WEB远程视频监控智能报警系统的设计与实现

发布时间：2018-11-23 09:56

【摘要】：视频监控系统在当今社会各行各业得到了广泛的应用。尤其在敏感场合进行实时、全天候、智能化的监控对人民的生命、财产安全有着重要的意义。随着嵌入式技术和互联网技术的发展,具有网络功能的嵌入式视频监控技术迅速发展起来。本文以嵌入式硬件平台为基础,围绕具有智能报警功能的网络视频监控设备进行研究。具体内容如下： 1.设计了系统的总体框架,选用TQ2440开发板作为系统的硬件平台。通过优缺点的对比,选择U-Boot、 Linux操作系统作为系统的软件平台,并将其移植到TQ2440开发板中。制作了根文件系统,添加了对yaffs2、 nfs文件系统的支持。 2.研究了Linux内核自带的V4L2视频采集设备的驱动框架,完成了视频采集应用程序。同时完成了基于socket套接字的视频网络传输程序,设计了多客户端访问的同步机制。 3.介绍了嵌入式web服务器的工作原理和流程,移植boa服务器到硬件平台,使用html超文本语言和css级联样式表完成web服务器主页面的编写。同时在服务器主页面中嵌入基于JavaApplet技术的视频接收显示程序,实现了web客户端与嵌入式平台的视频传输以及在web网页中显示视频图像的功能。 4.改进了基于背景差法的运动目标检测算法,应用OpenCV开源计算机视觉库开发了运动目标检测应用程序。移植Madplay播放器,完成了报警应用程序。 5.对开发的整个系统进行测试,测试了系统的可行性。本文采用高性价比的嵌入式处理器作为硬件平台,实现了web远程视频监控系统,并当有运动目标出现时自动报警,具有一定的工程应用价值。
[Abstract]:Video surveillance system has been widely used in various industries. Especially in sensitive situations, real-time, all-weather, intelligent monitoring of people's lives, property security has an important significance. With the development of embedded technology and Internet technology, embedded video surveillance technology with network function has developed rapidly. Based on the embedded hardware platform, this paper focuses on the network video surveillance equipment with intelligent alarm function. The specific contents are as follows: 1. The overall frame of the system is designed, and the TQ2440 development board is chosen as the hardware platform of the system. By comparing the advantages and disadvantages, U-Boot and Linux operating systems are selected as the software platform of the system and transplanted to the TQ2440 development board. The root file system is made and the support for yaffs2, nfs file system is added. 2. The driver framework of V4L2 video capture device based on Linux kernel is studied, and the video capture application program is completed. At the same time, the video network transmission program based on socket is completed, and the synchronization mechanism of multi-client access is designed. 3. This paper introduces the working principle and flow of embedded web server, transplanting boa server to hardware platform, using html hypertext language and css cascading style sheet to write the main page of web server. At the same time, the video receiving and displaying program based on JavaApplet technology is embedded in the main page of the server, which realizes the video transmission between the web client and the embedded platform, and the function of displaying the video image in the web page. 4. The algorithm of moving target detection based on background difference method is improved, and the application program of moving target detection is developed by using OpenCV open source computer vision library. Transplant Madplay player, completed the alarm application. 5. The whole system is tested and the feasibility of the system is tested. In this paper, the embedded processor with high performance-price ratio is used as the hardware platform to realize the remote video surveillance system of web, and it can alarm automatically when the moving target appears, so it has certain engineering application value.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TP277

【参考文献】