Probabilistic monitoring of sensors in state-space with variational Bayesian inference

S Zhao, Y Ma, B Huang - IEEE Transactions on Industrial …, 2018 - ieeexplore.ieee.org
Measurements quality is important for process systems engineering. In this paper, an
estimation scheme is proposed in the state-space form to monitor the degree of accuracy of …

Probabilistic monitoring of correlated sensors for nonlinear processes in state space

S Zhao, YS Shmaliy, CK Ahn… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
To optimize control and/or state estimation of industrial processes, information about
measurement quality provided by sensors is required. In this paper, a probabilistic scheme …

Tuning-free Bayesian estimation algorithms for faulty sensor signals in state-space

S Zhao, K Li, CK Ahn, B Huang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Sensors provide insights into the industrial processes, while misleading sensor outputs may
result in inappropriate decisions or even catastrophic accidents. In this article, the Bayesian …

Variational Bayesian State Space Model for dynamic process fault detection

Q Zhang, S Lu, L Xie, S Gu, H Su - Journal of Process Control, 2023 - Elsevier
Industrial processes are subject to various noise disturbances that lead to the stochastic
nature of the modeled system and the uncertainty of the model parameters. In this paper, a …

Variational Bayesian probabilistic modeling framework for data-driven distributed process monitoring

J Jiang, Q Jiang - Control Engineering Practice, 2021 - Elsevier
Data-driven process monitoring has gained increasing attention because of the increasing
demand in process safety and the rapid advancement of data gathering techniques. When …

Sensor fault estimation in a probabilistic framework for industrial processes and its applications

C Xu, S Zhao, Y Ma, B Huang, F Liu… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this article, a new sensor fault estimation algorithm is proposed for industrial processes
described by linear discrete-time systems, where the fault dynamics are modeled as a …

Prediction of Condition Monitoring Signals Using Scalable Pairwise Gaussian Processes and Bayesian Model Averaging

J Sun, S Zhou, D Veeramani… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Predicting condition monitoring signals has become a critical task for health status
assessment and monitoring of industrial systems. It is crucial to incorporate correlated …

Robust filter design for asymmetric measurement noise using variational Bayesian inference

C Xu, S Zhao, Y Ma, B Huang… - IET Control Theory & …, 2019 - Wiley Online Library
To obtain an effective state estimator for industrial processes, estimator needs to be
designed to match the characteristics of noise. In this study, a new filter is proposed focusing …

Centralized and distributed robust state estimation over sensor networks using elliptical distribution

G Wang, C Yang, L Ma, W Dai - IEEE Internet of Things Journal, 2022 - ieeexplore.ieee.org
We consider the robust state estimation over sensor networks with non-Gaussian noise,
which is often encountered in many applications. Motivated by the fact that the elliptical …

Online probabilistic estimation of sensor faulty signal in industrial processes and its applications

S Zhao, B Huang, C Zhao - IEEE Transactions on Industrial …, 2020 - ieeexplore.ieee.org
In this article, an online estimator for faulty sensor signal is proposed for industrial processes
described by nonlinear state-space models. The potential sensor fault is modeled as an …