Design and Implementation of Environment Monitor for Urban Rail Transit

In order to monitor the gas of urban rail transit station in real time and effectively, this paper designs a real-time multi-element integrated real-time monitor based on STM32 series chip, which combines the advanced signal processing technology, multi-sensor identification technology and system integration technology, aiming at the unique characteristics of micro environment of rail transit station, and integrates a variety of different modes of gas detection Sensors and weather sensors are integrated at chip level and device level to overcome the technical problems of integration, miniaturization and modularization. Real time monitoring and display of 10 gas parameters such as oxygen, carbon dioxide, carbon monoxide, sulfur dioxide and 5 meteorological parameters such as temperature, humidity, wind speed, air pressure and wind direction are realized.