| Along with the automobile industry fast development, the automobile measuring appliance development more and more is also quick. In car being instrument in enormous quantities to bring another question while in production process, that is a test question for producing finished product. The instrument always becomes the information centre that is Hyundai Motor, its quality of production, concerns the quality of the security that the car goes and completed car. But as a result of the automobile measuring appliance renewal, the new product appears the old measuring appliance not to withdraw from the use unceasingly, how develops one kind to be able after to become one item importantly to each kind of different model measuring appliance check-out facility oneself moreover the extremely rich application significance topic.This article carries on the development through the NI Corporation's software and hardware product to the entire examination system, needs each kind of simulation, the numeral, the switch, LIN, CAN according to the measuring appliance test and so on each kind of signal parameter, uses NI the PXI series board card, China and Thailand's PM-536 as well as the self-made programmable network resistance and the data communication transformation card composition system hardware electric circuit. In this foundation, carries on the development using the NI LabVIEW software to the entire test system. Finally develops one exquisitely, nimble, the reliable high portable examination system, this system can aim at the different vehicle type, the simulation has each kind of gathering signaling message which the measuring appliance needs, and through the CAN connection with was measured the measuring appliance carries on the correspondence, thus realization automobile condition information real-time feedback.This paper mainly contains:1 Investigation and study, portable automobile measuring appliance examination system research present situation and existence question. Carries on the analysis to each kind of automobile measuring appliance, then carries on the analysis, processing, the synthesis to the data. Consults the correlation data, determined the research topic, and makes the feasibility analysis.2 Build based on LabVIEW portable automobile measuring appliance examination system correlation hardware and software platform.(1) The automobile measuring appliance test system hardware system mainly includes the labor to control machine (is entire control system cerebrum), the PXI board card (PXI6528 is together static numeral I/O board card, specially aims at certain change slow digital signal, and has 24 groups inputs and 24 groups outputs, both may gather digital signal, and may outward output), the signal connecting box, the data communication transfers the plate change card, the CAN card, the programmable network resistance, the electric power supply as well as is examined the measuring appliance and so on the main part.(2) The measuring appliance examination system software uses NI Corporation the Lab VIEW platform to carry on the design, this system uses Lab VIEW the presente in figures and diagrams program language, by one very direct-viewing method establishment front panel man-machine contact surface and flow chart.3 The relapse experiment, does with other automobile measuring appliance test system compared to, the union full-scale test result, confirms the appraisal examination system repeatedly the accuracy and appraises the software the validity.This article the data communication transformation card which and own researches and develops using the NI Corporation's software and hardware series product, needs each kind of simulation, the numeral, the switch, CAN according to the portable automobile measuring appliance examination system and so on each kind of signal parameter, uses NI the PXI board card and the data communication transformation card connects the good hardware electric circuit, in this hardware foundation, software platform carries on the development through NI Corporation's LabVIEW to the entire test system, finally will propose a complete portable automobile measuring appliance examination system.
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