CN103345360B - A kind of intelligent terminal touch screen gesture identification method - Google Patents

A kind of intelligent terminal touch screen gesture identification method Download PDF

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Publication number
CN103345360B
CN103345360B CN201310251455.6A CN201310251455A CN103345360B CN 103345360 B CN103345360 B CN 103345360B CN 201310251455 A CN201310251455 A CN 201310251455A CN 103345360 B CN103345360 B CN 103345360B
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touch
screen
gesture
intelligent terminal
firmware
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CN103345360A (en
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张强
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Abstract

The invention discloses a kind of intelligent terminal touch screen gesture identification method, comprise the following steps: (1) intelligent terminal enters holding state, touch-screen opens gesture identification function; User draws gesture on the touchscreen; (2) the current gesture of touch-screen firmware identification, judges whether touch-screen firmware can identify current gesture; If so, step (4) is then entered; If not, then step (3) is entered; (3) wake the CPU of intelligent terminal system up, start the Stroke discrimination function of CPU simultaneously, judge current gesture by Stroke discrimination function, then this gesture symbol is sent to touch-screen firmware, this gesture symbol of touch-screen firmware stores, and enter step (4); (4) wake intelligent terminal system up, light the screen of touch-screen, enter the application that this gesture is corresponding; The inventive method has gesture identification precision advantage high and low in energy consumption.

Description

A kind of intelligent terminal touch screen gesture identification method
Technical field
The invention belongs to intelligent terminal touch screen field, particularly a kind of intelligent terminal touch screen gesture identification method.
Background technology
At present, in the standby state, being touched by different gestures can waken system for some intelligent terminal, and open corresponding application, this function is waken up also referred to as the gesture identification of touch-screen simultaneously.This function needs some simple gestures of predefined, different gestures represents different functions, such as double-click twice merely waken systems, draw one " O " representative first to wake up and then open camera, draw one " △ " to represent and first wake up and then position, draw one " V " and represent and first wake up and then open electric torch had gesture identification, user just can be facilitated to enter some application set quickly and easily when intelligent terminal still goes out screen.
Traditional intelligence terminal in the standby state, the process of touch-screen gesture identification as shown in Figure 1: in the standby state, touch-screen not power-off, opens touch-screen gesture identification function to (1) intelligent terminal simultaneously; (2) gesture motion that the identification of touch-screen firmware is current; (3) if current gesture action meets the gesture symbol set in touch-screen firmware, so waken system, enters the application that gesture is corresponding simultaneously.
At present, all complete inside touch-screen firmware the identification of gesture, why doing like this is that CPU is out of service, and the chip that so just must be carried by touch-screen identifies gesture motion because intelligent terminal is when standby.But often there is following problem in the process chip of touch-screen: first is that storage space is little, touch-screen firmware identification gesture needs to obtain the finger touch information on touch-screen, because touch-screen chip-stored space is little, therefore the finger dot information of some keys can only be obtained, these key points comprise the starting point of this touch, terminal, the point of maximal value on x direction, the point of minimum value on x direction, the point of minimum value on the point of maximal value and y direction on y direction, probably judge it is what kind of gesture by these points, therefore gesture must be simple and clear, and preferably one complete, second is that processing speed is slow, and touch-screen chip all adopts single-chip microcomputer to realize due to the reason of cost, completely cannot want to match in excellence or beauty with the process chip of current intelligent machine.Due to above-mentioned two problems, cause the success ratio of touch-screen gesture identification lower, identify a lot by mistake, and compatible bad.Such as, user on the touchscreen face draws one " O ", not often prim, the stroke-starting position of this " O " and pen-down position all answer people and different, judge that gesture just may cause by touch-screen chip to identify or nonrecognition by mistake, if gesture a little complexity a bit, such as draws an X or almost with regard to None-identified out, be easy to mix up with other symbols.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art and deficiency, the intelligent terminal touch screen gesture identification method that a kind of accuracy of identification is high and low in energy consumption is provided.
Object of the present invention is achieved through the following technical solutions: a kind of intelligent terminal touch screen gesture identification method, comprises the following steps:
(1) intelligent terminal enters holding state, and touch-screen opens gesture identification function; User draws gesture on the touchscreen;
(2) the current gesture of touch-screen firmware identification, judges whether touch-screen firmware can identify current gesture;
If so, step (4) is then entered;
If not, then step (3) is entered;
(3) wake the CPU of intelligent terminal system up, start the Stroke discrimination function of CPU simultaneously, judge current gesture by Stroke discrimination function, then this gesture symbol is sent to touch-screen firmware, this gesture symbol of touch-screen firmware stores, and enter step (4);
(4) wake intelligent terminal system up, light the screen of touch-screen, enter the application that this gesture is corresponding.
Preferably, can the firmware in described step (2) in touch-screen judge identify that the process of current gesture is as follows: touch-screen firmware is by judging that the key point on touch-screen track identifies gesture symbol, if a kind of gesture symbol in the corresponding touch-screen firmware of these key points, so touch-screen firmware identifies this gesture; If two kinds or two or more symbols in the corresponding touch-screen firmware of these key points, so touch-screen firmware None-identified goes out this gesture.
Preferably, in described step (1), when carrying out gesture identification under intelligent terminal holding state, whether to have gesture touch action lower than on frequency sweeping touch-screen when waking scanning up.
Further, described step (4), when touch-screen brightens, adjustment sweep frequency is to the sweep frequency under touch-screen normal operating conditions.
Preferably, the Stroke discrimination function in described step (3) under the Stroke discrimination function of CPU and intelligent terminal system note interface is same recognition function.
Preferably, in described step (3), after waking CPU up and before waking intelligent terminal system up, touch-screen is in screen state of going out.
The present invention has following advantage and effect relative to prior art:
(1) the inventive method is under intelligent terminal holding state, when the current gesture irregularity that user draws, i.e. not this gesture symbol in firmware in touch-screen, when cannot be accurately identified current gesture, realized the accurate identification of current gesture by the Stroke discrimination function of opening intelligent terminal CPU, substantially increase the degree of accuracy of gesture identification in the inventive method.In addition because intelligent terminal CPU just opens when touch-screen firmware None-identified gesture, when touch-screen firmware can identify current gesture, without the need to opening CPU, only with lower than the frequency sweeping touch-screen waking scanning up, therefore the power consumption of inventive method is lower.
(2) after the present invention goes out current gesture by the Stroke discrimination identification of function of CPU, then this gesture symbol is sent to touch-screen firmware, this gesture symbol preserved by touch-screen firmware, when touch-screen there is again this gesture, as long as by touch-screen firmware just can Direct Recognition out, without the need to waking intelligent terminal CPU again up, reduce further the power consumption of the inventive method, and make the step of the inventive method more simply and easily realize.
(3) the present invention is before intelligent terminal CPU unlatching is rear and intelligent terminal system wakes up, and touch-screen keeps going out screen state, just lights touch-screen, reduce further power consumption of the present invention after system wake-up.The Stroke discrimination function of intelligent terminal of the present invention is identical with the Stroke discrimination function under intelligent terminal note interface of the prior art, and Stroke discrimination function technology under intelligent terminal note interface of the prior art is very ripe, therefore utilizes the Stroke discrimination function of CPU that the inventive method can be very easy to and identify each irregularity gesture on touch-screen accurately.
Accompanying drawing explanation
Fig. 1 is the gesture identification method process flow diagram of traditional intelligence terminal touch screen.
Fig. 2 is intelligent terminal touch screen gesture identification method process flow diagram of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 2, present embodiment discloses a kind of intelligent terminal touch screen gesture identification method, comprise the following steps:
(1) intelligent terminal enters holding state, and touch-screen opens gesture identification function, scans on the touchscreen, to judge whether touch-screen has gesture touch action with certain frequency; Wherein this sweep frequency wakes sweep frequency up lower than touch-screen, and user draws corresponding gesture on the touchscreen.
(2) current on touch-screen firmware identification touch-screen gesture, judges that whether current gesture is regular, and whether the firmware namely in touch-screen can identify current gesture; Touch-screen firmware is by judging that the key point on touch-screen track identifies gesture symbol, if a kind of gesture symbol of these key points only in corresponding touch-screen firmware, so illustrates that touch-screen firmware can clearly identify this gesture; If but these key points can two kinds, corresponding touch-screen firmware or two or more gesture symbols, so just illustrate that touch-screen firmware cannot clearly identify this gesture, the first stroke of a Chinese character of such as gesture " U " is with when starting to write closer, these key points will " O " and " U " two kinds of gesture symbols in corresponding touch-screen firmware, and now touch-screen firmware just cannot accurately judge this gesture;
If so, step (4) is then entered;
If not, then step (3) is entered.
(3) wake the CPU of intelligent terminal system up, touch-screen keeps going out screen state; Start the Stroke discrimination function of CPU, the Stroke discrimination function wherein under the Stroke discrimination function of CPU and intelligent terminal system note interface is same recognition function simultaneously; Judge current gesture by Stroke discrimination function, then this gesture symbol is sent to touch-screen firmware, this gesture symbol of touch-screen firmware stores, and count step (4).
(4) wake intelligent terminal system up, light touch-screen, adjustment sweep frequency, to the sweep frequency under touch-screen normal operating conditions, enters the application that this gesture is corresponding.
In the present embodiment step (1), touch-screen is when carrying out gesture identification, and its sweep frequency wakes sweep frequency up lower than touch-screen, and wakes sweep frequency up lower than the sweep frequency under touch-screen normal operating conditions.Therefore the method for the present embodiment has advantage low in energy consumption.
The method of the present embodiment is when touch-screen firmware None-identified goes out current gesture, and just the CPU of open system carries out identifying current gesture, while improve touch-screen gesture identification degree of accuracy, reduces the power consumption of system.If intelligent terminal system one judges gesture straight through CPU, then under holding state, whenever touch-screen is touched, will CPU be waken up, open gesture identification function, very large power consumption penalty will certainly be caused like this.
In the present embodiment step (3), after intelligent terminal goes out current gesture by Stroke discrimination identification of function, this gesture symbol is sent to touch-screen firmware, this gesture symbol preserved by touch-screen firmware, if there is this gesture again in touch-screen, then touch-screen firmware Direct Recognition can go out this gesture, without the need to waking CPU up again, reduce further the power consumption of the present embodiment gesture identification method.
Above-described embodiment is the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (5)

1. an intelligent terminal touch screen gesture identification method, is characterized in that, comprises the following steps:
(1) intelligent terminal enters holding state, and touch-screen opens gesture identification function; User draws gesture on the touchscreen;
(2) the current gesture of touch-screen firmware identification, judges whether touch-screen firmware can identify current gesture;
If so, step (4) is then entered;
If not, then step (3) is entered;
(3) CPU of intelligent terminal system is waken up, start the Stroke discrimination function of CPU simultaneously, judge current gesture by Stroke discrimination function, then gesture symbol is sent to touch-screen firmware, this gesture symbol of touch-screen firmware stores, and enter step (4);
(4) wake intelligent terminal system up, light the screen of touch-screen, enter the application that this gesture is corresponding;
Can the firmware in described step (2) in touch-screen judge identify that the process of current gesture is as follows: touch-screen firmware is by judging that the key point on touch-screen track identifies gesture symbol, if a kind of gesture symbol in the corresponding touch-screen firmware of these key points, so touch-screen firmware identifies this gesture; If two kinds or two or more symbols in the corresponding touch-screen firmware of these key points, so touch-screen firmware None-identified goes out this gesture.
2. intelligent terminal touch screen gesture identification method according to claim 1, it is characterized in that, in described step (1), when carrying out gesture identification under intelligent terminal holding state, to wake on sweep frequency touch screen scanning whether have gesture touch action up lower than touch-screen, touch-screen wakes sweep frequency up lower than the sweep frequency under touch-screen normal operating conditions.
3. intelligent terminal touch screen gesture identification method according to claim 2, is characterized in that, described step (4), and when touch-screen brightens, adjustment sweep frequency is to the sweep frequency under touch-screen normal operating conditions.
4. intelligent terminal touch screen gesture identification method according to claim 1, is characterized in that, the Stroke discrimination function in described step (3) under the Stroke discrimination function of CPU and intelligent terminal system note interface is same recognition function.
5. intelligent terminal touch screen gesture identification method according to claim 1, is characterized in that, in described step (3), after waking CPU up and before waking intelligent terminal system up, touch-screen is in screen state of going out.
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