CN104808847B - Anti-interference method, device and touch sensor, the touch control terminal of touch-screen detection - Google Patents
Anti-interference method, device and touch sensor, the touch control terminal of touch-screen detection Download PDFInfo
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- CN104808847B CN104808847B CN201510181138.0A CN201510181138A CN104808847B CN 104808847 B CN104808847 B CN 104808847B CN 201510181138 A CN201510181138 A CN 201510181138A CN 104808847 B CN104808847 B CN 104808847B
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000035945 sensitivity Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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Abstract
The invention discloses anti-interference method, device and the touch sensor of touch-screen detection, touch control terminal, methods described includes：Judge whether touch control terminal enters charged state；After judging that touch control terminal enters charged state, detect whether the touch signal acted on the touch-screen of the touch control terminal be present；When detecting touch signal, judge whether the touch area of the touch signal is less than the first preset value, if so, the touch signal then is determined as into interference signal and abandons handling the touch signal；Described device includes：Charged state judging unit, touch signal detection unit, interference signal filter out unit, solve the problems, such as that touch-screen occurs reacting slow, hop, failure in charged state, realize the interference for excluding charging to touch-screen detection.
Description
Technical field
The present embodiments relate to touch sensor technologies field, more particularly to a kind of anti-interference side of touch-screen detection
Method, device and touch sensor, touch control terminal.
Background technology
With the development of touch screen technology, capacitive touch screen is widely used in the portable sets such as mobile phone, tablet personal computer,
These portable equipments need often to charge because of limited battery capacity, and the charging interval generally more than 1 hour, so user pass through
Capacitance touch screen often can be used while charging.In fact, capacitive touch screen is substantially a capacitance measurement system, its
In, what capacitance measurement measured mainly in a manner of sending signal-reception signal, so, the common-mode noise on charger, very
The input of touch-screen may be transferred to when user is using touch-screen and signal is interfered, capacitive touch easily occur
Touch screen detection chip error detection or the phenomenon of erroneous judgement.
Interference of the charger to touch-screen is always a technical barrier of touch screen design, especially with charging of inferior brand
Device, it is easy to so that touch-screen occurs reacting slow, hop, the situation of failure.Traditional solution charger interference problem, is to pass through
Change the scan frequency of touch-screen, the interference frequency of tripping charger is realized.But in the market, charger brand is numerous,
The switching frequency of each charger is different, and compares and be difficult to how many interference frequency of current charger determined, therefore
It is difficult to avoid the interfering frequency of all chargers, therefore it can not effectively realize and exclude interference problem of the charging to touch-screen.
The content of the invention
The present invention provides a kind of anti-interference method, device and touch sensor, the touch control terminal of touch-screen detection, to realize
Exclude interference problem of the charging to touch-screen detection, solve touch-screen occurs in charged state reaction slowly, hop, failure ask
Topic.
In a first aspect, the embodiments of the invention provide a kind of anti-interference method of touch-screen detection, methods described is included such as
Lower step：
Judge whether touch control terminal enters charged state；
Judge touch control terminal enter charged state after, detect whether exist act on the touch-screen of the touch control terminal
Touch signal；
When detecting touch signal, judge whether the touch area of the touch signal is less than the first preset value, if so,
The touch signal is then determined as interference signal and abandons handling the touch signal.
Further, first preset value is 20.
Further, methods described also includes：
When the touch area of the touch signal is more than or equal to the first preset value, the touch signal is determined as
Useful signal, and handle the touch signal.
Further, after judging that touch control terminal enters charged state, before detecting whether to have touch signal, also
Including：
The Sensitirity va1ue of the touch-screen of the touch control terminal is arranged to the second preset value, second preset value is less than institute
State the Sensitirity va1ue of touch-screen when touch control terminal is in uncharged state.
Further, second preset value is 70.
Second aspect, the embodiment of the present invention additionally provide a kind of means for anti-jamming of touch-screen detection, and described device includes：
Charged state judging unit, for judging whether touch control terminal enters charged state；
Touch signal detection unit, acted on for when the touch control terminal enters charged state, detecting whether to exist
Touch signal on the touch-screen of the touch control terminal；
Interference signal filters out unit, for when detecting touch signal, judging that the touch area of the touch signal is
It is no to be less than the first preset value, if so, the touch signal then is determined as into interference signal and abandons handling the touch signal.
Further, first preset value is 20.
Further, described device also includes：
Useful signal processing unit, it is more than or equal to the first preset value for the touch area when the touch signal
When, the touch signal is determined as useful signal, and handle the touch signal.
Further, described device also includes：
Sensitivity setting unit, for the Sensitirity va1ue of the touch-screen of the touch control terminal to be arranged into the second preset value,
Second preset value is less than the Sensitirity va1ue of the touch-screen when touch control terminal is in uncharged state.
Further, second preset value is 70.
The third aspect, the embodiment of the present invention additionally provide a kind of touch sensor, and the touch sensor, which includes touching, to be controlled
Device processed, the touch controller include the means for anti-jamming that above-mentioned touch-screen detects.
Fourth aspect, the embodiment of the present invention additionally provide a kind of touch control terminal, and the touch control terminal passes including above-mentioned touch
Sensor.
The present invention acts on the touch control terminal by after judging that touch control terminal enters charged state, detecting whether to exist
Touch-screen on touch signal, and when detecting touch signal, judge whether the touch area of the touch signal is less than
First preset value, when the touch area of the touch signal is less than the first preset value, the touch signal is judged to disturbing
Signal simultaneously is abandoned handling the touch signal, solves the problems, such as that touch-screen occurs reacting slow, hop, failure in charged state,
Realize and effectively exclude interference problem of the charging to touch-screen detection.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the anti-interference method for touch-screen detection that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow chart of the anti-interference method for touch-screen detection that the embodiment of the present invention two provides；
Fig. 3 is a kind of structural representation of the means for anti-jamming for touch-screen detection that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural representation for touch sensor that the embodiment of the present invention four provides；
Fig. 5 is a kind of structural representation for touch control terminal that the embodiment of the present invention five provides.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that in order to just
Part related to the present invention rather than entire infrastructure are illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of flow chart of the anti-interference method for touch-screen detection that the embodiment of the present invention one provides, and this method can
Performed with the means for anti-jamming that is detected by touch-screen, the means for anti-jamming of the touch-screen detection can specifically pass through software or hard
The form of part is realized, and can be typically integrated in the touch controller of touch sensor, or, it is integrated in touch control terminal (touch-control
Mobile phone, tablet personal computer etc.) in.The method of the embodiment of the present invention specifically comprises the following steps：
Step 110, judge whether touch control terminal enters charged state；
The step can be matched somebody with somebody by the means for anti-jamming that the main control chip of touch control terminal and the touch-screen of touch control terminal detect
Close and realize, after touch control terminal is connected with charger, charger is charged by power supply to the battery of touch control terminal, is now touched
The main control chip of control terminal is notified that the means for anti-jamming touch control terminal of touch-screen detection enters charge mode, touch-screen detection
Means for anti-jamming judges whether touch control terminal enters charged state when receiving the notice into charge mode, such as can be with
When receiving into the notice of charge mode, detect corresponding interface flag and judge whether touch control terminal enters charged state.
When detecting that touch control terminal enters charged state, step 120 is continued executing with, otherwise, terminates this process, continues executing with touch-control
Other programs of terminal.Above-mentioned touch control terminal can be that the movement of the touch-control such as mobile phone, tablet personal computer, Electronic Paper, digital photo frame class is whole
End.
Step 120, judge touch control terminal enter charged state after, detect whether exist act on the touch control terminal
Touch signal on touch-screen；
Touch control terminal enter charged state after, detect whether in real time exist act on the touch-screen of the touch control terminal
Touch signal, the touch signal not only includes touch signal caused by operation of the user to touch control terminal touch-screen, also wraps
Include the touch signal of the touch control terminal misidentification caused by being charged to touch control terminal.The touch-control end is acted on detecting the presence of
During touch signal on the touch-screen at end, step 130 is continued executing with, otherwise, continues to detect whether to exist to act on the touch-control
Touch signal on the touch-screen of terminal.
Step 130, when detecting touch signal, judging the touch area of the touch signal, whether to be less than first default
Value；
The touch area that user carries out touch operation to touch-screen is typically bigger, and the touch signal caused by interference that charges
Touch area all very littles, it is random on the touchscreen to occur, therefore can be judged to touch letter according to the touch area of touch signal
Number whether caused by charging interference.Specifically, the first preset value of setting, when detecting touch signal, judges the touch
Whether the touch area of signal is less than the first preset value, if so, then continuing executing with step 140, otherwise performs step 150.
Step 140, when the touch area of the touch signal is less than the first preset value, the touch signal is determined as
Interference signal simultaneously is abandoned handling the touch signal.
When the touch area of the touch signal is less than the first preset value, the touch signal is determined as interference signal
And abandon handling the touch signal, refer to, not by the coordinate of the touch point of the touch information, pressure, touch area and be reported to touch-control
The main control chip of terminal, the main control chip of such touch control terminal would not think there is this touch signal, would not also make
Response, so as to reach the purpose of filtering charging interference.
Step 150, when the touch area of the touch signal is more than or equal to the first preset value, by it is described touch believe
Number it is determined as useful signal, and handles the touch signal.
It is more than or equal to the touch signal of the first preset value for touching area, is determined as useful signal, that is, sentenced
It is set to touch signal caused by touch operation of the user to touch control terminal touch-screen, and handles the touch signal, and makes corresponding
Response.
Specifically, the touch signal according to caused by touch operation of the user to touch control terminal touch-screen and charging interference are drawn
It is 20 that the characteristics of touch signal risen, which sets the first preset value,.Due to the touch-screen of different model, numerical value difference, this area
Technical staff can according to the scene of practical application distinguish set, it should be noted that the touch described in the embodiment of the present invention
Area can be the quantity calculating of the areal calculation according to touch-screen or the pixel by touch-screen, therefore described
First preset value is a relative value.
The embodiment of the present invention acts on described touch by after judging that touch control terminal enters charged state, detecting whether to exist
Touch signal on the touch-screen of control terminal, and when detecting touch signal, judging the touch area of the touch signal is
It is no to be less than the first preset value, when the touch area of the touch signal is less than the first preset value, the touch signal is judged
For interference signal and abandon handling the touch signal, so as to effectively filter the touch signal caused by interference that charges, solve tactile
The problem of touching slow screen appearance reaction in charged state, hop, failure, realize effectively to exclude to charge and touch-screen detection is done
Disturb problem.
Embodiment two
Fig. 2 is a kind of flow chart of the anti-interference method for touch-screen detection that the embodiment of the present invention two provides.The present embodiment
For the optimization on the basis of above-described embodiment one, accordingly, the method for the present embodiment comprises the following steps：
Step 210, judge whether touch control terminal enters charged state；
When touch control terminal enters charged state, step 220 is performed, otherwise terminates this process, continue executing with touch-control end
Other programs in end.
Step 220, judge touch control terminal enter charged state after, by the Sensitirity va1ue of the touch-screen of the touch control terminal
It is arranged to the second preset value；
Wherein, second preset value is less than the sensitivity of the touch-screen when touch control terminal is in uncharged state
Value.The Sensitirity va1ue of touch-screen reflects be quick on the draw degree of the touch-screen to touch signal, specifically can be by changing spirit
The Sensitirity va1ue of touch-screen in sensitivity register controls be quick on the draw degree of the touch-screen to touch signal to realize.General feelings
Under condition, the Sensitirity va1ue of touch-screen is bigger, and touch-screen is sensitiveer to the degree that is quick on the draw of touch signal.At the touch control terminal
When uncharged state, the Sensitirity va1ue of the touch-screen of touch control terminal typically all set it is bigger, but in this case, charging
Small touch signal also just is easily detected out caused by interference, it is possible to which the use to touch-screen impacts.
Therefore, after judging that touch control terminal enters charged state, the Sensitirity va1ue of the touch-screen of the touch control terminal is arranged to second
Preset value, second preset value are less than the Sensitirity va1ue of the touch-screen when touch control terminal is in uncharged state, mistake
Filter touch signal caused by part charging interference.
Second preset value can consider using effect of the user in charging, and the anti-interference feelings to charging
Second preset value is preferably arranged to 70 by condition, the embodiment of the present invention, and second preset value is a relative value.Due to
The touch-screen of different model, difference, those skilled in the art can distinguish and set numerical value according to the scene of practical application.
Step 230, detect whether the touch signal acted on the touch-screen of the touch control terminal be present；
When detecting the presence of the touch signal on the touch-screen for acting on the touch control terminal, step 240 is continued executing with,
Otherwise, continue to detect whether the touch signal acted on the touch-screen of the touch control terminal be present.
Step 240, when detecting touch signal, judging the touch area of the touch signal, whether to be less than first default
Value；
When the touch area of the touch signal is less than the first preset value, step 250 is performed, otherwise performs step 260.
Step 250, when the touch area of the touch signal is less than the first preset value, the touch signal is determined as
Interference signal simultaneously is abandoned handling the touch signal.
Step 260, when the touch area of the touch signal is more than or equal to the first preset value, by it is described touch believe
Number it is determined as useful signal, and handles the touch signal.
The embodiment of the present invention by judge touch control terminal enter charged state after, first by the touch-screen of the touch control terminal
Sensitirity va1ue be arranged to the second preset value, described in when second preset value is in uncharged state less than the touch control terminal
The Sensitirity va1ue of touch-screen, touch signal caused by part charging interference is filtered, then the touch by judging to detect again
Whether the touch area of signal is less than the first preset value, will when the touch area of the touch signal is less than the first preset value
The touch signal is determined as interference signal and abandons handling the touch signal, be further filtered through reduce Sensitirity va1ue can not
The charging interference of filtering, solve the problems, such as that touch-screen occurs reacting slow, hop, failure in charged state, further improve
The degree of accuracy to the interference problem of touch-screen detection.
Embodiment three
Fig. 3 is a kind of structural representation of the means for anti-jamming for touch-screen detection that the embodiment of the present invention three provides.Such as Fig. 3
Shown, the device includes：Charged state judging unit 31, touch signal detection unit 32, interference signal filter out unit 33.
Wherein, the charged state judging unit 31, for judging whether touch control terminal enters charged state；
The touch signal detection unit 32, for when the touch control terminal enters charged state, detecting whether exist
The touch signal acted on the touch-screen of the touch control terminal；
The interference signal filters out unit 33, for when detecting touch signal, judging the touch of the touch signal
Whether area is less than the first preset value, if so, the touch signal then is determined as into interference signal and abandons handling touch letter
Number.
The embodiment of the present invention acts on described touch by after judging that touch control terminal enters charged state, detecting whether to exist
Touch signal on the touch-screen of control terminal, and when detecting touch signal, judging the touch area of the touch signal is
It is no to be less than the first preset value, when the touch area of the touch signal is less than the first preset value, the touch signal is judged
For interference signal and abandon handling the touch signal, so as to effectively filter the touch signal caused by interference that charges, solve tactile
The problem of touching slow screen appearance reaction in charged state, hop, failure, realize effectively to exclude to charge and touch-screen detection is done
Disturb problem.
On the basis of above-described embodiment, first preset value is 20.
On the basis of above-described embodiment, described device also includes：Useful signal processing unit 34, for when the touch
When the touch area of signal is more than or equal to the first preset value, the touch signal is determined as useful signal, and handle and be somebody's turn to do
Touch signal.
On the basis of above-described embodiment, described device also includes：
Sensitivity setting unit 35, for after judging that touch control terminal enters charged state, being touched detecting whether to exist
Before touching signal, the Sensitirity va1ue of the touch-screen of the touch control terminal is arranged to the second preset value, second preset value is small
The Sensitirity va1ue of the touch-screen when touch control terminal is in uncharged state.
On the basis of above-described embodiment, second preset value is 70.
The means for anti-jamming for the touch-screen detection that the embodiment of the present invention is provided can be used for performing any embodiment of the present invention
The anti-interference method of the touch-screen detection of offer, possesses corresponding functional module, realizes identical beneficial effect.
Example IV
The embodiment of the present invention four also provides a kind of touch sensor.Fig. 4 is a kind of touch that the embodiment of the present invention four provides
The structural representation of sensor.Referring to Fig. 4, the touch sensor includes touch controller 41, can also include drive circuit
The device for being used to support touch sensor normal work with other.Wherein, the touch controller 41 includes the various embodiments described above
The means for anti-jamming 42 of described touch-screen detection.
Touch sensor provided in an embodiment of the present invention, because its touch controller employs the anti-of above-mentioned touch-screen detection
Countermeasure set, therefore, touch sensor equally have the beneficial effect of the means for anti-jamming of above-mentioned touch-screen detection.
Embodiment five
The embodiment of the present invention five also provides a kind of touch control terminal.Fig. 5 is that a kind of touch-control that the embodiment of the present invention five provides is whole
The structural representation at end.Referring to Fig. 5, the touch control terminal includes touch sensor 51, wherein, the touch sensor 51 is upper
State the touch sensor described in example IV.Above-mentioned touch control terminal can be touch-control mobile phone, tablet personal computer, Electronic Paper, electronics phase
One kind in the touch-control class mobile terminal such as frame.
Touch control terminal provided in an embodiment of the present invention, the touch sensor provided as a result of above-described embodiment five, because
This, the touch control terminal equally has the same beneficial effect of above-mentioned touch sensor.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of anti-interference method of touch-screen detection, is held by being integrated in means for anti-jamming in the touch controller of touch sensor
OK, it is characterised in that methods described comprises the following steps：
The main control chip for obtaining touch control terminal send into charge mode notice when, detect corresponding interface flag and judge
Whether touch control terminal enters charged state；
, will by changing the Sensitirity va1ue of the touch-screen in sensitivity register after judging that touch control terminal enters charged state
The Sensitirity va1ue of the touch-screen of the touch control terminal is arranged to the second preset value, and second preset value is less than the touch control terminal
The Sensitirity va1ue of touch-screen during in uncharged state；Detect whether to exist and act on the touch-screen of the touch control terminal
Touch signal；
When detecting touch signal, judge whether the touch area of the touch signal is less than the first preset value, if so, then will
The touch signal is determined as that interference signal is not reported to the coordinate of the touch point of the touch signal, pressure and touch area
The main control chip of touch control terminal, to abandon handling the touch signal.
2. according to the method for claim 1, it is characterised in that first preset value is 20.
3. according to the method for claim 1, it is characterised in that also include：
When the touch area of the touch signal is more than or equal to the first preset value, the touch signal is determined as effectively
Signal, and handle the touch signal.
4. according to the method for claim 1, it is characterised in that second preset value is 70.
5. a kind of means for anti-jamming of touch-screen detection, it is characterised in that described device includes：
Charged state judging unit, for obtain touch control terminal main control chip send into charge mode notice when,
Detect corresponding interface flag and judge whether touch control terminal enters charged state；
Touch signal detection unit, it is described in the presence of acting on for when the touch control terminal enters charged state, detecting whether
Touch signal on the touch-screen of touch control terminal；
Sensitivity setting unit, for after judging that touch control terminal enters charged state, detecting whether touch signal be present
Before, by changing the Sensitirity va1ue of the touch-screen in sensitivity register, by the sensitivity of the touch-screen of the touch control terminal
Value is arranged to the second preset value, and second preset value is less than the touch-screen when touch control terminal is in uncharged state
Sensitirity va1ue；
Interference signal filters out unit, for when detecting touch signal, judging whether the touch area of the touch signal is small
In the first preset value, if so, being then determined as interference signal not by the seat of the touch point of the touch signal touch signal
Mark, pressure and touch area are reported to the main control chip of touch control terminal, to abandon handling the touch signal.
6. device according to claim 5, it is characterised in that first preset value is 20.
7. device according to claim 5, it is characterised in that also include：
Useful signal processing unit, for when the touch area of the touch signal is more than or equal to the first preset value, inciting somebody to action
The touch signal is determined as useful signal, and handles the touch signal.
8. device according to claim 5, it is characterised in that second preset value is 70.
9. a kind of touch sensor, it is characterised in that including touch controller, the touch controller includes claim 5-8
Any one of touch-screen detection means for anti-jamming.
10. a kind of touch control terminal, it is characterised in that including the touch sensor described in claim 9.
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| CN201510181138.0A CN104808847B (en) | 2015-04-16 | 2015-04-16 | Anti-interference method, device and touch sensor, the touch control terminal of touch-screen detection |
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| CN201510181138.0A CN104808847B (en) | 2015-04-16 | 2015-04-16 | Anti-interference method, device and touch sensor, the touch control terminal of touch-screen detection |
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| CN106575169B (en) * | 2015-10-16 | 2020-04-17 | Oppo广东移动通信有限公司 | Method for eliminating interference of charger on touch screen and mobile terminal |
| CN105929999A (en) * | 2016-04-18 | 2016-09-07 | 北京小米移动软件有限公司 | Method and apparatus for controlling touch screen to perform triggering and electronic device |
| CN106786948A (en) * | 2016-12-30 | 2017-05-31 | 深圳市金立通信设备有限公司 | A kind of battery charging control method and terminal |
| CN107277212B (en) * | 2017-06-22 | 2021-01-08 | 深圳天珑无线科技有限公司 | Method and system for testing screen jumping point of mobile terminal |
| CN107402675B (en) | 2017-07-28 | 2019-08-02 | Oppo广东移动通信有限公司 | A kind of response method of touch operation, device, storage medium and terminal |
| CN107728847B (en) * | 2017-10-31 | 2020-06-12 | 维沃移动通信有限公司 | Charging interference processing method and mobile terminal |
| GB2574588A (en) * | 2018-06-06 | 2019-12-18 | Cambridge Touch Tech Ltd | Pressure sensing apparatus and method |
| CN110221721A (en) * | 2019-05-14 | 2019-09-10 | 武汉华星光电技术有限公司 | A kind of processing method of touching signals, device and storage medium |
| CN110609646A (en) * | 2019-09-26 | 2019-12-24 | 北京集创北方科技股份有限公司 | Signal processing method and device and electronic equipment |
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