Efficient address assignment in coded lighting systems

摘要

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.

主权项

1. A remote controller comprising:
a receiver for receiving coded light from a light source in a coded lighting system, said coded light comprising an initial light source identifier of said light source; and a processing unit for assigning a modified light source identifier to said light source based on the received coded light such that said modified light source identifier replaces said initial light source identifier and is composed of less data than the initial light source identifier; and a transmitter for transmitting said modified light source identifier to said light source.