物联网视频监控系统关键技术研究

发布时间：2018-03-26 09:59

本文选题：视频监控　切入点：AVS　出处：《太原理工大学》2014年硕士论文

【摘要】：随着社会的发展,人们越来越依赖视频监控系统,许多公共场所,如校园、政府部门、企业等都安装了视频监控系统。网络技术、图像处理方法和压缩技术、嵌入式技术的飞速发展,给网络视频监控系统安上了腾飞的翅膀。网络视频监控系统的出现不但增加了监控的范围,而且大大减少了人为的干预,逐渐发展成了物物相连的物联网系统。本文对物联网视频监控系统的关键部分提出了设计方案,并通过了实验验证,主要包括视频传感服务器、嵌入式客户端、存储服务器等三个部分。整个监控系统采用的视频压缩标准是具有国家自主知识产权的AVS标准；利用SIP来建立和管理会话,连接整个系统；通过RTP完成码流的打包、发送和解包。视频传感服务器基于TMS20DM6446平台,完成图像信息的采集、压缩编码和发送,它是一种“瘦服务器”,克服了传统视频传感器只能被动提供数据服务的缺点,它可以区分不同的请求,然后有选择的主动提供数据发送服务,并且将采集的数据按照AVS标准进行压缩编码；嵌入式客户端采用OMAP3530平台,将实验室自主优化的AVS解码器移植到该平台上,客户端主动的向视频传感服务器或存储服务器发送数据请求,完成码流的接收、解码和显示工作；存储服务器基于流媒体中间件的思想,在实现多路数据接收存储的基础上,可以接收客户端多种数据请求并提供数据服务,主要包括：不同客户端的对不同的码流文件的数据请求、不同客户端对同一码流文件的数据请求、同一客户端对不同码流文件的数据请求等。
[Abstract]:With the development of society, people rely more and more on video surveillance system. Many public places, such as campus, government departments, enterprises and so on, have installed video surveillance system. With the rapid development of embedded technology, the network video surveillance system has taken off. The appearance of the network video surveillance system not only increases the scope of monitoring, but also greatly reduces the artificial intervention. It has gradually developed into a connected internet of things system. In this paper, the key parts of the Internet of things video surveillance system are proposed and verified by experiments, mainly including video sensor server, embedded client, The video compression standard used in the whole monitoring system is the AVS standard with national independent intellectual property rights; the SIP is used to establish and manage the session and connect the whole system; the package of the code stream is completed through RTP. Send the reconciliation package. Video sensor server is based on TMS20DM6446 platform to complete image information collection, compression, coding and transmission. It is a "thin server", which overcomes the shortcoming that traditional video sensor can only passively provide data service, and it can distinguish different requests. Then the selected data sending service is provided, and the collected data is compressed and coded according to the AVS standard. The embedded client adopts OMAP3530 platform to transplant the self-optimized AVS decoder to the platform. The client sends the data request to the video sensor server or storage server to receive, decode and display the code stream. The storage server is based on the idea of streaming media middleware, and realizes the multi-channel data receiving and storage. It can receive a variety of data requests from clients and provide data services, including: data requests from different clients for different bitstream files, data requests from different clients for the same bitstream files, The data request of the same client to different bitstream files, etc.
【学位授予单位】：太原理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.6

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