基于CPLD的数字光端机的设计

摘要

远程监控技术的应用随着日益发展的现代安防技术而变得越来越广泛. 而由光纤作为传输介质的数字光端机,已经成为远程监控应用中的首选. 本文详细介绍了数字光端机的架构与工作原理,完成基于CPLD的无压缩2路视频传输,2路音频传输和一路反向数据传输的数字光端机的设计. 实验证明,系统工作性能稳定可靠,实时传输效果好,可广泛应用于安防行业.%The application of remote monitoring technology with the increasingly development of modern security technology and become more and more widely. And by the optical fiber as transmission medium of digital optical transceiver, has become the first choice in the applications of remote monitoring. This paper introduces in detail the architecture and working principle of digital optical transceiver, complete based on CPLD (complex programmable logic device) two-way uncompressed video transmission, two-way audio transmission and one-way reverse data transmission design of digital optical transceiver. Experiments show that the system performance is stable and reliable, real-time transmission effect is good, can be widely used in security industry.