CN102640250A - Human body electromagnetic induction switchgear and method for starting electrical equipment - Google Patents
Human body electromagnetic induction switchgear and method for starting electrical equipment Download PDFInfo
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- CN102640250A CN102640250A CN2009801613310A CN200980161331A CN102640250A CN 102640250 A CN102640250 A CN 102640250A CN 2009801613310 A CN2009801613310 A CN 2009801613310A CN 200980161331 A CN200980161331 A CN 200980161331A CN 102640250 A CN102640250 A CN 102640250A
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- human body
- electromagnetic induction
- electric capacity
- body electromagnetic
- switch device
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- 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
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
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- Keying Circuit Devices (AREA)
Abstract
A human body electromagnetic induction switchgear (100) and a method for activating an electrical equipment. The human body electromagnetic induction switchgear (100) comprises a detecting circuit (101) for detecting an electromagnetic induction signal of the human body and a driving circuit (102) connected with the detecting circuit (101). The driving circuit (102) generates a driving signal based on the output of the detecting circuit (101) to switch on the power supply of the electrical equipment or activate the main circuit (120) of the electrical equipment.
Description
Human body electromagnetic induction switch device and the method for starting electric equipment
Technical field
The present invention relates to electric equipment, more specifically to a kind of human body electromagnetic induction switch device for being used to start electric equipment.Background technology
Existing human induction switch is for example infrared, in audio-switch, is usually that normal opened type is powered or compartment is powered to the power supply of its sensor circuit and main circuit.Normal opened type power supply mode is due to a direct power supply, and waste of energy is larger.Compartment is powered due to having a time slot between powering twice, when in time slot ON switch in need, ability starting switch main circuit work after waiting for a period of time, therefore has the delay of a long period.And this delay can bring inconvenience.For example, for the illuminating lamp used in corridor, expecting human induction switch with minimum delay to connect the power supply of illuminating lamp.Also there is similar demand in other application place, such as corridor, warehouse, underpass, the auto-open-close lamp place such as toilet.
In addition, city or having the place of mankind's activity, the power frequency ripple fluctuation for filling with electromagnetic wave, especially 50/60HZ is particularly huge（Peak-to-peak value can reach about 220V), also there are other electromagnetic waves such as GSM signals etc..In this environment, electromagnetic induction signal can be all produced on human body.The content of the invention
The technical problem to be solved in the present invention is, the above-mentioned power consumption for prior art is big and defect of response time delay there is provided it is a kind of only when human body touch or it is close when just startup electric equipment switching device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of human body electromagnetic induction switch device is constructed, for starting electric equipment, including for detecting the detecting circuit of human body electromagnetic induction signal；The drive circuit of the detecting circuit is connected to, its output based on the detecting circuit produces drive signal, to connect electric equipment power supply or wake up electric equipment circuit board.
In human body electromagnetic induction switch device of the present invention, the detecting circuit in human body touch or
Output voltage or current signal during human body proximity.
In human body electromagnetic induction switch device of the present invention, the detecting circuit includes diode, electric capacity and conductive contact film and/or contact point；Wherein, described diode one end is connected with the conductive contact film and/or contact point, the other end is connected with one end of the electric capacity, and the other end of the electric capacity is grounded or in human body electromagnetic induction switch device of the present invention, and the electric capacity two ends are also parallel with resistance.
In human body electromagnetic induction switch device of the present invention, the drive circuit includes controllable level-conversion circuit module, analog switch or S3.
In human body electromagnetic induction switch device of the present invention, the detecting circuit includes FET and coupled electric capacity, first resistor, second resistance and conductive contact film and/or contact point, and the drive circuit is controllable level-conversion circuit module.
In human body electromagnetic induction switch device of the present invention, the FET is P-channel field-effect transistor (PEFT) pipe, its source electrode is by the capacity earth and is connected to the Enable Pin of the controllable level-conversion circuit module, drain electrode and meets VCC, grid and connect the conductive contact film and/or contact point, the first resistor is connected between the grid of the P-channel field-effect transistor (PEFT) pipe and ground, and the second resistance is in parallel with the electric capacity.
In human body electromagnetic induction switch device of the present invention, the FET is N-channel FET, its source electrode meets VCC, drains by the capacity earth and be connected to the Enable Pin of the controllable level-conversion circuit module, grid and connect the conductive contact film and/or contact point, the first resistor is connected between the grid of the P-channel field-effect transistor (PEFT) pipe and VCC, and the second resistance is in parallel with the electric capacity.
The technical solution adopted for the present invention to solve the technical problems is：A kind of method for starting electric equipment is provided, including：
Human body electromagnetic induction signal is detected, and exports the induced signal；
Drive signal is generated based on the induced signal；And
The drive signal is responded to connect electric equipment power supply or wake up electric equipment circuit board.
In the method for startup electric equipment of the present invention, it is characterised in that voltage or current signal that the induced signal includes human body touch or produced when close.
Implement the present invention, have the advantages that：Because human body electromagnetic induction signal detecting circuit does not consume
Electricity can detect the voltage change brought of human body electromagnetic induction signal, and voltage is sent into drive circuit, therefore can save electric energy, and without the delay caused by being spaced power supply.In addition, starting the scheme of electric equipment using human body electromagnetic induction signal of the present invention, due to that can detect whether user is close to or touch sensor position, therefore it can also judge whether user has the reference of illegal operation behavior as electronic system.And due to the bulky capacitor effect that this programme needs are produced by human body, humidity such as water droplet, fog etc. can be overcome to disturb well, and can preferably overcome external electrical field catastrophe.Simultaneously as sensor can be non-exposed, it can avoid wearing and tearing, corrode, improve service life.Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the structural representation of human body electromagnetic induction switch device of the present invention；
Fig. 2 is the flow chart for the method that the present invention starts electric equipment；
Fig. 3 A are the circuit diagrams of human body electromagnetic induction switch device first embodiment of the present invention；Fig. 3 B are the circuit diagrams of human body electromagnetic induction switch device second embodiment of the present invention；Fig. 3 C are the circuit diagrams of human body electromagnetic induction switch device 3rd embodiment of the present invention；Fig. 3 D are the circuit diagrams of human body electromagnetic induction switch device fourth embodiment of the present invention；Fig. 3 E are the circuit diagrams of the embodiment of human body electromagnetic induction switch device the 5th of the present invention；Fig. 3 F are the circuit diagrams of human body electromagnetic induction switch device sixth embodiment of the present invention；Fig. 4 A are the schematic diagram of the voltage of human body relative to the earth in the case of having industrial-frequency alternating current around；Fig. 4 B are the schematic diagram of institute's output voltage after diode capacitance detecting circuit detects human body electromagnetic induction signal according to the embodiment of human body electromagnetic induction switch device one of the present invention；
Fig. 4 C are according to the embodiment of human body electromagnetic induction switch device one of the present invention, the schematic diagram of the electric signal of drive circuit output.Embodiment
As shown in figure 1, human body electromagnetic induction switch device 100 includes detecting circuit 101 and drive circuit 102.The not power consumption of detecting circuit 101 is that can detect voltage change that human body brought by induced electricity magnetic wave (i.e. human body electromagnetic induction signal）, and voltage signal is sent to drive circuit 102, by drive circuit 102
Drive signal is produced, to start electric equipment main circuit 120, for example, connecting the power supply of electric equipment main circuit 120 or waking up the circuit board of electric equipment main circuit 120.
In operation, the method for electric equipment is started as shown in Fig. 2 in step 210, detecting circuit 101 detects human body electromagnetic induction signal, and exports induced signal；In step 220, drive circuit 102 is based on the induced signal and generates drive signal；In step 230, respond the drive signal and connect electric equipment power supply or wake up electric equipment circuit board.
In embodiments of the invention, using diode, electric capacity and conductive contact film and/or contact point formation exchange detecting circuit, alternate electrical signal is changed into the direct current signal of fluctuation.And resistance is used, for accelerating human body to leave the speed of rear electric capacity electric discharge, and is kept without human body proximity or detecting circuit exports the stabilization of electric signal when contact.The effect of wherein resistance is for speed-up capacitor electric discharge and stable level.As shown in Fig. 3 A-Fig. 3 D, design the detecting circuit that contact point/piece of a set of simple diode, electric capacity and conduction is constituted, with the subsidiary big resistance of unification to prevent floating charge buildup, conductive contact point/piece 124 is (directly exposed or have covering all right）The voltage change brought when for detecting human body touch or being close.
Its operation principle is：When nobody touches, output signal is stable level；Work as someone（Represented with finger 110）Touching is close, will produce the voltage of change.When voltage exceedes thresholding, the power supply of detecting circuit driving below will be made to turn on or wake-up circuit plate.Drive circuit can be such as gate-controlled switch, analog switch or FET circuit.
As shown in Figure 3A, detecting circuit includes diode Dl, electric capacity C1 and conductive contact film and/or contact point 124, wherein, the diode D1 negative terminals are connected with conductive contact film and/or contact point 124, anode is connected with electric capacity C1 one end, another termination VCC of electric capacity.Electric capacity C1 two ends are also parallel with resistance Rl.Drive circuit is gate-controlled switch or electronic switch S l.
As shown in Figure 3 B, detecting circuit includes diode D2, electric capacity C2 and conductive contact film and/or contact point 124, wherein, the diode D2 anodes are connected with conductive contact film and/or contact point 124, negative terminal is connected with electric capacity C2 one end, the other end ground connection of electric capacity.Electric capacity C2 two ends are also parallel with resistance R2.Drive circuit is gate-controlled switch or electronic switch S2.
As shown in Figure 3 C, detecting circuit includes diode D3, electric capacity C3 and conductive contact film and/or contact point 124, wherein, the diode D3 anodes are connected with conductive contact film and/or contact point 124, negative terminal
It is connected with electric capacity C3 one end, the other end ground connection of electric capacity.Electric capacity C3 two ends are also parallel with resistance R3.Drive circuit is controllable level-conversion circuit module U1.
As shown in Figure 3 D, detecting circuit includes diode D4, electric capacity C4 and conductive contact film and/or contact point 124, wherein, the diode D4 anodes are connected with conductive contact film and/or contact point 124, negative terminal is connected with electric capacity C4 one end, the other end ground connection of electric capacity.Electric capacity C4 two ends are also parallel with resistance R4.Drive circuit is analog switch S3.
Wherein gate-controlled switch or electronic switch S l, S2 is a kind of circuit.Analog switch S3 is a kind of chip.In other embodiments of the invention, detecting circuit is constituted using FET, electric capacity, two resistance and conductive contact film and/or contact point.
As shown in FIGURE 3 E, detecting circuit includes FET Ml, electric capacity C5, first resistor R7, second resistance R6 and conductive contact film and/or contact point 124, and the drive circuit is controllable level-conversion circuit module U2.Wherein, FET Ml is P-channel field-effect transistor (PEFT) pipe, its source electrode is grounded by electric capacity C5 and is connected to controllable level-conversion circuit module U2 Enable Pin, drain electrode meets VCC, grid and connects conductive contact film and/or contact point 124, first resistor R7 is connected between P-channel field-effect transistor (PEFT) pipe Ml grid and ground, and second resistance R6 is in parallel with electric capacity C5.
As illustrated in Figure 3 F, detecting circuit includes FET M2, electric capacity C6, first resistor R9, second resistance R8 and conductive contact film and/or contact point 124, drive circuit be controllable level-conversion circuit module U3 o wherein, the FET M2 is N-channel FET, its source electrode meets VCC, drain electrode is grounded and is connected to controllable level-conversion circuit module U3 Enable Pin by electric capacity C6, grid connects conductive contact film and/or contact point 124, first resistor R9 is connected between P-channel field-effect transistor (PEFT) pipe M2 grid and VCC, second resistance R8 is in parallel with electric capacity C6.
Its operation principle is：By human body electromagnetic induction signal, driving FET conducting and shut-off give electric capacity charging, electric capacity keeps electric charge when shut-off, exports stable high level signal when conducting.The effect of first resistor R7, R9 be the grid for making FET when without human-induced signal, keep fixed level, such as GND or VCC.The effect of second resistance R6, R8 is to enable electric capacity after human-induced signal disappears, and is quickly discharged to electric capacity, it is returned to stable level.
In Fig. 3 E and 3F embodiment, controllable level-conversion circuit module U2, U3 is set to high level enable, therefore electric capacity is before without overcharge, is GND level.If controllable level-conversion circuit module
U2, U3 need to be enabled with low level, may be referred to Fig. 3 A to 3D above, exchange the position of electric capacity and its discharge resistance, connect VCC, form discharge circuit output.
When the human body electromagnetic induction switch device of the present invention is arranged on user using equipment, the position that user will necessarily approach, touch, such as Zhi Pattern are gathered around sensor or venous collection sensor, the handle or button of electromechanical equipment.
Fig. 4 A-Fig. 4 C are voltage, the voltage of detecting circuit output and the electric signal of drive circuit output of human body relative to the earth respectively.
As shown in Figure 4 A, in industrial frequency AC electrical environment, the voltage of human body relative to the earth also changes with time T in sine wave.When human body proximity or touching, detecting circuit produces induced voltage, and its waveform is as shown in Fig. 4 B.As it was previously stated, when the induced voltage exceedes thresholding, drive circuit is to produce drive signal, and driving power supply conducting or wake-up circuit plate, as shown in Figure 4 C, TO moment start drive circuit output high level.
The human body electromagnetic induction switch device of the present invention and existing machinery button or active detection（It is such as infrared）Performance comparision table as shown in Table 1.
Mechanical key active detection（It is infrared）More than the lOuA 0 of human body electromagnetic induction speed lOOus-lOms 0.5-2S 10ms operating power consumptions 0
Size is installed hard to tolerate easy in difficulty or ease in volume
The 0.3-2 10 years of life-span 10000 times system above cost 0.1-0.8 member 0.3-5 members 0.05-0.07 members are prevented weak strong in non-artificial interference
Waterproof is no, and weak to be that temperature influence is unaffected have an impact that unaffected environmental protection is no to be
The human body electromagnetic induction switch device of the present invention can be applied to user-identification device such as refers to Pattern door locks, vein detect lock, computer and handset starting, shop equipment are opened such as numerically controlled lathe and hydraulic test, household electrical appliance such as electric light, starting of air conditioner.
Claims (1)
- Claim1st, a kind of human body electromagnetic induction switch device, for starting electric equipment, it is characterised in that including the detecting circuit for detecting human body electromagnetic induction signal；The drive circuit of the detecting circuit is connected to, its output based on the detecting circuit produces drive signal, to connect electric equipment power supply or wake up electric equipment circuit board.2nd, human body electromagnetic induction switch device according to claim 1, it is characterised in that the detecting circuit output voltage or current signal in human body touch or human body proximity.3rd, human body electromagnetic induction switch device according to claim 2, it is characterised in that the detecting circuit includes diode, electric capacity and conductive contact film and/or contact point；Wherein, described diode one end is connected with the conductive contact film and/or contact point, and the other end is connected with one end of the electric capacity, the other end ground connection of the electric capacity or VCC.4th, human body electromagnetic induction switch device according to claim 3, it is characterised in that the electric capacity two ends are also parallel with resistance.5th, the human body electromagnetic induction switch device according to claim 3 or 4, it is characterised in that the drive circuit includes controllable level-conversion circuit module, gate-controlled switch, electronic switch or analog switch.6th, human body electromagnetic induction switch device according to claim 2, it is characterized in that, the detecting circuit includes FET and coupled electric capacity, first resistor, second resistance and conductive contact film and/or contact point, and the drive circuit is controllable level-conversion circuit module.7th, human body electromagnetic induction switch device according to claim 6, it is characterized in that, the FET is P-channel field-effect transistor (PEFT) pipe, its source electrode is by the capacity earth and is connected to the Enable Pin of the controllable level-conversion circuit module, drain electrode and meets VCC, grid and connect the conductive contact film and/or contact point, the first resistor is connected between the grid of the P-channel field-effect transistor (PEFT) pipe and ground, and the second resistance is in parallel with the electric capacity.8th, human body electromagnetic induction switch device according to claim 6, it is characterized in that, the FET is N-channel FET, its source electrode meets VCC, drains by the capacity earth and be connected to the Enable Pin of the controllable level-conversion circuit module, grid and connect the conductive contact film and/or contact point, the first resistor is connected between the grid of the P-channel field-effect transistor (PEFT) pipe and VCC, the second resistance with The electric capacity is in parallel.9th, a kind of method for starting electric equipment, it is characterised in that including：Human body electromagnetic induction signal is detected, and exports the induced signal；Drive signal is generated based on the induced signal；AndThe drive signal is responded to connect electric equipment power supply or wake up electric equipment circuit board.10th, the method according to claim 9 for starting electric equipment, it is characterised in that voltage or current signal that the induced signal includes human body touch or produced when close.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/073803 WO2011029224A1 (en) | 2009-09-08 | 2009-09-08 | Human body electromagnetic induction switchgear and method for starting electrical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102640250A true CN102640250A (en) | 2012-08-15 |
| CN102640250B CN102640250B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980161331.0A Active CN102640250B (en) | 2009-09-08 | 2009-09-08 | Human body electromagnetic induction switchgear and method for starting electrical equipment |
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| Country | Link |
|---|---|
| CN (1) | CN102640250B (en) |
| WO (1) | WO2011029224A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327216A (en) * | 2018-10-18 | 2019-02-12 | 广州众诺电子技术有限公司 | A kind of starting-up method and device based on electromagnetic induction |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489029B (en) * | 2013-09-26 | 2017-02-08 | 中国联合网络通信集团有限公司 | Radio frequency card |
| US20160036996A1 (en) * | 2014-08-02 | 2016-02-04 | Sony Corporation | Electronic device with static electric field sensor and related method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079835U (en) * | 1990-11-09 | 1991-06-26 | 陈晓光 | Touch delay switch with flash indicating |
| CN1771430A (en) * | 2003-02-10 | 2006-05-10 | N-特莱格有限公司 | Touch detection for a digitizer |
| CN101093990A (en) * | 2007-06-11 | 2007-12-26 | 美的集团有限公司 | Touch control induction circuit |
| JP2009200578A (en) * | 2008-02-19 | 2009-09-03 | Toto Ltd | High-frequency sensor and high-frequency switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7115856B2 (en) * | 2003-12-08 | 2006-10-03 | Design Engine | Digital, touchless electrical switch |
-
2009
- 2009-09-08 CN CN200980161331.0A patent/CN102640250B/en active Active
- 2009-09-08 WO PCT/CN2009/073803 patent/WO2011029224A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079835U (en) * | 1990-11-09 | 1991-06-26 | 陈晓光 | Touch delay switch with flash indicating |
| CN1771430A (en) * | 2003-02-10 | 2006-05-10 | N-特莱格有限公司 | Touch detection for a digitizer |
| CN101093990A (en) * | 2007-06-11 | 2007-12-26 | 美的集团有限公司 | Touch control induction circuit |
| JP2009200578A (en) * | 2008-02-19 | 2009-09-03 | Toto Ltd | High-frequency sensor and high-frequency switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109327216A (en) * | 2018-10-18 | 2019-02-12 | 广州众诺电子技术有限公司 | A kind of starting-up method and device based on electromagnetic induction |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011029224A1 (en) | 2011-03-17 |
| CN102640250B (en) | 2015-02-18 |
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Address after: 518000 room A410-A, virtual university garden building, South District, Nanshan District hi tech Zone, Guangdong, Shenzhen Applicant after: Shenzhen Winsing Fingerprint Technology Co., Ltd. Address before: 518026 Guangdong Province, Shenzhen city Futian District South CaiTian Youth Building 309 Applicant before: Shenzhen Winsing Fingerprint Technology Co., Ltd. |
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