（毕业论文）嵌入式监控系统的设计与实现.doc

嵌入式监控系统的设计与实现摘 要 本文分析了一种基于嵌入式Linux的网络视频监控系统。系统以嵌入式Linux为核心平台，通过嵌入式平台建立的基于TCP/IP协议的视频服务器，将usb摄像头采集来的图像数据压缩后，经过网络传输，完成对监控现场的网络视频监控任务。 论文首先阐述了嵌入式网络视频的监控系统的发展状况，以及整体构建，然后介绍了嵌入式Linux操作系统以及各种软件开发平台，分析了主要的编程技术以及如何搭建交叉编译平台，并对在Linux操作系统下的USB驱动程序进行了研究。 本文重点讨论了图像采集、编码和网络通信程序的设计原理与实现。最后以提供的例子进行了系统整体测试，并提出了进一步开发设想。 本文的研究结果具有较大的工程实际意义，并对基于IP技术的各种视频通信应用具有一定的参考价值。 关键词： 嵌入式; Linux; 视频监控; TCP/IP; QT;  Designand implementation of embedded monitoring system Abstract This paper analyzes a network video monitoring system based on embedded Linux. The system uses embedded Linux as the core platform, video server based on TCP/IP protocol is established through the embedded platform, the image data collected by the USB camera to compression, through the network transmission, network video monitoring task of monitoring the scene. This paper first describes the development status of embedded network video monitoring system, as well as the overall construction, then introduced the embedded Linux operating system and software development platform, analyzed the main programming technology and how to build the cross compile platform, and in the Linux operating system under the USB driver program based on. This paper discussed the design principle and implementation of image acquisition, coding and network communication program. Finally, in order to provide examples of the system is tested, and put forward the plan of further development. The results of this research have great practical significance, and the IP technology based on video communication application has some reference value. Keywords: embedded system; Linux; video; surveillance; TCP/IP; QT 目 录 摘 要 i Abstract ii 1.绪论 1 1.1 研究背景及现状 1 1.1.1 研究背景 1 1.1.2 视频监控的现状 1 1.2 研究目的和意义 2 1.3 本论文的主要工作 3 1.4 论文总体结构 3 2.硬件平台概述 4 2.1 硬件平台介绍 4 2.1.1 摄像头介绍 4 2.1.2 运行硬件平台介绍 5 2.2 软件平台介绍 5 2.2.1 Linux操作系统 5 2.2.2 QT 6 2.2.3 Vi编辑器 9 2.2.4 ARM交叉编译环境 10 3.V4L2详细介绍 12 3.1 V4L2概述 12 3.1.1什么是V4L2 12 3.1.2 V4L2的主要功能