CN211857273U - Hardware maintenance test platform of subway vehicle-mounted signal control equipment - Google Patents
Hardware maintenance test platform of subway vehicle-mounted signal control equipment Download PDFInfo
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- CN211857273U CN211857273U CN202020085283.5U CN202020085283U CN211857273U CN 211857273 U CN211857273 U CN 211857273U CN 202020085283 U CN202020085283 U CN 202020085283U CN 211857273 U CN211857273 U CN 211857273U
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Abstract
The utility model relates to a hardware maintenance test platform of subway vehicle-mounted signal control equipment, including PXI control machine case, signal conditioning machine case, test machine case, main power control module and host computer, PXI control machine case be connected with signal conditioning machine case, test machine case, main power control module and host computer respectively, main power control module be connected with signal conditioning machine case, test machine case respectively; the signal conditioning case is used for connecting the testing case and a tested product. Compared with the prior art, the utility model has the advantages of maintenance and failure diagnosis's efficiency has been improved.
Description
Technical Field
The utility model relates to a hardware maintenance test platform especially relates to a hardware maintenance test platform of subway vehicle-mounted signal controlgear (iCC 200).
Background
With the rapid development of modern technologies, rail transit systems have higher and higher requirements on the reliability, stability, accuracy and coverage rate of the function test of hardware systems.
The existing iCC200 hardware function test platform can not realize repeated test on a single function item of a tested board card, and can not accurately position faults of the iCC200 system hardware board card, so that the problems of low maintenance efficiency, poor accuracy and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a subway vehicle-mounted signal control equipment's hardware maintenance test platform in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a hardware maintenance test platform of a subway vehicle-mounted signal control device is characterized by comprising a PXI control cabinet, a signal conditioning cabinet, a test cabinet, a main power supply control module and an upper computer, wherein the PXI control cabinet is respectively connected with the signal conditioning cabinet, the test cabinet, the main power supply control module and the upper computer, and the main power supply control module is respectively connected with the signal conditioning cabinet and the test cabinet; the signal conditioning case is used for connecting the testing case and a tested product.
Preferably, the PXI control cabinet comprises an NI PXIe-8840 controller, a PXI-2567 external relay driver, a PXI-7841 multifunctional reconfigurable I/O module, a PXIe-5641R intermediate frequency transceiver, a PXIe-4080 digital multimeter, a PXI-8513CAN interface module, a PXI-8431 serial instrument control module, a PXIe-5114 oscilloscope and a PXI-2529 matrix switch module, wherein the PXI-2567 external relay driver, the PXI-7841 multifunctional reconfigurable I/O module, the PXIe-5641R intermediate frequency transceiver and the PXIe-4080 digital multimeter are respectively connected with the NI PXIe.
Preferably, the signal conditioning chassis includes a speed signal conditioning board card, a beacon signal conditioning board card, a relay drive board card, an IMP modulation board card, a matrix routing board card, a serial port board, a PWM output board, a DMM switching board card, a load board card, a VPB branching board card, a DTG board, an oscilloscope board, and a power switching board card.
Preferably, the matrix routing board card is configured to access resources of the PXI control chassis to the matrix switch;
the serial port board is used for connecting the simulated industrial communication nodes of the PXI control cabinet to the matrix switch and comprises 1 CAN channel, 2 RS232 channels and 2 RS485/422 channels;
the relay driving board card is connected with a PXI-2567 external relay driver;
the PWM output board is connected with the PXI-7841 multifunctional reconfigurable I/O module.
Preferably, the test cabinet comprises a high-power test cabinet and a low-power test cabinet.
Preferably, the high-power test case comprises a high-current test board card and a high-current relay board.
Preferably, the low-power test case comprises a low-current test board card and a network load board.
Preferably, the platform further comprises a network switch for connecting the tested product and the PXI control cabinet.
Preferably, the platform further comprises a programmable direct current electronic load for simulating a tested HSS board on-load test, a program-controlled power supply for providing an on-load test power supply, and a serial port switch for supporting multi-serial port communication.
Preferably, the platform further comprises an MCU, an FPGA, a CPLD program burning interface and a DATAPLUG IIC testing interface.
Compared with the prior art, the utility model has the advantages of it is following:
the iCC200 system hardware integrated circuit board function is complicated, the utility model discloses the platform acquires the test data of being surveyed the point automatically, provides the required various signal excitation of integrated circuit board in a flexible way, has realized the accurate fault location to iCC200 system hardware integrated circuit board, has improved maintenance and fault diagnosis's efficiency, possesses the characteristics of high reliability, high flexibility.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic view of the specific structure of the present invention;
FIG. 3 is a schematic diagram of the internal testing principle;
FIG. 4 is a schematic diagram of a communication node testing principle;
FIG. 5 is a schematic diagram of a product output test principle;
FIG. 6 is a schematic diagram of a product input test principle;
FIG. 7 is a schematic diagram of product output signal testing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
As shown in fig. 1, a hardware maintenance test platform of a subway vehicle-mounted signal control device includes a PXI control cabinet 1, a signal conditioning cabinet 2, a test cabinet 3, a main power control module 4 and an upper computer 5, where the PXI control cabinet 1 is connected to the signal conditioning cabinet 2, the test cabinet 3, the main power control module 4 and the upper computer 5 respectively, the main power control module 4 is connected to the signal conditioning cabinet 2 and the test cabinet 3 respectively, and the signal conditioning cabinet 2 is connected to a tested product 6;
the PXI control case controls the test case to send and collect signals of a product to be tested, and unit functions and overall tests of a function board card of the product to be tested are completed;
the signal conditioning case is used for connecting the testing case and a tested product and realizing signal switching between the testing case and the tested product.
The PXI control cabinet meets the requirements of high reliability and high performance data acquisition and processing of a system and comprises an NI PXIe-8840 controller, a PXI-2567 external relay driver, a PXI-7841 multifunctional reconfigurable I/O module, a PXIe-5641R Intermediate Frequency (IF) transceiver, a PXIe-4080 digital multimeter, a PXI-8513CAN interface module, a PXI-8431 serial instrument control module, a PXIe-5114 oscilloscope and a PXI-2529 matrix switch module.
The signal conditioning case mainly realizes the signal switching between the test platform and the tested product. The device comprises a speed signal conditioning board card, a beacon signal conditioning board card, a relay board card, an IMP modulation board card, a matrix routing board card, a DMM switching board card, a load board card, a VPB branching board card and a power supply switching board card.
The Measx Matrix board in the signal conditioning cabinet is used for accessing NI test instrument resources into the Matrix switch, and ensuring that the instrument can be accessed to a product test point through the Matrix switch at a later stage; the serial port board is used for connecting the industrial communication nodes simulated by the NI testing instrument to the matrix switch, mainly comprises 1 CAN channel, 2 RS232 channels and 2 RS485/422 channels, and CAN perform communication testing with the main control board card by using a simulation interface; the drive signals of the relay drive board come from 3 PXI-2567 board cards with 64 channels, and 12 interfaces with 16 channels are output. The main function is to drive various relays to work, realize the work of small current control large current, and apply to the power supply of the product port connection load; the PWM output module is used for outputting PWM signals, the control board card is a PXI-7841 counter board card, the output of pulses is controlled, the output of an external OC gate is realized after the output of the pulses passes through the primary amplifying circuit, and the output of the OC gate is applied to radar testing of a VPB-2 board to be tested; the input of the load circuit module is a program-controlled power supply, a program-controlled load, a digital multimeter and a relay driving interface, a high-power supply is output, and corresponding signals are routed to the matrix switch, so that different test circuits can be realized through the combination of the relays, and different types of tests on product channels are met; the VPB conditioning board is used for conditioning beacon-related signals, PXIe-5641R sends a single-ended FSK signal analog beacon, the beacon is changed into a differential FSK signal after passing through a corresponding conditioning board, and TOPLOC and PHASE signals sent by an NI board are converted into differential signals from a single end. The PXI-7841 board then detects the D signal coming from the VPB-2 board and sends the C signal to the VPB-2 board. The corresponding conditioning board card mainly realizes the conversion between the input and output 5V of the instrument board card and the 24V of the VPB-2 board card; the input of the power input/output module is the power output by the power box, the output is the power of the load circuit, and the power is finally connected to the backboard of the test circuit. The DTG plate produced a ± 15V test square wave. The oscilloscope board is used for monitoring current ripples, PWM (pulse-width modulation) waveforms, serial port signal waveforms, CAN (controller area network) port signal waveforms and the like.
The high-power test case comprises a high-current test board card and a high-current relay board and is used for simulating the load of the product output to the outside.
The low-power test cabinet comprises a low-current test board card and a network load board (simulating a 100-meter network transmission line), and is used for testing low-current signals and network loads.
The main power supply module provides 110VDC working power supply for tested products and provides 24VDC/5VDC conditioning power supply for the conditioning case.
The network switch provides network communication between the host and the product.
The programmable direct current electronic load IT8512 simulates a tested board load test of HSS and other boards.
A programmable power supply N5770A provides on-load test power.
The serial port switch supports multi-serial port communication.
The platform cable includes the power supply cable required by the test equipment itself, as well as the cable between the test equipment and the fixture, with one end being a high density connector such as (HAN108) connected to the fixture, and the other end being a set of classified signal connectors connected to the instrument or load.
The platform provides MCU, FPGA, CPLD program burning interface, DATAPLUG IIC test interface.
When the extension plate considers the maintenance debugging board card, the tested board card needs to be taken down from the cage, the extension plate is replaced, and the tested board is inserted on the extension plate, so that the debugging is facilitated. The extension board interface comprises a CPM front board connector, a CPM rear board connector, a VIOM48 core connector, a PSB board connector and a buckle board connector.
The upper computer communication mode adopts a network communication mode to send test starting and stopping commands to the lower computer and receive test results uploaded by the lower computer. The system can realize automatic testing, test one board card each time, support single or multiple function selectable testing of the single board, and support setting of testing time or testing cycle times for full-function testing and selective testing. The current test progress can be displayed in real time, and the detailed condition of each test can be displayed in real time. The test result is stored in a report form, and a test report can be exported.
The test platform can realize the function test of VIOC board debugging network port, debugging serial port, CPU main frequency, internal timer, external counter, FLASH file system, EEPROM, DATAPLUG, IOBUS bus, DPRAM, working network port, RS422 serial port, IIC interface and nixie tube.
The test platform can realize the action test of the MOSFET of the DSB board, the read-back of the relay state, the 2OO2 test, the conduction power test, the conduction resistance test, the conduction voltage test, the leakage current test, the IOBUS bus test, the main frequency test of the single chip microcomputer, the CPLD/FPGA test, the 574/244 chip test, the bottom board power circuit relay test, the output acquisition circuit function test, the contact acquisition function test, the PMP bus test and the output circuit state check.
The test platform can realize PSB board 2OO2 test, conduction power test, conduction resistance test, conduction voltage test, leakage current test, IOBUS bus test, single-chip microcomputer main frequency test, CPLD/FPGA test, 574/244 chip test, bottom board power circuit relay test, output acquisition circuit function test, contact acquisition function test, PMP bus test and output circuit state check.
The test platform can realize FAB board output current test, current ripple test, output voltage test, PWM output test, PWM duty cycle readback test, channel output test and IOBUS bus test.
The test platform can realize the output state recovery of the FDB board, the output voltage test, the 2oo2 test, the load capacity test, the leakage current test and the IOBUS bus test.
The test platform can realize single-channel current test, single-channel state read-back, 16-channel simultaneous test and IOBUS bus test of the VDI board.
The test platform can realize the strip-load test of 5VDC and 24VDC of the VPU board.
The test platform can realize VPB-2 plate CPCI bus test, zero-speed test, 50km/h tooth number and tooth number test of a coding odometer, downlink function test, FSK signal test, PHASE signal test, TOPLOC signal test, ATO function test, radar RS485 channel test and radar pulse signal test.
The test platform can realize the function tests of a VLE-2 board debugging network port, a debugging serial port, a CPU main frequency, an internal timer, an external counter, a FLASH file system, an EEPROM, a DATAPLUG, a DPRAM, a working network port, an RS485 serial port, an IIC interface, an RTC clock test, a safety clock and a nixie tube.
The testing platform CAN realize the function test of DVCOM-2 board (part numbers 42015-.
The testing platform CAN realize the function test of DVCOM-2 board (part number 42015-.
The test platform can realize the on-load tests of 3.3VDC, 5VDC and 12VDC of the CPB board.
The testing platform can realize the corresponding state testing of a single relay normally closed/normally open contact of the HSS board and the simultaneous testing of 19 channels corresponding to the A/B channels respectively.
The test platform can realize main frequency test, AD circuit BIT test, single-channel current test, single-channel state read-back test, 24-channel simultaneous test, CPU1/2 internal communication CRC test, overvoltage test, undervoltage test, AD chip selection test, 24-channel century collection high 4-BIT comparison test and IOBUS bus test of the VDI-3 board single chip microcomputer.
The test platform can realize DWU board DATAPLUG read-write test, work network port test, debugging serial port test, 110V input acquisition test, awakening output test, indicator lamp test, USB interface test, EEPROM read-write test, power-down retention time test, eMMC storage test, CPU frequency test, RTC clock test and FLASH read-write test.
The test platform CAN realize ATO function test, RS422 serial port test, RS485 serial port test, DTG interface test, work network port test, CAN port communication test, MVB function test, TRDP function test, DATAPLUG read-write test and SPIEEPROM read-write test of the TCN board.
The test platform can realize the SWEC board working network port message transceiving test, the DATAPLUG read-write test, the debugging network port test, the debugging serial port test, the electronic tag reading test and the fault feedback test.
The test platform can realize the strip-load tests of 5VDC, 24VDC and 12VDC of the VPU-3 board.
As shown in fig. 3 to 7, according to the internal test principle of the product, the test host establishes a connection with the ICC200 main control board VLE-2 and the VIOC board through network communication, and the self-test and mutual test results of the internal functions of each board card inside the VIOM case and the CPM case are transmitted to the upper computer through the cPCI bus or the IOBUS.
According to the communication node testing principle, the testing equipment provides communication simulators such as CAN, RS485, RS422, RS232 and network nodes, point-to-point communication of products is achieved, and communication quality of VIOC, VLE-2 and DVCOM-2 boards is verified.
The product power driving output testing principle utilizes a digital multimeter, an electronic load, a program control power supply and the like to test the state of a product under power driving output, such as voltage or resistance under the condition that a PSB (power supply bus), DSB (digital signal bus) and FDB (fully drawn bus) board relay is conducted.
According to the input test principle of the product, a signal generator and a program-controlled power supply are used for simulating different input voltages for the product, and the working state of the VDI board card is read back through a test instruction.
And (3) a product signal output test principle, namely testing a VPB downlink waveform output signal by using an acquisition card.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A hardware maintenance test platform of a subway vehicle-mounted signal control device is characterized by comprising a PXI control cabinet, a signal conditioning cabinet, a test cabinet, a main power supply control module and an upper computer, wherein the PXI control cabinet is respectively connected with the signal conditioning cabinet, the test cabinet, the main power supply control module and the upper computer, and the main power supply control module is respectively connected with the signal conditioning cabinet and the test cabinet; the signal conditioning case is used for connecting the testing case and a tested product.
2. The hardware maintenance test platform of the signal control equipment on the subway vehicle as claimed in claim 1, wherein said PXI control cabinet includes NI PXIe-8840 controller and PXI-2567 external relay driver connected to NI PXIe-8840 controller respectively, PXI-7841 multifunctional reconfigurable I/O module, PXIe-5641R intermediate frequency transceiver, PXIe-4080 digital multimeter, PXI-8513CAN interface module, PXI-8431 serial instrument control module, PXIe-5114 oscilloscope, PXI-2529 matrix switch module.
3. The hardware maintenance test platform of the on-board signal control equipment of the subway of claim 2, wherein the signal conditioning chassis comprises a speed signal conditioning board, a beacon signal conditioning board, a relay driver board, an IMP modulation board, a matrix routing board, a serial port board, a PWM output board, a DMM switching board, a load board, a VPB branching board, a DTG board, an oscilloscope board and a power switching board.
4. The hardware maintenance test platform of the signal control equipment on the subway vehicle as claimed in claim 3, wherein said matrix routing board card is used for connecting the resources of PXI control cabinet to the matrix switch;
the serial port board is used for connecting the simulated industrial communication nodes of the PXI control cabinet to the matrix switch and comprises 1 CAN channel, 2 RS232 channels and 2 RS485/422 channels;
the relay driving board card is connected with a PXI-2567 external relay driver;
the PWM output board is connected with the PXI-7841 multifunctional reconfigurable I/O module.
5. The platform of claim 1, wherein the platform further comprises a network switch for connecting a tested product and the PXI control cabinet.
6. The hardware maintenance test platform of the on-board signal control device for the subway according to claim 1, wherein said platform further comprises a programmable dc electronic load for simulating an on-board test of the tested HSS board, a programmable power supply for providing an on-board test power supply, and a serial port switch for supporting multi-serial port communication.
7. The platform of claim 1, wherein the platform further comprises an MCU, an FPGA, a CPLD program burning interface, and a DATAPLUG IIC testing interface.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113325823A (en) * | 2021-05-31 | 2021-08-31 | 重庆川仪速达机电有限公司 | Automatic testing system and method for diesel engine monitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325823A (en) * | 2021-05-31 | 2021-08-31 | 重庆川仪速达机电有限公司 | Automatic testing system and method for diesel engine monitor |
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