图像信号并行长线传输的实现

摘要

采用并行长线实现了图像信号的传输,利用光电隔离技术设计了并行长线传输电路,解决了传输线反射造成的信号畸变问题,从电路和时序两方面提高了信号的抗干扰能力和数字波形质量,试验结果表明:信号在50m并行长线(分4段)中能够以1 Mbit/s的传输速率稳定传输.%The parallel line is used to achieve the transmission of image signal. Parallel long-distance transmission circuit is designed with the help of photoelectric isolation technology. Moreover, the signal distortion caused by the reflection of transmission line is solved. Thus, both signal anti-disturbance capability and digital waveform quality are improved from two aspects: circuits and timing. The experimental results show that signal can transmit steadily at the speed of 1 Mbit/s in 50 m long parallel long-distance (in four parts).