WO2024134894A1 - 制御装置、および産業機械 - Google Patents

制御装置、および産業機械 Download PDF

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Publication number
WO2024134894A1
WO2024134894A1 PCT/JP2022/047716 JP2022047716W WO2024134894A1 WO 2024134894 A1 WO2024134894 A1 WO 2024134894A1 JP 2022047716 W JP2022047716 W JP 2022047716W WO 2024134894 A1 WO2024134894 A1 WO 2024134894A1
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WIPO (PCT)
Prior art keywords
display
unit
restriction information
control device
control
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PCT/JP2022/047716
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English (en)
French (fr)
Japanese (ja)
Inventor
光徳 渡邉
Original Assignee
ファナック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by ファナック株式会社 filed Critical ファナック株式会社
Priority to PCT/JP2022/047716 priority Critical patent/WO2024134894A1/ja
Priority to JP2024565557A priority patent/JPWO2024134894A1/ja
Publication of WO2024134894A1 publication Critical patent/WO2024134894A1/ja

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators

Definitions

  • This disclosure relates to a control device that controls industrial machinery, and to the industrial machinery.
  • Industrial machines installed in factories and other facilities are operated by operators. However, the operator does not always operate or monitor the industrial machines while they are in operation, and may leave the industrial machines. For example, an operator is often in charge of operating multiple industrial machines. In this case, after starting the operation of one industrial machine, the operator prepares the other industrial machines to start operating.
  • the control device of the present disclosure includes a display restriction information storage unit that stores display restriction information for specifying control information whose display is restricted on the lock screen, a detection unit that detects a locked state, a creation unit that creates a lock screen based on the display restriction information stored in the display restriction information storage unit when the detection unit detects the locked state, and a display unit that causes the display device to display the lock screen created by the creation unit in the locked state.
  • FIG. 2 is a block diagram showing an example of a hardware configuration of an industrial machine in which the control device is implemented.
  • FIG. FIG. 2 is a block diagram showing an example of a function of a control device.
  • 13 is an example of a screen displayed on a display device. 13 is an example of a display restriction information setting screen. 1 is an example of a lock screen. 13 is an example of an operation restriction information setting screen. 1 is an example of a lock screen. 13 is an example of an alarm display screen.
  • 4 is a flowchart illustrating an example of a process executed by a control device. 4 is a flowchart showing an example of a process flow when a control device executes control of an industrial machine.
  • FIG. 4 is a block diagram showing an example of the functions of a control unit.
  • based on XX means “based on at least XX,” and includes cases where it is based on other elements in addition to XX. Furthermore, “based on XX” is not limited to cases where XX is used directly, but also includes cases where it is based on XX that has been calculated or processed. "XX” is any element (for example, any information).
  • a control device is a device that controls industrial machinery.
  • Industrial machinery is machinery that operates in industrial sites. Examples of industrial machinery include machine tools, injection molding machines, laser processing machines, three-dimensional printers, and robots.
  • FIG. 1 is a block diagram showing an example of the hardware configuration of an industrial machine in which a control device is implemented.
  • the industrial machine 1 includes a control device 2, an input/output device 3, a servo amplifier 4, a servo motor 5, a spindle amplifier 6, a spindle motor 7, an auxiliary device 8, and a sensor 9.
  • the control device 2 is, for example, a numerical control device that controls the industrial machine 1.
  • the control device 2 includes, for example, a hardware processor 201, a bus 202, a ROM (Read Only Memory) 203, a RAM (Random Access Memory) 204, and a non-volatile memory 205.
  • the hardware processor 201 is a processor that controls the entire control device 2 in accordance with a system program.
  • the hardware processor 201 reads out the system program stored in the ROM 203 via the bus 202.
  • the hardware processor 201 is, for example, a CPU (Central Processing Unit) or an electronic circuit.
  • the bus 202 is a communication path that connects each piece of hardware in the control device 2 to each other. Each piece of hardware in the control device 2 exchanges data via the bus 202.
  • ROM 203 is a storage device that stores system programs and the like. ROM 203 is a computer-readable storage medium.
  • RAM 204 is a storage device that temporarily stores various data. RAM 204 functions as a working area for the hardware processor 201 to process various data.
  • the non-volatile memory 205 is a storage device that retains data even when the control device 2 is powered off.
  • the non-volatile memory 205 stores, for example, the operating program of the industrial machine 1.
  • the non-volatile memory 205 is a computer-readable storage medium.
  • the non-volatile memory 205 is, for example, a battery-backed memory or an SSD (Solid State Drive).
  • the control device 2 further includes a first interface 206, an axis control circuit 207, a spindle control circuit 208, a PLC (Programmable Logic Controller) 209, an I/O unit 210, and a second interface 211.
  • the first interface 206 connects the bus 202 and the input/output device 3.
  • the first interface 206 sends, for example, various data processed by the hardware processor 201 to the input/output device 3.
  • the input/output device 3 receives various data via the first interface 206 and displays the various data on a display.
  • the input/output device 3 also receives input of various data and sends the various data via the first interface 206 to, for example, the hardware processor 201.
  • the input/output device 3 is, for example, a touch panel.
  • the input/output device 3 is, for example, a capacitive touch panel.
  • the touch panel is not limited to a capacitive touch panel, and may be a touch panel of another type.
  • the input/output device 3 is installed in an operation panel (not shown) in which the control device 2 is stored.
  • the axis control circuit 207 is a circuit for controlling the servo motor 5.
  • the axis control circuit 207 receives control commands from the hardware processor 201 and sends various commands to the servo amplifier 4 for driving the servo motor 5.
  • the axis control circuit 207 sends, for example, a torque command for controlling the torque of the servo motor 5 to the servo amplifier 4.
  • the servo amplifier 4 receives commands from the axis control circuit 207 and supplies current to the servo motor 5.
  • the servo motors 5 are driven by receiving a current supply from the servo amplifier 4.
  • the servo motors 5 are provided for each control axis of the industrial machine 1. If the industrial machine 1 is a machine tool having five axes, the servo motors 5 include, for example, an X-axis servo motor, a Y-axis servo motor, a Z-axis servo motor, an A-axis servo motor, and a C-axis servo motor.
  • the axis control circuit 207 and the servo amplifier 4 are provided for each servo motor 5.
  • the servo motor 5 is connected to, for example, a ball screw that drives the tool post.
  • the structure of the industrial machine 1, such as the tool post moves along a specified control axis.
  • the servo motor 5 has a built-in encoder (not shown) that detects the position and feed speed of the control axis. Position feedback information and speed feedback information indicating the position of the control axis and the feed speed of the control axis detected by the encoder, respectively, are fed back to the axis control circuit 207. In this way, the axis control circuit 207 performs feedback control of each control axis.
  • the spindle control circuit 208 is a circuit for controlling the spindle motor 7.
  • the spindle control circuit 208 receives a control command from the hardware processor 201 and sends a command to the spindle amplifier 6 to drive the spindle motor 7.
  • the spindle control circuit 208 sends, for example, a spindle speed command to the spindle amplifier 6 to control the rotation speed of the spindle motor 7.
  • the spindle amplifier 6 receives commands from the spindle control circuit 208 and supplies current to the spindle motor 7.
  • the spindle motor 7 is driven by a current supplied from the spindle amplifier 6.
  • the spindle motor 7 is connected to the main shaft and rotates the main shaft.
  • the PLC 209 is a device that executes a ladder program to control the auxiliary device 8.
  • the PLC 209 sends commands to the auxiliary device 8 via the I/O unit 210.
  • the I/O unit 210 is an interface that connects the PLC 209 and the auxiliary device 8.
  • the I/O unit 210 sends commands received from the PLC 209 to the auxiliary device 8.
  • the auxiliary device 8 is installed in the industrial machine 1 and performs auxiliary operations in the industrial machine 1.
  • the auxiliary device 8 operates based on commands received from the I/O unit 210.
  • the auxiliary device 8 may be a device installed in the periphery of the industrial machine 1.
  • the auxiliary device 8 is, for example, a tool changer, a cutting fluid injection device, or an opening/closing door drive device.
  • the second interface 211 connects the bus 202 and the sensor 9.
  • the second interface 211 sends, for example, information acquired by the sensor 9 to the hardware processor 201 via the bus 202.
  • Sensors 9 are installed in various parts of the industrial machine 1 to detect various physical quantities. Examples of sensors 9 include a temperature sensor, an acceleration sensor, an ammeter, and a liquid level meter.
  • FIG. 2 is a block diagram showing an example of the functions of the control device 2.
  • the control device 2 includes a control unit 221, a creation unit 222, a display unit 223, a display restriction information receiving unit 224, a display restriction information storage unit 225, and a detection unit 226.
  • the control unit 221, creation unit 222, display unit 223, display restriction information receiving unit 224, and detection unit 226 are realized, for example, by the hardware processor 201 performing calculations using the system program stored in the ROM 203 and various data stored in the non-volatile memory 205.
  • the display restriction information storage unit 225 is realized, for example, by storing various information in the RAM 204 or the non-volatile memory 205.
  • the control unit 221 controls the industrial machine 1. For example, the control unit 221 controls the servo motor 5 of the industrial machine 1 based on an operation program. If the industrial machine 1 is a machine tool, the control unit 221 controls the servo motor 5 and spindle motor 7 based on a machining program. This causes the industrial machine 1 to machine a workpiece.
  • the creation unit 222 creates a display screen based on the control state of the industrial machine 1.
  • the display screen is, for example, an overall display screen.
  • the overall display screen includes one or more display areas.
  • FIG. 3 is an example of the overall display screen.
  • the overall display screen includes, for example, a relative coordinate display area A1, an absolute coordinate display area A2, a machine coordinate display area A3, a remaining movement amount display area A4, a modal display area A5, a servo load meter display area A6, and a machining program display area A7.
  • Each display area A1 to A7 is also referred to as a screen component.
  • the overall display screen includes one or more screen components.
  • the creation unit 222 creates a screen component for each type of control information.
  • the relative coordinate display area A1 is an area in which the coordinate values of each control axis are displayed when a specified position is set as the origin.
  • the specified position is determined arbitrarily by the operator, for example.
  • the absolute coordinate display area A2 is an area that displays the coordinate values of each control axis in the coordinate system used when machining the workpiece.
  • the machine coordinate display area A3 is an area where the coordinate values of each axis in the machine coordinate system are displayed.
  • the remaining movement amount display area A4 is an area that displays, for example, the remaining movement amount to the coordinate value specified in one block of a machining program during execution of that block.
  • the modal display area A5 is an area where modal information is displayed.
  • Modal information means a code that is valid until another code in the same group is specified.
  • the servo load meter display area A6 is an area where the load of the servo motor 5 of each control axis is displayed.
  • the machining program display area A7 is an area where the machining program executed by the control device 2 is displayed. While the machining program is being executed, the machining program being executed is displayed in the machining program display area A7.
  • the axis feed speed and the spindle rotation speed may also be displayed on the general display screen.
  • the creation unit 222 may create an alarm screen, a machining program screen, a parameter screen, a ladder program screen, and a signal screen.
  • Each display screen includes one or more display areas. Note that detailed explanations of these display screens are omitted.
  • the display unit 223 displays each display screen created by the creation unit 222 on a display device.
  • the display device is, for example, the input/output device 3.
  • the display device may also be a monitor of a PC (Personal Computer) connected to the control device 2.
  • PC Personal Computer
  • the display restriction information receiving unit 224 receives display restriction information to be stored in the display restriction information storage unit 225.
  • the display restriction information is information for specifying the control information whose display is restricted on the lock screen.
  • the display restriction information is information for restricting the display of part of the control information related to the control of the industrial machine 1.
  • the lock screen is a screen on which the display of part of the control information is restricted when the control device 2 is activated.
  • the control information is information relating to the control of the industrial machine 1 and the control device 2.
  • the control information includes, for example, information relating to abnormalities, status, and operation of the industrial machine 1 and the control device 2.
  • the information about the abnormality includes information about the alarm that has occurred. For example, an alarm occurs when the inside of the control device 2 overheats, when a tool reaches the end of its life, or when the amount of cutting fluid reaches a lower limit.
  • the status information includes information indicating the control status of the industrial machine 1 and the control device 2.
  • the above-mentioned modal information and information indicating the load of each servo motor 5 are status information. Note that if the servo load meter indicates an overload, the information indicating the load of each servo motor 5 can also be considered information regarding an abnormality.
  • the information relating to operation includes information relating to the operation of each structure of the industrial machine 1.
  • the information relating to operation includes, for example, information indicating the feed speed of each control axis and information indicating the rotation speed of the spindle.
  • the information displayed in each of the above-mentioned display areas is control information.
  • the information displayed in the modal display area A5 and the information displayed in the servo load meter display area A6 is information related to the status.
  • the information displayed in each coordinate display area A1 to A3 is information related to the operation.
  • the display restriction information receiving unit 224 for example, displays a display restriction information setting screen on a display device.
  • FIG. 4 is an example of a display restriction information setting screen.
  • the display restriction information setting screen displays one or more types of candidate control information whose display is restricted on the lock screen.
  • the display restriction information setting screen displays the following text along with check boxes: "coordinate values,” “alarm information,” “modal information,” “signal information,” “machining program,” “ladder program,” and “parameters.”
  • the operator performs a selection operation on the input/output device 3 to select at least one of one or more types of control information displayed on the display restriction information setting screen.
  • the operator selects, for example, "machining program” and “parameters.”
  • the display restriction information receiving unit 224 receives "machining program” and "parameters" as display restriction information.
  • the display restriction information receiving unit 224 may receive the display restriction information written in a file.
  • the display restriction information receiving unit 224 may receive a file in which the display restriction information is written from a server, for example. In this case, the operator can reduce the time it takes to select the display restriction information. Now, we return to the explanation of FIG. 2.
  • the display restriction information storage unit 225 stores one or more types of display restriction information received by the display restriction information receiving unit 224.
  • the display restriction information receiving unit 224 receives a "processing program” and “parameters” as display restriction information
  • the display restriction information storage unit 225 stores the "processing program” and "parameters.”
  • the detection unit 226 detects the locked state.
  • the locked state is a state in which the display of some of the control information or some of the operations by the operator are restricted while the control device 2 is started up or operating. While the control device 2 is operating, this is a state in which the operator has completed logging in to the control device 2.
  • a lock screen is displayed on the display device.
  • the lock screen displays at least one of the above-mentioned information regarding an abnormality, information regarding the status, and information regarding the operation.
  • the creation unit 222 creates a lock screen based on the display restriction information stored in the display restriction information storage unit 225. For example, the creation unit 222 creates a lock screen in which, of one or more display areas included in the overall display screen, a display area that displays control information specified in the display restriction information is hidden.
  • FIG. 5 is an example of a lock screen. If the display restriction information storage unit 225 stores "machining program" as the display restriction information, the creation unit 222 creates a lock screen in which the display of the machining program is restricted. In other words, the creation unit 222 creates a lock screen in which the machining program display area A7 is hidden. Also, if the display restriction information storage unit 225 stores "parameters" as the display restriction information, the creation unit 222 creates a lock screen in which the display of the parameters is restricted.
  • the manner of hiding the display may be any manner in which the machining program cannot be recognized by a person viewing the display device.
  • the creation unit 222 creates a lock screen in which the machining program display area A7 is painted black.
  • the creation unit 222 may also create a lock screen that includes information that has been set in advance by an operator.
  • the creation unit 222 may create a lock screen that includes a character string such as "If alarm xxx occurs, contact yyy.”
  • xxx refers to the type of alarm
  • yyy refers to a predetermined department or person in charge.
  • the display unit 223 displays the lock screen created by the creation unit 222 on the display device in the locked state. Now, let us return to the explanation of FIG. 2.
  • the control device 2 further includes an operation restriction information receiving unit 227, an operation restriction information storage unit 228, an operation receiving unit 229, and a judgment unit 230.
  • the operation restriction information receiving unit 227, the operation receiving unit 229, and the judgment unit 230 are realized, for example, by the hardware processor 201 performing calculations using a system program stored in the ROM 203 and various data stored in the non-volatile memory 205.
  • the operation restriction information storage unit 228 is realized, for example, by storing various information in the RAM 204 or the non-volatile memory 205.
  • the operation restriction information receiving unit 227 receives operation restriction information stored in the operation restriction information storage unit 228.
  • the operation restriction information is information for specifying the display operations of the operator that are restricted in the locked state. In other words, the operation restriction information is information for restricting some of the display operations by the operator.
  • the operation restriction information receiving unit 227 for example, displays an operation restriction information setting screen on the display device.
  • FIG. 6 is an example of an operation restriction information setting screen.
  • the operation restriction information setting screen displays one or more candidate types of display operations that are restricted in the locked state.
  • the operation restriction information setting screen displays the text "General display screen”, “Alarm screen”, “Machining program list screen”, “Machining program editing screen”, “Parameter list screen”, “Ladder program editing screen” and “Signal list screen” along with check boxes.
  • the operator performs a selection operation on the input/output device 3 to select at least one of one or more candidates displayed on the operation restriction information setting screen.
  • the operator selects, for example, the "machining program list screen,” the “machining program editing screen,” and the “parameter list screen.”
  • the operation restriction information receiving unit 227 receives the "machining program list screen,” the "machining program editing screen,” and the "parameter list screen” as operation restriction information.
  • the operation restriction information receiving unit 227 may receive operation restriction information written in a file.
  • the operation restriction information receiving unit 227 may receive a file in which operation restriction information is written from a server, for example. In this case, the operator can reduce the time required for selecting operation restriction information. Now, return to the explanation of FIG. 2.
  • the operation restriction information storage unit 228 stores one or more types of operation restriction information received by the operation restriction information receiving unit 227.
  • the operation restriction information storage unit 228 stores the "machining program list screen", the "machining program editing screen”, and the "parameter list screen” as operation restriction information.
  • the operation reception unit 229 receives operations on the input/output device 3.
  • the operations received by the operation reception unit 229 are display operations that cause a specified screen to be displayed on the display device.
  • the operation reception unit 229 receives display operations that cause a "general display screen”, “alarm screen”, “machining program list screen”, “machining program editing screen”, “parameter list screen”, “ladder program editing screen” or “signal list screen” to be displayed on the display device.
  • the specified screens are not limited to these. Therefore, the display operations received by the operation reception unit 229 are not limited to these either.
  • the determination unit 230 determines whether or not to execute a display based on the operation received by the operation reception unit 229, based on the operation restriction information stored in the operation restriction information storage unit 228. For example, if the operation restriction information storage unit 228 stores the "machining program list screen”, “machining program editing screen”, and “parameter list screen” as operation restriction information, and the operation reception unit 229 receives an operation to display any of these screens, the determination unit 230 determines that a display based on the operation will not be executed. In other words, the display of the "machining program list screen", “machining program editing screen”, and “parameter list screen” is prohibited.
  • the operation restriction information storage unit 228 stores the "machining program list screen”, “machining program editing screen” and “parameter list screen” as operation restriction information and the operation reception unit 229 receives an operation to display a screen other than the "machining program list screen", “machining program editing screen” and “parameter list screen”, the judgment unit 230 judges that a display based on the operation will be executed. For example, when the operation reception unit 229 receives an operation to display an "alarm screen”, the judgment unit 230 judges that a display of the "alarm screen” based on the operation will be executed. In other words, the display of the "alarm screen” is permitted.
  • the creation unit 222 creates a lock screen based on the result of the determination by the determination unit 230. For example, if the determination unit 230 determines that the display of the "machining program editing screen" is not to be executed, the creation unit 222 creates a lock screen that does not display the "machining program editing screen".
  • the creation unit 222 may create a lock screen that displays a character string, such as "Locked,” that allows the operator to recognize that the control device 2 is locked (see FIG. 7).
  • the creation unit 222 creates the "alarm screen” (see FIG. 8).
  • the operation reception unit 229 may disable the reception of operations for changing or outputting the control information stored in the control device 2. In other words, the operation reception unit 229 only accepts display operations for the control information to be displayed on the display device. On the other hand, the operation reception unit 229 does not accept operations for rewriting the control information or for outputting the control information to the outside.
  • the operation reception unit 229 may also receive other operations unrelated to the leakage of confidential information.
  • the operation reception unit 229 may receive input based on an operation on an emergency stop button installed on a control panel.
  • FIG. 9 is a flowchart showing an example of the flow of processing executed by the control device 2.
  • the control device 2 for example, during initial configuration, display restriction information and operation restriction information are set.
  • the display restriction information receiving unit 224 receives the display restriction information (step SA1).
  • the display restriction information storage unit 225 stores the display restriction information received by the display restriction information receiving unit 224 (step SA2).
  • the operation restriction information receiving unit 227 receives the operation restriction information (step SA3).
  • the operation restriction information storage unit 228 stores the operation restriction information received by the operation restriction information receiving unit 227 (step SA4). This sets the display restriction information and the operation restriction information, and the process ends.
  • FIG. 10 is a flowchart showing an example of the process flow when the control device 2 controls the industrial machine 1. Note that the display screen creation process of step SB2 and the display screen display process of step SB3 described below are repeated at a predetermined cycle or when the control information is updated, but are not shown in the figures. The lock screen creation process of step SB5 and the lock screen display process of step SB6, and the lock screen creation process of step SB9 and the lock screen display process of step SB10 are also repeated in a similar manner, but are not shown in the figures.
  • the control unit 22 for example, starts controlling the industrial machine 1 based on the operation program of the industrial machine 1 (step SB1).
  • the creation unit 222 creates a display screen based on the control state of the industrial machine 1 (step SB2).
  • the creation unit 222 creates, for example, an overall display screen.
  • the display unit 223 displays the display screen created by the creation unit 222 on the display device (step SB3).
  • the detection unit 226 detects the locked state (step SB4).
  • the creation unit 222 creates a lock screen based on the display restriction information stored in the display restriction information storage unit 225 (step SB5).
  • the creation unit 222 creates a lock screen in which, for example, part of the display area is painted black.
  • the display unit 223 displays the lock screen created by the creation unit 222 on the display device (step SB6).
  • the operation reception unit 229 receives the operation (step SB7).
  • the determination unit 230 determines whether or not the operation unit executes the operation received (step SB8).
  • the creation unit 222 creates a lock screen (step SB9). That is, the creation unit 222 creates a lock screen that restricts the display of the control information selected by the operator. On the other hand, if the determination unit 230 determines that a display based on an operation by the operator will be executed, the creation unit 222 creates a lock screen that includes the control information selected by the operation (step SB9).
  • the display unit 223 displays the lock screen created by the creation unit 222 (step SB10), and the process ends.
  • the control device 2 may also have a function to identify the operator and a function to transition the control state of the control device 2 to a locked state.
  • FIG. 11 is a block diagram showing an example of the functions of the control unit 221.
  • the control unit 221 includes an identification unit 221A and a transition unit 221B.
  • the identification unit 221A identifies the operator based on information input from an input device (not shown).
  • the input device is, for example, a card reader, a camera, or a keyboard. If the input device is a card reader, the input device reads, for example, identification information embedded in an ID card such as an employee ID card.
  • the identification unit 221A identifies the operator based on the identification information read by the card reader.
  • the input device is a camera
  • the input device captures an image of the operator's face.
  • the identification unit 221A identifies the operator based on the image captured by the camera. If the input device is a keyboard, for example, a user name and password are input from the input device.
  • the identification unit 221A identifies the operator based on the user name and password input from the keyboard.
  • the control unit 221 releases the locked state. Also, when the identification unit 221A identifies a pre-registered operator at the time of startup of the control device 2, the operator is permitted to log in to the control device 2.
  • the transition unit 221B transitions the control device 2 to a locked state. For example, if no operation is performed by the operator for a predetermined time while the control device 2 is in operation, the transition unit 221B transitions the control device 2 to a locked state.
  • the predetermined time is, for example, 5 minutes.
  • the transition unit 221B may transition the control device 2 to the locked state if an operation to start the locked state is performed by the operator.
  • the display unit 223 may first activate a screen saver. In this case, when any operation is performed on the input/output device 3, the display unit 223 may stop the screen saver and display the lock screen.
  • the control device 2 may have a function to change at least one of the content and display mode of the control information displayed on the lock screen based on the control state.
  • the creation unit 222 creates a display screen so that information related to an abnormality is displayed with priority. Also, during normal times when no alarm occurs, the creation unit 222 creates a display screen so that information related to the status or information related to the operation is displayed with priority.
  • the creation unit 222 creates a display screen in which the background of each display area is, for example, yellow or red.
  • the creation unit 222 may make the background of each display area red.
  • the creation unit 222 may make the background of each display area yellow.
  • the creation unit 222 may create a display screen in which the background of each display area is white.
  • the control device 2 includes a display restriction information storage unit 225 that stores display restriction information for specifying control information whose display is restricted on the lock screen, a detection unit 226 that detects the locked state, a creation unit 222 that creates a lock screen based on the display restriction information stored in the display restriction information storage unit 225 when the detection unit 226 detects the locked state, and a display unit 223 that causes the display device to display the lock screen created by the creation unit 222 in the locked state.
  • a display restriction information storage unit 225 that stores display restriction information for specifying control information whose display is restricted on the lock screen
  • a detection unit 226 that detects the locked state
  • a creation unit 222 that creates a lock screen based on the display restriction information stored in the display restriction information storage unit 225 when the detection unit 226 detects the locked state
  • a display unit 223 that causes the display device to display the lock screen created by the creation unit 222 in the locked state.
  • the control device 2 therefore prevents information leaks in the industrial machine 1 while allowing other operators to quickly respond to abnormalities. For example, the control device 2 can prevent confidential information such as machining programs and parameter settings from being leaked. The control device 2 also allows other operators to quickly check the details of the abnormality.
  • the control device 2 further includes an operation restriction information storage unit 228 that stores operation restriction information for specifying display operations that are restricted in the locked state, an operation reception unit 229 that receives operations, and a determination unit 230 that determines whether or not to execute a display based on the operation received by the operation reception unit 229 based on the operation restriction information stored in the operation restriction information storage unit 228, and the creation unit 222 further creates a lock screen based on the determination result by the determination unit 230. Therefore, the control device 2 can restrict some of the display operations of other operators.
  • the control device 2 further includes an operation restriction information receiving unit 227 that receives operation restriction information stored in the operation restriction information storage unit 228. Therefore, the operator can set operation restriction information in the control device 2. Therefore, the operator can customize the operation restriction information that is set for each factory or each industrial machine 1.
  • the operation reception unit 229 disables the reception of operations for changing or outputting the control information. Therefore, the control device 2 prevents the leakage and tampering of confidential information.
  • the control device 2 further includes a display restriction information receiving unit 224 that receives the display restriction information stored in the display restriction information storage unit 225. Therefore, the operator can set the display restriction information in the control device 2. Therefore, the operator can customize the display restriction information that is set for each factory or each industrial machine 1.
  • the lock screen also displays at least one of information related to an abnormality, information related to the status, and information related to operation. Therefore, even if the control device 2 is in a locked state, other operators can quickly respond to the abnormality based on the control information displayed on the lock screen.
  • Responses to abnormalities include, for example, emergency stopping the industrial machine 1, cutting off the power to the industrial machine 1, contacting a predetermined department or person in charge, evacuating devices installed in the vicinity of the industrial machine 1 where the abnormality has occurred, and extinguishing a fire on the industrial machine 1.
  • the creation unit 222 also changes at least one of the content and display mode of the information displayed on the lock screen based on the control information. Therefore, even if an abnormality occurs in the locked state, the control device 2 can make other operators aware of the abnormality.
  • the control device 2 also includes an identification unit 221A that identifies the operator. This ensures the security of the control device 2.
  • the control device 2 further includes a transition unit 221B that transitions to the locked state. This allows the control device 2 to transition to the locked state at an appropriate time.
  • the creation unit 222 also creates a lock screen in which, among one or more display areas included in the lock screen, a display area that displays control information specified by the display restriction information is hidden. This allows the control device 2 to prevent confidential information from leaking. The control device 2 also allows other operators to quickly check the details of any abnormalities, etc.
  • the industrial machine 1 is equipped with a control device 2. Therefore, the control device 2 can prevent the leakage of confidential information related to the industrial machine 1.
  • a control device comprising: a display restriction information storage unit that stores display restriction information for specifying control information whose display is restricted on a lock screen; a detection unit that detects a locked state; a creation unit that creates a lock screen based on the display restriction information stored in the display restriction information storage unit when the detection unit detects the locked state; and a display unit that displays the lock screen created by the creation unit on a display device in the locked state.
  • Appendix [2] The control device described in Appendix [1] further comprises an operation restriction information storage unit that stores operation restriction information for specifying display operations that are restricted in the locked state, an operation reception unit that accepts operations, and a judgment unit that judges whether to execute a display based on the operation accepted by the operation reception unit based on the operation restriction information stored in the operation restriction information storage unit, wherein the creation unit further creates the lock screen based on the judgment result by the judgment unit.
  • Appendix [3] The control device according to claim 2, further comprising an operation restriction information receiving unit that receives the operation restriction information stored in the operation restriction information storage unit.
  • Appendix [4] The control device according to claim 2, wherein the operation reception unit disables reception of operations for changing or outputting the control information.
  • Appendix [5] The control device according to any one of appendices [1] to [4], further comprising a display restriction information receiving unit that receives the display restriction information stored in the display restriction information storage unit.
  • Appendix [6] The control device according to any one of appendices [1] to [5], wherein at least one of information regarding an abnormality, information regarding a status, and information regarding an operation is displayed on the lock screen.
  • Appendix [7] The control device according to any one of appendices [1] to [6], wherein the creation unit changes at least one of the content and the display mode of the control information displayed on the lock screen based on the control information.
  • Appendix [8] The control device according to any one of appendices [1] to [7], further comprising an identification unit for identifying an operator.
  • Appendix [9] The control device according to any one of appendices [1] to [8], further comprising a transition unit that transitions to the locked state.
  • Appendix [10] The control device according to any one of claims [1] to [9], wherein the creation unit creates the lock screen by hiding a display area, among one or more display areas included in the lock screen, that displays the control information specified by the display restriction information.
  • Appendix [11] An industrial machine comprising the control device according to any one of appendices [1] to [10].

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Numerical Control (AREA)
PCT/JP2022/047716 2022-12-23 2022-12-23 制御装置、および産業機械 WO2024134894A1 (ja)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08286647A (ja) * 1995-04-14 1996-11-01 Canon Inc 表示装置の画面焼き付け防止方法及び装置
JPH1195878A (ja) * 1997-09-25 1999-04-09 Casio Comput Co Ltd データ処理装置、ネットワークシステム、及び記録媒体
JP2000182924A (ja) * 1998-12-11 2000-06-30 Canon Inc デバイス製造装置
WO2006054699A1 (ja) * 2004-11-19 2006-05-26 Kabushiki Kaisha Toshiba 医用画像診断装置、セキュリティ管理システムおよびセキュリティ管理方法
JP2007164372A (ja) * 2005-12-12 2007-06-28 Toshiba Corp 医用装置及びスクリーンロック制御プログラム
JP2010199683A (ja) * 2009-02-23 2010-09-09 Panasonic Electric Works Co Ltd 監視制御装置
CN112394694A (zh) * 2020-11-13 2021-02-23 杭州和利时自动化有限公司 一种黑屏控制方法、系统、设备及计算机可读存储介质

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08286647A (ja) * 1995-04-14 1996-11-01 Canon Inc 表示装置の画面焼き付け防止方法及び装置
JPH1195878A (ja) * 1997-09-25 1999-04-09 Casio Comput Co Ltd データ処理装置、ネットワークシステム、及び記録媒体
JP2000182924A (ja) * 1998-12-11 2000-06-30 Canon Inc デバイス製造装置
WO2006054699A1 (ja) * 2004-11-19 2006-05-26 Kabushiki Kaisha Toshiba 医用画像診断装置、セキュリティ管理システムおよびセキュリティ管理方法
JP2007164372A (ja) * 2005-12-12 2007-06-28 Toshiba Corp 医用装置及びスクリーンロック制御プログラム
JP2010199683A (ja) * 2009-02-23 2010-09-09 Panasonic Electric Works Co Ltd 監視制御装置
CN112394694A (zh) * 2020-11-13 2021-02-23 杭州和利时自动化有限公司 一种黑屏控制方法、系统、设备及计算机可读存储介质

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