CN106354324A - Scanning method and device of infrared touch screen - Google Patents
Scanning method and device of infrared touch screen Download PDFInfo
- Publication number
- CN106354324A CN106354324A CN201610805208.XA CN201610805208A CN106354324A CN 106354324 A CN106354324 A CN 106354324A CN 201610805208 A CN201610805208 A CN 201610805208A CN 106354324 A CN106354324 A CN 106354324A
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- China
- Prior art keywords
- touch panel
- infrared touch
- user
- scanning
- detection
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Classifications
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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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- 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
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
Abstract
The invention discloses a scanning method and device of an infrared touch screen. The method includes the steps that during running of the infrared touch screen, user detection is carried out on the portion in front of the infrared touch screen, and the detection result that a user exists in front of the infrared touch screen is obtained; positioning of the position of the user relative to the infrared touch screen is triggered according to the detection result that the user exists in front of the infrared touch screen, a scanning region, below a preset scanning direction, of the infrared touch screen is determined according to the position and the preset scanning direction, and subjected to infrared scanning, and a touch point in the infrared touch screen is tracked and determined. According to the scanning method and device of the infrared touch screen, a certain scanning region can be selected according to the position of the user relative to the infrared touch screen, the area of the infrared scanning region is reduced, infrared scanning delays in various scanning directions are shortened accordingly, and the infrared scanning efficiency in the infrared touch screen is improved.
Description
Technical field
It relates to infrared touch panel field, particularly to a kind of scan method of infrared touch panel and device.
Background technology
Touch screen be a kind of can receives input signal vicariouss display device, provide one kind for current electronic product
Simply, conveniently, natural subscriber computer exchange method.In various types of touch screens, infrared touch screen adapts to due to having environment
Property strong, the life-span is longer, recognizable touch the advantages such as points are more and be widely used.
In infrared touch panel, detect whether infrared ray light path is blocked by noctovisor scan, so that it is determined that infrared touch
Touch point in screen.At present, the mode that infrared touch panel is carried out with noctovisor scan is mainly whole scan and spotting scaming.
Whole scan is in each scan period, and all infrared lamps are carried out once to the whole touch area of infrared touch panel
Scanning.Spotting scaming is before touch point is detected, and scan mode is identical with the mode of whole scan.After touch point is detected
Start touch point to be tracked scan, that is, long side direction only scans the neighbouring area centered on the long side direction coordinate of touch point
Domain, short side direction only scans the near zone centered on the short side direction coordinate of touch point.
Existing infrared scan mode is to realize the detection of first touch point, is required to by the way of full screen scanning.
However, in the case of infrared touch panel is larger-size, because scanning area is excessive, therefore sweep time is longer,
Slower to the response speed touching.And the increase with infrared touch screen dimensions, response time can become longer therewith, significantly
Reduce scan efficiency.
Content of the invention
For relatively low, the inspection of particularly first touch point that solves correlation technique mid-infrared touch screen middle infrared (Mid-IR) scan efficiency
Survey the technical problem of the overlong time needing to expend, present disclose provides a kind of scan method of infrared touch panel and device.
A kind of scan method of infrared touch panel is it is characterised in that include:
In the operation of infrared touch panel, carry out user's detection in front of described infrared touch panel, obtain described infrared touch
There is the result of detection of user in front of screen；
It is relatively described infrared that result of detection according to there is user in front of described infrared touch panel triggers the described user of positioning
The position of touch screen；
According to described position and default scanning direction, determine described infrared touch panel sweeping under described default scanning direction
Retouch region；
Described scanning area is carried out with noctovisor scan, follows the tracks of the touch point determining in described infrared touch panel.
A kind of scanning means of infrared touch panel is it is characterised in that include:
Detecting module, for, in the operation of infrared touch panel, carrying out user's detection in front of described infrared touch panel, obtaining
There is the result of detection of user in front of described infrared touch panel；
Location positioning module, for triggering described in positioning according to the result of detection that there is user in front of described infrared touch panel
The position of the relatively described infrared touch panel of user；
Scanning area determining module, for according to described position and default scanning direction, determining that described infrared touch panel exists
Scanning area under described default scanning direction；
Scan module, for described scanning area is carried out with noctovisor scan, follows the tracks of and determines in described infrared touch panel
Touch point.
The technical scheme that embodiment of the disclosure provides can include following beneficial effect:
In the operation of infrared touch panel, carry out user's detection in front of infrared touch panel, obtain depositing in front of infrared touch panel
In the result of detection of user, it is relatively described infrared that the result of detection according to there is user in front of infrared touch panel triggers positioning user
The position of touch screen, and then according to this position and default scanning direction, determine infrared touch panel sweeping under default scanning direction
Retouch region, by scanning area is carried out with noctovisor scan, follow the tracks of the touch point determining in infrared touch panel, thus by visiting
Measure when there is user in front of infrared touch panel, choose one according to user relative to the position of infrared touch panel and default scanning direction
Fixed scanning area, and then noctovisor scan is carried out to scanning area.Because scanning area is that infrared touch panel entirely touches
In region, a less region, thus substantially reducing the time delay of noctovisor scan under each scanning direction, improves infrared touch
The scan efficiency of screen middle infrared (Mid-IR), greatly reduces the time that the detection of first touch point needs to expend.
It should be appreciated that above general description and detailed description hereinafter are only exemplary, can not be limited this
Open.
Brief description
Accompanying drawing herein is merged in description and constitutes the part of this specification, shows the enforcement meeting the present invention
Example, and be used for together explaining the principle of the present invention in description.
Fig. 1 is a kind of scan method flow chart of the infrared touch panel according to an exemplary embodiment；
Fig. 2 is a kind of structural representation of the infrared touch panel according to an exemplary embodiment；
Fig. 3 is in the operation of infrared touch panel of the corresponding embodiment of Fig. 1, carries out user's detection in front of infrared touch panel,
Obtain the flow chart that there are user steps in front of infrared touch panel；
Fig. 4 be the corresponding embodiment of Fig. 1 according to position and default scanning direction, determine infrared touch panel in default scanning side
The flow chart of downward scanning area step；
Fig. 5 be the corresponding embodiment of Fig. 1 according to position and default scanning direction, determine infrared touch panel in default scanning side
The flow chart of downward scanning area step；
Fig. 6 be according to an exemplary embodiment under default scanning direction to user relative to infrared touch panel position
Put the structural representation being extended；
Fig. 7 be the corresponding embodiment of Fig. 1 scanning area is carried out with noctovisor scan, follow the tracks of and determine touching in infrared touch panel
The flow chart touching a step；
Fig. 8 is a kind of scan method flow chart of the infrared touch panel according to an exemplary embodiment；
Fig. 9 is a kind of block diagram of the scanning means of infrared touch panel according to an exemplary embodiment；
Figure 10 is the block diagram of the corresponding judge module implementing to exemplify of Fig. 9；
Figure 11 is the block diagram of the corresponding scanning area determining module implementing to exemplify of Fig. 9；
Figure 12 is the block diagram of the corresponding scan module implementing to exemplify of Fig. 9；
Figure 13 is a kind of block diagram of the scanning means of infrared touch panel according to an exemplary embodiment.
Specific embodiment
Here in detail explanation will be executed to exemplary embodiment, its example is illustrated in the accompanying drawings.Explained below is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the present invention.On the contrary, they be only with such as appended
The example of the consistent apparatus and method of some aspects being described in detail in claims, the present invention.
Fig. 1 is a kind of scan method flow chart of the infrared touch panel according to an exemplary embodiment.As Fig. 1 institute
Show, the scan method of this infrared touch panel may comprise steps of.
In step s110, in the operation of infrared touch panel, carry out user's detection in front of infrared touch panel, obtain infrared
There is the result of detection of user in front of touch screen.
In infrared touch panel, noctovisor scan need to be carried out to touch area, infrared touch panel be carried out touch behaviour to know
The touch point made.Current noctovisor scan, when the size of infrared touch panel is larger, because scanning area is excessive, leads to scan
Time is longer, makes slower to the response speed touching, and the increase with touch screen size, and response time can be longer.
The user that infrared touch panel is carried out in running detects, and whether there is user for determining in front of infrared touch panel.With
Corresponding, obtained result of detection, include the result of detection that there is user in front of infrared touch panel, and infrared touch
There is not the result of detection of user in front of screen.
When there is user in front of infrared touch panel, for infrared touch panel, the probability of triggering touch operation is relatively
Greatly, therefore, after obtaining existing the result of detection of user in front of infrared touch panel, can be used for realizing follow-up infrared touch
The scanning of first touch point and response process in screen, and then improve first in infrared touch panel touching under the cooperation of this result of detection
Touch response speed a little.
Implement to carrying out user's detection in front of infrared touch panel, the image in front of infrared touch panel can be shot,
And then carry out the detection of user by image recognition；The method that infrared thermometry can also be carried out carries out the detection of user；Also may be used
With in other way to the detection carrying out user in front of infrared touch panel.By to carrying out user's spy in front of infrared touch panel
Survey, obtain in front of infrared touch panel, there is the result of detection that there is not user in front of user or infrared touch panel.
It should be understood that in infrared touch panel, being accordingly equiped with emission lamp and receive lamp, being lighted by emission lamp
With the reception receiving lamp, light net is formed on infrared touch panel, and then perceives the touch point of touch operation.Specifically, Fig. 2 is
A kind of structural representation of the infrared touch panel according to an exemplary embodiment.As shown in Fig. 2 the outward appearance of infrared touch panel
It is a rectangular configuration, be made up of long side and minor face.Long when including a long edge emitting 110 and a long receiving while 120,
Minor face includes a minor face transmitting side 130 and a short receiving while 140.On long edge emitting side 110 and minor face transmitting side 130
It is equiped with some emission lamps, in long receiving while 120 and short receiving while 140, correspondence is equiped with some reception lamps accordingly.Logical
Cross control these emission lamps and receive lamp make its according to one-to-one mode form transmitting receive right, and in a certain order
It is respectively turned on every a pair of emission lamp and receive lamp and carry out noctovisor scan.By detecting every a pair of emission lamp and receiving between lamp
Infrared ray whether be blocked, to determine whether there is touch event occur.
In step s120, it is relatively infrared that the result of detection according to there is user in front of infrared touch panel triggers positioning user
The position of touch screen.
Carry out user according to preset reference in infrared touch panel to determine with respect to the position of infrared touch panel.Show at one
In example property embodiment, in infrared touch panel, preset benchmark is the coordinate system set up in infrared touch panel.According to infrared touch panel
The coordinate system of middle foundation, when detect there is user in front of infrared touch panel when, calculate the position that user is relative to infrared touch panel
Put the coordinate in coordinate system；When detect there is not user in front of infrared touch panel when, then choose low scan screen frequency to infrared
Touch screen carries out noctovisor scan.
In step s130, according to position and default scanning direction, determine infrared touch panel under default scanning direction
Scanning area.
Scanning direction is the infrared ray light path pre-setting.During one emission lamp transmitting infrared ray, corresponding multiple receptions
Lamp all can receive the infrared ray of this emission lamp transmitting.Receive arbitrary side reception lamp from some emission lamp to opposite
Infrared ray light path is the light path of one angle of emission lamp, i.e. infrared ray light path under a scanning direction.And some emission lamp
With the different infrared ray light paths receiving between lamp are the infrared ray light path under different scanning direction in the reception side of opposite.
Each scanning direction includes the scanning of long edge emitting side and long receiving while, minor face transmitting side and short receiving while
Direction.For a scanning direction, emission lamp and receive lamp according to one-to-one mode form transmitting receive right, connect successively
Lead to every a pair of emission lamp and receive lamp, and then under this scanning direction, infrared touch panel is scanned.
Plural scanning direction can be preset, each scan period all includes each default scanning side in infrared touch panel
Downward noctovisor scan, the noctovisor scan of each default scanning direction is carried out successively.During infrared touch panel runs, pass through
Scan period one by one carries out noctovisor scan again and again to infrared touch panel to infrared touch panel, and perception is infrared to touch
Touch the touch point of touch operation in screen.
Fig. 3 is that the structure of the two different scanning directions Xia Chang side infrared ray light path according to an exemplary embodiment is shown
It is intended to.
Parallel to the short side direction of infrared touch panel, a1, a2 ... an is the transmitting in long edge emitting side for scanning direction 1
Lamp, a1, a2 ... an is the reception lamp in long receiving while, a1 and a1, a2 and a2 ... an and an separately constitute transmitting and receive
Right, by control, be respectively turned in a certain order every a pair of emission lamp and receive lamp, thus every a pair of transmitting receive lamp it
Between light path be the light path being parallel to each other.Similar, scanning direction 2 is at an angle with the short side direction of infrared touch panel,
B1, b2 ... bm is the emission lamp in long edge emitting side, and b1, b2 ... bm is the reception lamp in long receiving while, b1 and b1, b2
And b2 ... bm and bm separately constitute transmitting receive right, by control, be respectively turned on every a pair of emission lamp in a certain order
With reception lamp, thus every a pair of emission lamp and the light path receiving between lamp are the light path being parallel to each other.
Relatively large sized due to infrared touch panel, when the whole touch area of infrared touch panel is scanned, will
Increase the time of noctovisor scan.Therefore scanning area is determined relative to the position of infrared touch panel and default scanning direction according to user
Domain, and then only noctovisor scan is carried out to scanning area.Because scanning area is whole touch area in infrared touch panel
A part of region, therefore shortens the time of noctovisor scan, also accordingly decreases light path scanning.
Direction due to infrared ray light path under different scanning direction is different, and therefore different scanning direction Xia Chang side is red
The region that the infrared ray light path of outside line light path and minor face intersects, that is, the shape of scanning area is also different.Thus need to be in user
Relatively on the basis of the position of infrared touch panel, the scanning area in infrared touch panel under this scanning direction is determined according to scanning direction
Domain.
In step s140, scanning area is carried out with noctovisor scan, follow the tracks of the touch point determining in infrared touch panel.
According to the scanning area under each default scanning direction, determine and carry out noctovisor scan under each default scanning direction
When the emission lamp that need to use and receive lamp.And then carry out the noctovisor scan under each default scanning direction successively.
Because scanning area is a part of region in infrared touch panel, thus eliminate other areas in infrared touch panel
The noctovisor scan in domain, shortens the sweep time under each scanning direction.
By method as above, the front detecting infrared touch panel in advance whether there is user, infrared detecting
When there is user in front of touch screen, scanning area is determined relative to the position of infrared touch panel and default scanning direction according to user,
And then noctovisor scan is carried out to this scanning area and follows the tracks of the touch point determining in infrared touch panel, it is to avoid in infrared touch panel
Front exists and still carries out noctovisor scan to the whole touch area of infrared touch panel during user it is ensured that accurate track and localization arrives
In infrared touch panel while touch point, improve the efficiency that infrared touch panel is carried out with noctovisor scan, reduce response red
The response time of touch point in outer touch screen.
Fig. 4 is the detailed description to step s110 according to an exemplary embodiment.As shown in figure 4, this step
S110 may comprise steps of.
In step s111, in the operation of infrared touch panel, shoot the image obtaining in front of infrared touch panel.
It is equiped with photographic head, in the running of infrared touch panel, shooting by photographic head in infrared touch panel
Image in front of infrared touch panel.
In step s112, the presence according to user corresponding region in image generates has user's in front of infrared touch panel
Result of detection.
Image recognition is carried out to the image shooting in front of the infrared touch panel obtaining, there is user couple in image when recognizing
During the region answered, then generate the result of detection that there is user in front of infrared touch panel.
The mode that realization carries out image recognition to the image shooting in front of the infrared touch panel obtaining has multiple.For example, may be used
By recognition of face is carried out to the image in front of infrared touch panel, then to judge when recognizing the feature that there is face in image
There is user in the front of infrared touch panel；Can also be sentenced by human eye pupil identification is carried out to the image in front of infrared touch panel
Break and the front of infrared touch panel and there is user；In other way figure can also be carried out to the image in front of infrared touch panel
As identification.
By method as above, the image in front of infrared touch panel is shot using the photographic head in infrared touch panel,
And then gone out when there is user in front of infrared touch panel according to image recognition, thus according to user relative to the position of infrared touch panel and
Default scanning direction determines scanning area, carries out noctovisor scan to this scanning area and follows the tracks of and determine touching in infrared touch panel
Touch a little, it is to avoid exist in front of infrared touch panel and still infrared ray is carried out to the whole touch area of infrared touch panel during user and sweep
Retouch it is ensured that accurate track and localization while touch point, improves and carries out infrared ray to infrared touch panel in infrared touch panel
The efficiency of scanning, reduces the time that the first touch point of detection needs to expend.
Fig. 5 is the detailed description to step s130 according to an exemplary embodiment.As shown in figure 5, this step
S130 may comprise steps of.
In step s131, according to default scanning direction, position is extended, touched infrared by extending forming position
Touch the elongated area in screen.
Elongated area is the region obtained by user is extended relative to the position of infrared touch panel.Determined by extend
Region corresponds to the touch area that user carries out touch operation in infrared touch panel.
Because the user in front of infrared touch panel is touch area in infrared touch panel relative to the position of infrared touch panel
Sub-fraction, and the user in front of infrared touch panel is easy to touch the region beyond infrared touch panel position relatively, such as
Fruit only carries out noctovisor scan to user relative to the position of infrared touch panel, just cannot accurately track and localization to before infrared touch panel
The user of side carries out the touch point of touch operation.It is therefore desirable to extending relative to the position of infrared touch panel to user, enter
And the region after extending is carried out with noctovisor scan, improve the accuracy of track and localization touch point.
Under default scanning direction, according to preset length value, user is swept along default relative to the position of infrared touch panel
Retouch direction and the vertical direction of default scanning direction is extended respectively, thus forming the elongated area of rectangular shape.
In one exemplary embodiment, this preset length value refers to average handss when adult human arm extends naturally
Arm lengths.
Fig. 6 be according to an exemplary embodiment under default scanning direction to user relative to infrared touch panel position
Put the structural representation being extended.The position of user 200 infrared touch panel relatively is rectangle 201 region, adult human user arm
The a length of d of average arm when naturally extending, by rectangle 201 region along the four of scanning direction and the vertical direction of scanning direction
Individual side carries out the extension of d length respectively, forms elongated area 300.
In step s132, determine that elongated area is scanning area under default scanning direction for the infrared touch panel.
Scanning area is to carry out the region of noctovisor scan in infrared touch panel under a default scanning direction.Namely
Say, according to default scanning direction, the corresponding elongated area in each scanning direction will be respectively obtained, so true by this elongated area
Surely obtain the scanning area under each scanning direction.
Elongated area after user is extended relative to the position of infrared touch panel is as infrared under default scanning direction
The scanning area of line scanning, thus scanning area covers the position that user is relative to infrared touch panel, and reserved one for user
Fixed touch operation space is it is ensured that the touch operation in infrared touch panel is tracked the accuracy positioning to user.
After user moves relative to infrared touch panel, redefine the position that user is relative to infrared touch panel, and root
Extended according to the position redefining, so update scanning area it is ensured that identification infrared touch panel in touch point accurate
Property.
By method as above, determine there is user in front of infrared touch panel when, relatively infrared to user touch
The position touching screen is extended, and using the elongated area after extending as the scanning area under default scanning direction, thus in inspection
Measure and infrared touch panel need not be scanned whole touch area when there is user in front of infrared touch panel, and scanning area
User can be covered and carry out touch operation region it is ensured that in identification infrared touch panel while the accuracy of touch point, improving
Infrared touch panel carried out with the efficiency of noctovisor scan, reduces the response time of touch point in infrared touch panel.
Fig. 7 is the detailed description to step s140 according to an exemplary embodiment.In step s140, preset scanning
Direction has multiple, and this step s140 can also comprise the following steps.
In step s141, successively noctovisor scan is carried out to corresponding scanning area according to multiple default scanning directions.
As previously described, under each default scanning direction, all according to default scanning direction to user relative to infrared touch panel
Position is extended, and forms the elongated area under each scanning direction respectively, and then as the scanning area under each default scanning direction
Domain.All there is its corresponding scanning area therefore each default scanning direction, by being scanned to scanning area, obtains each scanning side
The region occurring to touch recognizing downwards.
In step s142, by the noctovisor scan of multiple default scanning directions, determine the touch in infrared touch panel
Point.
Because under each default scanning direction all there is certain deviation in noctovisor scan, each default scanning direction recognizing
The lower region occurring to touch simply comprises the region of touch point, and touch point is the part in these regions.Therefore need to be in identification
To each default scanning direction under occur touch region in positioned, determine that user carries out touch operation to infrared touch panel
Touch point.
Specifically, the overlapping region in the region occurring to touch under each default scanning direction recognizing, this coincidence area are calculated
Domain is the touch point that user carries out touch operation to infrared touch panel.
By method as above, preset multiple scanning directions, and according to multiple default scanning directions to scanning area
It is scanned, the quasi- touch scope according to obtaining under multiple scanning directions determines the touch point in infrared touch panel, improves knowledge
The accuracy of touch point in other infrared touch panel.
Fig. 8 is a kind of scan method flow chart of the infrared touch panel according to an exemplary embodiment.As Fig. 8 institute
Show, when result of detection is the result of detection that there is not user in front of infrared touch panel, the scan method of this infrared touch panel also may be used
To comprise the following steps.
In step s210, the result of detection according to there is not user in front of infrared touch panel triggers chooses default low sweep
Retouch frequency.
Under each default scanning direction, each infrared ray light path in turn switches on, and each default scanning direction
It is scanned successively.Therefore, in each scan period, infrared ray light path under each default scanning direction need to be carried out successively
Scanning, thus periodic noctovisor scan is carried out according to the scan period in infrared touch panel.When rate of scanning is unit
Carry out the periodicity of noctovisor scan in interior infrared touch panel.Carry out noctovisor scan in infrared touch panel in unit interval
Periodicity is bigger, then rate of scanning is lower；Vice versa.
In infrared touch panel, it is previously provided with the frequency of two or more noctovisor scans.Detect in front of infrared touch panel
When there is not user, choose the low rate of scanning pre-setting.According to the whole Petting Area to infrared touch panel for the low rate of scanning
Domain carries out noctovisor scan as scanning area.
For example, in infrared touch panel, it is previously provided with 2 kinds of noctovisor scan frequencies, respectively 1000 hertz and 200 hertz
Rate of scanning, when there is not user in front of infrared touch panel, with 200 hertz of rate of scanning entirely touching to infrared touch panel
Touch region and carry out ultrared scanning, keep the detecting to touch operation in infrared touch panel.
In step s220, according to low rate of scanning, entered using the whole touch area of infrared touch panel as scanning area
Row noctovisor scan.
There is not user in front of infrared touch panel, illustrate temporarily not have touch operation in infrared touch panel, thus accordingly
Reduction noctovisor scan frequency, reduce detecting sensitivity to touch event in infrared touch panel.Detecting infrared touching
Touch the frequency improving noctovisor scan when there is user in front of screen, thus automatically carry out red according to the external environment condition of infrared touch panel
The regulation and control of outer line scanning frequency.
By method as above, when there is not user in front of infrared touch panel, automatically choose low rate of scanning pair
The whole touch area of infrared touch panel carries out noctovisor scan, saves the power consumption of infrared touch panel, improves infrared touch
The service life of screen.
Following for disclosure mobile terminal embodiment, the scan method that can be used for executing this above-mentioned infrared touch panel is implemented
Example.For the details not disclosed in the scanning means embodiment of disclosure infrared touch panel, refer to disclosure infrared touch panel
Scan method embodiment.
Fig. 9 is a kind of block diagram of the scanning means of infrared touch panel according to an exemplary embodiment, and this is infrared tactile
The scanning means touching screen includes but is not limited to: detecting module 110, location positioning module 120, scanning area determining module 130 and
Scan module 140.
Detecting module 110, for, in the operation of infrared touch panel, carrying out user's detection in front of infrared touch panel, obtaining
There is the result of detection of user in front of infrared touch panel；
Location positioning module 120, for triggering positioning user according to the result of detection that there is user in front of infrared touch panel
The position of relative infrared touch panel；
Scanning area determining module 130, for according to position and default scanning direction, determining that infrared touch panel sweeps default
Retouch the scanning area under direction；
Scan module 140, for scanning area is carried out with noctovisor scan, follows the tracks of the touch determining in infrared touch panel
Point.
Optionally, as shown in Figure 10, detecting module 110 includes but is not limited to: image taking submodule 111 and result generate
Submodule 112.
Image taking submodule 111, for, in the operation of infrared touch panel, shooting the figure obtaining in front of infrared touch panel
Picture；
Result generates submodule 112, is generated before infrared touch panel according to the presence of user corresponding region in image for root
There is the result of detection of user in side.
Optionally, as shown in figure 11, scanning area determining module 130 includes but is not limited to: elongated area forms submodule
131 and scanning area determination sub-module 132.
Elongated area forms submodule 131, for according to default scanning direction, extending to position, by extending shape
Become elongated area in infrared touch panel for the position；
Scanning area determination sub-module 132, for determining that elongated area is infrared touch panel under default scanning direction
Scanning area.
Optionally, as shown in figure 12, default scanning direction has multiple, and scan module 140 includes but is not limited to: multi-direction sweeps
Retouch submodule 141 and touch point determination sub-module 142.
Multi-direction scanning submodule 141, for carrying out to corresponding scanning area successively according to multiple default scanning directions
Noctovisor scan；
Touch point determination sub-module 142, for the noctovisor scan by multiple default scanning directions, determines infrared touch
Touch point in screen.
Optionally, as shown in figure 13, the disclosure also provides a kind of scanning means of infrared touch panel, and this device also includes frequency
Rate chooses module 210 and full screen scanning module 220.
Frequency selection purposes module 210, chooses in advance for being triggered according to the result of detection that there is not user in front of infrared touch panel
If low rate of scanning；
Full screen scanning module 220, for according to low rate of scanning, using the whole touch area of infrared touch panel as scanning
Region carries out noctovisor scan.
It is described above and precision architecture illustrated in the accompanying drawings it should be appreciated that the invention is not limited in, and
And various modifications and changes can executed without departing from the scope.The scope of the present invention only to be limited by appended claim.
Claims (10)
1. a kind of scan method of infrared touch panel is it is characterised in that include:
In the operation of infrared touch panel, carry out user's detection in front of described infrared touch panel, before obtaining described infrared touch panel
There is the result of detection of user in side；
Result of detection according to there is user in front of described infrared touch panel triggers the positioning relatively described infrared touch of described user
The position of screen；
According to described position and default scanning direction, determine scanning area under described default scanning direction for the described infrared touch panel
Domain；
Described scanning area is carried out with noctovisor scan, follows the tracks of the touch point determining in described infrared touch panel.
2. method according to claim 1 is it is characterised in that in the operation of described infrared touch panel, infrared touches to described
Touch and in front of screen, carry out user's detection, obtain the result of detection that there is user in front of described infrared touch panel, comprising:
In the operation of described infrared touch panel, shoot the image obtaining in front of described infrared touch panel；
Presence according to user corresponding region in described image generates the result of detection that there is user in front of described infrared touch panel.
3. method according to claim 1 it is characterised in that described according to described position with default scanning direction, determine
Scanning area under described default scanning direction for the described infrared touch panel, comprising:
According to default scanning direction, described position is extended, described position is formed described infrared tactile by described extension
Touch the elongated area in screen；
Determine that described elongated area is scanning area under described default scanning direction for the described infrared touch panel.
4. method according to claim 1, it is characterised in that described default scanning direction has multiple, described is swept to described
Retouch region and carry out noctovisor scan, follow the tracks of and determine that the step of the touch point in described infrared touch panel includes:
Successively noctovisor scan is carried out to described corresponding scanning area according to the plurality of default scanning direction；
By the noctovisor scan of the plurality of default scanning direction, determine the touch point in described infrared touch panel.
5. method according to claim 1 is it is characterised in that described result of detection is to there is not use in front of infrared touch panel
The result of detection at family, methods described also includes:
Result of detection according to there is not user in front of described infrared touch panel triggers chooses default low rate of scanning；
According to described low rate of scanning, infrared ray is carried out as scanning area using the whole touch area of described infrared touch panel and sweeps
Retouch.
6. a kind of scanning means of infrared touch panel is it is characterised in that include:
Detecting module, for, in the operation of infrared touch panel, carrying out user's detection in front of described infrared touch panel, obtains described
There is the result of detection of user in front of infrared touch panel；
Location positioning module, positions described user for triggering according to the result of detection that there is user in front of described infrared touch panel
The position of relatively described infrared touch panel；
Scanning area determining module, for according to described position and default scanning direction, determining described infrared touch panel described
Scanning area under default scanning direction；
Scan module, for described scanning area is carried out with noctovisor scan, follows the tracks of the touch determining in described infrared touch panel
Point.
7. device according to claim 6 is it is characterised in that described detecting module includes:
Image taking submodule, for, in the operation of described infrared touch panel, shooting and obtaining in front of described infrared touch panel
Image；
Result generates submodule, generates in front of described infrared touch panel for the presence according to user corresponding region in described image
There is the result of detection of user.
8. device according to claim 6 is it is characterised in that described scanning area determining module includes:
Elongated area forms submodule, for according to default scanning direction, extending to described position, by described extension shape
Become elongated area in described infrared touch panel for the described position；
Scanning area determination sub-module, for determining that described elongated area is described infrared touch panel in described default scanning direction
Under scanning area.
9. device according to claim 6 is it is characterised in that there is multiple, described scan module described default scanning direction
Including:
Multi-direction scanning submodule, for carrying out to described corresponding scanning area successively according to the plurality of default scanning direction
Noctovisor scan；
Touch point determination sub-module, for the noctovisor scan by the plurality of default scanning direction, determines described infrared tactile
Touch the touch point in screen.
10. method according to claim 6 is it is characterised in that described result of detection is not exist in front of infrared touch panel
The result of detection of user, described device also includes:
Frequency selection purposes module, default for selection is triggered according to the result of detection that there is not user in front of described infrared touch panel
Low rate of scanning；
Full screen scanning module, for according to described low rate of scanning, using the whole touch area of described infrared touch panel as sweeping
Retouch region and carry out noctovisor scan.
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| CN201610805208.XA CN106354324B (en) | 2016-09-06 | 2016-09-06 | Scanning method and device of infrared touch screen |
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| CN201610805208.XA CN106354324B (en) | 2016-09-06 | 2016-09-06 | Scanning method and device of infrared touch screen |
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| CN106354324B (en) | 2020-04-03 |
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Address after: 266555, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Patentee after: Hisense Video Technology Co.,Ltd. Address before: 266555, No. 218, Bay Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: HISENSE ELECTRIC Co.,Ltd. |