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arXiv 1909.04313cs.RO
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机器人接触的凸控制器综合

Convex Controller Synthesis for Robot Contact

Eureka Robotics(尤里卡机器人公司);Nanyang Technological University(南洋理工大学)

Hung Pham, Quang-Cuong Pham

摘要:

控制接触确实具有挑战性,这一直是将工业机器人部署到非结构化/以人为中心的环境中的主要障碍。更具体地说,主要挑战是:㈠如何确保任何时候的稳定性; ㈡如何满足特定任务的业绩规格;(iii)如何在环境不确定性、机器人参数不确定性、传感器和致动器时间延迟、外部扰动等情况下实现(i)和(ii)。本文提出了一种基于鲁棒控制理论和凸优化的凸控制器综合方法。在两个物理交互任务-机器人的手引导和滑动的表面上具有不同的和未知的刚度-我们表明,CCS控制器优于他们的经典同行在一个重要的方式。

英文摘要:

Controlling contacts is truly challenging, and this has been a major hurdle to deploying industrial robots into unstructured/human-centric environments. More specifically, the main challenges are: (i) how to ensure stability at all times; (ii) how to satisfy task-specific performance specifications; (iii) how to achieve (i) and (ii) under environment uncertainty, robot parameters uncertainty, sensor and actuator time delays, external perturbations, etc. Here, we propose a new approach -- Convex Controller Synthesis (CCS) -- to tackle the above challenges based on robust control theory and convex optimization. In two physical interaction tasks -- robot hand guiding and sliding on surfaces with different and unknown stiffnesses -- we show that CCS controllers outperform their classical counterparts in an essential way.

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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