A Design of Wireless Sensor Network with Ultra-low Power for Air Quality Detection

With the development of cities, urban air quality has a significant impact on people’s lives, and real-time monitoring of urban air quality is becoming more and more important. This paper proposes a low-power solution for urban air quality monitoring by integrating Long Range (LoRa) mesh network and Narrowband Internet of Things (NB-IoT). The LoRa mesh network, consisting of a master node and distributed sub-nodes with air quality sensors, enables efficient communication. The NB-IoT module uploads data to the cloud. Utilizing an ATTiny25 processor and solar-powered nodes, the system achieves low power consumption. This integrated approach offers a scalable and real-time solution for urban air quality monitoring.