基于LED灯矩阵的可见光通信发射系统

Transmitting system of visible light communication based on LED array

为降低手机摄像头接收可见光信号的难度,研制了一套新型发光二极管(LED)灯矩阵可见光通信发射系统。创新性提出通信灯与定位灯结合的灯矩阵排布结构,并自主设计了隔帧加载全亮灯光画面的特殊编码方式,实现光信息并行传输的同时保证照明效果。利用Matlab仿真软件对系统的照明与通信性能进行仿真分析,并对通信性能进行实验测试。结果表明:发射系统在2次有效信息传输中穿插一帧全亮画面,可以满足照明需求,且传输误码率较低,通信性能较好。

To reduce the difficulty of receiving visible light signals from mobile phone cameras,a new light-emitting diode(LED)light array visible light communication transmitting system is developed.A lamp array arrangement structure combining communication lamp and positioning lamp is innovatively proposed,and a special encoding method of frame spacing loading a full light screen is designed to ensure the illumination effect while realizing the parallel transmission of optical information,Matlab simulation software is used to simulate and analyze the lighting and communication effects of the system,and the communication effect is tested experimentally.The results show that the transmission system can meet the lighting requirement by interspersing one frame of full bright picture between two effective information transmissions,and the transmission bit error rate is low,and the communication performance is good.