Portable blackbody demarcation instrument
Technical field:
This utility model is related to a kind of portable blackbody demarcation instrument.
Background technology:
Be limited to Current electronic manufacturing technology level restriction, electronic component finished product is offline dispatch from the factory after inevitably cause
Individual fine difference, it is after operation a period of time, all by device aging, variation of ambient temperature, operation electromagnetic environment change etc.
Multifactor impact, its precision and accuracy will occur unpredictable change, and train infrared axle temperature detection device is used
Infrared temperature sensor element is equally Sensitive Apparatuses, will affect vehicle operation safety, in order to correct after its characteristic changing
This change, reaches regulation permissible accuracy and accuracy, at the appointed time using calibration instrument to sensor calibration in addition school
Standard, original calibration instrument bulky, 220VAC are powered, and when need to pull power wire coil during use and being powered calibration, need 2 people difference
Work is completed positioned at indoor and outdoor cooperation inconvenient.
Utility model content:
The purpose of this utility model is to provide a kind of portable blackbody demarcation instrument, to solve the above problems, reduces existing
Calibration blackbody size so as to conveniently hold;Built-in rechargeable battery breaks away from the constraint of power line, and user is by the button on panel
Completing to arrange temperature work, or control host computer by wireless WIFI module carries out calibration associative operation, chromatic liquid crystal screen
LCD can show preset temperature and real-time blackbody temperature information, can also show WIFI connection relevant informations, the black matrix heat of high stability
Source provides uniform, stable thermal source output for calibration, it is ensured that scaled values are accurate.
Above-mentioned purpose is realized by following technical scheme:
A kind of portable blackbody demarcation instrument, its composition include:Control button KEYS, display screen LCD, described control button
Information is passed to panel Ctrl by four road universal input/output interface GPIO/4 by KEYS, and described panel Ctrl includes
MCU system circuit, temperature collection circuit TCC, heat driven circuit HDV, WIFI module and charge-discharge circuit CHR, described MCU
Circuit system with WIFI module by asynchronous serial communication bus UART2 bi-directional signal, will believe by described MCU system circuit
Number heat driven circuit HDV is passed to by universal input/output interface GPIO/1 all the way, described heat driven circuit HDV will
Output pwm signal passes to heating and attemperating unit HEATER, and signal is passed by described heating and attemperating unit HEATER respectively
Temperature collection circuit TCC and black matrix BLB is passed, described temperature collection circuit TCC passes through ADC by signal transmission to MCU system
Signal is passed to display screen LCD by asynchronous serial communication bus UART1 by circuit, described MCU system circuit, and described fills
Discharge circuit CHR receives the voltage signal of lithium polymer battery Li-BAT.
Described portable blackbody demarcation instrument, described MCU system circuit include ARM flush bonding processors, described ARM
One end of No. 1 pins in parallel diode D3 of flush bonding processor IC3 and one end of diode D4, described diode D4's are another
One end parallel connection input voltage voltage reference chip V3.3, one end of resistance R43, one end of electric capacity C23 and ARM flush bonding processors
No. 64 pins of IC3, are grounded after No. 63 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C23;
One end of shunt capacitance C27 after the other end series direct current battery DC of described diode D3, the one of electric capacity C26
One end of end, one end of electric capacity C24, one end of electric capacity C28 and electric capacity C25, the other end parallel resistance of described electric capacity C24
The other end of R43 and No. 7 pin RESET ends of ARM flush bonding processor IC3;
No. 4 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C27 are with crystal resonator Y2's
One end, No. 3 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C28 are another with crystal resonator Y2
End;
One end of the other end parallel-connected transistor resonator Y1 of described C26, one end of resistance R44 and ARM embedded processings
No. 5 pins of device IC3, the other end of the other end parallel-connected transistor resonator Y1 of described C25, the other end of resistance R44 and ARM
No. 6 pins of flush bonding processor IC3;
Series capacitance C29 between No. 12 pins and No. 13 pins of described ARM flush bonding processor IC3;
Series capacitance C30 between No. 18 pins and No. 19 pins of described described ARM flush bonding processor IC3;
Series capacitance C31 between No. 31 pins and No. 32 pins of described ARM flush bonding processor IC3;
Series capacitance C32 between No. 47 pins and No. 48 pins of described ARM flush bonding processor IC3.
Described portable blackbody demarcation instrument, described temperature collection circuit TCC include blackbody temperature sensor CN3, institute
No. 3 pins ground connection of the blackbody temperature sensor CN3 for stating, No. 1 pins in parallel resistance of described blackbody temperature sensor CN3
One end of one end, one end of resistance R19 and electric capacity C14 of R15, the one of other end parallel resistance R16 of described resistance R15
The K pins of end, one end of resistance R13, one end of resistance R12 and voltage reference chip V3, the other end of described resistance R13 is simultaneously
One end of connection resistance R14 and the R pins of voltage reference chip V3, the other end of described resistance R14 connect voltage reference chip
The A pins of V3 and earth terminal, the other end of described resistance R12 connect voltage end+5V;
No. 2 pins of described blackbody temperature sensor CN3 connect one end of resistance R17, and described resistance R17's is another
One end of the other end, one end of resistance R18 and electric capacity C15 of end parallel resistance R16, the other end of described electric capacity C15 are in parallel
The other end of electric capacity C14 and one end of resistance R20, the 2IN+ of the other end operational amplifier IC1 in parallel of described resistance R20 are drawn
The other end of foot and resistance R19, the 2IN- pins of the other end concatenation operation amplifier IC1 of described resistance R18, described fortune
The 2OUT pins for calculating amplifier IC1 connect one end of resistance R22, and the one of the other end shunt capacitance C17 of described resistance R22
No. 9 pin analog-digital converter ADCC11, described electric capacity C17 of end, one end of diode V4 and ARM flush bonding processor IC3
The other end it is in parallel with the other end of diode V4 after be grounded, described operational amplifier IC1 parallel resistances R21, described electricity
Resistance R21 shunt capacitance C16.
Described portable blackbody demarcation instrument, described charge-discharge circuit CHR include connecting ARM flush bonding processor IC3
No. 10 pin analog-digital converter ADCC12, one end of described analog-digital converter ADCC12 shunt capacitance C20, diode V5
One end and one end of resistance R29, are grounded after the other end of described electric capacity C20 is in parallel with the other end of diode V5, described
The 2IN+ pins of the other end parallel connection operational amplifier IC2 of resistance R29 and the 1OUT pins of operational amplifier IC2, described fortune
One end of the 2OUT pins and resistance R27 of operational amplifier IC2 in parallel after the 2IN- pin serial connection resistance R28 of calculation amplifier IC2,
The 1IN- pins of the other end concatenation operation amplifier IC2 of described resistance R27, the 1IN+ of described operational amplifier IC2 draw
Foot connects one end of resistance R26, one end of other end parallel resistance R25 of described resistance R26, one end of resistance R24 and electricity
Hold one end of C18, be grounded after the other end of other end parallel resistance R25 of described electric capacity C17, described resistance R24's is another
Connect voltage end+24V after series resistance R23 of one end;
Parallel resistance R31 and audion after No. 37 pin PTcharge series resistances R30 of ARM flush bonding processor IC3
Base stage b of Q1, the emitter e ground connection of described audion Q1, the one of the colelctor electrode c parallel diode D1 of described audion Q1
End and one end of KC coils, are connected resistance R32 after the other end of described diode D1 is in parallel with the other end of KC coils, described
Resistance R32 connects the voltage end+24V of lithium battery;
One end of one charging end series capacitor FU1 of described lithium battery, the other end of described capacitor FU connect
The second charging end is reconnected after connecing switch;
Connect photoelectrical coupler after No. 22 pin T3PWM1 series resistances R33 of described ARM flush bonding processor IC3
One end of diode in IC4, one end of other end parallel resistance R34 of diode and N-channel in described photoelectrical coupler IC4
The source S of field effect transistor Q2, the grid G of other end N-channel field effect transistor Q2 in parallel of described resistance R34 and photoelectrical coupler
The emitter e of audion in IC4, in described photoelectrical coupler IC4, the colelctor electrode c connection voltage end+15V of audion, described
N-channel field effect transistor Q2 drain D serial fuse FU2 after connect lithium battery OUT terminal.
Beneficial effect:
1. this utility model is designed using small size, and the built-in lithium polymer battery of design fusion is powered, color liquid crystal screen display
Showing, high precision temperature control device, the control of high-performance MCU, the module such as WIFI radio communications. a people completes top mark work, and one hand can be held
Calibration cruising time is held up to 80min, the personnel of maintaining easily carry out outdoor calibration work, shorten the outdoor work time, reduction dimension
Shield personnel amount, improves work efficiency.
2. this utility model breaks heater high current, and inefficient confinement is added using the thin film of new and downsizing
Hot device, drives heater circuit using the PWM based on closed loop control, reduces operating power consumption, provides technical foundation for portable design.
3. this utility model adopts the lithium polymer battery of high-energy-density to provide powerful for equipment long-time endurance
Ensure.
4. the friendly man machine interface of this utility model, is execute-in-place provides convenient, reduces user and adapts to the equipment time,
Ensure user left-hand seat i.e. can, very with affinity.
5. wireless WIFI control of the present utility model can according to information interface be provided with the controlled in wireless to host computer and
Data exchange, live 1 people can complete calibration work, and zero-waiting output result is directly perceived efficient.
6. heating control algorithms under hierarchical temperature control refinement different temperatures of the present utility model, improve temperature stability
And accuracy, ensure the calibration results accurately and reliably.
Description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is MCU system circuit diagram of the present utility model.
Accompanying drawing 3 is temperature collection circuit figure of the present utility model.
Accompanying drawing 4 is this utility model charge-discharge circuit figure A.
Accompanying drawing 5 is this utility model charge-discharge circuit figure B.
Accompanying drawing 6 is this utility model charge-discharge circuit figure C.
Accompanying drawing 7 is this utility model charge-discharge circuit figure D.
Accompanying drawing 8 is this utility model charge-discharge circuit figure E.
Accompanying drawing 9 is automatic mode operation flow chart of the present utility model.
Accompanying drawing 10 is unmanned pattern workflow diagram of the present utility model.
Specific embodiment:
Embodiment 1
A kind of portable blackbody demarcation instrument, its composition include:Control button KEYS, display screen LCD, described control button
Information is passed to panel Ctrl by four road universal input/output interface GPIO/4 by KEYS, and described panel Ctrl includes
MCU system circuit, temperature collection circuit TCC, heat driven circuit HDV, WIFI module and charge-discharge circuit CHR, described MCU
Circuit system with WIFI module by asynchronous serial communication bus UART2 bi-directional signal, will believe by described MCU system circuit
Number heat driven circuit HDV is passed to by universal input/output interface GPIO/1 all the way, described heat driven circuit HDV will
Output pwm signal passes to heating and attemperating unit HEATER, and signal is passed by described heating and attemperating unit HEATER respectively
Temperature collection circuit TCC and black matrix BLB is passed, described temperature collection circuit TCC passes through ADC by signal transmission to MCU system
Signal is passed to display screen LCD by asynchronous serial communication bus UART1 by circuit, described MCU system circuit, and described fills
Discharge circuit CHR receives the voltage signal of lithium polymer battery Li-BAT.
Core of the MCU system circuit as utility model, the work of global control calibration instrument.It is total by asynchronous serial communication
Line UART1 control LCD are shown, send serial ports instruction control LCD and show related control and the character in control or numeral;
MCU system circuit reads button KEYS states by GPIO, and button KEYS can be input into preset temperature as user input channel;
WIFI module link information etc. can also carry out related radio operation by calibration instrument to host computer;MCU system circuit is followed by master
The mode of ring poll carries out status scan reading, obtains user's control state so as to make corresponding instruction to calibration instrument.MCU system
Circuit sends instruction by asynchronous serial communication bus UART2 to WIFI module and WIFI module is configured, after being provided with
WIFI module enters serial ports transparent transmission mode, and MCU system circuit can directly transmit host computer message and carry out information exchange with host computer
And control;MCU system circuit reads blackbody temperature data by ADC, controls heat driven circuit by GPIO output pwm signals
Heating and attemperating unit is driven to complete stable heating operation;On the one hand charge-discharge circuit controls lithium polymer battery blood pressure lowering for control
Making sheet is powered, and is on the one hand connected with charger by case interface and battery is charged.
Embodiment 2
Portable blackbody demarcation instrument described in embodiment 1, described MCU system circuit include ARM flush bonding processors, institute
One end of No. 1 pins in parallel diode D3 of the ARM flush bonding processor IC3 for stating and one end of diode D4, two described poles
Other end parallel connection input voltage voltage reference chip V3.3 of pipe D4, one end of resistance R43, one end of electric capacity C23 and ARM are embedded
No. 64 pins of formula processor IC3, after No. 63 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C23
Ground connection;
One end of shunt capacitance C27 after the other end series direct current battery DC of described diode D3, the one of electric capacity C26
One end of end, one end of electric capacity C24, one end of electric capacity C28 and electric capacity C25, the other end parallel resistance of described electric capacity C24
The other end of R43 and No. 7 pin RESET ends of ARM flush bonding processor IC3;
No. 4 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C27 are with crystal resonator Y2's
One end, No. 3 pins of the other end parallel connection ARM flush bonding processor IC3 of described electric capacity C28 are another with crystal resonator Y2
End;
One end of the other end parallel-connected transistor resonator Y1 of described C26, one end of resistance R44 and ARM embedded processings
No. 5 pins of device IC3, the other end of the other end parallel-connected transistor resonator Y1 of described C25, the other end of resistance R44 and ARM
No. 6 pins of flush bonding processor IC3;
Series capacitance C29 between No. 12 pins and No. 13 pins of described ARM flush bonding processor IC3;
Series capacitance C30 between No. 18 pins and No. 19 pins of described described ARM flush bonding processor IC3;
Series capacitance C31 between No. 31 pins and No. 32 pins of described ARM flush bonding processor IC3;
Series capacitance C32 between No. 47 pins and No. 48 pins of described ARM flush bonding processor IC3.
Embodiment 3
Portable blackbody demarcation instrument described in embodiment 1, described temperature collection circuit TCC include blackbody temperature sensor
No. 3 pins ground connection of CN3, described blackbody temperature sensor CN3, No. 1 pins in parallel of described blackbody temperature sensor CN3
One end of one end, one end of resistance R19 and electric capacity C14 of resistance R15, other end parallel resistance R16 of described resistance R15
The K pins of one end, one end of resistance R13, one end of resistance R12 and voltage reference chip V3, the other end of described resistance R13
One end of parallel resistance R14 and the R pins of voltage reference chip V3, the other end of described resistance R14 connect voltage reference core
The A pins of piece V3 and earth terminal, the other end of described resistance R12 connect voltage end+5V;
No. 2 pins of described blackbody temperature sensor CN3 connect one end of resistance R17, and described resistance R17's is another
One end of the other end, one end of resistance R18 and electric capacity C15 of end parallel resistance R16, the other end of described electric capacity C15 are in parallel
The other end of electric capacity C14 and one end of resistance R20, the 2IN+ of the other end operational amplifier IC1 in parallel of described resistance R20 are drawn
The other end of foot and resistance R19, the 2IN- pins of the other end concatenation operation amplifier IC1 of described resistance R18, described fortune
The 2OUT pins for calculating amplifier IC1 connect one end of resistance R22, and the one of the other end shunt capacitance C17 of described resistance R22
No. 9 pin analog-digital converter ADCC11, described electric capacity C17 of end, one end of diode V4 and ARM flush bonding processor IC3
The other end it is in parallel with the other end of diode V4 after be grounded, described operational amplifier IC1 parallel resistances R21, described electricity
Resistance R21 shunt capacitance C16.
Embodiment 4
Portable blackbody demarcation instrument described in embodiment 1, described charge-discharge circuit CHR include connecting the embedded places of ARM
No. 10 pin analog-digital converter ADCC12 of reason device IC3, one end of described analog-digital converter ADCC12 shunt capacitance C20, two
One end of pole pipe V5 and one end of resistance R29, the other end of described electric capacity C20 is in parallel with the other end of diode V5 to be followed by
Ground, the 2IN+ pins of the other end operational amplifier IC2 in parallel of described resistance R29 and the 1OUT pins of operational amplifier IC2,
The 2OUT pins and resistance of operational amplifier IC2 in parallel after the 2IN- pin serial connection resistance R28 of described operational amplifier IC2
One end of R27, the 1IN- pins of the other end concatenation operation amplifier IC2 of described resistance R27, described operational amplifier
The 1IN+ pins of IC2 connect one end of resistance R26, one end of other end parallel resistance R25 of described resistance R26, resistance R24
One end and electric capacity C18 one end, be grounded after the other end of other end parallel resistance R25 of described electric capacity C17, described electricity
Connect voltage end+24V after other end series resistance R23 of resistance R24;
Parallel resistance R31 and audion after No. 37 pin PTcharge series resistances R30 of ARM flush bonding processor IC3
Base stage b of Q1, the emitter e ground connection of described audion Q1, the one of the colelctor electrode c parallel diode D1 of described audion Q1
End and one end of KC coils, are connected resistance R32 after the other end of described diode D1 is in parallel with the other end of KC coils, described
Resistance R32 connects the voltage end+24V of lithium battery;
One end of one charging end series capacitor FU1 of described lithium battery, the other end of described capacitor FU connect
The second charging end is reconnected after connecing switch;
Connect photoelectrical coupler after No. 22 pin T3PWM1 series resistances R33 of described ARM flush bonding processor IC3
One end of diode in IC4, one end of other end parallel resistance R34 of diode and N-channel in described photoelectrical coupler IC4
The source S of field effect transistor Q2, the grid G of other end N-channel field effect transistor Q2 in parallel of described resistance R34 and photoelectrical coupler
The emitter e of audion in IC4, in described photoelectrical coupler IC4, the colelctor electrode c connection voltage end+15V of audion, described
N-channel field effect transistor Q2 drain D serial fuse FU2 after connect lithium battery OUT terminal.
Embodiment 5
Portable blackbody demarcation instrument described in embodiment 1, the model of described ARM flush bonding processor IC3 is STM32.
Embodiment 6
Portable blackbody demarcation instrument described in embodiment 3 or 4, described operational amplifier IC1's and operational amplifier IC2
Model is TLC272.
Embodiment 7
Portable blackbody demarcation instrument described in embodiment 4, the model of described photoelectrical coupler IC4 is TLP127.
Embodiment 8
Portable blackbody demarcation instrument described in embodiment 1, the model of described voltage reference chip V3 is TL431.
Embodiment 9
The mode of operation of the portable blackbody demarcation instrument described in embodiment 1, including automatic mode, manual mode and unmanned mould
Formula, described automatic mode are comprised the following steps:
Step S101:Automatic mode interface;
Step S102:The button of " setting temperature " is pressed at automatic mode interface;
Step S103:Upper and lower, left and right button setting preset temperature " individual 1,000 " numerical value is pressed temperature front is arranged;
Step S104:Preset temperature is pressed return push-button preservation and arranges and return to automatic mode interface after setting;
Step S105:" beginning to warm up " button is pressed at automatic mode interface;
Step S106:Heating and attemperating unit are heated to black matrix;
Step S107:Whether the temperature sensor senses black matrix being arranged on black matrix is equal with preset temperature value?(absolute difference
Value is in prescribed limit);
Step S108:Return to step S106 if the temperature difference is big;Carry out if black matrix is equal with preset temperature value next
Step;
Step S109:If black matrix is equal with preset temperature value, the button of " starting to calibrate " is pressed;
Step S110:Calibration;
Step S111:Press the button of " completing to calibrate ";
Step S112:Result after calibration is sent to host computer after the completion of calibration;
Step S113:The calibration results have been sent to host computer, " confirmation " button has been pressed.
Embodiment 10
Unmanned pattern described in embodiment 9 is comprised the following steps:
Step S201:Unmanned mode interface;
Step S202:START button is pressed in unmanned mode interface;
Step S203:Calibration instrument (slave computer) sends " starting to calibrate message " to detection station host (host computer);
Step S204:After sending " starting to calibrate message ", inquiry " infomational message " automatically;
Step S205:Information type is judged according to " infomational message " content;
Step S206:Return to step S201 if " infomational message " content is comprising Stop message;If " infomational message "
Content then carries out next step comprising session information;
Step S207:By " infomational message " curriculum offering number of stages and preset temperature value;
Step S208:After setting up number of stages and preset temperature value, opening makes heating;
Step S209:Heating is completed;
Step S210:" door open command message " is sent after the completion of heating;
Step S211:Time delay 5s sends " instruction message of closing the door " (instruction message bag of closing the door afterwards to send " door open command message "
Containing blackbody temperature);
Step S212:Send " instruction message of closing the door " return to step S205 afterwards.
Certainly, described above is not that, to restriction of the present utility model, this utility model is also not limited to the example above,
Change, remodeling, addition or replacement that those skilled in the art are made in essential scope of the present utility model, also should
Belong to protection domain of the present utility model.