Efficient address assignment in coded lighting systems

H - Electricity – 05 – B

Patent

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H05B 37/02 (2006.01)

Patent

CA 2757938

Coded light has been proposed to enable advanced control of light sources and transmit information using light sources. It is based on invisibly embedding of data and identifiers in their light output. Methods, devices and systems configured to efficient assignment of addresses in a coded lighting system, still allowing for unique identification, are proposed. More specifically, the assignment of addresses occurs in two phases, where in the initial phase wide area unique addresses are used, while in the second phase only local area unique addresses are used. Also, methods, devices and systems configured to efficiently distribute a set of addresses over a set of light sources in this second phase, to maximize the performance of the illumination contribution estimation, and positioning, are disclosed.

Un éclairage codé a été proposé pour permettre une commande avancée de sources de lumière et transmettre des informations à l'aide de sources de lumière. Cela est basé sur l'incorporation invisible de données et d'identifiants dans la lumière qu'elles émettent. L'invention porte sur des procédés, des dispositifs et des systèmes configurés pour attribuer efficacement des adresses dans un système d'éclairage codé, tout en permettant encore une identification unique. Plus spécifiquement, l'attribution d'adresses se déroule en deux phases, des adresses uniques de zone étendue étant utilisées dans la phase initiale tandis que des adresses uniques de zone locale seulement sont utilisées dans la seconde phase. L'invention porte également sur des procédés, des dispositifs et des systèmes configurés pour distribuer efficacement un ensemble d'adresses sur un ensemble de sources de lumière dans cette seconde phase, afin de maximiser les performances de l'estimation de contribution à l'éclairement, et du positionnement.

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