基于手机摄像头的可见光通信技术研究

With the popularity of smart phones and the development of visible light communication (VLC) technology, using smart phone camera as the receiver for visible light communication has become one of the hot research areas of communication at home and abroad. In this paper, we introduce the system of using smart phone camera for VLC. Firstly, the principle of using smart phones camera as the VLC receiver is introduced. Then, the system experiment is introduced, including setting up experimental system, reducing the blooming effect by LED lampshade and the signal demodulation. Finally, the BER performance of the system is measured at different transmission distances, and the experimental results are analyzed. At the data rata of 2kbps, the transmission distance of 10cm error-free transmission can be achieved.