Transportation hubs cover places such as airports, railway stations, bus stations and ports. They are the key nodes for the large-scale flow of people and goods, and play a vital role in regional and even national transportation, economic development and external connections. These places usually cover a large area and have complex and diverse architectural structures. There are both open aprons, platforms and squares, and relatively enclosed terminal buildings, waiting halls and other areas. Meanwhile, the airspace around transportation hubs has dense air routes and strict air traffic management requirements. Once drones break in, it is very easy for them to disrupt the normal flight order or affect the operational safety of ground transportation.