Development upper Air Observation Method Using UAV (Unmanned Aerial Vehicle)

In recent years, adoption of drone (UAV; Unmanned Aerial Vehicle), represented by radio-controlled helicopter, has rapidly increased and is recognized in such fields as inspection of disaster areas, or maintenance management of bridges in off -limits areas． In this study, assuming the adoption of UAV in the observations of temperature and wind in upper air, the posture stability of UAV in strong wind was investigated．In addition, the relationship between wind speed and pitch angle of UAV was clarified, and feasibility of the estimation method of upper wind from the posture stability data of UAV was studied．In this study, the maximum safe wind speed for observation using UAV was about 15m/s．Moreover, an analysis of the pitch and yaw angle of UAV shows that the possibility of estimation for wind speed and wind direction in upper air.In recent years, adoption of drone (UAV; Unmanned Aerial Vehicle), represented by radio-controlled helicopter, has rapidly increased and is recognized in such fields as inspection of disaster areas, or maintenance management of bridges in off -limits areas． In this study, assuming the adoption of UAV in the observations of temperature and wind in upper air, the posture stability of UAV in strong wind was investigated．In addition, the relationship between wind speed and pitch angle of UAV was clarified, and feasibility of the estimation method of upper wind from the posture stability data of UAV was studied．In this study, the maximum safe wind speed for observation using UAV was about 15m/s．Moreover, an analysis of the pitch and yaw angle of UAV shows that the possibility of estimation for wind speed and wind direction in upper air