WO2019194628A1 - 이동 로봇 및 그 제어방법 - Google Patents
이동 로봇 및 그 제어방법 Download PDFInfo
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- WO2019194628A1 WO2019194628A1 PCT/KR2019/004051 KR2019004051W WO2019194628A1 WO 2019194628 A1 WO2019194628 A1 WO 2019194628A1 KR 2019004051 W KR2019004051 W KR 2019004051W WO 2019194628 A1 WO2019194628 A1 WO 2019194628A1
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- boundary line
- waypoint
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Definitions
- the present invention relates to a mobile robot and a control method thereof, and more particularly to a mobile robot and a control method for autonomous driving in a designated area.
- a robot In general, a robot is a device that automatically performs a predetermined operation while driving itself in a predetermined region without a user's manipulation.
- the robot senses obstacles installed in the area and approaches or avoids the obstacles to perform a designated action.
- the lawn mower is a riding type device that mows the grass on the floor or cuts the grass while the user moves in accordance with the driving of the user, and a workbehind type or hand type device for mowing the lawn while the user manually drags or slides it. There is.
- Such lawn mowers are moved by direct manipulation of the user, and there is a hassle of operating the user's own device by mowing the lawn.
- Republic of Korea Patent Registration 10-1513050 in order to set the area to move the lawn mower robot to embed the wire where the grass is planted, to control the mobile robot to move in the inner region of the wire.
- the robot moves by controlling coordinate wires.
- US Patent Application No. 20170344012 relates to a robot working tool system for working within a work area divided into at least one section by setting a physical or virtual boundary.
- the robot travels in a straight line in the section, and changes the trajectory when the section boundary is reached, and travels along the boundary when moving from one section to the next section.
- US Patent Publication No. 20180064024 is configured to move the robot according to the movement pattern in the divided region by dividing the region.
- the robot moves along the reference line of the boundary line.
- the robot moves to the point of the wire close to the current position and moves along the boundary line by the wire.
- wheel grooves are formed on the floor in the process of repeatedly moving a specific area.
- the groove may occur when the groove does not escape from the groove, and water may accumulate in the groove, and thus, the robot may act as an obstacle in normal driving during the next driving.
- An object of the present invention is to provide a mobile robot and a control method for moving to a target point by setting at least one passing point in a moving path starting from a current position of the mobile robot to a target point based on a map. Is in.
- Mobile robot for achieving the above object, within the area separated for the boundary line, to set the movement path to move from the starting point to the target point based on the map, at least between the starting point and the target point
- the movement path to move from the starting point to the target point based on the map, at least between the starting point and the target point
- it is characterized by moving to the target point according to the movement route passing through the waypoint.
- the present invention is characterized in that when the mobile robot can not travel in a straight line to the target point at least one waypoint is set, the movement path connecting the waypoint.
- the present invention is characterized in that the mobile robot sets at least one feature point on the basis of the boundary line and sets a waypoint at an adjacent position based on the feature point in an area divided by the boundary line.
- the present invention is characterized in that the mobile robot sets a plurality of waypoint candidates at adjacent positions based on the feature points, and sets any one of the plurality of waypoint candidates as waypoints.
- the mobile robot of the present invention is characterized by modifying the movement route by setting a new waypoint when a situation occurs in which the vehicle cannot travel while moving to the target point according to the movement route.
- the mobile robot of the present invention includes: a main body that travels an area formed by a boundary line; A driving unit which moves the main body; An obstacle detecting unit detecting an obstacle; Avoiding the obstacle to be detected, and controls the driving unit so that the main body does not deviate out of the area by invading the boundary line, and when the main body moves, between the target point and the starting point to move, for avoiding the boundary line or the obstacle And a controller configured to set at least one waypoint and set a movement route connecting the starting point, the waypoint and the target point in a straight line.
- the control method of the mobile robot of the present invention comprises the steps of: identifying a position of a target point to be moved in an area formed by a boundary line; Setting at least one waypoint between the starting point and the target point to avoid the boundary and obstacle; Setting a movement route connecting the starting point, the waypoint, and the target point in a straight line; And moving to the target point according to the movement route.
- the mobile robot and its control method according to the present invention can be easily moved within the boundary line by setting a waypoint to move based on a feature point extracted based on a map, and a moving path connecting the waypoints.
- the present invention can shorten the moving distance by setting the moving route by designating a waypoint.
- the present invention can accurately move to the target point in a short time through the movement route including the waypoint.
- the present invention can easily set the movement route by designating a waypoint according to the shape of the boundary line or the position of the obstacle.
- the present invention can easily change the movement path even if a sudden situation occurs.
- a plurality of waypoint candidates are set based on a feature point set as a reference as a boundary line, and one of the waypoint candidates is designated as a waypoint, so that the movement route can be easily modified.
- the position may be corrected using a boundary line or a feature point.
- the waypoint may be moved to a position adjacent to the target point.
- the present invention can move to the target point regardless of the boundary line.
- the present invention can be easily moved even at a point away from the boundary line.
- At least one waypoint may be set between the new target point and the new moving route may be set to travel.
- the present invention moves within the area formed by the boundary line, but by setting a new movement path according to the target point, it is possible to prevent the groove is formed on the floor because it does not repeatedly move to a specific position.
- FIG. 1 is a perspective view showing a mobile robot according to an embodiment of the present invention.
- FIG. 2 is a block diagram illustrating main parts of a mobile robot according to an exemplary embodiment of the present invention.
- 3 is an exemplary view referred to to explain the traveling area and the boundary line of a mobile robot according to an embodiment of the present invention.
- FIG. 4 is a diagram referred to describe a movement route using a waypoint of a mobile robot according to an embodiment of the present invention.
- FIG. 5 is a diagram illustrating a waypoint candidate for designating a waypoint of FIG. 4.
- FIG. 6 is a view referred to for explaining the change in the movement path of the mobile robot according to an embodiment of the present invention.
- FIG 7 and 8 are views for explaining the movement path setting according to the target point of the mobile robot according to an embodiment of the present invention.
- FIG. 9 is a flowchart illustrating a control method of a mobile robot moving using a waypoint according to an embodiment of the present invention.
- FIG. 10 is a flowchart illustrating a method for setting a movement path of a mobile robot according to an embodiment of the present invention.
- FIG. 11 is a flowchart illustrating a method of changing a movement path of a mobile robot according to an embodiment of the present invention.
- control configuration of the present invention may be composed of at least one processor.
- FIG. 1 is a diagram showing a mobile robot according to an embodiment of the present invention.
- the mobile robot 100 as shown in Figure 1, the casing forming the appearance of the main body and forming a space in which the parts are received, and the obstacle detection disposed on the front of the main body to detect the obstacle A unit (not shown) and moving wheels (left and right wheels) configured to move and rotate the mobile robot are included.
- the lower end of the main body may further include an auxiliary wheel (not shown), and includes a battery (not shown) for providing power according to the driving.
- the mobile robot 100 is provided with a suction unit that sucks dust from the bottom surface of the cleaning robot, and in the case of a lawn mower robot, a cutting unit (not shown) cuts the grass or weeds to a predetermined size from the bottom surface. Or it is formed on the bottom surface of the body.
- the mobile robot of the present invention will be described as an example of a lawnmower robot, but may be applied to a cleaning robot in relation to movement in an area using a map described below, setting a waypoint, setting and modifying a movement path, and It specifies that any mobile robot that is autonomous can be applied.
- the mobile robot 100 travels through an area formed by a boundary line.
- the mobile robot 100 detects a boundary line and may travel along the boundary line.
- the mobile robot 100 sets any one side of the area formed by the boundary line as the area.
- the mobile robot sets the inner region of the boundary line as the driving region.
- the mobile robot travels within the set area while keeping the boundary within the boundary.
- the mobile robot 100 does not travel beyond the boundary line or pass through the boundary line even when a physical barrier such as a wall or a fence is not located.
- the mobile robot 100 detects a boundary line while driving, senses an obstacle located in a driving direction, and avoids and runs.
- the mobile robot 100 may move by mowing the grass on the floor in the area.
- the mobile robot 100 may generate a map of the area based on the detected boundary line and the obstacle information. While moving the set area, the mobile robot 100 may classify the runable area and the impossible area and store it in a map.
- the mobile robot 100 may determine the location by calculating coordinates for obstacles and boundary lines on the map.
- the mobile robot 100 may calculate the location of the charging station and store the location on the map, and determine the location.
- the mobile robot 100 may extract a feature point based on the position of the boundary line or the obstacle, set at least one waypoint based on the feature point, and set a movement route connecting the waypoint.
- the mobile robot designates a position so as not to invade the boundary line with respect to a partial area that moves a point that cannot be linearly traveled, and any point where the linear movement is hindered can be set as a feature point.
- the mobile robot 100 may set a movement route including at least one waypoint from the starting point to the target point.
- the feature point may be set at any one point of the protruding region and is a bending point of the boundary line, for example, a corner, a position of an obstacle, and an edge of a boundary formed by the obstacle.
- Feature points may be formed at concave edges as well as convex edges.
- the waypoint may be set to any one of a plurality of waypoint candidates set at a predetermined distance from the feature point, including the feature point.
- the feature point may also be set as a waypoint.
- the mobile robot 100 stops performing the operation in response to the state of the battery and returns to the charging station (not shown) to charge it.
- the charging station transmits a guide signal for the return of the mobile robot, and the mobile robot receives the guide signal and returns to the charging station.
- the mobile robot 100 may communicate with a terminal (not shown) to share a map and operate according to a control command of the terminal.
- the mobile robot 100 may transmit data on the current state to the terminal to output a message indicating that the battery is being charged through the terminal.
- FIG. 2 is a block diagram illustrating main parts of a mobile robot according to an exemplary embodiment of the present invention.
- the mobile robot 100 includes an obstacle detecting unit 120, an input / output unit 130, a driving unit 170, a cutting unit 160, a communication unit 150, a data unit 140, and the like. It includes a control unit 110 for controlling the overall operation.
- the input / output unit 130 includes input means such as at least one button, a switch, a touch pad, and output means such as a display unit or a speaker, and receives a user command and outputs an operation state of the mobile robot.
- the input / output unit 130 may output a warning when an abnormality occurs in the mobile robot or when an inoperable or isolated situation occurs.
- the data unit 140 stores an input sensing signal, stores reference data for determining an obstacle, and stores obstacle information on the detected obstacle. In addition, the data unit 140 stores control data for controlling the operation of the mobile robot and data according to the operation mode of the mobile robot.
- the data unit 140 stores the collected location information, and stores the map and the information about the boundary line and the driving area.
- the data unit 140 stores data that can be read by a microprocessor, and includes a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, and a RAM. , CD-ROM, magnetic tape, floppy disk, optical data storage device.
- HDD hard disk drive
- SSD solid state disk
- SDD silicon disk drive
- ROM read only memory
- RAM random access memory
- the communication unit 150 may communicate with a terminal located within a predetermined distance by wire or wireless communication.
- the communication unit 150 may be connected to a predetermined network to communicate with a terminal for controlling an external server or a mobile robot.
- the communication unit 270 transmits the generated map to the terminal, receives a command from the terminal, and transmits data on the operation state of the mobile robot to the terminal.
- the communication unit 270 transmits and receives data including communication modules such as Wi-Fi and WiBro, as well as short-range wireless communication such as Zigbee and Bluetooth.
- the driving unit 170 includes at least one driving motor to allow the mobile robot to travel according to a control command of the controller 110.
- the driving unit 170 may include a left wheel driving motor for rotating the left wheel and a right wheel driving motor for rotating the right wheel, and may also include an auxiliary wheel.
- the left wheel drive motor and the right wheel drive motor rotate in the same direction, but when the left wheel drive motor and the right wheel drive motor rotate at different speeds or in opposite directions, the driving direction of the main body 10 is rotated. This can be switched.
- At least one auxiliary wheel (not shown) may be further provided to stably support the main body 10.
- the cutting unit 160 cuts the grass on the bottom while driving.
- Cutting unit 160 is provided with a brush or a blade for mowing the lawn to mow the grass through the rotation.
- the obstacle detecting unit 120 includes a plurality of sensors to detect an obstacle located in a driving direction.
- the obstacle detecting unit 120 may detect an obstacle in front of the main body, that is, a driving direction, by using at least one of a laser, an ultrasonic wave, an infrared ray, and a 3D sensor.
- the obstacle detecting unit may further include a cliff detecting sensor installed on a rear surface of the main body to detect a cliff.
- the obstacle detecting unit 120 may include a camera that detects an obstacle by photographing the front.
- the camera is a digital camera and may include an image sensor (not shown) and an image processor (not shown).
- An image sensor is an apparatus that converts an optical image into an electrical signal, and is composed of a chip in which a plurality of photo diodes are integrated. For example, a pixel is a photo diode. Charges are accumulated in each pixel by an image formed on the chip by light passing through the lens, and the charges accumulated in the pixels are converted into electrical signals (eg, voltages).
- the image sensor a charge coupled device (CCD), a complementary metal oxide semiconductor (CMOS), and the like are well known.
- the camera may include an image processor (DSP) for processing the captured image.
- DSP image processor
- the position sensing unit 180 includes a plurality of sensor modules for transmitting and receiving position information.
- the position sensing unit includes a GPS module for transmitting and receiving a GPS signal, or a position sensor module for transmitting and receiving position information from a position information transmitter.
- a GPS module for transmitting and receiving a GPS signal
- a position sensor module for transmitting and receiving position information from a position information transmitter.
- the location information transmitter transmits a signal by any one of ultrasonic waves, ultra wide band (UWB), and infrared rays
- UWB ultra wide band
- infrared rays a sensor module for transmitting and receiving ultrasonic waves, UWB, and infrared signals is provided.
- UWB radio technology uses a very wide frequency band of several GHz or more in the baseband, without using a radio carrier (RF carrier).
- UWB wireless technology uses very narrow pulses of several nanoseconds or several picoseconds. Since the pulses emitted from the UWB sensor are several nanos or several pico, the penetrability is good, so that even if there are obstacles in the vicinity, very short pulses emitted from other UWB sensors can be received.
- the UWB sensor may be formed of a transmitter and a receiver as one module.
- the signal of the UWB sensor can be transmitted through an obstacle, the user does not affect the signal transmission even when the user moves the terminal.
- a signal may not be transmitted or penetrates, but a transmission distance may be reduced.
- the mobile robot may be provided with a plurality of UWB sensors.
- UWB sensors When two UWB sensors are provided, for example, provided on the left and right sides of the main body, respectively, by receiving the signals, it is possible to accurately calculate the position by comparing the plurality of received signals. For example, if the distance measured by the sensor on the left and the sensor on the right is different according to the position of the position information transmitter or the terminal as a reference, the mobile robot uses the difference between the received signals and the relative position and the movement. The direction of the robot can be determined.
- the location information transmitter transmits a signal with a UWB sensor
- the terminal may receive a signal of the location information transmitter through the UWB signal provided.
- the mobile robot may include at least one tilt sensor (not shown) to detect the movement of the main body.
- the tilt sensor calculates the tilted direction and angle when the tilt sensor is tilted in the front, rear, left and right directions.
- the tilt sensor may be a tilt sensor, an acceleration sensor, or the like, and in the case of the acceleration sensor, any one of a gyro type, an inertial type, and a silicon semiconductor type may be applied.
- various sensors or devices capable of detecting the movement of the main body may be used.
- the mobile robot may further include a ground state detection sensor for detecting the ground state of the cleaning area, it may also detect the ground state using a sensor, or a camera of the obstacle detection unit.
- a ground state detection sensor for detecting the ground state of the cleaning area, it may also detect the ground state using a sensor, or a camera of the obstacle detection unit.
- the controller 110 controls input / output of data and controls the driving unit to move the mobile robot according to the setting.
- the controller 110 controls the driving unit 170 to independently control the operation of the left wheel driving motor and the right wheel driving motor so that the main body 10 travels straight or rotated.
- the controller 110 recognizes the detected boundary line and the obstacle and controls the driving.
- the controller 110 may set any one region of the region formed by the boundary line as an area capable of traveling.
- the controller 110 sets the boundary line in the form of a closed loop by connecting discontinuous position information in a line or a curve, and sets the inner region as an area capable of driving.
- the control unit 110 may set any one of the regions formed by the boundary lines as an area capable of traveling.
- the controller 110 generates a map based on the information acquired along the boundary line, the location information, and the information about the obstacle in the area detected while driving.
- the controller calculates coordinates from the map and determines a location by matching the area formed by the boundary line.
- the controller 110 controls the driving unit so as to travel within the area and not to leave the boundary line when the driving area and the boundary thereof are set.
- the controller 110 controls the driving based on the information of the boundary line and the obstacle detected while driving.
- control unit 110 may determine the obstacle information input by the obstacle detecting unit 120 to avoid obstacles and travel, and may modify a predetermined area in some cases.
- the controller 110 may determine the position of the obstacle in response to the obstacle information, set the avoidance direction by determining the type of the obstacle, and may not set to approach a predetermined distance when a cliff is detected.
- the controller 110 controls the cutting unit and the driving unit to drive the area and mow the lawn according to the input control command.
- the controller 110 may move to a specific position and start an operation in response to the control command.
- the controller calculates a current location, a starting point, and a target point based on a map to set a movement route.
- the controller 110 may calculate a plurality of feature points based on the boundary line and the obstacle and set a movement path based on the feature points based on the map.
- the controller 110 may set any point of the bending point, the corner, or the protruding area of the area formed by the boundary line or the obstacle as the feature point.
- the controller 110 may set a plurality of waypoint candidates at a predetermined distance and a predetermined angle based on the feature points, and may set at least one of the waypoint candidates as waypoints, and set a movement route connecting the starting point, waypoints and target points. .
- the controller 110 may set a waypoint based on the feature point, but may also set the feature point as a waypoint.
- the controller 110 sets a moving route by designating a waypoint when it is impossible to drive to a target point based on a map.
- the controller 110 may travel by setting a point adjacent to the target point within the area as a passing point.
- the waypoint set at this time may be a new target point.
- the controller 110 may determine the location and size of the obstacle and the shape (outline) of the obstacle to store the obstacle information and display the location on the map.
- the controller 110 may set the area where the obstacle is located as a non-movable area when the size of the obstacle is greater than or equal to a predetermined size.
- the controller 110 may change the movement route by setting a new route point when a new obstacle is detected or invades the boundary line while the vehicle is traveling according to the movement route.
- the controller may drive a predetermined time after driving for a predetermined time along the boundary line and drive to the target point.
- the controller avoids the obstacle detected through the obstacle detecting unit, but may invade the boundary line due to a position error in some cases, and move to the position of the obstacle.
- the controller 110 may generate a position error due to a slip, a movement by a ground state, a movement by a collision, or the like while driving.
- the controller 110 may travel along the boundary line and correct the position error. Also, the controller may correct the position error using the coordinate values of the feature points.
- 3 is an exemplary view referred to to explain the traveling area and the boundary line of a mobile robot according to an embodiment of the present invention.
- the mobile robot 100 travels an area inside the boundary line based on the boundary line L.
- the mobile robot 100 may travel a plurality of regions formed by a plurality of boundary lines.
- the boundary line L may be embedded with a wire at the bottom of the area where the mobile robot 100 travels, and may be formed by a marker installed or attached to the floor or wall.
- the boundary line L may be formed by a signal transmitted from a location information transmitter (not shown) provided in a plurality on one side of the region.
- the mobile robot may directly detect the wire and may detect the boundary line L by a magnetic field or induced electromotive force generated from the wire.
- the mobile robot may detect a boundary line by receiving a signal transmitted from a location information transmitter, and detect a boundary line by detecting a marker through an image. In addition, the mobile robot may determine the virtual boundary set on the map by the terminal connected to each other as the boundary line and control the driving.
- the method of setting the boundary line can be used in various ways in addition to the described wire, marker or signal transmission.
- the mobile robot 100 mows the grass while moving the internal area A formed by the boundary line L.
- the internal area A formed by the boundary line is a travelable area.
- the boundary line may be installed to avoid a plurality of obstacles, a house O1, a garden O5, a rock O2, a staircase O3, a swimming pool O4, or a pond.
- the boundary line may be installed except for the rock O2.
- obstacles larger than or equal to a certain size may be classified as non-driving area so that the boundary line may be separated. Can be modified.
- the mobile robot may restrict access to an area other than a grass or an obstacle area.
- the mobile robot 100 moves within the designated area when the area A to travel is set, and keeps the boundary line L from leaving the boundary.
- the mobile robot 100 moves the inner region of the region A with the boundary line L outside.
- the mobile robot 100 may move while maintaining the boundary line at the center of the mobile robot due to the difference in the way of detecting the boundary line.
- the mobile robot may determine that it has not left the boundary line.
- the mobile robot 100 may drive along the boundary line L to generate a map based on the acquired position information and obstacle information, calculate the coordinates of the map, and calculate the position by matching the coordinates with the area A.
- FIG. have.
- the mobile robot 100 may distinguish between the runnable area and the impossible area, and may modify the preset area based on information about an obstacle detected while driving.
- the mobile robot 100 stores the position of the charging stand. Since the mobile robot 100 acquires power for movement through charging, it is necessary to stop the operation set according to the battery state while driving and return to the charging station to charge the battery. Return to the charging station.
- the mobile robot 100 may set an initial start position as a charging station, and detect a charging station while traveling along a boundary line. When the location of the charging stand is detected, the mobile robot 100 stores the location of the charging stand on the map.
- the controller 110 may control the driving unit to ignore the boundary line and return to the charging station beyond the boundary when charging is required.
- the mobile robot may set the charging station return mode, temporarily cancel the setting of the area along the boundary line L among the charging station return mode, and search and return to the charging station based on the detected obstacle information.
- the mobile robot 100 may include a predetermined area connecting the charging stand from a point adjacent to the charging stand as a travelable area.
- the mobile robot 100 may set a reference position in the area A, calculate coordinates for each point in the area based on the reference position, and store the location information of each point.
- the mobile robot 100 may calculate a moving distance based on the rotation speed of the wheel, the moving speed, the rotation direction (the sensor value of the gyro sensor), and the like, and calculate the current position in the area accordingly.
- the mobile robot 100 may determine the position by using any one point as a reference position even when determining the position using the GPS.
- the mobile robot 100 may obtain location information using a GPS signal, an ultrasonic signal, an infrared signal, an electromagnetic signal, or an ultra wide band (UWB) signal.
- a GPS signal an ultrasonic signal, an infrared signal, an electromagnetic signal, or an ultra wide band (UWB) signal.
- UWB ultra wide band
- FIG. 4 is a diagram referred to describe a movement route using a waypoint of a mobile robot according to an embodiment of the present invention.
- the mobile robot 100 may move within an area formed by the boundary line L1.
- the mobile robot 100 may move from the starting point P1 to the target point P4.
- the mobile robot 100 may extract the respective points E1 to E7 of the plurality of bending points formed by the boundary line from the shape of the boundary line L1 and set the feature point.
- the mobile robot may optionally set a point E8 of a curve formed at a boundary where the line meets a line or a face and a face as a feature point, and any one point of the protruding region. Can be set.
- the mobile robot can set a position as a feature point for the shape of the region where linear movement is impossible by designating a position so as not to invade the boundary line with respect to a partial region moving the point where the linear movement cannot be performed.
- the first, second, fifth, sixth, seventh, eighth points (E1, E2, E5 to E8) among the plurality of feature points. If not, it can be excluded because it is less likely to be a point via a straight run in the area.
- the moving robot 100 when the mobile robot 100 cannot move in a straight path from the starting point P1 to the target point P4, the moving robot 100 includes at least one of the feature points as a waypoint to set the moving path. Can be.
- the mobile robot can set the third feature point E3 and the fourth feature point E1 as the first waypoint P2 and the second waypoint P3, respectively, in order to move from the starting point P1 to the target point P4. have.
- the mobile robot connects the third feature point E3 and the fourth feature point E4, that is, the first waypoint P2, the second waypoint P3, and the target point P4, respectively, from the starting point P1 in a straight line.
- the movement path L2 can be set. When traveling along the movement path L2, the mobile robot may travel along a boundary line between the third feature point E3 and the fourth feature point E4.
- the mobile robot can set the movement path in this way with respect to the case where the moving robot moves from the charging station to the starting point of mowing, when the mobile robot moves within the area when returning to the charging station from a specific point of the area.
- the mobile robot may set the movement path in the shortest distance with respect to the case of moving between points.
- the mobile robot passes through all of the designated area and runs while mowing the lawn on the floor.
- the driving robot changes the direction and then linearly runs again after changing the direction.
- the mobile robot can run zigzag or helically in the region.
- FIG. 5 is a diagram illustrating a waypoint candidate for designating a waypoint of FIG. 4.
- the mobile robot 100 moves from the starting point P1 to the target point P4.
- the controller 110 first determines whether the vehicle can travel in a straight path from the starting point P1 to the target point P4, and if it is determined that the vehicle cannot travel in the straight path, the controller 110 sets the movement path including the route point.
- the controller 110 passes through the first and second waypoints P2 and P3 of the feature points, that is, the third and fourth feature points E3 and E4, which are located in an area to pass to move to the target point P4 among the plurality of extracted feature points. ), You can set the movement path.
- the mobile robot sets a plurality of waypoint candidates based on the third and fourth feature points E3 and E4 to set any one of the plurality of waypoint candidates as waypoints. have.
- the mobile robot travels along the boundary line when passing through the third and fourth feature points E3 and E4.
- the mobile robot may deviate to the outside by invading the boundary line while cornering at the third and fourth feature points E3 and E4 while driving.
- the mobile robot may set a movement route that does not move along the boundary line by setting any one of the plurality of route candidates as a waypoint.
- the controller 110 may set a plurality of waypoint candidates at a plurality of points according to a distance in units of an angle with respect to the boundary line at which the feature point is located.
- the controller 110 may set the stopover candidate at a predetermined angle within a range of 15 degrees to 75 degrees.
- the controller may set a plurality of waypoint candidates at a plurality of points according to the distance from the feature point in consideration of the size of the mobile robot.
- the controller may change the distance within the range of 0.5m to 3.5m and set the waypoint candidate.
- the controller 110 may set the first, second, and third via candidates P11, P12, and P13 at positions away from the eleventh distance D11 based on the fourth feature points P3 and E4. .
- the controller 110 may set the fourth, fifth, and sixth way candidates P14, P15, and P16 at positions away from the fourth feature point P3 and E4 from the twelfth distance D12.
- control unit 110 passes through the first, fourth, and seventh candidates according to the distance on the line F12 forming the first angle with the extension line based on the extension line F11 extending the boundary line where the fourth feature point is located. (P11, P14, P17) can be set.
- second, fifth and eighth candidates P12, P15, and P18 can be set to the line F13 which forms the extension line F11 and the second angle, for example, 45 degrees.
- the controller 110 may arbitrarily set a route point to be included in the movement route among the plurality of route candidates.
- the controller may set a waypoint in consideration of the size of the mobile robot.
- the controller 110 may set any one of the plurality of waypoint candidates as waypoints according to the position of the next waypoint or the target point.
- the stopover candidate may be set as a waypoint based on the direction in which the target point is located according to the position of the target point P4 based on the driving direction at the fourth feature point.
- controller 110 may set one of the waypoint candidates as waypoints based on the number of accident occurrences or the number of driving successes according to each waypoint candidate according to the pre-stored driving records for the plurality of waypoint candidates.
- the controller 110 may determine the feature point as a stopover candidate and set the stoppoint.
- the controller 110 sets one of the plurality of waypoint candidates as waypoints, and when a waypoint is set for each feature point, sets the movement route connecting the waypoints to control the driving unit.
- the controller may set a movement route with respect to a starting point, a waypoint, and a target point using location information such as coordinates and a waypoint.
- FIG. 6 is a view referred to for explaining the change in the movement path of the mobile robot according to an embodiment of the present invention.
- the mobile robot 100 sets a feature point with coordinates as a waypoint, or moves along a boundary to correct the position error and change the movement path. Can be.
- the controller 110 changes the driving direction toward the adjacent feature point or the boundary line, and when the boundary line is detected, the controller 110 may correct the position error based on the actual distance.
- the controller 110 may correct the position error by traveling a predetermined distance along the boundary line.
- controller 110 may reconfigure the feature point when the obstacle is repeatedly detected.
- the mobile robot 100 includes a fifth waypoint P5 and a sixth waypoint P6 to move to a third movement path L3 that moves to the target point P7. Can be set to drive.
- the mobile robot may collide with the wall at the first accident point PP1 or invade the boundary line while driving in the movement route connecting the fifth waypoint P5 and the sixth waypoint P6. . In narrow areas where there is a reduced number of movable areas, collisions or intrusions may occur.
- the controller 110 may set an escape mode for accidental accidents.
- the controller 110 changes the moving path according to any one of the escape mode for driving along the boundary line and the escape mode for driving by setting a new route point to escape from the accident situation. Do it.
- controller 110 may apply both escape modes to allow the mobile robot to escape from the accident situation.
- the controller may correct the position error by setting the escape mode.
- the mobile robot 100 may move the path to the fourth moving path L4 traveling along a predetermined distance boundary line by an escape mode that travels along the boundary line. You can change it and drive.
- the mobile robot 100 moves from the first accident point PP1 to the adjacent boundary line and travels a predetermined distance along the boundary line. When the position is confirmed, the mobile robot 100 changes the driving direction in the direction in which the target point is located and runs along the boundary line. You can move to the target point.
- the controller 110 ignores the preset third movement path and controls the driving unit to move along the boundary line in the first direction.
- the controller 110 corrects the position on the basis of the boundary line, and determines the current position to change the driving direction when it is determined to move away from the target point P7 and approach the starting point.
- the driving unit may be controlled to move along the boundary line.
- the controller may move along the boundary line while maintaining the first direction when the first direction is a direction approaching the target point.
- the controller 110 When the controller 110 reaches a position where the linear driving to the target point P7 is possible while traveling along the boundary line, the controller 110 performs a linear driving to the target point P7.
- the mobile robot travels along the boundary line after the accident point, and travels straight from the boundary line to the target point P7 at the point where the linear movement is possible to the target point P7.
- the mobile robot 100 travels in the fifth movement path L5 including the new waypoint by an escape mode in which a new waypoint is set and travels. can do.
- the controller 110 may change the movement path by setting a new waypoint P8, which is a new waypoint, for the first accident point PP1 where the accident occurs.
- the controller 110 sets the eighth waypoint P8 as the mirror waypoint of the fifth waypoint P5 to allow the mobile robot to escape from the accident.
- the eighth waypoint P8 may be one of a plurality of other waypoint candidates set when the fifth waypoint P5 is designated.
- the controller 110 may set a new waypoint, an eighth waypoint, based on the fifth waypoint P5 or the first accident point P11.
- the controller 110 may change a path to a new fifth movement route L5 connecting the eighth waypoint and the sixth waypoint.
- an accident such as a collision or borderline violation may occur at the second accident point PP2 due to a position error.
- the controller 110 may change the movement route by setting a new waypoint and a ninth waypoint P9 from the second accident point PP2.
- the mobile robot 100 may reach the target point by traveling from the ninth waypoint to the target point P7.
- the controller searches for and sets a new moving route by traveling along a boundary line or setting a new waypoint for an accident, a position error, etc. that occur while driving, so as to escape from an accident situation and reach a target point in a short time.
- FIG 7 and 8 are views for explaining the movement path setting according to the target point of the mobile robot according to an embodiment of the present invention.
- the mobile robot 100 may move a point adjacent to the target point as a new target point P24.
- the controller 110 may calculate the position of the target point P25 to determine that the point is outside the area.
- the controller 110 may set the 24th waypoint P24 on a boundary line adjacent to the target point P25 or in an inner region of the boundary line.
- the 24th waypoint P24 may be set as a new target point.
- the mobile robot 100 may reach the new target point 24, the 24th waypoint P24, from the starting point P21 through the eleventh movement path L11 passing through the 22nd and 23rd waypoints P22 and P23. have. In some cases, the mobile robot 100 may travel through the twelfth moving path L12 moving in a straight line from the 22nd waypoint P22 to the 24th waypoint P24, that is, a new target point.
- the controller 110 may set a plurality of waypoint candidates and set a new target point from the plurality of candidates.
- the controller 110 may set a point adjacent to the target point P25 within a predetermined distance range as a via candidate.
- a point adjacent to the target point P25 within a predetermined distance range For example, the 27th point P27 of the first distance D1, the 24th point P24 of the second distance D2, and the 26th point P26 of the third distance D3 are set as transit candidates.
- the controller 110 may set any one of a plurality of stopover candidates corresponding to the distance from the target point, the position of the surrounding obstacle, and the distance from the previous waypoint. In addition, the controller 110 may set a waypoint in consideration of the number of accidents occurring at each point.
- control point 110 connects the target point P25 and the twenty-third waypoint P23 with a straight line L13, a plurality of points positioned on the straight line are provided.
- the twenty eighth point adjacent to the boundary line may be set as a new target point.
- the controller selects a new target point of the 29th point P29 adjacent to the boundary line and the target point among a plurality of points positioned on the straight line. Can be set.
- the controller 110 sets a new target point in the area, sets the movement path, controls the driving unit, and moves to the new target point.
- FIG. 9 is a flowchart illustrating a control method of a mobile robot moving using a waypoint according to an embodiment of the present invention.
- the mobile robot 100 moves when it is necessary to move, for example, when moving from the current position to the charging station, when moving to a specific position, or when mowing starts from a specific position.
- the movement path can be set based on the desired point.
- the controller 110 sets the current position as the starting point, sets the point to be moved as the target point, and checks the position (S310).
- the controller 110 may check the movement position of the actual area through the coordinates of the starting point and the target point by using the previously stored map.
- the controller 110 determines whether linear movement is possible from the starting point to the target point based on the obstacle information and the shape of the area from the map (S320).
- the controller 110 When the controller 110 can move in a straight path, the controller 110 sets the driving direction to the target point and starts the movement by controlling the driving unit.
- the controller 110 may set the movement path for the movement to the target point.
- the controller 110 may set the movement path to move from the boundary line to the target point adjacent to the target point while moving along the boundary line from the starting point to the target point.
- controller 110 may set at least one waypoint between the starting point and the target point (S330), and set a movement route connecting the starting point, the waypoint and the target point (S340).
- the controller 110 may set a waypoint, and set a movement route so as to linearly travel between the points, thereby shortening the driving distance to the target point.
- a movement route so as to linearly travel between the points, thereby shortening the driving distance to the target point.
- the driving distance becomes longer, it may take a long time to move to the target point.
- the mobile robot 100 starts driving in accordance with the movement route connecting the starting point, the waypoint, and the target point.
- the controller 110 determines whether the movement is impossible (S360).
- the controller 110 changes the movement route (S370).
- the controller 110 may determine that movement is not possible even when the current position cannot be confirmed due to a position error, as well as movement by an obstacle or a boundary line. The controller 110 may determine that there is an error in the current position due to slipping while driving or a position change due to a collision.
- the controller 110 corrects the position error based on the boundary line, and sets a new movement path from the current position to the target point.
- the controller 110 may change the movement path by traveling along the boundary line or setting a new waypoint.
- the controller 110 controls the driving unit to control the vehicle to travel according to a new movement route. Accordingly, the mobile robot 100 moves to the target point based on the changed new movement path (S380).
- the mobile robot 100 ends the movement by the movement path (S400).
- the mobile robot 100 waits for the next command to be input or starts a preset designated operation.
- the mobile robot 100 may start the lawn mower while moving the setting area according to a predetermined driving pattern from the target point.
- the mobile robot 100 may start charging by docking the charging stand.
- FIG. 10 is a flowchart illustrating a method for setting a movement path of a mobile robot according to an embodiment of the present invention.
- the mobile robot 100 checks the positions of the starting point and the target point (S410) and moves to the target point according to the set movement path.
- the controller 110 determines whether the target point is located at a point outside the area, out of the boundary line (S420).
- the controller 110 determines whether straight driving is possible from the starting point to the target point (S430).
- a moving path connecting the starting point and the target point in a straight line is set (S480), and the driving unit is controlled.
- the controller 110 sets a plurality of way through candidates in the area of the boundary line based on the boundary line adjacent to the target point (S460).
- the waypoint candidate can set a plurality of waypoint candidates located within a predetermined distance from the target point in an area of the boundary line adjacent to the target point.
- a point adjacent to the boundary line can be set as the waypoint candidate.
- the twenty-eighth point on the line connecting the twenty-third waypoint and the target point and the twenty-ninth point on the line connecting the twenty-fourth waypoint and the target point may be set as waypoint candidates.
- the controller 110 may set any one point as a waypoint based on information about a distance to a target point, a distance to another waypoint, an accident occurrence frequency of each point, and obstacles around the plurality of waypoint candidates. (S470). In some cases, the controller 110 may set a waypoint according to a set condition without setting a separate waypoint candidate.
- controller 110 sets the set route point as a new target point to set the movement route.
- the controller 110 determines whether the linear movement between the starting point and the new target point is possible (S430), and when the linear movement is not possible, sets the at least one waypoint between the starting point and the new target point (S450).
- the controller 110 sets at least one waypoint to avoid obstacles without invading the boundary line according to the shape of the region and the position of the target point.
- the controller 110 sets a plurality of waypoint candidates based on feature points set at break points, corners, etc. according to the shape of the area, and then selects the position of the target point, obstacles around them, the number of accidents occurring at each waypoint, and the number of successful driving.
- One waypoint candidate can be set as a waypoint based on at least one.
- the controller 110 sets a movement route connecting the starting point, the waypoint and the target point (S480).
- the mobile robot moves to the target point (S490).
- FIG. 11 is a flowchart illustrating a method of changing a movement path of a mobile robot according to an embodiment of the present invention.
- the mobile robot 100 moves to a target point according to the set movement path.
- the controller 110 sets the movement route for moving to the target point
- the controller 110 sets the movement route so as not to invade the boundary line or collide with the obstacle.
- slip may occur according to the state of the floor, or an error may occur in the position of the mobile robot depending on the material of the floor.
- the mobile robot 100 avoids driving while sensing an obstacle in a driving direction while driving, and there may be a case in which there is a moving obstacle or a collision with an undetected blind spot.
- the controller approaches the boundary line, invades the boundary line, leaves the area, or collides with an obstacle (S520). It can be judged that it occurred.
- the controller may determine whether the boundary line is reached by a signal such as a current or a magnetic field induced from the boundary line.
- the controller controls the driving unit such that the mobile robot does not leave the boundary and does not leave the area.
- the controller may set the escape mode so as to escape the accident while correcting the position error (S530).
- the controller 110 compares the determined position value with the position of the boundary line and corrects the position error of the mobile robot.
- the controller may correct the position based on the position of the obstacle stored in the map when an accident occurs at a position far away from the boundary line.
- the controller 110 determines whether driving to the target point is possible (S540), and when the driving to the target point is possible (S590).
- the controller 110 determines whether to travel along the boundary line.
- the controller 110 controls the driving unit to move in one direction or the first direction based on the boundary line.
- the controller 110 may re-determine the current position while driving, determine whether the controller is close to the target point, and then change the driving direction to the second direction.
- the second direction may be opposite to the first direction.
- the controller 110 moves out of the boundary line to the target point (S590).
- the controller 110 sets a new waypoint based on the corrected current position (S570), and changes the movement path to a path connecting the new waypoint (S580).
- the new waypoint can be set in consideration of the distance between the current position and the target point and the shape of the obstacle therebetween.
- the control unit may set a new waypoint as one of the other waypoint candidates for the initial waypoint based on the location where the accident occurred.
- the controller 110 may set another waypoint candidate among the plurality of waypoint candidates set from the feature points as a new waypoint.
- controller 110 may change the movement route by setting a new route point when an accident occurs again while driving in the new movement route.
- the mobile robot moves to the target point along the changed movement path (S590).
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- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
Description
Claims (32)
- 경계선에 의해 형성되는 영역을 주행하는 본체;상기 본체를 이동시키는 주행부;장애물을 감지하는 장애물 감지부; 및감지되는 장애물을 회피하며, 상기 본체가 상기 경계선을 침범하여 상기 영역 외로 이탈하지 않도록 상기 주행부를 제어하며,상기 본체가 이동하는 경우, 이동할 목표점과 출발점 사이에, 상기 경계선 또는 상기 장애물을 회피하기 위한, 적어도 하나의 경유점을 설정하고, 상기 출발점, 상기 경유점, 상기 목표점을 직선으로 연결하는 이동경로를 설정하는 제어부;를 포함하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 상기 경계선으로 따라 이동하며 생성되며, 상기 경계선 및 상기 장애물의 정보가 포함된 지도에 기초하여, 상기 영역 내에서의 위치를 판단하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 상기 출발점으로부터 상기 목표점까지 직선경로로 이동할 수 없는 경우, 상기 영역의 형태 및 상기 출발점과 상기 목표점 사이에 위치하는 장애물에 대응하여 적어도 하나의 상기 경유점을 설정하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 상기 영역의 형태, 상기 장애물의 위치 및 형태에 기초하여, 특징점을 추출하고, 상기 특징점을 기준으로 적어도 하나의 상기 경유점을 설정하는 이동 로봇.
- 제 4 항에 있어서,상기 제어부는 상기 영역의 형태 및 상기 장애물에 의해 형성되는 돌출영역, 상기 장애물 또는 상기 경계선에 의해 형성되는 상기 영역의 꺽인지점으로부터 상기 특징점을 추출하는 이동 로봇.
- 제 4 항에 있어서,상기 제어부는 상기 특징점을 기준으로 복수의 경유후보를 설정하고, 상기 특징점을 포함한, 상기 복수의 경유후보 중 어느 하나를 상기 경유점으로 설정하는 이동 로봇.
- 제 6 항에 있어서,상기 제어부는 상기 특징점으로부터의 일정거리에 떨어진 복수의 지점을 상기 복수의 경유후보로 설정하는 이동 로봇.
- 제 6 항에 있어서,상기 제어부는 상기 특징점이 위치하는 상기 경계선을 기준으로 일정 각도를 형성하는 선 상에 위치하는 복수의 지점을 상기 복수의 경유후보로 설정하는 이동 로봇.
- 제 6 항에 있어서,상기 제어부는 상기 특징점이 위치하는 상기 경계선을 기준으로 일정 각도 단위로 형성되는 복수의 선상에 위치하는 복수의 지점을 상기 복수의 경유후보로 설정하는 이동 로봇.
- 제 6 항에 있어서,상기 제어부는 상기 복수의 경유후보 중, 상기 목표점과의 거리, 다른 경유점과의 거리, 사고발생횟수 및 주변의 장애물에 대한 정보를 바탕으로 어느 하나를 상기 경유점으로 설정하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 상기 목표점이 상기 영역 외의 지점인 경우, 상기 목표점으로부터 인접한 상기 경계선의 어느 한 지점을 새로운 목표점으로 설정하는 이동 로봇.
- 제 11 항에 있어서,상기 제어부는 상기 목표점과의 거리에 따라 상기 경계선 상에 복수의 지점을 설정하고, 상기 복수의 지점 중 어느 하나를 상기 새로운 목표점으로 설정하는 이동 로봇.
- 제 11 항에 있어서,상기 제어부는 상기 목표점과 다른 경유점을 연결하는 직선경로 상에 위치하는 복수의 지점 중 상기 경계선에 접하는 지점을 상기 새로운 목표점으로 설정하는 이동 로봇.
- 제 11 항에 있어서,상기 제어부는 상기 목표점과의 거리, 상기 경계선의 위치, 주변의 장애물에 대한 정보, 다른 경유점과의 거리에 대응하여 어느 하나의 지점을 상기 새로운 목표점으로 설정하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 주행 중 미끄러짐, 휠의 공회전, 충돌에 위한 이동 중 적어도 하나에 의해 위치오차가 발생하는 경우, 상기 경계선 또는 상기 영역 내에 설정되는 특징점으로 이동하여 위치를 보정하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 현재위치로부터 상기 영역 내의 어느 한 지점으로 이동하는 경우, 상기 영역 내의 어느 한 지점으로부터 충전대로 이동하는 경우, 이동하고자 하는 지점을 상기 목표점으로 설정하여 상기 이동경로를 설정하는 이동 로봇.
- 제 1 항에 있어서,상기 제어부는 주행 중, 위치 오차로 인하여 상기 경계선을 침범하거나 또는 상기 장애물과 충돌하는 경우, 위치오차를 보정하면서 사고상황을 벗어나도록 상기 이동경로를 변경하는 이동 로봇.
- 제 17 항에 있어서,상기 제어부는 사고발생 시, 인접한 경계선으로 이동하여, 상기 경계선으로 따라 주행하면서 상기 목표점으로 이동하도록 상기 이동경로를 변경하여 탈출모드를 실시하는 이동 로봇.
- 제 17 항에 있어서,상기 제어부는 사고발생 지점을 기준으로 새로운 경유점을 설정하고 상기 새로운 경유점을 포함하도록 상기 이동경로를 변경하여 탈출모드를 실시하는 이동 로봇.
- 제 17 항에 있어서,상기 제어부는 사고발생 지점에 대한 사고발생횟수를 누적하여 저장하는 이동 로봇.
- 제 1 항에 있어서,상기 경계선은 상기 영역을 형성하는 가상의 선, 바닥에 매설되어, 전류를 유도하거나 또는 자기장을 발생하도록 설치되는 와이어, 및 신호송출장치로부터 송출되는 신호에 의해 형성되는 경계 중 적어도 하나인 것을 특징으로 하는 이동 로봇.
- 경계선에 의해 형성되는 영역 내에서, 이동할 목표점의 위치를 확인하는 단계;출발점과 상기 목표점 사이에, 상기 경계선 및 장애물을 회피하기 위한 적어도 하나의 경유점을 설정하는 단계;상기 출발점, 상기 경유점, 상기 목표점을 직선으로 연결하는 이동경로를 설정하는 단계; 및상기 이동경로에 따라 상기 목표점으로 이동하는 단계;를 포함하는 이동 로봇의 제어방법.
- 제 22 항에 있어서,상기 경유점을 설정하는 단계는, 상기 출발점으로부터 상기 목표점 사이에 상기 경계선 및 상기 장애물의 위치와 형태에 대응하여 지정되는 복수의 경유후보 중 어느 하나로 상기 경유점을 설정하는 이동 로봇의 제어방법.
- 제 22 항에 있어서,상기 경유점을 설정하는 단계는,상기 영역의 형태, 상기 장애물의 위치 및 형태에 기초하여, 특징점을 추출하는 단계;상기 특징점을 기준으로 일정 거리 또는 일정 각도를 형성하는 지점에 복수의 경유후보를 설정하는 단계; 및상기 특징점을 포함하는 상기 복수의 경유후보 중 어느 하나를 상기 경유점으로 설정하는 단계를 더 포함하는 이동 로봇의 제어방법.
- 제 24 항에 있어서,상기 특징점을 추출하는 단계는, 상기 영역의 형태 및 상기 장애물에 의해 형성되는 돌출영역, 상기 장애물에 의해 형성되는 상기 영역의 또는 상기 경계선의 꺽인지점으로부터 상기 특징점을 추출하는 더 포함하는 이동 로봇의 제어방법.
- 제 24 항에 있어서,상기 경유점을 설정하는 단계는, 상기 복수의 경유후보 중, 상기 목표점과의 거리, 다른 경유점과의 거리, 사고발생횟수 및 주변의 장애물에 대한 정보를 바탕으로 어느 하나를 설정하는 이동 로봇의 제어방법.
- 제 22 항에 있어서,상기 목표점을 위치를 확인한 후, 상기 목표점이 상기 영역 외의 지점인 경우, 상기 목표점으로부터 인접한 상기 경계선의 어느 한 지점을 새로운 목표점으로 설정하는 단계를 더 포함하는 이동 로봇의 제어방법.
- 제 27 항에 있어서,상기 새로운 목표점을 설정하는 단계는, 상기 목표점과의 거리에 따라 상기 경계선 상의 복수의 지점 중 어느 하나, 또는 상기 목표점과 다른 경유점을 연결하는 직선경로 상에 위치하는 복수의 지점 중 상기 경계선에 접하는 지점을 상기 새로운 목표점으로 설정하는 이동 로봇의 제어방법.
- 제 22 항에 있어서,이동 중, 미끄러짐, 휠의 공회전, 충돌에 위한 이동 중 적어도 하나에 의해 위치오차가 발생하는 단계; 및위치오차 발생 시, 상기 경계선 또는 상기 영역에 설정되는 특징점으로 이동하여 상기 위치오차를 보정하는 단계를 더 포함하는 이동 로봇의 제어방법.
- 제 22 항에 있어서,상기 이동경로에 따라 주행 중, 상기 경계선에 도달하거나 또는 상기 장애물에 도달한 경우 사고상황으로 판단하여 이동경로를 변경하는 단계;를 더 포함하는 이동 로봇의 제어방법.
- 제 30 항에 있어서,상기 사고상황에 대응하여, 인접한 경계선으로 이동하여, 상기 경계선으로 따라 주행하면서 상기 목표점으로 이동하도록 상기 이동경로를 변경하여 탈출모드를 실시하는 단계를 더 포함하는 이동 로봇의 제어방법.
- 제 30 항에 있어서,상기 사고상황에 대응하여, 사고발생 지점을 기준으로 새로운 경유점을 설정하고 상기 새로운 경유점을 포함하도록 상기 이동경로를 변경하여 탈출모드를 실시하는 단계를 더 포함하는 이동 로봇의 제어방법.
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- 2019-04-05 EP EP19781053.4A patent/EP3782774B1/en active Active
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CN111208817A (zh) * | 2020-01-02 | 2020-05-29 | 惠州拓邦电气技术有限公司 | 窄道通行方法、装置、移动装置以及计算机可读存介质 |
CN111208817B (zh) * | 2020-01-02 | 2024-03-15 | 惠州拓邦电气技术有限公司 | 窄道通行方法、装置、移动装置以及计算机可读存介质 |
CN111136636A (zh) * | 2020-01-09 | 2020-05-12 | 上海丛远机械有限公司 | 行走机器人、控制行走机器人的方法和行走机器人系统 |
CN111136636B (zh) * | 2020-01-09 | 2023-07-28 | 上海山科机器人有限公司 | 行走机器人、控制行走机器人的方法和行走机器人系统 |
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CN114115286A (zh) * | 2021-12-06 | 2022-03-01 | 国网山东省电力公司汶上县供电公司 | 变电站机器人巡检系统与方法 |
CN114115286B (zh) * | 2021-12-06 | 2024-03-19 | 国网山东省电力公司汶上县供电公司 | 变电站机器人巡检系统与方法 |
CN114518754A (zh) * | 2022-01-28 | 2022-05-20 | 西北工业大学 | 一种多智能体追逃问题建模与围捕策略生成方法 |
CN114518754B (zh) * | 2022-01-28 | 2024-04-23 | 西北工业大学 | 一种多智能体追逃问题建模与围捕策略生成方法 |
Also Published As
Publication number | Publication date |
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EP3782774A4 (en) | 2022-08-10 |
EP3782774A1 (en) | 2021-02-24 |
KR20210060402A (ko) | 2021-05-26 |
KR20190123673A (ko) | 2019-11-01 |
AU2019248256A1 (en) | 2020-11-26 |
KR102499553B1 (ko) | 2023-02-13 |
EP3782774B1 (en) | 2023-11-08 |
AU2019248256B2 (en) | 2022-08-11 |
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