CN106802744B - The method and device that touch area is positioned when touch control operation occurs for infrared touch panel - Google Patents
The method and device that touch area is positioned when touch control operation occurs for infrared touch panel Download PDFInfo
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- CN106802744B CN106802744B CN201710001194.0A CN201710001194A CN106802744B CN 106802744 B CN106802744 B CN 106802744B CN 201710001194 A CN201710001194 A CN 201710001194A CN 106802744 B CN106802744 B CN 106802744B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0428—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by sensing at the edges of the touch surface the interruption of optical paths, e.g. an illumination plane, parallel to the touch surface which may be virtual
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- Position Input By Displaying (AREA)
Abstract
The present invention provides a kind of to occur method, apparatus and infrared terminal equipment that touch area is positioned when touch operation on infrared touch panel, is related to infrared technical field of touch control.The described method includes: when there are the optical paths that is blocked, and the previous item of the optical path that is blocked and latter optical path be not when being blocked, two optical paths in optical path and its previous item and latter optical path are blocked with this to originate and terminating boundary alignment touch area, wherein, the touch area is to indicate and be used to indicate the region that touch operation is fallen on Current Scan direction with optical path location parameter, and touch operation position occurs for determining according to the intersection area of the touch areas multiple on multiple scanning directions.The present invention can implement touch control operation to infrared touch panel, and when the touch control operation only blocks single discontinuous optical path, can also position and export touch area, and then with the position of touch area positioning touch control operation.
Description
Technical field
The present invention relates to infrared technical field of touch control, in particular to positioning touching when touch control operation occurs for a kind of infrared touch panel
The method and apparatus for touching region.
Background technique
In the related art, the infrared lamp of dense arrangement is installed on the long margin frame and short frame of infrared touch panel, it is infrared
Transmitting fluorescent tube and reception fluorescent tube in fluorescent tube are located at opposite frame and one-to-one correspondence.Execute a scanning direction, transmitting fluorescent tube hair
The infrared signal penetrated is corresponded to or neighbouring reception fluorescent tube receives, and scanning forms one group of equidistant and intensive parallel light path, when
When touch control operation occurring on infrared touch panel, the continuous a plurality of light in one group of parallel light path is blocked in the touch point that touch control operation generates
Road is blocked optical path with first and the last item to originate and terminating boundary and determine a touch area.
As shown in Figure 1, the transmitting fluorescent tube number sequentially installed on transmitting long side and transmitting short side is respectively No. 1-19 and 1-
It No. 12, is corresponded with the reception fluorescent tube for receiving identical number on long side and reception short side, and preset adjacent infrared lamp
Distance values are L1(usually less than 6.4mm).
Implement single-point touch on infrared touch panel and operate T1, touch operation T1 has continuously blocked on long margin frame the just side of sweeping
To 3 parallel light paths, the respectively determining optical path of 6-8 infrared lamp scanning, wherein what No. 6 and No. 8 infrared lamps scanned
Optical path that optical path is respectively first and the last item is blocked, is blocked optical path as beginning boundary using this first and the last item
With termination boundary, a touch area is positioned.
However, when touch operation is smaller or scanning optical path is sparse, be easy to block an optical path and with phase before and after the optical path
Two adjacent parallel light paths are not blocked, due to there is no continuous two parallel light paths to be blocked by the optical path that is blocked,
So can not be using two parallel light paths being continuously blocked as one touch area of boundary alignment.
Summary of the invention
The present invention provide it is a kind of on infrared touch panel occur touch operation when position quasi- touch point method, apparatus and
Infrared terminal equipment can implement touch control operation to infrared touch panel, and touch control operation generation is only blocked single and do not connected
When continuous optical path, it can also position and export touch area to position touch operation position.
In order to achieve the above objectives, technical solution used by the embodiment of the present invention is:
In a first aspect, the present invention provides a kind of side for occurring to position touch area when touch operation on infrared touch panel
Method, the touch area are to indicate and be used to indicate the area that touch operation is fallen on Current Scan direction with optical path location parameter
For determining according to the intersection area of the touch areas multiple on multiple scanning directions touch operation position occurs for domain, special
Sign is that this method step includes:
When there is the optical path that is blocked, and previous optical path of the optical path that is blocked and latter optical path are not blocked
When, any two optical paths in optical path and its previous item and latter optical path are blocked with this to originate and terminating boundary alignment touching
Touch region.
Second aspect, the present invention provide a kind of dress for occurring to position touch area when touch operation on infrared touch panel
It sets, including with lower unit:
Touch area positioning unit, for when there is the optical path that is blocked, and previous optical path of the optical path that is blocked and
When latter optical path is not blocked, it is with any two optical paths in optical path and its previous item and latter optical path that are blocked
Starting and termination boundary alignment touch area.
The third aspect provides a kind of infrared touch control terminal equipment, comprising: infrared touch panel, memory, processor and storage
On the memory and the computer program that can run on the processor, which is characterized in that on the processor executes
First aspect the method step is realized when stating program.
A kind of method, apparatus for occurring to position touch area when touch operation on infrared touch panel provided by the invention
With infrared terminal equipment, when there is the optical path that is blocked, and previous optical path of the optical path that is blocked and latter optical path are not
When being blocked, two optical paths in optical path and its previous item and latter optical path are blocked with this to originate and terminating boundary alignment
Touch area.
Compared with prior art, the beneficial effect that the present invention obtains includes:
When touch control operation occurs on infrared touch panel, since touch control operation is smaller or scanning optical path is sparse, it is easy to cause
The only optical path that is blocked, and previous optical path of the optical path that is blocked and latter optical path are not blocked, at this point, still
Two optical paths in the optical path that can be blocked with this and its previous item and latter optical path are to originate and terminate boundary, realize positioning
One touch area, and then with the position of the intersection area of multiple touch areas positioning touch operation.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
Illustrate the present invention or technical solution in the prior art in order to clearer, it below will be to embodiment or existing
Attached drawing needed in technical description is briefly described, it is therefore apparent that the accompanying drawings in the following description is only the present invention
Some possible embodiments, for those of ordinary skill in the art, under the premise of not making the creative labor achievement, also
Other attached drawings can be obtained according to the following drawings.
Fig. 1 is infrared touch control terminal device structure and a touch area schematic diagram in the prior art.
Fig. 2 is a kind of method for occurring to position touch area when touch operation on infrared touch panel provided by the invention
Step schematic diagram.
Fig. 3 is the intersection area schematic diagram after two touch areas and intersection.
Fig. 4 is executed on long margin frame when being single-point touch and is just being swept the schematic diagram that direction determines the optical path that is blocked.
Fig. 4 a is the signal of optical path and its previous item and the corresponding infrared signal intensity of latter optical path of being blocked in Fig. 4
Figure.
It is executed on short frame when Fig. 5 is single-point touch and tiltedly sweeps the schematic diagram that direction determines the optical path that is blocked.
Fig. 5 a is the signal of optical path and its previous item and the corresponding infrared signal intensity of latter optical path of being blocked in Fig. 5
Figure.
The schematic diagram for determining 4 optical paths that are blocked is scanned when Fig. 6 is two o'clock touch-control.
Fig. 6 a is the schematic diagram that touch area a3 and a4 are positioned in Fig. 6.
Fig. 6 b is the schematic diagram that touch area a5 is positioned in Fig. 6.
Fig. 7 is provided by Embodiment 2 of the present invention a kind of for positioning Petting Area when generation touch operation on infrared touch panel
The schematic device in domain.
Fig. 7 a is the specific cell schematics that touch area device is positioned in Fig. 7.
Fig. 8 is a kind of schematic diagram for infrared touch panel terminal device that the embodiment of the present invention three provides.
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 the described embodiments are merely a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment that the present invention enumerates, those of ordinary skill in the art are obtained under the premise of not making creative work achievement
Every other embodiment, shall fall within the protection scope of the present invention.
The embodiment of the present invention one provides a kind of side for occurring to position touch area when touch operation on infrared touch panel
Method, as shown in Fig. 2, this method step 21 include: when there is the optical path that is blocked, and previous optical path of the optical path that is blocked and
When latter optical path is not blocked, it is with any two optical paths in optical path and its previous item and latter optical path that are blocked
Starting and termination boundary alignment touch area.
Wherein, touch area is that touch operation is indicated and be used to indicate with optical path location parameter to fall on Current Scan direction
Region, for according to the intersection area of the touch areas multiple on multiple scanning directions determine occur touch operation position.
It is exemplary, in a scan period, executes two scanning direction scannings and determine a plurality of optical path, as shown in figure 3, single
Touch operation T2 does not block optical path 31 and optical path 32, respectively indicates rising for touch area a1 with the location information of two optical paths
Begin and terminate boundary, so that touch operation T2 is fallen in the a1 of touch area, it may be assumed that the edge touch operation T2 is without departing from 31 He of optical path
Region between optical path 32, the position of the intersection area B positioning touch operation T2 after being intersected by touch area a1 with touch area a2
It sets.
Specifically, it within a scan period, executes the scanning of Current Scan direction and determines a plurality of optical path, each optical path difference
A corresponding reception fluorescent tube, when the discontinuous optical path of single is only blocked in the touch operation occurred on infrared touch panel, with this
The optical path that is blocked and its previous item and the corresponding reception fluorescent tube one end infrared signal of latter optical path are in decaying shape
State receives the intensity reduction that fluorescent tube receives infrared signal, and infrared signal intensity is smaller, indicates the corresponding light of infrared signal intensity
Closer to touch operation, the optical path is smaller at a distance from touch operation on road.
In above-mentioned three optical paths, the corresponding infrared signal intensity of the optical path that is blocked is minimum, indicates the optical path process that is blocked
Touch operation, and previous item and latter optical path are without touch operation.
When previous item and the equal corresponding infrared signal intensity of latter optical path, infrared signal strength difference is determined
Equal to zero, indicate to be equidistant with touch operation in two optical paths.
When previous item and the unequal corresponding infrared signal intensity of latter optical path, with larger infrared signal intensity
It subtracts smaller infrared signal intensity and determines an infrared signal strength difference greater than zero, indicate that smaller infrared signal intensity is corresponding
An optical path close to touch operation.
Wherein, if compared with latter optical path, the corresponding infrared signal intensity of previous optical path is larger, indicates latter item light
Road is close to touch operation；If the corresponding infrared signal intensity of previous optical path is smaller compared with latter optical path, previous item is indicated
Optical path is close to touch operation.
Example one since deviation occurs in the installation process of individual infrared lamps, causes lamp spacing to become in some cases
Greatly, as shown in figure 4, the infrared lamp distance values of intermediate region are larger, distance values 2L1, the infrared lamp spacing of corner areas
For L1, on long margin frame in the infrared lamp of number consecutively 1-12, the distance values of No. 1-3 and 10-12 infrared lamp are L1, 3-
The distance values of No. 10 infrared lamps are 2L1, transmitting fluorescent tube in infrared lamp and receive fluorescent tube and still correspond.
In one scan period, executed on long margin frame just sweep direction when, 5-7 infrared lamp successively scan determine optical path
41 and its previous optical path 42 and latter optical path 43, single-point touch operation T3 has only blocked optical path 41, adjacent with optical path 41
Previous optical path 43 and latter optical path 42 are not blocked.
Correspondingly, reception fluorescent tube one end infrared signal in 5-7 infrared lamp has different degrees of decaying, such as Fig. 4 a
Shown, each receive meets DBm42=DBm43 < DBm41 between the received infrared signal intensity of fluorescent tube, can therefrom learn infrared letter
Number intensity DBm41 is minimum, and the expression optical path 41 that is blocked passes through touch operation T3, that is, be blocked optical path 41 and touch operation T3
Distance be zero.
Due to infrared signal intensity DBm42=DBm43, determines that infrared signal strength difference is equal to 0, indicate touch operation T3
Without any one optical path in optical path 42 and optical path 43, i.e. two optical paths and touch operation T3 is equidistant and is greater than
Zero.
Example two, as shown in figure 5, on short frame in the infrared lamp of number consecutively 1-9, the 1-4 in corner areas
Number and 7-9 infrared lamp distance values be L1, the distance values of the 4-7 infrared lamp in central area are 2L1, infrared lamp
Emit fluorescent tube in pipe and receive fluorescent tube and still corresponds.
When tiltedly sweeping direction for execution one, the infrared signals of No. 7 transmitting fluorescent tubes transmittings are received by No. 5 reception fluorescent tubes, are scanned
Determine that 51, No. 6 transmitting fluorescent tubes of optical path and 4 receive determining 52, No. 8 transmitting fluorescent tubes of latter optical path of fluorescent tube scanning and No. 6 reception lamps
Pipe, which scans, determines previous optical path 53, and single-point touch operation T4 has blocked optical path 51, and previous optical path 53 and latter optical path
52 are not blocked.
Correspondingly, as shown in Figure 5 a, No. 5, No. 4 and No. 6 reception fluorescent tube one end, received infrared signal intensity is followed successively by
DBm51, DBm52, DBm53, and DBm51 < DBm52 < DBm53 can therefrom learn that infrared signal intensity DBm51 is minimum, table
Show that the optical path 51 that is blocked passes through touch operation T4, that is, the optical path 51 that is blocked is zero at a distance from touch operation T4, is determined red
External signal strength difference DBm53-DBm52 > 0 indicates the previous item 53 that is corresponding in turn to of DBm53, DBm52 and latter optical path 52 all
Without touch operation T4, and latter optical path 52 is close to touch area T4.
It should be noted that the corresponding scanning direction of the scanning angle of one group of parallel light path, when scanning angle is 90 degree
Correspondence just sweeps direction, and otherwise correspondence tiltedly sweeps direction, tiltedly sweeps on direction at one, the unequal light of scanning angle with parallel light path
Road, for the correction optical path on the scanning direction.
Exemplary, by taking Fig. 5 as an example, optical path 51 and optical path 52 are one group of parallel light path, the scan angle of this group of parallel light path
Spend one executed on corresponding short frame and tiltedly sweep direction, tiltedly sweep on direction at this, the corresponding scanning angle of other optical paths with this
Group parallel light path is unequal, therefore other optical paths are correction optical paths, wherein optical path 52 is compared, the scanning angle of optical path 53 is larger,
A correction optical path on direction is tiltedly swept for this.
According to the size of infrared signal strength difference and threshold value, determine whether with the optical path that is blocked for a boundary, the side
Boundary can be used for positioning touch area, wherein threshold value be indicated using two infrared signal intensity as parameter, and be used to indicate this two
The corresponding optical path of a infrared signal intensity is at a distance from touch operation.
When infrared signal strength difference is greater than threshold value, with the corresponding optical path of smaller infrared signal intensity and the optical path that is blocked
To originate and terminating boundary alignment touch area；When infrared signal strength difference is not more than threshold value, with previous item and latter item
Optical path is to originate and terminate boundary alignment touch area.
The position for positioning previous item and latter optical path is that transmitting fluorescent tube corresponding to the optical path that is blocked and reception fluorescent tube are compiled
Number subtract 1 respectively or add 1, previous optical path position is positioned to number the transmitting fluorescent tube respectively plus after 1 and receive fluorescent tube, with number point
Transmitting fluorescent tube and reception fluorescent tube after not subtracting 1 position latter optical path position,.
Example one in a scan period, is executed just sweeping direction and executing one on short frame on long margin frame and tiltedly be swept
Direction, as shown in fig. 6, when two o'clock touch control operation T5 and T6 occurring on infrared touch panel, the touch control operation T5 positioned at central area
Block that No. 6 infrared lamps are just sweeping the optical path 61 in direction and No. 7 transmitting fluorescent tubes to No. 5 reception fluorescent tubes tiltedly sweep determining optical path
64；The optical path 62 and No. 3 transmitting fluorescent tubes that No. 11 infrared lamps are just sweeping direction have been blocked positioned at the touch control operation T6 of corner areas
Determining optical path 63 is tiltedly swept to No. 1 reception fluorescent tube；The previous item and latter optical path adjacent with the optical path 61,62,63,64 that is blocked
It is not blocked.
As shown in Figure 6 a, on long margin frame, the transmitting fluorescent tube in No. 6 infrared lamps is subtracted 1 respectively with fluorescent tube number is received,
Positioning No. 5 infrared lamps is latter 611 position of optical path of optical path 61 of being blocked；To in No. 6 infrared lamps transmitting fluorescent tube and
Receive fluorescent tube number respectively plus 1, positioning No. 7 infrared lamps is previous 612 position of optical path of optical path 61 of being blocked.
Wherein, No. 5 and No. 7 received infrared signal strength differences of reception fluorescent tube are less than threshold value, at this time with latter optical path
611 and previous optical path 612 be to originate and terminate boundary alignment touch area a3.
On short frame, 64 corresponding No. 7 transmitting fluorescent tubes of the optical path that will be blocked and No. 5 reception fluorescent tube numbers subtract 1 respectively, fixed
No. 6 transmitting fluorescent tubes in position and No. 4 reception fluorescent tubes are latter 641 position of optical path；No. 7 transmitting fluorescent tubes and No. 5 reception fluorescent tube numbers point
Not plus 1, positioning No. 8 transmitting fluorescent tubes and No. 6 reception fluorescent tubes is previous 642 position of optical path.
Wherein, No. 6 and No. 4 received infrared signal strength differences of reception fluorescent tube are greater than threshold value, and No. 4 reception fluorescent tubes connect
The infrared signal intensity of receipts is smaller, and touch operation T5 is close to latter optical path 641, at this time with optical path 64 and the latter item light of being blocked
Road 641 is to originate and terminate boundary alignment touch area a4.
It should be pointed out that tiltedly sweeping direction when executing, and this is tiltedly swept the corresponding reception fluorescent tube of the optical path that is blocked on direction and compiles
Number for most be worth when, keep receive fluorescent tube number it is constant, while by the number for emitting fluorescent tube subtract 1 or/and add 1, with the reception lamp
It manages and numbers transmitting fluorescent tube adjusted and position latter item or/and previous optical path position, when emitting fluorescent tube is most to be worth, positioning
The mode of latter item or/and previous optical path is identical, and details are not described herein again.
Exemplary, as shown in Figure 6 b, touch control operation T6 has blocked optical path 63, in 63 corresponding No. 3 transmitting fluorescent tubes of optical path
In No. 1 reception fluorescent tube, the number of No. 1 reception fluorescent tube is the minimum value in all reception fluorescent tubes, at this point, to No. 3 transmitting fluorescent tubes
Number subtract 1 after No. 2 transmitting fluorescent tubes of positioning positions, and emit fluorescent tubes and No. 1 with No. 2 and receive the latter of fluorescent tube positioning optical path 63
Optical path 631.
The number for emitting fluorescent tube and No. 1 reception fluorescent tube to No. 3 adds 1 respectively, emits fluorescent tube with No. 4 and No. 2 receive fluorescent tube
Position positions previous 632 position of optical path, is at this time to originate and terminate boundary with latter optical path 631 and previous optical path 632,
Position touch area a5.
Optionally, previous item and the corresponding infrared signal strength difference of latter optical path are determined as the first difference, in turn
The second difference is determined according to smaller infrared signal intensity infrared signal intensity corresponding with the optical path that is blocked；When the second difference is less than
When the first difference or threshold value, boundary for starting and is terminated with the corresponding optical path of smaller infrared signal intensity and the optical path that is blocked
Position touch area；When the second difference is not less than the first difference or threshold value, with the corresponding optical path of smaller infrared signal intensity and
It is described to be blocked optical path to originate and terminating boundary alignment touch area.
Compared with prior art, when using the offer of the embodiment of the present invention one for touch operation to occur on infrared touch panel
Position touch area method, can or scanning optical path smaller in touch operation it is sparse, be easy to cause only a monochromatic light road hidden
When gear, positioning touch area also may be implemented, and then the position of touch operation can be positioned according to the intersection area of multiple touch areas
It sets.
Embodiment two
The side being used for for occurring to position touch area when touch operation on infrared touch panel provided according to embodiment one
Method, the embodiment of the present invention two also correspondingly provide a kind of device for positioning touch area, are described in detail as follows.
As shown in fig. 7, a kind of device for occurring to position touch area when touch operation on infrared touch panel, including touching
Zone location unit 71 is touched, has the optical path that is blocked, and previous optical path of the optical path that is blocked and latter item light for working as
When Lu Junwei is blocked, two optical paths in optical path and its previous item and latter optical path are blocked with this to originate and terminating side
Define a touch area.
Wherein, touch area is that touch operation is indicated and be used to indicate with optical path location parameter to fall on Current Scan direction
Region, for according to the intersection area of the touch areas multiple on multiple scanning directions determine occur touch operation position.
As shown in Figure 7a, touch area positioning unit 71 specifically includes the positioning of infrared signal strength determining unit 711, first
Unit 712 and the second positioning unit 713:
Difference value determining unit 711, for determining previous item and the corresponding infrared signal strength difference of latter optical path.
First positioning unit 712 is used for when infrared signal strength difference is greater than threshold value, with smaller infrared signal intensity pair
The optical path answered and the optical path that is blocked for starting and terminate boundary alignment touch area.
Second positioning unit 713 is used for when infrared signal strength difference is not more than threshold value, with previous item and latter item light
Road is to originate and terminate boundary alignment touch area.
Optionally, difference value determining unit 711, for strong according to the previous item and the corresponding infrared signal of latter optical path
It spends and determines that the first difference, and smaller infrared signal intensity and the corresponding infrared signal intensity of the optical path that is blocked determine second
Difference.
First positioning unit 712 is used for when the first difference is greater than the second difference, corresponding with smaller infrared signal intensity
Optical path and the optical path that is blocked for starting and terminate boundary alignment touch area.
Second positioning unit 713 is used for when the first difference is not more than the second difference, with the previous item and latter item light
Road is to originate and terminate boundary alignment touch area.
Device provided by Embodiment 2 of the present invention for occurring to position touch area when touch operation on infrared touch panel,
Since touch operation is smaller or scanning optical path is sparse, it is easy to cause that there are the optical paths that is blocked, and this is blocked before optical path
One optical path and latter optical path are not blocked, at this point, also may be implemented to position and export touch area.
About positioning touch area provided by Embodiment 2 of the present invention the further explaining of device, explain, Ke Yican
Examine the specific descriptions of the method in embodiment one to positioning touch area, the realization principle and beneficial effect class of the device and method
Seemingly, details are not described herein.
It is described respectively for the convenience of description, the device for positioning touch area is divided into each unit with function.Certainly, In
When implementing the present invention, the function of each unit can be realized in the same or multiple software and or hardware, can be integrated at one
Unit is managed, is also possible to each unit and physically exists alone, can also be integrated in one unit with two or more units.
Embodiment three
The present embodiment provides a kind of infrared touch control terminal equipment, comprising: infrared touch panel, memory, processor and storage
On a memory and the computer program that can run on a processor, wherein processor realizes embodiment when executing above procedure
One method for occurring to position touch area when touch operation on infrared touch panel provided.
It is exemplary, as shown in figure 8, memory 81 and processor 82 are connected by control signal wire 84, and extend
Communication interface 83, wherein computer program is stored in advance in memory, the computer program after processor is run can be achieved on
State the method for occurring to position touch area when touch operation on infrared touch panel in embodiment one.
Wherein, it is stored with a threshold value greater than zero in memory, processor transfers the threshold value when running, and is used for basis
The size of infrared signal strength difference and threshold value determines whether using the optical path that is blocked as a boundary of touch area, when infrared
When signal strength difference is greater than threshold value, using the optical path that is blocked as a boundary of touch area；When infrared signal strength difference not
When greater than threshold value, not using the optical path that is blocked as a boundary of touch area.
It should be noted that above-mentioned infrared touch control terminal equipment can also include for cooperating positioning provided in this embodiment
The other component that the device of touch area uses, such as input/output subsystem, peripheral device interface, controller, herein to it
Its specific component repeats no more.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, Ke Yitong
The relevant hardware of computer program instructions is crossed to complete, the program can be stored in a computer-readable storage medium,
The program may include such as the process in above-described embodiment when being executed.Wherein, the storage medium can be disk, light
Disk, read-only memory or random access memory etc..
Above-described specific embodiment has carried out further in detail the purpose of the present invention, technical solution, beneficial effect
Describe in detail it is bright, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, instead within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in
In protection scope of the present invention.
Claims (5)
1. a kind of method for occurring to position touch area when touch operation on infrared touch panel, the touch area is with light
Road location parameter indicates and is used to indicate the region that touch operation is fallen on Current Scan direction, for according to multiple scanning directions
The intersection area of upper multiple touch areas, which determines, occurs touch operation position, which is characterized in that this method step includes:
When there is the optical path that is blocked, and when previous optical path of the optical path that is blocked and latter optical path are not blocked, really
The fixed previous item and the corresponding infrared signal strength difference of latter optical path；
When infrared signal strength difference is greater than threshold value, with smaller infrared signal intensity pair in the previous item and latter optical path
The optical path and the optical path that is blocked answered is startings and terminate boundary alignment touch area；
It is to originate and terminate boundary to determine with the previous item and latter optical path when infrared signal strength difference is not more than threshold value
Position touch area.
2. a kind of method for occurring to position touch area when touch operation on infrared touch panel, the touch area is with light
Road location parameter indicates and is used to indicate the region that touch operation is fallen on Current Scan direction, for according to multiple scanning directions
The intersection area of upper multiple touch areas, which determines, occurs touch operation position, which is characterized in that this method step includes:
When there is the optical path that is blocked, and when previous optical path of the optical path that is blocked and latter optical path are not blocked,
According to the previous item and the corresponding infrared signal intensity of latter optical path determine the first difference and the previous item and
Smaller infrared signal intensity and the corresponding infrared signal intensity of the optical path that is blocked determine the second difference in latter optical path；
When the second difference is less than the first difference, with the smaller corresponding optical path of infrared signal intensity and the optical path that is blocked
To originate and terminating boundary alignment touch area；
It is to originate and terminate boundary alignment touching with the previous item and latter optical path when the second difference is not less than the first difference
Touch region.
3. a kind of device for occurring to position touch area when touch operation on infrared touch panel characterized by comprising
Touch area positioning unit, for when there is the optical path that is blocked, and previous optical path of the optical path that is blocked and latter
When optical path is not blocked, with two optical paths in optical path and its previous item and latter optical path that are blocked for starting and eventually
Only boundary alignment touch area is specifically included with lower unit:
First difference value determining unit, for determining the previous item and the corresponding infrared signal strength difference of latter optical path；
First positioning unit is used for when infrared signal strength difference is greater than threshold value, in the previous item and latter optical path
The smaller corresponding optical path of infrared signal intensity and the optical path that is blocked for starting and terminate boundary alignment touch area；
Two positioning units, for being with the previous item and latter optical path when infrared signal strength difference is not more than threshold value
Starting and termination boundary alignment touch area.
4. a kind of device for occurring to position touch area when touch operation on infrared touch panel characterized by comprising
Touch area positioning unit, for when there is the optical path that is blocked, and previous optical path of the optical path that is blocked and latter
When optical path is not blocked, with two optical paths in optical path and its previous item and latter optical path that are blocked for starting and eventually
Only boundary alignment touch area is specifically included with lower unit:
Second difference value determining unit, for determining first according to the previous item and the corresponding infrared signal intensity of latter optical path
Difference, and smaller infrared signal intensity and the corresponding infrared signal intensity of the optical path that is blocked determine the second difference；
Third positioning unit is used for when the first difference is greater than the second difference, with smaller in the previous item and latter optical path
The corresponding optical path of infrared signal intensity and the optical path that is blocked for starting and terminate boundary alignment touch area；
4th positioning unit, for being with the previous item and latter optical path when the first difference is not more than the second difference
Beginning and termination boundary alignment touch area.
5. a kind of infrared touch control terminal equipment, comprising: infrared touch panel and is stored on the memory memory, processor
And the computer program that can be run on the processor, which is characterized in that the processor realized when executing above procedure with
Lower step, the step include any the method step of claims 1 or 2.
Priority Applications (1)
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| CN107943340B (en) * | 2017-11-07 | 2020-12-04 | 海信视像科技股份有限公司 | Touch screen scanning detection method and device |
| CN108304091B (en) * | 2018-01-19 | 2021-08-17 | 昆山国显光电有限公司 | Touch screen control method and device and touch screen |
| CN109542276B (en) * | 2018-11-22 | 2022-02-08 | 青岛海信商用显示股份有限公司 | Touch point identification method and device and display equipment |
| CN110489015B (en) * | 2019-08-19 | 2023-08-08 | 青岛海信商用显示股份有限公司 | Touch point determining method and device, touch screen and display |
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