The prototype quadrocopter from the Imperial College London laboratory is devoid of the Achilles heel of modern autonomous machines - they are all extremely limited in the amount of energy they can take with them in flight. Therefore, some inventors are pursuing the development of innovative fuel cells, while others are experimenting with charging nests on the spiers of houses and lamp posts.
Dr. Sam Aldhea suggested that the batteries be abandoned altogether - instead, his apparatus is equipped with a copper foil frame. It serves as a receiver of electromagnetic waves when the drone is above the conductive plate emitting them. The system is identical to wireless chargers for smartphones of the Qi standard and allows you to transfer energy to the micro-robot without direct contact with it.
A prototype is a prototype - even though the drone is kept in the air, but only at an extremely small distance from the charger. If you lay a highway along which the copter will travel at a height of a couple of centimeters from point A to point B, this negates all the advantages of flying machines. Therefore, so far, the most sensible application of the development is to decorate the scientist's desktop.