嵌入式高清视频监控系统的设计与实现

发布时间：2018-04-01 10:02

本文选题：嵌入式　切入点：Linux　出处：《华中科技大学》2013年硕士论文

【摘要】：视频监控系统是一种防范能力较强的安全防范系统。视频监控以其直观、方便、信息内容丰富而广泛应用于金融系统、交通系统、公安系统、教育系统和医疗系统等众多领域。近年来，随着视频监控的普及，人们对视频监控画面的清晰度要求越来越高，传统标清视频监控系统已不再适应时代发展的需要，因此研究开发具有自主知识产权的高清视频监控系统，有着良好的市场前景。基于嵌入式操作系统Linux2.6.31.8平台，结合Marvell MV78100高性能处理器，设计实现了一个嵌入式高清视频监控系统。在硬件上，系统通过FPGA控制压缩芯片将高清摄像机拍摄的高清视频数据进行压缩，并选用了Marvell公司高性能处理器MV78100，通过该芯片上的Device Bus，实现了高清视频数据的实时传输。在软件上，系统移植了Linux2.6.31.8，并搭建嵌入式开发平台，通过Linux下/dev/mem设备以及mmap系统调用实现了在用户态下操作Device Bus，避开了嵌入式开发中驱动编写的环节，并保证了数据传输的及时性与可靠性。嵌入式高清视频监控系统解决了传统视频监控系统画面清晰度不高的问题，在不同使用环境下都有较好的效果，广泛适用于金融系统、交通系统、公安系统和医疗系统等众多领域。
[Abstract]:Video surveillance system is a kind of security system with strong ability of prevention.Video surveillance is widely used in many fields, such as financial system, transportation system, public security system, education system and medical system.In recent years, with the popularity of video surveillance, people have higher and higher requirements for the definition of video surveillance pictures. The traditional standard and clear video surveillance system has no longer adapted to the needs of the development of the times.Therefore, the research and development of high-definition video surveillance system with independent intellectual property rights has a good market prospect.Based on the embedded operating system Linux2.6.31.8 platform and Marvell MV78100 high performance processor, an embedded high-definition video surveillance system is designed and implemented.In hardware, the system uses FPGA to control the compression chip to compress the high-definition video data taken by the high-definition camera, and selects the high performance processor MV78100 of Marvell Company. Through the Device bus on the chip, the real-time transmission of high-definition video data is realized.In software, the system transplanted Linux 2.6.31.8and set up an embedded development platform, through the Linux / dev-mem device and mmap system call to realize the operation of Device in the user state, avoiding the link of driving programming in the embedded development.And ensure the timeliness and reliability of data transmission.The embedded high-definition video surveillance system solves the problem of low definition of the traditional video surveillance system. It has good effect in different use environments and is widely used in financial system and transportation system.Public security system and medical system and many other fields.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN948.6

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