Real-time pattern matching and ranking for early prediction of industrial alarm floods

MR Parvez, W Hu, T Chen - Control Engineering Practice, 2022 - Elsevier
Early prediction of an incoming alarm flood sequence can provide valuable information to
industrial operators, so as to facilitate taking corrective actions in time. A real-time pattern …

A priority-aware sequential pattern mining method for detection of compact patterns from alarm floods

W Hu, Z Wang, J Wang - Journal of Process Control, 2023 - Elsevier
Alarm floods are commonly present in modern complex industrial process, and usually
degrade the performance of the alarm systems severely. In an alarm flood, the massive …

Multivariate nuisance alarm management in chemical processes

R Kaced, A Kouadri, K Baiche, A Bensmail - Journal of Loss Prevention in …, 2021 - Elsevier
Alarm systems are of vital importance in the safe and effective functioning of industrial
plants, yet they frequently suffer from too many nuisance alarms (alarm overloading). It is …

Root cause identification of industrial alarm floods using word embedding and few-shot learning

W Hu, G Yang, Y Li, W Cao… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Alarm systems are commonly deployed in modern industrial facilities to monitor process
operations. However, due to the presence of nuisance alarms and alarm floods, their …

Design of delay timers based on estimated probability mass functions of alarm durations

J Wang, Z Wang, X Zhou, F Yang - Journal of Process Control, 2022 - Elsevier
Delay timers are widely used in practice to remove nuisance alarms. This paper proposes a
method to design delay timers based on probability mass functions (PMFs) of alarm …

Design of serial alarm systems based on deadbands and delay timers for removing false alarms

P Gyasi, J Wang - Process Safety and Environmental Protection, 2022 - Elsevier
Alarm deadbands and delay timers are widely used in practice to remove false alarms. This
paper proposes a method to design serial alarm systems that are composed of alarm …

Simulating industrial alarm systems by extending the public model of a vinyl acetate monomer process

G Yang, W Hu, W Cao, M Wu - 2020 39th Chinese Control …, 2020 - ieeexplore.ieee.org
The research area of industrial alarm monitoring and management has been attracting
increasing studies in the past decade. A variety of advanced alarm management techniques …

An adaptive method to update alarm deadbands for non-stationary process variables

P Gyasi, J Wang, F Yang, I Izadi - Process Safety and Environmental …, 2023 - Elsevier
False alarms are detrimental to the safety of industrial processes and are often removed by
alarm deadbands. However, most of the existing methods design alarm deadbands based …

Design of alarm thresholds and delay timers for non-IID process variables based on alarm durations

P Gyasi, J Wang - Process Safety and Environmental Protection, 2023 - Elsevier
Many alarm systems suffer from false and missed alarms that are detrimental to the safety
and efficiency of industrial process operations. This paper proposes a method to jointly …

[HTML][HTML] Correlation degree and clustering analysis-based alarm threshold optimization

G Zhang, Z Wang - Processes, 2022 - mdpi.com
In industrial practice, excessive alarms and high alarm rates are mostly generated from
unreasonable settings to variable alarm thresholds, which have become the significant …