光纤围栏传感预警系统关键技术研究

发布时间：2018-10-08 08:15

【摘要】：随着光通信技术的迅猛发展,光纤传感技术为安全防护领域注入了新的活力与生机,基于光纤传感技术的光纤围栏传感预警系统越来越受到人们的关注与重视。与传统的围栏报警系统相比,光纤围栏预警系统具有灵敏度高、抗电磁干扰、耐腐蚀、全程无源、监测范围大等优点,利用光纤作为传感媒质对一定范围内的突发事件进行远程和实时监控。目前,基于光纤传感器的监测技术已经在很多领域得到应用,如对石油和天然气管道的监测,对桥梁、建筑等大型结构的健康检查等等。光纤围栏传感预警系统不仅在周界安防领域有着广阔的应用前景,同时也是未来智能安防的主流研究方向。因此,对光纤围栏传感预警系统的研究具有重要的现实意义。本论文通过对比几种在光纤围栏系统中常用的检测技术,分析利用M-Z干涉技术设计实现了一种新型光纤围栏传感预警系统,并对设计的系统结构做了可行性分析。最后通过现场实验说明,实验设计的基于M-Z干涉技术的光纤围栏传感预警系统能够有效完成对入侵行为的预警工作。本课题具有较强的实用性,论文所做主要工作包括:(1)分析了光纤围栏传感预警系统的国内、外研究现状,总结出基于M-Z干涉技术的光纤围栏传感预警系统具有重要的研究价值。(2)详细分析光纤围栏系统中常用的检测技术,对比分析后采用M-Z干涉技术对系统进行设计。(3)提出利用基于二叉树的SVM分类方法对入侵行为进行分类,以及分析研究了两路干涉信号的时延估计方法。(4)设计实现基于M-Z干涉技术的光纤围栏传感预警系统结构,提出将系统围栏主机模块划分为五层信息模型的设计方案,并对其进行了可行性分析。(5)对光纤围栏传感预警系统进行了现场测试实验,测试结果表明,实验设计的基于M-Z干涉技术的光纤围栏传感预警系统对入侵行为具备准确的报警能力。
[Abstract]:With the rapid development of optical communication technology, optical fiber sensing technology has injected new vitality and vitality into the field of security protection. The optical fiber fence sensing early warning system based on optical fiber sensing technology has attracted more and more attention. Compared with the traditional fence alarm system, the fiber optic fence warning system has the advantages of high sensitivity, resistance to electromagnetic interference, corrosion resistance, passive whole process, wide monitoring range, etc. Optical fiber is used as sensing medium for remote and real-time monitoring of unexpected events in a certain range. At present, the monitoring technology based on optical fiber sensors has been applied in many fields, such as oil and gas pipeline monitoring, health inspection of large structures such as bridges, buildings and so on. Fiber optic fence sensing early warning system not only has a broad application prospect in perimeter security field, but also is the mainstream research direction of intelligent security in the future. Therefore, the research of fiber-optic fence sensor early-warning system has important practical significance. In this paper, by comparing several commonly used detection techniques in the fiber fencing system, a new type of fiber-optic fence sensing and warning system is designed and implemented by using M-Z interferometry, and the feasibility of the system structure is analyzed. Finally, the experimental results show that the fiber optic fence sensing early warning system based on M-Z interferometry can effectively realize the early warning of intrusion behavior. The main work of this thesis is as follows: (1) the domestic and foreign research status of the optical fiber fencing sensor early warning system is analyzed. This paper summarizes the important research value of the fiber optic fence sensing early warning system based on M-Z interferometry. (2) the commonly used detection techniques in the optical fiber fence system are analyzed in detail. After comparative analysis, M-Z interferometry is used to design the system. (3) SVM classification method based on binary tree is proposed to classify intrusion behavior. And the time-delay estimation method of two-channel interference signal is analyzed and studied. (4) the structure of fiber optic fence sensing early warning system based on M-Z interferometry is designed and implemented, and the design scheme of dividing the system fence host module into five layers information model is put forward. The feasibility of the system is analyzed. (5) the field test experiment of the fiber optic fence sensor warning system is carried out, and the test results show that, The fiber optic fence sensing early warning system based on M-Z interferometry has accurate alarm ability for intrusion behavior.
【学位授予单位】：贵州大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP277;TN253

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