System prevents speedy drones from crashing in unfamiliar areas

Autonomous drones are cautious when navigating the unknown. Now MIT researchers have developed a trajectory-planning model that helps drones fly at high speeds through previously unexplored areas, while staying safe. The model -- aptly named "FASTER" -- estimates the quickest possible path from a starting point to a destination point across all areas the drone can and can't see, with no regard for safety. But, as the drone flies, the model continuously logs collision-free "back-up" paths that slightly deviate from that fast flight path. When the drone is unsure about a particular area, it detours down the back-up path and replans its path. The drone can thus cruise at high speeds along the quickest trajectory while occasionally slowing down slightly to ensure safety.