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A fast indexing method and device for digital hard disk video recorder file storage

A hard disk video recorder and file indexing technology, which is applied in the direction of recording information storage, file system, file access structure, etc., can solve the problem of low retrieval efficiency of monitoring files, and achieve the effect of improving retrieval efficiency

Active Publication Date: 2017-11-10
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a fast indexing method and device for digital hard disk video recorder file storage, which is used to solve the problem of too many monitoring files and low retrieval efficiency in the monitoring system in the prior art

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  • A fast indexing method and device for digital hard disk video recorder file storage
  • A fast indexing method and device for digital hard disk video recorder file storage
  • A fast indexing method and device for digital hard disk video recorder file storage

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0037] figure 2 It is a flowchart of a fast indexing method for digital hard disk video recorder file storage provided by an embodiment of the present invention.

[0038] As shown in the figure, step 201 is included. When creating a monitoring file, the file information of the monitoring file is obtained. The file information includes channels, events and retrieval parameters, wherein the retrieval parameters include the start time and the end recording of the monitoring file. The end time of the monitored file.

[0039] Step 202, according to t...

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Abstract

The invention relates to the field of audio and video monitoring, in particular to a rapid indexing method and device for file storage of a digital video recorder. The method comprises the steps that when monitoring files are created, file information of the monitoring files is obtained, and the file information comprises channels, events and search parameters; according to the channels, the events and the search parameters, unique identifiers of the monitoring files are added to corresponding file index trees of tree structures; according to input search conditions, the file index trees corresponding to the search conditions are found; the unique identifiers matched with the search conditions are found in the corresponding file index trees, and the corresponding monitoring files are found according to the unique identifiers. By means of the rapid indexing method and device, search efficiency of a great number of monitoring files can be improved.

Description

technical field [0001] The invention relates to the field of audio and video monitoring, in particular to a fast indexing method and device for digital hard disk video recorder file storage. Background technique [0002] Video surveillance is an important part of the security system, and it is a comprehensive system with strong prevention capabilities. Video surveillance is widely used in many occasions because of its intuition, accuracy, timeliness and rich information content. In recent years, with the rapid development of computer, network, image processing and transmission technology, video surveillance technology has also made great progress. [0003] Such as Figure 1a and Figure 1b Shown is the file system of monitoring system in the prior art, the monitoring file stored on the hard disk video recorder (DVR) can be as follows Figure 1a As shown, it is stored separately according to multiple channels. For example, there are n channels in the figure, and each channe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G11B27/10G11B31/00
CPCG06F16/13G11B27/10G11B31/006
Inventor 姚国勤吴立杨斌张兴明傅利泉朱江明吴军吴坚
Owner ZHEJIANG DAHUA TECH CO LTD