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 is provided with: a converter module that operates on a storage battery; an onboard communication means; an FDR module; a drive unit or the like, not illustrated; a leg section that contacts or approaches a landing port; and a charging terminal for supplying power for charging to the storage battery, the charging terminal being disposed in the proximal area. The landing port is the landing port where the drone lands, and has a projection for guiding the leg section onto a planar section.