摘 要
介紹基于ARM微控制器的傳感器網(wǎng)絡(luò)節(jié)點(diǎn)設(shè)計(jì)方案。給出了以ARM7系列LPC2214芯片為核心的硬件設(shè)計(jì)的原理框圖，詳細(xì)闡述了紅外傳感電路、射頻通訊電路、外圍接口電路的設(shè)計(jì)和數(shù)據(jù)傳輸流程。該傳感器節(jié)點(diǎn)具有配置簡(jiǎn)單、擴(kuò)展方便、可靠性高的特點(diǎn)。傳感器網(wǎng)絡(luò)可實(shí)現(xiàn)數(shù)據(jù)的采集量化、處理融合和傳輸應(yīng)用，它是目前信息領(lǐng)域的一個(gè)熱點(diǎn)，學(xué)術(shù)界和產(chǎn)業(yè)界對(duì)它的學(xué)術(shù)價(jià)值和應(yīng)用前景非常看好。自動(dòng)配置的無(wú)線傳感器網(wǎng)絡(luò)可以在大范圍內(nèi)用于收集、處理和發(fā)布復(fù)雜的環(huán)境數(shù)據(jù)。無(wú)線傳感器網(wǎng)絡(luò)的基本組成單元是節(jié)點(diǎn)，節(jié)點(diǎn)是一個(gè)微型的嵌入式系統(tǒng)，它通過(guò)攜帶能量有限的電池或者利用自然條件等供電方式，實(shí)現(xiàn)對(duì)所采集或接收的數(shù)據(jù)進(jìn)行處理、存儲(chǔ)或發(fā)送。每個(gè)傳感器節(jié)點(diǎn)具有傳統(tǒng)網(wǎng)絡(luò)節(jié)點(diǎn)的終端和路由的雙重功能，除了進(jìn)行本地信息搜集和數(shù)據(jù)處理外，還要對(duì)其他節(jié)點(diǎn)轉(zhuǎn)發(fā)來(lái)的數(shù)據(jù)進(jìn)行存儲(chǔ)、管理和融合等處理，同時(shí)與其他節(jié)點(diǎn)協(xié)作完成一些特定任務(wù)。


關(guān)鍵詞：ARM：微處理器LPC2214；無(wú)線傳感器網(wǎng)絡(luò)；節(jié)點(diǎn)設(shè)計(jì)；






















ABSTRACT
Based on ARM micro controller introduced the sensor network node design scheme. Is given based on ARM7 series LPC2214 chips for the core of hardware design, this paper expounds the principle diagram infrared sensor circuit, rf communications circuit, peripheral interface circuit design and data transmission process. The sensor node configuration simple, expand with convenient, the reliability high characteristic. Sensor network can realize the data acquisition quantization, processing fusion and transmission applications, it is currently a hot, the information field of its academic and industrial academic value and application foreground is very promising. Automatically configured wireless sensor network can be used on a large scale collection, treatment and release complex environmental data. Wireless sensor network is the basic component unit nodes. The nodes is a miniature of the embedded system and it through carry energy limited battery or use of natural conditions, and to realize the power-supply modes, collected or receive data processing, storage or send. Each sensor node with traditional network node of the terminal and routing double function, in addition to local information collecting and processing data to other nodes, but also by the forwarding to data storage, management and fusion processing, with the other nodes to accomplish certain tasks.





Keywords: ARM: microprocessor LPC2214; Wireless sensor network; Node design;













目錄
第一章 緒論 - 1 -
1.1 引言 - 1 -
1.2 課題研究現(xiàn)狀 - 1 -
1.2.1國(guó)外無(wú)線傳感器網(wǎng)絡(luò)的研究現(xiàn)狀 - 1 -
1.2.2國(guó)內(nèi)無(wú)線傳感器網(wǎng)絡(luò)的研究現(xiàn)狀 - 2 -
1.2.3總體現(xiàn)狀分析 - 3 -
1.3 無(wú)線傳感器網(wǎng)絡(luò)的應(yīng)用 - 5 -
1.4 發(fā)展趨勢(shì) - 8 -
1.5 本文研究主要內(nèi)容 - 8 -
1.6本章小結(jié) - 9 -
第二章 系統(tǒng)總體方案設(shè)計(jì) - 10 -
2.1系統(tǒng)硬件組成 - 10 -
2.2 系統(tǒng)硬件器件 - 10 -
2.2.1 LPC2214 - 10 -
2.2.2 L298N - 13 -
2.2.3 nRF905 - 15 -
2.2.5 LED顯示器 - 19 -
第三章 系統(tǒng)硬件設(shè)計(jì) - 21 -
3.1 近距離紅外傳感器系統(tǒng)設(shè)計(jì) - 21 -
3.2 電機(jī)驅(qū)動(dòng)電路的設(shè)計(jì) - 22 -
3.3 無(wú)線射頻通訊電路的設(shè)計(jì) - 22 -
3.4 時(shí)鐘電路 - 23 -
3.5復(fù)位電路 - 24 -
3.6顯示電路 - 25 -
3.7報(bào)警電路 - 26 -
3.8本章小結(jié) - 27 -
第四章 系統(tǒng)軟件設(shè)計(jì) - 28 -
4.1 節(jié)點(diǎn)地址編碼與數(shù)據(jù)通訊格式設(shè)計(jì) - 30 -
4.2 節(jié)點(diǎn)數(shù)據(jù)傳輸流程設(shè)計(jì) - 31 -
4.3系統(tǒng)模擬 - 31 -
4.4本章小結(jié) - 33 -
第五章 結(jié)論及展望 - 34 -
參考文獻(xiàn) - 35 -
附錄 - 37 -
致謝 - 40 -