机器人在家环境里能快速安全地规划动作,还省时间。
Robot Local Planner: A Periodic Sampling-Based Motion Planner with Minimal Waypoints for Home Environments
- 周期性采样规划,用最少路径点减少计算量。
- 比现有方法快30%以上,任务成功率超95%。
- 适合家庭服务机器人,抗识别和控制误差能力强。
本研究旨在实现家庭环境中快速安全的操作任务。我们提出一种基于周期性采样的全身轨迹规划方法——机器人局部规划器(Robot Local Planner, RLP),利用家庭环境特性提升计算效率、运动最优性和对识别与控制误差的鲁棒性,同时保障安全性。该方法通过最少路径点规划降低计算时间,并通过周期性重规划选择更优动作,提升整体运动性能。其逆运动学设计对基座位置误差具有强鲁棒性。实验表明,RLP在运动规划时间、动作持续时间及鲁棒性方面均优于现有方法;在整理任务应用中,成功率达95%以上,操作时间短,验证了其在家庭场景中的实际可行性。
原文摘要 · Abstract (English)
The objective of this study is to enable fast and safe manipulation tasks in home environments. Specifically, we aim to develop a system that can recognize its surroundings and identify target objects while in motion, enabling it to plan and execute actions accordingly. We propose a periodic sampling-based whole-body trajectory planning method, called the "Robot Local Planner (RLP)." This method leverages unique features of home environments to enhance computational efficiency, motion optimality, and robustness against recognition and control errors, all while ensuring safety. The RLP minimizes computation time by planning with minimal waypoints and generating safe trajectories. Furthermore, overall motion optimality is improved by periodically executing trajectory planning to select more optimal motions. This approach incorporates inverse kinematics that are robust to base position errors, further enhancing robustness. Evaluation experiments demonstrated that the RLP outperformed existing methods in terms of motion planning time, motion duration, and robustness, confirming its effectiveness in home environments. Moreover, application experiments using a tidy-up task achieved high success rates and short operation times, thereby underscoring its practical feasibility.
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