From Popular Science:
In “Trajectory Management of the Unmanned Aircraft System (UAS) in Emergency Situation,” author Andrzej Majka of Poland’s Rzeszów University of Technology analyzes how drones crash, and how to minimize harm when they do. Focusing on engine failures, Majka examined three scenarios: the drone runs short on flight time, the engine performance gets worse, or the engine’s power cuts out entirely. For all scenarios, Majka’s goal was to come up with a mathematical formula that could steer the drone to safety in the shortest possible distance while avoiding off-limits or dangerous areas.
It’s more complicated than just flying the shortest possible path to a landing sight, but safer.
Welcome to drone day on the Adafruit blog. Every Monday we deliver the latest news, products and more from the Unmanned Aerial Vehicles (UAV), quadcopter and drone communities. Drones can be used for video & photography (dronies), civil applications, policing, farming, firefighting, military and non-military security work, such as surveillance of pipelines. Previous posts can be found via the #drone tag and our drone / UAV categories.