CN106814920A - A kind of heuristic fast scanning method and system for infrared screen - Google Patents
A kind of heuristic fast scanning method and system for infrared screen Download PDFInfo
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- CN106814920A CN106814920A CN201611249514.6A CN201611249514A CN106814920A CN 106814920 A CN106814920 A CN 106814920A CN 201611249514 A CN201611249514 A CN 201611249514A CN 106814920 A CN106814920 A CN 106814920A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000010897 surface acoustic wave method Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 1
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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
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Abstract
The invention discloses a kind of heuristic fast scanning method for infrared screen, complete scanning light net is preset in the main control module of infrared screen, the complete scanning light net is included in some light formed between transmitter and the receiver；Judge the limited bar light in some light, the transmitter of the transmitting limited bar light and receive the region of formation between the receiver of the limited bar light, if there are touch objects to block, if it is not, then skipping the scanning to other light in the region.Present invention also offers a kind of system corresponding with the above method, including main control module, transmitter module, receiver module and signal processing module, main control module is electrically connected with transmitter module, receiver module and signal processing module respectively.The method of the present invention and system, in scanning, by the analysis to scanning information before, judge and remove some useless scan lines, can reduce a large amount of sweep times, substantially increase sweep speed.
Description
Technical field
The present invention relates to infrared screen scanning technique field, more particularly to a kind of heuristic quick scanning side for infrared screen
Method and system.
Background technology
With the development and popularization of computer technology, in early 1990s, there is a kind of brand-new man-machine interaction skill
Art --- touch screen technology.Using being clicked on icon or word that this touch screen technology user only needs on a display screen,
Computer just can carry out associative operation according to the instruction of input, and its constraint for being completely free of keyboard and mouse is wide using scope,
Make man-machine interaction more convenient.
As touch-control product technology is increasingly ripe, function, performance and cost requirement to touch-control product also more and more higher.Mesh
The preceding various commercialized touch screen technology for having been formed includes：Resistive technologies touch-screen, surface capacitance technology touch-screen, electric capacity
Technology touch-screen, infrared technology touch-screen, surface acoustic wave (SAW) technology touch-screen etc..Wherein, infrared touch panel is tied with it
Structure is simple, low cost, high reliability are applied to various occasions, and existing infrared touch panel is generally comprised installed in tactile
The infrared emission component array and infrared receiver component array on the printed circuit board (PCB) of detection zone surrounding are touched, it is infrared by detecting
The circumstance of occlusion of the light between radiated element array and infrared receiver component array recognizes the touch in touch detection region
Point.
The existing scanning technique of infrared screen is usually：Infrared emission component is previously set according to specific rule and infrared has connect
The corresponding relation between element is received, is just scanned according to the corresponding relation for setting during scanning, this correspondence pass for setting
System is referred to as expected design, and the corresponding relation refers to when driving an infrared emission component, which infrared receiver component to be scanned,
Such as every emission lamp scanning is just to 7 reception lamps of adjacent symmetric：Emission lamp n, correspondence scanning receive lamp for n-3, n-2,
N-1, n, n+1, n+2, n+3 }.In each frame, the scan line that will meet above rule is all scanned out.This scan mode belongs to
It is non intelligent, the fixed scan line of mechanical scanning every time, and have in the scan line that these are fixed some scan lines be without
, multiple scanning can cause sweep time to increase, the defect such as sweep speed reduction.
To sum up, a kind of heuristic fast scanning method and system for infrared screen is researched and developed, in scanning, by before
The analysis of scanning information, intentional skips the no scan line of some determinations, reduces a large amount of sweep times, improves sweep speed,
Seem increasingly important.
The content of the invention
It is an object of the invention to be directed to existing defect, there is provided a kind of heuristic fast scanning method for infrared screen
And system, in scanning, by the analysis to scanning information before, judge and remove some useless scan lines, reduce a large amount of
Sweep time, improve sweep speed.
In order to solve the above-mentioned technical problem, the invention discloses a kind of heuristic fast scanning method for infrared screen,
Comprise the following steps：
S1, complete scanning light net is preset in the main control module of infrared screen, the complete scanning light net is included in transmitting
The some light formed between device and the receiver；
The limited bar light in some light in S2, the scanning step S1, according to the limited bar light, judges described
Formed between the receiver of limited bar light, the transmitter for launching the limited bar light and the reception limited bar light
Region, if there are touch objects to block, if it is not, then skipping the scanning to other light in the region.
Preferably, the step S2 is further comprising the steps：
The limited bar light in some light in S201, the scanning step S1, the limited bar light is by being disposed adjacent
Transmitter launched；
S202, judge whether the limited bar light in the step S201 there are touch objects to block, if the limited bar light does not have
There are touch objects to block, then judge the limited bar light, launch the transmitter of the limited bar light and receive described limited
The region formed between the receiver of bar light does not have touch objects to block；
S203, skip scanning to other light in the region in the step S202.
Further, the region in the step S202 is shaped as quadrangle.
Further, the step of also including default scanning rule before the step S1, the default scanning rule is specific
For：Each transmitter scans n transmitter, i.e. the light of each transmitter transmitting is received by n receiver.
Further, it is further comprising the steps of before the step S1：Judge whether it is multipoint operation, and it is determined that being many
The situation of point operation enters the step S1.
Correspondingly, the invention also discloses a kind of heuristic quick scanning system for infrared screen, including main control module,
Transmitter module, receiver module and signal processing module, the main control module respectively with the transmitter module, the receiver module and
The signal processing module electrical connection；The transmitter module includes emission controlling unit and the battle array of the transmitter containing multiple transmitters
Row, the receiver module includes the receiver array containing reception control unit and multiple receivers；
The emission controlling unit, for gating the transmitter；The reception control unit, for gating the receiver；
The transmitter is used to launch light to the receiver, and the receiver is used to receive the light of the transmitter transmitting
Line, forms some light between the transmitter and the receiver；
The signal processing module, for receiving and processing the signal of the receiver output, and treated signal is sent
To the main control module；
The main control module, presets complete scanning light net, and the complete scanning light net is included in transmitter and is connect with described
Receive some light formed between device；Limited bar light in the control scanning some light, and according to described limited
Bar light, judges the limited bar light, launches the transmitter of the limited bar light and receive the limited bar light
The region formed between receiver, if there are touch objects to block, if it is not, then skipping the scanning to other light in the region.
Further, the signal output part of the main control module respectively with the signal input part of the emission controlling unit and
The signal input part of the reception control unit is connected, the letter of the signal output part of the emission controlling unit and the transmitter
Number input is connected, and the signal output part of the reception control unit is connected with the signal input part of the receiver, described to connect
The signal output part for receiving device is connected with the signal input part of the signal processing module, the signal output of the signal processing module
End is connected with the signal input part of the main control module.
Further, the limited bar light is launched by the transmitter being disposed adjacent.
Further, the region is shaped as quadrangle.
Heuristic fast scanning method and system for infrared screen of the invention, has the advantages that：The present invention
Complete scanning light net is first preset in the main control module of infrared screen, the complete scanning light net is included in transmitter and institute
The some light formed between receiver are stated, the limited a small amount of light in some light is scanned, judges that this is limited
Bar light, the transmitter for launching the limited bar light and the region formed between the receiver of the limited bar light is received, be
It is no to there are touch objects to block, if the region does not have touch objects to block, other in the region in addition to above-mentioned limited bar light
Light, is not required to be scanned, i.e. the present invention can be easy to judge and to remove some useless by the information that scans before
Scan line（Such as except other light of the limited bar light in above-mentioned zone）, in scanning, these can be skipped true
Fixed useless scan line, greatly reduces sweep time, improves sweep speed.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, below will be to being wanted needed for embodiment or description of the prior art
The accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Its accompanying drawing.
Fig. 1 is the flow chart of the heuristic fast scanning method for infrared screen of the invention；
Fig. 2 is the schematic diagram of the scan method in one embodiment of the invention；
Fig. 3 is the schematic diagram of the scan method in second embodiment of the invention；
Fig. 4 is the schematic diagram of the scan method in the 3rd embodiment of the invention；
Fig. 5 is the structured flowchart of the heuristic quick scanning system for infrared screen of the invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in inventive embodiments is carried out clear, complete
Ground description, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on this
Inventive embodiment, the every other reality that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
Embodiment 1
As shown in figure 1, present embodiment discloses a kind of heuristic fast scanning method for infrared screen, comprising the following steps：
The present invention utilizes existing information（The part scanned in position, this frame including previous frame midpoint, completion is scanned
Preceding one side etc.）, determine followed by scan operation.
Scanning process is generally divided into two parts：Transversal scanning（H directions）And longitudinal scanning,（V directions）.
H directions and V directions are usually interval scan, i.e. ... H, V, H, V, H, V, H, V ...
When multiple spot is recognized, touch objects are usually finger, and size is larger, can typically shelter from main shaft.Therefore, it is determined that being many
After point operation, this quick scan mode can be immediately opened, and enter step S1；Also include default scanning before the step S1
The step of rule, the default scanning rule is specially：Each transmitter scans n receiver, i.e. each transmitter hair
The light penetrated is received by n receiver；
S1, complete scanning light net is preset in the main control module of infrared screen, the complete scanning light net is included in transmitting
The some light formed between device and the receiver；
The limited bar light in some light in S2, the scanning step S1, according to the limited bar light, judges described
Formed between the receiver of limited bar light, the transmitter for launching the limited bar light and the reception limited bar light
Region, if there are touch objects to block, if it is not, the scanning to other light in the region is then skipped, if so, then scanning the area
Light in domain；
Wherein, the step S2 is further comprising the steps：
The limited bar light in some light in S201, the scanning step S1, the limited bar light is by being disposed adjacent
Transmitter transmitting；
S202, judge whether the limited bar light in the step S201 there are touch objects to block, if the limited bar light does not have
There are touch objects to block, then judge the limited bar light, launch the transmitter of the limited bar light and receive described limited
The region formed between the receiver of bar light does not have touch objects to block, and the region is shaped as quadrangle；
S203, skip scanning to other light in the region in the step S202.
In the present embodiment, the limited bar light in the step S201 is launched and mutually by the transmitter being disposed adjacent
Between be parallel to each other, the shape of the quadrilateral area formed between limited bar light receiver corresponding thereto and transmitter
It is rectangle.
As shown in Fig. 2 containing multiple transmitters in radiated element（E1、E2、E3、E4、E5、E6、E7、E8Etc.）, receiving element
In contain multiple receivers（D1、D2、D3、D4、D5、D6、D7、D8Etc.）, default scanning rule is determined in advance before scanning, i.e., in advance
Determine that each transmitter scans n transmitter, n is the integer more than or equal to 1（Each transmitter can such as be preset
Scanning 7 receivers of correspondence, it is possible to set E5Correspondence scanning D2-D8, naturally it is also possible to set E5The non-adjacent setting of correspondence scanning
Receiver, realize scanning flexible setting）, according to the default scanning rule, can between multiple transmitters and multiple receivers
To form some light.During scanning, complete scanning light net is preset in the main control module of infrared screen, this is complete to sweep
Retouch light net and be included in some light formed between transmitter and the receiver, scan first limited in some light
Bar light, such as described limited bar light is by E2、E3、E4、E5And E6Transmitting, and the E being parallel to each other2D2、E3D3、E4D4、
E5D5And E6D6, judge E2D2、E3D3、E4D4、E5D5And E6D6Whether blocked by touch objects, if E2D2、E3D3、E4D4、E5D5And E6D6
Do not blocked by touch objects, then can determine that E2D2、E3D3、E4D4、E5D5、E6D6With transmitter E2、E3、E4、E5、E6And receive
Device D2、D3、D4、D5、D6Between formed rectangular area E2D2D6 E6There is no touch objects to block, as rectangular area E2D2D6 E6No
In the case that touch objects are blocked, can skip to other light in the rectangular area, such as E2D3、E2D4、E3D6、E4D2、E4D5、
E5D3、E5D6、E6D4Etc. scanning, sweep time can be greatlyd save.
Continue as shown in Fig. 2 for some emission lamp；Such as E5（The scanning of each transmitter can such as be preset right
Answer 7 receivers, it is possible to set E5Correspondence scanning D2-D8, naturally it is also possible to set E5The reception of the non-adjacent setting of correspondence scanning
Device, the present embodiment is with E5Correspondence scanning D2-D8As a example by illustrate）For, during scanning, E is scanned first5D5, judge E5D5Whether
There are touch objects to block, for by E5Other light of transmitting（E5D2、E5D3、E5D4、E5D6、E5D7And E5D8）, can be by judging
E5D2、E5D3、E5D4、E5D6、E5D7Or E5D8Whether the light for being passed through is blocked to determine the need for scanning E5D2、E5D3、
E5D4、E5D6、E5D7Or E5D8.If E5D2、E5D3、E5D4、E5D6、E5D7Or E5D8The light for being passed through is not blocked, then can jump
Cross to E5D2、E5D3、E5D4、E5D6、E5D7Or E5D8Scanning, such as, if E2D2、E3D3、E4D4、E5D5And E6D6It is not blocked,
Then illustrate rectangular area E2D2D6 E6It is interior to exist without touching object, then can skip to the E in the rectangular area5D2、E5D3、
E5D4And E5D6Scanning, if E5D2、E5D3、E5D4、E5D6、E5D7Or E5D8There is one in the light for being passed through（Contain）Above by
Block, then E5D2、E5D3、E5D4、E5D6、E5D7Or E5D8Need scanned.If E7D7It is blocked, then explanation where there is touch
Thing, due to E5D7And E5D8Can be through E7D7, therefore, E5D7And E5D8Need scanned.
Therefore, for emission lamp E5For, it is necessary to scanning line be only E5D5、E5D7And E5D8Three lines.And for E5D5Come
Say, the light on the left of it（Such as E2D2、E3D3、E4D4）It is just scanned, information is more accurate, can immediately obtains and use,
And the light on the right side of it（Such as E6D6、E7D7、E8D8）, the result that then previous frame is scanned, therefore in view of the motion of touch objects, need
Expand on the basis of before, to ensure its accuracy.After the scan is completed, it is necessary to be checked to right side light, such as send out
It is now inconsistent with prediction, scan line need to be processed.
As shown in figure 5, the present embodiment also discloses a kind of heuristic quick scanning system for infrared screen, including master control
Module, transmitter module, receiver module and signal processing module, the main control module respectively with the transmitter module, the reception
Module and the signal processing module are electrically connected；The transmitter module includes emission controlling unit and the hair containing multiple transmitters
Transmitter array, the receiver module includes the receiver array containing reception control unit and multiple receivers；The main control module
Signal output part respectively with the signal input part and the signal input part of the reception control unit of the emission controlling unit
It is connected, the signal output part of the emission controlling unit is connected with the signal input part of the transmitter, it is described to receive control list
The signal output part of unit is connected with the signal input part of the receiver, at the signal output part of the receiver and the signal
The signal input part for managing module is connected, the signal input part of the signal output part of the signal processing module and the main control module
It is connected；
The emission controlling unit, for gating the transmitter；The reception control unit, for gating the receiver；
The transmitter is used to launch light to the receiver, and the receiver is used to receive the light of the transmitter transmitting
Line, forms some light between the transmitter and the receiver；
The signal processing module, for receiving and processing the signal of the receiver output, and treated signal is sent
To the main control module；
The main control module, presets complete scanning light net, and the complete scanning light net is included in transmitter and is connect with described
Receive some light formed between device；Limited bar light in the control scanning some light, the limited bar light
Launched and be parallel to each other by the transmitter being disposed adjacent, and according to the limited bar light, judge the limited bar light, transmitting
The region formed between the transmitter of the limited bar light and the receiver of the reception limited bar light, the region
Quadrangle, specially rectangle are shaped as, if there are touch objects to block, if it is not, then skipping sweeping to other light in the region
Retouch.
Embodiment 2
As shown in figure 3, as different from Example 1, limited bar light in the present embodiment receiver and hair corresponding thereto
The quadrilateral area of formation is shaped as parallelogram between emitter.
During scanning, the limited bar light in some light is scanned first, such as described limited bar light is by E3、E4、
E5、E6And E7Transmitting, and the E being parallel to each other3D1、E4D2、E5D3、E6D4And E7D5, judge E3D1、E4D2、E5D3、E6D4And E7D5It is
It is no to be blocked by touch objects, if E3D1、E4D2、E5D3、E6D4And E7D5Do not blocked by touch objects, then can determine that E3D1、E4D2、
E5D3、E6D4And E7D5With transmitter E3、E4、E5、E6、E7And receiver D1、D2、D3、D4、D5Between formed parallelogram
Region E3D1D5 E7There is no touch objects to block, as parallelogram region E3D1D5 E7In the case of there is no touch objects to block, can be with
Skip to other light in the parallelogram region, such as E4D1、E5D5、E5D2、E4D4、E4D5Etc. scanning, can be significantly
Save sweep time.
Continue as shown in figure 3, for some emission lamp, such as E5（Each transmitter scanning correspondence 7 can such as be preset
Individual receiver, it is possible to set E5Correspondence scanning D2-D8, naturally it is also possible to set E5The receiver of the non-adjacent setting of correspondence scanning,
The present embodiment is with E5Correspondence scanning D2-D8As a example by illustrate）For, the light of its transmitting is E5D2、E5D3、E5D4、E5D5、
E5D6、E5D7And E5D8If, E5D2、E5D3、E5D4、E5D5、E5D6、E5D7Or E5D8There is one in the light for being passed through（Contain）Above by
Block, then E5D2、E5D3、E5D4、E5D5、E5D6、E5D7Or E5D8Need scanned.In the present embodiment, because E5D2、E5D4With
E5D5In parallelogram region E3D1D5 E7It is interior, when it is determined that parallelogram region E3D1D5 E7Interior no touch objects are blocked
When, can skip to E5D2、E5D4And E5D5Scanning, if E8D6It is blocked, then explanation where there is touch objects, due to E5D6、
E5D7、E5D8Can be through E7D7, therefore, E5D6、E5D7And E5D8Need scanned.
Therefore, for emission lamp E5For, it is necessary to scanning line be only E5D6、E5D7And E5D8Three lines.
As shown in figure 5, the present embodiment also discloses a kind of heuristic quick scanning system for infrared screen, including master control
Module, transmitter module, receiver module and signal processing module, the main control module respectively with the transmitter module, the reception
Module and the signal processing module are electrically connected；The transmitter module includes emission controlling unit and the hair containing multiple transmitters
Transmitter array, the receiver module includes the receiver array containing reception control unit and multiple receivers；The main control module
Signal output part respectively with the signal input part and the signal input part of the reception control unit of the emission controlling unit
It is connected, the signal output part of the emission controlling unit is connected with the signal input part of the transmitter, it is described to receive control list
The signal output part of unit is connected with the signal input part of the receiver, at the signal output part of the receiver and the signal
The signal input part for managing module is connected, the signal input part of the signal output part of the signal processing module and the main control module
It is connected；
The emission controlling unit, for gating the transmitter；The reception control unit, for gating the receiver；
The transmitter is used to launch light to the receiver, and the receiver is used to receive the light of the transmitter transmitting
Line, forms some light between the transmitter and the receiver；
The signal processing module, for receiving and processing the signal of the receiver output, and treated signal is sent
To the main control module；
The main control module, presets complete scanning light net, and the complete scanning light net is included in transmitter and is connect with described
Receive some light formed between device；Limited bar light in the control scanning some light, the limited bar light
Launched and be parallel to each other by the transmitter being disposed adjacent, and according to the limited bar light, judge the limited bar light, transmitting
The region formed between the transmitter of the limited bar light and the receiver of the reception limited bar light, the region
Quadrangle, specially parallelogram are shaped as, if there are touch objects to block, if it is not, then skipping to other light in the region
The scanning of line.
Embodiment 3
As shown in figure 4, from unlike embodiment 1 and embodiment 2, limited bar light in the present embodiment connecing corresponding thereto
Being shaped as the quadrilateral area formed between receipts device and transmitter is trapezoidal.
During scanning, the limited bar light in some light is scanned first, such as described limited bar light is by E3、E4、E5
And E6Transmitting, and the E being not parallel to each other3D2、E3D3、E4D4、E5D5、E6D6And E6D7, judge E3D2、E3D3、E4D4、E5D5 、E6D6
And E6D7Whether blocked by touch objects, if E3D2、E3D3、E4D4、E5D5、E6D6And E6D7Do not blocked by touch objects, then can determine that
E3D2、E3D3、E4D4、E5D5、E6D6And E6D7With transmitter E3、E4、E5、E6And receiver D2、D3、D4、D5、D6、D7Between formed
Trapezoid area E3D2D7 E6There is no touch objects to block, as trapezoid area E3D2D7 E6In the case of there is no touch objects to block, can be with
Skip to trapezoidal other interior light, such as E3D5、E4D6、E3D7、E5D3、E6D4Etc. scanning, when can greatly save scanning
Between.
Continue as shown in figure 4, for some emission lamp, such as E5（The scanning of each transmitter can such as be preset right
Answer 7 receivers, it is possible to set E5Correspondence scanning D2-D8, naturally it is also possible to set E5The reception of the non-adjacent setting of correspondence scanning
Device, the present embodiment is with E5Correspondence scanning D2-D8As a example by illustrate）For, the light of its transmitting is E5D2、E5D3、E5D4、E5D5、
E5D6、E5D7And E5D8If, E5D2、E5D3、E5D4、E5D5、E5D6、E5D7Or E5D8There is one in the light for being passed through（Contain）Above by
Block, then E5D2、E5D3、E5D4、E5D5、E5D6、E5D7Or E5D8Need scanned.In the present embodiment, because E5D2、E5D3、
E5D4、E5D5、E5D6、E5D7In trapezoid area E3D2D7 E6It is interior, when it is determined that trapezoid area E3D2D7 E6There is no touch objects to block
When, can skip to E5D2、E5D3、E5D4、E5D5、E5D6And E5D7Scanning.If E7D7It is blocked, because E5D8Need through
E7D7, therefore E5D8Need scanned.
Therefore, for emission lamp E5For, it is necessary to scanning line be only E5D5And E5D8Two lines.
As shown in figure 5, the present embodiment also discloses a kind of heuristic quick scanning system for infrared screen, including master control
Module, transmitter module, receiver module and signal processing module, the main control module respectively with the transmitter module, the reception
Module and the signal processing module are electrically connected；The transmitter module includes emission controlling unit and the hair containing multiple transmitters
Transmitter array, the receiver module includes the receiver array containing reception control unit and multiple receivers；The main control module
Signal output part respectively with the signal input part and the signal input part of the reception control unit of the emission controlling unit
It is connected, the signal output part of the emission controlling unit is connected with the signal input part of the transmitter, it is described to receive control list
The signal output part of unit is connected with the signal input part of the receiver, at the signal output part of the receiver and the signal
The signal input part for managing module is connected, the signal input part of the signal output part of the signal processing module and the main control module
It is connected；
The emission controlling unit, for gating the transmitter；The reception control unit, for gating the receiver；
The transmitter is used to launch light to the receiver, and the receiver is used to receive the light of the transmitter transmitting
Line, forms some light between the transmitter and the receiver；
The signal processing module, for receiving and processing the signal of the receiver output, and treated signal is sent
To the main control module；
The main control module, presets complete scanning light net, and the complete scanning light net is included in transmitter and is connect with described
Receive some light formed between device；Limited bar light in the control scanning some light, the limited bar light
By the transmitter transmitting being disposed adjacent and each other not in parallel relation, and according to the limited bar light, judge described
Formed between the receiver of limited bar light, the transmitter for launching the limited bar light and the reception limited bar light
Region, the region is shaped as quadrangle, specially trapezoidal, if to have touch objects to block, if it is not, then skipping in the region
Other light scanning.
Heuristic fast scanning method and system for infrared screen of the invention, has the advantages that：The present invention
Complete scanning light net is first preset in the main control module of infrared screen, the complete scanning light net is included in transmitter and institute
The some light formed between receiver are stated, the limited a small amount of light in some light is scanned, judges that this is limited
Bar light, the transmitter for launching the limited bar light and the region formed between the receiver of the limited bar light is received, be
It is no to there are touch objects to block, if the region does not have touch objects to block, other in the region in addition to above-mentioned limited bar light
Light, is not required to be scanned, i.e. the present invention can be easy to judge and to remove some useless by the information that scans before
Scan line（Such as except other light of the limited bar light in above-mentioned zone）, in scanning, these can be skipped true
Fixed useless scan line, greatly reduces sweep time, improves sweep speed.
Above disclosed is only several preferred embodiments of the invention, can not limit the present invention's with this certainly
Interest field, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (9)
1. a kind of heuristic fast scanning method for infrared screen, it is characterised in that comprise the following steps：
S1, complete scanning light net is preset in the main control module of infrared screen, the complete scanning light net is included in transmitting
The some light formed between device and the receiver；
The limited bar light in some light in S2, the scanning step S1, according to the limited bar light, judges described
Formed between the receiver of limited bar light, the transmitter for launching the limited bar light and the reception limited bar light
Region, if there are touch objects to block, if it is not, then skipping the scanning to other light in the region.
2. the heuristic fast scanning method for infrared screen according to claim 1, it is characterised in that
The step S2 is further comprising the steps：
The limited bar light in some light in S201, the scanning step S1, the limited bar light is by being disposed adjacent
Transmitter launched；
S202, judge whether the limited bar light in the step S201 there are touch objects to block, if the limited bar light does not have
There are touch objects to block, then judge the limited bar light, launch the transmitter of the limited bar light and receive described limited
The region formed between the receiver of bar light does not have touch objects to block；
S203, skip scanning to other light in the region in the step S202.
3. the heuristic fast scanning method for infrared screen according to claim 2, it is characterised in that the step
The region in S202 is shaped as quadrangle.
4. the heuristic fast scanning method for infrared screen according to any one claim in claim 1-3,
Characterized in that, also including the step of presetting scanning rule before the step S1, the default scanning rule is specially：It is each
Individual transmitter scans n transmitter, i.e. the light of each transmitter transmitting is received by n receiver.
5. the heuristic fast scanning method for infrared screen according to claim 4, it is characterised in that the step S1
It is before further comprising the steps of：Judge whether it is multipoint operation, and it is determined that be multipoint operation situation enter the step S1.
6. a kind of heuristic quick scanning system for infrared screen, it is characterised in that including main control module, transmitter module, connect
Receive module and signal processing module, the main control module respectively with the transmitter module, the receiver module and the signal at
Reason module electrical connection；The transmitter module includes emission controlling unit and the transmitter array containing multiple transmitters, described to connect
Receiving module includes the receiver array containing reception control unit and multiple receivers；
The emission controlling unit, for gating the transmitter；The reception control unit, for gating the receiver；
The transmitter is used to launch light to the receiver, and the receiver is used to receive the light of the transmitter transmitting
Line；
The signal processing module, for receiving and processing the signal of the receiver output, and treated signal is sent
To the main control module；
The main control module, presets complete scanning light net, and the complete scanning light net is included in transmitter and is connect with described
Receive some light formed between device；Limited bar light in the control scanning some light, and according to described limited
Bar light, judges the limited bar light, launches the transmitter of the limited bar light and receive the limited bar light
The region formed between receiver, if there are touch objects to block, if it is not, then skipping the scanning to other light in the region.
7. the heuristic quick scanning system for infrared screen according to claim 6, it is characterised in that the master control mould
The signal output part of block respectively with the signal input part and the signal input of the reception control unit of the emission controlling unit
End is connected, and the signal output part of the emission controlling unit is connected with the signal input part of the transmitter, described to receive control
The signal output part of unit is connected with the signal input part of the receiver, the signal output part of the receiver and the signal
The signal input part of processing module is connected, the signal input of the signal output part of the signal processing module and the main control module
End is connected.
8. the heuristic quick scanning system for infrared screen according to claim 6 or 7, it is characterised in that described to have
Limit bar light is launched by the transmitter being disposed adjacent.
9. the heuristic quick scanning system for infrared screen according to claim 8, it is characterised in that the region
It is shaped as quadrangle.
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| CN201611249514.6A CN106814920A (en) | 2016-12-29 | 2016-12-29 | A kind of heuristic fast scanning method and system for infrared screen |
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| CN201611249514.6A CN106814920A (en) | 2016-12-29 | 2016-12-29 | A kind of heuristic fast scanning method and system for infrared screen |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433557A (en) * | 1999-12-02 | 2003-07-30 | 伊罗接触系统公司 | Apparatus and method to improve resolution of infrared touch systems |
| CN101162417A (en) * | 2006-10-13 | 2008-04-16 | 北京汇冠新技术有限公司 | Method for improving infrared touch screen response speed |
| CN101387931A (en) * | 2008-10-14 | 2009-03-18 | 贺伟 | Infrared touch screen multi-point identification method |
| US20090244018A1 (en) * | 2008-03-28 | 2009-10-01 | Ching-Chang Lin | Touch panel module and method for determining position of touch point on touch panel |
| CN101551729A (en) * | 2009-05-13 | 2009-10-07 | 广东威创视讯科技股份有限公司 | Infrared touch scanning method and control device, infrared touch system of the same |
| CN103761013A (en) * | 2014-02-17 | 2014-04-30 | 广州市泰奇克光电科技有限公司 | Random skipping type local area detecting locating method for infrared screen |
-
2016
- 2016-12-29 CN CN201611249514.6A patent/CN106814920A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1433557A (en) * | 1999-12-02 | 2003-07-30 | 伊罗接触系统公司 | Apparatus and method to improve resolution of infrared touch systems |
| CN101162417A (en) * | 2006-10-13 | 2008-04-16 | 北京汇冠新技术有限公司 | Method for improving infrared touch screen response speed |
| US20090244018A1 (en) * | 2008-03-28 | 2009-10-01 | Ching-Chang Lin | Touch panel module and method for determining position of touch point on touch panel |
| CN101387931A (en) * | 2008-10-14 | 2009-03-18 | 贺伟 | Infrared touch screen multi-point identification method |
| CN101551729A (en) * | 2009-05-13 | 2009-10-07 | 广东威创视讯科技股份有限公司 | Infrared touch scanning method and control device, infrared touch system of the same |
| CN103761013A (en) * | 2014-02-17 | 2014-04-30 | 广州市泰奇克光电科技有限公司 | Random skipping type local area detecting locating method for infrared screen |
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| CB02 | Change of applicant information |
Address after: 100193 No. 10 Wangdong Road, Haidian District, Beijing Applicant after: BEIJING IRTOUCH SYSTEMS Co.,Ltd. Applicant after: Three wisdom education Polytron Technologies Inc. Address before: 100094 No. 10 Wangdong Road, Haidian District, Beijing Applicant before: BEIJING IRTOUCH SYSTEMS Co.,Ltd. |
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| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20170609 |