基于嵌入式的无线视频监控系统设计与实现

发布时间：2018-01-18 12:01

本文关键词：基于嵌入式的无线视频监控系统设计与实现　出处：《广西师范大学》2017年硕士论文　论文类型：学位论文

更多相关文章： 嵌入式 视频监控 Linux Qt Android

【摘要】：随着社会的不断发展与进步,人们的安防意识逐渐增强,视频监控系统以其准确、直观和高效的特点,在安防领域得到了广泛的应用。传统的视频监控系统大多是以有线网络为主,其安装布线工程量大、移动性差且成本高。随着WiFi、4G等无线传输技术及嵌入式技术的发展,视频监控系统正朝着无线化、小型化和低成本等方向发展。本文通过研究无线视频监控的关键技术,设计出了一个基于嵌入式的无线视频监控系统。该系统包括三部分,分别为监控前端、中心服务器和移动监控终端。中心服务器创建WiFi热点,监控前端和移动监控终端分别接入WiFi热点与中心服务器无线连接,从而克服了有线监控技术的缺陷。本文完成的主要研究工作如下:(1)根据本文设计的内容和需求,提出了基于嵌入式的无线视频监控系统总体设计方案,并分别提出了监控前端、中心服务器、移动监控终端的设计方案。(2)搭建了嵌入式服务器的硬件平台及软件开发环境,包括嵌入式Linux操作系统的U-Boot移植、内核移植及构建根文件系统。(3)嵌入式服务器应用软件的开发,完成了多路监控视频的采集、压缩编码及无线传输。(4)中心服务器端应用软件的开发,使用Qt开发与用户交互的友好界面,完成了多路监控视频数据的接收与转发、视频解码、视频存储、视频播放及视频的动态检测,并对动态视频进行备份存储。(5)移动监控终端应用软件的开发,在Android系统上实现了对多路监控视频数据的接收及解码播放等功能。实验测试结果表明,本文设计的基于嵌入式的无线视频监控系统达到了系统设计要求,监控视频图像清晰流畅,并具有准确性高和实时性好的优点。
[Abstract]:With the continuous development and progress of society, people's security awareness is gradually enhanced, video surveillance system with its accurate, intuitive and efficient characteristics. In the field of security has been widely used. The traditional video surveillance system is mostly wired network, its installation and wiring project is large, mobility is poor and high cost. With WiFi. With the development of wireless transmission technology such as 4G and embedded technology, video surveillance system is developing towards wireless, miniaturization and low cost. A wireless video surveillance system based on embedded system is designed. The system consists of three parts: the front end, the central server and the mobile monitoring terminal. The center server creates the WiFi hotspot. The monitoring front end and the mobile monitoring terminal are connected to the WiFi hot spot and the central server wireless connection respectively. In order to overcome the shortcomings of cable monitoring technology. The main research work completed in this paper is as follows: 1) according to the content and requirements of this paper, the overall design scheme of wireless video surveillance system based on embedded is put forward. And put forward the monitoring front-end, central server, mobile monitoring terminal design scheme. 2) built the embedded server hardware platform and software development environment. Including the U-Boot transplantation of embedded Linux operating system, kernel transplantation and the development of embedded server application software to build root file system. Compression coding and wireless transmission. 4) the development of the application software of the central server, using QT to develop friendly interface with the user, completed the receiving and forwarding of multi-channel surveillance video data, video decoding. Video storage, video playback and video dynamic detection, and dynamic video backup storage. 5) Development of mobile monitoring terminal application software. The functions of receiving and decoding video data are realized on Android system. The experimental results show that. The wireless video surveillance system based on embedded system meets the requirements of system design. The video image is clear and smooth, and has the advantages of high accuracy and good real-time.
【学位授予单位】：广西师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN948.6

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