CN103389847A - Touch control terminal and anti-interference method and system thereof - Google Patents
Touch control terminal and anti-interference method and system thereof Download PDFInfo
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Abstract
The invention discloses a touch control terminal and an anti-interference method and system thereof. The touch control terminal comprises the anti-interference system, wherein the anti-interference system comprises a capacitance value acquisition module and a first adjusting module. The method comprises the following steps: S1, if the touch control terminal is connected to a USB (Universal Serial Bus) peripheral device, adjusting the response threshold value of a capacitive touch screen of the touch control terminal to lower the response sensitivity of the capacitive touch screen; and S2, if the touch control terminal is separated from the USB peripheral device, adjusting the response threshold value into a default value to recover the response sensitivity of the capacitive touch screen. According to the method and the system, after the insertion of the touch control terminal into the USB peripheral device is detected, the response threshold value of the capacitive touch screen is increased, the sensitivity of the capacitive touch screen is lowered, and the problem of interference is solved.
Description
Technical field
The present invention relates to the touch sensing technology, more particularly, relate to a kind of touch control terminal and anti-interference method thereof and system.
Background technology
During the existing touch control terminal access USB device that comprises capacitive touch screen, USB device can be charged for touch control terminal, for example mobile phone accesses computer by USB interface, mobile phone charges by the USB interface connecting charger for another example, because the sweep frequency of the switching frequency of the equipment for touch control terminal charging and capacitive touch screen is more approaching, interference to capacitive touch screen in charging process is larger, can cause touching the problem of maloperation.The method of traditional this interference problem of solution is the sweep frequency that changes capacitive touch screen, to skip interfering frequency.But on the market, the kind of USB device is a lot, for example, the brand of charger is numerous, the switching frequency of the charger of each brand is different, so just causes a problem: after solving the interference of one of them charger, change a charger,, because switching frequency is different, likely exist and disturb again.That is to say above-mentioned anti-disturbance method, can avoid the interfering frequency of one or more charger, but can not avoid the interfering frequency of all chargers, so the method can not solve the interference problem of charger to capacitive touch screen fully.
Summary of the invention
The present invention is directed to the above-mentioned defect of prior art, a kind of touch control terminal and anti-interference method thereof and system are provided, when touch control terminal access USB peripheral hardware, reduce the response sensitivity of the condenser type display screen of touch control terminal, thereby solved, be made as in the touch control terminal charging process touch maloperation problem that the interference to capacitive touch screen causes outward because of USB.
The technical scheme that the application solves its technical matters employing is: a kind of anti-interference method of the capacitive touch screen for touch control terminal is provided, comprises the following steps:
, if the S1 touch control terminal accesses the USB peripheral hardware, adjust the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen;
, if the S2 touch control terminal separates with the USB peripheral hardware, described response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
Preferably, described method also comprises:
S0, for the capacitance of capacitive touch screen arranges a plurality of intervals, and be each interval thresholding adjusted value that distributes;
Preferably, step S1 comprises following substep:
If S11 touch control terminal access USB peripheral hardware, obtain the capacitance of capacitive touch screen after this USB peripheral hardware of access;
S12, judge under this capacitance intervally, adjust the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen.
Preferably, step S1 also comprises following substep:
S13, interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
A kind of jamproof system of the capacitive touch screen for touch control terminal is provided, comprises:
The first adjustment unit, be used for adjusting the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen when touch control terminal access USB peripheral hardware;
The second adjustment unit, be used for, when touch control terminal separates with the USB peripheral hardware, described response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
Preferably, described system also comprises:
Setting unit, be used to the capacitance of capacitive touch screen that a plurality of intervals are set, and be each interval thresholding adjusted value that distributes;
Preferably, described the first adjustment unit comprises:
The capacitance acquisition module, be used for when touch control terminal access USB peripheral hardware, obtains the capacitance of capacitive touch screen after this USB peripheral hardware of access;
The first adjusting module, be used for the affiliated interval of capacitance that judges that described capacitance acquisition module obtains, and adjusts the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen.
Preferably, described the first adjustment unit also comprises:
The second adjusting module, be used for interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
A kind of touch control terminal is provided, comprises the jamproof system of the described capacitive touch screen for touch control terminal in above-mentioned any one.
Touch control terminal of the present invention and anti-interference method thereof and system have following beneficial effect: added the USB peripheral hardware to insert testing mechanism, when USB peripheral hardware insertion touch control terminal having been detected, improve the response threshold value of capacitive touch screen, thereby reduce the response sensitivity of capacitive touch screen, thereby solved the charger interference problem of USB peripheral hardware to touch control terminal.More accurate and effective is located in interference, and can not affect the normal use of capacitive touch screen, and be applicable to various USB peripheral hardwares, for example various chargers.
Description of drawings
Fig. 1 is the process flow diagram of the first embodiment of the anti-interference method of the capacitive touch screen for touch control terminal of the present invention;
Fig. 2 is the process flow diagram of the second embodiment of the anti-interference method of the capacitive touch screen for touch control terminal of the present invention;
Fig. 3 is the functional block diagram of jamproof system first embodiment of the capacitive touch screen for touch control terminal of the present invention;
Fig. 4 is the workflow diagram of the jamproof system of the capacitive touch screen that is used for touch control terminal shown in Figure 3;
Fig. 5 is the functional block diagram of jamproof system second embodiment of the capacitive touch screen for touch control terminal of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention will be further explained explanation.
The principle of work of the capacitive touch screen of touch control terminal is: stored a response threshold value (also can be described as newspaper point threshold value) in a register of the controller inside of capacitive touch screen, when on the metal level of finger touch at capacitive touch screen, due to people's bulk electric field, finger and touch screen surface form a coupling capacitance, when capacitance reaches or surpass the response threshold value, will respond this touch action (namely reporting a little), namely carry out corresponding touch control operation.
Fig. 1 is the process flow diagram of the first embodiment of the anti-interference method of the capacitive touch screen for touch control terminal of the present invention, and as shown in Figure 1, in this enforcement, method of the present invention comprises the following steps:
, if the S1 touch control terminal accesses the USB peripheral hardware, adjust the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen;
, if the S2 touch control terminal separates with the USB peripheral hardware, the response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
In the present embodiment, can overlap by software built-in two setup code of the controller of capacitive touch screens, when touch control terminal access USB peripheral hardware, use the controller of first set setup code initialization capacitive touch screen, realize reducing the response sensitivity of capacitive touch screen.When touch control terminal separates with the USB peripheral hardware, use the second cover setup code controller of initialization capacitive touch screen again, realize the response sensitivity of capacitive touch screen is reverted to default value.Wherein, the second cover setup code is the code of the controller of normal initialization capacitive touch screen.
Particularly, in step S1, judged whether USB peripheral hardware access touch control terminal, carrying out if not touch control terminal works normally, if use the response sensitivity of first set setup code initialization capacitive touch screen, thereby adjust the response threshold value of storing in the register of controller, the response threshold value is increased to a new threshold value from original default value, owing to having increased the response threshold value, thereby reduced the response sensitivity of capacitive touch screen.In addition, the response threshold value after increase is less than or equals the maximal value capacitance that can produce after the finger touch screen, otherwise it is invalid to make capacitive touch screen touch.
In step S2, judge whether touch control terminal separates with the USB peripheral hardware of access, keep if not the response sensitivity of current capacitive touch screen, if use the controller of the second cover setup code initialization capacitive touch screen, the response threshold value of storing in the register of controller is returned to default value, thereby recover the response sensitivity of capacitive touch screen.
In the present embodiment, the controller by different code initialization capacitive touch screens, write different parameters to the register in controller, realizes setting different response threshold values, thereby change the response sensitivity of capacitive touch screen.Realized after USB peripheral hardware insertion touch control terminal being detected, improve the response threshold value of capacitive touch screen, reduce the sensitivity of capacitive touch screen,, regardless of the USB peripheral hardware that the accesses switching frequency of (can regard charger as), can well realize anti-interference.
Fig. 2 is the process flow diagram of the second embodiment of the anti-interference method of the capacitive touch screen for touch control terminal of the present invention, and as shown in Figure 2, the difference of the first embodiment of this embodiment and method of the present invention is, method also comprises step:
S0, for the capacitance of capacitive touch screen arranges a plurality of intervals, and be each interval thresholding adjusted value that distributes.
In the present embodiment, step S1 comprises following substep:
If S11 touch control terminal access USB peripheral hardware, obtain the capacitance of capacitive touch screen after this USB peripheral hardware of access;
S12, judge under this capacitance intervally, adjust the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen.
In this embodiment, consider the different USB peripheral hardware of touch control terminal access, the capacitance that capacitive touch screen produces can be different, and the capacitance of capacitive touch screen is divided into a plurality of intervals, distribute the thresholding adjusted value for each is interval, each interval thresholding adjusted value that distributes can be with can be different.When USB peripheral hardware access touch control terminal having been detected, obtain the capacitance of capacitive touch screen after this USB peripheral hardware of access, judge that it is affiliated interval, then adjust the response threshold value of current capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to increase current response threshold value, thus the response sensitivity of degradation capacitive touch screen.Wherein, can with current response threshold on duty with or add the Upper threshold adjusted value and obtain the target response threshold value.
In this embodiment, can carry out the increase of different amplitudes to response sensitivity when touch control terminal accesses different USB peripheral hardwares, realize the jamproof while, reduce the normal impact of using of touch control terminal.
In the 3rd embodiment of anti-interference method of the present invention, the difference of itself and method of the present invention the second embodiment is, in this embodiment, step S1 also comprises substep:
S13, interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
in this embodiment, considered in the whole process of USB peripheral hardware access, change along with level of charge, the capacitance that accesses the capacitive touch screen that causes due to the USB peripheral hardware may change, therefore, the USB peripheral hardware also with touch control terminal, do not separate during, every manager's certain time interval, just obtain the capacitance that accesses the capacitive touch screen that causes because of the USB peripheral hardware when front, judge that current capacitance is affiliated interval, and then under judgement, whether interval changes, keep current response threshold value if do not change, if the response threshold value of according to interval corresponding thresholding adjusted value under current, adjusting capacitive touch screen has occurred to change.Equally, can by the response threshold with current on duty with or add that the corresponding thresholding adjusted value of current interval obtains the target response threshold value.
In this embodiment, not and between the touch control terminal separation period, can, according to the process of charging, adjust the response sensitivity of capacitive touch screen at the USB peripheral hardware.In addition, for fear of conflict, occur, at the USB peripheral hardware, not and between the touch control terminal separation period,, if receive the touch-control of finger, do not carry out the operation of putting down in writing in step S13.
Fig. 3 is the functional block diagram of jamproof system 100 first embodiment of the capacitive touch screen for touch control terminal of the present invention, and as shown in Figure 3, in the present embodiment, jamproof system 100 of the present invention comprises:
The first adjustment unit 110, be used for adjusting the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen when touch control terminal access USB peripheral hardware;
The second adjustment unit 120, be used for, when touch control terminal separates with the USB peripheral hardware, the response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
In the present embodiment, can overlap by software built-in two setup code of the controller of capacitive touch screens.Fig. 4 is the workflow diagram of the first embodiment of jamproof system of the present invention, as shown in Figure 4, the first adjustment unit 110 has judged whether USB peripheral hardware access touch control terminal,, if the controller that uses first set setup code initialization capacitive touch screen is arranged, realize reducing the response sensitivity of capacitive touch screen.Whether the USB peripheral hardware of the second adjustment unit 110 judgement accesses separates with touch control terminal,, if use the second cover setup code controller of initialization capacitive touch screen again, realizes the response sensitivity of capacitive touch screen is reverted to default value.Wherein, the second cover setup code is the code of the controller of normal initialization capacitive touch screen.
Fig. 5 is the functional block diagram of jamproof system 100 second embodiment of the capacitive touch screen for touch control terminal of the present invention, and as shown in Figure 5, in the present embodiment, jamproof system 100 of the present invention also comprises:
Setting unit 130, be used to the capacitance of capacitive touch screen that a plurality of intervals are set, and be each interval thresholding adjusted value that distributes.
In the present embodiment, the first adjustment unit 110 comprises:
Capacitance acquisition module 111, be used for when touch control terminal access USB peripheral hardware, obtains the capacitance of capacitive touch screen after this USB peripheral hardware of access;
The first adjusting module 112, be used for the affiliated interval of capacitance that judgement capacitance acquisition module obtains, and adjusts the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen;
The second adjusting module 113, be used for interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (9)
1. an anti-interference method that is used for the capacitive touch screen of touch control terminal, is characterized in that, comprises the following steps:
, if the S1 touch control terminal accesses the USB peripheral hardware, adjust the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen;
, if the S2 touch control terminal separates with the USB peripheral hardware, described response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
2. anti-interference method according to claim 1, is characterized in that, described method also comprises:
S0, for the capacitance of capacitive touch screen arranges a plurality of intervals, and be that each interval distributes corresponding thresholding adjusted value.
3. anti-interference method according to claim 2, is characterized in that, step S1 comprises following substep:
If S11 touch control terminal access USB peripheral hardware, obtain the capacitance of capacitive touch screen after this USB peripheral hardware of access;
S12, judge under this capacitance intervally, adjust the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen.
4. anti-interference method according to claim 3, is characterized in that, step S1 also comprises following substep:
S13, interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
5. a jamproof system (100) that is used for the capacitive touch screen of touch control terminal, is characterized in that, comprising:
The first adjustment unit (110), be used for adjusting the response threshold value of the capacitive touch screen of touch control terminal, to reduce the response sensitivity of capacitive touch screen when touch control terminal access USB peripheral hardware;
The second adjustment unit (120), be used for, when touch control terminal separates with the USB peripheral hardware, described response threshold value is adjusted into default value, to recover the response sensitivity of capacitive touch screen.
6. jamproof system according to claim 5 (100), is characterized in that, described system also comprises:
Setting unit (130), be used to the capacitance of capacitive touch screen that a plurality of intervals are set, and be each interval thresholding adjusted value that distributes correspondence.
7. jamproof system according to claim 6 (100), is characterized in that, described the first adjustment unit (110) comprising:
Capacitance acquisition module (111), be used for when touch control terminal access USB peripheral hardware, obtains the capacitance of capacitive touch screen after this USB peripheral hardware of access;
The first adjusting module (112), be used for the affiliated interval of capacitance that judges that described capacitance acquisition module obtains, and adjusts the response threshold value of capacitive touch screen according to the thresholding adjusted value of this interval correspondence, to reduce the response sensitivity of capacitive touch screen.
8. jamproof system according to claim 7 (100), is characterized in that, described the first adjustment unit (110) also comprises:
The second adjusting module (113), be used for interval at regular intervals, obtain the capacitance that touch control terminal accesses capacitive touch screen after this USB peripheral hardware, judge under capacitance whether interval changes, if under current according to capacitance, interval corresponding thresholding adjusted value is adjusted the response threshold value of capacitive touch screen.
9. a touch control terminal, is characterized in that, comprises the described jamproof system of any one (100) in claim 5-8.
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| CN104881174A (en) * | 2015-06-04 | 2015-09-02 | 广东欧珀移动通信有限公司 | Method and device for dynamically adjusting sensitivity of touch screen |
| CN105389225A (en) * | 2015-11-25 | 2016-03-09 | 小米科技有限责任公司 | Touch screen reporting point processing method and apparatus |
| 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 |
| CN107132949A (en) * | 2017-04-28 | 2017-09-05 | 北京小米移动软件有限公司 | anti-interference method, device, terminal and storage medium |
| US9793748B2 (en) | 2015-08-31 | 2017-10-17 | Qualcomm Incorporated | Methods and apparatus for controlling touchscreen interference |
| WO2018166057A1 (en) * | 2017-03-13 | 2018-09-20 | 华为技术有限公司 | Method and electronic device for outputting touch control signals |
| CN110475000A (en) * | 2019-08-08 | 2019-11-19 | Oppo（重庆）智能科技有限公司 | Touch screen report point methods and relevant device |
| CN111757203A (en) * | 2020-06-29 | 2020-10-09 | 深圳市科奈信科技有限公司 | Wireless earphone control method and device, wireless earphone and storage medium |
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| CN104808847A (en) * | 2015-04-16 | 2015-07-29 | 广东欧珀移动通信有限公司 | Anti-interference method and device for detection of touch screen, touch sensor and touch terminal |
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| CN107132949B (en) * | 2017-04-28 | 2020-11-10 | 北京小米移动软件有限公司 | Anti-interference method, device, terminal and storage medium |
| CN110475000A (en) * | 2019-08-08 | 2019-11-19 | Oppo（重庆）智能科技有限公司 | Touch screen report point methods and relevant device |
| CN111757203A (en) * | 2020-06-29 | 2020-10-09 | 深圳市科奈信科技有限公司 | Wireless earphone control method and device, wireless earphone and storage medium |
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| CN103389847B (en) | 2017-02-08 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20170208 |