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Control Circuit Board Of Automatic Washing Machine Intelligentic Testing And Fault Diagnosis

Posted on:2008-05-11Degree:MasterType:Thesis
Country:ChinaCandidate:B G GengFull Text:PDF
GTID:2132360242459138Subject:Power electronics and electric drive
Abstract/Summary:PDF Full Text Request
Today, with the development of science and technology, the requirementmeasurement technology is getting more and more important. The traditionmanual application electronic measurement technology has extended to morefields than before. Due limited functions and big size, Additionally as personingredient make some loss & fail measurement and nonconforming problemthat have graveness influence at quality and capility, at the same time due tomeasurement unefficiency the enterprise has been bunned at grossproductionand the undertaking have been severity affected in competition ofmarket.because the factortraditional electronic measuring equipments are nolonger suitable to common purposes. For instrance multiformity,multifunction, Automation, superquaility and high efficiency and so on.Now the rapid development of integrated circuit and computertechnology gives birth to a new kind of instrument, Virtual Instrument (â…¥). Ithas turn automation measurement into reality. Compared with traditionalequipment,â…¥characterizes with more functions, higher processing speed,wider bandwidth, friendlier interface, small size and better expandability. It isbased on PC platform, which make it convenient to use the software andhardware resources of PC and get the ability of data processing flexible Withâ…¥, a measure system can be easily build for different requirements and offsettradition manual electronic measurement of limitation and lacuna and be fit forsuperquaility and high efficiency, the gross production, and the enterprise oweto the stronger competity in the impetuositily markent compentition. The rapid development of integrated circuit and computer technologygives birth to a new kind of instrument, Virmal Instrument (â…¥).Comparedwith traditional equipment,â…¥characterizes with more functions, higherprocessing speed, wider bandwidth, friendlier interface, small size and betterexpandability. It is based on PC platform, which make it convenient to use thesoftware and hardware resources of PC and get the ability of data processingflexible Withâ…¥, A measure system can be easily build for differentrequirements,The author of the paper mostly adopted T2000 IN-Circuit Tester System,Laboratory Virtual Instrument Engineering Workbench(labview), integratecomputer of characteristic, design the system with computer groundwork, Thesystem includes signal acquisition and data display; Parts of an apparatus aretested IN-Circuit and Function in-circuit tested. The system of full robotizationwas found was applied in circuit-board testing system.The system of linchpin are data acquisition-card of selection, ICT testsoftware programmer and debugging, testing malfunction diagnoses& FCTtest hardware and software designed and debugged and testing malfunctiondiagnoses. Wireless part network was found and applied and so on.The paper particularly illustrate ICT testing and FCT testing and designFCT hardware circuit and software program& ICT software program.anddebugging& malfunction diagnoses. Especially ICT (the component tests online) how the component tests and debugging, the FCT testing (online functiontesting) software is programmed having done comparatively detailedexpounding. The thesis has embodied an automation testing for the meritproducing what be brought about (The former hand testing efficiency is lowand the mass quaility degree is also low, Especially the mistake compatibilitythat the manpower judges is that hand movement tests fatal weakness, Butautomatic testing as it happens having made up the defect, at the same time making output some leaping across the sex breakthrough; Make business costlessening, marketplace competition strengthen, Beneficial to enterprisedevelops to high technology, intension direction.
Keywords/Search Tags:Virtual Instrument, LabVIEW, Data Acquisition, In-circuit testing
PDF Full Text Request
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