Occupancy sensing smart lighting system
First Claim
1. A smart lighting system comprising:
- a plurality of non-imaging color sensors;
a plurality of color controllable lights;
a system that perturbs the color controllable lights within a space;
a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information;
a system that estimates an occupancy within a space calculated from the light transport model; and
an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy.
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Abstract
A smart lighting system and method that estimates occupancy using perturbation-modulated light and distributed non-imaging color sensors. A system is disclosed that includes a plurality of non-imaging color sensors; a plurality of color controllable lights; a system that perturbs the color controllable lights within a space; a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information; a system that estimates an occupancy pattern or distribution within a space; and an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy.
31 Citations
20 Claims
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1. A smart lighting system comprising:
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a plurality of non-imaging color sensors; a plurality of color controllable lights; a system that perturbs the color controllable lights within a space; a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information; a system that estimates an occupancy within a space calculated from the light transport model; and an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling lighting in a space having a plurality of color sensors and a plurality of color controllable lights, the method comprising:
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outputting control values to the color controllable lights to cause a base light to be generated within a space; periodically outputting further control values to perturb the color controllable lights within the space; collecting resulting color information from the color sensors; building a light transport model based on the color information; utilizing the light transport model to calculate an estimated occupancy of the space; and adjusting the base light in response to the estimated occupancy and a predefined control strategy. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A lighting control system that adjusts a set of color controllable LED lights based on an estimated occupancy, the system comprising:
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a lighting controller that outputs control values to the set of color controllable LED lights to generate a base light within the space and to cause perturbations to the base light; a sensor data manager that receives sensed color information from a plurality of non-imaging color sensors located within the space; a light transport modeler that stores the sensed color information and associated perturbation information in a light transport model; and an occupancy estimation system that calculates an estimated occupancy of the space based on the light transport model, wherein the estimated occupancy is provided to the lighting controller to adjust the base light. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification