【作者】 王陆林；

【导师】 蒋朝根；

【作者基本信息】 西南交通大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着计算机技术、微电子技术、多媒体技术和网络通信技术的飞速发展,嵌入式视频监控技术也得到了迅猛的发展。目前比较流行的是数字视频监控系统,它正逐步取代传统模拟视频监控系统,而成为视频监控的主流。在无线网络日益发展的今天,无线视频监控系统更具有无可比拟的优越性,它克服了有线网络存在的布线困难、不易扩展、安装周期长等缺点,而为更多的用户所青睐。本文采用总线接口的802.11g无线基带芯片WT6104CLVG,设计了一个基于802.11g无线局域网技术,S3C2410处理器和嵌入式Windows CE实时操作系统的无线视频监控终端系统,能提供54Mbps的数据传输率,为大容量视频数据的传输提供了高速传输通道。该无线视频监控终端可通过无线AP方便地接入无线局域网和有线局域网。鉴于高精度实时视频信息量巨大,传输前需要经过编码的问题,本系统采用MPEG-4专用编码芯片IME6400对采集到的数字视频进行编码,然后通过无线模块将生成的MPEG-4码流转发到无线局域网。本文包括硬件设计和软件开发两大部分。硬件设计包括主控模块、视频采集与编码模块和无线模块的设计。软件开发包括基于Windows CE操作系统板级支持包的移植、内核映像的创建、模块驱动程序和应用软件开发。更多还原

【Abstract】 With the rapid development of computer, micro-electronics, mutilmedia and network communications technology, embedded video monitoring technology has also made rapidly development. At present, digital video monitoring, replaceing traditional analog video monitoring system, becomes more popular. With the increasing development of wireless communications, wireless video monitoring has incomparable superiority. It overcomes many existing difficulties resulting from lineate network, such as, hard to distribute network wires, difficult to spread and long life cycle installation, etc. Therfore, it becomes favor to more users.This paper is to design a wireless video monitoring system terminal based on 802.11g wireless LAN technology, S3C2410 processor and embedded Windows CE real-time operation system by adopting 802. 11g wireless LAN bandbase controller WT6104CLVG of Memory Interface,transmission rate can reach 54Mbps which provides a high-spreed transmission channel for the video information transmission. The wireless video monitoring terminal can easily access wireless LAN and wired LAN by wireless AP(Access Point).Whereas the tremendous amount of high-precision real-time video information, it needs to compress coding prior to transmission. The system designed in this paper, using MPEG4 encoding chip IME6400 to compress and encode the acquisition of the digital video and MPEG4 video stream is generated and then transferred to wireless LAN by wireless module.In this paper, hardware design and software exploitation are included. Hardware design includes circuit design of mainly-controlled module, video capture, encoding module, and wireless transmission module. Software exploitation consists of transplant of BSP, the kernel image creation, the development of module driver and application software which are based on the Windows CE operating system.更多还原