CN109118741A - A kind of infrared curtain control system - Google Patents
A kind of infrared curtain control system Download PDFInfo
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- CN109118741A CN109118741A CN201811093871.7A CN201811093871A CN109118741A CN 109118741 A CN109118741 A CN 109118741A CN 201811093871 A CN201811093871 A CN 201811093871A CN 109118741 A CN109118741 A CN 109118741A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention belongs to smart home fields, more particularly to a kind of infrared curtain control system, the control system includes infrared curtain acquisition module, matched wireless receiving module and wireless transmitter module, the first control module being connect with infrared curtain acquisition module and wireless transmitter module, the second control module being connect with wireless receiving module, it further include the first power module powered to infrared curtain acquisition module, wireless transmitter module, the first control module, the second power supply module powered to wireless receiving module and the second control module.The advantages of invention, is: when by people by before pyroelectric infrared sensor, the analog signal variation of pyroelectric infrared sensor output is analyzed, obtain the direction that people passes through before pyroelectric infrared sensor, again wirelessly, recognition result is sent, realizes signal acquisition and wireless transmission.Above scheme realizes simple, discrimination height, low in energy consumption, while cost is very low, and application is extensive.
Description
Technical field
The present invention relates to smart home field, especially a kind of infrared curtain control system.
Background technique
Currently, there are many use for pyroelectric infrared sensor, the overwhelming majority is also limited to identify whether someone's
Detection exports whether electric signal changes to determine whether someone, then wirelessly by pyroelectric infrared sensor
It will test result to send, the function that this mode is realized is more single, and has been discontented with according to the development of present science and technology
Foot is only merely to have detected whether Man's Demands.
Another kind is able to achieve the identification to direction of motion feature to the use of pyroelectric infrared sensor, infrared by two
Pyroelectric sensor is placed side by side, and two pyroelectric infrared sensors have the sequencing of a triggering when people passes through, thus
Direction of motion feature is obtained, this mode is realized causes peripheral circuit complex using two pyroelectric sensors, cannot do
To the purpose of low-power consumption, cost is increased, while recognition accuracy is lower, use environment limitation is larger.
In consideration of it, at low cost, the high direction discernment of recognition accuracy is wirelessly red it is necessary to study a kind of implementation is simple
Outer curtain.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, for this purpose, the present invention provides a kind of infrared curtain control system.
To achieve the above object, the invention adopts the following technical scheme:
A kind of infrared curtain control system, including infrared curtain acquisition module, matched wireless receiving module and wireless hair
Module is penetrated, the first control module for connecting with infrared curtain acquisition module and wireless transmitter module is connect with wireless receiving module
The second control module, further include to infrared curtain acquisition module, wireless transmitter module, the first control module power first electricity
Source module, the second power supply module powered to wireless receiving module and the second control module.
In detail, the infrared curtain acquisition module includes double base pyroelectric infrared sensor P6, acquisition unit, is used for
Light converges to the Fresnel Lenses of double base pyroelectric infrared sensor P6, the double base pyroelectric infrared sensor P6 with adopt
Collect the input terminal connection of unit, the output end of the acquisition unit is connect with an input terminal of the first control module.
In detail, the acquisition unit includes acquisition chip U5, the model BISS0001 of acquisition chip U5, and double base is red
The power supply side D of outer pyroelectric sensor P6 successively passes through resistance R11, resistance R12 is connect with the first power supply, and by electricity
Solution capacitor C16 is connected to ground, and signal output end S is connect by resistance R17 with the 14th pin of acquisition chip U5, and by electricity
Resistance R20 is connected to ground, and capacitor C15, the ground terminal D and ground of double base pyroelectric infrared sensor P6 are connected in parallel on resistance R20
Connection；
The 1st pin of acquisition chip U5 and the 7th pin are connected to ground, and the 8th pin, the 9th pin, the 11st pin are with first
Power supply connection, the 10th pin are connected to ground by resistance R21；Output end OUT0 of 12nd pin as acquisition unit；
The right side upper and lower ends of output end OUT0 and slide rheostat R15, left slide rheostat winding terminal and resistance R14
Connection, left side slide plate end connect with capacitor C23, the other end of resistance R14 connect with the other end of capacitor C23 after also with acquire core
The 13rd pin of piece U5 connects, the tie point successively after resistance R16, resistance R13, electrolytic capacitor C19 with acquisition chip U5
The 16th pin connection, the both ends of resistance R13 are connected in parallel capacitor C18；The 15th pin of acquisition chip U5 by resistance R18 with
The connection of 16th pin, the 15th pin of acquisition chip U5 passes sequentially through resistance R19, electrolytic capacitor C17 is connected to ground, in resistance
The both ends R18 are parallel with capacitor C20, the capacitor C21 and capacitor C22 after parallel connection is connected between the 15th pin and ground.
In detail, the wireless transmitter module, the wireless transmitter module include wireless transmission chip U7, wireless transmission
The 1st pin of the model F113 of chip U7, wireless transmission chip U7 are divided into two-way, successively pass through inductance L2, capacitor C35 all the way
It is connected to ground, it is another time to be successively connected to ground by capacitor C34, inductance L3, capacitor C36, at inductance L3 and capacitor C36 tie point
It is connect with antenna；First power supply is connect with the drain D of metal-oxide-semiconductor Q1, is also connect by resistance R28 with grid G, inductance L2 and capacitor
C35 tie point is connect with the source S of metal-oxide-semiconductor Q1, is also connect with the 3rd pin of wireless transmission chip U7, the grid G of metal-oxide-semiconductor Q1
It is connect by resistance R27 with a control terminal switch of the first control module, the 3rd pin for receiving chip F113 passes through capacitor
C31 is connected to ground, and capacitor C32, capacitor C33 are also parallel on capacitor C31；The 4th pin and the 5th of wireless transmission chip U7
Crystal oscillator S3 is provided between pin, the 4th pin is connected to ground by capacitor C30, and the 5th pin is connected to ground by capacitor C29, the
6 pins are connect by resistance R26 with another control terminal ANTENNA of the first control module.
In detail, the first control module includes the first control chip U4, the model of the first control chip U4
STM32L011D3P6, first control chip U4 three I/O pins therein respectively correspond connect with output end OUT0, control terminal
Switch connection, control terminal ANTENNA connection.
In detail, the first control module further includes manual correction port P5, including three pins, and the 1st pin passes through
Resistance R10 is connect with the first power supply, and the 2nd pin connect with another I/O pin of the first control chip U4, the 3rd pin and
Ground connection, manual correction port P5 is by being manually shorted the 2nd pin and the 1st pin or the 3rd pin.
In detail, wireless receiving module includes wireless receiving chip U2, the model SYN480 of wireless receiving chip U2,
The 1st pin of wireless receiving chip U2 is connected to ground, the 2nd pin of antenna emitter ANT and wireless receiving chip U2, and is passed through
Inductance L1 is connected to ground, and the both ends shunt capacitance C1 of inductance L1, the 3rd pin is connect with second source, and by capacitor C2 with
Ground connection, capacitor C3 are connected in parallel on the both ends of capacitor C2, and the 4th pin is connected to ground by capacitor C4；5th pin is made by resistance R1
It for the output end OUT of wireless receiving module, and is also connected to ground by resistance R2, the 6th pin is connected to ground, the 7th pin warp
It crosses capacitor C5 to be connected to ground, the 8th pin is connected to ground by crystal oscillator S1.
In detail, second control module includes the second control chip U1, the model of the second control chip U1
An I/O pin of STM32F030F4P6, the second control chip U1 are connect with output end OUT.
In detail, first power module include the first power supply chip U6, the 1st pin of the first power supply chip U6 with
Ground connection, the 2nd pin is connect with the anode of 12V power supply, and is connected to ground by capacitor C24, and the 3rd pin is after diode D4
It is divided into two-way, is connect all the way with the 2nd pin of self-locking key K1, another way is connect with the source S of metal-oxide-semiconductor Q2, the first power supply core
Concatenated resistance R24 and resistance R23 is also connected between the 3rd pin and ground of piece U6, capacitor C25 is connected in parallel on resistance R24 and electricity
Hinder the both ends of R23, the tie point between resistance R24 and resistance R23 connect with the grid G of metal-oxide-semiconductor Q2, the drain D of metal-oxide-semiconductor Q2 and
The anode connection of 3V power supply, the cathode of 3V power supply are connected and are connected to ground with the cathode of 12V power supply, and the 3rd of self-locking key K1 is drawn
Foot is connect with the first power supply.
In detail, the second power supply module includes second source chip U3, the model of second source chip U3
The 3rd pin connection 5V power supply of AMS1117-3.3, second source chip U3 pass through capacitor C11 and ground as second source
Connection, capacitor C12 are connected in parallel on the both ends of capacitor C11, and the 1st pin is connected to ground, and the 2nd pin is as output end, as the first electricity
Source, and be connected to ground by capacitor C13, capacitor C14 is connected in parallel on the both ends of capacitor C13.
The present invention has the advantages that
(1) by people by before pyroelectric infrared sensor when, to the analog signal of pyroelectric infrared sensor output
Variation is analyzed, and the direction that people passes through before pyroelectric infrared sensor is obtained, then wirelessly, by recognition result
It sends, realizes signal acquisition and wireless transmission.Above scheme realizes simple, discrimination height, low in energy consumption, while cost is very
Low, application is extensive.
In (2) first power modules, the design of power supply and battery compatible circuit is primarily to adapt under varying environment
Powerup issue, two kinds of power supply modes of power supply and battery, adapts to more power supply environment, passes through isolation between two kinds of power supply modes
Guarantee the compatibility of two kinds of power supply modes.Metal-oxide-semiconductor Q2 is pmos pipe, which is by using pmos pipe and a pressure stabilizing two
Pole pipe, which does the two, is isolated.In detail, the first power module uses HT7136 voltage stabilizing chip, and 12V supply voltage is switched to
3.6V is to system power supply, and to make up pressure drop caused by zener diode, when 12V plant-grid connection, pmos pipe is disconnected, and separates battery.
When no 12V plant-grid connection, the conducting of pmos pipe separates voltage stabilizing chip HT7136 due to the unilateral conduction of diode.
(3) first control chip U4 and the second control chip U1, as clock source, are selected using internal adjustable oscillator
For 2.097MHz as dominant frequency, an external crystal-controlled oscillation can be saved by providing clock source using internal oscillator, on the one hand be reduced into
This, on the other hand reduces design power consumption, using the lower clock frequency of 2.097M, equally can effectively reduce system function
Consumption.And the low-power consumption class single-chip microcontroller of L series is selected, while 14 pin small packages can also effectively reduce power consumption.
The present invention only protects the device being made of the route between above-mentioned physical unit and each physical unit of connection
Or physical platform, without regard to software section therein.
Detailed description of the invention
Fig. 1 is a kind of infrared curtain control system schematic diagram of the present invention.
Fig. 2 is the circuit diagram of the first control chip in the present invention.
Fig. 3 is the peripheral circuit diagram of the first control chip in the present invention.
Fig. 4 is the circuit diagram of the second control chip in the present invention.
Fig. 5 is the peripheral circuit diagram of the second control chip in the present invention.
Fig. 6 is the circuit diagram of the first power module in the present invention.
Fig. 7 is the circuit diagram of second power supply module in the present invention.
Fig. 8 is the circuit diagram of infrared curtain acquisition module in the present invention.
Fig. 9 is the circuit diagram of wireless transmitter module in the present invention.
Figure 10 is the circuit diagram of wireless receiving module in the present invention.
The meaning of label symbol is as follows in figure:
1- the first control module the second control module of 2-
3- the first power module 4- second power supply module
5- infrared curtain acquisition module 6- wireless transmitter module 7- wireless receiving module
Specific embodiment
As shown in Figure 1, a kind of infrared curtain control system, including infrared curtain acquisition module 5, matched wireless receiving mould
Block 7 and wireless transmitter module 6, the first control module 1 and nothing being connect with infrared curtain acquisition module 5 and wireless transmitter module 6
The second control module 2 that line receiving module 7 connects further includes controlling to infrared curtain acquisition module 5, wireless transmitter module 6, first
The first power module 3 that molding block 1 is powered, the second power supply module 4 powered to wireless receiving module 7 and the second control module 2.
Wherein the first control module 1, the first power module 3, wireless transmitter module 6, the setting of infrared curtain acquisition module 5 exist
At curtain, the second control module 2, second power supply module 4, the setting of wireless receiving module 7 are at a distance in receiver.
Each module is described in detail below.
First control module 1
As shown in Fig. 2, the first control module 1 includes the first control chip U4, the model of the first control chip U4
STM32L011D3P6, first control chip U4 three I/O pins therein respectively correspond connect with output end OUT0, control terminal
Switch connection, control terminal ANTENNA connection.In this embodiment, three I/O ports respectively correspond the 8th pin, the 12nd draw respectively
Foot, the 7th pin.The 1st pin of first control chip U4 is connected to ground by resistance R8, and the 10th pin passes through resistance R9 and first
Power supply 3.3V connection, the 9th pin are connected to ground.
As shown in figure 3, the first control module 1 further includes manual correction circuit, the first debug circuit, the first reset circuit,
First display circuit.
Manual correction circuit includes manual correction port, and manual correction port P5 includes three pins, and the 1st pin passes through
Resistance R10 is connect with the first power supply, and the first power supply is 3.3V.2nd pin is connect with the 6th pin of the first control chip U4,
3rd pin is connected to ground, and manual correction port P5 is by being manually shorted the 2nd pin and the 1st pin or the 3rd pin.Manually
Port P5 is corrected to identify by the way of jumper cap for switching direction, manual correction, the 2nd pin is grounded under normal circumstances, when
When needing judging result opposite, the 2nd pin is connect with the 1st pin, and it is opposite as a result, side that adjustment jumper cap can be such that judgement makes
Just the use under actual environment.
First debug circuit includes debugging port P10, and debugging port P10 includes 4 pins, the 1st pin and the first electricity
Source 3.3V connection, the 2nd pin and the 3rd pin and the 13rd pin, the 14th pin of the first control chip U4 are correspondingly connected with, the
4 pins are connected to ground.Port is debugged as program burn writing port.
First reset circuit includes reseting port P9, and reseting port P9 includes 2 pins, and the first power supply 3.3V passes through resistance
R25 is connect with the 1st pin of reseting port P9, and connect with the 4th pin of the first control chip U4, reseting port P9 the
1 pin is connected to ground by capacitor C26, and is connect with the 2nd pin of reseting port P9.Reseting port P9 is as infrared curtain journey
The reset of sequence.
First display circuit are as follows: 3.3V power supply successively passes through resistance R22, light emitting diode D3 and the first control module 1
The connection of 5th pin.Light emitting diode D3 divides to be always on to be detected with pyroelectric sensor respectively with short bright two states, both states
To two kinds of directions respectively correspond.
3.3V power supply also passes through capacitor C6 connection, is parallel with capacitor C7 on capacitor C6.
In order to reduce power consumption, CPU most of time will be in sleep state, so just needing to wake up CPU, initialization timing
Device, timing 10ms interrupt primary, ADC acquisition of wake-up CPU progress simultaneously.
The first control chip U4 is by internal timer timing 10ms timing wake-up ADC acquisition in the present invention, remaining when
Between first control chip U4 be in sleep state, when the wireless portion of wireless transmitter module only needs to send wireless data again
Just to the low power dissipation design of wireless transmitter module power supply realization system.Because realizing the purpose of low-power consumption, L series is selected
Low-power consumption class single-chip microcontroller, while 14 pin small packages can effectively reduce power consumption.
Second control module 2
As illustrated in figures 4-5, second control module 2 includes the second control chip U1, the model of the second control chip U1
An I/O pin for STM32F030F4P6, the second control chip U1 is connect with output end OUT.In this embodiment, with output
Hold the 12nd pin that the pin of OUT connection is the second control chip U1.The 5th pin, the 16th pin of second control chip U1 is equal
It is connect with the first power supply 3.3V, the 15th pin is connected to ground.
Second control module 2 further include the second crystal oscillating circuit, serial port circuit, the second reset circuit, the second debug circuit,
Interface, the second display circuit is arranged in BOOT.
Second crystal oscillating circuit includes crystal oscillator S2, the 2nd pin and the 3rd that the both ends of crystal oscillator S2 control chip U1 with second respectively
Pin connection, the 2nd pin of the second control chip U1 also pass through capacitor C8 and are connected to ground, and the 3rd pin also passes through capacitor C9 and ground
Connection.
Serial port circuit includes serial interface P1, and serial interface P1 includes 4 pins, and the 1st pin is connect with second source 5V,
2nd pin is that signal output end TXI connect with the 17th pin of the second control chip U1, the 3rd pin for signal receiving end RXI and
The 18th pin connection of second control chip U1, the 4th pin ground connection.12nd pin receives 7 output end OUT's of wireless receiving module
Signal.
Second reset circuit reseting port P2, reseting port P2 include 2 pins, the first power supply 3.3V by resistance R3 with
The 1st pin of reseting port P2 connects, and connect with the 4th pin of the second control chip U1, the 1st pin of reseting port P2
It is connected to ground by capacitor C10, and is connect with the 2nd pin of reseting port P2.
Second debug circuit includes debugging port P3, and debugging port P3 includes 4 pins, the 1st pin and the first power supply
3.3V connection, the 2nd pin and the 3rd pin and the 19th pin, the 20th pin of the second control chip U1 are correspondingly connected with, and the 4th
Pin is connected to ground.Port is debugged as program burn writing port.
It includes setting port P4 that interface, which is arranged, in BOOT, and setting port P4 includes 2 pins, and the 1st pin passes through resistance R5
It connect, and is connect by resistance R4 with the 1st pin of the second control chip U1, the 2nd pin and ground with the first power supply 3.3V
Connection.
Second display circuit are as follows: 3.3V power supply successively passes through resistance R6, light emitting diode D1 and second and controls chip U1's
The connection of 13rd pin, 3.3V power supply are also successively connected to ground after resistance R7, light emitting diode D2.Light emitting diode D1 points normal
Bright and short bright two states, two kinds of directions that both states are detected with pyroelectric sensor respectively respectively correspond.Luminous two
Pole pipe D2 is as power supply indicator, and bright expression power supply is normal, and going out indicates abnormal.
3.3V power supply also passes through capacitor C27 connection, is parallel with capacitor C28 on capacitor C27.
First power module 3
As shown in fig. 6, first power module 3 includes the first power supply chip U6, the 1st pin of the first power supply chip U6
It is connected to ground, the 2nd pin is connect with the anode of 12V power supply, and is connected to ground by capacitor C24, and the 3rd pin passes through diode D4
After be divided into two-way, connect all the way with the 2nd pin of self-locking key K1, another way is connect with the source S of metal-oxide-semiconductor Q2, the first power supply
Be also connected with concatenated resistance R24 and resistance R23 between the 3rd pin and ground of chip U6, capacitor C25 be connected in parallel on resistance R24 and
The both ends of resistance R23, the tie point between resistance R24 and resistance R23 are connect with the grid G of metal-oxide-semiconductor Q2, the drain D of metal-oxide-semiconductor Q2
It being connect with the anode of 3V power supply, the cathode of 3V power supply is connected and is connected to ground with the cathode of 12V power supply, and the 3rd of self-locking key K1 the
Pin is connect with the first power supply.3V power supply is battery.Metal-oxide-semiconductor Q2 is pmos pipe, and the first power supply chip U6 is voltage stabilizing chip, model
For HT7136.The model AO3401 of metal-oxide-semiconductor Q2.
Second power supply module 4
As shown in fig. 7, the second power supply module 4 includes second source chip U3, the model of second source chip U3
The 3rd pin connection 5V power supply of AMS1117-3.3, second source chip U3 pass through capacitor C11 and ground as second source
Connection, capacitor C12 are connected in parallel on the both ends of capacitor C11, and the 1st pin is connected to ground, and the 2nd pin is as output end, as the first electricity
Source 3.3V, and be connected to ground by capacitor C13, capacitor C14 is connected in parallel on the both ends of capacitor C13.
Infrared curtain acquisition module 5
As shown in figure 8, the infrared curtain acquisition module 5 includes double base pyroelectric infrared sensor P6, acquisition unit, use
In the Fresnel Lenses that light is converged to double base pyroelectric infrared sensor P6, the double base pyroelectric infrared sensor P6 with
The input terminal of acquisition unit connects, and the output end of the acquisition unit is connect with an input terminal of the first control module 1.Double base
The model RE200B of pyroelectric infrared sensor.
The acquisition unit includes acquisition chip U5, the model BISS0001 of acquisition chip U5, double base infrared thermal release electric
The power supply side D of sensor P6 successively passes through resistance R11, resistance R12 and connect with the first power supply 3.3V, and by electrolysis electricity
Hold C16 to be connected to ground, signal output end S is connect by resistance R17 with the 14th pin of acquisition chip U5, and passes through resistance
R20 is connected to ground, and capacitor C15 is connected in parallel on resistance R20, the ground terminal D and ground of double base pyroelectric infrared sensor P6 is even
It connects.
The 1st pin of acquisition chip U5 and the 7th pin are connected to ground, and the 8th pin, the 9th pin, the 11st pin are with first
Power supply 3.3V connection, the 10th pin are connected to ground by resistance R21；Output end OUT0 of 12nd pin as acquisition unit.
The right side upper and lower ends of output end OUT0 and slide rheostat R15, left slide rheostat winding terminal and resistance R14
Connection, left side slide plate end connect with capacitor C23, the other end of resistance R14 connect with the other end of capacitor C23 after also with acquire core
The 13rd pin of piece U5 connects, the tie point successively after resistance R16, resistance R13, electrolytic capacitor C19 with acquisition chip U5
The 16th pin connection, the both ends of resistance R13 are connected in parallel capacitor C18；The 15th pin of acquisition chip U5 by resistance R18 with
The connection of 16th pin, the 15th pin of acquisition chip U5 passes sequentially through resistance R19, electrolytic capacitor C17 is connected to ground, in resistance
The both ends R18 are parallel with capacitor C20, the capacitor C21 and capacitor C22 after parallel connection is connected between the 15th pin and ground.
Acquisition chip U5 is the chip of signal amplification, the double base pyroelectric infrared sensor RE200B output electric signal warp
Chip BISS0001 amplification is handled, then ADC is constantly carried out by the first control chip U4 and acquires amplified voltage value.
The intensive arrangement of the concentric circles of Fresnel Lenses point-blank, makes the inswept double base of the uniform rule of infrared light
Pyroelectric infrared sensor.Light distribution mode is controlled by the extraction regions on Fresnel Lenses one by one, different phenanthrene
Nie Er lens lines has different convergence effects to light.Infrared light is converged into infrared thermal releasing according to human motion is stable
It is moved on electric transducer.
Double base pyroelectric infrared sensor exports electric signal when people passes through from two opposite directions, inside pyroelectricity
Polarizations occur for two reversed cascade photosensitive crystal, cause to export change in electric process in both direction on the contrary,
Output electric signal first becomes smaller in one direction of motion becomes larger again, and output electric signal first becomes larger in another direction of motion becomes smaller again,
To distinguish human motion direction character, direction discernment is realized.
Wireless transmitter module 6
As shown in figure 9, the wireless transmitter module 6, the wireless transmitter module 6 includes wireless transmission chip U7, wirelessly
The 1st pin of the model F113 of transmitting chip U7, wireless transmission chip U7 are divided into two-way, successively pass through inductance L2, electricity all the way
Hold C35 to be connected to ground, another secondary capacitor C34, inductance L3, capacitor C36 of successively passing through is connected to ground, and inductance L3 and capacitor C36 connect
Junction is connect with antenna；First power supply is connect with the drain D of metal-oxide-semiconductor Q1, is also connect by resistance R28 with grid G, inductance L2
It connect with capacitor C35 tie point with the source S of metal-oxide-semiconductor Q1, is also connect with the 3rd pin of wireless transmission chip U7, metal-oxide-semiconductor Q1's
Grid G is connect by resistance R27 with a control terminal switch of the first control module 1, receives the 3rd pin warp of chip F113
It crosses capacitor C31 to be connected to ground, and is also parallel with capacitor C32, capacitor C33 on capacitor C31；Draw the 4th of wireless transmission chip U7
Crystal oscillator S3 is provided between foot and the 5th pin, the 4th pin is connected to ground by capacitor C30, and the 5th pin is by capacitor C29 and ground
Connection, the 6th pin are connect by resistance R26 with another control terminal ANTENNA of the first control module 1.The first power supply with
Capacitor C37 and capacitor C38 are connected in parallel between ground.Metal-oxide-semiconductor Q1 is pmos pipe, model AO3401.
Wireless receiving module 7
As shown in Figure 10, wireless receiving module 7 includes wireless receiving chip U2, the model of wireless receiving chip U2
The 1st pin of SYN480, wireless receiving chip U2 are connected to ground, and antenna emitter ANT draws with the 2nd of wireless receiving chip U2
Foot, and be connected to ground by inductance L1, the both ends shunt capacitance C1 of inductance L1, the 3rd pin is connect with second source, and is passed through
Capacitor C2 is connected to ground, and capacitor C3 is connected in parallel on the both ends of capacitor C2, and the 4th pin is connected to ground by capacitor C4；5th pin passes through
Output end OUT of the resistance R1 as wireless receiving module 7, and be also connected to ground by resistance R2, the 6th pin is connected to ground,
7th pin is connected to ground by capacitor C5, and the 8th pin is connected to ground by crystal oscillator S1.
In this scenario, the AD collector that successive approximation 12 are all had in all STM32 chips, due to normal shape
Value under state when ADC collection value between 0x600~0xA00, when someone moves to the right on the left of infrared curtain, ADC acquisition
Value first becomes 0x000, is becoming 0xFFF, then return back to normal condition.When someone moves to the left on the right side of infrared curtain,
ADC collection value first becomes 0xFFF, then becomes 0x000, then returns back to normal condition.So as to judging the direction of motion, then by nothing
Wire module coding launches judging result, and according to judging result, selection sends ' 0 ' or ' 1 '.Wireless transmission chip U7 can
Transistor-Transistor Logic level to be modulated on 433MHz carrier wave automatically, the coding mode of wireless transmitter module 6 uses a kind of customized coding
Mode, using 20ms low level as the packet header of data packet, 2ms high level adds 8ms low level to represent ' 0 ', 8ms high level and adds 2ms
Low level represents harbour of ' 1 ', the 20ms low level as coding, is used as wireless receiving module 7 and identifies useful data.It is described wireless
Transistor-Transistor Logic level signal can be demodulated to for 433MHz wireless signal automatically by receiving chip U2, by the second control module 2 according to above-mentioned
Data packet format parses wirelessly transmitting data, realizes wireless transmission.
The above is only the preferred embodiments of the invention, are not intended to limit the invention creation, all in the present invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the invention within the spirit and principle of creation
Within the scope of shield.
Claims (10)
1. a kind of infrared curtain control system, which is characterized in that including infrared curtain acquisition module (5), matched wireless receiving
Module (7) and wireless transmitter module (6), the first control being connect with infrared curtain acquisition module (5) and wireless transmitter module (6)
Module (1), the second control module (2) connecting with wireless receiving module (7), further include to infrared curtain acquisition module (5), nothing
The first power module (3) that line transmitting module (6), the first control module (1) are powered, to wireless receiving module (7) and the second control
The second power supply module (4) of molding block (2) power supply.
2. a kind of infrared curtain control system according to claim 1, which is characterized in that the infrared curtain acquisition module
It (5) include double base pyroelectric infrared sensor P6, acquisition unit, for light to be converged to double base pyroelectric infrared sensor P6
Fresnel Lenses, the input terminal of the double base pyroelectric infrared sensor P6 and acquisition unit connects, the acquisition unit
Output end is connect with an input terminal of the first control module (1).
3. a kind of infrared curtain control system according to claim 2, which is characterized in that the acquisition unit includes acquisition
The power supply side D of the model BISS0001 of chip U5, acquisition chip U5, double base pyroelectric infrared sensor P6 successively pass through
Resistance R11, resistance R12 are connect with the first power supply, and are connected to ground by electrolytic capacitor C16, and signal output end S passes through resistance
R17 is connect with the 14th pin of acquisition chip U5, and is connected to ground by resistance R20, is connected in parallel to capacitor on resistance R20
The ground terminal D of C15, double base pyroelectric infrared sensor P6 are connected to ground；
The 1st pin of acquisition chip U5 and the 7th pin are connected to ground, the 8th pin, the 9th pin, the 11st pin with the first power supply
Connection, the 10th pin are connected to ground by resistance R21；Output end OUT0 of 12nd pin as acquisition unit；
The right side upper and lower ends of output end OUT0 and slide rheostat R15, left slide rheostat winding terminal and resistance R14 connect
It connects, left side slide plate end is connect with capacitor C23, and the other end of resistance R14 is gone back after connecting with the other end of capacitor C23 and acquisition chip
The 13rd pin of U5 connects, and the tie point is successively with acquisition chip U5's after resistance R16, resistance R13, electrolytic capacitor C19
The connection of 16th pin, the both ends of resistance R13 are connected in parallel capacitor C18；The 15th pin of acquisition chip U5 passes through resistance R18 and the
The connection of 16 pins, the 15th pin of acquisition chip U5 passes sequentially through resistance R19, electrolytic capacitor C17 is connected to ground, in resistance R18
Both ends are parallel with capacitor C20, the capacitor C21 and capacitor C22 after parallel connection is connected between the 15th pin and ground.
4. a kind of infrared curtain control system according to claim 3, which is characterized in that the wireless transmitter module (6),
The wireless transmitter module (6) includes wireless transmission chip U7, the model F113 of wireless transmission chip U7, wireless transmission chip
The 1st pin of U7 is divided into two-way, is successively connected to ground all the way by inductance L2, capacitor C35, another time successively by capacitor C34,
Inductance L3, capacitor C36 are connected to ground, and are connect at inductance L3 and capacitor C36 tie point with antenna；First power supply is with metal-oxide-semiconductor Q1's
Drain D connection, also connect by resistance R28 with grid G, and inductance L2 and capacitor C35 tie point are connect with the source S of metal-oxide-semiconductor Q1,
It is also connect with the 3rd pin of wireless transmission chip U7, the grid G of metal-oxide-semiconductor Q1 is by resistance R27 and the first control module (1)
One control terminal switch connection, the 3rd pin for receiving chip F113 are connected to ground by capacitor C31, and on capacitor C31 also
It is parallel with capacitor C32, capacitor C33；It is provided with crystal oscillator S3 between the 4th pin and the 5th pin of wireless transmission chip U7, the 4th draws
Foot is connected to ground by capacitor C30, and the 5th pin is connected to ground by capacitor C29, and the 6th pin is by the control of resistance R26 and first
Another control terminal ANTENNA connection of module (1).
5. a kind of infrared curtain control system according to claim 4, which is characterized in that the first control module (1) includes
The model STM32L011D3P6, first control chip U4 three IO therein of first control chip U4, the first control chip U4
Pin respectively correspond connect with output end OUT0, control terminal switch connection, control terminal ANTENNA connection.
6. a kind of infrared curtain control system according to claim 5, which is characterized in that the first control module (1) is also wrapped
Include manual correction port P5, including three pins, the 1st pin is connect by resistance R10 with the first power supply, the 2nd pin and
Another I/O pin connection of first control chip U4, the 3rd pin be connected to ground, and manual correction port P5 by making the manually
2 pins and the 1st pin or the 3rd pin are shorted.
7. a kind of infrared curtain control system according to claim 1, which is characterized in that wireless receiving module (7) includes
The 1st pin of wireless receiving chip U2, the model SYN480 of wireless receiving chip U2, wireless receiving chip U2 are connected to ground,
The 2nd pin of antenna emitter ANT and wireless receiving chip U2, and be connected to ground by inductance L1, the both ends of inductance L1 are in parallel
Capacitor C1, the 3rd pin are connect with second source, and are connected to ground by capacitor C2, and capacitor C3 is connected in parallel on the both ends of capacitor C2,
4th pin is connected to ground by capacitor C4；5th pin passes through output end OUT of the resistance R1 as wireless receiving module (7), and
And be also connected to ground by resistance R2, the 6th pin is connected to ground, and the 7th pin is connected to ground by capacitor C5, and the 8th pin passes through
Crystal oscillator S1 is connected to ground.
8. a kind of infrared curtain control system according to claim 6, which is characterized in that second control module (2)
Model STM32F030F4P6, an IO of the second control chip U1 including the second control chip U1, the second control chip U1
Pin is connect with output end OUT.
9. a kind of infrared curtain control system according to claim 6, which is characterized in that first power module (3)
Including the first power supply chip U6, the 1st pin of the first power supply chip U6 is connected to ground, and the anode of the 2nd pin and 12V power supply is even
It connects, and be connected to ground by capacitor C24, the 3rd pin is divided into two-way after diode D4, all the way with the 2nd of self-locking key K1 the
Pin connection, another way are connect with the source S of metal-oxide-semiconductor Q2, are also connected with string between the 3rd pin and ground of the first power supply chip U6
The resistance R24 and resistance R23 of connection, capacitor C25 is connected in parallel on the both ends of resistance R24 and resistance R23, between resistance R24 and resistance R23
Tie point connect with the grid G of metal-oxide-semiconductor Q2, the drain D of metal-oxide-semiconductor Q2 connect with the anode of 3V power supply, the cathode of 3V power supply with
The cathode of 12V power supply is connected and is connected to ground, and the 3rd pin of self-locking key K1 is connect with the first power supply.
10. a kind of infrared curtain control system according to claim 1, which is characterized in that the second power supply module (4)
Including second source chip U3, the model AMS1117-3.3 of second source chip U3, the 3rd pin of second source chip U3
It connecting 5V power supply and is used as second source, and process capacitor C11 is connected to ground, capacitor C12 is connected in parallel on the both ends of capacitor C11, and the 1st
Pin is connected to ground, and the 2nd pin is as output end, is connected to ground as the first power supply, and by capacitor C13, capacitor C14 is simultaneously
It is associated in the both ends of capacitor C13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811093871.7A CN109118741A (en) | 2018-09-19 | 2018-09-19 | A kind of infrared curtain control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811093871.7A CN109118741A (en) | 2018-09-19 | 2018-09-19 | A kind of infrared curtain control system |
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| CN109118741A true CN109118741A (en) | 2019-01-01 |
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| CN201811093871.7A Pending CN109118741A (en) | 2018-09-19 | 2018-09-19 | A kind of infrared curtain control system |
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Cited By (1)
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| CN115063908A (en) * | 2022-05-23 | 2022-09-16 | 深圳市中讯智控有限公司 | Welcome smoking control Internet of things device for real-time statistics of pedestrian flow and smoking rate |
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