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1、摘要近年來(lái),隨著計(jì)算機(jī)網(wǎng)絡(luò)、通信技術(shù)和多媒體技術(shù)的發(fā)展,傳統(tǒng)監(jiān)控系統(tǒng)也不斷向著新的方向發(fā)展并不斷進(jìn)行更新。論文針對(duì)公安系統(tǒng)的某些特殊應(yīng)用場(chǎng)合,提出了一種基于嵌入式系統(tǒng)技術(shù)和現(xiàn)有GPRS網(wǎng)絡(luò)資源的遠(yuǎn)程無(wú)線視頻監(jiān)控系統(tǒng)的設(shè)計(jì)方案。論文詳細(xì)闡述了基于ARM的遠(yuǎn)程監(jiān)控系統(tǒng)的設(shè)計(jì)思想,重點(diǎn)介紹了監(jiān)控終端的開(kāi)發(fā)和研制。首先將攝像頭采集到的模擬視頻信號(hào)進(jìn)行A/D轉(zhuǎn)換,再通過(guò)BF533處理器進(jìn)行圖像壓縮,經(jīng)過(guò)圖像壓縮的視頻信號(hào)再通過(guò)SPI傳送到主控ARM處理器S3C2410來(lái)完成視頻數(shù)據(jù)的無(wú)線網(wǎng)絡(luò)發(fā)送。通過(guò)MC55GPRS模塊接入GPRS網(wǎng)絡(luò),將視頻不斷的發(fā)給遠(yuǎn)端的監(jiān)控中心。對(duì)嵌入式操作系統(tǒng)進(jìn)行了分析與論述
2、。最后對(duì)研究?jī)?nèi)容和系統(tǒng)特點(diǎn)進(jìn)行了總結(jié),并指出進(jìn)一步研究的方向。關(guān)鍵詞:嵌入式技術(shù)GPRSARM無(wú)線視頻監(jiān)控 ABSTRACTWiththerapiddevelopmentofthecomputernetworkandcommunicationtechnologyandmultimediatechnology,traditionalmonitoringsystemshavegreatlydevelopedtowardsanewdevelopingdirectiontheseyears.Forsomespecialapplicationsinthepublicsecuritysystem,wep
3、resentedamethodtodesigntheremotewirelessvideomonitoringsystem,whichisbasedonembeddedsystemstechnologyandtheexistingGPRSnetworkresources.ThisthesiselaboratedthedesignofremotemonitoringsystembasedonARM,andhighlightedtheresearchanddevelopmentofmonitoringdevices.First,thecameracaptureanalogvideoandsend
4、ittotheA/Dconvertmodule,thenthroughtheBF533processorforimagecompression,andthroughSPI,thecompressedvideosignalsweresenttotheARMprocessorS3C2410tosendvideodatabythewirelessnetwork.ThroughMC55GPRSmoduletoconnectGPRS,thevideocontinuetobegivenaremotemonitoringcenter.Theembeddedoperatingsystemareanalyze
5、danddiscussed.Finally,thepapersummarizesthemainresearchcontentsandthefeaturesofthesystem,andthenindicatestheworktobedoneinthefuture.Keywords:EmbeddedtechniqueGPRSARMWirelessvideomonitoring摘要1ABSTRACT2第一章緒論51.1視頻監(jiān)控技術(shù)的發(fā)展51.2無(wú)線傳輸技術(shù)的發(fā)展61.3課題背景、研究意義7第二章系統(tǒng)設(shè)計(jì)相關(guān)技術(shù)介紹82.1GPRS技術(shù)82.1.1GPRS的特點(diǎn)82.1.2GPRS網(wǎng)絡(luò)結(jié)構(gòu)與主要接
6、口功能92.1.3移動(dòng)用戶接入GPRS網(wǎng)絡(luò)102.1.4GPRS網(wǎng)絡(luò)與外部網(wǎng)絡(luò)互聯(lián)112.1.5GPRS撥號(hào)的實(shí)現(xiàn)122.2嵌入式技術(shù)142.2.1嵌入式系統(tǒng)的特點(diǎn)142.2.2嵌入式微處理器152.2.3嵌入式操作系統(tǒng)簡(jiǎn)介152.2.4嵌入式操作系統(tǒng)的選取16第三章系統(tǒng)總體方案設(shè)計(jì)183.1系統(tǒng)總體硬件設(shè)計(jì)183.1.1硬件設(shè)計(jì)方案論證183.3.2總體硬件設(shè)計(jì)193.3系統(tǒng)總體軟件設(shè)計(jì)19第四章系統(tǒng)主要硬件平臺(tái)設(shè)計(jì)224.1A/D轉(zhuǎn)換模塊224.1.1芯片管腳功能介紹224.1.2芯片功能與特點(diǎn)234.2MPEG-4圖像壓縮模塊244.2.1MEPG-4視頻壓縮算法244.2.2BF53
7、3圖像壓縮芯片及其外圍電路設(shè)計(jì)264.3嵌入式平臺(tái)284.3.1嵌入式微處理器S3C2410A284.3.2S3C2410A外圍接口設(shè)計(jì)304.4GPRS無(wú)線數(shù)據(jù)傳輸模塊31第五章嵌入式操作系統(tǒng)μC/OS-Ⅱ335.1μC/OS-Ⅱ操作系統(tǒng)簡(jiǎn)介335.2μC/OS-Ⅱ在S3C2410上的移植條件分析335.3與μC/OS-Ⅱ移植相關(guān)的ARM體系介紹345.4μC/OS-Ⅱ在S3C2410上的移植365.4.1