Research On Air Environment Monitoring And Control System Of Coach Based On Wireless Network

With the continuous improvement of people's living standard and the rapid development of bus industry technology,people's demand for air environment in passenger cars is getting higher and higher.Although the internal air environment monitoring system installed in some buses can realize the adjustment of temperature and humidity in the vehicle,there are some shortcomings,such as the poor ability to improve the air environment in the car,the power consumption of the system and the single monitoring field.Therefore,the air environment monitoring system for passenger cars is now developing towards automation,intellectualization,energy saving and diversified monitoring fields.Therefore,how to address the existing shortcomings is of great significance in the vehicle environment and regulation based on wireless network.The design idea and design method of air environment monitoring and control in passenger cars are presented in this paper.With ARM as the core component,the hardware circuit and software are designed to monitor the temperature,humidity,PM2.5 concentration and formaldehyde concentration in the bus.Through the analysis of the parameters acquired by the ZigBee network,the adjustment and control of the air environment inside the vehicle is realized.In this paper,the design method of the air environment monitoring system in the bus is verified by the experiment,and the sensor error,the communication distance,the stability of the system operation and the sensitivity are tested respectively.The results show that the design of air environment monitoring and control system based on wireless network is reasonable.It meets the people's demand for the healthy and comfortable air environment in the bus,and has played a very good role in promoting the development of the air environment monitoring technology in our country.