Time Series Extended Finite‐State Machine‐Based Relevance Vector Machine Multi‐Fault Prediction

Zhou, Zongtan; Zhu, Qunxiong; Xu, Yuan

doi:10.1002/ceat.201600025

Cited by 9 publications

(7 citation statements)

References 27 publications

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“…Multifault prediction for industrial processes using finite state machines is studied in [17]. It is observed that state machines in conjunction with relevance vector machine (RVM) give better prediction accuracy.…”

Section: Modelling Problems Using a Finite State Machinementioning

confidence: 99%

Data Driven Modelling of Nuclear Power Plant Performance Data as Finite State Machines

et al. 2021

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Accurate modelling and simulation of a nuclear power plant are important factors in the strategic planning and maintenance of the plant. Several nonlinearities and multivariable couplings are associated with real-world plants. Therefore, it is quite challenging to model such cyberphysical systems using conventional mathematical equations. A visual analytics approach which addresses these limitations and models both short term as well as long term behaviour of the system is introduced. Principal Component Analysis (PCA) followed by Linear Discriminant Analysis (LDA) is used to extract features from the data, k-means clustering is applied to label the data instances. Finite state machine representation formulated from the clustered data is then used to model the behaviour of cyberphysical systems using system states and state transitions. In this paper, the indicated methodology is deployed over time-series data collected from a nuclear power plant for nine years. It is observed that this approach of combining the machine learning principles with the finite state machine capabilities facilitates feature exploration, visual analysis, pattern discovery, and effective modelling of nuclear power plant data. In addition, finite state machine representation supports identification of normal and abnormal operation of the plant, thereby suggesting that the given approach captures the anomalous behaviour of the plant.

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Section: Modelling Problems Using a Finite State Machinementioning

confidence: 99%

Data Driven Modelling of Nuclear Power Plant Performance Data as Finite State Machines

et al. 2021

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“…The literature [12] deeply analyzed the causes of failures and analyzed the relationship between the causes of failures and environmental attributes, then evaluated the impact of failure prediction on overall performance prediction, finally, established a failure prediction model. According to the literature [13][14][15][16][17][18][19], these methods do not need a thorough examination of the mechanism of equipment fault and fall within the black box concept. When the number of samples is insufficient, it is difficult to establish an accurate fault prediction model.…”

Section: Introductionmentioning

confidence: 99%

Fault Critical Point Prediction Method of Nuclear Gate Valve with Small Samples Based on Characteristic Analysis of Operation

Liu

et al. 2022

Materials

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The number of fault samples for the new nuclear valve is commonly rare; thus, the machine learning algorithm is not suitable for the fault prediction of this kind of equipment. In order to overcome this difficulty, this paper proposes a novel method for the fault critical point prediction of the gate valve based on the characteristic analysis of the operation process variables. The operation process of gate valve switch often contains various fault characteristics and information, and this method first adopts the Shannon entropy to describe the power spectrum of vibration signal relevant to the operation process of gate valve switch, and then employs the mean value of the power spectrum entropy as an indirect process variable and further investigates the differences between the indirect process variable under the healthy state and the fault state with a different fault degree. In addition, the power signal of the gate valve is also employed as the direct process variable and the features of the direct process variable under the healthy state and the fault state with different fault degrees are also investigated. Based on the previous indirect process variable and direct process variable, the prediction approach for the critical point of the gate valve fault is established by analyzing the change in the indirect process variable and direct process variable before and after faults. Finally, the data of a nuclear gate valve experiment are employed to demonstrate the feasibility of the proposed method and the results show that the proposed method can effectively predict the fault critical point of the mentioned nuclear gate valve. If the diagnostic threshold is set properly, the critical point prediction of a nuclear gate valve fault can be realized as 100% or close to 100%. Furthermore, the proposed method can be directly applied to the nuclear gate valve in a nuclear power plant to improve the operation reliability of the valve. At the same time, the method can be applied to the fault diagnosis and prediction of valves in other fields, such as the chemical industry.

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“…Similarly, Lakehal and Tachi [6] offered a Bayesian network for fault prediction of power transformers. Zhou et al [7] suggested a multi-fault prediction method based on time series extended finite-state machine. To reduce the errors caused by task scheduling, Ji and Wang [8] designed a fault prediction method for workshop scheduling by big large data analysis.…”

Section: Introductionmentioning

confidence: 99%

“…The observational data of the system state is analyzed. Combined with the system identification and optimization theory, the fault prediction model is established, such as Bayesian [5], [6], neural network [11], particle filter [9], time series [7], and deep learning [12]. The methods do not need to understand the internal mechanisms of the system before modeling, and the accuracy of the model is improved by training samples.…”

Section: Introductionmentioning

confidence: 99%

Fault Prediction Method for Wireless Sensor Network Based on Evidential Reasoning and Belief-Rule-Base

Chen

Zhou

et al. 2019

IEEE Access

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Wireless sensor network (WSN) is a distributed intelligent network, which can independently achieve the information collection task of monitoring targets. However, the WSN is susceptible to faults due to various factors, such as sensor resources, network bandwidth, and work environment. The WSN fault prediction technology can estimate the fault trend of the WSN, which can provide the basis for the formulation and implementation of emergency strategies. In this paper, a new WSN fault prediction method is proposed based on evidential reasoning (ER) and belief rule base (BRB). First, the process of the WSN fault prediction is described, which mainly includes the fault assessment of the current WSN and the fault prediction of future WSN. Second, the WSN fault prediction model is constructed, including the ER-based fault assessment model and BRB-based fault prediction model. The projection covariance matrix adaptation evolutionary strategies (P-CMA-ESs) are used to optimize model parameters. Finally, a case study is constructed to verify the validity of the WSN fault prediction model. The experimental results show that the model can adequately estimate the fault state of the current WSN and then predict the fault status of future WSN. INDEX TERMS Fault prediction, belief rule base (BRB), fault assessment, evidential reasoning (ER) wireless sensor network (WSN).

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Time Series Extended Finite‐State Machine‐Based Relevance Vector Machine Multi‐Fault Prediction

Cited by 9 publications

References 27 publications

Data Driven Modelling of Nuclear Power Plant Performance Data as Finite State Machines

Data Driven Modelling of Nuclear Power Plant Performance Data as Finite State Machines

Fault Critical Point Prediction Method of Nuclear Gate Valve with Small Samples Based on Characteristic Analysis of Operation

Fault Prediction Method for Wireless Sensor Network Based on Evidential Reasoning and Belief-Rule-Base

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