基于光纤网的光缆线路故障告警技术研究

The Study of Optical Line Fault Alarm Technology Based on Fiber Optic Network

摘要: 云南地形气候复杂，光缆线路时常存在安全隐患。光缆线路的正常运行是保障电力系统安全稳定运行的重要条件，及时掌握光纤线路的实时运行状态，是保证电力系统信息畅通的基本前提。目前，现有的各类光缆线路需要管理维护，拓扑结构比较复杂，运维任务困难、繁重。本文首先构建了光纤网络智能化监测系统架构，由管理层、监视层、测试层构成，可以实现对主干光缆网络运行状态的实时监测。接着研究了光纤网OTDR检测技术，并建立了包含传感子系统，数据采集处理子系统，专家及测距子系统的光缆故障告警监测系统，结合定位技术，实现光缆故障的精确定位。并采用故障点定位分段函数算法等技术，对光缆故障或异常信息进行分析，提高了运行效率，建设现代化、信息化、智能化电网做出贡献。

Abstract: Yunnan terrain climate is complicated; cable lines often exist security risks. The normal operation of optical fiber cable is an important condition to ensure the safe and stable operation of power system. To grasp the real-time operating status of optical fiber lines in time is the basic prerequisite for ensuring the smooth flow of power system information. At present, the existing types of optical cable lines need to be managed and maintained, the topology is complicated, and the operation and maintenance tasks are difficult and heavy. This paper first builds an optical fiber network intelligent monitoring system architecture, which consists of management layer, monitoring layer and testing layer, which can realize the real-time monitoring of the operating status of the backbone optical cable network. Then, the optical fiber network OTDR detection technology is researched and a fiber optic cable fault alarm monitoring system including sensing subsystem, data acquisition and processing subsystem, expert and distance measuring subsystem is established. With the combination of positioning technology, the accurate positioning of optical fiber cable fault can be realized. And the fault point positioning segmentation function algorithm is used to analysis fiber optic cable fault and abnormal information, which improves operational efficiency and makes a contribution for building a modern, informative and intelligent power grid.