Weeding robot and method
First Claim
1. A weeding robot comprising:
- a chassis;
a drive subsystem, for maneuvering the chassis, including a set of motor-driven wheels, at least one wheel of the set having a ground-contacting tread with a set of cleats;
a rechargeable battery configured to power the drive subsystem;
a solar panel configured to charge the battery;
an obstacle sensor subsystem on the chassis configured to detect objects including plants having a height above a threshold;
a controller subsystem, configured for autonomous operation of the robot for weeding, responsive to the obstacle sensor subsystem and configured to;
de-energize the drive subsystem until charge of the battery has been restored to a predetermined level by the solar panel,control the drive subsystem to maneuver the chassis about a defined space, andupon detection of an obstacle via an output of the obstacle sensor subsystem, control the drive subsystem to maneuver the chassis away from the obstacle, under rules configured to produce a high likelihood of operation of the robot over the entire defined space.
3 Assignments
0 Petitions
Accused Products
Abstract
An autonomous garden weeding robot includes a chassis, a motorized cutting subsystem, and a drive subsystem for maneuvering the chassis. A weed sensor subsystem is located on the chassis at a first elevation from the ground and a crop/obstacle sensor subsystem is located on the chassis at a second, higher elevation from the ground. The drive subsystem is controlled to maneuver the chassis about a garden. Upon detection of a weed, the motorized cutting subsystem is energized to cut the weed. The motorized cutting subsystem is de-energized after the chassis has moved a predetermined distance and/or after a predetermined period of time. Upon detection of a crop or obstacle, the drive subsystem is controlled to maneuver the chassis away from the obstacle.
18 Citations
11 Claims
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1. A weeding robot comprising:
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a chassis; a drive subsystem, for maneuvering the chassis, including a set of motor-driven wheels, at least one wheel of the set having a ground-contacting tread with a set of cleats; a rechargeable battery configured to power the drive subsystem; a solar panel configured to charge the battery; an obstacle sensor subsystem on the chassis configured to detect objects including plants having a height above a threshold; a controller subsystem, configured for autonomous operation of the robot for weeding, responsive to the obstacle sensor subsystem and configured to; de-energize the drive subsystem until charge of the battery has been restored to a predetermined level by the solar panel, control the drive subsystem to maneuver the chassis about a defined space, and upon detection of an obstacle via an output of the obstacle sensor subsystem, control the drive subsystem to maneuver the chassis away from the obstacle, under rules configured to produce a high likelihood of operation of the robot over the entire defined space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A weeding robot comprising:
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a chassis; a drive subsystem, for maneuvering the chassis; a rechargeable battery configured to power the drive subsystem; a solar panel configured to charge the battery; an obstacle sensor subsystem on the chassis configured to detect objects including plants having a height above a threshold; a controller subsystem configured for autonomous operation of the robot for weeding, responsive to the obstacle sensor subsystem and configured to; de-energize the drive subsystem until charge of the battery has been restored to a predetermined level by the solar panel; control the drive subsystem to maneuver the chassis about a defined space, and upon detection of an obstacle via an output of the obstacle sensor subsystem, control the drive subsystem to maneuver the chassis away from the obstacle, under rules configured to produce a high likelihood of operation of the robot over the entire defined space.
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11. A weeding robot comprising:
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a chassis; a drive subsystem, for maneuvering the chassis; an obstacle sensor subsystem on the chassis configured to detect objects including plants having a height above a threshold; a controller subsystem configured for autonomous operation of the robot for weeding, responsive to the obstacle sensor subsystem and configured to; control the drive subsystem to maneuver the chassis about a defined space, and upon detection of an obstacle via an output of the obstacle sensor subsystem, control the drive subsystem to maneuver the chassis away from the obstacle, under rules configured to produce a high likelihood of operation of the robot over the entire defined space.
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Specification