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arXiv 2108.01262cs.ROcs.CVcs.LGcs.MAcs.SYeess.SY
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SABER:数据驱动的异构机器人自主导航运动规划器

SABER: Data-Driven Motion Planner for Autonomously Navigating Heterogeneous Robots

University of California, Los Angeles(加利福尼亚大学洛杉矶分校)

Alexander Schperberg, Stephanie Tsuei, Stefano Soatto, Dennis Hong

摘要:

我们提出了一个端到端的在线运动规划框架,该框架使用数据驱动的方法来引导异构机器人团队实现全局目标,同时避免在不确定的环境中的障碍物。首先,我们使用随机模型预测控制(SMPC)计算控制输入,满足机器人动力学,并考虑在避障过程中的不确定性与机会约束。第二,递归神经网络被用来提供一个快速估计的未来状态的不确定性考虑在SMPC有限时间范围的解决方案,这是训练的各种同时定位与地图构建算法的不确定性输出。当两个或更多的机器人在通信范围内,这些不确定性,然后更新使用分布式卡尔曼滤波方法。最后,使用深度Q学习代理作为高级路径规划器,为SMPC提供目标位置,使机器人朝着所需的全局目标移动。我们的完整方法同时在地面和空中机器人上进行了演示(代码可在:https://github.com/AlexS28/SABER)。

英文摘要:

We present an end-to-end online motion planning framework that uses a data-driven approach to navigate a heterogeneous robot team towards a global goal while avoiding obstacles in uncertain environments. First, we use stochastic model predictive control (SMPC) to calculate control inputs that satisfy robot dynamics, and consider uncertainty during obstacle avoidance with chance constraints. Second, recurrent neural networks are used to provide a quick estimate of future state uncertainty considered in the SMPC finite-time horizon solution, which are trained on uncertainty outputs of various simultaneous localization and mapping algorithms. When two or more robots are in communication range, these uncertainties are then updated using a distributed Kalman filtering approach. Lastly, a Deep Q-learning agent is employed to serve as a high-level path planner, providing the SMPC with target positions that move the robots towards a desired global goal. Our complete methods are demonstrated on a ground and aerial robot simultaneously (code available at: https://github.com/AlexS28/SABER).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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