A Path Planning Algorithm using Generalized Potential Model for Hyper- Redundant Robots with 2-DOF Joints

• Main Authors: Chien-Chou Lin, Jen-Hui Chuang, Cheng-Tieng Hsieh
• Format: Article
• Language: English
• Published: SAGE Publishing 2011-06-01
• Series: International Journal of Advanced Robotic Systems
• Subjects: Path Planning; Potential Field; Articulated Robot; Motion Planning; Collision Avoidance
• Online Access: http://www.intechopen.com/articles/show/title/a_path_planning_algorithm_using_generalized_potential_model_for_hyper_redundant_robots_with_2_dof_jo

This paper proposes a potential‐based path planning algorithm of articulated robots with 2‐DOF joints. The algorithm is an extension of a previous algorithm developed for 3‐DOF joints. While 3‐DOF joints result in a more straightforward potential minimization algorithm, 2‐DOF joints are obviously more practical for active operations. The proposed approach computes repulsive force and torque between charged objects by using generalized potential model. A collision‐free path can be obtained by locally adjusting the robot configuration to search for minimum potential configurations using these force and torque. The optimization of path safeness, through the innovative potential minimization algorithm, makes the proposed approach unique. In order to speedup the computation, a sequential planning strategy is adopted. Simulation results show that the proposed algorithm works well compared with 3‐DOF‐joint algorithm, in terms of collision avoidance and computation efficiency.