CN102830923A - Capacitance sensing method and mobile terminal - Google Patents
Capacitance sensing method and mobile terminal Download PDFInfo
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- CN102830923A CN102830923A CN2012102789677A CN201210278967A CN102830923A CN 102830923 A CN102830923 A CN 102830923A CN 2012102789677 A CN2012102789677 A CN 2012102789677A CN 201210278967 A CN201210278967 A CN 201210278967A CN 102830923 A CN102830923 A CN 102830923A
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- portable terminal
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- capacitive transducer
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Abstract
The invention provides a capacitance sensing method and a mobile terminal. A metal piece and a capacitance sensor which is electrically connected with the metal piece are arranged on the mobile terminal; and the capacitance sensor is used for sensing capacitance between the metal piece and a ground. The capacitance sensing method comprises the following steps of: responding user operation, and automatically turning on the capacitance sensor; obtaining a variation value of a capacitance value between the metal piece and the ground, which is sensed by the capacitance sensor; detecting weather the variation value of the capacitance value between the metal piece and the ground reaches a pre-set value; and when the variation value of the capacitance value between the metal piece and the ground reaches the pre-set value, automatically locking the touch screen of the mobile terminal. With the adoption of the capacitance sensing method provided by the invention, a mechanical hole can be prevented from being formed in the mobile terminal or a window can be prevented from being arranged on glass, so that the product appearance is not influenced.
Description
Technical field
The invention belongs to the capacitive sensing field, relate in particular to a kind of capacitive sensing method and portable terminal.
Background technology
Along with popularizing and development of intelligent mobile terminal; Large-size screen monitors touch portable terminal has become the main flow form; Large-size screen monitors touch portable terminal and when receiving calls, when near ear, maloperation such as cause hanging up the telephone for preventing that used capacitance touch screen and people face from having an effect, and generally can introduce a sensor and check portable terminal near face, in talking state; Sensor is checked through portable terminal near face; Just close display screen and touch-screen,, play purpose of power saving simultaneously maloperation such as to prevent to hang up the telephone.
The sensor of carrying out this function at present is the infrared light proximity transducer; This infrared light proximity transducer comprises the infrared LED and the inductor that is used to receive infrared light that is used to launch infrared light at least; Because of needs transmit and receive infrared light; Therefore need on mobile terminal case, start shooting tool hole or at windowing on glass; Start tool hole can influence the ID of product, when design and production, technology controlling and process is had relatively high expectations simultaneously, handles bad meeting and brings no function and the problem that the blackhead hair is failure to actuate occurs pressing close to.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of capacitive sensing method and portable terminal, is intended to solve on mobile terminal case start tool hole or at windowing on glass the problem that the infrared light proximity transducer influences the portable terminal outward appearance is installed.
The embodiment of the invention is to realize like this; A kind of capacitive sensing method is applied to a portable terminal, the capacitive transducer that this portable terminal is provided with metalwork and electrically connects with metalwork; This capacitive transducer is used for the electric capacity between sensing metalwork and the ground, and this method may further comprise the steps:
Respond user operation, open capacitive transducer automatically;
Obtain the metalwork that capacitive transducer senses and the changing value of the capacitance between the ground;
Whether the changing value that detects the capacitance between metalwork and the ground reaches a preset value; And
When the changing value of the capacitance between metalwork and the ground reaches a preset value, automatically lock the touch-screen of portable terminal.
Another purpose of the embodiment of the invention is to provide a kind of portable terminal, the capacitive transducer that this portable terminal is provided with metalwork and electrically connects with metalwork, and this capacitive transducer is used for the capacitance between sensing metalwork and the ground, and this portable terminal includes:
Opening module is used to respond user operation, opens capacitive transducer automatically;
Acquisition module is used to obtain the metalwork that capacitive transducer senses and the changing value of the capacitance between the ground;
Detection module, whether the changing value that is used to detect the capacitance between metalwork and the ground reaches a preset value; And
Locking module is used for when the changing value of the capacitance between metalwork and the ground reaches a preset value, automatically locking the touch-screen of portable terminal.
In embodiments of the present invention, the capacitive sensing method through the metalwork on the portable terminal as electrode come sensed object near the time changes in capacitance determine whether to lock the touch-screen of portable terminal, be not intended to when avoiding making a phone call hang up the telephone with this.
Description of drawings
The capacitive sensing method flow diagram that Fig. 1 embodiment of the invention provides.
Fig. 2 is the hardware structure diagram of the portable terminal that provides of the embodiment of the 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.
As one embodiment of the present of invention; Fig. 1 shows the method flow diagram of the capacitive sensing that the embodiment of the invention provides; This method has been used a portable terminal; The capacitive transducer that this portable terminal is provided with metalwork and electrically connects with metalwork, this capacitive transducer is used for the electric capacity between sensing metalwork and the ground, and it comprises that specifically step is:
Step S601 responds user operation, opens capacitive transducer automatically.
Step S602 obtains the metalwork that capacitive transducer senses and the changing value of the capacitance between the ground.
Step S603, whether the changing value that detects the capacitance between metalwork and the ground reaches a preset value.
Step S604 when the changing value of the capacitance between metalwork and the ground reaches a preset value, automatically locks the touch-screen of portable terminal.
Further, capacitive sensing method of the present invention is further comprising the steps of: whether detecting has a telephone operation; And wherein, when telephone operation is arranged, open capacitive transducer automatically.
Further; Capacitive sensing method of the present invention is further comprising the steps of: when the changing value of the capacitance between metalwork and the ground reaches a preset value; Close display screen and backlight when automatically locking the touch-screen of portable terminal, can reach purpose of power saving with this.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium; Described storage medium is like ROM/RAM, disk, CD etc.
Fig. 2 is the hardware structure diagram of the portable terminal 100 that provides of the embodiment of the invention.In embodiments of the present invention, this portable terminal 100 is provided with metalwork 10 and reaches the capacitive transducer 20 that electrically connects with metalwork 10.This capacitive transducer 20 is used for the capacitance between sensing metalwork 10 and the ground.This mobile device 100 includes an opening module 31, an acquisition module 32, a detection module 33 and a locking module 34.
This opening module 31 is used to respond user operation, opens capacitive transducer 20 automatically.This acquisition module 32 is used to obtain the metalwork 10 that capacitive transducer 20 senses and the changing value of the capacitance between the ground.Whether the changing value that this detection module 33 is used to detect the capacitance between metalwork 10 and the ground reaches a preset value.This locking module 34 is used for when the changing value of the capacitance between metalwork 10 and the ground reaches a preset value, automatically locking the touch-screen of portable terminal 100.
In this embodiment, the metal section and part of the metalwork that metalwork 10 includes but not limited to use for decorative appearance on the portable terminal 100, portable terminal interior metal support, certain device.The metalwork surface that decorative appearance is used allows megohmite insulant to cover.Portable terminal metalwork material includes but not limited to be aluminium alloy, stainless steel, Copper Foil.Portable terminal metalwork shape is not done requirement, and area gets final product more than dividing equally centimetre 2.Portable terminal metalwork electrode and sensor input pin connected mode include but not limited to be shell fragment, coaxial cable.
Further, this portable terminal 100 also comprises a detecting module 35.Whether this detecting module 35 is used for detecting has a telephone operation.This opening module 31 is used for when telephone operation is arranged, and opens capacitive transducer 20 automatically.
Further, when the changing value that this locking module 34 also is used for the capacitance between metalwork and ground reaches a preset value, close display screen and backlight when automatically locking mobile terminal touch screen, reach purpose of power saving with this.
Through capacitive sensing method of the present invention; Can through the metalwork on the portable terminal 100 10 as electrode come sensed object near the time changes in capacitance determine whether to lock the display screen of portable terminal 100 and close backlight; Be not intended to when avoiding making a phone call hang up the telephone with this; Infrared light proximity transducer under this method and the prior art, can not need perforate or on mobile terminal case at windowing on glass; Technology controlling and process is simple, does not have the risk that the blackhead hair is failure to actuate; And when the portable terminal outward appearance needs the metal finishing sheet, can utilize existing metal finishing sheet to realize, avoid influencing the portable terminal outward appearance.
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 (6)
1. capacitive sensing method; Be applied to a portable terminal; The capacitive transducer that this portable terminal is provided with metalwork and electrically connects with metalwork, this capacitive transducer is used for the capacitance between sensing metalwork and the ground, it is characterized in that: this method may further comprise the steps:
Respond user operation, open capacitive transducer automatically;
Obtain the metalwork that capacitive transducer senses and the changing value of the capacitance between the ground;
Whether the changing value that detects the capacitance between metalwork and the ground reaches a preset value; And
When the changing value of the capacitance between metalwork and the ground reaches a preset value, automatically lock the touch-screen of portable terminal.
2. capacitive sensing method as claimed in claim 1 is characterized in that: this method is further comprising the steps of:
Whether detecting has a telephone operation; And
Wherein, when telephone operation is arranged, open capacitive transducer automatically.
3. capacitive sensing method as claimed in claim 1; It is characterized in that: this method is further comprising the steps of: when the changing value of the capacitance between metalwork and the ground reaches a preset value, close display screen and backlight when automatically locking the touch-screen of portable terminal.
4. the capacitive transducer that portable terminal, this portable terminal are provided with metalwork and electrically connect with metalwork, this capacitive transducer is used for the capacitance between sensing metalwork and the ground, it is characterized in that: this portable terminal includes:
Opening module is used to respond user operation, opens capacitive transducer automatically;
Acquisition module is used to obtain the metalwork that capacitive transducer senses and the changing value of the capacitance between the ground;
Detection module, whether the changing value that is used to detect the capacitance between metalwork and the ground reaches a preset value; And
Locking module is used for when the changing value of the capacitance between metalwork and the ground reaches a preset value, automatically locking the touch-screen of portable terminal.
5. portable terminal as claimed in claim 4 is characterized in that: this portable terminal also comprises a detecting module, and whether this detecting module is used for detecting has a telephone operation; And
Wherein, this opening module is used for when telephone operation is arranged, and opens capacitive transducer automatically.
6. portable terminal as claimed in claim 4 is characterized in that: when the changing value that this locking module also is used for the capacitance between metalwork and ground reaches a preset value, close display screen and backlight when automatically locking mobile terminal touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278967.7A CN102830923B (en) | 2012-08-06 | 2012-08-06 | Capacitance sensing method and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278967.7A CN102830923B (en) | 2012-08-06 | 2012-08-06 | Capacitance sensing method and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102830923A true CN102830923A (en) | 2012-12-19 |
| CN102830923B CN102830923B (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210278967.7A Expired - Fee Related CN102830923B (en) | 2012-08-06 | 2012-08-06 | Capacitance sensing method and mobile terminal |
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| Country | Link |
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| CN (1) | CN102830923B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281439A (en) * | 2013-05-08 | 2013-09-04 | 上海鼎讯电子有限公司 | Method for utilizing TP (touch panel) device for simulating proximity sensor in mobile phone |
| CN103677471A (en) * | 2013-11-27 | 2014-03-26 | 上海天奕达电子科技有限公司 | Misoperation processing method and system for touch screen terminals |
| CN107438998A (en) * | 2017-06-05 | 2017-12-05 | 深圳市汇顶科技股份有限公司 | Close detection means and method, close to inductive pick-up, terminal device |
| WO2018086382A1 (en) * | 2016-11-11 | 2018-05-17 | 中兴通讯股份有限公司 | Screen backlight control system and method for smart device |
| CN109373887A (en) * | 2018-09-28 | 2019-02-22 | 北京小米移动软件有限公司 | Human body distance detection mould group and electronic equipment |
| CN109756625A (en) * | 2018-12-28 | 2019-05-14 | Oppo广东移动通信有限公司 | control method, control device, electronic device and storage medium |
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| US20100207886A1 (en) * | 2009-02-13 | 2010-08-19 | Samsung Electronics Co., Ltd. | Apparatus and method for reducing battery power consumption in a portable terminal |
| CN102185967A (en) * | 2011-04-08 | 2011-09-14 | 惠州Tcl移动通信有限公司 | Communication terminal capable of controlling backlight and misoperation of touch screen according to call mode and method |
| CN102387252A (en) * | 2011-10-11 | 2012-03-21 | 惠州Tcl移动通信有限公司 | Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment |
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2012
- 2012-08-06 CN CN201210278967.7A patent/CN102830923B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100207886A1 (en) * | 2009-02-13 | 2010-08-19 | Samsung Electronics Co., Ltd. | Apparatus and method for reducing battery power consumption in a portable terminal |
| CN102185967A (en) * | 2011-04-08 | 2011-09-14 | 惠州Tcl移动通信有限公司 | Communication terminal capable of controlling backlight and misoperation of touch screen according to call mode and method |
| CN102387252A (en) * | 2011-10-11 | 2012-03-21 | 惠州Tcl移动通信有限公司 | Handheld equipment and method for preventing touch screen from spurious triggering in call process of handheld equipment |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281439A (en) * | 2013-05-08 | 2013-09-04 | 上海鼎讯电子有限公司 | Method for utilizing TP (touch panel) device for simulating proximity sensor in mobile phone |
| CN103677471A (en) * | 2013-11-27 | 2014-03-26 | 上海天奕达电子科技有限公司 | Misoperation processing method and system for touch screen terminals |
| CN103677471B (en) * | 2013-11-27 | 2017-01-04 | 上海卓易科技股份有限公司 | The processing method of touch screen terminal maloperation and system thereof |
| WO2018086382A1 (en) * | 2016-11-11 | 2018-05-17 | 中兴通讯股份有限公司 | Screen backlight control system and method for smart device |
| CN107438998A (en) * | 2017-06-05 | 2017-12-05 | 深圳市汇顶科技股份有限公司 | Close detection means and method, close to inductive pick-up, terminal device |
| WO2018223252A1 (en) * | 2017-06-05 | 2018-12-13 | 深圳市汇顶科技股份有限公司 | Proximity detection apparatus and method, proximity sensor, and terminal device |
| CN109373887A (en) * | 2018-09-28 | 2019-02-22 | 北京小米移动软件有限公司 | Human body distance detection mould group and electronic equipment |
| CN109756625A (en) * | 2018-12-28 | 2019-05-14 | Oppo广东移动通信有限公司 | control method, control device, electronic device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102830923B (en) | 2017-02-22 |
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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 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |