Alessandro Giua 教授学术报告(IEEE Fellow,“千人计划”特聘教授) 自动控制领域专家)

来源:信息科学与技术学院  作者:刘明慧  日期:2017-11-14  点击数:555



主  讲  人:Alessandro Giua 教授(意大利卡利亚里大学教授、马赛大学教授IEEE Fellow,“千人计划”特聘教授)自动控制领域专家

主  持  人:信息科学与技术学院  童音博士

讲座题目(Title)State estimation and diagnosis of discrete event systems

内容简介(Abstract)Fault diagnosis in dynamic systems is a subject that has received a lot of attention in the past decades: the objective is that of understanding if a system is affected by a malfunctioning, and if so of identifying its nature. In the context of discrete event systems, faults are modeled by unobservable events whose firing cannot be directly detected but must be reconstructed on the basis of the observed evolution. This implies that the approaches for diagnosis are strictly related to the problems of designing an observer for state and event sequence estimation and build on these basic results. An additional interesting problem in the context of fault diagnosis is diagnosability analysis, which aims to determine if a system is diagnosable, i.e., if the occurrence of a fault can be identified in a finite number of steps.

Both diagnosis and diagnosability have been mostly studied in the context of finite state automata, and the complexity of solving these problems is often unmanageable due to the state space explosion. However, these shortcomings can be overcome using more powerful and efficient models, such as Petri nets.

This talk aims to present the basic approaches for estimation, diagnosis and diagnosability of discrete event systems. The practical advantages of using Petri net with respect to automata are also shown by means of some examples.

主讲人简介(Biography)Alessandro Giua is professor of Automatic Control at the Department of Electrical and Electronic Engineering (DIEE) of the University of Cagliari, Italy. He is also a professor (on leave) at the Information and Systems Sciences Laboratory (LSIS) of Aix-Marseille University, France. He is a Fellow of the Institute of Electrical and Electronics Engineers for contributions to discrete event and hybrid systems and a recipient of the IFAC Outstanding Service Award. He was a laureate in 2017 of the People's Republic of China Friendship Award, and in 2014 of the Shaanxi government’s Sanqing Friendship Award. He is currently Editor in Chief of the IFAC journal Nonlinear Analysis: Hybrid Systems; Senior Editor of the IEEE Trans. on Automatic Control; and Department Editor of the journal Discrete Event Dynamic Systems. His research interests include discrete event systems, hybrid systems, networked control systems, Petri nets and failure diagnosis.