光纤监测系统在光缆线务维护中的应用-计算机技术专业论文.docxVIP

The researches done in this paper are working on how to deploy a fiber-optic monitor system via studying some successful foreign cases. According to the maintenance demand of the fiber cable by Shanghai Telecom, the monitoring system should cover 14 first-class cables in the area, support a flexible fiber backup and online monitor resolution fiber and show up the visual position and info of failure on an e-map with WebGis format. When the fault occurs, the system can let us know the problem immediately, figure out where it is quickly and accurately, shorten the time for the cable repair, and restore the communication business, which may lower the losses to the minimum. In this paper, it starts on comparing several popular fiber monitor systems, analyzing a various performance indicators of optical components, combining the fiber cable status in Shanghai Telecom area, researching the hardware design of fiber cable backup system, fiber routing monitor system and the optical optical devices distribution system. Then it works on the design of GIS database, researches the software design of data tables, attribute tables, warning reception daemons, warning positioning systems showing WebGIS module. Finally, it gives objective evaluations of the working status of the system and describes the lack and prospects. KEY WORDS optical fiber monitor, optical fiber test, fault location, fault display, WebGIS 目 录 第 1 章 概述 1 1.1 研究背景 7 1.2 研究内容介绍 8 1.3 文章结构安排 9 第 2 章 光纤监测系统的系统架构 9 2.1 光纤监控 9 2.2 光纤测试11 2.3 故障定位 12 2.4 故障显示 13 2.5 系统架构 13 第 3 章 光纤监测子模块设计 14 3.1 分光器 14 3.2 稳定光源 16 3.3 光功率监控模块（OPM） 16 3.4 光时域反射仪（OTDR） 17 3.5 监测光路设计 20 3.6 监测光路路由 21 第 4 章 故障定位显示子模块 25 4.1 一些需明确的概念 25 4.2 故障定位显示模块结构设计 26 4.3 GIS 数据库结构 26 4.4 告警接收守护进程 35 4.5 WEBGIS 39 第 5 章 结果与展望 48 5.1 系统测试结果 48 5.2 系统的不足和展望 49 参考文献 50 致谢 53 作者攻读学位期间发表的论文 54 PAGE PAGE 1 第 1 章 概述 1.1 研究背景 21 世纪是全球网络化的时代，Internet 相关业务量和业务种类飞速增加，网络 带宽需求急速膨胀，传统的电媒质传输网络显然已经不能适应这一飞速增长的需 求。从 SDH（同步数字分层 Synchrono