【正文】 These electronic devices undoubtedly related to the design of these areas of security, which the monitoring equipment, the cost, stability and performance of all three areas a higher demand. The system of background are mainly based on existing video surveillance system inadequate, aimed at reducing the cost and improve system performance. It uses the low price of Samsung39。 同時(shí)，它的一個(gè)最大的特點(diǎn)是可以在終端上進(jìn)行錄像，而不需要通過 PC 機(jī)，這樣既適合低功耗的場(chǎng)合，又可以減少的系統(tǒng)的復(fù)雜性。為了進(jìn)一步降低成本，減少人力的投資，以及更集中、 更方便的掌握現(xiàn)場(chǎng)情況，許多場(chǎng)合都采用了電子監(jiān)控設(shè)備，如辦公室，發(fā)電站，機(jī)場(chǎng)，海關(guān)等等領(lǐng)域。而這些電子設(shè)備的設(shè)計(jì)無疑涉及到這些領(lǐng)域的安全性，這就對(duì)監(jiān)控設(shè)備的成本，穩(wěn)定性，以及性能三方面都提出了更高的要求。 圖像采集終端則采用性價(jià)比很高的 USB 型攝像頭，在市場(chǎng)上很容易買到，同時(shí)，USB 型攝像頭具有很好的通用性，驅(qū)動(dòng)程序豐富，可以減少代碼的編寫。s application processor S3C2410, the use of software and audio and video codecs, to achieve 250 Kbps to 350 Kbps encoding and digital transmission work velocity, and 160 *128 and 320 * 240 two display resolution, Can be a good video surveillance. At the same time, one of its greatest feature is the terminal on the video, rather than through a PC, this is suitable for low power consumption of the occasion, can also reduce the plexity of the system. Image Collection Terminal is a high costeffective use of the USBbased camera, in the market is readily available, at the same time, USBbased camera has a good GM, driver rich, can reduce the preparation of the code. Since this system uses standard Ether transmission, the system supports an unlimited number of terminal cascade, the region can easily monitor the conduct of expansion. In a word, this system uses ARM9 processor, USB camera, standard Ether transmission, to achieve a good performance of the video surveillance system. Keyword:Embedded。Video Surveillance 畢業(yè)論文 目 錄 引言 .........................................................................................................6 2 緒論 .....................................................................................................7 課題研究的目的和意義 ..................................................................................... 7 3 網(wǎng)絡(luò)監(jiān)控系統(tǒng)概述 ..............................................................................8 系統(tǒng)簡(jiǎn)介 ............................................................................................................. 8 系統(tǒng)組成 ............................................................................................................. 8 系統(tǒng)框圖 ............................................................................................................. 8 4 嵌入式系統(tǒng)簡(jiǎn)介 ................................................................................ 10 主流嵌入式操作系統(tǒng)的比 較 ........................................................................... 10 CE ........................................................................................................ 10 ................................................................................................................... 10 ...............................................................................................................11 常用的嵌入式處理器 ........................................................................................11 .....................................................................................................................11 .................................................................................................................... 12 .............................................................................................................. 12 5 ARM處理器 ....................................................................................... 13 ARM 構(gòu)架特點(diǎn) ............................................................................................... 13 ....................................................................................................... 13 ....................................................................................................... 13 狀態(tài) ....................................................................................................... 13 ............................................................................................... 13 ................................................................................................... 14 現(xiàn)有主流 ARM 處理器 .................................................................................. 15 S3C2410 .............................................................................................. 15 AT91RM9200 ........................................................................................... 16 OMAP............................................................................................................. 17 Xscale .......................................................................................................... 18 S3C2410 硬件設(shè)計(jì)要點(diǎn) .................................................................................. 19 ............................................................................................. 20 USB接口設(shè)計(jì) .................................................................................... 20 網(wǎng)絡(luò)接口電路設(shè)計(jì) ............................................................................ 20 6 嵌入式 Linux 開發(fā)步驟 ..................................................................... 22 GNU GCC 簡(jiǎn)介 ............................................................................................... 22 開發(fā)環(huán)境的搭建 ............................................................................................. 22 ............................................................................................ 22 畢業(yè)論文 ................................................................................................ 23 Linux內(nèi)核配置編譯 ....................................................................................... 23 .........................................................................