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针对目前可见光通信传输速率低、难以实现图像通信的问题,通过研究高亮度白光LED光强调制原理和光电检测器特性,研制了一种可见光图像传输系统。设计了系统的光发射与接收电路,编写了图像传输与显示程序。通过实验验证,系统实现了通信速率为2Mbit/s的PC机到PC机的字符及图像传输,为高速可见光通信的发展提供了一种可靠的电路设计方案。
Aiming at the problem that the transmission rate of visible light communication is low and it is difficult to realize the image communication, a visible light image transmission system is developed by studying the principle of high intensity white light intensity modulation and the photodetector characteristics. Design of the system of light emitting and receiving circuit, the preparation of the image transmission and display procedures. Through the experimental verification, the system realizes the character and image transmission from PC to PC with communication speed of 2Mbit / s, which provides a reliable circuit design for the development of high-speed visible light communication.