基于433MHz和WiFi技术的无线智能锁系统

发布时间：2018-08-07 07:45

【摘要】：随着科学技术的不断发展,智能锁作为智能家居的重要组成部分,越来越受到人们的重视。在信息化的今天,在保障财产安全的同时,如何让门锁更加方便、智能化,已成为当前研究的热点。Wi Fi技术作为重要的无线通信技术,在移动终端占有率极高的今天,越来越受到人们的青睐。移动终端如Iphone,IPad通过WiFi无线信号与AP相连,为用户提供无线宽带服务。Wi Fi的优势在于几乎所有的移动终端都支持、传输速度快且普遍存在,是使用率最高的无线网络通信技术;其缺点是功耗高、信号穿透绕射能力差等,因而其不能完全满足无线智能锁系统的需求。433MHz频段为免申请的ISM频段,基于此频段开发的无线模块具有通信距离远、抗衰减能力好、信号穿透能力强等众多优点。本课题将结合WiFi技术和433MHz频段无线模块的优势,引入基于433MHz和WiFi技术的无线智能锁系统。本文首先对目前常用的通信技术进行介绍,并分析各自优缺点;然后根据系统要求,提出系统方案;接着对系统方案进行具体实现,包括通信模块软硬件的设计、移动终端的开发;最后对模块间通信、网络通信进行测试。在设计无线模块时重点介绍微控制器、射频收发芯片的选取,射频收发电路的设计,通信过程的分析及具体通信的实现。在开发客户端时,分别对PC客户端和Android客户端开发环境进行介绍,分析数据通信过程并结合具体界面对相应功能进行说明。本文设计的基于433MHz和WiFi技术的无线智能锁系统有效地利用了目前很普遍的移动终端,用户可通过移动终端一键开启门锁;可通过PC客户端实时监控门锁动作,对刷卡信息进行管理,可有效阻止不法分子的偷盗行为。
[Abstract]:With the development of science and technology, intelligent lock, as an important part of smart home, has been paid more and more attention. At the same time, how to make the door lock more convenient and intelligent has become the focus of current research. Wi Fi technology, as an important wireless communication technology, has a very high mobile terminal share today. People are getting more and more popular. Mobile terminals such as IP IP are connected to AP via WiFi wireless signal. The advantage of wireless broadband service. Wi Fi is that almost all mobile terminals are supported, and the transmission speed is fast and widespread, so it is the most widely used wireless network communication technology. Because of its high power consumption and poor signal penetration diffraction ability, it can not fully meet the requirement of wireless intelligent locking system. 433MHz band is the ISM band without application. The wireless module developed based on this band has long communication distance and good anti-attenuation capability. Strong signal penetration and many other advantages. Combining the advantages of WiFi and 433MHz wireless module, this paper introduces a wireless intelligent locking system based on 433MHz and WiFi technology. In this paper, we first introduce the commonly used communication technology, and analyze their advantages and disadvantages; then according to the system requirements, put forward the system scheme; then the specific implementation of the system, including the design of the software and hardware of the communication module, The development of mobile terminal; finally, the communication between modules, network communication test. In the design of wireless module, the microcontroller, the selection of RF transceiver chip, the design of RF transceiver circuit, the analysis of communication process and the realization of communication are emphasized. In the development of client, the development environment of PC client and Android client is introduced, the process of data communication is analyzed and the corresponding function is explained with concrete interface. The wireless intelligent lock system based on 433MHz and WiFi technology is designed in this paper. The wireless intelligent lock system can effectively utilize the mobile terminal, the user can open the door lock by one click of the mobile terminal, and the user can monitor the door lock action in real time through the PC client. The management of credit card information can effectively prevent the theft of illegal elements.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN92;TS914.211.7

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