无线嵌入式家庭安防系统的设计与实现

发布时间：2018-04-05 17:08

本文选题：家庭安防　切入点：无线嵌入式　出处：《南京邮电大学》2017年硕士论文

【摘要】：随着科学技术及社会经济的飞速发展,人们的生活开始迈入全新的智能化时代。但是在享受智能化家居生活的同时,人们在家庭安防方面提出了一些亟待解决的问题,例如煤气泄漏,火灾隐患,入室盗窃等。为了减少此类事件的发生,进一步提高人们的生活品质,家庭安防系统应运而生。针对现有的家庭安防系统仍然存在搭建困难、成本高昂及操作不便等问题,本文设计并实现了一种低成本、低功耗且搭建起来十分方便的无线嵌入式家庭安防系统。该家庭安防系统主要由上位机和下位机组成。上位机主要包含Web网页端和安卓手机App,其主要功能是实现远程终端与家庭网关的通信。下位机主要包含家庭网关和无线节点,家庭网关采用搭载了OpenWrt系统的AR9331芯片作为核心处理器,无线节点主要包含ZigBee无线节点与315M无线节点。与目前普遍采用ZigBee作为无线节点相比,本文中采用两种无线节点相结合的方式减少了ZigBee的使用数量,从而降低了系统的成本。在安全性方面,本系统不仅采用多类型传感器实现了不同安全隐患的无死角实时监控,而且针对安全隐患的应急处理搭建了一键紧急按钮,即遇到突发情况用户可以远程一键关闭家庭总闸和煤气灶。除此之外,本系统还采用了白天在家、白天离家和夜间睡眠三种工作模式,三种模式之间可以自动切换。与目前普遍采用的单模式相比,三种模式的自动切换方式不仅降低了系统的功耗,而且给用户带来了方便。经过测试,本文设计和实现的家庭安防系统不仅完成了预期的设计要求,而且在安全性和实用性等方面都有了较为显著的提升,同时也为智能家庭安防产品的开发提供了一种新的参考依据和思路。
[Abstract]:With the rapid development of science and technology and social economy, people's life has entered a new intelligent era.However, while enjoying the intelligent home life, people put forward some urgent problems in family security, such as gas leakage, fire hidden danger, burglary and so on.In order to reduce the occurrence of such incidents and further improve the quality of life, the family security system came into being.In view of the existing home security system is still difficult to build, high cost and difficult to operate, this paper designs and implements a wireless embedded home security system with low cost, low power consumption and easy to build.The home security system is mainly composed of upper computer and lower computer.The main function of the upper computer is to realize the communication between the remote terminal and the home gateway.The lower computer mainly includes home gateway and wireless node. The home gateway uses AR9331 chip with OpenWrt system as the core processor. The wireless node mainly includes ZigBee wireless node and 315m wireless node.Compared with the general use of ZigBee as a wireless node, this paper uses two wireless nodes to reduce the number of ZigBee, thus reducing the cost of the system.In the aspect of security, the system not only uses multi-type sensors to realize the real-time monitoring without dead angle of different security hidden danger, but also builds a one-click emergency button for the emergency treatment of security hidden trouble.The user can close the home gate and gas stove by one click in case of emergency.In addition, the system also uses daytime home, daytime home and night sleep three working modes, the three modes can be automatically switched.Compared with the single mode which is widely used at present, the three modes not only reduce the power consumption of the system, but also bring convenience to the users.After testing, the home security system designed and implemented in this paper not only fulfilled the expected design requirements, but also significantly improved the safety and practicability of the system.At the same time, it provides a new reference and train of thought for the development of intelligent home security products.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU855;TU89

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