CN208506238U - A kind of radar automatic sensing switch - Google Patents
A kind of radar automatic sensing switch Download PDFInfo
- Publication number
- CN208506238U CN208506238U CN201821152764.2U CN201821152764U CN208506238U CN 208506238 U CN208506238 U CN 208506238U CN 201821152764 U CN201821152764 U CN 201821152764U CN 208506238 U CN208506238 U CN 208506238U
- Authority
- CN
- China
- Prior art keywords
- circuit
- capacitor
- operational amplifier
- diode
- pcb board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 101000639792 Homo sapiens U2 small nuclear ribonucleoprotein A' Proteins 0.000 claims description 5
- 102100034465 U2 small nuclear ribonucleoprotein A' Human genes 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 230000006698 induction Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model is a kind of radar automatic sensing switch, including signal demodulator circuit, signal demodulator circuit include input end capacitor C6, and one end of input end capacitor C6 is connected with the output end of signal increasing circuitry；The other end of the input end capacitor C6 is connected with the anode of diode D1；The other end of input end capacitor C6 is connected with the cathode of diode D2 simultaneously；The negative pole end of diode D2 plus earth, diode D1 is connected with the one end capacitor C11, the other end ground connection of capacitor C11；Resistance R4 is in parallel with the both ends capacitor C11；The cathode of diode D1 is connected with the non-inverting input terminal of operational amplifier U2B, and the inverting input terminal 6 of operational amplifier U2B connects the intermediate ends of adjustable potentiometer W1；The output end 7 of the operational amplifier is connected with switch motion circuit；One end of adjustable potentiometer W1 is connected by resistance R6 with power supply, other end ground connection.This circuit uses laminated structure, and structure is simple, compact, is easily installed.
Description
Technical field
The utility model relates to radars to incude field, and in particular to a kind of radar automatic sensing switch.
Background technique
Inductive switch is that perhaps the device of stimulation and reflection can convert measured physical quantity or chemical quantity reception signal
At the device of another corresponding output, it is widely used in automation control, security device etc..
Due to infrared induction, its theory structure is simple in the prior art, at low cost, in intelligent-induction household electrical appliances and security device
Middle extensive application, but since its principle is to realize its automatic control function by incuding the extraneous infrared heat distributed,
Therefore it is influenced vulnerable to external environment, it is difficult to it works in adverse circumstances outdoors, and microwave radar inductor is mainly shaken by microwave
Device and microwave antenna composition are swung, the microwave issued by transmitting antenna will be absorbed or reflected when encountering testee, and send out power
Changing is received by testee or by the reflected microwave of measured object using receiving antenna, and is converted into telecommunications
Number, then handled by measuring circuit, it is achieved that microwave detects, therefore inducing function is not by the interference of any environment temperature, reaction speed
Degree is fast, and sensitivity is higher, and safety stability is high, not by temperature, air-flow, and the influence of dust and smog etc..
In actual application, the control switch that automatically-controlled door is opened generallys use infrared inductor, and when use is pacified
Mounted in the top of door, if having the rolling animal for distributing infrared heat below infrared inductor when automatically-controlled door can open.So
And this control mode often will cause the erroneous judgement of automatically-controlled door, for example, when thering is passerby to pass through and causing its triggering, automatically
Door can automatically turn on.Therefore, this inductor can not correctly recognize whether someone enters or gos out.
Meanwhile that there are overall structures is big for microwave radar inductor on the market, is not easy to be installed to other equipment medium
Disadvantage.
Summary of the invention
1, technical problem to be solved:
For above-mentioned problem of the prior art, the utility model provides a kind of radar automatic sensing switch, and the radar is automatic
Induction switch structure is simple, is easily installed in other equipment.
2, technical solution:
A kind of radar automatic sensing switch, including radar mode inductor, signal increasing circuitry, signal demodulator circuit are opened
Close actuating circuit, power circuit.
The output end of the radar mode inductor is connected with the input terminal of signal increasing circuitry, the output of signal increasing circuitry
End is connected with the input terminal of signal demodulator circuit, and signal demodulator circuit output end is connected with switch motion circuit, switch motion electricity
The output end on road is connected with electromagnetic relay.
The signal demodulator circuit includes input end capacitor C6, one end of the input end capacitor C6 and signal increasing circuitry
Output end be connected；The other end of the input end capacitor C6 is connected with the anode of diode D1；The input end capacitor C6's
The other end is connected with the cathode of diode D2 simultaneously；Diode D2 plus earth, the negative pole end of diode D1 and the one end capacitor C11
It is connected, the other end ground connection of capacitor C11；Resistance R4 is in parallel with the both ends capacitor C11；The cathode and operational amplifier of diode D1
The non-inverting input terminal of U2B is connected, and the inverting input terminal 6 of operational amplifier U2B connects the intermediate ends of adjustable potentiometer W1；The operation
The output end 7 of amplifier is connected with switch motion circuit；One end of the adjustable potentiometer W1 is connected by resistance R6 with power supply,
Other end ground connection.
The switch motion circuit includes the triode Q4 of emitter-base bandgap grading output, and the base stage and signal demodulator circuit of triode Q4 is defeated
Outlet is connected；The emitter of triode Q4 is connected with the positive input of operational amplifier U2A, the operational amplifier U2A's
Reverse input end is connected by resistance R18 with power supply；The output end of the operational amplifier U2A passes through resistance R15 and control three
The base stage of pole pipe Q3 is connected；The positive power source terminal of the operational amplifier U2A is connected with power supply；The operational amplifier U2A's is negative
Power end ground connection.
The control triode Q3 is connected with electromagnetic relay controls the actuation and disconnection of electromagnetic relay.
The power circuit is connected with radar mode inductor, signal increasing circuitry, switch motion circuit respectively.
Further, the radar automatic sensing switch includes three layers of pcb board and shell；The pcb board shape is identical, folds
Tandem mounting is at pcb board entirety；Be connected between adjacent two layers pcb board by the pin slots of specific position carry out signal transmission with
Power supply power supply；The shell is cylinder, and external screw thread is arranged in outer surface of outer cover；The shell is enclosed in pcb board overall peripheral.
Further, the radar mode inductor and signal increasing circuitry are fixed on first layer pcb board；The signal
Detecting circuit, the emitter output circuit of switch motion circuit and comparison circuit are fixed on second layer pcb board；The power circuit
It is fixed on third layer pcb board with the remaining part of the actuating circuit that opens the light and adjustable potentiometer W1.
Further, the radar mode inductor model IPM-165.
3, the utility model has the advantages that
(1) for the utility model circuit structure using laminated structure, structure is simple, and device is small and exquisite, compact, be convenient for
Installation.
(2) a kind of radar automatic sensing switch provided by the utility model is at low cost, low energy consumption.
(3) a kind of radar automatic sensing provided by the utility model switchs its induction sensitivity height, can monitor subtle
Human action.
Detailed description of the invention
Fig. 1 is the structural block diagram of the utility model；
Fig. 2 is signal increasing circuitry figure in the utility model；
Fig. 3 is the power unit circuit diagram in the utility model；
Fig. 4 is the circuit diagram of signal demodulator circuit and switch motion circuit in the utility model；
Fig. 5 is the external component schematic diagram of the utility model；
Fig. 6 is first layer board structure of circuit schematic diagrames in the utility model；
Fig. 7 is second layer board structure of circuit schematic diagrames in the utility model；
Fig. 8 is third layer board structure of circuit schematic diagrames in the utility model.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in Fig. 1, a kind of radar automatic sensing switch, radar mode inductor, signal increasing circuitry, signal demodulator
Circuit, switch motion circuit, power circuit.Wherein: the output end of radar mode inductor and the input terminal of signal increasing circuitry
It is connected, signal increasing circuitry output end is connected with the input terminal of signal demodulator circuit, and signal demodulator circuit output end and switch are dynamic
Make circuit to be connected, the output end of switch motion circuit is connected with electromagnetic relay.The on-off of shown electromagnetic relay control circuit.
As shown in Fig. 2, the signal increasing circuitry used for the signal increasing circuitry figure in the utility model, the present embodiment
Figure is made of two amplifying circuits.Wherein radar mode inductor passes through slot M1 input signal increasing circuitry, signal amplification
The output end of circuit is exported by the output end of operational amplifier U1A.
It as shown in Fig. 3, is the power unit circuit diagram of the utility model；As can be seen from the figure power circuit includes core
Piece MC34063 chip.The power circuit provides electric energy to radar mode inductor, signal increasing circuitry, switch motion circuit.
As shown in Fig. 4, in the utility model signal demodulator circuit and switch motion circuit circuit diagram.The signal increases
The output signal of width circuit is transmitted to one end of the input end capacitor C6 of detecting circuit；The other end and two of the input capacitance C6
The anode of pole pipe D1 is connected；The other end of the input capacitance C6 is connected with the cathode of diode D2 simultaneously；Diode D2 anode
Ground connection, the negative pole end of diode D1 are connected with the one end capacitor C11, the other end ground connection of capacitor C11；Resistance R4 and capacitor C11 two
End is in parallel；The cathode of diode D1 is connected with the non-inverting input terminal of operational amplifier U2B, the anti-phase input of operational amplifier U2B
End 6 connects the intermediate ends of potentiometer W1；The output end 7 of the operational amplifier is connected with switch motion circuit；The potentiometer
One end is connected by resistance R6 with power supply, other end ground connection.As shown, switch motion circuit include emitter output circuit with than
Compared with circuit.The switch motion circuit includes the triode Q4 of emitter-base bandgap grading output, and the base stage and signal demodulator circuit of triode Q4 is defeated
Outlet is connected；The emitter of triode Q4 is connected with the positive input of operational amplifier U2A, the operational amplifier U2A's
Reverse input end is connected by resistance R18 with power supply；The output end of the operational amplifier U2A passes through resistance R15 and control three
The base stage of pole pipe Q3 is connected；The positive power source terminal of the operational amplifier U2A is connected with power supply；The operational amplifier U2A's is negative
Power end ground connection.Triode is also connected with light emitting diode D6 in figure, and light emitting diode plays signal lamp, works as relay
Device is attracted, and light emitting diode D6 shines；When relay disconnects, light emitting diode D6 extinguishes.
Such as the external component schematic diagram that attached drawing 5 is the utility model.Wherein the figure on the left side is top view.Wherein square part
For radar mode inductor, circle is three layers of pcb board entirety A, and surrounding annulus is the external spiral structure of the shell of the utility model
F.Right figure is the shell external view of the utility model.Wherein E is antenna structure.
If attached drawing 6 is first layer board structure of circuit schematic diagrames in the utility model.First layer pcb board A-1 fixed radar mould
Formula inductor and signal increasing circuitry.Wherein 1,2 be respectively the contact pin structure connecting with second layer pcb board.
If attached drawing 7 is second layer board structure of circuit schematic diagrames in the utility model.Fixed signal detection on second layer pcb board
The emitter output circuit and comparison circuit of circuit, switch motion circuit.Wherein 1,2 is corresponding slotting to connect with first layer pcb board
Slot structure；3,4 be the contact pin structure connecting with third layer.
If attached drawing 8 is third layer board structure of circuit schematic diagrames in the utility model.It the power circuit and opens the light and acts electricity
The remaining part in road is fixed on third time pcb board.Wherein 3,4 be the inserting slot construction being correspondingly connected with second layer pcb board.From figure
In it can be seen that in third layer the adjustable potentiometer W1 in indicator light and detecting circuit is also distributed with.By adjusting adjustable potentiometer
W1, the sensitivity of adjustable inductive switch.Wherein E is antenna structure.
It is in cylindrical shape from attached drawing 5 to 8 as can be seen that the integral device of the utility model is compact-sized.In real work
Middle device diameters only have 30 millimeters.Outside is fixed in threaded shell, as shown in the right side Fig. 5, can be easily installed at other structures
In part, in automatically-controlled door, escalator, other occasions such as security alarm are widely used.
Although the present invention has been described by way of example and in terms of the preferred embodiments, they be not it is for the purpose of limiting the invention, it is any ripe
This those skilled in the art is practised, without departing from the spirit and scope of the invention, can make various changes or retouch from working as, therefore guarantor of the invention
Shield range should be subject to what claims hereof protection scope was defined.
Claims (4)
1. a kind of radar automatic sensing switch, including radar mode inductor, signal increasing circuitry, signal demodulator circuit, switch
Actuating circuit, power circuit；It is characterized by:
The output end of the radar mode inductor is connected with the input terminal of signal increasing circuitry, signal increasing circuitry output end with
The input terminal of signal demodulator circuit is connected, and signal demodulator circuit output end is connected with switch motion circuit, switch motion circuit
Output end is connected with electromagnetic relay；
The signal demodulator circuit includes input end capacitor C6, and one end of the input end capacitor C6 is defeated with signal increasing circuitry
Outlet is connected；The other end of the input end capacitor C6 is connected with the anode of diode D1；The input end capacitor C6's is another
End is connected with the cathode of diode D2 simultaneously；Diode D2 plus earth, negative pole end and the one end the capacitor C11 phase of diode D1
Even, the other end ground connection of capacitor C11；Resistance R4 is in parallel with the both ends capacitor C11；The cathode and operational amplifier U2B of diode D1
Non-inverting input terminal be connected, the inverting input terminal 6 of operational amplifier U2B connects the intermediate ends of adjustable potentiometer W1；The operation is put
The output end 7 of big device is connected with switch motion circuit；One end of the adjustable potentiometer is connected by resistance R6 with power supply, another
End ground connection；
The switch motion circuit includes the triode Q4 of emitter-base bandgap grading output, the base stage and signal demodulator circuit output end of triode Q4
It is connected；The emitter of triode Q4 is connected with the positive input of operational amplifier U2A, and the operational amplifier U2A's is reversed
Input terminal is connected by resistance R18 with power supply；The output end of the operational amplifier U2A passes through resistance R15 and control triode
The base stage of Q3 is connected；The positive power source terminal of the operational amplifier U2A is connected with power supply；The negative supply of the operational amplifier U2A
End ground connection；
The control triode Q3 is connected the on-off of control circuit with electromagnetic relay；
The power circuit is connected with radar mode inductor, signal increasing circuitry, switch motion circuit respectively.
2. a kind of radar automatic sensing switch according to claim 1, it is characterised in that: the radar automatic sensing switch
Including three layers of pcb board and shell；The pcb board shape is identical, stacked to be mounted to pcb board entirety；Between adjacent two layers pcb board
It is connected by the pin slots to match and carries out signal transmission and power supply power supply；The shell is cylinder, and outer surface of outer cover is set
Set external screw thread；The shell is enclosed in pcb board overall peripheral.
3. a kind of radar automatic sensing switch according to claim 1, it is characterised in that: the radar mode inductor with
Signal increasing circuitry is fixed on first layer pcb board；The signal demodulator circuit, switch motion circuit emitter output circuit with
Comparison circuit is fixed on second layer pcb board；The power circuit and the open the light remaining part of actuating circuit and adjustable potential
Device W1 is fixed on third layer pcb board.
4. a kind of radar automatic sensing switch according to claim 1, it is characterised in that: the radar mode incudes type
Number be IPM-165.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152764.2U CN208506238U (en) | 2018-07-20 | 2018-07-20 | A kind of radar automatic sensing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821152764.2U CN208506238U (en) | 2018-07-20 | 2018-07-20 | A kind of radar automatic sensing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208506238U true CN208506238U (en) | 2019-02-15 |
Family
ID=65289697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821152764.2U Expired - Fee Related CN208506238U (en) | 2018-07-20 | 2018-07-20 | A kind of radar automatic sensing switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208506238U (en) |
-
2018
- 2018-07-20 CN CN201821152764.2U patent/CN208506238U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104934264B (en) | A kind of method and system of protective relay | |
| CN205002923U (en) | Detection device and pipeline machine leaks | |
| CN205450606U (en) | Smart home system | |
| CN208506238U (en) | A kind of radar automatic sensing switch | |
| CN102413613A (en) | Electricity-saving control device method and method for human body detection based on capacitance effect | |
| CN105680256A (en) | Intelligent socket | |
| CN2554740Y (en) | Power carrier home controller | |
| CN208589996U (en) | Intelligent home control system based on radio network technique | |
| CN205264963U (en) | Intelligent switch socket | |
| CN205158175U (en) | Monitoring device with prevent condensation and nearly electric alarming function | |
| CN207184901U (en) | A kind of electronic switch of automatic time delay | |
| CN201233635Y (en) | Infrared detection device | |
| CN206075027U (en) | Based on the intelligent domestic system that Fructus Rubi is sent | |
| CN201413225Y (en) | Liquid seepage detection alarm system | |
| CN210326361U (en) | Internet of things socket | |
| WO2021212839A1 (en) | Electric leakage detection circuit, electric leakage protection circuit, and household appliance | |
| CN208948875U (en) | A kind of home furnishings intelligent water supply system | |
| CN208703812U (en) | Simulative surveillance device | |
| CN208006203U (en) | A kind of machine Control system cabinet with humidity alarm function | |
| CN201197134Y (en) | Household electrical appliance | |
| CN204948944U (en) | Vegetable greenhouse machine that leaks informaton and observe and control module thereof | |
| CN215528981U (en) | Reset circuit based on medium induction | |
| CN109210478A (en) | Simulative surveillance device | |
| CN206362950U (en) | A kind of new type reflection infrared sensor | |
| CN213026955U (en) | Ring main unit comprehensive measurement and control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |