Intelligent light retrofit
First Claim
1. A method of retrofitting a light fixture, comprising:
- interfacing a retrofit controller with a dimming ballast of the light fixture;
connecting the retrofit controller to at least one sensor; and
connecting the retrofit controller to a power supply and a network;
wherein the retrofit controller provides low-power to the at least one sensor, allowing the at least one sensor to be electrically connected, removed and replaced without an electrician.
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Accused Products
Abstract
An apparatus and method of retrofitting a light fixture are disclosed. One method includes interfacing a retrofit controller with a dimming ballast of the light fixture, connecting the retrofit controller to at least one sensor, and connecting the retrofit controller to a power supply and a network. Another embodiment includes a light fixture retrofit controller and a separate sensor unit. The combination of the retrofit controller and a separate sensor unit are operative to provide power and dimming control of a dimming ballast of an existing light fixture. The dimming control is base on at least one of a signal sensed by the separate sensor unit and control information received from a network.
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Citations
16 Claims
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1. A method of retrofitting a light fixture, comprising:
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interfacing a retrofit controller with a dimming ballast of the light fixture; connecting the retrofit controller to at least one sensor; and connecting the retrofit controller to a power supply and a network;
wherein the retrofit controller provides low-power to the at least one sensor, allowing the at least one sensor to be electrically connected, removed and replaced without an electrician. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of retrofitting a light fixture, comprising:
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interfacing a retrofit controller with a dimming ballast of the light fixture; connecting the retrofit controller to at least one sensor; and connecting the retrofit controller to a power supply and a network; wherein connecting the retrofit controller to at least one sensor comprises attaching an external electrically conductive line between at least one external sensor and the retrofit controller; and wherein the external electrically conductive line provides power to the at least one external sensor from the retrofit controller. - View Dependent Claims (10, 11, 12, 13)
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14. A light fixture retrofit kit comprising:
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a sensor unit and a dimming controller;
whereinthe sensor unit comprises; a sensor, the sensor operative to generate a sensed signal based on at least one of sensed motion or light; wireless communication circuitry, the wireless communication circuitry operative to maintain a wireless link with a network; a controller, the controller operative to manage communication with the network, and to generate dimming control based on at least one of the sensed signal and communication from the network; and wherein the dimming controller comprises; means for receiving the dimming control and operative to adjust a dimming control line to a light ballast. - View Dependent Claims (15, 16)
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Specification