Design and Implementation of Vehicle Environment Monitoring System Based on Wireless Sensor Network

With the rapid development of Chinese economy, Our country has been in the forefront of automobile producing countries. As the number of cars continues to rise, people pay more and more attention to the interior environment, the interior air quality requirements are also constantly improving, the interior environment problems are widely concerned. This paper designs a car environment monitoring system with wireless sensor network as serial port. The system is composed of single chip microcomputer, wireless sensor network technology and sensor module. The gas sensor is used to detect the concentration of formaldehyde, PM2.5, carbon monoxide and carbon dioxide, which have great influence on human health. The parameters collected by various sensors in the car are transmitted to the main control chip STM32F103RCT6 through the wireless sensor network module. STM32F103RCT6 analyzes and processes the data to achieve the goal of monitoring the air quality in the car. When the concentration of harmful gas in the car exceeds the threshold value, the voice broadcast can timely remind people to deal with the environment in the car, reduce the harmful gas in the car, so as to achieve the purpose of improving the driving environment, to meet people's health needs for the air environment in the car.