CN103454522B - Based on electronics spare part state of the art automatic checkout system and the method for PXI bus - Google Patents

Based on electronics spare part state of the art automatic checkout system and the method for PXI bus Download PDF

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Publication number
CN103454522B
CN103454522B CN201310342045.2A CN201310342045A CN103454522B CN 103454522 B CN103454522 B CN 103454522B CN 201310342045 A CN201310342045 A CN 201310342045A CN 103454522 B CN103454522 B CN 103454522B
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China
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module
pin
spare part
electronics spare
resistance
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CN103454522A (en
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王格芳
张东
陈国顺
牛刚
吕艳梅
夏明飞
韩宁
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Ordnance Technology Research Institute of General Armament Department of Chinese PLA
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Ordnance Technology Research Institute of General Armament Department of Chinese PLA
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Abstract

The invention discloses a kind of electronics spare part state of the art automatic checkout system based on PXI bus, it comprises the controller, PXI system, VPC connector, adapter, the keyboard be connected with controller, the display that are provided with automatic checkout system software; The PXI module that described PXI system inserts in associated socket in PXI cabinet respectively by PXI cabinet and more than 2 forms; Described adapter comprises System self-test adapter; Controller is connected by PXI bus with PXI cabinet; The signal end of each PXI module is connected with self-test adapter or dedicated test adapter through VPC connector; Described System self-test adapter comprises normalized current source, measuring resistance R, reference source circuit, square-wave generator, signal router N1-N3 and first to the 5th Copper Foil short-circuit line.Advantage of the present invention be adopt adapter make tested electronics spare part and PXI interface separation property good, make system possess good Universal and scalability; Detectable signal type is many, detects automaticity high.

Description

Based on electronics spare part state of the art automatic checkout system and the method for PXI bus
Technical field
The present invention relates to a kind of electronics spare part state of the art automatic checkout system based on PXI bus and method, applicable detected object is mainly the various intermediate frequency of electronics, low-frequency electronic spare part.
Background technology
Along with the raising of production technology and technological level, the various circuit board with the advanced technology such as high density, Advanced Packaging gets more and more, and also requires more and more higher to the test of circuit board.In circuit board testing in the past, adopting fixture composition test network or the method by welding testing weld pad on circuit board node always, in test process, requiring that the various circuit probe of tester's manual operation is tested.Adopt this traditional method to build circuit board testing system, the construction cycle is long, efficiency is low, cost is high, easily make mistakes.
The deficiency that existing electronics spare part Auto-Test System exists:
1.TPS(test program set) performance history is loaded down with trivial details, workload is large, and the test procedure dependence developed is strong, portable poor;
2.TPS development difficulty is comparatively large, high to developer's technical requirement.
3. test adapter versatility is poor, to the adaptor plate that different measurand often needs special exploitation corresponding, causes testing efficiency low and cost is higher.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of electronics spare part state of the art automatic checkout system based on PXI bus and method.
The present invention adopts following technical scheme:
The present invention includes controller, PXI system, VPC connector, adapter, the keyboard be connected with controller, display that automatic checkout system software is installed; The PXI module that described PXI system inserts in associated socket in PXI cabinet respectively by PXI cabinet and more than 2 forms; Described adapter comprises System self-test adapter; Described controller is connected by PXI bus with PXI cabinet; The signal end of described each PXI module is connected with self-test adapter through VPC connector;
Described System self-test adapter comprises normalized current source, measuring resistance R, reference source circuit, square-wave generator, signal router N1-N3 and first to the 5th Copper Foil short-circuit line;
The output terminal COM in described normalized current source connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O4 of the D2 termination signal router N2 of the input end I1 of the D1 termination signal router N1 of described measuring resistance R, described measuring resistance R; The output terminal REF of described reference source circuit connects the input end I5 of signal router N2 and VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system respectively; The input end I2 of described signal router N1 meets the input end I4 of signal router N2, connects the simulating signal generation module output terminal of described electronics spare part state of the art automatic checkout system through VPC connector the 2nd groove of described electronics spare part state of the art automatic checkout system simultaneously; The output terminal O1 of described signal router N1 connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O2 of described signal router N1 meets the input end I3 of described signal router N2; The output terminal O3 of described signal router N2 connects the multi-functional DAQ module of described electronics spare part state of the art automatic checkout system through VPC connector the 3rd groove of described electronics spare part state of the art automatic checkout system; VPC connector the 1st groove output terminal of described electronics spare part state of the art automatic checkout system connects the respective input of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system respectively; The input end of the output termination digital multimeter module of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system;
The output terminal W0 of described square-wave generator meets the input end I6 of signal router N3; The output terminal W1 of described square-wave generator connects the first dynamic signal acquisition module input through VPC connector the 8th groove of described electronics spare part state of the art automatic checkout system, the first universal switch module successively; The output terminal W2 of described square-wave generator connects the second dynamic signal acquisition module input through VPC connector the 9th groove of described electronics spare part state of the art automatic checkout system, the second universal switch module successively;
The input end I7 of described signal router N3 divides two branch roads, wherein one article of branch road connects the output terminal of the first virtual arbitrary waveform generator module successively through VPC connector the 6th groove of described electronics spare part state of the art automatic checkout system, the 3rd intermediate frequency switch module, and another article of branch road connects the output terminal of the second virtual arbitrary waveform generator module successively through VPC connector the 7th groove of described electronics spare part state of the art automatic checkout system, the 4th intermediate frequency switch module; The output terminal O5 of described signal router N3 divides two branch roads, wherein one article of branch road connects the input end of the first Digital Oscillograph Module successively through VPC connector the 4th groove of described electronics spare part state of the art automatic checkout system, the first intermediate frequency switch module, and another article of branch road connects the input end of the second Digital Oscillograph Module successively through VPC connector the 5th groove of described electronics spare part state of the art automatic checkout system, the second intermediate frequency switch module;
The first end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system, and the second end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system; Described second Copper Foil short-circuit line first end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected, and described second Copper Foil short-circuit line second end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 3rd Copper Foil short-circuit line is held through the H of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 3rd Copper Foil short-circuit line is held through the H of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; The first end of described 4th Copper Foil short-circuit line is held through the L of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 4th Copper Foil short-circuit line is held through the L of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 5th Copper Foil short-circuit line meets the RS232 serial interface module transmitting terminal TX of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system, and the second end of described 5th Copper Foil short-circuit line meets the receiving end RX of the RS232 serial interface module of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system;
The control end of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system, the control end of digital multimeter module, the control end of simulating signal generation module, the control end of multi-functional DAQ module, the control end of the first to the second virtual arbitrary waveform generator module, the control end of the first to the second Digital Oscillograph Module, the control end of first to fourth intermediate frequency switch module, the control end of first to fourth universal switch module, the control end of the first to the second dynamic signal acquisition module, the control of numeral I/O module, the control end of optics isolation digital input module, the control end of CAN interface module and the control end of RS232 serial interface module are bi-directionally connected with the controller corresponding port of described electronics spare part state of the art automatic checkout system respectively.
Described adapter also comprises the dedicated test adapter matched with tested electronics spare part, the test signal port of described dedicated test adapter is connected with the corresponding port of tested electronics spare part, and the communication port of described dedicated test adapter is connected with VPC connector.
Described reference source circuit comprises reference source chip U1, amplifier U2, resistance R1 and electric capacity C1-C2;
Input end 2 pin of described reference source chip U1 connects+12V direct supply through resistance R1; Output terminal 6 pin of described reference source chip U1 connects in-phase input end 3 pin of amplifier U2; Inverting input 2 pin of described amplifier U2 connects output terminal 1 pin of amplifier U2, and output terminal 1 pin of described amplifier U2 is the output terminal REF of reference source circuit;
Between input end 2 pin that described electric capacity C1 is connected on reference source chip U1 and ground; Between output terminal 6 pin that described electric capacity C2 is connected on reference source chip U1 and ground; The 4 pin ground connection of described reference source chip U1; Power end 8 pin of described amplifier U2 connects+12V direct supply; Power end 4 pin of described amplifier U2 connects-12V direct supply.
Described square-wave generator comprises integrated package U3, crystal oscillator Y1, resistance R2-R6 and electric capacity C3-C4; 11 pin of described integrated package U3 connect 8 pin of integrated package U3 successively through crystal oscillator Y1, electric capacity C4; Described resistance R2 is in parallel with crystal oscillator Y1; Described electric capacity C3 is connected between 11 pin of integrated package U3 and 8 pin; Described resistance R3 is connected between the node of crystal oscillator Y1 and electric capacity C4 and 10 pin of integrated package U3; 16 pin of described integrated package U3 connect+12V direct supply; 12 pin of described integrated package U3 and the equal ground connection of 8 pin; 4 pin of described integrated package U3 meet the output terminal W0 of square-wave generator through resistance R4; 5 pin of described integrated package U3 meet the output terminal W1 of square-wave generator through resistance R5; 6 pin of described integrated package U3 meet the output terminal W2 of square-wave generator through resistance R6.
Described normalized current source comprises amplifier U4, resistance R9-R14; Described amplifier U4 comprises U4A unit and U4B unit;
In-phase input end 3 pin of described U4A unit divides two branch roads, and wherein a branch road connects+5V direct supply through resistance R13, and another branch road connects output terminal 7 pin of U4B unit through resistance R12; Inverting input 2 pin of described U4A unit divides two branch roads, and wherein branch road connects output terminal 1 pin of U4A unit through resistance R10, and another branch road is through resistance R9 ground connection; Output terminal 1 pin of described U4A unit meets the output terminal COM in described normalized current source successively through resistance R11, R14;
In-phase input end 5 pin of described U4B unit connects the node of described resistance R11 and R14; Inverting input 6 pin of described U4B unit connects output terminal 7 pin of U4B unit; 8 pin of described amplifier U4B connect+12V direct supply; 4 pin of described amplifier U4B connect-12V direct supply.
Described signal router N1 comprises the U5A unit of amplifier U5, electric capacity C5, resistance R15-R18 and relay J 1; Be connected on after described resistance R15 connects with resistance R17 between+24V direct supply and ground; In-phase input end 3 pin of the U5A unit of described amplifier U5 connects the node of described resistance R15 and resistance R17; Between the input end I2 being connected on described signal router N1 after described resistance R16 connects with resistance R18 and ground; Inverting input 2 pin of the U5A unit of described amplifier U5 connects the node of described resistance R16 and resistance R18; U5A unit 8 pin of described amplifier U5 connects+24V direct supply; Described electric capacity C5 is connected between+24V direct supply and ground; 4 pin ground connection of the U5A unit of described amplifier U5;
The coil of described relay J 1 is connected between U5A unit output terminal 1 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 1 meets the output terminal O1 of described signal router N1; Swing arm 2 pin of described relay J 1 meets the output terminal O2 of described signal router N1; Stationary contact 3 pin of described relay J 1 meets described signal router N1 input end I2; Moving contact 4 pin of described relay J 1 is unsettled; Stationary contact 5 pin of described electrical equipment J1 meets the input end I1 of described signal router N1; Moving contact 6 pin of described relay J 1 meets the input end I2 of described signal router N1;
Described signal router N2 comprises the U5B unit of amplifier U5, resistance R19-R22 and relay J 2; Be connected on after described resistance R19 connects with resistance R21 between+24V direct supply and ground; In-phase input end 5 pin of the U5B unit of described amplifier U5 connects the node of described resistance R19 and resistance R21; Between the input end I4 being connected on described signal router N2 after described resistance R20 connects with resistance R22 and ground; Inverting input 6 pin of the U5B unit of described amplifier U5 connects the node of described resistance R20 and resistance R22;
The coil of described relay J 2 is connected between U5B unit output terminal 7 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 2 meets the output terminal O3 of described signal router N2; Swing arm 2 pin of described relay J 2 meets the output terminal O4 of described signal router N2; Stationary contact 3 pin of described relay J 2 is unsettled; The moving contact 4 pin ground connection of described relay J 2; Stationary contact 5 pin of described relay J 2 meets the input end I5 of described signal router N2; Moving contact 6 pin of described relay J 2 meets the input end I3 of described signal router N2.
Described signal router N3 comprises amplifier U6B, resistance R23-R26, electric capacity C6 and relay J 3; Be connected on after described resistance R23 connects with resistance R25 between+24V direct supply and ground; In-phase input end 5 pin of described amplifier U6B connects the node of described resistance R23 and resistance R25; Between the input end I7 being connected on described signal router N3 after described resistance R24 connects with resistance R26 and ground; Inverting input 6 pin of described amplifier U6B connects the node of described resistance R24 and resistance R26; 8 pin of described amplifier U6B connect+24V direct supply; Described electric capacity C6 is connected between+24V direct supply and ground; The power end 4 pin ground connection of described amplifier U6B;
The coil of described relay J 3 is connected between output terminal 7 pin of+24V direct supply and described amplifier U6B; Swing arm 1 pin of described relay J 3 meets the output terminal O5 of described signal router N3; Swing arm 2 pin of described relay J 3 is unsettled; Stationary contact 3 pin of described relay J 3 is unsettled; Moving contact 4 pin of described relay J 3 meets the input end I6 of described signal router N3; Stationary contact 5 pin of described relay J 3 is unsettled; Moving contact 6 pin of described relay J 3 meets the input end I7 of described signal router N3.
Described PXI module comprises 1 piece of digital I/O module NIPXI-6509, 1 piece of multi-functional DAQ module NIPXI-6259, 1 piece of simulating signal generation module NIPXI-6733, 1 piece of high voltage multiplexer module NIPXI-2527, 1 piece of universal switch module NIPXI-2576, 1 piece of intermediate frequency switch module NIPXI-2593, 1 piece of digitizer/oscilloscope module NIPXI-5152, each 1 piece of virtual arbitrary waveform generator module NIPXI-5441 and NIPXI-5412, 1 piece of digital multimeter module NIPXI-4070, 1 piece of dynamic signal acquisition module NIPXI-4461, 2 pieces of interface controller module NIPXI-PCI-8331, 1 piece of RS232 serial interface module NIPXI-8430/4, 1 piece of CAN interface module NIPXI-8511/2 and 3 piece of optics isolation digital input module NISCXI-1162, described controller is for grinding magnificent IPC-610H industrial computer, described PXI cabinet comprises the PXI cabinet of 14 slot 3UPXI cabinets and the integrated SCXI of band, the model of described reference source chip U1 is ADR425AR, the model of described amplifier U2 is AD8512AR, the model of described integrated package U3 is CD4060BCM, the model of described amplifier U4 is AD8512AR, the model of described amplifier U5 is LM293, the model of described amplifier U6B is LM293, the model of described relay J 1-J3 is HF4/5-G6K-2P.
The implementation method of the described electronics spare part state of the art automatic checkout system based on PXI bus, is characterized in that:
(1) the automatic checkout system software based on the exploitation of LabVIEW virtual instrument software described controller is equipped with;
Described automatic checkout system software comprises test diagnosis system master routine, checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module, checkout and diagnosis database module, test and fault diagnostic program collection, detects interface, supplementary information document storehouse; Described test diagnosis system master routine controls and execution cost checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module;
Described checkout and diagnosis database comprises Detection task database, Fault Diagnosis Database, User Information Database;
Described checkout and diagnosis operation platform comprises universal measurement subroutine, test execution subroutine, fault diagnosis subroutine and information inquiry subroutine; Described universal measurement subroutine, by calling the use of described detection interface simulation conventional desktop surveying instrument, makes system possess the function of traditional discrete formula surveying instrument; Described test execution subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Detection task database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, and described test and fault diagnostic program collection call respective function in described detection interface and complete the state-detection of tested electronics spare part and draw last test result; Described fault diagnosis subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Fault Diagnosis Database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, described test and fault diagnostic program collection call respective function in described detection interface, guide user to carry out fault detection and location with word, pictorial manner; Described information inquiry module is for inquiring about the technical information of the electronics spare part being arranged in supplementary information document storehouse;
Described checkout and diagnosis development platform comprises test assignment exploitation subroutine, fault diagnosis exploitation subroutine; Described test assignment exploitation subroutine is used for that testing process imports and exports, testing process describes, test interface customization, testing process exploitation, testing process emulation, testing process editor, according to the testing process of design, information needed for detected electrons spare part is stored in the Detection task database in checkout and diagnosis database, generate dedicated test procedure set, and specify filename and the path of autotest, fault diagnosis data and repair message in described checkout and diagnosis database; Described fault diagnosis exploitation subroutine is used for newly-built, amendment and deletes electronics spare part fault diagnosis project and information, editor's diagnostic flow chart, the method of electronics spare part failture evacuation is stored in the Fault Diagnosis Database in checkout and diagnosis database, generates special fault diagnostic program collection;
Described system management module is used for user authority management, Password Management, record management; Described System self-test module is used for carrying out self-inspection to the function of PXI cabinet, each PXI module; Described online help module is used for providing the information being arranged in supplementary information document storehouse " checkout and diagnosis operation platform technology operation instructions " and " checkout and diagnosis development platform operation instructions " and system version;
Described checkout and diagnosis database is used for for described checkout and diagnosis operation platform provides file path and the filename of the autotest of tested electronics spare part, fault diagnosis data and repair message;
The various instrument and equipment Driver Library of described detection interface shielding harness bottom, for controlling described system hardware driver; According to function performance attribute can be divided into by resource distribution class, excitation input class, measure response class and analyzing and processing class totally four large class functions form;
(2) concrete steps of described implementation method are as follows:
Step1: tested electronics spare part circuit analysis;
Step2: distribute and detect resource, design detection method;
Step3: at checkout and diagnosis developing platform operation interface;
Step4: write testing process in checkout and diagnosis development platform;
Step5: connected system self-test adapter and VPC connector, carries out self-inspection to PXI system;
Step6: be connected with the corresponding interface of dedicated test adapter by described VPC connector, the detection streamer interface of described dedicated test adapter is connected with tested electronics spare part, completes the connection of this detection system and tested electronics spare part.
The concrete steps that in the implementation method of the described electronics spare part state of the art automatic checkout system based on PXI bus, checkout and diagnosis operation platform operating software carries out automatically detecting are as follows:
Step6-1: select test assignment;
Step6-2: determine whether to start to perform test, starts if determine, is connected to checkout and diagnosis database, load testing process;
Step6-3: prompting operation steps;
Step6-4: call and detect respective function in interface, control PXI instrument performs corresponding operating;
Step6-5: display detects data;
Step6-6: reach a conclusion.
Good effect of the present invention is as follows:
1. the core of testing apparatus adopts PXI modular instrument system, various common voltage, electric current, the generation of switching value and acquisition function is realized by selecting various PXI modules, owing to have employed this design of adapter, make tested electronics spare part and PXI interface separation property good, not only facilitate designing and developing of dedicated test adapter, the good Universal and scalability that also made system possess;
2. perfect function, friendly interface, simple to operate, visualization is high, reduce TPS exploitation difficulty, improve testing efficiency;
3. detectable signal type is many, detects automaticity high.
4. having self-test adapter can be just more true and reliable to the test of measurand and fault diagnosis, localization of fault, make full use of the hardware resource of Auto-Test System itself, only increasing a small amount of adjunct circuit, namely its self-checking function is completed when self-test adapter, structure is simple, reliability is high, achieves the detection to this Auto-Test System and fault isolation, has ensured the accuracy of test.
Accompanying drawing explanation
Fig. 1 is structural principle block diagram of the present invention.
Fig. 2 is theory diagram of the present invention.
Fig. 3 is reference source circuit schematic diagram of the present invention.
Fig. 4 is square-wave generator circuit schematic diagram of the present invention.
Fig. 5 is normalized current source circuit schematic diagram of the present invention.
Fig. 6 is signal router N1-N2 circuit theory diagrams of the present invention.
Fig. 7 is signal router N3 circuit theory diagrams of the present invention.
Fig. 8 is the process flow diagram of method of testing of the present invention.
Fig. 9 is the process flow diagram of checkout and diagnosis action command of the present invention.
Figure 10 is the process flow diagram of checkout and diagnosis of the present invention exploitation order.
Embodiment
Below in conjunction with accompanying drawing 1-accompanying drawing 10 and embodiment, the present invention will be further described:
The present invention includes controller, PXI system, VPC connector, adapter, the keyboard be connected with controller, display that automatic checkout system software is installed; The PXI module that described PXI system inserts in associated socket in PXI cabinet respectively by PXI cabinet and more than 2 forms; Described adapter comprises System self-test adapter; Described controller is connected by PXI bus with PXI cabinet; The signal end of described each PXI module is connected with self-test adapter through VPC connector;
Described System self-test adapter comprises normalized current source, measuring resistance R, reference source circuit, square-wave generator, signal router N1-N3 and first to the 5th Copper Foil short-circuit line;
The output terminal COM in described normalized current source connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O4 of the D2 termination signal router N2 of the input end I1 of the D1 termination signal router N1 of described measuring resistance R, described measuring resistance R; The output terminal REF of described reference source circuit connects the input end I5 of signal router N2 and VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system respectively; The input end I2 of described signal router N1 meets the input end I4 of signal router N2, connects the simulating signal generation module output terminal of described electronics spare part state of the art automatic checkout system through VPC connector the 2nd groove of described electronics spare part state of the art automatic checkout system simultaneously; The output terminal O1 of described signal router N1 connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O2 of described signal router N1 meets the input end I3 of described signal router N2; The output terminal O3 of described signal router N2 connects the multi-functional DAQ module of described electronics spare part state of the art automatic checkout system through VPC connector the 3rd groove of described electronics spare part state of the art automatic checkout system; VPC connector the 1st groove output terminal of described electronics spare part state of the art automatic checkout system connects the respective input of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system respectively; The input end of the output termination digital multimeter module of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system;
The output terminal W0 of described square-wave generator meets the input end I6 of signal router N3; The output terminal W1 of described square-wave generator connects the first dynamic signal acquisition module input through VPC connector the 8th groove of described electronics spare part state of the art automatic checkout system, the first universal switch module successively; The output terminal W2 of described square-wave generator connects the second dynamic signal acquisition module input through VPC connector the 9th groove of described electronics spare part state of the art automatic checkout system, the second universal switch module successively;
The input end I7 of described signal router N3 divides two branch roads, wherein one article of branch road connects the output terminal of the first virtual arbitrary waveform generator module successively through VPC connector the 6th groove of described electronics spare part state of the art automatic checkout system, the 3rd intermediate frequency switch module, and another article of branch road connects the output terminal of the second virtual arbitrary waveform generator module successively through VPC connector the 7th groove of described electronics spare part state of the art automatic checkout system, the 4th intermediate frequency switch module; The output terminal O5 of described signal router N3 divides two branch roads, wherein one article of branch road connects the input end of the first Digital Oscillograph Module successively through VPC connector the 4th groove of described electronics spare part state of the art automatic checkout system, the first intermediate frequency switch module, and another article of branch road connects the input end of the second Digital Oscillograph Module successively through VPC connector the 5th groove of described electronics spare part state of the art automatic checkout system, the second intermediate frequency switch module;
The first end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system, and the second end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system; Described second Copper Foil short-circuit line first end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected, and described second Copper Foil short-circuit line second end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 3rd Copper Foil short-circuit line is held through the H of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 3rd Copper Foil short-circuit line is held through the H of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; The first end of described 4th Copper Foil short-circuit line is held through the L of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 4th Copper Foil short-circuit line is held through the L of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 5th Copper Foil short-circuit line meets the RS232 serial interface module transmitting terminal TX of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system, and the second end of described 5th Copper Foil short-circuit line meets the receiving end RX of the RS232 serial interface module of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system;
The control end of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system, the control end of digital multimeter module, the control end of simulating signal generation module, the control end of multi-functional DAQ module, the control end of the first to the second virtual arbitrary waveform generator module, the control end of the first to the second Digital Oscillograph Module, the control end of first to fourth intermediate frequency switch module, the control end of first to fourth universal switch module, the control end of the first to the second dynamic signal acquisition module, the control of numeral I/O module, the control end of optics isolation digital input module, the control end of CAN interface module and the control end of RS232 serial interface module are bi-directionally connected with the controller corresponding port of described electronics spare part state of the art automatic checkout system respectively.
Described adapter also comprises the dedicated test adapter matched with tested electronics spare part, the test signal port of described dedicated test adapter is connected with the corresponding port of tested electronics spare part, and the communication port of described dedicated test adapter is connected with VPC connector.
Described reference source circuit comprises reference source chip U1, amplifier U2, resistance R1 and electric capacity C1-C2;
Input end 2 pin of described reference source chip U1 connects+12V direct supply through resistance R1; Output terminal 6 pin of described reference source chip U1 connects in-phase input end 3 pin of amplifier U2; Inverting input 2 pin of described amplifier U2 connects output terminal 1 pin of amplifier U2, and output terminal 1 pin of described amplifier U2 is the output terminal REF of reference source circuit;
Between input end 2 pin that described electric capacity C1 is connected on reference source chip U1 and ground; Between output terminal 6 pin that described electric capacity C2 is connected on reference source chip U1 and ground; The 4 pin ground connection of described reference source chip U1; Power end 8 pin of described amplifier U2 connects+12V direct supply; Power end 4 pin of described amplifier U2 connects-12V direct supply.
Described square-wave generator comprises integrated package U3, crystal oscillator Y1, resistance R2-R6 and electric capacity C3-C4; 11 pin of described integrated package U3 connect 8 pin of integrated package U3 successively through crystal oscillator Y1, electric capacity C4; Described resistance R2 is in parallel with crystal oscillator Y1; Described electric capacity C3 is connected between 11 pin of integrated package U3 and 8 pin; Described resistance R3 is connected between the node of crystal oscillator Y1 and electric capacity C4 and 10 pin of integrated package U3; 16 pin of described integrated package U3 connect+12V direct supply; 12 pin of described integrated package U3 and the equal ground connection of 8 pin; 4 pin of described integrated package U3 meet the output terminal W0 of square-wave generator through resistance R4; 5 pin of described integrated package U3 meet the output terminal W1 of square-wave generator through resistance R5; 6 pin of described integrated package U3 meet the output terminal W2 of square-wave generator through resistance R6.
Described normalized current source comprises amplifier U4, resistance R9-R14; Described amplifier U4 comprises U4A unit and U4B unit;
In-phase input end 3 pin of described U4A unit divides two branch roads, and wherein a branch road connects+5V direct supply through resistance R13, and another branch road connects output terminal 7 pin of U4B unit through resistance R12; Inverting input 2 pin of described U4A unit divides two branch roads, and wherein branch road connects output terminal 1 pin of U4A unit through resistance R10, and another branch road is through resistance R9 ground connection; Output terminal 1 pin of described U4A unit meets the output terminal COM in described normalized current source successively through resistance R11, R14;
In-phase input end 5 pin of described U4B unit connects the node of described resistance R11 and R14; Inverting input 6 pin of described U4B unit connects output terminal 7 pin of U4B unit; 8 pin of described amplifier U4B connect+12V direct supply; 4 pin of described amplifier U4B connect-12V direct supply.
Described signal router N1 comprises the U5A unit of amplifier U5, electric capacity C5, resistance R15-R18 and relay J 1; Be connected on after described resistance R15 connects with resistance R17 between+24V direct supply and ground; In-phase input end 3 pin of the U5A unit of described amplifier U5 connects the node of described resistance R15 and resistance R17; Between the input end I2 being connected on described signal router N1 after described resistance R16 connects with resistance R18 and ground; Inverting input 2 pin of the U5A unit of described amplifier U5 connects the node of described resistance R16 and resistance R18; U5A unit 8 pin of described amplifier U5 connects+24V direct supply; Described electric capacity C5 is connected between+24V direct supply and ground; 4 pin ground connection of the U5A unit of described amplifier U5;
The coil of described relay J 1 is connected between U5A unit output terminal 1 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 1 meets the output terminal O1 of described signal router N1; Swing arm 2 pin of described relay J 1 meets the output terminal O2 of described signal router N1; Stationary contact 3 pin of described relay J 1 meets described signal router N1 input end I2; Moving contact 4 pin of described relay J 1 is unsettled; Stationary contact 5 pin of described electrical equipment J1 meets the input end I1 of described signal router N1; Moving contact 6 pin of described relay J 1 meets the input end I2 of described signal router N1;
Described signal router N2 comprises the U5B unit of amplifier U5, resistance R19-R22 and relay J 2; Be connected on after described resistance R19 connects with resistance R21 between+24V direct supply and ground; In-phase input end 5 pin of the U5B unit of described amplifier U5 connects the node of described resistance R19 and resistance R21; Between the input end I4 being connected on described signal router N2 after described resistance R20 connects with resistance R22 and ground; Inverting input 6 pin of the U5B unit of described amplifier U5 connects the node of described resistance R20 and resistance R22;
The coil of described relay J 2 is connected between U5B unit output terminal 7 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 2 meets the output terminal O3 of described signal router N2; Swing arm 2 pin of described relay J 2 meets the output terminal O4 of described signal router N2; Stationary contact 3 pin of described relay J 2 is unsettled; The moving contact 4 pin ground connection of described relay J 2; Stationary contact 5 pin of described relay J 2 meets the input end I5 of described signal router N2; Moving contact 6 pin of described relay J 2 meets the input end I3 of described signal router N2.
Described signal router N3 comprises amplifier U6B, resistance R23-R26, electric capacity C6 and relay J 3; Be connected on after described resistance R23 connects with resistance R25 between+24V direct supply and ground; In-phase input end 5 pin of described amplifier U6B connects the node of described resistance R23 and resistance R25; Between the input end I7 being connected on described signal router N3 after described resistance R24 connects with resistance R26 and ground; Inverting input 6 pin of described amplifier U6B connects the node of described resistance R24 and resistance R26; 8 pin of described amplifier U6B connect+24V direct supply; Described electric capacity C6 is connected between+24V direct supply and ground; The power end 4 pin ground connection of described amplifier U6B;
The coil of described relay J 3 is connected between output terminal 7 pin of+24V direct supply and described amplifier U6B; Swing arm 1 pin of described relay J 3 meets the output terminal O5 of described signal router N3; Swing arm 2 pin of described relay J 3 is unsettled; Stationary contact 3 pin of described relay J 3 is unsettled; Moving contact 4 pin of described relay J 3 meets the input end I6 of described signal router N3; Stationary contact 5 pin of described relay J 3 is unsettled; Moving contact 6 pin of described relay J 3 meets the input end I7 of described signal router N3.
Described PXI module comprises 1 piece of digital I/O module NIPXI-6509, 1 piece of multi-functional DAQ module NIPXI-6259, 1 piece of simulating signal generation module NIPXI-6733, 1 piece of high voltage multiplexer module NIPXI-2527, 1 piece of universal switch module NIPXI-2576, 1 piece of intermediate frequency switch module NIPXI-2593, 1 piece of digitizer/oscilloscope module NIPXI-5152, each 1 piece of virtual arbitrary waveform generator module NIPXI-5441 and NIPXI-5412, 1 piece of digital multimeter module NIPXI-4070, 1 piece of dynamic signal acquisition module NIPXI-4461, 2 pieces of interface controller module NIPXI-PCI-8331, 1 piece of RS232 serial interface module NIPXI-8430/4, 1 piece of CAN interface module NIPXI-8511/2 and 3 piece of optics isolation digital input module NISCXI-1162, described controller is for grinding magnificent IPC-610H industrial computer, described PXI cabinet comprises the PXI cabinet of 14 slot 3UPXI cabinets and the integrated SCXI of band, the model of described reference source chip U1 is ADR425AR, the model of described amplifier U2 is AD8512AR, the model of described integrated package U3 is CD4060BCM, the model of described amplifier U4 is AD8512AR, the model of described amplifier U5 is LM293, the model of described amplifier U6B is LM293, the model of described relay J 1-J3 is HF4/5-G6K-2P.
The implementation method of the described electronics spare part state of the art automatic checkout system based on PXI bus, is characterized in that:
(1) the automatic checkout system software based on the exploitation of LabVIEW virtual instrument software described controller is equipped with;
Described automatic checkout system software comprises detection and diagnosis system master routine, checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module, checkout and diagnosis database module, test and fault diagnostic program collection, detects interface, supplementary information document storehouse; Described detection and diagnosis system master routine controls and execution cost checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module;
Described checkout and diagnosis database comprises Detection task database, Fault Diagnosis Database, User Information Database;
Described checkout and diagnosis operation platform comprises universal measurement subroutine, test execution subroutine, fault diagnosis subroutine and information inquiry subroutine; Described universal measurement subroutine, by calling the use of described detection interface simulation conventional desktop surveying instrument, makes system possess the function of traditional discrete formula surveying instrument; Described test execution subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Detection task database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, and described test and fault diagnostic program collection call respective function in described detection interface and complete the state-detection of tested electronics spare part and draw last test result; Described fault diagnosis subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Fault Diagnosis Database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, described test and fault diagnostic program collection call respective function in described detection interface, guide user to carry out fault detection and location with word, pictorial manner; Described information inquiry module is for inquiring about the technical information of the electronics spare part being arranged in supplementary information document storehouse;
Described checkout and diagnosis development platform comprises test assignment exploitation subroutine, fault diagnosis exploitation subroutine; Described test assignment exploitation subroutine is used for that testing process imports and exports, testing process describes, test interface customization, testing process exploitation, testing process emulation, testing process editor, according to the testing process of design, information needed for detected electrons spare part is stored in the Detection task database in checkout and diagnosis database, generate dedicated test procedure set, and specify filename and the path of autotest, fault diagnosis data and repair message in described checkout and diagnosis database; Described fault diagnosis exploitation subroutine is used for newly-built, amendment and deletes electronics spare part fault diagnosis project and information, editor's diagnostic flow chart, the method of electronics spare part failture evacuation is stored in the Fault Diagnosis Database in checkout and diagnosis database, generates special fault diagnostic program collection;
Described system management module is used for user authority management, Password Management, record management; Described System self-test module is used for carrying out self-inspection to the function of PXI cabinet, each PXI module; Described online help module is used for providing the information being arranged in supplementary information document storehouse " checkout and diagnosis operation platform technology operation instructions " and " checkout and diagnosis development platform operation instructions " and system version;
Described checkout and diagnosis database is used for for described checkout and diagnosis operation platform provides file path and the filename of the autotest of tested electronics spare part, fault diagnosis data and repair message;
The various instrument and equipment Driver Library of described detection interface shielding harness bottom, for controlling described system hardware driver; According to function performance attribute can be divided into by resource distribution class, excitation input class, measure response class and analyzing and processing class totally four large class functions form;
(2) concrete steps of described implementation method are as follows:
Step1: tested electronics spare part circuit analysis;
Step2: distribute and detect resource, design detection method;
Step3: at checkout and diagnosis developing platform operation interface;
Step4: write testing process in checkout and diagnosis development platform;
Step5: connected system self-test adapter and VPC connector, carries out self-inspection to PXI system;
Step6: be connected with the corresponding interface of dedicated test adapter by described VPC connector, the detection streamer interface of described dedicated test adapter is connected with tested electronics spare part, completes the connection of this detection system and tested electronics spare part.
The concrete steps that in the implementation method of the described electronics spare part state of the art automatic checkout system based on PXI bus, checkout and diagnosis operation platform operating software carries out automatically detecting are as follows:
Step6-1: select test assignment;
Step6-2: determine whether to start to perform test, starts if determine, is connected to checkout and diagnosis database, load testing process;
Step6-3: prompting operation steps;
Step6-4: call and detect respective function in interface, control PXI instrument performs corresponding operating;
Step6-5: display detects data;
Step6-6: reach a conclusion.The course of work of the present invention is as follows:
For communication board, analysis circuit schematic diagram, communication board main line is divided into:
1. circuit between audio frequency 1+ and audio frequency 2+;
2. circuit between audio frequency 1+ and audio frequency 3+;
3. circuit between audio frequency 2+ and audio frequency 3+;
4. circuit between audio frequency 1+ and audio frequency 1-;
5. circuit between audio frequency 2+ and audio frequency 2-;
6. circuit between audio frequency 3+ and audio frequency 3-;
7. Tel-2 signal input, audio frequency 4+ and 4-signal output apparatus;
8. audio frequency 4+ and the input of audio frequency 4-signal, Tel-3 signal output apparatus.
For " between audio frequency 1+ and audio frequency 2+ circuit ", detecting step is as follows:
(1) desired signal type and quantity during circuit theory diagrams analytical electron spare part circuit working principle and work thereof in conjunction with tested electronics spare part.
Control signal comprises: 74HC245 enable signal, 74HC245 input signal, 74HC373 latch signal (totally 10 road I/O type signals) and audio frequency 1+ input signal (frequency is 1KHZ, and peak-to-peak value is the sine wave signal of 1V).
Collection signal comprises: audio frequency 2+ outputs signal (waveform signal corresponding with audio frequency 1+).
(2) detection resource, design detection method is distributed
According to the circuit analysis result of tested electronics spare part, distribute board resource for Detection task and design detection method, for " between audio frequency 1+ and audio frequency 2+ circuit ", allocation result is as follows:
1) latch signal that I/O class board 10 paths is 74HC245 Enable Pin, 74HC245 input end, 74HC373 latch end is utilized to provide I/O pumping signal.
2) utilize signal source card for audio frequency 1+ incoming frequency be 1KHZ, peak-to-peak value is the sine wave signal of 1V.
3) audio frequency 2+ output signal is linked into oscillograph card and completes waveform acquisition.
(3) interface is detected
According to the graphic interface of the test assignment exploitation subroutine design close friend of Detection task title, resource type, Information Pull checkout and diagnosis development platform such as board detection position, result judgement etc., and the interface information designed is saved in the Detection task database of checkout and diagnosis database, be convenient to testing result and user interactions.
(4) testing process is write
According to the detection method designed, the test assignment of the Information Pull checkout and diagnosis development platforms such as testing process order, board resource information, signal input/output state, operation indicating content exploitation subroutine is write Detection task flow process, and be saved in the Detection task database of checkout and diagnosis database.
(5) the own self-inspection of system
Described VPC connector is connected with System self-test adapter, run automatic testing software, the performance being PXI system itself is detected, namely detect PXI cabinet and PXI module, guarantee that system main hardware equipment is in normal operating conditions when start detection diagnosis operation platform.
(6) connect dedicated test adapter, start automatically to detect
Be connected with the corresponding interface of dedicated test adapter by described VPC connector, the detection streamer interface of described dedicated test adapter is connected with tested electronics spare part.Complete the connection of this detection system and tested electronics spare part.
Utilize the test assignment execution subroutine of checkout and diagnosis operation platform to complete Detection task automatically to detect, and generate testing result.
The concrete manner of execution of the present invention and principle of work are described below:
Run the test assignment execution subroutine of checkout and diagnosis operation platform.
Select " between audio frequency 1+ and audio frequency 2+ circuit " Detection task, open and perform.
Test assignment execution subroutine module is from the Detection task database of the checkout and diagnosis database that is dynamically connected and load from Detection task database and specify the testing process of Detection task and each node job information, forms flow process element chained list.
Perform the function that in flow process element chained list, each element defines, operation detection interface, by the input of hardware board driver control PXI board, output signal Detection task measuring ability.
Testing result is drawn test result after Treatment Analysis and is shown on Detection task interface.
The specific works process of described self-test adapter is as follows:
Described digital multimeter module NIPXI-4070 gathers the output signal in normalized current source, and whether checking digital multimeter module NIPXI-4070 measures function of current normal.If the display be connected with controller shows digital consistent with the current value that normalized current source circuit exports, then digital multimeter module NIPXI-4070 measurement function of current is normal; Otherwise, display display digital multimeter module NIPXI-4070 measuring resistance fault.
Described digital multimeter module NIPXI-4070 gathers described measuring resistance R resistance, and whether checking digital multimeter module NIPXI-4070 measuring resistance function is normal.If it is consistent with the resistance of measuring resistance R that the display be connected with controller shows numeral, then digital multimeter module NIPXI-4070 measuring resistance function is normal; Otherwise display display digital multimeter module NIPXI-4070 measures current failure.
Described digital multimeter module NIPXI-4070 gathers the+5V voltage signal that described reference source generative circuit produces, and whether checking digital multimeter module NIPXI-4070 measuring voltage function is normal.If it is consistent with the+5V voltage signal values that reference source generative circuit produces that the display be connected with controller shows numeral, then digital multimeter module NIPXI-4070 measuring voltage function is normal; Otherwise, display display digital multimeter module NIPXI-4070 measuring voltage fault.
Described digital multimeter module NIPXI-4070 gathers described simulating signal generation module NIPXI-6723(DA card) voltage signal that exports, checking simulating signal generation module NIPXI-6723(DA card) whether output voltage function normal.If display displayed value and simulating signal generation module NIPXI-6723(DA card) voltage signal values that exports is consistent, then simulating signal generation module NIPXI-6723(DA card) output voltage function is normal; Otherwise, display display simulation signal generating module NIPXI-6723(DA card) and output voltage functional fault.
Described multi-functional DAQ module NIPXI-6259(AD card) gather+5V voltage signal that reference source generative circuit produces, verify multi-functional DAQ module NIPXI-6259(AD card) whether function normal.If the display be connected with controller shows numeral for+5V, then multi-functional DAQ module NIPXI-6259(AD card) normal; Otherwise display shows multi-functional DAQ module NIPXI-6259(AD card) measure fault.
If described multi-functional DAQ module NIPXI-6259(AD card) normal, by simulating signal generation module NIPXI-6723(DA card) signal output to multi-functional DAQ module NIPXI-6259(AD card), checking simulating signal generation module NIPXI-6723(DA card) whether function normal.If the display be connected with controller shows numeral and simulating signal generation module NIPXI-6723(DA card) output valve is consistent, then multi-functional DAQ module NIPXI-6259(AD card) normally; Otherwise display shows multi-functional DAQ module NIPXI-6259(AD card) measure fault.
Described oscilloscope module NIPXI-5152-1 gathers the output terminal WAVE0 signal (square wave of 4kHz) of described square wave generative circuit, and whether checking oscilloscope module NIPXI-5152-1 function is normal.If the output terminal WAVE0 signal (square wave of 4kHz) of the waveform that the display be connected with controller shows and square wave generative circuit is consistent, then oscilloscope module NIPXI-5152-1 is normal; Otherwise, display display oscilloscope module NIPXI-5152-1 fault.
Described oscilloscope module NIPXI-5152-1 gathers described virtual arbitrary waveform generator module NIPXI-5412 and outputs signal, and whether checking virtual arbitrary waveform generator module NIPXI-5412 function is normal.If the waveform that the display be connected with controller shows and the waveform that virtual arbitrary waveform generator module NIPXI-5412 exports consistent, then virtual arbitrary waveform generator module NIPXI-5412 is normal; Otherwise, display display virtual arbitrary waveform generator module NIPXI-5412 fault.
Described oscilloscope module NIPXI-5152-1 gathers described virtual arbitrary waveform generator module NIPXI-5441 and outputs signal, and whether checking virtual arbitrary waveform generator module NIPXI-5441 function is normal.If the waveform that the display be connected with controller shows and the waveform that virtual arbitrary waveform generator module NIPXI-5441 exports consistent, then virtual arbitrary waveform generator module NIPXI-5441 is normal; Otherwise, display display virtual arbitrary waveform generator module NIPXI-5441 fault.
Described oscilloscope module NIPXI-5152-2 gathers the output terminal WAVE0 signal (square wave of 4kHz) of described square wave generative circuit, and whether checking oscilloscope module NIPXI-5152-2 function is normal.If the output terminal WAVE0 signal (square wave of 4kHz) of the waveform that the display be connected with controller shows and square wave generative circuit is consistent, then oscilloscope module NIPXI-5152-2 is normal; Otherwise, display display oscilloscope module NIPXI-5152-2 fault.
Described oscilloscope module NIPXI-5152-2 gathers described virtual arbitrary waveform generator module NIPXI-5412 and outputs signal, and whether checking oscilloscope module NIPXI-5152-2 function is normal.If the waveform that the display be connected with controller shows and the waveform that virtual arbitrary waveform generator module NIPXI-5412 outputs signal consistent, then oscilloscope module NIPXI-5152-2 is normal; Otherwise, display display oscilloscope module NIPXI-5152-2 fault.
Described oscilloscope module NIPXI-5152-2 gathers described virtual arbitrary waveform generator module NIPXI-5441 and outputs signal, and whether checking oscilloscope module NIPXI-5152-2 function is normal.If the waveform that the display be connected with controller shows and the waveform that virtual arbitrary waveform generator module NIPXI-5441 outputs signal consistent, then oscilloscope module NIPXI-5152-2 is normal; Otherwise, display report oscilloscope module NIPXI-5152-2 fault.
Describedly meet the output signal WAVE1 that dynamic signal acquisition module NIPXI-4461-1 gathers described square wave generative circuit, whether checking connects dynamic signal acquisition module NIPXI-4461-1 function normal.If the waveform of the output signal WAVE1 of the waveform that the display be connected with controller shows and described square wave generative circuit is consistent, then dynamic signal acquisition module NIPXI-4461-1 is normal; Otherwise, display report dynamic signal acquisition module NIPXI-4461-1 fault.
Describedly meet the output signal WAVE2 that dynamic signal acquisition module NIPXI-4461-2 gathers described square wave generative circuit, whether checking connects dynamic signal acquisition module NIPXI-4461-2 function normal.If the waveform of the output signal WAVE2 of the waveform that the display be connected with controller shows and described square wave generative circuit is consistent, then dynamic signal acquisition module NIPXI-4461-2 is normal; Otherwise, display report dynamic signal acquisition module NIPXI-4461-2 fault.
Described digital I/O module NIPXI-6509, multi-functional DAQ module NIPXI-6259, simulating signal generation module NIPXI-6723, high voltage multiplexer module NIPXI-2527, universal switch module NIPXI-2576, intermediate frequency switch module NIPXI-2593, digitizer/oscilloscope module NIPXI-5152, virtual arbitrary waveform generator module NIPXI-5441, virtual arbitrary waveform generator module NIPXI-5412, digital multimeter module NIPXI-4070, dynamic signal acquisition module NIPXI-4461, RS232 serial interface module NIPXI-8430, CAN interface module NIPXI-8511, automatic checkout system software control in all controlled device of optics isolation digital input module NISCXI-1162.
For 6509, one of them passage of 6509 is set to output, export high level or low level, another passage is set to input, gathers the low and high level signal that output channel exports, and compares with it, illustrates normal, otherwise fault is described if consistent.If after normal, change the passage being set to output into input, change the passage being set to input into output, again carry out collection and compare, illustrate if consistent normal, otherwise fault is described.
Serial ports 8430 course of work: by the transmission of serial ports and reception short circuit, internal loopback.Send a string data, observe after receiving whether with the data consistent sent, if be unanimously qualified, otherwise be fault.
CAN card 8511 course of work: by the CANH short circuit of CAN1 and CAN2, CANL short circuit, CAN1 sends a string data, and CAN2 receives data, and that observes whether the data that receive send with CAN1 is consistent, if be unanimously qualified, otherwise is fault.

Claims (10)

1., based on an electronics spare part state of the art automatic checkout system for PXI bus, it is characterized in that comprising controller, PXI system, VPC connector, adapter, the keyboard be connected with controller, display that automatic checkout system software is installed; The PXI module that described PXI system inserts in associated socket in PXI cabinet respectively by PXI cabinet and more than 2 forms; Described adapter comprises System self-test adapter; Described controller is connected by PXI bus with PXI cabinet; The signal end of described each PXI module is connected with self-test adapter through VPC connector;
Described System self-test adapter comprises normalized current source, measuring resistance R, reference source circuit, square-wave generator, signal router N1-N3 and first to the 5th Copper Foil short-circuit line;
The output terminal COM in described normalized current source connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O4 of the D2 termination signal router N2 of the input end I1 of the D1 termination signal router N1 of described measuring resistance R, described measuring resistance R; The output terminal REF of described reference source circuit connects the input end I5 of signal router N2 and VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system respectively; The input end I2 of described signal router N1 meets the input end I4 of signal router N2, connects the simulating signal generation module output terminal of described electronics spare part state of the art automatic checkout system through VPC connector the 2nd groove of described electronics spare part state of the art automatic checkout system simultaneously; The output terminal O1 of described signal router N1 connects VPC connector the 1st groove respective input of described electronics spare part state of the art automatic checkout system; The output terminal O2 of described signal router N1 meets the input end I3 of described signal router N2; The output terminal O3 of described signal router N2 connects the multi-functional DAQ module of described electronics spare part state of the art automatic checkout system through VPC connector the 3rd groove of described electronics spare part state of the art automatic checkout system; VPC connector the 1st groove output terminal of described electronics spare part state of the art automatic checkout system connects the respective input of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system respectively; The input end of the output termination digital multimeter module of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system;
The output terminal W0 of described square-wave generator meets the input end I6 of signal router N3; The output terminal W1 of described square-wave generator connects the first dynamic signal acquisition module input through VPC connector the 8th groove of described electronics spare part state of the art automatic checkout system, the first universal switch module successively; The output terminal W2 of described square-wave generator connects the second dynamic signal acquisition module input through VPC connector the 9th groove of described electronics spare part state of the art automatic checkout system, the second universal switch module successively;
The input end I7 of described signal router N3 divides two branch roads, wherein one article of branch road connects the output terminal of the first virtual arbitrary waveform generator module successively through VPC connector the 6th groove of described electronics spare part state of the art automatic checkout system, the 3rd intermediate frequency switch module, and another article of branch road connects the output terminal of the second virtual arbitrary waveform generator module successively through VPC connector the 7th groove of described electronics spare part state of the art automatic checkout system, the 4th intermediate frequency switch module; The output terminal O5 of described signal router N3 divides two branch roads, wherein one article of branch road connects the input end of the first Digital Oscillograph Module successively through VPC connector the 4th groove of described electronics spare part state of the art automatic checkout system, the first intermediate frequency switch module, and another article of branch road connects the input end of the second Digital Oscillograph Module successively through VPC connector the 5th groove of described electronics spare part state of the art automatic checkout system, the second intermediate frequency switch module;
The first end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system, and the second end of described first Copper Foil short-circuit line is bi-directionally connected through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the digital I/O module corresponding end of described electronics spare part state of the art automatic checkout system; Described second Copper Foil short-circuit line first end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected, and described second Copper Foil short-circuit line second end is isolated digital input module corresponding end through VPC connector the 10th groove of described electronics spare part state of the art automatic checkout system and the optics of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 3rd Copper Foil short-circuit line is held through the H of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 3rd Copper Foil short-circuit line is held through the H of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; The first end of described 4th Copper Foil short-circuit line is held through the L of the CAN1 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected; Second end of described 4th Copper Foil short-circuit line is held through the L of the CAN2 of VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system and the CAN interface module of described electronics spare part state of the art automatic checkout system and is bi-directionally connected;
The first end of described 5th Copper Foil short-circuit line meets the RS232 serial interface module transmitting terminal TX of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system, and the second end of described 5th Copper Foil short-circuit line meets the receiving end RX of the RS232 serial interface module of described electronics spare part state of the art automatic checkout system through VPC connector the 11st groove of described electronics spare part state of the art automatic checkout system;
The control end of the high voltage multiplexer module of described electronics spare part state of the art automatic checkout system, the control end of digital multimeter module, the control end of simulating signal generation module, the control end of multi-functional DAQ module, the control end of the first to the second virtual arbitrary waveform generator module, the control end of the first to the second Digital Oscillograph Module, the control end of first to fourth intermediate frequency switch module, the control end of first to fourth universal switch module, the control end of the first to the second dynamic signal acquisition module, the control of numeral I/O module, the control end of optics isolation digital input module, the control end of CAN interface module and the control end of RS232 serial interface module are bi-directionally connected with the controller corresponding port of described electronics spare part state of the art automatic checkout system respectively.
2. the electronics spare part state of the art automatic checkout system based on PXI bus according to claim 1, it is characterized in that described adapter also comprises the dedicated test adapter matched with tested electronics spare part, the test signal port of described dedicated test adapter is connected with the corresponding port of tested electronics spare part, and the communication port of described dedicated test adapter is connected with VPC connector.
3. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 1, is characterized in that: described reference source circuit comprises reference source chip U1, amplifier U2, resistance R1 and electric capacity C1-C2;
Input end 2 pin of described reference source chip U1 connects+12V direct supply through resistance R1; Output terminal 6 pin of described reference source chip U1 connects in-phase input end 3 pin of amplifier U2; Inverting input 2 pin of described amplifier U2 connects output terminal 1 pin of amplifier U2, and output terminal 1 pin of described amplifier U2 is the output terminal REF of reference source circuit;
Between input end 2 pin that described electric capacity C1 is connected on reference source chip U1 and ground; Between output terminal 6 pin that described electric capacity C2 is connected on reference source chip U1 and ground; The 4 pin ground connection of described reference source chip U1; Power end 8 pin of described amplifier U2 connects+12V direct supply; Power end 4 pin of described amplifier U2 connects-12V direct supply.
4. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 3, is characterized in that: described square-wave generator comprises integrated package U3, crystal oscillator Y1, resistance R2-R6 and electric capacity C3-C4; 11 pin of described integrated package U3 connect 8 pin of integrated package U3 successively through crystal oscillator Y1, electric capacity C4; Described resistance R2 is in parallel with crystal oscillator Y1; Described electric capacity C3 is connected between 11 pin of integrated package U3 and 8 pin; Described resistance R3 is connected between the node of crystal oscillator Y1 and electric capacity C4 and 10 pin of integrated package U3; 16 pin of described integrated package U3 connect+12V direct supply; 12 pin of described integrated package U3 and the equal ground connection of 8 pin; 4 pin of described integrated package U3 meet the output terminal W0 of square-wave generator through resistance R4; 5 pin of described integrated package U3 meet the output terminal W1 of square-wave generator through resistance R5; 6 pin of described integrated package U3 meet the output terminal W2 of square-wave generator through resistance R6.
5. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 4, is characterized in that: described normalized current source comprises amplifier U4, resistance R9-R14; Described amplifier U4 comprises U4A unit and U4B unit;
In-phase input end 3 pin of described U4A unit divides two branch roads, and wherein a branch road connects+5V direct supply through resistance R13, and another branch road connects output terminal 7 pin of U4B unit through resistance R12; Inverting input 2 pin of described U4A unit divides two branch roads, and wherein branch road connects output terminal 1 pin of U4A unit through resistance R10, and another branch road is through resistance R9 ground connection; Output terminal 1 pin of described U4A unit meets the output terminal COM in described normalized current source successively through resistance R11, R14;
In-phase input end 5 pin of described U4B unit connects the node of described resistance R11 and R14; Inverting input 6 pin of described U4B unit connects output terminal 7 pin of U4B unit; 8 pin of described amplifier U4B connect+12V direct supply; 4 pin of described amplifier U4B connect-12V direct supply.
6. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 5, is characterized in that: described signal router N1 comprises the U5A unit of amplifier U5, electric capacity C5, resistance R15-R18 and relay J 1; Be connected on after described resistance R15 connects with resistance R17 between+24V direct supply and ground; In-phase input end 3 pin of the U5A unit of described amplifier U5 connects the node of described resistance R15 and resistance R17; Between the input end I2 being connected on described signal router N1 after described resistance R16 connects with resistance R18 and ground; Inverting input 2 pin of the U5A unit of described amplifier U5 connects the node of described resistance R16 and resistance R18; U5A unit 8 pin of described amplifier U5 connects+24V direct supply; Described electric capacity C5 is connected between+24V direct supply and ground; 4 pin ground connection of the U5A unit of described amplifier U5;
The coil of described relay J 1 is connected between U5A unit output terminal 1 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 1 meets the output terminal O1 of described signal router N1; Swing arm 2 pin of described relay J 1 meets the output terminal O2 of described signal router N1; Stationary contact 3 pin of described relay J 1 meets described signal router N1 input end I2; Moving contact 4 pin of described relay J 1 is unsettled; Stationary contact 5 pin of described electrical equipment J1 meets the input end I1 of described signal router N1; Moving contact 6 pin of described relay J 1 meets the input end I2 of described signal router N1;
Described signal router N2 comprises the U5B unit of amplifier U5, resistance R19-R22 and relay J 2; Be connected on after described resistance R19 connects with resistance R21 between+24V direct supply and ground; In-phase input end 5 pin of the U5B unit of described amplifier U5 connects the node of described resistance R19 and resistance R21; Between the input end I4 being connected on described signal router N2 after described resistance R20 connects with resistance R22 and ground; Inverting input 6 pin of the U5B unit of described amplifier U5 connects the node of described resistance R20 and resistance R22;
The coil of described relay J 2 is connected between U5B unit output terminal 7 pin of+24V direct supply and described amplifier U5; Swing arm 1 pin of described relay J 2 meets the output terminal O3 of described signal router N2; Swing arm 2 pin of described relay J 2 meets the output terminal O4 of described signal router N2; Stationary contact 3 pin of described relay J 2 is unsettled; The moving contact 4 pin ground connection of described relay J 2; Stationary contact 5 pin of described relay J 2 meets the input end I5 of described signal router N2; Moving contact 6 pin of described relay J 2 meets the input end I3 of described signal router N2.
7. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 6, is characterized in that: described signal router N3 comprises amplifier U6B, resistance R23-R26, electric capacity C6 and relay J 3; Be connected on after described resistance R23 connects with resistance R25 between+24V direct supply and ground; In-phase input end 5 pin of described amplifier U6B connects the node of described resistance R23 and resistance R25; Between the input end I7 being connected on described signal router N3 after described resistance R24 connects with resistance R26 and ground; Inverting input 6 pin of described amplifier U6B connects the node of described resistance R24 and resistance R26; 8 pin of described amplifier U6B connect+24V direct supply; Described electric capacity C6 is connected between+24V direct supply and ground; The power end 4 pin ground connection of described amplifier U6B;
The coil of described relay J 3 is connected between output terminal 7 pin of+24V direct supply and described amplifier U6B; Swing arm 1 pin of described relay J 3 meets the output terminal O5 of described signal router N3; Swing arm 2 pin of described relay J 3 is unsettled; Stationary contact 3 pin of described relay J 3 is unsettled; Moving contact 4 pin of described relay J 3 meets the input end I6 of described signal router N3; Stationary contact 5 pin of described relay J 3 is unsettled; Moving contact 6 pin of described relay J 3 meets the input end I7 of described signal router N3.
8. a kind of electronics spare part state of the art automatic checkout system based on PXI bus according to claim 7, it is characterized in that: described PXI module comprises 1 piece of digital I/O module NIPXI-6509, 1 piece of multi-functional DAQ module NIPXI-6259, 1 piece of simulating signal generation module NIPXI-6733, 1 piece of high voltage multiplexer module NIPXI-2527, 1 piece of universal switch module NIPXI-2576, 1 piece of intermediate frequency switch module NIPXI-2593, 1 piece of digitizer/oscilloscope module NIPXI-5152, each 1 piece of virtual arbitrary waveform generator module NIPXI-5441 and NIPXI-5412, 1 piece of digital multimeter module NIPXI-4070, 1 piece of dynamic signal acquisition module NIPXI-4461, 2 pieces of interface controller module NIPXI-PCI-8331, 1 piece of RS232 serial interface module NIPXI-8430/4, 1 piece of CAN interface module NIPXI-8511/2 and 3 piece of optics isolation digital input module NISCXI-1162, described controller is for grinding magnificent IPC-610H industrial computer, described PXI cabinet comprises the PXI cabinet of 14 slot 3UPXI cabinets and the integrated SCXI of band, the model of described reference source chip U1 is ADR425AR, the model of described amplifier U2 is AD8512AR, the model of described integrated package U3 is CD4060BCM, the model of described amplifier U4 is AD8512AR, the model of described amplifier U5 is LM293, the model of described amplifier U6B is LM293, the model of described relay J 1-J3 is HF4/5-G6K-2P.
9. the implementation method of the electronics spare part state of the art automatic checkout system based on PXI bus according to claim 1, is characterized in that:
(1) the automatic checkout system software based on the exploitation of LabVIEW virtual instrument software described controller is equipped with;
Described automatic checkout system software comprises detection and diagnosis system master routine, checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module, checkout and diagnosis database module, test and fault diagnostic program collection, detects interface, supplementary information document storehouse; Described detection and diagnosis system master routine controls and execution cost checkout and diagnosis operation platform, checkout and diagnosis development platform, online help module, System self-test module, system management module;
Described checkout and diagnosis database comprises Detection task database, Fault Diagnosis Database, User Information Database;
Described checkout and diagnosis operation platform comprises universal measurement subroutine, test execution subroutine, fault diagnosis subroutine and information inquiry subroutine; Described universal measurement subroutine, by calling the use of described detection interface simulation conventional desktop surveying instrument, makes system possess the function of traditional discrete formula surveying instrument; Described test execution subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Detection task database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, and described test and fault diagnostic program collection call respective function in described detection interface and complete the state-detection of tested electronics spare part and draw last test result; Described fault diagnosis subroutine is for different tested electronics spare parts, in conjunction with dedicated test adapter, the corresponding document name provided according to Fault Diagnosis Database in described checkout and diagnosis database and file path load described test and fault diagnostic program collection automatically, described test and fault diagnostic program collection call respective function in described detection interface, guide user to carry out fault detection and location with word, pictorial manner; Described information inquiry module is for inquiring about the technical information of the electronics spare part being arranged in supplementary information document storehouse;
Described checkout and diagnosis development platform comprises test assignment exploitation subroutine, fault diagnosis exploitation subroutine; Described test assignment exploitation subroutine is used for that testing process imports and exports, testing process describes, test interface customization, testing process exploitation, testing process emulation, testing process editor, according to the testing process of design, information needed for detected electrons spare part is stored in the Detection task database in checkout and diagnosis database, generate dedicated test procedure set, and specify filename and the path of autotest, fault diagnosis data and repair message in described checkout and diagnosis database; Described fault diagnosis exploitation subroutine is used for newly-built, amendment and deletes electronics spare part fault diagnosis project and information, editor's diagnostic flow chart, the method of electronics spare part failture evacuation is stored in the Fault Diagnosis Database in checkout and diagnosis database, generates special fault diagnostic program collection;
Described system management module is used for user authority management, Password Management, record management; Described System self-test module is used for carrying out self-inspection to the function of PXI cabinet, each PXI module; Described online help module is used for providing the information being arranged in supplementary information document storehouse " checkout and diagnosis operation platform technology operation instructions " and " checkout and diagnosis development platform operation instructions " and system version;
Described checkout and diagnosis database is used for for described checkout and diagnosis operation platform provides file path and the filename of the autotest of tested electronics spare part, fault diagnosis data and repair message;
The various instrument and equipment Driver Library of described detection interface shielding harness bottom, for controlling described system hardware driver; According to function performance attribute can be divided into by resource distribution class, excitation input class, measure response class and analyzing and processing class totally four large class functions form;
(2) concrete steps of described implementation method are as follows:
Step1: tested electronics spare part circuit analysis;
Step2: distribute and detect resource, design detection method;
Step3: at checkout and diagnosis developing platform operation interface;
Step4: write testing process in checkout and diagnosis development platform;
Step5: connected system self-test adapter and VPC connector, carries out self-inspection to PXI system;
Step6: be connected with the corresponding interface of dedicated test adapter by described VPC connector, the detection streamer interface of described dedicated test adapter is connected with tested electronics spare part, completes the connection of this detection system and tested electronics spare part.
10. the implementation method of the electronics spare part state of the art automatic checkout system based on PXI bus according to claim 9, is characterized in that the concrete steps that described checkout and diagnosis operation platform operating software carries out automatically detecting are as follows:
Step6-1: select test assignment;
Step6-2: determine whether to start to perform test, starts if determine, is connected to checkout and diagnosis database, load testing process;
Step6-3: prompting operation steps;
Step6-4: call and detect respective function in interface, control PXI instrument performs corresponding operating;
Step6-5: display detects data;
Step6-6: reach a conclusion.
CN201310342045.2A 2013-08-08 2013-08-08 Based on electronics spare part state of the art automatic checkout system and the method for PXI bus Expired - Fee Related CN103454522B (en)

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