Invention Grant
- Patent Title: Determining the position of a portable device relative to a luminaire
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Application No.: US15577071Application Date: 2016-05-12
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Publication No.: US10368414B2Publication Date: 2019-07-30
- Inventor: Louis-Xavier Marie Montagne
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: SIGNIFY HOLDING B.V.
- Current Assignee: SIGNIFY HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Agent Akarsh P. Belagodu
- Priority: EP15305790 20150526
- International Application: PCT/EP2016/060685 WO 20160512
- International Announcement: WO2016/188760 WO 20161201
- Main IPC: H05B33/08
- IPC: H05B33/08 ; G01C21/20 ; G01S1/70 ; G01S5/16 ; F21V9/08 ; G01J3/28 ; H04B10/116 ; H04B10/548 ; H04N5/225

Abstract:
A system for determining the position of a portable device (501) relative to a luminaire (100, 503) is disclosed. The system comprises at least one luminaire (100, 503) that comprises at least two light emitters (101A, 101B) for emitting light that comprises a light signature identifying the light emitter from which the light is originated. The system further comprises an optical system (102) that creates a position specific distribution (103) of the light emitted by the two light emitters (101A, 101B). This light can be sensed by a portable device (501) comprising a sensor for sensing light, a memory for storing distribution information indicative of the distribution of the light emitted via the optical system (102) and a processor coupled to the light sensor for receiving data on the sensed light and coupled to the memory to get access to the information stored in the memory. The processor is arranged to determine the position of the portable device (501) relative to the luminaire (100, 503) on the basis of light sensed and the distribution information (103). Using the relative position, the absolute position of the portable device (501) in a space can be determined by using information on the position of the luminaire in said space.
Public/Granted literature
- US20180235049A1 DETERMINING THE POSITION OF A PORTABLE DEVICE RELATIVE TO A LUMINAIRE Public/Granted day:2018-08-16
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