Dynamic testing is actually testing during the course of vehicle emissions, reflecting the real situation. Through the integration of detection equipment and analysis software, it realized real-time detection, data analysis and troubleshooting. Using single-chip microcomputer control technology development, it designed microcontrollers and gas sensors as the core of the hardware system. Using embedded C language, it designed software system of according with national emission standards, realized the PC and the realization of hardware interconnection, completed dynamic testing, calibration and communications functions, etc. It used wireless communication technology for data transmission, thus saving space and line interference. Promoting the process of automobile exhaust emission control in China, the study provides new ideas of management of vehicle emissions.
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