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Fault estimation based on intermediate observer for directed graph multi-mobile robot systems

delete2025-09-01
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PRE
AI
W
Wei‐Ming Li
X
Xudong Ji
陈有东 (Youdong Chen) *
DOI:10.1108/IR-01-2025-0012delete
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Abstract

Abstract

En 中文
PurposeFaults in multi-mobile robot systems (MMRS) can lead to task failures or other serious consequences. The purpose of this paper is to accurately estimate faults in cooperative MMRS, which communication topology is directed graphs, with scenarios such as collaborative transportation, and the authors propose a fault estimation method based on the intermediate observer.Design/methodology/approachThe method solves the observer gain using the H8 performance criterion. It improves estimation accuracy by using centralized and local estimation errors. For calculating the observer's parameter matrices, a solution to linear matrix inequality based on Schur decomposition theorem is proposed.FindingsSimulation and physical experimental results demonstrate that, in MMRS cooperative tasks, the proposed method can accurately estimate the fault of each robot.Originality/valueThe proposed method can accurately estimate faults caused by external interference, centralized errors and localized errors transmitted through communication, providing a basis for control decisions and mitigating the impact of faults on MMRS collaborative transportation with the effectiveness of a greater number of robots and more complex scenarios awaits verification through subsequent research.
Keywords:
Multi-mobile robot systems
Fault estimation
Intermediate observer

Journal

I
Industrial Robot-The International Journal of Robotics Research and Application
IF:
2.5
Papers:
90
Citations:
2.4K

Organization

No organization information available