Vehicle Exhaust Monitoring System Based on ASM

In order to control the pollution of the vehicle emissions, the exhaust monitoring system based on ASM is studied. According to analyzing the methods of detecting the vehicle emissions, ASM is chosen to design the monitoring system. The total plan of the system is designed which is composed of chassis dynamometer, exhaust gas analyzer, main control computer, and so on, and their characteristics and functions are described. The communication interface circuit between the host computer and analyzer is designed based on the RS-232 serial communication protocol. The software design is implemented by the latest object-oriented software programming language. The system software can be divided into there models, and they are realized respectively. The function and operation of the system testing process are discussed in detail. The experiment shows that the system runs stably, and can be controlled flexibly, it can detect the vehicle exhaust in real-time, and can improve the detecting level and accuracy of the exhaust monitoring system.