PRESENCE DETECTION USING SPLIT BEAM LUMINAIRE Russian patent published in 2017 - IPC H05B37/02 

Abstract RU 2610426 C2

FIELD: lighting.

SUBSTANCE: invention relates to field of lighting systems and, more specifically, to method and system for detecting an object in a region, ambient lighting device with split light beam. Result is achieved due to that lighting device (200) includes first light source (203), second light source (205) and sensor (216). First light source (203) is capable of emitting first light beam (204), adapted for lighting a first given area. Second light source (205) is configured to emit second light beam (206), adapted for lighting background area surrounding first given area. Sensor (216) is capable of detecting reflected first light beam (210) and reflected second light beam (212). Method includes determining whether objects are present in area (207), surrounding lighting device (200), based on comparison of information, indicating signal level of detected reflected first light beam (210), and information indicating signal level of detected reflected second light beam (212).

EFFECT: reduced power consumption of lighting systems.

15 cl, 10 dwg

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RU 2 610 426 C2

Authors

Vissenberg Mikhel Kornelis Josefus Mari

Pasveer Villem Franke

Dingemans Antonius Petrus Marinus

Dates

2017-02-10Published

2012-10-24Filed