Distributed Fault Diagnosis in Discrete Event Systems With Transmission Delay Impairments

• 成果类型: Article
• 署名作者: Wang, Jiwei; Baldi, Simone; Yu, Wenwu; Yin, Xiang
• 署名单位: Southeast University - China; Southeast University - China; Shanghai Jiao Tong University; Shanghai Jiao Tong University
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2024.3369510
• 发表日期: 2024
• 页码: 5508-5515
• 关键词: Delays; Fault diagnosis; sensors; Heating systems; Temperature sensors; Fans; Automata; diagnosability; Discrete event systems (DES); distributed fault diagnosis; transmission delay impairments

摘要

This note studies the distributed fault diagnosis problem in partially-observed discrete event systems, where the system is monitored by a group of agents to cooperatively diagnose faults within a finite number of steps. The novelty of this work is the creation of a methodology to verify when the faults can be diagnosed even in the presence of transmission delay impairments. To address this scenario, a new distributed diagnosability condition is proposed, which extends decentralized diagnosability conditions proposed in the literature. Such distributed diagnosability condition is then verified via a novel structure named delay recorder and a new diagnosis function. Theoretical analysis shows that the verification method can successfully determine whether the faults can be diagnosed.