摘 要：近年来，计算机技术、自动化技术等科学技术迅猛发展，使融合了自动化控制系统、计算机网络系统和网络通讯技术于一体的网络化智能化的安防系统得到了成功应用。无线传感技术具有成本低、能耗小、无需布线、相互之间没有电气干扰等优点，极大的迎合了公众的节能，使用方便的需求心理。ZigBee技术成本低、功耗小，能够自动组网，自由嵌入各种设备，扩展性能较强，可以快速准确地检测故障并予以修复，优势明显。因此，本文在此基础上设计了一个基于ZigBee技术的安防系统。本文在Z-Stack 2。3。0-1。4。0版本的协议栈基础上修改，实现了通过zigbee终端模块采集温度和气体信息无线发送给协调器模块。协调器模块接收到信息后显示在液晶屏上同时通过串口发送到上位机方便管理员监控。如检测到易燃气体协调器会使蜂鸣器发出警报，达到声光报警的目的。91604

毕业论文关键词：安防，ZigBee技术，无线传感器网络，远程报警

ABSTRACT: In recent years, the rapid development of computer technology, automation technology, science and technology, the integrated automation control system, computer network system and network communication technology in the development of intelligent network security system has been successfully applied。Wireless sensor technology has many advantages, such as low cost, low energy consumption, no wiring, no interference between the electrical and other advantages。 It greatly caters to the public's energy saving and easy to use demand psychology。 The emerging ZigBee technology has the advantages of low cost, low power consumption, automatic networking, free embedding of various devices, strong expansion performance, fast and accurate fault detection and repair, and the advantages are obvious。 Therefore, on this basis, we design an intelligent security system based on ZigBee technology。 Based on the protocol stack of Z-Stack 2。3。0-1。4。0 version, this paper modifies the temperature and gas information collected by ZigBee terminal module and sends it to coordinator module wirelessly。 The coordinator module receives the information and displays it on the LCD screen, and sends it to the upper computer through the serial port, which is convenient for the administrator to monitor。 If the combustible gas detector is detected, the buzzer will make the buzzer alarm and achieve the purpose of sound and light alarm

KEY WORDS:intelligent security, ZigBee technology,wireless sensor network,remote alar 

目录

第一章 绪论 7

1。1课题背景及意义 7

1。2现有的安防系统的缺点 7

1。3基于ZIGBEE的安防系统的优点 8

1。4本文结构安排 8

第二章 ZIGBEE简介 9

2。1 ZIGBEE技术概述 9

2。2 ZIGBEE网络拓扑 9

2。3 ZIGBEE协议架构 11

2。3。1物理层 11

2。3。2介质接入控制子层 12

2。3。3网络层 12

第三章 安防传感网总体设计 13

3。1安防系统总体设计方案 13

3。2安防网络中硬件设计 13

3。2。1 单总线温度传感器DS18B20 13

3。2。2 气敏传感器MQ-2 14