CLEANING METHOD FOR A ROBOTIC CLEANING DEVICE
First Claim
1. A method of operating a robotic cleaning device over a surface to be cleaned, the method being performed by the robotic cleaning device, the method comprising:
- following a boundary of a first object while registering path markers at intervals on the surface, the path markers comprising positional information;
tracing previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and
switching from tracing the previously registered path markers to following an edge of a second object upon detection of the second object.
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Abstract
A method of operating a robotic cleaning device over a surface to be cleaned, the method being performed by the robotic cleaning device. The method includes: following a boundary of a first object while registering path markers including positional information at intervals on the surface; tracing previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switching from tracing the previously registered path markers to following an edge of a second object upon detection of the second object.
46 Citations
16 Claims
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1. A method of operating a robotic cleaning device over a surface to be cleaned, the method being performed by the robotic cleaning device, the method comprising:
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following a boundary of a first object while registering path markers at intervals on the surface, the path markers comprising positional information; tracing previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switching from tracing the previously registered path markers to following an edge of a second object upon detection of the second object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A robotic cleaning device comprising:
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a main body; a propulsion system arranged to move the robotic cleaning device; a contact detecting portion connected to the main body and arranged to detect if the robotic cleaning device is in contact with an object; a dead reckoning sensor operatively connected to the propulsion system; and a processing unit arranged to control the propulsion system; wherein the processing unit is connected to the dead reckoning sensor and configured to; follow a boundary of a first object while registering path markers at intervals on the surface, the path markers comprising positional information; trace previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switch from tracing the previously registered path markers to following an edge of a second object upon detection of the second object.
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14. A computer program comprising computer-executable instructions stored in a non-transitory medium for causing a robotic cleaning device to:
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follow a boundary of a first object while registering path markers at intervals on the surface, the path markers comprising positional information; trace previously registered path markers at an offset upon encountering one or more of the previously registered path markers; and switch from tracing the previously registered path markers to following an edge of a second object upon detection of the second object. - View Dependent Claims (16)
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15. (canceled)
Specification