计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (31): 56-59.DOI: 10.3778/j.issn.1002-8331.2009.31.018

• 研发、设计、测试 • 上一篇    下一篇

分布式大规模监控视频存储系统THNVR

邬建元1,2,顾 瑜1,2,鞠大鹏1,2,汪东升1,2   

  1. 1.清华大学 计算机科学与技术系,北京 100084
    2.清华信息科学技术国家实验室,北京 100084
  • 收稿日期:2009-05-05 修回日期:2009-10-08 出版日期:2009-11-01 发布日期:2009-11-01
  • 通讯作者: 邬建元

THNVR:Distributed large-scale surveillance video storage system

WU Jian-yuan1,2,GU Yu1,2,JU Da-peng1,2,WANG Dong-sheng1,2   

  1. 1.Department of Computer Science and Technology,Tsinghua University,Beijing 100084,China
    2.Tsinghua Information Science and Tech. National Lab,Beijing 100084,China
  • Received:2009-05-05 Revised:2009-10-08 Online:2009-11-01 Published:2009-11-01
  • Contact: WU Jian-yuan

摘要: 通过分析网络视频监控应用中的存储需求特点,提出了一种采用低成本SATA硬盘的高性能存储解决方案。该方案使用定长文件,并将结构化与非结构化数据分别存储和检索,彻底克服了传统解决方案中磁盘碎片导致存储性能下降的问题。该方案还采用了自适应的缓冲技术,对磁盘访问进行了有效的规整和调度,充分利用了磁盘的写入带宽。此外,该方案还实现了容错、扩展等重要功能。性能分析显示,该方案在普通计算机和SATA磁盘上能够同时记录256路D1或512路CIF视频数据流。

关键词: 视频监控, 视频存储, 磁盘碎片, 定长文件

Abstract: A novel approach to achieve high surveillance video storage performance via commodity SATA disks is introduced to meet the storage requirements of network video surveillance applications.The solution uses fixed-size files and manages structured and unstructured data separately to resolve the disk fragment problem thoroughly.It employs an adaptive buffering strategy,which regularizes and schedules the accesses to disks efficiently.It also implements features such as fault-tolerance and scalability.Performance analysis shows that the solution can carry out 256 ways of D1 or 512 ways of CIF video streams with one commodity computer setup.

Key words: video surveillance, video storage, disk fragmentation, fixed-size files

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