Provided are a device for communicating with and controlling a small unmanned airplane, and a method therefor. In an information processing system to which the present invention is applied, a drone 2 is provided with: a converter module 10 that operates on a storage battery; an onboard communication means 15; an FDR module; a drive unit or the like, not illustrated; a leg section L that contacts or approaches a landing port P; and a charging terminal T2 for supplying power for charging to the storage battery, the charging terminal T2 being disposed in the proximal area. The landing port P is the landing port where the drone 2 lands, and has a projection B for guiding the leg section L onto a planar section F.