基于Sagnac环的分布式光纤围栏智能预警安防系统

Distributed optic fiber perimeter security monitoring and intelligent warning system based on Sagnac ring

为了解决电力行业中存在变电站安防检测系统技术落后,不能实现集中管控、误警率高,无法满足全天候防护等问题,本文采用了基于萨格纳克效应传感技术的围栏智能预警新方法,结合现代周界及电力行业对围栏技术的总体要求,构建了基于围栏智能预警安防系统的基本结构模型,按照物理层、采集层、算法层和应用层进行层次分级,对每层涉及的关键技术进行分析,并对模型实现智能定址、智能感知、分布式监测、抗干扰能力、响应时间等功能的可行性进行论证,最后根据结构模型分层提出了围栏智能预警安防系统的初步设计方案。提出利用户外无有源器件信号、入侵报警与视频监控联动、用户定制分级告警等措施,可以有效解决抗干扰能力差、误报率高等问题,提升了我国的安防技术水平。

In order to solve the problems in the power industry,such as the backward technology of substation security detection system,the inability to realize centralized management and control,the high rate of false alarm and the inability to meet the requirements of all-weather protection,in this paper,a new intelligent early warning system for fence based on Sagnac effect technology is adopted,and the basic structure model of intelligent early warning system for fence based on fence is constructed according to the general requirements of modern perimeter and electric power industry,according to the physical layer,the acquisition layer,the algorithm layer and the application layer,the key technologies involved in each layer are analyzed,the feasibility of the model to realize the functions of intelligent location,intelligent perception,distributed monitoring,anti-interference ability,response time and so on is demonstrated.Finally,according to the structural model,the preliminary design scheme of the fence intelligent early-warning security system is proposed.This paper puts forward some measures,such as no active device signal in the open air,the linkage of intrusion alarm and video surveillance,and user-customized grading alarm,which can effectively solve the problems of poor anti-interference ability and high false alarm rate,and improve the security level of our country.