基于ONVIF标准的高清网络摄像机的设计与开发
发布时间：2018-09-14 16:59
【摘要】：视频监控被广泛地应用于国民生活和工业生产的各行各业。随着经济水平的增长和科技研发的进步，视频监控呈现数字化、高清化、网络化、智能化的发展方向。高带宽、低延时的3G和4G移动通信网络以及不断改善的互联网环境为新的发展趋势提供了契机。近年来推出的标准化安防接口ONVIF协议，为改善众多不同品牌产品私有协议的互联互通性能，提供了切实有效的途径。 本文首先从高清网络摄像机IPC（IP Camera）系统的需求分析出发，研究了硬件选用的方案和软件系统的架构。系统采用具有硬件编解码功能的海思Hi3518A芯片作为核心处理器，搭配快速读写的DDR3内存和符合工业标准的网卡。在充分研究Hi3518A芯片结构和功能的基础上，搭建了系统的运行平台HiLinux、根文件系统并开发了应用层软件。本文采用C/S和B/S两种模式，，设计了应用层软件IPCAM主架构，并研发了各个功能模块。视频压缩编码采用芯片的H.264硬件编解码功能；借助多线程读写锁的功能，开发了用于保存视频流的视频缓冲池；Web服务采用本文设计的支持多平台协议的动态服务器；网络视频点播由RTSP流媒体服务器提供；对ONVIF协议进行深入研究，借助gSOAP工具高效地开发ONVIF框架，实现网络摄像机所必须支持的ONVIF服务接口，并将其应用在系统架构中。由IPCAM完成对各个模块的初始化工作，并协调模块之间的业务调度。应用层软件主要提供Web访问界面友好、视频显示与传输、移动侦测、邮件报警、系统设置、互联互通等功能。 本系统于2013年底进入测试阶段，测试结果表明本系统功能完善、稳定性好，与其它厂商产品互联互通，达到了高清化、网络化、即插即用的设计目的。
[Abstract]:Video surveillance is widely used in Yu Guomin life and industrial production of various industries. With the growth of economic level and the development of science and technology, video surveillance is becoming more and more digital, high-definition, networked and intelligent. The 3G and 4G mobile communication networks with high bandwidth and low delay, as well as the improving Internet environment, provide the opportunity for the new development trend. In recent years, the standardized security interface (ONVIF) protocol has been introduced, which provides a practical and effective way to improve the interconnection performance of private protocols for many different brands. Based on the requirement analysis of IPC (IP Camera) system, this paper studies the hardware selection scheme and the architecture of the software system. The system adopts Heath Hi3518A chip with hardware coding and decoding function as the core processor, and matches the fast reading and writing DDR3 memory and the network card that conforms to the industry standard. Based on the research of the structure and function of Hi3518A chip, the HiLinux, root file system is built and the application layer software is developed. In this paper, the application layer software IPCAM architecture is designed by using two modes, C / S and B / S, and each functional module is developed. The video compression coding adopts the H.264 hardware codec function of the chip, the multi-thread read-write lock is used to develop the video buffer pool Web service for saving video stream, and the dynamic server supporting multi-platform protocol is designed in this paper. The network video on demand is provided by RTSP streaming media server, the ONVIF protocol is deeply studied, the ONVIF framework is developed efficiently with the help of gSOAP tools, the ONVIF service interface which must be supported by the network camera is realized, and it is applied in the system architecture. IPCAM completes the initialization of each module and coordinates the business scheduling between the modules. Application layer software mainly provides Web access interface friendly, video display and transmission, mobile detection, email alarm, system setting, interconnection and other functions. The system entered the testing stage at the end of 2013. The test results show that the system has perfect function, good stability, interconnection with other manufacturers, and achieves the design purpose of high definition, networking, plug and play.
【学位授予单位】：暨南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.41
本文编号：2243313
[Abstract]:Video surveillance is widely used in Yu Guomin life and industrial production of various industries. With the growth of economic level and the development of science and technology, video surveillance is becoming more and more digital, high-definition, networked and intelligent. The 3G and 4G mobile communication networks with high bandwidth and low delay, as well as the improving Internet environment, provide the opportunity for the new development trend. In recent years, the standardized security interface (ONVIF) protocol has been introduced, which provides a practical and effective way to improve the interconnection performance of private protocols for many different brands. Based on the requirement analysis of IPC (IP Camera) system, this paper studies the hardware selection scheme and the architecture of the software system. The system adopts Heath Hi3518A chip with hardware coding and decoding function as the core processor, and matches the fast reading and writing DDR3 memory and the network card that conforms to the industry standard. Based on the research of the structure and function of Hi3518A chip, the HiLinux, root file system is built and the application layer software is developed. In this paper, the application layer software IPCAM architecture is designed by using two modes, C / S and B / S, and each functional module is developed. The video compression coding adopts the H.264 hardware codec function of the chip, the multi-thread read-write lock is used to develop the video buffer pool Web service for saving video stream, and the dynamic server supporting multi-platform protocol is designed in this paper. The network video on demand is provided by RTSP streaming media server, the ONVIF protocol is deeply studied, the ONVIF framework is developed efficiently with the help of gSOAP tools, the ONVIF service interface which must be supported by the network camera is realized, and it is applied in the system architecture. IPCAM completes the initialization of each module and coordinates the business scheduling between the modules. Application layer software mainly provides Web access interface friendly, video display and transmission, mobile detection, email alarm, system setting, interconnection and other functions. The system entered the testing stage at the end of 2013. The test results show that the system has perfect function, good stability, interconnection with other manufacturers, and achieves the design purpose of high definition, networking, plug and play.
【学位授予单位】：暨南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.41
【参考文献】
相关期刊论文 前2条
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