本文選題：S3C2440 + 無線傳輸��； 參考：《中北大學(xué)》2014年碩士論文

【摘要】：無線視頻傳輸系統(tǒng)廣泛應(yīng)用于安防、視頻會議及多媒體生活等領(lǐng)域，其主要特點是信號數(shù)據(jù)量大、實時性強(qiáng)、靈活方便，已成為當(dāng)前移動通信技術(shù)的重要產(chǎn)業(yè)。常規(guī)的視頻傳輸技術(shù)存在視頻圖像質(zhì)量差，傳輸容量小，傳輸速度慢等缺點。本文以ARM9作為核心控制器，對基于ARM9的無線視頻傳輸系統(tǒng)進(jìn)行研究。論文主要工作如下： 1.設(shè)計了基于ARM9的無線視頻傳輸系統(tǒng)的硬件電路，該硬件系統(tǒng)的主要功能是完成視頻圖像采集和傳輸，主要包括：S3C2440核心控制電路、電源電路、LCD顯示電路、USB攝像頭接口電路和GPRS通信模塊接口電路。 2.進(jìn)行了無線視頻傳輸系統(tǒng)的軟件設(shè)計，完成了LINUX操作系統(tǒng)的內(nèi)核移植，根文件系統(tǒng)制作和USB視頻采集模塊、GPRS通信模塊、LCD觸摸屏設(shè)備等硬件模塊的驅(qū)動。 3.針對傳統(tǒng)圖像壓縮算法存在嚴(yán)重失真的問題，，對H.264圖像壓縮算法進(jìn)行了研究，該算法利用熵編碼技術(shù)解決了圖像壓縮慢和失真嚴(yán)重的問題，實現(xiàn)了圖像的高清傳輸。 本論文以嵌入式應(yīng)用系統(tǒng)為構(gòu)架，在以ARM9系列S3C2440為處理器的嵌入式硬件系統(tǒng)平臺上開發(fā)和移植了無線視頻傳輸系統(tǒng)。該系統(tǒng)經(jīng)過測試可以實現(xiàn)圖像的高清晰、快速以及近無損傳輸。并且該系統(tǒng)具有良好移植性，亦可用于同類產(chǎn)品中。
[Abstract]:Wireless video transmission system is widely used in the field of security, video conference and multimedia life. The main characteristics of wireless video transmission system are the large amount of signal data, real-time, flexibility and convenience, which has become an important industry of current mobile communication technology. The conventional video transmission technology has the disadvantages of poor video image quality, low transmission capacity and slow transmission speed. In this paper, ARM9 is used as the core controller to study the wireless video transmission system based on ARM9. The main work of this paper is as follows: 1. The hardware circuit of the wireless video transmission system based on ARM9 is designed. The main function of the hardware system is to complete the video image acquisition and transmission, mainly including the core control circuit of: S3C2440. Power supply circuit LCD display circuit USB camera interface circuit and GPRS communication module interface circuit. 2. The software design of wireless video transmission system is carried out. The kernel transplantation of Linux operating system, the manufacture of root file system and the driver of USB video acquisition module, GPRS communication module and LCD touch screen device are completed. 3. In order to solve the problem of serious distortion in traditional image compression algorithm, the H.264 image compression algorithm is studied. The entropy coding technique is used to solve the problem of slow image compression and serious distortion, and the high-definition image transmission is realized. In this paper, a wireless video transmission system is developed and transplanted on the embedded hardware platform with ARM9 series S3C2440 as the processor. After testing, the system can achieve high definition, fast and near-lossless transmission. And the system has good portability, can also be used in similar products.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN919.8

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 陳文洪;嚴(yán)正楷;;H.264視頻編碼在數(shù)碼監(jiān)控系統(tǒng)中的應(yīng)用研究[J];安防科技;2007年06期

2 崔玉斌;蔡安妮;;H.264幀間模式選擇新算法[J];北京郵電大學(xué)學(xué)報;2007年04期

3 翟戰(zhàn)強(qiáng),蔡少華;基于GPRS/GPS/GIS的車輛導(dǎo)航與監(jiān)控系統(tǒng)[J];測繪通報;2004年02期

4 韓崢;唐昆;;H.264去塊濾波快速算法的設(shè)計與實現(xiàn)[J];電視技術(shù);2006年06期

5 吳萌;劉波;;U-Boot分析與移植到Y(jié)LP2410開發(fā)平臺的方法[J];電子器件;2009年04期

6 潘偉森;鄧胡濱;劉小東;;嵌入式Linux在S3C2410上的移植分析[J];儀器儀表用戶;2008年02期

7 郭知明;楊世鳳;;基于GPRS技術(shù)的城市管網(wǎng)監(jiān)測系統(tǒng)的研究[J];國外電子測量技術(shù);2009年12期

8 文治洪;胡文東;李曉京;王濤;;基于PL2303的USB接口設(shè)計[J];電子設(shè)計工程;2010年01期

9 程保煒,劉文珂;嵌入式系統(tǒng)及其開發(fā)應(yīng)用概述[J];長江大學(xué)學(xué)報(自科版);2004年04期

10 傅中君;嵌入式GPRS無線通信模塊的設(shè)計與實現(xiàn)[J];計算機(jī)工程與應(yīng)用;2004年14期

本文編號：2036077