Camera-based lighting control
    4.
    发明授权

    公开(公告)号:US12022589B2

    公开(公告)日:2024-06-25

    申请号:US17606272

    申请日:2020-04-30

    CPC classification number: H05B47/125 H05B47/11 H05B47/175

    Abstract: A camera-based sensor device (200) and method for use in a controllable lighting system (100). The camera-based sensor device (200) comprises: a communications interface (203); a camera (201) for capturing images of a scene, each image comprising an array of pixels; and a processor (202). The processor (202) is configured to determine at least one light performance indicator, LPI, from an image captured by the camera (201). The LPI is a combined metric derived from a plurality of pixels of the array of pixels in the image. The processor (202) is configured to transmit, via the communications interface (203), the determined at least one LPI to the controllable lighting system (100) for use by the controllable lighting system (100) to make a control decision based on the LPI. The processor (202) does not transmit any of the images of the scene.

    CONTROL A DIMMING LEVEL OF AN ILLUMINATION LOAD BY A DIMMER DEVICE

    公开(公告)号:US20230363062A1

    公开(公告)日:2023-11-09

    申请号:US18195799

    申请日:2023-05-10

    Applicant: ROKU, INC.

    Abstract: Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments, and/or combinations and sub-combinations thereof, for a dimmer device including a driver, and a controller communicatively coupled to the driver and to a monitor device. The monitor device can include a camera and is configured to take a plurality of images of the illumination load. The controller provides a control signal that indicates to the driver to adjust power supplied to an illumination load. The control signal is provided in response to a determination that a performance of the illumination load fails to satisfy a predetermined performance indicator. The performance of the illumination load is determined based on information related to the plurality of images of the illumination load taken by the camera of the monitor device. The controller can adjust a dimming level of the illumination load by providing the control signal to the driver.

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