论文标题

可用的多目标和多向RRT*机器人路径计划系统

Informable Multi-Objective and Multi-Directional RRT* System for Robot Path Planning

论文作者

Huang, Jiunn-Kai, Tan, Yingwen, Lee, Dongmyeong, Desaraju, Vishnu R., Grizzle, Jessy W.

论文摘要

多目标或多末期路径计划对于移动机器人应用(例如移动性,机器人检查和长途旅行)充电至关重要。这项工作提出了一个随时随地的迭代系统,以同时解决多目标路径计划问题并确定目的地的访问顺序。该系统由任何时间可用的多目标和多向RRT*算法组成,以形成一个简单的连接图,以及由增强的最便宜的插入算法和遗传算法组成的提议的求解器,以使多项式时间中放松的旅行者问题解决。此外,通常为机器人检查和车辆路线提供了路点列表,以便机器人可以优先访问某些设备或感兴趣的区域。我们表明,所提出的系统可以固有地纳入此类知识,并可以通过具有挑战性的拓扑来导航。在为现实世界驾驶应用程序构建的大型且复杂的图表上评估了拟议的任何时间系统。所有实现均在多线程C ++中进行编码,可在以下网址提供:https://github.com/umich-bipedlab/imomd-rrtstar。

Multi-objective or multi-destination path planning is crucial for mobile robotics applications such as mobility as a service, robotics inspection, and electric vehicle charging for long trips. This work proposes an anytime iterative system to concurrently solve the multi-objective path planning problem and determine the visiting order of destinations. The system is comprised of an anytime informable multi-objective and multi-directional RRT* algorithm to form a simple connected graph, and a proposed solver that consists of an enhanced cheapest insertion algorithm and a genetic algorithm to solve the relaxed traveling salesman problem in polynomial time. Moreover, a list of waypoints is often provided for robotics inspection and vehicle routing so that the robot can preferentially visit certain equipment or areas of interest. We show that the proposed system can inherently incorporate such knowledge, and can navigate through challenging topology. The proposed anytime system is evaluated on large and complex graphs built for real-world driving applications. All implementations are coded in multi-threaded C++ and are available at: https://github.com/UMich-BipedLab/IMOMD-RRTStar.

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