CN103197351B - Human body approaching automatic control device - Google Patents
Human body approaching automatic control device Download PDFInfo
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- CN103197351B CN103197351B CN201310111601.5A CN201310111601A CN103197351B CN 103197351 B CN103197351 B CN 103197351B CN 201310111601 A CN201310111601 A CN 201310111601A CN 103197351 B CN103197351 B CN 103197351B
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- 230000001939 inductive effect Effects 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims description 24
- 230000010355 oscillation Effects 0.000 claims description 23
- 229910052732 germanium Inorganic materials 0.000 claims description 14
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 13
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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Abstract
The invention discloses a human body approaching automatic control device which is characterized by comprising a 6v direct current power supply, an inductive probe, a high frequency oscillating circuit, a voltage-multiplying detector circuit, a phase inversion amplifying circuit and a relay driving circuit. An YTMW8631 type human body approaching sensor is a product authoritatively tested by a public security department and authenticated by China compulsory certification (CCC) and is widely applied to aspects such as finance and industry and commerce, self-service banks, automatic teller machine (ATM) monitoring human body approaching alarming and anti-theft devices. The human body approaching automatic control device is high in detection sensitivity and triggering reliability and can be directly triggered to alarm or start video detection monitoring equipment. Generally an existing automatic control device has reality problems such as high price. The whole human body approaching automatic control device uses common discrete components, achieves purposes of being low in manufacturing cost and high in work reliability, and enables technology of the human body approaching automatic control device to be popularized and used in more fields.
Description
Technical field
The invention belongs to electronic auto-control technology field, relate to a kind of human body proximity automaton.
Background technology
YTMW8631 type human body proximity inductor is the product by authoritative department inspection and CCC certification, and it has noncontact detection, does not affect, be adapted at using in rugged surroundings by temperature, humidity, noise, dust, light etc.; It is close that it accurately can find out neighbouring human body, is the better device at present as warning and detection human body proximity.Inductor moves very high detection sensitivity to neighbouring personage, inhibiting effect can be played to the voice signal of surrounding environment, there is very strong antijamming capability, be widely used in the detection human body proximities such as finance, market, self-help bank, ATM monitoring, burglar alarm, there is comparatively high detection sensitivity.It also can direct trigger alarm or start recording monitor equipment, but the realistic problem such as their ubiquity prices are high.
Human body proximity automaton of the present invention all uses common discrete component, achieves device cost of manufacture low, the object that functional reliability is high, and human body proximity automaton technology can be promoted the use of in more areas.
The correlation technique content that detailed human body proximity automaton of the present invention is involved in implementation process below.
Summary of the invention
Goal of the invention and beneficial effect: YTMW8631 type human body proximity inductor is the product by authoritative department inspection and CCC certification, and it has noncontact detection, does not affect, be adapted at using in rugged surroundings by temperature, humidity, noise, dust, light etc.; It is close that it accurately can find out neighbouring human body, is the better device at present as warning and detection human body proximity.Inductor moves very high detection sensitivity to neighbouring personage, inhibiting effect can be played to the voice signal of surrounding environment, there is very strong antijamming capability, be widely used in the detection human body proximities such as finance, market, self-help bank, ATM monitoring, burglar alarm, there is comparatively high detection sensitivity.It also can direct trigger alarm or start recording monitor equipment, but the realistic problem such as their ubiquity prices are high.Human body proximity automaton of the present invention all uses common discrete component, achieves device cost of manufacture low, the object that functional reliability is high, and human body proximity automaton technology can be promoted the use of in more areas.
Circuit working principle: as the inductive probe of human body not in human body proximity automaton (higher-order of oscillation transformer B), higher-order of oscillation transformer B can normally work, oscillator signal is after the detection of germanium diode D1 ~ D2 multiplication of voltage, obtain DC voltage and can make NPN transistor BG2 conducting, drive DC relay J coil contact J-1 to be switched on or switched off by NPN transistor BG3.When there being human body near inductive probe, due to the capacity of the distributed capacitance and electric capacity C3 that change inductive probe (higher-order of oscillation transformer B), make oscillatory circuit failure of oscillation, thus NPN transistor BG2 is ended, DC relay J coil losing electricity makes contact J-1 disconnect or connects.
Technical characteristic: human body proximity automaton, it comprises 6V direct supply, inductive probe and high-frequency oscillating circuits, multiplication of voltage detecting circuit, inverting amplifier circuit and relay drive circuit, it is characterized in that:
Inductive probe and high-frequency oscillating circuits: it is by higher-order of oscillation transformer B, oscillating capacitance C3, NPN transistor BG1, potentiometer W1, resistance R1 and shunt capacitance C1, negative feedback resistor R2 and negative feedback electric capacity C2 forms, the collector of NPN transistor BG1 connects one end of higher-order of oscillation transformer B the IIIth winding (primary coil) and one end of oscillating capacitance C3, the other end of higher-order of oscillation transformer B the IIIth winding and the other end connection circuit positive pole VCC of oscillating capacitance C3, the base stage of NPN transistor BG1 connects one end of potentiometer W1 and one end of biasing resistor R1 and one end of shunt capacitance C1 by higher-order of oscillation transformer B the IIth winding (secondary coil), the other end of potentiometer W1 and movable end connection circuit positive pole VCC thereof, the other end of biasing resistor R1 and the other end connection circuit ground GND of shunt capacitance C1, the emitter of NPN transistor BG1 connects one end of negative feedback resistor R2 and one end of negative feedback electric capacity C2, the other end of negative feedback resistor R2 and the other end connection circuit ground GND of negative feedback electric capacity C2,
Multiplication of voltage detecting circuit: it is made up of germanium diode D1 ~ D2 and filter capacitor C4, the negative pole of one termination germanium diode D1 of higher-order of oscillation transformer B the Ith winding (secondary coil) and the positive pole of germanium diode D2, the other end connection circuit ground GND of higher-order of oscillation transformer B the Ith winding, the positive pole connection circuit ground GND of germanium diode D1, the negative pole of germanium diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4;
Inverting amplifier circuit and relay drive circuit: it is by NPN transistor BG2, build-out resistor R3, pull-up resistor R4, NPN transistor BG3, potentiometer W2, relay J and protection diode D3 composition, the base stage of NPN transistor BG2 connects the negative pole of germanium diode D2 and one end of build-out resistor R3, the emitter of NPN transistor BG3 and the other end connection circuit ground GND of build-out resistor R3, the collector of NPN transistor BG2 is by pull-up resistor R4 connection circuit positive pole VCC, the base stage of NPN transistor BG3 connects the collector of NPN transistor BG2 and one end of potentiometer W2, the emitter of NPN transistor BG3 and the other end of potentiometer W2 and movable end connection circuit ground GND thereof, the collector of NPN transistor BG3 connects one end of DC relay J coil and the positive pole of protection diode D3, the other end of DC relay J coil and the negative pole connection circuit positive pole VCC of protection diode D3,
Described 6V DC power anode is connected with circuit anode VCC, and 6V DC power cathode is connected with circuit ground GND.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit working schematic diagram of human body proximity automaton; Inductive probe is with high frequency magnetic core higher-order of oscillation transformer, and the Ith winding is secondary coil, and the IIth winding is secondary coil, and the IIIth winding is primary coil.
Embodiment
Implement according to the technical requirement of circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation and the following stated, can the present invention be realized.
Components and parts title and important technological parameters
| No. haoHAO, element number | Components and parts title | Major parameter | Quantity | Remarks |
| BG1～BG3 | NPN transistor | 2SC9013, TO-92 plastic packaging | 3 | 3DG6 |
| B | Inductive probe (high-frequency transformer) | 5mm × 4mm magnetic core | 1 | 3 windings |
| D1～D2 | Germanium diode | 2AP9 or 1N60 | 2 | High-frequency diode |
| C1～C2 | Electric capacity | 0.1μF/63V | 2 | |
| C3 | Electric capacity | 560P | 1 | Oscillating capacitance |
| C4 | Electrochemical capacitor | 2.2μF/16V | 1 | Vertical |
| R1 | Resistance | 12KΩ | 1 | |
| R2 | Resistance | 5.1KΩ | 1 | Negative feedback |
| R3 | Resistance | 47KΩ | 1 | Biasing resistor |
| R4 | Resistance | 10KΩ | 1 | Pull-up resistor |
| W1 | Potentiometer | 430KΩ | 1 | Semi-fixed resistance |
| J | DC relay | Coil working voltage: 6V | 1 | |
| DC | Direct supply | 6V AC power source adapter |
Circuit production main points and circuit debugging
The making of inductive probe: inductive probe is exactly higher-order of oscillation transformer B, it is on ￠ 5mm, high 4mm " work " font high frequency magnetic core, with the coiling of ￠ 0.12mm enameled wire; The number of turn of 3 windings is respectively: the number of turn 25T of the Ith winding, the number of turn 11T of the IIth winding, the number of turn 55T of the IIIth winding; The order of coiling is first around the IIIth winding, then around the IIth winding, finally around the Ith winding, around the cured leaching envelope of complete rear high frequency;
In order to improve the sensitivity of inductive probe induction human body, metalwork can not be used fastening when higher-order of oscillation transformer B is installed, and the shell of this device can not use metal material;
The circuit working schematic diagram of accompanying drawing 1 to specifications, the welding correctness of whole components and parts and welding quality in check circuit, can connect 6V direct supply after errorless on inspection and debug;
If higher-order of oscillation transformer B not starting of oscillation, the two ends of the Ith winding coil or the IIth winding coil can be exchanged; If the oscillation intensity of high frequency oscillator is inadequate after adjustment, show as when sensing human body proximity, NPN transistor BG2 cut-off reliable not, so the number of turns of the Ith winding (secondary coil) of higher-order of oscillation transformer B suitably can be increased by 4 ~ 5T;
After this device connects 6V direct supply, with collector, the emitter of multimeter monitoring NPN transistor BG2, regulator potentiometer W1 makes NPN transistor BG2 conducting just, at this moment high frequency oscillator B is in more weak oscillatory regime, and with one piece of metal object slowly near inductive probe, NPN transistor BG2 should transfer cut-off to immediately, now sensitivity is the highest, the distance that inductive probe detects is maximum, carefully adjusts the parameter of potentiometer W1, makes the distance of reaction of inductive probe be not less than 110cm.
Claims (1)
1. a human body proximity automaton, it comprises 6V direct supply, inductive probe and high-frequency oscillating circuits, multiplication of voltage detecting circuit, inverting amplifier circuit and relay drive circuit, it is characterized in that:
Described inductive probe and high-frequency oscillating circuits are by higher-order of oscillation transformer (B), oscillating capacitance (C3), first NPN transistor (BG1), first potentiometer (W1), first resistance (R1) and shunt capacitance (C1), negative feedback resistor (R2) and negative feedback electric capacity (C2) composition, the collector of the first NPN transistor (BG1) connects the IIIth winding one end of higher-order of oscillation transformer (B) primary coil and one end of oscillating capacitance (C3), the other end of higher-order of oscillation transformer (B) the IIIth winding and the other end connection circuit positive pole (VCC) of oscillating capacitance (C3), the base stage of the first NPN transistor (BG1) connects one end of one end of the first potentiometer (W1) and one end of the first resistance (R1) and shunt capacitance (C1) by the IIth winding of higher-order of oscillation transformer (B) secondary coil, the other end of the first potentiometer (W1) and movable end connection circuit positive pole (VCC) thereof, the other end of the first resistance (R1) and other end connection circuit ground (GND) of shunt capacitance (C1), the emitter of the first NPN transistor (BG1) connects one end of negative feedback resistor (R2) and one end of negative feedback electric capacity (C2), the other end of negative feedback resistor (R2) and other end connection circuit ground (GND) of negative feedback electric capacity (C2),
Described multiplication of voltage detecting circuit is made up of two germanium diodes (D1 ~ D2) and filter capacitor (C4), the negative pole of one termination first germanium diode (D1) of higher-order of oscillation transformer (B) secondary coil the Ith winding and the positive pole of the second germanium diode (D2), other end connection circuit ground (GND) of higher-order of oscillation transformer (B) the Ith winding, positive pole connection circuit ground (GND) of the first germanium diode (D1), the negative pole of the second germanium diode (D2) connects the positive pole of filter capacitor (C4), negative pole connection circuit ground (GND) of filter capacitor (C4),
Described inverting amplifier circuit and relay drive circuit are by the second NPN transistor (BG2), build-out resistor (R3), pull-up resistor (R4), 3rd NPN transistor (BG3), second potentiometer (W2), relay (J) and protection diode (D3) composition, the base stage of the second NPN transistor (BG2) connects the negative pole of the second germanium diode (D2) and one end of build-out resistor (R3), the emitter of the 3rd NPN type third transistor (BG3) and other end connection circuit ground (GND) of build-out resistor (R3), the collector of the second NPN transistor (BG2) is by pull-up resistor (R4) connection circuit positive pole (VCC), the base stage of NPN transistor BG3 connects the collector of the second NPN transistor (BG2) and one end of the second potentiometer (W2), the emitter of the 3rd NPN transistor (BG3) and the other end of the second potentiometer (W2) and movable end connection circuit ground (GND) thereof, the collector of the 3rd NPN transistor (BG3) connects one end of DC relay (J) coil and the positive pole of protection diode (D3), the other end of DC relay (J) coil and the negative pole connection circuit positive pole (VCC) of protection diode (D3),
Described 6V DC power anode is connected with circuit anode VCC, and 6V DC power cathode is connected with circuit ground (GND).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310111601.5A CN103197351B (en) | 2013-04-01 | 2013-04-01 | Human body approaching automatic control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310111601.5A CN103197351B (en) | 2013-04-01 | 2013-04-01 | Human body approaching automatic control device |
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| CN103197351A CN103197351A (en) | 2013-07-10 |
| CN103197351B true CN103197351B (en) | 2015-04-22 |
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| CN201310111601.5A Expired - Fee Related CN103197351B (en) | 2013-04-01 | 2013-04-01 | Human body approaching automatic control device |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2509323B (en) | 2012-12-28 | 2015-01-07 | Glide Talk Ltd | Reduced latency server-mediated audio-video communication |
| CN103475350A (en) * | 2013-09-25 | 2013-12-25 | 谭林明 | Sensor of trace metal vortex type proximity switch |
| CN105249878A (en) * | 2015-11-10 | 2016-01-20 | 吴圣铎 | Proximity automatic hand drying device |
| CN105242320A (en) * | 2015-11-19 | 2016-01-13 | 吴建堂 | Human foot sensing-type automatic shoe polisher |
| CN105783192A (en) * | 2016-04-11 | 2016-07-20 | 周云侠 | Electromagnetic induction type air-conditioner standby control device for detecting human body |
| CN106530537A (en) * | 2016-12-26 | 2017-03-22 | 吴圣铎 | Human-body-approaching type electromagnetic induction music doorbell |
| CN113752980B (en) * | 2021-08-12 | 2022-07-29 | 深圳市有为信息技术发展有限公司 | Anti-dismantling equipment and monitoring system for tractor and trailer |
| CN113370924B (en) * | 2021-08-12 | 2021-11-16 | 深圳市有为信息技术发展有限公司 | Anti-dismantling box and anti-dismantling system for vehicle-mounted monitoring terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20017457U1 (en) * | 2000-10-11 | 2001-01-25 | DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach | Touch sensor |
| CN202145340U (en) * | 2011-07-29 | 2012-02-15 | 刘昭利 | Capacitance bridge type human body approaching alarm |
| CN102412821A (en) * | 2011-08-23 | 2012-04-11 | 何林 | Pyroelectric infrared human body approach control switch |
| CN102419886A (en) * | 2011-12-13 | 2012-04-18 | 陈子杨 | Capacitance human body approach alarming control device |
| CN202395743U (en) * | 2011-12-29 | 2012-08-22 | 魏传永 | Infrared human body proximity switch assembly |
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2013
- 2013-04-01 CN CN201310111601.5A patent/CN103197351B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20017457U1 (en) * | 2000-10-11 | 2001-01-25 | DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach | Touch sensor |
| CN202145340U (en) * | 2011-07-29 | 2012-02-15 | 刘昭利 | Capacitance bridge type human body approaching alarm |
| CN102412821A (en) * | 2011-08-23 | 2012-04-11 | 何林 | Pyroelectric infrared human body approach control switch |
| CN102419886A (en) * | 2011-12-13 | 2012-04-18 | 陈子杨 | Capacitance human body approach alarming control device |
| CN202395743U (en) * | 2011-12-29 | 2012-08-22 | 魏传永 | Infrared human body proximity switch assembly |
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