CN108197025A - A kind of gauge pressure test system and gauge pressure test method - Google Patents
A kind of gauge pressure test system and gauge pressure test method Download PDFInfo
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- CN108197025A CN108197025A CN201711473219.3A CN201711473219A CN108197025A CN 108197025 A CN108197025 A CN 108197025A CN 201711473219 A CN201711473219 A CN 201711473219A CN 108197025 A CN108197025 A CN 108197025A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/36—Preventing errors by testing or debugging software
- G06F11/3668—Software testing
- G06F11/3672—Test management
- G06F11/3688—Test management for test execution, e.g. scheduling of test suites
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30108—Industrial image inspection
- G06T2207/30121—CRT, LCD or plasma display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30168—Image quality inspection
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- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Controls And Circuits For Display Device (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention provides a kind of gauge pressure test system, for carrying out pressure test to the instrument with display screen, including test main frame and image collecting device, image collecting device is used to acquire the image of display screen in pressure test sequence and the image of acquisition is transmitted to test main frame, test main frame is used to run effective input data that gauge pressure test script sends test case to instrument, it preserves image and associated images is to the corresponding switching for showing picture, to identify the display defect of instrument.The present invention also provides a kind of gauge pressure test methods.Gauge pressure test system and gauge pressure test method provided by the invention, in pressure test sequence, it acquires and stores image and associated images to the switching for showing picture accordingly, the display defect of Quick positioning instrument table, quickly to repair the display problem of instrument, complaint of the client to instrument quality can not only be reduced in this way, and can reduce the manpower and materials that update instrument software needs expend.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of gauge pressure test system and gauge pressure test method.
Background technology
With the rapid development of automotive engineering, automobile instrument also to bigger, it is 3.5 inches clearer, 7 inches, even
The instrument development of 12.3 full-scale display screens, has the display that the instrument of display screen passes through software control instrument.
Per a automobile instrument in addition to completing functional test before software freezes, it is also necessary to do a large amount of pressure test
Software reliability is verified, to avoid instrument in actual use since frequent operation, switching make instrument MCU chip be in high load
State and caused by the abnormal problem of display, such as some of Software Architecture Design and hardware circuit design defects, alternatively, aobvious
Registration may all lead to instrument display screen nothing under MCU high load conditions according to there may be regular hour gaps in switching
There is blank screen (no display data) in method timely processing, (display data is imperfect, causes display picture whole or one for colored screen
Point display is abnormal) etc. the abnormal problem of display.
And these problems are that will not send out in common functional test (usual instrument MCU chip is in the state of low-load)
It is raw, that is to say, that there is no problem in itself for instrument function, only under the high load condition of frequent switching just can because of can not and
When handle, cause to show abnormal.
If just finding the above problem after instrument is delivered OEM vehicle factors, client can be not only brought to instrument quality
Complain, and update instrument software to need to expend a large amount of manpower and materials.
Therefore instrument provider is wished through pressure test, is found and is solved the above problems before instrument is dispatched from the factory.
In pressure test, it can generally recycle various LCD alarms, LED alarms and instrument that triggering instrument defines and show
Screen shows the switching of picture, and can messages, key information or other effectively inputs are sent to instrument by pressure test script,
So that instrument MCU chip is always worked in the state of high load.In this test mode, additional auxiliary is not carried out in instrument
The code segment of test, such as the image currently shown is exported, closer to the real use state of instrument.
But tester be difficult to for a long time, absorbed observe instrument, therefore be not easy to capture the display of moment appearance not just
The phenomenon that normal.
Invention content
For problems of the prior art, the problem to be solved in the present invention is to provide a kind of gauge pressure test system
System, during gauge pressure test script is run, acquisition preserves described image and is associated with described image to corresponding display
The switching of picture, the display defect of Quick positioning instrument table quickly to repair the display problem of instrument, can not only be reduced in this way
Complaint of the client to instrument quality, and the manpower and materials that update instrument software needs expend can be reduced.
The present invention provides a kind of gauge pressure test system, for carrying out pressure test, packet to the instrument with display screen
Test main frame and the image collecting device being connect with test main frame are included, image collecting device is used to acquire in pressure test sequence
The image of acquisition is simultaneously transmitted to test main frame by the image of display screen, and test main frame is used to run gauge pressure test script to instrument
Table sends effective input data of test case, controls the acquisition operations of image collecting device, preserves image and associated images arrive
The switching of corresponding display picture, to identify the display defect of instrument.
Further, show that the switching of picture includes showing in test case between switching and/or the test case of picture
Show the switching of picture.
Further, image with acquisition time, test case or shows that the switching of picture and combination thereof are named.
Further, image is associated with the mark of corresponding test case in a manner of data record, and data record includes
Image, test case mark, upper display picture mark and current display picture mark.
Further, blank screen of the display defect including display screen, Hua Ping, flicker or color are incorrect.
Further, test main frame is provided with integration testing environment, can run gauge pressure test script and carry out instrument
Test.
Further, gauge pressure test script includes control image acquisition device and stores the image of display screen
Order.
The present invention also provides a kind of gauge pressure test method, gauge pressure test system include test main frame and with survey
The image collecting device of host connection is tried, gauge pressure test method includes the following steps：
Gauge pressure test script is worked out, gauge pressure test script includes test case, acquisition and storage pressure test
The order of the image of display screen in the process；
Gauge pressure test script is run in integration testing environment in test main frame；
The figure that test main frame passes through display screen in pressure test Script controlling image acquisition device pressure test sequence
Picture simultaneously stores image, associated images to the switching of corresponding display picture；
Identify the switching there are the image of display defect and corresponding display picture.
Further, include manual identified or automatic identification including identification instrument display defect.
Further, automatic identification includes the following steps：
Establish neural network and deep learning model；
Model is trained the image of display screen stored in being tested using previous gauge pressure and more new model；
Using the image stored in the current gauge pressure test of newer model treatment, identify that there are display defects
Image.
Compared with prior art, gauge pressure provided by the invention test system and gauge pressure test method, have with
Lower advantageous effect：During gauge pressure test script is run, acquire and store image and associated images to showing accordingly
Show the switching of picture, the display defect of Quick positioning instrument table quickly to repair the display problem of instrument, can not only subtract in this way
Few complaint of the client to instrument quality, and the manpower and materials that update instrument software needs expend can be reduced.
Description of the drawings
Fig. 1 is the schematic diagram of the gauge pressure test system of one embodiment of the present of invention；
Fig. 2 is the structure diagram of gauge pressure test system shown in FIG. 1.
Specific embodiment
As shown in Figure 1, the gauge pressure test system of one embodiment of the present of invention, for the instrument with display screen
Pressure test is carried out, the instrument with display screen can be the combination instrument with display screen or full liquid crystal display instrument,
It is full liquid crystal display instrument that instrument is tested in the present embodiment.
Gauge pressure test system includes test main frame 2 and the image collecting device being connect with test main frame 2.Image is adopted
Acquisition means are positioned over the position for the display picture that can acquire full liquid crystal display instrument, and test main frame 2 passes through debugger, serial ports, CAN
Bus is connect with full liquid crystal display instrument.
Image collecting device is used to acquire the image of the display screen 1 of full liquid crystal display instrument in pressure test sequence and will acquisition
Image be transmitted to test main frame 2, image collecting device can be camera 3, be connected in test main frame 2 by USB interface.
IP Camera can also be used in other examples, connect by network with test main frame 2.The connection is used for transmission control
The instruction of 3 acquisition operations of camera processed, and it is used for transmission the image of the acquisition of camera 3.
Test main frame 2 is provided with integration testing environment, can run gauge pressure test script and carry out gauge pressure test.
Test main frame 2 is used to run the test case that gauge pressure test script sends pressure test to full liquid crystal display instrument
Effective input data, control the acquisition operations of camera 3, preserve image and associated images to showing cutting for picture accordingly
It changes, to identify the display defect of instrument.
Blank screen, Hua Ping, flicker or the color that display defect includes display screen are incorrect.
Such as some of Software Architecture Design and hardware circuit design defects, alternatively, display data may be deposited in switching
In regular hour gap, may all cause instrument display screen under MCU high load conditions can not timely processing, that is, show
The update of caching is there is no completion, so as to cause there is blank screen (removing display caching, be not updated also), flower screen (update section
Point display caching) etc. the abnormal problem of display.
Display defect further includes the color in the larger caused image and demand for flickering and showing of brightness of image difference
The problems such as inconsistent.
Effective input data of the test case of pressure test is passed through by test main frame 2 between full liquid crystal display instrument
Connection transmission, instrument only receives effective input data and shown accordingly, does not perform the code of additional subtest
Section, such as the image currently shown is exported, closer to the real use state of instrument.
The switching of display picture includes showing picture between the switching for showing picture in test case and/or test case
Switching.
For associated images to the switching of corresponding display picture, image here refers to the display screen of image acquisition device
The image of picture is currently shown on 1, the corresponding switching for showing picture refers to show from upper one display picture to current on display screen 1
Show the process of the switching of picture.
In high load situations, the abnormal place of display that the switching of picture is exactly susceptible to, associated images are shown
To the switching of corresponding display picture, when display problem occurs in the image for finding storage, generation display can be quickly positioned not
Normal operation scenario, so as to quickly repair the display defect of instrument.
System is tested using above-mentioned gauge pressure, gauge pressure test method includes the following steps：
Gauge pressure test script is worked out, gauge pressure test script includes test case, acquisition and storage pressure test
The order of the image of display screen in the process；
Gauge pressure test script is run in integration testing environment in test main frame；
Test main frame sends the effective defeated of the test case of pressure test by pressure test script to full liquid crystal display instrument
Enter data, control the operation of the acquisition image of image collecting device, storage image and associated images to corresponding display picture
Switching；
Identify the switching there are the image of display defect and corresponding display picture.
The uTAS3 integration testing environment used in the present embodiment can identify the test script of Excel forms, test foot
This includes initialization command init_vision：
| Step Conditions | Command | Parameters |
| all | init_vision |
Initialization command init_vision is used to distribute the global memory of image and initialization camera 3.
Gauge pressure test script further includes control image acquisition device and stores order-control of the image of display screen
Camera 3 processed acquires the order of the image of display screen 1：
| Step Conditions | Command | Parameters |
| Take_Picture | call_macro | take_picture_cyclic |
Macros take_picture_cyclic is called, controls the operation of the acquisition image of image collecting device.
Wherein, " take_picture " is acquisition image command, and " save_aquired_image " is storage image command,
" clear_image " be discharge image occupy memory order, " get_system_time ", " get_system_
Seconds " for records photographing image time, " delay " be delay command, that is, wait for image capture device perform when
Between, because camera shooting and preservation image are required for the time.
Switching of the different mode associated images to corresponding display picture may be used, can with image with acquisition time,
Test case shows that the switching of picture and combination thereof name, image are associated with corresponding survey in a manner of data record
The mark of example on probation, data record include image, test case mark, upper display picture mark and current display picture mark
Know.
In the present embodiment in pressure test sequence, for example, with " switching of acquisition time+display picture " name image, such as
Fruit finds that the image of storage occurs showing abnormal situation, can be fast by " switching of display picture " information in filename
The position that fast locating and displaying defect occurs, quickly to repair the abnormal problem of display.
Can also image be named with " acquisition time ", by the time comparison in being reported with pressure test, locating and displaying lacks
The position occurred is fallen into, quickly to repair the abnormal problem of display.
Specifically, test script includes issuing orders：
Wherein, WBC is an order for being used to establish test environment.
Image is named with acquisition time (being represented with the second), is performed before macros take_picture_cyclic is called.
Identify that instrument display defect includes manual identified or automatic identification.
Manual identified is by way of manually checking, identifies instrument display defect.
The time of the entitled acquisition of file of the image of storage manually checks each image of storage, when a certain of discovery
When instrument is shown as blank screen in image, the time for acquiring the image is obtained by the filename of the image, is combined by the time
Pressure test is reported, finds the corresponding test case of image and display screen switching, and these information are fed back to developer,
Developer is enabled to position the position for the code that display problem occurs rapidly, it is negative in height that modification code eliminates instrument display screen
Occur to show abnormal problem in the case of load.
It identifies that instrument display defect can also be used and carries out image-recognizing method using artificial intelligence, carry out automatic identification,
Include the following steps：
Establish neural network and deep learning model；
Model is trained the image of display screen stored in being tested using previous gauge pressure and more new model；
Using the image stored in the current gauge pressure test of newer model treatment, identify that there are display defects
Image.
Tester is obtained there are the handover information of the corresponding display picture of the image of display defect and these images, is made
The position for the code that display defect occurs can quickly be positioned by obtaining developer, and modification code eliminates instrument display screen in high load
In the case of occur to show abnormal problem.
As shown in Fig. 2, can also install Labview in test main frame, Labview is a general utility tool, for controlling
IO capture cards and serial communication.
Python script environments, version 2.7 or version 3.4, Neng Goutong can also be installed in test main frame
Calling script startup test integration tool is crossed, corresponding test script is run, carries out gauge pressure test.
Distance host is connect by network with test main frame, and tester can be connected to test main frame on distance host
On, carry out test operation.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel, the various changes made without departing from the spirit and scope of the present invention and modification, should all be included in the protection model of the present invention
In enclosing, therefore protection scope of the present invention should be subject to claim limited range.
Claims (10)
1. a kind of gauge pressure tests system, which is characterized in that the gauge pressure test system is used for display screen
Instrument carries out pressure test, the image collecting device being connect including test main frame and with test main frame, and image collecting device is used
In acquiring the image of display screen in pressure test sequence and the image of acquisition being transmitted to test main frame, test main frame is used to run
Gauge pressure test script sends effective input data of test case to instrument, controls the acquisition operations of image collecting device,
It preserves described image and is associated with switching of the described image to corresponding display picture, to identify the display defect of instrument.
2. gauge pressure as described in claim 1 tests system, which is characterized in that shows that the switching of picture includes test case
The switching of picture is shown between the switching of middle display picture and/or test case.
3. gauge pressure as described in claim 1 tests system, which is characterized in that image with acquisition time, test case or
Show the switching of picture and combination thereof name.
4. gauge pressure as described in claim 1 tests system, which is characterized in that image is associated in a manner of data record
The mark of corresponding test case, the data record include image, test case mark, upper display picture mark and work as
Preceding display picture mark.
5. gauge pressure as described in claim 1 tests system, which is characterized in that the display defect includes the black of display screen
Screen, Hua Ping, flicker or color are incorrect.
6. gauge pressure as described in claim 1 tests system, which is characterized in that test main frame is provided with integration testing ring
Border can run gauge pressure test script and carry out Meter Test.
7. gauge pressure as claimed in claim 6 tests system, which is characterized in that gauge pressure test script includes control figure
As harvester acquires and store the order of the image of display screen.
8. a kind of gauge pressure test method, which is characterized in that gauge pressure test system include test main frame and with test
The image collecting device of host connection, the gauge pressure test method include the following steps：
Gauge pressure test script is worked out, the gauge pressure test script includes test case, acquisition and storage pressure test
The order of the image of display screen in the process；
The gauge pressure test script is run in integration testing environment in test main frame；
Test main frame by the image of display screen in pressure test Script controlling image acquisition device pressure test sequence simultaneously
Store described image, association described image to the switching of corresponding display picture；
Identify the switching there are the image of display defect and corresponding display picture.
9. gauge pressure test method as claimed in claim 8, which is characterized in that identification instrument display defect includes artificial knowledge
Other or automatic identification.
10. gauge pressure test method as claimed in claim 8, which is characterized in that the automatic identification includes the following steps：
Establish neural network and deep learning model；
The image of display screen stored in being tested using previous gauge pressure is trained the model and updates the mould
Type；
Using the image stored in the current gauge pressure test of newer model treatment, the image there are display defect is identified.
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| CN201711473219.3A CN108197025B (en) | 2017-12-29 | 2017-12-29 | Instrument pressure testing system and instrument pressure testing method |
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Cited By (3)
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| CN110308346A (en) * | 2019-06-24 | 2019-10-08 | 中国航空无线电电子研究所 | Cockpit display system automatic test approach and system based on image recognition |
| CN110686719A (en) * | 2019-09-06 | 2020-01-14 | 惠州市德赛西威汽车电子股份有限公司 | Labview-based automobile instrument road test system and method thereof |
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| CN108197025B (en) | 2021-04-09 |
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