<p>A presence detection system (1) for detecting a living being (10) within an area (12). The area (12) comprises at least two zones (12A;12B). The system (1) in total comprises at least two light sources (2A;2B) each of them having a different predefined spectrum and each of them radiating light in a different zone (12A;12B). The system comprises at least two sensing means (4A;4B) sensitive to light of the first predefined spectrum and the second predefined spectrum respectively. Each of the sensing means (4A;4B) is arranged for detecting light reflected from the living being (10) if present in the zone (12A;12B) of the area (12) and for generating a presence signal (14A;14B) based on detected light. The system comprises a processor device (8) that concludes the presence of the living being (10) within the area (12) in a zone wise way based on the presence signals. Such presence detection system provides relatively precise presence detection. The invention also relates to a lighting system comprising the above mentioned presence detection system (1).</p>
申请公布号
WO2012056380(A1)
申请公布日期
2012.05.03
申请号
WO2011IB54690
申请日期
2011.10.20
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;JOHNSON, MARK, THOMAS;VAN DOOREN, MARIEKE;CENNINI, GIOVANNI
发明人
JOHNSON, MARK, THOMAS;VAN DOOREN, MARIEKE;CENNINI, GIOVANNI