CN104866138B - A kind of method and device detecting position of touch - Google Patents
A kind of method and device detecting position of touch Download PDFInfo
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- CN104866138B CN104866138B CN201510242609.4A CN201510242609A CN104866138B CN 104866138 B CN104866138 B CN 104866138B CN 201510242609 A CN201510242609 A CN 201510242609A CN 104866138 B CN104866138 B CN 104866138B
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Abstract
The invention discloses a kind of method and devices for detecting position of touch, through three sensors of detection at a distance from touch point, and according to the distance, the location information for obtaining the touch point reduces the quantity of the transmitting tube and reception pipe in the arrangement of screen surrounding, reduces the cost of touch screen, to reduce its complexity, and since the touch-control range can be set in the effective coverage that sensor determines, the changeability of touch screen shape is increased, user experience is increased.
Description
Technical field
The present invention relates to technical field of touch control, more specifically to a kind of method and device for detecting position of touch.
Background technique
Existing touch screen is usually the surrounding arrangement transmitting tube and reception pipe in screen, wherein transmitting tube and reception pipe one
One is corresponding, forms the transmitting linear array intersected anyhow.When user's finger point touching screen, can be blocked at touch point through
Vertical and horizontal two emission lines of the position are crossed, thus may determine that the position of touch point on the screen.However, by screen four
The transmitting tube and reception pipe of week arrangement, the method for realizing touch detection, there are the defects of at high cost, structure is complicated.
Therefore, how position of touch is detected, to reduce the cost of touch screen and reduce its complexity, becomes and need to solve
Certainly the problem of.
Summary of the invention
The purpose of the present invention is to provide it is a kind of detect position of touch method and device, with realize reduce touch screen at
This and reduce its complexity.
To achieve the above object, the embodiment of the invention provides following technical solutions:
A method of detection position of touch, comprising:
Preset the position of first sensor, second sensor and 3rd sensor；Wherein, the first sensor,
The second sensor and 3rd sensor is triangular in shape is distributed in same plane；
The first sensor, the second sensor and the 3rd sensor is detected respectively to believe at a distance from touch point
Breath；Wherein, the touch point is within the scope of preset touch-control；
Believed at a distance from the touch point according to the first sensor, the second sensor and the 3rd sensor
The location information of breath and each sensor, obtains the location information of the touch point.
Preferably, the first sensor, the second sensor and the 3rd sensor and the touching are detected respectively
Before the range information for controlling point, further includes:
The first sensor determines the first effective coverage；
The second sensor determines the second effective coverage；
The 3rd sensor determines third effective coverage；
The public domain for choosing first effective coverage, second effective coverage and the third effective coverage is to have
Imitate detection zone；
The touch-control range is set in effective detection zone.
Preferably, the touch-control range is set in effective detection zone, comprising:
Rectangular touch range is set in effective detection zone；Alternatively, setting circle in effective detection zone
Shape touch-control range.
Preferably, the first sensor, the second sensor and the 3rd sensor and the touching are detected respectively
Control the range information of point, comprising:
The first sensor, the second sensor and the 3rd sensor in turn touch point described in cycle detection with
The range information of the first sensor, the second sensor and the 3rd sensor.
A kind of device detecting position of touch, comprising:
First infrared sensor, for detecting the first distance information of first infrared sensor Yu the touch point；
Second infrared sensor, for detecting the second distance information of second infrared sensor Yu the touch point；
Third infrared sensor, for detecting the third range information of the third infrared sensor Yu the touch point；
Wherein, first infrared sensor, second infrared sensor and the third infrared sensor is triangular in shape is distributed in
Same plane；
Position information acquisition module, for according to first infrared sensor, second infrared sensor and described
Third infrared sensor and the range information of the touch point and the range information of each infrared sensor, obtain the touch-control
The location information of point.
Preferably, first infrared sensor is also used to determine the first effective coverage；Second infrared sensor,
It is also used to determine the second effective coverage；The third infrared sensor is also used to determine third effective coverage；
It further include effective coverage determining module and touch-control range determination module；
Wherein, the effective coverage determining module for choose first effective coverage, second effective coverage and
The public domain of the third effective coverage is effective detection zone；
The touch-control range determination module, for setting the touch-control range in effective detection zone.
Preferably, the touch-control range determination module is specifically used for:
Rectangular touch range is set in effective detection zone；Alternatively, setting circle in effective detection zone
Shape touch-control range.
Preferably, first infrared sensor, second infrared sensor and the third infrared sensor be in turn
Touch point described in cycle detection and first infrared sensor, second infrared sensor and the third infrared sensor
Range information.
By above scheme it is found that a kind of method and device for detecting position of touch provided in an embodiment of the present invention, passes through
Three sensors are detected at a distance from touch point, and according to the distance, the location information of the touch point is obtained, reduces
The transmitting tube of screen surrounding arrangement and the quantity of reception pipe, reduce the cost of touch screen, so that its complexity is reduced, and
Since the touch-control range can be set in the effective coverage that sensor determines, the changeability of touch screen shape is increased,
Increase user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of method flow diagram for detecting position of touch disclosed by the embodiments of the present invention；
Fig. 2 is a kind of sensor group position view disclosed by the embodiments of the present invention；
Fig. 3 is a kind of touch-control range schematic diagram disclosed by the embodiments of the present invention；
Fig. 4 is another touch-control range schematic diagram disclosed by the embodiments of the present invention；
Fig. 5 is a kind of sensor group coordinate position schematic diagram disclosed by the embodiments of the present invention；
Fig. 6 is a kind of schematic device for detecting position of touch disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a kind of method and devices for detecting position of touch, to realize the cost for reducing touch screen
And reduce its complexity.
Referring to Fig. 1, a kind of method detecting position of touch provided in an embodiment of the present invention, comprising:
S101, the position for presetting first sensor, second sensor and 3rd sensor；Wherein, it described first passes
Sensor, the second sensor and the 3rd sensor is triangular in shape is distributed in same plane；
Specifically, the present embodiment is the location information for detecting touch point by using three infrared receiving/transmission pipes.Wherein, originally
Invention does not limit the number of infrared receiving/transmission pipe, only can precisely detect touch-control using three infrared receiving/transmission pipes in the present embodiment
The location information of point, can also reduce the cost and its complexity of touch screen to the greatest extent, be preferred embodiment of the invention.
Referring to fig. 2, first sensor is the first infrared receiving/transmission pipe 101, and second sensor is the second infrared receiving/transmission pipe 102,
3rd sensor is third infrared receiving/transmission pipe 103, and the first infrared receiving/transmission pipe 101, the second infrared receiving/transmission pipe 102 and the
Three infrared receiving/transmission pipes 103 are the consistent infrared receiving/transmission pipe of three performances, and the angular range of transmitting receiving infrared-ray is ± α
Angle, maximum measurement distance is h2.
Wherein, the first infrared receiving/transmission pipe 101 and the second infrared receiving/transmission pipe 102 are located in same horizontal line, spacing 2d；The
One infrared receiving/transmission pipe 101, the second infrared receiving/transmission pipe 102 and third infrared receiving/transmission pipe 103 be triangularly arranged, and be arranged in
On same plane, and the height of the horizontal plane generally requires to be higher than the plane at least 5mm where touch area.
Third infrared receiving/transmission pipe 103 is located on 102 perpendicular bisector O ' N of the first infrared receiving/transmission pipe 101 and the second infrared receiving/transmission pipe,
And the horizontal space of the first infrared receiving/transmission of distance pipe 101 and the second infrared receiving/transmission pipe 102 is d, distance the first infrared receiving/transmission pipe
101 and second infrared receiving/transmission pipe 102 vertical range be h1；The h2 indicated in figure is the maximum measurement distance of infrared receiving/transmission pipe,
And h2 < 2d.As seen from the figure, the common effective transmitting of three infrared receiving/transmission pipes and receiving area ABCDEF, are effective detection zone.
S102, the first sensor, the second sensor and the 3rd sensor and touch point are detected respectively
Range information；Wherein, the touch point is within the scope of preset touch-control；
Specifically, the first infrared receiving/transmission pipe 101, the second infrared receiving/transmission pipe 102 and the infrared receipts of third that the present embodiment uses
Hair pipe 103 is that the digital integrated circuit component of one kind can be automatic after the infrared light of transmitting, which is reflected back, to be received
Calculate obstacle distance.
S103, according to the first sensor, the second sensor and the 3rd sensor and the touch point
The location information of range information and each sensor obtains the location information of the touch point.
Specifically, if O is the central point of the first infrared receiving/transmission pipe 101, M is the second infrared receiving/transmission pipe 102 referring to Fig. 6
Central point, N are the central point of third infrared receiving/transmission pipe 103, and O ' is the central point of OM, and O ' N is the perpendicular bisector of OM.Six side ABCDEF
Shape region is touch-control range.Wherein, coordinate system OXY in figure is using the central point O of the first infrared receiving/transmission pipe 101 as origin, by OM
Direction is set as X-coordinate system, will be parallel to the direction O ' N and is set as Y-coordinate system.
Touch point P is respectively OP, MP and NP at a distance from infrared receiving/transmission pipe 101,102 and 103, and due to the first infrared receipts
The position of hair pipe 101, the second infrared receiving/transmission pipe 102 and third infrared receiving/transmission pipe 103 is known to fixation, so side length
OM, MN, NO and ∠ OMN are known terms.
Since 102 two infrared receiving/transmission pipes of the first infrared receiving/transmission pipe 101 and the second infrared receiving/transmission pipe just can determine that touch point
Location information, but in the GHDEF of polygon and polygon GHCBA, using OM as the two o'clock of symmetry axis and the first infrared receipts
Send out pipe 101 it is identical with the distance of the second infrared receiving/transmission pipe 102, so, determined by third infrared receiving/transmission pipe touch point be
In in the region GHDEF of the polygon or region polygon GHCBA.
The specific method for determining touch-control dot position information is as follows:
In Δ MNP triangle, the result that ∠ NMP is calculated according to remaining profound theorem is following formula (1):
Refering to what is shown in Fig. 5, can obviously be inferred to, if calculated ∠ NMP < ∠ NMO, true touch point is position
In the P point in the GHDEF of polygon；On the contrary, true touch point is the GHCBA positioned at polygon if ∠ NMP > ∠ NMO
Interior P ' point.
The coordinate (PX, PY) it is found that P point is simply derived according to trigonometric function are as follows:
PX=OP*sin ∠ YOP；------------------------------(2)
PY=OP*cos ∠ YOP；--------------------------(3)
In Δ OMP, calculating ∠ MOP result according to remaining profound theorem is (4):
It is located in the GHDEF of polygon due to P point, so
Formula (4) and formula (5), which are substituted into formula (2) and formula (3), can be calculated shown in P point coordinate such as following formula (6):
Wherein, when touch point is the P ' point in the GHCBA of polygon, the location information for calculating touch point P ' point is as above
Method is stated, is repeated no more secondary.
Specifically, the coordinate system of above-mentioned selection is to calculate relatively simple coordinate system；Specifically during realization, Ke Yiren
Meaning setting coordinate system, and according to mathematical formulae, calculate coordinate of the P point in other any coordinate systems.
Preferably, the first sensor, the second sensor and the 3rd sensor and the touching are detected respectively
Before the range information for controlling point, further includes:
The first sensor determines the first effective coverage；
The second sensor determines the second effective coverage；
The 3rd sensor determines third effective coverage；
The public domain for choosing first effective coverage, second effective coverage and the third effective coverage is to have
Imitate detection zone；
The touch-control range is set in effective detection zone.
Preferably, the touch-control range is set in effective detection zone, comprising:
Rectangular touch range is set in effective detection zone；Alternatively, setting circle in effective detection zone
Shape touch-control range.
Specifically, can according to need in effective detection zone to set touch-control range, also it is equivalent in advance
Set the shape of touch screen.It is the touch-control range that is set in effective detection zone as rectangle referring to Fig. 3；Referring to fig. 4,
It is the touch-control range that is set in effective detection zone as circle.
A kind of method detecting position of touch provided in an embodiment of the present invention, passes through three sensors of detection and touch point
Distance, and according to the distance, obtains the location information of the touch point, reduce the arrangement of screen surrounding transmitting tube and connect
The quantity of closed tube, reduces the cost of touch screen, to reduce its complexity, and since the touch-control range can sense
It is set in the effective coverage that device determines, increases the changeability of touch screen shape, increase user experience.
Preferably, in another embodiment of the invention, detect respectively the first sensor, the second sensor and
The range information of the 3rd sensor and the touch point, comprising:
The first sensor, the second sensor and the 3rd sensor in turn touch point described in cycle detection with
The range information of the first sensor, the second sensor and the 3rd sensor.
Specifically, being infrared by the first infrared receiving/transmission pipe 101, the second infrared receiving/transmission pipe 102 and third in the present embodiment
The distance of the cycle detection barrier in turn of T-R tube 103.Because receiving and dispatching simultaneously, the first infrared tube T-R tube 101 and second is infrared
Interference can be formed mutually between T-R tube 102 to work as.It wherein, is to perceive not for user since the speed received and dispatched in turn is very fast
Out.
Referring to Fig. 6, a kind of device detecting position of touch provided in an embodiment of the present invention, comprising:
First infrared sensor 101, for detecting the first distance of first infrared sensor 101 and the touch point
Information；
Second infrared sensor 102, for detecting the second distance of second infrared sensor 102 and the touch point
Information；
Third infrared sensor 103, for detecting the third distance of the third infrared sensor 103 and the touch point
Information；Wherein, first infrared sensor 101, second infrared sensor 102 and the third infrared sensor 103
It is triangular in shape to be distributed in same plane；
Position information acquisition module 104, for according to first infrared sensor 101, second infrared sensor
102 and the third infrared sensor 103 and the range information of the touch point and the range information of each infrared sensor,
Obtain the location information of the touch point.
A kind of method detecting position of touch provided in an embodiment of the present invention, passes through three sensors of detection and touch point
Distance, and according to the distance, obtains the location information of the touch point, reduce the arrangement of screen surrounding transmitting tube and connect
The quantity of closed tube, reduces the cost of touch screen, to reduce its complexity, and since the touch-control range can sense
It is set in the effective coverage that device determines, increases the changeability of touch screen shape, increase user experience.
Preferably, in another embodiment of the invention, first infrared sensor 101 is also used to determine that first has
Imitate region；Second infrared sensor 102 is also used to determine the second effective coverage；The third infrared sensor 103, also
For determining third effective coverage；
It further include effective coverage determining module and touch-control range determination module；
Wherein, the effective coverage determining module for choose first effective coverage, second effective coverage and
The public domain of the third effective coverage is effective detection zone；
The touch-control range determination module, for setting the touch-control range in effective detection zone.
Preferably, in another embodiment of the invention, the touch-control range determination module is specifically used for:
Rectangular touch range is set in effective detection zone；Alternatively, setting circle in effective detection zone
Shape touch-control range.
Specifically, when the first infrared receiving/transmission pipe 101 of installation, the second infrared receiving/transmission pipe 102 and third infrared receiving/transmission pipe 103
Afterwards, the region that effective coverage determining module is determined according to three infrared receiving/transmission pipes, selection public domain are effective detection zone, and
Arbitrary graphic can be set in effective detection zone as touch-control range, corresponding touch-control range of choosing also is assured that
The shape of touch screen, specific implementation are detailed in above method embodiment, and details are not described herein.
Specifically, how sensor group detects touch point range information, and how according to range information calculating
The location information of touch point is as described in embodiment of the method, and details are not described herein.
Preferably, in another embodiment of the invention, first infrared sensor, second infrared sensor and
Third infrared sensor touch point and first infrared sensor, second infrared sensing described in cycle detection in turn
The range information of device and the third infrared sensor.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (2)
1. a kind of method for detecting position of touch characterized by comprising
Preset the position of first sensor, second sensor and 3rd sensor；Wherein, the first sensor, described
The second sensor and 3rd sensor is triangular in shape is distributed in same plane；
The range information of the first sensor, the second sensor and the 3rd sensor and touch point is detected respectively；
Wherein, the touch point is within the scope of preset touch-control；
According to the first sensor, the range information of the second sensor and the 3rd sensor and the touch point,
And the location information of each sensor, obtain the location information of the touch point；
Wherein, the first sensor, the second sensor and the 3rd sensor and the touch point are detected respectively
Range information, comprising:
The first sensor, the second sensor and the 3rd sensor in turn touch point described in cycle detection with it is described
The range information of first sensor, the second sensor and the 3rd sensor；
The first sensor is the first infrared receiving/transmission pipe, and the second sensor is the second infrared receiving/transmission pipe, and the third passes
Sensor is third infrared receiving/transmission pipe；
Wherein, the first sensor, the second sensor and the 3rd sensor and the touch point are detected respectively
Before range information, further includes:
The first sensor determines the first effective coverage；
The second sensor determines the second effective coverage；
The 3rd sensor determines third effective coverage；
The public domain for choosing first effective coverage, second effective coverage and the third effective coverage is effectively inspection
Survey region；
The touch-control range is set in effective detection zone；
Wherein, the touch-control range is set in effective detection zone, comprising:
Rectangular touch range is set in effective detection zone；Alternatively, setting round touching in effective detection zone
Control range.
2. a kind of device for detecting position of touch characterized by comprising
First infrared sensor, for detecting the first distance information of first infrared sensor and touch point；
Second infrared sensor, for detecting the second distance information of second infrared sensor Yu the touch point；
Third infrared sensor, for detecting the third range information of the third infrared sensor Yu the touch point；Wherein,
First infrared sensor, second infrared sensor and the third infrared sensor it is triangular in shape be distributed in it is same flat
Face；
Position information acquisition module, for according to first infrared sensor, second infrared sensor and the third
Infrared sensor and the range information of the touch point and the range information of each infrared sensor, obtain the touch point
Location information；
Wherein, first infrared sensor, second infrared sensor and the third infrared sensor recycle inspection in turn
The touch point is surveyed at a distance from first infrared sensor, second infrared sensor and the third infrared sensor
Information；First infrared sensor is the first infrared receiving/transmission pipe, and second infrared sensor is the second infrared receiving/transmission pipe, institute
Stating third infrared sensor is third infrared receiving/transmission pipe；
First infrared sensor is also used to determine the first effective coverage；
Second infrared sensor is also used to determine the second effective coverage；
The third infrared sensor is also used to determine third effective coverage；
It further include effective coverage determining module and touch-control range determination module；
Wherein, the effective coverage determining module is for choosing first effective coverage, second effective coverage and described
The public domain of third effective coverage is effective detection zone；
The touch-control range determination module, for setting the touch-control range in effective detection zone；
The touch-control range determination module is specifically used for:
Rectangular touch range is set in effective detection zone；Alternatively, setting round touching in effective detection zone
Control range.
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| CN105361370A (en) * | 2015-12-07 | 2016-03-02 | 上海科世达-华阳汽车电器有限公司 | Intelligent bracelet |
| CN105528033B (en) * | 2015-12-29 | 2019-02-05 | Oppo广东移动通信有限公司 | Terminal and its location recognition method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102915161A (en) * | 2012-10-31 | 2013-02-06 | Tcl通力电子（惠州）有限公司 | Infrared touch device and identification method thereof |
| CN104375717A (en) * | 2014-07-17 | 2015-02-25 | 深圳市钛客科技有限公司 | Portable device, touch control system and touch device |
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| KR101352264B1 (en) * | 2008-12-18 | 2014-01-17 | 엘지디스플레이 주식회사 | Apparatus and method for sensing muliti-touch |
| JP5191453B2 (en) * | 2009-06-29 | 2013-05-08 | 株式会社ジャパンディスプレイウェスト | Touch sensor, display device, and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915161A (en) * | 2012-10-31 | 2013-02-06 | Tcl通力电子（惠州）有限公司 | Infrared touch device and identification method thereof |
| CN104375717A (en) * | 2014-07-17 | 2015-02-25 | 深圳市钛客科技有限公司 | Portable device, touch control system and touch device |
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