【正文】 could collect the GPS and picture information about the automobile and send it to the monitoring center .Making use of the information, monitoring center strengthens its supervision ability to track automobile, The design makes full use of resources on ARM S3C2410X processor and implements vehicle monitoring functions at a lowcost but more conveniently. Keywords： GPS positioning technology, GPRS munications technology, vehicle monitoring devices, image acquisition 本科畢業(yè) 論文 (設(shè)計(jì) ) 3 目 錄 第一章 緒論 .............................................................................................................................................................................. 1 課題研究的背景及意義 ...............................................................................................................................................1 汽車監(jiān)控的國(guó)內(nèi)外現(xiàn)狀 ...............................................................................................................................................2 課題研究的目的 ............................................................................................................................................................2 第二章 GPS、 GPRS及 USB接口技術(shù)及原理 ................................................................................................................... 4 GPS 導(dǎo)航技術(shù) .................................................................................................................................................................4 GPS 系統(tǒng)組成 ........................................................................................................................................................ 4 GPS 定位原理 ........................................................................................................................................................ 6 GPRS 網(wǎng)絡(luò)技術(shù) ...........................................................................................................................................................7 GPRS 網(wǎng)絡(luò)技術(shù)特點(diǎn) ......................................................................................................................................... 8 GPRS 系統(tǒng)構(gòu)成 .................................................................................................................................................. 8 GPRS 技術(shù)在遠(yuǎn)程監(jiān)控系統(tǒng)中的應(yīng)用 ........................................................................................................... 10 USB 接口技術(shù) ..............................................................................................................................................................10 USB 簡(jiǎn)介 ............................................................................................................................................................... 10 USB 的基本特點(diǎn) ................................................................................................................................................. 11 第三章 系統(tǒng)總體設(shè)計(jì)方案 ................................................................................................................................................. 12 系統(tǒng)工作原理及需求 ..................................................................................................................................................12 車載監(jiān)控終端硬件設(shè)計(jì)方案 ....................................................................................................................................13 第四章 系統(tǒng)硬件平臺(tái)構(gòu)成 ................................................................................................................................................. 15 主控制模塊 (ARM9) ....................................................................................................................................................16 USB 接口 ............................................................................................................................................................... 17 UART 接口 ............................................................................................................................................................ 18 通用 I/O 口 ........................................................................................................................................................... 19 I2S 音頻接口 ..................................................................................................................................................... 19 GPS 模塊 .....................................................................................................................................................................19 GPRS 通訊模塊 .........................................................................................................................................................21 OV511 攝像頭 ............................................................................................................................................................23 基于 JPEG 庫(kù)的圖像壓縮 .........................................................................................................................................24 結(jié)論 ........................................................................................................................................................................................... 26 致謝 ........................................................................................................................................................................................... 27 參考文獻(xiàn) .................................................................................................................................................................................. 28 內(nèi)蒙古大學(xué)本科畢業(yè) 論文 (設(shè)計(jì) ) 第 1 頁 1 第一章 緒論 隨著經(jīng)濟(jì)的發(fā)展，社會(huì)的進(jìn)步，汽車已經(jīng)成為當(dāng)今最為普遍，最為實(shí)用的交通工具，是日常生活生產(chǎn)中的重要組成部分。 隨著嵌入式計(jì)算機(jī)處理能力的提高，車載監(jiān)控系統(tǒng)逐漸轉(zhuǎn)向數(shù)字方式，主要用于監(jiān)測(cè)、記錄汽車在行駛中各種狀態(tài)和數(shù)據(jù)，在事故發(fā) 生時(shí)能收集音視頻資料。 本論文從以上背景出發(fā)，提出了一種基于 GPS 定位技術(shù)和 GPRS 網(wǎng)絡(luò)技術(shù)的