光纤编码技术在区域定位监控中的应用  

Application of fiber-optic encoding technology in multiple-zone intrusion detection system

作　　者：唐璜[1] 吴红艳[1] 章骅[1] 贾波[1] 

机构地区：[1]复旦大学材料科学系,上海200433

出　　处：《仪器仪表学报》2010年第4期912-915,共4页Chinese Journal of Scientific Instrument

基　　金：科技部创新方法工作(2008IM041200)资助项目

摘　　要：提出了一种适用于光纤长距离环境监控的区域定位新方法。具体是利用布设在现场的传感光纤对区域环境振动实现实时记录,用白光干涉方法实现振动信号的提取和还原,用传感光纤的编码(排列组合),实现不同区域的定位。通过实验研究表明,该方法能对环境触发信号进行实时监控,并能确定信号所属区域。应用光纤编码技术实现区域定位,能有效减少光纤长距离监控系统的复杂程度,降低系统成本,有望在大区域、长距离的监控领域获得成功应用。A novel technology for zone-location is proposed in this paper, which is very suitable for optical-fiber monitoring in long-distance and large-area application. This method adopts optical fiber to sense certain environment vibration, obtain and reproduce the vibration signal using white-light interferometry, and then locate the vibration zone by means of fiber-optic encoding, i.e. the arrangement of sensing optical fibers. Experiment research testifies that this method is able to monitor the vibration signal and locate the intrusion zone in real-time. This technology can decrease the complexity of optical fiber long-distance monitoring system and reduce the system cost. Therefore this technology is hopeful to be applied in large-area and long-distance multi-zone intrusion detection systems.

关 键 词：白光干涉 光纤 编码 区域定位 

分 类 号：TN92[电子电信—通信与信息系统]