基于WSN的家庭安防系统设计

发布时间：2018-01-07 23:09

本文关键词：基于WSN的家庭安防系统设计　出处：《哈尔滨理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着科学技术的进步和生活水平的提高,人们对住房安全性越加重视。稳定可靠的家庭安防系统被大众广泛所需求。目前已有的家庭安防系统存在布线冗杂,并且可靠性比较低、易产生虚报警、室内美观度降低等问题;在技术方面,要求有人进行实时监控,或用户回家后检查报警情况,造成了大量资源浪费和智能化不足。WSN家庭安防系统是一种利用现代电子信息技术和网络技术实现用户能够实时监控家庭情况的安防系统。论文设计的家庭安防系统应用S3C2440ARM9为中央处理器,通过WSN中的多种传感器检测家庭的状况,并通过中央处理器对信息处理、判断、融合,获得结论,将结论通过GSM网络发送到用户手机端。系统的硬件设计部分有各无线传感器模块、Zig Bee模块、中央处理器模块、移动通讯模块和执行模块。本系统软件设计主要包括:移动通讯模块程序设计;传感器检测程序设计;无线传感器节点时间和空间诊断算法设计;信息融合算法设计;报警及控制程序设计;以及Android手机家安防控制系统APP设计。本文利用WSN节点时间域和空间域故障诊断方法结合信息融合技术有效的降低了家庭发生事故风险和误报警率。首先分别对WSN节点时间域和空间域诊断方法进行研究,针对空间诊断对比标准进行了改进,提高空间诊断方法的诊断精确性。然后再对两种诊断结果进行信息融合,本文选择D-S理论判据作为融合技术,并且针对经典D-S理论判据对冲突证据的信息融合不足进行改进。通过MATLAB平台进行仿真实验,此算法能够实现家庭安防系统预警,并且有效地提高系统的准确性。最后,对整个系统进行调试。调试运行后分析可知,系统运行正常,可靠性提高。从而实现了对住宅的实时准确监控。
[Abstract]:With the progress of science and technology and the improvement of living standard, people pay more and more attention to the security of housing. The stable and reliable family security system is widely needed by the public. And the reliability is relatively low, easy to produce false alarm, indoor aesthetic degree reduced and other problems; On the technical side, someone is required to monitor in real time, or the user comes home to check the alarm. WSN home security system is a kind of security system which can realize the real-time monitoring of the family situation by using modern electronic information technology and network technology. The security system uses S3C2440ARM9 as the central processor. The state of the home is detected by a variety of sensors in WSN, and the information processing, judgment, fusion and conclusion are obtained by the CPU. The conclusion is sent to the user's mobile phone via the GSM network. The hardware design of the system includes the wireless sensor module Zig Bee module and the central processor module. Mobile communication module and execution module. The software design of this system mainly includes: mobile communication module program design; Sensor detection program design; Wireless sensor node time and space diagnosis algorithm design; Information fusion algorithm design; Alarm and control program design; And APP design of Android mobile phone home security control system. This paper uses WSN node time domain and space domain fault diagnosis method and information fusion technology to effectively reduce home accident risk and error. Alarm rate. Firstly, the time domain and space domain diagnosis methods of WSN nodes are studied respectively. The contrast criterion of spatial diagnosis is improved to improve the diagnostic accuracy of the spatial diagnosis method. Then the information fusion of the two diagnostic results is carried out. The D-S theory criterion is chosen as the fusion technology in this paper. And aiming at the classical D-S theory criterion, the information fusion of conflict evidence is improved. Through the simulation experiment on MATLAB platform, this algorithm can realize the home security early warning system. And effectively improve the accuracy of the system. Finally, the whole system is debugged. After debugging and running, it is known that the system is running normally and the reliability is improved. Thus, the real time and accurate monitoring of the residence is realized.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP277

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