基于ZigBee技术的无线传感网系统在环境监测中的应用技术--组网技术研究
关键词：组网方案 ZigBee技术 NS2仿真
毕业设计说明书（论文）外文摘要
Title Wireless sensor network system based on ZigBee technology and its application in environmental monitoring technology - network technology research
Abstract
ZigBee technology is a new short—distance wireless communication technology,its physical layer (PHY) and medium access layer (MAC) defined in IEEE802.15.4，the ZigBee alliance set the standards for network layer(NWK) and application support layer(APS). ZigBee technology is characterized by its low data rate, low power consumption and network flexibility．With these characters ZigBee technology can be used on consumable electronic product，intelligent home control,building automation，industrial automation and so on．
Environmental issues in 21 Century has become increasingly prominent,Wireless sensor network technology has become increasingly mature, in order to real-time, effective on the specified environment monitoring, adopting the ZigBee technology on regional environmental indicators were read and transmission.
This topic mainly in wireless environment monitoring background, based on ZigBee technology, establish multi-hop wireless sensor network,through the simulation software, mainly on the ZigBee network node structure and networking process and try to explore and research, realize information by terminal router - coordination of transmission.
Key words network establishment Program，ZigBee technology,NS2
目 次
1 绪论 1
1.1 课题背景 1
1.2 选题意义 2
1.3 ZigBee技术国内外研究概况 3
1.4 论文内容及组织结构 5
2 ZigBee技术简介 6
2.1 IEEE802.15.4／ZigBee协议概述 6
2．2 ZigBee网络各层功能概述 7
2.2.1 物理层 7
2.2.2 MAC层 9
2.2.3 网络层 9
2.2.4 应用层 11
2.3 ZigBee网络拓扑结构 11
2.3.1 ZigBee中的设备 11
2.3.2 ZigBee网络拓扑结构 12
2.4 路由方式 13
3 基于ZigBee技术的环境WSN监测系统模型建立 14
3.1基于ZigBee的环境监测系统理论模型 14
3.2 基于ZigBee的环境监测系统原理 14
4 组网方案设计及仿真 16
4.1 网络初始化 16
4.2 节点通过协调器加入网络 18
4.3 节点通过已有节点加入网络 20
4.4 NS2仿真简介 22
4.5 结果分析 23
结 论 25
致 谢 26
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