TY - GEN
T1 - Use of two-layer cause-effect model to select source of signal in plant alarm system
AU - Takeda, Kazuhiro
AU - Hamaguchi, Takashi
AU - Noda, Masaru
AU - Kimura, Naoki
AU - Itoh, Toshiaki
PY - 2010/11/23
Y1 - 2010/11/23
N2 - Alarm systems provide an interface between operators and the machinery in a chemical plant because they allow abnormalities or faults caused by operators to be detected at an early stage. Alarms should be used to enable operators to diagnose faults and plan countermeasures, and nuisance alarms should be eliminated. We propose the use of a selection algorithm of sets of pairs of alarm variables and their signs. The signs mean the upper or lower limits of the alarm variables. The selected sets of pairs are theoretically guaranteed to be able to qualitatively distinguish all assumed faults. We propose using a two-layer cause-effect model for the algorithm, which represents the cause and effect relationship between state variables based on the topology of a plant. This model is applied to a simple process. The simulation results illustrate the usefulness of our method.
AB - Alarm systems provide an interface between operators and the machinery in a chemical plant because they allow abnormalities or faults caused by operators to be detected at an early stage. Alarms should be used to enable operators to diagnose faults and plan countermeasures, and nuisance alarms should be eliminated. We propose the use of a selection algorithm of sets of pairs of alarm variables and their signs. The signs mean the upper or lower limits of the alarm variables. The selected sets of pairs are theoretically guaranteed to be able to qualitatively distinguish all assumed faults. We propose using a two-layer cause-effect model for the algorithm, which represents the cause and effect relationship between state variables based on the topology of a plant. This model is applied to a simple process. The simulation results illustrate the usefulness of our method.
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U2 - 10.1007/978-3-642-15390-7_39
DO - 10.1007/978-3-642-15390-7_39
M3 - Conference contribution
AN - SCOPUS:78449245270
SN - 3642153895
SN - 9783642153891
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 381
EP - 388
BT - Knowledge-Based and Intelligent Information and Engineering Systems - 14th International Conference, KES 2010, Proceedings
T2 - 14th International Conference on Knowledge-Based and Intelligent Information and Engineering Systems, KES 2010
Y2 - 8 September 2010 through 10 September 2010
ER -