CN108710075A - A kind of train insulation wireless transmission automatic tester - Google Patents
A kind of train insulation wireless transmission automatic tester Download PDFInfo
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- CN108710075A CN108710075A CN201810764824.4A CN201810764824A CN108710075A CN 108710075 A CN108710075 A CN 108710075A CN 201810764824 A CN201810764824 A CN 201810764824A CN 108710075 A CN108710075 A CN 108710075A
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- Prior art keywords
- singlechip microcontroller
- train
- voltage
- module
- microcontroller
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Classifications
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
- G01R19/2509—Details concerning sampling, digitizing or waveform capturing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
Abstract
It insulate the invention discloses a kind of train and is wirelessly transferred automatic tester, including accumulator and singlechip microcontroller, the output end of accumulator is connected to boost module, the output end of singlechip microcontroller is connected to boost module, the output end of boost module is connected to singlechip microcontroller by sampling test circuit, and singlechip microcontroller is also associated with relay array.Solve the problems, such as megger, electronic type megameter is used to measure in the prior art that train insulating efficiency is low, accuracy rate is low.
Description
【Technical field】
The invention belongs to technical field of automation, and in particular to a kind of train insulation wireless transmission automatic tester.
【Background technology】
China railways car number and mileage number are worldwide stood out with ownership, and passenger train is that China is most heavy
The vehicles wanted.The insulation fault of passenger train seriously affects people life property safety, grasps passenger train fortune in real time
State of insulation when row is particularly important.China mainly uses the insulation failure detection means of passenger train megaohm at present
Table.Numerical value is swung big when megameter detects insulation resistance, is directly resulted in different people and is recorded as different results, artificial factor shadow
Sound is very big.In addition all results will be by tester's hand-kept, and arbitrariness is also big, it is difficult to realize good macro-management, give
The safe operation of passenger train brings hidden danger.
Therefore, for guarantee railway safety, there is an urgent need to research and develop the country to be directed to car with independent intellectual property right
Insulation detection device and management system.
【Invention content】
It insulate the object of the present invention is to provide a kind of train and is wirelessly transferred automatic tester, to solve to use in the prior art
Megger, electronic type megameter measure the problem that train insulating efficiency is low, accuracy rate is low.
The technical solution used in the present invention is：A kind of train insulation wireless transmission automatic tester, including accumulator and
The output end of singlechip microcontroller, accumulator is connected to boost module, and the output end of singlechip microcontroller is connected to boosting
The output end of module, boost module is connected to singlechip microcontroller by sampling test circuit, and singlechip microcontroller also connects
It is connected to relay array；
Wherein, test circuit is sampled, five p-wires are connected with, for testing insulating resistance value by p-wire, and will
Resistance value is converted to voltage value, retransmits to singlechip microcontroller；
Relay array, for testing multi-group data；
Accumulator, for providing voltage for boost module；
Boost module, the voltage for receiving accumulator transmission；And according to the instruction of singlechip microcontroller, to receiving
Voltage boost, then the voltage after raising is sent to sampling test circuit；
Singlechip microcontroller boosts to the voltage received for controlling boost module；It is additionally operable to receive and locate
The voltage that reason sampling test circuit is sent.
Further, sampling test circuit includes first resistor R1, and one end of first resistor R1 is connected to boost module
Anode, the other end are connected to the cathode of boost module by second resistance R2, and one end of zero resistance R0 is connected to boost module
Anode, the other end is connected to the cathode of boost module by xth resistance Rx.
Further, relay array includes eight triodes being set up in parallel, and the emitter of each triode is grounded,
The base stage of each triode is respectively connected with resistance, the port for being connect with train power interface is provided on each resistance, often
The collector of a triode is connected to 12V voltages by corresponding relay；Port, for connect train the ends DC600V+,
The ends DC600V-, ground wire, the ends U, the ends V, the ends W, N-terminal and car shell.
Further, singlechip microcontroller also with key operation module and screen display data interaction；Button operation
Module, for sending instructions to singlechip microcontroller, with the action of control single chip computer microcontroller；Screen display
Device, the working condition for showing detector, information and data.
Further, also data connection is useful for for detection data being transmitted to the nothing of server singlechip microcontroller respectively
Line transmission module, and the USB unloading modules for historical data transfer preservation.
Further, singlechip microcontroller also with Temperature Humidity Sensor data interaction；
Temperature Humidity Sensor is used for the detection of real-time tracking temperature and humidity, judges test result according to humiture environment
It is whether qualified, and the temperature and humidity data detected are sent to singlechip microcontroller.
Further, further include power module, accumulator is connected to singlechip microcontroller, power supply mould by power module
Block is used to the voltage of accumulator being converted into the required voltage of singlechip microcontroller, and provides electricity for singlechip microcontroller
Source.
The invention has the advantages that：Test automation degree is high, primary connection, a button, and primary test can
Show 10 groups of data, repetitive operation when avoiding using megger, digital megohmmeter；Included decision-making function, according to humidity value
Whether automatic decision tests insulation values qualified；Band USB flash disk unloading function, facilitates the transfer of historical data to preserve；Included wireless transmission
Function, test data wirelessly upload, and the ends PC are received by network, transmit test result whenever and wherever possible, convenient for data consumer's
It consults and manages.
【Description of the drawings】
Fig. 1 is a kind of overall design drawing of train insulation wireless transmission automatic tester proposed by the present invention；
Fig. 2 is boost module and sampling test electricity in a kind of train insulation wireless transmission automatic tester proposed by the present invention
Road schematic diagram；
Fig. 3 is that a kind of train insulation wireless transmission automatic tester repeat circuit array test circuit proposed by the present invention is former
Manage figure one；
Fig. 4 is that a kind of train insulation wireless transmission automatic tester repeat circuit array test circuit proposed by the present invention is former
Manage figure two.
Wherein, 1. sampling test circuit, 2. relay arrays, 3. boost modules, 4. accumulators, 5. power modules, 6. press
Key operation module, 7. screen displays, 8. singlechip microcontrollers, 9. wireless transport modules, 10.USB unloading modules, 11. temperature
Humidity sensor.
【Specific implementation mode】
The structural principle and operation principle of the present invention are described further below in conjunction with the accompanying drawings.
One, it insulate the present invention provides a kind of train and is wirelessly transferred automatic tester, as shown in Figure 1, a kind of train insulate
It is wirelessly transferred automatic tester, including accumulator 4 and singlechip microcontroller 8, the output end of accumulator are connected to boost module
3, the output end of singlechip microcontroller 8 is connected to boost module 3, and the output end of boost module 3 is connected by sampling test circuit 1
It is connected to singlechip microcontroller 8, singlechip microcontroller 8 is also associated with relay array 2.
1, test circuit 1 is sampled, five p-wires are connected with, for testing insulating resistance value by p-wire, and will be electric
Resistance value is converted to voltage value, retransmits to singlechip microcontroller 8；When testing DC600V DC terminals：It needs to connect three p-wires,
Three p-wires are respectively DC600V+ lines, DC600V- lines, ground wire；When testing the exchange ends AC380V：It needs to connect five p-wires,
Respectively U lines, V lines, W lines, N lines, ground wire.5 p-wires in total, DC600V+ lines and W lines totally 1 line, DC600V- lines and U lines
Single line altogether.
2, relay array 2, for testing multi-group data；Accumulator, for providing voltage for boost module 3；Boost mould
Block 3, the voltage for receiving accumulator transmission；And according to the instruction of singlechip microcontroller 8, the voltage received is risen
Pressure, then the voltage after raising is sent to sampling test circuit 1.
Relay array 2 includes eight triodes being set up in parallel, and the emitter of each triode is grounded, each three pole
The base stage of pipe is respectively connected with resistance, and the port for being connect with train power interface, each triode are provided on each resistance
Collector 12V voltages are connected to by corresponding relay；Port, the ends DC600V+, DC600V- for connecting train
End, ground wire, the ends U, the ends V, the ends W, N-terminal and car shell.
Relay array 2, for testing multi-group data.DC terminal is such as tested, needs to connect 3 lines, 3 lines are respectively
3 lines are corresponded to the ends DC600V+, the ends DC600V-, visitor of prostitution vehicle by DC600V+ lines, DC600V- lines, ground wire, when test respectively
The shell of vehicle, by relay array can test simultaneously 3 groups of insulation values (3 groups of insulation values are respectively DC600V+ and DC600V-,
DC600V+ and ground, the insulation values of DC600V- and ground).Such as test exchange end, need to connect 5 lines, 5 lines be respectively U lines, V lines,
W lines, N lines, ground wire, when test by 5 lines correspond to respectively the ends U of prostitution vehicle, the ends V, the ends W, N-terminal, car shell, pass through relay
Device array can test simultaneously 10 groups of insulation values (10 groups of insulation values are respectively U phases and V phases, U phases and W phases, V phases and W phases, U phases with
N, V phase and N, W phases and N, U phase and ground, V phase and ground, W phase and ground, the insulation values of N and ground).
3, singlechip microcontroller 8 are boosted for controlling boost module 3, and singlechip microcontroller 8 receives button behaviour
Make on-off model, sends out voltage signal control boost module 3 and boost, the voltage after boosting is for sampling test circuit
Test voltage；Singlechip microcontroller 8 sends out corresponding relay in control voltage signal control relay array and is attracted simultaneously
(be attracted every time two of which relay), institute's measured object to be tested after relay is attracted (DC600V DC terminals insulation resistance or
AC380V exchanges end insulation resistance) digital quantity voltage signal, digital quantity voltage are exported by comparing by the acquisition of sampling test circuit
Signal is transferred to singlechip microcontroller 8 (i.e. singlechip microcontroller 8 receives the voltage that sampling test circuit 1 is sent), single
Piece machine microcontroller 8 passes through calculation process, and result is sent to screen display from data port.
4, sampling test circuit 1 includes first resistor R1, and one end of first resistor R1 is connected to the anode of boost module 3,
The other end is connected to the cathode of boost module 3 by second resistance R2, and one end of zero resistance R0 is being connected to boost module 3 just
Pole, the other end are connected to the cathode of boost module 3 by xth resistance Rx.
Test circuit 1 is sampled, is used for measured object (DC600V+ and DC600V-, DC600V+ and ground, DC600V- and ground, U
Mutually and V phases, U phases and W phases, V phases and W phases, U phases and N, V phase and N, W phase and N, U phase and ground, V phase and ground, W phase and ground or N and
Ground) insulating resistance value acquisition be converted to voltage value and be sent to singlechip microcontroller.
Sample 1 specific work process of test circuit：Boost module 3 provides test voltage, relay for sampling test circuit
Array 2 is that (DC600V DC terminals insulation resistance or AC380V exchanges end are exhausted for the sampling acquisition measured object of test circuit 1 insulating resistance value
Edge resistance), sampling test circuit is controlled by singlechip microcontroller 8 institute's measured object to be tested being converted into digital quantity voltage
Signal.
5, also data connection is useful for for detection data being transmitted to the wireless transmission of server singlechip microcontroller 8 respectively
Module 9, and the USB unloadings module 10 for historical data transfer preservation.
Wireless transport module 9, for the data transmission that will detect to server, after data upload server, in server
Software can all data be analyzed and be arranged automatically, convenient for data consumer access and management, realize foot not
Go out family, you can control the insulation situation of all tested trains in real time；USB unloading modules are preserved for historical data transfer.
6, singlechip microcontroller 8 also with 11 data interaction of Temperature Humidity Sensor；Temperature Humidity Sensor 11, in real time with
The detection of track temperature and humidity judges whether test result is qualified according to humiture environment, and the temperature and humidity that will be detected
Data are sent to singlechip microcontroller 8.The standard value of insulation resistance value is different under different humiture environment.
7, a kind of train insulation wireless transmission automatic tester further includes power module 5, and accumulator 4 passes through power module 5
It is connected to singlechip microcontroller 8, power module 5 is for the voltage of accumulator 4 to be converted into required for singlechip microcontroller 8
Voltage, and provide power supply for singlechip microcontroller 8.
8, singlechip microcontroller 8 also with 7 data interaction of key operation module 6 and screen display；Key operation module
6, for sending instructions to singlechip microcontroller 8, with the action of control single chip computer microcontroller 8；Screen display
7, the working condition for showing detector, information and data.
Two, principle is discussed：
2.1, the megger used in the prior art frequently with test method be current-voltage method, that is, measure test product electric leakage
The voltage drop in measuring resistance is flowed to calculate the insulation resistance of test product.And numerical megger is usually by DC voltage transformer
DC high-voltage is converted battery voltage to as test voltage, this test voltage is applied to the electric current warp generated on measured object
Overcurrent electric pressure converter is converted to corresponding voltage value, and being then delivered to analog-digital converter becomes numerical variable by Microcomputer Calculation
Processing, corresponding insulating resistance value is shown by display.A kind of train insulation of the present invention, which is wirelessly transferred automatic tester, is
Exclusively for the multifunctional digital megameter of the wireless transmission of train power supply insulating Design.As shown in Fig. 2, part of detecting use is adopted
Sample test circuit 1 is double branch networks, and wherein first resistor R1, second resistance R2 and zero resistance R0 are known fixed resistance values,
U1 is the sampled voltage on R1, and total voltage U=U1* (R1+ can be calculated by the intrinsic standoff ratio of second resistance R2 and first resistor R1
R2)/R1, U0 are the sampled voltages on zero resistance R0, and the resistance value of tested RX can be calculated according to Ohm's law, and formula is as follows：
RX=(U1* (R1+R2)/R1-U0)/(U0/R0).
2.2, due to the power supply Insulation monitoring of passenger train need test multi-group data：Direct current passenger train needs to measure just
Negative terminal 3 groups of insulating resistance values over the ground and between positive and negative terminal；Exchange passenger train needs to measure U, V, W, N over the ground and U, V, W,
The alternate 10 groups of insulating resistance values of N.Traditional megger only has two p-wires that can only once test a class value, train insulation wireless transmission
Automatic tester has 5 p-wires, and U, V, W, the N of corresponding exchange car, in addition one is ground wire.
A kind of train insulation wireless transmission automatic tester of the present invention can carry out different circuits by relay array 2
Measurement in a closed series, range ability is big, can automatically be realized according to actual test numerical quantity range switch.
Fig. 3 is that the relay controlled by singlechip microcontroller 8 in relay array is attracted, and is wanted for directly acquiring
The measured object of test；Acquisition the insulating resistance value of measured object to be tested be transferred to Fig. 4 and be converted into digital quantity voltage signal.It is logical
Fig. 3 is crossed to can be seen that through multiple relays different actuation test multi-group data (2 relays of every group of actuation, and every group of suction
2 relays closed are 1 therein of K1-K4 and 1 therein of K5-K8) 1 group of number can only be tested every time better than common megameter
According to.
As shown in figure 3, relay array 2 includes eight triodes being set up in parallel, the emitter of each triode
It is grounded, the base stage of each triode is respectively connected with resistance, is provided on each resistance for connecting with train power interface
The collector of the port connect, each triode is connected to 12V voltages by corresponding relay；The port, is used for
Connect the ends DC600V+ of train, the ends DC600V-, ground wire, the ends U, the ends V, the ends W, N-terminal or car shell.The present invention is by eight three
Pole pipe number consecutively is Q1-Q8, and eight resistance number consecutivelies are R9-R13 by corresponding eight triodes, the port of eight resistance according to
Secondary number is PE8-PE15, and eight relay number consecutivelies are K1-K8 by corresponding eight triodes, and eight relays are corresponding in turn to
The ends DC600V+, the ends U, the ends DC600V-, N-terminal, the ends V, the ends W and ground.
PE10 and PE13 making alives are given by microcontroller when insulation resistance between measuring U-V, make triode Q3 and Q6
Conducting makes relay K3 and K6 act, and realizes the insulation measurement between U-V.
Fig. 4 is that institute's measured object to be tested is converted into digital quantity voltage signal by the control of singlechip microcontroller 8.
In Fig. 4, the end PE7, PC4, PC5 of AQW214 is controlled by singlechip microcontroller 8, makes whether the internal circuit of AQW214 leads
It is logical, to choose whether R8 is used as sampling resistor with (R19+R5+R34), it is compared with measured object insulation resistance and is transported by LM158
Calculate processing output digital quantity voltage signal.
As shown in figure 3, collecting PE7, PC4, the PC5 for 100, Fig. 4 that measured object (insulation resistance) is transferred to Fig. 4 through 100
End is controlled by singlechip microcontroller 8, collects measured object (insulation resistance) size according to fig. 3, and singlechip microcontroller 8 is determined
Whether sending low level signal to the end PE7, PC4, PC5 calmly makes AQW214 light coupling relays be connected, and passes through LM158 operation comparators
Operation exports digital quantity voltage signal.
As shown in figure 4, when insulation resistance is smaller, uses R8 (2.4K) as sampling resistor, R8+ is used when insulation resistance is big
R19+R5+R34 (274.4K) is used as sampling resistor, and it is accurate to ensure to measure.It is connected by the control port of microcontroller different
Tested end, it is automatic after being measured to replace, until all results are shown.
When insulation resistance is smaller, light coupling relay conducting inside U11 and U10 in 8 control figure 4 of singlechip microcontroller,
Short circuit R19, R5 and R34 resistance, for R8 as sampling resistor, R8 is the R1 in Fig. 2 at this time；
When insulation resistance is larger, it is low that singlechip microcontroller 8 does not give PE7, PC4, PC5 of U11 and U10 in Fig. 4 to send
Level signal makes internal light coupling relay be connected, and R8+R19+R5+R34 is as sampling resistor, R8+R19+R5+R34 Fig. 2 at this time
In R1.
Data after the completion of test can save in the memory of device, can be exported by USB port, can also pass through mobile phone
Communication network realizes wireless strange land transmission.
Slave computer part shows that detector booting enters main interface, main boundary after welcoming interface using 3.5 cun of color line screens
The information such as time, temperature, humidity, wireless signal are shown on face.In addition there are four function choosing-item menus：" DC port ", " exchange
Port ", " parameter setting ", " record queries ".The subordinate interface of a function can be entered by button operation." DC port " and
" AC port " is the port test interface for respectively enteing direct current vehicle and alternating current vehicle, and " parameter setting " is to enter systematic parameter circle
Face." record queries " are to enter the inquiry of historical data interface.
Train insulation wireless transmission automatic tester upper computer software is the software operated under Windows7 operating systems,
Major function includes DC detecting data query, the inquiry of exchange detection data, data sheet prints, user is newly-increased etc..
Three, the course of work：
It insulate by Train and is wirelessly transferred automatic tester power switch, accumulator 4 is that train insulation wireless transmission is automatic
Each module of detector, system provide general supply, and voltage of 5 pieces of the power supply mould by accumulator 4 is converted into needed for singlechip microcontroller 8
The key frame of the various power supplys wanted, screen display 7 shows DC port, AC port, parameter setting, record queries menu
Key, preset test environment temperature and humidity, accumulator electric-quantity and network signal.
It when screen display 7 shows normal, is tested, is first discharged before test, it, will be in Fig. 3 after the completion of electric discharge
Five p-wires drawn are connected with corresponding measured object, select corresponding port menu to be tested after connecting, microcontroller
Microcontroller 8 receives corresponding on-off model instruction, and singlechip microcontroller 8 sends out control voltage control boost module and carries out
Boosting.If it is test AC port：Control boost module 3 boosts to 500V, and the ends U1 of Fig. 2 are connected to the upper ends Fig. 3 resistance R44,
100 ends of Fig. 3 and 100 ends of Fig. 4 connect, at this time singlechip microcontroller 8 send PE8 in faint voltage signal to Fig. 3,
The ends PE13 allow triode Q1, Q6 to be connected, so that relay K1, K6 coil is obtained electric, to make K1, K6 contact closure be connected, K1 and K6
Contact will collect the measured object insulation resistance for needing to measure after being all closed, this insulation resistance is transferred to Fig. 4 and passes through LM158 operations
Output numerical value amount voltage signal is amplified in amplifier comparison operation, and numerical quantities voltage signal is transferred to microcontroller by the ends ADC_1 of Fig. 4
Microcontroller carries out calculation process, by the specific measured object insulating resistance value size of screen display after calculation process, i.e., can show
Show V/W-：_M.U/V, U/W, U/N, V/N, W/N, U/, V/, W/, the megger test on the ground N/, principle is similar, only
Singlechip microcontroller controls different relays and obtains electric actuation.If it is test DC port：Control boost module boosts to
The ends U0 of 1000V, Fig. 2 are connected to the upper ends Fig. 3 resistance R44, and 100 ends of Fig. 3 and 100 ends of Fig. 4 connect, at this time microcontroller microcontroller
Device sends the end PE10, PE12 in faint voltage signal to Fig. 3, allows triode Q3, Q5 to be connected, makes relay K3, K5 coil
It is electric, to which the measured object insulation that needs measure will be collected after so that K3, K5 contact closure (conducting), K3 and K5 contacts is all closed
Resistance, this insulation resistance are transferred to Fig. 4 and amplify output numerical value amount voltage signal, Fig. 4 by LM158 operational amplifier comparison operations
The ends ADC-1 numerical quantities voltage signal be transferred to singlechip microcontroller carry out calculation process, pass through screen after calculation process
It shows specific measured object insulating resistance value size, i.e., can show DC600V+/DC600V-：_M.DC600V+/ground, DC600V-/
The megger test on ground, principle is similar, and only singlechip microcontroller controls different relays and obtains electric actuation.
Software systems include slave computer software system and upper computer software system.A kind of automatic inspection of train insulation wireless transmission
The top of instrument instrument is surveyed there are one power switch key and a charge port, bottom is provided with five p-wires and a humiture is visited
Head, opens the power switch of instrument, and 3.5 cun of LCD colorful display screens show time, temperature, humidity, wireless signal, battery capacity
In addition information also shows four function choosing-item menus：" DC port ", " AC port ", " parameter setting ", " record queries ".
Enter corresponding function subordinate interface by 5 buttons (upper and lower, left and right key and OK keys) below display screen.
Cursor is chosen " DC port " click " OK " key that can enter DC port and is detected, and interface is detected into DC port
Afterwards, by button to parking lot, station track, train number, number, car type, vehicle, license number carry out selection determination, are clicked after the completion of determining
" OK " enters DC port and detects test interface.DC600V+/ground is shown in interface：M, DC600V-/ground：M, DC600V+/
DC600V-：M separately also shows " I tunnel ", " test ", " upload ", " preservation ", " return " function key.
After connecting p-wire, tested by button selection function key " test ".Cursor chooses " test " function key,
" OK " key is pressed, singlechip microcontroller receives this digital quantity signal, and singlechip microcontroller executes operation, sends out control voltage
Control boost module carries out boosting to test voltages of the DC1000V as sampling test circuit, while controlling relay array phase
No. 3 relays answered obtain electric actuation, and the insulating resistance value tested, which is converted to voltage value, by sampling test circuit is sent to
Singlechip microcontroller, singlechip microcontroller are transmitted to screen display module to voltage signal progress calculation processing and show
DC600V+/ground：M, DC600V-/ground：M, DC600V+/DC600V-：The concrete numerical value size of M.
As DC600V+/：M, intermediate empty 2 lattice show that numerical value, M are unit M Ω (megaohm) contractings of insulation resistance
It writes, i.e., screen is completed in test can show DC600V+/ground：99.8M or the concrete numerical value of other tests.
If real-time radio transmission data, clicking " upload " key can transmit.If you need to preserve data, click " preservation "
Key can save current test data.It is unique the difference is that connect more the mode of AC port test and DC port test
Two p-wires, test value have 10 groups, and control relay array corresponding relay is different.
In present invention design, relay array circuit is increased, it is low to solve megger, digital megohmmeter measurement efficiency
Under, multiple measurement problem is needed, DC port is such as tested, needs to carry out 3 this measurement, tests AC port, need 10 this measurement,
And a kind of train insulation wireless transmission automatic tester is both needed to one-shot measurement to direct current, exchange.It is another increase USB unloadings and
Wireless transmission circuit, solving digital megger, digital megohmmeter cannot preserve data, upload, and a kind of train insulate
Wireless transmission automatic tester can preserve data, be uploaded, and after data upload server, the software in server can
Automatically all data are analyzed and is arranged, the access convenient for data consumer and management are stayed indoors, i.e., to realize
The insulation situation of all tested trains can be controlled in real time.
Claims (7)
1. a kind of train insulation wireless transmission automatic tester, which is characterized in that including accumulator (4) and singlechip microcontroller
(8), the output end of the accumulator is connected to boost module (3), and the output end of the singlechip microcontroller (8) is connected to liter
The output end of die block (3), the boost module (3) is connected to singlechip microcontroller (8) by sampling test circuit (1),
The singlechip microcontroller (8) is also associated with relay array (2)；
Wherein, the sampling test circuit (1), is connected with five p-wires, for testing insulation resistance by the p-wire
Value, and the resistance value is converted into voltage value, it retransmits to the singlechip microcontroller (8)；
The relay array (2), for testing multi-group data；
The accumulator (4), for providing voltage for the boost module (3)；
The boost module (3), the voltage transmitted for receiving the accumulator；And according to the finger of singlechip microcontroller (8)
It enables, boosts to the voltage received, then the voltage after raising is sent to sampling test circuit (1)；
The singlechip microcontroller (8) boosts to the voltage received for controlling the boost module (3)；Also use
In the voltage received and processing sampling test circuit (1) is sent.
2. a kind of train insulation wireless transmission automatic tester as described in claim 1, which is characterized in that the sampling test
Circuit (1) includes first resistor R1, and one end of the first resistor R1 is connected to the anode of boost module (3), and the other end passes through
Second resistance R2 is connected to the cathode of boost module (3), and one end of the zero resistance R0 is being connected to boost module (3) just
Pole, the other end are connected to the cathode of boost module (3) by xth resistance Rx.
3. a kind of train insulation wireless transmission automatic tester as described in claim 1, which is characterized in that the relay battle array
It includes eight triodes being set up in parallel to arrange (2), and the emitter of each triode is grounded, the base of each triode
Pole is respectively connected with resistance, and the port for being connect with train power interface is provided on each resistance, each triode
Collector is connected to 12V voltages by corresponding relay；The port, for connect train the ends DC600V+,
The ends DC600V-, ground wire, the ends U, the ends V, the ends W, N-terminal and car shell.
4. a kind of train insulation wireless transmission automatic tester as described in any one of claim 1-3, which is characterized in that
The singlechip microcontroller (8) also with key operation module (6) and screen display (7) data interaction；The button operation
Module (6), for sending instructions to singlechip microcontroller (8), in the work to control the singlechip microcontroller (8)
Hold；The screen display (7), the working condition for showing detector, information and data.
5. a kind of train insulation wireless transmission automatic tester as described in any one of claim 1-3, which is characterized in that
Also data connection is useful for for detection data being transmitted to the wireless transport module of server the singlechip microcontroller (8) respectively
(9), the USB unloadings module (10) and for historical data transfer preserved.
6. a kind of train insulation wireless transmission automatic tester as described in any one of claim 1-3, which is characterized in that
The singlechip microcontroller (8) also with Temperature Humidity Sensor (11) data interaction；
The Temperature Humidity Sensor (11) is used for the detection of real-time tracking temperature and humidity, judges to test according to humiture environment
As a result whether qualified, and the temperature and humidity data detected are sent to the singlechip microcontroller (8).
7. a kind of train insulation wireless transmission automatic tester as described in any one of claim 1-3, which is characterized in that
Further include power module (5), the accumulator (4) is connected to singlechip microcontroller (8), the electricity by power module (5)
Source module (5) is used to the voltage of accumulator (4) being converted into singlechip microcontroller (8) required voltage, and is the list
Piece machine microcontroller (8) provides power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764824.4A CN108710075A (en) | 2018-07-12 | 2018-07-12 | A kind of train insulation wireless transmission automatic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810764824.4A CN108710075A (en) | 2018-07-12 | 2018-07-12 | A kind of train insulation wireless transmission automatic tester |
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| Publication Number | Publication Date |
|---|---|
| CN108710075A true CN108710075A (en) | 2018-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810764824.4A Pending CN108710075A (en) | 2018-07-12 | 2018-07-12 | A kind of train insulation wireless transmission automatic tester |
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| Country | Link |
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| CN (1) | CN108710075A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557853A (en) * | 2020-12-19 | 2021-03-26 | 哈尔滨恒达交通设备技术开发有限公司 | Compound intelligent insulation detector for railway carriage |
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| CN203310920U (en) * | 2013-06-21 | 2013-11-27 | 国家电网公司 | Battery insulation detection circuit and battery insulation detection device |
| CN107831425A (en) * | 2017-12-15 | 2018-03-23 | 株洲中车电气科技有限公司 | A kind of train comprehensive intelligent insulation detecting method and system and device |
| CN107966635A (en) * | 2016-10-19 | 2018-04-27 | 贾海亮 | A kind of car insulation tester system |
| CN208780778U (en) * | 2018-07-12 | 2019-04-23 | 北京九方宏信交通装备有限公司 | A kind of train insulation wireless transmission automatic tester |
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| CN201107367Y (en) * | 2007-11-20 | 2008-08-27 | 肖守讷 | Rolling stock hand-hold intelligent insulated detector |
| CN203310920U (en) * | 2013-06-21 | 2013-11-27 | 国家电网公司 | Battery insulation detection circuit and battery insulation detection device |
| CN107966635A (en) * | 2016-10-19 | 2018-04-27 | 贾海亮 | A kind of car insulation tester system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112557853A (en) * | 2020-12-19 | 2021-03-26 | 哈尔滨恒达交通设备技术开发有限公司 | Compound intelligent insulation detector for railway carriage |
| CN112557853B (en) * | 2020-12-19 | 2023-05-30 | 哈尔滨恒达交通设备技术开发有限公司 | Composite intelligent insulation detector for railway carriage |
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