基于安全的轮椅速度控制使用强大的自适应模型预测控制
IEEE transactions on cybernetics
|September 15, 2023
概括
这项研究引入了一种新的以安全为中心的电动轮椅控制器,以确保稳定的速度跟踪,即使在干扰的情况下. 它可以安全地引导轮椅,即使给出了不安全的速度命令.
科学领域:
- 机器人和控制系统 机器人和控制系统
- 生物医学工程 生物医学工程
- 人与计算机的交互
背景情况:
- 电动轮椅对于行动障碍者来说至关重要.
- 轮椅控制器的设计必须确保各种用户和场景的安全.
- 现有系统可能会与外部干扰和参数不确定性作斗争.
研究的目的:
- 为电动轮椅提出以安全为导向的速度跟踪控制算法.
- 为了应对外部干扰和动态参数不确定性.
- 确保在速度跟踪过程中满足与安全相关的约束.
主要方法:
- 采用一套成员关系方法在线估计不确定的参数.
- 实施了一个模型预测控制 (MPC) 方案,实时调整.
- 开发了一个控制器来管理允许和不可允许的速度引用.
主要成果:
- 拟议的控制器有效地跟踪轮椅所需的速度,同时遵守安全限制.
- 当目标不安全时,证明能够导航到最近的允许参考点.
- 高准确度的速度跟踪结果验证了控制器在模拟中的效率.
结论:
- 开发的以安全为导向的控制器增强了电动轮椅操作.
- 实时适应和限制满足是安全自动移动的关键.
- 这种方法可以提高电动轮椅系统的可访问性和用户安全性.
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