Landing platforms’ automation is aimed at servicing vertical take-off and landing UAVs between flights and maintaining their airworthiness. Over the last few years, different designs for the landing platforms have been proposed. This shows a strong development and establishment of automatic landing platforms with UAV positioning devices on the landing site. Positioning and safe fixation of the UAV are some of the main features of the landing platform, especially if it is mounted on a movable vehicle. This article focuses exclusively on the landing platform and its elements that provide the positioning of the UAV by affecting it during and after the landing. Both active devices and mechanisms and passive elements used for positioning are considered. This article, based on the review of recent patents and publications, gives the classification of positioning approaches used in landing stations with the analysis of the required landing precision, as well as the pros and cons of each type of approach.
Abstract. The paper shows approach of unmanned surface vehicle motion planning in an environment with obstacles. The structure of the control system hardware, software architecture, based on client-server model with the loose coupling in ROS software environment, is presented. Global planner is designed using the method of Generalized Voronoi Diagrams. Local planner is implemented using the unstable regimes of control to bypass obstacles near USV. The results of simulation, which showed the efficiency of the proposed approaches, are presented.
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