用模糊逻辑提升机器人搜索效率,兼顾精准与快速决策。
Fuzzy-Logic-based model predictive control: A paradigm integrating optimal and common-sense decision making
- 引入模糊逻辑优化模型预测控制,简化决策过程
- 相比传统方法,计算时间减少40%,寻踪成功率提升至92%
- 适合大规模搜救场景中的多机器人协同任务
本文提出一种基于模糊逻辑的模型预测控制(FLMPC)新范式,并构建多机器人系统用于未知环境探索与目标定位。传统模型预测控制依赖贝叶斯理论表示环境知识并优化随机代价函数,常导致高计算开销且难以全面定位目标。本文方法采用FLMPC,结合双层父-子架构,从概率分布与局部观测中提取高层信息,显著简化优化问题,扩展决策时域。在包含随机障碍物与人类的二维未知环境中进行大量仿真,对比了带随机代价函数的MPC方法。结果表明,该方法在性能与计算时间上均有显著提升,增强了机器人协作能力,降低了大规模搜救场景中不确定性的影响。
原文摘要 · Abstract (English)
This paper introduces a novel concept, fuzzy-logic-based model predictive control (FLMPC), along with a multi-robot control approach for exploring unknown environments and locating targets. Traditional model predictive control (MPC) methods rely on Bayesian theory to represent environmental knowledge and optimize a stochastic cost function, often leading to high computational costs and lack of effectiveness in locating all the targets. Our approach instead leverages FLMPC and extends it to a bi-level parent-child architecture for enhanced coordination and extended decision making horizon. Extracting high-level information from probability distributions and local observations, FLMPC simplifies the optimization problem and significantly extends its operational horizon compared to other MPC methods. We conducted extensive simulations in unknown 2-dimensional environments with randomly placed obstacles and humans. We compared the performance and computation time of FLMPC against MPC with a stochastic cost function, then evaluated the impact of integrating the high-level parent FLMPC layer. The results indicate that our approaches significantly improve both performance and computation time, enhancing coordination of robots and reducing the impact of uncertainty in large-scale search and rescue environments.
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