CN202189156U - Moving object inductive circuit - Google Patents
Moving object inductive circuit Download PDFInfo
- Publication number
- CN202189156U CN202189156U CN2011202959518U CN201120295951U CN202189156U CN 202189156 U CN202189156 U CN 202189156U CN 2011202959518 U CN2011202959518 U CN 2011202959518U CN 201120295951 U CN201120295951 U CN 201120295951U CN 202189156 U CN202189156 U CN 202189156U
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Abstract
The utility model discloses a moving object inductive circuit comprising a high-frequency oscillation circuit and a filter circuit, wherein the high-frequency oscillation circuit comprises an oscillation and amplification transistor T1, a collector electrode of the oscillation and amplification transistor T1 is connected with a transmitting antenna, and connected with a power supply VCC, a base electrode of the oscillation and amplification transistor T1 is connected with a resistor R2 and a resistor R3, the other end of the resistor R2 is grounded, the other end of the resistor R3 is connected with one end of a resistor R1 and a capacitor C5 respectively, the other end of the resistor R1 is connected with the power supply VCC, the other end of the capacitor C5 is grounded, a series circuit is formed by the resistor R1 and the capacitor C5 which are connected with the receiving antenna, an emitting electrode of the oscillation and amplification transistor T1 is connected with a resistor R5 and a capacitor C6, the other end of the resistor R5 and other end of the capacitor C6 are respectively grounded, and the filter circuit is connected on the capacitor C6. The utility model aims at providing a moving object inductive circuit which cannot be influenced by ambient temperature, and is high in sensitivity.
Description
[technical field]
The utility model relates to a kind of mobile object sensor circuit.
[background technology]
It is the infrared signal that feeling of passivity answers human body to send that traditional human heat discharges the induction delay switch; When environment temperature is low; Heat is released probe and is prone to detect the infrared signal that mobile human body discharges, if but during environment temperature higher (above 25 ℃), because the infrared signal of human body release is submerged in the spurious signal of hot environment; Heat releases that probe is difficult to detect the infrared signal that mobile human body discharges, and causes the sensitivity of human body sensing delay switch to reduce.Along with the continuous rising of environment temperature, the sensitivity of human body sensing delay switch descends rapidly, and the distance outside 1 meter can't detect human infrared signal, and human induction switch can't start, and can't open light fixture etc.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, a kind of border temperature effect that do not receive is provided, highly sensitive mobile object sensor circuit.
For realizing above-mentioned purpose, the utility model has adopted following technical proposal:
A kind of mobile object sensor circuit; Include high-frequency oscillating circuits and filtering circuit; Said high-frequency oscillating circuits comprises vibration amplifying triode T1, and the collector of vibration amplifying triode T1 is connected with emitting antenna, and the collector of vibration amplifying triode T1 meets power supply VCC simultaneously; The base stage of vibration amplifying triode T1 is connected to resistance R 2, resistance R 3; Resistance R 2 other end ground connection; The other end of resistance R 3 is connected respectively with capacitor C 5 one ends with resistance R 1 one ends, resistance R 1 another termination power VCC, capacitor C 5 other end ground connection; Resistance R 1 forms series circuit with capacitor C 5, and resistance R 1 is connected with receiving antenna with capacitor C 5; The emitter connecting resistance R5 of said vibration amplifying triode T1, capacitor C 6, resistance R 5 other ends and capacitor C 6 other ends are ground connection respectively; Said filtering circuit is connected on the capacitor C 6.
Said filtering circuit 2 comprises resistance R 4, capacitor C 7, capacitor C 8, resistance R 4 one ends with connect capacitor C 6 one ends after capacitor C 7 one ends are connected, capacitor C 7 other end ground connection, resistance R 4 other ends are through said capacitor C 8 back ground connection.
Two ends at resistance R 1 and capacitor C 5 series circuits are parallel with a plurality of filter capacitors.
The beneficial effect of the utility model is: send faint microwave signal by high-frequency oscillating circuits; Mobile object is arranged in the scope of 8-10 rice; The microwave variable signal that is moved reflection object by oscillatory circuit receive amplify after, being exaggerated to detect in the scope of surveying with testing circuit has mobile object, the restart switch circuit; Open light fixture, electric fan even load, can realize the automatic control action of " object comes that lamp is bright, object go lamp to go out ".The sensitivity of surveying delay switch does not receive the influence of environment temperature, is fit to very much be installed in the places such as corridor, corridor, underground parking, garage, toilet of utilities building and residential houses, is the desirable upgraded product of human heat release inductive switch.
[description of drawings]
Fig. 1 is the circuit theory diagrams of the utility model.
[embodiment]
A kind of mobile object sensor circuit; Include high-frequency oscillating circuits 1 and filtering circuit 2; Said high-frequency oscillating circuits 1 comprises vibration amplifying triode T1, and the collector of amplifying triode T1 is connected with emitting antenna, and the collector of vibration amplifying triode T1 meets power supply VCC simultaneously; The base stage of amplifying triode T1 is connected to resistance R 2, resistance R 3; Resistance R 2 other end ground connection; The other end of resistance R 3 is connected respectively with capacitor C 5 one ends with resistance R 1 one ends, resistance R 1 another termination power VCC, capacitor C 5 other end ground connection; Resistance R 1 forms series circuit with capacitor C 5, and resistance R 1 is connected with receiving antenna with capacitor C 5; The emitter connecting resistance R5 of said vibration amplifying triode T1, electric capacity R6, resistance R 5 other ends and the electric capacity R6 other end be ground connection respectively; Said filtering circuit 2 is connected on the capacitor C 6.
Said filtering circuit 2 comprises resistance R 4, capacitor C 7, capacitor C 8, resistance R 4 one ends with connect capacitor C 6 one ends after capacitor C 7 one ends are connected, capacitor C 7 other end ground connection, resistance R 4 other ends are through said capacitor C 8 back ground connection.
Two ends at resistance R 1 and capacitor C 5 series circuits are parallel with a plurality of electric capacity, are 4 in the utility model, are respectively capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4.
The principle of work of the utility model is following:
The high-frequency oscillating circuits that vibration amplifying triode T1, resistance R 1, resistance R 2, resistance R 3, resistance R 5, capacitor C 5, capacitor C 6 are formed; This circuit produces high-frequency oscillation signal; The emitting antenna of signal through vibration amplifying triode T1 collector circuit be directive sending forwards; In mobile object appears at investigative range; Reflection wave receives through the receiving antenna of vibration amplifying triode T1 base circuit, amplifies the back through vibration amplifying triode T1 and after the π type filtering circuit filtering that vibration amplifying triode T1 emitter is formed through resistance R 4, capacitor C 7, capacitor C 8, exports to amplification, testing circuit.After amplification of signal process and the detection, driving switch circuit, unlatching on-off circuit, automatic off switch after the time-delay.Oscillatory circuit replaces the human infrared signal probe; The infrared signal of answering human body to send by the infrared probe feeling of passivity transfers to by oscillator-amplification circuit initiatively sends high-frequency signal, survey again the variation waveform that is moved reflection object through amplification and arrangement after the signal that has mobile object in investigative range, to occur seen off.The signal that transmits and receives is owing to the influence that does not receive environment temperature, so the sensitivity of surveying does not receive the influence of environment temperature.
Claims (3)
1. mobile object sensor circuit; It is characterized in that including high-frequency oscillating circuits (1) and filtering circuit (2); Said high-frequency oscillating circuits (1) comprises vibration amplifying triode T1; The collector of vibration amplifying triode T1 is connected with emitting antenna, and the collector of vibration amplifying triode T1 meets power supply VCC simultaneously; The base stage of vibration amplifying triode T1 is connected to resistance R 2, resistance R 3; Resistance R 2 other end ground connection; The other end of resistance R 3 is connected respectively with capacitor C 5 one ends with resistance R 1 one ends, resistance R 1 another termination power VCC, capacitor C 5 other end ground connection; Resistance R 1 forms series circuit with capacitor C 5, and resistance R 1 is connected with receiving antenna with capacitor C 5; The emitter connecting resistance R5 of said vibration amplifying triode T1, capacitor C 6, resistance R 5 other ends and capacitor C 6 other ends are ground connection respectively; Said filtering circuit (2) is connected on the capacitor C 6.
2. a kind of object sensor circuit according to claim 1; It is characterized in that said filtering circuit (2) comprises resistance R 4; Capacitor C 7, capacitor C 8, resistance R 4 one ends with connect capacitor C 6 one ends after capacitor C 7 one ends are connected; Capacitor C 7 other end ground connection, resistance R 4 other ends are through said capacitor C 8 back ground connection.
3. a kind of mobile object sensor circuit according to claim 1 is characterized in that being parallel with a plurality of filter capacitors at the two ends of resistance R 1 and capacitor C 5 series circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202959518U CN202189156U (en) | 2011-08-13 | 2011-08-13 | Moving object inductive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202959518U CN202189156U (en) | 2011-08-13 | 2011-08-13 | Moving object inductive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189156U true CN202189156U (en) | 2012-04-11 |
Family
ID=45920596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202959518U Expired - Fee Related CN202189156U (en) | 2011-08-13 | 2011-08-13 | Moving object inductive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189156U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255118A (en) * | 2019-06-04 | 2019-09-20 | 仵军红 | A kind of food inspection transmission device with screening function |
-
2011
- 2011-08-13 CN CN2011202959518U patent/CN202189156U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255118A (en) * | 2019-06-04 | 2019-09-20 | 仵军红 | A kind of food inspection transmission device with screening function |
| CN110255118B (en) * | 2019-06-04 | 2021-01-05 | 仵军红 | Food detection and conveying device with screening function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |