WO2021181801A1 - ロボット制御システムおよび制御方法 - Google Patents
ロボット制御システムおよび制御方法 Download PDFInfo
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- WO2021181801A1 WO2021181801A1 PCT/JP2020/047242 JP2020047242W WO2021181801A1 WO 2021181801 A1 WO2021181801 A1 WO 2021181801A1 JP 2020047242 W JP2020047242 W JP 2020047242W WO 2021181801 A1 WO2021181801 A1 WO 2021181801A1
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- Prior art keywords
- robot
- control device
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- program
- source
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/16—Program controls
- B25J9/1656—Program controls characterised by programming, planning systems for manipulators
- B25J9/1658—Program controls characterised by programming, planning systems for manipulators characterised by programming language
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Program-controlled manipulators
- B25J9/16—Program controls
- B25J9/1656—Program controls characterised by programming, planning systems for manipulators
-
- 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—Program-control systems
- G05B19/02—Program-control systems electric
- G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0426—Programming the control sequence
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/36—Nc in input of data, input key till input tape
- G05B2219/36513—Select out of a plurality of programs, patterns
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/39—Robotics, robotics to robotics hand
- G05B2219/39448—Same teach pendant connects to many robot controllers over network
Definitions
- This technology relates to robot control systems and control methods.
- Patent Document 1 discloses a configuration for constructing an automation facility using a robot at low cost without learning a robot language. do.
- the purpose of this technology is to provide a robot control system that can handle multiple sources that indicate the behavior of a robot.
- the robot control system includes a first control device and a second control device that is network-connected to the first control device and controls the robot.
- the first control device is a selection unit that activates one of a plurality of sources that provides information for generating a command that instructs the behavior of the robot, and an enabled source among the plurality of sources. It includes a first communication unit that transmits a command generated according to the information from the second control device to the second control device.
- the second control device is a second communication unit that receives a command transmitted from the first control device, and each axis of the robot so as to realize the behavior instructed by the command from the first control device. Includes a command value generator that sequentially generates command values for driving.
- the first control device can activate any of a plurality of sources arbitrarily selected and generate a command according to the information from the activated source.
- the robot control system can be operated flexibly.
- the plurality of sources are connected to a program interpreting unit that sequentially executes a robot program, a first control device, an operation unit that generates an operation command according to a user operation, and a first control device, and is connected to a user. It may include a plurality of a development support device that provides information according to an operation or program execution, and a program execution unit that executes an IEC program.
- the robot can be controlled according to the original robot program, but also the robot can be controlled according to the operation command from the operation unit, the instruction from the development support device, the execution result of the IEC program, and the like.
- the selection unit may enable a specific source according to an external command given to the first control device. According to this configuration, the operation to be enabled can be changed by an instruction from an information processing device or the like outside the first control device, so that more flexible operation can be realized.
- the selection unit may determine the source to be activated according to a predetermined setting. According to this configuration, it is possible to perform an operation in which a specific source is prioritized.
- the preset settings may include priorities for the source.
- the selection unit may enable a source having a higher priority when information is provided from each of the plurality of sources. According to this configuration, the source from which the command is generated can be automatically determined according to the priority.
- the first communication unit may notify the second control device of which source the selection unit has enabled. According to this configuration, in the second control device, the processing can be different depending on the activated source. This makes it possible to control the robot according to the activated source.
- the command value generation unit may have different command value generation characteristics for driving each axis of the robot, depending on which source is enabled by the selection unit. According to this configuration, the robot can be controlled with characteristics according to the source.
- a control method in a robot control system including a first control device, a second control device connected to the first control device via a network, and a second control device for controlling the robot
- the control method includes a step in which the first control device activates one of a plurality of sources for providing information for generating a command instructing the behavior of the robot, and the first control device is a step.
- FIG. 1 is a schematic diagram showing an outline of the robot control system 1 according to the present embodiment.
- the robot control system 1 is connected to the control device 100 (first control device) and the control device 100 via a network, and the robot controller 250 (second control device) for controlling the robot 200. And include. A plurality of robot controllers 250 may be connected to the control device 100.
- the control target of the robot control system 1 is not limited to the robot 200.
- the control device 100 can control various devices and machines constituting the production equipment including the robot 200 in addition to the robot 200.
- the control device 100 may be linked with a safety controller that monitors the operation of the robot 200. That is, in the present specification, the term "robot control system" is used to mean a system having a function of controlling a robot, and does not exclude controlling other than the robot.
- the control device 100 includes a command generation module 156 that generates a command 158 that instructs the behavior of the robot 200, and a communication unit 50 that transmits the command 158 to the robot controller 250 (field network controller 108, communication control module 160, and communication, which will be described later). It is composed of a driver 162 and the like).
- Multiple sources that provide information for generating the command 158 can be connected to the command generation module 156.
- source means a source of information for generating a command instructing the behavior of the robot 200.
- the information for generating the command includes an internal command and / or an operation command instructed by the user, which will be described later.
- the source selection function 157 (selection unit) of the command generation module 156 activates one of a plurality of sources.
- the command generation module 156 generates the command 158 according to the information from the source enabled by the source selection function 157.
- the communication unit 50 transmits the command 158 generated according to the information from the activated source among the plurality of sources to the robot controller 250.
- the robot controller 250 includes a communication unit 60 (consisting of a field network controller 252, a communication control module 280, a communication driver 282, etc., which will be described later) for receiving a command 158 transmitted from the control device 100, and a command 158 from the control device 100. It has a command value generation module 290 (command value generation unit) that sequentially generates command values for driving each axis of the robot 200 so as to realize the behavior instructed by.
- a communication unit 60 consisting of a field network controller 252, a communication control module 280, a communication driver 282, etc., which will be described later
- a command value generation module 290 command value generation unit
- the axis of the robot 200 may form a joint, it is also referred to as the "axis or joint" of the robot 200 in the following description. That is, in the present specification, the term “axis” of the robot 200 is used to include an axis and a joint.
- the robot control system 1 since a plurality of sources can be selectively enabled, the robot 200 can be controlled not only by the original robot program 1108 but also according to information from other sources. As a result, the robot control system 1 can be operated flexibly.
- FIG. 2 is a schematic diagram showing a configuration example of the robot control system 1 according to the present embodiment.
- the robot control system 1 according to the present embodiment includes a control device 100 and one or more robots 200 connected to the control device 100 via a field network 20.
- each of the robots 200 is controlled by the robot controller 250.
- the robot controller 250 is connected to the control device 100 via a network to control the robot 200. More specifically, the robot controller 250 outputs a command value for controlling the robot 200 in accordance with a command 158 from the control device 100.
- a custom robot 200A having one or a plurality of axes or joints arbitrarily created according to an application may be used.
- any general-purpose robot 200B such as a horizontal articulated (scalar) robot, a vertical articulated robot, a parallel link robot, and a Cartesian robot may be used.
- Any device such as an I / O unit, a safety I / O unit, and a safety controller may be connected to the field network 20.
- an operation pendant 300 for operating the robot 200 is connected to the field network 20.
- EtherCAT registered trademark
- EtherNet / IP protocols for industrial networks
- the control device 100 may be connected to the support device 400, the display device 500, and the server device 600 via the host network 12.
- a protocol for an industrial network EtherNet / IP, or the like can be used.
- FIG. 3 is a schematic diagram showing a hardware configuration example of the control device 100 constituting the robot control system 1 according to the present embodiment.
- the control device 100 includes a processor 102, a main memory 104, a storage 110, a memory card interface 112, an upper network controller 106, a field network controller 108, a local bus controller 116, and a USB. Includes a USB controller 120 that provides a (Universal Serial Bus) interface. These components are connected via the processor bus 118.
- a USB controller 120 that provides a (Universal Serial Bus) interface.
- the processor 102 corresponds to an arithmetic processing unit that executes control operations, and is composed of a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), and the like. Specifically, the processor 102 reads a program stored in the storage 110, expands it in the main memory 104, and executes it to realize a control operation for a controlled object.
- a CPU Central Processing Unit
- GPU Graphics Processing Unit
- the main memory 104 is composed of a volatile storage device such as a DRAM (Dynamic Random Access Memory) or a SRAM (Static Random Access Memory).
- the storage 110 is composed of, for example, a non-volatile storage device such as an SSD (Solid State Drive) or an HDD (Hard Disk Drive).
- the storage 110 stores a system program 1102 for realizing basic functions, an IEC program 1104 created according to a control target, and the like.
- the IEC program 1104 may include sequence instructions and / or motion instructions.
- the "IEC program” is used to mean a program that defines the processing executed by a general PLC (programmable logic controller).
- the IEC program means a program written in any language defined by IEC 61131-3 defined by the International Electrotechnical Commission (IEC).
- the IEC program may include a program written in a manufacturer's own language other than the language specified in IEC61131-3.
- the storage 110 may further store the robot program 1108 and the setting information 1109 for controlling the behavior of the robot 200.
- the robot program 1108 may be written in a predetermined programming language (for example, a programming language for robot control such as V + language or a programming language related to NC control such as G code).
- the setting information 1109 includes various setting values (for example, speed limit value, acceleration limit value, jerk limit value, etc.) for the robot 200.
- the memory card interface 112 accepts a memory card 114, which is an example of a removable storage medium.
- the memory card interface 112 can read and write arbitrary data to and from the memory card 114.
- the upper network controller 106 exchanges data with an arbitrary information processing device (support device 400, display device 500, server device 600, etc. shown in FIG. 2) via the upper network.
- an arbitrary information processing device support device 400, display device 500, server device 600, etc. shown in FIG. 2
- the field network controller 108 exchanges data with an arbitrary device such as a robot 200 via the field network 20.
- the field network controller 108 may function as a communication master of the field network 20.
- the local bus controller 116 exchanges data with and from an arbitrary functional unit 130 constituting the control device 100 via the local bus 122.
- the functional unit 130 is, for example, an analog I / O unit that is in charge of input and / or output of an analog signal, a digital I / O unit that is in charge of input and / or output of a digital signal, a counter unit that receives pulses from an encoder, and the like. And so on.
- the USB controller 120 exchanges data with an arbitrary information processing device via a USB connection.
- FIG. 4 is a schematic diagram showing a hardware configuration example of the robot 200 constituting the robot control system 1 according to the present embodiment.
- FIG. 4 shows a configuration example when a custom robot 200A is adopted as the robot 200.
- the custom robot 200A is connected to the robot controller 250.
- the custom robot 200A and the robot controller 250 may be integrally configured or may be configured as separate bodies.
- the custom robot 200A includes a drive circuit 220 according to the number of shafts or joints, and a motor 230 driven by the drive circuit 220.
- Each of the drive circuits 220 includes a converter circuit, an inverter circuit, and the like, generates electric power having a voltage, current, and phase specified according to a command value from the robot controller 250, and supplies the electric power to the motor 230.
- Each of the motors 230 is an actuator that is mechanically coupled to any shaft or joint of the arm portion 210 constituting the custom robot 200A and drives the corresponding shaft or joint by the rotation of the motor 230.
- the motor 230 a motor having characteristics according to the arm portion 210 to be driven can be adopted.
- the motor 230 any of an inductive motor, a synchronous motor, a permanent magnet type motor, and a reluctance motor may be adopted, and not only a rotary type but also a linear motor may be adopted.
- a drive circuit 220 corresponding to the motor 230 to be driven is adopted.
- the robot controller 250 includes a field network controller 252 and a control processing circuit 260.
- the field network controller 252 mainly exchanges data with the control device 100 via the field network 20.
- the control processing circuit 260 executes arithmetic processing necessary for driving the custom robot 200A.
- the control processing circuit 260 includes a processor 262, a main memory 266, a storage 270, and an interface circuit 268.
- the processor 262 executes a control operation for driving the custom robot 200A.
- the main memory 266 is composed of, for example, a volatile storage device such as a DRAM or SRAM.
- the storage 270 is composed of, for example, a non-volatile storage device such as an SSD or an HDD.
- the storage 270 stores a robot system program 2702 for realizing control for driving the robot 200, and setting information 2704 including a group of setting parameters required for processing by the robot controller 250.
- the interface circuit 268 gives a command value to each drive circuit 220.
- the interface circuit 268 and the drive circuit 220 may be electrically connected by a hard wire or may be connected by a data link.
- FIG. 5 is a schematic diagram showing another hardware configuration example of the robot 200 constituting the robot control system 1 according to the present embodiment.
- FIG. 5 shows a configuration example when a general-purpose robot 200B is adopted as the robot 200.
- the general-purpose robot 200B incorporates one or more motors and drive circuits (not shown), and when the target trajectory of the general-purpose robot 200B is instructed, it corresponds to the instructed target trajectory. Drive one or more motors.
- FIG. 6 is a schematic view showing a hardware configuration example of the operation pendant 300 constituting the robot control system 1 according to the present embodiment.
- the operation pendant 300 includes a field network controller 352, a control processing circuit 360, and an operation key group 380.
- the field network controller 352 mainly exchanges data with the control device 100 via the field network 20.
- the control processing circuit 360 includes a processor 362, a main memory 366, firmware 370, and an interface circuit 368.
- the processor 362 realizes the processing required for the operation pendant 300 by executing the firmware 370.
- the main memory 366 is composed of, for example, a volatile storage device such as a DRAM or SRAM.
- the interface circuit 368 exchanges signals with the operation key group 380.
- the operation key group 380 is an input device that accepts user operations.
- the operation key group 380 may include an indicator or the like indicating an input state.
- FIG. 7 is a schematic view showing a hardware configuration example of the support device 400 constituting the robot control system 1 according to the present embodiment.
- the support device 400 is a development support device for developing a program or the like executed by the control device 100, and may be realized by using a general-purpose personal computer as an example.
- the support device 400 includes a processor 402, a main memory 404, an input unit 406, a display unit 408, a storage 410, an optical drive 412, a USB controller 420, and a communication controller 422. include. These components are connected via the processor bus 418.
- the processor 402 is required for the support device 400 by reading a program (OS 4102 and development program 4104, for example) stored in the storage 410, which is composed of a CPU, a GPU, or the like, and deploying and executing the program in the main memory 404. Various functions are realized.
- a program OS 4102 and development program 4104, for example
- the main memory 404 is composed of, for example, a volatile storage device such as a DRAM or SRAM.
- the storage 410 is composed of, for example, a non-volatile storage device such as an HDD or SSD.
- the storage 410 stores an OS 4102 for realizing basic functions, a development program 4104 for realizing a development environment, and the like.
- an OS 4102 for realizing basic functions e.g., a development program 4104 for realizing a development environment, and the like.
- the development environment it is possible to create a program executed by the control device 100, debug the program, set the operation of the control device 100, set the operation of the device connected to the control device 100, and set the field network 20. It has become.
- the input unit 406 is composed of a keyboard, a mouse, etc., and accepts user operations.
- the display unit 408 is composed of a display, various indicators, and the like, and displays processing results and the like by the processor 402.
- the USB controller 420 exchanges data with the control device 100 and the like via the USB connection.
- the communication controller 422 exchanges data with an arbitrary information processing device via the host network 12.
- the support device 400 has an optical drive 412, and is stored in a storage medium 414 (for example, an optical storage medium such as a DVD (Digital Versatile Disc)) that temporarily stores a computer-readable program.
- a storage medium 414 for example, an optical storage medium such as a DVD (Digital Versatile Disc)
- the stored program is read and installed in the storage 410 or the like.
- the development program 4104 or the like executed by the support device 400 may be installed via a computer-readable storage medium 414, or may be installed by downloading from a server device or the like on the network. Further, the function provided by the support device 400 according to the present embodiment may be realized by using a part of the modules provided by the OS 4102.
- support device 400 may be removed from the control device 100 while the robot control system 1 is in operation.
- the display device 500 constituting the robot control system 1 according to the present embodiment may be realized by using a general-purpose personal computer as an example. Since the basic hardware configuration example of the display device 500 is the same as the hardware configuration example of the support device 400 shown in FIG. 7, detailed description is not given here.
- the server device 600 constituting the robot control system 1 according to the present embodiment may be realized by using a general-purpose personal computer as an example. Since the basic hardware configuration example of the server device 600 is the same as the hardware configuration example of the support device 400 shown in FIG. 7, detailed description is not given here.
- FIGS. 3 to 7 show configuration examples in which necessary functions are provided by executing a program by one or more processors, and some or all of these provided functions are provided by dedicated hardware. It may be implemented using a hardware circuit (for example, ASIC (Application Specific Integrated Circuit) or FPGA (Field-Programmable Gate Array)).
- ASIC Application Specific Integrated Circuit
- FPGA Field-Programmable Gate Array
- the main part of the control device 100 may be realized by using hardware that follows a general-purpose architecture (for example, an industrial personal computer based on a general-purpose personal computer).
- a general-purpose architecture for example, an industrial personal computer based on a general-purpose personal computer.
- virtualization technology may be used to execute a plurality of OSs having different uses in parallel, and to execute necessary applications on each OS.
- a configuration in which functions such as a support device 400 and a display device 500 are integrated with the control device 100 may be adopted.
- FIG. 8 is a schematic diagram showing an example of a functional configuration for controlling the behavior of the robot 200 in the robot control system 1 according to the present embodiment.
- a command 158 or the like for controlling the robot 200 is exchanged between the control device 100 and one or a plurality of robot controllers 250.
- the control device 100 includes an IEC program execution engine 150, a robot program execution engine 152, a communication control module 160, a communication driver 162, and an external communication interface 164. These elements may typically be realized by the processor 102 of the control device 100 executing the system program 1102.
- the IEC program execution engine 150 periodically generates an output value given to the robot controller 250 by executing the IEC program 1104. More specifically, the IEC program execution engine 150 cyclically executes the IEC program 1104 at predetermined control cycles. The control cycle of the control device 100 is typically assumed to be about several hundred ⁇ sec to several hundred msec.
- the IEC program execution engine 150 outputs an internal command (for example, transmission start and transmission stop of the command 158) to the robot program execution engine 152 according to the execution of the IEC program 1104, and / or the state from the robot program execution engine 152.
- the value (for example, the state of the robot program 1108 being executed by the robot program execution engine 152) is acquired.
- the robot program execution engine 152 generates a command 158 instructing the behavior of the robot 200 by executing the robot program 1108. That is, the robot program execution engine 152 sequentially executes the robot program 1108, and transmits a command 158 or the like for controlling the robot 200 to one or a plurality of robot controllers 250. More specifically, the robot program execution engine 152 includes a robot program interpretation module 154 and a command generation module 156.
- the robot program interpretation module 154 sequentially reads and parses the robot program 1108, and outputs the internal command obtained by the parse to the command generation module 156.
- the robot program interpretation module 154 can interpret instructions related to signal input / output, file access, and communication in addition to instructions related to the behavior of the robot 200 described in the programming language included in the robot program 1108.
- the start and stop of reading the robot program 1108 by the robot program interpretation module 154 may be controlled by the command generation module 156.
- the command generation module 156 generates commands 158 for each of the robot controllers 250 according to internal commands from the robot program interpretation module 154.
- the command generation module 156 responds to an operation command (internal command) from the operation pendant 300 and an internal command from the support device 400 in addition to the internal command from the robot program interpretation module 154, and commands 158 for each of the robot controller 250. Can also be generated.
- the command generation module 156 can receive internal commands from a plurality of sources and generate a command 158. Which source the command generation module 156 generates the command 158 according to the internal command is determined by the source selection function 157 of the command generation module 156. That is, the source selection function 157 activates any one of the plurality of sources. The details of the source selection function 157 will be described later.
- the command generation module 156 functions as a host for one or more connected robot controllers 250. More specifically, the command generation module 156 is an internal command exchanged with the IEC program execution engine 150 and / or an internal command exchanged with the support device 400 via the external communication interface 164. In response to this, the robot program interpretation module 154 controls the start and stop of execution of the robot program 1108, and also controls the start and stop of the generation of the command 158 for the robot controller 250.
- the command generation module 156 may collect information such as state values and errors from the robot controller 250.
- the communication control module 160 and the communication driver 162 correspond to a communication unit that transmits a command 158 generated according to information from an activated source among a plurality of sources to the robot controller 250. In addition to the command 158, the communication control module 160 and the communication driver 162 also transmit the output value from the IEC program execution engine 150 to the robot controller 250.
- the communication control module 160 manages the exchange of data with one or a plurality of connected robot controllers 250.
- the communication control module 160 may generate a communication instance that manages data communication for each connected robot controller 250, and may manage data communication using the generated communication instance.
- the communication driver 162 is an internal interface that uses the field network controller 108 (see FIG. 3) to perform data communication with one or a plurality of connected robot controllers 250.
- Each of the robot controllers 250 includes a communication control module 280, a communication driver 282, a robot drive engine 284, and a signal output driver 292. These elements may typically be realized by the processor 262 (control processing circuit 260) of the robot controller 250 executing the robot system program 2702.
- the communication control module 280 manages the exchange of data with the connected control device 100.
- the communication control module 280 may generate a communication instance that manages data communication with the connected control device 100, and may manage data communication using the generated communication instance.
- the communication driver 282 is an internal interface that performs data communication with the connected control device 100 by using the field network controller 252 (see FIG. 4).
- the communication control module 280 and the communication driver 282 correspond to a communication unit that receives a command 158 transmitted from the control device 100.
- the robot drive engine 284 refers to the setting information 2704 previously transmitted from the control device 100 according to the command 158 from the control device 100, and sets the robot 200 to be controlled (including: the custom robot 200A and / or the general-purpose robot 200B). Execute the process for driving. More specifically, the robot drive engine 284 includes a management module 286, a target trajectory generation module 288, and a command value generation module 290.
- the management module 286 corresponds to a processing execution unit that executes processing according to an output value from the control device 100. More specifically, the management module 286 manages the control mode, the start / end of the generation of the target trajectory from the command 158, and the like according to the output value from the control device 100.
- the target trajectory generation module 288 (target trajectory generation unit) generates a target trajectory of the robot 200 to be controlled (including: custom robot 200A and / or general-purpose robot 200B) according to the command 158 from the control device 100.
- the generated target trajectory is typically the hourly position of the tip of the robot 200 (change in position with respect to time) and / or the hourly velocity of the tip of the robot 200 (change in velocity with respect to time). ) Etc. are included.
- the target trajectory generation module 288 may output the generated target trajectory to the command value generation module 290 (typically when driving the custom robot 200A shown in FIG. 4), or via the signal output driver 292. It may be output directly to the robot 200 (typically, when driving the general-purpose robot 200B shown in FIG. 5).
- the command value generation module 290 sequentially generates command values for driving each axis of the robot 200 so as to realize the behavior instructed by the command 158 from the control device 100. More specifically, the command value generation module 290 sequentially generates command values for each of the motors 230 constituting the robot 200 to be controlled according to the target trajectory generated by the target trajectory generation module 288. The command value generation module 290 may update the command value at a predetermined control cycle or at a predetermined event.
- the control cycle of the target trajectory generation module 288 of the robot controller 250 is typically assumed to be about several hundred ⁇ sec to several hundred msec, which is about the same as the control cycle of the control device 100. On the other hand, it is assumed that the control cycle of the command value generation module 290 of the robot controller 250 is faster than the control cycle of the target trajectory generation module 288 (for example, about several to ten and several times).
- the command value generation module 290 calculates each command value given to the motor 230 for driving the robot 200 along the target trajectory based on the kinematics of the robot 200 to be controlled.
- the command value generation module 290 sets the target position (change in position / angle with respect to time), target speed (change in speed / angular velocity with respect to time), and target acceleration (change in acceleration / angular acceleration with respect to time) as command values given to the motor 230. ) And / or the target acceleration (change in jerk / angular jerk with time) and so on.
- the robot drive engine 284 may acquire the parameters necessary for calculating the target trajectory and / or the command value with reference to the setting information 2704 (see FIG. 4).
- the signal output driver 292 utilizes an interface circuit 268 (see FIG. 4) to output a command value and / or a target trajectory to one or more connected drive circuits 220 and / or a robot 200 internally. It is an interface.
- the robot program 1108 is a program for controlling the behavior of the robot 200.
- the behavior of the robot 200 for example, the timing for starting / stopping the operation of the robot 200, the conditions for operating the robot 200 (for example, the linkage with the equipment in the pre-process or the post-process), and so on. It is also necessary to control the safety conditions and the like related to the robot 200.
- the IEC program 1104 may include logic for collecting state values related to the operation of the robot 200 and determining the timing for starting / stopping the operation of the robot 200.
- FIG. 9 is a diagram showing an example of the IEC program 1104 and the robot program 1108 executed by the control device 100 constituting the robot control system 1 according to the present embodiment.
- FIG. 9A shows an example of the IEC program 1104 described in a ladder diagram (LD language).
- the example of the IEC program 1104 shown in FIG. 9A includes instructions relating to a process of turning on the power of the robot 200 to be controlled and a process of executing calibration of the robot 200 to be controlled.
- the IEC program 1104 may include a function block as an element.
- the IEC program 1104 may include code written in structured text (ST language).
- FIG. 9B shows an example of a robot program 1108 written in V + language.
- the V + language is a kind of high-level language for controlling the behavior of the robot 200.
- FIG. 10 is a time chart showing an execution example of a program in the control device 100 constituting the robot control system 1 according to the present embodiment.
- the IEC program execution engine 150 and the robot program execution engine 152 execute the processes independently.
- the IEC program execution engine 150 cyclically executes (repeatedly executes) the IEC program 1104 every predetermined control cycle T1.
- the cyclic execution of the IEC program 1104 includes an output update process 1502 and an input update process 1504.
- the output update process 1502 includes a process of reflecting the output value determined by the execution of the IEC program 1104 on the internal variables and / or the target device.
- the output value for the device connected via the field network 20 is stored in the communication frame and transmitted on the field network 20.
- the input update process 1504 includes a process of acquiring an input value (state value) necessary for executing the IEC program 1104 from an internal variable and / or a target device.
- the input value from the device connected via the field network 20 is acquired from the communication frame propagating on the field network 20.
- the communication control module 160 sends out a communication frame on the field network 20 in synchronization with the control cycle T1 and receives the communication frame that circulates on the field network 20 and returns.
- the communication control module 160 stores the output value generated by the IEC program execution engine 150 and / or the command 158 generated by the command generation module 156 in the communication frame and is included in the returned communication frame.
- the input value (state value) is held so that the IEC program execution engine 150 and the command generation module 156 can refer to it.
- the command generation module 156 generates a command 158 according to an internal command from the robot program interpretation module 154. Typically, the timing at which the command generation module 156 generates the command 158 is determined by the output value from the IEC program execution engine 150. In the example shown in FIG. 10, an example is shown in which the IEC program execution engine 150 generates a command 158 in response to an output value from the IEC program execution engine 150. The generation of the command 158 by the IEC program execution engine 150 may be synchronized with the timing of the output update process 1502 of the IEC program execution engine 150.
- the robot program interpretation module 154 typically executes the robot program 1108 independently of the control cycle T1.
- the start / stop of execution of the robot program 1108 by the robot program interpretation module 154 may be controlled by the command generation module 156.
- the robot program execution engine 152 sequentially executes the robot program 1108.
- the IEC program execution engine 150 cyclically executes the IEC program 1104 independently of the execution of the robot program 1108 by the robot program execution engine 152.
- Source selection function> Next, a specific example of the source selection function 157 will be described.
- FIG. 11 is a schematic diagram illustrating data processing including a source selection function 157 in the robot control system 1 according to the present embodiment.
- the robot program execution engine 152 of the control device 100 includes a robot program 1108 written in a predetermined programming language, an operation command (internal command) from the operation pendant 300, a support device 400, and an IEC program execution. An internal command from the engine 150 is input.
- the source selection function 157 of the command generation module 156 selects from which source the command 158 is generated from a plurality of sources.
- the robot program 1108 When the robot program 1108 is selected as the source, the robot program 1108 is first input to the robot program interpretation module 154. Then, the robot program interpretation module 154 interprets the robot program 1108 and generates an internal command. Further, the command generation module 156 generates a command 158 from the generated internal command.
- the robot program interpretation module 154 program interpretation unit that sequentially executes the robot program 1108 is the source.
- the robot program execution engine 152 has a different robot program 1108 for each robot 200. Entered. Further, in a production facility in which a plurality of the same production lines are arranged in parallel and a robot 200 that performs the same work is arranged in each production line, the robot program execution engine 152 is common. Robot program 1108 may be input. However, the generated commands 158 may be independently transmitted to the robot controller 250.
- a plurality of robot programs 1108 described in different programming languages may be input to the robot program execution engine 152.
- the robot program execution engine 152 can generate a command 158 written according to a common command system even when a robot program 1108 written in a different programming language is input.
- the robot program execution engine 152 may be configured to be able to interpret a plurality of programming languages, and may generate commands 158 according to a predetermined command system without depending on the programming languages. ..
- the operation pendant 300 (operation unit) that is connected to the control device 100 via the network and generates the operation command according to the user operation is the source.
- the operation pendant 300 is used to perform an operation (teaching operation) for determining the behavior of the robot 200 or the like. Therefore, the operation pendant 300 outputs, for example, an operation command such as moving the tip of the robot 200 in any direction.
- the command generation module 156 generates a command 158 for moving the tip of the robot 200 in a designated direction according to an operation command from the operation pendant 300.
- an internal command generated by the support device 400 is input to the command generation module 156.
- the command generation module 156 generates a command 158 according to an internal command from the support device 400.
- the generation of the internal command by the support device 400 may be realized by the processor 402 of the support device 400 executing the development program 4104, or the internal command may be generated by the user explicitly following. ..
- the support device 400 (development support device) that is connected to the control device 100 and provides information according to the user operation or program execution is the source. Become.
- the value is input to the command generation module 156 as an internal command. For example, when a certain condition is satisfied, an output value for stopping the robot 200 may be input to the command generation module 156, and a command 158 corresponding to the output value may be output to the robot controller 250.
- the source selection function 157 activates the source for generating the command 158 among the plurality of sources.
- the source in which the command 158 is generated is not limited to the above three, and for example, the IEC program 1104 (or the IEC program execution engine 150) that directly outputs the internal command that is directly output may be used as the source.
- the IEC program 1104 or the IEC program execution engine 150
- each of them can be an independent source.
- the external device is not limited to the support device 400, and any information processing device such as an HMI (human machine interface) may be adopted.
- Command 158 may be generated for one or more connected robot controllers 250, respectively.
- the generated command 158 is transmitted to the corresponding robot controller 250 via the field network 20 (see FIG. 2).
- a command 158 is transmitted to each of the plurality of robot controllers 250.
- the target trajectory generation module 288 of the robot controller 250 generates a target trajectory according to the command 158 from the control device 100.
- the generated target trajectory may be output to the general-purpose robot 200B as it is. That is, the robot controller 250 may output the target trajectory to the outside.
- the command value generation module 290 of the robot controller 250 generates command values for each of the motors 230 constituting the robot 200 to be controlled according to the generated target trajectory.
- Any command system can be adopted as the command system for defining the command 158. From the viewpoint of reducing the processing related to the generation of the command 158, it is preferable to adopt a command group that can be easily generated from the instructions described in the robot program 1108.
- FIG. 12 is a schematic diagram showing an implementation example of the source selection function 157 in the robot control system 1 according to the present embodiment.
- the source selection function 157 included in the command generation module 156 includes an internal selector 1572 and a selection flag 1574.
- the internal selector 1572 selects and outputs one source according to the value of the selection flag 1574 from the plurality of input sources.
- the value of the selection flag 1574 can be updated in response to a command from the IEC program execution engine 150 and / or the support device 400.
- the source selected by the internal selector 1572 is connected to the command generation engine 1562, which is the actual generation of the command 158.
- the command generation engine 1562 generates a command 158 according to an internal command from the selected source or the like.
- the source to be enabled may be selected or determined from the plurality of sources by the command from the IEC program execution engine 150 and / or the support device 400.
- the source selection function 157 of the command generation module 156 activates a specific source according to a command given to the control device 100 from the outside.
- the source selection function 157 of the command generation module 156 may determine the source to be enabled according to a predetermined setting.
- the priority order such as operation pendant 300> support device 400> IEC program execution engine 150> robot program 1108 is set in advance, and is the highest when an internal command or the like is input from a plurality of sources. You may enable priority sources.
- the operation pendant 300 when the operation by the operation pendant 300 is given the highest priority, the operation pendant 300 can be operated by the user even if the command 158 is generated by the execution of the robot program 1108.
- the operation of is prioritized. Such processing according to the priority is suitable for the robot 200 or the like, which requires frequent user intervention.
- the command value generation characteristics for driving each axis of the robot 200 may be different depending on which source is enabled by the source selection function 157 of the command generation module 156.
- the source to be enabled may be determined according to a predetermined priority. For example, if the operation command from the operation pendant 300 and the internal command from the robot program execution engine 152 conflict with each other in the state where the priority order is set as described above, the operation command from the operation pendant 300 has priority. Will be done.
- the predetermined setting may include the priority for the source.
- the source selection function 157 may enable a source having a higher priority when information is provided from each of the plurality of sources. According to this configuration, the source from which the command is generated can be automatically determined according to the priority.
- FIG. 13 is a diagram showing an example in which the generation characteristics of command values in the robot control system 1 according to the present embodiment are different.
- the permissible upper limit speed may be different for each source. Depending on the source being activated, the corresponding upper speed limit may be applied.
- FIG. 14 is a schematic diagram showing a configuration example in which the control device 100 of the robot control system 1 according to the present embodiment has different command value generation characteristics.
- the storage 110 of the control device 100 includes, as setting information 1109, a parameter set for each source corresponding to the command value generation characteristic as shown in FIG.
- the command generation engine 1562 included in the command generation module 156 selects the parameter set corresponding to the selection flag 1574 with reference to the value of the selection flag 1574.
- the command generation engine 1562 refers to the selected parameters and generates commands 158 from internal commands from the enabled source.
- This generated command 158 corresponds to the selected parameter.
- the generated command 158 includes instructions such as an upper speed limit specified in the corresponding parameter.
- the command 158 corresponding to the selected source is generated.
- the generation characteristics of the command value output from the robot controller 250 can be made different depending on the source.
- FIG. 15 is a schematic diagram showing another configuration example in which the generation characteristics of command values are different in the control device 100 of the robot control system 1 according to the present embodiment.
- the management module 286 of the control device 100 has a selection flag 2864.
- the value of the selection flag 1574 possessed by the command generation module 156 (control device 100) is notified to the robot controller 250, and the value of the selection flag 2864 is reflected in the notified value.
- the value of the selection flag 1574 is notified from the control device 100 to the robot controller 250 via the field network 20. In this way, the value of the selection flag 1574 of the control device 100 is reflected in the selection flag 2864 of the robot controller 250. That is, the communication unit 50 of the control device 100 notifies the robot controller 250 which source is enabled by the source selection function 157.
- the management module 286 of the robot controller 250 includes a parameter set for each source corresponding to the command value generation characteristic as shown in FIG. 13 as the setting information 2704.
- the management module 286 selects the parameter set corresponding to the value of the selection flag 2864 from the parameter set for each source.
- the target trajectory generation module 288 and / or the command value generation module 290 (see FIG. 8) performs processing with reference to the selected parameter set.
- the updated value is reflected in the selection flag 2864. Then, by selecting and referencing the parameter set corresponding to the selection flag 2864, the generation characteristics of the command value output from the robot controller 250 can be made different depending on the source.
- control device 100 In the control device 100, the processing by the IEC program execution engine 150 and the processing by the robot program execution engine 152 (robot program interpretation module 154 and command generation module 156) are executed in parallel.
- FIG. 16 is a flowchart showing a processing procedure by the IEC program execution engine 150 of the control device 100 constituting the robot control system 1 according to the present embodiment. Each step shown in FIG. 16 may typically be realized by the processor 102 of the control device 100 executing the system program 1102.
- the control device 100 determines whether or not the next control cycle has arrived (step S100). If the next control cycle has not arrived (NO in step S100), the control device 100 waits for processing until the next control cycle arrives.
- control device 100 If the next control cycle has arrived (YES in step S100), the control device 100 outputs the output value determined by the execution of the IEC program 1104 in the previous control cycle (step S102).
- the process of outputting the output value includes a process of updating the value of the selection flag 1574 (see FIG. 12) of the robot program execution engine 152.
- control device 100 acquires the latest input value (step S104), and determines the output value by executing the IEC program 1104 using the acquired latest input value (step S106). Then, the process of step S100 or less is repeated.
- FIG. 17 is a flowchart showing a processing procedure by the robot program execution engine 152 of the control device 100 constituting the robot control system 1 according to the present embodiment. Each step shown in FIG. 17 may typically be realized by the processor 102 of the control device 100 executing the system program 1102.
- the control device 100 acquires the value of the selection flag 1574 (step S150).
- the value of the selection flag 1574 may be updated by the IEC program execution engine 150, or may be updated by a command from an external device such as the support device 400.
- the control device 100 determines which source the value of the selection flag 1574 corresponds to (step S152). That is, the control device 100 activates any one of the plurality of sources that provide information for generating the command 158.
- the control device 100 sequentially reads the target robot program 1108 (step S154), and reads the read robot program 1108. It parses and generates an internal command (step S156). Further, the control device 100 generates a command 158 according to the generated internal command (step S158).
- the control device 100 acquires an operation command (internal command) from the operation pendant 300 (step S160).
- the command 158 is generated according to the acquired operation command (step S162).
- control device 100 acquires an internal command from the support device 400 (step S164), and the acquired operation command.
- Command 158 is generated according to the internal command corresponding to (step S166).
- the control device 100 determines whether or not the output start condition of the command 158 is satisfied (step S168).
- the output start condition of the command 158 may be specified by appropriately combining an output value from the IEC program execution engine 150, an input value from the robot controller 250, a command from the support device 400, and any other information.
- step S168 the control device 100 determines whether or not the next control cycle has arrived. If the next control cycle has not arrived (NO in step S170), the control device 100 waits for processing until the next control cycle arrives.
- step S172 the control device 100 outputs a command 158 generated in advance (step S172).
- step S168 If the output start condition of the command 158 is not satisfied (NO in step S168), the control device 100 skips the processes of steps S170 and S172.
- FIG. 18 is a flowchart showing a processing procedure in the robot controller 250 constituting the robot control system 1 according to the present embodiment. Each step shown in FIG. 18 may be realized by the processor 262 (control processing circuit 260) of the robot controller 250 executing the robot system program 2702.
- the processing by the target trajectory generation module 288 and the processing by the command value generation module 290 are executed in parallel.
- the robot controller 250 determines whether or not a command 158 has been received from the control device 100 (step S200). That is, the robot controller 250 executes a process of receiving the command 158 transmitted from the control device 100.
- step S200 If the command 158 has not been received from the control device 100 (NO in step S200), the robot controller 250 repeats the process of step S200.
- step S200 If the command 158 is received from the control device 100 (YES in step S200), the robot controller 250 determines whether or not all of the commands 158 have been received (step S202). If only a part of the command 158 is received (NO in step S202), the robot controller 250 repeats the processes of step S200 and the following.
- step S202 If all of the commands 158 have been received (YES in step S202), the robot controller 250 generates a target trajectory according to the received command 158 (step S204). Then, the process of step S200 or less is repeated.
- the robot controller 250 determines whether or not the next control cycle has arrived (step S250). If the next control cycle has not arrived (NO in step S250), the robot controller 250 waits for processing until the next control cycle arrives.
- the robot controller 250 determines whether or not the output condition of the command value for the robot 200 is satisfied (step S252).
- the output condition of the command value for the robot 200 is an appropriate combination of the latest output value transmitted from the control device 100, the state value held by the management module 286, the state value acquired by the robot controller 250, and any other information. It may be specified.
- step S252 If the output condition of the command value for the robot 200 is not satisfied (NO in step S252), the robot controller 250 skips the processes of steps S254 and S256.
- step S252 If the output condition of the command value for the robot 200 is satisfied (YES in step S252), the robot controller 250 will realize the behavior instructed by the command 158 from the control device 100.
- Command values for driving the shaft are sequentially generated (steps S254 to S256). More specifically, the robot controller 250 generates a command value for each of the motors 230 constituting the robot 200 to be controlled according to a target trajectory generated in advance (step S254). Then, the robot controller 250 outputs each generated command value (step S256).
- Robot control system (1) The first control device (100) and A second control device (250) for controlling the robot (200), which is network-connected to the first control device, is provided.
- the first control device is A selection unit (157) that activates one of a plurality of sources that provides information for generating a command (158) that directs the behavior of the robot, and a selection unit (157).
- a first communication unit (50) for transmitting a command generated according to information from an activated source among the plurality of sources to the second control device is provided.
- the second control device is A second communication unit (60) that receives the command transmitted from the first control device, and A robot control including a command value generation unit (290) that sequentially generates command values for driving each axis of the robot so as to realize the behavior instructed by the command from the first control device. system.
- the predetermined settings include priorities for the source.
- a control method in a robot control system (1) including a first control device (100) and a second control device (250) connected to the first control device via a network to control the robot (200). And A step (S152) in which the first control device activates one of a plurality of sources for providing information for generating a command instructing the behavior of the robot. A step (S172) in which the first control device transmits a command generated according to information from an activated source among the plurality of sources to the second control device.
- the robot control system 1 since a plurality of sources can be selectively enabled, the robot 200 can be controlled not only by the original robot program 1108 but also according to information from other sources. As a result, the robot control system 1 can be operated flexibly.
- the control device 100 and the robot controller 250 cooperate to control the behavior of the robot 200.
- the processing load can be distributed.
- the behavior of the plurality of robots 200 can be controlled even if the processing capacity of the control device 100 is not high.
- 1 robot control system 12 upper network, 20 field network, 50, 60 communication unit, 100 control device, 102, 262,362,402 processor, 104,266,366,404 main memory, 106 upper network controller, 108,252 , 352 field network controller, 110, 270, 410 storage, 112 memory card interface, 114 memory card, 116 local bus controller, 118,418 processor bus, 120, 420 USB controller, 122 local bus, 130 functional unit, 150 IEC program Execution engine, 152 Robot program execution engine, 154 Robot program interpretation module, 156 Command generation module, 157 Source selection function, 158 commands, 160,280 Communication control module, 162,282 Communication driver, 164 External communication interface, 200 Robot, 200A Custom robot, 200B general-purpose robot, 210 arm, 220 drive circuit, 230 motor, 250 robot controller, 260, 360 control processing circuit, 268, 368 interface circuit, 284 robot drive engine, 286 management program, 288 target trajectory generation program, 290 command value generation module, 292 signal output driver, 300 operation pendant,
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Abstract
Description
まず、本技術が適用される場面の一例について説明する。図1は、本実施の形態に係るロボット制御システム1の概略を示す模式図である。
次に、本実施の形態に係るロボット制御システム1の構成例について説明する。
次に、図2に示すロボット制御システム1を構成する主要装置のハードウェア構成例について説明する。
図3は、本実施の形態に係るロボット制御システム1を構成する制御装置100のハードウェア構成例を示す模式図である。図3を参照して、制御装置100は、プロセッサ102と、メインメモリ104と、ストレージ110と、メモリカードインターフェイス112と、上位ネットワークコントローラ106と、フィールドネットワークコントローラ108と、ローカルバスコントローラ116と、USB(Universal Serial Bus)インターフェイスを提供するUSBコントローラ120とを含む。これらのコンポーネントは、プロセッサバス118を介して接続されている。
(c2:ロボット200およびロボットコントローラ250)
図4は、本実施の形態に係るロボット制御システム1を構成するロボット200のハードウェア構成例を示す模式図である。図4には、ロボット200としてカスタムロボット200Aを採用した場合の構成例を示す。
図6は、本実施の形態に係るロボット制御システム1を構成する操作ペンダント300のハードウェア構成例を示す模式図である。図6を参照して、操作ペンダント300は、フィールドネットワークコントローラ352と、制御処理回路360と、操作キー群380とを含む。
操作キー群380は、ユーザ操作を受け付ける入力装置である。操作キー群380は、入力状態を示すインジケータなどを含んでいてもよい。
図7は、本実施の形態に係るロボット制御システム1を構成するサポート装置400のハードウェア構成例を示す模式図である。サポート装置400は、制御装置100で実行されるプログラムなどを開発するための開発支援装置であり、一例として、汎用パソコンを用いて実現されてもよい。
本実施の形態に係るロボット制御システム1を構成する表示装置500は、一例として、汎用パソコンを用いて実現されてもよい。表示装置500の基本的なハードウェア構成例は、図7に示すサポート装置400のハードウェア構成例と同様であるので、ここでは詳細な説明は行わない。
本実施の形態に係るロボット制御システム1を構成するサーバ装置600は、一例として汎用パソコンを用いて実現されてもよい。サーバ装置600の基本的なハードウェア構成例は、図7に示すサポート装置400のハードウェア構成例と同様であるので、ここでは詳細な説明は行わない。
図3~図7には、1または複数のプロセッサがプログラムを実行することで必要な機能が提供される構成例を示したが、これらの提供される機能の一部または全部を、専用のハードウェア回路(例えば、ASIC(Application Specific Integrated Circuit)またはFPGA(Field-Programmable Gate Array)など)を用いて実装してもよい。
ロボット200を制御するための機能構成の一例について説明する。
上述したように、ロボットプログラム1108は、ロボット200の挙動を制御するためのプログラムである。但し、ロボット200の挙動を制御するためには、例えば、ロボット200の動作を開始/停止するタイミング、ロボット200を動作させるための条件(例えば、前工程あるいは後工程にある設備との連係)、ロボット200に係るセーフティ条件などを制御する必要もある。
次に、ソース選択機能157の具体例について説明する。
ロボットプログラム1108がソースとして選択される場合には、まず、ロボットプログラム1108がロボットプログラム解釈モジュール154に入力される。そして、ロボットプログラム解釈モジュール154がロボットプログラム1108を解釈して内部コマンドを生成する。さらに、コマンド生成モジュール156は、生成された内部コマンドからコマンド158を生成する。
操作ペンダント300がソースして選択される場合には、操作ペンダント300に対するユーザ操作に対応する操作指令が、フィールドネットワーク20を介して制御装置100に入力される。そして、操作ペンダント300から受信した操作指令が内部コマンドとしてコマンド生成モジュール156に与えられる。コマンド生成モジュール156は、操作ペンダント300からの操作指令に従って、コマンド158を生成する。
サポート装置400がソースして選択される場合には、サポート装置400が生成する内部コマンドがコマンド生成モジュール156へ入力される。コマンド生成モジュール156は、サポート装置400からの内部コマンドに従って、コマンド158を生成する。サポート装置400による内部コマンドの生成は、サポート装置400のプロセッサ402が開発プログラム4104を実行することで実現されてもよいし、ユーザが明示的に沿いさすることで内部コマンドを発生してもよい。
IECプログラム実行エンジン150がソースして選択される場合には、IECプログラム実行エンジン150がIECプログラム1104を実行することで決定される出力値が、内部コマンドとしてコマンド生成モジュール156へ入力される。例えば、ある条件が成立した場合に、ロボット200を停止させるための出力値がコマンド生成モジュール156へ入力され、その出力値に対応するコマンド158がロボットコントローラ250へ出力されてもよい。
次に、ソース選択機能157の実装例および応用例について説明する。
次に、本実施の形態に係るロボット制御システム1における処理手順について説明する。
制御装置100においては、IECプログラム実行エンジン150による処理と、ロボットプログラム実行エンジン152(ロボットプログラム解釈モジュール154およびコマンド生成モジュール156)による処理とが並列して実行される。
図18は、本実施の形態に係るロボット制御システム1を構成するロボットコントローラ250における処理手順を示すフローチャートである。図18に示す各ステップは、ロボットコントローラ250のプロセッサ262(制御処理回路260)がロボットシステムプログラム2702を実行することで実現してもよい。
<I.付記>
上述したような本実施の形態は、以下のような技術思想を含む。
ロボット制御システム(1)であって、
第1の制御装置(100)と、
前記第1の制御装置とネットワーク接続され、ロボット(200)を制御するための第2の制御装置(250)とを備え、
前記第1の制御装置は、
ロボットの挙動を指示するコマンド(158)を生成するための情報を提供する複数のソースのうちいずれかのソースを有効化する選択部(157)と、
前記複数のソースのうち有効化されたソースからの情報に従って生成されたコマンドを前記第2の制御装置へ送信する第1の通信部(50)とを備え、
前記第2の制御装置は、
前記第1の制御装置から送信される前記コマンドを受信する第2の通信部(60)と、
前記第1の制御装置からの前記コマンドによって指示された挙動を実現するように、前記ロボットの各軸を駆動するための指令値を順次生成する指令値生成部(290)とを備える、ロボット制御システム。
前記複数のソースは、
ロボットプログラム(1108)を逐次実行するプログラム解釈部(154)と、
前記第1の制御装置とネットワーク接続され、ユーザ操作に応じて操作指令を生成する操作部(300)と、
前記第1の制御装置と接続され、ユーザ操作またはプログラム実行に応じて情報を提供する開発支援装置(400)と、
IECプログラム(1104)を実行するプログラム実行部(150)と、
のうち複数を含む、構成1に記載のロボット制御システム。
前記選択部は、前記第1の制御装置に外部から与えられる指令に従って、特定のソースを有効化する、構成1または2に記載のロボット制御システム。
前記選択部は、予め定められた設定に従って、有効化するソースを決定する、構成1~3のいずれか1項に記載のロボット制御システム。
前記予め定められた設定は、ソースについての優先順位を含み、
前記選択部は、複数のソースからそれぞれ情報が提供される場合に、より高い優先順位を有するソースを有効化する、構成4に記載のロボット制御システム。
前記第1の通信部は、前記選択部がいずれのソースを有効化しているかを、前記第2の制御装置へ通知する、構成1~5のいずれか1項に記載のロボット制御システム。
前記指令値生成部は、前記選択部がいずれのソースを有効化しているかに応じて、前記ロボットの各軸を駆動するための指令値の生成特性を異ならせる、構成6に記載のロボット制御システム。
第1の制御装置(100)と、前記第1の制御装置とネットワーク接続され、ロボット(200)を制御するための第2の制御装置(250)とを備えるロボット制御システム(1)における制御方法であって、
前記第1の制御装置が、ロボットの挙動を指示するコマンドを生成するための情報を提供する複数のソースのうちいずれかのソースを有効化するステップ(S152)と、
前記第1の制御装置が、前記複数のソースのうち有効化されたソースからの情報に従って生成されたコマンドを前記第2の制御装置へ送信するステップ(S172)と、
前記第2の制御装置が、前記第1の制御装置から送信される前記コマンドを受信するステップ(S200)と、
前記第2の制御装置が、前記第1の制御装置からの前記コマンドによって指示された挙動を実現するように、前記ロボットの各軸を駆動するための指令値を順次生成するステップ(S254~S256)とを備える、制御方法。
本実施の形態に係るロボット制御システム1においては、複数のソースを選択的に有効化できるので、本来のロボットプログラム1108による制御だけではなく、他のソースからの情報に従ってロボット200を制御できる。その結果、ロボット制御システム1をフレキシブルに運用できる。
Claims (8)
- ロボット制御システムであって、
第1の制御装置と、
前記第1の制御装置とネットワーク接続され、ロボットを制御するための第2の制御装置とを備え、
前記第1の制御装置は、
ロボットの挙動を指示するコマンドを生成するための情報を提供する複数のソースのうちいずれかのソースを有効化する選択部と、
前記複数のソースのうち有効化されたソースからの情報に従って生成されたコマンドを前記第2の制御装置へ送信する第1の通信部とを備え、
前記第2の制御装置は、
前記第1の制御装置から送信される前記コマンドを受信する第2の通信部と、
前記第1の制御装置からの前記コマンドによって指示された挙動を実現するように、前記ロボットの各軸を駆動するための指令値を順次生成する指令値生成部とを備える、ロボット制御システム。 - 前記複数のソースは、
ロボットプログラムを逐次実行するプログラム解釈部と、
前記第1の制御装置とネットワーク接続され、ユーザ操作に応じて操作指令を生成する操作部と、
前記第1の制御装置と接続され、ユーザ操作またはプログラム実行に応じて情報を提供する開発支援装置と、
IECプログラムを実行するプログラム実行部と、
のうち複数を含む、請求項1に記載のロボット制御システム。 - 前記選択部は、前記第1の制御装置に外部から与えられる指令に従って、特定のソースを有効化する、請求項1または2に記載のロボット制御システム。
- 前記選択部は、予め定められた設定に従って、有効化するソースを決定する、請求項1~3のいずれか1項に記載のロボット制御システム。
- 前記予め定められた設定は、ソースについての優先順位を含み、
前記選択部は、複数のソースからそれぞれ情報が提供される場合に、より高い優先順位を有するソースを有効化する、請求項4に記載のロボット制御システム。 - 前記第1の通信部は、前記選択部がいずれのソースを有効化しているかを、前記第2の制御装置へ通知する、請求項1~5のいずれか1項に記載のロボット制御システム。
- 前記指令値生成部は、前記選択部がいずれのソースを有効化しているかに応じて、前記ロボットの各軸を駆動するための指令値の生成特性を異ならせる、請求項6に記載のロボット制御システム。
- 第1の制御装置と、前記第1の制御装置とネットワーク接続され、ロボットを制御するための第2の制御装置とを備えるロボット制御システムにおける制御方法であって、
前記第1の制御装置が、ロボットの挙動を指示するコマンドを生成するための情報を提供する複数のソースのうちいずれかのソースを有効化するステップと、
前記第1の制御装置が、前記複数のソースのうち有効化されたソースからの情報に従って生成されたコマンドを前記第2の制御装置へ送信するステップと、
前記第2の制御装置が、前記第1の制御装置から送信される前記コマンドを受信するステップと、
前記第2の制御装置が、前記第1の制御装置からの前記コマンドによって指示された挙動を実現するように、前記ロボットの各軸を駆動するための指令値を順次生成するステップとを備える、制御方法。
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| JP3269003B2 (ja) * | 1997-05-12 | 2002-03-25 | 川崎重工業株式会社 | ロボット制御装置 |
| CA2719494C (en) * | 2008-04-02 | 2015-12-01 | Irobot Corporation | Robotics systems |
| CN102540982B (zh) * | 2011-12-30 | 2014-12-10 | 北京配天技术有限公司 | 一种运动控制卡和运动控制方法 |
| JP6696465B2 (ja) * | 2017-03-16 | 2020-05-20 | 株式会社安川電機 | コントロールシステム、コントローラ及び制御方法 |
| KR101923557B1 (ko) * | 2017-07-10 | 2018-11-29 | 주식회사 바른앱 | 블럭완구를 이용한 로봇 제어 시스템 |
| JP6946909B2 (ja) * | 2017-09-29 | 2021-10-13 | オムロン株式会社 | 制御システムおよび制御装置 |
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| JPH05334096A (ja) * | 1992-06-01 | 1993-12-17 | Fuji Electric Co Ltd | 言語翻訳プログラム及びその出力結果を用いるデバッグ装置 |
| JP2005202663A (ja) * | 2004-01-15 | 2005-07-28 | Denso Wave Inc | 制御用プログラム,コンパイラおよび変換プログラム |
| JP2015501025A (ja) * | 2011-10-05 | 2015-01-08 | オプテオン コーポレーション | 動的環境を監視及び/又は制御するための方法、装置、及びシステム |
| JP2018196908A (ja) | 2017-05-23 | 2018-12-13 | Juki株式会社 | 制御システム及び実装装置 |
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