【摘要】：隨著經(jīng)濟的發(fā)展,遠程視頻監(jiān)控系統(tǒng)在當今社會起到了越來越重要的作用,視頻監(jiān)控傳輸協(xié)議的研究也越來越受到人們的重視。當前物流監(jiān)控平臺中視頻發(fā)布系統(tǒng)多采用了C/S模式,這樣運營方需要支付高昂的寬帶費用,很大程度上限制了視頻監(jiān)控在物流領域的應用。傳統(tǒng)的P2P技術雖然能夠幫助減少服務端的帶寬開支,但是需要開發(fā)特定的客戶端,跨平臺性較差,不能隨時查看監(jiān)控信息。而基于FLASH平臺的P2P視頻傳輸不僅極大的降低了服務器端的帶寬消耗,并且無需開發(fā)專門的客戶端,所有支持Flash的瀏覽器即可運行視頻監(jiān)控播放器。因此將Flash P2P技術應用于視頻監(jiān)控領域變得十分重要。本文從協(xié)議數(shù)據(jù)格式、協(xié)議交互流程、協(xié)議的應用、流量特征以及流量本地化等方面對RTMFP協(xié)議進行了詳細、深入的研究分析,并針對當前Flash P2P技術在實際應用中存在的不足,提出了基于Openflow的Flash P2P流量優(yōu)化方案,該方案經(jīng)仿真驗證,有效的解決了Flash P2P在應用中存在的流量本地化不理想、Qos低的問題。最終,設計實現(xiàn)了Flash P2P視頻監(jiān)控與分析系統(tǒng),該系統(tǒng)中RTMFP協(xié)議分析模塊對Flash P2P流量進行識別、統(tǒng)計分析,實時顯示當前網(wǎng)絡中Flash P2P的流量變化規(guī)律以及本地化情況。同時,基于RTMFP協(xié)議的視頻監(jiān)控模塊,成功的解決了傳統(tǒng)遠程視頻監(jiān)控高帶寬消耗而且不可跨平臺的不足。
[Abstract]:With the development of economy, remote video surveillance system plays a more and more important role in today's society, and more people pay attention to the research of video surveillance transmission protocol. At present, most of the video distribution systems in the logistics monitoring platform use C / S mode, so the operators have to pay high broadband fees, which limits the application of video surveillance in the field of logistics to a large extent. Although the traditional P2P technology can help to reduce the bandwidth expense of the server, it needs to develop specific clients, so the cross-platform is poor, and the monitoring information can not be viewed at any time. P2P video transmission based on FLASH platform not only greatly reduces the bandwidth consumption of the server, but also does not need to develop a special client, all the browsers that support Flash can run the video monitor player. So it is very important to apply Flash P2P technology to video surveillance. In this paper, the RTMFP protocol is studied and analyzed in detail from the aspects of protocol data format, protocol interaction flow, protocol application, traffic characteristics and traffic localization, and the deficiency of current Flash P2P technology in practical application is analyzed. A Flash P2P traffic optimization scheme based on Openflow is proposed. The scheme is verified by simulation, which effectively solves the problem of Flash P2P traffic localization is not ideal and Qos is low. Finally, the Flash P2P video surveillance and analysis system is designed and implemented. In this system, the RTMFP protocol analysis module is used to identify and analyze the P2P traffic of Flash, and to display the change rule and localization of P2P traffic in the current network in real time. At the same time, the video monitoring module based on RTMFP protocol successfully solves the high bandwidth consumption and non-cross-platform deficiency of traditional remote video surveillance.
【學位授予單位】：南京郵電大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TN948.6

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