基于白光LED的VLC系统设计

摘要

基于白光LED的调制性和高灵敏性，提出了一种白光LED灯的短距离信号传输VLC系统设计。系统由发射模块和接收模块组成，分别采用两个STC89C52芯片作为控制器，LED照明光波作为传输信号的载波，用光敏二极管、LCD显示屏实现信号的接收、光电转换和显示。系统最终检测表明，本设计实现了室内可见光短距离数据传输，并验证了系统的实用可靠性。%Based on the white LED light with regulation and high sensitivity, design of VLC system is presented on the informa⁃tion transfer. Two STC89C52 processors are used as the controllers of emission module and receiving module, using LED light is uti⁃lized as information carrier, photodiode and LCD is utilized to realize the conversion of the information and display. Finally it shows that the design can complete the visible short message data transmission, can be practical, and verify the practical reliability of the system.