Multi-video streaming data concurrent modulation and buffer storage method based on continuous storage model

A storage model and multi-video technology, applied in the direction of TV, color TV, color TV parts, etc., can solve the problems of disk I/O throughput bottleneck, huge energy consumption, etc., to improve write throughput and avoid space Fragmentation, avoiding the effect of moving back and forth

Active Publication Date: 2015-07-29
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-video stream data concurrent modulation and buffering storage method based on a continuous storage model, which mainly solves the bottleneck problem of disk I / O throughput and huge energy consumption encountered in traditional massive high-definition video surveillance data storage and disk wear issues

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  • Multi-video streaming data concurrent modulation and buffer storage method based on continuous storage model
  • Multi-video streaming data concurrent modulation and buffer storage method based on continuous storage model

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Embodiment

[0024] Such as figure 1 and figure 2 As shown, the storage method of concurrent modulation and buffering of multi-video stream data based on the continuous storage model is as follows:

[0025] When the data storage node is initialized, a fixed-size block file is created on each newly formatted disk in advance, and the specific size can be specified by the configuration file, and then the data of multiple video streams is written in sequence to these block files. When all block files are full, it will automatically return to the first block file and start overwriting.

[0026] In this embodiment, data of multiple video streams can be randomly written concurrently, and converted into sequential writing after modulation.

[0027] When multiple video streams are written to a disk at the same time, a block file may contain data of multiple video streams. If the detailed locations of the data segments of all video streams are saved as metadata, the metadata information will cons...

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Abstract

The invention discloses a multi-video streaming data concurrent modulation and buffer storage method based on a continuous storage model, comprising the following steps: A, when a data storage node is initialized, establishing a block file with fixed size on each of just preliminarily formatted disks and then dividing each of the block files into a plurality of continuous file pieces with the fixed size; B, when multipath video streaming network I / O arrives, merging the data in each path of the video streaming into one or more integral piece data in a memory cache according to the size of the file pieces; C, writing the piece data in the file pieces of the disks in batches by a scheduler. Aiming at the method disclosed by the invention, for the storage of the mass high-definition video streaming data, the self-defined continuous storage model is provided; the space fragmentation of disk partition due to frequent creation and deletion of the files is effectively solved, a magnetic disk head is prevented from moving back and forth in concurrent write-in process of the video streaming files, the I / O throughput rate of the disks is utilized efficiently and simultaneously the writing speed of the disks is improved.

Description

technical field [0001] The invention relates to a storage method for concurrent modulation and buffering of multiple video stream data based on a continuous storage model, belongs to the field of computer software, and relates to a file system. Background technique [0002] Video surveillance technology has always occupied an important position in the development of intelligent transportation. In recent years, the storage technology of video surveillance data has been more and more severely tested with the intensive distribution of front-end cameras and the high-definition of collected data. The existing video surveillance storage mainly adopts NVR storage solution: centralized management and control through the central business platform, network video server and IP camera as the front end, and IPSAN / NAS network storage as the back end for deployment. As the front end of NVR storage, the high-definition IP camera brings pressure on background storage is obvious. Taking a ...

Claims

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Application Information

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IPC IPC(8): H04N5/781
Inventor 段翰聪闵革勇詹文翰郭辉程文静张宇露李巧梅
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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