SYSTEM FOR AUTO-COMMISSIONING OF LUMINAIRES AND ASSET TRACKING
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United States of America Patent
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app pub date -
Aug 19, 2016
filing date -
Aug 19, 2016
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Abstract
A system includes luminaires at a premises, where each luminaire has a light source, processor and radio frequency (RF) transceiver. The processor is configured to control the RF transceiver of the respective luminaire to transmit ranging signals to neighboring luminaires and receive response signals from neighboring luminaires. The processor computes time of flight (ToF) values relative to the neighboring luminaires. The system also includes a location solving server having a processor configured to receive the ToF values from the luminaires, compute relative distances between the luminaires based on the ToF values, and determine relative locations of the luminaires within the premises based on the computed relative distances between luminaires. Knowledge of the relative locations of the luminaires, for example, may be used in personnel or asset tracking, e.g. based on data sent via light from the luminaires or by ranging and response signals exchanged with RF enabled assets.
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