CN103455385A - Method for restoring non-triggering of capacitor key - Google Patents
Method for restoring non-triggering of capacitor key Download PDFInfo
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- CN103455385A CN103455385A CN2013103715425A CN201310371542A CN103455385A CN 103455385 A CN103455385 A CN 103455385A CN 2013103715425 A CN2013103715425 A CN 2013103715425A CN 201310371542 A CN201310371542 A CN 201310371542A CN 103455385 A CN103455385 A CN 103455385A
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- electric capacity
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- capacity button
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Abstract
The invention relates to a method for restoring non-triggering of a capacitor key. The method is characterized in that when a key response of the capacitor key is available, and after a micro-controller unit (MCU) processes and reads a key value completely, the MCU resets a capacitor key chip within a predetermined time, and releases an inter-integrated circuit (IIC) bus which is connected with the capacitor key chip. By the method disclosed by the invention, a problem that the capacitor key is not triggered can be solved; in particular, the problems that after a capacitor key machine is placed in a high-temperature environment for a certain time, the key does not respond, the complete machine cannot quit, and a suspended crash issue occurs are solved.
Description
Technical field
The present invention relates to the E-Payment field, the restorative procedure that particularly a kind of electric capacity button does not trigger.
Background technology
In the E-Payment field, existing button is mostly used traditional mechanical key, with reading of rank scanning mode interpretation button.The new electric capacity button of introducing the household electric appliances use, refer to Fig. 1, the use flow process is as follows: finger triggers button, the button that causes keytop capacitive reactance CT to change à capacitive reactance variation is identified by special-purpose electric capacity button chip, confirm that the special-purpose electric capacity button of corresponding key value à IC sends interruption to MCU, the corresponding response of MCU key value.Yet electric capacity button machine is placed a period of time under hot environment, does not respond by button after taking out, complete machine can not exit, and false " deadlock " problem occurs, and this is because machine exists temperature to float when high temperature, and keytop has certain capacitive reactance to change.There is fainter response in reaction for several buttons in machine simultaneously, and button constantly responds simultaneously, easily makes the continuous interrupt of chip, takies resource and causes electric capacity button chip not exit and enter endless loop.This problem reaction phenomenon in the time of machine operation is: by button, do not respond, but during button, corresponding vibrating motor and hummer have response (expression has key, is which key is pressed but can not judge), the seemingly-dead machine phenomenon that can not carry out other operations.
In addition, also often there are the problems referred to above in the inferior use environment, such as the machine keytop that constantly rubs with the centre of the palm, be equivalent to respond for a long time a plurality of buttons, this time, the button chip also constantly had interruption to send, cause the electric capacity button to do for a long time response, can not exit after the button that stops rubbing.
Summary of the invention
The purpose of this invention is to provide the restorative procedure that a kind of electric capacity button does not trigger, can solve the problem that the electric capacity button does not trigger.
The present invention adopts following scheme to realize: the restorative procedure that a kind of electric capacity button does not trigger, it is characterized in that: when described electric capacity button has key response, after MCU processes and has read button numerical value, described MCU reset capacitance button chip in one schedule time, and the IIC mouth line that is connected with electric capacity button chip of release.
In an embodiment of the present invention, 100MS of the described schedule time.
In an embodiment of the present invention, the electric capacity button that described electric capacity button is electronic payment terminal.
In an embodiment of the present invention, this restorative procedure is the problem that while solving the roasting machine of high temperature, the electric capacity button does not trigger.
The inventive method is simple, does not need hardware is changed, and has solved the seemingly-dead machine problem that the button mentioned in the background technology does not trigger.
The accompanying drawing explanation
Fig. 1 is existing electric capacity key circuit connection diagram.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The invention provides the restorative procedure that a kind of electric capacity button does not trigger, it is characterized in that: when described electric capacity button has key response, after MCU processes and to have read button numerical value, described MCU reset capacitance button chip in the schedule time, and the IIC mouth line that is connected with electric capacity button chip of release.
Preferably, in the present embodiment, the described schedule time is 100MS, and reset capacitance button chip in this rank time, can guarantee not affect the continuous input of button.And discharge IIC mouth line, can make electric capacity button chip be unlikely to overload of power and phenomenon occur not responding.
In the present embodiment, the electric capacity button that described electric capacity button is electronic payment terminal.In the E-Payment field, terminal is often to be operated in special environment, for example, when high temperature is baked machine, not Trigger Problems just often occurs in the electric capacity button, also have to be exactly, with the centre of the palm machine keytop that constantly rubs, to be equivalent to respond a plurality of buttons for a long time, also can to cause not Trigger Problems.And the present invention can effectively address the above problem, better guaranteed the use of terminal, the error rate of reduction system self.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. the restorative procedure that the electric capacity button does not trigger, it is characterized in that: when described electric capacity button has key response, after MCU processes and to have read button numerical value, described MCU reset capacitance button chip in the schedule time, and the IIC mouth line that is connected with electric capacity button chip of release.
2. the restorative procedure that electric capacity button according to claim 1 does not trigger is characterized in that: described schedule time 100MS.
3. the restorative procedure that electric capacity button according to claim 1 does not trigger is characterized in that: the electric capacity button that described electric capacity button is electronic payment terminal.
4. the restorative procedure that electric capacity button according to claim 1 does not trigger is characterized in that: this restorative procedure is the problem that while solving the roasting machine of high temperature, the electric capacity button does not trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103715425A CN103455385A (en) | 2013-08-23 | 2013-08-23 | Method for restoring non-triggering of capacitor key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103715425A CN103455385A (en) | 2013-08-23 | 2013-08-23 | Method for restoring non-triggering of capacitor key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103455385A true CN103455385A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103715425A Pending CN103455385A (en) | 2013-08-23 | 2013-08-23 | Method for restoring non-triggering of capacitor key |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779460Y (en) * | 2005-03-04 | 2006-05-10 | 合肥工业大学 | Special-purpose control chip and controller for toaster |
| CN101488047A (en) * | 2008-01-16 | 2009-07-22 | 鸿富锦精密工业（深圳）有限公司 | Keyboard with power on/off function |
| 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 |
| CN101834946A (en) * | 2010-05-11 | 2010-09-15 | 丁峰 | Method for performing safe mobile phone payment and mobile phone for performing safe payment |
| CN201624538U (en) * | 2009-12-02 | 2010-11-10 | 广州擎天实业有限公司 | Controller with capacitance induction type buttons for electric rice cooker |
| CN102642519A (en) * | 2012-05-07 | 2012-08-22 | 南通儒尚电动车科技有限公司 | Misoperation prevention monitoring and controlling system of electric vehicle |
| CN202995878U (en) * | 2012-08-21 | 2013-06-12 | 北京神州龙芯集成电路设计有限公司 | Payment terminal with touch type buttons |
-
2013
- 2013-08-23 CN CN2013103715425A patent/CN103455385A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779460Y (en) * | 2005-03-04 | 2006-05-10 | 合肥工业大学 | Special-purpose control chip and controller for toaster |
| CN101488047A (en) * | 2008-01-16 | 2009-07-22 | 鸿富锦精密工业（深圳）有限公司 | Keyboard with power on/off function |
| 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 |
| CN201624538U (en) * | 2009-12-02 | 2010-11-10 | 广州擎天实业有限公司 | Controller with capacitance induction type buttons for electric rice cooker |
| CN101834946A (en) * | 2010-05-11 | 2010-09-15 | 丁峰 | Method for performing safe mobile phone payment and mobile phone for performing safe payment |
| CN102642519A (en) * | 2012-05-07 | 2012-08-22 | 南通儒尚电动车科技有限公司 | Misoperation prevention monitoring and controlling system of electric vehicle |
| CN202995878U (en) * | 2012-08-21 | 2013-06-12 | 北京神州龙芯集成电路设计有限公司 | Payment terminal with touch type buttons |
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Application publication date: 20131218 |