CN100533107C - Train running monitoring device comprehensive test method and comprehensive testbench - Google Patents

Train running monitoring device comprehensive test method and comprehensive testbench Download PDF

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Publication number
CN100533107C
CN100533107C CNB2007100346508A CN200710034650A CN100533107C CN 100533107 C CN100533107 C CN 100533107C CN B2007100346508 A CNB2007100346508 A CN B2007100346508A CN 200710034650 A CN200710034650 A CN 200710034650A CN 100533107 C CN100533107 C CN 100533107C
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test
board
signal
under test
plug
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CN101021451A (en
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申竹林
朱明�
孙泽勇
龙杰
李中成
宋瑞霞
谢文乾
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Hunan CRRC Times Signal and Communication Co Ltd
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Zhuzhou CSR Times Electric Co Ltd
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Abstract

A comprehensive testing method and testboard of train monitor device. The method is a comprehensive testing system based on computer integrated control. It adopts multi-communication mode to complete data exchange. On one hand, according to the vehicle condition simulated by comprehensive testbord, various high precision actuating signal are generated for normal working of control device, including analog, digital and communication signal. On the other hand, test various output signal of monitor device. Finally, test device by combining function relationship, board and channel grade of tested device. Three objects are communicated by computer directly, including programmed power, testboard host machine and card testing adapter. Communication from computer to programmed power and card testing adapter adopts RS232 mode, to testboard host machine adopts USB1.0 mode. Main control panel and communication management penal in testboard host machine adopts two-gate RAM to change data.

Description

A kind of train operation monitoring device integrated test facility and combined test stand
Technical field
The invention belongs to a kind of dedicated test method and apparatus of electrical system management and monitoring device, refer in particular to a kind of electric locomotive supervising device integrated test facility and device; Be mainly used in the test of train operation monitoring device.
Background technology
Train operation monitoring and recording device is called for short supervising device, is to ensure that train operating safety is the train speed control device of fundamental purpose, is the railway main guarantee equipment of speed raising for several times.Present stage, widely used supervising device was the LKJ2000 type train operation monitoring and recording device of succeeding in developing in 1999, the standard configuration of system comprises a main frame and two displays, have 14 blocks of 6U plug-in units in the main frame, form the identical hot backup redundancy system of two covers.
In the past, portable test board is all used in the debugging of LKJ2000 type monitor recording device always, but the emphasis of portable test board is a whole set of supervising device function debugging, but can't debug separately each plug-in unit of LKJ2000 type supervising device, when therefore each applying unit is keeped in repair each plug-in unit of LKJ2000 type supervising device, each plug-in unit can only be inserted in the mainframe box, by observing the ruuning situation maintenance of a whole set of supervising device.And if when certain signal of certain plug-in unit carried out accuracy test, can only rely on multiple instrument combination to finish together, complicated operation, reliability is low.Therefore necessary this is improved.
Summary of the invention
The objective of the invention is to test deficiency, propose a kind of integrated test facility and combined test stand that can comprehensively detect detection, debugging and the maintenance of train operation monitoring and recording device plug-in unit and complete machine at existing supervising device.
The objective of the invention is to be achieved through the following technical solutions, a kind of train operation monitoring device integrated test facility is the integrated test system of the integrated control of computing machine.Adopt multiple communication mode to finish the exchange of data, on the one hand,, generate the required all kinds of high precision pumping signals of the normal operation of supervising device, comprise simulating signal, digital signal and signal of communication according to supervising device combined test stand simulation locomotive conditions; On the other hand, detect the various output signals of supervising device, also comprise simulating signal, digital signal and signal of communication, last, in conjunction with the various funtcional relationships of equipment under test, plate level and channel level detect the quality of equipment under test.The object of the direct communication of computing machine has three: programmable power supply, test board main frame and plug-in unit test adapter.Wherein, computing machine is the communication modes that adopts RS232 to programmable power supply and plug-in adapter, has then adopted the communication modes of USB1.0 to the tester main frame, and has adopted the dual port RAM swap data between the master control borad of test board main frame inside and the telecommunication management plate.
Total system is made of test board mainframe, test board operator's console and relevant connection cable and power-supply system.Be divided into 8 subsystems, be respectively power subsystem, power supply test subsystem, communication subsystem, signals collecting subsystem, signal generation subsystem, signal allocation subsystem, VME bus control subsystem and software subsystem.Signal generation and distribution system, communication system, power-supply system and electronic load system all are integrated in the test board mainframe, and universal adapter is installed on the operator's console, can control the VME bus of Board Under Test.
Wherein: described signal generating system comprises corresponding locomotive pipe pressure, former limit circuit, original edge voltage, speed, bavin speed, operating mode, the aanalogvoltage generation circuit (0-10VDC 8 tunnel) of colour light signal, random wave signal generator (6 tunnel), program control high-pressure generating circuit (0-130VDC 1 tunnel) respectively at least.Described signal acquiring system comprises tension measuring circuit, frequency measurement circuit, the current measurement circuit of various voltage signals, rate signal and crosspointer table drive signal on the corresponding locomotive of difference at least.The function of described signal distribution system is that the function with each subsystem is assigned on the corresponding pin of Board Under Test as requested.LKJ2000 type supervising device total system includes 37 kinds of different signals, and the contact pin of its X2 socket is 48, and whole signal distribution system requires 37 kinds of signals are connected arbitrarily on 48 points.Described communication system is not considered under the situation of speed, uses the simple and highly versatile of RS232 communication modes, and in total system, the working power of tested plug-in unit and VME bus controller and other parts of system are relatively independent, are two RS232 equipment.The data volume of test board main frame is big, and requiring provides two-way CAN signal, is a USB1.1 equipment, and speed is 2M.The object of the direct communication of computing machine has three, programmable power supply (second source assembly), test board main frame and plug-in unit test adapter.Inner each plug-in unit of test board main frame adopts the dual port RAM swap data by self-defined parallel bus communication between master control borad and the telecommunication management plate.Described power-supply system is divided into three classes with the total system power supply, i.e. test board host work power supply, Board Under Test (plug-in unit) working power and tested machine (complete machine) working power, and system's power supply is AC220V.High direct voltage signal and power supply characteristic are close, are installed in the main frame as a plug-in unit equally, export adjustable DC50V and adjustable DC110V, during the plug-in unit test, output to digital quantity tablet and digital quantity respectively and go into ejecting plate.What described VME bus control system adopted is the VME bus, and the VME bus system of test board requires to receive the RS232 signal from computing machine, generates the VME bus signals simultaneously, and the control Board Under Test is realized the total line traffic control of VME.Described power detecting system adopts ripe electronic load circuit, and test board inside provides 7 electronic load modules, respectively 7 tunnel of corresponding power plug-in unit outputs.
Total system comprises first power supply module, second source assembly, main frame, test board main frame, electronic load box, plug-in unit test adapter, LCD, Tool Cabinet from structure, wherein first power supply module, second source assembly, main frame, test board main frame, electronic load box, plug-in unit test adapter are installed in mainframe inside, form mainframe; Plug-in unit test adapter, LCD, Tool Cabinet are formed operator's console.Be connected by stube cable between two parts.
Described mainframe is the core of system, and all test processs comprise that processes such as power supply generation, circuit formation, data acquisition, data processing and preservation all occur in the test board mainframe.Finish system power supply, various test signal produces and work such as the collection of data and processing.The test board main frame is made up of first power supply module, second source assembly, main frame, test board main frame, electronic load box, each parts all accounts for one deck of main frame, when some parts break down, can after untiing stube cable, extract maintenance out from the front.Wherein, described first power supply module provides the two-way direct supply, and wherein one the tunnel is that 0-200V is adjustable, uses for system test and power insert test; Another road is fixing 110V, is that tester main frame and plug-in unit test adapter are powered.Described second source assembly provides 5V, 15V, 24V three distance control direct supplys, by computer control output voltage and electric current, for the plug-in unit test provides working power.Described main frame is an industrial control computer, the management of responsible test data, storage etc.Be furnished with 1 multi-functional integrated circuit board NI 6014 in the main frame, this jig has the output and the detection of high-precision analog quantity, frequency quantity.Described test board main frame is a most important parts in this test board, have 12 blocks of plug-in units, be followed successively by second source plug-in unit, first power insert, complete machine interface board, matrix switch board (4 interchangeable), fabric interface plate, master control borad, Signal Spacing plate, telecommunication management plate, one-level switch boards from left to right.This assembly provide when test needed various signals and according to tested object tested tissue circuit, be the main place of testing.Described electronic load box is the resistive load simulator, is used for the power insert test.Electronic load box inside has 7 identical load blocks (B1-B7), each modular structure is identical, be subjected to computer control, 7 road output voltages of the corresponding monitor recording device power insert plate of difference, during operate as normal, by adjusting the electronic load module, make the certain electric current of certain road voltage output of power insert plate.Wherein, be test-12V voltage, other is furnished with No. one buffer circuit (G1).Described test board operator's console is an operating platform, comprises adapter part and computer peripheral equipment part, and man-machine interface is provided.Be divided into adapter district and operational zone.The adapter district is divided into adapter circuit part and two parts of Board Under Test mounting platform again, links to each other by square type plug between two parts.Between adapter circuit and the mainframe stube cable is arranged, the test signal of various veneers directly has been added on the Board Under Test by the adapter circuit part after being produced by mainframe at last.Except that computer peripherals such as LCD, keyboard, mouse, also comprise the plug-in unit test adapter on the operator's console, during the plug-in unit test, Board Under Test directly is inserted in to be tested on the operator's console adapter; During system test, connect test board and tested complete machine with the complete machine stube cable, the operator finishes test on host computer.Described stube cable is the connection lead between the device.(single-board testing) in actual use has cable to link to each other between mainframe box and the operator's console.Wherein, there is cable to link to each other between output aviation plug XW1, the XW2 of mainframe and adapter rear end aviation plug X19Z, X51Z, COM1 and the X10Z, be used for single-board testing, output aviation plug XW3, the XW4 of mainframe then are directly connected to tested complete machine, are used for system test.Described power-supply system is divided into three classes, i.e. system works power supply, Board Under Test (veneer) working power and tested machine (complete machine) working power.Wherein, the system works power supply is positioned at 6U mainframe box inside, is respectively the first power supply module plug-in unit and second source assembly plug-in unit.The input voltage of two power inserts is DC110V, is provided by the fixedly direct-current switch power supply in first power supply module, and this Switching Power Supply is converted into fixing DC110V with AC220V.Wherein, the output of first power insert DC12V, DC5V, DC3V3 are the power supply of 6U cabinet; The second source plug-in unit is exported adjustable DC50V and adjustable DC110V, during single-board testing, outputs to digital quantity tablet and digital quantity respectively and goes into ejecting plate.When carrying out single-board testing, the required working power DC5V of veneer work, DC15V and DC24V provide by second source assembly (programmable power supply), so, when carrying out single-board testing, must drive programmable power supply earlier, the output voltage of programmable power supply is as follows: OUTPUT1:24V, OUTPUT2:15V, OUTPUT3:5V.Tested machine (complete machine) working power is by being provided by the adjustable direct-current switch power supply in first power supply module, operating personnel can directly regulate the potentiometer on the first power supply module panel, control the output of adjustable direct-current switch power supply, the output voltage of control power cabinet in the simulation train travelling process, in actual use, require supervising device can be between DC77V-DC132V operate as normal.Also have a display control switch on the panel of adjustable direct-current switch power supply, operating personnel can select the output voltage or the output current of display power supply.
The present invention can test the complete machine and the plug-in unit of LKJ2000 type supervising device, can test the complete machine and the plug-in unit of LKJ93 type supervising device again.Have powerful, the reliability height, man-machine interface close friend, system features in convenient is convenient to safeguard that characteristics such as good expandability and compatibility are arranged.Can satisfy the various requirement that detection, debugging and the maintenance etc. of the plug-in unit of test LKJ-2000 type supervising device and LKJ-93 type supervising device and complete machine detect comprehensively fully.
Description of drawings
Fig. 1 is a system of the present invention front view;
Fig. 2 is a Portable Monitoring Set software test instrument front view (FV) of the present invention;
Fig. 3 is a cable connection diagram of the present invention;
Fig. 4 is a communication synoptic diagram of the present invention;
Fig. 5 is a power-supply system synoptic diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
By accompanying drawing as can be seen, the present invention is a kind of train operation monitoring device integrated test facility, is the integrated test system of the integrated control of computing machine.Adopt multiple communication mode to finish the exchange of data, on the one hand,, generate the required all kinds of high precision pumping signals of the normal operation of supervising device, comprise simulating signal, digital signal and signal of communication according to supervising device combined test stand simulation locomotive conditions; On the other hand, detect the various output signals of supervising device, also comprise simulating signal, digital signal and signal of communication, last, in conjunction with the various funtcional relationships of equipment under test, plate level and channel level detect the quality of equipment under test.In the total system design process, adopted multiple communication mode to finish the exchange of data, as shown in Figure 4: the object of the direct communication of computing machine has three: programmable power supply 30, system test board main frame 32 and plug-in unit test adapter 36.Wherein, computing machine 33 adopts the communication modes of RS232 to the communication the 31, the 35th of programmable power supply 30 and plug-in adapter 36, to 34 communication modes that adopt USB1.0 of communication of tester main frame, and the dual port RAM swap data is adopted in the systematic master control board 37 of system test board main frame 32 inside and the communication between the system communication management board 38 39.
Total system is made of test board mainframe, test board operator's console and relevant connection cable and power-supply system.Be divided into 8 subsystems, be respectively power subsystem, power supply test subsystem, communication subsystem, signals collecting subsystem, signal generation subsystem, signal allocation subsystem, VME bus control subsystem and software subsystem.Signal generation and distribution system, communication system, power-supply system and electronic load system all are integrated in the test board mainframe, and universal adapter is installed on the operator's console, can control the VME bus of Board Under Test.
Wherein: described signal generating system comprises corresponding locomotive pipe pressure, former limit circuit, original edge voltage, speed, bavin speed, operating mode, the aanalogvoltage generation circuit (0-10VDC 8 tunnel) of colour light signal, random wave signal generator (6 tunnel), program control high-pressure generating circuit (0-130VDC 1 tunnel) respectively at least.Described signal acquiring system comprises tension measuring circuit, frequency measurement circuit, the current measurement circuit of various voltage signals, rate signal and crosspointer table drive signal on the corresponding locomotive of difference at least.The function of described signal distribution system is that the function with each subsystem is assigned on the corresponding pin of Board Under Test as requested.LKJ2000 type supervising device total system includes 37 kinds of different signals, and the contact pin of its X2 socket is 48, and whole signal distribution system requires 37 kinds of signals are connected arbitrarily on 48 points.Described communication system is not considered under the situation of speed, uses the simple and highly versatile of RS232 communication modes, and in total system, the working power of tested plug-in unit and VME bus controller and other parts of system are relatively independent, are two RS232 equipment.The data volume of test board main frame is big, and requiring provides two-way CAN signal, is a USB1.1 equipment, and speed is 2M.The object of the direct communication of computing machine has three, programmable power supply (second source assembly), test board main frame and plug-in unit test adapter.Inner each plug-in unit of test board main frame adopts the dual port RAM swap data by self-defined parallel bus communication between master control borad and the telecommunication management plate.Described power-supply system is divided into three classes with the total system power supply, i.e. test board host work power supply, Board Under Test (plug-in unit) working power and tested machine (complete machine) working power, and system's power supply is AC220V.High direct voltage signal and power supply characteristic are close, are installed in the main frame as a plug-in unit equally, export adjustable DC50V and adjustable DC110V, during the plug-in unit test, output to digital quantity tablet and digital quantity respectively and go into ejecting plate.What described VME bus control system adopted is the VME bus, and the VME bus system of test board requires to receive the RS232 signal from computing machine, generates the VME bus signals simultaneously, and the control Board Under Test is realized the total line traffic control of VME.Described power detecting system adopts ripe electronic load circuit, and test board inside provides 7 electronic load modules, respectively 7 tunnel of corresponding power plug-in unit outputs.
Total system comprises first power supply module 1, second source assembly 2, main frame 3, test board main frame 4, electronic load box 5, plug-in unit test adapter 6, LCD 7, Tool Cabinet 8 from structure, and wherein first power supply module 1, second source assembly 2, main frame 3, test board main frame 4, electronic load box 5 are installed in mainframe inside; Plug-in unit test adapter 6, LCD 7, Tool Cabinet 8 are formed checkout console.Be connected by stube cable between two parts.
Described mainframe 9 is cores of system, and all test processs comprise that processes such as power supply generation, circuit formation, data acquisition, data processing and preservation all occur in the test board mainframe.Finish system power supply, various test signal produces and work such as the collection of data and processing.The test board main frame is made up of first power supply module 1, second source assembly 2, main frame 3, test board main frame 4, electronic load box 5, each parts all accounts for one deck of main frame, when some parts break down, can after untiing stube cable, extract maintenance out from the front.Wherein, described first power supply module 1 provides the two-way direct supply, and wherein one the tunnel is that 0-200V is adjustable, uses for system test and power insert test; Another road is fixing 110V, is that tester main frame and plug-in unit test adapter are powered.Described second source assembly 2 provides 5V, 15V, 24V three distance control direct supplys, by computer control output voltage and electric current, for the plug-in unit test provides working power.Described main frame 3 is an industrial control computer, the management of responsible test data, storage etc.Be furnished with 1 multi-functional integrated circuit board NI6014 in the main frame, this jig has the output and the detection of high-precision analog quantity, frequency quantity.Described test board main frame 4 is most important parts in this test board, have 12 blocks of plug-in units, be followed successively by second source assembly 10, first power supply module 11, complete machine interface board 12, matrix switch board 13,14,15,16 (4 interchangeable), fabric interface plate 17, master control borad 18, Signal Spacing plate 19, telecommunication management plate 20, one-level switch boards 21 from left to right.This assembly provide when test needed various signals and according to tested object tested tissue circuit, be the main place of testing.Described electronic load box 5 is the resistive load simulator, is used for the power insert test.Electronic load box 5 inside have 7 identical load blocks (B1-B7), each modular structure is identical, be subjected to computer control, 7 road output voltages of the corresponding monitor recording device power insert plate of difference, during operate as normal, by adjusting the electronic load module, make the certain electric current of certain road voltage output of power insert plate.Wherein, be test-12V voltage, other is furnished with No. one buffer circuit (G1).Described test board operator's console is an operating platform, comprises adapter part and computer peripheral equipment part, and man-machine interface is provided.Be divided into adapter district and operational zone.The adapter district is divided into adapter circuit part and two parts of Board Under Test mounting platform again, links to each other by square type plug between two parts.Between adapter circuit and the mainframe stube cable is arranged, the test signal of various veneers directly has been added on the Board Under Test by the adapter circuit part after being produced by mainframe at last.Except that computer peripherals such as LCD, keyboard, mouse, also comprise plug-in unit test adapter 7 on the operator's console, during the plug-in unit test, Board Under Test directly is inserted in to be tested on the operator's console adapter; During system test, connect test board and tested complete machine with the complete machine stube cable, the operator finishes test on host computer.Described stube cable is the connection lead between the device as shown in Figure 3.(single-board testing) in actual use has cable to link to each other between mainframe box and the operator's console.Wherein, there is cable to link to each other between the output aviation plug 26 (XW1) of mainframe, 27 (XW2) and adapter rear end aviation plug 22 (X19Z), 23 (X51Z), 24 (COM1) and 25 (X10Z), be used for single-board testing, output aviation plug XW3, the XW4 of mainframe then are directly connected to tested complete machine, are used for system test.Described power-supply system is divided into three classes (as shown in Figure 4), i.e. system works power supply, Board Under Test (veneer) working power and tested machine (complete machine) working power.Wherein, the system works power supply is positioned at 6U mainframe box inside, is respectively first power insert and second source plug-in unit.The input voltage of two power inserts is DC110V, is provided by the fixedly direct-current switch power supply in first power supply module, and this Switching Power Supply is converted into fixing DC110V with AC220V.Wherein, the output of first power insert DC12V, DC5V, DC3V3 are the power supply of 6U cabinet; The second source plug-in unit is exported adjustable DC50V and adjustable DC110V, during single-board testing, outputs to digital quantity tablet and digital quantity respectively and goes into ejecting plate.When carrying out single-board testing, the required working power DC5V of veneer work, DC15V and DC24V provide by second source assembly (programmable power supply), so, when carrying out single-board testing, must drive programmable power supply earlier, the output voltage of programmable power supply is as follows: OUTPUT1:24V, OUTPUT2:15V, OUTPUT3:5V.Tested machine (complete machine) working power is by being provided by the adjustable direct-current switch power supply in first power supply module, operating personnel can directly regulate the potentiometer on the first power supply module panel, control the output of adjustable direct-current switch power supply, the output voltage of control power cabinet in the simulation train travelling process, in actual use, require supervising device can be between DC77V-DC132V operate as normal.Also have a display control switch on the panel of adjustable direct-current switch power supply, operating personnel can select the output voltage or the output current of display power supply.
Software systems are subsystems of a complexity, totally use VB and develop in conjunction with LabVIEW.
The required signal to be processed of supervising device combined test stand comprises the outputting standard signal and detects input signal.Comprising voltage signal, be pressure transducer output, the corresponding 0-1000Kpa of DC0-5V sends to FPGA (XC2S100-5TQ144I) by the plate internal bus with instruction by MPU (C8051F020), produce 12 bit data by FPGA and deliver to DA converter (DA7724), output DC0-5V voltage signal; Sine wave signal is primary current/voltage sensor output signal, by the plate internal bus instruction is sent to FPGA (XC2S100-5TQ144I) by MPU (C8051F020), produces 12 bit data by FPGA and delivers to DA converter (DA7541), output waveform signals; Square-wave signal, be velocity transducer output signal (the corresponding locomotive speed 800Km/H of 5000Hz), by the plate internal bus instruction is sent to FPGA (XC2S100-5TQ144I) by MPU (C8051F020), produce 12 bit data by FPGA and deliver to DA converter (DA7541), output waveform signals; D. c. voltage signal is colour light signal and working condition signal, adopts the high pressure discharge circuit, will control voltage amplification to 0-135V, simulation colored lights and working condition signal; The CAN signal of communication is the communication level signal.
When the supervising device combined test stand carries out single-board testing, at first Board Under Test is divided into some functional circuits, then the functional circuit of Board Under Test is tested.With analog quantity go into/ejecting plate is an example, this plate includes pipe and presses testing circuit, primary current/voltage detecting circuit, velocity shaping circuit, crosspointer table driving circuit etc.Manage when pressing test, at first press input pin to add the 0-5V voltage signal at pipe, the output valve of simulative tube pressure sensor is carried out the A/D conversion after pipe presses testing circuit that this voltage is isolated, and transformation result is delivered to the VME bus, and adapter reads this value.In the whole test process, the magnitude of voltage precision that simulative tube is pressed is 0.2%, and the VME bus reads does not almost have error.
(plug-in unit test) in actual use has cable to link to each other between mainframe and the operator's console.There is cable to link to each other between output aviation plug XW1, the XW2 of mainframe and adapter rear end aviation plug X19Z, X51Z, COM1 and the X10Z, is used for the plug-in unit test; Output aviation plug XW3, the XW4 of mainframe then are directly connected to tested complete machine, are used for system test.The test process of several situations is described respectively below.
One, monitoring host computer board test step
Concrete testing procedure is as follows:
1, slice is changed
Change Board Under Test U3, U4 chip into test chip U3, U4.
2, power-on self-test
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4, this voltage is from the programmable power supply output of second source assembly, and this voltage is stable, does not generally have error.
After powering on, the self check of monitoring host computer plate panel leds was gone out 2 seconds after bright 2 seconds entirely entirely, entered duty then.The self check content comprises: internal RAM, external RAM (U11, U12, U13, U14), data-carrier store (U5, U6), program storage (U3, U4), real-time timepiece chip (U15).Wherein, external RAM (U11, U12, U13, U14) is if damage, and with fail self-test, system can't start.In addition, computing machine is intercepted the CANA passage and is obtained self check information, if the respective chip of CANA passage is damaged (as U21, U23), can cause the System self-test failure equally, but this moment, the hardware check of this circuit board was finished, and panel leds shows that this plate is working properly.Remaining chip (comprising CANB) is damaged will can not cause fail self-test, in addition, because this board test need be changed chip U3, U4, can't test by the Board Under Test fault that U3, U4 fault cause, can not change U3, U4 powers on Board Under Test, at this moment, Board Under Test should pass through hardware check, otherwise can judge U3, U4 fault.
The fault title Concrete manifestation Case study The major failure reason Remarks
The hardware check failure Board Under Test panel leds display abnormality, test interface prompting fail self-test Board Under Test CPU minimum system operation irregularity CPU, U11-U14 damage
The System self-test failure The Board Under Test panel leds shows normal, test interface prompting fail self-test Board Under Test CPU minimum system operation irregularity, the CANA channel abnormal U18, U21, U23 damage
Other chip problems, test board directly show fault on operation interface.
3, CANA, CANB voltage measurement
Voltage between the D26-Z26 of measurement Board Under Test should be 5V ± 0.25V (CANA), and the voltage between the D28-Z28 of measurement Board Under Test should be 5V ± 0.25V (CANB).
The fault title Concrete manifestation Case study The major failure reason Remarks
CANA level fault The CANA level detection value is unusual U21 damages
CANB level fault The CANB level detection value is unusual U22 damages
4, CANA, CANB functional measurement
The frame data that computing machine CAN mouth is sent out special respectively to two mouths of CANA, CANB, and receive the data that CANA, CANB return.
The fault title Concrete manifestation Case study The major failure reason Remarks
The CANA communication failure CANA communication check value is unusual U17, U24 damage
The CANB communication failure CANB communication check value is unusual U18, U23 damage
In fact, panel leds is after self check finishes, and 2B, 3B lamp also have indication to the working condition of two-way CAN:
The 2B lamp The 3B lamp CANA CANB
Bright Bright Normally
Go out Bright Normally
Go out Undesired Undesired
5, dump mouth test
Connect Board Under Test dump mouth and adapter dump mouth with the dump line, detect the 12V voltage of dump mouth, then, adapter is sent out frame data to Board Under Test, and receives the data that Board Under Test returns.
The fault title Concrete manifestation Case study The major failure reason Remarks
Dump mouth fault Dump mouth detected value is unusual U25 damages
Because the 12V working power of dump mouth directly connects the self-test platform, does not generally have fault.
6, speed and bavin speed test
Send the square wave (100HZ, 1000HZ, 5000HZ) of characteristic frequency to three speed passages, send the square wave (50HZ, 100HZ) of characteristic frequency to bavin speed passage, after CPU receives this class frequency signal, transmit current frequency by CANA, this is organized, and data are basic identical to get final product error free index.
The fault title Concrete manifestation Case study The major failure reason Remarks
The frequency channel fault Detected value and set-point are not inconsistent U28 damages
7, insulated joint test
Apply the low level pulse of 1 30MS width to Board Under Test D20, whether Board Under Test receives the insulation joint signal by the CANA feedback.
The fault title Concrete manifestation Case study The major failure reason Remarks
The insulation joint fault Insulated joint test reports an error U35 damages
8, system failure test
Whether the system failure signal (20B pin) that detects Board Under Test output is 400HZ ± 10HZ.
The fault title Concrete manifestation Case study The major failure reason Remarks
" system failure " fault System failure test reports an error U28 damages
9, time clock feature test
Whether the range estimation current time shows that with Board Under Test the time is identical, and the manual record result.This project testing is mainly checked the current chip time, and requires the operator that the chip time is adjusted to current correct time.Maybe can't regulate as time anomaly, then U15 damages.
10, test finishes
The single-board testing content of monitoring record plate includes this plate all dual inline type chip: U3, U4, U5, U6, U11, U12, U13, U14, U15, U21, U22, U25, U2 and corresponding optocoupler.
Two, terrestrial information board test step
Concrete testing procedure is as follows:
1, power-on self-test
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4, this voltage is from the programmable power supply output of second source assembly, and this voltage is stable, does not generally have error.
After powering on, the self check of terrestrial information plate panel leds was gone out 1 second after bright 1 second entirely entirely, again by entering duty behind the bright successively lamp of 1A-8A-8B-1B order.The self check content comprises: internal RAM, CANA internal RAM, CANB internal RAM, self-detection result is judged by seeing pilot lamp.
2, CANA, CANB functional test
The frame data that computing machine is sent out special respectively to two mouths of CANA, CANB, and receive the data that CANA, CANB return, the result judges by panel leds.
3, track signal test
Select different track signals by computer interface, Board Under Test output respective rail signal, available oscillograph is observed output waveform, also can judge by panel leds.
4, test finishes
The function singleness of this plate only is A/D conversion and the software processes process to the ground track signal, and the result after the processing directly shows by panel leds, gives simultaneously and appears the machine signal.When test board adds the respective track signal at port,, just finished the detection of inner dsp system, A/D change-over circuit and panel display circuit by observing panel leds.
Three, communication board testing procedure
Concrete testing procedure is as follows:
1, replacing program
The Board Under Test program storage is replaced by test chip (U2,27C256B).
2, power-on self-test
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4, this voltage is from the programmable power supply output of second source assembly, and this voltage is stable, does not generally have error.
After powering on, the self check of monitoring host computer plate panel leds, the self check content comprises: CPU internal RAM, external RAM (U6), CANA (U13), CANB (U14), self-detection result is judged by seeing pilot lamp.
2, CANA, CANB functional test
The frame data that computing machine is sent out special respectively to two mouths of CANA, CANB, and receive the data that CANA, CANB return.
3, RS0, RS1 functional test
The frame data that computing machine is sent out special respectively to two mouths of RS0, RS1, and receive the data that RS0, RS1 return.
4, watchdog function test
5, test finishes
Four, analog quantity is gone into/the ejecting plate testing procedure
Concrete testing procedure is as follows:
1, power-on self-test
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4;
Board Under Test Z28 connects the 15V power supply, and D30 connects 15V power supply ground;
Board Under Test B30 connects the 15V power supply, and Z30 connects 15V power supply ground;
Board Under Test D28 connects the 15V power supply, and B28 connects 15V power supply ground;
Open VME bus power source 12V, this group voltage is from the programmable power supply output of second source assembly, and this voltage is stable, does not generally have error.
2, pipe is pressed and is measured
Press 0 (B16), pipe to press 1 (D18), pipe to press 2 (Z18), pipe to press 3 (B20) port to apply-5V and 5V voltage at pipe respectively, the detection output valve of measure analog template, error should be less than 0.05V.
3, reference voltage is measured
Press 4 ports to add 2.5V voltage at pipe, the output valve of measure analog template should be 2.5V ± 0.2V.
4, primary current, original edge voltage are measured
Give between Board Under Test Z14-D16 and apply frequency=50HZ, the sine wave of amplitude=1V, the output valve of measure analog template should be 1.2V ± 0.1V.
5, speed passage O test
Select waveform=square wave
Apply frequency=100HZ for Board Under Test D10, the square wave of amplitude=10V detects the D8 frequency values, and error is ± 1HZ.
Apply frequency=5000HZ for Board Under Test D10, the square wave of amplitude=10V detects the D8 frequency values, and error is ± 50HZ.
Select waveform=sine wave
Apply frequency=2000HZ for Board Under Test D10, the sine wave of amplitude=5V detects the D8 frequency values, and error is ± 20HZ.
Apply frequency=5000HZ for Board Under Test D10, the sine wave of amplitude=5V detects the D8 frequency values, and error is ± 50HZ.
6, speed passage 1 test
Select waveform=square wave
Apply frequency=100HZ for Board Under Test B10, the square wave of amplitude=10V detects the Z6 frequency values, and error is ± 1HZ.
Apply frequency=5000HZ for Board Under Test B10, the square wave of amplitude=10V detects the Z6 frequency values, and error is ± 50HZ.
Select waveform=sine wave
Apply frequency=2000HZ for Board Under Test B10, the sine wave of amplitude=5V detects the Z6 frequency values, and error is ± 20HZ.
Apply frequency=5000HZ for Board Under Test B10, the sine wave of amplitude=5V detects the Z6 frequency values, and error is ± 50HZ.
7, speed passage 2 tests
Select waveform=square wave
Apply frequency=100HZ for Board Under Test Z10, the square wave of amplitude=10V detects the B6 frequency values, and error is ± 1HZ.
Apply frequency=5000HZ for Board Under Test Z10, the square wave of amplitude=10V detects the B6 frequency values, and error is ± 50HZ.
Select waveform=sine wave
Apply frequency=2000HZ for Board Under Test Z10, the sine wave of amplitude=5V detects the B6 frequency values, and error is ± 20HZ.
Apply frequency=5000HZ for Board Under Test Z10, the sine wave of amplitude=5V detects the B6 frequency values, and error is ± 50HZ.
8, bavin speed lane testing
Select waveform=sine wave
Give between Board Under Test B12-Z12 and apply frequency=5HZ, the sine wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
Give between Board Under Test B12-Z12 and apply frequency=200HZ, the sine wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
Select waveform=square wave
Give between Board Under Test B12-Z12 and apply frequency=6HZ, the square wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
Give between Board Under Test B12-Z12 and apply frequency=127HZ, the square wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
Give between Board Under Test B12-Z12 and apply frequency=254HZ, the square wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
Give between Board Under Test B12-Z12 and apply frequency=513HZ, the square wave of amplitude=5V detects the D6 frequency values, and error is ± 2HZ.
9, real speed test
Make real speed output 10mA electric current to instruction, current value should be 10mA ± 0.2Ma between detection Board Under Test Z24-D26.
Make real speed output 16mA electric current to instruction, current value should be 10mA ± 0.2Ma between detection Board Under Test Z24-D26.
10, speed limit test
Make speed limit output 10mA electric current to instruction, current value should be 10mA ± 0.2Ma between detection Board Under Test B26-Z26.
Make speed limit output 16mA electric current to instruction, current value should be 10mA ± 0.2Ma between detection Board Under Test B26-Z26.
11, odometer test
Make the odometer action to instruction, the test voltage value should be 23.5 ± 0.5V.
12, test finishes
Five, digital quantity tablet testing procedure
Concrete testing procedure is as follows:
1, powers on and self check
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4;
The 50VCS=height is observed panel leds, should be bright entirely.
50VCS=is low, observes panel leds, should be entirely and goes out.
2, L lane testing
Apply the 48V level for Board Under Test Z14, the value of sense channel O should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z14, the value of sense channel 0 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z14, the value of sense channel O should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z14, the value of sense channel O should be 0, and lamp goes out.
2, LU lane testing
Apply the 48V level for Board Under Test D16, the value of sense channel 1 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test D16, the value of sense channel 1 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test D16, the value of sense channel 1 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D16, the value of sense channel 1 should be 0, and lamp goes out.
3, U lane testing
Apply the 48V level for Board Under Test B16, the value of sense channel 2 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test B16, the value of sense channel 2 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test B16, the value of sense channel 2 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B16, the value of sense channel 2 should be 0, and lamp goes out.
4, U2 lane testing
Apply the 48V level for Board Under Test Z16, the value of sense channel 3 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z16, the value of sense channel 3 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z16, the value of sense channel 3 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z16, the value of sense channel 3 should be 0, and lamp goes out.
5, UU lane testing
Apply the 48V level for Board Under Test D18, the value of sense channel 4 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test D18, the value of sense channel 4 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test D18, the value of sense channel 4 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D18, the value of sense channel 4 should be 0, and lamp goes out.
6, HU lane testing
Apply the 48V level for Board Under Test B18, the value of sense channel 5 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test B18, the value of sense channel 5 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test B18, the value of sense channel 5 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B18, the value of sense channel 5 should be 0, and lamp goes out.
7, H lane testing
Apply the 48V level for Board Under Test Z18, the value of sense channel 6 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z18, the value of sense channel 6 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z18, the value of sense channel 6 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z18, the value of sense channel 6 should be 0, and lamp goes out.
8, B lane testing
Apply the 48V level for Board Under Test D20, the value of sense channel 7 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test D20, the value of sense channel 7 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test D20, the value of sense channel 7 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D20, the value of sense channel 7 should be 0, and lamp goes out.
9, B0 lane testing
Apply the 48V level for Board Under Test B20, the value of sense channel 8 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test B20, the value of sense channel 8 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test B20, the value of sense channel 8 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B20, the value of sense channel 8 should be 0, and lamp goes out.
10, B1 lane testing
Apply the 48V level for Board Under Test Z20, the value of sense channel 9 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z20, the value of sense channel 9 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z20, the value of sense channel 9 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z20, the value of sense channel 9 should be 0, and lamp goes out.
11, B2 lane testing
Apply the 48V level for Board Under Test D22, the value of sense channel 10 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test D22, the value of sense channel 10 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test D22, the value of sense channel 10 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D22, the value of sense channel 10 should be 0, and lamp goes out.
12, B3 lane testing
Apply the 48V level for Board Under Test B22, the value of sense channel 11 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test B22, the value of sense channel 11 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test B22, the value of sense channel 11 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B22, the value of sense channel 11 should be 0, and lamp goes out.
13, B4 lane testing
Apply the 48V level for Board Under Test Z22, the value of sense channel 12 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z22, the value of sense channel 12 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z22, the value of sense channel 12 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z22, the value of sense channel 12 should be 0, and lamp goes out.
14, B5 lane testing
Apply the 48V level for Board Under Test D24, the value of sense channel 13 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test D24, the value of sense channel 13 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test D24, the value of sense channel 13 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D24, the value of sense channel 13 should be 0, and lamp goes out.
15, B6 lane testing
Apply the 48V level for Board Under Test B24, the value of sense channel 14 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test B24, the value of sense channel 14 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test B24, the value of sense channel 14 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B24, the value of sense channel 14 should be 0, and lamp goes out.
16, B7 lane testing
Apply the 48V level for Board Under Test Z24, the value of sense channel 15 should be 1, and lamp is bright;
Apply the 38V level for Board Under Test Z24, the value of sense channel 15 should be 1, and lamp is bright;
Apply the 32V level for Board Under Test Z24, the value of sense channel 15 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z24, the value of sense channel 15 should be 0, and lamp goes out.
17, test finishes
Six, digital quantity is gone into/the ejecting plate testing procedure
Concrete testing procedure is as follows:
1, powers on and self check
Add 5V voltage between Board Under Test X2:DBZ2 and DBZ4;
The 110VCS=height is observed panel leds, and totally 8 lamps of 1A-4B is bright.
110VCS=is low, observes panel leds, and totally 8 lamps of 1A-4B goes out.
2, LW lane testing
Apply the 110V level for Board Under Test D2, the value of sense channel 0 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test D2, the value of sense channel 0 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test D2, the value of sense channel 0 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D2, the value of sense channel 0 should be 0, and lamp goes out.
3, XQ lane testing
Apply the 110V level for Board Under Test B2, the value of sense channel 1 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test B2, the value of sense channel 1 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test B2, the value of sense channel 1 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B2, the value of sense channel 1 should be 0, and lamp goes out.
4, XH lane testing
Apply the 110V level for Board Under Test Z2, the value of sense channel 2 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test Z2, the value of sense channel 2 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test Z2, the value of sense channel 2 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z2, the value of sense channel 2 should be 0, and lamp goes out.
5, QY lane testing
Apply the 110V level for Board Under Test D4, the value of sense channel 3 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test D4, the value of sense channel 3 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test D4, the value of sense channel 3 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D4, the value of sense channel 3 should be 0, and lamp goes out.
6, ZD lane testing
Apply the 110V level for Board Under Test B4, the value of sense channel 4 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test B4, the value of sense channel 4 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test B4, the value of sense channel 4 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B4, the value of sense channel 4 should be 0, and lamp goes out.
7, SBBAKO lane testing
Apply the 110V level for Board Under Test Z4, the value of sense channel 5 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test Z4, the value of sense channel 5 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test Z4, the value of sense channel 5 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test Z4, the value of sense channel 5 should be 0, and lamp goes out.
8, SBBAK1 lane testing
Apply the 110V level for Board Under Test D6, the value of sense channel 6 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test D6, the value of sense channel 6 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test D6, the value of sense channel 6 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test D6, the value of sense channel 6 should be 0, and lamp goes out.
9, SBBAK2 lane testing
Apply the 110V level for Board Under Test B6, the value of sense channel 7 should be 1, and lamp is bright;
Apply the 78V level for Board Under Test B6, the value of sense channel 7 should be 1, and lamp is bright;
Apply the 60V level for Board Under Test B6, the value of sense channel 7 should be 0, and lamp goes out;
Cancel the signal that applies to Board Under Test B6, the value of sense channel 7 should be 0, and lamp goes out.
10, XZ actuating of relay test
Make the XZ relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the XZ relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
11, JY actuating of relay test
Make the JY relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the JY relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
12, GF actuating of relay test
Make the GF relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the GF relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
13, BAKO actuating of relay test
Make the BAKO relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the BAKO relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
14, BAK1 actuating of relay test
Make the BAK1 relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the BAK1 relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
15, BAK2 actuating of relay test
Make the BAK2 relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the BAK2 relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
16, JJA actuating of relay test
Make the JJA relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the JJA relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
17, JJB actuating of relay test
Make the JJB relay closes to instruction, common port input DC110V, the magnitude of voltage of detection output terminal should be DC110V, and the corresponding pilot lamp of panel is bright;
To instruction the JJB relay is disconnected, common port input DC110V, the magnitude of voltage of detection output terminal should be 0V, and the corresponding pilot lamp of panel goes out.
18, system failure test
Add the 400HZ square-wave signal at system failure pin for instruction, detect the SYSFAIL pin and should be the high level and the system failure actuating of relay.
Give instruction with system failure pin ground connection, detection SYSFAIL pin should be low level and system failure relay is failure to actuate.
Seven, power panel testing procedure
Concrete testing procedure is as follows:
1, powers on and self check
Board Under Test is inserted in the 2000 type supply sockets, and power supply on the adapter panel left then by the switch three of switch power supply assembly one, and Board Under Test gets electric, and panel leds is bright entirely.
2, overvoltage test
Regulate the regulator potentiometer on the power supply module one, observe current magnitude of voltage, when magnitude of voltage is transferred to 160V ± 20V, the Board Under Test overvoltage protection, panel leds goes out entirely.
3, under-voltage test
Regulate the regulator potentiometer on the power supply module one, observe current magnitude of voltage, when magnitude of voltage is transferred to 40V ± 20V, the Board Under Test under-voltage protection, panel leds goes out entirely.
4,5V passage load testing
Nominal load is selected in the load of 5V passage, and when load current was 2.5A, the magnitude of voltage of 5V passage should be 5V ± 0.05V.
Select idling to carry the load of 5V passage, when load current was 0A, the magnitude of voltage of 5V passage should be 5V ± 0.05V.
5,12V passage load testing
Nominal load is selected in the load of 12V passage, and when load current was 0.25A, the magnitude of voltage of 12V passage should be 12V ± 0.5V.
Select idling to carry the load of 12V passage, when load current was 0A, the magnitude of voltage of 12V passage should be 12V ± 0.5V.
6 ,-12V passage load testing
Nominal load is selected in the load of general-12V passage, and when load current was 0.25A, the magnitude of voltage of-12V passage should be-12V ± 0.5V.
The load of general-12V passage selects idling to carry, and when load current was 0A, the magnitude of voltage of-12V passage should be-12V ± 0.5V.
7,15V1 passage load testing
Nominal load is selected in the load of 15V1 passage, and when load current was 0.3A, the magnitude of voltage of 5V passage should be 15V ± 0.5V.
Select idling to carry the load of 15V1 passage, when load current was 0A, the magnitude of voltage of 15V1 passage should be 15V ± 0.5V.
8,15V2 passage load testing
Nominal load is selected in the load of 15V2 passage, and when load current was 0.3A, the magnitude of voltage of 15V2 passage should be 15V ± 0.5V.
Select idling to carry the load of 15V2 passage, when load current was 0A, the magnitude of voltage of 15V2 passage should be 15V ± 0.5V.
9,15V3 passage load testing
Nominal load is selected in the load of 15V3 passage, and when load current was 2.0A, the magnitude of voltage of 15V3 passage should be 15V ± 1.5V.
Select idling to carry the load of 15V3 passage, when load current was 0A, the magnitude of voltage of 15V3 passage should be 15V ± 1.5V.
10,24V passage load testing
Nominal load is selected in the load of 24V passage, and when load current was 0.2A, the magnitude of voltage of 24V passage should be 24V ± 2V.
Select idling to carry the load of 24V passage, when load current was 0A, the magnitude of voltage of 24V passage should be 24V ± 2V.
11, test finishes
Eight, system test step
Concrete testing procedure is as follows:
1, preliminary work
A whole set of plug-in unit and is replaced by test chip with the program chip of two blocks of monitoring host computer plates (U3, U4) and communication board (U2) on deck.Plug-in unit is inserted in tested main frame.
Test process comprises test of A machine and the test of B machine, also can only insert the A machine or only insert the B machine, carries out single machine test.
2, power-on self-test
The power switch three of switch power supply assembly one, tested main frame gets electric, self check.The self check content comprises the content of synchronous communication and main frame self check, during single machine test, and the synchronous communication failure.
3, communication test
Communication test comprises two CAN mouths and two CAN mouths of communication board, two RS232 mouths and RS422 mouth of monitoring host computer plate.RS422 is a reserved opening, generally is unkitted.
4, original edge voltage, primary current test
Test board provides primary current and original edge voltage value (magnitude of voltage), and obtains detected value, Vout=1.2*Vin ± 0.1V by the CAN bus.
5, pipe is pressed test
Test board provides three-way connection (pipe) pressure value (magnitude of voltage), and obtains detected value by the CAN bus, and error should be less than 0.05V.
Test board provides reference voltage value, and obtains detected value by the CAN bus, and error should be less than 0.2V.
6, real speed, speed limit testing current
Test board sends instructions and makes real speed of supervising device output and speed limit output current, and obtains detected value by the CAN bus, and error should be less than 0.2mA.
7, colored lights test
Test board provides the DC50V colour light signal, is added in the respective input of supervising device, and obtains detected value by the CAN bus.
8, working condition measurement
Test board provides the DC110V working condition signal, is added in the respective input of supervising device, and obtains detected value by the CAN bus.
9, output relay test
Test board provides the output relay action command, and obtains detected value by the CAN bus.
10, system failure test
During test, need two blocks of monitoring record plates be extracted according to prompting, the test board timing, behind 180S ± 5S, the system failure actuating of relay.Test board sample automatically this time and judged result.
11, test automatically
Automatically test comprises A machine+B machine test process, and the project that each test process comprised is identical.
12, test finishes
Automatically test comprises A machine+B machine test process, and the project that each test process comprised is identical.

Claims (8)

1, a kind of train operation monitoring device integrated test facility, integrated test system for the integrated control of computing machine, it is characterized in that: adopt multiple communication mode to finish the exchange of data, on the one hand, according to supervising device combined test stand simulation locomotive conditions, generate the required all kinds of high precision pumping signals of the normal operation of supervising device; On the other hand, detect the various output signals of supervising device, also comprise simulating signal, digital signal and signal of communication, last, in conjunction with the various funtcional relationships of equipment under test, plate level and channel level detect the quality of equipment under test.
2, train operation monitoring device integrated test facility as claimed in claim 1, it is characterized in that: the object of the direct communication of computing machine has three: programmable power supply, test board main frame and plug-in unit test adapter; Wherein, computing machine is the communication modes that adopts RS232 to programmable power supply and plug-in adapter, has then adopted the communication modes of USB1.0 to the tester main frame, and has adopted the dual port RAM swap data between the master control borad of test board main frame inside and the telecommunication management plate.
3, train operation monitoring device integrated test facility as claimed in claim 1, it is characterized in that: described combined test stand adopts open test platform, testing procedure, test point are opened the user, for monitor recording device and contained various plug-in units provide various signals, guarantee the normal operation of monitor recording device and contained each plug-in unit and monitor recording device and contained each plug-in unit are carried out high precision measurement.
4, a kind of combined test stand of realizing the described train operation monitoring device of claim 1 integrated test facility, constitute by test board mainframe, test board operator's console and relevant connection cable and power-supply system, it is characterized in that: total system is divided into 8 subsystems, is respectively power subsystem, power supply test subsystem, communication subsystem, signals collecting subsystem, signal generation subsystem, signal allocation subsystem, VME bus control subsystem and software subsystem; Signal generation and distribution system, communication system, power-supply system and electronic load system all are integrated in the test board mainframe, and universal adapter is installed on the operator's console, can control the VME bus of Board Under Test.
5, combined test stand as claimed in claim 4, it is characterized in that: described combined test stand comprises first power supply module, second source assembly, main frame, test board main frame, electronic load box, plug-in unit test adapter, LCD, Tool Cabinet, and wherein first power supply module, second source assembly, main frame, test board main frame, electronic load box, plug-in unit test adapter are installed in mainframe inside; Plug-in unit test adapter, LCD, Tool Cabinet are formed operator's console; Be connected by stube cable between two parts.
6, combined test stand as claimed in claim 4 is characterized in that: described signal generating system comprises corresponding locomotive pipe pressure, former limit circuit, original edge voltage, speed, bavin speed, operating mode, the aanalogvoltage generation circuit of colour light signal, random wave signal generator, program control high-pressure generating circuit respectively at least; Described signal acquiring system comprises tension measuring circuit, frequency measurement circuit, the current measurement circuit of various voltage signals, rate signal and crosspointer table drive signal on the corresponding locomotive of difference at least;
The function of described signal distribution system is that the function with each subsystem is assigned on the corresponding pin of Board Under Test as requested; Described communication system is two RS232 equipment; Described power-supply system is divided into three classes with the total system power supply, i.e. test board host work power supply, Board Under Test working power and tested machine working power; What described VME bus control system adopted is the VME bus; Described power detecting system adopts ripe electronic load circuit.
7, combined test stand as claimed in claim 5 is characterized in that: described first power supply module provides the two-way direct supply, and wherein one the tunnel is that 0-200V is adjustable, uses for system test and power insert test; Another road is fixing 110V, is that tester main frame and plug-in unit test adapter are powered; Described second source assembly provides 5V, 15V, 24V three distance control direct supplys, by computer control output voltage and electric current, for the plug-in unit test provides working power.
8, combined test stand as claimed in claim 5, it is characterized in that: described test board main frame has 12 blocks of plug-in units, be followed successively by second source assembly, first power supply module, complete machine interface board, 4 block matrix switching motherboards, fabric interface plate, master control borad, Signal Spacing plate, telecommunication management plate, one-level switch boards from left to right; Described electronic load box is the resistive load simulator, is used for the power insert test; Described test board operator's console is an operating platform, comprises adapter part and computer peripheral equipment part, and man-machine interface is provided; Described stube cable is the connection lead between the device.
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