OUT OF PLANE SENSOR OR EMITTER FOR COMMISSIONING LIGHTING DEVICES
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United States of America Patent
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app pub date -
Aug 18, 2016
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Aug 18, 2016
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Abstract
Determining respective locations of lighting devices in a service area includes a sensing device that receives light signals emitted by a number of lighting devices that are configured in a common plane. The sensing device is located outside the common plane, e.g. below the plane of light outputs of fixture mounted in or below a ceiling. Respective distances between each lighting device and the sensing device are calculated based on the received light signals. The locations of the plurality of lighting devices relative to the sensing device are calculated based on the calculated distances using trilateration, triangulation or parallax. In other systems, each lighting device includes a sensing device and the light signals are emitted by a pendant or wall-mounted sensor located outside the common plane. In another system, the locations are determined by sensing devices in the lighting devices based on light reflected from objects in the service area.
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