CN203129833U - Induction type automatic door control switch - Google Patents
Induction type automatic door control switch Download PDFInfo
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- CN203129833U CN203129833U CN2013201583056U CN201320158305U CN203129833U CN 203129833 U CN203129833 U CN 203129833U CN 2013201583056 U CN2013201583056 U CN 2013201583056U CN 201320158305 U CN201320158305 U CN 201320158305U CN 203129833 U CN203129833 U CN 203129833U
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Abstract
The utility model relates to an induction type automatic door control switch, which is technically characterized by comprising a 12V direct-current power supply, a radio frequency oscillation circuit, a voltage-multiplying detector circuit, a direct-current amplification and status indication circuit, and a direct-current relay drive circuit. Most automatic doors in public places adopt pyroelectric infrared probes, after the pyroelectric infrared probes receive weak infrared signals sent by a human body, the infrared signals are amplified through an amplifying circuit, and a direct-current relay is driven to control a reversing motor to work, so that the aims that the door is automatically opened when people come, and the door is automatically closed when people leave are realized. The induction type automatic door control switch does not use a human body heat source as a signal source, but utilize induction generated when a human body or a vehicle approaches as a control signal for automatically opening or closing the door. A circuit of the induction type automatic door control switch has the characteristics that design structure is concise, the work performance is reliable, all circuits are manufactured by common electron components, the manufacturing cost is low, and the like.
Description
Technical field
The utility model belongs to the electronic auto-control technology field, relates to a kind of induction type automatic door gauge tap.
Background technology
The most pyroelectric infrared transducers that adopt of the automatic door of public place, after pyroelectric infrared transducer receives the faint infrared signal that human body sends, by amplifying circuit infrared signal is amplified, drive the work of DC relay control reversing motor then, realized that people Lai Shimen opens automatically, the purpose that door was closed automatically when the people left.
Induction type automatic door gauge tap described in the utility model not end user's body heat source as signal source, but utilize human body or vehicle near the time induction that the produces control signal of opening or closing automatically automatically as the gate.The circuit of induction type automatic door gauge tap has that project organization is succinct, reliable working performance, circuit use all that the ordinary electronic components and parts are made, characteristics such as cheap.
Induction type automatic door gauge tap described in the utility model also can also use as the monitoring prime assembly of security protection electronic product as using near switch aspect Other Engineering control.
Below describe induction type automatic door gauge tap described in the utility model related relevant technologies content in implementation process in detail.
The utility model content
Goal of the invention and beneficial effect: the most pyroelectric infrared transducers that adopt of the automatic door of public place, after pyroelectric infrared transducer receives the faint infrared signal that human body sends, by amplifying circuit infrared signal is amplified, drive the work of DC relay control reversing motor then, realized that people Lai Shimen opens automatically, the purpose that door was closed automatically when the people left.Induction type automatic door gauge tap described in the utility model not end user's body heat source as signal source, but utilize human body or vehicle near the time induction that the produces control signal of opening or closing automatically automatically as the gate.The circuit of induction type automatic door gauge tap has that project organization is succinct, reliable working performance, circuit use all that the ordinary electronic components and parts are made, characteristics such as cheap.
The circuit working principle: induction type automatic door gauge tap is amplified by induction antenna, strength circuit, multiplication of voltage detecting circuit, direct current signal and the DC relay drive circuit is formed.It constitutes the strength circuit by NPN type triode BG1 and peripheral cell, and induction antenna is connected on the colelctor electrode of NPN type triode BG1.When not having human body or vehicle near induction antenna, the oscillating circuit operate as normal that NPN type triode BG1 forms, this moment, the emitter stage output radio-frequency voltage signal of NPN type triode BG1 became dc control signal after detector diode D～D2 detection, and this signal can make NPN type triode BG3 conducting DC relay J get electric adhesive; As human body or vehicle during near induction antenna, since human body or vehicle near induction antenna will change induction antenna and " " between distribution capacity, and the increase of capacitance can reduce the amount of oscillator positive feedback until the oscillating circuit failure of oscillations, in case oscillating circuit failure of oscillation, the radio frequency detecting circuit is just no longer exported dc control signal, this moment, NPN type triode BG3 will end, DC relay J coil losing electricity contact is discharged, then the constant close contact of DC relay J is connected, and controlled gate will be opened automatically.The time-delay closing time after the capacity of filter capacitor C4 is determining the gate to open, its capacity is adjusted according to actual needs.
Technical scheme: induction type automatic door gauge tap, it comprises 12V dc source, strength circuit, multiplication of voltage detecting circuit, direct current amplification and condition indication circuit, DC relay drive circuit, it is characterized in that:
The strength circuit: it is by induction antenna, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R 1, capacitor C 1 and resistance R 2 are formed, the end of the base stage connecting resistance R1 of NPN type triode BG1 and an end of capacitor C 1, the anodal VCC of the other end connection circuit of resistance R 1, the other end connection circuit ground GND of capacitor C 1, the colelctor electrode of NPN type triode BG1 connects induction antenna, the end of oscillator coil L1 and the end of tunable capacitor C2, the anodal VCC of the other end connection circuit of oscillator coil L1, the emitter stage of NPN type triode BG1 connects the other end of tunable capacitor C2 and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2;
The multiplication of voltage detecting circuit: it is by coupling capacitance C3, detector diode D1, detector diode D2 and filter capacitor C4 form, the emitter stage of the termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination detector diode D1 of coupling capacitance C3 and the positive pole of detector diode D2, the anodal connection circuit ground GND of detector diode D1, the negative pole of detector diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4;
Direct current signal amplifies and condition indication circuit: it is made up of NPN type triode BG2, red light emitting diodes LED and dropping resistor R5, the base stage of NPN type triode BG2 connects the negative pole of detector diode D2, the colelctor electrode of NPN type triode BG2 connects the negative pole of red light emitting diodes LED, the positive pole of red light emitting diodes LED is by the anodal VCC of resistance R 5 connection circuits, the emitter stage connection circuit ground GND of NPN type triode BG2;
The DC relay drive circuit: it is made up of NPN type triode BG3, DC relay J and protection diode D3, the base stage of NPN type triode BG3 connects the colelctor electrode of NPN type triode BG2, the colelctor electrode of NPN type triode BG3 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 BG3;
The positive pole of 12V dc source links to each other with circuit anode VCC, and the negative pole of 12V dc source links to each other with circuit ground GND.
Description of drawings
Accompanying drawing 1 is the circuit working schematic diagram of induction type automatic door gauge tap, and the material therefor of induction antenna and preparation method see the explanation among the embodiment for details in the accompanying drawing 1.
The specific embodiment
Circuit working schematic diagram and description of drawings according to the induction type automatic door gauge tap shown in the accompanying drawing 1, and according to annexation between the components and parts in the described each several part circuit of utility model content, and the components and parts technical data described in the embodiment requires and the circuit production main points are implemented to realize the utility model, below in conjunction with embodiment correlation technique of the present utility model is further described.
Component parameters is seen components and parts title and technical data table
| Element number haoHAO number | The components and parts title | Technical data | Quantity | Remarks |
| BG1 | NPN type triode | 2CS9018、β≥100 | 1 | Plastic packaging |
| BG2～BG3 | NPN type triode | 2CS9014、β≥200 | 2 | Plastic packaging |
| D1、D2 | Detector diode | Glassivation, 1N60 | 2 | Or select 2AP10 for use |
| D3 | The protection diode | 1N4001 | 1 | Silicon rectifier diode |
| L1 | Oscillator coil | 3mH～4mH colour coding inductance | 1 | ? |
| R1 | Resistance | 1/8W?、10KΩ | 1 | Biasing resistor |
| R2 | Resistance | 1/8W、4.7KΩ | 1 | ? |
| R3 | Resistance | 1/8W、3.3KΩ | 1 | Coupling |
| C1 | Electric capacity | 0.01μF | 1 | Ceramic disc capacitor |
| C2 | Tunable capacitor | 5～20PF? | 1 | Oscillating capacitance |
| C3 | Electric capacity | 820PF | 1 | Capacity is unsuitable big |
| C4 | Filter capacitor | 3.3μF | 1 | Capacity is adjusted as required |
| J | DC relay | JRX-13F type, 12V | 1 | Electric current≤50mA |
| Induction antenna | Induction antenna | Area＞400mm * 50mm | 1 | Aluminium plate thickness 1mm |
Circuit production main points and circuit debugging
The making of induction antenna: selecting thickness for use is 1mm aluminium sheet or copper sheet, requires the long 400mm of size of induction antenna, wide 50mm, and for improving the sensitivity of induction antenna, the dimensioned area of induction antenna can be suitably big;
Because of the circuit structure of induction type automatic door gauge tap fairly simple, as long as the electronic devices and components performance of selecting for use generally speaking is intact, and the components and parts annexation in the accompanying drawing 1 is welded to specifications, after physical connection line and welding quality were correct through scrutiny, circuit of the present utility model did not need to carry out any debugging substantially and gets final product operate as normal;
Two thresholds of starting of oscillation, failure of oscillation of the whole strength circuit of the adjustable size of tunable capacitor C2 capacity are mainly used in regulating human body or vehicle near the sensitivity of induction antenna distance; The time-delay closing time after the capacity of filter capacitor C4 is determining the gate to open, its capacity is adjusted according to actual needs;
Oscillator coil L1 is the colour coding inductance, and inductance value is 3mH～4mH, if the inductance value of oscillator coil L1 during greater than 4mH, needs suitably to increase the capacity of tunable capacitor C2, thereby makes the starting of oscillation smoothly of strength circuit;
Other dc point does not need debugging to get final product operate as normal, complete machine maximum operating currenbt≤56mA substantially.
Claims (1)
1. induction type automatic door gauge tap, it comprises 12V dc source, strength circuit, multiplication of voltage detecting circuit, direct current amplification and condition indication circuit, DC relay drive circuit, it is characterized in that:
Described strength circuit is by induction antenna, NPN type triode BG1, oscillator coil L1, tunable capacitor C2, resistance R 1, capacitor C 1 and resistance R 2 are formed, the end of the base stage connecting resistance R1 of NPN type triode BG1 and an end of capacitor C 1, the anodal VCC of the other end connection circuit of resistance R 1, the other end connection circuit ground GND of capacitor C 1, the colelctor electrode of NPN type triode BG1 connects induction antenna, the end of oscillator coil L1 and the end of tunable capacitor C2, the anodal VCC of the other end connection circuit of oscillator coil L1, the emitter stage of NPN type triode BG1 connects the other end of tunable capacitor C2 and an end of resistance R 2, the other end connection circuit ground GND of resistance R 2;
Described multiplication of voltage detecting circuit is by coupling capacitance C3, detector diode D1, detector diode D2 and filter capacitor C4 form, the emitter stage of the termination NPN type triode BG1 of coupling capacitance C3, the negative pole of another termination detector diode D1 of coupling capacitance C3 and the positive pole of detector diode D2, the anodal connection circuit ground GND of detector diode D1, the negative pole of detector diode D2 connects the positive pole of filter capacitor C4, the negative pole connection circuit ground GND of filter capacitor C4;
Described direct current signal amplifies and condition indication circuit is made up of NPN type triode BG2, red light emitting diodes LED and dropping resistor R5, the base stage of NPN type triode BG2 connects the negative pole of detector diode D2, the colelctor electrode of NPN type triode BG2 connects the negative pole of red light emitting diodes LED, the positive pole of red light emitting diodes LED is by the anodal VCC of resistance R 5 connection circuits, the emitter stage connection circuit ground GND of NPN type triode BG2;
Described DC relay drive circuit is made up of NPN type triode BG3, DC relay J and protection diode D3, the base stage of NPN type triode BG3 connects the colelctor electrode of NPN type triode BG2, the colelctor electrode of NPN type triode BG3 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 BG3;
The positive pole of described 12V dc source links to each other with circuit anode VCC, and the negative pole of 12V dc source links to each other with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201583056U CN203129833U (en) | 2013-04-01 | 2013-04-01 | Induction type automatic door control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201583056U CN203129833U (en) | 2013-04-01 | 2013-04-01 | Induction type automatic door control switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203129833U true CN203129833U (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201583056U Expired - Fee Related CN203129833U (en) | 2013-04-01 | 2013-04-01 | Induction type automatic door control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203129833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233644A (en) * | 2013-04-01 | 2013-08-07 | 刘喆 | Induction-type automatic door control switch |
| CN103758193A (en) * | 2014-02-18 | 2014-04-30 | 吴圣铎 | Automatic human body proximity flushing device of urinal |
-
2013
- 2013-04-01 CN CN2013201583056U patent/CN203129833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103233644A (en) * | 2013-04-01 | 2013-08-07 | 刘喆 | Induction-type automatic door control switch |
| CN103758193A (en) * | 2014-02-18 | 2014-04-30 | 吴圣铎 | Automatic human body proximity flushing device of urinal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20140401 |