LINE-OF-SIGHT OPTICAL DETECTION SYSTEM, AND COMMUNICATION SYSTEM
First Claim
1. Line-of-sight optical detection system (1), comprising:
- an illumination system (10) comprising a plurality of dimmable light sources (11, 12, 13, 14);
a controller (30) designed for controlling the light sources such that they emit coded light;
at least one light detector (21, 22, 23, 24) having an output coupled to the controller, the detector being capable of receiving light from two or more of said light sources (11, 12, 13, 14);
wherein the controller (30) is designed to decode the signal received from the detector, to determine which light source contributes to the light received by the detector and, on the basis of the outcome, to determine a location of an object (2).
1 Assignment
0 Petitions
Accused Products
Abstract
A line-of-sight optical detection system comprises: a plurality of dimmable light sources (11, 12, 13, 14); a controller (30) for controlling the light sources to emit coded light; a detector (21, 22, 23, 24), receiving light from two or more of said light sources. The controller decodes the detector output signal, determines which light source contributes to the light received by the detector and, on the basis of the outcome, determines a location of an object (2). A communication system (100) comprises:—a plurality of dimmable light sources (111, 112, 113, 114); a controller (130) for controlling the light sources to emit coded light; a receiver (200) comprising a CPU (230) and a light detector (211), receiving light from at least one of said light sources. The CPU (230) decodes the detector output signal and, on the basis of the outcome, decides on an action to be taken.
24 Citations
19 Claims
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1. Line-of-sight optical detection system (1), comprising:
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an illumination system (10) comprising a plurality of dimmable light sources (11, 12, 13, 14); a controller (30) designed for controlling the light sources such that they emit coded light; at least one light detector (21, 22, 23, 24) having an output coupled to the controller, the detector being capable of receiving light from two or more of said light sources (11, 12, 13, 14); wherein the controller (30) is designed to decode the signal received from the detector, to determine which light source contributes to the light received by the detector and, on the basis of the outcome, to determine a location of an object (2). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
wherein the controller (30) is designed to decode the signals received from the detectors, to determine which light source contributes to the light received by each detector and, on the basis of the outcome, to determine a location of an object (2).
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5. Intrusion detection system, comprising a line-of-sight optical detection system according to claim 1.
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6. Intruder tracking system, comprising a line-of-sight optical detection system according to claim 1.
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7. Traffic monitoring system, comprising a line-of-sight optical detection system according to claim 1.
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8. Traffic counting system, comprising a line-of-sight optical detection system according to claim 1.
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9. Weather monitoring system, comprising a line-of-sight optical detection system according to claim 1.
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10. Apparatus safety system, comprising a line-of-sight optical detection system according to claim 1.
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11. Communication system (100), comprising:
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an illumination system (110) comprising a plurality of dimmable light sources (111, 112, 113, 114); a controller (130) designed for controlling the light sources such that they emit coded light; a receiver (200) comprising a CPU (230) and a light detector (211) having an output coupled to the CPU (230), the detector being capable of receiving light from at least one of said light sources; wherein the CPU (230) is designed to decode the signal received from the detector and, on the basis of the outcome, to decide on an action to be taken. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification