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Concurrent Modulation and Buffering Storage Method of Multi-Video Stream Data Based on Continuous Storage Model

A storage model, multi-video technology, applied in TV, color TV, color TV components and other directions, can solve the bottleneck of disk I/O throughput rate, huge energy consumption and other problems, improve write throughput rate, avoid space Fragmentation and the effect of improving throughput

Active Publication Date: 2018-07-24
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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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

Method used

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  • Concurrent Modulation and Buffering Storage Method of Multi-Video Stream Data Based on Continuous Storage Model
  • Concurrent Modulation and Buffering Storage Method of Multi-Video Stream Data 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 storage method for concurrent modulation and buffering of multiple video stream data based on a continuous storage model. Including steps: A. When the data storage node is initialized, a block file of a fixed size is established in advance on each disk that has just been formatted, and then each block file is divided into several continuous file pieces of a fixed size; B. When multi-channel video stream network I / O arrives, the data of each video stream is merged into one or more complete piece data in the memory cache according to the size of the file piece; C. The scheduler writes piece data to disk in batches In the file slice in . The present invention proposes a self-defined continuous storage model for the storage of massive high-definition video stream data, which effectively solves the fragmentation of disk partition space caused by frequent creation and deletion of files, and avoids the concurrent writing process of video stream files by disk heads The back-and-forth movement in the disk efficiently utilizes the disk I / O throughput rate and improves the disk write rate at the same time.

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 v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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 ELECTRONICS SCI & TECH OF CHINA
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