摘要近年来，随着城市化建设的不断进步，经济的飞速发展，我国的城市和农村都对 燃气的需求量快速增加。相应地，因为燃气泄漏而产生的一系列危害，如：燃气中毒， 燃气爆炸等事件也严重影响了居民的生命财产安全。所以，为了能够对城市燃气进行 有效监管，需要建立智能燃气监控系统。84531

本系统设计的硬件设备主要包括 Zigbee 芯片若干充当终端和协调器，Zigbee 底 板若干，亚克力外壳，天线，燃气检测传感器以及各类接线。能够对不同位置节点的 燃气管道是否发生气体泄漏与当前燃气浓度实施检测，并且能在 PC 机上观察了解到 各个检测点的实时浓度情况，当出现危险情况时，系统发出警报，以便户主能够第一 时间发现问题以及问题所在位置，为后续的解决问题提供宝贵的时间，尽最大可能的 减少和降低因为燃气泄漏然产生的各种损失。

本系统的设计简单，功能明确，操作方便，实用性好，通过无线传输技术完成了 对远程燃气管道的监控，更方便了对燃气管道的检测与报警，节省了人力物力，符合 当前生活节奏的要求，满足了社区居民的需求。

毕业论文关键词：单片机；Zigbee；无线传输技术；传感器

Abstract With the progressive urbanization construction improvement and rapid economy development, there is an increasing demand of gas in cities and countryside in China recently。 Correspondingly, it can be seen that gas leakage brings a series of hazards, such as gas poisoning and gas explosion, which have serious consequences for residential lives and property safety。 Therefore, in order to supervise urban gas effectively in a better, more convenient and easier way, intelligent gas monitoring system should be established。

In this paper, the intelligent gas monitoring system is mostly applied in urban and rural inpidual who living alone as well as completing monitoring situation for all  points of gas in a concentration range。 The hardware system mainly consists of a certain  number of Zigbee chips and Zigbee base plates, acrylic shells, aerials, smoke sensor sand all kinds of wiring。 They can fulfill the monitor for whether different places have gas leak in gas pipelines。 Moreover, we can observe real-time conditions through  personal computers。 Then the households are able to find problems and find out the trouble positions at the first time in that case。 It is a useful method to save time in subsequent problems solving and it can reduce the loss of gas leak as much as possible。

This system has simple design, clear functions, straightforward operations and practical performance。Wireless transporting can also achieve the distant monitor to gas pipeline,making monitoring gas convenient and saving the cost。Furthermore this system accords with requirement of the pace of life,satisfying citizens’ need。

Keywords： MCU；Zigbee；Wireless transporting；Senors

目录

第一章 绪论 1

1。1  课题背景及意义 1

1。2  国内外现状及存在问题 1

1。3  课题研究内容 2

1。4  文章组织结构 2

第二章 短距离的无线通信技术概述 4

2。1  无线通信技术简介 4

2。2  无线通信技术的特征优势 5

2。3  短距离无线通信的分类 5

2。4  各种短距离无线技术发展近况[8] 5

2。4。1 蓝牙技术