Performance evaluation and design for variable threshold alarm systems through semi-Markov process

K Aslansefat, MB Gogani, S Kabir, MA Shoorehdeli… - ISA transactions, 2020 - Elsevier
In large industrial systems, alarm management is one of the most important issues to
improve the safety and efficiency of systems in practice. Operators of such systems often …

Adaptive online optimization of alarm thresholds using multilayer Bayesian networks and active transfer entropy

Y Luo, B Gopaluni, L Cao, Y Wang, J Cheng - Control Engineering Practice, 2023 - Elsevier
Poorly designed alarm thresholds usually lead to significant safety hazards and highly
connected industrial processes. Due to the process condition changes, the traditional alarm …

A novel key performance indicator oriented hierarchical monitoring and propagation path identification framework for complex industrial processes

L Ma, J Dong, K Peng - ISA transactions, 2020 - Elsevier
As the first protective layer for modern complex industrial processes, process monitoring and
fault diagnosis (PM-FD) systems play a vital role in ensuring product quality, overall …

Decentralized adaptively weighted stacked autoencoder-based incipient fault detection for nonlinear industrial processes

H Gao, W Huang, X Gao, H Han - ISA transactions, 2023 - Elsevier
Modern industrial processes often exhibit large-scale and nonlinear characteristics. Incipient
fault detection for industrial processes is a big challenge because of the faint fault signature …

Evidence updating with static and dynamical performance analyses for industrial alarm system design

X Xu, X Weng, D Xu, H Xu, Y Hu, J Li - ISA transactions, 2020 - Elsevier
Abstract In the Dempster–Shafer theory (DST) of evidence, the alarm evidence updating-
based method can effectively deal with the uncertainty of the monitored process variable so …

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 …

Optimizing Multivariate Alarm Systems: A Study on Joint False Alarm Rate, and Joint Missed Alarm Rate using Linear Programming technique

J Taheri-Kalani, G Latif-Shabgahi… - Process Safety and …, 2024 - Elsevier
In modern complex industrial systems, multiple process variables interact with one another.
The role of alarm systems in ensuring the safety of these systems is of utmost importance …

A dynamic alarm threshold setting method for photovoltaic array and its application

C Yu, H Wang, J Yao, J Zhao, Q Sun, H Zhu - Renewable Energy, 2020 - Elsevier
The setting of the alarm threshold is critical for photovoltaic (PV) fault diagnosis systems. In
practice the prior knowledge is generally used to set the alarm threshold with a fixed value …

A Study of Adaptive Threshold Based on the Reconstruction Model for Marine Systems and Their Equipment Failure Warning

X Duan, Z Gao, Z Qiao, T Du, Y Zou, P Zhang… - Journal of Marine …, 2024 - mdpi.com
To achieve the failure warning of marine systems and their equipment (MSAE), the threshold
is one of the most prominent issues that should be solved first. In this study, a fusion model …

A decision-making method for machinery abnormalities based on neural network prediction and Bayesian hypothesis testing

G Liu, S Yang, G Wang, F Li, D You - Electronics, 2021 - mdpi.com
For anomaly identification of predicted data in machinery condition monitoring, traditional
threshold methods have problems during residual testing. It is difficult to make decisions …