UAV flight plan software : first implementation of UP 23 d

UAVs flight are actually planned only on the experience of pilots, acquiring most of time three or more time the images needed. This is a time consuming and autonomy reducing procedure. These last two aspects are strategic when extensive survey are needed as in the case of large city center and thus when in emergency situations. For example: historic center of L’Aquila city suffered big damages from the well known main seismic event on 6th April 2009. Causes and modality of the collapse of some buildings are still under investigation. The earthquake caused more than 300 fatalities, thousands of injuries, extensive and severe damage to buildings, structures and infrastructures. About 16.000 buildings are completely or partially destroyed: about 80,000 residents were evacuated and more than 25,000 remained homeless. During the emergency a continuous monitoring of all building is crucial in order to guarantee that each structure at least will not worsen its stability until the final reconstruction is completed. To achieve a complete reconstruction a detailed survey of all building is performed using different techniques and sensors, between them the geomatic techniques as total stations, near photogrammetry, and laser scanners. Even if all these techniques can perfectly respond to many crucial post hazard needs, there are still many monitoring that cannot be completely carried on with traditional techniques. Some difficulties are related to the morphology and the architectural particularities typical of medieval city centers like the one of L’Aquila. For these reasons, in this work, a survey methodology using multirotor UAVs (Unmanned Aerial Vehicles) is proposed; UAVs are fully remote controlled and so they will allow high quality photogrammetric image capturing roofs and facades of structures in urban centers. In particular we’ll illustrate a scientific package that was implemented specifically for this task of planning the flight to improve the optimization of the path to obtain a stereoscopic vision.