Aerial vehicle and tower including charging port

It is desirable to enable an aerial vehicle, such as a drone that performs maintenance and management of an overhead power line, to fly for long periods of time without landing on land and receive electrical energy from the overhead power line and a tower. In the present invention, a magnetic field generating module is attached to the aerial vehicle. The aerial vehicle itself generates electricity using a magnetic field emitted by an overhead power line, and the electricity is used as a power source of the aerial vehicle, which enables the aerial vehicle to continue flying for a long period of time. Additionally, by providing a charging port on a tower supporting the overhead power line, the aerial vehicle can continue to fly by charging a battery without landing on the ground. Furthermore, straddling or hanging from an overhead power line during flight can reduce battery drain and make it possible to fly for a longer period of time.