatus 1 after transmitting the registration request signal, for example, the power tool 2 turns off the red light emitting display lamp 29 and turns on the green light emitting display lamp 29. Informing that the registration process to the management device 1 has been completed.
  • Step S24 when a certain time T1 has elapsed since the time when the control unit 21 performed the reset operation (Yes in Step S23), the control unit 21 moves to the management device 1.
  • the normal operation is executed without performing the registration process.
  • the power tool 2 identifies the registration request signal to the management device 1. Send information and. And if the registration request signal of the same number as the number of use in the next work process is transmitted to the management apparatus 1, the management apparatus 1 will use the electric tool 2 which transmitted the registration request signal in the next work process. 2 is registered, and a work permission signal is transmitted to these power tools 2.
  • the power tool 2 that has transmitted the registration request signal can receive the work permission signal from the management device 1, the power tool 2 can be driven by the drive unit 25 according to the operation signal input from the trigger switch 241.
  • the display lamp 29 emitting green light is turned on.
  • the electric power tool 2 performs a driving operation by the driving unit 25 in accordance with an operation signal input from the trigger switch 241 and transmits information indicating the work content to the management device 1.
  • the drive unit 25 is not operated even if the trigger switch 241 is operated. At this time, for example, the electric power tool 2 turns on the display lamp 29 that emits red light to notify that it is in an unusable state.
  • FIG. 6 shows that when four power tools 2a, 2b, 2c, 2d are registered in the management apparatus 1 in a certain work process, the management apparatus 1 and the four power tools 2a, 2b, 2c, 2d The state of communication performed between the two is shown.
  • the management device 1 transmits a monitoring signal A1 to the power tools 2a, 2b, 2c, and 2d that have transmitted the work permission signal every time a certain transmission interval t1 elapses.
  • the monitoring signal A1 may include identification information of the power tools 2a, 2b, 2c, and 2d to be controlled and work information for instructing work contents.
  • the work information is, for example, information on the number of tightening times or information on the tightening torque.
  • the management device 1 transmits the ACK signals B1, B2, B3, and B4 at the transmission timing set in synchronization with the transmission timing of the monitoring signal A1.
  • the electric tools 2a, 2b, 2c, and 2d receive information indicating the work content such as the tightening torque and the number of tightening if the drive unit 25 has performed, for example, screw tightening work after the last transmission of the ACK signal. You may transmit to the management apparatus 1 with a signal.
  • the management apparatus 1 can manage the work content performed by each of the electric tools 2a, 2b, 2c, and 2d, and the actual value of the tightening torque indicates whether or not the specified number of tightening operations have been performed. Whether the torque is within the allowable range of the tightening torque can be grasped.
  • the order in which the four power tools 2a, 2b, 2c, and 2d transmit the ACK signal may be determined in, for example, the order in which the numbers represented by the identification information are small, and the ACK signal does not interfere with the ACK signal.
  • the transmission timing may be shifted.
  • t1 is the transmission interval of the monitoring signal A1
  • N2 is the number of divisions for dividing the transmission interval t1 of the monitoring signal A1.
  • the division number N2 may be set to an integer larger than the number N1. If the transmission interval t1 of the monitoring signal A1 is, for example, several hundred milliseconds and the division number N2 is, for example, one thousand, the transmission interval t2 of the ACK signal is several hundred microseconds.
  • the management device 1 can check the survival of each power tool 2 by periodically communicating with the plurality of power tools 2 in each work process.
  • the working status can be collected from Note that communication between the management device 1 and the plurality of power tools 2 is not limited to being performed periodically, and it is only necessary to perform communication once or a plurality of times in each work process.
  • the management unit 111 Transmits a work stop command from the communication unit 12 to the power tools 2a to 2d.
  • the management apparatus 1 becomes unable to communicate with a part of the power tools 2a to 2d used in the current work process, the management apparatus 1 cannot grasp the operating state of the power tool that cannot communicate. Therefore, when the management unit 111 of the management device 1 cannot communicate with a part of the electric tools 2a to 2d, the management unit 111 transmits a work stop command from the communication unit 12 to the electric tools 2a to 2d. Thereby, the work in the current work process can be stopped, and a state in which the management apparatus 1 cannot grasp the work contents using the electric tools 2a to 2d can be avoided.
  • the management unit 111 of the management device 1 may change the communication sequence according to the communication state with the power tool 2 that is the communication partner.
  • the communication unit 12 of the management device 1 has a function of measuring the received signal strength of the ACK signal transmitted from the power tool 2, and the management unit 111 receives the ACK signal received by the communication unit 12 and the received signal thereof. Get strength information.
  • the management unit 111 sets the number of retransmissions of each power tool 2 so as to increase the number of retransmissions, which is the upper limit value of the number of times the signal is retransmitted as the power tool 2 has a lower received signal strength, and sets a setting signal for setting the number of retransmissions.
  • the data is transmitted from the communication unit 12 to the power tool 2 as a transmission source.
  • the communication unit 22 of the electric power tool 2 may have a function of measuring the received signal strength of the monitoring signal A1 transmitted from the management device 1. And according to the received signal strength measured by the communication unit 22, the control unit 21 of the electric power tool 2 may set the number of retransmissions so that the number of retransmissions is increased as the received signal strength is lower. When setting the number of signal retransmissions, the control unit 21 transmits a signal notifying the setting of the number of retransmissions from the communication unit 22 to the management apparatus 1. Also in this case, the lower the received signal strength, that is, the worse the communication environment, the more the number of retransmissions of the power tool 2 is set, so the communication between the power tool and the management device 1 can be performed reliably.
  • the control part 21 of each electric tool 2 is transmitting the registration request signal and identification information from the communication part 22 to the management apparatus 1 in the state before work start.
  • the communication sequence between the electric power tool 2 and the management device 1 may be changed according to the information.
  • a power tool 2 that is to be monitored intensively hereinafter referred to as a power tool 2 subject to priority monitoring
  • information on work content transmitted from the power tool 2 is managed by the management device 1.
  • the power tool 2 subject to priority monitoring is, for example, the power tool 2 that is mainly used by an operator who has many construction errors, or the power tool 2 that is used for work on an important part with strict quality control.
  • the management unit 111 of the management device 1 determines whether or not the power tool 2 is a focus monitoring target based on the identification information transmitted from the power tool 2. And the management part 111 of the management apparatus 1 will increase the frequency
  • the number of retransmissions is set, and a setting signal for the number of retransmissions is transmitted from the communication unit 12 to the power tool 2.
  • the number of signal retransmissions can be set between the power tool 2 and the management apparatus 1 that are the subject of priority monitoring in comparison with the communication sequence between the other power tools 2 and the management apparatus 1.
  • the management unit 111 may adjust the number of retransmissions of the power monitoring tool 2 subject to priority monitoring according to the communication state with the power tool 2, and further increase the number of retransmissions when the received signal strength is low. As described above, the number of signal retransmissions may be set.
  • the work management system 10 of the present embodiment includes the management device 1 and a plurality of power tools (power tools 2).
  • the management device 1 includes a first communication unit (communication unit 12) and a management unit 111.
  • Each of the plurality of power tools includes a second communication unit (communication unit 22) and a control unit 21.
  • the control unit 21 is configured to cause a response signal to the monitoring signal to be transmitted from the second communication unit to the management device 1 when the second communication unit receives the monitoring signal transmitted from the management device 1.
  • the management unit 111 transmits a monitoring signal to the plurality of power tools from the first communication unit, and if the response signal cannot be received from at least one of the plurality of power tools, the first communication unit is connected to all of the plurality of power tools. Is configured to transmit a work stop signal.
  • the work management system 10 of the present embodiment includes the management device 1 and a plurality of power tools (power tools 2) used in a specific work process.
  • the management device 1 includes a first communication unit (communication unit 12) for communicating with a plurality of power tools, and a management unit 111 that transmits a monitoring signal from the first communication unit to all of the plurality of power tools.
  • Each of the plurality of power tools includes a second communication unit (communication unit 22) for communicating with the management device 1, and a response signal from the second communication unit when the second communication unit receives a monitoring signal.
  • a control unit 21 for transmitting to.
  • the management unit 111 is configured to transmit a work stop signal from the first communication unit to all of the plurality of power tools when the response signal cannot be received from at least one of the plurality of power tools after transmitting the monitoring signal. Has been.
  • the management unit 111 transmits a work stop signal to all of the plurality of power tools from the first communication unit, thereby managing It can avoid that the apparatus 1 will be in the state which cannot grasp
  • the management apparatus 1 of the present embodiment is a management apparatus used in the work management system 10 and includes a first communication unit (communication unit 12) and a management unit 111.
  • the management unit 111 transmits a monitoring signal from the first communication unit to the plurality of power tools (power tool 2) and cannot receive a response signal from at least one of the plurality of power tools, all of the plurality of power tools A work stop signal is transmitted from the first communication unit.
  • the management apparatus 1 of this embodiment is used for the work management system 10 described in this embodiment.
  • the management unit 111 transmits a work stop signal to all of the plurality of power tools from the first communication unit, thereby managing It can avoid that the apparatus 1 will be in the state which cannot grasp
  • the management device 1 may further include a storage unit 13 that stores the number of power tools (power tools 2) used in each of a plurality of work processes.
  • the control part 21 of the power tool used in the next work process among the plurality of power tools sends a registration request signal and the power tool from the second communication part (communication part 22) to the management device 1 in a state before the work starts. It is preferable to transmit the identification information.
  • the management unit 111 works on the power tool that is the transmission source of the registration request signal from the first communication unit.
  • a permission signal is transmitted.
  • the management device 1 may further include a storage unit 13 that stores the number of power tools (power tools 2) used in a specific work process.
  • the control unit 21 preferably has a function of transmitting a registration request signal from the second communication unit (communication unit 22) to the management device 1.
  • the management unit 111 transmits a work permission signal from the first communication unit to the power tool that is the source of the registration request signal. It is preferable to do.
  • the management unit 111 starts from the first communication unit.
  • a work permission signal is transmitted to the power tool that is the transmission source of the registration request signal. Therefore, communication can be reliably performed between each of the power tools used in the next work process and the management device 1.
  • the storage unit 13 stores, for each work process, the tool type of the power tool (electric tool 2) used in each of the plurality of work processes and the number of tools used for each tool type. May be.
  • the management unit 111 receives, for each tool type of the power tool used in the next work process, the same number of registration request signals as the number of tools used for each tool type, the management unit 111 permits work to the power tool that is the source of the registration request signal. A signal may be transmitted.
  • the storage unit 13 may store the number of used units for each tool type of the power tool.
  • the management unit 111 transmits the registration request signal from the first communication unit.
  • a work permission signal may be transmitted to the power tool.
  • the management device 1 can send a work permission signal.
  • the management device 1 includes a reading unit (for example, a bar code) that reads information on the tool type from a medium that is provided in the power tool (power tool 2) and stores information on the tool type of the power tool.
  • a reader 3 and a reader device When the first communication unit (communication unit 12) receives the registration request signal transmitted from the power tool, the management unit 111 of the management device 1 has a medium (for example, a label 31, an RFID tag, etc.) provided in the power tool. ) Is read by the reading unit as the tool type of the power tool.
  • each of the plurality of power tools may further include a medium in which information on the tool type of the power tool is recorded.
  • the management apparatus 1 may further include a reading unit that reads tool type information from the medium.
  • the management unit 111 determines the tool type read by the reading unit from the medium as the tool type of the power tool. That is, when the first communication unit (communication unit 12) receives the registration request signal, the management unit 111 causes the reading unit to read the tool type from the medium, and transmits the registration type signal to the tool type read from the medium. It is determined that the type of power tool has been used.
  • the management device 1 can read the information of the tool type of the power tool from the medium provided in the power tool using the reading unit.
  • each of the plurality of power tools may further include a drive unit 25 that drives the tool and an operation unit 24 that operates the drive unit 25.
  • the control unit 21 of each of the plurality of power tools is also preferably in a state of operating the drive unit 25 in accordance with the operation of the operation unit 24.
  • the plurality of power tools used in a specific work process and the management apparatus 1 can communicate, the plurality of power tools are operated in accordance with the operation of the operation unit 24, and the drive unit 25 is operated. can do.
  • each of the plurality of power tools (power tool 2) is configured to set the number of signal retransmissions according to the communication state between the power tool and the management device 1. May be.
  • each of the plurality of power tools has an upper limit of the number of times that the second communication unit retransmits a signal to the management device 1 in accordance with the communication state between the power tool and the management device 1. It may be configured to set the number of retransmissions that is a value.
  • Each of the plurality of power tools can reliably communicate between each of the plurality of power tools and the management device 1 by setting the number of signal retransmissions according to the communication state.
  • the management device 1 may set the number of retransmissions of the power tool subject to priority monitoring among the plurality of power tools (power tool 2) to a number greater than the number of retransmissions of other power tools.
  • the management device 1 has the number of retransmissions of the power tool targeted for priority monitoring among the plurality of power tools (power tool 2) larger than the number of retransmissions of the power tool not targeted for priority monitoring among the plurality of power tools.
  • the number of times may be set.
  • the management device 1 can receive the signal from the power tool subject to priority monitoring more reliably.
  • each of the plurality of power tools may further include a drive unit 25 that drives the tool and an operation unit 24 that operates the drive unit 25.
  • the control unit 21 of each of the plurality of power tools is also preferably in a state in which the drive unit 25 is not operated according to the operation of the operation unit 24.
  • the plurality of power tools used in a specific work process and the management apparatus 1 cannot communicate, the plurality of power tools are moved to the drive unit 25 according to the operation of the operation unit 24. Can be in a state of not operating.
  • the tightening tool of the present embodiment is a torque wrench, but the tightening tool is not limited to a torque tool that can be tightened with a predetermined torque, such as a torque wrench, and can tighten a screw member. Any tool may be used as long as it is a tightening tool.
  • management device electric tool (power tool) 3 Bar code reader (reading unit) 111 management unit 12 communication unit (first communication unit) 13 memory

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Factory Administration (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

L'objectif de la présente invention est de garantir une communication fiable entre chacun des outils électriques de multiples outils électriques et un dispositif de gestion. Ce système de gestion de travail est doté d'un dispositif de gestion (1) et d'une pluralité d'outils électriques (2) utilisés dans un processus de travail spécifique. Une unité de gestion (111) du dispositif de gestion (1) transmet un signal de supervision à chaque outil électrique (2) utilisé dans le processus de travail spécifique par l'intermédiaire d'une unité de communication (22). Lorsque l'unité de communication (22) reçoit le signal de supervision depuis le dispositif de gestion (1), une unité de commande (21) de l'outil électrique (2) amène un signal de réponse à être transmis à partir de l'unité de communication (22) au dispositif de gestion (1). Lorsqu'elle n'arrive pas à recevoir le signal de réponse en provenance d'au moins l'un des outils électriques (2), l'unité de gestion (111) transmet un signal d'arrêt de travail à tous les outils électriques par l'intermédiaire de l'unité de communication (22).
PCT/JP2016/004363 2015-09-30 2016-09-28 Système de gestion et dispositif de gestion de travail WO2017056490A1 (fr)

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JP2015194429A JP6664090B2 (ja) 2015-09-30 2015-09-30 作業管理システム及び管理装置

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US20220026886A1 (en) * 2018-12-27 2022-01-27 Panasonic Intellectual Property Management Co., Ltd. Task assistance device, task assistance method, and recording medium
WO2020194676A1 (fr) * 2019-03-28 2020-10-01 京セラ株式会社 Outil électrique
JP2020203359A (ja) * 2019-06-18 2020-12-24 株式会社ディスコ ドライバー
JP2023155042A (ja) 2022-04-08 2023-10-20 マックス株式会社 電動工具

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