基于Zigbee的無線數據傳輸系統設計

電子機電論文編號:JD1059  論文字數:20531,頁數:48,

 目  錄
Ⅴ
中文摘要 Ⅵ
英文摘要 Ⅶ
前　　言 Ⅷ
1  理論基礎 1
1.1 Zigbee協議概述 1
1.1.1 IEEE 802.15.4 1
1.1.2  網絡配置 2
1.1.3   網絡關聯 2
1.1.4  端點、接口、群集、屬性和配置文件 3
1.1.5  端點綁定 4
1.1.6  數據傳輸機制 5
1.2   Zigbee現狀以及應用領域 5
1.2.1  Zigbee與Bluetooth協議的比較 6
1.2.2  無線傳感器網絡的應用 6
2 硬件設計 8
2.1  基于CC2420的RF卡結構以及模塊 8
2.1.1  CC2420無線收發模塊 8
2.1.2   CC2420內部結構 8
2.1.3   CC2420外圍電路 9
2.1.4   RAM區的讀寫 10
2.2  IEEE 802.15.4調制方法 12
2.3  解調器、符號同步和數據判定 14
2.4  數據幀結構 15
2.5  4線串行配置和數據接口 16
2.5.1  引腳配置 16
2.5.3  狀態字節 17
2.5.4  選通命令 17
2.5.6  FIFO存取 18
3  系統電路設計 19
3.1  微控制器接口和引腳描述 19
3.1.1  配置接口 19
3.1.2  訪問方法 20
3.1.3  寄存器控制軟件接口設計 21
4  測試 23
4.1  發送數據 23
4.2  數據接收 23
4.3  讀數據 24
5  總結與展望 28
5.1  結論 28
5.2   展望 29
致  謝 31
附錄（程序源代碼及注釋） 32

[摘要] 隨著無線網絡技術的快速發展,許多本來存在的網絡服務逐漸走向成熟。近幾年來,IEEE802.11無線局域網絡的普遍以及IEEE802.16無線寬帶網絡的商業標準化都使得無線網絡技術越來越重要,也有越來越多的相關應用和產品出現。目前,基于IEEE802.15.4協議的無線傳感器網絡,開始成為被廣泛討論和研究的課題之一。 IEEE802.15.4是一個新興的無線通訊協議,它確定了低速個人區域網絡標準,定義了物理層PHY和介質訪問層MAC。Zigbee協議在PHY和MAC層的基礎上對網絡層NWK進行了具體定義,為應用層提供API函數。 Zigbee無線傳感器網絡將傳感器技術、通訊技術和計算機技術結合在一起,具有信息采集、傳輸和處理的能力。傳感器網絡最初是由于軍事需要而發展起來的,隨著傳感器網絡技術的逐步發展,它的應用也越來越廣泛,現在已從軍事防御普及到社會的各個領域。本課題通過采用C51單片機和無線收發模塊CC2420搭建了一個傳感器網絡。試驗和應用結果表明,這種傳感器網絡成本低,工作穩定,可以用于一些小型任務中。為了進一步提高節點的處理能力和通信能力,未來還將做進一步改進。
 [關鍵詞] ZigBee、IEEE802.15.4、CC2430、C51單片機、低速率、低功耗、無線傳感器網絡

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