CN207321601U - A kind of infrared human body inductive control circuit - Google Patents
A kind of infrared human body inductive control circuit Download PDFInfo
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- CN207321601U CN207321601U CN201721435502.2U CN201721435502U CN207321601U CN 207321601 U CN207321601 U CN 207321601U CN 201721435502 U CN201721435502 U CN 201721435502U CN 207321601 U CN207321601 U CN 207321601U
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Abstract
The utility model belongs to electronic circuit technology field, more particularly, to a kind of infrared human body inductive control circuit.The utility model arranges in pairs or groups microcontroller, it can be achieved that whether intelligent control device works using pyroelectric infrared sensor.Compared with existing mechanical switch or simple control circuit, intelligent, release manually, energy-saving and emission-reduction etc. there is obvious advantage.
Description
Technical field
The utility model belongs to electronic circuit technology field, more particularly, to a kind of infrared human body inductive control circuit.
Background technology
Existing equipment control switch is usually traditional mechanical switch or simple sensor circuit, it is necessary to manually go
Control device switchs, intelligent low, it is necessary to manually participate in, if forgetting to close equipment when people leaves, can cause electric power resource
Waste.As the energy is more and more nervous, and the development of intellectual product, traditional mechanical switch can not meet people to electronics
The requirement of equipment.
Referenced patent document CN204649991U discloses a kind of household electrical appliances power control circuit with infrared induction,
It includes infrared inductor, and the output terminal of the infrared inductor is connected with processing module, drive circuit and household electrical appliance in turn；
The drive circuit includes optical coupled switch and silicon-controlled, and the processing module is by controlling optical coupled switch to control silicon-controlled conducting
Or shut-off, and then control the on or off of Domestic electric appliances power source.Referenced patent document CN204697349U discloses one kind of knowing clearly
Active human body infrared control circuit, the active human body infrared control circuit include IC power supply cathodes VDD, switch letter
Number input pin SW, pattern setting foot SET, output first passage CH1, output second channel CH2, output third channel CH3, IC are supplied
Electric power cathode VSS, high precision thermosensitive resistor, long range photo resistance, the temperature that LED light can actively sense human body are controlled
System light modulation, is adapted to domestic lighting active inductive control occasion, makes LED daylight lamp more humane, more save electric energy.
The control for the Household appliances that technical solution disclosed in above-referenced patent document is directed to, above-mentioned control circuit can
Realize human body induction control, LED light, without illumination during daytime, but infrared control circuit senses that people exists, and can also turn on light, make
Into the waste of resource.The demand that above-mentioned control circuit does not account for people's day and night is different, so as to limit above-mentioned
Control circuit uses field.
Utility model content
Part in view of the shortcomings of the prior art, it is special the utility model proposes a kind of infrared human body inductive control circuit
Be not to be related to a kind of pyroelectric infrared human body inductive control circuit, devise it is a can intelligently without manually participate in control device
Module control circuit.
The utility model adopts the following technical solution：
A kind of infrared human body inductive control circuit, it includes three terminal regulator, microcontroller, pyroelectric infrared sensor, light
Quick triode, the first capacitance, the second capacitance, the 3rd capacitance, the 5th capacitance, the 6th capacitance, second resistance, 3rd resistor, the 4th
Resistance, the 5th resistance, the 6th resistance and the 7th resistance, concatenate between the first pin and second pin of the three terminal regulator
Six capacitances, concatenate the first capacitance, the first pin ground connection of three terminal regulator between second pin and the 3rd pin, second pin connects
Voltage input end；
4th pin of pyroelectric infrared sensor connects the 3rd pin of three terminal regulator, and the of pyroelectric infrared sensor
3rd resistor is concatenated between one pin and the 4th pin, the 5th resistance, the 6th pin are concatenated between second pin and the 4th pin
And the 4th concatenate the 6th resistance between pin, the first pin of pyroelectric infrared sensor is through the 3rd capacitance in parallel and the second electricity
Resistance ground connection, the 6th pin is through in parallel the 5th capacitance and the 7th resistance eutral grounding, the 4th resistance that second pin is concatenated and photosensitive
Triode is grounded, and the second capacitance one terminates the second pin of pyroelectric infrared sensor, other end ground connection, rpyroelectric infrared sensing
The 3rd pin ground connection of device；
First pin of microcontroller connects the 3rd pin of three terminal regulator, the 8th pin ground connection of microcontroller, the 6th pin
For output terminal, the 7th pin of microcontroller connects the 5th pin of pyroelectric infrared sensor.
The technical program further optimizes, and further includes the 4th capacitance, the 4th capacitance series are in three terminal regulator
Between second pin and the 3rd pin.
The technical program further optimizes, and the pyroelectric infrared sensor integrates pyroelectric sensor for double base.
The technical program further optimizes, and the microcontroller is C51 series monolithics.
The technical program further optimizes, and the phototriode is silicon phototriode.
The utility model arranges in pairs or groups microcontroller, it can be achieved that whether intelligent control device works using pyroelectric infrared sensor.
Compared with existing mechanical switch or simple control circuit, in intelligence, artificial, energy-saving and emission-reduction etc. are discharged with obvious
Advantage.The utility model is equipped with phototriode, it is possible to achieve daytime does not sense, at night the function of sensing.
Brief description of the drawings
Fig. 1 is the schematic diagram of infrared human body inductive control circuit.
Embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings is in the utility model exposure
A part for appearance, it can coordinate the associated description of specification to explain the running of embodiment original mainly to illustrate embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
A kind of as shown in fig.1, principle of infrared human body inductive control circuit of the utility model preferably embodiment
Figure,：It includes three terminal regulator Q1, microcontroller U1, pyroelectric infrared sensor U2, phototriode D1, the first capacitance C1, the
Two capacitance C2, the 3rd capacitance C3, the 4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6, second resistance R2,3rd resistor R3,
Four resistance R4, the 5th resistance R5, the 6th resistance R6 and the 7th resistance R7, the first pin of the three terminal regulator Q1 and second draw
The 6th capacitance C6 is concatenated between foot, the first capacitance C1 is concatenated between second pin and the 3rd pin, the 4th capacitance C4 is serially connected in three
Hold between second pin and the 3rd pin of voltage-stablizer Q1, the first pin ground connection of three terminal regulator Q1, second pin connects voltage
Input terminal；
The 4th pin of pyroelectric infrared sensor U2 connects the 3rd pin of three terminal regulator Q1, pyroelectric infrared sensor
3rd resistor R3 is concatenated between the first pin and the 4th pin of U2, the 5th resistance is concatenated between second pin and the 4th pin
R5, concatenates the 6th resistance R6, the first pin of pyroelectric infrared sensor U2 is through parallel connection between the 6th pin and the 4th pin
3rd capacitance C3 and second resistance R2 ground connection, the 6th pin are grounded through the 5th capacitance C5 and the 7th resistance R7 in parallel, and second draws
The 4th resistance R4 and phototriode D1 that foot is concatenated ground connection, the of the second capacitance C2 mono- termination pyroelectric infrared sensors U2
Two pins, other end ground connection, the 3rd pin ground connection of pyroelectric infrared sensor U2；
The first pin of microcontroller U1 connects the 3rd pin of three terminal regulator Q1, and the 8th pin of microcontroller U1 is grounded, the
Six pins are output terminal, and the 7th pin of microcontroller U1 connects the 5th pin of pyroelectric infrared sensor U2.
The second pin of three terminal regulator Q1 is VIN ends, and the first pin is GND ends, and the 3rd pin is output terminal, microcontroller
The 6th pin of U1 is OUTPUT ends.
The VIN ends of the embodiment are the cathode of input direct voltage, and GND is anode, and VIN ends input voltage range is
5Vdc-36Vdc.Input voltage is by exporting 3.3V, the 4th capacitance C4 and the first capacitance C1 as filter after three terminal regulator Q1 voltage stabilizings
Ripple capacitance, plays the filter action after voltage stabilizing, and the 3.3V of three terminal regulator Q1 outputs will power to the circuit of rear end to be used.
The function of each pin of pyroelectric infrared sensor U2 is respectively：
1.SEN foot sensitivity input terminals
2.CDS foot function ends
3.GND foot power supplys
4.VDD foot feeder ears
5.OUT foot signal output parts
The delay of 6.TIME feet sets end
3rd resistor R3, second resistance R2, the 3rd capacitance C3 form a bleeder circuit, are connected to pyroelectric infrared sensor
The first pin of U2, by setting the resistance value of different 3rd resistor R3, second resistance R2, the of pyroelectric infrared sensor U2
One pin can detect different magnitudes of voltage, and according to different magnitudes of voltage, pyroelectric infrared sensor U2 has different sensitive
Degree.
5th resistance R5, the 4th resistance R4, the second capacitance C2, phototriode D1 form a bleeder circuit, are connected to heat
Release the second pin of electric infrared sensor U2.Phototriode D has different electric currents according to different environment illumination intensities, because
This, under different environment illumination intensities, the second pin of pyroelectric infrared sensor U2 can detect different voltage, work as voltage
More than inner setting value when, pyroelectric infrared sensor U2 normal work, when voltage be less than inner setting value when, pyroelectricity
Infrared sensor U2 stops sensing.It is thereby achieved that daytime does not sense, the function of sensing at night.Such as without the function, only need
Phototriode D1 short circuits.
6th resistance R6, the 7th resistance R7, the 5th capacitance C5 form a bleeder circuit, pyroelectric infrared sensor U2's
6th pin, by setting the resistance value of the 6th different resistance R6, the 7th resistance R7, the 6th of pyroelectric infrared sensor U2 draws
Foot can detect different magnitudes of voltage, and according to different magnitudes of voltage, pyroelectric infrared sensor U2 can set delay time automatically,
16 groups of output delay times can be set altogether.
When the magnitude of voltage that the second pin of pyroelectric infrared sensor U2 detects is more than the value of inner setting, pyroelectricity
Infrared sensor U2 is worked normally, and inductive head automatic identification, when recognizing someone, the 5th of pyroelectric infrared sensor U2 draws
Foot is OUT terminal, can continue output high level.After inductive probe, which recognizes people, to be left, according to pyroelectric infrared sensor U2's
The delay time that 6th pin is set, the 5th pin to pyroelectric infrared sensor U2 after delay time export low electricity
It is flat.
The first pin of microcontroller U1 is connected to the 3rd pin of three terminal regulator Q1, and operating voltage is provided for microcontroller U1,
The 7th pin of microcontroller U1 is an I/O port, the 5th pin of pyroelectric infrared sensor U2 is connected to, as someone
Wait, the 7th pin of microcontroller U1 is able to detect that the high level of the 5th pin output of pyroelectric infrared sensor U2, passes through
Microcontroller U1 is programmed, as long as the 7th pin of microcontroller U1 detects high level, then the 6th pin output of microcontroller U1 is high
Level, and just turn off after the regular hour that is delayed.The 6th pin of microcontroller U1 goes control other equipment, and such as LED light can be real
Now when someone when, equipment normal work, when people leaves, equipment can delay working turn off after a certain period of time, and
There is no concern that forget powered-down when people leaves and cause equipment working always, it can be achieved that intelligent control, saves the energy.
It should be noted that the pyroelectric infrared sensor described in the embodiment integrates pyroelectric sensor for double base.
The embodiment technical solution further optimizes, and the microcontroller is C51 series monolithics.
The embodiment technical solution further optimizes, and the phototriode is silicon phototriode.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, in the spirit and scope for not departing from the utility model that the appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (5)
- A kind of 1. infrared human body inductive control circuit, it is characterised in that：It includes three terminal regulator, microcontroller, rpyroelectric infrared Sensor, phototriode, the first capacitance, the second capacitance, the 3rd capacitance, the 5th capacitance, the 6th capacitance, second resistance, the 3rd Resistance, the 4th resistance, the 5th resistance, the 6th resistance and the 7th resistance, the first pin and second pin of the three terminal regulator Between concatenate the 6th capacitance, concatenate the first capacitance between second pin and the 3rd pin, the first pin ground connection of three terminal regulator, Second pin connects voltage input end；4th pin of pyroelectric infrared sensor connects the 3rd pin of three terminal regulator, and the first of pyroelectric infrared sensor draws 3rd resistor is concatenated between foot and the 4th pin, the 5th resistance, the 6th pin and the are concatenated between second pin and the 4th pin The 6th resistance is concatenated between four pins, the first pin of pyroelectric infrared sensor connects through the 3rd capacitance and second resistance in parallel Ground, the 6th pin is through the 5th capacitance and the 7th resistance eutral grounding in parallel, the 4th resistance and photosensitive three pole that second pin is concatenated Pipe is grounded, and the second capacitance one terminates the second pin of pyroelectric infrared sensor, and the other end is grounded, pyroelectric infrared sensor 3rd pin is grounded；First pin of microcontroller connects the 3rd pin of three terminal regulator, and the 8th pin ground connection of microcontroller, the 6th pin is defeated Outlet, the 7th pin of microcontroller connect the 5th pin of pyroelectric infrared sensor.
- 2. infrared human body inductive control circuit as claimed in claim 1, it is characterised in that：Further include the 4th capacitance, described Four capacitance series are between the second pin of three terminal regulator and the 3rd pin.
- 3. infrared human body inductive control circuit as claimed in claim 1, it is characterised in that：The pyroelectric infrared sensor is Double base integrates pyroelectric sensor.
- 4. infrared human body inductive control circuit as claimed in claim 1, it is characterised in that：The microcontroller is single for C51 series Piece machine.
- 5. infrared human body inductive control circuit as claimed in claim 1, it is characterised in that：The phototriode is photosensitive for silicon Triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435502.2U CN207321601U (en) | 2017-11-01 | 2017-11-01 | A kind of infrared human body inductive control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721435502.2U CN207321601U (en) | 2017-11-01 | 2017-11-01 | A kind of infrared human body inductive control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207321601U true CN207321601U (en) | 2018-05-04 |
Family
ID=62379542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721435502.2U Active CN207321601U (en) | 2017-11-01 | 2017-11-01 | A kind of infrared human body inductive control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207321601U (en) |
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2017
- 2017-11-01 CN CN201721435502.2U patent/CN207321601U/en active Active
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