CN104881236B - A kind of scribing line detection system and detection method based on USB interface capacitance touch screen - Google Patents
A kind of scribing line detection system and detection method based on USB interface capacitance touch screen Download PDFInfo
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- CN104881236B CN104881236B CN201510324274.0A CN201510324274A CN104881236B CN 104881236 B CN104881236 B CN 104881236B CN 201510324274 A CN201510324274 A CN 201510324274A CN 104881236 B CN104881236 B CN 104881236B
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Abstract
The invention discloses a kind of scribing line detection system and its detection method based on USB interface capacitance touching control screen, the scribing line detection system includes mutually connected touch screen and master control device, master control device includes touch screen control module, and the touch drive module of the master control device is called to be communicated with the touch screen by USB.Scribing line detection system and detection method used according to the present invention based on USB interface capacitance touching control screen, system cost can be reduced significantly and the compatibility of system is made to become strong, and it can satisfy different testing requirements, making detection system only pass through parameter configuration in change detection type of touch screens by the editable function of USB interface crawl touch point data and testing process can quickly come into operation.
Description
Technical field
The invention belongs to capacitance touch screen detection field, more particularly, to a kind of based on USB interface capacitance touch screen
Detection system of crossing and detection method.
Background technique
Make with using mobile phone and tablet computer as the tangible electronic equipment of representative is more and more extensive in daily life
With the market demand of capacitive touch screen becomes increasing.Different from the day of traditional common liquid crystals screen detection system and means
Becoming, it is mature to stablize, and capacitive touch screen detection system and detection method are still on the road felt one's way into.Numerous touch screen collection
Make the exploitation of touch screen detection system difficult big again at the interface that chip manufacturer provides respective standard, system cost is high, the time
Period is long, poor compatibility.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of USB interface-based capacitive touch
The detection system and detection method for touching screen, its object is to be analyzed and processed by software to original coordinates data are touched, no
The technical issues of needing data interface unit switching processing unit, thus solving the detection matching of different type touch chip.
To achieve the above object, according to one aspect of the present invention, it provides a kind of based on USB interface capacitance touching control screen
It crosses detection system, which is characterized in that the scribing line detection system includes the touch screen being in communication with each other and to the scribing line detection system
The master control device of system control, the master control device includes touch screen control module, and the touch of the master control device is called to drive
Module is communicated with the touch screen by USB.
Further, the master control device uses Windows system, further includes that the figure communicated with the touch screen produces
Generating apparatus.
Further, the touch software function of the Windows system of the master control device is in close state.
The invention also discloses a kind of scribing line detection methods based on USB interface capacitance touching control screen, which is characterized in that this stroke
Line detecting method includes the following steps:
(I) the touch screen control module in master control device carries out test parameter configuration to touch screen to be tested and generates to be measured
Try pictures；
(II) the touch screen control module closes the touch software function of the master control device system, and intercepts described total
The initial data for controlling the touch drive module of device is sent to the touch screen control module；
(III) the touch screen control module is received by USB drive module and comes from the master control device Windows system
The touch screen to be tested original coordinates point data, and it is parsed and is encapsulated；
(IV) after completing the step (III), the graph generating device lights the touch screen to be tested and beginning
Testing process.
Further, display interface and the to be tested touching of the touch screen control module control in the master control device
Touch screen display touch track and test result.
Further, the touch screen control module described in the step (IV) is according to the institute generated in the step (I)
It states test parameter configuration and determines to draw touch track or enter detection and determine.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) due to directly having used Windows system from the initial data of USB interface crawl touch screen, so that at data
Timeliness, stability and the efficiency of reason are more preferable than the system transferred by interface unit device；The composition of system also becomes more
Simply, touch screen and detection system can directly be connected using USB connecting line, it is no longer necessary to interface unit,
Reducing system cost again makes the compatibility of system become strong, can accomplish plug and play to most of chip that touches；
(2) testing process environment editor configuration feature is powerful, supports retest, continues test and three kinds of EOT end of test surveys
Try flow scheme.It supports line detection pattern, falls a variety of NG judgment models such as detection pattern.User can for test item and
The characteristic of touch screen is arbitrarily arranged in pairs or groups use, so that the testing requirement of the compatible different touch screens of testing process；
(3) by the editable function that USB interface grabs touch point data and testing process detection system is being switched
It is truly realized compatibility when detecting type of touch screens, only can quickly be come into operation by parameter configuration.
Detailed description of the invention
Fig. 1 is that the general frame for the scribing line detection system based on USB interface capacitance touch screen realized according to the present invention shows
It is intended to；
Fig. 2 is that the testing process for the scribing line detection system based on USB interface capacitance touch screen realized according to the present invention shows
It is intended to.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1-TP control module 2- touch screen 3-PG device 4-Windows system
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
As shown in Figure 1, being a kind of USB interface-based detection system that the present embodiment is related to, it includes touch screen control
Module 1 (Touch Panel abbreviation TP, hereinafter referred to as TP control module 1), touch screen 2 (hereinafter referred to as TP2), figure generate dress
3 (Pattern Generator abbreviation PG, hereinafter referred to as PG device 3) are set, Windows system 4, above-mentioned TP control module 1 passes through
It calls the touch driving of Windows system 4 and TP2 to carry out usb communication and obtains touch coordinate point data, PG device 3 is responsible for lighting
Touch screen 2.
STEP1:TP control module 1 is completed to the parameter configuration of target TP2 and the editor of picture to be measured, and parameter setting is main
Including touch screen resolution setting and LCD display resolution setting, the editor for treating mapping piece mainly includes editing picture
Type (such as " ten " herringbone pattern, " rice " herringbone pattern), color, line width, criterion, multiple pictures put in order.
The pictures to be measured that given resolution is generated according to the content of editor and background are prompted picture by TP control module 1,
Wherein picture to be measured such as " ten " herringbone pattern, background prompt picture is after the completion of a secondary picture detection, and meeting is according to testing result
Background prompt picture is recalled, for prompting operator, such as is successfully tested the background prompt pattern that can recall " PASS " picture.
The USB drive module and Microsoft Windows (Microsoft's Window) system of STEP2:TP control module 1
The touch drive module of (Windows7 and the above version) is communicated.TP control module 1 drives Windows system touch
Software is touched to included upper layer send the functions of data and close, and intercept the initial data of Windows system touch driving to TP
Control module 1.
TP2 is connected to the Windows system that is equipped with (Windows7 and later version) master control device using USB connecting line
USB interface.After connection is normal, system can load TP function, and generate " style of brushwork " icon in system lower right corner taskbar
In.TP control module 1 can complete data exchange by system drive with TP2 at this time, only use in this step
The USB of system touches driving, will close the touch software function of Windows system, because in the detection process, Windows
The usb TP2 accessed can be identified as tangible input equipment and obtain its original coordinates point by system, but this coordinate points can be
The cursor that system is automatically converted on master control device main display, leads to not using these data in this way, such as it is envisioned that
In the tangible region of notebook, the usb touch screen accessed is identified as cursor by Windows system, when finger is drawn in touch screen
It is out-of-date, the cursor on your main screen can be only moved, but this is not to need in detection process, is really needed, finger exists
When moving on touch screen, cursor can be fallen on current touch screen, and obtain the coordinate of touch screen, so needing to forbid
The touch software function of Windows system.
The USB drive module of STEP3:TP control module 1 receives the original coordinates of the TP screen 2 from Windows system
It will be parsed and encapsulated after point data and produce new data structure, pass to TP control module 1.
STEP4: testing process is opened after PG device 3 lights TP2:
TP control module 1 carries out TP scribing line detection according to the parameter of preset value, has addition plurality of optional to each secondary figure
Judgement setting options are selected, the TP2 for being judged as failure can also provide the reason of judgement fails.TP control module 1 can basis
Preset configuration carries out subsequent operation, including retest current image to the touch screen for determining failure, ignores current image jump
To next test picture and terminate to test, 1 software of TP control module in software interface and can touch screen display touch simultaneously
Geometric locus and judgement are as a result, facilitate operator to check and analyze.
After TP controls software unlatching TP scribing line testing process, it will be tested according to detecting step shown in Fig. 2:
S101 starts to test, and initialization system simultaneously loads preset data and configuration file.
S102 sends preset first picture to be measured to touch screen.
S103 starts to grab parsing touch coordinate data in real time, according to configuration after TP control software acquisition touch coordinate data
Information, which determines using S104Debug mode only to draw touch track, still to be entered detection using S105 touch screen Graphics Mode and sentences
Constant current journey.S106 software drawing function can be automatically turned on into testing process, coordinate points are mapped to software previewing track region.
S107 selects Line (line) mode, touch coordinate point can be linked to be solid line automatically.Sentencing a little will no longer be carried out
Disconnected, process is jumped into S108, draws the track after line on the touchscreen.It completes to judge process into S111NG after drawing.If
Line mode is not selected, then continues testing process.
S109 clicks through row distance to effective touch coordinate and determines, when distance between two points are more than preset numerical value, determines
NG jumps to S112 and carries out follow-up process.If falling to determine OK or continue testing process if falling to determine kinetic energy without selection.
Track that S110 real-time rendering finger streaks simultaneously is shown on touch screen.
S111 judges whether the scribing line of finger exceeds or be not completely covered preset pattern range.If S111 determines result
Then enter S112 for NG, then proceedes to be to enter S116 to terminate process or enter how S113 decision continues according to configuration determination
Test will jump to S107 when being set as repeating current image test, if being set as not, repeatedly current image test is jumped to
S115 cuts figure, starts the testing process of next picture subsequently into S107.Continue test stream if S111 determines result for OK
Journey.
S114 judges whether current image is last picture.If it is determined that result is that very, then entering S116 terminates entirely
Testing process.If it is determined that result is if false, continue testing process.
S115 cuts figure to next picture.Subsequently into S107, start retest process from there, until entering S116
Terminate entire testing process.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (4)
1. a kind of scribing line detection system based on USB interface capacitance touching control screen, which is characterized in that the scribing line detection system includes touching
Control screen (2) and the master control device controlled the scribing line detection system, the master control device includes touch screen control module (1),
The touch screen control module (1) calls the touch drive module of the master control device and the touch screen (2) to carry out by USB
Communication, the master control device use Windows system, and the master control device further includes the figure communicated with the touch screen (2)
Generation device (3)；The touch screen control module (1) closes the touch software function of the master control device system, and intercepts institute
The initial data for stating master control device touch drive module is sent to the touch screen control module (1)；The touch screen controls mould
Block (1) receives the original coordinates of the touch screen (2) from the master control device Windows system by USB drive module
Point data, and it is parsed and is encapsulated.
2. a kind of scribing line detection method based on USB interface capacitance touching control screen, which is characterized in that the scribing line detection method includes such as
Lower step:
(I) the touch screen control module (1) in master control device to touch screen to be tested (2) carry out test parameter configuration and generate to
Test pictures；
(II) the touch screen control module (1) closes the touch software function of the master control device system, and intercepts described total
The initial data for controlling the touch drive module of device is sent to the touch screen control module (1)；
(III) the touch screen control module (1) receives the Windows used from the master control device by USB drive module
The original coordinates point data of the touch screen (2) to be tested in system, and it is parsed and is encapsulated；
(IV) after completing the step (III), the graph generating device (3) that the master control device includes is lighted described to be tested
Touch screen (2) and start testing process.
3. the scribing line detection method as claimed in claim 2 based on USB interface capacitance touching control screen, which is characterized in that the touching
Control screen control module (1) control the display interface of the master control device and the touchs screen display touch track to be tested with
Test result.
4. the scribing line detection method as claimed in claim 2 based on USB interface capacitance touching control screen, which is characterized in that described
Touch screen control module (I) described in step (IV) is drawn according to the test parameter configuration determination generated in the step (I)
Touch track processed enters detection judgement.
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| CN201510324274.0A CN104881236B (en) | 2015-06-12 | 2015-06-12 | A kind of scribing line detection system and detection method based on USB interface capacitance touch screen |
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| CN104881236B true CN104881236B (en) | 2018-12-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106093647B (en) * | 2016-06-24 | 2019-02-01 | 武汉精测电子集团股份有限公司 | The scribing line degradation detecting method and detection system of touch screen |
| CN111415605A (en) * | 2020-03-20 | 2020-07-14 | 深圳同兴达科技股份有限公司 | On-line test system and test method of liquid crystal display module |
| CN111459335A (en) * | 2020-04-07 | 2020-07-28 | 深圳回收宝科技有限公司 | Touch screen detection method and device for electronic product |
| CN112306292B (en) * | 2020-10-26 | 2021-08-27 | 广州朗国电子科技有限公司 | Unified compatible method and device for multiple touch interfaces, storage medium and all-in-one machine |
| CN112485031B (en) * | 2020-11-13 | 2023-07-14 | 上海伟世通汽车电子系统有限公司 | System and method for detecting functions of central control screen of automobile |
| CN115046733A (en) * | 2022-05-09 | 2022-09-13 | 中国电器科学研究院股份有限公司 | Touch screen performance detection method and device |
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Address after: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the four floor, No. Applicant after: Wuhan fine test electronics group Limited by Share Ltd Address before: 430070 Hubei City, Hongshan Province, South Lake Road, No. 53, Hongshan Venture Center, building on the four floor, No. Applicant before: Wuhan Jingce Electronic Technology Co., Ltd. |
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