Research And Development Of Shipborne UAV Mission Planning Technology

In recent years, unmanned aerial vehicles(UAV) have been widely used in agricultural irrigation, security alert, condition monitoring, military operations and other fields. With the application of artificial intelligence technology becoming more and more mature, the main direction of the future development of UAV is also tend to intelligent. Especially when the UAV participates in naval fight, it can reduce the volume of the flight target, increase the flexibility of operations, and reduce military spending and casualties. With the wide applications of UAV technology, the operation with UAV at sea has become one of the trends of the future development in sea combat. Due to the point of take-off and landing points are in the ship, and affected by the sea surface wind and other factors, Ship-borne UAV’s operational action facing the unexpected situation far more than conventional UAV, even it must depend on ship to complete the task. Therefore, how to complete the task more quickly in the complex environment and terrain becomes the research focus of Intelligent Flight of UAV. Early when there is no UAV mission planning technology, we cannot receive timely UAVs performing the task of feedback, and neither can use effective planning algorithm for evaluation and improvement when the UAV is faced with an emergency situation, nor able to make timely adjustment of the most favorable. Therefore, it is urgent to need a set of UAV mission planning system with strong real-time performance, good expansibility and monitoring function to improve the success rate of task execution and reduce unnecessary loss.In order to improve the fault tolerance and the emergency response capability of the UAV, a good task planning and system communication is necessary. The subject of mission planning technology is in-depth study, the constraints of the route planning according to the characteristics of the sea area has been discussed to achieve the use of electronic chart monitoring mission process to adjust tactics, and to study the source specific multicast communication technology as the core, design and development of the Ship-borne UAV mission planning system. In summary, this topic is mainly divided into the following three parts.In the first part, the model of UAV mission planning is established. The UAV mission planning technology is introduced, and the related algorithms of task planning are studied in depth. According to the characteristic of the marine environment analysis and optimization of the artificial intelligence in the classic search algorithms-- A * algorithm, the improved algorithm greatly reducing the vehicle route planning of the scan node, and steepest avoid threat area strategy to simplify the route search space, so that can quickly in real time during the execution of the task in the process of re planning the route.In the second part, in order to monitor and evaluate the task of UAV in real time, the monitoring module based on electronic chart is studied. The Bezier Spline Curve algorithm, received discrete points from the aircraft control system feedback to smooth draw UAV actual route; discusses the conversion relationship between various coordinates in the electronic chart display; and use the double buffer technology and improve the blinking phenomenon in the similar result in the environment of high frame rate.In the third part, in order to make the UAV in the changeful maritime battlefield environment fast accurately complete task of investigation, this paper constructed a Ship-borne UAV mission planning system. The system consists of a UAV mission planning function and real-time monitoring function, and other projects in collaboration with the socket communication technology based on source specific multicast(SSM). Finally, in order to enhance the reusability and extensibility of the system structure, the dynamic object interface is provided, which provides an experimental platform for the comparison of the algorithms and the research and adjustment of the UAV task planning technology. Through the actual operation and test, the research content of this paper is correct and feasible and has high timeliness, which lays a foundation for the research of UAV mission planning technology.In short, UAV mission planning technology in the future without human development will play an important role, a set with monitoring and assessment of functional UAV mission planning system can effectively promote the mission planning technology research and development.