Reliable Geo-Limitation System for Unmanned Aircraft

NASA Langley Research Center has developed a breakthrough technology called Safeguard that can alleviate hazards with unmanned aircraft (UA) flying beyond their authorized perimeters and into no-fly zones. Safeguard works by continuously detecting a UA’s proximity to virtual perimeters established around no-fly zones (i.e., stay-out or stay-in regions and altitude limits), and taking action to guarantee the perimeters are not breached.