Coded light transmission and reception

摘要

There is provides an illumination system which comprises a plurality of luminaries or light sources. Each luminary or light source comprises a light driver capable of receiving and storing a dynamic light effect pattern, and from the dynamic light effect pattern creating a light effect. The color and/or intensity of the luminary or light source is thereby dynamically varied. The light driver is further arranged to embed data in the light effect. Each luminary or light source further comprises a light emitter for emitting the light effect comprising the encoded data. A light detector is arranged to receive light emitted by other luminaries or light sources in the illumination system. A light decoder is arranged to decode data out of light received by the detector and arranged to determine the intensity of the light received.

主权项

1. A light source for a coded lighting system, comprising:
a light detector arranged to receive light and to determine a received intensity level of the received light; and a light decoder having access to information pertaining to a light effect pattern and configured to:
from said received light, decode a coded light message embedded in said received light,in said decoded coded light message identify a timestamp,from said determined intensity level, said timestamp, and said information pertaining to said light effect pattern, determine a distance value to an emission point of said received light.