光路自动切换保护技术的原理和应用设想  

Principle and application imagination of optical path auto-switch protection technology

作　　者：吴湛[1] 

机构地区：[1]华中科技大学电信系,湖北武汉430074

出　　处：《电力系统通信》2006年第2期17-20,共4页Telecommunications for Electric Power System

摘　　要：随着光通信技术在电力系统通信领域的大量应用,如何提高光传输网络的生存性已经成为至关重要的问题。文章首先对目前已有的几种提高通信可靠性的方法进行了比较,认为光路自动切换保护技术和SDH自愈保护技术结合,会大大提升光传输网络的生存性能;重点介绍了光路自动切换保护技术的原理,提出了两种实现自动光切换的方法,即根据光监测模块的告警和SDH网管告警,给出了一个应用设想的实例。With the optical fiber communication technology applied largely in electric power communication system, how to improve subsisting capacity of optic fiber transmission network is becoming a very important issue. Firstly the article contrasts several existed methods of improving optical communication dependability. The subsisting capacity of the optical transmission system can be greatly enhanced if the optical path auto-switching protection technology and SDH self-healing protection technology are integrated together. Then, it emphatically introduces the principle of optical path auto-switching protection technology. It also gives two ways to execute auto-switch ： according to alarms of light detector switch and alarms of SDH network administration switch. Finally, it gives an example of application imagination.

关 键 词：自愈保护 光路自动切换 网络生存性 光开关 

分 类 号：TN914.332[电子电信—通信与信息系统] TM771[电子电信—信息与通信工程]