Fecha de publicación: 21/07/2017 Fuente: Wipo "IOT" The invention discloses an NB-IoT wireless PM2.5 monitor comprising a main control MCU, a PM2.5 dust sensor, an NB-IoT wireless transmission chip and a compatible GPS positioning chip, wherein the GPS communicates with the MCU, and the PM2.5 dust sensor communicates with the MCU through serial ports, and the NB-IoT chip communicates with a main control chip through an SPI. According to the NB-IoT wireless PM2.5 monitor disclosed by the invention, data transmission is carried out by means of an NB-IoT network. The detector adopts an MCU + NB-IoT + PM2.5 dust sensor model design, the main control chip sends the data collected by the sensor through the NB-IoT chip, uploads the data to the background through an NB-IoT base station and finally sends the data to a monitoring mechanism for judging environmental quality changes. The detector is compatible with the GPS chip and is applied to intensive data collection areas, such as mines, factories, etc.