Patent ID: 9146560
Filing Date: 2015-09-29
Classification: A47L,G05D

Abstract:
1. A cover structure configured to limit infrared transmission between a navigation beacon having at least two infrared emitters and a robot having at least two receivers, the structure comprising: a top portion defining an opening; and a wall portion having an upper periphery, a lower periphery, and a height extending between the upper and lower peripheries, the upper periphery of the wall portion adjoining a periphery of the top portion, the top and wall portions together defining a volume sized to receive at least a portion of a navigation beacon having a directional infrared emitter, the wall portion configured to block an infrared signal transmitted by the directional infrared emitter on the portion of the navigation beacon positionable within the volume; wherein the opening in the top portion is configured to fit around a base of an omni-directional infrared emitter of the navigation beacon, the omni-directional infrared emitter protruding from the opening such that the cover structure fails to impede transmission of a proximity signal field by the omni-directional infrared emitter; and wherein an interior of the wall portion comprises a plurality of ribs extending vertically along a length of the wall portion with respect to a surface supporting the cover structure and configured to align the wall portion relative to the omni-directional infrared emitter.