CN106183889A - Locomotive engine speed governing analog based on MSP430 and method of work thereof - Google Patents
Locomotive engine speed governing analog based on MSP430 and method of work thereof Download PDFInfo
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- CN106183889A CN106183889A CN201610621027.1A CN201610621027A CN106183889A CN 106183889 A CN106183889 A CN 106183889A CN 201610621027 A CN201610621027 A CN 201610621027A CN 106183889 A CN106183889 A CN 106183889A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a kind of locomotive engine speed governing analog based on MSP430 and method of work thereof, including MSP430 single-chip microcomputer etc..The present invention is the change that real-time single-chip microcomputer is acquired locomotive handle level, difference further according to handle level, single-chip microcomputer exports 3 road PWM pwm voltages, control silicon rectifier, and then control the angle of flow@of IGCT, control cut-offfing of three sections of bridges of locomotive, it is achieved that control the voltage of locomotive engine, it is achieved that the speed governing of locomotive.
Description
Technical field
The invention belongs to locomotive engine technical field, be specifically related to a kind of locomotive engine speed governing based on MSP430 simulation dress
Put and method of work.
Background technology
Fig. 1 is that the rectifying and pressure-regulating of end bogie unit simplifies circuit.Tractive winding a1-b1-x1, a2-x2 voltage effective value
Being 686.8V, wherein a1-b1, b1-x1 are 343.4V, constitute three sections of not decile rectifier bridges with corresponding commutator.First open
IGCT T5, the T6 of the rectifier bridge powered by tractive winding a2-x2, sequentially phase shift, commutating voltage is gradually increased to 1/2Ud by zero.
Rectified current is by diode D1, D2 and D5, D6 afterflow.When the positive half period of power supply, electric current is by tractive winding a2 → T5 → D2
→ wire 71 → smoothing reactor → traction motor armature → Main-pole windings → wire 72 → D5 → D4 → x2 → a2, works as power supply
During negative half-cycle, electric current by tractive winding x2 → D3 → D2 → D1 → wire 71 → smoothing reactor → traction motor armature →
Main-pole windings → wire 72 → D6 → T6 → a2 → x2.At this moment the element alternating conductive of second segment bridge, the rectifier tube of first paragraph bridge
D1, D2 play afterflow effect.When full gate is put by IGCT T5, T6, but also less than time open, put into the rectification of winding a1 b1 section
Bridge, triggers T1, T3, and T5, T6 continues to full gate and put.When power supply is positive half period, if triggering T3 when phased angle α, then
Electric current is by a1 → D1 → wire 71 → smoothing reactor → traction motor armature Main-pole windings → wire 72 → D5 → D4 → x2
→a2→T5→T3→b1→a1.When power supply negative half-cycle, then electric current is by b1 → T1 → wire 71 → smoothing reactor → lead
Draw motor armature → Main-pole windings → wire 72 → D2 → T6 → a2 → x2 → D3 → D2 → a1 → b1.Unlike above
T1, D2 turn on, and T3, D1 end.T1, T3 order phase shift.Commutating voltage regulates between 1/2Ud to 3/4Ud.As winding a1 b1
When full gate is put by section rectifier bridge, putting into the rectifier bridge of winding b1 x1 section, its process is similar with front.T2, T4 order phase shift, rectification
Voltage regulates between 3/4Ud to Ud.Outfan at commutator is in parallel resistance 75R and 76R, the effect of its resistance has two
Individual: one be locomotive high-voltage zero load do pressure limiting experiment time, make the load of commutator, play afterflow effect；Two when being up, it is possible to
Absorb part overvoltage.
In Fig. 2, single phase half wave controlled rectifier output voltage average value is U=0.45U2 (1+cos@)/2.U2 is transformation
The Secondary Winding of device ,@is pilot angle, changes pilot angle and just can change output voltage U.@is the least, and U is bigger, when@=0, brilliant
Brake tube turns on entirely, output maximum, as@=∏, is output as 0.And@angle control controlled by silicon rectifier controller.
Control is 10K given side, thus controls@angle, thus controls the conducting of the IGCT of main circuit and then control the electricity of main circuit
Pressure output.
Summary of the invention
The invention aims to overcome above-mentioned not enough offer a kind of locomotive engine speed governing based on MSP430 simulation dress
Put and method of work.
Present invention locomotive engine based on MSP430 speed governing analog, including MSP430 single-chip microcomputer, also includes handle level
Position acquisition module ADC0, first paragraph bridge voltage output module ADC1, second segment bridge voltage output module ADC2, the 3rd section of bridge voltage
Output module ADC3, first paragraph bridge PWM output and LED, second segment bridge PWM output and LED, the 3rd section of bridge PWM output and
LED and gather the liquid crystal display that voltage and three sections of bridges are opened, the letter of described handle level acquisition module ADC0 for showing
Number outfan is connected with the signal input part of MSP430 single-chip microcomputer, the signal output of described first paragraph bridge voltage output module ADC1
End be connected with the signal input part of MSP430 single-chip microcomputer, the signal output part of described second segment bridge voltage output module ADC2 and
The signal input part of MSP430 single-chip microcomputer is connected, the signal output part of described 3rd section of bridge voltage output module ADC3 and MSP430
The signal input part of single-chip microcomputer is connected, the signal output part of described MSP430 single-chip microcomputer and first paragraph bridge PWM output and LED
Signal input part is connected, and the signal output part of described MSP430 single-chip microcomputer inputs with the signal of second segment bridge PWM output and LED
End is connected, and the signal input part of the signal output part of described MSP430 single-chip microcomputer and the 3rd section of bridge PWM output and LED is connected,
The described signal output part of MSP430 single-chip microcomputer is connected with the signal input part of liquid crystal display.
Further, also include in fault interrupting and processing module, the signal output part of described MSP430 single-chip microcomputer and fault
Disconnected and processing module input is connected.
Further, described handle level acquisition module ADC0 includes the 19th resistance R19 and the 20th resistance R20, described
1 foot of the 19th resistance R19 connects 3.3V power supply, and 2 feet of described 19th resistance R19 connect 1 foot of the 20th resistance R20, and second
The 2 foot ground connection of ten resistance R20,3 feet of the 20th resistance R20 access the P6.0 mouth of MSP430 single-chip microcomputer.
Described locomotive engine speed governing analog based on MSP430, its method of work comprises the following steps:
Step 1: carry out Single Chip Microcomputer (SCM) program initialization: timer parameter setting, liquid crystal display screen initial state setting, timer interruption end
Mouth parameter is arranged and the definition of display lamp output port；
Step 2: input signal analog-to-digital conversion initiation parameter is arranged；
Step 3: whether inquiry meets system start-up condition, if meeting condition, entering corresponding interrupt routine condition and looking into
Asking, otherwise program continues waiting for；
Step 4: interrupt condition is inquired about, and meets interrupt condition and then performs step 5, enters this program and first carry out interrupt condition
Inquiry, and perform to meet the interrupt routine of condition；Otherwise perform step 6 and carry out the signals collecting of handle level parameter value
Program；
Step 5: interruption subroutine；
Step 6: remove liquid crystal display screen and show；
Step 7: perform parameter acquisition in using subprogram, inquires the sampling number set of being in order and then performs to adopt
Sample display subroutine, otherwise returns to step 4.Continue the program operation that step 4 starts.
Further, the interrupt condition of described step 4 includes whether faulty and whether has button operation.
The present invention is the change that real-time single-chip microcomputer is acquired locomotive handle level, further according to the difference of handle level,
Single-chip microcomputer exports 3 road PWM pwm voltages, controls silicon rectifier, and then the angle of flow@of control IGCT, controls locomotive three
Duan Qiao cut-offs, it is achieved that control the voltage of locomotive engine, it is achieved that the speed governing of locomotive.
Accompanying drawing explanation
Fig. 1 is main circuit of electric locomotive schematic diagram；
Fig. 2 is silicon rectifier controller circuitry schematic diagram；
Fig. 3 is apparatus of the present invention schematic diagram；
Fig. 4 is the power circuit diagram used by the present invention；
Fig. 5 is that AMS1117 produces 3.3v potential circuit figure；
Fig. 6 is handle level acquisition module ADC0 circuit diagram；
Fig. 7 is method of work flow chart of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated:
Present invention locomotive engine based on MSP430 speed governing analog, including MSP430 single-chip microcomputer, also includes handle level
Position acquisition module ADC0, first paragraph bridge voltage output module ADC1, second segment bridge voltage output module ADC2, the 3rd section of bridge voltage
Output module ADC3, first paragraph bridge PWM output and LED, second segment bridge PWM output and LED, the 3rd section of bridge PWM output and
LED and gather the liquid crystal display that voltage and three bridge cut-off are opened, the letter of described handle level acquisition module ADC0 for showing
Number outfan is connected with the signal input part of MSP430 single-chip microcomputer, the signal output of described first paragraph bridge voltage output module ADC1
End be connected with the signal input part of MSP430 single-chip microcomputer, the signal output part of described second segment bridge voltage output module ADC2 and
The signal input part of MSP430 single-chip microcomputer is connected, the signal output part of described 3rd section of bridge voltage output module ADC3 and MSP430
The signal input part of single-chip microcomputer is connected, the signal output part of described MSP430 single-chip microcomputer and first paragraph bridge PWM output and LED
Signal input part is connected, and the signal output part of described MSP430 single-chip microcomputer inputs with the signal of second segment bridge PWM output and LED
End is connected, and the signal input part of the signal output part of described MSP430 single-chip microcomputer and the 3rd section of bridge PWM output and LED is connected,
The described signal output part of MSP430 single-chip microcomputer is connected with the signal input part of liquid crystal display.This device also includes fault interrupting
And processing module, the signal output part of described MSP430 single-chip microcomputer is connected with fault interrupting and processing module input.
Described handle level acquisition module ADC0 includes the 19th resistance R19 and the 20th resistance R20, described 19th electricity
1 foot of resistance R19 connects 3.3V power supply, and 2 feet of described 19th resistance R19 meet 1 foot of the 20th resistance R20, the 20th resistance R20
2 foot ground connection, the 20th resistance R20 3 feet access MSP430 single-chip microcomputers P6.0 mouth.
Described locomotive engine speed governing analog based on MSP430, its method of work comprises the following steps:
Step 1: carry out Single Chip Microcomputer (SCM) program initialization: timer parameter setting, liquid crystal display screen initial state setting, timer interruption end
Mouth parameter is arranged and the definition of display lamp output port；
Step 2: input signal analog-to-digital conversion initiation parameter is arranged；
Step 3: whether inquiry meets system start-up condition, if meeting condition, entering corresponding interrupt routine condition and looking into
Asking, otherwise program continues waiting for；
Step 4: interrupt condition is inquired about, and meets interrupt condition and then performs step 5, enters this program and first carry out interrupt condition
Inquiry, and perform to meet the interrupt routine of condition；Otherwise perform step 6 and carry out the signals collecting of handle level parameter value
Program；Described interrupt condition includes whether faulty and whether has button operation.
Step 5: interruption subroutine；
Step 6: remove liquid crystal display screen and show；
Step 7: perform parameter acquisition in using subprogram, inquires the sampling number set of being in order and then performs to adopt
Sample display subroutine, otherwise returns to step 4.Continue the program operation that step 4 starts.
The present invention be MSP430 single-chip microcomputer based on TI company be control system core, utilize the AD within single-chip microcomputer to machine
Cart handle level carries out Real-time Collection, further according to handle level, utilizes SCM PWM pulsewidth output voltage control main circuit of electric locomotive
The voltage output of rectifier bridge, thus control the speed of motor.The major design core of the design is to replace 10K with single-chip microcomputer to give
End, thus realizes Real-time Collection handle level, according to level control the output of voltage realize the Based Intelligent Control to motor speed with
Regulation.
According to the basic demand that system is predetermined, native system to complete the Real-time Collection to handle level, further according to handle level
Position exports corresponding voltage and drives motor, again Real-time Collection main circuit actual output voltage, then judges to compare, simultaneously will be to event
Barrier processes accordingly, and the requirement to system is the highest.And the realization of whole system, need to use single-chip microcomputer and whole circuit
Power supply.
MSP430F169 is multiple functional, and power consumption is little.First, the supply voltage of MSP430 series monolithic uses 1.8
～3.6V voltage., MSP430 series monolithic is the mixed type single-chip microcomputer of super low-power consumption, is 280uA under activity pattern, standby mould
Formula is 1.1uA, thus when it runs under the Clock of 8MHz, the electric current of chip can be 200～about 400uA, and clock closes
The lowest power consumption of disconnected pattern only has 0.1uA.It has external equipment and convenient, flexible exploitation hands in extremely low power consumption, abundant sheet
Section.Secondly, MSP430 single-chip microcomputer is the single-chip microcomputer of 16, have employed reduced instruction set computer (RISC) structure, 125 instruction cycles.Many
In many depositors and sheet, data storage all can participate in multiple computing.Additionally, 430 have numerous modules and interrupt mode,
And, carry 12,8 tunnel ADC and 12,2 tunnels DAC module inside it, also two intervalometers of timerA and timerB,
TimerA has 3 tunnels, and timerB has 7 tunnels.It can realize timing, counting, pulsewidth modulation output voltage, also has capture lamp feature richness
Function.It also has point able to programme and puts down the supply voltage manager/monitor of detection.And for MSP430 series, not only
There is these internal module, also introduced Flash type program storage and JIAG technology, it is possible to achieve online programming.And its valency
Lattice also ratio is less expensive, just because of MSP430 single-chip microcomputer has these functions, MSP430 series of products to disclosure satisfy that native system.Comprehensively examine
Considering us selects (MSP430F169 single-chip microcomputer) as system MCU.
1.8v～3.6v of the running voltage of MSP430 single-chip microcomputer, it is desirable to provide the running voltage of 3.3v, liquid crystal display drives
Galvanic electricity pressure is also required to the voltage of 3.3v, and level voltage is 3.3v.Select the Switching Power Supply of LM2576.Switching Power Supply 1 is to utilize
Modern power electronics technology, controls the time ratio that switching tube turns on and off, and maintains a kind of power supply of regulated output voltage, opens
Close power supply to be typically made up of pulse width modulation (PWM) control IC and MOSFET.The effective work process of PWM Switching Power Supply is logical
Cross " copped wave ", i.e. the DC voltage of input is cut into amplitude and be equal to what the pulse voltage of input voltage amplitude realized.Pulse
Dutycycle is regulated by the controller of Switching Power Supply.Once input voltage is cut into ac square wave, and its amplitude just can be by becoming
Depressor is raised and lowered.The voltage group number of output just can be increased by increasing the Secondary Winding number of transformator.Last these
AC wave shape just obtains VD after rectifying and wave-filtering.
The voltage feedback circuit of linear power supply is to be operated in linear condition, and Switching Power Supply refers to the pipe for Voltage Cortrol
It is operated in saturated and by the i.e. on off state in district.From its main feature: linear power supply technology is the most ripe, cost of manufacture is relatively
Low, the highest degree of stability can be reached, ripple is the least, and does not has interference and noise that Switching Power Supply has, but its volume
Relatively for Switching Power Supply, the hugest, and input voltage range requirement height；And Switching Power Supply is in contrast.Switching Power Supply is
Comparing the newest technology, it has a lot of advantages, and its power consumption is little.Efficiency is more much higher than popular three terminal regulator, is preferable
Substitute.For in native system, through considering, power supply in native system uses Switching Power Supply, chip LM2576 and
AMS1117.LM2576 is monolithic integrated optical circuit, is provided that the various functions of step-down switching regulator, the input voltage of LM2576
Maximum can be 40v, can drive the load of 3A.Ensure under specifying input voltage and output load condition output voltage ±
4 errors, and oscillator frequency ± error of 10.Its work efficiency is internal up to 70～90 shakes containing fixed frequency
Swing device (52KHz) and benchmark manostat (1.23v), and there is perfect protection circuit, limit and Thermal shutdown circuit including electric current
Deng, utilize this device to have only to few peripheral components and just may make up efficient mu balanced circuit.
Native system is the change that real-time single-chip microcomputer is acquired locomotive handle level, further according to the difference of handle level,
Single-chip microcomputer exports 3 road PWM pwm voltages, controls silicon rectifier, and then the angle of flow@of control IGCT, controls locomotive three
Cut-offfing of bridge cut-off, it is achieved that control locomotive engine voltage, it is achieved that locomotive can only speed governing.
The present invention is started and fault mould by power module, one-chip computer module, reset key module, Liquid Crystal Module, Electrical key
Intend the compositions such as key-press module, handle level module, ADC collection output voltage module, output and display module.
Power supply uses LM2576 to produce 5v voltage, then produces 3.3v through AMS1117.The DC source obtained after over commutation
Accessing LM2576 by 1 foot of U2,1 foot connects 1 foot (C6 is non-electrolytic capacitor) of the positive pole (1 foot) of C5, C6 respectively.2 feet of U2
Position 5V power output end, connect D5 (6V Zener diode) 2 feet (negative pole), 4 feet of U2 are power supply feedback input end, wherein 2 feet, 4
Foot accesses inductance L1.2 feet of L1 are 5V power output end, connect 1 foot (C7 is non-electrolytic capacitor) of C7, the positive pole (1 foot) of C8.D7
For power work display lamp, R3 is current-limiting resistance.Wherein D7 positive pole (1 foot) connects 5V power supply, and 2 feet (negative pole) connect current-limiting resistance R3's
1 foot.The negative pole (2 foot) of C5,2 feet of C6, the 3 of U2,5 feet, the positive pole (1 foot) of D5, the negative pole (2 foot) of C8,2 feet of C7, the 2 of R3
The equal ground connection of foot.
Premenstrual two stage filter input chip, then export 5v voltage through 2 feet, D5 is stabilivolt.The selection of inductance L1 will basis
The parameters such as the output voltage of LM2576, maximum input power, maximum load current select.Calculate according to formula: B T=(Vin-
Vout) × Vout/Vin × 1000/f. selects inductance accordingly, and the design inductance value uses 100uH.The filtering of electric capacity also according to
The magnitude of voltage of output input calculates.
5v voltage out produces the voltage of 3.3v again through AMS1117,
AMS1117 regulator design is used for providing 1A to export electric current and operting differential pressure can as little as 1V.At maximum output current
Time, the pressure reduction of AMS1117 device ensures that maximum is less than 1.3V, and is gradually lowered with the reduction of load current.
Handle level 3.3v powers, and through 33 Europe dividing potential drops, makes the potentiometer change voltage from 0 to 2.5v adopt to single-chip microcomputer
Collection, because it is 2.5v that the ADC of single-chip microcomputer gathers voltage range.Handle level represents with light emitting diode when of collection.Root
According to handle level, single-chip microcomputer output PWM voltage output to be carried out Real-time Collection.According to handle level, single-chip microcomputer be exported
PWM voltage exports, and carries out Real-time Collection.By the voltage of output after electric capacity and resistance are filtered, tap into another the two of single-chip microcomputer
Individual ADC digital-to-analogue conversion is acquired.Compare at the voltage controlling output according to the data collected and handle level, it is achieved
The closed loop control of output voltage.It is so that system is more improved with stable.
The data that handle level collection is come in by single-chip microcomputer carry out data process after AD conversion and obtain magnitude of voltage accurately.
Again the output valve of the actual control voltage collected is compared with handle level, the rectifier bridge standard value, opened and event
Barrier shows in LCDs, also shows with lamp simultaneously, and when a certain bridge cut-off voltage rises, LED flashes,
Three bridge cut-off output full voltage, the most always light yellows.Glitch and major break down are simulated with two buttons.When handle level rises,
Single-chip microcomputer output controls voltage and also rises；When handle level declines, single-chip microcomputer output voltage also declines；Buzzer report during glitch
Alert, second and third bridge cut-off disconnects；When major break down, buzzer warning, three bridge cut-off break entirely.
Claims (5)
1. a locomotive engine speed governing analog based on MSP430, including MSP430 single-chip microcomputer, it is characterised in that: also include
Handle level acquisition module ADC0, first paragraph bridge voltage output module ADC1, second segment bridge voltage output module ADC2, the 3rd section
Bridge voltage output module ADC3, first paragraph bridge PWM output and LED, second segment bridge PWM output and LED, the 3rd section of bridge PWM
Output and LED and gather the liquid crystal display that voltage and three bridge cut-off are opened, described handle level acquisition module for showing
The signal output part of ADC0 is connected with the signal input part of MSP430 single-chip microcomputer, described first paragraph bridge voltage output module ADC1's
Signal output part is connected with the signal input part of MSP430 single-chip microcomputer, and the signal of described second segment bridge voltage output module ADC2 is defeated
Go out end be connected with the signal input part of MSP430 single-chip microcomputer, the signal output part of described 3rd section of bridge voltage output module ADC3 and
The signal input part of MSP430 single-chip microcomputer is connected, the signal output part of described MSP430 single-chip microcomputer and first paragraph bridge PWM output and
The signal input part of LED is connected, the signal output part of described MSP430 single-chip microcomputer and second segment bridge PWM output and LED
Signal input part is connected, the signal output part of described MSP430 single-chip microcomputer and the 3rd section of bridge PWM output and the signal input of LED
End is connected, and the described signal output part of MSP430 single-chip microcomputer is connected with the signal input part of liquid crystal display.
Locomotive engine speed governing analog based on MSP430 the most according to claim 1, it is characterised in that: also include event
Barrier interrupts and processing module, and the signal output part of described MSP430 single-chip microcomputer is connected with fault interrupting and processing module input.
Locomotive engine speed governing analog based on MSP430 the most according to claim 2, it is characterised in that: described handle
Level acquisition module ADC0 includes that the 19th resistance R19 and the 20th resistance R20,1 foot of described 19th resistance R19 meet 3.3V
Power supply, 2 feet of described 19th resistance R19 connect 1 foot of the 20th resistance R20, the 2 foot ground connection of the 20th resistance R20, and the 20th
3 feet of resistance R20 access the P6.0 mouth of MSP430 single-chip microcomputer.
4. according to the locomotive engine speed governing analog based on MSP430 described in any one in claim 1-3, its work
Method comprises the following steps:
Step 1: carry out Single Chip Microcomputer (SCM) program initialization: timer parameter setting, liquid crystal display screen initial state setting, timer interruption port are joined
Number is arranged and the definition of display lamp output port；
Step 2: input signal analog-to-digital conversion initiation parameter is arranged；
Step 3: whether inquiry meets system start-up condition, if meeting condition, enters corresponding interrupt routine condition query,
Otherwise program continues waiting for；
Step 4: interrupt condition is inquired about, and meets interrupt condition and then performs step 5, enters this program and first carry out looking into of interrupt condition
Ask, and perform to meet the interrupt routine of condition；Otherwise perform step 6 and carry out the signals collecting journey of handle level parameter value
Sequence；
Step 5: interruption subroutine；
Step 6: remove liquid crystal display screen and show；
Step 7: perform parameter acquisition in using subprogram, inquires the sampling number set of being in order and then performs to sample to show
Show subprogram, otherwise return to step 4.Continue the program operation that step 4 starts.
The method of work of locomotive engine speed governing analog based on MSP430 the most according to claim 4, its feature exists
Interrupt condition in described step 4 includes whether faulty and whether has button operation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183889B (en) * | 2016-08-01 | 2018-12-14 | 南京铁道职业技术学院 | Locomotive engine speed regulation simulator and its working method based on MSP430 |
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| CN104597879A (en) * | 2015-01-05 | 2015-05-06 | 柳州铁道职业技术学院 | Touch-screen control inverter speed regulation training system |
| CN204669255U (en) * | 2015-05-12 | 2015-09-23 | 江苏省扬州技师学院 | Battery locomotive governing system |
| US20150270777A1 (en) * | 2014-03-20 | 2015-09-24 | Nicholas P. Cowley | Master-slave digital voltage regulators |
| CN206067538U (en) * | 2016-08-01 | 2017-04-05 | 南京铁道职业技术学院 | Locomotive engine speed governing analog based on MSP430 |
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| CN106183889B (en) * | 2016-08-01 | 2018-12-14 | 南京铁道职业技术学院 | Locomotive engine speed regulation simulator and its working method based on MSP430 |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057964A (en) * | 2013-08-27 | 2014-09-24 | 北京机械设备研究所 | Driver console for mine electric locomotive |
| US20150270777A1 (en) * | 2014-03-20 | 2015-09-24 | Nicholas P. Cowley | Master-slave digital voltage regulators |
| CN104597879A (en) * | 2015-01-05 | 2015-05-06 | 柳州铁道职业技术学院 | Touch-screen control inverter speed regulation training system |
| CN204669255U (en) * | 2015-05-12 | 2015-09-23 | 江苏省扬州技师学院 | Battery locomotive governing system |
| CN206067538U (en) * | 2016-08-01 | 2017-04-05 | 南京铁道职业技术学院 | Locomotive engine speed governing analog based on MSP430 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183889B (en) * | 2016-08-01 | 2018-12-14 | 南京铁道职业技术学院 | Locomotive engine speed regulation simulator and its working method based on MSP430 |
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