Tethered robot positioning
First Claim
1. A mobile machine, comprising:
- a localization detection device;
a tether line that is extendable and attached at a distal end to a second machine;
a line extension monitoring device configured to monitor a length of extension of the tether line; and
a controller coupled to the localization detection device and the line extension monitoring device and configured to control automatically movement of the mobile machine along a defined path and to control movement of the second machine, wherein the movement of the second machine is dependent upon a position of the mobile machine but independent of the defined path of the mobile machine, wherein the defined path is defined by a wire carrying a signal and wherein the localization detection device includes a device for detecting the signal in the wire.
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Accused Products
Abstract
A system and method for positioning a mobile machine, such as a robot, using a tether line connected between two mobile machines. A first mobile machine, such as a boundary vehicle, is controlled to move along a path, such as a boundary defining an area. The first machine employs a localization device to determine and maintain its position on the path. A tether line is connected between the boundary vehicle and a second mobile machine, such as a roving vehicle. The first machine determines the position of the second machine relative to the first machine from a length of extension and angle of the tether line. The first machine controls movement of the second machine to perform a task or mission, such as a task performed in the area defined by the boundary.
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Citations
35 Claims
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1. A mobile machine, comprising:
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a localization detection device; a tether line that is extendable and attached at a distal end to a second machine; a line extension monitoring device configured to monitor a length of extension of the tether line; and a controller coupled to the localization detection device and the line extension monitoring device and configured to control automatically movement of the mobile machine along a defined path and to control movement of the second machine, wherein the movement of the second machine is dependent upon a position of the mobile machine but independent of the defined path of the mobile machine, wherein the defined path is defined by a wire carrying a signal and wherein the localization detection device includes a device for detecting the signal in the wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile machine, comprising:
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a localization detection device; a tether line that is extendable; a line extension monitoring device configured to monitor a length of extension of the tether line; a controller coupled to the localization detection device and the line extension monitoring device and configured to control automatically movement of the mobile machine along a defined path, to determine a relative position of a second machine attached to a distal end of the tether line from the monitored length of extension of the tether line, and to control movement of the second machine, wherein the movement of the second machine is dependent upon a position of the mobile machine but independent of the defined path of the mobile machine; a line angle monitoring device configured to monitor an angle of the tether line; and wherein the controller is coupled to the line angle monitoring device and is configured to determine a relative position of the second machine from the monitored length of extension and the monitored angle of the tether line. - View Dependent Claims (14)
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15. A method of controlling a mobile machine, comprising:
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detecting by a first mobile machine a position of the first mobile machine along a path, wherein the detecting step includes detecting a signal in a wire defining the path; automatically moving the first mobile machine along the path; determining by the first mobile machine a position of a second mobile machine relative to the first mobile machine; and controlling automatically movement of the second mobile machine by the first mobile machine, wherein the controlled movement of the second mobile machine is dependent upon the position of the first mobile machine along the path but independent of the movement of the first mobile machine along the path. - View Dependent Claims (16, 17)
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18. A method of controlling a mobile machine, comprising:
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detecting by a first mobile machine a position of the first mobile machine along a path; automatically moving the first mobile machine along the path; determining by the first mobile machine a position of a second mobile machine relative to the first mobile machine; and controlling automatically movement of the second mobile machine by the first mobile machine, wherein the controlled movement of the second mobile machine is dependent upon the position of the first mobile machine along the path but independent of the movement of the first mobile machine along the path, wherein the path is a boundary defining an area, and wherein the controlling step includes controlling movement of the second machine along the path to create a map of the area. - View Dependent Claims (19)
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20. A system for positioning a mobile machine, comprising:
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a first mobile machine; a localization detection device on the first mobile machine configured to detect a position of the first mobile machine along a path; a tether line extendable from the first mobile machine and under tension; a line extension monitoring device configured to monitor a length of extension of the tether line; a line angle monitoring device configured to monitor an angle of the tether line; a second mobile machine attached at a distal end of the tether line; a first controller connected to the localization detection device, to the line extension monitoring device, and to the line angle monitoring device and configured to control automatically movement of the first mobile machine along a defined path, to determine a relative position of the second mobile machine from the monitored length of extension and monitored angle of the tether line, and to generate movement control signals to control movement of the second mobile machine; a transmitter connected to the first controller and configured to transmit the movement control signals to the second mobile machine; a receiver configured to receive the movement control signals at the second mobile machine; and a second controller connected to the receiver and configured to control a position of the second mobile machine in response to the movement control signals received at the second mobile machine. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A mobile machine, comprising:
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a receiver configured to receive control signals from a master mobile machine connected to the mobile machine by a tether line, wherein the control signals are adapted to control movement of the mobile machine to a position determined from an extension length of the tether line and an angle of the tether line; and a controller coupled to the receiver and configured to control movement of the mobile machine in response to the control signals. - View Dependent Claims (31, 32)
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33. A method of controlling a mobile machine, comprising:
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receiving first control signals from a master mobile machine connected by a tether line to the mobile machine, wherein the first control signals are adapted to control movement of the mobile machine through a first portion of a defined area relative to a first location of the master mobile machine; receiving second control signals from the master mobile machine, wherein the second control signals are adapted to control movement of the mobile machine through a second portion of the defined area relative to a second location of the master mobile machine, wherein the controlled movement of the mobile machine is dependent upon the location of the master mobile machine but independent of a path taken by the master mobile machine between the first location and the second location; and wherein the defined area is defined by a path of movement of the master mobile machine including the first location and the second location. - View Dependent Claims (34, 35)
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Specification