基于DM8168多路视频监控系统研制

发布时间：2018-06-30 22:09

本文选题：达芬奇 + TMS320DM8168　；参考：《杭州电子科技大学》2014年硕士论文

【摘要】：计算机领域各项技术的快速发展带动了整个视频监控行业的高速发展。本文根据实际的需求设计与实现了多路视频监控系统。本视频监控系统的硬件平台是基于TMS320DM8168处理器，软件平台基于嵌入式Linux操作系统。整个系统在稳定性和可靠性等众多方面都具有优势。本文主要讲述了以下几个方面的内容：（1）分析了视频监控系统开发过程中使用到的相关理论知识，它包括音视频的编解码标准、流媒体传输协议、音视频数据的网络封包技术以及McFW软件架构。（2）介绍了本视频监控系统的总体设计方案，从硬件平台和软件总体方案两个方面进行了论述。硬件平台是基于达芬奇系列的TMS320DM8168多核处理器。软件平台是基于嵌入式Linux操作系统和TI的McFW软件框架，同时利用开源RTSP服务器Live555实现网络传输的功能。（3）搭建DM8168的嵌入式应用软件开发环境，包括主机（PC机）端和目标板（DM8168开发平台）端的开发环境。PC机端开发环境的搭建主要包括在PC机的linux系统下安装NFS、tftp服务、交叉编译工具以及DM8168的开发套件。目标板开发环境的搭建主要包括uboot的裁剪和编译、linux内核的裁剪和编译以及根文件系统的制作。（4）设计与实现了多路视频监控系统的服务器端软件，主要包括视频采集模块、视频编码模块、视频显示模块、视频存储模块以及网络传输模块的软件设计，实现了实时显示、视频本地硬盘存储以及网络传输的功能。（5）设计与实现了多路视频监控系统的客户端软件，，主要实现对视频监控系统的远程控制、实时预览、多通道画面切换以及OSD字符叠加显示。客户端软件内部包括RTSP交互模块、RTP数据接收模块、视频解码模块以及显示模块。（6）建立了视频监控系统的测试环境，对服务器端和客户端软件分别进行了测试。服务器端主要测试了实时性、编码压缩性能以及网络传输性能。客户端主要测试了实时预览以及延时的大小。测试结果表明本系统设计的视频监控系统具有较好的本地实时预览的性能以及网络传输延时小等特点。
[Abstract]:The rapid development of computer technology has driven the rapid development of the whole video surveillance industry. This paper designs and implements a multi-channel video surveillance system according to the actual requirements. The hardware platform of this video monitoring system is based on TMS320DM8168 processor, and the software platform is based on embedded Linux operating system. The whole system has advantages in many aspects, such as stability and reliability. The main contents of this paper are as follows: (1) the related theoretical knowledge used in the development of video surveillance system is analyzed, which includes audio and video coding and decoding standard, streaming media transmission protocol, The network packet technology of audio and video data and McFW software architecture. (2) this paper introduces the overall design of the video surveillance system, and discusses the hardware platform and software overall scheme. The hardware platform is based on the TMS320DM8168 multi-core processor of da Vinci series. The software platform is based on the embedded Linux operating system and the McFW software framework of TI. Meanwhile, the open source RTSP server Live555 is used to realize the function of network transmission. (3) the embedded application software development environment of DM8168 is built. The development environment of host (PC) and target board (DM8168 development platform). The construction of PC development environment mainly includes installing NFStftp service under linux system of PC, cross-compiling tool and DM8168 development suite. The development environment of the target board mainly includes the clipping and compiling of the uboot kernel and the making of the root file system. (4) the server-side software of the multi-channel video surveillance system is designed and implemented. It mainly includes the software design of video acquisition module, video coding module, video display module, video storage module and network transmission module. The function of video local hard disk storage and network transmission. (5) the client software of multi-channel video surveillance system is designed and implemented, which mainly realizes remote control and real-time preview of video surveillance system. Multi-channel screen switching and OSD character overlay display. The client software includes RTSP interactive module RTP data receiving module video decoding module and display module. (6) the test environment of video monitoring system is established and the server and client software are tested respectively. The server mainly tests the real-time, coding and compression performance as well as network transmission performance. The client mainly tests the real-time preview and the size of the delay. The test results show that the video surveillance system designed by this system has good local real-time preview performance and low transmission delay.
【学位授予单位】：杭州电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.6

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