Amazon building mobile drone stations, suggests patent

Amazon believes drones are the future of parcel deliveries. But before the company can roll out drone deliveries on a large-scale, it has some major technical challenges to overcome. A key problem is how to keep drones in the air for a long as possible, while keeping them maintained and fully charged. A new patent by Amazon claims to provide a solution; a mobile fleet of drones workstations based on boats, vans and trains. These workstations could repair drones while they are being sent - along with their packages - to areas of high demand.