CN206332779U - The test device of synchronism detection polymorphic type video interface - Google Patents
The test device of synchronism detection polymorphic type video interface Download PDFInfo
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- CN206332779U CN206332779U CN201621408667.6U CN201621408667U CN206332779U CN 206332779 U CN206332779 U CN 206332779U CN 201621408667 U CN201621408667 U CN 201621408667U CN 206332779 U CN206332779 U CN 206332779U
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Abstract
The utility model provides a kind of test device of synchronism detection polymorphic type video interface, including at least two converters that input signal is changed into same type output signal, one possesses output signal is converted into the signal picker of VGA signals and one possesses the display of VAG interfaces；Tested video display apparatus has a plurality of different type video interfaces, and tested video display apparatus is connected with each converter, and each converter is connected to signal picker, signal picker connection display.The utility model only needs the common VGA display can be while completing the test of multiple different type video interfaces, simplify production test environment well, both considerable display device cost input had been saved, also counter top space is saved, the demand of production site is reduced, facilitates building for production test environment, it is effectively improved testing efficiency, avoid the operational error easily occurred because work top is crowded, it is to avoid product missing inspection, improve product quality.
Description
【Technical field】
The utility model is related to video display apparatus detection field, more particularly to a kind of synchronism detection polymorphic type video interface
Test device.
【Background technology】
At present, many video display apparatus (for example, TV, flat board etc.) are all provided simultaneously with multiple different types of videos and connect
Mouth (for example, USB interface, HDMI, DVI interface), to export different types of vision signal, therefore, in product export
Before, it is necessary to the performance to each video interface is tested.Can the general signal exported by test video interface normally show
Show to judge whether the video interface is normal, and this is accomplished by using multiple displays for possessing different type video interface.One side
Face factory needs to purchase the display that many possesses different type interface type, and buying cost of equipment is higher, on the one hand due to aobvious
Show that the volume of device is relatively large, larger work top can be taken, cause natively very limited work top to become more to gather around
Squeeze, working space substantially diminishes.Test and operation inconvenience largely effect on production operation efficiency, even result in operational error, cause
Defective products is lost and examines shipment, product turnout quality is influenceed.
Current published patent document CN 205005154U, publication date is 2016.01.27 invention《High resolution audio and video
Collector》, its specific disclosure is：Composite Video Baseband Signal input interface, the color difference components interface of Analog Component Video,
Audio input interface is electrically connected by the analog-digital converter with the input of the controller respectively, the controller
Output end is electrically connected by the usb protocol converter with the USB output interfaces.It will be apparent that the purpose of the patent is video
Collection, output digit signals carry out decoding for back end interface and used, and it directly uses different classes of video interface, will be from CVBS
Input interface, YPBPR interfaces, the analog signal of audio input interface input are respectively converted into data signal, final output
Be USB interface specific protocol data signal.First, the data signal can not be directly displayed on a display screen, thus
The technical problem to be solved in the present invention can not be solved by the technical scheme --- while to the input signal of all kinds interface
Tested；Secondly, the present invention is that the output signal of all kinds interface is unified by conversion corresponding with the output signal
Device is converted into after unified CVBS signals, and reconvert is directly output to VGA into VGA signals and shows screen display, so as to realize one
Individual common VGA displays, you can while completing the test of multiple different type video interfaces, therefore, technical solution of the present invention
Technical scheme with the patent is also entirely different, and technical inspiration is not present in the two.
【The content of the invention】
The technical problems to be solved in the utility model, is the test dress for providing a kind of synchronism detection polymorphic type video interface
Put, the common VGA displays of its need one, you can while the test of multiple different type video interfaces is completed, it is simple well
Change production test environment, both saved considerable purchase display device cost input, also save counter top space, reduce life
The demand in place is produced, facilitates building for production test environment, is effectively improved testing efficiency, it is to avoid because work top is gathered around
The operational error squeezed and easily occurred, it is to avoid product missing inspection, improves product quality.
What the utility model was realized in：
The test device of synchronism detection polymorphic type video interface, including at least two by input signal change into same type output
The converter of signal, one possesses the output signal is converted into the signal picker of VGA signals and one possesses VAG interfaces
Display；Tested video display apparatus has a plurality of different type video interfaces, the tested video display apparatus with each turn
Parallel operation is connected, and each converter is connected to the signal picker, and the signal picker connects the display.
Further, the video interface of the tested video display apparatus include it is following at least two：CVBS interfaces,
USB interface, HDMI or DVI interface.
Further, the converter converts input signals into CVBS signals.
Further, when the input signal of the converter is VGA signals, then it is provided with the converter and automatically configures mould
Block.
Further, CVBS signals are converted into VAG signals by the signal picker.
The utility model by converter, signal picker, display screen split screen display available, realize only need a display
The display of the output signal of the different type video interface from a tested video display apparatus can be presented simultaneously, realize
Simultaneous display tests multiple different types of video interfaces.The program only needs a common VGA display, without using multiple
The display of distinct interface, so as to simplify production test environment well, had both saved considerable display device cost input,
Counter top space is saved, the demand of production site is reduced, facilitates building for production test environment, be effectively improved test
Efficiency, it is to avoid the operational error easily occurred because work top is crowded, it is to avoid product missing inspection, improves product quality.
【Brief description of the drawings】
The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the preferred embodiment of the utility model one.
【Embodiment】
Refer to shown in Fig. 1 and Fig. 2, embodiment of the present utility model is described in detail.
The test device of synchronism detection polymorphic type video interface, including at least two by input signal change into same type output
The converter 2 of signal, one, which possesses the signal picker 3 and one that the output signal is converted into VGA signals, possesses VAG interfaces
Display 4；Tested video display apparatus 1 has a plurality of different type video interfaces, the tested video display apparatus 1 with
Each converter 2 is connected, and each converter 2 is connected to the signal picker 3, and the signal picker connection is described aobvious
Show device 4.
In a preferred embodiment, the video interface of the tested video display apparatus 1 include it is following at least two
Kind：CVBS interfaces, USB interface, HDMI or DVI interface.
In a preferred embodiment, the converter 2 converts input signals into CVBS signals.
CVBS signals are converted into VAG signals by the signal picker 3.
Operation principle of the present utility model is：It is first true according to the video interface number and type of tested video display apparatus 1
Recognize the number of converter 2 of needs, then connect each converter 2 with corresponding video interface respectively.Set when tested video is shown
On standby 1 after electricity, each converter 2 obtains the signal of the tested correspondence of video display apparatus 1 video interface, and by various video interfaces
Signal is uniformly converted into CVBS signals, is then then forwarded to signal picker 3, and signal picker 3 receives the multichannel after conversion
CVBS signals, and uniformly by CVBS signals reconvert into VGA signals, then re-send to display screen 4；Display screen 4 is according to split screen
Scheme is shown to the VGA signals of reception.Prestore scheme for screen-splitting display in display screen 4, according to tested video display apparatus 1
Video interface number, the suitable scheme for screen-splitting display of selection.For example, when the video interface number of tested video display apparatus 1 is
At four, the scheme for screen-splitting display of 2*2 (whole four screens of picture average mark) can be selected.When tested video display apparatus 1
When video interface number is six, the split screen display available of 3*2 (whole picture is divided into two rows, and often row shows three smaller screens) can be selected
Scheme.
The utility model also provides a preferred embodiment：
Referring to Fig. 2, so that the output signal of converter 2 is CVBS signals as an example：
The present embodiment includes upper CVBS interfaces, USB interface, HDMI and DVI interface.The converter 2, which will be inputted, to be believed
Number it is converted into CVBS signals.Specific, the type of the converter 2 is corresponding with input signal, for example, connection HDMI
Converter 2, CVBS signals are converted into by HDMI signals.When the video interface of video display apparatus 1 is CVBS interfaces, it need not
Changed by converter 2, directly input the signal picker 3, i.e. when the input signal of converter 2 is identical with output signal
When, converter 2 can be without being cost-effective, typically no longer accessing converter 2.The signal picker 3 is that possess CVBS
Signal is converted into the signal picker 3 of VGA signals.Each CVBS signals of reception are converted into VGA signals by signal picker 3,
And it is conveyed to display screen 4 (split screen display available) respectively by USB interface, four regions on same display screen 4 are shown respectively
Corresponding vision signal, facilitates testing staff to examine and judges whether each road signal is normal, so as to reach while testing all types of regard
The purpose of frequency interface.
In the above-described embodiments, interior be provided with of the converter 2 that VGA signals are converted into CVBS signals automatically configures module
21.In the prior art, after the VGA signals of the USB interface transmission of tested video display apparatus enter converter 2, if the VGA believes
Number it is 800*600,1024*768 etc. 4:3 mark screen resolution ratio, then converter 2 can the automatic identification resolution ratio.When the VGA signals are
1280*720 etc. 16:During the resolution ratio of 9 widescreens, converter 2 can not the automatic identification resolution ratio, such converter 2 is directly by 16:
The VGA signals of 9 widescreen resolution ratio are converted into being shown by signal picker again after CVBS signals, and display picture, which occurs, trembles
Move and can not watch whether output is normal, so as to can not judge whether the USB interface of tested video display apparatus is normal.At this moment,
Tester's manual configuration parameter is needed, for example left and right scaling size HSIZE, up and down scaling size VSIZE, so that conversion
Device 2 recognizes the automatic VGA signals for arriving widescreen resolution ratio.And after 2 times electricity of converter, when restarting again, converter 2 recovers initial
Set, still can not automatic identification 16:The VGA signals of 9 widescreen resolution ratio.So, in the utility model, when need test widescreen
During the tested video display apparatus 1 of resolution ratio, it is provided with and automatically configures in the converter 2 that VGA signals are converted into CVBS signals
Module 21 (i.e. single-chip microcomputer), is automatically configured when restarting every time to the parameter (HSIZE, VSIZE) in converter 2, big generous
Just detect.
The signal of all types of video interfaces is converted into CV BS signals by the utility model by converter unification, then is passed through
CVBS signals are converted into VGA signal outputs to VGA display screens by the signal picker, connect all types of videos so as to realize
The signal of mouth is unified to be exported, and so only need to set a VGA display screen, you can realize the test to various video interface.
, can be very dexterously only using a most common and cheap VGA display, it is possible to same by this test device
Different video interface on the tested display device of step display, so as to save multiple display apparatus.
Although the foregoing describing embodiment of the present utility model, those familiar with the art should
Work as understanding, the specific embodiment described by us is merely exemplary, rather than for the limit to scope of the present utility model
Fixed, those of ordinary skill in the art should in the equivalent modification and change made according to spirit of the present utility model
Cover in scope of the claimed protection of the present utility model.
Claims (5)
1. the test device of synchronism detection polymorphic type video interface, it is characterised in that：Input signal is changed into including at least two
The converter of same type output signal, one possesses the signal picker and a tool that the output signal is converted into VGA signals
The display of standby VAG interfaces；Tested video display apparatus has a plurality of different type video interfaces, and the tested video is shown
Equipment is connected with each converter, and each converter is connected to the signal picker, and the signal picker connects institute
State display.
2. the test device of synchronism detection polymorphic type video interface as claimed in claim 1, it is characterised in that：Described be tested regards
The video interface of frequency display device include it is following at least two：CVBS interfaces, USB interface, HDMI or DVI interface.
3. the test device of synchronism detection polymorphic type video interface as claimed in claim 1, it is characterised in that：The converter
Convert input signals into CVBS signals.
4. the test device of synchronism detection polymorphic type video interface as claimed in claim 3, it is characterised in that：The converter
Input signal when being VGA signals, then in the converter provided with automatically configuring module.
5. the test device of synchronism detection polymorphic type video interface as claimed in claim 1, it is characterised in that：The signal is adopted
CVBS signals are converted into VAG signals by storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621408667.6U CN206332779U (en) | 2016-12-21 | 2016-12-21 | The test device of synchronism detection polymorphic type video interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621408667.6U CN206332779U (en) | 2016-12-21 | 2016-12-21 | The test device of synchronism detection polymorphic type video interface |
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| CN206332779U true CN206332779U (en) | 2017-07-14 |
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| CN201621408667.6U Active CN206332779U (en) | 2016-12-21 | 2016-12-21 | The test device of synchronism detection polymorphic type video interface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372076A (en) * | 2020-03-04 | 2020-07-03 | 京东方科技集团股份有限公司 | System and method for testing stability of video interface |
| CN111526356A (en) * | 2020-03-24 | 2020-08-11 | 福建星网视易信息系统有限公司 | Automatic testing method and device for multi-channel video interface |
-
2016
- 2016-12-21 CN CN201621408667.6U patent/CN206332779U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111372076A (en) * | 2020-03-04 | 2020-07-03 | 京东方科技集团股份有限公司 | System and method for testing stability of video interface |
| WO2021174978A1 (en) * | 2020-03-04 | 2021-09-10 | 京东方科技集团股份有限公司 | Testing system and testing method for video interface stability |
| CN111372076B (en) * | 2020-03-04 | 2021-09-21 | 京东方科技集团股份有限公司 | System and method for testing stability of video interface |
| US11917125B2 (en) | 2020-03-04 | 2024-02-27 | Boe Technology Group Co., Ltd. | Test system and test method for stability of video interface |
| CN111526356A (en) * | 2020-03-24 | 2020-08-11 | 福建星网视易信息系统有限公司 | Automatic testing method and device for multi-channel video interface |
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