基于Zigbee的无线数据传输系统设计

文档编号:JD1059  文档字数:20531,页数:48,

[摘要] 随着无线网络技术的快速发展,许多本来存在的网络服务逐渐走向成熟。近几年来,IEEE802.11无线局域网络的普遍以及IEEE802.16无线宽带网络的商业标准化都使得无线网络技术越来越重要,也有越来越多的相关应用和产品出现。目前,基于IEEE802.15.4协议的无线传感器网络,开始成为被广泛讨论和研究的课题之一。 IEEE802.15.4是一个新兴的无线通讯协议,它确定了低速个人区域网络标准,定义了物理层PHY和介质访问层MAC。Zigbee协议在PHY和MAC层的基础上对网络层NWK进行了具体定义,为应用层提供API函数。 Zigbee无线传感器网络将传感器技术、通讯技术和计算机技术结合在一起,具有信息采集、传输和处理的能力。传感器网络最初是由于军事需要而发展起来的,随着传感器网络技术的逐步发展,它的应用也越来越广泛,现在已从军事防御普及到社会的各个领域。本课题通过采用C51单片机和无线收发模块CC2420搭建了一个传感器网络。试验和应用结果表明,这种传感器网络成本低,工作稳定,可以用于一些小型任务中。为了进一步提高节点的处理能力和通信能力,未来还将做进一步改进。
 [关键词] ZigBee、IEEE802.15.4、CC2430、C51单片机、低速率、低功耗、无线传感器网络

Wireless Monitoring Network Design
                        Abstract
 With the quick growth of the wireless network technology, there are more and more existent network services trending to adopt wireless network technology. The popularization of IEEE 802.11 Wireless LAN and IEEE 802.16 Wireless Broadband Network, all make the wireless network technology become more and more important, futhur more, there are many relative technologies and products appeared. Following Bluetooth s rise and development, Wireless Personal Area Network (WAPN) also became popular. Therefore, one application of WPAN-Wireless Sensor Network,begins to be discussed widely.
 IEEE802.15.4 is a newpromoting wireless protocol,which defines the standard for wireless low-rate personal area network.It provides the definition interface for the application layer.
 Zigbee wireless sensor net work combines sensor technology,communication technology and computer technology together.It has the ability of collecting,transferring and processing data. Sensor network technology was firstly used in military systems.But now,it has been used in almost all of the fields with the development of sensor network technology.A kind of network constructed by using CMCU controller and CC2420 transceiver shows a good performance in low power comsumption and stability and is assumed well qualified to undertake some small tasks. The sensor network will be improved in the future aiming at the enhancement in data processing and communication areas.
 KEY Words: ZigBee、IEEE802.15.4、CC2430、51MCU、Low-data-rate、Low-power-comsumtion、Wireeless sensor network
 
 目  录
Ⅴ
中文摘要 Ⅵ
英文摘要 Ⅶ
前　　言 Ⅷ
1  理论基础 1
1.1 Zigbee协议概述 1
1.1.1 IEEE 802.15.4 1
1.1.2  网络配置 2
1.1.3   网络关联 2
1.1.4  端点、接口、群集、属性和配置文件 3
1.1.5  端点绑定 4
1.1.6  数据传输机制 5
1.2   Zigbee现状以及应用领域 5
1.2.1  Zigbee与Bluetooth协议的比较 6
1.2.2  无线传感器网络的应用 6
2 硬件设计 8
2.1  基于CC2420的RF卡结构以及模块 8
2.1.1  CC2420无线收发模块 8
2.1.2   CC2420内部结构 8
2.1.3   CC2420外围电路 9
2.1.4   RAM区的读写 10
2.2  IEEE 802.15.4调制方法 12
2.3  解调器、符号同步和数据判定 14
2.4  数据帧结构 15
2.5  4线串行配置和数据接口 16
2.5.1  引脚配置 16
2.5.3  状态字节 17
2.5.4  选通命令 17
2.5.6  FIFO存取 18
3  系统电路设计 19
3.1  微控制器接口和引脚描述 19
3.1.1  配置接口 19
3.1.2  访问方法 20
3.1.3  寄存器控制软件接口设计 21
4  测试 23
4.1  发送数据 23
4.2  数据接收 23
4.3  读数据 24
5  总结与展望 28
5.1  结论 28
5.2   展望 29
致  谢 31
附录（程序源代码及注释） 32

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