| The application of Unmanned Aerial Vehicle(UAV)has rapidly expanded from military to civilian and commercial applications.At the same time,the phenomenon of "black flying","flying",and "robbery","hijacking" exists widely,which poses a danger to social security.Aiming at these phenomena,this dissertation studied the monitoring and controlling system of ground stations based on the UAVs in the geo-fencing and set up "no-fly zones" to prevent them from “black flying” and "flying".Simultaneously,mixed encryption authentication scheme based on the UAV data links were designed and researched to prevent drones from being "robbed" or "hijacked".The specific study starts from the following two aspects :(1)The UAV ground control station is an i mportant part of the drone system and it is the key equipment for the system of monitor and control.Firstly,for the "black fly" and "flying" phenomena of drones,the reason why it appears is analyzed.The geo-fencing algorithm adapted to the definition and judgment of the “no-fly zone” of the UAV is studied.Otherwise,the algorithms were used to pre-divide the drone’s fencing area and set up the fence event in a research-designed Google Earth and Arc GIS Geo-browser to judge whether the drone enters the "no-fly zone",monitor the drone visually,and alarm the drone pilot to forcefully change the flight path of the drone.At the same time,the three-dimensional model of the drone was constructed and drawn using Sketchup software,and the flight simulation o f the three-dimensional model of the drone was implemented using XML technology.The simulation verified the feasibility of this research at the UAV ground control station and could be effectively implemented so as to improve the application safety of dron es.(2)To aim at the "robbing" and "hijacking" accidents,study the uplink encryption scheme of the UAV data link and improve the security and reliability of data transmission.The specific process: at first,select the high-performance channel coding to improve the reliability and anti-interference of the data link.By studying the two typical encryption algorithms,the typical AES encryption standard and optimized RSA algorithm RSA encryption algorithm,starting from the security requirements of the uplink of the UAV,using the advantages of the two encryption algorithms,propose a hybrid encryption authentication scheme concerning on both transmission efficiency and security.By analyzing this scheme,ensures the confidentiality,integrity and reliability of UAV uplink data.Thereinto,it is also possible to use the geo-fencing function to divide the restricted area and set up the fence event: the prohibition of flying out,in light of the "Pirate Flight" accident.In summary,this dissertation designs a geo-fencing algorithm for the “black fly” and “flying” accidents to realize the geo-fencing function of the UAV ground station.Also,it designs the drone data link for the “robbery” and “hijacking” accidents.The encryption authentication scheme has done some basic research work for the further research and development of ground station systems that meet the safety requirements of drones. |
