JP6253565B2 - Operation terminal - Google Patents

Description

  The present invention relates to an operation terminal for an unmanned autonomous traveling work vehicle that autonomously travels, and relates to a technique that allows the length of a work implement mounted on the autonomous traveling work vehicle to be easily set on a setting screen of the operation terminal.

  2. Description of the Related Art Conventionally, a technique for setting a work path by combining a reciprocating work and a turning work so that work can be performed while automatically running in a field is known (for example, see Patent Document 1).

JP-A-10-66406

  In the above technique, in order to set the work route, the length of the work vehicle, the work width, and the work overlap width must be set in advance. In this setting, an operation terminal is usually connected to a controller of a work vehicle via a cable, and numbers of each length are input using a keyboard or a numeric keypad of the operation terminal. Therefore, since the numbers are entered while operating the keyboard or numeric keypad of the operation terminal while looking at the setting screen, it is easy to make an input error.

  The present invention has been made in view of the situation as described above, and provides an operation terminal that can easily set dimensions as information necessary for setting a travel route for autonomous traveling by an operation of touching a screen of a display device. And

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
That is, in claim 1, using the satellite positioning system, the left and right lengths and the front and rear lengths of the working machines mounted on the autonomous traveling work vehicle that can automatically travel and work along the set traveling route An operation terminal capable of setting a duplication amount or the like at work, the operation terminal being able to communicate with a control device of an autonomous traveling work vehicle and a communication device, the operation terminal including a control device and a display device, The display device can be touch-operated. On the setting screen of the work machine, a schematic diagram of the work vehicle and the work machine is displayed, and the length required for setting the work machine is determined by tracing the display screen with a fingertip on the setting screen. At the same time as changing the number representing, the size of the displayed schematic image is changed.

  According to a second aspect of the present invention, on the setting screen of the display device, a work machine selection screen for selecting a type of work machine is displayed in advance, and the work machine name or a schematic image of the work machine is displayed on the work machine selection screen. And selectable.

  According to a third aspect of the present invention, a screen for selecting the manufacturer name and model of the work implement is displayed on the work implement selection screen of the display device.

  By using the means as described above, the operator can easily change the setting value of the work implement by a touch operation by displaying a setting screen using an operation terminal (remote operation device).

The schematic side view which operates an autonomous running work vehicle with a remote control device. Control block diagram. The figure which shows the state at the time of the parallel work by an autonomous running work vehicle and an accompanying running work vehicle. The figure which shows the display apparatus of a remote control device. The figure which shows embodiment which changes the length of a working machine by finger operation. The figure which shows the screen which sets a working machine with a manufacturer and a model.

  The first work vehicle and the second work vehicle that perform work while running side by side are unmanned or manned tractors. First, the first work vehicle, which is a typical combination, is an autonomous traveling work vehicle 1 that can automatically run unattended, and the second work vehicle is accompanied by the first work vehicle and the operator boarded and steered. An embodiment in which the accompanying traveling work vehicle 100 is used will be described. Rotary tillage devices 24 and 224 are mounted as work machines on the autonomous traveling work vehicle 1 serving as the first working vehicle and the accompanying traveling working vehicle 100 serving as the second working vehicle. However, the first work vehicle and the second work vehicle are not limited to tractors, and may be a combine. The work machine is not limited to the rotary tiller 24, and a fertilizer seeding machine, a mowing machine, and a chemical sprayer. It may be a machine, a disinfector, a harvester, or the like.

  1 and 2, an overall configuration of a tractor that becomes an autonomous traveling work vehicle 1 will be described. An engine 3 is installed in the hood 2, a dashboard 14 is provided in a cabin 11 at the rear of the hood 2, and a steering handle 4 serving as a steering operation means is provided on the dashboard 14. The steering wheel 4 is rotated to rotate the front wheels 9 and 9 through the steering device. The steering direction of the autonomous traveling work vehicle 1 is detected by the steering sensor 20. The steering sensor 20 is composed of an angle sensor such as a rotary encoder, and is disposed at the rotation base of the front wheel 9. However, the detection configuration of the steering sensor 20 is not limited as long as the steering direction is recognized, and the rotation of the steering handle 4 may be detected or the operation amount of the power steering may be detected. The detection value obtained by the steering sensor 20 is input to the control device 30. The control device 30 includes a CPU (central processing unit), a storage device 30m such as a RAM and a ROM, an interface, and the like, and the storage device 30m stores a program, data, and the like for operating the autonomous traveling work vehicle 1.

  A driver seat 5 is disposed behind the steering handle 4, and a mission case 6 is disposed below the driver seat 5. Rear axle cases 8 and 8 are connected to the left and right sides of the transmission case 6, and rear wheels 10 and 10 are supported on the rear axle cases 8 and 8 via axles. The power from the engine 3 is shifted by a transmission (a main transmission or an auxiliary transmission) in the mission case 6 so that the rear wheels 10 and 10 can be driven. The transmission is constituted by, for example, a hydraulic continuously variable transmission, and the movable swash plate of a variable displacement hydraulic pump is operated by a transmission means 44 such as a motor so that the transmission can be changed. The speed change means 44 is connected to the control device 30. The rotational speed of the rear wheel 10 is detected by the vehicle speed sensor 27 and is input to the control device 30 as the traveling speed. However, the vehicle speed detection method and the arrangement position of the vehicle speed sensor 27 are not limited.

  The transmission case 6 houses a PTO clutch and a PTO transmission. The PTO clutch is turned on and off by a PTO on / off means 45. The PTO on / off means 45 is connected to the control device 30 to connect and disconnect the power to the PTO shaft. It can be controlled.

  A front axle case 7 is supported on a front frame 13 that supports the engine 3, front wheels 9 and 9 are supported on both sides of the front axle case 7, and power from the transmission case 6 can be transmitted to the front wheels 9 and 9. It is configured. The front wheels 9 and 9 are steered wheels, which can be turned by turning the steering handle 4, and the front wheels 9 and 9 are steered left and right by a steering actuator 40 comprising a power steering cylinder as a driving means of the steering device. It can be turned. The steering actuator 40 is connected to the control device 30 and is controlled and driven by automatic traveling means.

  An engine controller 60 serving as engine rotation control means is connected to the control device 30, and an engine rotation speed sensor 61, a water temperature sensor, a hydraulic pressure sensor, and the like are connected to the engine controller 60 so that the state of the engine can be detected. The engine controller 60 detects the load from the set rotational speed and the actual rotational speed and controls it so as not to overload, and transmits the state of the engine 3 to the remote operation device 112 serving as an operation terminal to be described later. It can be displayed.

  The fuel tank 15 disposed below the step is provided with a level sensor 29 for detecting the fuel level and is connected to the control device 30. The display means 49 provided on the dashboard of the autonomous traveling work vehicle 1 has a fuel supply. A fuel gauge for displaying the remaining amount is provided and connected to the control device 30. Then, information regarding the remaining amount of fuel is transmitted from the control device 30 to the remote operation device 112, and the remaining fuel amount and workable time can be displayed on the display device 113 of the remote operation device 112.

  On the dashboard 14, display means 49 for displaying an engine tachometer, a fuel gauge, a hydraulic pressure, etc., an abnormal monitor, a set value, and the like are arranged.

  Further, a rotary tiller 24 is installed on the rear side of the tractor body as a work machine via a work machine mounting device 23 so as to be movable up and down. An elevating cylinder 26 is provided on the transmission case 6, and the elevating arm 26 constituting the work implement mounting device 23 is rotated by moving the elevating cylinder 26 to extend and lower the rotary tiller 24. The lift cylinder 26 is expanded and contracted by the operation of the lift actuator 25, and the lift actuator 25 is connected to the control device 30.

  A mobile communication device 33 constituting a satellite positioning system is connected to the control device 30. A mobile GPS antenna 34 and a data receiving antenna 38 are connected to the mobile communication device 33, and the mobile GPS antenna 34 and the data receiving antenna 38 are provided on the cabin 11. The mobile communicator 33 is provided with a position calculating means for transmitting latitude and longitude to the control device 30 so that the current position can be grasped. In addition to GPS (United States), high-precision positioning can be performed by using a satellite positioning system (GNSS) such as a quasi-zenith satellite (Japan) or a Glonus satellite (Russia). In this embodiment, GPS is used. explain.

The autonomous traveling work vehicle 1 includes a gyro sensor 31 for obtaining attitude change information of the airframe, and an orientation sensor 32 for detecting a traveling direction, and is connected to the control device 30. However, since the traveling direction can be calculated from the GPS position measurement, the direction sensor 32 can be omitted.
The gyro sensor 31 detects an angular velocity of a tilt (pitch) in the longitudinal direction of the autonomous traveling work vehicle 1, an angular velocity of a tilt (roll) in the lateral direction of the aircraft, and an angular velocity of turning (yaw). By integrating and calculating the three angular velocities, it is possible to obtain the tilt angle in the front-rear direction and the left-right direction and the turning angle of the body of the autonomous traveling work vehicle 1. Specific examples of the gyro sensor 31 include a mechanical gyro sensor, an optical gyro sensor, a fluid gyro sensor, and a vibration gyro sensor. The gyro sensor 31 is connected to the control device 30 and inputs information relating to the three angular velocities to the control device 30.

  The direction sensor 32 detects the direction (traveling direction) of the autonomous traveling work vehicle 1. A specific example of the direction sensor 32 includes a magnetic direction sensor. The direction sensor 32 is connected to the control device 30 and inputs information related to the orientation of the aircraft to the control device 30.

  In this way, the control device 30 calculates the signals acquired from the gyro sensor 31 and the azimuth sensor 32 by the attitude / azimuth calculation means, and the attitude of the autonomous traveling work vehicle 1 (orientation, forward / backward direction of the body, left / right direction of the body, turning direction) )

Next, a method for acquiring the position information of the autonomous traveling work vehicle 1 using the GPS (global positioning system) will be described.
GPS was originally developed as a navigation support system for aircraft, ships, etc., and is composed of 24 GPS satellites (four in six orbital planes) orbiting around 20,000 kilometers above the ground. It consists of a control station that performs tracking and control, and a user communication device that performs positioning.
As a positioning method using GPS, there are various methods such as single positioning, relative positioning, DGPS (differential GPS) positioning, RTK-GPS (real-time kinematics-GPS) positioning, and any of these methods can be used. However, in this embodiment, an RTK-GPS positioning method with high measurement accuracy is adopted, and this method will be described with reference to FIGS.

  RTK-GPS (real-time kinematics-GPS) positioning is performed by simultaneously performing GPS observations on a reference station whose position is known and a mobile station whose position is to be obtained. Is transmitted in real time, and the position of the mobile station is obtained in real time based on the position result of the reference station.

  In the present embodiment, a mobile communication device 33 serving as a mobile station, a mobile GPS antenna 34, and a data receiving antenna 38 are arranged in the autonomous traveling work vehicle 1, and a fixed communication device 35 serving as a reference station, a fixed GPS antenna 36, and a data transmission antenna. 39 is disposed at a predetermined position that does not interfere with the work in the field. In the RTK-GPS (real-time kinematic-GPS) positioning of the present embodiment, phase measurement (relative positioning) is performed at both the reference station and the mobile station, and data measured by the fixed communication device 35 of the reference station is transmitted from the data transmission antenna 39. Transmit to the data receiving antenna 38.

  The mobile GPS antenna 34 arranged in the autonomous traveling work vehicle 1 receives signals from GPS satellites 37, 37. This signal is transmitted to the mobile communication device 33 for positioning. At the same time, signals from GPS satellites 37, 37... Are received by a fixed GPS antenna 36 serving as a reference station, measured by a fixed communication device 35, transmitted to the mobile communication device 33, and the observed data is analyzed and moved. Determine the station location. The position information obtained in this way is transmitted to the control device 30.

  Thus, the control device 30 in the autonomous traveling work vehicle 1 includes automatic traveling means for automatically traveling. The automatic traveling means receives radio waves transmitted from the GPS satellites 37, 37. The position information of the aircraft is obtained at time intervals, the displacement information and the orientation information of the aircraft are obtained from the gyro sensor 31 and the orientation sensor 32, and along the set route R preset by the aircraft based on the position information, the displacement information, and the orientation information. The steering actuator 40, the speed change means 44, the lifting / lowering actuator 25, the PTO on / off means 45, the engine controller 60, etc. are controlled so as to automatically run and work automatically. In addition, the positional information on the outer periphery of the field H which becomes a work range is also set in advance by a known method and stored in the storage device 30m.

  In addition, an obstacle sensor 41 is disposed on the autonomous traveling work vehicle 1 and is connected to the control device 30 so as not to contact the obstacle. For example, the obstacle sensor 41 is composed of a laser sensor or an ultrasonic sensor, and is arranged at the front, side, or rear of the aircraft and connected to the control device 30, and there are obstacles at the front, side, or rear of the aircraft. Whether or not an obstacle approaches within a set distance is controlled to stop traveling.

  In addition, the autonomous traveling work vehicle 1 is mounted with a camera 42 </ b> F for photographing the front, a working machine behind the camera 42 </ b> R, and a camera 42 </ b> R for photographing a state after work. In this embodiment, the cameras 42F and 42R are arranged on the front part and the rear part of the roof of the cabin 11. However, the arrangement positions are not limited, and one camera is arranged on the front part and the rear part in the cabin 11. The camera 42 may be arranged at the center of the aircraft and rotated around the vertical axis to photograph the surroundings, or the camera 42 may be arranged at the four corners of the aircraft to photograph the surroundings of the aircraft. Images captured by the cameras 42F and 42R are displayed on the display device 113 of the remote operation device 112 provided in the accompanying traveling work vehicle 100.

  The remote control device 112 sets the travel route R of the autonomous traveling work vehicle 1, remotely operates the autonomous traveling work vehicle 1, monitors the traveling state of the autonomous traveling work vehicle 1 and the operating state of the work implement, Work data is stored, and includes a control device (CPU and memory) 119, a communication device 111, a display device 113, and the like.

  The accompanying traveling work vehicle 100, which is a manned traveling vehicle, is operated by an operator, and a remote operation device 112 is mounted on the accompanying traveling work vehicle 100 so that the autonomous traveling work vehicle 1 can be operated. Since the basic configuration of the accompanying traveling work vehicle 100 is substantially the same as that of the autonomous traveling work vehicle 1, detailed description thereof is omitted. The accompanying traveling work vehicle 100 (or the remote control device 112) may include a GPS mobile communication device 233, a mobile GPS antenna 234, and a data receiving antenna 238. Further, the steering sensor 120, the angle sensor 121, the shift position detecting means 122, the engine speed detecting means 123, the PTO on / off detecting means 124, the elevating actuator 125, the vehicle speed sensor 127, the travel stopping means 143, the speed changing means 144, and the PTO entering It is also possible to configure the vehicle to automatically run with the cutting means 245 and the like.

  The remote operation device 112 can be attached to and detached from an operation unit such as a dashboard of the accompanying traveling work vehicle 100 and the autonomous traveling work vehicle 1. The remote control device 112 can be operated while attached to the dashboard of the accompanying traveling work vehicle 100, or can be taken out of the accompanying traveling work vehicle 100 to be carried and operated, or attached to the dashboard of the autonomous traveling work vehicle 1. Can be operated. The remote operation device 112 can be configured by, for example, a notebook or tablet personal computer. In this embodiment, a tablet computer is used.

  Further, the remote operation device 112 and the autonomous traveling work vehicle 1 are configured to be able to communicate with each other wirelessly, and the autonomous traveling work vehicle 1 and the remote operation device 112 are provided with communication devices 110 and 111 for communication, respectively. ing. Further, the remote control device 112 can communicate with the control device 130 of the accompanying traveling work vehicle 100 via the communication devices 133 and 111. The communication device 111 is configured integrally with the remote operation device 112. The communication means is configured to be able to communicate with each other via a wireless LAN such as WiFi. The remote operation device 112 is provided with a display device 113 as a touch panel type operation screen that can be operated by touching the screen on the surface of the housing, and a communication device 111, a CPU, a storage device, a battery, and the like are housed in the housing.

In such a configuration, the set travel route R is set in advance in the field H as shown in FIG. 3 and stored in the storage device 30m, so that the autonomous traveling work vehicle 1 can travel along the set travel route R. Note that map data (information) is referred to in order to determine the position of the field H, to travel using a satellite positioning system, and to set a travel route R. Public map data, map data distributed by map makers, etc., car navigation map data, and the like are used.
Then, the work widths of the rotary tilling devices of the autonomous traveling work vehicle 1 and the accompanying traveling work vehicle 100 are partially overlapped so that the accompanying traveling work vehicle 100 travels obliquely behind the autonomous traveling work vehicle 1 and works in parallel. Do. However, the accompanying traveling work vehicle 100 can be configured to perform another work by traveling behind the autonomous traveling work vehicle 1, and the working form is not limited.

  On the display device 113 of the remote operation device 112, the video taken by the cameras 42F and 42R, the state of the autonomous traveling work vehicle 1, the state of work, and information on GPS are transmitted to the control device 119 via the communication devices 110 and 111. The video, information, operation screen, and the like can be displayed, and the operator can operate the remote operation device 112 while monitoring the autonomous traveling work vehicle 1.

  In addition, the remote operation device 112 serving as an operation terminal can display a setting screen in addition to a screen for remote operation. In the state where the setting screen is displayed, various lengths of the work implements attached to the autonomous traveling work vehicle 1 can be set. Note that the setting screen can be configured to be set not only by the operation terminal but also by the display means 49 of the autonomous traveling work vehicle 1 or the display means provided in the control unit of the accompanying traveling work vehicle 100.

  Each set length of the work implement is necessary for setting a travel route R for allowing the autonomous traveling work vehicle 1 to travel autonomously. In other words, the left and right width of the work machine and the eccentric length from the left and right center of the machine body are the work width. It is also necessary to ensure that there is no leftover work. In plan view, the longitudinal length from the mobile GPS antenna 34 to the rear end of the work implement is necessary for setting the work start position, the position where the head reaches the headland, the work is stopped, the minimum turning radius when turning, etc. It becomes. In addition, it is necessary to set the left and right overlapping lengths during reciprocal work or when two cars are working side by side.

A screen for setting each length will be described. It should be noted that the length setting screen can be easily called and displayed by appropriate button operation or the like.
As shown in FIG. 4, the setting screen displayed on the display device 113 of the remote operation device 112 serving as the operation terminal includes a work implement selection screen 113s and a length setting screen 113g. The work machine selection screen 113s and the length setting screen 113g are displayed side by side. However, the arrangement positions and sizes of the work machine selection screen 113s and the length setting screen 113g are not limited. Alternatively, the work implement selection screen 113s may be displayed on the entire screen, and the selection may be switched to the length setting screen 113g after selection.

  The work machine selection screen 113s displays names of a plurality of work machines that can be mounted on the autonomous traveling work vehicle 1. Or you may display only the working machine which you have. However, since the name of the work machine is difficult to understand or mistaken in katakana, a schematic image representing the work machine may be displayed in addition to the name of the work machine. In this embodiment, a rotary tiller button, a boom sprayer button, a trencher button, a hello button, and other buttons are displayed. For example, when a rotary tiller button is touched, as shown in FIG. 4, a schematic diagram in which the rotary tiller is mounted on the tractor is displayed on the length setting screen 113g on the right side. When the trencher button is touched, as shown in FIG. 6, a schematic diagram in which the trencher is attached to the tractor is displayed on the length setting screen 113g. When the other button is touched, a subsoiler, a seeder, a fertilizer, a work machine such as a cult or a mower that can be mounted on a tractor not displayed on the work machine selection screen 113s is displayed. Although the work implement displayed on the length setting screen 113g is a rear mount, it may be a mid mount or a front mount, and the schematic diagram also shows a schematic diagram of the mid mount and front mount according to the work implement. indicate.

  The length setting screen 113g includes a tractor, a work implement mounted on the tractor, a left and right length (width) X of the work implement, and the front and rear from the center of the mobile GPS antenna 34 to the rear end of the work implement. The length Y and the overlap length W are displayed. In addition, although it is not illustrated about the working machine arrange | positioned eccentrically, such as a coating machine, the eccentric length is also displayed.

  The left-right length X, the front-rear length Y, and the overlap length W on the length setting screen 113g are displayed as numbers. When the rotary tiller is replaced, when a cultivating plate is attached to the side or rear of the rotary tiller, or when the rear cover is extended, the left and right length X or the front and rear length Y of the work implement is increased or decreased. As shown in FIG. 5, the left / right length X or the front / back length Y of the work implement can be changed by an operation of tracing the work implement portion (or dimension portion) with a finger such as pinch-in, pinch-out, or dragging. Similarly, the overlapping length W can be changed.

  When the left / right length X or the front / back length Y of the work implement is changed by tracing the work implement portion (or dimension portion) with the finger, the picture portion of the work implement portion is simultaneously enlarged or reduced, and the left / right length A number representing X or front / rear length Y is also increased or decreased. In this way, the length and shape when operated with a finger are displayed on the length setting screen 113g, and the setting can be easily changed, and the result of the setting change can also be easily recognized on the screen for increasing or decreasing the picture size and numbers. It becomes like this.

  Also, instead of tracing the work implement part with your finger, touching the number part that represents the left / right length X or the front / rear length Y will display a number increase / decrease mark or numeric keypad so that this increase / decrease mark is displayed. Alternatively, the display length can be changed by inputting a number by operating the numeric keypad or the numeric keypad.

  Also, instead of tracing the work machine part with a finger, the manufacturer name and model, the left and right length X and the front and rear length Y of the model are stored in advance in the control device 119 of the remote control device 112, and the operator Can be configured such that the left and right length X and the front and back length Y matching the model are displayed on the length setting screen 113g simply by selecting the manufacturer name and model on the setting screen. For example, when the trencher is touched and selected on the work machine selection screen 113s, the setting screen shown in FIG. 6 is displayed, and the manufacturer name selection screen 113m and the model selection screen 113k are displayed. The manufacturer name selection screen 113m is scrolled so that the manufacturer names are sequentially displayed. By scrolling with the finger flicking up or down, the corresponding manufacturer name is displayed and can be selected by touching. Yes. The model selection screen 113k displays the model of a work machine (trencher) manufactured or sold by the manufacturer. If there are many models, they can be scrolled and displayed. Thus, by scrolling with an operation of flicking up or down with a finger, the corresponding model is displayed, and when selected by touching, the corresponding work implement and its length (left and right length X, The front-rear length Y) is displayed. Since the work implement may be improved independently, the left / right length X and the front / rear length Y may be configured to be changeable by an operation of tracing the work implement portion (or dimension portion) with a finger as described above. it can. In addition, the change display on the manufacturer name selection screen 113m and the model selection screen 113k is scrolling, but it is also possible to select an eye or ABC, and is not limited.

  As described above, the left / right length, the front / rear length, and the work of the work machine mounted on the autonomous traveling work vehicle 1 that can automatically travel and work along the traveling route R set using the satellite positioning system. A remote operation device 112 serving as an operation terminal capable of setting a time overlap amount, etc., and the remote operation device 112 can communicate with the control device 30 of the autonomous traveling work vehicle 1 by the communication devices 110 and 111. The operation device 112 includes a control device 119 and a display device 113. The display device 113 can be touch-operated. On the setting screen of the work machine, a schematic diagram of the work vehicle and the work machine is displayed. In the operation of tracing the display screen, the number representing the length necessary for setting the work implement is changed and at the same time the size of the displayed schematic image is changed. By sol, it can be configured easily change the length, it can be easily recognized by a change in size of the changed state even images.

  The setting screen of the display device 113 displays a work machine selection screen 113s for selecting a type of work machine in advance, and the work machine name or a schematic image of the work machine is displayed on the work machine selection screen 113s. Since it is possible to select, it is not necessary to input the name of the work machine, and it can be easily selected. Further, it can be easily selected by visual judgment with reference to the schematic diagram.

  Further, since the screen for selecting the manufacturer and model of the work machine is displayed on the work machine selection screen 113s of the display device, it can be easily selected by touching the left and right length X of the selected work machine and the front and rear. Since the length Y is stored in advance, it is not necessary to input a number again, and the setting operation can be easily performed.

DESCRIPTION OF SYMBOLS 1 Autonomous traveling work vehicle 30 Control apparatus 110 * 111 Communication apparatus 112 Remote operation apparatus (operation terminal)
113 Display device 113s Work implement selection screen 113g Length setting screen 119 Control device

Claims (3)

  Using the satellite positioning system, set the left and right lengths, front and back lengths of work implements installed in autonomous traveling work vehicles that can automatically run and work along the set travel route, and the amount of duplication during work. An operation terminal capable of communicating with a control device of an autonomous traveling work vehicle via a communication device, the operation terminal including a control device and a display device, wherein the display device is capable of touch operation. In the work machine setting screen, a schematic diagram of the work vehicle and the work machine is displayed, and at the same time the number representing the length required for setting the work machine is changed by tracing the display screen with a fingertip on the setting screen, An operation terminal that changes a size of a displayed schematic image.   On the setting screen of the display device, a work machine selection screen for selecting the type of work machine is displayed in advance, and the name of the work machine or a schematic image of the work machine is displayed on the work machine selection screen to enable selection. The operation terminal according to claim 1.   The operation terminal according to claim 1 or 2, wherein a screen for selecting a manufacturer name and a model of the work machine is displayed on the work machine selection screen of the display device.

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