【作者】 杨安玉；

【导师】 魏学业；

【作者基本信息】 北京交通大学 ， 交通信息工程及控制， 2008， 硕士

【摘要】 随着我国“平安城市”的建设，对各类公共场所安全要求越来越高。为了给公共场所提供一种安全的环境，并为各种公共场所提供一种有效的安全监控预防机制，本论文设计了一种基于H.264的网络视频监控系统。本论文的主要工作是针对目前国内安防监控市场的需求，采用了H.264视频压缩技术，完成了系统整体设计和系统测试。论文分析了目前国内视频监控系统的状况和特点，结合当前视频监控市场需求，确定了基于H.264的网络视频监控系统的功能和技术指标。考虑到系统的数字化和网络化及视频信息对网络带宽的影响，并结合网络视频监控系统对视频图像清晰度和流畅度的要求，系统视频编码采用了H.264的视频压缩标准，并对MPEG-4和H.264两种在视频监控系统中常用的视频压缩标准进行了分析比较。论文分析了模拟视频信号和数字视频信号的特点，基于H.264视频压缩算法，给出了网络视频监控系统的总体设计方法。本文给出了网络视频监控系统的总体硬件框图，分析了系统各个组成模块的硬件电路图，并分析了各个模块的功能。论文确定了使用服务器、客户端模式的软件架构，分析给出了软件实现框图，视频监控服务器和视频监控客户端的功能和软件流程图，并给出了系统实现原理。最后，对系统进行了实验测试。从实验检测结果分析，该系统设计达到了网络视频监控系统的要求。总之，该系统具有功能齐全、视频压缩率高、低功耗、系统易升级、操作方便简单、人机交互性能好等优点，完全能满足网络视频监控系统的要求。更多还原

【Abstract】 With the development of the Chinese "Green City" security demands are increasing on various public places. In order to provide a safe environment and effective prevention safety monitoring mechanism for various public places, the paper designed a network video monitoring system based on H.264. The paper’s main work is to design a video monitoring system based on H.264 to satisfy the requirement of video monitoring market in our country, in this system, the video monitoring system’s overall design is realized and system testing is made.The main characteristics of video monitoring system of our country are analyzed in the paper, and combined with the demand of video monitoring market; the video monitoring system’s function and technique parameter are studied and given in the paper, which is based on H.264.The H.264 video coding standard is used in the monitoring system design considering the influence of network bandwidth brought by the digital and network-based system. MPEG-4 and H.264 are compared and analysis in system, which are often used in network video monitoring system.The characteristics of the analog video signals and digital signals are analyzed in the paper. Video coding standard based the method of video monitoring system based on ARM and Network is given. The whole hardware of the video monitoring system is designed and realized, in the paper the hardware frame and the work principle of the modules, and the schematics of the modules.The system’s flow chart of main software, video monitoring system server, and video monitoring system client is given in the paper. The system’s principle is also given.In the end, the video monitoring system’s testing is made. We can see from the results that the system meets the demand of the parameter made in the design.In conclusion, the video monitoring system is multi-function, high compression ratio, low power, easy upgrades, easy operation, good interface and manageable. It can meet the demand of video monitoring system.更多还原