基于嵌入式OpenWrt的无线视频监控系统的设计与实现

发布时间：2018-03-12 19:41

本文选题：嵌入式OpenWrt系统　切入点：视频监控　出处：《郑州大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着嵌入式技术、视频处理技术和网络技术的日益壮大,视频监控正往系统嵌入式的无线视频监控的方向发展。与传统视频监控系统相比,该系统具有体积小、运行稳定、可裁剪等优点,是将来视频监控领域一个很重要的发展方向。因此本文基于室内安全与无线WiFi视频传输技术,对嵌入式OpenWrt的无线视频监控系统进行了设计与实现。论文的主要工作如下:1、本文首先从视频监控系统的研究背景及意义出发,分析了国内外发展现状和应用前景,并对当前市场进行了调研;然后通过分析项目对功能和性能的需求,以及相关技术的可行性,提出了一种新的嵌入式OpenWrt无线视频监控的总体设计方案。2、本文采用以MIPS 24Kc为核心处理器的RT5350开发板为硬件平台,嵌入式OpenWrt路由器操作系统为软件开发平台,并且结合免驱USB摄像头、基于V4L2接口的Streamer-MJPEG视频服务器软件和WiFi技术,设计和实现了基于嵌入式OpenWrt的无线视频监控系统;在硬件方面采用模块化设计,其中包括:无线通信模块(硬件开发平台)、视频监控模块(USB摄像头)、客户端模块(手机/电脑)。在系统软件方面,搭建了OpenWrt系统,添加了LuCI Web界面,针对视频的采集编写了UVC和V4L2接口的驱动程序;在硬件平台中添加了用于视频采集和传输的基于V4L2接口的Streamer-MJPEG视频服务器软件,将V4L2接口中从摄像头获取的数据帧,以Web方式通过硬件平台组建的WiFi传输到客户端,用户只需要手机/电脑就能实现视频监控。3、测试结果显示,整个系统运行稳定,手机和电脑都能连接到系统WiFi信号,通过手机上的视频监管软件和电脑上的浏览器都可以清晰流畅的观看监控视频。本文所设计的嵌入式无线视频监控系统实现了项目预期目标。
[Abstract]:With the development of embedded technology, video processing technology and network technology, video surveillance is developing towards embedded wireless video surveillance system. Compared with traditional video surveillance system, the system is small in size and stable in operation. The advantages of tailoring are a very important development direction in the field of video surveillance in the future. Therefore, this paper based on indoor security and wireless WiFi video transmission technology, This paper designs and implements the wireless video surveillance system of embedded OpenWrt. The main work of this paper is as follows: 1. Firstly, from the research background and significance of the video surveillance system, this paper analyzes the development status and application prospect of the video surveillance system at home and abroad. And the current market research, and then through the analysis of the project requirements for function and performance, and the feasibility of related technologies, In this paper, a new design scheme of embedded OpenWrt wireless video surveillance is proposed. In this paper, the RT5350 development board with MIPS 24Kc as the core processor is used as the hardware platform, and the embedded OpenWrt router operating system is used as the software development platform. The wireless video surveillance system based on embedded OpenWrt is designed and implemented based on the Streamer-MJPEG video server software and WiFi technology based on V4L2 interface. It includes: wireless communication module (hardware development platform, video monitor module, USB camera, client module (mobile phone / computer, etc.). In system software, OpenWrt system is built, and LuCI Web interface is added. The driver of UVC and V4L2 interface is written for video acquisition, and the Streamer-MJPEG video server software based on V4L2 interface is added to the hardware platform. The WiFi constructed by the hardware platform of Web is transmitted to the client. The user only needs the mobile phone / computer to realize the video surveillance. The test results show that the whole system is running stably, and the mobile phone and computer can be connected to the system WiFi signal. The video monitoring software on the mobile phone and the browser on the computer can watch the video clearly and fluently. The embedded wireless video monitoring system designed in this paper achieves the expected goal of the project.
【学位授予单位】：郑州大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN948.6

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