CN109669574A - A kind of anti-misoperation control method of capacitance plate under high humidity environment - Google Patents

A kind of anti-misoperation control method of capacitance plate under high humidity environment Download PDF

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Publication number
CN109669574A
CN109669574A CN201811560174.8A CN201811560174A CN109669574A CN 109669574 A CN109669574 A CN 109669574A CN 201811560174 A CN201811560174 A CN 201811560174A CN 109669574 A CN109669574 A CN 109669574A
Authority
CN
China
Prior art keywords
capacitance plate
control method
under high
high humidity
humidity environment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811560174.8A
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Chinese (zh)
Inventor
郑继清
郭旭
田学林
黄德波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Hongjing Electronics Co Ltd
Original Assignee
Wuhu Hongjing Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhu Hongjing Electronics Co Ltd filed Critical Wuhu Hongjing Electronics Co Ltd
Priority to CN201811560174.8A priority Critical patent/CN109669574A/en
Publication of CN109669574A publication Critical patent/CN109669574A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • G06F3/0418Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A kind of anti-misoperation control method that present invention discloses capacitance plates under high humidity environment, capacitance plate issues pulse signal to processor, processor identify capacitance plate issue pulse signal low wave crest portions as instruction, the processor only identify low wave crest portions 20us to the pulse between 300ms be useful signal.The advantage of the invention is that control method is simple, it is easy to accomplish, enable capacitance plate normal use under high humidity environment, the not applicable environment of more institutes at present and occasions can be suitable for.

Description

A kind of anti-misoperation control method of capacitance plate under high humidity environment
Technical field
The present invention relates to touch screen field more particularly to capacitance touching control screens.
Background technique
With the development of science and technology, the application of capacitance plate is more and more extensive, but under high humidity environment, at malfunction Reason is likely to be breached 95% or more, therefore impacts to using, and mobile phone screen touches failure after having water droplet when such as rainy day.
For in this way it is this should, can only generally dry capacitance plate, could enabling, and can not by software or The improvement of hardware inherently overcomes the problems, such as capacitance plate failure under high humidity environment.
Summary of the invention
The technical problem to be solved by the present invention is to realize that one kind can shield just at high humidity environment holding capacitor (touch-control) The control method often to work.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of capacitance plate is anti-error under high humidity environment Method of controlling operation thereof, capacitance plate issue pulse signal to processor, and processor identifies that capacitance plate issues the low wave crest of pulse signal Part as instruction, the processor only identify low wave crest portions 20us to the pulse between 300ms be useful signal.
The processor identify low wave crest portions 20us to the pulse twice in succession between 300ms be useful signal.
High wave crest portions between two subpulse are in 300ms between 1000ms.
The advantage of the invention is that control method is simple, it is easy to accomplish, enable capacitance plate under high humidity environment just It is often used, the not applicable environment of more institutes at present and occasion can be suitable for.
Detailed description of the invention
The content of width attached drawing every in description of the invention expression is briefly described below:
Fig. 1 is that oscillograph collects the normal waveform diagram for touching capacitance plate;
Fig. 2 is the waveform diagram that oscillograph collects abnormal operation capacitance plate;
Fig. 3 is the waveform diagram of 1 capacitance plate of embodiment;
Fig. 4 is the waveform diagram of 2 capacitance plate of embodiment;
Specific embodiment
As shown in Figure 1, screen without water droplet or when normal ambient humidity, normally clicks capacitance plate, the arteries and veins that capacitance plate issues It is normal to rush signal, voltage is normal, waveform be less than 100ms, and when screen has water droplet or ambient humidity is excessively high, capacitance plate Pulse is abnormal, it is difficult to be received identification, at this time capacitance plate issue low-voltage (compare with it is normal when click generation voltage it is lower), As shown in Fig. 2, its waveform is then to cause to click screen failure or screen is misused greater than 5000ms.
For these reasons, hardware can not be handled at present, can only be solved by improving control method, strategy is as follows:
Strategy 1: as shown in figure 3, when low-voltage width gauge, it is to have that input, which meets and is greater than 20uS and the pulse less than 300ms, Effect;Other pulse inputs are invalid, i.e., conventional click capacitance plate, and capacitance plate identifies user instruction.
Strategy 2: as shown in figure 4, when low-voltage width gauge, it is to have that input, which meets and is greater than 20uS and the pulse less than 300ms, It imitates and continuous 2 inputs is effective;Other pulse inputs are invalid, i.e., conventional double-click capacitance plate, and capacitance plate identifies user instruction.

Claims (3)

1. a kind of anti-misoperation control method of capacitance plate under high humidity environment, capacitance plate issues pulse signal to processor, place It manages device identification capacitance plate and issues the low wave crest portions of pulse signal as instruction, it is characterised in that: the processor only identifies low Wave crest portions are useful signal in 20us to the pulse between 300ms.
2. anti-misoperation control method of the capacitance plate according to claim 1 under high humidity environment, it is characterised in that: described Processor identify low wave crest portions 20us to the pulse twice in succession between 300ms be useful signal.
3. anti-misoperation control method of the capacitance plate according to claim 2 under high humidity environment, it is characterised in that: described High wave crest portions between two subpulses are in 300ms between 1000ms.
CN201811560174.8A 2018-12-20 2018-12-20 A kind of anti-misoperation control method of capacitance plate under high humidity environment Pending CN109669574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811560174.8A CN109669574A (en) 2018-12-20 2018-12-20 A kind of anti-misoperation control method of capacitance plate under high humidity environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811560174.8A CN109669574A (en) 2018-12-20 2018-12-20 A kind of anti-misoperation control method of capacitance plate under high humidity environment

Publications (1)

Publication Number Publication Date
CN109669574A true CN109669574A (en) 2019-04-23

Family

ID=66144519

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811560174.8A Pending CN109669574A (en) 2018-12-20 2018-12-20 A kind of anti-misoperation control method of capacitance plate under high humidity environment

Country Status (1)

Country Link
CN (1) CN109669574A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866252A (en) * 2010-07-09 2010-10-20 苏州瀚瑞微电子有限公司 Waterproof method of capacitance type touch apparatus
CN102156597A (en) * 2011-02-28 2011-08-17 苏州瀚瑞微电子有限公司 Touch detection system and method
CN105573570A (en) * 2014-11-07 2016-05-11 上海科勒电子科技有限公司 Touch press key identifying method of capacitive touch control screen
CN106371754A (en) * 2016-08-31 2017-02-01 成都前锋电子仪器有限责任公司 Environment self-adaptive algorithm of capacitive touch button

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866252A (en) * 2010-07-09 2010-10-20 苏州瀚瑞微电子有限公司 Waterproof method of capacitance type touch apparatus
CN102156597A (en) * 2011-02-28 2011-08-17 苏州瀚瑞微电子有限公司 Touch detection system and method
CN105573570A (en) * 2014-11-07 2016-05-11 上海科勒电子科技有限公司 Touch press key identifying method of capacitive touch control screen
CN106371754A (en) * 2016-08-31 2017-02-01 成都前锋电子仪器有限责任公司 Environment self-adaptive algorithm of capacitive touch button

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Application publication date: 20190423