网络摄像监控光路保护系统及应用
王慧
刘桂？
张蛋2
周孔沛2
杨锐2
第36卷第7期（2017.07）电信自控
摘要：油气管道工程中工业电视系统多采用单一、无保护的光统传输信号，经常出现光缆被破环面造成信号无法传输至监控终端的问题。为了提高安防稳定性，研发了一种网络摄像监控光路保护系统。该系统每路摄像机采用1×2光开关，占用1芯，正反两个方向构成回路，即使光纤单侧中断或者故障，前璃网络摄像机采集的信息也会通过光开关的自动检测切换功能，从另一方向传输至监控终端。实际应用证明，网路摄像监控光路保护系统可保证数据的不中断传输，提高了系统的可靠性。
关键词：工业电视；网络摄像监控；光路保护系统；不中断传输；自动检测；1×2光开关 Doi :10.3969/j.issn.10066896.2017.07.018
Network Camera Monitoring Optical PathProtection System and Its Application Wang Hui, Liu Guizhi, Zhang Ying, Zhou Kongpei, Yang Rui
Abstract: The Industrial television system in oil and gas pipeline engineering usuelly use single and unprotected optical cables to transmit signals, so the problem that optical cables are often destroyed and cannot transmit signals to the monitoring terminal often appears. In order to improve the security sta bility, a network camera monitoring optic path protection system is developed. Cameras in each path use 1 x2 optical switches, which take up 1 core, and the loop is formed in forward and backward di-rection. Even if the onesided fiber breaks off or breaks down, the information that gathered by the front network camera will be transmit to the monitoring terminel in the other direction through the du tomatically detection and switch function of the optical switch, Practical application proves that the net work camera monitoring optical protection system can guarantee the uninterrupted transmission of data and improve the reliability of the system.
Key words: industrial television; network camera monitoring; optical path protection system; uninter rupted transmission; automatic detection; 1 × 2 optical switch
目前，油气管道工程中工业电视监控多采用1 根多芯光缆传输工业电视视频和控制信号，每台摄像机占用2芯光纤。由于扩建工程、人为以及光纤自身等各种原因，经常会出现光纤基至光缆被破坏的情况，在没有采取保护措施的情况下，一且光缆中断，后续的摄像机均无法传输信息至终端监控平台。油气管道地面工程对安防的要求非常高，光缆中断给油气管道地面工程带来了很大的安全隐患，需要投入大量运维人员不断地进行维护1-3
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传统油气管道工业电视原理
传统油气管道工业电视监控系统主要由摄像机、监控终端、监控主机、以太网交换机、光纤收发器等组成，前端网络摄像机通过埋地敷设的光缆将视频信号传输至后端监控设备。某油气管道站场
“中国石油管道学院‘中国石油天然气管道工程有限公司油气田地面工程https/wwwayqtdmgc.com
万方数据
摄像监控路由如图1所示，工业电视监控系统如图 2所示。
1摄像机
摄缘机
一体化枪式摄像机
综合值班室隔油池
压活污水处理设雷告营池
务
4'报像机噪
3*摄像机
会一体化球机
某场区摄像监控路由图图1
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