CN103780799A - Signal synchronizing method - Google Patents
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- CN103780799A CN103780799A CN201310749035.0A CN201310749035A CN103780799A CN 103780799 A CN103780799 A CN 103780799A CN 201310749035 A CN201310749035 A CN 201310749035A CN 103780799 A CN103780799 A CN 103780799A
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Abstract
The invention belongs to the field of a signal synthesizing method. A device according to the method of the invention comprises an acquiring unit, a time delay unit, a marking unit, a processing unit and a storage unit. Under the function of a clock, the acquiring unit acquires signal data and transmits the signal through the time delay unit and the processing unit respectively for finally storing the signal in the storage unit. The processing unit controls the marking unit for performing time marking on the signal data. The time delay unit performs data time-delay on the signal data according to the time mark in the signal data. The signal synchronizing method provided by the invention settles a problem of synchronizing multiple image signals or audio signals, ensuring consistent time axis of the multiple image signals or audio signal in playing and storing, and preventing synchronization in adjusting audio and video image at later period.
Description
Technical field
The invention belongs to a kind of signal synchronizing method field; The particularly a kind of synchronous method of multiply digital signals.
Background technology
On processing signals is synchronous, general signal setting synchronizing signal synchronous to needs, can be switching signal, can be also a continuous impulse.This synchronizing signal is arranged on to be needed in synchronous signal.
For the system equipment of a kind of multi-channel video signal or audio signal input, require to guarantee the correlation of vision signal and audio signal, particularly a kind of watch-dog based on dual camera, the correlation that needs to guarantee multi-channel video signal and audio signal, multi-channel video signal and audio signal show simultaneously and play.Like this can by adding in picture signal and audio signal, synchronizing signal realizes multi-channel video signal and audio signal is synchronous.
Summary of the invention
Objects of the present invention provide a kind of signal synchronizing method, solve multiway images signal and audio signal stationary problem.
Technical solution of the present invention is: a kind of method that signal is synchronous, comprises collecting unit, delay unit, mark
Note unit, processing unit and memory cell, under clock effect, described collecting unit collection signal data, and by described in described signal successively by delay unit and processing unit, finally deposit in memory module.Described processing unit control mark unit carries out time mark to described signal data, and described delay unit carries out data delay according to time mark in described signal data to it.Wherein, described collecting unit is digital sensor.
Further concrete to such scheme: to described indexing unit and collecting unit with under the clock cycle, described indexing unit adds timestamp data and forms synchrodata in low level or the high position of described collecting unit collection signal data, and described synchrodata outputs to delay unit.Described delay unit is according to the timestamp data contrast in the multipath synchronous data of input, determines synchrodata delay time described in each road.Described processing unit is to removing timestamp data from the data of described delay unit input.
Using time mark as the synchronous synchronizing signal of signal, can solve that a certain circuit-switched data signal is serious to postpone or after the input of a certain circuit-switched data signal interrupts recovering, the synchronous and correlation of multiple signals is still guaranteed.Particularly need guarantee synchronous broadcasting for multi-channel video signal, picture signal and audio signal, when identical file storage, guarantee that the time shaft of multi-channel video signal, picture signal and audio signal is consistent.
The invention has the beneficial effects as follows: a kind of method that solves multiway images signal or audio signal stationary problem is provided, guarantee that multiway images signal or audio signal time shaft in the time playing with storage is consistent, avoid the later stage to regulate synchronous working between Voice & Video image.
Accompanying drawing explanation
Fig. 1 is that the principle of the invention is implemented schematic diagram.
In accompanying drawing, 101-collecting unit, 102-collecting unit, 103-indexing unit, 104-indexing unit, 201-delay unit, 202-processing unit, 203-memory cell.
Specific embodiment
It is below the explanation that the present invention carries out specific embodiment by reference to the accompanying drawings.
As shown in Figure 1, the present invention includes collecting unit 101/102, delay unit 201, indexing unit 103/104, processing unit 202 and memory cell 203, under clock effect, described collecting unit 101/102 collection signal data, and by passing through successively delay unit 201 and processing unit 202 described in described signal, finally deposit in memory cell 203.Described processing unit 202 signal data that control mark unit 103 and indexing unit 104 collect described collecting unit 101 and collecting unit 102 respectively carries out time mark, and described delay unit 201 carries out data delay according to time mark in described signal data to it.Wherein, described collecting unit 101/102 is digital sensor.
Further concrete to such scheme: to described indexing unit 103/104 and under the same clock cycle of collecting unit 101/102, described indexing unit 103/104 adds timestamp data and forms synchrodata in low level or the high position of described collecting unit 101/102 collection signal data, and described synchrodata outputs to delay unit 201.Described delay unit 201 is according to the timestamp data contrast in the multipath synchronous data of input, determines synchrodata delay time described in each road.Described processing unit 202 is to the data processing of inputting from described delay unit 201 and remove timestamp data, finally deposits in memory cell 203.
For better carrying out data markers, described indexing unit adopts same clock, and simultaneously indexing unit flag data adopts clock count, while having, the information such as minute, second.For better realization, flag data is high-frequency impulse, the high-frequency pulse signal of for example 100MHz.
Using time mark as the synchronous synchronizing signal of signal, can solve that a certain circuit-switched data signal is serious to postpone or after the input of a certain circuit-switched data signal interrupts recovering, the synchronous and correlation of multiple signals is still guaranteed.Particularly need guarantee synchronous broadcasting for multi-channel video signal, picture signal and audio signal, when identical file storage, guarantee that the time shaft of multi-channel video signal, picture signal and audio signal is consistent.
Claims (5)
1. the method that signal is synchronous, comprise collecting unit, delay unit, indexing unit, processing unit and memory cell, under clock effect, described collecting unit collection signal data, and by described in described signal successively by delay unit and processing unit, finally deposit in memory module, be characterised in that: described processing unit control mark unit carries out time mark to described signal data, and described delay unit carries out data delay according to time mark in described signal data to it.
2. the synchronous method of a kind of signal according to claim 1, is characterized in that: described collecting unit is digital sensor.
3. the synchronous method of a kind of signal according to claim 1, it is characterized in that: described indexing unit and collecting unit are with under the clock cycle, described indexing unit adds timestamp data and forms synchrodata in low level or the high position of described collecting unit collection signal data, and described synchrodata outputs to delay unit.
4. the synchronous method of a kind of signal according to claim 1, is characterized in that: described delay unit is according to the timestamp data contrast in the multipath synchronous data of input, determines synchrodata delay time described in each road.
5. the synchronous method of a kind of signal according to claim 3, is characterized in that: described processing unit is to removing timestamp data from the data of described delay unit input.
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| CN201310749035.0A CN103780799A (en) | 2013-12-31 | 2013-12-31 | Signal synchronizing method |
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| CN201310749035.0A CN103780799A (en) | 2013-12-31 | 2013-12-31 | Signal synchronizing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103970701A (en) * | 2014-05-28 | 2014-08-06 | 吉林大学 | Field-programmable gate array based real-time synchronous data acquisition intellectual property core |
| CN106712881A (en) * | 2015-11-12 | 2017-05-24 | 上海远景数字信息技术有限公司 | Method and device for processing collected data |
| CN107423251A (en) * | 2017-07-28 | 2017-12-01 | 北京印刷学院 | A kind of distributed data acquisition synchronous method and system |
| CN113784881A (en) * | 2019-06-17 | 2021-12-10 | 三菱重工业株式会社 | Modular monitoring system for infrastructure and/or vehicles |
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| US20100231895A1 (en) * | 2009-03-16 | 2010-09-16 | Mann Christopher J | Quantitative phase-imaging systems |
| CN102075767A (en) * | 2010-11-29 | 2011-05-25 | 大连捷成实业发展有限公司 | Video and audio automatic synchronization processing method |
| CN102186065A (en) * | 2011-06-01 | 2011-09-14 | 广州市晶华光学电子有限公司 | Monitoring camera with 360-degree field angle |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101300836A (en) * | 2005-11-02 | 2008-11-05 | 安泰科技有限公司 | Image signal processor and method for outputting deferred vertical synchronous signal |
| US20100231895A1 (en) * | 2009-03-16 | 2010-09-16 | Mann Christopher J | Quantitative phase-imaging systems |
| CN102075767A (en) * | 2010-11-29 | 2011-05-25 | 大连捷成实业发展有限公司 | Video and audio automatic synchronization processing method |
| CN102186065A (en) * | 2011-06-01 | 2011-09-14 | 广州市晶华光学电子有限公司 | Monitoring camera with 360-degree field angle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970701A (en) * | 2014-05-28 | 2014-08-06 | 吉林大学 | Field-programmable gate array based real-time synchronous data acquisition intellectual property core |
| CN103970701B (en) * | 2014-05-28 | 2017-08-25 | 吉林大学 | The IP core of real time data synchronization collection based on field programmable gate array |
| CN106712881A (en) * | 2015-11-12 | 2017-05-24 | 上海远景数字信息技术有限公司 | Method and device for processing collected data |
| CN106712881B (en) * | 2015-11-12 | 2019-06-04 | 上海东土远景工业科技有限公司 | A kind of method and device of processing acquisition data |
| CN107423251A (en) * | 2017-07-28 | 2017-12-01 | 北京印刷学院 | A kind of distributed data acquisition synchronous method and system |
| CN113784881A (en) * | 2019-06-17 | 2021-12-10 | 三菱重工业株式会社 | Modular monitoring system for infrastructure and/or vehicles |
| CN113784881B (en) * | 2019-06-17 | 2024-02-09 | 三菱重工业株式会社 | Modular monitoring system for infrastructure and/or vehicles |
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Application publication date: 20140507 |