基于無線傳感器網(wǎng)絡的機械參量測試系統(tǒng)設計（本科畢業(yè)設計）

摘    要

隨著傳感器技術、嵌入式計算技術、分布式信息處理技術和通信技術的迅速發(fā)展 ,無線傳感器網(wǎng)絡應運而生。
節(jié)點的系統(tǒng)設計技術是組建無線傳感器網(wǎng)絡的關鍵技術之一。本文研究了無線傳感器網(wǎng)絡節(jié)點的系統(tǒng)設計與實現(xiàn)方法。根據(jù)無線傳感器網(wǎng)絡的特點提出了節(jié)點系統(tǒng)設計的重要指標 ,并根據(jù)這些指標對節(jié)點的各個子系統(tǒng)包括數(shù)據(jù)處理單元、無線通信模塊、電源管理模塊、數(shù)據(jù)采集模塊等進行了具體地結構設計和硬件選型，同時對整個系統(tǒng)進行了軟件設計。
總之，無線傳感器網(wǎng)絡構成的基本元素是網(wǎng)絡節(jié)點 ,這些節(jié)點集信息采集、數(shù)據(jù)處理和無線通訊等諸多功能于一體 ,具有無線通信、數(shù)據(jù)采集和處理、協(xié)同合作等功能。網(wǎng)絡節(jié)點是傳感器網(wǎng)絡的基礎 ,設計低成本、低功耗、多功能的微型無線傳感器網(wǎng)絡節(jié)點機是無線網(wǎng)絡技術領域的核心問題之一。
關鍵詞：無線傳感器網(wǎng)絡，節(jié)點，電源管理，無線通信，數(shù)據(jù)處理，數(shù)據(jù)采集
 

ABSTRACT

Recent advances in sensing techniques, embedded computing techniques, distributed information processing techniques and communication techniques have enabled t he development of wireless sensor networks.
System design technology of nodes is one of the key technologies to build wireless sensor networks (WSN). Design and implementation of the nodes of WSN were studied in this paper. The guide line s of system design of the node s we re brought forward based on the analysis of the characteristics of WSN, then system structure and hardware components selection were determined. Further, hardware design of node board and sensor board was expounded respectively.
In short, wireless sensor networks constitute the basic elements of the network nodes, these node-information collection, data processing and wireless communications, and many other functions in one, with wireless communications, data acquisition and processing, collaboration, and other functions. Network node sensor network is the basis for the design of low-cost, low-power, micro-wireless sensor network nodes for wireless network technology is one of the core issues.
Key words：wireless sensor networks, nodes, Power management, wireless communications, data processing, data acquisition.
 

 
目錄
摘    要 III
ABSTRACT IV
目錄 V
1緒論 1
1.1無線傳感器網(wǎng)絡的組成及特點 1
1.1.1無線傳感器的組成 1
1.1.2 無線傳感器網(wǎng)絡的特點 1
1.2無線傳感器網(wǎng)絡的關鍵問題 2
1.2.1系統(tǒng)節(jié)能 2
1.2.2網(wǎng)絡內(nèi)部通信 2
1.2.3高效的無線傳感器網(wǎng)絡結構 2
1.2.4容錯性和可擴展性 2
1.3節(jié)點總體設計 2
1.4目的及意義 3
1.5本文的主要內(nèi)容 4
2數(shù)據(jù)處理單元設計 5
2.1數(shù)據(jù)處理單元總體設計 5
2.2 LPC2103微處理器特點 6
2.3結構概述 7
2.4管腳描述 9
2.5小結 13
3無線通信單元設計 14
3.1無線通信單元總體設計 14
3.2 CC2420芯片主要性能特點 15
3.3芯片內(nèi)部結構 15
3.4電路分析 16
3.5實際系統(tǒng)需要做以下配置： 17
3.6小結 18
4電源管理模塊設計 19
4.1充電及狀態(tài)顯示模塊 19
4.2芯片DS2770模塊分析 20
4.2.1DS2770的特點 20
4.2.2芯片DS2770引腳及其功能 21
4.2.3DS2770電路分析 21
4.3芯片DS2720模塊分析 23
4.3.1DS2720的特點 23
4.3.2芯片DS2720引腳及其功能 23
4.3.3DS2720電路分析 23
4.4實時時鐘RTC 24
4.5小結 25
5數(shù)據(jù)采集模塊設計 26
5.1傳感器的選擇 26
5.2節(jié)點板與傳感器板的連接 27
5.3外部接口 27
5.4小結 27
6軟件設計 29
7結論 31
參 考 文 獻 32