Aerial Robot with Electronic Nose for Air Quality Monitoring

This paper presents an air quality measurement system onboard an Aerial robot. Specifically, the system is capable of measuring NO2, CO, O3 and NO pollution levels. Furthermore, it also includes temperature and humidity measurements. An air sampling system has been designed to avoid false readings due to the downwash effect. The air quality measurement system is based on electrochemical sensors. Therefore, it has been previously calibrated in the field using multilinear regression techniques. The data transmission is done wirelessly in real-time via ZigBee. In addition, data is stored locally in case wireless communication is not possible. Finally, a flight test has been performed to verify the correct operation of the system. A stable signal is achieved regardless of the flight of the drone. Besides, it is also possible to detect a NO2 source.