Design and implementation of UAV delivery system based on combined BeiDou/visual navigation

With the development of UAV software and hardware, the application of UAVs in the field of material delivery has become more and more extensive. However, the problem of precise positioning of UAVs is the main bottleneck limiting UAV material delivery, and it is urgent to study a reliable navigation and positioning scheme to lay the foundation for the realization of UAV material delivery. In this paper, we propose the use of combined BeiDou/visual navigation to realize UAV autonomous mount and fixed-point material delivery, and study its system model and realizability. Based on the basic mechanical structure of the quadrotor UAV, the system is designed and equipped with BeiDou navigation module, image transmission module, mechanical actuator and other systems to initially realize the task of autonomous UAV mounting and fixed-point material delivery. The UAV system design is improved and the UAV flight coefficients are revised through feedback from several actual flight results to achieve the predetermined success rate. The research results show that the combined Beidou/visual navigation has a very high construction for UAV autonomous mount and fixed-point delivery, and the use of combined Beidou/visual navigation to realize UAV autonomous mount and fixed-point delivery of materials has a broad application prospect.