White LED illumination combines with visible light communication technology

construct visible light wireless communication system based on white LED. In order to solve the near range（ such as aircraft

hospital

mines and other places） wireless communication problems

based on the principle of visible light communication technology and characteristics of the white LED source

present a visible light communication system with on-off keying（ OOK） modulation technique and PIN tube for optical power detector. MCU AT89C51 is used to produce music signal and music signal transmission is realized indoor

at the same time

in order to enhance communication performance of the system

LED optical array is designed

and related experiments are carried out.Experiments show that the music signal can transmit and broadcast through the white LED visible light communication system in interior

and the system can meet wireless communication demand in the near range

the ASK modulation and demodulation techniques used in the system are relatively simple

which greatly reduces cost of the system and complexity of design.