Alarm Flood Clustering improves Cause and Effect Analysis of Process Alarm Data

被引:0
|
作者
Caspari, Adrian [1 ]
Thiedemann, Maximilian F. [1 ,2 ]
Bussmann, Paul L. [1 ]
Leifeld, Thomas [1 ]
Li, Wan [2 ]
Richter, Nils [1 ]
Vey, Daniel A. [1 ]
Zhao, Yuanchen [2 ]
Kleinert, Tobias [2 ]
机构
[1] BASF SE, Ctr Expertise Automat Technol, GET EA, D-67056 Ludwigshafen, Germany
[2] Rhein Westfal TH Aachen, Chair Informat & Automat Syst Proc & Mat Technol, Turmstr 46, D-52064 Aachen, Germany
关键词
D O I
10.23919/ECC57647.2023.10178376
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Cause and effect analyses can reveal useful insights about the information flow within process alarm data, which can, in turn, be used to improve the process performance. Cause and effect analyses require selecting suitable time windows of the historical alarm data, as performing the analysis on the entire time horizon or unsuitable windows might negatively influence the analysis due to noise. This motivates the combination of alarm flood identification, clustering, and cause and effect analysis. Hence, we propose to combine a causal inference analysis based on Direct Transfer Entropy (DTE) with alarm flood detection and clustering to perform the DTE analysis on reasonable time intervals. Our approach performs an alarm data clustering first to find intervals of clusters of similar alarm floods. Afterward, we calculate the DTEs on the found alarm flood cluster intervals. Our results show that the combination of clustering and cause and effect analysis reveals results that were not feasible before. This facilitates analyzing the causal relations in the alarm data. The approach reduces the noisy influence of random alarms on the cause and effect analysis, and provides a clearer structure of the causal relations in the alarm data.
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页数:6
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