CN106354321A - Pressure-sensing button identification method - Google Patents
Pressure-sensing button identification method Download PDFInfo
- Publication number
- CN106354321A CN106354321A CN201610802822.0A CN201610802822A CN106354321A CN 106354321 A CN106354321 A CN 106354321A CN 201610802822 A CN201610802822 A CN 201610802822A CN 106354321 A CN106354321 A CN 106354321A
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- China
- Prior art keywords
- pressure
- value
- button
- ratio
- threshold value
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
Abstract
The invention discloses a pressure-sensing button identification method. Each pressure sensor is provided with a plurality of pressure sensing units, and each pressure sensing unit outputs a pressure signal correspondingly; buttons and pressure sensing units are in one to one correspondence relationship; a trigger threshold and a proportion threshold are set. When the pressure signal of a certain button is found to be bigger than the trigger threshold, the relationship between the pressure signal and the proportion threshold shall be judged; if the proportional relation meets the requirement of the proportion threshold, the button is considered as a legal button; otherwise, the button is considered as an illegal button. The pressure-sensing button identification method can ensure both the button identification accuracy and users' experience at the same time, and can improve the accuracy of identification of pressure-sensing buttons without weakening the users' use experience.
Description
Technical field
The invention belongs to technical field of touch control, particularly to a kind of recognition methodss of pressure-sensitive touch controlled key.
Background technology
In electronics field, there is application widely by key technology.As controllable device, for example, in household electrical appliance
Television set, microwave oven, lampblack absorber etc., mobile phone, digital camera, electronic reader etc. in personal digital equipment, these equipment
Above more or less there is key device.
All be equipped with and gone up forcetouch technology with a new generation of Apple mobile device, its good experience and
Easy assembly technology makes to also obtain the favor of more and more manufacturers based on the key device of pressure sensitivity technology.And current pressure sensitivity
The hardware designs of formula button still follow the design of capacitance key, and that is, a sensing unit corresponds to a key induced area
Domain.There is obvious drawback on pressure-sensitive button, when user exists in this button determination processing mode that single sensing unit is carried out
Exist during the pressing of button periphery be triggered may be although false touch can be prevented by improving threshold value, but the carrying of trigger sensitivity
Height requires user to use during button from another point of view again to be needed larger triggering dynamics, reduces user experience.
As patent application 201510641420.2 discloses a kind of recognition by pressing keys device and method based on pressure transducer,
Described included based on the recognition by pressing keys device of pressure transducer: detection module, for obtaining the first induction zone of pressure transducer
3rd pressure value of the first pressure value in domain, the second pressure value of the second induction region and the 3rd induction region, described first sense
Region, described second induction region and described 3rd induction region is answered to be disposed adjacent successively；Comparing module, for calculating described
One pressure value and the pressure difference value of described 3rd pressure value, and described pressure difference value is compared with default first threshold；
Identification module, for described pressure difference value be less than or equal to described first threshold when, according to described second pressure value carry out by
Key identifies.Although raising threshold value is passed through in this patent application can prevent false touch, the raising of this trigger sensitivity requires again
Need larger triggering dynamics when user is using button, be not easy to user and be controlled.
Content of the invention
Based on this, therefore it is an object of the invention to provide a kind of pressure-sensitive recognition by pressing keys method, this recognition methods is not
While reducing user experience, improve the accuracy of pressure-sensitive recognition by pressing keys.
For achieving the above object, the technical scheme is that
A kind of pressure-sensitive recognition by pressing keys method is it is characterised in that in methods described, each pressure transducer is provided with many
Individual (a plurality of) pressure sensitive unit, each pressure sensitive unit one pressure signal of corresponding output；Key position and feeling of stress
Unit is answered to be in corresponding relation；And set an activation threshold value and proportion threshold value, it is more than triggering when a certain key press signal is detected
During threshold value, calculate the proportionate relationship of two pressure signals and its pressure signal around respectively, proportionate relationship meets proportion threshold value
Then it is judged to legal button, otherwise for illegal button.
Described activation threshold value, this activation threshold value is the physical quantity related to pressure signal size, and triggering threshold values can basis
Practical situation is manually set；Described proportion threshold value, this proportion threshold value is related to two pressure signal size ratios；Described ratio
Threshold values is 0.1-0.5.
Further, on the left of the button of described leftmost edge, on the right side of the button of rightmost edges, it is respectively arranged with a feeling of stress
Answer unit；So that ratio threshold can be calculated.
And further, the step of realizing of methods described is:
101st, obtain the pressure value of each button of key zone；
102nd, detect described pressure value successively, and determine whether that the pressure value of button, more than activation threshold value, is
Then carry out next step, otherwise reacquire pressure value；
103rd, calculate the ratio value of two pressure values and this key press numerical value about this button respectively；
104th, two ratio values of 103 steps acquisitions and ratio threshold are compared, if two ratio values are respectively less than
Proportion threshold value, then this button be judged to legal touch-control, be otherwise judged to illegal touch-control.
In described step 101, pressure signal is transferred to pressure transducer by pressure sensitive unit, then passes through analog-digital converter
Pressure signal is changed, obtains pressure value.
In described step 103, calculate two pressure values and the ratio value of this key press numerical value about this button, obtain
Two ratio values, ratio value 1=pressure value s_2/ pressure value s_3, ratio value 2=pressure value s_4/ pressure value s_3.
The present invention passes through to adjust the triggering dynamics that activation threshold value can set button, and adjustment proportion threshold value can set button
Trigger range, processed the problem of recognition by pressing keys accuracy and user's health check-up simultaneously, user experience can not have been reduced
Meanwhile, improve the accuracy of pressure-sensitive recognition by pressing keys.
Brief description
Fig. 1 is the press-key structure figure that the present invention is implemented.
Fig. 2 is the identification process figure that the present invention is implemented.
Fig. 3 is the touch-control schematic diagram that the present invention is implemented.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
The present invention provides a kind of pressure-sensitive recognition by pressing keys method, is more than activation threshold value when a certain key press signal is detected
When, calculate the proportionate relationship of two pressure signals and its pressure signal around respectively, proportionate relationship meets proportion threshold value and then sentences
It is set to legal touch controlled key, otherwise for illegal touch controlled key.
As shown in figure 1, being the structural representation of touch controlled key, in an embodiment of the present invention, setting pressure on key panel 101
Force transducer 102, pressure transducer 102 comprises multiple pressure sensitive units 103, and pressure sensitive unit corresponds to 4 key zones
Domain 104 (abbreviation button), due to will calculate so the ratio threshold of 4 buttons, so, on the left of the button of leftmost edge, the rightest
It is respectively arranged with a pressure sensitive unit on the right side of the button at edge, be thus provided with 6 pressure sensitive units, middle 4
Pressure sensitive unit is corresponding with key zone.
Set two judgment thresholds: activation threshold value and proportion threshold value.It is assumed that pre-seting activation threshold value is 100.It is assumed that it is default
Value proportion threshold value is 0.3.
As shown in Fig. 2 the present invention is realized specific recognition methodss being:
S101, the transfer pressure induced signal of acquisition button, and obtain the pressure value of 6 pressure sensitive units；
S102, successively 6 pressure values and activation threshold value are contrasted, when finding that certain pressure value is more than firing level
Execution step s103 during value, otherwise re-executes step s101.
S103, calculate the ratio of two pressure values and this pressure value about this pressure value respectively, such as No. 3 feelings of stress
Answer cell pressure numerical value 120 to be more than activation threshold value, then calculate ratio value 1=pressure value s_2/ pressure value s_3, ratio value 2
=pressure value s_4/ pressure value s_3 (s_1 > no, s_2 > button 1, s_3 > button 2, s_4 > button
3, s_5 > button 4, s_6 > no, s_1 is the pressure value of the pressure sensitive unit on the left of the button of leftmost edge, s_6
Pressure value for the pressure sensitive unit on the right side of the button of rightmost edges).
S104, ratio value 1, ratio value 2 are compared with ratio threshold respectively, when ratio value 1 is both less than with ratio value 2
When 0.3, s_3 is effective button triggering, otherwise invalid.
S105, continue executing with step s101, circulation is detected, obtain pressure value.
As shown in Figure 3 it is assumed that having 3 pressure sensitive units (button), number consecutively 1,2,3.
When user is pressed against No. 2 buttons, when No. 2 keys upwards of user's pressing, when user is pressed against No. 2 button right sides
During side, 3 pressure sensitive cell signal changes are all different.
As can be seen here, different in the proportionate relationship of diverse location signal intensity, when user is pressed against in No. 2 key induced areas
When, No. 2 pressure sensitive element output signals are maximum, and the pressure signal of 1, No. 3 outputs is less, according to this proportionate relationship, permissible
Confirm the legitimacy of user's pressing, that is, signal proportion relation meets and can confirm during certain condition that button is effective.
The present invention passes through to adjust the triggering dynamics that activation threshold value can set button, and adjustment proportion threshold value can set button
Trigger range, processed the problem of recognition by pressing keys accuracy and user's health check-up simultaneously, user experience can not have been reduced
Meanwhile, improve the accuracy of pressure-sensitive recognition by pressing keys.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of pressure-sensitive recognition by pressing keys method is it is characterised in that in methods described, each pressure transducer is provided with multiple
Pressure sensitive unit, each pressure sensitive unit one pressure signal of corresponding output；Key position and pressure sensitive unit are in right
Should be related to；And set an activation threshold value and proportion threshold value, when a certain key press signal is detected more than activation threshold value, respectively
Calculate the proportionate relationship of two pressure signals and its pressure signal around, proportionate relationship meet proportion threshold value be then judged to legal
Button, otherwise for illegal button.
2. it is characterised in that described activation threshold value, this activation threshold value is pressure-sensitive recognition by pressing keys method as claimed in claim 1
The physical quantity related to pressure signal size, triggering threshold values can be manually set according to practical situation；Described proportion threshold value, this ratio
Example threshold value is related to two pressure signal size ratios；Described ratio threshold is 0.1-0.5.
3. pressure-sensitive recognition by pressing keys method as claimed in claim 1 it is characterised in that on the left of the button of described leftmost edge,
It is respectively arranged with a pressure sensitive unit on the right side of the button of right hand edge；So that ratio threshold can be calculated.
4. pressure-sensitive recognition by pressing keys method as claimed in claim 3 is it is characterised in that the step of realizing of methods described is:
101st, obtain the pressure value of each button of key zone；
102nd, detect described pressure value successively, and determine whether that the pressure value of button, more than activation threshold value, is to enter
Row next step, otherwise reacquires pressure value；
103rd, calculate the ratio value of two pressure values and this key press numerical value about this button respectively；
104th, two ratio values of 103 steps acquisitions and ratio threshold are compared, if two ratio values are respectively less than ratio
Threshold value, then this button be judged to legal touch-control, be otherwise judged to illegal touch-control.
5. pressure-sensitive recognition by pressing keys method as claimed in claim 4 is it is characterised in that in described step 101, pressure sensitive list
Pressure signal is transferred to pressure transducer by unit, then by analog-digital converter, pressure signal is changed, and obtains pressure value.
6. pressure-sensitive recognition by pressing keys method as claimed in claim 5 is it is characterised in that in described step 103, calculate this button
Left and right two pressure value and the ratio value of this key press numerical value, obtain two ratio values, ratio value 1=pressure value s_2/
Pressure value s_3, ratio value 2=pressure value s_4/ pressure value s_3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802822.0A CN106354321A (en) | 2016-09-05 | 2016-09-05 | Pressure-sensing button identification method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610802822.0A CN106354321A (en) | 2016-09-05 | 2016-09-05 | Pressure-sensing button identification method |
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| CN106354321A true CN106354321A (en) | 2017-01-25 |
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| CN201610802822.0A Pending CN106354321A (en) | 2016-09-05 | 2016-09-05 | Pressure-sensing button identification method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106850907A (en) * | 2017-02-17 | 2017-06-13 | 广东欧珀移动通信有限公司 | Mobile terminal shell component and mobile terminal with button |
| CN109818602A (en) * | 2019-01-31 | 2019-05-28 | 华勤通讯技术有限公司 | A kind of pressure sensitivity key and its trigger the method for keypress function, electric terminal equipment |
| CN110794989A (en) * | 2019-10-23 | 2020-02-14 | 维沃移动通信有限公司 | Key response method and electronic equipment |
| CN112539858A (en) * | 2019-09-20 | 2021-03-23 | 北京万维智能技术有限公司 | Identification method |
| CN113835935A (en) * | 2021-08-11 | 2021-12-24 | 歌尔科技有限公司 | Key testing method and device and readable storage medium |
| WO2023273039A1 (en) * | 2021-06-30 | 2023-01-05 | 歌尔股份有限公司 | Accidental-touch prevention method, and wearable device and storage medium |
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| CN1514341A (en) * | 2003-03-27 | 2004-07-21 | 刘二中 | Device possessing character input function and method |
| CN103455151A (en) * | 2012-03-02 | 2013-12-18 | 微软公司 | Key strike determination for pressure sensitive keyboard |
| CN105357367A (en) * | 2015-09-30 | 2016-02-24 | 努比亚技术有限公司 | Keystroke identification device and method based on pressure sensor |
| CN105511784A (en) * | 2015-12-02 | 2016-04-20 | 北京新美互通科技有限公司 | Information input method, device and mobile terminal based on pressure detection |
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- 2016-09-05 CN CN201610802822.0A patent/CN106354321A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1514341A (en) * | 2003-03-27 | 2004-07-21 | 刘二中 | Device possessing character input function and method |
| CN103455151A (en) * | 2012-03-02 | 2013-12-18 | 微软公司 | Key strike determination for pressure sensitive keyboard |
| CN105357367A (en) * | 2015-09-30 | 2016-02-24 | 努比亚技术有限公司 | Keystroke identification device and method based on pressure sensor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106850907A (en) * | 2017-02-17 | 2017-06-13 | 广东欧珀移动通信有限公司 | Mobile terminal shell component and mobile terminal with button |
| CN109818602A (en) * | 2019-01-31 | 2019-05-28 | 华勤通讯技术有限公司 | A kind of pressure sensitivity key and its trigger the method for keypress function, electric terminal equipment |
| CN112539858A (en) * | 2019-09-20 | 2021-03-23 | 北京万维智能技术有限公司 | Identification method |
| CN110794989A (en) * | 2019-10-23 | 2020-02-14 | 维沃移动通信有限公司 | Key response method and electronic equipment |
| WO2023273039A1 (en) * | 2021-06-30 | 2023-01-05 | 歌尔股份有限公司 | Accidental-touch prevention method, and wearable device and storage medium |
| CN113835935A (en) * | 2021-08-11 | 2021-12-24 | 歌尔科技有限公司 | Key testing method and device and readable storage medium |
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Application publication date: 20170125 |