CN208369553U - Radar inductive switching circuit - Google Patents
Radar inductive switching circuit Download PDFInfo
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- CN208369553U CN208369553U CN201821073777.0U CN201821073777U CN208369553U CN 208369553 U CN208369553 U CN 208369553U CN 201821073777 U CN201821073777 U CN 201821073777U CN 208369553 U CN208369553 U CN 208369553U
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- radar
- inductive switching
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- switching circuit
- signal
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Abstract
The utility model is suitable for radar induction technology field, provides a kind of radar inductive switching circuit comprising: radar signal module, oscillating circuit and transmitting antenna including electric connection；Radar signal receiving module, including a receiving antenna；Signal processing module, including the shift detector part connecting with receiving antenna, which is connected with the first filter circuit；Amplifier module, for received frequency shift signal enhanced processing；Control module, for controlling the operation of load circuit according to amplified frequency shift signal.Whereby, the radar remote manipulation of the utility model is low in energy consumption, structure is simple, and reliability is higher.
Description
Technical field
The utility model relates to radar induction technology field more particularly to a kind of radar inductive switching circuits.
Background technique
Remote control switch is that one of product is commonly used in modern industry or Modern Family, it by moveable remote control transmitter,
And the switch receiver composition being fixed on the wall, on-off mode can be using the Operation switches directly on panel or using sound
The remote control modes such as control, infrared or radio wave carry out.The existing remote control switch method of operation there is control modes single, power consumption
Height is influenced by use environment, poor reliability, operates with the defects of inconvenience.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Utility model content
For above-mentioned defect, the purpose of this utility model is to provide a kind of radar inductive switching circuits, are remotely controlled function
Consume that low, structure is simple, reliability is higher.
To achieve the goals above, the utility model provides a kind of radar inductive switching circuit, comprising:
Radar signal module, oscillating circuit and transmitting antenna including electric connection；
Radar signal receiving module, including a receiving antenna；
Signal processing module, including the shift detector part being connect with the receiving antenna, shift detector part connection
There is the first filter circuit；
Amplifier module, for received frequency shift signal enhanced processing；
Control module, for controlling the operation of load circuit according to amplified frequency shift signal.
Radar inductive switching circuit according to the present utility model, the oscillating circuit is RC oscillating circuit, for emitting height
Frequency microwave.
Radar inductive switching circuit according to the present utility model, the oscillating circuit include four capacitors in parallel, and
Resistance.
Radar inductive switching circuit according to the present utility model, the shift detector part are triode, the triode
Collector connects the oscillating circuit.
Radar inductive switching circuit according to the present utility model, first filter circuit include the base with the triode
The RC filter circuit of pole connection.
Radar inductive switching circuit according to the present utility model, the receiving antenna are loop aerial, connection described three
The emitter of pole pipe.
Radar inductive switching circuit according to the present utility model, the amplifier module prime are additionally provided with the second filtered electrical
Road.
Radar inductive switching circuit according to the present utility model, also sets between the base stage of the triode and the first filter circuit
There is decoupling antenna.
Radar inductive switching circuit according to the present utility model, the triode are BFR520.
The utility model provides a kind of radar inductive switching circuit comprising: radar signal module, including electrical property
The oscillating circuit and transmitting antenna of connection；Radar signal receiving module, including a receiving antenna；Signal processing module, including with
The shift detector part of receiving antenna connection, the shift detector part are connected with the first filter circuit；Amplifier module, for docking
The frequency shift signal enhanced processing of receipts；Control module, for controlling the operation of load circuit according to amplified frequency shift signal.It borrows
This, the radar remote manipulation of the utility model is low in energy consumption, structure is simple, and reliability is higher.
Detailed description of the invention
Fig. 1 is the radar inductive switching circuit theory schematic diagram of the utility model；
Fig. 2 is the electrical block diagram of an embodiment of the present invention.
10- radar signal module in the figure, 11- oscillating circuit, 12- transmitting antenna, 20- radar signal receive mould
Block, 21- receiving antenna, 30- signal processing module, 31- shift detector part, the first filter circuit of 32-, 40- amplifier module,
50- control module.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of radar sensor circuit, which is particularly applicable to
The induction control of default object such as incudes control illumination device illumination after human body, or controls accordingly after detecting other objects
Device make certain movement.Radar sensor circuit includes:
Radar signal module 10, oscillating circuit 11 and transmitting antenna 12 including electric connection.The utility model one
The oscillating circuit 11 that embodiment uses is RC oscillating circuit, for emitting high-frequency microwave.The oscillating circuit 11 includes four parallel connections
Capacitor C2~C5, and with it is in parallel after each capacitor be electrically connected resistance R1.The adjustable capacitor of oscillating circuit 11 or electricity
The value of R1 is hindered, to reach the high-frequency microwave signal of highest 5.6GHz.The quantity and shape of transmitting antenna 12 can be according to transmitting need
Setting is asked, the adjustment of being adapted to property of those skilled in the art, details are not described herein.
Radar signal receiving module 20, including a receiving antenna 21.Receiving antenna 21 is loop aerial, so that it can be more
The radar signal that good reception returns, the receiving antenna 21 can receive mobile and right by human body, the isometric big object of automobile
The microwave reflection launched is returned frequency shift signal.
Signal processing module 30, including the shift detector part 31 being connect with receiving antenna 21, the shift detector part 31
It is connected with the first filter circuit 32.Specifically, shift detector part 31 is triode, the collector connection oscillation electricity of the triode
Road 11.After receiving antenna 21 receives signal, beat detects small frequency shift signal after the semiconductor PN mixing in triode,
Then late-class circuit processing is transferred signals to.
Amplifier module 40, for received frequency shift signal enhanced processing.Frequency shift signal is control module 50 to control
The important parameter of load running, by the signal enhanced processing after frequency displacement, can be realized preferably consequently, to facilitate differentiating and identifying
Control.Such as according to amplification demand, 5 times, 6 times and 10 times of amplification etc..
Control module 50, for controlling the operation of load circuit according to amplified frequency shift signal.The work of load circuit
By the control of control module 50.Photoswitc is such as controlled according to frequency shift signal, in some specific regions, such as darker corridor,
Basement etc. can directly control opening light as long as the presence for detecting human body.
Certainly, control module 50 is at least provided with storage unit and comparing unit.Storage unit is preset all kinds of for storing
Possible object detection data, comparing unit are then used to judge preset data and frequency shift signal comparison, be detected with acquisition
Object type.
In one embodiment of the utility model, the first filter circuit includes the RC filtered electrical connecting with the base stage of triode Q1
Road.The RC filter circuit includes capacitor C1 and resistance R2 and R3.The resistance value of R2 is 4.7K ohm, the resistance value of R3 for 1.24K~
1.5K ohm.The emitter of 21 connecting triode Q1 of receiving antenna.
40 prime of amplifier module is additionally provided with the second filter circuit, which includes capacitor C6 and electricity in parallel
Hinder R4 and R5.It is additionally provided with decoupling antenna between the base stage of triode Q1 and the first filter circuit, can preferably control distance of reaction.
Preferably, the triode Q1 of the utility model uses BFR520, is high-frequency triode of the frequency up to 9GHz, most
Big collector current is 70mA.
Preferably, there is electric source filter circuit between the power supply and circuit of the utility model, for filtering out exchange clutter, prevent
Only the clutter in AC power source, which is mixed into, interferes.
In conclusion the utility model provides a kind of radar inductive switching circuit comprising: radar signal mould
Block, oscillating circuit and transmitting antenna including electric connection；Radar signal receiving module, including a receiving antenna；Signal processing
Module, including the shift detector part connecting with receiving antenna, which is connected with the first filter circuit；Amplifier mould
Block, for received frequency shift signal enhanced processing；Control module, for controlling load circuit according to amplified frequency shift signal
Operation.Whereby, the radar remote manipulation of the utility model is low in energy consumption, structure is simple, and reliability is higher.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications, but these according to the utility model
Corresponding changes and modifications all should belong to the protection scope of the utility model the attached claims.
Claims (9)
1. a kind of radar inductive switching circuit characterized by comprising
Radar signal module, oscillating circuit and transmitting antenna including electric connection；
Radar signal receiving module, including a receiving antenna；
Signal processing module, including the shift detector part connecting with the receiving antenna, which is connected with
One filter circuit；
Amplifier module, for received frequency shift signal enhanced processing；
Control module, for controlling the operation of load circuit according to amplified frequency shift signal.
2. radar inductive switching circuit according to claim 1, which is characterized in that the oscillating circuit is RC oscillation electricity
Road, for emitting high-frequency microwave.
3. radar inductive switching circuit according to claim 1, which is characterized in that the oscillating circuit includes four parallel connections
Capacitor and resistance.
4. radar inductive switching circuit according to claim 3, which is characterized in that the shift detector part is three poles
The collector of pipe, the triode connects the oscillating circuit.
5. radar inductive switching circuit according to claim 4, which is characterized in that first filter circuit includes and institute
State the RC filter circuit of the base stage connection of triode.
6. radar inductive switching circuit according to claim 4, which is characterized in that the receiving antenna is loop aerial,
Its emitter for connecting the triode.
7. radar inductive switching circuit according to claim 4, which is characterized in that the amplifier module prime is additionally provided with
Second filter circuit.
8. radar inductive switching circuit according to claim 5, which is characterized in that the base stage of the triode and the first filter
Decoupling antenna is additionally provided between wave circuit.
9. according to the described in any item radar inductive switching circuits of claim 4~8, which is characterized in that the triode is
BFR520。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821073777.0U CN208369553U (en) | 2018-07-07 | 2018-07-07 | Radar inductive switching circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821073777.0U CN208369553U (en) | 2018-07-07 | 2018-07-07 | Radar inductive switching circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369553U true CN208369553U (en) | 2019-01-11 |
Family
ID=64924789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821073777.0U Active CN208369553U (en) | 2018-07-07 | 2018-07-07 | Radar inductive switching circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208369553U (en) |
-
2018
- 2018-07-07 CN CN201821073777.0U patent/CN208369553U/en active Active
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