Image sensor controlled lighting fixture
First Claim
1. A lighting system for providing illumination to an area comprising a plurality of independent lighting fixture, each lighting fixture comprising:
- a controller;
an image sensor and wide-angle lens component operably connected to the controller and having a viewing angle that covers a detection area encompassing an entire predefined space; and
a light source operably connected to the controller;
wherein the controllerreceives a detection signal data from the image sensor and wide-angle lens component when a user is within the predefined space,determines the position of the user from a center line associated with the light source based on the detection signal data, andcontrols the light source based on the position of the user to thus increase light source illuminance as the user approaches the center line and to decrease light source illuminance as the user moves away from the center line.
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Abstract
Methods and systems for controlling lighting fixtures independently with image sensors. In an embodiment, a luminaire includes a controller, an image sensor and wide-angle lens component, and a light source. The controller receives detection signal data from the image sensor and wide-angle lens component when a user is within a detection area associated with a view angle of the wide angle lens, and then determines the position of the user. The controller then controls the illuminance of the light source based on the position of the user. In particular, illuminance is increased as the user approaches a center portion of the detection area, and decreased as the user moves away from the center portion.
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Citations
14 Claims
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1. A lighting system for providing illumination to an area comprising a plurality of independent lighting fixture, each lighting fixture comprising:
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a controller; an image sensor and wide-angle lens component operably connected to the controller and having a viewing angle that covers a detection area encompassing an entire predefined space; and a light source operably connected to the controller; wherein the controller receives a detection signal data from the image sensor and wide-angle lens component when a user is within the predefined space, determines the position of the user from a center line associated with the light source based on the detection signal data, and controls the light source based on the position of the user to thus increase light source illuminance as the user approaches the center line and to decrease light source illuminance as the user moves away from the center line. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for controlling illumination of an area comprising:
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monitoring, by a plurality of independent luminaires, a predefined area for a presence of at least one user, wherein each luminaire comprises; a controller; an image sensor and wide-angle lens component operably connected to the controller and having a viewing angle that covers a detection area encompassing the entire predefined area; and a light source operably connected to the controller; detecting, by each of the plurality of independent luminaires, a user when the user is in the predefined area; and controlling, by each controller of the plurality of independent luminaires, the illuminance of its light source based on a detection signal data from its image sensor and wide-angle lens component, wherein when the detection signal data indicates that the user is approaching a center line associated with its light source of the luminaire the controller controls the light source to increase illuminance, and wherein when the detection signal data indicates that the user is moving away from the center line the controller controls the light source to decrease illuminance. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification