South Korean researchers have developed a transport drone flying on multiple flexible rotors that self-correct to stay level in flight and can be used as a "flying shopping cart" to carry goods over uneven terrain such as stairs.
The prototype developed by a Seoul National University of Science and Technology team has a cargo platform mounted on top of a multi-rotor drone and is handled by a person using gentle force to guide the hovering aircraft.
Members of the team demonstrated the hovering platform with a handle bar much like one on a push shopping cart moving objects up and down stairs and loading boxes on top as it hovered mid-air and maintained its balance by using a centre of mass estimation algorithm.
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