手把手教机器人用非线性模型预测控制避障,确保安全
A Step-by-step Guide on Nonlinear Model Predictive Control for Safe Mobile Robot Navigation
- 分步构建非线性模型预测控制框架,兼顾状态与输入约束
- 在干扰和测量噪声下仍能保证机器人不撞障碍物
- 适合想把理论控制算法落地到实际机器人的工程师
设计一种能在障碍物密集环境中安全导航的移动机器人模型预测控制(MPC)方案是机器人领域复杂而关键的任务。本文中,安全指在存在扰动和测量噪声的情况下,机器人仍需遵守状态与输入约束并避免碰撞。本技术报告提供了一套实现非线性模型预测控制(NMPC)的分步方法,旨在满足上述安全需求。尽管已有大量书籍和综述全面介绍线性MPC(LMPC)、NMPC及其在多个领域的应用,但本报告不重复这些系统性综述,而是聚焦于将NMPC作为安全移动机器人导航的基础。目标是为从理论概念到数学证明再到实际实现提供一条实用且易懂的路径,强调安全性和性能保障。报告面向希望弥合理论与实际机器人应用之间差距的研究人员、机器人工程师及实践者。文档并非一成不变,若发现理论错误,欢迎通过邮件联系更正。
原文摘要 · Abstract (English)
Designing a model predictive control (MPC) scheme that enables a mobile robot to safely navigate through an obstacle-filled environment is a complicated yet essential task in robotics. In this technical report, safety refers to ensuring that the robot respects state and input constraints while avoiding collisions with obstacles despite the presence of disturbances and measurement noise. This report offers a step-by-step approach to implementing nonlinear model predictive control (NMPC) schemes addressing these safety requirements. Numerous books and survey papers provide comprehensive overviews of linear MPC (LMPC), NMPC, and their applications in various domains, including robotics. This report does not aim to replicate those exhaustive reviews. Instead, it focuses specifically on NMPC as a foundation for safe mobile robot navigation. The goal is to provide a practical and accessible path from theoretical concepts to mathematical proofs and implementation, emphasizing safety and performance guarantees. It is intended for researchers, robotics engineers, and practitioners seeking to bridge the gap between theoretical NMPC formulations and real-world robotic applications. This report is not necessarily meant to remain fixed over time. If someone finds an error in the presented theory, please reach out via the given email addresses. We are happy to update the document if necessary.
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