CN206489104U - A kind of portable gas detector for connecting smart machine - Google Patents
A kind of portable gas detector for connecting smart machine Download PDFInfo
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- CN206489104U CN206489104U CN201720127861.5U CN201720127861U CN206489104U CN 206489104 U CN206489104 U CN 206489104U CN 201720127861 U CN201720127861 U CN 201720127861U CN 206489104 U CN206489104 U CN 206489104U
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Abstract
The utility model discloses a kind of portable gas detector for connecting smart machine, including power circuit, key-press circuit for switch, Detection Circuit, sound light alarming circuit, main control chip circuit, wireless upload circuit and liquid crystal display circuit；Power circuit, key-press circuit for switch, Detection Circuit, sound light alarming circuit, wireless upload circuit and liquid crystal display circuit are connected with main control chip circuit respectively；Power circuit includes 4.2V power circuits and 3.3V power circuits；4.2V power circuits are used to power to sound light alarming circuit, and 3.3V power circuits are used to power to Detection Circuit, wireless upload circuit and liquid crystal display circuit.
Description
Technical field
The utility model is related to combustible gas detecting technical field, specifically a kind of to connect the portable of smart machine
Formula gas detector.
Background technology
Smart machine rapidly becomes main flow with its powerful function and good operability, changes the daily life of people
It is living.With this trend development, all accessible smart machine of increasing equipment, forms an intellectualizing system at one's side.
Equipment is integrated into intellectualizing system and has more multi-functional itself, is provided with more preferable Consumer's Experience.
Utility model content
The utility model is in order that portable gas detector access intellectualizing system can connect smart mobile phone there is provided one kind
Portable gas detector.
The technical scheme in the invention for solving the technical problem is：It is a kind of to connect the portable of smart machine
Gas detector, it is characterized in that, including power circuit, key-press circuit for switch, Detection Circuit, sound light alarming circuit, master control
Chip circuit, it is wireless to upload circuit and liquid crystal display circuit；Power circuit, key-press circuit for switch, Detection Circuit, acousto-optic report
Alert circuit, wireless upload circuit and liquid crystal display circuit are connected with main control chip circuit respectively；Power circuit includes 4.2V power supplys
Circuit and 3.3V power circuits；4.2V power circuits are used to power to sound light alarming circuit, and 3.3V power circuits are used for gas
Detection circuit, wireless upload circuit and liquid crystal display circuit are powered.
Further, the 4.2V power circuits include LM2735XMF chips, inductance L1, electric capacity C4, diode D3, electricity
Hold C5, electric capacity C6, electric capacity C7, resistance R30, resistance R31；No. 4 pins and No. 5 pins of LM2735XMF chips respectively with inductance
L1 one end is connected with electric capacity C4 one end, the other end and diode of No. 1 pin of LM2735XMF chips respectively with inductance L1
D3 positive pole is connected, diode D3 negative pole one end respectively with electric capacity C5, resistance R30 one end, electric capacity C6 one end, electric capacity
C7 one end is connected and exports 4.2V voltages, and electric capacity the C6 other end, the electric capacity C7 other end are connected and be grounded；Resistance R30's
No. 3 pins of other end one end respectively with resistance R31, the electric capacity C5 other end and LM2735XMF chips are connected；Electric capacity C4's
The other end is grounded；Resistance R31 other end ground connection；
The 3.3V power circuits include 1117 chips, electric capacity C8, electric capacity C9, electric capacity C10, voltage-regulator diode WY1, transient state
Suppress diode TVS1；No. 3 pins of 1117 chip are connected with electric capacity C8 one end and connect 4.2V voltages, and electric capacity C8's is another
One end respectively with No. 1 pin of 1117 chips, electric capacity C9 one end, electric capacity C10 one end, voltage-regulator diode WY1 positive pole, wink
One end that state suppresses diode TVS1 is connected and is grounded；The other end, the electric capacity of No. 2 pins of 1117 chips respectively with electric capacity C9
The C10 other end, voltage-regulator diode WY1 negative pole, the Transient Suppression Diode TVS1 other end is connected and exports 3.3V voltages.
Further, main control chip circuit include single-chip microcomputer STM32F103 chips, resistance R12, resistance R13, electric capacity C11,
Electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, electric capacity C16, electric capacity C17, electric capacity C18, crystal oscillator JZ1, contact pin J1；
No. 60 pins of STM32F103 chips are connected with resistance R12 one end, resistance R12 other end ground connection, STM32F103 chips
No. 63 pins be connected and be grounded with electric capacity C11 one end, the electric capacity C11 other end and No. 64 pins of STM32F103 chips
And 3.3V voltages are connect, No. 48 pins of STM32F103 chips are connected with electric capacity C15 one end and connect 3.3V voltages, electric capacity C15's
The other end is grounded；No. 31 pins of STM32F103 chips are connected and are grounded with electric capacity C18 one end, the electric capacity C18 other end with
No. 32 pins of STM32F103 chips simultaneously connect 3.3V voltages, one end phase of No. 19 pins and electric capacity C17 of STM32F103 chips
Connect and connect 3.3V voltages, electric capacity C17 other end ground connection, No. 13 pins of STM32F103 chips are connected with electric capacity C16 one end
And connect 3.3V voltages, electric capacity C16 other end ground connection；No. 5 pins of STM32F103 chips respectively with electric capacity C13 one end and
Crystal oscillator JZ1 one end is connected, No. 6 pins of STM32F103 chips one end respectively with electric capacity C14 and the crystal oscillator JZ1 other end
It is connected, the electric capacity C14 other end is connected and is grounded with the electric capacity C13 other end；A resistance R13 termination 3.3V voltages, resistance
The R13 other end is connected with electric capacity C12 one end and connects No. 7 pins of STM32F103 chips, and the electric capacity C12 other end is grounded；
Contact pin J1 No. 1 pin ground connection, No. 2 pins connect No. 49 pins of STM32F103 chips, and No. 3 pins connect STM32F103 chips
No. 46 pins, No. 4 pins connect 3.3V voltages.
Further, Detection Circuit includes resistance R8 and gas sensor CGQ；Resistance R8 one end and gas sensing
Device CGQ No. 2 pins are connected, and the resistance R8 other end is connected with No. 20 pins of STM32F103 chips, gas sensor CGQ
No. 3 pins be connected with No. 4 pins and connect 3.3V voltages, gas sensor CGQ No. 1 pin ground connection.
Further, key-press circuit for switch includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, electricity
Hinder R7, metal-oxide-semiconductor Q1, triode Q2, tunnel diode D1, tunnel diode D2, electric capacity C1, electric capacity C2, electric capacity C3, power switch
S1, zeroing switches S2, keying air-breathing switch pump S3；Metal-oxide-semiconductor Q1 S poles are connected with resistance R1 one end and connect 3.7V voltages, electricity
The resistance R1 other end is connected with metal-oxide-semiconductor Q1 G poles and triode Q2 colelctor electrode respectively, metal-oxide-semiconductor Q1 D poles and 4.2V power supplys electricity
Electric capacity C4 one end is connected in road；One end, the resistance R3 one end of triode Q2 base stage respectively with resistance R2 are connected, resistance R3
The other end be connected and be grounded with triode Q2 emitter stage, the resistance R2 other end respectively with tunnel diode D1 negative pole and
Tunnel diode D2 negative pole is connected, and tunnel diode D1 positive pole connects No. 59 pins of single-chip microcomputer STM32F103 chips；Tunnel
Diode D2 positive pole is connected with resistance R4 one end and switch S1 one end respectively, S1 another termination 3.3V voltages, resistance
One end, the resistance R5 one end of the R4 other end respectively with electric capacity C1 are connected and connect No. 61 pins of STM32F103 chips, electric capacity
The C1 other end, resistance R5 other end ground connection；S2 one end, a S3 termination 3.3V voltages, the S2 other end respectively with electricity
One end, the resistance R6 one end for holding C2 are connected and connect No. 57 pins of STM32F103 chips, electric capacity the C2 other end, resistance R6
Other end ground connection, one end, the resistance R7 one end of the S3 other end respectively with electric capacity C3 are connected and connect STM32F103 chips
No. 58 pins, the electric capacity C3 other end, resistance R7 other end ground connection.
Further, sound light alarming circuit includes resistance R9, resistance R10, resistance R11, triode Q3, buzzer LS1, is
Run indicator of uniting LED1, alarm lamp LED2；No. 22 pins of a resistance R9 termination STM32F103 chips, resistance R9
The other end be connected with system operation indicator lamp LED1 positive pole, system operation indicator lamp LED1 negative pole ground connection, resistance R10's
No. 23 pins of one termination STM32F103 chips, the resistance R10 other end is connected with alarm lamp LED2 positive pole, alarmed
Indicator lamp LED2 negative pole ground connection；No. 34 pins of a resistance R11 termination STM32F103 chips, resistance R11 another termination
Triode Q3 base stage, triode Q3 colelctor electrode connects buzzer LS1 control end, triode Q3 grounded emitter, buzzing
Device LS1 power supply termination 4.2V voltages.
Further, the wireless circuit that uploads includes Bluetooth circuit, and Bluetooth circuit includes RB_LSD chips, RB_LSD chips
No. 9 pins are connected with No. 24 pins of STM32F103 chips, No. 10 pins of RB_LSD chips and the 25 of STM32F103 chips
Number pin is connected, and No. 31 pins of RB_LSD chips are connected with No. 33 pins of STM32F103 chips, No. 30 of RB_LSD chips
Pin is connected with No. 30 pins of STM32F103 chips, and No. 29 pins of RB_LSD chips draw with No. 29 of STM32F103 chips
Pin is connected, and No. 28 pins of RB_LSD chips are connected with No. 28 pins of STM32F103 chips, No. 27 pins of RB_LSD chips
It is connected with No. 27 pins of STM32F103 chips, No. 22 pins of RB_LSD chips and No. 26 pin phases of STM32F103 chips
Even, No. 19 pins of RB_LSD chips are connected with No. 41 pins of STM32F103 chips, No. 17 pins of RB_LSD chips and
No. 42 pins of STM32F103 chips are connected, No. 16 pins of RB_LSD chips and No. 43 pin phases of STM32F103 chips
Even.
Further, liquid crystal display circuit include OLED screen, No. 2 pins of OLED screen with No. 39 of STM32F103 chips
Pin be connected, No. 3 pins of OLED screen are connected with No. 38 pins of STM32F103 chips, No. 4 pins of OLED screen and
No. 37 pins of STM32F103 chips are connected, and No. 5 pins of OLED screen are connected with No. 36 pins of STM32F103 chips.
The beneficial effects of the utility model are：
The utility model can realize that portable gas detector is integrated into intellectualizing system, and intelligent system can be utilized well
Numerous functions of system, make the work of line attendant more facilitate.
The utility model applies a Bluetooth circuit, and main control chip is connected by Bluetooth circuit with smart machine, smart machine
The data that combustible gas probe is sent can be received, the resource of smart machine is made full use of.
Main control chip is handled the signal that gas sensor is exported, and passes through numerical monitor, acousto-optic on smart machine
Etc. form display target gas concentration value.Other main control chip is communicated with bluetooth module, and control module is by target gas levels
Value, equipment running status are sent to the smart machine by bluetooth connection.
Brief description of the drawings
Fig. 1 is circuit structure connection figure of the present utility model；
Fig. 2 is the utility model 4.2V power circuit diagrams；
Fig. 3 is the utility model 3.3V power circuit diagrams；
Fig. 4 is the utility model main control chip circuit diagram；
Fig. 5 is the utility model Detection Circuit figure；
Fig. 6 is the utility model key-press circuit for switch figure；
Fig. 7 is the utility model sound light alarming circuit figure；
Fig. 8 is the utility model Bluetooth circuit figure；
Fig. 9 is the utility model liquid crystal display circuit figure.
Embodiment
As shown in figure 1, a kind of portable gas detector for connecting smart machine, including power circuit, switch key
Circuit, Detection Circuit, sound light alarming circuit, main control chip circuit is wireless to upload circuit and liquid crystal display circuit；Power supply electricity
Road, key-press circuit for switch, Detection Circuit, sound light alarming circuit, it is wireless upload circuit and liquid crystal display circuit respectively with master
Chip circuit is controlled to be connected；Power circuit includes 4.2V power circuits and 3.3V power circuits；4.2V power circuits are used for acousto-optic
Warning circuit is powered, and 3.3V power circuits are used to power to Detection Circuit, Bluetooth circuit and liquid crystal display circuit.
As shown in Fig. 2 4.2V power circuits include LM2735XMF chips, inductance L1, electric capacity C4, diode D3, electric capacity
C5, electric capacity C6, electric capacity C7, resistance R30, resistance R31；No. 4 pins and No. 5 pins of LM2735XMF chips respectively with inductance L1
One end be connected with electric capacity C4 one end, the other end and diode D3 of No. 1 pin of LM2735XMF chips respectively with inductance L1
Positive pole be connected, diode D3 negative pole one end respectively with electric capacity C5, resistance R30 one end, electric capacity C6 one end, electric capacity C7
One end be connected and export 4.2V voltages, electric capacity the C6 other end, the electric capacity C7 other end are connected and are grounded；Resistance R30's is another
No. 3 pins of one end one end respectively with resistance R31, the electric capacity C5 other end and LM2735XMF chips are connected；Electric capacity C4's is another
One end is grounded；Resistance R31 other end ground connection.
As shown in figure 3,3.3V power circuits include 1117 chips, electric capacity C8, electric capacity C9, electric capacity C10, voltage-regulator diode
WY1, Transient Suppression Diode TVS1；No. 3 pins of 1117 chip are connected with electric capacity C8 one end and connect 4.2V voltages, electricity
Hold No. 1 pin, electric capacity C9 one end, electric capacity C10 one end, the voltage-regulator diode WY1 of the C8 other end respectively with 1117 chips
Positive pole, Transient Suppression Diode TVS1 one end is connected and is grounded；No. 2 pins of 1117 chips are another with electric capacity C9 respectively
End, the electric capacity C10 other end, voltage-regulator diode WY1 negative pole, the Transient Suppression Diode TVS1 other end are connected and exported
3.3V voltage.
As shown in figure 4, main control chip circuit includes single-chip microcomputer STM32F103 chips, resistance R12, resistance R13, electric capacity
C11, electric capacity C12, electric capacity C13, electric capacity C14, electric capacity C15, electric capacity C16, electric capacity C17, electric capacity C18, crystal oscillator JZ1, contact pin J1；
No. 60 pins of STM32F103 chips are connected with resistance R12 one end, resistance R12 other end ground connection, STM32F103 chips
No. 63 pins be connected and be grounded with electric capacity C11 one end, the electric capacity C11 other end and No. 64 pins of STM32F103 chips
And 3.3V voltages are connect, No. 48 pins of STM32F103 chips are connected with electric capacity C15 one end and connect 3.3V voltages, electric capacity C15's
The other end is grounded；No. 31 pins of STM32F103 chips are connected and are grounded with electric capacity C18 one end, the electric capacity C18 other end with
No. 32 pins of STM32F103 chips simultaneously connect 3.3V voltages, one end phase of No. 19 pins and electric capacity C17 of STM32F103 chips
Connect and connect 3.3V voltages, electric capacity C17 other end ground connection, No. 13 pins of STM32F103 chips are connected with electric capacity C16 one end
And connect 3.3V voltages, electric capacity C16 other end ground connection；No. 5 pins of STM32F103 chips respectively with electric capacity C13 one end and
Crystal oscillator JZ1 one end is connected, No. 6 pins of STM32F103 chips one end respectively with electric capacity C14 and the crystal oscillator JZ1 other end
It is connected, the electric capacity C14 other end is connected and is grounded with the electric capacity C13 other end；A resistance R13 termination 3.3V voltages, resistance
The R13 other end is connected with electric capacity C12 one end and connects No. 7 pins of STM32F103 chips, and the electric capacity C12 other end is grounded；
Contact pin J1 No. 1 pin ground connection, No. 2 pins connect No. 49 pins of STM32F103 chips, and No. 3 pins connect STM32F103 chips
No. 46 pins, No. 4 pins connect 3.3V voltages.
As shown in figure 5, Detection Circuit includes resistance R8 and gas sensor CGQ；Resistance R8 one end is passed with gas
Sensor CGQ No. 2 pins are connected, and the resistance R8 other end is connected with No. 20 pins of STM32F103 chips, gas sensor
CGQ No. 3 pins are connected with No. 4 pins and connect 3.3V voltages, and gas sensor CGQ No. 1 pin is grounded.
As shown in fig. 6, key-press circuit for switch include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6,
Resistance R7, metal-oxide-semiconductor Q1, triode Q2, tunnel diode D1, tunnel diode D2, electric capacity C1, electric capacity C2, electric capacity C3, power supply are opened
Close S1, zeroing switches S2, open and close air-breathing switch pump S3；Metal-oxide-semiconductor Q1 S poles are connected with resistance R1 one end and connect 3.7V voltages,
The resistance R1 other end is connected with metal-oxide-semiconductor Q1 G poles and triode Q2 colelctor electrode respectively, metal-oxide-semiconductor Q1 D poles and 4.2V power supplys
Electric capacity C4 one end is connected in circuit；One end, the resistance R3 one end of triode Q2 base stage respectively with resistance R2 are connected, resistance
The R3 other end is connected and is grounded with triode Q2 emitter stage, the negative pole of the resistance R2 other end respectively with tunnel diode D1
It is connected with tunnel diode D2 negative pole, tunnel diode D1 positive pole connects No. 59 pins of single-chip microcomputer STM32F103 chips；Tunnel
Road diode D2 positive pole is connected with resistance R4 one end and switch S1 one end respectively, S1 another termination 3.3V voltages, electricity
Hinder one end, the resistance R5 one end of the R4 other end respectively with electric capacity C1 to be connected and connect No. 61 pins of STM32F103 chips, electricity
Hold the C1 other end, resistance R5 other end ground connection；S2 one end, a S3 termination 3.3V voltages, the S2 other end respectively with
Electric capacity C2 one end, resistance R6 one end is connected and connects No. 57 pins of STM32F103 chips, electric capacity the C2 other end, resistance
R6 other end ground connection, one end, the resistance R7 one end of the S3 other end respectively with electric capacity C3 is connected and connects STM32F103 chips
No. 58 pins, the electric capacity C3 other end, resistance R7 other end ground connection.It is a reserved key and group to open and close air-breathing switch pump S3
Function key is closed, zeroing switches S2, the S3 combinations of keying air-breathing switch pump complete parameter setting function, change the size of parameter.
As shown in fig. 7, sound light alarming circuit include resistance R9, resistance R10, resistance R11, triode Q3, buzzer LS1,
System operation indicator lamp LED1, alarm lamp LED2；No. 22 pins of a resistance R9 termination STM32F103 chips, resistance
The R9 other end is connected with system operation indicator lamp LED1 positive pole, system operation indicator lamp LED1 negative pole ground connection, resistance R10
A termination STM32F103 chips No. 23 pins, the resistance R10 other end is connected with alarm lamp LED2 positive pole, report
Alert indicator lamp LED2 negative pole ground connection；No. 34 pins of a resistance R11 termination STM32F103 chips, the resistance R11 other end
Triode Q3 base stage is connect, triode Q3 colelctor electrode connects buzzer LS1 control end, triode Q3 grounded emitter, honeybee
Ring device LS1 power supply termination 4.2V voltages.
The wireless circuit that uploads includes Bluetooth circuit.
As shown in figure 8, Bluetooth circuit includes RB_LSD chips, No. 9 pins and the STM32F103 chips of RB_LSD chips
No. 24 pins are connected, and No. 10 pins of RB_LSD chips are connected with No. 25 pins of STM32F103 chips, and the 31 of RB_LSD chips
Number pin is connected with No. 33 pins of STM32F103 chips, No. 30 pins of RB_LSD chips with No. 30 of STM32F103 chips
Pin is connected, and No. 29 pins of RB_LSD chips are connected with No. 29 pins of STM32F103 chips, and No. 28 of RB_LSD chips are drawn
Pin is connected with No. 28 pins of STM32F103 chips, No. 27 pins of RB_LSD chips and No. 27 pins of STM32F103 chips
Be connected, No. 22 pins of RB_LSD chips are connected with No. 26 pins of STM32F103 chips, No. 19 pins of RB_LSD chips and
No. 41 pins of STM32F103 chips are connected, No. 17 pins of RB_LSD chips and No. 42 pin phases of STM32F103 chips
Even, No. 16 pins of RB_LSD chips are connected with No. 43 pins of STM32F103 chips.
As shown in figure 9, liquid crystal display circuit include LOED screens, No. 2 pins of LOED screens with No. 39 of STM32F103 chips
Pin be connected, No. 3 pins of LOED screens are connected with No. 38 pins of STM32F103 chips, No. 4 pins of LOED screens and
No. 37 pins of STM32F103 chips are connected, and No. 5 pins of LOED screens are connected with No. 36 pins of STM32F103 chips.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, on the basis of the technical solution of the utility model, those skilled in the art need not pay creation
Property the various modifications that can make of work or deform still within protection domain of the present utility model.
Claims (8)
1. a kind of portable gas detector for connecting smart machine, it is characterized in that, including power circuit, switch key electricity
Road, Detection Circuit, sound light alarming circuit, main control chip circuit is wireless to upload circuit and liquid crystal display circuit；Power supply electricity
Road, key-press circuit for switch, Detection Circuit, sound light alarming circuit, it is wireless upload circuit and liquid crystal display circuit respectively with master
Chip circuit is controlled to be connected；Power circuit includes 4.2V power circuits and 3.3V power circuits；4.2V power circuits are used for acousto-optic
Warning circuit is powered, and 3.3V power circuits are used to power to Detection Circuit, wireless upload circuit and liquid crystal display circuit.
2. a kind of portable gas detector for connecting smart machine according to claim 1, it is characterized in that, it is described
4.2V power circuits include LM2735XMF chips, inductance L1, electric capacity C4, diode D3, electric capacity C5, electric capacity C6, electric capacity C7, electricity
Hinder R30, resistance R31；The one end and electric capacity C4 one end of No. 4 pins and No. 5 pins of LM2735XMF chips respectively with inductance L1
It is connected, No. 1 pin of LM2735XMF chips is connected with the inductance L1 other end and diode D3 positive pole respectively, diode D3
Negative pole one end, resistance R30 one end, electric capacity C6 one end, electric capacity C7 one end respectively with electric capacity C5 be connected and export
4.2V voltages, electric capacity the C6 other end, the electric capacity C7 other end are connected and are grounded；The resistance R30 other end respectively with resistance R31
One end, the electric capacity C5 other end is connected with No. 3 pins of LM2735XMF chips；Electric capacity C4 other end ground connection；Resistance R31
The other end ground connection；
The 3.3V power circuits include 1117 chips, electric capacity C8, electric capacity C9, electric capacity C10, voltage-regulator diode WY1, transient state and suppressed
Diode TVS1；No. 3 pins of 1117 chip are connected with electric capacity C8 one end and connect 4.2V voltages, the electric capacity C8 other end
Press down respectively with No. 1 pin of 1117 chips, electric capacity C9 one end, electric capacity C10 one end, voltage-regulator diode WY1 positive pole, transient state
Diode TVS1 processed one end is connected and is grounded；No. 2 pins of the 1117 chips other ends respectively with electric capacity C9, electric capacity C10
The other end, voltage-regulator diode WY1 negative pole, the Transient Suppression Diode TVS1 other end are connected and export 3.3V voltages.
3. a kind of portable gas detector for connecting smart machine according to claim 1, it is characterized in that, master control core
Piece circuit includes single-chip microcomputer STM32F103 chips, resistance R12, resistance R13, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity
C14, electric capacity C15, electric capacity C16, electric capacity C17, electric capacity C18, crystal oscillator JZ1, contact pin J1；No. 60 pins of STM32F103 chips with
Resistance R12 one end is connected, resistance R12 other end ground connection, No. 63 pins of STM32F103 chips and electric capacity C11 one end
It is connected and is grounded, the electric capacity C11 other end and No. 64 pins of STM32F103 chips simultaneously connects 3.3V voltages, STM32F103 chips
No. 48 pins be connected with electric capacity C15 one end and connect 3.3V voltages, electric capacity C15 other end ground connection；STM32F103 chips
No. 31 pins are connected and are grounded with electric capacity C18 one end, and the electric capacity C18 other end and No. 32 pins of STM32F103 chips are simultaneously
3.3V voltages are connect, No. 19 pins of STM32F103 chips are connected with electric capacity C17 one end and connect 3.3V voltages, and electric capacity C17's is another
One end is grounded, and No. 13 pins of STM32F103 chips are connected with electric capacity C16 one end and connect 3.3V voltages, and electric capacity C16's is another
End ground connection；No. 5 pins of STM32F103 chips are connected with electric capacity C13 one end and crystal oscillator JZ1 one end respectively, STM32F103
No. 6 pins of chip are connected with electric capacity C14 one end and the crystal oscillator JZ1 other end respectively, electric capacity the C14 other end and electric capacity
The C13 other end is connected and is grounded；A resistance R13 termination 3.3V voltages, the resistance R13 other end and electric capacity C12 one end
It is connected and connects No. 7 pins of STM32F103 chips, electric capacity C12 other end ground connection；Contact pin J1 No. 1 pin ground connection, No. 2 are drawn
Pin connects No. 49 pins of STM32F103 chips, and No. 3 pins connect No. 46 pins of STM32F103 chips, and No. 4 pins connect 3.3V electricity
Pressure.
4. a kind of portable gas detector for connecting smart machine according to claim 3, it is characterized in that, gas inspection
Slowdown monitoring circuit includes resistance R8 and gas sensor CGQ；Resistance R8 one end is connected with gas sensor CGQ No. 2 pins, resistance
The R8 other end is connected with No. 20 pins of STM32F103 chips, and gas sensor CGQ No. 3 pins are connected simultaneously with No. 4 pins
Connect 3.3V voltages, gas sensor CGQ No. 1 pin ground connection.
5. a kind of portable gas detector for connecting smart machine according to claim 3, it is characterized in that, switch is pressed
Key circuit include resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, metal-oxide-semiconductor Q1, triode Q2,
Tunnel diode D1, tunnel diode D2, electric capacity C1, electric capacity C2, electric capacity C3, power switch S1, zeroing switches S2, keying air-breathing
Switch pump S3；Metal-oxide-semiconductor Q1 S poles are connected with resistance R1 one end and connect 3.7V voltages, the resistance R1 other end respectively with metal-oxide-semiconductor
Q1 G poles are connected with triode Q2 colelctor electrode, and metal-oxide-semiconductor Q1 D poles are connected with one end of electric capacity C4 in 4.2V power circuits；Three
One end, the resistance R3 one end of pole pipe Q2 base stage respectively with resistance R2 are connected, the resistance R3 other end and triode Q2 hair
Emitter-base bandgap grading is connected and is grounded, the negative pole and tunnel diode D2 negative pole phase of the resistance R2 other end respectively with tunnel diode D1
Even, tunnel diode D1 positive pole connects No. 59 pins of single-chip microcomputer STM32F103 chips；Tunnel diode D2 positive pole respectively with
Resistance R4 one end is connected with switch S1 one end, S1 another termination 3.3V voltages, the resistance R4 other end respectively with electric capacity
C1 one end, resistance R5 one end is connected and connects No. 61 pins of STM32F103 chips, the electric capacity C1 other end, resistance R5
The other end is grounded；S2 one end, a S3 termination 3.3V voltages, S2 other end one end respectively with electric capacity C2, resistance R6
One end is connected and connects No. 57 pins of STM32F103 chips, and the electric capacity C2 other end, the resistance R6 other end are grounded, and S3's is another
One end, the resistance R7 one end of one end respectively with electric capacity C3 are connected and connect No. 58 pins of STM32F103 chips, and electric capacity C3's is another
One end, resistance R7 other end ground connection.
6. a kind of portable gas detector for connecting smart machine according to claim 3, it is characterized in that, acousto-optic report
Alert circuit refers to including resistance R9, resistance R10, resistance R11, triode Q3, buzzer LS1, system operation indicator lamp LED1, alarm
Show lamp LED2；No. 22 pins of a resistance R9 termination STM32F103 chips, resistance the R9 other end and system operation indicator lamp
LED1 positive pole is connected, system operation indicator lamp LED1 negative pole ground connection, and the 23 of a resistance R10 termination STM32F103 chips
Number pin, the resistance R10 other end is connected with alarm lamp LED2 positive pole, alarm lamp LED2 negative pole ground connection；Electricity
Hinder No. 34 pins of a R11 termination STM32F103 chips, resistance R11 another termination triode Q3 base stage, triode Q3
Colelctor electrode connect buzzer LS1 control end, triode Q3 grounded emitter, buzzer LS1 power supply termination 4.2V voltages.
7. a kind of portable gas detector for connecting smart machine according to claim 3, it is characterized in that, it is wireless on
Road conduct electricity including Bluetooth circuit；
Bluetooth circuit includes RB_LSD chips, and No. 9 pins of RB_LSD chips are connected with No. 24 pins of STM32F103 chips,
No. 10 pins of RB_LSD chips are connected with No. 25 pins of STM32F103 chips, No. 31 pins of RB_LSD chips with
No. 33 pins of STM32F103 chips are connected, No. 30 pins of RB_LSD chips and No. 30 pin phases of STM32F103 chips
Even, No. 29 pins of RB_LSD chips are connected with No. 29 pins of STM32F103 chips, No. 28 pins of RB_LSD chips and
No. 28 pins of STM32F103 chips are connected, No. 27 pins of RB_LSD chips and No. 27 pin phases of STM32F103 chips
Even, No. 22 pins of RB_LSD chips are connected with No. 26 pins of STM32F103 chips, No. 19 pins of RB_LSD chips and
No. 41 pins of STM32F103 chips are connected, No. 17 pins of RB_LSD chips and No. 42 pin phases of STM32F103 chips
Even, No. 16 pins of RB_LSD chips are connected with No. 43 pins of STM32F103 chips.
8. a kind of portable gas detector for connecting smart machine according to claim 3, it is characterized in that, liquid crystal
Show that circuit includes OLED screen, No. 2 pins of OLED screen are connected with No. 39 pins of STM32F103 chips, No. 3 pins of OLED screen
It is connected with No. 38 pins of STM32F103 chips, No. 4 pins of OLED screen are connected with No. 37 pins of STM32F103 chips,
No. 5 pins of OLED screen are connected with No. 36 pins of STM32F103 chips.
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| CN201720127861.5U CN206489104U (en) | 2017-02-13 | 2017-02-13 | A kind of portable gas detector for connecting smart machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863952A (en) * | 2017-10-30 | 2018-03-30 | 天津新亚精诚科技有限公司 | The encoder of intelligent emergent light fixture and fire resistant doorsets |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863952A (en) * | 2017-10-30 | 2018-03-30 | 天津新亚精诚科技有限公司 | The encoder of intelligent emergent light fixture and fire resistant doorsets |
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