Intelligent light retrofit
AssigneeenLighted, Inc.
InventorsTanuj Mohan, Premal Ashar
Life of this patent
Estimating the term…
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.
Claims16
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.
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 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.
A light fixture retrofit kit comprising:
- a sensor unit and a dimming controller;
- wherein
- the 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.
Dependencies are inferred from the claim text.