An Improved Path Planning Algorithm for Mobile Robots Based on RRT-Connect
摘要
This paper addresses the limitations of the bidirectional Rapidly-exploring Random Tree algorithm (RRT-Connect) in mobile robot path planning, particularly its slow convergence speed and high memory consumption. We propose an improved algorithm that integrates the Artificial Potential Field (APF) method with RRT-Connect. The enhanced algorithm employs three key innovations: (1) variable step-size sampling strategy, (2) APF-guided intelligent tree expansion toward target regions, and (3) a node pruning strategy to reduce memory usage. Comprehensive experiments conducted in various typical scenarios demonstrate that the proposed algorithm significantly outperforms conventional RRT and RRT-Connect methods in terms of path quality, convergence speed, and computational efficiency.