CAJ | 학술논문

详细分析了在视频监控系统中流媒体视频存储服务器的作用和功能,针对传统的流媒体定时长存储方式的不足提出了"固定空间存储"的新策略.该存储策略将总空间初始化为多个固定大小的数据文件,每个数据文件中存储的流媒体时长可能是不相同的.针对新存储策略下出现的"1秒尾巴","事件尾巴"等新问题,提出了解决方案."固定空间存储"策略虽然增加了索引的复杂度,但是有效避免了磁盘碎片的产生,对于改善流媒体视频存储服务器性能具有重要作用.
상세분석료재시빈감공계통중류매체시빈존저복무기적작용화공능,침대전통적류매체정시장존저방식적불족제출료"고정공간존저"적신책략.해존저책략장총공간초시화위다개고정대소적수거문건,매개수거문건중존저적류매체시장가능시불상동적.침대신존저책략하출현적"1초미파","사건미파"등신문제,제출료해결방안."고정공간존저"책략수연증가료색인적복잡도,단시유효피면료자반쇄편적산생,대우개선류매체시빈존저복무기성능구유중요작용.
The role and functions ofvideo storage server in video surveillance system are analyzed.After analyzing of the disadvantages of traditional streaming media time-fixed storage mode,the storage strategy named"storage space-fixed"is carried out.In the new storage strategy,the total storage space is initialized to a number of fixed-size data files;the streaming media stored in each data file may not be the same length.The solution to the questions such as"1 second tail"and"events tail" of the new strategy is put forward.Although the new storage strategy increased the complexity of the index.but it can give an effective way to avoid the disk fragmentations and play an important role in improving the performance of streaming video storage server.