Embedded video-recording data storage method

Abstract

The invention relates to an embedded video-recording data storage method. The embedded video-recording data storage method includes the steps of firstly, setting a video-recording data storage format; secondly, writing video-recording data according to the video-recording data storage format; thirdly, querying the video-recording data according to the video-recording data storage format; fourthly, reading the video-recording data according to the video-recording data storage format. The embedded video-recording data storage method has the advantages that the problems of an existing universal documentation system are avoided effectively, so that not only reliable and high-efficiency data storage but also high-efficiency data retrieval and data reading can be achieved.

Description

technical field [0001] The invention relates to the technical field of security, in particular to an embedded video recording data storage method. Background technique [0002] With the improvement of people's awareness of public safety, there are more and more applications of video surveillance. Traditional fixed-point monitoring cannot meet the monitoring needs of moving objects such as vehicles. Therefore, vehicle-mounted hard disk video recorders and other monitoring devices suitable for use in vehicles have appeared. video recording equipment. [0003] At present, the storage medium of surveillance video recording is the first choice in terms of capacity and cost-effectiveness. This is because the data volume of video data is very large, and only mechanical hard disks can meet the needs of video storage time, while non-mechanical solid-state drives are not only expensive, but their storage capacity cannot meet the needs of video storage time. For example, general su...

AI Technical Summary

Problems solved by technology

A general-purpose file system cannot control the timing of writing to the disk. It may occur that writing is too frequent, or data is written when the device is most turbulent, which increases the probability of disk damage.

[0006] 2. Fault tolerance and data recovery of partial disk damage

For a general-purpose file system, the impact on data damage cannot be evaluated after disk bad blocks appear. If the damage is in the index part, the data on the entire disk may be lost and the data cannot be recovered.

There is also no way to achieve fault tolerance for a small number of bad blocks

[0007] 3. After an abnormal power failure and restart, there will be problems such as file loss, file index table damage, etc.

[0008] 4. Disk fragmentation problem

The common file system, after a long time of use, especially the frequent write operation of video recording, will cause increased disk fragmentation, thus affecting the operating performance of the entire device

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