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It's no secret that the main problem of drones on batteries is the operating time in flight mode. It is often proposed to solve it either by switching to a more energy-intensive source of energy, or by remote charging. The original solution in the form of installation of a solar cell on the Copter, or work from a long wire, I in this case, I do not take into account.
 
 
My solution is much simpler, cheaper and it reminds me of the process of playing with a toy known all over the world.
 
 
To begin with, I will give examples of technologies that will form the basis of a "matryoshka".
 
 

 
 
A drone with hands to grab items. This will be the basis for the possibility of providing a process for replacing batteries.
 
 
There is also a patent from IBM, which describes the "air relay" system. UAVs in this case will have a movable guide plate mounted in the lower part where the bag would be held in place at the end of the pull-out platform provided with an electromagnetic coupling device. Meanwhile, on the upper side there would be a special hand with a docking station at the end. Enter , you are welcome.
Which idea is better?
Multicopter Matryoshka
multicopter - catcher of the ball (snitch)
Voted by 1 user. Abstained 3 users.