Discrete event diagnosis using labeled Petri nets. An application to manufacturing systems

被引:137
|
作者
Cabasino, M. P. [1 ]
Giua, A. [1 ]
Pocci, M. [1 ]
Seatzu, C. [1 ]
机构
[1] Univ Cagliari, Dept Elect & Elect Engn, I-09124 Cagliari, Italy
关键词
Fault diagnosis; Discrete event systems; Petri nets; Labeled Petri nets; FAULT-DIAGNOSIS; FAILURE DIAGNOSIS;
D O I
10.1016/j.conengprac.2010.12.010
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper an approach to on-line diagnosis of discrete event systems based on labeled Petri nets is presented. The approach is based on the notion of basis markings and justifications and it can be applied both to bounded and unbounded Petri nets whose unobservable subnet is acyclic. Moreover it is shown that, in the case of bounded Petri nets, the most burdensome part of the procedure may be moved off-line, computing a particular graph called Basis Reachability Graph. Finally, the effectiveness of the proposed procedure is analyzed applying a MATLAB diagnosis toolbox we developed to a manufacturing example taken from the literature. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:989 / 1001
页数:13
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