全光纤分布式视频联动长距离周界安防监控系统

构建一种具有视频联动功能的全光纤分布式长距 离周界安防监控系统。系统采用全光纤分布式 扰动传感技术,实时监控作用在光缆上的各种扰动入侵行为,采用信号处理技术对入侵事 件进行定位和 识别,根据不同事件的特征发出警报信号,同时触发视频监控系统实现联动,摄录扰动行为 的视频信息, 并对其进行进一步处理。测试了系统的定位精度与误报率,结果表明,系统能有效实现 与视频的联动功能,定位准确度达到91%,在一般天气条件下误报率保持在一天3次以内 。本文系统将 新型光纤分布式传感技术、传统视频监控技术以及先进信号智能识别技术相融合,构成混合 式智能周界安全监控网络。

All fiber distributed long-distance perimeter security monitoring system with video linkage function

This paper constructs a kind of distributed long-distance fiber per imeter security monitoring system with video linkage function.Distributed fiber-opt ic vibration sensor technology based on dual Mach-Zehnder interferometer (DMZI) architecture is us ed in the system to monitor all kinds of real-time disturbances and intrusions on the cable.The system also uses signal processing technology so that it could locate and identify intrusion events,and emit different warning signals according to the different intrusion events.Meanwhile,the video surveill anc e system begins to record the disturbance behavior for further processing.Positi o ning accuracy and false alarm rate of the system are measured by experiment.The results show that this system can ef fectively achieve the linkage function with the video,the positioning accuracy reaches 91%,and t he false alarm rate is maintained at less than 3times a day in normal weather conditions.In this pape r,new distributed fiber sensing technology,traditional video surveillance technology and advanced signa l intelligent identification technology are fused,so a hybrid intelligent p erimeter security monitoring network is formed.