Fecha de publicación: 30/06/2020 Fuente: Wipo "IOT" The utility model discloses a fresh air environment detector based on the IOT technology. The system comprises a power supply module, a sensor acquisition module, a communication module and an MCU processor, the MCU processor is connected with the power supply module, the sensor acquisition module and the communication module, and the communication module comprises a WIFI wireless communication module, an NB-IOT wireless communication module, a 4G wireless communication module and a GPRS wireless communication module; the sensor acquisition module comprises a sensor used for acquiring temperature, humidity, carbon monoxide, carbon dioxide, oxygen, ozone, formaldehyde, TVOC, PM1.0, PM2.5, PM10, illumination intensity and noise. According to the fresh air environment detector, the NB-IOT/WIFI/GPRS/4G wireless communication technology is adopted, the sensor data acquisition technology is combined, overall solution from perception to wireless transmission is achieved, and the fresh air environment detector has the advantages of being high in stability, low in cost, comprehensive in monitoring and the like.