CN2205082Y - Supersonic moving sensing switch - Google Patents

Supersonic moving sensing switch Download PDF

Info

Publication number
CN2205082Y
CN2205082Y CN 94200788 CN94200788U CN2205082Y CN 2205082 Y CN2205082 Y CN 2205082Y CN 94200788 CN94200788 CN 94200788 CN 94200788 U CN94200788 U CN 94200788U CN 2205082 Y CN2205082 Y CN 2205082Y
Authority
CN
China
Prior art keywords
circuit
switch
ultrasonic wave
ultrasonic
resistance
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.)
Expired - Fee Related
Application number
CN 94200788
Other languages
Chinese (zh)
Inventor
孙义方
郎红兵
王向东
王咏梅
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.)
Wacy Special Blx Ic Design Corp
Original Assignee
Wacy Special Blx Ic Design Corp
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 Wacy Special Blx Ic Design Corp filed Critical Wacy Special Blx Ic Design Corp
Priority to CN 94200788 priority Critical patent/CN2205082Y/en
Application granted granted Critical
Publication of CN2205082Y publication Critical patent/CN2205082Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Electronic Switches (AREA)

Abstract

The utility model relates to an ultrasonic motional inductive switch which utilizes Doppler effect. The utility model comprises an ultrasonic emission part, an ultrasonic reception and amplification part, a demodulator part, a beat signal amplification and comparison part, a drive trigger part, a power part and loads. The motional inductive switch has high sensitivity. Action range is adjustable in large scope. The utility model works in single ultrasonic frequency which is innocuous to human bodies, is easy to be adjusted and controlled, requires little from power supplies and work environments, has very low energy consumption, and has development and generalization value.

Description

Supersonic moving sensing switch
The utility model belongs to the motion automation field, and more particularly, it relates to a kind of ultrasonic wave motional induction switch.
Inductive switch kind in the market is a lot, and circuit is different, is touch and induction type but conclusion surpasses to come outer.Touch is to make plate potential or change in electrical charge by touch, amplifies through conversion and removes the driving switch circuit.Induction type is that its electric charge or capacitance profile change, and amplify change-over circuit by highly sensitive detection and are converted to the action of electric pulse driving switch when human body or object during near the active region.But existing these inductive switches mostly are made up of resolution element, poor sensitivity, non-adjustable or the adjustable extent of operating distance seldom, the non-series system of power supply can not directly replace the mains switch of electrical equipment, the requirement induction pole plate that also has is parallel with ground, difficulty is installed, and these switches mostly are operated in radio frequency or microwave, its radiation is harmful.
The purpose of this utility model provides a kind of novel ultrasonic wave motional induction switch that can overcome above-mentioned defective.This switch is operated in harmless supersonic range, sensitivity is high, and operating distance is adjustable significantly, and easy for installation, has wide range of applications.
Inventor of the present utility model creatively is applied to inductive switch with ultrasonic wave dobla effect.As everyone knows, so-called dobla effect is that it is different with the frequency of sound source with the frequency of reflection that human body or object receive when sound source and human body or object have relative motion with respect to medium.The utility model utilizes this principle just, and the difference on the frequency signal taking-up with reflect that human body or other object move and produced in ultrasound field is transformed into electric pulse and removes to drive electronic switch, finishes the function of Switching Power Supply.
It is made up of following circuit: ultrasonic transmit circuit, ultrasonic wave receive amplifying circuit, detecting circuit, Beat Signal amplification comparison circuit, drive circuits for triggering and power circuit, ultrasonic transmit circuit and ultrasonic wave receive amplifying circuit through ultrasonic transducer Y1, Y2 coupling connection mutually, ultrasonic wave receives amplifying circuit and is connected to through coupling capacitance C5 on detection tube D1, the D2 of detecting circuit, and detecting circuit is connected to the amplifier U that Beat Signal amplifies comparison circuit through isolating capacitor C7 2AInput 3 on, Beat Signal amplifies the comparator U of comparison circuit 2BOutput 7 be connected to through resistance R 12 on the isolating diode D3 that drives circuits for triggering, drive circuits for triggering U 2COutput 8 be connected with controllable silicon or isolate after diode D13 is connected with controllable silicon carrying out photoelectricity through resistance R 14, the power Vcc after voltage stabilizing is sent to each circuit.
With most preferred embodiment ultrasonic wave motional induction switch of the present utility model is illustrated in greater detail below with reference to accompanying drawings.
Fig. 1 is a circuit structure block diagram of the present utility model
Fig. 2 is that power supply is the circuit diagram of parallel ultrasonic wave motional induction switch;
Fig. 3 is that power supply is the circuit diagram of in-line ultrasonic wave motional induction switch;
As seen from Figure 1, ultrasonic wave motional induction switching circuit consists of the following components:
1, ultrasonic wave radiating portion 2, ultrasonic wave receive amplifier section
3, demodulator probe 4, Beat Signal amplify rating unit
5, drive triggering part 6, photosensitive or other control section
7, power unit 8, load
Now above each several part is described respectively.
One, ultrasonic wave radiating portion: shown in Fig. 2 bottom left section, it comprises ultrasonic oscillator, amplifier and ultrasonic transducer Y 1Ultrasonic oscillator is by transistor Q 1, Q 2, resistance R 1, R 2Form, produce the supersonic oscillations of the about 39kHz of frequency, through transistor Q 2After the amplification, by ultrasonic transducer Y 1Emission.Diode D 9In order to prevent that electric current from leaking; L 1C 1At frequency of oscillation resonance so that output is maximum.
Two, ultrasonic wave receives amplifier section: shown in upper left among Fig. 2, it comprises ultrasonic transducer Y 2With three utmost point amplifiers.Y 2Reception is by Y 1The frequency of sending is f 1Ultrasonic signal and the frequency of the object that in wave field, moves reflection be f 2Ultrasonic signal, they are through Y 2After promptly be converted to the signal of telecommunication.The signal f that is received 1f 2And and, difference frequency signal f 1+ f 2, f 1-f 2Third stage amplifier U via three phase inverters, 4069 compositions 1A, U 1B, U 1CThree utmost points amplify to improve induction sensitivity.R 3, R 4Be feedback resistance, make inverter be operated in linearity range in order to adjust the working point, C 2, C 3, C 5Be capacitance, L 2, C 4Want and U 1CCoupling is to obtain maximum output.
Three, demodulator probe: shown in middle part on Fig. 2, it comprises by D 1, D 2The wave detector of forming and by C 6R 5The low pass filter of forming.The signal of telecommunication from a plurality of frequencies of amplifier is detected, filtering, through isolation capacitance C 7After, with the difference frequency signal f that takes out 1-f2 delivers to Beat Signal and amplifies rating unit.
Four, Beat Signal amplifies rating unit: shown in upper right portion among Fig. 2, it comprises by amplifier 324 and resistance R 8, R 9The amplifier U that forms 2AWith the comparator U that forms by amplifier 324 2BU 2ABe three times of (R 9/ R 8=3) amplifier is connected with U2B in order to Beat Signal is amplified and deliver to comparator U 2B5 ends, U 2BThe other end 6 connect potentiometer, the complexity that the current potential that adds to 6 ends by adjusting is regulated output 7 upsets, thereby the sensitivity of by-pass cock.
Five, drive triggering part: comprise charge-discharge circuit and thyristor gating circuit.Charge-discharge circuit is by isolating diode D 3And the R that is attached thereto 13, C 8Form, regulate R 13, C 8Numerical value can obtain required time constant t=RC, with the turn-on time of control load, thyristor gating circuit has two kinds, when power supply was parallel way, shown in Fig. 2 right part, it was by in order to trigger the triggering drive circuit U that silicon controlled amplifier 324 is formed 2CThe conducting and the disconnection of the bidirectional triode thyristor of on-off action have been controlled.Said power circuit is in state in parallel with load, and it comprises civil power step-down that makes 220V5Hz and the R that maintains 12V 16, C 9With voltage-stabiliser tube D 7, make the diode D of the 12V rectifying and wave-filtering after the voltage stabilizing 5With filter capacitor C 10, and integrated package of pressure-stabilizing 7806, each circuit part of switch is supplied with in its output.Also be provided with photosensitive control circuit, it comprises photo resistance Rs and resistance R 18, this two resistance is connected to the control circuit UID that is made up of phase inverter 4069, its output and isolating diode D 4Connect.When power supply is series system, shown in Fig. 3 lower right-most portion, drives circuits for triggering and comprise isolating diode D 3Be attached thereto by R 13, C 8The charge-discharge circuit of forming, charge-discharge circuit is connected to the drive circuit U that is made up of amplifier 324 2C, U 2CWith driven light-emitting diode D 10Link to each other light-emitting diode D 10Control photosensitive R S2Resistance, R S2With energy storage capacitor C 12, C 13And resistance R 20Link to each other isolating diode D 13Be connected between energy storage capacitor and the controllable silicon, this drives circuits for triggering and also is included in the moment assurance SCR that power unit has direct voltage output 2The SCR of not conducting 2Control circuit, R 15, C 14With the control circuit U that forms by phase inverter 4069 1DLink to each other its output and isolating diode D 4Link to each other; Said power circuit comprises full-wave rectification bridge Z, by R 18, R 19, R S1, D 14And SCR 1The photosensitive control section of forming, wherein R 18, R 19With D 14Negative terminal links to each other, D 14Anode is connected to SCR 1The control utmost point, SCR 1In addition two ends respectively with R 16And D 5, C 9, R 17Link to each other, by voltage-stabiliser tube D 6, D 7And filter capacitor C 10, C 11Form the voltage stabilizing output.It adopts " photoelectricity isolation " form, uses amplifier 324(U 2C) output driven for emitting lights diode D 1D 10Light-emitting diode D during stable state 10Do not work R S2Very big, electric current seldom, electric current and current potential all deficiency so that D 13Conducting, thereby S CR2Not conducting.When kinesthesia should have Beat Signal, light-emitting diode was bright, photo resistance R S2Diminish, a bigger electric current is promptly arranged through R S2To electric capacity charging, charge to give and decide current potential and make D 13Conducting, thereby SCR 2Conducting.By control SCR 2Break-make control the break-make of the power supply that adds to load.For keeping sufficiently long load ON time, storage capacitor adopts two utmost point modes, promptly uses two capacitor C 12, C 13
Six, power unit: adapt to different needs, have in parallel and the series connection dual mode.
Parallel way is shown in part in Fig. 2 left side, and Switching Power Supply part and load are in state in parallel, and the civil power of 220V50HZ is through R 16, C 9Step-down is by voltage-stabiliser tube D 7Maintain about 12V, again through D 5Rectification, C 10After the filtering, supply with integrated package of pressure-stabilizing 7806, supply with each circuit part of switch by 7806 output 6V voltages.When this switch of parallel way is used as lighting switch, be provided with photosensitive control section in order to economize on electricity, it comprises photo resistance Rs, resistance R 18, phase inverter U 1D(4069) and diode D 4When daytime, light was strong, the resistance of photo resistance Rs was very little, phase inverter U 1D9 terminal potential height, 8 ends are low, make D 4Conducting is with comparator U 2B5 end clampers make it not trigger at electronegative potential, thereby this ultrasonic wave motional induction switch is not worked by day or under the good situation of visibility.When darkness light was weak, Rs was high resistant, U 1D9 terminal potentials low, 8 end height, D 4Not conducting is isolated this photosensitive control section and whole system, and switch can triggered as normal work.Certainly, those of ordinary skill in the art is not difficult as required, changes this circuit into temperature-sensitive, pressure-sensitive, sound control circuit such as quick, to adapt to different application scenarios.
Series system is shown in part in Fig. 3 left side, and Switching Power Supply part and load are in series connection.After control and voltage stabilizing circuit output Vcc supply with the each several part circuit, voltage-stabilizing output circuit is by voltage stabilizing didoe D by full-wave rectification for civil power 6, D 7And filter capacitor C 10, C 11Form.Similar with parallel way during as lighting switch when this switch of series system, also be provided with photosensitive control section in order to economize on electricity, it is by R 18, R 19, R S1, D 14, D 5, C 9, and SCR 1Form.When visibility well need not thrown light on, photo resistance R S1Seldom, only several approximately K, same R 18Make D after the dividing potential drop 14The left end current potential is very low, D 14Not conducting, thereby SCR 1Also not conducting, DC power supply Vcc no-output is not worked by each circuit of Vcc power supply, and load is disconnected, and reaches the effect of economize on electricity.And the electric current R that only flows through at this moment 18, R 19, R S1R with the back S2, R 20, because R at this moment 18, R S1, R S2Resistance very big, so electric current is very little, only about 0.06mA, at this moment the only about 13mw of the power consumption of switch self is the incomparable extremely low power consumption of other like product.When the bad needs of visibility throw light on, R S1The magnitude of very greatly a few M Ω and several+M Ω, R 19Adjust resistance as protection, be used for shunting and spacing, at this moment D 14Conducting, thereby make SCR 1Conducting has Vcc output, but by each circuit operate as normal of Vcc power supply, thereby can trigger and make the load connection.At this moment the electric current of power unit is about 8mA, so the power consumption of switch self also is the incomparable low-power consumption of other like product.As seen from the figure, SCR during series system 2The conducting meeting makes the short circuit of rectifier bridge positive and negative terminal, makes Vcc from having to nothing, and SCR 2During disconnection, Vcc grows out of nothing, and in order to reach a stable operating state, requires to have the moment RDR of Vcc 2Not conducting, this can be by R 15, C 14, U 1DAnd D 4The circuit of forming is finished, at the moment U that Vcc output is arranged 1D9 terminal potentials low, 8 end height, thereby make U 2BThe current potential height of 6 ends makes U 2BDo not overturn, the current potential of 7 ends output is low, thereby guarantees U 2C8 ends be electronegative potential, SCR 2Not conducting.Work as C 14Charging finishes, and (time constant is R 15C 14), U 1D9 ends be high potential, 8 ends become electronegative potential, D 4Not conducting makes foregoing circuit and U 2B6 ends isolate, thereby reach a stable operating state.Power supply is that the switch of series system can replace any two ends switch easily, as wall-board switch etc., only needs that the rectifier bridge that substituted switch ends be connected on this switching circuit is exchanged two ends and gets final product.
Seven loading sections: can be used with various loads according to different same ways, this will narrate below.
This ultrasonic wave motional induction switch is suitable for the various power consumption equipments of public places such as enterprises and institutions, family, restaurant, hotel, station are carried out motion control, and purposes is very extensive, now exemplifies as follows:
1, the illumination of locating in order to control corridor etc. can accomplish that the people crosses lamp to the bright people of lamp and puts out, and very significant power savings is arranged.
2, cooperate the various tapses of control with electromagnetically operated valve, can make automatic shower, automatic hand washer etc., not only convenient, healthy and significant water-saving result arranged.
3, in order to the control warning device, can make autoalarm.
4, in order to the control air-heater, can make the induction type automatic hand dryer.
This ultrasonic wave motional induction of the utility model switch is applied to field of switches with the dobla effect in a creative way dexterously, has overcome the defective of existing inductive switch.It is operated in harmless ultrasonic Chinese section, and sensitivity is very high, and operating distance is adjustable significantly.The power supply tandem also can directly replace the mains switch of power consumption equipment, installs very conveniently, and with low cost, and range of application is also far not only above-listed multinomial, and development prospect is widely arranged.

Claims (8)

1, a kind of ultrasonic wave motional induction switch that utilizes the dobla effect, it is characterized in that it is made up of following circuit: ultrasonic transmit circuit, ultrasonic wave receive amplifying circuit, detecting circuit, Beat Signal and amplify comparison circuit, drive circuits for triggering and power circuit, ultrasonic transmit circuit and ultrasonic wave receive amplifying circuit through ultrasonic transducer Y1, Y2 coupling connection mutually, ultrasonic wave receives amplifying circuit and is connected to through coupling capacitance C5 on detection tube D1, the D2 of detecting circuit, and detecting circuit is connected to the amplifier U that Beat Signal amplifies comparison circuit through isolating capacitor C7 2AInput 3 on, Beat Signal amplifies the comparator U of comparison circuit 2BOutput 7 be connected to through resistance R 12 on the isolating diode D3 that drives circuits for triggering, drive circuits for triggering U 2COutput 9 be connected with controllable silicon or isolate after diode D13 is connected with controllable silicon carrying out photoelectricity through resistance R 14, the power Vcc after voltage stabilizing is sent to each circuit.
2,, it is characterized in that said ultrasonic transmit circuit comprises ultrasonic transducer Y according to the said ultrasonic wave motional induction of claim 1 switch 1, by transistor Q 1, Q 2, resistance R 1, R 2The ultrasonic oscillator of forming and by transistor Q 2, L 1, C 1The amplifier of forming.
3,, it is characterized in that said ultrasonic wave receives amplifying circuit and comprises ultrasonic transducer Y according to the said ultrasonic wave motional induction of claim 1 switch 2, the third stage amplifier U that is composed in series by three phase inverters 4069 1A, U 1B, U 1CBy L 2, C 4The resonant groove path and the block capacitor C that form 2, C 3, C 5
4,, it is characterized in that said detecting circuit comprises detector diode D according to the said ultrasonic wave motional induction of claim 1 switch 1, D 2, by R 5, C 6The low pass filter and the isolating capacitor C that form 7
5,, it is characterized in that said Beat Signal amplifies comparison circuit and comprises by amplifier 324 and resistance R according to the said ultrasonic wave motional induction of claim 1 switch 9, R 8Three times of amplifier U that form 2AAnd the comparator U that forms by amplifier 324 of serial connection with it 2B
6,, it is characterized in that said driving circuits for triggering comprise isolating diode D according to the said ultrasonic wave motional induction of claim 1-5 switch 3, be attached thereto by R 13, C 8The charge-discharge circuit of forming and by amplifier 324 forms in order to triggering silicon controlled circuits for triggering U 2CSaid power circuit is in state in parallel with load, and it comprises civil power step-down that makes 220V50Hz and the R that maintains 12V 16, C 9With voltage-stabiliser tube D 7, make the rectifier diode D of the 12V rectifying and wave-filtering after the voltage stabilizing 5With filter capacitor C 10, and integrated package of pressure-stabilizing 7806, each circuit part of switch is supplied with in its output.
7, according to the said ultrasonic wave motional induction of claim 6 switch, it is characterized in that also being provided with photosensitive control circuit, it comprises photo resistance Rs and resistance R 18, this two resistance is connected to the control circuit U that is made up of phase inverter 4069 1D, its output and isolating diode D 4Join.
8,, it is characterized in that said driving circuits for triggering comprise isolating diode D according to the said ultrasonic wave motional induction of claim 1-5 switch 3Be attached thereto by R 13, C 8The charge-discharge circuit of forming, charge-discharge circuit is connected to the drive circuit U that is made up of amplifier 324 2C, U 2CWith driven light-emitting diode D 10Link to each other light-emitting diode D 10Control photosensitive R S2Resistance, R S2With energy storage capacitor C 12, C 13And resistance R 20Link to each other isolating diode D 13Be connected between energy storage capacitor and the controllable silicon, this drives circuits for triggering and also is included in the moment assurance SCR that power unit has direct voltage output 2The SCR of not conducting 2Control circuit, R 15, C 14With the control circuit U that forms by phase inverter 4069 1DLink to each other its output and isolating diode D 4Link to each other; Said power circuit comprises full-wave rectification bridge Z, by R 18, R 19, R S1, D 14And SCR 1The photosensitive control section of forming, wherein R 18, R 19With D 14Negative terminal links to each other, D 14Anode is connected to SCR 1The control utmost point, SCR 1In addition two ends respectively with R 16And D 5, C 9, R 17Link to each other, by voltage-stabiliser tube D 6, D 7And filter capacitor C 10, C 11Form the voltage stabilizing output.
CN 94200788 1994-01-24 1994-01-24 Supersonic moving sensing switch Expired - Fee Related CN2205082Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 94200788 CN2205082Y (en) 1994-01-24 1994-01-24 Supersonic moving sensing switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 94200788 CN2205082Y (en) 1994-01-24 1994-01-24 Supersonic moving sensing switch

Publications (1)

Publication Number Publication Date
CN2205082Y true CN2205082Y (en) 1995-08-09

Family

ID=33821034

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 94200788 Expired - Fee Related CN2205082Y (en) 1994-01-24 1994-01-24 Supersonic moving sensing switch

Country Status (1)

Country Link
CN (1) CN2205082Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100516A (en) * 2017-06-23 2017-08-29 四川赛科安全技术有限公司 A kind of self-reflection fire resistant doorsets module and its implementation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107100516A (en) * 2017-06-23 2017-08-29 四川赛科安全技术有限公司 A kind of self-reflection fire resistant doorsets module and its implementation
CN107100516B (en) * 2017-06-23 2018-12-07 四川赛科安全技术有限公司 A kind of self-reflection fire resistant doorsets module and its implementation

Similar Documents

Publication Publication Date Title
US5115185A (en) Single conversion power factor correction using septic converter
US4716301A (en) Digital light control
AU648093B2 (en) Power saving DC-DC converter for radio pagers
JPH08228026A (en) Diode driving current source
US5204586A (en) Solar powered lamp having a circuit for providing positive turn-on at low light levels
CN101651410B (en) Circuit and method for reducing electromagnetic interference
CN2205082Y (en) Supersonic moving sensing switch
CN107590933B (en) A kind of sound light alarming circuit
US6181589B1 (en) Half-bridge inverter for coupling an EL lamp to a high voltage DC rail
CN2719031Y (en) Combined ultrasonic mouse expelling machine
CN86208635U (en) Inducing switch sensible to body accessing
GB2210214A (en) Uninterrupted power supply
CN214315668U (en) Energy-saving efficient street lamp system based on information communication technology
CN115396996B (en) Chopped wave power-saving system and method for intermittent work of radio frequency
CN2149662Y (en) Passive type infrared detector
CN217911380U (en) Drive circuit of ultrasonic transducer
JPS591394Y2 (en) DC line ground fault detection device
CN110290620B (en) High-power solar lamp control circuit and method based on microwave human body induction
CN220629628U (en) Wireless microwave induction device and lighting lamp
CN211152292U (en) Wireless dimming control panel based on internet
CN2174814Y (en) Full-automatic energy-saving switch
KR860001933Y1 (en) Automati switching lamp
CN2222974Y (en) Multifunctional induction module controlled lamp holder
CN2538100Y (en) Intelligent human body automatic induction lamp base
CN2093498U (en) Power supply automatic control switch

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee