CN106290780B - A kind of Portable combustible gas detector and its application method - Google Patents
A kind of Portable combustible gas detector and its application method Download PDFInfo
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- CN106290780B CN106290780B CN201610911838.5A CN201610911838A CN106290780B CN 106290780 B CN106290780 B CN 106290780B CN 201610911838 A CN201610911838 A CN 201610911838A CN 106290780 B CN106290780 B CN 106290780B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2503—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques for measuring voltage only, e.g. digital volt meters (DVM's)
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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
A kind of Portable combustible gas detector, including intelligent terminal, telescopic rod and detection module, the module fixing rack for fixed test module is provided at the top of the telescopic rod, it is both provided with infrared sensor on four angles of module fixing rack, the infrared sensor is connected with detection module, the bottom of the telescopic rod is provided with handle, the clamped frame of intelligent terminal for fixing intelligent terminal is provided with above handle, button is provided with below handle fixed frame, the telescopic rod is formed by connecting by multiple connecting rods；The detection module is connected with intelligent terminal；The invention also includes a kind of application methods of Portable combustible gas detector.The function that the present invention can be achieved automatic telescopic, judge fuel gas overfall.
Description
Technical field
The present invention relates to gas detection technology field, specifically a kind of Portable combustible gas detector and its use
Method.
Background technology
City gas is a kind of clean energy resource, its main feature is that calorific value is high, carbon emission amount is low.Portable combustible gas detector
For carrying out combustable gas concentration detection to production, conveying, using in the place of city gas, prevent combustible gas leakage from causing
Accident.
Invention content
It is existing for solving the purpose of the present invention is to provide a kind of Portable combustible gas detector and its application method
Detector can not multi-angle and random length the problem of detecting.
The technical scheme adopted by the invention to solve the technical problem is that：A kind of Portable combustible gas detector, including
Intelligent terminal, telescopic rod and detection module, characterized in that be provided at the top of the telescopic rod for fixed test module
Module fixing rack is both provided with infrared sensor, the infrared sensor and detection mould on four angles of module fixing rack
Block is connected, and the bottom of the telescopic rod is provided with handle, the intelligence for fixing intelligent terminal is provided with above handle
Terminal fixed frame, is provided with button below intelligent terminal fixed frame, and the telescopic rod is formed by connecting by multiple connecting rods；
The detection module is connected with intelligent terminal.
Further, the detection module include gas-detecting device, cell managing device, power supply change-over device, in
Control device, blue-tooth device, switching device, radio transmitting device and voltage check device；The detection device, power supply converting means
It sets, blue-tooth device, switching device, radio transmitting device and voltage check device are connected with control device respectively；Power management fills
The output end the set input with the input terminal of power supply change-over device, the input terminal of voltage check device and gas-detecting device respectively
End is connected.
Further, the control device include cc2541f256rhar singlechip chips circuit and its by resistance r9,
Resistance r10, resistance r11, resistance r12, resistance r13, resistance r14, resistance r15, resistance r16, resistance r17, resistance r18, resistance
R27, capacitance c3, capacitance c4, capacitance c5, capacitance c6, capacitance c7, capacitance c8, capacitance c9, capacitance c10, capacitance c17, capacitance c18,
The peripheral circuit of capacitance c19, capacitance c20, capacitance c21, crystal oscillator jz1 and crystal oscillator jz2 compositions；
The gas-detecting device includes Detection Circuit, and Detection Circuit includes operational amplifier u4a, operation
Amplifier u4b, resistance r22, resistance r23, resistance r24, resistance r25, resistance r26, capacitance c22, capacitance c23 and combustible gas physical examination
Survey sensor cgq；No. 1 pin of the operational amplifier u4a respectively with one end of resistance r11 and operational amplifier u4a 2
Number pin is connected, and No. 3 pins of operational amplifier u4a are connected with one end of one end of resistance r26 and capacitance c23 respectively, resistance
The other end of r26 is connected with one end of one end of resistance r25 and capacitance c22 respectively, the other end of resistance r25 respectively with combustible gas
No. 2 pins of body detecting sensor cgq are connected with one end of resistance r24, the other end of resistance r24 respectively with operational amplifier
No. 7 pins of u4b and No. 6 pins are connected, and No. 8 pins of operational amplifier u4b, No. 1 of fuel gas detection sensor cgq are drawn
Foot is connected with one end of resistance r22 and connects 5v voltages；No. 5 pins of operational amplifier u4b, the other end and resistance of resistance r22
One end of r23 is connected and is connected with one end of the resistance r17 of singlechip chip circuit；The other end of capacitance c23, capacitance c22
No. 3 pins, operation amplifiers of the other end, No. 4 pins of fuel gas detection sensor cgq, fuel gas detection sensor cgq
No. 4 pins of device u4b are connected and are grounded with the other end of resistance r23；
The cell managing device includes battery management circuit, for giving detection device power supply, including BQ24041DSQT
Chip, USB-MINI interfaces, resistance r1, resistance r2, resistance r3, capacitance c1 and capacitance c2；The 1 of the BQ24041DSQT chips
Number pin is connected with one end of No. 1 pin of USB-MINI interfaces and capacitance c1 respectively, No. 2 pins of BQ24041DSQT chips
Be connected with one end of resistance r1, No. 3 pins of BQ24041DSQT chips, the other end of resistance r1, capacitance c1 the other end,
No. 5 pins of USB-MINI interfaces are connected and are grounded with No. 4 pins of USB-MINI interfaces；No. 5 pins of USB-MINI interfaces
Be connected with one end of resistance r2, the other end of resistance r2 respectively with one end of resistance r3, No. 10 pins of BQ24041DSQT chips
It is connected with one end of capacitance c2；The other end of resistance r3 is connected with No. 8 pins of BQ24041DSQT chips, BQ24041DSQT cores
No. 9 pins of piece, No. 7 pins of BQ24041DSQT chips are connected and are grounded with the other end of capacitance c2；
The power supply change-over device includes power-switching circuit, and power-switching circuit includes tps61222dck chips, electricity
Feel l1, inductance l2 and potentiometer e1；No. 5 pins of the tps61222dck chips are connected with one end of inductance l1,
No. 1 pin of tps61222dck chips is connected with the anode of the other end of inductance l1 and potentiometer e1 and connects battery management respectively
One end of the capacitance c2 of circuit；No. 4 pins of tps61222dck chips, No. 2 pins of tps61222dck chips and potentiometer
The anode of e2 is connected and exports 5v voltages；No. 3 of the cathode of potentiometer e2, the cathode of potentiometer e1 and tps61222dck chips
Pin is connected and is grounded；
The blue-tooth device includes CONN_FTSH-105-01-L-DV Bluetooth chips, CONN_FTSH-105-01-L-DV
No. 1 pin of Bluetooth chip is grounded, No. 2 pins and cc2541f256rhar of CONN_FTSH-105-01-L-DV Bluetooth chips
No. 39 pins of singlechip chip are connected, No. 3 pins and the singlechip chip electricity of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r10 on road is connected, No. 4 pins and the singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
Resistance r9 one end be connected, the electricity of No. 5 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
The one end for hindering r15 is connected, the resistance of No. 6 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of r16 is connected, the resistance r18 of No. 7 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
One end be connected, No. 8 pins of CONN_FTSH-105-01-L-DV Bluetooth chips and the resistance r14's of singlechip chip circuit
One end is connected, No. 10 pins of CONN_FTSH-105-01-L-DV Bluetooth chips and the one of the resistance r13 of singlechip chip circuit
End is connected；
The switching device includes power switch circuit, and power switch circuit includes button s1 and resistance r4；It is described to press
One end of button s1 is connected with one end of the capacitance c2 of battery management circuit, and the other end of button s1 is connected simultaneously with one end of resistance r4
It is connected with No. 5 pins of cc2541f256rhar singlechip chips, the other end ground connection of resistance r4；
The radio transmitting device includes wireless transmission circuit, and wireless transmission circuit includes inductance l2, inductance l3, inductance
L4, inductance l5, capacitance c12, capacitance c13, capacitance c14, capacitance c15 and antenna a3；One end of capacitance c14 with
No. 25 pins of cc2541f256rhar singlechip chips are connected, one end and the cc2541f256rhar monolithic movements of capacitance c12
No. 26 pins of piece are connected, and the other end of capacitance c14 is connected with one end of one end of capacitance c15 and inductance l2 respectively, inductance l2
The other end be connected and be grounded with one end of capacitance c13, the other end of capacitance c13 respectively with the other end and inductance of capacitance c12
One end of l3 is connected, and the other end of inductance l3 is connected with one end of the other end of capacitance c15 and inductance l4 respectively, and inductance l4's is another
One end is connected with one end of one end of inductance l5 and capacitance c16 respectively, the other end ground connection of capacitance c16, the other end of inductance l5
It is connected with No. 1 interface of antenna a3, No. 2 interfacing grounds of antenna a3；
The voltage check device includes voltage detecting circuit, and voltage detecting circuit includes resistance r28 and resistance r29,
One end of resistance r28 is connected with one end of the capacitance c2 of battery management circuit, one end of the other end and resistance r29 of resistance r28
It is connected and is connected with one end of the resistance r12 of singlechip chip circuit, the other end ground connection of resistance r29.
Further, the button includes rising button, declines button, start-stop button, left and right buttons and power switch
Button.
Further, the module fixing rack is arranged at the top of telescopic rod, is connect with telescopic rod by rotating device；It is described
Rotating device include 3/4ths sphere shells, sphere, supporting rod, first motor and angular transducer；Sphere is arranged in ball
It in body case, is welded to connect at the top of the bottom of sphere shell and telescopic rod, sphere is welded with module fixing rack by supporting rod
Connection；
The supporting rod is connected with the shaft of first motor, and angular transducer is provided between sphere and supporting rod；
The shaft of the first motor is connected with left and right buttons, and the angular transducer is connected with detection device.
Further, the multiple connecting rod is hollow form connecting rod, and it is recessed that the inner homogeneous of connecting rod is provided with rectangle
Slot is provided with gear between arbitrary two adjacent connecting rods, and the gear is meshed with rectangular recess；And from top
Diameter to the connecting rod of bottom is sequentially increased；
The second motor is provided in connecting rod bottom, the shaft of second motor is connected with gear；Second electricity
The power end of machine is connected with rising button, declines button and start-stop button respectively.
A kind of application method of Portable combustible gas detector, it is special using a kind of Portable combustible gas detector
Sign is to specifically include following steps：
Step 1) makes telescopic rod extend by rising button so that detection module reaches the place for needing to detect；
Infrared sensor in four step 2), the module fixing rack of detection module angles detects whether to be rebuffed, if be rebuffed,
Detection module is then transmitted a signal to, detection module sends intelligent terminal to；
Step 3), the elongation for stopping telescopic rod by start-stop button, detection module detect fuel gas；
Testing result is sent to intelligent terminal by step 4), detection module by blue-tooth device；
Step 5) is rotated by the left and right buttons control rotating device on handle, is carried out to control detection module
360 degree rotation；
Step 6), the rotation by detection module, intelligent terminal shows the concentration of the fuel gas of all directions, to sentence
The overfall of disconnected fuel gas.
The beneficial effects of the invention are as follows：A kind of Portable combustible gas detector provided by the invention and its application method,
Infrared transmission means are both provided on the quadrangle of module fixing rack, for detecting whether being rebuffed, and testing result are sent to
Detection module, detection module are sent to intelligent terminal by bluetooth, to control whether detector moves on.
The rotating device for the Portable combustible gas detector that the present invention uses uses chondritic, can carry out 360 degree of nothings
Dead angle rotates, and carries out control direction of rotation by button, by the concentration of all directions fuel gas, can determine whether out fuel gas
Overfall substantially in which direction so that staff more efficiently makes repairing plan.
The telescopic rod for the Portable combustible gas detector that the present invention uses uses automatic telescopic link, in the inside of connecting rod
Be provided with rectangular recess, gear and the second motor, the positive and negative rotation of the positive and negative rotation control gear of the second motor, by rectangular recess and
The intermeshing of gear is to control the elongation and contraction of telescopic rod.
The detection module for the Portable combustible gas detector that the present invention uses can realize under-voltage detection, power supply conversion, indigo plant
The functions such as tooth transmission, it is simple in structure, it is feature-rich.
Description of the drawings
Fig. 1 is the structural schematic diagram of detector of the present invention；
Fig. 2 is the module connection figure of detector detection module of the present invention；
Fig. 3 is detector singlechip chip circuit of the present invention and its peripheral circuit diagram；
Fig. 4 is detector Detection Circuit figure of the present invention；
Fig. 5 is detector battery management circuit figure of the present invention；
Fig. 6 is detector power-switching circuit figure of the present invention；
Fig. 7 is detector Bluetooth chip circuit diagram of the present invention；
Fig. 8 is detector power switch circuit figure of the present invention；
Fig. 9 is detector wireless transmission circuit figure of the present invention；
Figure 10 is detector voltage detecting circuit figure of the present invention；
Figure 11 is the structural schematic diagram of detector rotating device of the present invention；
Figure 12 is the internal structure schematic diagram of detector telescopic rod of the present invention；
In figure：1, connecting rod, 11, rectangular recess, 12, gear, 2,3/4ths sphere shells, 3, sphere, 4, supporting rod,
5, angular transducer.
Specific implementation mode
As shown in Figure 1, a kind of Portable combustible gas detector, including intelligent terminal, telescopic rod and detection module, in institute
The module fixing rack being provided at the top of telescopic rod for fixed test module is stated, is respectively provided on four angles of module fixing rack
There are infrared sensor, the infrared sensor to be connected with detection module, the bottom of the telescopic rod is provided with handle, in hand
It is provided with the clamped frame of intelligent terminal for fixing intelligent terminal above handle, button is provided with below handle fixed frame,
The telescopic rod is formed by connecting by multiple connecting rods；The detection module is connected with intelligent terminal.Button includes rising to press
Button, declines button, start-stop button, left and right buttons and power switch button.
As shown in Fig. 2, detection module includes gas-detecting device, cell managing device, power supply change-over device, middle control dress
It sets, blue-tooth device, switching device, radio transmitting device and voltage check device；Detection device, power supply change-over device, bluetooth dress
It sets, switching device, radio transmitting device and voltage check device are connected with control device respectively；The output end of electric power controller
It is connected respectively with the input terminal of the input terminal of power supply change-over device, the input terminal of voltage check device and gas-detecting device.
As shown in figure 3, control device includes cc2541f256rhar singlechip chips circuit and its by resistance r9, resistance
R10, resistance r11, resistance r12, resistance r13, resistance r14, resistance r15, resistance r16, resistance r17, resistance r18, resistance r27,
Capacitance c3, capacitance c4, capacitance c5, capacitance c6, capacitance c7, capacitance c8, capacitance c9, capacitance c10, capacitance c17, capacitance c18, capacitance
The peripheral circuit of c19, capacitance c20, capacitance c21, crystal oscillator jz1 and crystal oscillator jz2 compositions；
As shown in figure 4, detection device includes detection circuit, detection circuit includes operational amplifier u4a, operational amplifier
U4b, resistance r22, resistance r23, resistance r24, resistance r25, resistance r26, capacitance c22, capacitance c23 and fuel gas detection sensing
Device cgq；No. 1 pin of the operational amplifier u4a No. 2 pins with one end of resistance r11 and operational amplifier u4a respectively
It is connected, No. 3 pins of operational amplifier u4a are connected with one end of one end of resistance r26 and capacitance c23 respectively, and resistance r26's is another
One end is connected with one end of one end of resistance r25 and capacitance c22 respectively, and the other end of resistance r25 is detected with fuel gas respectively
No. 2 pins of sensor cgq are connected with one end of resistance r24, the other end of resistance r24 No. 7 with operational amplifier u4b respectively
Pin and No. 6 pins are connected, No. 8 pins of operational amplifier u4b, No. 1 pin of fuel gas detection sensor cgq and resistance
One end of r22 is connected and connects 5v voltages；One end of No. 5 pins of operational amplifier u4b, the other end and resistance r23 of resistance r22
It is connected and is connected with one end of the resistance r17 of singlechip chip circuit；The other end of capacitance c23, the other end of capacitance c22, can
The 4 of No. 4 pins of combustion gas body detecting sensor cgq, No. 3 pins of fuel gas detection sensor cgq, operational amplifier u4b
Number pin is connected and is grounded with the other end of resistance r23.
As shown in figure 5, cell managing device includes battery management circuit, it is used to power to detection device, including
BQ24041DSQT chips, USB-MINI interfaces, resistance r1, resistance r2, resistance r3, capacitance c1 and capacitance c2；It is described
No. 1 pin of BQ24041DSQT chips is connected with one end of No. 1 pin of USB-MINI interfaces and capacitance c1 respectively,
No. 2 pins of BQ24041DSQT chips are connected with one end of resistance r1, No. 3 pins of BQ24041DSQT chips, resistance r1
The other end, the other end of capacitance c1, No. 5 pins of USB-MINI interfaces are connected and are grounded with No. 4 pins of USB-MINI interfaces；
No. 5 pins of USB-MINI interfaces are connected with one end of resistance r2, the other end of resistance r2 respectively with one end of resistance r3,
No. 10 pins of BQ24041DSQT chips are connected with one end of capacitance c2；The other end of resistance r3 and BQ24041DSQT chips
No. 8 pins are connected, No. 9 pins of BQ24041DSQT chips, No. 7 pins and capacitance c2 of BQ24041DSQT chips the other end
It is connected and is grounded.
As shown in fig. 6, power supply change-over device includes power-switching circuit, power-switching circuit includes tps61222dck cores
Piece, inductance l1, inductance l2 and potentiometer e1；No. 5 pins of the tps61222dck chips are connected with one end of inductance l1,
No. 1 pin of tps61222dck chips is connected with the anode of the other end of inductance l1 and potentiometer e1 and connects battery management respectively
One end of the capacitance c2 of circuit；No. 4 pins of tps61222dck chips, No. 2 pins of tps61222dck chips and potentiometer
The anode of e2 is connected and exports 5v voltages；No. 3 of the cathode of potentiometer e2, the cathode of potentiometer e1 and tps61222dck chips
Pin is connected and is grounded.
As shown in fig. 7, blue-tooth device includes CONN_FTSH-105-01-L-DV Bluetooth chips, CONN_FTSH-105-01-
No. 1 pin of L-DV Bluetooth chips is grounded, No. 2 pins of CONN_FTSH-105-01-L-DV Bluetooth chips with
No. 39 pins of cc2541f256rhar singlechip chips are connected, No. 3 pins of CONN_FTSH-105-01-L-DV Bluetooth chips
Be connected with one end of the resistance r10 of singlechip chip circuit, No. 4 pins of CONN_FTSH-105-01-L-DV Bluetooth chips with
One end of the resistance r9 of singlechip chip circuit is connected, No. 5 pins and monolithic of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r15 of machine chip circuit is connected, No. 6 pins and microcontroller of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r16 of chip circuit is connected, No. 7 pins and the monolithic movement of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r18 of piece circuit is connected, No. 8 pins and singlechip chip of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r14 of circuit is connected, No. 10 pins and the singlechip chip electricity of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of the resistance r13 on road is connected.
As shown in figure 8, switching device includes power switch circuit, power switch circuit includes button s1 and resistance r4；Institute
The one end for stating one end of button s1 and the capacitance c2 of battery management circuit is connected, the other end of button s1 and one end phase of resistance r4
It is connected even and with No. 5 pins of cc2541f256rhar singlechip chips, the other end ground connection of resistance r4.
As shown in figure 9, radio transmitting device includes wireless transmission circuit, wireless transmission circuit include inductance l2, inductance l3,
Inductance l4, inductance l5, capacitance c12, capacitance c13, capacitance c14, capacitance c15 and antenna a3；One end of capacitance c14 with
No. 25 pins of cc2541f256rhar singlechip chips are connected, one end and the cc2541f256rhar monolithic movements of capacitance c12
No. 26 pins of piece are connected, and the other end of capacitance c14 is connected with one end of one end of capacitance c15 and inductance l2 respectively, inductance l2
The other end be connected and be grounded with one end of capacitance c13, the other end of capacitance c13 respectively with the other end and inductance of capacitance c12
One end of l3 is connected, and the other end of inductance l3 is connected with one end of the other end of capacitance c15 and inductance l4 respectively, and inductance l4's is another
One end is connected with one end of one end of inductance l5 and capacitance c16 respectively, the other end ground connection of capacitance c16, the other end of inductance l5
It is connected with No. 1 interface of antenna a3, No. 2 interfacing grounds of antenna a3.
As shown in Figure 10, the voltage check device includes voltage detecting circuit, and voltage detecting circuit includes resistance r28
With resistance r29, one end of resistance r28 is connected with one end of the capacitance c2 of battery management circuit, the other end and resistance of resistance r28
One end of r29 is connected and is connected with one end of the resistance r12 of singlechip chip circuit, the other end ground connection of resistance r29.
As shown in figure 11, module fixing rack is arranged at the top of telescopic rod, is connect with telescopic rod by rotating device；Described
Rotating device includes 3/4ths sphere shells 2, sphere 3, supporting rod 4, first motor and angular transducer 5；Sphere setting exists
It in sphere shell, is welded to connect at the top of the bottom of sphere shell and telescopic rod, sphere is welded with module fixing rack by supporting rod
It connects in succession；
Connecting rod 1 is connected with the shaft of first motor, and angular transducer 5 is provided between sphere 3 and supporting rod 4；The
The shaft of one motor is connected with left and right buttons, and angular transducer is connected with detection device.
As shown in figure 12, multiple connecting rods 1 are hollow form connecting rod, and it is recessed that the inner homogeneous of connecting rod 1 is provided with rectangle
Slot 11 is provided with gear 12 between arbitrary two adjacent connecting rods, and gear 12 is meshed with rectangular recess 11；And from top
The diameter of the connecting rod of portion to bottom is sequentially increased；
The second motor is provided in connecting rod bottom, the shaft of second motor is connected with gear；Second electricity
The power end of machine is connected with rising button, declines button and start-stop button respectively.
A kind of application method of Portable combustible gas detector, using a kind of Portable combustible gas detector, specifically
Include the following steps：
Step 1) makes telescopic rod extend by rising button so that detection module reaches the place for needing to detect；
Infrared sensor in four step 2), the module fixing rack of detection module angles detects whether to be rebuffed, if be rebuffed,
Detection module is then transmitted a signal to, detection module sends intelligent terminal to；
Step 3), the elongation for stopping telescopic rod by start-stop button, detection module detect fuel gas；
Testing result is sent to intelligent terminal by step 4), detection module by blue-tooth device；
Step 5) is rotated by the left and right buttons control rotating device on handle, is carried out to control detection module
360 degree rotation；
Step 6), the rotation by detection module, intelligent terminal shows the concentration of the fuel gas of all directions, to sentence
The overfall of disconnected fuel gas.
The simple embodiment of the above-mentioned only present invention, those skilled in that art are done in the case where not changing the principle of the present invention
Any change, all within the scope of the present invention.
Claims (7)
1. a kind of Portable combustible gas detector, including intelligent terminal, telescopic rod and detection module, characterized in that described
It is provided with the module fixing rack for fixed test module at the top of telescopic rod, is both provided on four angles of module fixing rack
Infrared sensor, the infrared sensor are connected with detection module, the bottom of the telescopic rod are provided with handle, in handle
Top be provided with the intelligent terminal fixed frame for fixing intelligent terminal, be provided with below intelligent terminal fixed frame by
Button, the telescopic rod are formed by connecting by multiple connecting rods；The detection module is connected with intelligent terminal.
2. a kind of Portable combustible gas detector according to claim 1, characterized in that the detection module includes
Gas-detecting device, cell managing device, power supply change-over device, control device, blue-tooth device, switching device, wireless transmission dress
It sets and voltage check device；The gas-detecting device, power supply change-over device, blue-tooth device, switching device, wireless transmission dress
It sets and is connected respectively with control device with voltage check device；The output end of cell managing device is defeated with power supply change-over device respectively
Enter end, the input terminal of voltage check device is connected with the input terminal of gas-detecting device.
3. a kind of Portable combustible gas detector according to claim 2, characterized in that
The control device includes cc2541f256rhar singlechip chips circuit and its by resistance r9, resistance r10, resistance
R11, resistance r12, resistance r13, resistance r14, resistance r15, resistance r16, resistance r17, resistance r18, resistance r27, capacitance c3, electricity
Hold c4, capacitance c5, capacitance c6, capacitance c7, capacitance c8, capacitance c9, capacitance c10, capacitance c17, capacitance c18, capacitance c19, capacitance
The peripheral circuit of c20, capacitance c21, crystal oscillator jz1 and crystal oscillator jz2 compositions；
The gas-detecting device includes Detection Circuit, and Detection Circuit includes operational amplifier u4a, operation amplifier
Device u4b, resistance r22, resistance r23, resistance r24, resistance r25, resistance r26, capacitance c22, capacitance c23 and fuel gas detection pass
Sensor cgq；No. 1 pin of the operational amplifier u4a draws with No. 2 of one end of resistance r11 and operational amplifier u4a respectively
Foot is connected, and No. 3 pins of operational amplifier u4a are connected with one end of one end of resistance r26 and capacitance c23 respectively, resistance r26's
The other end is connected with one end of one end of resistance r25 and capacitance c22 respectively, the other end of resistance r25 respectively with combustible gas physical examination
No. 2 pins for surveying sensor cgq are connected with one end of resistance r24, the other end of resistance r24 respectively with operational amplifier u4b 7
Number pin and No. 6 pins are connected, No. 8 pins of operational amplifier u4b, No. 1 pin of fuel gas detection sensor cgq and electricity
One end of resistance r22 is connected and connects 5v voltages；The one of No. 5 pins of operational amplifier u4b, the other end of resistance r22 and resistance r23
End is connected and is connected with one end of the resistance r17 of singlechip chip circuit；The other end of capacitance c23, the other end of capacitance c22,
No. 4 pins of fuel gas detection sensor cgq, No. 3 pins of fuel gas detection sensor cgq, operational amplifier u4b
No. 4 pins are connected and are grounded with the other end of resistance r23；
The cell managing device includes battery management circuit, for giving gas-detecting device power supply, including BQ24041DSQT
Chip, USB-MINI interfaces, resistance r1, resistance r2, resistance r3, capacitance c1 and capacitance c2；The 1 of the BQ24041DSQT chips
Number pin is connected with one end of No. 1 pin of USB-MINI interfaces and capacitance c1 respectively, No. 2 pins of BQ24041DSQT chips
Be connected with one end of resistance r1, No. 3 pins of BQ24041DSQT chips, the other end of resistance r1, capacitance c1 the other end,
No. 5 pins of USB-MINI interfaces are connected and are grounded with No. 4 pins of USB-MINI interfaces；No. 5 pins of USB-MINI interfaces
Be connected with one end of resistance r2, the other end of resistance r2 respectively with one end of resistance r3, No. 10 pins of BQ24041DSQT chips
It is connected with one end of capacitance c2；The other end of resistance r3 is connected with No. 8 pins of BQ24041DSQT chips, BQ24041DSQT cores
No. 9 pins of piece, No. 7 pins of BQ24041DSQT chips are connected and are grounded with the other end of capacitance c2；
The power supply change-over device includes power-switching circuit, and power-switching circuit includes tps61222dck chips, inductance
L1, inductance l2 and potentiometer e1；No. 5 pins of the tps61222dck chips are connected with one end of inductance l1,
No. 1 pin of tps61222dck chips is connected with the anode of the other end of inductance l1 and potentiometer e1 and connects battery management respectively
One end of the capacitance c2 of circuit；No. 4 pins of tps61222dck chips, No. 2 pins of tps61222dck chips and potentiometer
The anode of e2 is connected and exports 5v voltages；No. 3 of the cathode of potentiometer e2, the cathode of potentiometer e1 and tps61222dck chips
Pin is connected and is grounded；
The blue-tooth device includes CONN_FTSH-105-01-L-DV Bluetooth chips, CONN_FTSH-105-01-L-DV bluetooths
No. 1 pin of chip is grounded, No. 2 pins and the cc2541f256rhar monolithics of CONN_FTSH-105-01-L-DV Bluetooth chips
No. 39 pins of movement piece are connected, No. 3 pins and the singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of resistance r10 is connected, the electricity of No. 4 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
The one end for hindering r9 is connected, the resistance of No. 5 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
One end of r15 is connected, the resistance r16 of No. 6 pins and singlechip chip circuit of CONN_FTSH-105-01-L-DV Bluetooth chips
One end be connected, No. 7 pins of CONN_FTSH-105-01-L-DV Bluetooth chips and the resistance r18's of singlechip chip circuit
One end is connected, No. 8 pins of CONN_FTSH-105-01-L-DV Bluetooth chips and the one of the resistance r14 of singlechip chip circuit
End is connected, one end of No. 10 pins of CONN_FTSH-105-01-L-DV Bluetooth chips and the resistance r13 of singlechip chip circuit
It is connected；
The switching device includes power switch circuit, and power switch circuit includes button s1 and resistance r4；The button s1
One end be connected with one end of the capacitance c2 of battery management circuit, the other end of button s1 be connected with one end of resistance r4 and with
No. 5 pins of cc2541f256rhar singlechip chips are connected, the other end ground connection of resistance r4；
The radio transmitting device includes wireless transmission circuit, wireless transmission circuit include inductance l2, inductance l3, inductance l4,
Inductance l5, capacitance c12, capacitance c13, capacitance c14, capacitance c15 and antenna a3；One end of capacitance c14 and cc2541f256rhar
No. 25 pins of singlechip chip are connected, one end of capacitance c12 and No. 26 pin phases of cc2541f256rhar singlechip chips
Even, the other end of capacitance c14 is connected with one end of one end of capacitance c15 and inductance l2 respectively, the other end and capacitance of inductance l2
One end of c13 is connected and is grounded, and the other end of capacitance c13 is connected with one end of the other end of capacitance c12 and inductance l3 respectively, electricity
The other end of sense l3 is connected with one end of the other end of capacitance c15 and inductance l4 respectively, the other end of inductance l4 respectively with inductance
One end of l5 is connected with one end of capacitance c16, and the other end ground connection of capacitance c16, the other end of inductance l5 connects with No. 1 of antenna a3
Mouth is connected, No. 2 interfacing grounds of antenna a3；
The voltage check device includes voltage detecting circuit, and voltage detecting circuit includes resistance r28 and resistance r29, resistance
One end of r28 is connected with one end of the capacitance c2 of battery management circuit, and the other end of resistance r28 is connected with one end of resistance r29
And be connected with one end of the resistance r12 of singlechip chip circuit, the other end ground connection of resistance r29.
4. a kind of Portable combustible gas detector according to claim 1, characterized in that the button includes rising
Button, declines button, start-stop button, left and right buttons and power switch button.
5. a kind of Portable combustible gas detector according to claim 1, characterized in that the module fixing rack setting
At the top of telescopic rod, it is connect with telescopic rod by rotating device；The rotating device includes 3/4ths sphere shells, ball
Body, supporting rod, first motor and angular transducer；Sphere is arranged in sphere shell, the bottom of sphere shell and telescopic rod
Top is welded to connect, and sphere is welded to connect with module fixing rack by supporting rod；
The supporting rod is connected with the shaft of first motor, and angular transducer is provided between sphere and supporting rod；It is described
The shaft of first motor is connected with left and right buttons, and the angular transducer is connected with gas-detecting device.
6. a kind of Portable combustible gas detector according to claim 1, characterized in that during the multiple connecting rod is
Empty shape connecting rod is provided with rectangular recess in the inner homogeneous of connecting rod, is provided between arbitrary two adjacent connecting rods
Gear, the gear are meshed with rectangular recess；And it is sequentially increased from top to the diameter of the connecting rod of bottom；
The second motor is provided in connecting rod bottom, the shaft of second motor is connected with gear；Second motor
Power end is connected with rising button, declines button and start-stop button respectively.
7. a kind of application method of Portable combustible gas detector, utilizes a kind of Portable combustible gas detector, feature
It is to specifically include following steps：
Step 1) makes telescopic rod extend by rising button so that detection module reaches the place for needing to detect；
Infrared sensor in four step 2), the module fixing rack of detection module angles detects whether to be rebuffed, will if be rebuffed
Signal sends detection module to, and detection module sends intelligent terminal to；
Step 3), the elongation for stopping telescopic rod by start-stop button, detection module detect fuel gas；
Testing result is sent to intelligent terminal by step 4), detection module by blue-tooth device；
Step 5) is rotated by the left and right buttons control rotating device on handle, and 360 degree are carried out to control detection module
Rotation；
Step 6), the rotation by detection module, intelligent terminal show the concentration of the fuel gas of all directions, to which judgement can
The overfall of combustion gas body.
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