CN101369201A - Fault pipe fast searching method of infrared touch screen - Google Patents
Fault pipe fast searching method of infrared touch screen Download PDFInfo
- Publication number
- CN101369201A CN101369201A CNA2008100419005A CN200810041900A CN101369201A CN 101369201 A CN101369201 A CN 101369201A CN A2008100419005 A CNA2008100419005 A CN A2008100419005A CN 200810041900 A CN200810041900 A CN 200810041900A CN 101369201 A CN101369201 A CN 101369201A
- Authority
- CN
- China
- Prior art keywords
- infrared
- pipe
- touch screen
- searching method
- control panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention relates to a fault detection method of infrared light-emitting diodes and infrared photistors forming infrared gratings in an infrared touch screen, in particular to a fast searching method of failed tubes in the infrared touch screen. In the method, electricity on firmware program of the infrared touch screen can be self-examined, infrared grids are scanned for a plurality of times under standard illumination condition, the voltage value of each photistor is read for obtaining the variable quantity when in absence of blockage and infrared illumination, and the tube is judged to be the broken one if the variable quantity is smaller than the limited value. The invention can maximally eliminate the influence of high failure rate of the infrared touch screen, and is favorable for the fast overhauling of failed touch screen, and can greatly reduce the production and maintenance costs.
Description
Technical field
The present invention relates to form in a kind of infrared touch panel the infrarede emitting diode of infrared ray grating and the fault pipe fast searching method of the fault detect of infrared phototriode, particularly a kind of infrared touch panel.
Background technology
The scanning technique of infrared touch panel depends on the interruption of the infrared ray grating in indicator screen the place ahead.Touch frame X, comprise on the Y direction infrared light-emitting diode array and phototriode array and by send-receive one to one the pattern opposing parallel install, thereby form a sightless infrared ray grating.Touch screen controller makes X, the diode array of Y direction is lighted successively and is sent infrared beam, when barrier such as finger enter the light beam grid, just blocked light beam, made one or several phototriodes detect the loss of light, thereby confirmed the X and the Y-axis coordinate that are touched by calculating the back.
Because the number of power valve and receiving tube is numerous, if one even a plurality of damaged tubular are arranged, then may make the whole touch screen cisco unity malfunction.And in production, maintenance engineering, how to judge the duty of a hundreds of pipe fast, the problem of fault location pipe is also very urgent rapidly.Cooperate automatic means of testing such as utilizing software if use conventional methods, measuring with multimeter of a pipe of a pipe then is an engineering that takes time and effort, and particularly workload is unimaginable especially when producing in batches.
Summary of the invention
The object of the present invention is to provide a kind of fault pipe fast searching method of infrared touch panel, mainly solve above-mentioned existing in prior technology defective, it can eliminate the high influence of infrared touch panel failure rate to greatest extent, help quick trouble shooting touch-screen, bigger reduction production and maintenance cost.
For addressing the above problem, the present invention is achieved in that
A kind of fault pipe fast searching method of infrared touch panel, it is characterized in that this touch-screen housing concerns installation infrared transmitting tube array and infrared receiving tube array one to one according to power valve and receiver pope in the horizontal and vertical directions, forms an infrared ray grid; Control panel and power valve array link to each other with the receiver pope array and constantly scanning read the voltage of receiver pope and deal with; Its quick finding step is:
The illumination condition does not exceed restriction when (1) guaranteeing that infrared touch panel powers on, and guarantees not have the generation of touch;
The minimal difference of power valve voltage: DiffValueMin when (2) determining infrared transmitting tube emission and not transmitting is if the difference＜DeffValueMin of the infrared receiving tube reading when lighting certain pipe and not lighting this pipe then is judged as badly and manages;
(3) control panel begins to scan whole infrared ray grid by its firmware self-check program, light earlier each pipe successively, the records of values of the infrared receiving tube that obtains is at variable R owValue[ROWMAX] and ColumnValue[COLMAX] in, under the condition of not lighting this pipe, the numerical value of record receiver pope is at RowValueBlind[ROWMAX again] and ColumnValueBlind[COLMAX] in;
ROWMAX: the number that horizontal direction infrared emission-receiver pope is right;
COLMAX: the number that vertical direction infrared emission-receiver pope is right.
(4) calculate RowDiffValue[i]=| RowValue[i]-RowValueBlind[i] |;
ColumnDiffValue[j]＝|ColumnValue[j]-ColumnValueBlind[j]|；
If RowDiffValue[i]＜DiffValueMin, then the address i with this pipe is recorded in RowBadNum[] in, the span of i is 1 to ROWMAX;
If ColumnDiffValue[j]＜DiffValueMin, then the address j with this pipe is recorded in ColumnBadNum[] in, the span of j is 1 to COLMAX;
So just bad pipe has been found out.
The fault pipe fast searching method of described infrared touch panel is characterized in that this control panel links to each other with touch-screen PC by the USB connecting line, and control panel is finished the process of self check when powering on.
The fault pipe fast searching method of described infrared touch panel is characterized in that this control panel links to each other with host computer PC by the USB line, and controls and read the state of infrared ray grid by the host computer debugging software.
The fault pipe fast searching method of described infrared touch panel is characterized in that this control panel comprises control chip, ADC load module, addressing module; This control chip is the C8051 F340 of SiliconLaboratories; The signal input part of infrared tube connects control chip by the ADC load module, and the signal output part of control chip connects the signal input part of infrared tube by the addressing module.
Description of drawings
Fig. 1 is a detection system structural drawing among the present invention.
Embodiment
The invention provides a kind of fault pipe fast searching method of infrared touch panel, power on can self check for the infrared touch panel firmware program in this method, under standard light-dark, the infrared ray grid is scanned several times, read the magnitude of voltage of each phototriode, obtain when not stopping and the variable quantity when not having the infrared light irradiation, variable quantity then is judged as bad pipe less than limit value.
Below the inventive method is described in further detail:
Fig. 1 is the related hardware configuration synoptic diagram of this method.As shown in the figure: the touch-screen housing concerns one to one according to power valve and receiver pope in the horizontal and vertical directions installs infrared transmitting tube array and infrared receiving tube array, forms an infrared ray grid.This grid can cover effective display screen of whole display screen.If there is any to be touched on screen, then the voltage of the receiver pope that is blocked on level or vertical direction of infrared ray grid can change and controlled making sheet is read.Control panel and power valve array link to each other with the receiver pope array and constantly scanning read the voltage of receiver pope and deal with.Control panel links to each other with touch-screen PC by the USB connecting line under user's user mode, and control panel is finished the process of self check when powering on.Control panel links to each other with host computer PC by the USB line under the debugging mode, and controls and read the state of infrared ray grid by the host computer debugging software.
The concrete steps of this method are:
This method further comprises the steps:
The illumination condition did not exceed restriction when (1) infrared touch panel powered on, and guaranteed not have the generation of touch.
(2) determine minimal difference a: DiffValueMin, if the difference＜DeffValueMin of the infrared receiving tube reading when lighting certain pipe and not lighting this pipe then is judged as evil idea and manages.
(3) the firmware self-check program begins to scan whole infrared ray grid, lights each pipe successively earlier, and the records of values of the infrared receiving tube that obtains is at variable R owValue[ROWMAX] and ColumnValue[COLMAX] in.Under the condition of not lighting this pipe, the numerical value of record receiver pope is at RowValueBlind[ROWMAX again], ColumnValueBlind[COLMAX] in.
ROWMAX: the number that horizontal direction infrared emission-receiver pope is right;
COLMAX: the number that vertical direction infrared emission-receiver pope is right.
(4) calculate RowDiffValue[i]=| RowValue[i]-RowValueBlind[i] |;
ColumnDiffValue[j]＝|ColumnValue[j]-ColumnValueBlind[j]|；
If RowDiffValue[i]＜DiffValueMin, then the address i with this pipe is recorded in RowBadNum[] in;
If ColumnDiffValue[j]＜DiffValueMin, then the address j with this pipe is recorded in ColumnBadNum[] in;
So just bad pipe has been found out.
Use the inventive method, what overcome a pipe of a pipe of original method seeks bad pipe with the multimeter measurement, the problem that detection efficiency is lower, and structure and the quick fault location pipe of debugging software by special use have improved efficient greatly.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (4)
1. the fault pipe fast searching method of an infrared touch panel, it is characterized in that this touch-screen housing concerns installation infrared transmitting tube array and infrared receiving tube array one to one according to power valve and receiver pope in the horizontal and vertical directions, forms an infrared ray grid; Control panel and power valve array link to each other with the receiver pope array and constantly scanning read the voltage of receiver pope and deal with; Its quick finding step is:
The illumination condition does not exceed restriction when (1) guaranteeing that infrared touch panel powers on, and guarantees not have the generation of touch;
The minimal difference of power valve voltage: DiffValueMin when (2) determining infrared transmitting tube emission and not transmitting is if the difference＜DeffValueMin of the infrared receiving tube reading when lighting certain pipe and not lighting this pipe then is judged as badly and manages;
(3) control panel begins to scan whole infrared ray grid by its firmware self-check program, light earlier each pipe successively, the records of values of the infrared receiving tube that obtains is at variable R owValue[ROWMAX] and ColumnValue[COLMAX] in, under the condition of not lighting this pipe, the numerical value of record receiver pope is at RowValueBlind[ROWMAX again] and ColumnValueBlind[COLMAX] in;
ROWMAX: the number that horizontal direction infrared emission-receiver pope is right;
COLMAX: the number that vertical direction infrared emission-receiver pope is right.
(4) calculate RowDiffValue[i]=| RowValue[i]-RowValueBlind[i] |;
ColumnDiffValue[j]＝|ColumnValue[j]-ColumnValueBlind[j]|；
If RowDiffValue[i]＜DiffValueMin, then the address i with this pipe is recorded in RowBadNum[] in, the span of i is 1 to ROWMAX;
If ColumnDiffValue[j]＜DiffValueMin, then the address j with this pipe is recorded in ColumnBadNum[] in, the span of j is 1 to COLMAX;
So just bad pipe has been found out.
2. the fault pipe fast searching method of infrared touch panel according to claim 1 is characterized in that this control panel links to each other with touch-screen PC by the USB connecting line, and control panel is finished the process of self check when powering on.
3. the fault pipe fast searching method of infrared touch panel according to claim 1 is characterized in that this control panel links to each other with host computer PC by the USB line, and controls and read the state of infrared ray grid by the host computer debugging software.
4. according to the fault pipe fast searching method of claim 1 or 2 or 3 described infrared touch panels, it is characterized in that this control panel comprises control chip, ADC load module, addressing module; This control chip is the C8051 F340 of Silicon Laboratories; The signal input part of infrared tube connects control chip by the ADC load module, and the signal output part of control chip connects the signal input part of infrared tube by the addressing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041900A CN101369201B (en) | 2008-08-20 | 2008-08-20 | Fault pipe fast searching method of infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810041900A CN101369201B (en) | 2008-08-20 | 2008-08-20 | Fault pipe fast searching method of infrared touch screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101369201A true CN101369201A (en) | 2009-02-18 |
| CN101369201B CN101369201B (en) | 2010-05-12 |
Family
ID=40413043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810041900A Expired - Fee Related CN101369201B (en) | 2008-08-20 | 2008-08-20 | Fault pipe fast searching method of infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101369201B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331888A (en) * | 2011-06-01 | 2012-01-25 | 广州视睿电子科技有限公司 | Infrared geminate transistor touch system fault detection method and device |
| CN102809707A (en) * | 2011-05-19 | 2012-12-05 | 马克西姆综合产品公司 | Touch panel testing using mutual capacitor measurements |
| CN103744558A (en) * | 2013-11-28 | 2014-04-23 | 苏州长风航空电子有限公司 | Intelligent dead point recognition and self-adaptation compensation method for infrared touch screen |
| CN104115104A (en) * | 2013-02-07 | 2014-10-22 | 深圳富创通科技有限公司 | Method for implementing infrared touch screen based on infrared optical sensor |
| CN113311268A (en) * | 2021-05-27 | 2021-08-27 | 浙江华消科技有限公司 | Method, device, equipment and medium for detecting service life of infrared emission tube |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101162417B (en) * | 2006-10-13 | 2010-08-25 | 北京汇冠新技术股份有限公司 | Method for improving infrared touch screen response speed |
| CN101187843B (en) * | 2006-11-15 | 2012-09-19 | 北京汇冠新技术股份有限公司 | Infrared touch panel |
-
2008
- 2008-08-20 CN CN200810041900A patent/CN101369201B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809707A (en) * | 2011-05-19 | 2012-12-05 | 马克西姆综合产品公司 | Touch panel testing using mutual capacitor measurements |
| CN102331888A (en) * | 2011-06-01 | 2012-01-25 | 广州视睿电子科技有限公司 | Infrared geminate transistor touch system fault detection method and device |
| CN104115104A (en) * | 2013-02-07 | 2014-10-22 | 深圳富创通科技有限公司 | Method for implementing infrared touch screen based on infrared optical sensor |
| CN103744558A (en) * | 2013-11-28 | 2014-04-23 | 苏州长风航空电子有限公司 | Intelligent dead point recognition and self-adaptation compensation method for infrared touch screen |
| CN103744558B (en) * | 2013-11-28 | 2017-01-18 | 苏州长风航空电子有限公司 | Intelligent dead point recognition and self-adaptation compensation method for infrared touch screen |
| CN113311268A (en) * | 2021-05-27 | 2021-08-27 | 浙江华消科技有限公司 | Method, device, equipment and medium for detecting service life of infrared emission tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101369201B (en) | 2010-05-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101369201B (en) | Fault pipe fast searching method of infrared touch screen | |
| CN201266364Y (en) | Self-check system for infrared touch screen | |
| JP3881148B2 (en) | Photodetection device for coordinate detection, coordinate input / detection device, electronic blackboard, mounting position detection method, and storage medium | |
| KR101032489B1 (en) | Solar power monitoring system | |
| CN101846580B (en) | Road optic testing system and method based on automatic illumination acquisition | |
| JP2009111215A (en) | Solar cell evaluation apparatus | |
| CN104316541A (en) | Defect detection device and polaroid attaching equipment | |
| CN101290283B (en) | Laser back scattering dust-measuring apparatus probe device | |
| CN104077192A (en) | Test system and method | |
| CN110261384B (en) | Detection device and detection method for silicon carbide chip | |
| CN103885647A (en) | Self-adapting restoring method for touch screen device and touch screen device | |
| CN102496342A (en) | LED display panel automatic tester | |
| KR20140023474A (en) | Apparatus and method for detecting error and change of led light | |
| CN103559472B (en) | A kind of device and method of identification card Identity Code | |
| CN109358774A (en) | Infrared touch panel scan method, device, equipment and medium | |
| CN104407887A (en) | Method and device for dynamically loading programs of kernel module of embedded type system | |
| CN202050507U (en) | Video display testing system | |
| CN201622771U (en) | Highway variable information board with function of detecting failure of LED lamp tube | |
| CN103217437A (en) | Optical element defect scanning device | |
| CN110736425B (en) | Laser projection point coordinate measuring device and measuring method thereof | |
| CN203930751U (en) | Laser scanning touch-screen | |
| CN2632670Y (en) | Laser remote sensing gas detector | |
| CN106471388B (en) | Method for testing light concentrating photovoltaic module | |
| CN102013217B (en) | LED screen body assembly system | |
| CN112631624A (en) | Correction method and correction system for photosensitive circuit board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI INESA ELECTRONICS OPTICAL DISPLAY CO., LT Free format text: FORMER NAME: SVA OPTICAL DISPLAY TECHNOLOGIES CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200233 Xuhui District, Tianlin Road, No. 140, Patentee after: INESA ELECTRON OPTICAL DISPLAY CO., LTD. Address before: 201103, No. 8, building 3, building 929, Guilin Road, Shanghai Patentee before: SVA Optical Display Technologies Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161202 Address after: 200234 Shanghai, Tianlin Road, No. 140, building 2, building, 210B, 28 Patentee after: SHANGHAI INESA ELECTRONIC MULTIMEDIA CO., LTD. Address before: 200233 Xuhui District, Tianlin Road, No. 140, Patentee before: INESA ELECTRON OPTICAL DISPLAY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20190820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |