Video recording data reproduction device on digital video recorder and method thereof

Abstract

The invention relates to a video recording data reproduction device on a digital video recorder and a method thereof. The method comprises the following steps: recording images into a data file; additionally recording identification information for indicating daylight-saving time execution period or daylight-saving time cancelling period on the data file; and when executing the reproduction action, automatically increasing or decreasing a period of time (for example: 1 hour) on the basis of recording time of the data file according to the identification information, and meanwhile, displaying the additional information, which indicates whether to execute the daylight-saving time, on the reproduced image, thereby definitely distinguishing whether the currently reproduced data file is the image shot in the daylight-saving time execution period or after the daylight-saving time is cancelled, so that the user does not need to distinguish date and time of the actual videos one by one. When the image is submitted as a public proof, the user does not need to additionally prepare testifying data, such as data files for proving whether the image is recorded in the daylight-saving time execution period or daylight-saving time cancelling period, and the like.

Description

technical field [0001] The present invention relates to a recording data reproducing device and method on a digital video recorder, and more specifically, it relates to recording the video data of images captured for monitoring as a data file (Data File) on a recording medium such as a hard disk (HDD). A device and method for reproducing recorded data on a digital video recorder (DVR: Digital Video Recorder) for reproduction. Background technique [0002] Usually, surveillance cameras are installed in specific places in order to take pictures of relevant areas, such as figure 1 As shown, the monitoring camera 100 is responsible for taking pictures of the subjects in the relevant area, and then outputting them through the digital video recorder 200 installed at a distance. [0003] And, on the above-mentioned digital video recorder 200, the image of the subject captured by the above-mentioned monitoring camera is recorded and stored in a hard disk (HDD) etc. installed inside...

AI Technical Summary

Problems solved by technology

[0010] However, when the recording time of a data file is automatically increased or decreased by 1 hour for reproduction according to whether the daylight saving time is implemented, it is impossible to determine whether the data file currently to be reproduced is an image taken during the implementation of the daylight saving time or an image taken during the daylight saving time The images captured after cancellation are clearly distinguished, so there is a problem that the user must distinguish one by one for the actual recording date and time

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