An Unmanned Aerial Vehicle (UAV) has to possess three abilities to function autonomously. The three abilities are localization, mapping and path planning. Path planning guides the UAV to find a feasible path, meaning a path that meets safety, kinematic and optimization constrains. In order to intercept a moving target, dynamic path planning must be used due to target movement. To produce a feas...

Abstract Combined with the operation specification of building tower cranes, three-dimensional path planning technology cranes and optimization points are studied. The improved RRT-Connect algorithm is proposed. By introducing heuristic information in search, search efficiency quality improved. eliminating invalid path, control burden crane reduced, optimized lifting point movement transformed ...

In free-floating mode, space manipulator systems have their thrusters off, and exhibit nonholonomic behavior due to angular momentum conservation. The system is underactuated and a challenging problem is to control both the end effector location and the base attitude, using manipulator actuators only. Here, a path planning methodology satisfying this double goal is presented. The key idea is to...

This paper proposes genetic algorithms (GAs) for path planning and trajectory planning of an autonomous mobile robot. Our GA-based approach has an advantage of adaptivity such that the GAs work even if an environment is time-varying or unknown. Therefore, it is suitable for both off-line and on-line motion planning. We first presents a GA for path planning in a 2D terrain. Simulation results on...

In order to improve the trajectory planning efficiency and accuracy of multi-joint welding robot, according to the movement feature of multi-joint welding robot, the paper analyzed on existing problems in spatial joint planning of the robot, proposed a terminal priority planning method of robot joint planning, based on the study of energy conservation and accuracy of robot terminal. Using this ...

This paper proposes a path planner for serial manipulators with large number of degrees of freedom, working in cluttered workspaces. Based on the variational principles, this approach involves formulating the path planning problem as constrained minimization of a functional representing the total joint movement over the complete path. We use modified boundary conditions at both ends of the traj...