System type inverter failure detector and its detection method in track traffic【Technical field】
The invention belongs to system type inverter system maintenance field in track traffic, and in particular in a kind of track trafficSystem type inverter failure detector and its detection method.
【Background technology】
Inverter master board failure detector mainly for it is domestic often lead, magnificent scholar, just remote, strain institute, Tie Ke institutes it is inverseBecoming the different manufacturers such as device, charger, interface disunity, skimble-scamble inverter master board of powering carries out trouble hunting and testsCard.
【The content of the invention】
It is an object of the invention to provide the system type inverter failure detector and its detection side in a kind of track trafficMethod, to solve the trouble hunting of existing car inverter artificial judgment is carried out, and is wasted time and energy, the low problem of operating efficiency.
The first technical scheme that the present invention is adopted, the system type inverter failure detector in track traffic, includingPreset the calculating for judging tested system type master board real-time status and the detecting system for providing fault solution in insideMachine, computer passes sequentially through PLC module, relay group and Switching Power Supply group and is connected to interface board, and computer also passes sequentially through 485Communication module and analog output module are connected to interface board, and interface board is used to connect tested system type master board, tested system typeMaster board is connected to PLC module；
Analog output module, for adjusting output voltage the template master board of tested system is given, and tests its performance；
Interface board, for connecting the power supply power supply interface of tested system type master board；
PLC module, for gathering tested system type master board output contactor control voltage signal, and voltage signal is sent outDeliver to computer；
485 communication modules, different voltages are exported to tested system type master board for controlling analog output module, fromAnd the test under the conditions of different performance is carried out to the master board of tested system type；Being additionally operable to the cycle sends information command message to testedThe master control borad of inverter, then tested inverter master control borad send response message and be uploaded to computer, response message includes electricityPressure, electric current, frequency and failure code；
Computer, for receiving the response message that tested inverter master control borad sends, and response message is analyzed,Process and show；It is additionally operable to receive the voltage signal sent by PLC module, and voltage signal is compared with standard informationCompared with：If information is consistent with standard information, that is, illustrate that tested system type master board does not have failure, industrial computer shows tested system typeMaster board is working properly；If information is not inconsistent with correct information, that is, illustrate that tested system type master board is faulty, show on computerShow the nonconformance of tested system type master board, and the trouble hunting method of correspondence nonconformance.
Further, relay group includes the first relay, the second relay and the 3rd relay, and Switching Power Supply group includesFirst switch power supply, second switch power supply, the 3rd Switching Power Supply；Wherein, the first relay is connected to by first switch power supplyInterface board；Second relay is connected to interface board by second switch power supply；3rd relay is connected by the 3rd Switching Power SupplyTo interface board.
Further, interface board is additionally operable to connect tested system type power panel, and tested system type power panel is passed by Hall voltageSensor group is connected to PLC module；
Hall voltage sensor, for gathering the voltage signal of tested system type driving plate output, and is delivered to PLC module；
PLC module, for receiving the voltage signal of the tested system type driving plate output come by Hall voltage sensor conveying,And voltage signal is sent to computer；
Computer, for receiving the voltage signal that PLC module transmission comes, and is converted into actual test magnitude of voltage, by withThe standard voltage value of setting is compared judgement：
If actual test magnitude of voltage is consistent with standard voltage value, that is, illustrate that tested system type power panel does not have failure；If actualTest voltage value is not inconsistent with standard voltage value, that is, illustrate that tested system type power panel is faulty, and tested system type electricity is shown on computerThe nonconformance of source plate, and the trouble hunting method of correspondence nonconformance.
Further, Hall voltage sensor includes three Hall voltage sensors being set up in parallel.
Further, computer passes sequentially through PLC module, the 4th relay and the 4th Switching Power Supply and is connected to pwm signalGenerator, PWM signal generator is used to connect system type driving plate to be measured, and system type driving plate to be measured is connected to PLC module, the 4th afterElectrical equipment is also connected with PWM signal generator；
Wherein, the 4th Switching Power Supply, for powering for PWM signal generator；
4th relay, for receive computer by PLC module transmission come instruction, to trigger PWM signal generator51MCU P0.0 and P0.1 two pins export two-way synchronous backward pwm pulse signal to tested system type driving plate；
PLC module, for gathering the pulse quiescent output voltage and pulse-triggered output voltage values of tested system type driving plate,And send pulse quiescent output voltage and pulse-triggered output voltage values to computer；
Computer, for receiving pulse quiescent output voltage and pulse-triggered output voltage values, and by the mark of itself and settingQuasi- magnitude of voltage is compared respectively judgement：
If pulse quiescent output voltage and pulse-triggered output voltage values are consistent with standard voltage value, that is, illustrate tested systemType driving plate does not have failure；If pulse quiescent output voltage and pulse-triggered output voltage values are not inconsistent with standard voltage value, i.e.,Illustrate that tested system type driving plate is faulty, the nonconformance of tested system type driving plate is shown on computer, and it is corresponding unqualifiedThe trouble hunting method of item.
Second technical scheme that the present invention is adopted, the inspection of the inverter master control borad fault detection means in track trafficSurvey method, the method for testing of tested system type master board is：
Step 1, first the power interface of tested system type master board, relay output interface be connected to into interface board, then will485 communication interfaces are connected in 485 communication modules in tested system type master board, and PLC module is connected to computer；
After step 2, connection are finished, then start the detecting system on computer；
Step 3, start test：
Analog output module output voltage is controlled to tested system type master board, change output electricity by 485 communication modulesThe size of pressure, so as to carry out different performance tests to the master board of tested system type；485 communication modules, the cycle sends information and refers toMessage is made to tested system type master board, the tested system type master board of master send response message be uploaded to computer be analyzed,Process, show；Message Jing processes the information such as voltage, electric current, frequency, the failure code of the tested master control borad of display；
PLC module gathers tested system type master board relay output interface 24V information of voltage, and by the inspection in computerSurvey software to judge information：
If information is consistent with standard information, that is, illustrate that tested system type master board does not have failure, industrial computer shows quiltSurvey system type master board working properly；If information is not inconsistent with correct information, that is, illustrate that tested system type master board is faulty, calculateThe nonconformance of tested system type master board, and the trouble hunting method of correspondence nonconformance are shown on machine.
Further, in step 2, after starting industrial computer, need to inspection software interface input test essential information,Selection experiment project.
Further, in step 3, different performance tests are carried out to the master board of tested system type including under-voltage, over-pressed, mistakeCurrent test.
The invention has the beneficial effects as follows：1. can be to car system type inverter master board, power panel, driving plate failureAutomatic test is carried out, without the need for artificial judgment, guided maintenance personnel quickly and accurately carry out localization process to failure, improve inspectionThe efficiency repaiied and level, save the cost of maintenance, shorten maintenance cycle.
2. the method that troubleshooting is shown in the way of word and picture, effectively improves the technical ability of maintenance personal.
【Description of the drawings】
Fig. 1 is the structural representation of the system type inverter failure detector in track traffic of the present invention；
Fig. 2 is that power panel output detection structure is shown in the system type inverter failure detector in track traffic of the present inventionIt is intended to；
Fig. 3 is the PWM signal generator structure in the system type inverter failure detector in track traffic of the present inventionSchematic diagram；
Fig. 4 is the detecting system flow chart in the system type inverter failure detector in track traffic of the present invention.
Wherein, 1. computer, 2.485 communication modules, 3. analog output module, 4.PLC modules, 5. the first relay,6. the second relay, 7. the 3rd relay, 8. the 4th relay, 9. first switch power supply, 10. second switch power supply, 11. the 3rdSwitching Power Supply, 12. the 4th Switching Power Supplies, 13. interface boards, 14. system type master boards to be measured, 15. system type power panels to be measured,16.PWM signal generators, 17. system type driving plates to be measured, 18. Hall voltage sensors.
【Specific embodiment】
Below by drawings and Examples, technical scheme is described in further detail.
The invention provides the system type inverter failure detector in a kind of track traffic, as shown in figure 1, including interiorPortion preset for judge the real-time status of tested system type master board 14 and provide fault solution detecting system calculatingMachine 1, computer 1 passes sequentially through PLC module 4, relay group and Switching Power Supply group is connected to interface board 13, and computer also leads to successivelyCross 485 communication modules 2 and analog output module 3 is connected to interface board 13, interface board 13 is used to connect tested system type main controlPlate 14, tested system type master board 14 is connected to PLC module 4；
Analog output module 3, for adjusting output voltage to tested system template master board 14, tests its performance；ConnectOralia 13, for connecting the power supply power supply interface of tested system type master board 14；PLC module 4, for gathering tested system type master controlThe output contactor control voltage signal of making sheet 14, and voltage signal is sent to computer 1；
485 communication modules 2, different voltages are exported to tested system type master board for controlling analog output module 314, so as to carry out the test under the conditions of different performance to tested system type master board 14；It is additionally operable to cycle transmission information command to disappearCease to the master control borad of tested inverter, then tested inverter master control borad sends response message and is uploaded to computer 1, response letterBreath includes voltage, electric current, frequency and failure code；
Computer 1, for receiving the response message that tested inverter master control borad sends, and is carried out point to response messageAnalysis, process and display；It is additionally operable to receive the voltage signal sent by PLC module 4, and voltage signal is carried out with standard informationRelatively：If information is consistent with standard information, that is, illustrate that tested system type master board does not have failure, industrial computer 1 shows testedSystem type master board is working properly；If information is not inconsistent with correct information, that is, illustrate that tested system type master board is faulty, computerThe nonconformance of tested system type master board, and the trouble hunting method of correspondence nonconformance are shown on 1.
Wherein, relay group includes the first relay 5, the second relay 6 and the 3rd relay 7, and Switching Power Supply group includesFirst switch power supply 9, second switch power supply 10, the 3rd Switching Power Supply 11；Wherein, the first relay 5 passes through first switch power supply 9It is connected to interface board 13；Second relay 6 is connected to interface board 13 by second switch power supply 10；3rd relay 7 is by theThree Switching Power Supplies 11 are connected to interface board 13.
In addition, interface board 13 is additionally operable to connect tested system type power panel 15, tested system type power panel 15 passes through Hall voltageSensor group 18 is connected to PLC module 14；
Hall voltage sensor 18, Hall voltage sensor 18 includes three Hall voltage sensors being set up in parallel, and usesIn the voltage signal of the tested output of system type driving plate 17 of collection, and it is delivered to PLC module 4；
PLC module 4, the voltage that the tested system type driving plate 17 come is exported is conveyed for receiving by Hall voltage sensor 18Signal, and voltage signal is sent to computer 1；
Computer 1, for receiving the voltage signal that the transmission of PLC module 4 comes, and is converted into actual test magnitude of voltage, passes throughJudgement is compared with the standard voltage value of setting：
If actual test magnitude of voltage is consistent with standard voltage value, that is, illustrate tested system type power panel 15 without failure；If realBorder test voltage value is not inconsistent with standard voltage value, that is, illustrate that tested system type power panel 15 is faulty, and tested system is shown on computer 1The nonconformance of type power panel 15, and the trouble hunting method of correspondence nonconformance.Wherein, standard voltage value is according to prior handThe output voltage values of the system type power panel of one piece of normal work of dynamic measurement, then arrange normal voltage, the system type electricity of normal workThe magnitude of voltage of source plate output is basically unchanged.
In addition, computer 1 also passes sequentially through PLC module 4, the 4th relay 8 and the 4th Switching Power Supply 12 is connected to PWM lettersNumber generator 16, PWM signal generator 16 is used to connect system type driving plate 17 to be measured, and system type driving plate 17 to be measured is connected to PLCModule 4, the 4th relay 8 is also connected with PWM signal generator 16；
Wherein, the 4th Switching Power Supply 12, for powering for PWM signal generator 16；
4th relay 8, for receive computer 1 by PLC module 4 transmission come instruction, with trigger pwm signal occurP0.0 the and P0.1 two pins of the 51MCU of device 16 export two-way synchronous backward pwm pulse signal to tested system type driving plate 17；
PLC module 4, for gathering the pulse quiescent output voltage and pulse-triggered output voltage of tested system type driving plate 17Value, and pulse quiescent output voltage and pulse-triggered output voltage values are sent to computer 1；
Computer 1, for receiving pulse quiescent output voltage and pulse-triggered output voltage values, and by the mark of itself and settingQuasi- magnitude of voltage is compared respectively judgement：
If pulse quiescent output voltage and pulse-triggered output voltage values are consistent with standard voltage value, that is, illustrate tested systemType driving plate 17 is without failure；If pulse quiescent output voltage and pulse-triggered output voltage values are not inconsistent with standard voltage value,Illustrate that tested system type driving plate 17 is faulty, the nonconformance of tested system type driving plate 17, and correspondence are shown on computer 1The trouble hunting method of nonconformance.Wherein, standard voltage value drives according to the system type of one piece of normal work of prior manual measurementThe output voltage values of plate power panel, then arrange normal voltage, and the magnitude of voltage of the system type driving plate output of normal work is substantially notBecome.
Present invention also offers a kind of detection method of the inverter master control borad fault detection means in track traffic, itsIn, the method for testing of tested system type master board 14 is：
Step 1, first the power interface of tested system type master board 14, relay output interface be connected to into interface board 13,485 communication interfaces in tested system type master board 14 are connected in 485 communication modules 2 again, PLC module 4 is connected to computer1, power supply output is connected to interface board.
After step 2, connection are finished, then start the detecting system on computer 1, detecting system adopts American National instrumentNI LabVIEW2013 graphical interfaces language is write, and installs NI VISA serial ports kits, OPC kits etc., User logs inMain interface is entered afterwards, test essential information is filled in, and Selection experiment project is clicked on start button and tested automatically.
Step 3, start test：
The output voltage of analog output module 3 is controlled to tested system type master board 14, change defeated by 485 communication modules 2Go out the size of voltage, so as to carry out different performance tests to tested system type master board 14, different performance tests includes owingPressure, excessively overvoltage, current test；485 communication modules 2, the cycle sends information command message to tested system type master board 14, and master is testedThe transmission response message of system type master board 14 is uploaded to computer 1 and is analyzed, processes, shows；Message Jing is processed and shows quiltSurvey the information such as voltage, electric current, frequency, the failure code of master control borad；
PLC module 4 gathers the relay output interface 24V information of voltage of tested system type master board 14, and by computer 1Inspection software information is judged：
If information is consistent with standard information, that is, tested system type master board 14 is illustrated without failure, industrial computer 1 showsThe master board 14 of tested system type is working properly；If information is not inconsistent with correct information, that is, illustrate that tested system type master board 14 has eventBarrier, shows the nonconformance of tested system type master board 14, and the trouble hunting method of correspondence nonconformance on computer 1.
Embodiment 1：
A kind of system type inverter failure detector in track traffic, including computer 1, computer 1 is respectively with 485Communication module 2, PLC module 4 connect.Wherein, 485 communication modules 2 are connected with analog output module 3, analog output module 3Connecting interface plate 13.PLC module 4 respectively with the first relay 5, the second relay 6, the 3rd relay 7, the 4th relay 8 andHall voltage sensor 18, system type master board 14 connect, the connection first switch power supply 9 of the first relay 5, the second relay 6Connection second switch power supply 10, the 3rd relay 7 connects the 3rd Switching Power Supply 11, the 4th relay 8 and connects the 4th Switching Power Supply12nd, in addition the 4th Switching Power Supply 12 connects PWM signal generator 16, the connection system type of PWM signal generator 16 driving plate 17.InterfacePlate 13 is connected with first switch power supply 9, second switch power supply 10, the 3rd Switching Power Supply 11 and analog output module 3.System type masterThe connecting interface plate 13 of control panel 14 and PLC module 4, the connecting interface plate 13 of system type power panel 15 and Hall voltage sensor 18.
Embodiment 2：
System type inverter failure detector in a kind of track traffic, using computer 1 to tested system type main controlPlate 14 detection process be：The connecting interface plate 13 of tested system type master board 14, detecting system pilot project is selected on computer 1" master control borad ", is sent to PLC module 4 by 232 serial ports and is instructed, and controls the corresponding actuating of relay, and then starts tested master controlThe Switching Power Supply that plate is accordingly powered.Concrete test process：1. the connecting interface plate 13 of system type master board 14 and analog output mouldBlock 3, computer 1 selects master control borad item, computer 1 to send instructions to PLC moulds by 232 serial ports by detecting system pilot projectBlock 4, start the first relay 5 and first switch power supply 9, the second relay 6 and second switch power supply 10, the 3rd relay 7 and3rd Switching Power Supply 11, is powered by interface board 13 to tested system type master board 14, and simultaneous computer 1 is by 485 communication mouldsBlock 2 to analog output module 3 sends communication instruction, and control analog output module 3 is surveyed to the feedback voltage signal of interface board 13The performance of tested master board is tried, master board output voltage and contactor output signal are transmitted to computer by PLC module 4Show in real time on 1 detecting system interface, conclusion is automatically generated on interface and the word and image processing method of correspondence failure is shown.
Embodiment 3：
In Fig. 2, the system type inverter failure detector in a kind of track traffic is tested system type power panel 15Process be：The tested connecting interface plate 13 of system type power panel 15, detecting system pilot project selects " power panel " on computer 1,Sent to PLC module 4 by 232 serial ports and instructed, control the corresponding actuating of relay, and then it is corresponding to start tested system type power panelThe Switching Power Supply of power supply.Concrete test process：1. the connecting interface plate 13 of system type power panel 15, computer 1 is tried by detecting system" " item, computer 1 sends instructions to PLC module 4 to power panel by 232 serial ports, starts the 3rd relay 7 and the to test items selectionThree Switching Power Supplies 11, are powered by interface board 13 to tested system type power panel 15, and the output voltage of system type power panel 15 passes through HallVoltage sensor is connected to PLC module 4 and gathers.Wherein, system type power panel 15 5V output be connected directly to PLC module 4 gather,± 15V output be connected to Hall voltage sensor 1 and by the output signal of sensor be connected to PLC module 4 gather, 24V outputBe connected to Hall voltage sensor 2 and by the output signal of sensor be connected to PLC module 4 gather, 110V output be connected to suddenlyThe output signal of sensor is simultaneously connected to PLC module 4 and is gathered by your voltage sensor 3, the voltage that last PLC module 4 will be gatheredInformation transfer shows in real time to the detecting system interface of computer 1, conclusion is automatically generated on interface and the text of correspondence failure is shownWord and image processing method.
Embodiment 4：
In Fig. 3, the system type inverter failure detector in a kind of track traffic is grasped to PWM signal generator 16The process of work is：PWM signal generator 16 connects the 4th relay 8 and the 4th Switching Power Supply 12 is powered, detection system on computer 1System pilot project selects " driving plate ", is sent to PLC module 4 by 232 serial ports and is instructed, and controls the 4th actuating of relay, triggeringP0.0 the and P0.1 two pins output two-way synchronous backward pwm pulse signal of the 51MCU of PWM signal generator 16.
Embodiment 5：
A kind of system type inverter failure detector in track traffic, the process that system type driving plate 17 is detectedFor：The connection of system type driving plate 17 Switching Power Supply 12 of PWM signal generator 16 and the 4th is powered, detecting system test on computer 1Items selection " driving plate ", is sent to PLC module 4 by 232 serial ports and is instructed, and controls the 4th actuating of relay, triggers pwm signalP0.0 the and P0.1 two pins of the 51MCU of generator 16 export two-way synchronous backward pwm pulse signal to tested system type driving plate17, the pulse signal of pwm pulse signal generator 16 is triggered system type driving plate 17 into the road output voltages of Qian six and pulse signal is touchedSend out the road output voltages of Hou six to be connected to PLC module 4 and gather, show six tunnels of tested system type driving plate 17 on computer 1 in real timeOutput voltage values, system is automatically generated test result and the method that corresponding failure is processed is shown in the way of word and picture.
The operation of fault detect is carried out to tested system type master board, system type power panel, system type driving plate using the present inventionThen process starts the detecting system on industrial computer 1 as shown in figure 4, during test, first connect Board Under Test and interface board 13Software, input User logs in account and password, into test main interface.Fill in corresponding in system main interface essential information hurdleThe essential informations such as information license number, numbering, pilot project, start test, and tested inverse plate is by PLC module 4 to industry calculatingWhether the transmission data of machine 1, detecting system can qualified according to the information automatic decision Board Under Test for receiving, and system automatically generates correspondence eventThe method detailed and flow process of barrier maintenance, guided maintenance personnel carry out quick and accurate to system type inverter master board failureProcess.It is completed, closes software, system automatically saves test failure information and facilitates technical staff to consult.