提出一套工业级人机协作控制框架,支持动态模式切换与实时参数调整。
Demonstrating a Control Framework for Physical Human-Robot Interaction Toward Industrial Applications
- 基于二次规划的力控框架,融合阻抗、零空间阻抗等多模式
- 实现静态与动态场景下严格避障与抗奇异任务跟踪
- 开源可复现,适合工业部署与研究验证
物理人机交互(pHRI)是实现以人为本的工业5.0的关键。然而,现有研究较少关注pHRI在工业级性能上的实际适配。本文提出一种通用控制框架,集成基于力矩的控制模式:阻抗控制、零空间阻抗控制及双阻抗控制,覆盖静态与动态场景。通过二阶二次规划(QP)公式,系统嵌入严格的运动学与碰撞约束作为安全机制,并以加权层次结构保障任务跟踪在奇异性下的鲁棒性。框架部署于配备Bota力/扭矩传感器的Kinova Gen3协作机器人上,末端附加DualShock 4游戏手柄以演示功能。实验支持模式间无缝动态切换及参数实时调节,如位置/力矩控制转换或替换为自研低层力控器。基于开源控制软件mc_rtc,该框架确保科研与工业部署的可复现性,展示了向工业级性能与可重复性迈进的重要一步,具备在工业环境中作为稳健pHRI系统的潜力。
原文摘要 · Abstract (English)
Physical Human-Robot Interaction (pHRI) is critical for implementing Industry 5.0, which focuses on human-centric approaches. However, few studies explore the practical alignment of pHRI to industrial-grade performance. This paper introduces a versatile control framework designed to bridge this gap by incorporating the torque-based control modes: compliance control, null-space compliance, and dual compliance, all in static and dynamic scenarios. Thanks to our second-order Quadratic Programming (QP) formulation, strict kinematic and collision constraints are integrated into the system as safety features, and a weighted hierarchy guarantees singularity-robust task tracking performance. The framework is implemented on a Kinova Gen3 collaborative robot (cobot) equipped with a Bota force/torque sensor. A DualShock 4 game controller is attached to the robot's end-effector to demonstrate the framework's capabilities. This setup enables seamless dynamic switching between the modes, and real-time adjustments of parameters, such as transitioning between position and torque control or selecting a more robust custom-developed low-level torque controller over the default one. Built on the open-source robotic control software mc_rtc, our framework ensures reproducibility for both research and industrial deployment, this framework demonstrates a step toward industrial-grade performance and repeatability, showcasing its potential as a robust pHRI control system for industrial environments.
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