CN102520827A - Area scanning method and area scanning device for non-head-on scanning of infrared geminate transistor touch screen, and touch screen system - Google Patents
Area scanning method and area scanning device for non-head-on scanning of infrared geminate transistor touch screen, and touch screen system Download PDFInfo
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- CN102520827A CN102520827A CN2011103803802A CN201110380380A CN102520827A CN 102520827 A CN102520827 A CN 102520827A CN 2011103803802 A CN2011103803802 A CN 2011103803802A CN 201110380380 A CN201110380380 A CN 201110380380A CN 102520827 A CN102520827 A CN 102520827A
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Abstract
The invention provides an area scanning method and an area scanning device for non-head-on scanning of an infrared geminate transistor touch screen, and an infrared geminate transistor touch screen system. The method comprises the following steps of: determining a corresponding pre-scanning area of a logic touch point in each Zigzag scanning angle according to the scanned position coordinates of the logic touch point and the preset Zigzag scanning angle, wherein at least one preset Zigzag scanning angle is provided; if at least two logic touch points are provided, taking a union set of the pre-scanning area of each logic touch point as the current Zigzag scanning area of the Zigzag scanning angle; executing Zigzag scanning on each logic touch point according to the current Zigzag scanning area of each Zigzag scanning angle, and identifying a real touch point in the logic touch point according to the Zigzag scanning result. With the method, the device and the system, the scanning area of Zigzag scanning of the infrared geminate transistor touch screen can be decreased greatly without losing the effective information, so that total time for Zigzag scanning is reduced greatly, and the touch response speed of the touch screen is improved.
Description
Technical field
The present invention relates to the non-of infrared tube touch-screen, relate in particular to non-sector scanning method, corresponding scanister, reach the infrared tube touch-screen system over against scanning over against scanning technique.
Background technology
The infrared tube touch-screen detects through paired infrared emission, the infrared receiver device of a circle whether two pipes are middle has shelter, comes recognizing touch operation.When a plurality of touch point,, need realize over against the transmitting-receiving between infrared device (like Fig. 1) through non-for the correct recognizing touch operation point position of ability.
The transmitting-receiving of a pair of infrared device is called this scanning to infrared device.Just be called over against the scanning of device and scan.Non-scanning over against device is called oblique scanning.If it is multiple that this non-group over against fluorescent tube has mode, being called has a plurality of oblique scanning angles.Accomplish the scanning process of a touch objects identification, be called a scan period.In each scan period, the fluorescent tube that oblique scanning scanned of each angle with, be called the scanning area of oblique scanning in this scan period of this angle.
The complete often fluorescent tube of mode tiltedly scans at present: the oblique scanning of each angle, in each scan period, all scan the right device of all groups.This mode is because the number of devices very many (touch-screen that size is big more is more) of scanning is so the scan period is longer, slower to the response speed that touches.
Summary of the invention
The present invention provides a kind of infrared tube touch-screen non-sector scanning method and scanister over against scanning, touch-screen system, reduces the always consuming time of tiltedly scanning, improves the touch-responsive speed of touch-screen.
The non-sector scanning method over against scanning of infrared tube touch-screen provided by the invention comprises step:
Tiltedly sweep angle according to the logic touch point position coordinate that scans and preset and confirm that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each; Said preset tiltedly sweep angle at least one;
If said logic touch point has two at least, then the union in the prescan of each logic touch point zone is tiltedly swept the current zone of tiltedly sweeping of angle as this;
According to each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, discern the true touch point in the said logic touch point according to tiltedly sweeping the result.
The non-sector scanning method over against scanning of another kind of infrared tube touch-screen provided by the invention comprises step:
Tiltedly sweep angle according to the logic touch point position coordinate that scans and preset and confirm that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each;
If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein one tiltedly sweep angle the union in prescan zone tiltedly sweep the current zone of tiltedly sweeping of angle as this; In this current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep the touch point of debug logic as a result according to what this tiltedly swept angle;
Tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one with getting rid of remaining each said logic touch point, back;
Tiltedly sweep the current zone of tiltedly sweeping of angle according to the said next one remaining each said logic touch point is tiltedly swept, according to tiltedly sweeping the touch point of debug logic as a result.
The non-sector scanning device over against scanning of infrared tube touch-screen of the present invention comprises:
Calculation element is used for tiltedly sweeping angle according to the logic touch point position coordinate that scans and preset and confirms that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each; Said preset tiltedly sweep angle at least one; And if said logic touch point has two at least, then the union in the prescan zone of each logic touch point is tiltedly swept the current zone of tiltedly sweeping of angle as this;
Control device is used to control infrared tube and according to each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept;
Recognition device is used for according to tiltedly sweeping the true touch point that the result discerns said logic touch point.
The non-sector scanning device over against scanning of another kind of infrared tube touch-screen of the present invention comprises:
Computing module is used for tiltedly sweeping the pairing prescan of angle zone according to the logic touch point position coordinate that scans and preset this logic touch point of angle calculation of tiltedly sweeping at each; If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein the union in a prescan zone of tiltedly sweeping angle tiltedly sweep the current zone of tiltedly sweeping of angle as this; And will get rid of remaining each said logic touch point, back and tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one;
Control module; Be used to control infrared lamp earlier therein the current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep remaining each said logic touch point in the current zone of tiltedly sweeping of tiltedly sweeping angle based on the next one then;
Identification module is used for tiltedly sweeping the error-logic touch point that the result gets rid of this scanning according to what tiltedly sweep angle at each, notifies said computing module with remaining logic touch point.
Infrared tube touch-screen system of the present invention comprises:
Sector scanning device and infrared tube; Said sector scanning device comprises:
Computing module is used for tiltedly sweeping the pairing prescan of angle zone according to the logic touch point position coordinate that scans and preset this logic touch point of angle calculation of tiltedly sweeping at each; If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein the union in a prescan zone of tiltedly sweeping angle tiltedly sweep the current zone of tiltedly sweeping of angle as this; And will get rid of remaining each said logic touch point, back and tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one;
Control module; Be used to control infrared lamp earlier therein the current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep remaining each said logic touch point in the current zone of tiltedly sweeping of tiltedly sweeping angle based on the next one then;
Identification module is used for tiltedly sweeping the error-logic touch point that the result gets rid of this scanning according to what tiltedly sweep angle at each, notifies said computing module with remaining logic touch point;
Said infrared tube, the control that is used to accept control module scans said touch-screen.
The non-sector scanning device over against scanning of infrared tube touch-screen of the present invention comprises: above-mentioned zone scanister and infrared tube; Said infrared tube, the control that is used to accept control module scans said touch-screen.
The present invention is through after confirming position, logic touch point, and logic-based coordinate points position is provided with the scanning area of oblique scanning.Can under the prerequisite of not losing effective information, dwindle the tiltedly scanning area of scanning of infrared tube touch-screen significantly through the present invention, the total consuming time of oblique scanning descended significantly, thereby improve the touch-responsive speed of touch-screen.
Description of drawings
Fig. 1 is a non-synoptic diagram over against infrared scan in the prior art;
Fig. 2 is the process flow diagram of embodiment 1;
Fig. 3, the synoptic diagram of Fig. 4 for just scanning;
Fig. 5 is the synoptic diagram of logic touch point;
Fig. 6 sweeps the synoptic diagram in zone for confirming preemphasis;
Fig. 7 confirms that certain tiltedly sweeps the current synoptic diagram of tiltedly sweeping the zone of angle;
Fig. 8-Figure 10 is the different current synoptic diagram of tiltedly sweeping the zone of tiltedly sweeping angle;
Figure 11 is the logic diagram of sector scanning device among the embodiment.
Embodiment
First embodiment: only set forth in the present embodiment and tiltedly sweep the non-sector scanning method of infrared tube touch-screen that angle is carried out sector scanning over against scanning at one.
As shown in Figure 2; As an embodiment; Present embodiment is earlier through the positive scan mode touch screen scanning that prior art provided, and obtain logic touch point position coordinate on the touch-screen (step 1), do not get rid of the user certainly yet and carry out this step through other modes:
After touch-screen starts, begin just to scan, as Fig. 3, shown in, counted no more than 1 o'clock in the touch that is just scanning, continue just to scan, based on the fluorescent tube that touch objects is blocked, judge the position, touch point, like Fig. 4.According to the fluorescent tube that touch objects is blocked, position, decision logic touch point is like Fig. 5.Its orbicular spot is a true touch point, and dotted line is for just scanning the light that is blocked, and little square is through just scanning the logical coordinates point (position that promptly possibly have true touch point) that the light that is blocked obtains.
If touch and to count, then begin tiltedly to sweep:, tiltedly sweep angle according to the logic touch point position coordinate that scans and preset and confirm that this logic touch point tiltedly sweeping the pairing prescan zone of angle (step 2) like Fig. 6 more than one; With the union in the prescan of each logic touch point zone as this tiltedly sweep angle current tiltedly sweep the zone (step 3), as shown in Figure 7; Tiltedly sweep each logic touch point in the zone of tiltedly sweeping according to current, and discerns the true touch point (step 4) in the said logic touch point according to tiltedly sweeping the result.
Second embodiment: present embodiment is set forth a plurality of non-sector scanning methods over against scanning of infrared tube touch-screen of carrying out sector scanning when tiltedly sweeping angle.
Owing to there are a plurality of angles of tiltedly sweeping, therefore, need confirm during step 2 in carrying out first embodiment that each logic touch point tiltedly sweeps the pairing preemphasis of angle at each and sweep the zone.The union in the prescan zone of each the logic touch point when when execution in step 3, determining each and tiltedly sweeping angle, and tiltedly sweep the current zone of tiltedly sweeping of angle as this, like Fig. 8 to Figure 10.Tiltedly sweep under the angle at each respectively during true touch point and tiltedly sweep tiltedly sweeping identification through step 4, when tiltedly sweeping after angle all scanned, tiltedly sweep the true touch point in the comprehensive decision logic of the scanning result touch point of angle based on each to all.
The 3rd embodiment: in the present embodiment second embodiment is done further optimization.There are a plurality of angles of tiltedly sweeping in the present embodiment equally.Different with second embodiment, following in the process of execution in step 2 to step 4:
Confirm that at first one of them tiltedly sweeps the current zone of tiltedly sweeping of angle; Tiltedly sweep under the angle at this each logic touch point is tiltedly swept; Wouldn't need judge other and tiltedly sweep the sweep limits of angle, tiltedly sweep exclusive segment error-logic touch point as a result based on what this tiltedly swept angle then; Remaining logic touch point is tiltedly swept the current foundation of tiltedly sweeping the zone of angle as definite next one; That is, tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one with getting rid of remaining each logic touch point, back.Tiltedly sweep the zone at this remaining each logic touch point is tiltedly swept, according to tiltedly sweeping the touch point of debug logic as a result.Logic touch point after will getting rid of is then all scanned completion as next current definite foundation of tiltedly sweeping the zone of tiltedly sweeping angle until all angles of tiltedly sweeping, and has perhaps identified all true touch points.Be all through scanning result exclusive segment logic touch point, to reduce the scanning area of next tilted direction after the scanning of each rake angle.
The present embodiment certificate is according to the oblique scanning correction of carrying out earlier or get rid of the logical coordinates point, and it is not to carry out simultaneously that the area size of the tilted direction that carries out after reduction scanning will make the scanning of each tilted direction, thereby the scanning area of equipment further reduces, and reaches better effect.
Embodiment 4, provide the infrared tube touch-screen non-sector scanning device over against scanning in the present embodiment, and the function of this device is corresponding with the scan method of above-mentioned each embodiment.This device comprises: computing module, identification module and control module.Shown in figure 11, show logic diagram with the corresponding sector scanning device of the 3rd embodiment.
Embodiment 5: the infrared tube touch-screen system is provided in the present embodiment, has also comprised infrared tube the sector scanning device in comprising embodiment 4, the control of accepting control module scans.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (9)
1. the non-sector scanning method over against scanning of infrared tube touch-screen is characterized in that, comprises step:
Tiltedly sweep angle according to the logic touch point position coordinate that scans and preset and confirm that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each; Said preset tiltedly sweep angle at least one;
If said logic touch point has two at least, then the union in the prescan of each logic touch point zone is tiltedly swept the current zone of tiltedly sweeping of angle as this;
According to each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, discern the true touch point in the said logic touch point according to tiltedly sweeping the result.
2. the non-sector scanning method of infrared tube touch-screen according to claim 1 over against scanning; It is characterized in that: if the said preset angle of tiltedly sweeping is at least two; According to each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, comprises according to tiltedly sweeping the step that the result discerns the true touch point in the said logic touch point:
Each said logic touch point is tiltedly swept simultaneously, after having scanned each and tiltedly sweeping angle, discern the true touch point in the said logic touch point according to each result that tiltedly sweeps who tiltedly sweeps angle in each current zone of tiltedly sweeping of tiltedly sweeping angle.
3. the non-sector scanning method over against scanning of infrared tube touch-screen is characterized in that, comprises step:
Tiltedly sweep angle according to the logic touch point position coordinate that scans and preset and confirm that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each;
If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein the union in a prescan zone of tiltedly sweeping angle tiltedly sweep the current zone of tiltedly sweeping of angle as this; In this current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep the touch point of debug logic as a result according to what this tiltedly swept angle;
Tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one with getting rid of remaining each said logic touch point, back;
Tiltedly sweep the current zone of tiltedly sweeping of angle according to the said next one remaining each said logic touch point is tiltedly swept, according to tiltedly sweeping the touch point of debug logic as a result.
4. the non-sector scanning device over against scanning of infrared tube touch-screen is characterized in that, comprising:
Calculation element is used for tiltedly sweeping angle according to the logic touch point position coordinate that scans and preset and confirms that this logic touch point tiltedly sweeps the pairing prescan of angle zone at each; Said preset tiltedly sweep angle at least one; And if said logic touch point has two at least, then the union in the prescan zone of each logic touch point is tiltedly swept the current zone of tiltedly sweeping of angle as this;
Control device is used to control infrared tube and according to each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept;
Recognition device is used for according to tiltedly sweeping the true touch point that the result discerns said logic touch point.
5. sector scanning device according to claim 4; It is characterized in that: if the said preset angle of tiltedly sweeping is at least two; Said control device is controlled said infrared tube and in each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept; Said recognition device is discerned the true touch point in the said logic touch point according to each result that tiltedly sweeps who tiltedly sweeps angle after having scanned each and tiltedly sweeping angle.
6. the non-sector scanning device over against scanning of infrared tube touch-screen is characterized in that, comprising:
Computing module is used for tiltedly sweeping the pairing prescan of angle zone according to the logic touch point position coordinate that scans and preset this logic touch point of angle calculation of tiltedly sweeping at each; If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein one tiltedly sweep angle the union in prescan zone tiltedly sweep the current zone of tiltedly sweeping of angle as this; And will get rid of remaining each said logic touch point, back and tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one;
Control module; Be used to control infrared lamp earlier therein the current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep remaining each said logic touch point in the current zone of tiltedly sweeping of tiltedly sweeping angle based on the next one then;
Identification module is used for tiltedly sweeping the error-logic touch point that the result gets rid of this scanning according to what tiltedly sweep angle at each, notifies said computing module with remaining logic touch point.
7. an infrared tube touch-screen system is characterized in that, comprising:
Sector scanning device and infrared tube; Said sector scanning device comprises:
Computing module is used for tiltedly sweeping the pairing prescan of angle zone according to the logic touch point position coordinate that scans and preset this logic touch point of angle calculation of tiltedly sweeping at each; If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein one tiltedly sweep angle the union in prescan zone tiltedly sweep the current zone of tiltedly sweeping of angle as this; And will get rid of remaining each said logic touch point, back and tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one;
Control module; Be used to control infrared lamp earlier therein the current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep remaining each said logic touch point in the current zone of tiltedly sweeping of tiltedly sweeping angle based on the next one then;
Identification module is used for tiltedly sweeping the error-logic touch point that the result gets rid of this scanning according to what tiltedly sweep angle at each, notifies said computing module with remaining logic touch point;
Said infrared tube, the control that is used to accept control module scans said touch-screen.
8. infrared tube touch-screen system according to claim 7; It is characterized in that: if the said preset angle of tiltedly sweeping is at least two; Said control device is controlled said infrared tube and in each current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept; Said recognition device is discerned the true touch point in the said logic touch point according to each result that tiltedly sweeps who tiltedly sweeps angle after having scanned each and tiltedly sweeping angle.
9. the non-sector scanning device over against scanning of infrared tube touch-screen is characterized in that, comprising: sector scanning device and infrared tube; Said sector scanning device comprises:
Computing module is used for tiltedly sweeping the pairing prescan of angle zone according to the logic touch point position coordinate that scans and preset this logic touch point of angle calculation of tiltedly sweeping at each; If saidly preset tiltedly sweep angle and said logic touch point is at least two, then with each logic touch point therein the union in a prescan zone of tiltedly sweeping angle tiltedly sweep the current zone of tiltedly sweeping of angle as this; And will get rid of remaining each said logic touch point, back and tiltedly sweep the union in the prescan zone of angle is tiltedly swept angle as the next one the current zone of tiltedly sweeping at the next one;
Control module; Be used to control infrared lamp earlier therein the current zone of tiltedly sweeping of tiltedly sweeping angle each said logic touch point is tiltedly swept, tiltedly sweep remaining each said logic touch point in the current zone of tiltedly sweeping of tiltedly sweeping angle based on the next one then;
Identification module is used for tiltedly sweeping the error-logic touch point that the result gets rid of this scanning according to what tiltedly sweep angle at each, notifies said computing module with remaining logic touch point;
Said infrared tube, the control that is used to accept control module scans said touch-screen.
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| CN201110380380.2A CN102520827B (en) | 2011-11-25 | 2011-11-25 | Infrared tube touch-screen anon-normal is to the sector scanning method of scanning and scanister, touch-screen system |
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| CN201110380380.2A CN102520827B (en) | 2011-11-25 | 2011-11-25 | Infrared tube touch-screen anon-normal is to the sector scanning method of scanning and scanister, touch-screen system |
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| CN102520827B CN102520827B (en) | 2015-11-25 |
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| CN105955553A (en) * | 2016-06-20 | 2016-09-21 | 青岛海信电器股份有限公司 | Infrared touch screen scanning method and device |
| CN106354324A (en) * | 2016-09-06 | 2017-01-25 | 青岛海信电器股份有限公司 | Scanning method and device of infrared touch screen |
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| WO2015180247A1 (en) * | 2014-05-30 | 2015-12-03 | 湖州佳格电子科技有限公司 | Method for determining range to be scanned and light paths to be scanned in touch area recognition |
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| CN106354324B (en) * | 2016-09-06 | 2020-04-03 | 青岛海信电器股份有限公司 | Scanning method and device of infrared touch screen |
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| CN102520827B (en) | 2015-11-25 |
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