CN106303451B - The video processing unit output synchronism detection method and system of multi-display apparatus - Google Patents
The video processing unit output synchronism detection method and system of multi-display apparatus Download PDFInfo
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- CN106303451B CN106303451B CN201610768152.5A CN201610768152A CN106303451B CN 106303451 B CN106303451 B CN 106303451B CN 201610768152 A CN201610768152 A CN 201610768152A CN 106303451 B CN106303451 B CN 106303451B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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Abstract
The present invention relates to a kind of video processing unit of multi-display apparatus output synchronism detection method and systems, the video processing unit of above-mentioned multi-display apparatus exports synchronism detection method, includes the following steps: that test signal is sent to video acquisition unit respectively using multiple video processing units to be measured；Multiple test signals are received in video acquisition unit, timing replacement is carried out to each test signal respectively, generate the corresponding timing sequence process signal of each test signal, and multiple timing sequence process signals are transmitted separately to target video processing unit；Wherein, the target video processing unit is any one video processing unit in multi-display apparatus in addition to video processing unit to be measured；It target video processing unit is received into the test video information exported after each timing sequence process signal is sent to target display unit and show, the test video information that the target display unit is shown is used to detect the output synchronism of each video processing unit to be measured.
Description
Technical field
The present invention relates to video signal treatment technique fields, handle list more particularly to a kind of video of multi-display apparatus
Member output synchronism detection method and system.
Background technique
With the high speed development of display technology, the application of multihead display is more extensive；Corresponding multi-display apparatus has been got over
Come more frequent for all kinds of work and lifes.Multi-display apparatus may include video acquisition unit, video processing unit, view
Frequency transmission unit and multiple display units (display screen)；Above-mentioned each display unit respectively corresponds a video processing unit,
When multiple display units of multi-display apparatus carry out video display, only each video processing unit is exported to corresponding display
The signal of unit is synchronous, and signal shown by multiple display units is just able to maintain synchronization；If each video processing unit export to
The signal of respective display unit is asynchronous, and nonsynchronous problem will occur in signal shown by display unit, and multifrequency is shown at this time
There is the phenomenon that showing asynchronous (exporting asynchronous) in device, will seriously affect the display effect of multifrequency display device, reduces
Corresponding user experience.
In traditional scheme, need to access video processing unit to be detected in multi-display apparatus other a large amount of displays
Equipment export video processing unit to be detected same on the basis of guaranteeing that the display equipment of all accesses exports synchronous
The detection of step；Or output timing is tested using equipment such as oscillographs, successively detect multi-display apparatus video processing to be detected
Whether the output of unit synchronizes.Although above scheme can be realized to a certain extent to video to be detected in multi-display apparatus
Processing unit exports the detection whether synchronized, however needs by external equipment, and detection process is complicated.
Summary of the invention
Based on this, it is necessary to for conventional video processing unit output Synchronization Solution needs by external equipment,
The technical problem of detection process complexity, provide a kind of multi-display apparatus video processing unit output synchronism detection method and
System.
A kind of video processing unit output synchronism detection method of multi-display apparatus, includes the following steps:
Test signal is sent to video acquisition unit respectively using multiple video processing units to be measured；
Multiple test signals are received in video acquisition unit, timing replacement is carried out to each test signal respectively, are generated
The corresponding timing sequence process signal of each test signal, and it is single that multiple timing sequence process signals are transmitted separately to target video processing
Member；Wherein, the target video processing unit is any one view in multi-display apparatus in addition to video processing unit to be measured
Frequency processing unit；
Target video processing unit is received into the test video information exported after each timing sequence process signal and is sent to target
Display unit is shown that the test video information that the target display unit is shown is single for detecting each video processing to be measured
The output synchronism of member.
A kind of video processing unit output synchronism detection system of multi-display apparatus, comprising:
Sending module, for test signal to be sent to video acquisition list respectively using multiple video processing units to be measured
Member；
Generation module respectively carries out each test signal for receiving multiple test signals in video acquisition unit
Timing replacement generates the corresponding timing sequence process signal of each test signal, and multiple timing sequence process signals is transmitted separately to mesh
Mark video processing unit；Wherein, the target video processing unit be multi-display apparatus in addition to video processing unit to be measured
Any one video processing unit；
Display module, for target video processing unit to be received to the test video exported after each timing sequence process signal letter
Breath is sent to target display unit and is shown, the test video information that the target display unit show be used to detect it is each to
Survey the output synchronism of video processing unit.
The video processing unit output synchronism detection method and system of above-mentioned multi-display apparatus, can be by multihead display
Multiple video processing unit outputs to be measured pass through the portions such as the video acquisition unit of the multi-display apparatus for signal is tested in device
Other video processing units (non-video processing unit to be measured) of above-mentioned multi-display apparatus point are transmitted to, using above-mentioned non-to be measured
Video processing unit controls the display that corresponding display unit carries out test video information corresponding to each test signal, with inspection
Whether the output for surveying multiple video processing units to be measured synchronizes；The synchronous detection of above-mentioned output can rely on corresponding multihead display
Device itself is completed, and the synchronous detection process of video processing unit output is effectively simplified, can also reduce corresponding detection at
This.
Detailed description of the invention
Fig. 1 is that the video processing unit of the multi-display apparatus of one embodiment exports synchronism detection method flow chart；
Fig. 2 is the multi-display apparatus schematic diagram of one embodiment；
Fig. 3 is that the timing of one embodiment replaces schematic diagram；
Fig. 4 is the multi-display apparatus schematic diagram of one embodiment；
Fig. 5 is that the timing of one embodiment replaces schematic diagram；
Fig. 6 is that the video processing unit of the multi-display apparatus of one embodiment exports the structural representation of synchronism detection system
Figure.
Specific embodiment
With reference to the accompanying drawing to the video processing unit of multi-display apparatus of the invention output synchronism detection method and
The specific embodiment of system is described in detail.
The video processing unit output synchronism detection of the multi-display apparatus of one embodiment is shown with reference to Fig. 1, Fig. 1
Method flow diagram includes the following steps:
Test signal is sent to video acquisition unit respectively using multiple video processing units to be measured by S10；
S20 receives multiple test signals in video acquisition unit, carries out timing replacement to each test signal respectively,
The corresponding timing sequence process signal of each test signal is generated, and multiple timing sequence process signals are transmitted separately to target video processing
Unit；Wherein, the target video processing unit is any one in addition to video processing unit to be measured in multi-display apparatus
Video processing unit；
Target video processing unit is received the test video information exported after each timing sequence process signal and is sent to by S30
Target display unit is shown that the test video information that the target display unit is shown is for detecting at each video to be measured
Manage the output synchronism of unit.
The video processing unit output synchronism detection method of above-mentioned multi-display apparatus can be based on multi-screen shown in Fig. 2
Display device is applied.As shown in Fig. 2, above-mentioned multi-display apparatus includes multiple video processing units, as at the first video
Manage unit 201, the second video processing unit 202 ..., N video processing unit 20N (N be it is whole more than or equal to 3
Number), above-mentioned each video processing unit respectively corresponds a display unit, and video processing unit can control its corresponding display
Unit carries out the display of corresponding video signal, and (target display is single with display unit 307 for the first video processing unit 201 in Fig. 2
Member) it is corresponding.As shown in Fig. 2, the second video processing unit 202 ..., N video processing unit 20N be video to be measured processing
Unit, the first video processing unit 201 are the non-video processing unit to be measured for showing test video information.Video processing to be measured is single
Member, such as the second video processing unit 202 ... and test signal is sent to video acquisition respectively by N video processing unit
Unit 302；Video acquisition unit 302 receives multiple test signals, can carry out timing replacement to each test signal respectively, raw
At the corresponding timing sequence process signal of each test signal, above-mentioned timing sequence process signal is transmitted to by Video Transmission Unit 303
Target video processing unit, i.e. the first video processing unit 201, the first video processing unit 201 receive each timing sequence process letter
Number, after carrying out relevant treatment to each timing sequence process signal respectively, multiple test video information of output to display unit 307 into
Row display；If test video information shown by display unit 307 is stablized, i.e., test video shown by display unit 307 is believed
The phenomenon that breath is not shaken and/or the influences such as skew show quality, then can be determined that above-mentioned second video processing unit
202 ... and the output of N video processing unit these video processing units to be measured is synchronous；If display unit 307 is shown
The test video information shown is unstable, i.e. test video information shown by display unit 307 is shaken and/or skew etc.
The phenomenon that influencing display quality, then can be determined that above-mentioned second video processing unit 202 ... and N video processing unit
The output of these video processing units to be measured is asynchronous.
In above-mentioned steps S10, the test signal that multiple video processing units to be measured are sent can be above-mentioned each view to be measured
Frequency processing unit currently controls the vision signal that respective display unit plays out, or is sent to each view to be measured in advance
Frequency processing unit, for carrying out the vision signal of these synchronizing property of video processing unit detections to be measured.
In above-mentioned steps S20, after video acquisition unit receives multiple test signals, each test signal can parse, from
Time series therein is identified in above-mentioned test signal, to be replaced to the time series in each test signal, is generated
Corresponding timing sequence process signal.The process that the above-mentioned time series in each test signal is replaced may include: will be each
Time series in a test signal replaces with the time series in any test signal.
In above-mentioned steps S30, target video processing unit receives each timing sequence process signal, can be respectively to each timing
Processing signal such as is decoded at the processing, to generate the corresponding test video information of each timing sequence process signal；Target video processing
Unit can be directed to each test video information in target display unit respectively and open a window, in above-mentioned target display unit
The corresponding display window of each test video information is formed, carries out the aobvious of each test video information using above-mentioned display window
Show.Above-mentioned display window and test video information correspond.Above-mentioned target video processing unit is corresponding with target display unit.
Display unit shows multiple test video information, if shown video information is stablized, if do not shaken, and/
Or the influences such as skew show the phenomenon that quality, then can be determined that above-mentioned video processing unit output to be measured synchronizes；If above-mentioned test
Video information show when it is unstable, shake and/or the influences such as skew show quality the phenomenon that, then can be determined that it is above-mentioned to
It is asynchronous to survey video processing unit output.
The video processing unit of multi-display apparatus provided in this embodiment exports synchronism detection method, can be by multi-screen
Multiple video processing unit outputs to be measured will test video acquisition unit of the signal by the multi-display apparatus in display device
Equal fractional transmissions to above-mentioned multi-display apparatus other video processing units (non-video processing unit to be measured), using above-mentioned non-
Video processing unit to be measured controls the display that corresponding display unit carries out test video information corresponding to each test signal,
To detect whether the output of multiple video processing units to be measured synchronizes；The synchronous detection of above-mentioned output can rely on corresponding multi-screen
Display device itself is completed, and is effectively simplified the synchronous detection process of video processing unit output, can also be reduced corresponding inspection
Survey cost.
In one embodiment, the multiple test signals of above-mentioned reception carry out timing replacement to each test signal respectively, raw
May include: at each process for testing the corresponding timing sequence process signal of signal
Multiple test signals are received, obtain the time series in each test signal respectively；
Time series in each test signal is replaced with into Goal time order sequence respectively, it is corresponding to obtain each test signal
Timing sequence process signal.
As one embodiment, above-mentioned Goal time order sequence can be the time series of any one test signal.
In the present embodiment, video acquisition unit receives multiple test signals, and carrying out respective treated process respectively can be with
As shown in figure 3, as shown in figure 3, the second video processing unit 202 ..., N video processing unit 20N will test signal respectively
It is sent to video acquisition unit 302 and carries out timing replacement, generate the corresponding timing sequence process signal of each test signal, and will be multiple
Timing sequence process signal is respectively sent to Video Transmission Unit 303 and is transmitted；In Fig. 3, the second video processing unit 202 will be surveyed
Trial signal ch1_pixclk/ch1_vs/ch1_hs/ch1_de/ch1_data is sent to video acquisition unit 302, at N video
Reason unit 20N is sent to video acquisition unit for signal chN_pixclk/chN_vs/chN_hs/chN_de/chN_data is tested
302, after video acquisition unit 302 receives above-mentioned test signal, the timing series of each test signal can be identified respectively, such as
Ch1_pixclk/ch1_vs/ch1_hs/ch1_de in ch1_pixclk/ch1_vs/ch1_hs/ch1_de/ch1_data,
ChN_pixclk/chN_vs/chN_hs/chN_de/ in chN_pixclk/chN_vs/chN_hs/chN_de/chN_data,
Each time series is replaced with into the time series (Goal time order sequence) in any one test signal respectively, such as chX_
Pixclk/chX_vs/chX_hs/chX_de/, above-mentioned Goal time order sequence are the time series of any one test signal,
In, if chX is ch1, above-mentioned Goal time order sequence is ch1_pixclk/ch1_vs/ch1_hs/ch1_de, if chX is chN,
Then above-mentioned Goal time order sequence is chN_pixclk/chN_vs/chN_hs/chN_de；Video acquisition unit 302 is respectively to each
After testing signal progress timing replacement, the timing sequence process signal exported includes the corresponding chX_ of the second video processing unit 202
The pixclk/chX_vs/chX_hs/chX_de/ch1_data and corresponding chX_pixclk/ of N video processing unit 20N
chX_vs/chX_hs/chX_de/chN_data。
It in one embodiment, can be as shown in figure 4, two video processing units to multi-display apparatus, the second view
Frequency processing unit 202, third video processing unit 203 carry out output synchronism detection, the second video processing unit 202 and the
Three video processing units 203 are video processing unit to be measured, and the first video processing unit 201 is the non-of display test video information
Video processing unit to be measured.Refering to what is shown in Fig. 5, the second video processing unit 202 will test signal ch1_pixclk/ch1_vs/
Ch1_hs/ch1_de/ch1_data is sent to video acquisition unit 302, and third video processing unit 203 will test signal ch2_
Pixclk/ch2_vs/ch2_hs/ch2_de/ch2_data is sent to video acquisition unit 302, and video acquisition unit 302 receives
After above-mentioned test signal, it can identify that the timing series of above-mentioned two test signal, such as the second video processing unit 202 are right respectively
Ch2_ corresponding to the ch1_pixclk/ch1_vs/ch1_hs/ch1_de and third video processing unit 203 answered
Pixclk/ch2_vs/ch2_hs/ch2_de, then above-mentioned two timing series are replaced with into the second video processing unit 202 respectively
Corresponding ch1_pixclk/ch1_vs/ch1_hs/ch1_de (Goal time order sequence), it is right to obtain the second video processing unit 202
The timing sequence process signal ch1_pixclk/ch1_vs/ch1_hs/ch1_de/ch1_data and third video processing unit answered
Timing sequence process signal ch1_pixclk/ch1_vs/ch1_hs/ch1_de/ch2_data corresponding to 203, to complete above-mentioned
The timing replacement of two test signals, generates timing sequence process signal, and above-mentioned two timing sequence process signal is respectively sent to regard
Frequency transmission unit 303 is transmitted.
In one embodiment, test signal is sent to video respectively and adopted by the multiple video processing units to be measured of above-mentioned utilization
Collect unit the step of may include:
Corresponding display unit is controlled respectively using multiple video processing units to be measured and shows the same video, will be exported extremely
The vision signal of respective display unit is sent to video acquisition unit as test signal.
It is above-mentioned that target video processing unit is received to the test exported after each timing sequence process signal as one embodiment
Video information is sent to target display unit and is shown, the test video information that the target display unit is shown is for detecting
Can also include: after the step of output synchronism of each video processing unit to be measured
Whether the display progress for detecting multiple test video information shown by target display unit is consistent；
If so, determining that video processing unit output to be measured synchronizes；
If the progress of display is inconsistent, determine that video processing unit output to be measured is asynchronous.
The present embodiment by the same video in broadcasting be divided into multi-channel test signal be sent to video acquisition unit carry out when
Sequence replacement, since display progress of the above-mentioned multi-channel test signal in the corresponding display unit of each video processing unit to be measured is
The same, therefore, by determining that the display progress of multiple test video information shown by target display unit can be realized
Video processing unit output synchronism detection to be measured, is effectively simplified detection process, ensure that the accuracy of detection.
In one embodiment, above-mentioned that target video processing unit is received to the test exported after each timing sequence process signal
Video information is sent to the process that target display unit is shown
After target video processing unit receives multiple timing sequence process signals, control target video processing unit is for each
Timing sequence process signal opens a window in target display unit, obtains the corresponding display window of each timing sequence process signal；
The corresponding test video information of different timing sequence process signals is shown in each display window respectively.
The present embodiment opens a window in target display unit, obtains the corresponding display window of each timing sequence process signal, exists respectively
Above-mentioned each display window carries out the display of different test video information, it is ensured that above-mentioned test video information shows orderly
Property.
It is above-mentioned that target video processing unit is received to the test exported after each timing sequence process signal as one embodiment
Video information is sent to target display unit and is shown, the test video information that the target display unit is shown is for detecting
After the step of output synchronism of each video processing unit to be measured further include:
It is whether corresponding with corresponding test signal with reference to view that the test video information that each display window is shown is detected respectively
Frequency is consistent；
If so, determining that video processing unit output to be measured synchronizes；
If it is not, then determining that video processing unit output to be measured is asynchronous.
The corresponding video of above-mentioned test signal can in the corresponding display unit of multiple video processing units to be measured or
Person's other display equipment is shown respectively, to obtain the corresponding reference video of each test signal.Utilize above-mentioned reference video
Corresponding test video information is detected respectively, if test video information it is corresponding reference video it is consistent, determine
Video processing unit output to be measured synchronizes；Otherwise determine that video processing unit output to be measured is asynchronous.The present embodiment can pass through
Determine whether video jitter number and/or video size ratio are consistent, to judge the consistent of test video information and reference video
Property.
It is above-mentioned that target video processing unit is received to the test exported after each timing sequence process signal as one embodiment
Video information is sent to target display unit and is shown, the test video information that the target display unit is shown is for detecting
After the step of output synchronism of each video processing unit to be measured further include:
The display characteristic information for separately winning the test video information for taking each display window to show judges the display feature letter
Whether breath belongs to preset range；Wherein it is described display characteristic information include test video information display when jitter feature and/or
Size characteristic；
If so, determining that video processing unit output to be measured synchronizes；
If it is not, then determining that video processing unit output to be measured is asynchronous.
Above-mentioned preset range can be configured according to the particular content of display characteristic information.If display characteristic information includes
Jitter feature, then above-mentioned preset range can be set to shake number less than or equal to 1 time；If showing, characteristic information includes size
Feature, then above-mentioned preset range can be set to the range that original size ratio value subtracts 0.5 and add to original size ratio value 0.5.
It is above-mentioned to show the corresponding test view of different timing sequence process signals in each display window respectively as one embodiment
Before the step of frequency information further include:
Processing is decoded to each timing sequence process signal respectively, obtains the corresponding test video of each timing sequence process signal
Information.
The present embodiment is decoded processing to each timing sequence process signal respectively using target video processing unit, obtains each
The corresponding test video information of a timing sequence process signal, then accordingly shown, it is ensured that display quality, to improve corresponding
Detection effect.
Refering to what is shown in Fig. 6, the video processing unit that Fig. 6 is the multi-display apparatus of one embodiment exports synchronism detection
System structure diagram, comprising:
Sending module 10, for test signal to be sent to video acquisition list respectively using multiple video processing units to be measured
Member；
Generation module 20, for receiving multiple test signals in video acquisition unit, respectively to each test signal into
The replacement of row timing generates the corresponding timing sequence process signal of each test signal, and multiple timing sequence process signals is transmitted separately to
Target video processing unit；Wherein, the target video processing unit is that video processing unit to be measured is removed in multi-display apparatus
Any one outer video processing unit；
Display module 30, for target video processing unit to be received the test video exported after each timing sequence process signal
Information is sent to target display unit and is shown, the test video information that the target display unit is shown is each for detecting
The output synchronism of video processing unit to be measured.
The video processing unit output synchronism detection system and the present invention of multi-display apparatus provided by the invention provide
Multi-display apparatus video processing unit output synchronism detection method correspond, in the view of the multi-display apparatus
The technical characteristic and its advantages that the embodiment that frequency processing unit exports synchronism detection method illustrates are aobvious suitable for multi-screen
In the embodiment of the video processing unit output synchronism detection system of showing device, hereby give notice that.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
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| CN201610768152.5A CN106303451B (en) | 2016-08-30 | 2016-08-30 | The video processing unit output synchronism detection method and system of multi-display apparatus |
| PCT/CN2017/096269 WO2018040856A1 (en) | 2016-08-30 | 2017-08-07 | Method and system for detecting synchronisation of outputs of video processing units of multi-screen display apparatus |
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| CN201610768152.5A CN106303451B (en) | 2016-08-30 | 2016-08-30 | The video processing unit output synchronism detection method and system of multi-display apparatus |
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| CN106303451B (en) * | 2016-08-30 | 2019-03-01 | 广东威创视讯科技股份有限公司 | The video processing unit output synchronism detection method and system of multi-display apparatus |
| CN108900833A (en) * | 2018-07-17 | 2018-11-27 | 威创集团股份有限公司 | A kind of combination screen synch detection method, device, system and equipment |
| CN113766215B (en) * | 2021-09-07 | 2024-06-25 | 中电科航空电子有限公司 | Method and system for synchronously testing broadcast of passengers in airborne passenger cabin |
| CN116366900B (en) * | 2023-04-13 | 2024-03-19 | 神力视界(深圳)文化科技有限公司 | Synchronous display methods, devices, terminals, systems, media and program products |
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| US7499044B2 (en) * | 2003-10-30 | 2009-03-03 | Silicon Graphics, Inc. | System for synchronizing display of images in a multi-display computer system |
| CN100546391C (en) * | 2007-03-09 | 2009-09-30 | 北京牡丹视源电子有限责任公司 | Digital TV video and audio synchronous method of measurement |
| CN101404151B (en) * | 2008-08-04 | 2011-11-09 | 广东威创视讯科技股份有限公司 | Multi-screen splicing apparatus and method |
| CN101645261B (en) * | 2009-08-10 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Line-field synchronous time sequence control method for separated screens in multi-screen display technique and system thereof |
| US9699446B2 (en) * | 2010-04-05 | 2017-07-04 | Tektronix, Inc. | Test and measurement device, system, and method for providing synchronized measurement views |
| CN103733616A (en) * | 2011-07-29 | 2014-04-16 | 三星电子株式会社 | Synchronization method of display device, synchronization method of glasses device, synchronization method of display device and glasses device |
| CN102622196B (en) * | 2012-02-10 | 2015-02-18 | 江苏清投视讯科技有限公司 | Network transmission based picture synchronization technology for multi-screen display system |
| CN103236243B (en) * | 2013-04-24 | 2016-03-30 | 青岛海信电器股份有限公司 | A kind of display device and televisor |
| CN104766562B (en) * | 2015-04-16 | 2017-06-16 | 深圳市华星光电技术有限公司 | The driving method and drive system of a kind of display panel |
| CN106303451B (en) * | 2016-08-30 | 2019-03-01 | 广东威创视讯科技股份有限公司 | The video processing unit output synchronism detection method and system of multi-display apparatus |
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| CN106303451A (en) | 2017-01-04 |
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