CN108957197A - SCM Based rolling stock intelligent electric performance testing device and its control method - Google Patents
SCM Based rolling stock intelligent electric performance testing device and its control method Download PDFInfo
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- CN108957197A CN108957197A CN201810985921.6A CN201810985921A CN108957197A CN 108957197 A CN108957197 A CN 108957197A CN 201810985921 A CN201810985921 A CN 201810985921A CN 108957197 A CN108957197 A CN 108957197A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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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
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Abstract
The invention discloses SCM Based rolling stock intelligent electric performance testing device and its control method, which includes electric property detection module, feeler switch function selection input module, single-chip microcontroller, electric machine speed regulation control module, test power supply output module and test parameter output display module；The control method of the device includes: step 1: tester selects test function by test device panel；Step 2: electric property detection；Step 3: electric machine speed regulation control；Step 4: test parameter output display.The present invention combines practical, Universal electric performance test can be carried out to the common electric device such as contactor, relay used in vehicle, fault characteristic judgement is carried out to the basic classical insulation of device, the present invention can be used for device detection and the detection of the rail traffics enterprises such as theory, practice-training teaching and the locomotive depot of rail traffic class universities and colleges relevant speciality.
Description
Technical field
The present invention relates to rolling stock electric performance test fields, and in particular to SCM Based rolling stock intelligence electricity
Gas performance testing device and its control method.
Background technique
In the course of work of rolling stock, city rail vehicle and emu vehicle, the electric devices such as contactor, relay exist
Serve in each work system such as Traction Drive, the braking of train key.Because system work is frequently, these devices
Spoilage is also higher.The present invention combines reality, can electrical device common to the contactor used in above-mentioned vehicle, relay etc.
Part carries out Universal electric performance test, carries out fault characteristic judgement to the basic classical insulation of device.At present in each track
For operation enterprise without the device for carrying out Universal electric Characteristics Detection to contactor/relay, the present invention can be used for rail traffic class
The device detection of the rail traffics enterprise such as theory, practice-training teaching and locomotive depot of universities and colleges' relevant speciality and detection.
Summary of the invention
To realize the above-mentioned technical purpose, the technical scheme adopted by the invention is as follows:
SCM Based rolling stock intelligent electric performance testing device, including electric property detection module, feeler switch function
Input module, single-chip microcontroller, electric machine speed regulation control module, test power supply output module and test parameter is selected to export display module；
Electric property detection module, test power supply output module and feeler switch function selection input module are connect with single-chip microcontroller, monolithic
Machine is connect with electric machine speed regulation control module and test parameter output display module respectively；Electric property detection module includes main order electricity
Device test, relay parameter test, contactor parameter testing, electrothermal relay parameter testing and time relay parameter testing are surveyed
Examination parameter output display module includes that master control electrical apparatus test parameter is shown, relay ginseng test digital display shows, contactor test parameter
Display, electrothermal relay test parameter is shown and time relay test parameter is shown；Electric property detection module is with P6 module
Core component, P6-1 are connected with P6-3, connect K1-5 foot, and for the power input pin for testing power supply, P6-2 is connected with P6-9
It connects, for output pin of the test power supply after overcurrent fuse, connects busy relay/contactor, power supply is examined by P1.6 mouthfuls of single-chip microcontroller
Working power value is surveyed, P6-4 is connected with P6-5 with P6-7, is grounded；P6-6 connects the test input of master control electrical apparatus, when main order electricity
When device works, power supply drives sound light alarming circuit, sending sound, visual alarm, P6-7 relay/contactor by master control electrical apparatus
Contact test input contact 1, ground connection, P6-8 relay/contacts of contactor are attracted test input contact 2, work as relay-contactor
After actuation, contact is attracted ground connection, and to P2.4 mouthfuls of input low level signals of single-chip microcontroller, the triggering letter of testing time is attracted for contact
Number, P6-9 contact relay/contactor coil operating voltage input point, P6-10 connects electrothermal relay coil working voltage input point,
P6-11 electrothermal relay tests input point, and P6-12 heat protects relay contact analog control system input point.
Technical solution as a further improvement of that present invention, electric machine speed regulation control module is with the choosing of RS485 and MAX232 signal
Selecting switch P3, patchplug P4, chip U2 and chip U3 is core component, when P3-6 meets P3-4, and P3-5 meets P3-3, monolithic
Machine is to the operation level of motor speed control circuit output RS485, and when P3-2 meets P3-4, and P1-5 meets P3-3, single-chip microcontroller is to motor tune
The operation level of fast circuit output MAX232, chip U2 are SP485R, and chip U3 is MAX232.
Technical solution as a further improvement of that present invention, feeler switch function select input module using module P7 as core member
Device, P7-1 are 1 foot of test job indicator light, and P7-2 is 2 foot of test job indicator light, meet power supply VCC, P7-3 is reset key
1 foot connects 9 foot of single-chip microcontroller, and P7-4 is 2 foot of reset key, meets power supply VCC by R13 resistance, and P7-5 is that cursor moves up key, is connect
1 foot of single-chip microcontroller, P7-6 are that cursor moves down key, connect 2 foot of single-chip microcontroller, and P7-7 is that function confirms key, meet 3 foot of single-chip microcontroller, P7-8
Key is moved to right for cursor function, connects 4 foot of single-chip microcontroller, P7-9 is experiment key, connects 5 foot of single-chip microcontroller, and P7-10 is to connect keys of single chip microcomputer
Common ground end.
Technical solution as a further improvement of that present invention, test power supply output module with solid-state relay Y2, solid-state after
Electric appliance Y3 and power outlet P1 is core component, and Y2-1 is power supply solid-state relay actuating coil cathode, passes through single-chip microcontroller
P2.1 mouthfuls provide working signal, control whether the pin is grounded work, and Y2-2 is power supply solid-state relay actuating coil anode, connect
Working power VCC, Y2-3 connect P1-3 pin, are 220V fixed power source output end, connect contactor/relay coil test contact,
Y2-4 connects P1-1 pin, is 220V fixed power source input terminal, connects contactor/relay coil test contact, and Y3-1 is solid for power supply
State relay actuating coil cathode provides working signal by P3.4 mouthfuls of single-chip microcontroller, controls whether the pin is grounded work, Y2-2
For power supply solid-state relay actuating coil anode, working power VCC is met, Y2-3 connects P1-6 pin, exports for 220V regulated power supply
End connects contactor/relay coil test contact, and it is 220V regulated power supply input terminal that Y2-4, which connects P1-4 pin, connect contactor/
Relay coil tests contact, and P1-3 is fixed 220V power output end, and P1-6 is adjustable 220V power output end, power supply it is defeated
It is selected out by single-chip microcontroller by selection switch accordingly, the driving of fixed 220V power supply is exported by the port P2.1 of single-chip microcontroller
Signal is exported the driving signal of adjustable 220V power supply by the port single-chip microcontroller P3.4.
The control method of SCM Based rolling stock intelligent electric performance testing device, comprising the following steps:
Step 1: tester selects test function by test device panel；
Step 2: electric property detection, including master control electrical apparatus test, relay parameter test, contactor parameter testing, hot relay
Device parameter testing and time relay parameter testing；
Step 3: test parameter output display, including master control electrical apparatus test parameter is shown, relay ginseng test digital display shows, contacts
Device test parameter is shown, electrothermal relay test parameter is shown and time relay test parameter is shown；
Step 4: electric machine speed regulation control.
Technical solution as a further improvement of that present invention, the test of master control electrical apparatus described in step 2 is by opening any main order
It closes contact and accesses terminal, it is intuitive to realize contact on-off, the normally opened of electric elements is detected by acousto-optic hint, normally-closed contact works
Characteristic；Relay parameter test and contactor parameter testing pass through measuring relay/contactor operating current voltage, specified work
Make the multinomial electric parameters such as voltage and current, release voltage electric current, specified contact load；Electrothermal relay parameter testing by by heat after
The main heater element of electric appliance is connected in series to, and the current-limiting resistance of 200 Ω of internal series-connection, and main heater element is connect
1,2 ends of electrothermal relay, alternating current ammeter is series in circuit, and normally-closed contact both ends are respectively connected to " hot relay contactor "
3,4 end；Time relay parameter testing is by being respectively connected on electrical tester " relay for time relay normally open contact both ends
1,2 both ends of device ", coil both ends are respectively connected to the 3 of " relay ", 4 ends.
Technical solution as a further improvement of that present invention, the main order electricity that master control electrical apparatus test parameter shown in step 3 is shown
Device contact working performance is shown by sound, light；Relay ginseng test digital display shows to be shown by LCD；Contactor test parameter is shown
It is shown by LCD；Electrothermal relay test parameter is shown to be shown by LCD；Time relay test parameter shows aobvious by LCD
Show.
Technical solution as a further improvement of that present invention, the control of electric machine speed regulation described in step 4 control frequency conversion by serial ports
The output of device controls motor operation.
The invention has the benefit that the present invention combines reality, it can be to contactor, the relay etc. used in the car
Common electric device carries out Universal electric performance test, carries out fault characteristic judgement to the basic classical insulation of device.Mesh
The preceding device for carrying out Universal electric Characteristics Detection to contactor/relay in each track operation enterprise nothing, the present invention can be used for
The device detection of the rail traffics enterprises such as theory, practice-training teaching and the locomotive depot of rail traffic class universities and colleges relevant speciality and detection.
The present invention use macrocrystalline science and technology production single-chip microcontroller STC12C5A60S2 single-chip microcontroller, be high speed, low-power consumption, it is superpower it is jamproof newly
8051 single-chip microcontroller of a generation, instruction code completely compatible traditional 8051, but fast 8-12 times of speed, it is internally integrated MAX810 Special reset
Circuit, 2 road PWM, 8 road 10-bit high speed A/D convert (250K/S), for motor control, strong jamming occasion.
Detailed description of the invention
Fig. 1 is design general diagram of the invention；Fig. 2 is electric property detection circuit figure of the invention；Fig. 3 is of the invention
Motor speed control signal output circuit figure；Fig. 4 is function key input circuit figure of the invention；Fig. 5 is that test power supply of the invention is defeated
Circuit diagram out；Fig. 6 is system main flow chart of the invention；Fig. 7 is test device panel layout of the invention；Fig. 8 is this hair
Bright master control electrical apparatus test schematic diagram；Fig. 9 is that master control electrical apparatus of the invention tests circuit operation principle schematic diagram；Figure 10 is this hair
Bright relay/contactor wiring schematic diagram；Figure 11 is that relay of the invention/contactor basic parameter tests circuit operation principle
Figure；Figure 12 is that relay of the invention/contactor characterisitic parameter tests circuit fundamental diagram；Figure 13 is relay of the invention/connect
Tentaculum characterisitic parameter test flow chart；Figure 14 is the hot test flow chart of electrothermal relay of the invention；Figure 15 is heat of the invention
Relay wiring figure；Figure 16 is time relay wiring diagram of the invention；Figure 17 is time relay characteristic test of the invention
Flow chart；Figure 18 is way circuit schematic diagram of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated below according to Fig. 1 to Figure 18:
Referring to Fig. 1 and Figure 18, (K1-5 meets the L of toggle switch common end in figure, and K1-2 meets the N of toggle switch common end, switch
Into connecing in K1-5, the going out of switch connect FU2 into), SCM Based rolling stock intelligent electric performance testing device, including
Electric property detection module, single-chip microcontroller STC125A60S2, electric machine speed regulation control module, is surveyed feeler switch function selection input module
It tries power supply output module and test parameter exports display module；Electric property detection module, test power supply output module and test
Key function selection input module is connect with single-chip microcontroller, and single-chip microcontroller is aobvious with electric machine speed regulation control module and test parameter output respectively
Show that module connects；Electric property detection module includes master control electrical apparatus test, relay parameter test, contactor parameter testing, heat
Relay parameter test and time relay parameter testing, test parameter output display module include that master control electrical apparatus test parameter is aobvious
Show, digital display shows the test of relay ginseng, contactor test parameter is shown, electrothermal relay test parameter is shown and time relay test
Parameter is shown；
Referring to fig. 2, using P6 module as core component, P6-1's electric property detection module is connected with P6-3, connects K1-5 foot, is
The power input pin of power supply is tested, P6-2 is connected with P6-9, for output pin of the test power supply after overcurrent fuse, connects survey
Relay/contactor is tried, power supply is connected by P1.6 mouthfuls of detection working power values of single-chip microcontroller, P6-4 with P6-5 with P6-7, is grounded；
P6-6 connects the test input of master control electrical apparatus, and when master control electrical apparatus work, power supply drives sound light alarming circuit by master control electrical apparatus,
Sending sound, visual alarm, P6-7 relay/contacts of contactor test input contact 1, ground connection, P6-8 relay/contactor touching
Point is attracted test input contact 2, and after relay-contactor is attracted, contact is attracted ground connection, to the low electricity of P2.4 mouthfuls of single-chip microcontroller inputs
Ordinary mail number is attracted the trigger signal of testing time, P6-9 contact relay/contactor coil operating voltage input point, P6- for contact
10 connect electrothermal relay coil working voltage input point, and P6-11 electrothermal relay tests input point, and it is defeated that P6-12 heat protects relay contact analog control system
Access point.
Referring to Fig. 3, electric machine speed regulation control module is with RS485 and MAX232 signal selecting switch P3, patchplug P4, chip
U2 and chip U3 is core component, and when P3-6 meets P3-4, and P3-5 meets P3-3, single-chip microcontroller is exported to motor speed control circuit
The operation level of RS485, when P3-2 meets P3-4, and P1-5 meets P3-3, work of the single-chip microcontroller to motor speed control circuit output MAX232
Make level, chip U2 is SP485R, and chip U3 is MAX232.
Referring to fig. 4, feeler switch function selects input module using module P7 as core component, and P7-1 is test job instruction
1 foot of lamp, P7-2 are 2 foot of test job indicator light, meet power supply VCC, and P7-3 is 1 foot of reset key, connect 9 foot of single-chip microcontroller, P7-4 is
2 foot of reset key meets power supply VCC by R13 resistance, and P7-5 is that cursor moves up key, connects 1 foot of single-chip microcontroller, and P7-6 is under cursor
Key is moved, 2 foot of single-chip microcontroller is connect, P7-7 is that function confirms key, connects 3 foot of single-chip microcontroller, and P7-8 is that cursor function moves to right key, order
4 foot of piece machine, P7-9 are experiment key, connect 5 foot of single-chip microcontroller, and P7-10 is to connect keys of single chip microcomputer common ground end.
Referring to Fig. 5, power supply output module is tested using solid-state relay Y2, solid-state relay Y3 and power outlet P1 as core
Component, Y2-1 are power supply solid-state relay actuating coil cathode, provide working signal by P2.1 mouthfuls of single-chip microcontroller, control the pipe
Whether foot is grounded work, and Y2-2 is power supply solid-state relay actuating coil anode, meets working power VCC, and Y2-3 connects P1-3 pin,
For 220V fixed power source output end, contactor/relay coil test contact is connect, Y2-4 connects P1-1 pin, for the fixed electricity of 220V
Source input terminal connects contactor/relay coil test contact, and Y3-1 is power supply solid-state relay actuating coil cathode, passes through list
P3.4 mouthfuls of piece machine provide working signal, control the pin and whether are grounded work, Y2-2 be power supply solid-state relay actuating coil just
Pole meets working power VCC, and Y2-3 connects P1-6 pin, is 220V regulated power supply output end, connects contactor/relay coil test
Contact, Y2-4 connect P1-4 pin, are 220V regulated power supply input terminal, connect contactor/relay coil test contact, P1-3 is solid
Determine 220V power output end, P1-6 is adjustable 220V power output end, and the output of power supply is opened by single-chip microcontroller by selection accordingly
It puts capable selection into, the driving signal of fixed 220V power supply is exported by the port P2.1 of single-chip microcontroller, is exported by the port single-chip microcontroller P3.4
The driving signal of adjustable 220V power supply.
Referring to Fig. 6, the control method of SCM Based rolling stock intelligent electric performance testing device, including it is following
Step:
Step 1: referring to Fig. 7, tester selects test item by test device panel；
Step 2: electric property detection, including master control electrical apparatus test, relay parameter test, contactor parameter testing, hot relay
Device parameter testing and time relay parameter testing；
Step 3: test parameter output display, including master control electrical apparatus test parameter is shown, relay ginseng test digital display shows, contacts
Device test parameter is shown, electrothermal relay test parameter is shown and time relay test parameter is shown；
Step 4: electric machine speed regulation control is controlled the output of frequency converter by serial ports, controls motor operation.
Referring to Fig. 8 and Fig. 9, master control electrical apparatus test is intuitive to realize touching by the way that terminal is accessed in any control switch contact
Point on-off, normally opened, the normally-closed contact working characteristics of electric elements are detected by acousto-optic hint；Operating procedure the following is switch
Contact both ends are respectively connected to 1,2 ends of " on-off " of tester:
1. switch connection, indicator light is bright, and buzzer issues work prompt tone；
2. switch disconnects, indicator light off, and buzzer does not issue work prompt tone；
Referring to Figure 10, Figure 11, Figure 12 and Figure 13, relay parameter test and contactor parameter testing pass through measuring relay/connect
The multinomial electric parameters such as the operating current voltage of tentaculum, rated operational voltage electric current, release voltage electric current, specified contact load；
Relay/contactor normally opened contact both ends are respectively connected to the 1 of " relay contactor ", 2 ends, coil both ends be respectively connected to " after
3,4 ends of electric appliance/contactor "；
Operating procedure is as follows:
1. coil is attracted electrical parameters measure:
By the tester lower left corner power supply selection beat 220V " pressure regulation " export, while will exchange regulated power supply voltage be adjusted to it is minimum；
It into controller master control interface, selects " relay contactor test ", tests options interface into relay contactor；Selection " is attracted
Test " option, presses " confirmation ", into test interface is attracted, presses " test " and confirms afterwards, start to test.
Pressure regulator is adjusted, output voltage regulator voltage is slowly increased, " real-time voltage " and " electricity in real time on display screen
Stream " increases with the increase of regulator output voltage.When coil is in close to actuation but is not attracted, at the electric current in circuit
In maximum.Continue to increase output voltage, relay is attracted under a certain voltage, and display screen intuitively shows the actuation electricity of relay
Pressure and operating current.After circuit stability, main circuit automatically powers off the safety to ensure tester, but display screen keeps display.
2. releasing winding electrical parameters measure:
It after the completion of coil is attracted electrical parameters measure, not power off, return to a upper main interface, selection " discharges and tests " option,
" confirmation " key is pressed, into the test interface of release test, starts to test after pressing " test " key.
Pressure regulator is slowly adjusted, coil voltage is gradually decreased, display " real-time voltage " and " real-time current " is real-time on screen
The voltage and current of main circuit is monitored, until contact disconnects, controller collect contacts disconnect instantaneous voltage and electric current, are shown in aobvious
Display screen.
3. contact action delay pickup time tests:
Power supply selection in the testing stand lower left corner is beaten and is exported in 220V " fixation "；Into controller master control interface, " relay contact is selected
Device test " tests options interface into relay contactor；" pickup time " option is selected, " confirmation " key is pressed, presses " test "
Confirm after key, coil is powered, and contact movement, main circuit powers off after actuation, it is ensured that experimenter's safety.
4. contact action delay release time tests:
Power supply selection in the testing stand lower left corner is beaten and is exported in 220V " fixation "；Into controller master control interface, " relay contact is selected
Device test " tests options interface into relay contactor；" release time " option is selected, " confirmation " key is pressed, presses " test "
Confirm after key, coil blackout, contact movement, main circuit powers off after actuation, it is ensured that experimenter's safety.
Referring to Figure 14 and Figure 15, electrothermal relay parameter testing by by the main heater element of electrothermal relay in series
Connection, and the current-limiting resistance of 200 Ω of internal series-connection, main heater element is connect at 1,2 ends of electrothermal relay, by alternating current ammeter
It is series in circuit, normally-closed contact both ends are respectively connected to 3,4 ends of " hot relay contactor "；
Operating procedure is as follows: power supply selection in the testing stand lower left corner being beaten and is exported in 220V " pressure regulation ", is shown into controller master control
Interface selects " electrothermal relay test ", while pressing " test " key, into Preparatory work of experiment.
" RESET " key on electrothermal relay is pressed, resets electrothermal relay, while adjusting the current calibration on electrothermal relay
Knob presses " confirmation " key after adjusting test parameter, into trystate.Confirm after pressing " test " key, adjust pressure regulator,
Alternating current ammeter is observed simultaneously, so that the electric current for flowing through circuit is greater than the setting valve of electrothermal relay, but be no more than setting value.Wait after
Electric appliance acts, and can hear that electrothermal relay issues a sound of " clatter " after about 30s, at this time the normally opened contact closure of electrothermal relay,
Normally-closed contact disconnects, while the alarm lamp on testing stand is bright, buzzer call, shows the movement of screen display electrothermal relay
Current value.
Referring to Figure 16 and Figure 17, time relay normally open contact both ends by being respectively connected to by time relay parameter testing
1,2 both ends of " relay ", coil both ends are respectively connected to the 3 of " relay ", 4 ends on electrical tester.By the tester lower left corner
Power supply selection is beaten to be exported in 220V " fixation ", into controller master control interface, is selected " time relay test " option, is pressed
" confirmation " key, into test interface.
Operating procedure is as follows:
1. on-delay time test:
Into after test interface, selection " delay is attracted " test item is pressed " confirmation " key, is confirmed after pressing " test " key, enters
Time relay delay is attracted test item.Be powered after a period of time, time relay delay is attracted, show on display screen after
Electric appliance is delayed pickup time.
2. power cut off delay time test:
After the completion of " on-delay time test ", directly presses " turning over " or " under turn over " key and return to a upper main interface, and select
" delay release " test option confirms, coil powers off immediately, but relay contact will not disconnect immediately after pressing " test " key,
It is disconnected after delay a period of time.Until time relay main contacts disconnects, display screen shows that main contacts is delayed turn-off time.
The master control electrical apparatus contact working performance that master control electrical apparatus test parameter is shown is shown by sound, light；Relay ginseng test
Digital display shows to be shown by LCD；Contactor test parameter is shown to be shown by LCD；Electrothermal relay test parameter shows aobvious by LCD
Show；Time relay test parameter is shown to be shown by LCD.
The present invention use macrocrystalline science and technology production single-chip microcontroller STC12C5A60S2 single-chip microcontroller, be high speed, low-power consumption, it is superpower resist
8051 single-chip microcontroller of a new generation of interference, instruction code completely compatible traditional 8051, but fast 8-12 times of speed, it is internally integrated MAX810
Special reset circuit, 2 road PWM, 8 road 10-bit high speed A/D convert (250K/S), for motor control, strong jamming occasion.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention should be regarded as protection of the invention
Range.
Claims (8)
1. SCM Based rolling stock intelligent electric performance testing device, it is characterized in that: include electric property detection module,
Feeler switch function selects input module, single-chip microcontroller, electric machine speed regulation control module, test power supply output module and test parameter output
Display module；The electric property detection module, test power supply output module and feeler switch function selection input module with list
The connection of piece machine, the single-chip microcontroller are connect with electric machine speed regulation control module and test parameter output display module respectively；It is described electrical
Performance detection module include master control electrical apparatus test, relay parameter test, contactor parameter testing, electrothermal relay parameter testing and
Time relay parameter testing, the test parameter output display module include that master control electrical apparatus test parameter is shown, relay is joined
Digital display shows, contactor test parameter is shown, electrothermal relay test parameter is shown and time relay test parameter is shown for test；Institute
Electric property detection module is stated using P6 module as core component, P6-1 is connected with P6-3, K1-5 foot is connect, for test power supply
Power input pin, P6-2 are connected with P6-9, for output pin of the test power supply after overcurrent fuse, connect busy relay/
Contactor, power supply are connected by P1.6 mouthfuls of detection working power values of single-chip microcontroller, P6-4 with P6-5 with P6-7, ground connection；P6-6 meets master
The test input for enabling electric appliance, when master control electrical apparatus work when, power supply by master control electrical apparatus driving sound light alarming circuit, sending sound,
Visual alarm, P6-7 relay/contacts of contactor test input contact 1, ground connection, P6-8 relay/contacts of contactor are attracted
Test input contact 2, after relay-contactor is attracted, contact is attracted ground connection, to P2.4 mouthfuls of input low level signals of single-chip microcontroller,
The trigger signal of testing time, P6-9 contact relay/contactor coil operating voltage input point are attracted for contact, P6-10 connects heat
Relay coil operating voltage input point, P6-11 electrothermal relay test input point, and P6-12 heat protects relay contact analog control system input point.
2. SCM Based rolling stock intelligent electric performance testing device according to claim 1, it is characterized in that: institute
Electric machine speed regulation control module is stated using RS485 and MAX232 signal selecting switch P3, patchplug P4, chip U2 and chip U3 as core
Heart component, when P3-6 meets P3-4, and P3-5 meets P3-3, single-chip microcontroller exports the operation level of RS485 to motor speed control circuit, when
P3-2 meets P3-4, and when P1-5 meets P3-3, single-chip microcontroller exports the operation level of MAX232 to motor speed control circuit, and the chip U2 is
SP485R, the chip U3 are MAX232.
3. SCM Based rolling stock intelligent electric performance testing device according to claim 2, it is characterized in that: institute
Stating feeler switch function selects input module using module P7 as core component, and P7-1 is 1 foot of test job indicator light, and P7-2 is to survey
2 foot of work light is tried, power supply VCC is met, P7-3 is 1 foot of reset key, connects 9 foot of single-chip microcontroller, and P7-4 is 2 foot of reset key, is led to
It crosses R13 resistance and meets power supply VCC, P7-5 is that cursor moves up key, connects 1 foot of single-chip microcontroller, and P7-6 is that cursor moves down key, connects single-chip microcontroller
2 feet, P7-7 are that function confirms key, connect 3 foot of single-chip microcontroller, and P7-8 is that cursor function moves to right key, connect 4 foot of single-chip microcontroller, P7-9 is
Key is tested, 5 foot of single-chip microcontroller is connect, P7-10 is to connect keys of single chip microcomputer common ground end.
4. SCM Based rolling stock intelligent electric performance testing device according to claim 3, it is characterized in that: institute
Test power supply output module is stated using solid-state relay Y2, solid-state relay Y3 and power outlet P1 as core component, Y2-1 is
Power supply solid-state relay actuating coil cathode provides working signal by P2.1 mouthfuls of single-chip microcontroller, controls whether the pin is grounded work
Make, Y2-2 is power supply solid-state relay actuating coil anode, meets working power VCC, and Y2-3 connects P1-3 pin, for the fixed electricity of 220V
Source output terminal, connects contactor/relay coil test contact, and Y2-4 connects P1-1 pin, is 220V fixed power source input terminal, connects
Tentaculum/relay coil tests contact, and Y3-1 is power supply solid-state relay actuating coil cathode, is provided by P3.4 mouthfuls of single-chip microcontroller
Working signal, controls whether the pin is grounded work, and Y2-2 is power supply solid-state relay actuating coil anode, connects working power
VCC, Y2-3 connect P1-6 pin, are 220V regulated power supply output end, connect contactor/relay coil test contact, and Y2-4 meets P1-
4 pins are 220V regulated power supply input terminal, connect contactor/relay coil test contact, and P1-3 is fixed 220V power supply output
End, P1-6 are adjustable 220V power output ends, and the output of power supply is selected by single-chip microcontroller by selection switch accordingly, by list
The port P2.1 of piece machine exports the driving signal of fixed 220V power supply, and the drive of adjustable 220V power supply is exported by the port single-chip microcontroller P3.4
Dynamic signal.
5. the control method of SCM Based rolling stock intelligent electric performance testing device according to claim 1,
It is characterized in that: the following steps are included:
Step 1: tester selects test function by test device panel；
Step 2: electric property detection, including master control electrical apparatus test, relay parameter test, contactor parameter testing, hot relay
Device parameter testing and time relay parameter testing；
Step 3: test parameter output display, including master control electrical apparatus test parameter is shown, relay ginseng test digital display shows, contacts
Device test parameter is shown, electrothermal relay test parameter is shown and time relay test parameter is shown；
Step 4: electric machine speed regulation control.
6. the control method of SCM Based rolling stock intelligent electric performance testing device according to claim 5,
It is characterized in that: the test of master control electrical apparatus described in step 2 intuitively realizes contact by the way that terminal is accessed in any control switch contact
On-off detects normally opened, the normally-closed contact working characteristics of electric elements by acousto-optic hint；The relay parameter test and contact
Device parameter testing by measuring relay/contactor operating current voltage, rated operational voltage electric current, release voltage electric current,
The multinomial electric parameters such as specified contact load；The electrothermal relay parameter testing by by the main heater element of electrothermal relay to go here and there
The mode of connection connects, and the current-limiting resistance of 200 Ω of internal series-connection, and main heater element is connect at 1,2 ends of electrothermal relay, will be handed over
Galvanic electricity flow table is series in circuit, and normally-closed contact both ends are respectively connected to 3,4 ends of " hot relay contactor "；The time relay
Time relay normally open contact both ends by being respectively connected on electrical tester 1,2 both ends of " relay ", line by parameter testing
Circle both ends are respectively connected to the 3 of " relay ", 4 ends.
7. the control method of SCM Based rolling stock intelligent electric performance testing device according to claim 5,
It is characterized in that: the master control electrical apparatus contact working performance that master control electrical apparatus test parameter described in step 3 is shown is shown by sound, light；Institute
Relay ginseng test digital display is stated to show and show by LCD；The contactor test parameter is shown to be shown by LCD；The hot relay
Device test parameter is shown to be shown by LCD；The time relay test parameter is shown to be shown by LCD.
8. the control method of SCM Based rolling stock intelligent electric performance testing device according to claim 5,
It is characterized in that: the control of electric machine speed regulation described in step 4 controls the output of frequency converter by serial ports, motor operation is controlled.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624901A (en) * | 2019-02-28 | 2020-09-04 | 施耐德电器工业公司 | Control method and control device |
| CN113703388A (en) * | 2021-09-07 | 2021-11-26 | 广州电力机车有限公司 | Multifunctional locomotive test box |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208833846U (en) * | 2018-08-28 | 2019-05-07 | 南京铁道职业技术学院 | SCM Based rolling stock intelligent electric performance testing device |
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| CN208833846U (en) * | 2018-08-28 | 2019-05-07 | 南京铁道职业技术学院 | SCM Based rolling stock intelligent electric performance testing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624901A (en) * | 2019-02-28 | 2020-09-04 | 施耐德电器工业公司 | Control method and control device |
| CN111624901B (en) * | 2019-02-28 | 2024-03-01 | 施耐德电器工业公司 | Control method and control device |
| CN113703388A (en) * | 2021-09-07 | 2021-11-26 | 广州电力机车有限公司 | Multifunctional locomotive test box |
| CN113703388B (en) * | 2021-09-07 | 2023-08-22 | 广州电力机车有限公司 | Multifunctional locomotive test box |
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