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Open AccessArticle

UAV Flight and Landing Guidance System for Emergency Situations

School of Electrical Engineering, Korea University, Seoul 136-713, Korea
Author to whom correspondence should be addressed.
This mansucript is extension version of the conference paper: Chung, A.Y.; Lee, J.Y.; Kim, H. Autonomous mission completion system for disconnected delivery drones in urban area. In Proceedings of the 2017 IEEE 7th Conference on Robotics and Biomimetics (ROBIO), Macau, China, 5–8 December 2017.
These authors contributed equally to this work.
Sensors 2019, 19(20), 4468;
Received: 30 August 2019 / Revised: 11 October 2019 / Accepted: 14 October 2019 / Published: 15 October 2019
Unmanned aerial vehicles (UAVs) with high mobility can perform various roles such as delivering goods, collecting information, recording videos and more. However, there are many elements in the city that disturb the flight of the UAVs, such as various obstacles and urban canyons which can cause a multi-path effect of GPS signals, which degrades the accuracy of GPS-based localization. In order to empower the safety of the UAVs flying in urban areas, UAVs should be guided to a safe area even in a GPS-denied or network-disconnected environment. Also, UAVs must be able to avoid obstacles while landing in an urban area. For this purpose, we present the UAV detour system for operating UAV in an urban area. The UAV detour system includes a highly reliable laser guidance system to guide the UAVs to a point where they can land, and optical flow magnitude map to avoid obstacles for a safe landing. View Full-Text
Keywords: UAV; laser guidance; emergency landing; particle filter; optical flow UAV; laser guidance; emergency landing; particle filter; optical flow
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Lee, J.Y.; Chung, A.Y.; Shim, H.; Joe, C.; Park, S.; Kim, H. UAV Flight and Landing Guidance System for Emergency Situations . Sensors 2019, 19, 4468.

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    Description: Representative video of UAV detour system in the manuscript
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