CN104378571B - The extract real-time and stacking method of a kind of absolute time - Google Patents
The extract real-time and stacking method of a kind of absolute time Download PDFInfo
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- CN104378571B CN104378571B CN201410694127.8A CN201410694127A CN104378571B CN 104378571 B CN104378571 B CN 104378571B CN 201410694127 A CN201410694127 A CN 201410694127A CN 104378571 B CN104378571 B CN 104378571B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 6
- 241001269238 Data Species 0.000 abstract description 5
- 238000013500 data storage Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 230000007717 exclusion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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Abstract
The invention discloses a kind of extract real-time of absolute time and stacking method, using large scale integrated chip (LSI chip) FPGA as control and data processing chip；Using single-chip microcomputer as time extraction and process chip；The chip superposed for carrying character library from inside and having video input interface realizes video image, time overlaying function；When data are read after experiment, searched by designed frame format and extraction time is as the filename for reading data.The present invention realize using power-on time the day moon Hour Minute Second as digital data recording system data storage filename, while for collection storage video frame sync be superimposed test period in real time（It is shown as moon day Hour Minute Second）, after solving test of many times, during the analysis of whole back read datas, the problem of data file and experimental condition, experiment process can not be corresponding.
Description
Technical field
The present invention relates to a kind of extract real-time of absolute time and stacking method, particularly relates to digital data recording system institute
The absolute time for more than data file of record establishing experiment of beginning by cable is filename, and is superimposed definitely in the vision signal of record
A kind of method of time.
Background technology
Digital data recording system generally use " numeration " mode used at present on aircraft（Such as：001、002、…）Or "
Filename of the location " mode as data storage, after multiple ground experiment or extension fly experiment, then read stored data and carry out
Test situation is analyzed, then is difficult to be combined carry out data analysis with the concrete condition of absolute time；And most of aircraft
The vision signal of target seeker output is free of absolute time information, then vision signal then analyzed by difficult be combined with data file.
Accordingly, it is desirable to provide a kind of new technical scheme solves the above problems.
The content of the invention
The technical problem to be solved in the invention is to provide the extract real-time and stacking method of a kind of absolute time, allows data
Record system is the video image reality of storage to establish filename of the absolute time as data storage for experiment of beginning on product by cable
When be superimposed with absolute time.
To solve the technical problem of the present invention, the technical solution adopted by the present invention is：
The extract real-time and stacking method of a kind of absolute time, comprise the following steps：
1）Single-chip microcomputer reads time data from time chip；
2）Time data is sent into chip superposed and is overlapped with video image by single-chip microcomputer；
3）Single-chip microcomputer, which packs time data, is sent into caching FIFO；
4）Program control chip FPGA from caching FIFO in take-off time data, and be superimposed the time video image and
Other coded datas for needing acquisition and recording are inserted in PCM data stream by designed frame format；
5）PCM data is stored in FLASH chip by program control chip FPGA；
6）When reading data, searched by designed frame format and extraction time data are as the filename for reading data.
Further, character library is carried inside the chip superposed.
Beneficial effects of the present invention：The present invention realizes to be deposited as digital data recording system using the day moon Hour Minute Second of power-on time
The filename of data is stored up, while the video frame sync for collection storage is superimposed test period in real time（It is shown as time-division moon day
Second）, after solving test of many times, during the analysis of whole back read datas, data file and experimental condition, experiment process can not be corresponding
Each data file more effective can must be combined analysis by problem, the present invention with specific test situation, video image, allow experiment
Situation analysis is more accurate, more detailed, more convenient；The lookup and exclusion of failure cause are rapider.
Brief description of the drawings
Fig. 1 is fundamental diagram of the present invention.
Wherein, 1, time chip, 2, single-chip microcomputer, 3, chip superposed, 4, caching FIFO, 5, program control chip FPGA, 6,
FLASH chip.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.Following examples are merely to illustrate this hair
It is bright, it is not limited to protection scope of the present invention.
With reference to figure 1, the extract real-time and stacking method of a kind of absolute time of the invention, comprise the following steps：
1）During 2 power-up initializing of single-chip microcomputer, pass through I2Clock line in clock chip 1 is put high level by C serial line interfaces, number
It is constant according to line level；The time data that now the read access time chip 1 of single-chip microcomputer 2 is sent is once；Follow-up time enters according to the frame period
Row is cumulative；
2）Time data is sent into chip superposed 3 by single-chip microcomputer 2, chip superposed 3 using the character library that carries by binary-coded decimal when
Between data be converted to time character string information, the position that built-in location register is sent according to single-chip microcomputer 2 in chip superposed 3 is believed
Display location of the adjustment time character string origin on video is ceased, so as to generate the new video image for being superimposed with temporal information；
3）Time data packing is sent into FIFO and cached by single-chip microcomputer 2；
4）When the data in FIFO reach full capacity, program control chip FPGA5 is responded once, is taken from FIFO cachings
Go out corresponding time data, be superimposed the video image of time and other coded datas for needing acquisition and recording carry out digital processing and by
In designed frame format insertion PCM data stream；
5）PCM data stream is stored in FLASH chip by program control chip FPGA5；
6）When reading data, searched by designed frame format and extraction time data are as the filename for reading data.
The present invention is using large scale integrated chip (LSI chip) FPGA as control and data processing chip, program control chip FPGA5
Inside includes configurable logic blocks CLB, output input module IOB and interconnector part；Carried using single-chip microcomputer 2 as the time
Take and process chip；The chip superposed 3 for carrying character library from inside and having video input interface realizes video image, time superposition
Function；When data are read after experiment, searched by designed frame format and extraction time is as the filename for reading data.
The present invention realize using power-on time the day moon Hour Minute Second as digital data recording system data storage filename, together
When for collection storage video frame sync be superimposed test period in real time（It is shown as moon day Hour Minute Second）, solve test of many times
Afterwards, during the analysis of whole back read datas, the problem of data file and experimental condition, experiment process can not be corresponding, the present invention can more have
Analysis must be combined by each data file with specific test situation, video image by imitating, and allow test situation analysis more accurately, more
In detail, it is more convenient；The lookup and exclusion of failure cause are rapider.
Claims (2)
1. the extract real-time and stacking method of a kind of absolute time, it is characterised in that：Comprise the following steps：
1）Single-chip microcomputer reads time data from time chip；
2）Time data is sent into chip superposed and is overlapped with video image by single-chip microcomputer；
3）Single-chip microcomputer, which packs time data, is sent into caching FIFO；
4）Program control chip FPGA take-off time data from caching FIFO, and with being superimposed the video image of time and other
The coded data of acquisition and recording is needed to be inserted by designed frame format in PCM data stream；
5）PCM data is stored in FLASH chip by program control chip FPGA；
6）When reading data, searched by designed frame format and extraction time data are as the filename for reading data.
2. the extract real-time and stacking method of a kind of absolute time according to claim 1, it is characterised in that：The superposition
Chip internal carries character library.
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| CN201410694127.8A CN104378571B (en) | 2014-11-27 | 2014-11-27 | The extract real-time and stacking method of a kind of absolute time |
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| CN201410694127.8A CN104378571B (en) | 2014-11-27 | 2014-11-27 | The extract real-time and stacking method of a kind of absolute time |
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| CN104378571A CN104378571A (en) | 2015-02-25 |
| CN104378571B true CN104378571B (en) | 2018-01-30 |
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| CN108958126A (en) * | 2018-07-31 | 2018-12-07 | 山东欧龙电子科技有限公司 | A kind of method of flying quality acquisition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1457494A (en) * | 2001-01-19 | 2003-11-19 | 索尼公司 | Dubbing apparatus |
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| US20020152060A1 (en) * | 1998-08-31 | 2002-10-17 | Tseng Ping-Sheng | Inter-chip communication system |
| KR100612221B1 (en) * | 2004-07-07 | 2006-08-16 | 삼성전자주식회사 | Video recording and reproducing apparatus having data restoration function and method thereof |
| JP4251131B2 (en) * | 2004-11-17 | 2009-04-08 | ソニー株式会社 | Data processing apparatus and method |
| CN201063045Y (en) * | 2007-06-08 | 2008-05-21 | 王悦 | Multimeter with log writing function |
| CN101202545B (en) * | 2007-11-13 | 2011-06-08 | 中国人民解放军63891部队 | High-accuracy data receiving time service instrument |
| CN102298561B (en) * | 2011-08-10 | 2016-04-27 | 北京百度网讯科技有限公司 | A kind of mthods, systems and devices memory device being carried out to multi-channel data process |
| CN103617658A (en) * | 2013-11-05 | 2014-03-05 | 中国人民解放军海军航空工程学院青岛校区 | Airborne multipath audio and video synchronization recorder and recording method |
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| CN1457494A (en) * | 2001-01-19 | 2003-11-19 | 索尼公司 | Dubbing apparatus |
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| Title |
|---|
| 分布式试飞测试系统总线及验证系统的设计与实现;刘光伦;《中国优秀硕士学位论文全文数据库 信息科技辑》;20080115;I137-10 * |
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