Abstract:

Because the existing wireless image transmission system has poor anti-interference ability and low confidentiality issues, an image transmission system based on VLC(Visible Light Communication) is designed.51 processor is used as the main controller, using visible LED(Light Emitting Diode) high-velocity modulation as information carrier, visible light of high-speed modulation emitted from the LED is utilized as information carrier,photodiode is utilized to receive optical carrier signals, the image information is obtained through the PC,wireless image transmission based on visible light communication is realized. The results show that the maximum bit transfer rate of the device is 0. 1 Mbit/ s when the communication distance is 0. 7 m, the BER(Bit Error
Rate) is less than 10-5. The system effectively overcomes the problems inherent in the conventional image transmission system of the wireless, it is a good supplement for short-range wireless communications technology,having a good prospects.

Key words: visible light communication (VLC), image transmission, white light emitting diode (LED)