CN101873456A - Video recording data reproduction device on digital video recorder and method thereof - Google Patents
Video recording data reproduction device on digital video recorder and method thereof Download PDFInfo
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- CN101873456A CN101873456A CN200910050001A CN200910050001A CN101873456A CN 101873456 A CN101873456 A CN 101873456A CN 200910050001 A CN200910050001 A CN 200910050001A CN 200910050001 A CN200910050001 A CN 200910050001A CN 101873456 A CN101873456 A CN 101873456A
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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
The present invention relates to video recording data reproducing device and method on the digital video recorder, more particularly, it relates to be responsible for monitoring that video data with the photographic map picture is as video recording data reproducing device and the method for data file (Data File) on the digital video recorder (DVR:Digital Video Recorder) of hard disk enterprising line items of recording medium such as (HDD) and reproduction.
Background technology
Generally, monitoring camera is installed in specific place, so that take at the relevant range, for example shown in Figure 1, above-mentioned monitoring camera 100 is responsible for the subject in the relevant range is taken, and exports by being installed in digital video recorder 200 at a distance then.
And, on above-mentioned digital video recorder 200, the subject image of being taken by above-mentioned monitoring camera is recorded and is stored in the hard disk memories such as (HDD) of the inner installation of device when exporting demonstration by watch-dog (Monitor) 300 pictures.
Simultaneously, on above-mentioned digital video recorder 200, the video data of above-mentioned subject image is registered as data file (Data File), for example in the middle of above-mentioned data file (* .dat), as shown in Figure 2, writing down image header (Image Header) and timetable map unit (Time Table Map Unit).
In addition, in the middle of above-mentioned image header, writing down the video data file is that video type (video_type) information, the frame of display video that adopts NTSC mode or PAL mode to record is frame type (frame_type) information of I-frame or P-frame or G-frame by the video time of recording time (saved_time) information, video data file.
Simultaneously, in the middle of above-mentioned image header, also writing down the size of displayed map picture frame frame sign (frame_size) information, show the channel number record video camera camera number (camera_no) information, show that the video recording pattern is video recording pattern (record_mode) information of continuous mode or alarm mode or motor pattern.
And in the middle of above-mentioned timetable map unit, channel map (channel_map) information, each passage that are writing down a plurality of camera chins are (for example: video recording pattern 16 passages) (dSavedMode[16]) information.
Simultaneously, on above-mentioned digital video recorder 200, can retrieve, and then carry out the reproducing movement that reads and reproduce a series of video recording data of video recording data at the image header and the timetable map unit that are recorded in the above-mentioned data file.
In addition, on above-mentioned digital video recorder 200, can when for example implementation be collectively referred to as the daylight saving time (DST:Daylight Saying Time) of " daylight-saving time (Summer Time) ", automatically the video time of data file be increased by 1 hour and reproduce; Perhaps when the summer time is cancelled, automatically the video time of data file is reduced 1 hour and reproduce.
But, when whether carrying out the summer time and come video time at data file to increase or reduce 1 hour automatically to reproduce, owing to can't be the image of during the summer time is carried out, taking or the image of shooting after summer time cancellation carries out clear and definite differentiation, thereby exist the problem that the user must distinguish one by one at the video recording date and time of reality to the current data file of need reproducing.
Summary of the invention
Therefore, the purpose of this invention is to provide video recording data reproducing device and method on a kind of digital video recorder, it can be when for example recording into data file to photographic images, show recording time be during the summer time is carried out or summer time cancellation during the identifying information addition record on above-mentioned data file, then when carrying out the reproduction operation, with reference to above-mentioned identifying information, automatically the video time of data file is increased or reduces certain hour, simultaneously showing that the additional information of whether carrying out the summer time is presented on the reproduced image discriminatively.
In order to achieve the above object, video recording data reproducing device according on the digital video recorder of the present invention comprises following part: be used for storing by-product recording and and can show during being in the summer time carries out or the store tools of the data file of the identifying information during the summer time cancellation; Be used for reading and reproducing the reproduction instrument of above-mentioned data file; Reference is also retrieved above-mentioned identifying information, when automatically the video time of data file being increased or reducing certain hour, during control is in the above-mentioned video time of expression the summer time and carries out or the additional information during the cancellation be presented at control tool on the reproduced image; And said additional information is generated as the OSD image, and add the OSD Core Generator that is presented on the above-mentioned reproduced image.
Simultaneously, according to the present invention being video recording data reproducing method on the digital video recorder of foundation, characteristics be to comprise following step stage: the 1st step, when the picture recording of taking during the summer time is carried out becomes data file, showing that identifying information addition record during the summer time implementation is in above-mentioned data file; And the 2nd step, when reproducing, when automatically video time being increased certain hour, showing that video time is that additional information during the summer time implementation is presented on the reproduced image with reference to above-mentioned identifying information at above-mentioned data file.
Simultaneously, according to the video recording data reproducing method on the digital video recorder of the present invention, comprise following step: the 1st step, when the picture recording of taking in during the summer time cancellation is become data file, at showing that the identifying information during the summer time is cancelled carries out addition record; And the 2nd step, when reproducing, when automatically video time being reduced certain hour, at showing that recording time is that additional information during the summer time cancellation is differently shown with reference to above-mentioned identifying information at above-mentioned data file.
According to the present invention, when photographic images is recorded into data file, show the summer time carry out during or identifying information addition record during the cancellation in data file, when carrying out the reproduction operation, automatically the video time of data file is increased or reduces certain hour with reference to above-mentioned identifying information, simultaneously showing that whether recording time is that additional information during the summer time is carried out is presented on the reproduced image discriminatively, be the image during the summer time is carried out, taken or the image of shooting the summer time is cancelled after with this data file of distinguishing current reproduction clearly.Thereby can reach the user and needn't distinguish one by one at the reality date and time of recording a video, simultaneously when submitting to as open evidence, needn't be prepared in addition proving data file be during the summer time is carried out or summer time cancellation during the effect of the testificandum data recorded.
Description of drawings
Fig. 1 is the embodiment schematic diagram that shows that common monitoring camera is connected with digital video recorder.
Fig. 2 is the image header and the interior embodiment schematic diagram of timetable map unit of the data file of ordinary numbers video cassette recorder record.
Fig. 3 is the structural representation that utilizes digital video recorder of the present invention.
Fig. 4 is the embodiment schematic diagram according to record DST mark in the image header of data file of the present invention and the timetable map unit.
Fig. 5 to Fig. 7 is the 1st an embodiment schematic diagram according to the video recording data reproducing method on the digital video recorder of the present invention.
Fig. 8 to Figure 10 is the 2nd an embodiment schematic diagram according to the video recording data reproducing method on the digital video recorder of the present invention.
The symbol description of major part in the accompanying drawing
100: monitoring camera 200: digital video recorder
20:A/D converter 21: Digital Signal Processing portion
22: codec (CODEC) 23: hard disk
24:OSD generating unit 25: microcomputer
26: timer 27: memory
Embodiment
Below, just with reference to accompanying drawing to being that the video recording data reproducing device on the digital video recorder of foundation and the preferred embodiment of method are elaborated with the present invention.
At first, be that the video recording data reproducing device of foundation and method are applicable to and can be connected the digital video recorder (DVR) that uses with at least more than one monitoring camera with the present invention, for example shown in Figure 3, comprise following part on the above-mentioned digital video recorder (DVR): A/D converter 20, Digital Signal Processing portion (DSP) 21, codec (CODEC) 22, hard disk 23, OSD generating unit 24, microcomputer 25, timer 26 and memory 27 etc.
In addition, on above-mentioned A/D converter 20, the analog video signal of taking there and receiving from monitoring camera is transformed into digital video signal; Above-mentioned Digital Signal Processing portion 21, above-mentioned digital video signal is treated to digital of digital video data; On above-mentioned codec (CODEC) 22, encode (Encoding) at above-mentioned digital of digital video data, on above-mentioned hard disk 23, be registered as data file (* .dat) then.
Simultaneously, when above-mentioned microcomputer 25 is carried out above-mentioned operation of recording, with reference to the current time of calculating by timer 26, and whether be to judge during the summer time (DST) is carried out to the current time, for example, if the current time is to be in during the summer time implementation, just control above-mentioned codec (CODEC) 22 operations, show the identifying information during the summer time is carried out in the data file on being recorded in above-mentioned hard disk (HDD) 23 on the addition record.
For example, as shown in Figure 4, in the image header (Image Header) of above-mentioned data file, as the identifying information that shows during the summer time is carried out, the DST_flag addition record be " on " state value (for example: DST_flag=01), simultaneously, in the timetable map unit (Time Table Map Unit) of above-mentioned data file, as the identifying information that shows during the summer time is carried out, the DST_flag addition record be " on " state value (for example: DST_flag=01).
On the contrary, on above-mentioned microcomputer 25, if the current time is the summer time carry out during before or after, so in the image header of above-mentioned data file, as the identifying information that shows during the summer time is cancelled, the DST_flag addition record be " off " state value (for example: DST_flag=00), simultaneously, in the timetable map unit of above-mentioned data file, as the identifying information that shows during the summer time is cancelled, is the DST_flag addition record that (for example: DST_flag=00), the size of above-mentioned identifying information DST_flag is at least more than 1 byte for the value of " off " state.
In addition, when above-mentioned microcomputer 25 reproduces the data file according to user's requirement, just control above-mentioned codec (CODEC) 22 operations, read and reproduce at the data files of record in the above-mentioned hard disk 23, with reference to the DST_flag of addition record in the image header of also retrieving above-mentioned data file and the timetable map unit, be to differentiate during the summer time is carried out or during the summer time cancellation to the recording time of data file.
And, when recording time that above-mentioned differentiation result is a data file is during the summer time is carried out the time, just automatically video time is increased certain hour (for example: 1 hour), controlling 24 operations of OSD generating unit simultaneously, is the data file that shows current reproduction that the additional information of recording during the summer time is carried out is presented on the reproduced image.
For example, shown in Figure 5, in the middle of the 1st embodiment that with the present invention is foundation, data file and recording time thereof are linked together to be recorded, if the current time is not during the summer time is carried out, in the image header of so above-mentioned data file and the timetable map unit just by " DST_flag=00 " on the addition record.
On the contrary, if the current time is during the summer time is carried out, just by " DST_flag=01 " on the addition record, the data file of recording during the data file of recording before during so just can carrying out the summer time and the summer time are carried out has made a distinction in the image header of so above-mentioned data file and the timetable map unit.
And, when above-mentioned microcomputer 25 reproduces the data file according to user's requirement, for example shown in Figure 5, the data file of Zai Xianing was recorded before the summer time is carried out if desired, just with reference to the image header of above-mentioned data file and " DST_flag=00 " of the interior addition record of timetable map unit, (for example: 6:30) corresponding data file is reproduced at the video time with the customer requirements reproduction.
Simultaneously, the operation of the above-mentioned OSD generating unit 24 of control on above-mentioned microcomputer 25, be the data file that shows current reproduction that the OSD image of the photographic images recorded before the summer time is carried out adds and is presented on the reproduced image, for example shown in Figure 6, on reproduced image, can add the OSD literal that demonstrates blue " DST OFF " printed words with video recording date and time (2007/08/27:6:30:00) together.
On the contrary, as shown in Figure 5, when the data file of recording during carrying out at the summer time is reproduced, just with reference to the image header of above-mentioned data file and " DST_flag=01 " of the interior addition record of timetable map unit, the video time that reproduces at customer requirements (for example: increase by 1 hour on basis 7:00) automatically.
Simultaneously, the operation of control OSD generating unit 24 on above-mentioned microcomputer 25, be the data file that shows current reproduction that the OSD image of the photographic images recorded during the summer time is carried out adds and is presented on the reproduced image, for example shown in Figure 7, on reproduced image, can add the OSD literal that demonstrates red " DST ON " printed words with the video recording date and time (2007/08/27:8:00:00) that is increased 1 hour.
Like this, the user just can correctly make a distinction the data file of recording during data file of recording before the summer time implementation and the summer time implementation.
In addition, in the middle of the 2nd embodiment according to the present invention, as shown in Figure 8, data file and recording time thereof link together and record, if the current time is in during the summer time implementation, just this is reflected and utilize the video time that increases after 1 hour to carry out record, simultaneously in the image header of above-mentioned data file and timetable map unit on the addition record " DST_flag=01 ".
On the contrary, if the current time be not be in the summer time and carry out during, addition record " DST_flag=00 " in the image header of above-mentioned data file and timetable map unit just.The data file of recording after during the data file of recording during so just can carrying out the summer time and the summer time are carried out has made a distinction.
And, when if above-mentioned microcomputer 25 reproduces at data file according to user's requirement, for example shown in Figure 8, when the data file of recording during carrying out at the summer time is reproduced, with reference to the image header of above-mentioned data file and " DST_flag=01 " of the interior addition record of timetable map unit, (for example: 6:30) corresponding data file is reproduced at the video time with the customer requirements reproduction.
Simultaneously, the operation of the above-mentioned OSD generating unit 24 of control on above-mentioned microcomputer 25, be the data file that shows current reproduction that the OSD image of the photographic images recorded during the summer time is carried out adds and is presented on the reproduced image, for example shown in Figure 9, on reproduced image, can demonstrate the OSD literal of red " DST ON " printed words with video recording date and time (2007/08/27:6:30:00).
On the contrary, as shown in figure 10, when the data file of recording after carrying out at the summer time is reproduced, in the image header of the above-mentioned data file of reference and the timetable map unit " DST_flag=00 " of addition record, (for example: 7:00) basis is upward automatic reduces 1 hour to the video time that reproduces at customer requirements.
Simultaneously, the operation of control OSD generating unit 24 on above-mentioned microcomputer 25, the OSD image interpolation that is the photographic images recorded to the data file that shows current reproduction after the summer time is carried out is presented on the reproduced image, for example shown in Figure 10, on reproduced image, can add the OSD literal that shows blue " DST OFF " printed words with the video recording date and time (2007/08/27:6:00:00) that is reduced 1 hour.
Like this, the user just can correctly make a distinction the data file of recording after data file of recording during the summer time implementation and the summer time implementation.
The aforesaid preferred embodiment of the present invention puts forward for the illustration purpose, the related work personnel are fully below in the application's of being put down in writing of claim item the technological thought and technical scope thereof, and other various embodiment are improved, change, substitute or additional etc.
Claims (12)
1. the video recording data reproducing method on the digital video recorder is characterized in that: comprising:
The 1st step is when the picture recording of taking during the summer time is carried out becomes data file, showing that identifying information addition record during the above-mentioned summer time implementation is in above-mentioned data file;
The 2nd step when reproducing at above-mentioned data file, increases certain hour to recording time automatically with reference to above-mentioned identifying information, simultaneously show that above-mentioned video recording is that the additional information of recording is presented on the reproduced image during the summer time is carried out.
2. the video recording data reproducing method on the digital video recorder as claimed in claim 1 is characterized in that: above-mentioned identifying information be used for showing the summer time carry out during and the mark more than 1 byte at least of the size during the summer time cancellation.
3. the video recording data reproducing method on the digital video recorder as claimed in claim 1 is characterized in that: above-mentioned identifying information at least will by addition record in data file image header and the timetable map unit in more than one in the middle of.
4. the video recording data reproducing method on the digital video recorder as claimed in claim 1, it is characterized in that: said additional information is to be used for showing the OSD character image of recording image during the summer time is carried out, is used fixing color to add and is presented on the reproduced image.
5. the video recording data reproducing method on the digital video recorder is characterized in that: comprising:
The 1st step, when the picture recording of taking in during the summer time cancellation was become data file, addition record was used for showing the identifying information during the above-mentioned summer time is cancelled;
The 2nd step, when reproducing at above-mentioned data file, above-mentioned identifying information is also retrieved in reference, automatically recording time is reduced certain hour, demonstrates the additional information of recording image during the above-mentioned summer time of expression is cancelled simultaneously discriminatively.
6. the video recording data reproducing method on the digital video recorder as claimed in claim 5 is characterized in that: above-mentioned identifying information is to be used for showing during the summer time cancellation and the size of the summer time during the carrying out mark more than 1 byte at least.
7. the video recording data reproducing method on the digital video recorder as claimed in claim 5 is characterized in that: above-mentioned identifying information at least will by addition record in data file image header and the timetable map unit in more than one in the middle of.
8. the video recording data reproducing method on the digital video recorder as claimed in claim 5, it is characterized in that: said additional information is to record the OSD character image of image in being used for showing during the summer time cancellation, is added being presented on the reproduced image with fixing color.
9. the video recording data reproducing device on the digital video recorder is characterized in that: comprise following part:
Being used for storing addition record during the implementation of the demonstration summer time or the store tools of the data file of the identifying information during the cancellation;
The reproduction instrument that reads and reproduce at above-mentioned data file;
Reference is also retrieved above-mentioned identifying information, automatically the recording time of data file is increased or when reducing certain hour, discriminatively show recording time be in the above-mentioned summer time and carry out during or additional information during the summer time cancellation be presented at control tool on the reproduced image;
Said additional information is generated as the OSD image, and its interpolation is presented at OSD Core Generator on the above-mentioned reproduced image.
10. the video recording data reproducing device on the digital video recorder as claimed in claim 9 is characterized in that: above-mentioned identifying information is to be used for showing during the summer time cancellation and the size of the summer time during the carrying out mark more than 1 byte at least.
11. the video recording data reproducing device on the digital video recorder as claimed in claim 9 is characterized in that: above-mentioned identifying information at least will by addition record in data file image header and the timetable map unit in more than one in the middle of.
12. the video recording data reproducing device on the digital video recorder as claimed in claim 9, it is characterized in that: said additional information is to be used for showing that recording time is in during the summer time implementation or the OSD character image during the summer time cancellation, is added being presented on the reproduced image with fixing color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100500016A CN101873456B (en) | 2009-04-24 | 2009-04-24 | Video recording data reproduction device on digital video recorder and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100500016A CN101873456B (en) | 2009-04-24 | 2009-04-24 | Video recording data reproduction device on digital video recorder and method thereof |
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| CN101873456A true CN101873456A (en) | 2010-10-27 |
| CN101873456B CN101873456B (en) | 2012-02-08 |
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| CN2009100500016A Expired - Fee Related CN101873456B (en) | 2009-04-24 | 2009-04-24 | Video recording data reproduction device on digital video recorder and method thereof |
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| JP4251786B2 (en) * | 2001-05-11 | 2009-04-08 | ソニー株式会社 | Information processing apparatus and method, and program |
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