CN103147657A - Automatic door control circuit - Google Patents
Automatic door control circuit Download PDFInfo
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- CN103147657A CN103147657A CN2013101092580A CN201310109258A CN103147657A CN 103147657 A CN103147657 A CN 103147657A CN 2013101092580 A CN2013101092580 A CN 2013101092580A CN 201310109258 A CN201310109258 A CN 201310109258A CN 103147657 A CN103147657 A CN 103147657A
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Abstract
The invention relates to an automatic door control circuit which is technically characterized by comprising a 5V direct current power supply, a three-point type capacitance oscillating circuit, a resistance-capacitance amplifying circuit, a voltage-multiplying detection and filter circuit, a direct current signal amplifying and state indicating circuit, and a direct current relay drive circuit. According to the automatic door control circuit, a human body heat source is not used as a signal source, and the induction when a human body or vehicle approaches a door is creatively used as a control signal of automatic opening or automatic closing of the door. The automatic door control circuit has the advantages of simple design structure, reliable working performance, low manufacturing cost, and the like; and the circuit is completely made of common electronic components.
Description
Technical field
The invention belongs to the electronic auto-control technology field, relate to a kind of control circuit of automatic door.
Background technology
Usually the automatic door of public place adopts pyroelectric infrared transducer more, pyroelectric infrared transducer receives the faint infrared signal that human body sends, by amplifying circuit, infrared signal is amplified, then drive DC relay and control reversing motor work, realized that people Lai Shimen opens automatically, door autoshutdown when the people leaves.
Control circuit of automatic door of the present invention not end user's body heat source is originated as signal, but the induction when utilizing human body or vehicle approach of looking for another way is automatically opened as the gate or the control signal of autoshutdown.Its circuit has that project organization is succinct, reliable working performance, circuit use all that the ordinary electronic components and parts are made, the advantage such as cheap.
Below describe control circuit of automatic door of the present invention related relevant technologies content in implementation process in detail.
Summary of the invention
Goal of the invention and beneficial effect: control circuit of automatic door of the present invention not end user's body heat source is originated as signal, but the induction when utilizing human body or vehicle approach of looking for another way is automatically opened as the gate or the control signal of autoshutdown.Control circuit of automatic door has that project organization is succinct, reliable working performance, circuit use all that the ordinary electronic components and parts are made, the advantage such as cheap.
The circuit working principle: the major part of control circuit of automatic door is an oscillating circuit that is in critical condition, when human body or vehicle approach inductive probe L are arranged, the frequency of oscillation of the oscillating circuit that is comprised of elements such as inductive probes will great changes will take place, the Q value of inductive probe L is reduced, make the oscillating circuit that is in the threshold oscillation state quit work, and then controlled automatic unlatching or the autoshutdown at gate by related circuit.In circuit, red light emitting diodes LED lights or extinguishes and is used to indicate duty.
NPN type triode BG1 and inductive probe L, oscillating capacitance C1, oscillating capacitance C2 have consisted of a bikini oscillating circuit in circuit.When the base stage of NPN type triode BG1 in oscillating circuit has a positive signal, make the collector signal of NPN type triode BG1 for negative due to the inverting function of triode.The signal polarity at the two ends of oscillating capacitance C1, oscillating capacitance C2 is all upper just lower negative, signal is by the feedback of capacitor C 3, signal on NPN type triode BG1 base stage and original signal same-phase, because be positive feedback, so circuit can produce vibration, the potentiometer RP of access can weaken the intensity of positive feedback signal in circuit, and it is used for the threshold of regulating circuit starting of oscillation.
The frequency of oscillation of oscillating circuit is 37～40KHz approximately, and frequency of oscillation is mainly determined by inductive probe L, oscillating capacitance C1, oscillating capacitance C2.Regulator potentiometer RP can control the size of positive feedback signal, and control circuit is in firm starting of oscillation state.Resistance R 1 is the biasing resistor of NPN type triode BG1.Faint oscillator signal is delivered to NPN type triode BG2 by coupling capacitance C4 and is carried out voltage amplification.Because of the signal amplitude after amplifying still smaller, therefore select two detector diode D1, detector diode D2 and coupling capacitance C5, filter capacitor C6 to form the multiplication of voltage detecting circuit, DC voltage after detection filter can make NPN type triode BG3 work, at this moment the colelctor electrode of NPN type triode BG3 is in low level, when red light emitting diodes LED gets electric lighting, BG4 provides bias voltage to make its conducting for NPN type triode, drives at last DC relay J and controls the reversing motor running.
When human body or vehicle approach inductive probe L are arranged, be in the oscillating circuit failure of oscillation immediately of vibration critical condition, signal by coupling capacitance C4 will disappear, the base stage of NPN type triode BG3 can not get forward voltage, and make NPN type triode BG3 cut-off, red light emitting diodes LED is extinguished by lighting to become.
Technical scheme: control circuit of automatic door, it comprises 5V dc source, bikini electric capacity oscillating circuit, rc-coupled amplification circuit, multiplication of voltage detection and filter circuit, direct current signal amplification and condition indication circuit, DC relay drive circuit, it is characterized in that:
bikini electric capacity oscillating circuit: it is by inductive probe L, oscillating capacitance C1, oscillating capacitance C2, capacitor C 3, NPN type triode BG1, biasing resistor R1, potentiometer RP and resistance R 2 form, oscillating capacitance C1 and an end that meets potentiometer RP after oscillating capacitance C2 is connected in series, the other end of oscillating capacitance C1 and oscillating capacitance C2 connects respectively the two ends of inductive probe L, one end of the upper termination capacitor C 3 of inductive probe L, the base stage of the other end of capacitor C 3 and NPN type triode BG1, one end of resistance R 1 is connected, the anodal VCC of the colelctor electrode connection circuit of the other end of resistance R 1 and NPN type triode BG1, the emitter stage of NPN type triode BG1 connects the other end of potentiometer RP and an end of movable end and resistance R 2 thereof, the lower termination circuit ground GND of the other end of resistance R 2 and inductive probe L,
Rc-coupled amplification circuit: it is comprised of coupling capacitance C4, NPN type triode BG2, biasing resistor R3 and load resistance R4, the emitter stage of the termination NPN type triode BG1 of coupling capacitance C4, the base stage of another termination NPN type triode BG2 of coupling capacitance C4 and the end of biasing resistor R3, the anodal VCC of the other end connection circuit of biasing resistor R3, the colelctor electrode of NPN type triode BG2 connects the end of load resistance R4, the anodal VCC of the other end connection circuit of load resistance R4, the emitter stage connection circuit ground GND of NPN type triode BG2;
Multiplication of voltage detection and filter circuit: it is comprised of coupling capacitance C5, detector diode D1, detector diode D2 and filter capacitor C6, the colelctor electrode of NPN type triode BG2 connects the end of coupling capacitance C5, the negative pole of another termination detector diode D1 of coupling capacitance C5 and the positive pole of detector diode D2, the negative pole of detector diode D2 meets the base stage of positive pole and the NPN type triode BG3 of filter capacitor C6, the negative pole connection circuit ground GND of the positive pole of detector diode D1 and filter capacitor C6;
The DC relay drive circuit: it is comprised of NPN type triode BG4, DC relay J and protection diode D3, the base stage of NPN type triode BG4 connects the colelctor electrode of NPN type triode BG3, the colelctor electrode of NPN type triode BG4 connect DC relay J coil an end and and the positive pole of protection diode D3, the other end of DC relay J coil and and the anodal VCC of negative pole connection circuit of protection diode D3, the emitter stage connection circuit ground GND of NPN type triode BG4;
Direct current signal amplifies and condition indication circuit: it is comprised of NPN type triode BG3, red light emitting diodes LED and dropping resistor R5, the base stage of NPN type triode BG3 connects the negative pole of detector diode D2, the colelctor electrode of NPN type triode BG3 connects the negative pole of red light emitting diodes LED, the end of the anodal connecting resistance R5 of red light emitting diodes LED, the anodal VCC of the other end connection circuit of resistance R 5, the emitter stage connection circuit ground GND of NPN type triode BG3;
The positive pole of 5V dc source is connected with circuit anode VCC, and the negative pole of 5V dc source and circuit ground GND join.
Description of drawings
Accompanying drawing 1 is the fundamental diagram of control circuit of automatic door; Accompanying drawing 2 is magnetic core and coil baffle plate schematic diagrames of making the inductive probe L of control circuit of automatic door.
The specific embodiment
According to control circuit of automatic door fundamental diagram and the description of drawings shown in accompanying drawing 1, and according to annexation between components and parts in the described each several part circuit of summary of the invention, and the components and parts technical data described in embodiment requires and the circuit production main points are implemented to realize the present invention, below in conjunction with embodiment, correlation technique of the present invention is further described.
The selection of components and parts and making
1. in order to improve the stability of circuit working, the multiplication factor of NPN type triode pipe BG1 should not be too large, and the β value is controlled at the too large stability that easily affects work of 70～90, β value;
2. the oscillating capacitance C1 in the bikini oscillator circuit, oscillating capacitance C2 require selection work stability ceramic disc capacitor or select ROHS preferably, require the capacity parameter of oscillating capacitance C1, oscillating capacitance C2 to equate;
Inductive probe L be one with the inductance coil of intermediate frequency magnetic core, ￠ 10mm magnetic core selects the antenna bar magnet intercepting 20mm in transistor radio long, it is the baffle plate of 2 ￠ 20mm of bakelite paperboard of 1.5mm with insulating slab or thickness, 2 middle concentric circle holes that respectively dig a ￠ 10mm of baffle plate, then be nested in the two ends of ￠ 10mm magnetic core with glue, the inductance coil magnetic core skeleton of making, see shown in Figure of description 2, flat around 330 circles at magnetic core skeleton higher slice with ￠ 0.25mm enamel-covered wire, use at last the epoxy resin sealing;
4. components and parts title and technical data
| No. haoHAO, component symbol | The components and parts title | Technical data | Quantity | Remarks |
| BG1 | NPN type triode | 2CS9014、β70～90 | 1 | Plastic packaging |
| BG2～BG4 | NPN type triode | 2CS9014、β≥180 | 3 | Plastic packaging |
| D1、D2 | Detector diode | Glassivation 1N60 | 2 | |
| D3 | Silicon rectifier diode | 1N4001 | 1 | The holding circuit effect |
| LED | Red light emitting diodes | ￠5、LED | 1 | The state indication |
| L | Inductive probe | ￠ 10 intermediate frequency magnetic cores | 1 | Inductance coil |
| RP | Potentiometer | 5.6KΩ | 1 | |
| R1 | Resistance | 1/8W、680KΩ | 1 | Biasing resistor |
| R2 | Resistance | 1/8W、3.3KΩ | 2 | Negative feedback resistor |
| R3 | Resistance | 1/8W、2MΩ | 1 | Biasing resistor |
| R4 | Resistance | 1/8W、6.8KΩ | 1 | Load resistance |
| R5 | Resistance | 1/8W、82Ω | 1 | Dropping resistor |
| C1、C2、C3 | Electric capacity | Ceramic disc capacitor, 0.01 |
3 | Oscillating capacitance |
| C4、C5 | Electric capacity | Electric capacity of the dacron, 0.22 μ F | 2 | Coupling capacitance |
| C6 | Electrochemical capacitor | 4.7μF/10V? | 1 | Filter capacitor |
| J | DC relay | Coil working voltage is 5V | 1 | Contact current 〉=5A |
Circuit production main points and circuit debugging
Accompanying drawing 1 circuit working schematic diagram to specifications, carefully welding correctness and the welding quality of all components and parts in check circuit, confirm that the welding of this circuit can enter circuit debugging after errorless;
After connecting the 5V dc source, the descending slow adjustment of the resistance of potentiometer RP until red light emitting diodes LED extinguishes, is then visited any end of inductive probe L magnetic core with human body proximity, and at this moment red light emitting diodes LED will be lit;
The inductive probe L of control circuit of automatic door requires away from more than circuit board element 55mm, and circuit can not use metal shell, and manages to use nonmetals that inductive probe L is fixed;
Adjust the sensitivity that potentiometer RP can change inductive probe L, the excessive or equal cisco unity malfunction of too small circuit of the resistance of potentiometer RP, if the resistance of potentiometer RP is adjusted correctly, the detection range of inductive probe L can be greater than 2.2m.
Claims (1)
1. control circuit of automatic door, it comprises 5V dc source, bikini electric capacity oscillating circuit, rc-coupled amplification circuit, multiplication of voltage detection and filter circuit, direct current signal amplification and condition indication circuit, DC relay drive circuit, it is characterized in that:
described bikini electric capacity oscillating circuit is by inductive probe L, oscillating capacitance C1, oscillating capacitance C2, capacitor C 3, NPN type triode BG1, biasing resistor R1, potentiometer RP and resistance R 2 form, oscillating capacitance C1 and an end that meets potentiometer RP after oscillating capacitance C2 is connected in series, the other end of oscillating capacitance C1 and oscillating capacitance C2 connects respectively the two ends of inductive probe L, one end of the upper termination capacitor C 3 of inductive probe L, the base stage of the other end of capacitor C 3 and NPN type triode BG1, one end of resistance R 1 is connected, the anodal VCC of the colelctor electrode connection circuit of the other end of resistance R 1 and NPN type triode BG1, the emitter stage of NPN type triode BG1 connects the other end of potentiometer RP and an end of movable end and resistance R 2 thereof, the lower termination circuit ground GND of the other end of resistance R 2 and inductive probe L,
Described rc-coupled amplification circuit is comprised of coupling capacitance C4, NPN type triode BG2, biasing resistor R3 and load resistance R4, the emitter stage of the termination NPN type triode BG1 of coupling capacitance C4, the base stage of another termination NPN type triode BG2 of coupling capacitance C4 and the end of biasing resistor R3, the anodal VCC of the other end connection circuit of biasing resistor R3, the colelctor electrode of NPN type triode BG2 connects the end of load resistance R4, the anodal VCC of the other end connection circuit of load resistance R4, the emitter stage connection circuit ground GND of NPN type triode BG2;
Described multiplication of voltage detection and filter circuit are comprised of coupling capacitance C5, detector diode D1, detector diode D2 and filter capacitor C6, the colelctor electrode of NPN type triode BG2 connects the end of coupling capacitance C5, the negative pole of another termination detector diode D1 of coupling capacitance C5 and the positive pole of detector diode D2, the negative pole of detector diode D2 meets the base stage of positive pole and the NPN type triode BG3 of filter capacitor C6, the negative pole connection circuit ground GND of the positive pole of detector diode D1 and filter capacitor C6;
Described DC relay drive circuit is comprised of NPN type triode BG4, DC relay J and protection diode D3, the base stage of NPN type triode BG4 connects the colelctor electrode of NPN type triode BG3, the colelctor electrode of NPN type triode BG4 connect DC relay J coil an end and and the positive pole of protection diode D3, the other end of DC relay J coil and and the anodal VCC of negative pole connection circuit of protection diode D3, the emitter stage connection circuit ground GND of NPN type triode BG4;
Described direct current signal amplifies and condition indication circuit is comprised of NPN type triode BG3, red light emitting diodes LED and dropping resistor R5, the base stage of NPN type triode BG3 connects the negative pole of detector diode D2, the colelctor electrode of NPN type triode BG3 connects the negative pole of red light emitting diodes LED, the end of the anodal connecting resistance R5 of red light emitting diodes LED, the anodal VCC of the other end connection circuit of resistance R 5, the emitter stage connection circuit ground GND of NPN type triode BG3;
The positive pole of described 5V dc source is connected with circuit anode VCC, and the negative pole of 5V dc source and circuit ground GND join.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101092580A CN103147657A (en) | 2013-04-01 | 2013-04-01 | Automatic door control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101092580A CN103147657A (en) | 2013-04-01 | 2013-04-01 | Automatic door control circuit |
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| Publication Number | Publication Date |
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| CN103147657A true CN103147657A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101092580A Pending CN103147657A (en) | 2013-04-01 | 2013-04-01 | Automatic door control circuit |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742245A (en) * | 1985-12-28 | 1988-05-03 | Yoshida Kogyo K. K. | Method for controlling automatic door in turning-on time of its power supply |
| US4904880A (en) * | 1987-08-07 | 1990-02-27 | Yoshida Kogyo K.K. | Automatic door driving system |
| CN2164152Y (en) * | 1993-04-23 | 1994-05-04 | 朱同 | Infrared energy-saving automatic switch |
| CN1099455A (en) * | 1993-08-21 | 1995-03-01 | 张忠信 | Device for controlling automatic door |
| CN2440098Y (en) * | 2000-09-01 | 2001-07-25 | 厦门大学 | Fully-automatic door-controlling device for garage door |
| CN2596398Y (en) * | 2003-01-07 | 2003-12-31 | 於雅良 | Automatic door controller |
| CN201043403Y (en) * | 2007-04-25 | 2008-04-02 | 杨兴发 | Control circuit of automatic door |
| CN201699678U (en) * | 2010-06-25 | 2011-01-05 | 浙江正泰机床电气制造有限公司 | Inductance approach switch |
| CN102412821A (en) * | 2011-08-23 | 2012-04-11 | 何林 | Pyroelectric infrared human body approach control switch |
| CN102508304A (en) * | 2011-11-23 | 2012-06-20 | 韩春龙 | Hand-held metal detector |
| CN202395744U (en) * | 2011-11-23 | 2012-08-22 | 刘德军 | Induction type approach switch |
| CN203213797U (en) * | 2013-04-01 | 2013-09-25 | 周玉林 | Automatic door control circuit |
-
2013
- 2013-04-01 CN CN2013101092580A patent/CN103147657A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742245A (en) * | 1985-12-28 | 1988-05-03 | Yoshida Kogyo K. K. | Method for controlling automatic door in turning-on time of its power supply |
| US4904880A (en) * | 1987-08-07 | 1990-02-27 | Yoshida Kogyo K.K. | Automatic door driving system |
| CN2164152Y (en) * | 1993-04-23 | 1994-05-04 | 朱同 | Infrared energy-saving automatic switch |
| CN1099455A (en) * | 1993-08-21 | 1995-03-01 | 张忠信 | Device for controlling automatic door |
| CN2440098Y (en) * | 2000-09-01 | 2001-07-25 | 厦门大学 | Fully-automatic door-controlling device for garage door |
| CN2596398Y (en) * | 2003-01-07 | 2003-12-31 | 於雅良 | Automatic door controller |
| CN201043403Y (en) * | 2007-04-25 | 2008-04-02 | 杨兴发 | Control circuit of automatic door |
| CN201699678U (en) * | 2010-06-25 | 2011-01-05 | 浙江正泰机床电气制造有限公司 | Inductance approach switch |
| CN102412821A (en) * | 2011-08-23 | 2012-04-11 | 何林 | Pyroelectric infrared human body approach control switch |
| CN102508304A (en) * | 2011-11-23 | 2012-06-20 | 韩春龙 | Hand-held metal detector |
| CN202395744U (en) * | 2011-11-23 | 2012-08-22 | 刘德军 | Induction type approach switch |
| CN203213797U (en) * | 2013-04-01 | 2013-09-25 | 周玉林 | Automatic door control circuit |
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| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 233000 Bengbu province high tech Zone in the East China Sea Road, No. 218, No. 5558 mailbox Applicant after: Zhou Yulin Address before: 233000 Anhui province Bengbu City Yuhui District Tourism Agency (painting Zhang Gong Shan Lu Tu Shan Lu South Side) Applicant before: Zhou Yulin |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130612 |