Intelligent lighting device, and method and system thereof

An intelligent lighting system, said system comprising a plurality of lamps, each lamp of the system comprising lighting means adapted to illuminate and to transmit a lamp optical control signal, a high power circuit for driving the lighting means, optical communication means adapted to receive an overall optical control signal and transmit said lamp optical control signal, the overall optical control signal being the sum of lamp optical control signals coming from the other lamps of the system, and a control module (configured to control the high power circuit for modulating the brightness of the lighting means of the lamp, the control module being further configured to provide said lighting means or the optical communication means of the lamp with said lamp optical control signal containing data concerning its own state for transmission to the other lamps, and to receive from the optical communication means said overall optical control signal, the control module being adapted to discern the information contained in the lamp optical control signal coming from each lamp, so that the brightness of the lighting means of the lamp is modulated based on the data contained in the overall optical control signal received by the optical communication means.

An intelligent lighting method, said method comprising

• providing a network of lamps communicating with one another, each lamp of the network comprising lighting means adapted to illuminate and to transmit a lamp optical control signal, a high power circuit for driving the lighting means, optical communication means adapted to receive an overall optical control signal and transmit said lamp optical control signal, the overall optical control signal being the sum of lamp optical control signals coming from the other lamps of the system, and a control module configured to control the high power circuit for modulating the brightness of the lighting means of the lamp, the control module being further configured to provide said lighting means or the optical communication means of the lamp with said lamp optical control signal containing data concerning its own state for transmission to the other lamps, and to receive from the optical communication means said overall optical control signal, the control module being adapted to discern the information contained in the lamp optical control signal coming from each lamp,
• modulating the brightness of the lighting means based on the data contained in the received optical control signal.

A method according to claim 3, wherein a second modulation, i.e. an error correction coding, in particular an LDPC or Low Density Parity Check coding, is superimposed on said modulation.