WO2023136276A1 - 作業機械の遠隔操作システム及び作業機械の遠隔操作方法 - Google Patents
作業機械の遠隔操作システム及び作業機械の遠隔操作方法 Download PDFInfo
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- WO2023136276A1 WO2023136276A1 PCT/JP2023/000546 JP2023000546W WO2023136276A1 WO 2023136276 A1 WO2023136276 A1 WO 2023136276A1 JP 2023000546 W JP2023000546 W JP 2023000546W WO 2023136276 A1 WO2023136276 A1 WO 2023136276A1
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- Prior art keywords
- work machine
- remote control
- operation command
- image
- speed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
- E02F9/205—Remotely operated machines, e.g. unmanned vehicles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/20—Control system inputs
- G05D1/22—Command input arrangements
- G05D1/221—Remote-control arrangements
- G05D1/226—Communication links with the remote-control arrangements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/80—Arrangements for reacting to or preventing system or operator failure
- G05D1/82—Limited authority control, e.g. enforcing a flight envelope
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D2105/00—Specific applications of the controlled vehicles
- G05D2105/05—Specific applications of the controlled vehicles for soil shifting, building, civil engineering or mining, e.g. excavators
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D2107/00—Specific environments of the controlled vehicles
- G05D2107/90—Building sites; Civil engineering
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D2109/00—Types of controlled vehicles
- G05D2109/10—Land vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/40—Remote control systems using repeaters, converters, gateways
- G08C2201/42—Transmitting or receiving remote control signals via a network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
Definitions
- the present disclosure relates to a work machine remote control system and a work machine remote control method.
- Patent Document 1 In the technical field related to work machines, a remote control system for work machines as disclosed in Patent Document 1 is known.
- the work machine may behave unexpectedly. For example, if the operator abruptly operates the remote control device, the work machine may suddenly operate.
- An object of the present disclosure is to suppress abrupt movements of a work machine in a work machine remote control system.
- a remote control system for a work machine comprising: a controller;
- sudden movements of the work machine are suppressed in the remote control system for the work machine.
- FIG. 1 is a diagram schematically showing a remote control system for a work machine according to the first embodiment.
- FIG. 2 is a diagram schematically showing the work machine according to the first embodiment.
- FIG. 3 is a block diagram showing the remote control system according to the first embodiment.
- FIG. 4 is a flow chart showing the remote control method according to the first embodiment.
- FIG. 5 is a diagram showing a display example of the display device according to the first embodiment.
- FIG. 6 is a diagram showing a display example of an indicator according to the first embodiment.
- FIG. 7 is a diagram showing a display example of the display device according to the first embodiment.
- FIG. 8 is a diagram showing a display example of the display device according to the first embodiment.
- FIG. 9 is a diagram showing a display example of the display device according to the first embodiment.
- FIG. 10 is a block diagram showing a remote control system according to the second embodiment.
- FIG. 11 is a block diagram showing part of a remote control system according to the third embodiment.
- FIG. 12 is a diagram schematically showing a conversion table according to the third embodiment.
- FIG. 13 is a flow chart showing a method for remotely controlling a revolving body according to the third embodiment.
- FIG. 14 is a flow chart showing a remote control method for a working machine according to the third embodiment.
- FIG. 15 is a flow chart showing a remote control method for a traveling object according to the third embodiment.
- FIG. 16 is a block diagram of a computer system according to the embodiment.
- FIG. 1 is a diagram schematically showing a remote control system 1 for a work machine 2 according to this embodiment.
- the remote control system 1 remotely controls the work machine 2 operating at the work site 3 .
- the working machine 2 is assumed to be a hydraulic excavator.
- the remote operation system 1 includes an operation command transmitter 5 (first operation device), a relay controller 6, an information terminal 8, and a remote operation device 9 (second operation device).
- Each of the operation command transmitter 5 and the relay controller 6 is arranged at the work site 3 where the work machine 2 operates.
- a relay room 7 is installed at the work site 3 .
- the operation command transmitter 5 and the relay controller 6 are arranged in the relay room 7 .
- Each of the information terminal 8 and the remote control device 9 is located at a remote location on the work site 3 .
- a remote control room 4 is installed at a remote location from the work site 3 .
- Each of the information terminal 8 and the remote control device 9 is arranged in the remote control room 4 .
- the operation command transmitter 5 transmits the first operation command to the work machine 2 via the first communication system 11.
- the first operation command is an operation command for operating the work machine 2 .
- the first communication system 11 transmits the first operation command to the work machine 2 using the first communication method (first communication protocol).
- the operation command transmitter 5 wirelessly transmits the first operation command to the work machine 2 .
- the first communication system 11 transmits the first operation command by radio waves, for example.
- the first communication method is a radio control method.
- the operation command transmitter 5 is a radio-controlled transmitter.
- the working machine 2 is radio-controlled by an operation command transmitter 5 .
- the radio-controlled operation includes, for example, an operation performed from a position where the operator can see the working machine 2 .
- the operation command transmitter 5 is arranged at a position where the operator can view the work machine 2 .
- a radio station established for the first communication system 11 is, for example, a radio station that does not require a license or registration. A radio operator license is not required when using the first communication system 11 .
- the radio station established for the first communication system 11 may be a radio-controlled weak radio station with a radio wave frequency band of 73 MHz or the like, or a 920 MHz band telemeter with a radio wave frequency band of 920 MHz and a specified low power for telecontrol.
- a radio station may be used, or a 2.4 GHz low-power data communication system in which the frequency band of radio waves is 2.4 GHz.
- the relay controller 6 includes a computer system located in the relay room 7.
- the information terminal 8 includes a computer system located in the remote control room 4.
- a personal computer is exemplified as the information terminal 8 .
- Information terminal 8 includes remote controller 20 and display device 21 .
- the remote control device 9 generates an operation signal for remotely controlling the work machine 2.
- An operation signal generated by the remote controller 9 is output to the remote controller 20 .
- the remote controller 20 generates a second operation command based on the operation signal from the remote controller 9 .
- the remote controller 20 outputs a second operation command to the operation command transmitter 5 via the second communication system 12 .
- the remote controller 20 transmits the second operation command to the operation command transmitter 5 via the second communication system 12 .
- the second operation command is an operation command for operating the operation command transmitter 5 .
- the second communication system 12 transmits a second operation command to the operation command transmitter 5 using a second communication method (second communication protocol) different from the first communication method.
- the second communication system 12 transmits a second operation command through an electric communication line.
- a game pad is exemplified as the remote control device 9 .
- a remote control device 9 is operated by an operator 10 in a remote control room 4 .
- remote operation includes, for example, operation performed from a position where the operator cannot see the work machine 2 .
- the second communication system 12 may include a public communication line or a specific communication line.
- the Internet is exemplified as the second communication system 12 .
- the second communication system 12 may include a local area network, a mobile phone communication network, or a satellite communication network.
- the second communication method is the Internet method.
- the operation command transmitter 5 transmits the first operation command based on the second operation command from the remote control device 9.
- the work machine 2 operates based on the first operation command from the operation command transmitter 5 .
- FIG. 2 is a diagram schematically showing the work machine 2 according to this embodiment.
- the working machine 2 has a revolving body 13 , a traveling body 14 , a work machine 15 , an imaging device 16 , an in-vehicle display device 17 , an operation command receiver 18 , an in-vehicle controller 19 , and an inclination sensor 31 .
- the revolving body 13 revolves while being supported by the traveling body 14 .
- the revolving body 13 revolves around the revolving shaft.
- Running body 14 includes a crawler belt.
- the work implement 15 includes a boom 15A, an arm 15B, and a bucket 15C. Each of boom 15A, arm 15B, and bucket 15C operates around a rotation axis.
- the vertical direction of the work machine 2 refers to the direction in which the revolving shaft of the revolving body 13 extends.
- the left-right direction of the work machine 2 refers to the direction in which the rotation shaft of the work machine 15 extends.
- the turning shaft extends in the vertical direction of the turning body 13 .
- the rotating shaft of work machine 15 extends in the left-right direction of revolving body 13 .
- the imaging device 16 is mounted on the work machine 2.
- the imaging device 16 is arranged, for example, in the driver's seat provided in the revolving body 13 .
- the imaging device 16 includes a first camera 16A that captures an image of the front of the revolving body 13 and a second camera 16B that captures an image of the in-vehicle display device 17 .
- a work site 3 is included in front of the revolving structure 13 .
- the first camera 16A images the work site 3 .
- both the work site 3 and the in-vehicle display device 17 may be imaged by one camera.
- the in-vehicle display device 17 displays the surroundings of the work machine 2.
- Work machine 2 has a perimeter monitoring system.
- the in-vehicle display device 17 displays a bird's-eye view image of the surroundings of the work machine 2 , a single camera image showing, for example, the rear of the work machine 2 , and a reference line showing the distance from the work machine 2 .
- the single camera image may be an image showing at least one of the front, left, and right sides of the work machine 2 .
- the in-vehicle display device 17 may display a bird's-eye view image without displaying a single camera image, or display a bird's-eye view image with a single camera image displayed thereon.
- the vehicle state (water temperature, fuel, work mode, P mode, E mode, fine operation mode) may be displayed on the vehicle-mounted display device 17, and the vehicle state, bird's-eye view image, and single camera image may be displayed. At least two may be displayed in combination.
- the operation command receiver 18 receives the first operation command from the operation command transmitter 5.
- the operation command receiver 18 is a radio control receiver.
- the in-vehicle controller 19 includes a computer system.
- the vehicle-mounted controller 19 controls the operation of the work machine 2 based on the first operation command.
- the in-vehicle controller 19 also transmits the image captured by the imaging device 16 to the remote controller 20 .
- the vehicle-mounted controller 19 transmits an image of the work site 3 where the work machine 2 operates to the remote controller 20 via the second communication system 12 .
- the in-vehicle controller 19 transmits the image of the in-vehicle display device 17 to the remote controller 20 via the second communication system 12 .
- the in-vehicle controller 19 transmits an image captured by the imaging device 16 to the remote controller 20 without going through the first communication system 11 .
- the tilt sensor 31 detects the tilt angle of the revolving body 13 .
- the tilt sensor 31 includes, for example, an inertial measurement unit (IMU: Inertial Measurement Unit) capable of detecting the tilt angle of the revolving body 13 .
- the tilt sensor 31 is arranged on the revolving body 13 .
- the tilt sensor 31 detects the pitch angle and roll angle of the revolving body 13 as the tilt angle of the revolving body 13 . Assuming that an axis parallel to the rotation axis of the work machine 15 is the pitch axis, the pitch angle is the angle of inclination about the pitch axis.
- the roll angle means an inclination angle about the roll axis.
- FIG. 3 is a block diagram showing the remote control system 1 according to this embodiment.
- a remote control device 9 , a remote controller 20 and a display device 21 are arranged in the remote control room 4 .
- the remote controller 20 and display device 21 are provided in the information terminal 8 .
- the remote control device 9 generates an operation signal by being operated by the operator 10 .
- a remote controller 20 is connected to the remote operation device 9 .
- the remote controller 20 includes an operation command transmission section 20A and an image reception section 20B.
- the operation command transmission unit 20A receives an operation signal from the remote control device 9.
- the operation command transmission unit 20A generates a second operation command based on the operation signal from the remote control device 9.
- the operation command transmission unit 20A transmits the generated second operation command to the relay controller 6 via the second communication system 12 .
- the image receiving unit 20B receives the image captured by the imaging device 16 via the second communication system 12.
- the operation command transmitter 5, the relay controller 6, and the conversion device 22 are arranged in the relay room 7.
- the relay controller 6 has an operation command receiving section 6A.
- the operation command receiving unit 6A receives the second operation command transmitted from the remote controller 20 via the second communication system 12.
- the conversion device 22 converts the second operation command into the first operation command.
- the conversion device 22 converts the second operation command of the second communication method into the first operation command of the first communication method.
- Conversion device 22 includes, for example, a microcomputer and a low pass filter circuit.
- An operation command receiver 18, an in-vehicle controller 19, and an imaging device 16 are arranged on the work machine 2.
- the in-vehicle controller 19 has an operation control section 19A, an image generation section 19B, and an image transmission section 19C.
- the operation control unit 19A controls the operation of the work machine 2 based on the first operation command received by the operation command receiver 18.
- the work machine 2 operates based on the first operation command.
- the operation of the work machine 2 includes the revolving motion of the revolving body 13 , the traveling motion of the traveling body 14 , and the working motion of the work machine 15 .
- the image generation unit 19B generates an image to be transmitted to the remote controller 20 based on the imaging data captured by the imaging device 16.
- the images transmitted to the remote controller 20 include, for example, the image of the work site 3 captured by the first camera 16A and the image of the vehicle-mounted display device 17 captured by the second camera 16B.
- the image transmission section 19C transmits the image generated by the image generation section 19B to the remote controller 20 via the second communication system 12 .
- the image generated by the image generation unit 19B is transmitted to the remote control room 4 via the second communication system 12, not via the first communication system 11, thereby suppressing a decrease in work efficiency due to video delay. be.
- FIG. 4 is a flowchart showing the remote control method according to this embodiment.
- the remote controller 9 When the operator 10 operates the remote controller 9, the remote controller 9 generates an operation signal.
- the operation command transmission section 20A of the remote controller 20 generates a second operation command for operating the operation command transmitter 5 based on the operation signal generated by the remote controller 9 .
- the operation command transmission unit 20A transmits the generated second operation command to the relay controller 6 via the second communication system 12 (step SU1).
- the operation command receiving unit 6A of the relay controller 6 receives the second operation command transmitted via the second communication system 12.
- the operation command receiving section 6A outputs the second operation command to the conversion device 22 .
- the conversion device 22 converts the second operation command to generate the first operation command (step SV1).
- the conversion device 22 outputs to the operation command transmitter 5 the first operation command generated based on the second operation command.
- the operation command transmitter 5 transmits the first operation command to the work machine 2 via the first communication system 11 (step SV2).
- the operation command receiver 18 of the work machine 2 receives the first operation command transmitted via the first communication system 11.
- the operation command receiver 18 outputs the received first operation command to the operation control section 19A of the in-vehicle controller 19 .
- the motion control section 19A controls the motion of the working machine 2 based on the first operation command.
- the work machine 2 operates based on the first operation command (step SW1).
- the first camera 16A outputs the imaging data of the work site 3 to the image generator 19B.
- the second camera 16B outputs the imaging data of the in-vehicle display device 17 to the image generator 19B.
- the image generator 19B synthesizes the imaging data of the work site 3 and the imaging data of the in-vehicle display device 17 to generate a predetermined image.
- the image transmission section 19C transmits the image generated by the image generation section 19B to the remote controller 20 via the second communication system 12 .
- the image receiving section 20B of the remote controller 20 receives the image transmitted from the vehicle-mounted controller 19 .
- the image receiving section 20B outputs the image transmitted from the in-vehicle controller 19 to the display device 21 .
- the display device 21 displays the image transmitted from the vehicle-mounted controller 19 .
- An image of the work site 3 and an image of the in-vehicle display device 17 are displayed on the display device 21 .
- An operator 10 in the remote control room 4 can visually recognize the situation of the work site 3 through the display device 21 .
- An operator 10 in the remote control room 4 operates the remote control device 9 while watching the image displayed on the display device 21 .
- the work machine 2 is remotely controlled by a remote controller 9 .
- FIG. 5 is a diagram showing a display example of the display device 21 according to this embodiment.
- the first display area 21A of the display device 21 displays an image of the work site 3 captured by the first camera 16A.
- the image of the work site 3 captured by the first camera 16 ⁇ /b>A includes an image of the front of the revolving body 13 .
- the image in front of the revolving body 13 includes the image of the work implement 15 .
- An image of the in-vehicle display device 17 captured by the second camera 16B is displayed in the second display area 21B of the display device 21 .
- the in-vehicle display device 17 displays a bird's-eye view image of the surroundings of the work machine 2 and a single camera image showing the rear of the work machine 2 .
- a bird's-eye view image 26 of the surroundings of the work machine 2 displayed on the in-vehicle display device 17 and a single camera image 27 showing the rear of the work machine 2 are displayed.
- the display device 21 displays an indicator 28 that indicates the tilt angle of the revolving body 13 .
- Indicator 28 is displayed based on the detection data of tilt sensor 31 .
- FIG. 6 is a diagram showing a display example of the indicator 28 according to this embodiment.
- the indicator 28 includes a first frame 28A that indicates a first threshold value for each of the pitch angle and roll angle, and a second frame 28B that indicates a second threshold value for each of the pitch angle and roll angle. , and a symbol 28C indicating the detection data of the tilt sensor 31.
- the second threshold is greater than the first threshold.
- the symbol 28C moves on the indicator 28 based on the data detected by the tilt sensor 31.
- FIG. The symbol 28C is positioned at the origin 28D of the indicator 28 when each of the pitch angle and roll angle is 0 degrees.
- the first frame 28A is displayed surrounding the origin 28D.
- the second frame 28B is displayed so as to surround the first frame 28A. As shown in FIG.
- the first frame 28A and the second frame 28B are displayed in a first display state (eg, blue).
- the first frame 28A 2 display state (eg, yellow).
- the second frame 28B 3 display state (for example, red).
- FIGS. 7, 8, and 9 are diagrams showing display examples of the display device 21 according to the present embodiment.
- the display device 21 can display a reference line 29 indicating the distance from the work machine 2 in the first display area 21A.
- the reference line 29 is composed of a plurality of lines. A plurality of lines are parallel to each other.
- the width of the plurality of lines forming the reference line 29A shown in FIG. 7 decreases as the distance from the work machine 2 increases.
- the width of the plurality of lines forming the reference line 29B shown in FIG. 8 increases as the distance from the work machine 2 increases.
- a plurality of lines forming reference line 29 ⁇ /b>C shown in FIG. 9 have a constant width regardless of the distance from work machine 2 . 29 A of reference lines shown in FIG.
- the reference line 29B shown in FIG. 8 is displayed above the first display area 21A.
- 29 C of guide lines shown in FIG. 9 are displayed on the lower part of 21 A of 1st display areas.
- the operator 10 can arbitrarily change the number, width, and position of the lines forming the reference line 29 by operating the remote control device 9 .
- the operator can arbitrarily select the display example shown in FIG. 7, the display example shown in FIG. 8, and the display example shown in FIG. 9 and cause the display device 21 to display them. Note that in the display examples shown in FIGS. 7, 8, and 9, the reference line 29 may not be displayed.
- the operation command transmitter 5 that wirelessly operates the work machine 2 via the first communication system 11 is operated by the remote controller 9 via the second communication system 12. be.
- the work machine 2 is remotely controlled by a remote controller 9 via an operation command transmitter 5 .
- a wireless operation system for wirelessly operating the work machine 2 with the operation command transmitter 5 has already been constructed, or when the work machine 2 is already operating by radio control operation at the work site 3, the wireless operation system
- the remote control system 1 is constructed only by adding the second communication system and the remote control device 9 . Therefore, the cost of the remote control system 1 for the work machine 2 is suppressed.
- the remote control system 1 is constructed at low cost.
- a conversion device 22 is provided for converting the second operation command into the first operation command. Therefore, even if the communication method of the first communication system 11 and the communication method of the second communication system 12 are different, the operator 10 can remotely control the work machine 2 with the remote control device 9 .
- the conversion device 22 converts the second operation command into the first operation, so that the operator 10 can remotely control the work machine 2 with the remote control device 9 .
- the 1st communication system 11 decided to communicate by a radio control system.
- the first communication system 11 may communicate using a wireless LAN (Local Area Network) method or a wireless PAN (Personal Area Network) method.
- the operation command transmission unit 20A and the image reception unit 20B may be configured by separate hardware (computer system).
- the conversion device 22 may be configured by the relay controller 6 .
- the operation control section 19A, the image generation section 19B, and the image transmission section 19C may be configured by separate hardware (computer systems).
- FIG. 10 is a block diagram showing the remote control system 1 according to this embodiment.
- the work machine 2 has an image transmitter 23 that transmits an image of the work site 3 and an image of the in-vehicle display device 17 .
- the imaging data of the imaging device 16 is output to the image generator 19B.
- the image generated by the image generator 19B is transmitted to the image transmitter 23 via the image transmitter 19C.
- the image transmitter 23 transmits images to an image receiver 25 located at the work site 3 .
- the image receiver 25 is arranged in the relay room 7 .
- the image transmitter 23 transmits the image of the work site 3 and the image of the in-vehicle display device 17 to the image receiver 25 via the third communication system 24 .
- the third communication system 24 transmits images to the image receiver 25 by a third communication method (third communication protocol) different from the first communication method and the second communication method.
- the third communication system 24 wirelessly transmits images.
- a video transmitter is exemplified as the image transmitter 23 and the image receiver 25 .
- the third communication method may be a unique communication method defined for the video transmitter.
- the relay controller 6 has an image transmission section 6B that transmits the image of the work site 3 received by the image receiver 25 and the image of the in-vehicle display device 17 to the remote controller 20.
- the image transmission unit 6B transmits the image of the work site 3 and the image of the in-vehicle display device 17 to the remote controller 20 via the second communication system 12 .
- an image captured by the imaging device 16 is transmitted from the work machine 2 to the relay controller 6 via the third communication system 24, and then transmitted from the relay controller 6 to the second communication system. 12 to the remote controller 20 .
- the image captured by the imaging device 16 is smoothly transmitted to the remote controller 20 .
- the image transmission speed of the third communication system 24 is higher than the image transmission speed of the second communication system 12.
- the third communication system 24 can transmit images with lower delay than the second communication system 12 .
- the communication stability of the third communication system 24 is higher than the communication stability of the second communication system 12 .
- the work machine 2 may perform work at a position where it is difficult to communicate with the second communication system 12 .
- the relay room 7 is located at a position where communication is easy with the second communication system 12
- the image captured by the imaging device 16 is transmitted from the work machine 2 to the relay controller 6 arranged in the relay room 7 .
- the image captured by the imaging device 16 is smoothly transmitted from the relay controller 6 to the remote controller 20 via the second communication system 12 by being transmitted via the third communication system 24 .
- the operation command receiving section 6A and the image transmitting section 6B may be configured by separate hardware (computer system).
- FIG. 11 is a block diagram showing part of the remote control system 1 according to this embodiment.
- the remote controller 20 has an operation command transmission section 20A, an image reception section 20B, a determination section 20C, and a storage section 20D.
- the remote control device 9 generates an operation signal for remotely operating the working machine 2 .
- the operation command transmission unit 20A transmits a second operation command for remotely operating the work machine 2 based on the operation signal generated by the remote controller 9 .
- the determination unit 20C determines whether communication has been established between the work machine 2 and the remote control device 9. Further, the determination unit 20C determines whether or not a predetermined period of time has passed since the communication between the work machine 2 and the remote control device 9 was established.
- the remote controller 20 is provided with a timer. Based on the timer, the determination unit 20C determines whether or not a predetermined period of time has passed since the communication between the work machine 2 and the remote control device 9 was established.
- the operation command transmission unit 20A determines that the first operation speed (fine operation speed) indicating the operation speed of the work machine 2 when the communication between the work machine 2 and the remote control device 9 is established is the operation amount of the remote control device 9.
- a second operation command is transmitted so as to be slower than a second motion speed (normal speed) indicating a predetermined motion speed associated in advance.
- the second operating speed is the operating speed associated in advance with the operation amount of the remote control device 9, and is the normal speed of the work machine 2 that operates based on the operation amount of the remote control device 9.
- the first motion speed is a fine operation speed that is slower than the second motion speed.
- the work machine 2 may operate at the first operating speed or at the second operating speed.
- the operation control unit 19A (see FIGS. 3, 10, etc.) of the in-vehicle controller 19 controls the work machine 2 based on the second operation command from the operation command transmission unit 20A.
- the operation command transmitter 5 is operated based on the second operation command
- the operation control section 19A controls the work machine 2 based on the first operation command from the operation command transmitter 5.
- the motion control unit 19A sets the first motion speed, which indicates the motion speed of the work machine 2 when the communication between the work machine 2 and the remote control device 9 is established, to a predetermined value associated in advance with the operation amount of the remote control device 9.
- the work machine 2 is controlled so as to be slower than the second operating speed indicating the operating speed of the .
- the operation command transmission unit 20A moves the work machine 2 at the first operating speed.
- the work machine 2 operates at a second operation speed higher than the first operation speed.
- the second operation command to the operation command transmitter 5 (relay controller 6).
- the predetermined period is a preset period.
- a conversion table is stored in the storage unit 20D.
- the operation command transmission unit 20A converts the second operation command based on the determination data of the determination unit 20C and the conversion table stored in the storage unit 20D, and then transmits the second operation command.
- the operation command transmission unit 20A converts the second operation command so that the working machine 2 operates at the first operating speed and then transmits the second operation command.
- the operation command transmission unit 20A converts the second operation command so that the work machine 2 operates at a second operation speed higher than the first operation speed, and then transmits the second operation command.
- the operation control unit 19A controls the work machine 2 so that the work machine 2 operates at the first operation speed before a predetermined period of time has elapsed since communication was established between the work machine 2 and the remote control device 9. do.
- the operation control unit 19A switches the operation speed of the work machine 2 from the first operation speed to the second operation speed after a predetermined period of time has elapsed since the communication between the work machine 2 and the remote control device 9 was established.
- FIG. 12 is a diagram schematically showing a conversion table according to this embodiment.
- the conversion table includes a relay operation amount indicating the operation amount associated with the first operation command output from the operation instruction transmitter 5, and a remote operation amount indicating the operation amount associated with the second operation command output from the remote control device 9. shows the relationship between A conversion table is a conversion table for converting a remote operation amount into a relay operation amount.
- the conversion tables are a fine operation table 30A (first conversion table) that is used when it is determined that the predetermined period has not passed, and a normal table 30B (first conversion table) that is used when it is determined that the predetermined period has passed. second conversion table). As shown in FIG. 12, the ratio between the relay operation amount and the remote operation amount differs before the predetermined period of time has passed and after the predetermined period of time has passed.
- the fine operation table 30A and the normal table 30B have different gains of the relay operation amount with respect to the remote operation amount.
- the gain of the relay operation amount with respect to the remote operation amount before the predetermined period elapses is the relay operation with respect to the remote operation amount after the predetermined period elapses (in the case of the normal table 30B). less than the amount gain.
- the relay operation amount transmitted to the work machine 2 before the predetermined period elapses is the relay operation amount transmitted to the work machine 2 after the predetermined period elapses. Smaller than the manipulated variable.
- the operation command transmission unit 20A converts the second operation command based on the fine operation table 30A when it is determined that the predetermined period has not elapsed.
- the operation command transmission unit 20A converts the second operation command based on the normal table 30B when it is determined that the predetermined period has elapsed.
- a dead zone is provided for the amount of remote control.
- the dead zone is set to a predetermined range of remote control amounts including a state where the remote control amount is zero. If the remote control amount is within the dead zone, the remote control amount is treated as zero.
- the operating speed of the working machine 2 is the operating speed of the operable parts of the working machine 2 .
- a revolving body 13 , a work machine 15 , and a traveling body 14 are exemplified as operable parts of the work machine 2 .
- the second operation command output from the remote control device 9 includes a swing command for operating the swing body 13 , a work command for operating the working machine 15 , and a travel command for operating the traveling body 14 .
- the travel command includes a forward command for advancing the traveling body 14 and a reverse command for reversing the traveling body 14 .
- FIG. 13 is a flow chart showing a remote control method for the revolving body 13 according to this embodiment.
- the determination unit 20C determines whether communication has been established between the work machine 2 and the remote control device 9. After the communication is established, the remote control device 9 is operated to output a turning command as the second operation command from the remote control device 9 .
- the operation command transmission unit 20A acquires a turning command (step SA1).
- the determination unit 20C determines whether or not there is an abnormality in communication (step SA2).
- step SA2 determines whether or not there is an operation restriction (step SA3).
- the remote control device 9 is provided with an unillustrated operation limiting operation section that limits the operation of the working machine 2 .
- the operation restriction operation unit When the operation restriction operation unit is operated, the operation of the work machine 2 is restricted. When the operation of the work machine 2 is restricted, a neutral signal is output even if the remote control device 9 is operated. This limits the operation of the work machine 2 .
- Restrictions on the operation of the work machine 2 include restrictions on the operation of the work machine 15 , restrictions on the operation of the revolving body 13 , and restrictions on the operation of the traveling body 14 .
- the determination unit 20C determines whether or not the operation restriction operation unit has been operated.
- step SA3 If it is determined in step SA3 that there is no operation restriction (step SA3: Yes), the determination unit 20C determines whether or not there is a turning restriction (step SA4).
- the remote control device 9 is provided with a turning restriction operation section (not shown) that limits the turning of the turning body 13 .
- a turning restriction operation section (not shown) that limits the turning of the turning body 13 .
- step SA4 determines whether or not the remote control amount related to the turning command is outside the dead zone (step SA5).
- step SA5 determines whether or not the remote operation amount is outside the dead band. That is, the determination unit 20C determines whether or not to enter the fine operation mode that slows down the operating speed of the revolving body 13 (step SA6).
- step SA6 If it is determined in step SA6 that the predetermined period has not elapsed, that is, if it is determined that the fine operation mode is to be set (step SA6: Yes), the operation command transmission unit 20A, based on the fine operation table 30A, Convert the second operation command. That is, the operation command transmission unit 20A converts the second operation command with a small gain (step SA7).
- the operation command transmission unit 20A transmits the converted second operation command to the operation command transmitter 5 (step SA8).
- step SA6 If it is determined in step SA6 that the predetermined period has passed, that is, if it is determined that the operation speed of the revolving body 13 is to be set to the normal mode, which is faster than the fine operation mode (step SA6: No), the operation command transmission unit 20A converts the second operation command based on the normal table 30B. That is, the operation command transmission unit 20A converts the second operation command with a large gain (step SA9).
- the operation command transmission unit 20A transmits the converted second operation command to the operation command transmitter 5 (step SA8).
- step SA2 If it is determined that there is an abnormality in step SA2 (step SA2: No), if it is determined that operation is restricted in step SA3 (step SA3: No), if it is determined that there is a turning restriction in step SA4 ( Step SA4: No), and if it is determined to be within the dead zone in step SA5 (step SA5: No), the operation command transmission unit 20A generates a stop command that does not rotate the revolving superstructure 13 (step SA10).
- the operation command transmitter 20A transmits a stop command to the operation command transmitter 5 (step SA8).
- FIG. 14 is a flow chart showing a remote control method for the working machine 15 according to this embodiment.
- the determination unit 20C determines whether communication has been established between the work machine 2 and the remote control device 9. After the communication is established, the remote controller 9 is operated to output a work command as a second operation command from the remote controller 9 .
- the operation command transmission unit 20A acquires a work command (step SB1).
- the determination unit 20C determines whether or not there is an abnormality in communication (step SB2).
- step SB2 If it is determined in step SB2 that there is no abnormality (step SB2: Yes), the determination unit 20C determines whether or not there is an operation restriction (step SB3).
- step SB3 If it is determined in step SB3 that there is no operation restriction (step SB3: Yes), the determination unit 20C determines whether or not the remote operation amount related to the work command is outside the dead zone (step SB4).
- step SB4 determines whether or not the predetermined period has elapsed. That is, determination unit 20C determines whether or not to enter the fine operation mode in which the operation speed of work implement 15 is slowed down (step SB5).
- step SB5 If it is determined in step SB5 that the predetermined period has not elapsed, that is, if it is determined that the fine operation mode is to be set (step SB5: Yes), the operation command transmission unit 20A, based on the fine operation table 30A, Convert the second operation command. That is, the operation command transmission unit 20A converts the second operation command with a small gain (step SB6).
- the operation command transmission unit 20A transmits the converted second operation command to the operation command transmitter 5 (step SB7).
- step SB5 If it is determined in step SB5 that the predetermined period has elapsed, that is, if it is determined that the operation speed of the work implement 15 is to be changed to the normal mode, which is faster than the fine operation mode (step SB5: No), the operation command transmission unit 20A converts the second operation command based on the normal table 30B. That is, the operation command transmission unit 20A converts the second operation command with a large gain (step SB8).
- the operation command transmission unit 20A transmits the converted second operation command to the operation command transmitter 5 (step SB7).
- step SB2 If it is determined that there is an abnormality in step SB2 (step SB2: No), if it is determined that there is an operation restriction in step SB3 (step SB3: No), and if it is determined to be within the dead zone in step SB4 (Step SB4: No), the operation command transmitting unit 20A generates a stop command not to operate the working machine 15 (step SB9).
- the operation command transmission unit 20A transmits a stop command to the operation command transmitter 5 (step SB9).
- FIG. 15 is a flow chart showing a remote control method for the running body 14 according to this embodiment.
- the determination unit 20C determines whether or not it is time to start the system when communication between the work machine 2 and the remote control device 9 is established. After the system is activated, the remote controller 9 is operated to output a travel command as a second operation command from the remote controller 9 .
- the operation command transmission unit 20A acquires a travel command (step SC1).
- the determination unit 20C determines whether or not there is an abnormality in communication (step SC2).
- step SC2 When it is determined in step SC2 that there is no abnormality (step SC2: Yes), the determination unit 20C determines whether or not there is an operation restriction (step SC3).
- step SC3 When it is determined in step SC3 that there is no operation restriction (step SC3: Yes), the operation command transmission unit 20A determines whether or not the travel command is a forward command (step SC4).
- step SC4 When it is determined in step SC4 that the travel command is a forward command (step SC4: Yes), the operation command transmission unit 20A generates a forward command as the second operation command (step SC5).
- the operation command transmitter 20A transmits a forward command to the operation command transmitter 5 (step SC6).
- step SC4 When it is determined in step SC4 that the travel command is not the forward command (step SC4: No), the operation command transmission unit 20A determines whether the travel command is the reverse command (step SC7).
- step SC7 When it is determined in step SC7 that the travel command is a reverse command (step SC7: Yes), the operation command transmission unit 20A generates a reverse command as the second operation command (step SC8).
- the operation command transmission unit 20A transmits a reverse command to the operation command transmitter 5 (step SC6).
- step SC2 If it is determined that there is an abnormality in step SC2 (step SC2: No), if it is determined that operation is restricted in step SC3 (step SC3: No), and if it is determined that the travel command is not a reverse drive command in step SC7 If so (step SC7: No), the operation command transmission unit 20A generates a stop command to stop the traveling body 14 from traveling (step SB9).
- the operation command transmission unit 20A transmits a stop command to the operation command transmitter 5 (step SC6).
- the operating speed of the work machine 2 is Controlled to be slower than normal operating speed. That is, when the operation mode of the work machine 2 includes the fine operation mode and the normal mode, the operation mode of the work machine 2 is set to Forcibly set to fine operation mode. For example, if the operator 10 is not accustomed to remote control, there is a possibility that the operator 10 will operate the remote control device 9 abruptly. If the remote control device 9 is operated abruptly, there is a possibility that the work machine 2 will suddenly operate at the work site 3 . In the present embodiment, the operating speed of the work machine 2 is forcibly limited when the system is started. It is suppressed to do.
- the remote controller 20 is provided with a timer, and the determination unit 20C determines based on the timer that a predetermined period of time has elapsed since the communication between the work machine 2 and the remote control device 9 was established. , the operation mode of the working machine 2 is changed from the fine operation mode to the normal mode.
- the motion control unit 19A switches the motion speed of the work machine 2 from the first motion speed to the second motion speed after a predetermined period of time has elapsed since the communication was established. As a result, the work efficiency of the work machine 2 is suppressed from being lowered.
- the operation mode of the work machine 2 is set to the fine operation mode before a predetermined period of time elapses after the communication between the work machine 2 and the remote control device 9 is established.
- the operation mode of the work machine 2 is changed from the fine operation mode to the normal mode when a predetermined period of time has passed since the communication between the work machine 2 and the remote control device 9 was established. That is, the operation control unit 19A switches the operation speed of the work machine 2 from the first operation speed to the second operation speed after a predetermined period of time has passed since the communication between the work machine 2 and the remote control device 9 was established.
- the operation mode of the work machine 2 may be changed from the fine operation mode to the normal mode. That is, the motion control section 19A may switch the motion speed of the work machine 2 from the first motion speed to the second motion speed based on the release signal output from the remote controller 9 . For example, after the operator 10 has become accustomed to remote control, the operator 10 can operate the remote control device 9 to change the operation mode of the work machine 2 from the fine control mode to the normal mode. As a result, the work efficiency of the work machine 2 is suppressed from being lowered.
- the operator 10 operates the fine operation mode canceling operation section based on his/her own intention to change the operation mode of the work machine 2. It is possible to change from fine operation mode to normal mode.
- a cancellation signal is generated in the remote control device 9 by operating a fine operation mode cancellation operation unit provided in the remote control device 9 .
- the motion controller 19A switches the motion speed of the work machine 2 from the first motion speed to the second motion speed based on the release signal output from the remote control device 9 .
- the operator 10 can set the operation mode of the work machine 2 to the normal mode by operating the fine operation mode canceling operation section of the remote control device 9 .
- the operation control unit 19A controls the operation of the work machine 2 based on the release signal output from the remote control device 9 . may be switched from the first operating speed to the second operating speed.
- the work machine 2 is set to either the fine operation mode or the normal mode based on the ratio (gain) between the relay operation amount and the remote operation amount.
- the work machine 2 may be set to either the fine operation mode or the normal mode by changing the rotation speed of the engine that is the power source mounted on the work machine 2 .
- the conversion table described with reference to FIG. 12 is stored in the storage unit 20D of the remote controller 20.
- the conversion table may be stored in relay controller 6 or may be stored in in-vehicle controller 19 .
- the operation command transmitter 5 is operated based on the second operation command, and based on the first operation command from the operation command transmitter 5, an operation is performed.
- the operation command transmitter 5 may be omitted.
- the motion control unit 19A may control the work machine 2 based on the second operation command from the operation command transmission unit 20A.
- the operation command transmission unit 20A, the image reception unit 20B, the determination unit 20C, and the storage unit 20D may be configured by separate hardware (computer system).
- FIG. 16 is a block diagram showing a computer system 1000 according to an embodiment.
- Each of the remote controller 20 , relay controller 6 , and onboard controller 19 described above includes a computer system 1000 .
- a computer system 1000 includes a processor 1001 such as a CPU (Central Processing Unit), a main memory 1002 including non-volatile memory such as ROM (Read Only Memory) and volatile memory such as RAM (Random Access Memory), It has a storage 1003 and an interface 1004 including an input/output circuit.
- the respective functions of the remote controller 20, the relay controller 6, and the in-vehicle controller 19 described above are stored in the storage 1003 as computer programs.
- the processor 1001 reads a computer program from the storage 1003, develops it in the main memory 1002, and executes the above-described processing according to the program. Note that the computer program may be distributed to the computer system 1000 via a network.
- the computer program or computer system 1000 generates an operation signal for remotely operating the work machine 2, transmits an operation command based on the operation signal, and communicates between the work machine and the remote control device according to the above-described embodiments.
- the work machine is configured such that a first operation speed indicating an operation speed of the work machine when communication is established is slower than a second operation speed indicating a predetermined operation speed associated in advance with an operation amount of the remote control device. can be controlled and executed.
- the working machine 1 is a loading shovel.
- the work machine 1 may be a backhoe.
- the working machine 1 is provided with the revolving body 13 as the vehicle body, but the vehicle body of the working machine 1 may not be a revolving body.
- the working machine 1 may be any working machine having a working machine, such as a bulldozer or a wheel loader.
- the working machine 1 does not have to have a working machine.
- the work machine 1 can be, for example, a transport vehicle with a dump body.
- Second display area 22... Conversion device, 23... Image transmitter, 24... Third communication system, 25... Image receiver, 26... Overhead image, 27... Single camera image, 28... indicator, 28A... first frame, 28B... second frame, 28C... symbol, 28D... origin, 29... reference line, 29A... reference line, 29B... reference line, 29C... reference line, 30A... fine operation table ( First conversion table), 30B... Normal table (second conversion table), 31... Inclination sensor, 1000... Computer system, 1001... Processor, 1002... Main memory, 1003... Storage, 1004... Interface.
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Abstract
Description
第1実施形態について説明する。
図1は、本実施形態に係る作業機械2の遠隔操作システム1を模式的に示す図である。
図2は、本実施形態に係る作業機械2を模式的に示す図である。
図3は、本実施形態に係る遠隔操作システム1を示すブロック図である。遠隔操作室4に、遠隔操作装置9と、遠隔コントローラ20と、表示装置21とが配置される。本実施形態において、遠隔コントローラ20及び表示装置21は、情報端末8に設けられる。遠隔操作装置9は、操作者10に操作されることにより、操作信号を生成する。遠隔コントローラ20は、遠隔操作装置9に接続される。
図4は、本実施形態に係る遠隔操作方法を示すフローチャートである。
図5は、本実施形態に係る表示装置21の表示例を示す図である。
以上説明したように、本実施形態によれば、第1通信システム11を介して作業機械2を無線操作する操作指令送信機5が、第2通信システム12を介して遠隔操作装置9により操作される。作業機械2は、操作指令送信機5を介して遠隔操作装置9に遠隔操作される。操作指令送信機5で作業機械2を無線操作する無線操作システムが既に構築されている場合、又は、作業現場3においてラジコン操作により作業機械2が既に稼働している状況の場合、無線操作システムに第2通信システム及び遠隔操作装置9が付加されるだけで、遠隔操作システム1が構築される。そのため、作業機械2の遠隔操作システム1に掛かるコストが抑制される。遠隔操作システム1は、安価に構成される。
本実施形態において、第1通信システム11は、ラジコン方式で通信することとした。第1通信システム11は、無線LAN(Local Area Network)方式で通信してもよいし、無線PAN(Personal Area Network)方式で通信してもよい。
第2実施形態について説明する。以下の説明において、上述の実施形態と同一の又は同等の構成要素については同一の符号を付し、その構成要素の説明を簡略又は省略する。
図10は、本実施形態に係る遠隔操作システム1を示すブロック図である。
以上説明したように、本実施形態において、撮像装置16により撮像された画像は、作業機械2から第3通信システム24を介して中継コントローラ6に送信された後、中継コントローラ6から第2通信システム12を介して遠隔コントローラ20に送信される。これにより、作業現場3において、作業機械2が画像を伝送し難い位置で作業を実施していても、撮像装置16に撮像された画像は、遠隔コントローラ20に円滑に送信される。
本実施形態において、操作指令受信部6Aと画像送信部6Bとは、別々のハードウェア(コンピュータシステム)により構成されてもよい。
第3実施形態について説明する。以下の説明において、上述の実施形態と同一の又は同等の構成要素については同一の符号を付し、その構成要素の説明を簡略又は省略する。
図11は、本実施形態に係る遠隔操作システム1の一部を示すブロック図である。
図13は、本実施形態に係る旋回体13の遠隔操作方法を示すフローチャートである。
以上説明したように、本実施形態においては、作業機械2と遠隔操作装置9との通信が確立したときにおいて、操作者10により遠隔操作装置9が操作された場合、作業機械2の動作速度が通常の動作速度よりも遅くなるように制御される。すなわち、作業機械2の動作モードが微操作モードと通常モードとを含む場合、作業機械2と遠隔操作装置9との通信が確立した時点(システム起動時点)においては、作業機械2の動作モードが強制的に微操作モードに設定される。例えば操作者10が遠隔操作に慣れていない場合、遠隔操作装置9を急激に操作してしまう可能性がある。遠隔操作装置9が急激に操作された場合、作業現場3において作業機械2が急激に動作してしまう可能性がある。本実施形態においては、システム起動時においては、作業機械2の動作速度が強制的に制限されるので、遠隔操作装置9が急激に操作されても、作業現場3において作業機械2が急激に動作してしまうことが抑制される。
本実施形態においては、タイマに基づいて、作業機械2と遠隔操作装置9との通信が確立した時点から所定期間が経過する前においては、作業機械2の動作モードが微操作モードに設定され、作業機械2と遠隔操作装置9との通信が確立した時点から所定期間が経過時点において、作業機械2の動作モードが微操作モードから通常モードに変更されることとした。すなわち、動作制御部19Aは、作業機械2と遠隔操作装置9との通信が確立した時点から所定期間が経過した後に、作業機械2の動作速度を第1動作速度から第2動作速度に切り換えることとした。遠隔操作装置9から出力される解除信号に基づいて、作業機械2の動作モードが微操作モードから通常モードに変更されてもよい。すなわち、動作制御部19Aは、遠隔操作装置9から出力される解除信号に基づいて、作業機械2の動作速度を第1動作速度から第2動作速度に切り換えてもよい。例えば、操作者10は、遠隔操作に慣れてきた後、遠隔操作装置9を操作して、作業機械2の動作モードを微操作モードから通常モードに変更することができる。これにより、作業機械2の作業効率の低下が抑制される。例えば、遠隔操作装置9に微操作モード解除操作部が設けられている場合、操作者10は、自らの意思に基づいて、微操作モード解除操作部を操作して、作業機械2の動作モードを微操作モードから通常モードに変更することができる。遠隔操作装置9に設けられている微操作モード解除操作部が操作されることにより、遠隔操作装置9において解除信号が生成される。動作制御部19Aは、遠隔操作装置9から出力される解除信号に基づいて、作業機械2の動作速度を第1動作速度から第2動作速度に切り換える。操作者10は、遠隔操作装置9に微操作モード解除操作部を操作することにより、作業機械2の動作モードを通常モードに設定することができる。
図16は、実施形態に係るコンピュータシステム1000を示すブロック図である。上述の遠隔コントローラ20、中継コントローラ6、及び車載コントローラ19のそれぞれは、コンピュータシステム1000を含む。コンピュータシステム1000は、CPU(Central Processing Unit)のようなプロセッサ1001と、ROM(Read Only Memory)のような不揮発性メモリ及びRAM(Random Access Memory)のような揮発性メモリを含むメインメモリ1002と、ストレージ1003と、入出力回路を含むインターフェース1004とを有する。上述の遠隔コントローラ20、中継コントローラ6、及び車載コントローラ19のそれぞれの機能は、コンピュータプログラムとしてストレージ1003に記憶されている。プロセッサ1001は、コンピュータプログラムをストレージ1003から読み出してメインメモリ1002に展開し、プログラムに従って上述の処理を実行する。なお、コンピュータプログラムは、ネットワークを介してコンピュータシステム1000に配信されてもよい。
なお、上述の実施形態においては、作業機械1がローディングショベルであることとした。作業機械1はバックホウでもよい。また、上述の実施形態においては、作業機械1が車体として旋回体13を備えることとしたが、作業機械1の車体は旋回体でなくてもよい。作業機械1は、作業機を有する作業機械であればよく、ブルドーザでもよいし、ホイールローダでもよい。また、作業機械1は、作業機を有していなくてもよい。作業機械1は、例えばダンプボディを有する運搬車両でもよい。
Claims (5)
- 作業機械を遠隔操作する操作信号を生成する遠隔操作装置と、
前記操作信号に基づいて操作指令を送信する操作指令送信部と、
前記作業機械と前記遠隔操作装置との通信が確立したときの前記作業機械の動作速度を示す第1動作速度が、前記遠隔操作装置の操作量に予め対応付けられた所定の動作速度を示す第2動作速度よりも遅くなるように、前記作業機械を制御する動作制御部と、を備える、
作業機械の遠隔操作システム。 - 前記動作制御部は、解除信号に基づいて、前記作業機械の動作速度を前記第1動作速度から前記第2動作速度に切り換える、
請求項1に記載の作業機械の遠隔操作システム。 - 前記動作制御部は、前記通信が確立した時点から所定期間が経過した後に、前記作業機械の動作速度を前記第1動作速度から前記第2動作速度に切り換える、
請求項1に記載の作業機械の遠隔操作システム。 - 前記動作制御部は、前記所定期間が経過する前においても、解除信号に基づいて、前記作業機械の動作速度を前記第1動作速度から前記第2動作速度に切り換える、
請求項3に記載の作業機械の遠隔操作システム。 - 作業機械を遠隔操作する操作信号を生成することと、
前記操作信号に基づいて操作指令を送信することと、
前記作業機械と遠隔操作装置との通信が確立したときの前記作業機械の動作速度を示す第1動作速度が、前記遠隔操作装置の操作量に予め対応付けられた所定の動作速度を示す第2動作速度よりも遅くなるように、前記作業機械を制御することと、を含む、
作業機械の遠隔操作方法。
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| DE112023000318.1T DE112023000318T5 (de) | 2022-01-12 | 2023-01-12 | Fernbetätigungssystem einer arbeitsmaschine und fernbetätigungsverfahren für eine arbeitsmaschine |
| CN202380015880.7A CN118525524A (zh) | 2022-01-12 | 2023-01-12 | 作业机械的远程操作系统及作业机械的远程操作方法 |
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| JP2002354329A (ja) * | 2001-05-30 | 2002-12-06 | Minolta Co Ltd | 撮影装置および撮影システム |
| WO2019172424A1 (ja) * | 2018-03-08 | 2019-09-12 | 住友重機械工業株式会社 | 作業機械、情報処理装置、情報処理方法、プログラム |
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| JP7151392B2 (ja) | 2018-11-07 | 2022-10-12 | コベルコ建機株式会社 | 建設機械の遠隔操作装置 |
| JP7500219B2 (ja) | 2020-02-21 | 2024-06-17 | 株式会社小松製作所 | 作業機械の遠隔操作システム |
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|---|---|---|---|---|
| JP2002354329A (ja) * | 2001-05-30 | 2002-12-06 | Minolta Co Ltd | 撮影装置および撮影システム |
| WO2019172424A1 (ja) * | 2018-03-08 | 2019-09-12 | 住友重機械工業株式会社 | 作業機械、情報処理装置、情報処理方法、プログラム |
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| KR20240113544A (ko) | 2024-07-22 |
| DE112023000318T5 (de) | 2024-08-22 |
| US20250146254A1 (en) | 2025-05-08 |
| CN118525524A (zh) | 2024-08-20 |
| JP2023102605A (ja) | 2023-07-25 |
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