CN104898900A - Infrared touch frame scanning method and infrared touch frame - Google Patents
Infrared touch frame scanning method and infrared touch frame Download PDFInfo
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- CN104898900A CN104898900A CN201510364062.5A CN201510364062A CN104898900A CN 104898900 A CN104898900 A CN 104898900A CN 201510364062 A CN201510364062 A CN 201510364062A CN 104898900 A CN104898900 A CN 104898900A
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Abstract
The invention discloses an infrared touch frame scanning method and an infrared touch frame. The infrared touch frame scanning method and the infrared touch frame are used for improving the touch point discovery efficiency when performing infrared scanning. The infrared touch frame scanning method includes that enabling a controller to control an emitter in the short edge direction to send infrared signals to a corresponding receiver in sequence to scan, if a covered region is not scanned in the short edge direction, continuing to scan in the short edge direction till the covered region is scanned in the short edge direction, controlling an emitter in the long edge direction to send infrared signals to a corresponding receiver in sequence to scan, and enabling the controller to calculate the coordinate point of the covered region according to the one-dimensional coordinate of the covered region in the long edge direction and the one-dimensional coordinate of the covered region in the short edge direction. According to the infrared touch frame scanning method and the infrared touch frame, before the touch point falls on the infrared touch frame, an operator only needs to globally scan the short edge direction of the infrared touch frame, before the short edge is shorter than the long edge, the scanning time is shortened, and the touch point discovery efficiency is improved.
Description
Technical field
The present invention relates to touch screen technology field, particularly relate to method and the infrared touch frame of the scanning of a kind of infrared touch frame.
Background technology
Infrared touch panel (Infrared Touch Screen Technology) is made up of the Infrared emitting and receiving sensing element be contained on touch-screen housing, screen surface is formed infra-red detection net, when pointing in touch screen, two infrared rays anyhow through this position will be blocked, thus can judge the coordinate position of touch point at screen.
The frame of general touch-screen is closely aligned infrared transmitter and infrared remote receiver, by the controller of touch-screen, lights each transmitter in order and detect corresponding receiver to receive how many infrared lights.In prior art, the scan method of general infrared tube touch-screen adopts first to scan the whole scan mode that X-direction (that is: long limit) scans Y-direction (that is: minor face) again and carry out.Be specially: along direction of scanning being scanned successively until whole end of scan, for Fig. 1, the transmitter in controller control X-direction and receiver, order is from 1 signal lamp pipe, and then 2 signal lamp pipes, successively until 21 signal lamp pipes; Transmitter in X-direction and receiver scanned, then start the scanning of Y-direction, the scanning of Y-direction is carried out to M fluorescent tube successively one by one from A fluorescent tube too.The coordinate time having got the region that is blocked in X-direction and Y-direction when processor is only had just to stop whole scan entering partial sweep, and ought not scan touch point in the X direction, the coordinate in the Y-direction of touch point can be got when scanning touch point in the Y direction, now, need the scanning carried out again in an X-direction, to obtain the coordinate in the X-direction of this touch point, therefore in such cases, the longest time of coordinate obtaining touch point is: whole scan in X-direction time+Y-direction on whole scan time+X-direction on the whole scan time.
In the infrared touch frame that such scan mode is comparatively large in size, infrared tube is more, due to do not have touch point fall before to scan whole touch frame, therefore sweep time is long, easily causes the problem of loss stroke.
Summary of the invention
Embodiments provide method and the infrared touch frame of the scanning of a kind of infrared touch frame, sweep time during infrared touch frame discovery touch point can be shortened, improve the efficiency finding touch point.
First aspect, embodiments provides the method for a kind of infrared touch frame scanning, comprising: the controller transmitter controlled on the short side direction of infrared touch frame sequentially sends infrared signal to the receiver of correspondence and scans; If do not scan the region that is blocked on short side direction, then the transmitter continuation that controller controls on infrared touch frame short side direction sequentially scans to the receiver of correspondence transmission infrared signal; If scan the region that is blocked on short side direction, then controller obtains the first one-dimensional coordinate be blocked on the short side direction in region, and this region that is blocked is first to be blocked region; The controller transmitter controlled on the long side direction of infrared touch frame sequentially sends infrared signal to the receiver of correspondence and scans, if scan first to be blocked region on long side direction, then controller obtains the first the first one-dimensional coordinate be blocked on the long side direction in region; Controller calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate on short side direction and the first one-dimensional coordinate on long side direction.
In conjunction with first aspect, in the first possible implementation of first aspect, controller calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate on short side direction and the first one-dimensional coordinate on long side direction and comprises: calculate first according to the first one-dimensional coordinate on the first one-dimensional coordinate on short side direction and long side direction and to be blocked the central point in region or the coordinate of focus point, the coordinate of central point or focus point is the first coordinate.
In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second of first aspect is possible, if scan first to be blocked region on short side direction, long side direction does not scan first to be blocked region, the transmitter that then controller controls on the short side direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the second the second one-dimensional coordinate be blocked on the short side direction in region again; The transmitter that controller controls on the long side direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the second the second one-dimensional coordinate be blocked on the long side direction in region again; Controller calculates the second the second coordinate being blocked region according to the second one-dimensional coordinate on short side direction and the second one-dimensional coordinate on long side direction.
In conjunction with the first possible implementation of first aspect or first aspect, in the third possible implementation of first aspect, controller according to the first one-dimensional coordinate on short side direction and the first one-dimensional coordinate on long side direction calculate first be blocked region the first coordinate after also comprise: the first coordinate is sent to the processor of computing machine by controller.
In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, controller also comprises after the first coordinate is sent to the processor of computing machine: controller calculates target scan areas according to the first be blocked region and self preset value, and target scan areas is greater than first and is blocked region; Transmitter order on the short side direction of controller control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the short side direction in region; Transmitter order on the long side direction of controller control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the long side direction in region; Controller calculates the 3rd three-dimensional being blocked region according to the 3rd one-dimensional coordinate on the 3rd one-dimensional coordinate on short side direction and long side direction.
Second aspect, embodiments provides a kind of infrared touch frame, it is characterized in that, comprising:
Controller, the transmitter on short side direction and receiver, the transmitter on long side direction and receiver;
Controller comprises:
Control module, sequentially send infrared signal to the receiver of correspondence for the transmitter controlled on short side direction to scan, when do not scan on short side direction first be blocked region time, control the transmitter continuation order on short side direction and send infrared signal to the receiver of correspondence and scan; Acquiring unit, for scan on short side direction when control module first be blocked region time, obtain first the first one-dimensional coordinate of being blocked on the short side direction in region; Control module, the transmitter order also on the long side direction controlling infrared touch frame scans to the receiver transmission infrared signal of correspondence; Acquiring unit, also for scan on long side direction when control module first be blocked region time, obtain first the first one-dimensional coordinate of being blocked on the long side direction in region; Computing unit, the first one-dimensional coordinate on the long side direction that the first one-dimensional coordinate on the short side direction obtained according to acquiring unit and second acquisition unit obtain calculates the first the first coordinate being blocked region.
In conjunction with second aspect, in the first possible implementation of second aspect, computing unit specifically for: calculate first according to the first one-dimensional coordinate on the first one-dimensional coordinate on short side direction and long side direction and to be blocked the central point in region or the coordinate of focus point, the coordinate of central point or focus point is the first coordinate.
In conjunction with second aspect, or the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, control module also for: to be blocked region when scanning first on short side direction, long side direction does not scan first be blocked region time, the transmitter controlled on the short side direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence again, to obtain the second the second one-dimensional coordinate be blocked on the short side direction in region, afterwards, the transmitter controlled on the long side direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence again, to obtain the second the second one-dimensional coordinate be blocked on the long side direction in region, computing unit, also for calculating the second the second coordinate being blocked region according to the second one-dimensional coordinate on short side direction and the second one-dimensional coordinate on long side direction.
In conjunction with second aspect, or the first possible implementation of second aspect, in the third possible implementation of second aspect, controller also comprises: transmitting element, and the first coordinate for being calculated by computing unit is sent to the processor of computing machine.
In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect, computing unit is also for calculating target scan areas according to the first be blocked region and self preset value, and target scan areas is greater than first and is blocked region; Control module, transmitter also on the short side direction of control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the short side direction in region, afterwards, transmitter on the long side direction of control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the long side direction in region; Computing unit, also for the three-dimensional in the region that is blocked according to the 3rd one-dimensional coordinate calculating the 3rd on the 3rd one-dimensional coordinate on short side direction and long side direction.
As can be seen from the above technical solutions, the scheme of the embodiment of the present invention has following beneficial effect:
In the embodiment of the present invention, the scanning of infrared touch frame is not adopt first to scan the whole scan mode that long side direction scans short side direction again, but the whole scan (that is: the transmitter order on short side direction scans to the receiver transmission infrared signal of correspondence) first carried out on the short side direction of infrared touch frame, if do not scan the region that is blocked on short side direction, then carry out the whole scan on short side direction again, until short side direction has scanned when being blocked region, just carry out the whole scan (that is: the transmitter order on long side direction scans to the receiver transmission infrared signal of correspondence) on long side direction again, if scan this region that is blocked on long side direction, the coordinate points in this region that is blocked then is calculated according to this be blocked one-dimensional coordinate on the long side direction in region and the one-dimensional coordinate on short side direction.Therefore, infrared touch frame does not have touch point fall before only need to carry out whole scan to the short side direction of infrared touch frame because short side direction is shorter than long side direction, thus shorten sweep time, improve and find the efficiency of touch point, reduce and lose stroke or the short probability of stroke.
Term " first ", " second ", " the 3rd " " 4th " etc. (if existence) in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.The embodiments described herein should be appreciated that the data used like this can be exchanged in the appropriate case, so that can be implemented with the order except the content except here diagram or description.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
In embodiments of the present invention, infrared touch frame is by be applied on the product such as infrared touch panel or infrared electronic white board, for infrared touch panel, infrared touch panel is that an infrared touch frame is installed in face in front of the display, four limits of infrared touch frame are placed with infrared transmitter and infrared remote receiver, launch infrared signal by transmitter, corresponding receiver receives infrared signal, thus realizes the scanning to touch point.
In embodiments of the present invention, infrared touch frame comprises controller, infrared transmitter and infrared remote receiver, in four limits of infrared touch frame, there is the width of an opposite side longer than the width of another opposite side, in the art, usually the direction at place, limit long for width is referred to as X-direction, the direction at place, limit short for width is referred to as Y-direction, therefore, in all embodiments of the invention, long limit X-direction stated, minor face Y-direction is stated.
Composition graphs 2, in the embodiment of the present invention, an a kind of embodiment of method of infrared touch frame scanning comprises:
201, the transmitter that controller controls in the minor face Y-direction of infrared touch frame sequentially scans to the receiver of correspondence transmission infrared signal;
After infrared touch frame powers on, first carry out the whole scan in the Y-direction on infrared touch frame, the transmitter order namely in Y-direction scans to the receiver transmission infrared signal of correspondence.
It should be noted that, the order of whole scan herein comprises: order is from No. 1 transmitter of in Y-direction, and then No. 2 transmitters, successively until the most end transmitter of Y-direction; Also can be from the most end transmitter of Y-direction, then second from the bottom transmitter, successively until the Y-direction No. 1 transmitter.
If 202 do not scan the region that is blocked in the Y direction, then the transmitter continuation that controller controls in infrared touch frame Y-direction sequentially scans to the receiver of correspondence transmission infrared signal;
If in the whole scan process in Y-direction in step 201, if the receiving tube of Y-direction can receive corresponding tube-launched infrared signal, then illustrate and Y-direction does not scan the region that is blocked, now, continue the whole scan in Y-direction, the controller transmitter continuation controlled in the Y-direction of infrared frame sequentially sends infrared signal to the receiver of correspondence and scans, and repeats the scanning process of step 201, until scan the region that is blocked in the Y direction.
If 203 scan the region that is blocked in the Y direction, then controller obtains the first one-dimensional coordinate be blocked in the Y-direction in region;
If in the whole scan process of the Y-direction in step 201 or step 202, some receiver in Y-direction does not receive the infrared signal sent from the transmitter of correspondence, then can determine that this region in Y-direction is the region that is blocked, this Time Controller gets the position of these receiving tubes or power valve, thus obtain the coordinate be blocked in the Y-direction in region, this coordinate is referred to as the first one-dimensional coordinate in Y-direction, this region that is blocked is referred to as first and is blocked region.
It should be noted that, the first coordinate be blocked in the Y-direction in region that controller gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from Y
20=20 to Y
30=30, so the first one-dimensional coordinate in Y-direction is an one-dimensional coordinate interval.
204, the transmitter that controller controls in the long limit X-direction of infrared touch frame sequentially scans to the receiver of correspondence transmission infrared signal;
After controller gets the first one-dimensional coordinate be blocked in the Y-direction in region scanned, carry out the whole scan in the X-direction on infrared touch frame again, the transmitter that namely controller controls in the long limit X-direction of infrared touch frame sequentially scans to the receiver of correspondence transmission infrared signal.
It should be noted that, the whole scan order scanning in X-direction can comprise: order is from No. 1 transmitter of in X-direction, and then No. 2 transmitters, successively until the most end transmitter of X-direction; Also can be from the most end transmitter of X-direction, then second from the bottom transmitter, successively until the X-direction No. 1 transmitter.
To be blocked region if 205 scan first in the X direction, then controller obtains the first the first one-dimensional coordinate be blocked in the X-direction in region;
If in the whole scan process of the X-direction of step 204, some receiver in X-direction does not receive the infrared signal sent from the transmitter of correspondence, then controller can get the position of these receiving tubes or power valve, thus obtain the first coordinate be blocked in the X-direction in region, this coordinate is referred to as the first one-dimensional coordinate in X-direction.
It should be noted that, the first coordinate be blocked in the X-direction in region that controller gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from X
3=3 to X
13=13, so the first one-dimensional coordinate in X-direction is an one-dimensional coordinate interval.
206, controller calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction.
Controller, after getting the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction, calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction.
In the embodiment of the present invention, the scanning of infrared touch frame is not adopt first to scan the whole scan mode that long limit X-direction scans minor face Y-direction again, but the whole scan first carried out in the minor face Y-direction of infrared touch frame, if do not scan the region that is blocked in the Y direction, then carry out the whole scan in Y-direction again, if scan the region that is blocked in the Y direction, then carry out the whole scan in the X-direction of long limit again, if scan this region that is blocked in the X direction, the coordinate points in this region that is blocked then is calculated according to this be blocked one-dimensional coordinate in the X-direction in region and the one-dimensional coordinate in Y-direction.Therefore, infrared touch frame does not have touch point fall before only need to carry out whole scan to the Y-direction of infrared touch frame, thus shorten sweep time, improve the efficiency finding touch point, reduce and lose stroke or the short probability of stroke.
As another embodiment, in actual applications, controller calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction specifically two kinds of methods:
First method:
The first central point being blocked region is calculated, using the coordinate points of the coordinate points of central point as the region that is blocked according to the first one-dimensional coordinate in the first one-dimensional coordinate in Y-direction and X-direction.Wherein, the central point calculating the region that is blocked is prior art, does not illustrate herein.
Second method:
The first focus point being blocked region is calculated, using the coordinate points of the coordinate points of focus point as the region that is blocked according to the first one-dimensional coordinate in the first one-dimensional coordinate in Y-direction and X-direction.Wherein, the focus point calculating the region that is blocked is prior art, does not illustrate herein.
The coordinate points in the region that is blocked herein obtained is referred to as the first coordinate points.
It should be noted that, the mode calculating the coordinate points in the region that is blocked according to the one-dimensional coordinate in the one-dimensional coordinate be blocked in the X-direction in region and Y-direction, except above-mentioned two kinds of methods, can also be method for distinguishing, specifically not limit herein.
What above-described embodiment described is all scanned the situation in the region that is blocked with X-direction in the Y direction, the following describes in Y-direction in the embodiment shown in Figure 2 and has scanned the region that is blocked, and do not scan the situation in this region that is blocked in the X direction.
Composition graphs 3, in the invention process, another embodiment of a kind of method of infrared touch frame scanning comprises:
Step 201 in embodiment shown in step 301 to step 306 with Fig. 2 is identical to step 206, specifically repeats no more herein.
To be blocked region if 307 scan first in the Y direction, do not scan first to be in the X direction blocked region, the transmitter that then controller controls in the Y-direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the second the second one-dimensional coordinate be blocked in the Y-direction in region again;
If scanning in the X direction of describing in step 205 in the embodiment shown in Figure 2 first is blocked on the basis in region, if scan first to be in the Y direction blocked region, and due to reasons such as false touches, do not scan first to be in the X direction blocked region, then whole scan from Y-direction again again, re-executes the step in the embodiment shown in Fig. 2.Specific as follows:
Controller control transmitter in the Y-direction of infrared touch frame again order send infrared ray to the receiver of correspondence and scan, when do not scan in the Y direction be blocked region time, multiple scanning Y-direction, until scan the region that is blocked in the Y direction.
When scan in the Y direction be blocked region time, then obtain the one-dimensional coordinate that this is blocked in the Y-direction in region, the region that this is blocked is referred to as second and is blocked region, and this one-dimensional coordinate be blocked in the Y-direction in region obtained is referred to as the second one-dimensional coordinate.
It should be noted that, identical with the embodiment shown in Fig. 2, the order of the whole scan in Y-direction comprises: order is from No. 1 transmitter of in Y-direction, and then No. 2 transmitters, successively until the most end transmitter of Y-direction; Also can be from the most end transmitter of Y-direction, then second from the bottom transmitter, successively until the Y-direction No. 1 transmitter.
It should be noted that, the second coordinate be blocked in the Y-direction in region that controller gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from Y
50=50 to Y
60=60, so the second one-dimensional coordinate in Y-direction is an one-dimensional coordinate interval.
308, the transmitter that controller controls in the X-direction of infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the second the second one-dimensional coordinate be blocked in the X-direction in region again;
After getting at controller the first one-dimensional coordinate be blocked in the Y-direction in region scanned, carry out the whole scan in the X-direction on infrared touch frame again, the transmitter that namely controller controls in the X-direction of infrared touch frame sequentially scans to the receiver of correspondence transmission infrared signal.
It should be noted that, the whole scan order scanning in X-direction can comprise: order is from No. 1 transmitter of in X-direction, and then No. 2 transmitters, successively until the most end transmitter of X-direction; Also can be from the most end transmitter of X-direction, then second from the bottom transmitter, successively until the X-direction No. 1 transmitter.
If in the whole scan process of X-direction, the receiver of the second occlusion area in X-direction will not receive the infrared signal sent from the transmitter of correspondence, then controller can get the position of these receiving tubes or power valve, thus obtain the first coordinate be blocked in the X-direction in region, this coordinate is referred to as the second one-dimensional coordinate in X-direction.
It should be noted that, the second coordinate be blocked in the X-direction in region that controller gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from X
5=5 to X
15=15.
309, controller calculates the second the second coordinate being blocked region according to the second one-dimensional coordinate in Y-direction and the second one-dimensional coordinate in X-direction.
Controller is after getting the second one-dimensional coordinate in Y-direction and the second one-dimensional coordinate in X-direction, calculate the second coordinate being blocked region according to the second one-dimensional coordinate in Y-direction and the second one-dimensional coordinate in X-direction, this coordinate is referred to as the second coordinate.
It should be noted that, calculating the second concrete mode of coordinate being blocked region can be: calculate second according to the second one-dimensional coordinate in the second one-dimensional coordinate in Y-direction and X-direction and to be blocked the central point in region or focus point, using the coordinate points of the coordinate points of central point or focus point as the region that is blocked.
In the embodiment of the present invention, infrared touch frame has scanned the region that is blocked in the Y direction, do not scan in the X direction this be blocked region time, restart the whole scan in Y-direction again, if do not scan the region that is blocked in the Y direction, multiple scanning Y-direction again, until Y-direction has scanned second be blocked region time, then continue scanning X-direction.Thus when not obtaining by the coordinate points of the first occlusion area, continue the step of getting back to scanning Y-direction again, multiple scanning Y-direction, the region until discovery second is blocked, because Y-direction is shorter than X-direction, therefore, relative to the first scanning X-direction of prior art, scan the mode of Y-direction again, the embodiment of the present invention is conducive to improving and finds to be blocked the efficiency in region.
As another embodiment, on the scene basis that the embodiment shown in Fig. 2 describes, controller described by step 206 according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction calculate first be blocked region the first coordinate after, first coordinate is sent to the processor of computing machine by controller, this coordinate points can be presented on infrared touch panel or infrared electronic white board to make computing machine.
Optionally, as another embodiment, on the scene basis that the embodiment shown in Fig. 3 describes, controller described by step 306 according to the second one-dimensional coordinate in Y-direction and the second one-dimensional coordinate in X-direction calculate second be blocked region the second coordinate after, second coordinate is sent to the processor of computing machine by controller, this coordinate points can be presented on infrared touch panel or infrared electronic white board to make computing machine.
Controller is after the coordinate obtaining the region that is blocked, and in order to improve the efficiency of scanning, the partial sweep in the region at place, region of only carrying out being blocked, specifically describes the process of partial sweep below.
Composition graphs 4, in the invention process, another embodiment of a kind of method of infrared touch frame scanning comprises:
Step 201 in embodiment shown in step 401 to step 406 with Fig. 2 is identical to step 206, specifically repeats no more herein.
407, controller calculates target scan areas according to the first be blocked region and self preset value, and target scan areas is greater than first and is blocked region;
Controller is obtaining the first the first coordinate being blocked region, after first coordinate being sent to the processor of computing machine, start to be blocked the partial sweep in region at place, region, because the touch area of user, be blocked region in continuous movement, so need to be blocked on the basis in region first, expand the region of scanning area as partial sweep, be specially: controller calculates target scan areas according to the first the be blocked coordinate figure in region and value of self pre-value, this target scan areas is greater than first and is blocked region.
Transmitter order in the Y-direction of 408, controller control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked in the Y-direction in region;
Controller is after determining the target scan areas of partial sweep, transmitter order in the Y-direction of control objectives scanning area again sends infrared ray to receiver and scans, if scan the region that is blocked, then obtain the one-dimensional coordinate that this is blocked in the Y-direction in region, the region that this is blocked is referred to as the 3rd and is blocked region, and the one-dimensional coordinate in this Y-direction is referred to as the 3rd one-dimensional coordinate in Y-direction.
Transmitter order in the X-direction of 409, controller control objectives scanning area sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked in the X-direction in region;
Controller is completing the partial sweep in Y-direction, after obtaining the 3rd one-dimensional coordinate in Y-direction, carry out the partial sweep in X-direction again, transmitter order in the X-direction of control objectives scanning area sends infrared ray to receiver and scans, if scan the region that is blocked, then obtain the one-dimensional coordinate that this is blocked in the X-direction in region, this one-dimensional coordinate is referred to as the 3rd one-dimensional coordinate in X-direction.
410, controller calculates the 3rd three-dimensional being blocked region according to the 3rd one-dimensional coordinate in the 3rd one-dimensional coordinate in Y-direction and X-direction.
Controller, after the scanning completing target scan areas, calculates the 3rd coordinate being blocked region according to the get the 3rd the 3rd one-dimensional coordinate be blocked in the 3rd one-dimensional coordinate in the Y-direction in region and X-direction, this coordinate is referred to as three-dimensional.
It should be noted that, the mode of coordinates computed is identical with the account form in the embodiment shown in the embodiment shown in Fig. 2 or Fig. 3, repeats no more herein.
In the embodiment of the present invention, get the coordinate in the region that is blocked at whole scan after, enter partial sweep, expand according to the value preset and be blocked region to obtain target scan areas, target scan areas is scanned again from Y-direction, afterwards again from X-direction scanning target scan areas, thus obtain the 3rd region and the 3rd that is blocked and to be blocked the coordinate in region.Thus the scan efficiency of coordinate points is improve by partial sweep.
Be more than the description of the scan method of the infrared touch frame of the embodiment of the present invention, from modular functional entity angle, the infrared touch frame the embodiment of the present invention be described below.
Composition graphs 5, in the embodiment of the present invention, an a kind of embodiment of infrared touch frame 5 comprises:
Controller 501, the transmitter 502 in minor face Y-direction and receiver 503, the transmitter 504 in the X-direction of long limit and receiver 505.
Wherein, controller 501 sequentially sends infrared signal to the receiver 503 of correspondence for the transmitter 502 controlled in minor face Y-direction and scans, if do not scan the region that is blocked in the Y direction, transmitter 502 continuation then controlled in Y-direction sequentially sends infrared signal to the receiver 503 of correspondence and scans, if scan the region that is blocked in the Y direction, then obtain the first one-dimensional coordinate be blocked in the Y-direction in region, and transmitter 504 order controlled in the long limit X-direction of infrared touch frame sends infrared signal to the receiver 505 of correspondence scans, if scan the region that is blocked in the X direction, then controller obtains the first one-dimensional coordinate be blocked in the X-direction in region, first coordinate in the region that is blocked is calculated again according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction, wherein, the region that is blocked is first to be blocked region.
In the embodiment of the present invention, infrared touch frame is launched infrared signal by transmitter 502 order that controller 501 controls in Y-direction to receiver 503 and is scanned, if do not scan the region that is blocked in the Y direction, then continue scanning Y-direction, until scan when being blocked region in the Y direction, controller 501 transmitter 504 order controlled again in X-direction sends infrared signal to receiver 505 and scans, thus obtains the coordinate in the region that is blocked.Therefore, infrared touch frame does not have before touch point falls, not scan Y-direction again as the X-direction that first scans of the prior art, but only need to carry out whole scan to the Y-direction of infrared touch frame, thus shorten sweep time, improve and find the efficiency of touch point, reduce and lose stroke or the short probability of stroke.
Composition graphs 6, in the embodiment of the present invention, an a kind of embodiment of infrared touch frame 6 comprises:
Controller 601, the transmitter 602 in minor face Y-direction and receiver 603, the transmitter 604 in the X-direction of long limit and receiver 604.
Wherein, controller 601 comprises:
Control module 6011, sequentially send infrared signal to the receiver 603 of correspondence for the transmitter 602 controlled in minor face Y-direction to scan, when do not scan in the Y direction first be blocked region time, control the transmitter 602 continuation order in Y-direction and send infrared signal to the receiver 603 of correspondence and scan;
Acquiring unit 6012, for scan in the Y direction when control module 6,011 first be blocked region time, obtain first the first one-dimensional coordinate of being blocked in the Y-direction in region;
Control module 6011, the transmitter 604 also in the long limit X-direction controlling infrared touch frame sequentially sends infrared signal to the receiver 605 of correspondence and scans;
Acquiring unit 6012, also for scan in the X direction when control module 6,011 first be blocked region time, obtain first the first one-dimensional coordinate of being blocked in the X-direction in region;
Computing unit 6013, the first one-dimensional coordinate in the X-direction that the first one-dimensional coordinate in the Y-direction obtained according to acquiring unit 6012 and second acquisition unit obtain calculates the first the first coordinate being blocked region.
Below with a concrete application scenarios to being described alternately between each module of message server of the present invention:
Transmitter in controller 601, minor face Y-direction 602 and receiver 603 is comprised, the transmitter 604 in the X-direction of long limit and receiver 604 at infrared touch frame 6.In four limits of infrared touch frame 6, there is the width of an opposite side wider than the width of another opposite side, in the art, usually the direction at place, limit long for width is referred to as X-direction, the direction at place, limit short for width is referred to as Y-direction.
After infrared touch frame 6 powers on, first carry out the whole scan in the Y-direction on infrared touch frame 6, namely control module 6011 transmitter 602 order controlled in Y-direction sends infrared signal to the receiver 603 of correspondence and scans.
It should be noted that, the order of whole scan herein comprises: order is from No. 1 transmitter of in Y-direction, and then No. 2 transmitters, successively until the most end transmitter of Y-direction; Also can be from the most end transmitter of Y-direction, then second from the bottom transmitter, successively until the Y-direction No. 1 transmitter.
If in whole scan process in the Y direction, if the receiving tube of Y-direction 603 can receive the infrared signal that corresponding power valve 602 is launched, then illustrate and Y-direction does not scan the region that is blocked, now, continue the whole scan in Y-direction, control module 6011 transmitter 602 continuation controlled in the Y-direction of infrared frame sequentially sends infrared signal to the receiver 603 of correspondence and scans, and repeats the scanning process of the overall situation in Y-direction, until scan the region that is blocked in the Y direction.
If in the whole scan process of Y-direction, some receiver 603 in Y-direction does not receive the infrared signal sent from the transmitter of correspondence, then can determine that this region in Y-direction is the region that is blocked, now acquiring unit 6012 gets the position of these receiving tubes or power valve, thus obtain the coordinate be blocked in the Y-direction in region, this coordinate is referred to as the first one-dimensional coordinate in Y-direction, this region that is blocked is referred to as first and is blocked region.
It should be noted that, the first coordinate be blocked in the Y-direction in region that acquiring unit 6012 gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from Y
20=20 to Y
30=30, so the first one-dimensional coordinate in Y-direction is an one-dimensional coordinate interval.
After acquiring unit 6012 gets the first one-dimensional coordinate be blocked in the Y-direction in region scanned, controller 601 carries out the whole scan in the X-direction on infrared touch frame again, and namely control module 6011 transmitter 604 order controlled in the long limit X-direction of infrared touch frame 6 sends infrared signal to the receiver 605 of correspondence and scans.
It should be noted that, the whole scan order scanning in X-direction can comprise: order is from No. 1 transmitter of in X-direction, and then No. 2 transmitters, successively until the most end transmitter of X-direction; Also can be from the most end transmitter of X-direction, then second from the bottom transmitter, successively until the X-direction No. 1 transmitter.
If in the whole scan process of X-direction, some receiver 605 in X-direction does not receive the infrared signal sent from the transmitter 604 of correspondence, then acquiring unit 6012 can get the position of these receiving tubes or power valve, thus obtain the first coordinate be blocked in the X-direction in region, this coordinate is referred to as the first one-dimensional coordinate in X-direction.
It should be noted that, the first coordinate be blocked in the X-direction in region that acquiring unit 6012 gets is not a coordinate points usually, but the coordinate be made up of a lot of coordinate points is interval, such as: from X
3=3 to X
13=13, so the first one-dimensional coordinate in X-direction is an one-dimensional coordinate interval.
Acquiring unit 6012 is after getting the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction, and computing unit 6013 calculates the first the first coordinate being blocked region according to the first one-dimensional coordinate in Y-direction and the first one-dimensional coordinate in X-direction.
In the embodiment of the present invention, controller 601 comprises control module 6011, acquiring unit 6012 and computing unit 6013, transmitter 602 order controlled in Y-direction by control module 6011 is launched infrared signal to receiver 603 and is scanned, if do not scan the region that is blocked in the Y direction, then continue scanning Y-direction, until scan when being blocked region in the Y direction, controller 601 transmitter 604 order controlled again in X-direction sends infrared signal to receiver 605 and scans, when acquiring unit 6012 scans in the Y direction and is blocked region, obtain the first one-dimensional coordinate be blocked in the Y-direction in region, scan when being blocked region in the X direction, obtain the first one-dimensional coordinate be blocked in the X-direction in region, the first one-dimensional coordinate in the X-direction that the first one-dimensional coordinate in the Y-direction that computing unit 6013 obtains according to acquiring unit 6012 again and second acquisition unit obtain calculates the first the first coordinate being blocked region.Therefore, infrared touch frame does not have before touch point falls, only need to carry out whole scan to the Y-direction of infrared touch frame, thus shorten sweep time, improve the efficiency finding touch point, reduce and lose stroke or the short probability of stroke.
Optionally, as another embodiment, computing unit 6013 specifically for: calculate first according to the first one-dimensional coordinate in the first one-dimensional coordinate in Y-direction and X-direction and to be blocked the central point in region or the coordinate of focus point, the coordinate of this central point or focus point is the first coordinate.
Optionally, as another embodiment, to be blocked region when control module 6011 scans first in the Y direction, do not scan in the X direction first be blocked region time, control transmitter 602 in the Y-direction of infrared touch frame again order send infrared ray to the receiver 603 of correspondence and scan, to obtain the second the second one-dimensional coordinate be blocked in the Y-direction in region, afterwards, control module 6011 control transmitter 604 in the X-direction of infrared touch frame again order send infrared ray to the receiver 605 of correspondence and scan, to obtain the second the second one-dimensional coordinate be blocked in the X-direction in region, computing unit 6013 is also for calculating the second the second coordinate being blocked region according to the second one-dimensional coordinate in Y-direction and the second one-dimensional coordinate in X-direction.
Optionally, as another embodiment, controller 601 also comprises transmitting element (not shown), and the first coordinate for being calculated by computing unit 6013 is sent to the processor of computing machine.
Optionally, as another embodiment, computing unit 6013 is also for calculating target scan areas according to the first be blocked region and self preset value, and target scan areas is greater than first and is blocked region; The transmitter 602 of control module 6011 also in the Y-direction of control objectives scanning area sends infrared ray to receiver 503 and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked in the Y-direction in region, afterwards, transmitter 604 in the X-direction of control objectives scanning area sends infrared ray to receiver 605 and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked in the X-direction in region; Computing unit 6013 is also for the three-dimensional in the region that is blocked according to the 3rd one-dimensional coordinate calculating the 3rd in the 3rd one-dimensional coordinate in Y-direction and X-direction.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of infrared touch frame scan method in prior art;
Fig. 2 is a kind of process flow diagram of infrared touch frame scan method in the embodiment of the present invention;
Fig. 3 is the another kind of process flow diagram of infrared touch frame scan method in the embodiment of the present invention;
Fig. 4 is the another kind of process flow diagram of infrared touch frame scan method in the embodiment of the present invention;
Fig. 5 is a kind of high-level schematic functional block diagram of infrared touch frame in the embodiment of the present invention;
Fig. 6 is another high-level schematic functional block diagram of infrared touch frame in the embodiment of the present invention.
Embodiment
Embodiments providing method and the infrared touch frame of the scanning of a kind of infrared touch frame, for shortening sweep time, improving the efficiency finding touch point.Be described in detail respectively below.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Claims (10)
1. a method for infrared touch frame scanning, is characterized in that, comprising:
The controller transmitter controlled on the short side direction of infrared touch frame sequentially sends infrared signal to the receiver of correspondence and scans;
If do not scan the region that is blocked on described short side direction, then the transmitter continuation that described controller controls on described infrared touch frame short side direction sequentially scans to the receiver of correspondence transmission infrared signal;
If scan the region that is blocked on described short side direction, then described controller obtain described in the first one-dimensional coordinate of being blocked on the short side direction in region, described in the region that is blocked be first to be blocked region;
The described controller transmitter controlled on the long side direction of described infrared touch frame sequentially sends infrared signal to the receiver of correspondence and scans, if scan described first to be blocked region on described long side direction, then described controller obtains the described first the first one-dimensional coordinate be blocked on the long side direction in region;
Described controller calculates the described first the first coordinate being blocked region according to the first one-dimensional coordinate on described short side direction and the first one-dimensional coordinate on described long side direction.
2. the method for a kind of infrared touch frame scanning according to claim 1, it is characterized in that, described controller calculates described first the first coordinate being blocked region according to the first one-dimensional coordinate on described short side direction and the first one-dimensional coordinate on described long side direction and comprises:
Calculate described first according to the first one-dimensional coordinate on the first one-dimensional coordinate on described short side direction and described long side direction to be blocked the central point in region or the coordinate of focus point, the coordinate of described central point or focus point is described first coordinate.
3. the method for infrared touch frame scanning according to claim 1 and 2, it is characterized in that, described method also comprises:
If scan described first to be blocked region on described short side direction, described long side direction does not scan described first to be blocked region, the transmitter that then described controller controls on the short side direction of described infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the second the second one-dimensional coordinate be blocked on the short side direction in region again;
The transmitter that described controller controls on the long side direction of described infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence, to obtain the described second the second one-dimensional coordinate be blocked on the long side direction in region again;
Described controller calculates the described second the second coordinate being blocked region according to the second one-dimensional coordinate on described short side direction and the second one-dimensional coordinate on described long side direction.
4. the method for a kind of infrared touch frame scanning according to claim 1 and 2, it is characterized in that, also comprise after first coordinate in the region that is blocked described in described controller calculates according to the first one-dimensional coordinate on described short side direction and the first one-dimensional coordinate on described long side direction:
First coordinate described in first is sent to the processor of computing machine by described controller.
5. the method for a kind of infrared touch frame scanning according to claim 4, it is characterized in that, described controller also comprises after described first coordinate is sent to the processor of computing machine:
Described controller calculates target scan areas according to the described first be blocked region and self preset value, and described target scan areas is greater than described first and is blocked region;
The described controller transmitter order controlled on the short side direction of described target scan areas sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the short side direction in region;
The described controller transmitter order controlled on the long side direction of described target scan areas sends infrared ray to receiver and scans, to obtain the described 3rd the 3rd one-dimensional coordinate be blocked on the long side direction in region;
Described controller calculates the described 3rd three-dimensional being blocked region according to the 3rd one-dimensional coordinate on the 3rd one-dimensional coordinate on described short side direction and described long side direction.
6. an infrared touch frame, is characterized in that, comprising:
Controller, the transmitter on short side direction and receiver, the transmitter on long side direction and receiver;
Described controller comprises:
Control module, sequentially send infrared signal to the receiver of correspondence for the transmitter controlled on described short side direction to scan, when do not scan on described short side direction described first be blocked region time, control on described short side direction transmitter continuation order to correspondence receiver send infrared signal scan;
Acquiring unit, for scan on described short side direction when control module described first be blocked region time, obtain the described first the first one-dimensional coordinate be blocked on the short side direction in region;
Described control module, the transmitter order also on the long side direction controlling described infrared touch frame scans to the receiver transmission infrared signal of correspondence;
Described acquiring unit, also for scan on described long side direction when control module described first be blocked region time, obtain the described first the first one-dimensional coordinate be blocked on the long side direction in region;
Computing unit, the first one-dimensional coordinate on the described long side direction that the first one-dimensional coordinate on the described short side direction obtained according to described acquiring unit and described second acquisition unit obtain calculates the described first the first coordinate being blocked region.
7. a kind of infrared touch frame according to claim 6, is characterized in that, described computing unit specifically for:
Calculate described first according to the first one-dimensional coordinate on the first one-dimensional coordinate on described short side direction and described long side direction to be blocked the central point in region or the coordinate of focus point, the coordinate of described central point or focus point is described first coordinate.
8. a kind of infrared touch frame according to claim 6 or 7, is characterized in that, described control module also for:
To be blocked region when scanning described first on described short side direction, described long side direction does not scan described first be blocked region time, the transmitter controlled on the short side direction of described infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence again, to obtain the second the second one-dimensional coordinate be blocked on the short side direction in region, afterwards, the transmitter controlled on the long side direction of described infrared touch frame sequentially scans to the receiver transmission infrared ray of correspondence again, to obtain the described second the second one-dimensional coordinate be blocked on the long side direction in region,
Described computing unit, also for calculating the described second the second coordinate being blocked region according to the second one-dimensional coordinate on described short side direction and the second one-dimensional coordinate on described long side direction.
9. a kind of infrared touch frame according to claim 6 or 7, it is characterized in that, described controller also comprises:
Transmitting element, the first coordinate for being calculated by described computing unit is sent to the processor of computing machine.
10. a kind of infrared touch frame according to claim 9, is characterized in that:
Described computing unit, also for calculating target scan areas according to the described first be blocked region and self preset value, described target scan areas is greater than described first and is blocked region;
Described control module, transmitter also on the short side direction controlling described target scan areas sends infrared ray to receiver and scans, to obtain the 3rd the 3rd one-dimensional coordinate be blocked on the short side direction in region, afterwards, the transmitter controlled on the long side direction of described target scan areas sends infrared ray to receiver and scans, to obtain the described 3rd the 3rd one-dimensional coordinate be blocked on the long side direction in region;
Described computing unit, also for the three-dimensional in the region that is blocked according to the 3rd one-dimensional coordinate calculating the described 3rd on the 3rd one-dimensional coordinate on described short side direction and described long side direction.
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| CN104898900B (en) | 2018-05-01 |
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