Design and Creation of the Automatic Data Testing Tools for Smart Sensor Based on CAN Bus

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As the purpose of environmental protection, NOx sensor is driven to develop. It is built to detect the concentration of nitrogen oxides in the exhaust emissions of motor vehicles. During the development of sensor, the automatic test for the sensor ́s output message is a significant procedure. This article is aimed to design a user friendly test tool based on LabVIEW for real time testing, evaluating and error detecting of sensor data transmitted via CAN bus. Controller area network (CAN) is one of the most widely and frequently used communication protocols in automotive applications. LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a system-design platform and development environment for a visual programming language from National Instruments. NI Company provides flexible and diverse CAN bus interface hardware and software drivers which is useful and necessary for building an automatic test system. It contains the features of configuration, displaying and decoding CAN data frames, checking CAN bus errors, testing and evaluating decoded messages, report generation, signal setting and validation.

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2948-2952

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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