CN102386904A - Response method and system of capacitive sensing touch key and touch equipment - Google Patents
Response method and system of capacitive sensing touch key and touch equipment Download PDFInfo
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- CN102386904A CN102386904A CN2010102681273A CN201010268127A CN102386904A CN 102386904 A CN102386904 A CN 102386904A CN 2010102681273 A CN2010102681273 A CN 2010102681273A CN 201010268127 A CN201010268127 A CN 201010268127A CN 102386904 A CN102386904 A CN 102386904A
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Abstract
The invention is suitable for the technical field of electronics and provides a response method and system of a capacitive sensing touch key and touch equipment. The method comprises the following steps: judging whether the capacitance value of the key exceeds a preset capacitance threshold value or not; if the capacitance value of the key exceeds the preset capacitance threshold value, judging whether the capacitance value of the key becomes small in a preset time interval or not; if the capacitance value of the key becomes small in the preset time interval, making response, and outputting a corresponding key value. In the response method and system of the capacitive sensing touch key and the touch equipment, as long as the capacitance value of the key exceeds the preset capacitance threshold value, and the capacitance value of the key becomes small in the preset time interval, the response can be made, and the corresponding key value is output, therefore, the erroneous judgment caused because organisms climb over, such as insects and the like, or the erroneous judgment caused under the conditions that water drops are generated and the capacitive sensing touch key becomes damp can be effectively prevented.
Description
Technical field
The invention belongs to electronic technology field, relate in particular to a kind of response method, system and touch control device of capacitor induction type touch key-press.
Background technology
At present, in the response method of common capacitor induction type touch key-press, surpass predefined threshold values at detected capacitance; Think that then button is pressed, export corresponding key value, erroneous judgement appears in this method easily; For example, biologies such as insect get over or water droplet, situation such as make moist under, significant change can appear in the capacitance of touch key-press; Be easy to be judged as button and press, cause the misoperation of the corresponding key value of output.
In sum, the response method of common capacitor induction type touch key-press is judged by accident easily in the prior art.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of response method of capacitor induction type touch key-press, is intended to solve the problem of the easy erroneous judgement of response method of capacitor induction type touch key-press common in the prior art.
The embodiment of the invention is achieved in that a kind of response method of capacitor induction type touch key-press, said method comprising the steps of:
Whether the capacitance of judging button surpasses the electric capacity threshold values that is provided with in advance, whether in the time interval that is provided with in advance, diminish again if then judge the capacitance of button, if, then respond, export corresponding key value.
The embodiment of the invention also provides a kind of responding system of capacitor induction type touch key-press, and said system comprises:
First judging unit is used to judge whether the capacitance of button surpasses the electric capacity threshold values that is provided with in advance;
Second judging unit is used for when the capacitance of button surpasses the electric capacity threshold values that is provided with in advance, judges whether the capacitance of button diminishes again in the time interval that is provided with in advance;
Response unit is used for when the capacitance of button diminished again in the time interval that is provided with in advance, then responding, and exports corresponding key value.
The embodiment of the invention also provides a kind of touch control device, and said touch control device comprises the responding system of above-mentioned capacitor induction type touch key-press.
The embodiment of the invention compared with prior art; Beneficial effect is: the capacitance through at button surpasses the electric capacity threshold values that is provided with in advance; And when the capacitance of key diminished again in the time interval that is provided with in advance; Just can respond, export corresponding key value, thus can prevent effectively that biologies such as insect from getting over or water droplet, situation such as make moist under the erroneous judgement that causes.
Description of drawings
Fig. 1 is the flow chart of the response method of the capacitor induction type touch key-press that provides of the embodiment of the invention;
Fig. 2 is the module frame chart of the responding system of the capacitor induction type touch key-press that provides of the embodiment of the invention;
Fig. 3 is the module frame chart of the responding system of the capacitor induction type touch key-press that provides of another embodiment of the present invention.
Fig. 4 is the module frame chart of the responding system of the capacitor induction type touch key-press that provides of further embodiment of this invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention; Capacitance through at button surpasses the electric capacity threshold values that is provided with in advance; And when the capacitance of key diminished again in the time interval that is provided with in advance; Just can respond, export corresponding key value, thus can prevent effectively that biologies such as insect from getting over or water droplet, situation such as make moist under the erroneous judgement that causes.
The embodiment that the embodiment of the invention provides is following:
A kind of response method of capacitor induction type touch key-press said method comprising the steps of:
Whether the capacitance of judging button surpasses the electric capacity threshold values that is provided with in advance, whether in the time interval that is provided with in advance, diminish again if then judge the capacitance of button, if, then respond, export corresponding key value.
A kind of responding system of capacitor induction type touch key-press, said system comprises:
First judging unit is used to judge whether the capacitance of button surpasses the electric capacity threshold values that is provided with in advance;
Second judging unit is used for when the capacitance of button surpasses the electric capacity threshold values that is provided with in advance, judges whether the capacitance of button diminishes again in the time interval that is provided with in advance;
Response unit is used for when the capacitance of button diminished again in the time interval that is provided with in advance, then responding, and exports corresponding key value.
A kind of touch control device, said touch control device comprises the responding system of above-mentioned capacitor induction type touch key-press.
Below in conjunction with specific embodiment realization of the present invention is described in detail:
Embodiment one:
See also Fig. 1, the embodiment of the invention provides a kind of response method of capacitor induction type touch key-press, said method comprising the steps of:
S101: whether the capacitance of judging button surpasses the electric capacity threshold values that is provided with in advance, if then get into step S102, otherwise get into step S104;
S102: whether the capacitance of judging button diminishes again in the time interval that is provided with in advance, if then get into step S103, otherwise get into step S104;
S103: respond, export corresponding key value;
S104: do not respond.
In the embodiments of the invention; Capacitance through at button surpasses the electric capacity threshold values that is provided with in advance; And when the capacitance of key diminished again in the time interval that is provided with in advance; Just can respond, export corresponding key value, thus can prevent effectively that biologies such as insect from getting over or water droplet, situation such as make moist under the erroneous judgement that causes.
In one embodiment of the invention, further comprising the steps of before the said step S101:
Detect the capacitance of button.
In one embodiment of the invention, further comprising the steps of after the step of the capacitance of said detection button:
The filtering burr.
Through the filtering burr, can prevent shake.
Principle is explained as follows: when generally pointing button, presses back electric capacity and can become greatly, unclamp back electric capacity and diminish, and; The time interval of user key-press is shorter, and during like the finger button, the moment that electric capacity increases is for being designated as t1; When finger unclamped, the moment that electric capacity reduces was designated as t2, under the normal condition; Generally about hundreds of milliseconds, generally can set t1 is 100 milliseconds in the action of finger button, and t2 is 1 second; It is thus clear that the time interval of normal running is shorter, so, can be set short time interval in advance according to actual conditions.
Because insect creeps slow at interval than user's normal working time; Therefore cause that the button capacitance is longer at the change bound-time that diminishes greatly of bob; Equally; Water droplet, making moist not to cause in the short time interval that capacitance takes place to become the saltus step that diminishes greatly yet, thus can prevent effectively through scheme of the present invention that biology such as insect from getting over or water droplet, situation such as make moist under the erroneous judgement that causes.
Embodiment two:
See also Fig. 2, the embodiment of the invention provides a kind of responding system of capacitor induction type touch key-press, and said system comprises:
In an embodiment of the present invention, said response unit 203 also is used for not having to surpass the electric capacity threshold values of setting in advance when the capacitance of button, does not then respond.
In an embodiment of the present invention, said response unit 203 also is used for when the capacitance of button does not diminish again in the time interval that is provided with in advance, then not responding.
See also Fig. 3, in one embodiment of the invention, said system also comprises:
Detecting unit 204 is used to detect the capacitance of button.
See also Fig. 4, in one embodiment of the invention, said system also comprises:
Through the filtering burr, can prevent shake.
Embodiment three:
The embodiment of the invention provides a kind of touch control device, and said touch control device comprises the responding system of above-mentioned capacitor induction type touch key-press.
In one embodiment of the invention, said touch control device can be specially touch control devices such as television set, refrigerator, electromagnetic oven, electric cooker, phone, portable terminal.
The response method of capacitor induction type touch key-press of the present invention, system and touch control device; Capacitance through at button surpasses the electric capacity threshold values that is provided with in advance; And when the capacitance of key diminished again in the time interval that is provided with in advance; Just can respond, export corresponding key value, thus can prevent effectively that biologies such as insect from getting over or water droplet, situation such as make moist under the erroneous judgement that causes.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the response method of a capacitor induction type touch key-press; It is characterized in that; Said method comprising the steps of: whether the capacitance of judging button surpasses the electric capacity threshold values that is provided with in advance, whether in the time interval that is provided with in advance, diminish again if then judge the capacitance of button, if; Then respond, export corresponding key value.
2. the response method of capacitor induction type touch key-press as claimed in claim 1 is characterized in that, it is further comprising the steps of whether the said capacitance of judging button surpasses before the step of the electric capacity threshold values that is provided with in advance:
Detect the capacitance of button.
3. the response method of capacitor induction type touch key-press as claimed in claim 2 is characterized in that, and is further comprising the steps of after the step of the capacitance of said detection button:
The filtering burr.
4. like the response method of each described capacitor induction type touch key-press in the claim 1 to 3, it is characterized in that it is further comprising the steps of whether the said capacitance of judging button surpasses after the step of the electric capacity threshold values that is provided with in advance:
When the capacitance of button does not have to surpass the electric capacity threshold values that is provided with in advance, then do not respond.
5. like the response method of each described capacitor induction type touch key-press in the claim 1 to 3, it is characterized in that, further comprising the steps of after the step whether said capacitance of judging button diminishes again in the time interval that is provided with in advance:
When the capacitance of button does not diminish again in the time interval that is provided with in advance, then do not respond.
6. the responding system of a capacitor induction type touch key-press is characterized in that, said system comprises:
First judging unit is used to judge whether the capacitance of button surpasses the electric capacity threshold values that is provided with in advance;
Second judging unit is used for when the capacitance of button surpasses the electric capacity threshold values that is provided with in advance, judges whether the capacitance of button diminishes again in the time interval that is provided with in advance;
Response unit is used for when the capacitance of button diminished again in the time interval that is provided with in advance, then responding, and exports corresponding key value.
7. the responding system of capacitor induction type touch key-press as claimed in claim 6 is characterized in that, said system also comprises:
Detecting unit is used to detect the capacitance of button.
8. like the responding system of claim 6 or 7 described capacitor induction type touch key-presss, it is characterized in that said response unit also is used for not having to surpass the electric capacity threshold values of setting in advance when the capacitance of button, does not then respond.
9. like the responding system of claim 6 or 7 described capacitor induction type touch key-presss, it is characterized in that,
Said response unit also is used for when the capacitance of button does not diminish again in the time interval that is provided with in advance, then not responding.
10. a touch control device is characterized in that, said touch control device comprises the responding system of claim 6 or 7 described capacitor induction type touch key-presss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102681273A CN102386904A (en) | 2010-08-31 | 2010-08-31 | Response method and system of capacitive sensing touch key and touch equipment |
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| CN2010102681273A CN102386904A (en) | 2010-08-31 | 2010-08-31 | Response method and system of capacitive sensing touch key and touch equipment |
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| CN102386904A true CN102386904A (en) | 2012-03-21 |
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| CN2010102681273A Pending CN102386904A (en) | 2010-08-31 | 2010-08-31 | Response method and system of capacitive sensing touch key and touch equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266606A (en) * | 2014-07-04 | 2016-01-27 | 佛山市顺德区美的电热电器制造有限公司 | An electric cooker and a control method and a control device thereof |
| CN105361707A (en) * | 2014-09-01 | 2016-03-02 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker and method for controlling same |
| CN108717335A (en) * | 2018-05-21 | 2018-10-30 | 深圳和而泰智能控制股份有限公司 | anti-error detection method and device |
| CN112671387A (en) * | 2020-12-09 | 2021-04-16 | 珠海格力电器股份有限公司 | Touch sensing circuit |
| CN113037268A (en) * | 2021-03-22 | 2021-06-25 | 珠海格力电器股份有限公司 | Method and device for adjusting key touch threshold |
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| CN101116375A (en) * | 2005-11-16 | 2008-01-30 | 松下电器产业株式会社 | heating cooker |
| US20090014309A1 (en) * | 2007-07-11 | 2009-01-15 | Thoma Jeffrey M | Initializing a capacitive sensing switch for a wireless device |
| CN101499793A (en) * | 2008-01-31 | 2009-08-05 | 杭州利尔达科技有限公司 | Capacitor induction type touch press-key based on MCU and measuring method for touch press-key capacitance |
| CN101599769A (en) * | 2009-06-01 | 2009-12-09 | 康佳集团股份有限公司 | A kind of fault-tolerance approach of touch induction buttons |
| CN101623173A (en) * | 2009-07-31 | 2010-01-13 | 美的集团有限公司 | Method for controlling dormant state of cooking stove touch device |
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| CN101116375A (en) * | 2005-11-16 | 2008-01-30 | 松下电器产业株式会社 | heating cooker |
| US20090014309A1 (en) * | 2007-07-11 | 2009-01-15 | Thoma Jeffrey M | Initializing a capacitive sensing switch for a wireless device |
| CN101499793A (en) * | 2008-01-31 | 2009-08-05 | 杭州利尔达科技有限公司 | Capacitor induction type touch press-key based on MCU and measuring method for touch press-key capacitance |
| CN101599769A (en) * | 2009-06-01 | 2009-12-09 | 康佳集团股份有限公司 | A kind of fault-tolerance approach of touch induction buttons |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105266606A (en) * | 2014-07-04 | 2016-01-27 | 佛山市顺德区美的电热电器制造有限公司 | An electric cooker and a control method and a control device thereof |
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| CN105361707A (en) * | 2014-09-01 | 2016-03-02 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooker and method for controlling same |
| CN105361707B (en) * | 2014-09-01 | 2017-11-10 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking pot and its control method |
| CN108717335A (en) * | 2018-05-21 | 2018-10-30 | 深圳和而泰智能控制股份有限公司 | anti-error detection method and device |
| CN108717335B (en) * | 2018-05-21 | 2021-12-21 | 深圳和而泰智能控制股份有限公司 | Anti-error detection method and device |
| CN112671387A (en) * | 2020-12-09 | 2021-04-16 | 珠海格力电器股份有限公司 | Touch sensing circuit |
| CN112671387B (en) * | 2020-12-09 | 2024-02-02 | 珠海格力电器股份有限公司 | Touch sensing circuit |
| CN113037268A (en) * | 2021-03-22 | 2021-06-25 | 珠海格力电器股份有限公司 | Method and device for adjusting key touch threshold |
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Application publication date: 20120321 |