Abstract: Disclosed are an RTK base station apparatus and a signal interaction system and method. The apparatus includes: a base station body, including a frame and a main control module; a top antenna located at the top of the frame of the base station body and being mainly for coverage of radio waves in the air; and a bottom antenna located at the bottom of the frame of the base station body and being mainly for coverage of radio waves on the ground. The main control module includes an antenna selection unit. The antenna selection unit is in a communication connection with the top antenna and the bottom antenna, and is configured to alternately control according to a target coverage region of a signal to be sent, the top antenna and/or the bottom antenna to send the signal.

Abstract: This document discloses a communication system and method for unmanned aerial vehicle. The communication system includes at least one controller, at least one unmanned aerial vehicle and a mesh device. The controller, the unmanned aerial vehicle, and the mesh device serve as mesh nodes, respectively, and the mesh nodes communicate with each other through a mesh network. Technical solutions provided by the embodiments of the present disclosure may reduce transmission power of the controller, increase endurance time of the controller, and reduce an antenna alignment requirement. Therefore, difficulty of operation is reduced, network is flexibly organized, and functions of one controller to multiple unmanned aerial vehicles, multiple controllers to one manned aerial vehicle and multiple controllers to multiple unmanned aerial vehicles may be conveniently realized.