Robot navigation
First Claim
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1. A directed beam emitter system for robot navigation, comprising:
- at least one light beam emitter that emits a modulated directed light beam of a first modulation; and
at least one omnidirectional diffuse light region emitter that emits a modulated diffuse light region of a second modulation,the modulated directed light beam and the modulated diffuse light region overlapping in a plane parallel to ground level such that a light beam receiver on a robot may detect either one or both of the modulated directed light beam and the modulated diffuse light region; and
wherein the light beam emitter is responsive to a control system used to control one or more light beam emitters.
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Abstract
A directed beam emitter system for robot navigation in which a light beam emitter emits a modulated directed light beam of a first modulation and an omnidirectional diffuse light region emitter emits a modulated diffuse light region of a second modulation. The modulated directed light beam and the modulated diffuse light region overlap in a plane parallel to ground level such that a light beam receiver on a robot may detect either one or both of the modulated directed light beam and the modulated diffuse light region. The light beam emitter is responsive to a control system used to control one or more light beam emitters.
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Citations
17 Claims
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1. A directed beam emitter system for robot navigation, comprising:
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at least one light beam emitter that emits a modulated directed light beam of a first modulation; and at least one omnidirectional diffuse light region emitter that emits a modulated diffuse light region of a second modulation, the modulated directed light beam and the modulated diffuse light region overlapping in a plane parallel to ground level such that a light beam receiver on a robot may detect either one or both of the modulated directed light beam and the modulated diffuse light region; and wherein the light beam emitter is responsive to a control system used to control one or more light beam emitters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A retroreflector navigation system for robot navigation, comprising:
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a robot having a light beam receiver oriented in a manner to have an omnidirectional field of view; at least one omnidirectional diffuse light region emitter that emits a modulated diffuse light region, the omnidirectional modulated diffuse light region positioned in a plane parallel to ground level such that a light beam receiver on the robot is in the same plane as the omnidirectional modulated diffuse light region; and a series of retroreflectors for reflecting modulated directed light beams to define a series of work areas. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification