Industrial alarm systems;
Cause-effect analysis;
Binary sequences;
Transfer entropy;
Direct causality;
CORRELATED ALARMS;
PROPAGATION;
D O I:
10.1016/j.conengprac.2017.04.012
中图分类号:
TP [自动化技术、计算机技术];
学科分类号:
0812 ;
摘要:
A method is proposed to analyze cause-effect relationships among binary-valued alarm variables. A normalized transfer entropy (NTE) and a normalized direct transfer entropy (NDTE) are formulated as basic statistical metrics, with consideration of two specific characteristics of alarm variables, namely, random delays and mutual independence among alarm occurrences. A modified statistical test is developed to determine significance thresholds of NTEs and NDTEs, based on which the cause-effect relationships can be inferred. The effectiveness of the proposed method is illustrated via numerical and industrial case studies. (C) 2017 Elsevier Ltd. All rights reserved.
机构:
Univ Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USAUniv Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USA
Chiang, LH
;
Braatz, RD
论文数: 0引用数: 0
h-index: 0
机构:
Univ Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USAUniv Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USA
机构:
Univ Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USAUniv Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USA
Chiang, LH
;
Braatz, RD
论文数: 0引用数: 0
h-index: 0
机构:
Univ Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USAUniv Illinois, Dept Chem Engn, Large Scale Syst Res Lab, Urbana, IL 61801 USA