CN106557209B - Processing method, device and the terminal device of infrared touch panel touching signals - Google Patents
Processing method, device and the terminal device of infrared touch panel touching signals Download PDFInfo
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- CN106557209B CN106557209B CN201610970528.0A CN201610970528A CN106557209B CN 106557209 B CN106557209 B CN 106557209B CN 201610970528 A CN201610970528 A CN 201610970528A CN 106557209 B CN106557209 B CN 106557209B
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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
Abstract
The embodiment of the invention discloses processing method, device and the terminal devices of a kind of infrared touch panel touching signals, wherein the method includes acquiring the infrared touching signals parameter value of each optical path in the infrared each scanning direction of touch frame；According to the infrared touching signals parameter value of optical path each in each scanning direction, the minimum signal parameter value of all touch points and each touch point in present scanning cycle is determined；According to the variation tendency of the minimum signal parameter value of each touch point in continuous multiple scan periods, the output mode of each touch point in present scanning cycle is determined.Due to the variation tendency of the infrared touching signals parameter value of touch point within continuous multiple scan periods, it can reflect out the dynamic change state of user's touch action, therefore, it can accurately judge that the touch of user is intended to according to the infrared touching signals parameter value of touch point in continuous multiple scan periods, and then reduce infrared touch panel and triggered sensitive and false triggering probability.
Description
Technical field
The present invention relates to technical field of touch control, processing method, dress more particularly to a kind of infrared touch panel touching signals
It sets and terminal device.
Background technique
A kind of human-computer interaction component of the infrared touch panel as close friend, is widely used in each class of electronic devices.It is infrared
Touch screen structure is simple, usually installs an infrared touch frame in display screen periphery, infrared touch frame surrounding includes infrared hair
Penetrate pipe and infrared receiving tube.
Figure 1A is a kind of structural schematic diagram of infrared touch frame in terminal device.As shown in Figure 1A, in infrared touch frame
Infrared receiving tube 101 is evenly distributed on two adjacent sides of display screen 104, and infrared transmitting tube 102 is evenly distributed on display
The adjacent side of the another two of screen 104.When infrared touch frame works, infrared transmitting tube 102 emits to infrared receiving tube 101 in real time
The infrared ray 103 of infrared ray 103, intersection forms infrared light net.When user touches the display screen of terminal device, to corresponding position
Infrared ray formation block, processor positions user touch location according to the variation of the infrared ray 103 received.
Figure 1B is another structural schematic diagram of infrared touch frame in terminal device.As shown in Figure 1B, setting is receiving PCB
Infrared receiving tube 101 on plate all has certain height with the infrared transmitting tube 102 being arranged on transmitting pcb board, when infrared
When transmitting tube 102 emits infrared ray 103 to infrared receiving tube 101, can be formed in the top of display screen 104 has certain altitude
Touch-responsive areas 105, it is generally the case that user just completes touch action after touching display screen 104.But due to touching
Response region 105 is touched with certain height, so that user can cause infrared ray 103 before touching display screen 104
It is a degree of to block, and then the handled sensitive and false triggering of infrared touch panel may be caused.For example, when user wants touching
When touching region A, arrow direction of the finger 106 of user in Figure 1B enters touch-responsive areas 105, in the finger 106 of user
When being moved to the surface of region B, to the infrared ray at the B of region cause it is a degree of block, if processor is according at this time
The variation of the infrared ray received positions user touch location, can in advance by the touch location of user in region B,
And then cause the handled sensitive and false triggering of infrared touch panel.
Summary of the invention
Processing method, device and the terminal device of a kind of infrared touch panel touching signals are provided in the embodiment of the present invention,
To solve the problems, such as the handled sensitive and false triggering of infrared touch panel in the prior art.
In a first aspect, the embodiment of the invention provides a kind of processing method of infrared touch panel touching signals, the method
It include: to acquire the infrared touching signals parameter of each optical path in each scanning direction of infrared touch frame in present scanning cycle
Value；According to the infrared touching signals parameter value of each optical path in each scanning direction, the institute in present scanning cycle is determined
There is the minimum signal parameter value of touch point and each touch point, the minimum signal parameter value of the touch point is and the touching
Touch a little that there are infrared touching signals parameter values the smallest in all optical paths of intersection；According to continuous more before present scanning cycle
The variation tendency of the minimum signal parameter value of each touch point in a scan period, determines each touch point in present scanning cycle
Output mode, wherein continuous multiple scan periods include present scanning cycle.
Second aspect, the embodiment of the invention provides a kind of output mode determining device of infrared touch panel, described devices
Including first processor, first memory and the first communication interface, the first processor, the first memory and described
One communication interface is connected by communication bus；First communication interface, for receiving infrared touching signals parameter value, and to defeated
Responding device sends touch point information out, and the touch point information includes the output mode of touch point；The first memory is used
In storage program code；The first processor for reading the program code stored in the memory, and executes above-mentioned
Method described in one side.
The third aspect, the embodiment of the invention provides a kind of output response device of infrared touch panel, described device includes
Second processor, second memory and the second communication interface, the second processor, the second memory and described second are led to
Believe that interface is connected by communication bus；Second communication interface is wrapped in the touch point information for receiving touch point information
Include the output mode of touch point；The second memory, for storing program code；The second processor, for reading
The program code stored in memory is stated, and executes step: according to the output mode of the touch point, output phase on a display screen
The responsive state answered.
Fourth aspect, the embodiment of the invention provides a kind of terminal device, the terminal device includes above-mentioned second aspect
Output response device described in the output mode determining device and the above-mentioned third aspect, first communication interface and described
The communication connection of second communication interface.
In embodiments of the present invention in view of the height of infrared transmitting tube and infrared receiving tube is to the shadow of infrared touching signals
It rings.Due to the variation tendency of the infrared touching signals parameter value of touch point within continuous multiple scan periods, can reflect out
The dynamic change state of user's touch action (such as when infrared touching signals parameter value is gradually reduced, illustrates the finger of user
Move closer to display screen；When infrared touching signals parameter value is gradually increased, illustrate that the finger of user is gradually distance from display screen；When
When infrared touching signals parameter value is constant, illustrate the finger hovering of user on the touchscreen), therefore, multiple swept according to continuous
The infrared touching signals parameter value for retouching touch point in the period can accurately judge that the touch of user is intended to, and then reduce infrared
Touch screen triggered sensitive and false triggering probability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, without creative efforts, is also possible to obtain other drawings based on these drawings.
Figure 1A is a kind of structural schematic diagram of infrared touch frame in terminal device；
Figure 1B is another structural schematic diagram of infrared touch frame in terminal device；
Fig. 2 is a kind of processing method flow diagram of infrared touch panel touching signals provided in an embodiment of the present invention；
Fig. 3 is the light path schematic diagram of infrared touch frame in a kind of Figure 1A provided in an embodiment of the present invention；
Fig. 4 is that there are state signals when touch action for infrared touch frame in a kind of Figure 1A provided in an embodiment of the present invention
Figure；
Fig. 5 is a kind of screening of the touch area shown in Fig. 4 provided in an embodiment of the present invention to optical path in each scanning direction
Keep off status diagram；
Fig. 6 is the infrared touching signals ginseng of optical path in scanning direction shown in a kind of Fig. 5-a provided in an embodiment of the present invention
Number histogram；
Fig. 7 is a kind of blocked area of the touch area shown in Fig. 4 provided in an embodiment of the present invention in each scanning direction
Domain schematic diagram；
Fig. 8 is a kind of overlaying state schematic diagram of occlusion area shown in Fig. 7 provided in an embodiment of the present invention；
Fig. 9 is the infrared touching signals parameter histogram of optical path in a kind of multiple scan periods provided in an embodiment of the present invention
Figure；
Figure 10 is that the infrared touching signals parameter of optical path in another kind multiple scan periods provided in an embodiment of the present invention is straight
Fang Tu；
Figure 11 is that the infrared touching signals parameter of optical path in another kind multiple scan periods provided in an embodiment of the present invention is straight
Fang Tu；
Figure 12 is the processing method flow diagram of another infrared touch panel touching signals provided in an embodiment of the present invention；
Figure 13 is a kind of output mode determining device structural schematic diagram of infrared touch panel provided in an embodiment of the present invention；
Figure 14 is a kind of output response apparatus structure schematic diagram of infrared touch panel provided in an embodiment of the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
The component that infrared touch panel is interacted with user during use is mainly infrared transmitting tube and infrared receiving tube.
Under normal circumstances, the surrounding of infrared touch frame includes a large amount of infrared transmitting tube and infrared receiving tube, and infrared transmitting tube is launched
After infrared ray, which can be received by corresponding infrared receiving tube.In turn, a large amount of infrared transmitting tube and infrared receiving tube
By receiving and dispatching infrared ray, the infrared ray net of an intersection can be formed on the screen.When the user touches the screen, finger can incite somebody to action
The infrared ray of designated position blocks, and touch point coordinate can be calculated in the computing system of infrared touch frame by algorithm.
But infrared transmitting tube and infrared receiving tube have certain height, the finger of user touch display screen it
Before infrared ray can be caused it is a degree of block, due to not accounting for infrared transmitting tube and infrared receiving tube in existing algorithm
Height influence that infrared ray is blocked, and then the handled sensitive and false triggering of infrared touch panel may be caused.
In response to this, the embodiment of the invention provides a kind of processing methods of infrared touch panel touching signals.Fig. 2 is
The processing method flow diagram of a kind of infrared touch panel touching signals provided in an embodiment of the present invention, as shown in Fig. 2, this method
It mainly includes the following steps that.
Step S201: in present scanning cycle, the infrared of each optical path in each scanning direction of infrared touch frame is acquired
Touching signals parameter value.
Optical path involved in the embodiment of the present invention refers to what infrared transmitting tube and/or infrared receiving tube transmitting-receiving infrared ray were formed
Optical path, infrared touching signals parameter value can refer to the transmission power of infrared transmitting tube, infrared receiving tube reception power, infrared connect
Signal strength, signal voltage in closed tube etc. can be joined with the various types of signal of the infrared touching signals in the infrared touch frame of quantificational expression
Numerical value.
For infrared transmitting tube, infrared ray may be emitted towards different angles.When infrared transmitting tube is towards different
It when angle emits infrared ray, has multiple and different infrared receiving tubes and receives infrared ray, then infrared transmitting tube may be with
A plurality of optical path is formed between multiple and different infrared receiving tubes, each angle in a plurality of optical path is known as a scanning direction.
Fig. 3 is the light path schematic diagram of infrared touch frame in a kind of Figure 1A provided in an embodiment of the present invention, with infrared in Fig. 3
It is illustrated for the long side of touch frame and two scanning directions (two launch angles) of short side.For the ease of observation, in Fig. 3
In the optical path of each scanning direction is decomposed.Wherein, Fig. 3-a is the infrared transmitting tube and infrared receiving tube positioned at long side
Light path schematic diagram in the first scanning direction；Fig. 3-b is infrared transmitting tube and infrared receiving tube positioned at long side in the second scanning
The light path schematic diagram in direction；Fig. 3-c be positioned at short side infrared transmitting tube and infrared receiving tube the first scanning direction optical path
Schematic diagram；Fig. 3-d be positioned at short side infrared transmitting tube and infrared receiving tube the second scanning direction light path schematic diagram.
As shown in figure 3, each scanning direction includes one group of parallel light path with slope in infrared touch frame, such as
It include 13 parallel optical paths in scanning direction shown in Fig. 3-a.When the user touches the screen, finger can be to each scanning direction
Optical path cause it is certain block so that the infrared touching signals parameter value of corresponding optical path can change.Specifically,
When the optical path between infrared transmitting tube and infrared receiving tube is not blocked, the first infrared receiving tube can receive some strength
Infrared signal；When optical path is blocked, infrared signal strength reduction that the first infrared receiving tube receives.Based on the principle, lead to
The infrared touching signals parameter value that specific algorithm analyzes each optical path in each scanning direction is crossed, and then determines the seat of touch point
The information such as mark, width and height.
Step S202: it according to the infrared touching signals parameter value of each optical path in each scanning direction, determines current
The minimum signal parameter value of all touch points and each touch point in scan period.
Under normal conditions, a reference value of infrared touching signals is preset in system, when which is that optical path is not blocked
The size of infrared touching signals.The infrared touching signals parameter of each optical path in collecting each scanning direction of infrared touch frame
After value, the infrared touching signals parameter value of each optical path in each scanning direction is compared with preset a reference value respectively
Compared with, and then determine in each scanning direction and block optical path.
Fig. 4 is that there are state signals when touch action for infrared touch frame in a kind of Figure 1A provided in an embodiment of the present invention
Figure, as shown in figure 4, will form certain touch area 107, touch area in infrared touch frame when there are touch action
107 reflect position of the finger in touch screen.It is red since infrared ray cannot pass through finger or infrared ray after finger
The signal strength of outside line will cause a degree of decaying, and therefore, all optical paths by touch area 107 will receive shadow
It rings, Fig. 5 is a kind of occlusion state of the touch area shown in Fig. 4 provided in an embodiment of the present invention to optical path in each scanning direction
Schematic diagram.Wherein, Fig. 5-a is that the occlusion state of optical path in the first scanning direction of long side is illustrated in touch area shown in Fig. 4
Figure；Fig. 5-b is occlusion state schematic diagram of the touch area shown in Fig. 4 to optical path in the second scanning direction of long side；Fig. 5-c is
Occlusion state schematic diagram of the touch area shown in Fig. 4 to optical path in the first scanning direction of short side；Fig. 5-d is shown in Fig. 4
Occlusion state schematic diagram of the touch area to optical path in the second scanning direction of short side.
In embodiments of the present invention, respectively by the infrared touching signals parameter value of optical path each in each scanning direction and pre-
If parameter reference value carry out difference operation, when its difference be greater than certain parameter threshold when, determine the optical path be block optical path.
Fig. 6 is the infrared touching signals ginseng of optical path in scanning direction shown in a kind of Fig. 5-a provided in an embodiment of the present invention
Number histogram, shows infrared touching signals parameter value, parameter reference value q1 and the parameter threshold in optical path 5-9 in Fig. 5-a
Δ q, wherein, will when the difference of the infrared touching signals parameter value of certain optical path and parameter reference value q1 are greater than parameter threshold Δ q
The optical path is determined as blocking optical path.That is, when the infrared touching signals parameter value of certain optical path is less than parameter q2, by this
Optical path is determined as blocking optical path.As shown in fig. 6, in the first scanning direction of long side, the infrared touching signals parameter of optical path 6-8
Value is less than parameter value q2, then blocks optical path using optical path 6-8 as the first scanning direction of long side.Based on same principle,
In scanning direction shown in Fig. 5-b, determine that optical path 4-7 is to block optical path；In the scanning direction shown in Fig. 5-c, optical path is determined
4-6 is to block optical path；In the scanning direction shown in Fig. 5-d, determine that optical path 3-5 is to block optical path.
Determine each scanning direction block optical path after, with first in each scanning direction block optical path be block
The beginning boundary in region, the last item blocks the termination boundary that optical path is occlusion area, and then determines in each scanning direction
Occlusion area.By taking Fig. 5-a as an example, in first scanning direction of long side, the beginning boundary of occlusion area is optical path 6, is blocked
The termination boundary in region is optical path 8, then the region between optical path 6 and optical path 8 is the occlusion area of first scanning direction,
As shown in the dash area in Fig. 7-a, since the coverage extent that finger blocks optical path to each item is different, so that each item
The infrared touching signals parameter value for blocking optical path is different, in embodiments of the present invention, to block the smallest infrared touch-control in optical path
Infrared touching signals parameter value of the signal parameter value as occlusion area.It such as include optical path in occlusion area shown in Fig. 6
6,7 and 8 this three block optical path, block optical path 7 infrared touching signals parameter value be long side the first scanning direction minimum
Signal parameter value min then joins the infrared touching signals parameter value for blocking optical path 7 as the infrared touching signals of the occlusion area
Numerical value.Based on same principle, the occlusion area and corresponding occlusion area of determining the other three scanning direction is infrared respectively
Touching signals parameter value.Wherein, the occlusion area of the second scanning direction of long side is as shown in the dash area in Fig. 7-b；Short side
The first scanning direction occlusion area as shown in the dash area in Fig. 7-c；The occlusion area of second scanning direction of short side
As shown in the dash area in Fig. 7-d.
After the occlusion area for obtaining each scanning direction, the occlusion area of each scanning direction is overlapped, it will be each
The intersection area of the occlusion area of a scanning direction is as touch point.It is obtained after occlusion area shown in Fig. 7 is overlapped
Intersection area 108 is as shown in Figure 8.Wherein, intersection area 108 be touch point, by the barycentric coodinates of intersection area 108, width and
Coordinate, width and height of the height respectively as touch point.In addition, infrared touching signals the smallest in each occlusion area are joined
Minimum signal parameter value of the numerical value as touch point.It is easily understood that the minimum signal parameter value of touch point is and the touching
Touch a little that there are infrared touching signals parameter values the smallest in all optical paths of intersection.
Step S203: according to the minimum signal of each touch point in multiple scan periods continuous before present scanning cycle
The variation tendency of parameter value determines the output mode of each touch point in present scanning cycle, wherein described continuous multiple to sweep
Retouching the period includes present scanning cycle.
One scan period refers to the infrared touching signals for having acquired each optical path in each scanning direction of infrared touch frame
The period of parameter value.During user touches screen, since point, finger are dynamic changes in different times, therefore
The infrared touching signals parameter value of each optical path is different in each scanning direction in the different scan periods.For example, when user sends out
When playing touch action, finger moves closer to screen, then the minimum signal parameter value of touch point is gradually reduced；When user abandons touching
When movement, finger is gradually distance from screen, then the minimum signal parameter value of touch point is gradually increased；When the finger of user hovers over screen
When curtain top, the minimum signal parameter value of touch point floats in a certain range.The touch of combination user of the embodiment of the present invention
Habit, comprehensively considers the output mode that the infrared touching signals parameter value in multiple scan periods determines touch point, below to each
Kind situation is illustrated respectively.
As shown in Figure 1B, since the touch-responsive areas of infrared touch frame has certain height, between finger and screen
Distance it is closer, finger is higher to the coverage extent of infrared ray, therefore, when the user touches the screen, the minimum signal of touch point
Parameter value can be gradually reduced, and be based on the principle, can be determined user by the variation tendency of the minimum signal parameter value of touch point
Touch be intended to.
It should be pointed out that when scanning direction only one when, then the minimum signal parameter value of the scanning direction i.e. touch
The minimum signal parameter value of point；When the quantity of scanning direction is multiple, need the minimum signal parameter of multiple scanning directions
Value is compared, using minimum value therein as the minimum signal parameter value of touch point.In embodiments of the present invention, in order to describe
Succinctly, it is illustrated with the variation tendency of the infrared touching signals parameter value of optical path in a scanning direction.
Fig. 9 is the infrared touching signals parameter histogram of optical path in a kind of multiple scan periods provided in an embodiment of the present invention
Figure.Infrared touching signals ginseng of a plurality of optical path in a scanning direction in four scan period T1-T4 is shown in FIG. 9
Numerical value, wherein scan period T4 is present scanning cycle, and the scan period, T1-T4 was continuous in time.As shown in figure 9, scanning
In cycle T 1-T4, the infrared touching signals parameter value of optical path 3 is minimum, therefore can be by the infrared touching signals parameter value of optical path 3
Minimum signal parameter value min as corresponding touch point.Due in scan period T1-T4, the minimum signal parameter of touch point
Value min is gradually reduced, it is thus determined that the output mode of the touch point is touch mode.
It is additionally provided with touch-responsive threshold value t1 in a kind of preferred embodiment of the present invention, specifically: when touch point is continuous
Minimum signal parameter value in multiple scan periods is gradually reduced, and the minimum signal parameter value in present scanning cycle is less than
When preset touch-responsive threshold value t1, determine that the output mode of the touch point is touch mode.It is provided with touch-responsive threshold
The purpose of value t1 is, only when close enough at a distance from the finger of user is between screen, just determines the output mould of the touch point
Formula is touch mode, prevents from judging by accident.
The judgement mechanism of the technical program is that, when user wants to touch screen, finger is gradually leaned on by the top of screen
Nearly corresponding position of the screen until clicking screen have passed through multiple scan periods in the process, due to user finger by
It is gradually close to screen, therefore the minimum signal parameter value of touch point is gradually reduced.In addition, it is handled sensitive in order to prevent, only
The touch-responsive of system is just triggered when close enough at a distance from the finger of user is between screen, therefore pre- in embodiments of the present invention
If touch-responsive threshold value t1.
Certainly it is also likely to be present another situation, when user's finger is close to screen, finds the position that finger will be touched
It sets the position for wanting to touch with user not being inconsistent, finger lifts on the screen at this time.It equally can be to phase during finger lifts
Answer the infrared ray of optical path cause it is a degree of block, in this case if system output touch-responsive obviously will cause mistake
Triggering.
It is in embodiments of the present invention, described according to multiple scannings continuous before present scanning cycle for this problem
The minimum signal parameter value of each touch point, determines the output mode of each touch point in present scanning cycle, also wraps in period
Include: when any touch point in present scanning cycle minimum signal parameter value within continuous multiple scan periods gradually
When increase, determine that the touch point is Null Spot.
Figure 10 is that the infrared touching signals parameter of optical path in another kind multiple scan periods provided in an embodiment of the present invention is straight
Fang Tu.Infrared touch-control letter of a plurality of optical path in a scanning direction in four scan period T5-T8 is shown in FIG. 10
Number parameter value, wherein scan period T8 is present scanning cycle, and the scan period, T5-T8 was continuous in time.As shown in Figure 10, exist
In scan period T5-T8, the infrared touching signals parameter value of optical path 3 is minimum, therefore the infrared touching signals of optical path 3 can be joined
Minimum signal parameter value min of the numerical value as corresponding touch point.Due in scan period T5-T8, the minimum signal of touch point
Parameter value min is gradually increased, it is thus determined that the touch point is Null Spot.
It is additionally provided with lift response threshold value t2 in a kind of preferred embodiment of the present invention, specifically: when touch point is continuous
Minimum signal parameter value in multiple scan periods is gradually increased, and the minimum signal parameter value in present scanning cycle is greater than
When preset lift response threshold value t2, determine that the touch point is Null Spot.Wherein, the purpose that lift response threshold value t2 is arranged exists
In only just determining that the touch point is Null Spot, prevents from judging by accident when remote enough at a distance from the finger of user is between screen.
In embodiments of the present invention due to consideration that the height of infrared transmitting tube and infrared receiving tube is to infrared touching signals
The influence of parameter value, therefore at a distance from can determining finger between screen by the size of infrared touching signals parameter value, in turn
The suspension triggering mode of touch point is determined.
Figure 11 is that the infrared touching signals parameter of optical path in another kind multiple scan periods provided in an embodiment of the present invention is straight
Fang Tu.Infrared touch-control letter of a plurality of optical path in a scanning direction in four scan period T9-T12 is shown in FIG. 11
Number parameter value, wherein scan period T12 is present scanning cycle, and the scan period, T9-T12 was continuous in time.As shown in figure 11,
In scan period T9-T12, the infrared touching signals parameter value of optical path 3 is minimum, therefore the infrared touch-control of optical path 3 can be believed
Number minimum signal parameter value min of the parameter value as corresponding touch point.Due in scan period T9-T12, the minimum of touch point
Signal parameter value min is in always between touch-responsive threshold value t1 and lift response threshold value t2, thus may determine that the touch point
Output mode be suspension triggering mode.In addition, since there is usually one touch points for suspension triggering mode, in the present invention
Suspension triggering mode must also meet condition in scan period T9-T12 in embodiment, and the quantity of touch point is one.
The judgement mechanism of the technical program is, when the finger of user is after a short time is hovered in the top of screen, determines
Corresponding touch point is suspension triggering mode, i.e., when the minimum signal parameter value of any touch point in present scanning cycle is described
When in continuous multiple scan periods in certain floating range, determine the output mode of the touch point for the triggering that suspends
Mode.
It should be pointed out that in embodiments of the present invention for ease of description, with 4 scan periods to triggering mode, nothing
Effect point and suspension triggering mode are determined that those skilled in the art can also be according to actual needs by continuous multiple scannings
Cycle set is other quantity, should all be fallen under the scope of the present invention.
In conclusion present invention thought can be summarized simply as follows three kinds of situations: first, when in present scanning cycle
The minimum signal parameter value of any touch point when being gradually reduced within continuous multiple scan periods, determine the touch
The output mode of point is touch mode；Second, when the minimum signal parameter value of any touch point in present scanning cycle is in institute
It states when being gradually increased in continuous multiple scan periods, determines that the touch point is Null Spot；Third, when in present scanning cycle
Any touch point minimum signal parameter value within continuous multiple scan periods in certain floating range when,
The output mode for determining the touch point is suspension triggering mode.
Wherein, the processing method when embodiment of the present invention is unsatisfactory for above-mentioned three kinds of situations to infrared touching signals parameter value is not
It is specifically limited, those skilled in the art can be accordingly arranged according to the actual situation, not depart from foregoing invention thought
Under the premise of, it should all fall under the scope of the present invention.For example, for the first case, when judging touch point most
When small-signal parameter value is gradually reduced but the scan period, the quantity of requirement had not been reached yet, then not output point, i.e., as this track
Without point；For second situation, when the minimum signal parameter value of touch point is gradually increased, but requirement is had not been reached yet in the scan period
Quantity when, then the touch point of a nearest scan period before exporting this track；For the third situation, when continuous more
The minimum signal parameter value of touch point is all larger than or is equal to t1 in a scan period, and is less than or equal to t2, but Current Scan
When the quantity of touch point is two or more in period, it is determined that all touch points are touch mode.
Figure 12 is the processing method flow diagram of another infrared touch panel touching signals provided in an embodiment of the present invention,
As shown in figure 12, further comprising the steps of on the basis of this method embodiment shown in Fig. 2.
Step S204: according to the output mode of the touch point, corresponding responsive state is exported on a display screen.
In the specific implementation, touch point information can be uploaded to according to format (x, y, width, height, mode) upper
Machine, wherein x, y are the coordinate of touch point, and width is the width of touch point, and height is the height of touch point, and mode is to touch
The output mode of point.Wherein, suspension reserve mode is defined as when being 0 by mode, mode is defined as suspension triggering mode when being 1,
Mode is defined as touch mode when being 2.
Host computer is parsed after receiving the data packet of upload, if the mode of touch point is 1, in the corresponding positions of screen
Output mouse suspension response is set, which refers to the position to match with the coordinate of touch point, width and height；If touching
The mode of point is 0 or 2, then in the corresponding position of screen, output touches and clicks response.
As shown from the above technical solution, the height of infrared transmitting tube and infrared receiving tube is considered in embodiments of the present invention
Influence to infrared touching signals.Due to the change of the infrared touching signals parameter value of touch point within continuous multiple scan periods
Change trend can reflect out the dynamic change state of user's touch action (such as when infrared touching signals parameter value is gradually reduced
When, illustrate that the finger of user moves closer to display screen；When infrared touching signals parameter value is gradually increased, illustrate the finger of user
It is gradually distance from display screen；When infrared touching signals parameter value is constant, illustrate the finger hovering of user on the touchscreen), therefore,
The touch of user can be accurately judged according to the infrared touching signals parameter value of touch point in continuous multiple scan periods
It is intended to, and then reduces infrared touch panel and triggered sensitive and false triggering probability.
Corresponding with the processing method of infrared touch panel touching signals provided in an embodiment of the present invention, the embodiment of the present invention is also
Provide a kind of output mode determining device of infrared touch panel and the output response device of infrared touch panel.
It is a kind of output mode determining device structural schematic diagram provided in an embodiment of the present invention, the output referring to Figure 13
Mode determining device 1300 may include: first processor 1301, first memory 1302 and the first communication interface 1303.These
Component is communicated by one or more bus, it will be understood by those skilled in the art that the structure of server shown in figure
And do not constitute a limitation of the invention, it is also possible to hub-and-spoke configuration either busbar network, can also include than diagram
More or fewer components perhaps combine certain components or different component layouts.
Wherein, first communication interface 1303, for establishing communication channel, to allow the storage equipment and its
Its equipment is communicated.Receive the user data or send user data to other equipment that other equipment hair is.
The first processor 1301, it is entirely electric using various interfaces and connection for the control centre for storing equipment
The various pieces of sub- equipment, by running or execute the software program and/or module that are stored in first memory 1302, and
The data being stored in first memory are called, to execute the various functions and/or processing data of electronic equipment.At described first
Reason device can be made of integrated circuit (Integrated Circuit, abbreviation IC), such as the IC institute group that can be encapsulated by single
At, can also by connection more identical functions or different function encapsulation IC and form.For example, first processor 1301 can
Only to include central first processor (Central Processing Unit, abbreviation CPU).In embodiments of the present invention,
CPU can be single operation core, also may include multioperation core.
The first memory 1302, for storing executing instruction for first processor 1301, first memory 1302 can
By any kind of volatibility or non-volatile memory device or their combination realization, such as static random access memory
(SRAM), electrically erasable programmable read-only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM) may be programmed
Read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.
When executing instruction in first memory 1302 is executed by first processor 1301, so that output mode determines dress
It sets 1300 and some or all of is able to carry out in embodiment illustrated in fig. 2 step.
It is a kind of output response apparatus structure schematic diagram provided in an embodiment of the present invention, the output response referring to Figure 14
Device 1400 may include: second processor 1401, second memory 1402 and the second communication interface 1403.These components pass through
One or more bus is communicated, it will be understood by those skilled in the art that the structure of server shown in figure is not constituted
Limitation of the invention, it is also possible to hub-and-spoke configuration either busbar network, can also include more or more than illustrating
Few component perhaps combines certain components or different component layouts.
Wherein, second communication interface 1403, for establishing communication channel, to allow the storage equipment and its
Its equipment is communicated.Receive the user data or send user data to other equipment that other equipment hair is.
The second processor 1401, it is entirely electric using various interfaces and connection for the control centre for storing equipment
The various pieces of sub- equipment, by running or execute the software program and/or module that are stored in second memory 1402, and
The data being stored in second memory are called, to execute the various functions and/or processing data of electronic equipment.At described second
Reason device can be made of integrated circuit (Integrated Circuit, abbreviation IC), such as the IC institute group that can be encapsulated by single
At, can also by connection more identical functions or different function encapsulation IC and form.For example, second processor 1401 can
Only to include central second processor (Central Processing Unit, abbreviation CPU).In embodiments of the present invention,
CPU can be single operation core, also may include multioperation core.
The second memory 1402, for storing executing instruction for second processor 1401, second memory 1402 can
By any kind of volatibility or non-volatile memory device or their combination realization, such as static random access memory
(SRAM), electrically erasable programmable read-only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM) may be programmed
Read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.
When executing instruction in second memory 1402 is executed by second processor 1401, so that output response device
1400 can: according to the output mode of the touch point, export corresponding responsive state on a display screen.
On the basis of above-mentioned apparatus embodiment, the embodiment of the invention also provides a kind of terminal device, the terminal devices
Including output response device shown in output mode determining device shown in Figure 13 and Figure 14, wherein first communication interface
It is communicated to connect with second communication interface.
In an alternative embodiment, shown terminal device further includes infrared touch frame, the infrared touch frame with it is described
First processor communication connection, the first processor are each in each scanning direction of infrared touch frame for periodically acquiring
The infrared touching signals parameter value of optical path.
In the specific implementation, the present invention also provides a kind of computer storage mediums, wherein the computer storage medium can store
There is program, which may include step some or all of in each embodiment of the processing method provided by the present invention when executing.Institute
The storage medium stated can for magnetic disk, CD, read-only memory (English: read-only memory, referred to as: ROM) or with
Machine storage memory (English: random access memory, referred to as: RAM) etc..
It is required that those skilled in the art can be understood that the technology in the embodiment of the present invention can add by software
The mode of general hardware platform realize.Based on this understanding, the technical solution in the embodiment of the present invention substantially or
Say that the part that contributes to existing technology can be embodied in the form of software products, which can deposit
Storage is in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that computer equipment (can be with
It is personal computer, server or the network equipment etc.) execute certain part institutes of each embodiment of the present invention or embodiment
The method stated.
Same and similar part may refer to each other between each embodiment in this specification.Implement especially for device
For example and terminal embodiment, since it is substantially similar to the method embodiment, so be described relatively simple, related place referring to
Explanation in embodiment of the method.
Invention described above embodiment is not intended to limit the scope of the present invention..
Claims (10)
1. a kind of processing method of infrared touch panel touching signals characterized by comprising
In present scanning cycle, the infrared touching signals parameter of each optical path in each scanning direction of infrared touch frame is acquired
Value；
According to the infrared touching signals parameter value of each optical path in each scanning direction, the institute in present scanning cycle is determined
There is the minimum signal parameter value of touch point and each touch point, the minimum signal parameter value of the touch point is and the touching
Touch a little that there are infrared touching signals parameter values the smallest in all optical paths of intersection；
According to the variation of the minimum signal parameter value of each touch point in multiple scan periods continuous before present scanning cycle
Trend determines the output mode of each touch point in present scanning cycle, wherein continuous multiple scan periods include working as
The preceding scan period.
2. the method according to claim 1, wherein described sweep according to continuously multiple before present scanning cycle
The variation tendency for retouching the minimum signal parameter value of each touch point in the period determines the defeated of each touch point in present scanning cycle
Mode out, comprising:
When any touch point in present scanning cycle minimum signal parameter value within continuous multiple scan periods by
Decrescence hour determines that the output mode of the touch point is touch mode.
3. the method according to claim 1, wherein described sweep according to continuously multiple before present scanning cycle
The variation tendency for retouching the minimum signal parameter value of each touch point in the period determines the defeated of each touch point in present scanning cycle
Mode out, comprising:
When any touch point in present scanning cycle minimum signal parameter value within continuous multiple scan periods by
When cumulative big, determine that the touch point is Null Spot.
4. the method according to claim 1, wherein described sweep according to continuously multiple before present scanning cycle
The variation tendency for retouching the minimum signal parameter value of each touch point in the period determines the defeated of each touch point in present scanning cycle
Mode out, comprising:
When the minimum signal parameter value of the touch point in present scanning cycle is in one within continuous multiple scan periods
When touch point quantity in fixed floating range and in present scanning cycle is one, the output mode of the touch point is determined
For suspension triggering mode.
5. method according to claim 1-4, which is characterized in that each in the determining present scanning cycle
After the output mode of touch point, further includes:
According to the output mode of the touch point, corresponding responsive state is exported on a display screen.
6. according to the method described in claim 5, it is characterized in that, the output mode according to the touch point, is showing
Corresponding responsive state is exported on screen, comprising:
When the output mode of the touch point is touch mode, the position to match on a display screen with the touch point is exported
It touches and clicks response；Alternatively,
When the output mode of the touch point is suspension triggering mode, the position that matches on a display screen with the touch point
Export mouse suspension response.
7. a kind of output mode determining device of infrared touch panel, which is characterized in that including first processor, first memory and
First communication interface, the first processor, the first memory and first communication interface are connected by communication bus；
First communication interface for receiving infrared touching signals parameter value, and sends touch point to output response device and believes
Breath, the touch point information includes the output mode of touch point；
The first memory, for storing program code；
The first processor for reading the program code stored in the memory, and is executed as appointed in claim 1-4
Method described in one.
8. a kind of output response device of infrared touch panel, which is characterized in that including second processor, second memory and second
Communication interface, the second processor, the second memory and second communication interface are connected by communication bus；
Second communication interface includes the output mode of touch point for receiving touch point information, in the touch point information；
The second memory, for storing program code；
The second processor for reading the program code stored in the memory, and is executed such as claim 5 or 6 institutes
The method stated.
9. a kind of terminal device, which is characterized in that including output mode determining device as claimed in claim 7 and claim 8
The output response device, first communication interface and second communication interface communication connection.
10. terminal device according to claim 9, which is characterized in that it further include infrared touch frame, the infrared touch frame
It is communicated to connect with the first processor, the first processor is for periodically acquiring each scanning direction of infrared touch frame
In each optical path infrared touching signals parameter value.
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| CN108415655B (en) * | 2018-02-08 | 2020-10-23 | 广州华欣电子科技有限公司 | Touch data processing method and device, all-in-one machine and storage medium |
| CN112394839B (en) * | 2020-11-20 | 2022-09-23 | 青岛海信商用显示股份有限公司 | Cursor suspension method of touch display screen and touch device |
| CN114356140B (en) * | 2021-12-31 | 2024-02-13 | 上海永亚智能科技有限公司 | Key action recognition method of infrared induction suspension key |
| CN116700584A (en) * | 2022-08-22 | 2023-09-05 | 广州众远智慧科技有限公司 | Infrared touch state data acquisition method, device, computer equipment and medium |
| CN117369668A (en) * | 2023-11-20 | 2024-01-09 | 广州众远智慧科技有限公司 | Infrared touch screen scanning method and device and infrared touch screen system |
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