CN105704481B - The method and system of video interface Air conduct measurement - Google Patents
The method and system of video interface Air conduct measurement Download PDFInfo
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- CN105704481B CN105704481B CN201410707680.0A CN201410707680A CN105704481B CN 105704481 B CN105704481 B CN 105704481B CN 201410707680 A CN201410707680 A CN 201410707680A CN 105704481 B CN105704481 B CN 105704481B
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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 invention discloses a kind of method and system of video interface Air conduct measurement, the method for the video interface Air conduct measurement comprises the following steps：Signal generator sends the first image information according to the video interface channel sense command that commissioning device is sent to the current video interface of image display, so that described image display device is as current display image；Commissioning device sends detection instruction to image display, wherein, the instruction that the detection instruction starts comprising the second image information corresponding with the first image information and detection；Image display is according to the current display image of detection instruction acquisition received；Acquired image and second image information are carried out image detection by image display, obtain testing result.The present invention can improve the video interface Air conduct measurement efficiency of image display, realize the automation of detection.
Description
Technical field
The present invention relates to Air conduct measurement technical field, more particularly to a kind of method and system of video interface Air conduct measurement.
Background technology
Image display such as television set, projecting apparatus etc., the video interface that it has is more and more, as television set includes regarding
Frequency graphic array (Video Graphics Array, VGA) interface, high-definition multimedia (High Definition
Multimedia Interface, HDMI) interface etc..Image display is in production, it is necessary to which each video interface is carried out
Detection, to judge whether the hardware of each video port is normal.The detection of usual video interface passage is typically manually operated by worker
To switch each information source, estimate whether the signal through the input of each video interface passage can normally show.This detection method effect
Rate is relatively low, and easily missing inspection occur causes product unqualified.
The content of the invention
The technical problem low it is a primary object of the present invention to solve image display video interface Air conduct measurement efficiency.
To achieve the above object, the present invention provides a kind of method of video interface Air conduct measurement, the video interface passage
The method of detection comprises the following steps：
S1, signal generator working as to image display according to the video interface channel sense command that commissioning device is sent
Preceding video interface sends the first image information, so that described image display device is as current display image；
S2, commissioning device send detection instruction to image display, wherein, the detection instruction includes and the first image
The instruction that second image information corresponding to information and detection start；
S3, image display is according to the current display image of detection instruction acquisition received；
Acquired image and second image information are carried out image detection, detected by S4, image display
As a result.
Preferably, the step of S4 includes：
S41, the pixel coordinate information in second image information is obtained, searched and the picture in acquired image
Pixel corresponding to plain coordinate information, and search the color information of the pixel；
S42, the picture-element color information in second image information is obtained, calculate the pixel in second image information
The error of color information and the color information of the pixel found, testing result is obtained according to the error.
Preferably, include after the step of S4：Testing result is fed back to commissioning device by S5, image display.
Preferably, second image information is the parts of images information of described first image, and the second image information is
Random image information.
Preferably, the method for the video interface Air conduct measurement also includes：
S6, commissioning device send video interface passage switching command, image to image display, signal generator respectively
Display device, signal generator switch to corresponding video interface according to the video interface passage switching command respectively, return
Step S1 is sent image information to image display by corresponding video interface from signal generator and circulated, until detection
All video interfaces of complete image display.
In addition, to achieve the above object, the present invention also provides a kind of system of video interface Air conduct measurement, the system bag
Include image display, commissioning device and signal generator, wherein, the commissioning device respectively with described image display device and
Signal generator is connected by serial ports, and described image display device is connected with signal generator by video line, and the debugging is set
Standby to include the first sending module, the signal generator includes the second sending module, and described image display device includes collection mould
Block, detection module, wherein：
First sending module, for sending video interface channel sense command to signal generator；
Second sending module, for sending the first image information to the current video interface of image display, with
For described image display device as current display image；
First sending module, be additionally operable to image display send detection instruction, wherein, it is described detection instruction with
The instruction that second image information corresponding to first image information and detection start；
The acquisition module, for according to the current display image of detection instruction acquisition received；
The detection module, for acquired image and second image information to be carried out into image detection, examined
Survey result.
Preferably, the detection module includes：
Searching unit, for obtaining the pixel coordinate information in second image information, looked into acquired image
Pixel corresponding with the pixel coordinate information is looked for, and searches the color information of the pixel；
Computing unit, for obtaining the picture-element color information in second image information, calculate the second image letter
The error of the color information of picture-element color information and the pixel found in breath, detection knot is obtained according to the error
Fruit.
Preferably, described image display device also includes feedback module, for testing result to be fed back into commissioning device.
Preferably, second image information is the parts of images information of described first image, and the second image information is
Random image information.
A kind of method and system of video interface Air conduct measurement of the present invention, install image display on commissioning device
Video interface Air conduct measurement software program, video interface channel sense command is sent to signal generator by commissioning device, believed
Number generator provides signal source to image display, and by commissioning device to sending detection instruction to image display,
The image that image display is currently shown according to detection instruction acquisition, then sends according to acquired image and commissioning device
Image carry out image detection, with the video interface passage of this detection image display device, the present invention can improve image and show
The video interface Air conduct measurement efficiency of equipment, the automation of detection is realized, and the probability that missing inspection occurs reduces.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the method first embodiment of video interface Air conduct measurement of the present invention；
Fig. 2 is that acquired image and second image information are carried out into image detection in Fig. 1, obtains testing result
Refine schematic flow sheet；
Fig. 3 is the schematic flow sheet of the method second embodiment of video interface Air conduct measurement of the present invention；
Fig. 4 is the schematic flow sheet of the method 3rd embodiment of video interface Air conduct measurement of the present invention；
Fig. 5 is the high-level schematic functional block diagram of the system first embodiment of video interface Air conduct measurement of the present invention；
Fig. 6 is the refinement high-level schematic functional block diagram of detection module in Fig. 5；
Fig. 7 is the high-level schematic functional block diagram of the system second embodiment of video interface Air conduct measurement of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of method of video interface Air conduct measurement, and reference picture 1, in the first embodiment, the video connect
The method of mouth Air conduct measurement includes：
Step S1, signal generator is according to the video interface channel sense command that commissioning device is sent to image display
Current video interface send the first image information, so that described image display device is as current display image；
In the present embodiment, image display has a variety of, can be television set, projecting apparatus etc..The behaviour of image display
It can be android system or other intelligent operating systems to make system.There is signal generator various video to connect
Mouthful, such as audio-video interface, Video Graphics Array interface or HDMI.Signal generator passes through video line
Connect the video interface of image display.
Signal generator is stored with the first image of a variety of particular statics, and the first static image refers to that each frame is drawn
Face all identical images.Signal generator produces the first image information of particular static, and it is occurred as signal source by signal
The video interface corresponding with image display current video interface on device, through video line, then again through image display
Current video interface be transferred to image display.
Current video interface such as image display is Video Graphics Array interface, then corresponds to the video of signal generator
Interface is also Video Graphics Array interface.
The first image information that image display reception signal generator is sent, and be shown on screen as test
With.
Step S2, commissioning device send detection instruction to image display, wherein, the detection instruction includes and first
The instruction that second image information corresponding to image information and detection start；
In the present embodiment, commissioning device can be the equipment such as computer, and it is connected between image display by serial ports
Connect.
Wherein, the inspection software of the video interface passage of image display is installed in commissioning device, it is soft by detecting
Part, detection instruction can be sent to image display.
Wherein, the detection instruction in comprising the second image information and detection start instruction, second image information with it is upper
The first image information stated is corresponding, and e.g., the first image is complete piece image, and the second image only includes the complete image
A part, coordinate information and corresponding color information such as only comprising the partial pixel point in complete image, and the second image
Information is random.
When signal generator is sent according to the video interface channel sense command that commissioning device is sent to image display
During the first image information, commissioning device sends the second image corresponding with the first image information by serial ports to image display
Information.
Step S3, image display is according to the current display image of detection instruction acquisition received；
In the present embodiment, image display equally has various video interface, such as audio-video interface, Video Graphics Array
Interface or HDMI etc..
In addition, connected between the commissioning device and signal generator of the present embodiment by serial ports, commissioning device not only can be with
Video interface channel sense command is sent to signal generator by serial ports, can also be by serial ports to image display and letter
Number generator sends the instruction of Switch Video interface, and can automatically switch video interface.
In the present embodiment, image display instructed according to detection in the figure that currently shows of instruction acquisition that starts of detection
Picture, IMAQ are exactly to obtain picture signal from the video interface, that is, capture the two field picture currently shown, be converted into one
Fixed picture, is stored in the file system built in image display.The gatherer process of image display is grasped with Android
Exemplified by making system, this system provides screenshotss program command：screencap.The figure that the order can currently be shown with capture screen
Picture, save as a pictures.After image display receives detection instruction, " screencap/tmp/test.png " life is performed
Order, the image currently shown is saved as the pictures under tmp catalogues：test.png.
Acquired image and second image information are carried out image detection, obtained by step S4, image display
Testing result.
In the present embodiment, acquired image is compared and calculates both by image display with the second image information
Error carry out image detection.Because the second image information is random information, include the coordinate information and pixel of pixel
Color information of point etc..The present embodiment is mainly by calculating acquired image pixel corresponding with both the second image informations
Color information between error come detection image display device video interface it is whether qualified.
Compared with prior art, the video interface passage that the present embodiment passes through the installation image display on commissioning device
Inspection software program, video interface channel sense command is sent to signal generator by commissioning device, signal generator provides
Signal source is instructed to image display, image display to image display, and by commissioning device to detection is sent
The image currently shown according to detection instruction acquisition, the image then sent according to acquired image and commissioning device carry out figure
As detection, with the video interface passage of this detection image display device, the present embodiment need not manually carry out Switch Video interface and lead to
Road, it is possible to increase the video interface Air conduct measurement efficiency of image display, realize the automation of detection, and the several of missing inspection occur
Rate reduces, and increases customer satisfaction degree.
In a preferred embodiment, as shown in Fig. 2 on the basis of above-mentioned Fig. 1 embodiment, above-mentioned steps S4 bags
Include：
S41, the pixel coordinate information in second image information is obtained, searched and the picture in acquired image
Pixel corresponding to plain coordinate information, and search the color information of the pixel；
S42, the picture-element color information in second image information is obtained, calculate the pixel in second image information
The error of color information and the color information of the pixel found, testing result, and the mistake are obtained according to the error
Difference in allowed limits when, testing result is qualified.
In the present embodiment, pixel coordinate information, the color of respective pixel in image display the second image information of acquisition
Multimedia message, the pixel of above-mentioned coordinate information is searched in the image collected, then, calculate the second image information with being gathered
Image in one-to-one pixel color error, and whether in allowed limits judge calculated error, if so,
Then detection passes through, and otherwise, detection is by the way that exception occurs in the hardware of the video port of the image display, is underproof
Product.
As shown in figure 3, on the basis of above-mentioned Fig. 1 embodiment, second embodiment is proposed, is wrapped after the step S4
Include：Testing result is fed back to commissioning device by step S5, image display.
In the present embodiment, the testing result is fed back to commissioning device by image display, and is shown on commissioning device
Show.Testing staff can judge whether the video interface passage of image display is normal according to testing result.
The present embodiment does not need whether testing staff's range estimation can normally be shown by the signal of each video interface, significantly
Improve the efficiency of video interface Air conduct measurement.
As shown in figure 4, on the basis of above-mentioned Fig. 2 embodiment, 3rd embodiment, the video interface passage inspection are proposed
The method of survey also includes：
Step S6, commissioning device send video interface passage switching command to image display, signal generator respectively,
Image display, signal generator switch to corresponding video interface according to the video interface passage switching command respectively,
Return to step S1 is sent image information to image display by corresponding video interface from signal generator and circulated, until
All video interfaces of image display are detected.
In the present embodiment, after passage where having detected the current video interface of image display, by commissioning device
Switching command is sent, other video interface passages is switched to and is detected, synchronous signal generator also switches to corresponding video
Interface, until the Air conduct measurement where all video interfaces of image display is complete.
In the present embodiment, video interface switching command is sent from commissioning device to image display and signal generator,
Image display and signal generator switch to corresponding video interface, in this way, carry out video interface passage
Automatically switch, it is possible to increase the efficiency of video interface Air conduct measurement.
The present invention also provides a kind of system of video interface Air conduct measurement, as shown in figure 5, in one embodiment, system bag
Image display, commissioning device and signal generator are included, wherein, commissioning device occurs with image display and signal respectively
Device is connected by serial ports, and image display is connected with signal generator by video line, and commissioning device includes first and sends mould
Block 101, signal generator include the second sending module 102, and described image display device includes acquisition module 103, detection module
104, wherein：
First sending module 101, for sending video interface channel sense command to signal generator；
Second sending module 102, for sending video interface in the first sending module 101 for receiving the commissioning device
After channel sense command, the first image information is sent to the current video interface of image display, so that described image is shown
Equipment is as current display image；
In the present embodiment, image display has a variety of, can be television set, projecting apparatus etc..The behaviour of image display
It can be android system or other intelligent operating systems to make system.There is signal generator various video to connect
Mouthful, such as audio-video interface, Video Graphics Array interface or HDMI.Signal generator passes through video line
Connect the video interface of image display.
Signal generator is stored with the first image of a variety of particular statics, and the first static image refers to that each frame is drawn
Face all identical images.Signal generator produces the first image information of particular static, and it is as signal source by showing with image
Show the corresponding video interface of equipment current video interface, through video line, then the current video through image display connects again
Image display is defeated by oral instructions.
Current video interface such as image display is Video Graphics Array interface, then corresponds to the video of signal generator
Interface is also Video Graphics Array interface.
The first image information that image display reception signal generator is sent, and be shown on screen as test
With.
First sending module 101, it is additionally operable to send out to the current video interface of image display in the second sending module 102
After sending the first image information, detection instruction is sent to image display, wherein, the detection instruction includes to be believed with the first image
The instruction that second image information corresponding to breath and detection start；
In the present embodiment, commissioning device can be the equipment such as computer, and it is connected between image display by serial ports
Connect.
Wherein, the inspection software of the video interface passage of image display is installed in commissioning device, it is soft by detecting
Part, detection instruction can be sent to image display.
Wherein, the detection instruction in comprising the second image information and detection start instruction, second image information with it is upper
The first image information stated is corresponding, and e.g., the first image is complete piece image, and the second image only includes the complete image
A part, coordinate information and corresponding color information such as only comprising the partial pixel point in complete image, and the second image
Information is random.
When signal generator is sent according to the video interface channel sense command that commissioning device is sent to image display
During the first image information, commissioning device sends the second image corresponding with the first image information by serial ports to image display
Information.
Acquisition module 103, for according to the current display image of detection instruction acquisition received；
In the present embodiment, image display equally has various video interface, such as audio-video interface, Video Graphics Array
Interface or HDMI etc..
In addition, connected between the commissioning device and signal generator of the present embodiment by serial ports, commissioning device not only can be with
Video interface channel sense command is sent to signal generator by serial ports, can also be by serial ports to image display and letter
Number generator sends the instruction of Switch Video interface, and can automatically switch video interface.
In the present embodiment, image display instructed according to detection in the figure that currently shows of instruction acquisition that starts of detection
Picture, IMAQ are exactly to obtain picture signal from video interface, that is, capture the two field picture currently shown, be converted into a fixation
Picture, it is stored in the file system built in image display.The gatherer process of image display is operated with Android
Exemplified by system, this system provides screenshotss program command：screencap.The image that the order can currently be shown with capture screen, protect
Save as a pictures.After image display receives detection instruction, " screencap/tmp/test.png " order is performed, will
The image currently shown saves as the pictures under tmp catalogues：test.png.
Detection module 104, for acquired image and second image information to be carried out into image detection, detected
As a result.
In the present embodiment, acquired image is compared and calculates both by image display with the second image information
Error carry out image detection.Because the second image information is random information, include the coordinate information and pixel of pixel
Color information of point etc..The present embodiment is mainly by calculating acquired image pixel corresponding with both the second image informations
Color information between error come detection image display device video interface it is whether qualified.
In a preferred embodiment, as shown in fig. 6, on the basis of above-mentioned Fig. 5 embodiment, above-mentioned detection module
104 include：
Searching unit 1041, for obtaining the pixel coordinate information in second image information, in acquired image
It is middle to search pixel corresponding with the pixel coordinate information, and search the color information of the pixel；
Computing unit 1042, for obtaining the picture-element color information in second image information, calculate second figure
As the picture-element color information in information and the error of the color information of the pixel found, detected according to the error
As a result.
In the present embodiment, pixel coordinate information, the color of respective pixel in image display the second image information of acquisition
Multimedia message, the pixel of above-mentioned coordinate information is searched in the image collected, then, calculate the second image information with being gathered
Image in one-to-one pixel color error, and whether in allowed limits judge calculated error, if so,
Then detection passes through, and otherwise, detection is by the way that exception occurs in the hardware of the video port of the image display, is underproof
Product.
As shown in fig. 7, on the basis of above-mentioned Fig. 5 embodiment, second embodiment is proposed, described image display device is also
Including feedback module 105, for testing result to be fed back into commissioning device.
In the present embodiment, testing result is fed back to commissioning device by image display, and is shown on commissioning device.Inspection
Survey personnel can judge whether the video interface passage of image display is normal according to testing result information.
The present embodiment does not need whether testing staff's range estimation can normally be shown by the signal of each video interface, significantly
Improve the efficiency of video interface Air conduct measurement.
In a preferred embodiment, after the passage where having detected the current video interface of image display, by
Commissioning device sends video interface passage switching command and cut respectively to image display and signal generator, image display
Other video interface passages are shifted to be detected, synchronous signal generator also switches to corresponding video interface passage, until will
Air conduct measurement where all video interfaces of image display is complete.
In the present embodiment, video interface switching command is sent from commissioning device to image display and signal generator,
Image display and signal generator switch to corresponding video interface, in this way, carry out video interface passage
Automatically switch, it is possible to increase the efficiency of video interface Air conduct measurement.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (7)
- A kind of 1. method of video interface Air conduct measurement, it is characterised in that the method for the video interface Air conduct measurement include with Lower step：S1, the video interface channel sense command that signal generator is sent according to commissioning device work as forward sight to image display Frequency interface sends the first image information, so that described image display device is as current display image, wherein, the first image information For the first image information of particular static caused by signal generator, the first static image refers to each frame picture all phases Same image；S2, commissioning device send detection instruction to image display, wherein, the detection instruction includes and the first image information The instruction that corresponding second image information and detection start, second image information are believed for the parts of images of described first image Breath, and the second image information is random image information；S3, image display is according to the current display image of detection instruction acquisition received；Acquired image and second image information are carried out image detection, obtain testing result by S4, image display.
- 2. the method for video interface Air conduct measurement as claimed in claim 1, it is characterised in that include the step of the S4：S41, the pixel coordinate information in second image information is obtained, search in acquired image and sat with the pixel Pixel corresponding to information is marked, and searches the color information of the pixel；S42, the picture-element color information in second image information is obtained, calculate the pixel color in second image information The error of information and the color information of the pixel found, testing result is obtained according to the error.
- 3. the method for video interface Air conduct measurement as claimed in claim 1, it is characterised in that wrapped after the step of the S4 Include：Testing result is fed back to commissioning device by S5, image display.
- 4. the method for the video interface Air conduct measurement as described in any one of claims 1 to 3, it is characterised in that the video connects The method of mouth Air conduct measurement also includes：S6, commissioning device send video interface passage switching command to image display, signal generator respectively, and image is shown Equipment, signal generator switch to corresponding video interface, return to step according to the video interface passage switching command respectively S1 is sent image information to image display by corresponding video interface from signal generator and circulated, until having detected figure As all video interfaces of display device.
- 5. a kind of system of video interface Air conduct measurement, it is characterised in that the system includes image display, commissioning device And signal generator, wherein, the commissioning device is connected with described image display device and signal generator by serial ports respectively, Described image display device is connected with signal generator by video line, and the commissioning device includes the first sending module, described Signal generator includes the second sending module, and described image display device includes acquisition module, detection module, wherein：First sending module, for sending video interface channel sense command to signal generator；Second sending module, for sending the first image information to the current video interface of image display, for institute Image display is stated as current display image, wherein, the first image information is particular static caused by signal generator First image information, the first static image refer to each frame picture all identical images；First sending module, be additionally operable to image display send detection instruction, wherein, it is described detection instruction include with The instruction that second image information corresponding to first image information and detection start, wherein, second image information is described the The parts of images information of one image, and the second image information is random image information；The acquisition module, for according to the current display image of detection instruction acquisition received；The detection module, for acquired image and second image information to be carried out into image detection, obtain detection knot Fruit.
- 6. the system of video interface Air conduct measurement as claimed in claim 5, it is characterised in that the detection module includes：Searching unit, for obtaining the pixel coordinate information in second image information, in acquired image search with Pixel corresponding to the pixel coordinate information, and search the color information of the pixel；Computing unit, for obtaining the picture-element color information in second image information, calculate in second image information Picture-element color information and the color information of pixel found error, testing result is obtained according to the error.
- 7. the system of video interface Air conduct measurement as claimed in claim 5, it is characterised in that described image display device also wraps Feedback module is included, for testing result to be fed back into commissioning device.
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| CN201410707680.0A CN105704481B (en) | 2014-11-27 | 2014-11-27 | The method and system of video interface Air conduct measurement |
| PCT/CN2015/090230 WO2016082611A1 (en) | 2014-11-27 | 2015-09-22 | Method and system for detecting video interface channel |
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| CN201410707680.0A CN105704481B (en) | 2014-11-27 | 2014-11-27 | The method and system of video interface Air conduct measurement |
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| CN103873857B (en) * | 2014-03-13 | 2015-07-15 | 深圳市九洲电器有限公司 | Test equipment and test method for audio and video output interface |
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- 2014-11-27 CN CN201410707680.0A patent/CN105704481B/en active Active
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| CN103686030A (en) * | 2013-12-23 | 2014-03-26 | 广东威创视讯科技股份有限公司 | Method and device for detecting video signal interface applied to picture splicing display unit |
| CN104168477A (en) * | 2014-09-02 | 2014-11-26 | 深圳市兆驰股份有限公司 | Automatic TV decoding deck test system and method |
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| WO2016082611A1 (en) | 2016-06-02 |
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