CN101754043A - Video measuring device and video measuring method - Google Patents
Video measuring device and video measuring method Download PDFInfo
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- CN101754043A CN101754043A CN200810218142A CN200810218142A CN101754043A CN 101754043 A CN101754043 A CN 101754043A CN 200810218142 A CN200810218142 A CN 200810218142A CN 200810218142 A CN200810218142 A CN 200810218142A CN 101754043 A CN101754043 A CN 101754043A
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Abstract
The present invention is suitable for the technical field of TV, which provides a video measuring device and a video measuring method. The video measuring method comprises the following steps: a. signals output by a movement plate are transmitted to the video measuring device; b. the signals output by the movement plate is converted into output signals matched with a display device by the video measuring device, and the output signals are output to the display device; c. the display device is used for displaying according to the output signals. When abnormal conditions are displayed, factory testers and other personals can directly judge that the generating reasons of the abnormal conditions are because the output signals of the movement plate are also flat-plate TV display screens, so the operation is simplified, the study cost is reduced, and the production efficiency is improved.
Description
Technical field
The invention belongs to TV technology, relate in particular to the technology that the panel TV vision signal is handled.
Background technology
It has been trend of the times that panel TV replaces traditional CRT (cathode ray tube) TV, and in the production process of panel TV, the signal that the output signal of machine core board (scheme chip) and dull and stereotyped tv display screen can receive is must be compatible.
Because different panel TV display screens have different separately input characteristics from different producers, the panel TV manufacturer need join screen work in the specifications and models of changing display screen or after adopting different suppliers' display screen.Because panel display screen supplier's continuous increase, and the continual renovation of flat display technology, the manufacturer of panel TV is also constantly adopting the new model and the flat-panel monitor of specification, perhaps often changes the supplier of flat-panel monitor.
Therefore, in actual production, still exist the output signal of machine core board and the signal that display screen can receive can not be compatible, cause situation about going wrong, as display abnormality or the like.After these problems occur, on final product, directly join the technical scheme of shielding parametric test because of having now to join to adopt in the screen technology, it is that the output signal of machine core board has problem that existing technical scheme is difficult to directly to judge, or display screen has problem to the reception of signal.The research staff can only change other screen test; Perhaps corresponding screen is changed on other scheme and verified, whether the output of the direct proof machine central layer signal of having no idea has problem.This does not singly increase R﹠D costs, more incurs loss through delay the production time.
Therefore, need a kind of technical scheme, judge directly in the time of can occurring in above-mentioned problem that the reason of its generation is that the output signal of machine core board still is the panel TV display screen.
Summary of the invention
The object of the present invention is to provide a kind of video measuring device and video measuring method, be intended to solve the problem that panel TV machine core board output signal is tested.
The present invention is achieved in that a kind of video measuring device, and described video measuring device comprises signal sampling module, signal identification module, signal convergent-divergent processing module and signal output module, wherein:
Described signal sampling module is used for the signal of receiver central layer output, and is used for described signal is carried out sampling processing, and sampled result is transferred to described signal identification module;
Described signal identification module is used for the sampled result of described signal sampling module transmission is analyzed, and obtains the information of described signal, and the signal message that is obtained is transferred to described signal convergent-divergent processing module;
Described signal convergent-divergent processing module is used for according to the output signal call format of described signal message and described signal output module feedback, convert described signal to satisfy described output signal call format output signal by the convergent-divergent computing, and the output signal after will changing is transferred to signal output module;
Described signal output module is used for that described output signal is transferred to display unit and shows, and is used for described output signal call format is fed back to described signal convergent-divergent processing module.
The signal of described machine core board output is the TTL signal.
Described video measuring device also comprises signal conversion module, and described signal conversion module is used for the LVDS conversion of signals of described machine core board output is become digital signal, and described digital data transmission is arrived described signal sampling module.
Described signal message comprises capable field synchronization, field frequency and the total pixel of row of described signal.
Described output signal form is determined according to the signal format of described display unit.
The present invention also provides a kind of video measuring method, and described method comprises:
A, the signal that machine core board is exported are transferred to video measuring device;
B, described video measuring device become the output signal of mating with display unit with the conversion of signals of described machine core board output, and described output signal is outputed to described display unit;
C, described display unit show according to described output signal.
The output signal of described machine core board is TTL signal or LVDS signal.
Wherein step b specifically comprises:
The LVDS conversion of signals that b1, described video measuring device are exported described machine core board is to sample after the digital signal or the TTL signal of described machine core board output is sampled;
B2, be to satisfy the output signal of described output signal call format with described conversion of signals, described output signal is outputed to described display unit according to sampled result with to the call format of output signal.
Described display unit is the VGA display, and described output signal form is the VGA form.
Wherein also comprise after the step c:
Whether the signal of judging described machine core board output according to the display result of described display unit is normal.
The present invention overcomes the deficiencies in the prior art, a kind of video measuring device is provided, directly output signal to this video measuring device by machine core board, this video measuring device number converts the output of machine core board to the display unit coupling output signal, exporting to display unit then shows, when display unit shows just often, illustrate that the machine core board output signal is normal, otherwise explanation machine core board output signal is undesired.Technical scheme provided by the invention makes when the situation of display abnormality occurs, factory testing personnel and other staff can judge directly that the reason of its generation is that the output signal of machine core board still is the panel TV display screen, simplify operation, reduced R﹠D costs, and improved production efficiency.
Description of drawings
Fig. 1 is video measuring device and machine core board and the display unit connection diagram that the embodiment of the invention provides;
Fig. 2 is the video measuring device schematic diagram that the embodiment of the invention provides;
Fig. 3 is an embodiment of the invention flow chart.
Embodiment
Technical scheme provided by the invention is: a kind of video measuring device is provided, directly output signal to this video measuring device by machine core board, this video measuring device number converts the output of machine core board to the display unit coupling output signal, exporting to display unit then shows, when display unit shows just often, illustrate that the machine core board output signal is normal, otherwise explanation machine core board output signal is undesired.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 1 uses schematic diagram for video measuring device of the present invention, as shown in Figure 1, when using video measuring device provided by the invention that the signal of machine core board output is tested, the output signal of machine core board is exported to video measuring device, convert the output signal of mating to by it with display unit, export to display unit (display unit adopts general display unit, does not need to join screen and handles, as display etc.).Whether the output signal of judging machine core board (scheme chip) by the display result of display unit has problem, and normal if display unit shows, then the output signal of machine core board is normal, and reason that can decision problem is display screen.
The schematic diagram of the video measuring device that the embodiment of the invention provides comprises signal conversion module, signal sampling module, signal identification module, signal convergent-divergent processing module, signal output module as shown in Figure 2, wherein:
Signal conversion module, the signal transition of input being come in by A/D (Analog to Digital mould/number conversion) conversion becomes digital signal, LVDS (Low Voltage DifferentialSignaling as machine core board output, the Low Voltage Differential Signal transmission) conversion of signals becomes digital signal, for sampling; If or the signal that input is come in has been digital signal, with regard to the bypass signal modular converter, direct entering signal sampling module is as TTL (Transistor-Transistor Logic, transistor-transistor logic level) signal;
The signal sampling module by to the sampling of digital signal after the conversion, and is transferred to the signal identification module with sampled result;
The signal identification module is analyzed the sampled result of signal sampling module transmission, according to the relevant information of signal, as row field synchronization, field frequency, the total pixel of row or the like, discerns the form of input signal, and these message transmission are arrived signal convergent-divergent processing module;
Signal convergent-divergent processing module is used for carrying out format conversion, with the format conversion one-tenth of input signal and the signal format of display unit format match, according to needed output signal form, input signal is converted to the output signal of needed form by the convergent-divergent computing, and the output signal after will changing is transferred to signal output module, needed output signal form is determined according to the signal format of display unit, is fed back to signal convergent-divergent processing module by signal output module;
Signal output module, needed output signal form is fed back to signal convergent-divergent processing module, and to carrying out D/A conversion (Digital to Analog D/A switch) through the output signal after the conversion of signal convergent-divergent processing module, the signal after convergent-divergent is handled is converted into the standard signal that display unit is accepted.
Can export the signal (as VGA) of multiple form as required, but need give signal convergent-divergent processing module, could export the unlike signal form by handling with this feedback information.
In the specific embodiment of the present invention, the signal sampling module in the above-mentioned video measuring device, signal identification module, signal convergent-divergent processing module can realize by the TV process chip.
After video measuring device that the embodiment of the invention is provided and machine core board and display unit connect, input signal is an example with the signal of LVDS, output signal is an example with the VGA signal, below specifies video measuring device that the embodiment of the invention the provides flow process to signal processing, as shown in Figure 3:
1, machine core board output LVDS signal is given video measuring device;
2, after the signal conversion module of video measuring device receives the LVDS signal, be transferred to the signal sampling module after converting thereof into digital signal;
3, the signal sampling module is sampled to the signal of signal conversion module input, and sampled result is transferred to the signal identification module;
4, the signal identification module analyzes the relevant information of signal according to the sampled result of signal sampling module transmission, as row field synchronization, field frequency, the total pixel of row or the like, and with these message transmission to signal convergent-divergent processing module;
5, signal convergent-divergent processing module is the signal that meets the requirements and export according to the signal message and the signal output module feedack of the input of signal identification module with the conversion of signals of importing;
6, the signal after signal convergent-divergent processing module will be changed outputs to display unit, and display unit shows according to the signal that receives.
At this moment, whether the factory testing personnel can judge normally whether the output signal of machine core board is normal according to the demonstration of display unit, if display unit shows normal, illustrate that then the machine core board output signal is normal, display screen is to the reception existing problems of signal, otherwise explanation machine core board output signal is undesired.
What need export as signal output module is the VGA signal, signal output module feeds back to signal convergent-divergent processing module with the control signal of correspondence, the convergent-divergent processing module is according to this control signal, when handling, convergent-divergent comes processing signals according to the VESA standard, with the VGA signal of outputting standard, so support the display device of VESA standard can show last output signal arbitrarily.
As mentioned above, technical scheme provided by the invention makes the output signal of machine core board directly to observe by general display unit, whether the output signal of judging machine core board in view of the above has problem, can not be compatible at the signal that output signal and display screen at machine core board can receive, when causing problem to occur, with the output signal branch of display screen and the machine core board independent analysis that comes, avoided because of change the screen operation required carry out join screen work in a large number, can more effective analysis deal with problems.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a video measuring device is characterized in that, described video measuring device comprises signal sampling module, signal identification module, signal convergent-divergent processing module and signal output module, wherein:
Described signal sampling module is used for the signal of receiver central layer output, and is used for described signal is carried out sampling processing, and sampled result is transferred to described signal identification module;
Described signal identification module is used for the sampled result of described signal sampling module transmission is analyzed, and obtains the information of described signal, and the signal message that is obtained is transferred to described signal convergent-divergent processing module;
Described signal convergent-divergent processing module is used for according to the output signal call format of described signal message and described signal output module feedback, convert described signal to satisfy described output signal call format output signal by the convergent-divergent computing, and the output signal after will changing is transferred to signal output module;
Described signal output module is used for that described output signal is transferred to display unit and shows, and is used for described output signal call format is fed back to described signal convergent-divergent processing module.
2. video measuring device according to claim 1 is characterized in that, the signal of described machine core board output is the TTL signal.
3. video measuring device according to claim 1, it is characterized in that, also comprise signal conversion module, described signal conversion module is used for the LVDS conversion of signals of described machine core board output is become digital signal, and described digital data transmission is arrived described signal sampling module.
4. video measuring device according to claim 1 is characterized in that, described signal message comprises capable field synchronization, field frequency and the total pixel of row of described signal.
5. video measuring device according to claim 1 is characterized in that, described output signal form is determined according to the signal format of described display unit.
6. video measuring method, described method comprises:
A, the signal that machine core board is exported are transferred to video measuring device;
B, described video measuring device become the output signal of mating with display unit with the conversion of signals of described machine core board output, and described output signal is outputed to described display unit;
C, described display unit show according to described output signal.
7. method according to claim 6 is characterized in that, the output signal of described machine core board is TTL signal or LVDS signal.
8. method according to claim 6 is characterized in that, wherein step b specifically comprises:
The LVDS conversion of signals that b1, described video measuring device are exported described machine core board is to sample after the digital signal or the TTL signal of described machine core board output is sampled;
B2, be to satisfy the output signal of described output signal call format with described conversion of signals, described output signal is outputed to described display unit according to sampled result with to the call format of output signal.
9. method according to claim 6 is characterized in that, described display unit is the VGA display, and described output signal form is the VGA form.
10. method according to claim 6 is characterized in that, wherein also comprises after the step c:
Whether the signal of judging described machine core board output according to the display result of described display unit is normal.
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| CN200810218142A CN101754043A (en) | 2008-12-09 | 2008-12-09 | Video measuring device and video measuring method |
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| CN200810218142A CN101754043A (en) | 2008-12-09 | 2008-12-09 | Video measuring device and video measuring method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170580A (en) * | 2011-03-16 | 2011-08-31 | 深圳Tcl新技术有限公司 | Television testing method, device and system |
| CN102868903A (en) * | 2011-07-05 | 2013-01-09 | 纬创资通股份有限公司 | Polarized panel system and stereoscopic image system |
| CN104270632A (en) * | 2014-09-29 | 2015-01-07 | 深圳创维－Rgb电子有限公司 | Measuring instrument and method for screen parameters of television set |
| CN106157859A (en) * | 2016-09-27 | 2016-11-23 | 京东方科技集团股份有限公司 | For detecting the method and device of Low Voltage Differential Signal |
| WO2017113704A1 (en) * | 2015-12-31 | 2017-07-06 | 乐视控股（北京）有限公司 | Television core board testing apparatus |
| CN107038993A (en) * | 2017-05-23 | 2017-08-11 | 西安诺瓦电子科技有限公司 | parameter adjusting method and device, display system |
-
2008
- 2008-12-09 CN CN200810218142A patent/CN101754043A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170580A (en) * | 2011-03-16 | 2011-08-31 | 深圳Tcl新技术有限公司 | Television testing method, device and system |
| CN102170580B (en) * | 2011-03-16 | 2014-08-20 | 深圳Tcl新技术有限公司 | Television testing method, device and system |
| CN102868903A (en) * | 2011-07-05 | 2013-01-09 | 纬创资通股份有限公司 | Polarized panel system and stereoscopic image system |
| CN104270632A (en) * | 2014-09-29 | 2015-01-07 | 深圳创维－Rgb电子有限公司 | Measuring instrument and method for screen parameters of television set |
| CN104270632B (en) * | 2014-09-29 | 2017-01-18 | 深圳创维－Rgb电子有限公司 | Measuring instrument and method for screen parameters of television set |
| WO2017113704A1 (en) * | 2015-12-31 | 2017-07-06 | 乐视控股（北京）有限公司 | Television core board testing apparatus |
| CN106157859A (en) * | 2016-09-27 | 2016-11-23 | 京东方科技集团股份有限公司 | For detecting the method and device of Low Voltage Differential Signal |
| US10705140B2 (en) | 2016-09-27 | 2020-07-07 | Boe Technology Group Co., Ltd. | Method and device for detecting low voltage differential signal |
| CN107038993A (en) * | 2017-05-23 | 2017-08-11 | 西安诺瓦电子科技有限公司 | parameter adjusting method and device, display system |
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Application publication date: 20100623 |