RADIO CONTROL TYPE ILLUMINATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To ensure signal transmitting and receiving in a radio control type illumination system between luminaires without interference in the light during communication discharged from an illumination device from the light out of communication.

SOLUTION: The radio control type illumination system 1 comprises a plurality of the luminaires 2 with a transmitter 3 and a receiver 4 for mutual radio communication. The transmitter 3 controls lighting of a light source 21 equipped with the luminaire 2 and modulates lighting frequency of light L discharged from the light source 21 to superpose signals on the light L. The receiver 4 receives the light L from the light source 21 and analyze the signals superposed on the light L. At least one of lighting frequency of the light L from the light source 21 during communication differs from the lighting frequency of the light L from the light source 21 out of communication. Then since the light L out of communication does not interfere with the light L during communication, communication performance between the luminaires does not deteriorate.

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