本文選題：視頻監(jiān)控 + HDFS�。� 參考：《浙江大學(xué)》2014年碩士論文

【摘要】：視頻監(jiān)控系統(tǒng)最重要的是視頻數(shù)據(jù)的存儲(chǔ)和視頻的點(diǎn)播回放,同時(shí)視頻存儲(chǔ)設(shè)備作為視頻監(jiān)控系統(tǒng)的基礎(chǔ)設(shè)施,存儲(chǔ)設(shè)備的穩(wěn)定性及性能直接決定了視頻監(jiān)控系統(tǒng)的綜合性能。隨著云計(jì)算的發(fā)展,云存儲(chǔ)技術(shù)也得到了快速發(fā)展,同時(shí)為視頻監(jiān)控系統(tǒng)的存儲(chǔ)提供了新思路。通過引入分布式的存儲(chǔ)系統(tǒng),不僅可以滿足日益發(fā)展的視頻監(jiān)控系統(tǒng)存儲(chǔ)設(shè)備的需求,同時(shí)能夠提高視頻回放的性能。另外由于云存儲(chǔ)技術(shù)支持使用廉價(jià)PC設(shè)備搭建分布式集群,可以大大節(jié)約用戶成本。 本文基于HDFS(Hadoop Distributed File System)分布式文件系統(tǒng)研發(fā)了網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)存儲(chǔ)管理及VOD回放模塊。本文研究的系統(tǒng)運(yùn)行于開源Linux系統(tǒng)上,將開源的分布式文件系統(tǒng)HDFS應(yīng)用于視頻數(shù)據(jù)的存儲(chǔ)和讀取,研究開發(fā)了基于HDFS集群的存儲(chǔ)管理和VOD點(diǎn)播模塊；研究了HDFS分布式文件系統(tǒng)的架構(gòu)及關(guān)鍵技術(shù),并基于HDFS構(gòu)建了分布式存儲(chǔ)集群；為了能夠?qū)Σ煌鎯?chǔ)進(jìn)行適配接入,應(yīng)用適配器模式開發(fā)了存儲(chǔ)接口用于存儲(chǔ)設(shè)備的接入；應(yīng)用多線程技術(shù),基于多任務(wù)處理的方式研發(fā)了存儲(chǔ)管理模塊用于接入視頻監(jiān)控平臺(tái)；根據(jù)視頻存儲(chǔ)的特點(diǎn),開發(fā)了包含錄像文件管理、錄像搜索的存儲(chǔ)管理模塊,滿足了視頻監(jiān)控平臺(tái)存儲(chǔ)模塊的要求；針對(duì)傳統(tǒng)TS碼流TCP over RTP傳送效率低的缺點(diǎn),基于Darwin Streaming Server研發(fā)了TS碼流UDP推送模塊,提高了系統(tǒng)性能,增加了DSS的系統(tǒng)功能；基于Linux異步I/O模型,研發(fā)了TS碼流網(wǎng)絡(luò)傳輸模塊,提高了系統(tǒng)的性能和穩(wěn)定性；由于UDP沒有良好的速率控制,基于TS碼流的PCR字段開發(fā)了速率控制模塊,提高了推送TS流的穩(wěn)定性,有效避免了網(wǎng)絡(luò)抖動(dòng)給客戶端帶來的馬賽克或者延時(shí)影響。所研發(fā)的存儲(chǔ)管理模塊和VOD回放模塊,滿足了監(jiān)控系統(tǒng)的存儲(chǔ)和回放要求,并且提高了監(jiān)控系統(tǒng)的穩(wěn)定性。
[Abstract]:The storage of video data and the playback of video on demand are the most important parts of the video surveillance system. The stability and performance of the storage device directly determine the comprehensive performance of the video surveillance system. With the development of cloud computing, cloud storage technology has also been rapidly developed, and provides a new idea for video surveillance system storage. By introducing the distributed storage system, it can not only meet the requirements of the increasingly developed video surveillance system storage devices, but also improve the performance of video playback. In addition, the cloud storage technology supports the use of cheap PC devices to build a distributed cluster, which can greatly reduce the cost of users. In this paper, a storage management and VOD playback module of network video surveillance system is developed based on HDFSX Hadoop distributed File system. The system studied in this paper is running on the open source Linux system. The open source distributed file system HDFS is applied to the storage and reading of video data. The storage management and VOD on-demand module based on HDFS cluster are developed. The architecture and key technologies of HDFS distributed file system are studied, and the distributed storage cluster is constructed based on HDFS. Based on multithread technology, a storage management module is developed for accessing video monitoring platform based on multi-task processing, and a storage management module including video file management and video search is developed according to the characteristics of video storage. It meets the requirements of video monitoring platform storage module, aiming at the low efficiency of traditional TS stream TCP over, a TS stream UDP push module based on Darwin streaming Server is developed, which improves the system performance and increases the system function. Based on the asynchronous I / O model of Linux, the TS bitstream network transmission module is developed, which improves the performance and stability of the system, and because UDP does not have good rate control, the rate control module is developed based on the PCR field of TS stream. The stability of push TS stream is improved, and the mosaic or delay effect of network jitter is avoided. The developed storage management module and VOD playback module meet the storage and playback requirements of the monitoring system and improve the stability of the monitoring system.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN948.6

【參考文獻(xiàn)】

相關(guān)期刊論文 前5條

1 李炳林;流媒體技術(shù)及應(yīng)用[J];電力系統(tǒng)自動(dòng)化;2001年24期

2 許靜,陳宏剛,王慶人;軟件測(cè)試方法簡(jiǎn)述與展望[J];計(jì)算機(jī)工程與應(yīng)用;2003年13期

3 黃拔峰,鐘明,楊傳鈞,張家鈺;Darwin Streaming server的研究與應(yīng)用[J];計(jì)算機(jī)工程;2004年19期

4 劉運(yùn)強(qiáng),王匯源;Socket和多線程在視頻傳輸中的應(yīng)用[J];山東大學(xué)學(xué)報(bào)(工學(xué)版);2004年02期

5 盧靜;劉占偉;;基于H.264的嵌入式視頻服務(wù)器的研究與實(shí)現(xiàn)[J];信息與電腦(理論版);2010年01期

相關(guān)博士學(xué)位論文 前2條

1 肖廣;基于IP的視頻監(jiān)控若干關(guān)鍵技術(shù)研究[D];華東師范大學(xué);2008年

2 黃源源;視頻監(jiān)控系統(tǒng)中一些關(guān)鍵技術(shù)的研究[D];電子科技大學(xué);2013年

相關(guān)碩士學(xué)位論文 前2條

1 余少勇;基于DM642的流式網(wǎng)絡(luò)視頻監(jiān)控系統(tǒng)研究[D];廈門大學(xué);2007年

2 張興;基于Hadoop的云存儲(chǔ)平臺(tái)的研究與實(shí)現(xiàn)[D];電子科技大學(xué);2013年

，

本文編號(hào)：1995656