Air quality detection system based on Beidou positioning and LoRa communication

An air quality detection system based on Beidou positioning and LoRa communication comprises a power module, a microcontroller, a particulate matter detection module, a gas pollutant detection module, a Beidou positioning module and a LoRa communication module, and the power module supplies power to the system; the particulate matter detection module collects concentration data of PM 2.5 and PM10 in air in real time and transmits data signals to the microcontroller. The gas pollutant detection module collects concentration data of CO, SO2, O3 and NO2 in air in real time and transmits data signals to the microcontroller. The Beidou positioning module collects coordinates and time data of a pollution source in real time and transmits a data signal to the microcontroller; the LoRa communication module realizes communication; the microcontroller is used for receiving the data signals, analyzing and processing the received data signals and then uploading the data to the control terminal through the LoRa communicat