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US 8,412,354 B2Granted
Controllable light source having a plurality of light elements
AssigneeKoninklijke Philips Electronics N.V.
InventorsPeter Deixler, Cornelis Jojakim Jalink, Paul Stravers
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Abstract
A light source having a plurality of light elements and a control system for controlling the light elements. The control system comprises a plurality of light element controllers, each connected to a respective light element, and arranged to obtain light element data; and a bus interface, which is connected to the light element controllers via a light source bus. The bus interface provides the light element controllers with a general command, and the light element controllers generate light element drive signals on basis of the general command and the light element data.
Claims14
A solid state luminaire control system, comprising:
- a plurality of light sources in a luminaire;
- wherein each of said light sources has:
- a plurality of solid state light elements,
- a plurality of light element controllers, each connected to a respective one of said light elements, and arranged to obtain light element data;
- and
- a bus interface, which is connected to said light element controllers via a light source bus,
- wherein said bus interface is arranged to provide each of said light element controllers with a general command,
- wherein said light element controllers are arranged to generate light element drive signals on basis of said general command and said light element data;
- a luminaire controller connected to said bus interfaces of said light sources via a luminaire bus and receiving said general command with at least one associated symbol tag by a system bus,
- wherein the luminaire controller communicates to said bus interfaces said general command with said at least one associated symbol tag;
- said luminaire controller further including a symbol tag interpreter which includes a one associated symbol tag comparator operable to compare said at least symbol tag with a plurality of active symbol tags for said plurality of light elements.
8 more elements
A luminaire system, comprising:
- a plurality of luminaires, each of said luminaires having
- a luminaire controller in digital communication with a luminaire system bus;
- wherein said luminaire controller includes a tag store for securing a plurality of tags, each of said tags representative a physical attribute of a lighting device;
- said luminaire controller being in digital communication with a luminaire bus within said luminaire;
- said luminaire bus of said luminaire being in digital communication with a plurality of light element controllers, each light element controllers operable to read lighting commands from said luminaire controller and provide digital driving signal instructions to a solid state light source driver;
- wherein said luminaire controller of said luminaire receiving lighting commands from said system bus, said lighting commands including at least one tag and at least one command;
- said luminaire controller including instructions for a tag interpreter to compare said plurality of tags in said tag store with said lighting command tag and relay said lighting command to said luminaire bus;
- wherein each of said tag stores in each of said luminaire controller for each of said plurality of luminaires is operable to include non-unique tags.
5 more elements
A method of controlling a distributed network of a plurality of solid state luminaries in a solid state luminaire control system, comprising:
- broadcasting a general command to said plurality of solid state luminaries in said distributed network, each of said plurality of solid state luminaires having a plurality of light sources;
- connecting each of said plurality of light sources for each of said luminaires together on a luminaire bus;
- communicating commands to each of said plurality of light sources from a luminaire controller;
- reading said communicated commands from said luminaire controller at each of said plurality of light sources with a light source controller, said light source controller for each of said plurality of light sources controller a driver to drive a lighting element;
- said broadcast general command read by said luminaire controller including at least one tag symbol;
- comparing said at least one tag symbol of said general command with a plurality of active symbol tags assigned to said luminaire controller;
- transmitting said broadcast general command and said at least one tag symbol to said luminaire bus when said luminaire controller matches said at least one tag symbol of said general command with at least one of said plurality of active symbol tags assigned to said luminaire controller;
- reading said transmitted broadcast general command by each of said plurality of light sources electrically connected to said luminaire bus;
- interpreting said transmitted general command by each of said plurality of light source controllers in said luminaire by a tag interpreter to selectively drive said lighting element.
6 more elements
Dependencies are inferred from the claim text.