Parameter Calculation in Time Analysis for the Approach of Filtering to Select IMFs of EMD in AE Sensors for Leakage Signature

被引:1
作者
Jaafar, Nur Syakirah Mohd [1 ]
Aziz, Izzatdin Abdul [1 ]
Hasan, M. Hilmi B. [1 ]
Mahmood, Ahmad Kamil [1 ]
机构
[1] Univ Teknol PETRONAS, Ctr Res Data Sci, Seri Iskandar, Malaysia
来源
ARTIFICIAL INTELLIGENCE METHODS IN INTELLIGENT ALGORITHMS | 2019年 / 985卷
关键词
Signal processing method; mpirical Mode Decomposition; Intrinsic Mode Functions; Selected IMFs; Time domain analysis; Standard deviation; Variance;
D O I
10.1007/978-3-030-19810-7_14
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
The pipelines are used for transporting fluids and it is an important part of the media transportation for oil and gas. However, as pipelines are often spread across vast distances and carry certain hazardous substances, the chances for accidents such as leakage accidents in oil and gas pipelines are increased. Variety of factors lead to pipeline leakage accidents such as corrosion, vibration and other impacts affecting the safe operation of pipelines. Pipelines leakages cause both loss of product and as well as environmental damage. Acoustic emissions sensors have recently emerged as a promising tool for long distance pipeline monitoring due to the acoustic emission sensors advantages of high accuracy and low loss per distance. The signal processing is used to decompose the raw signal and the pre-processed signal will be analyzed in the time-frequency domain. Several existing signals processing methods such as Fourier Transform, Wavelet Transform can be used for extracting useful information. The parameters of Empirical Mode Decomposition [EMD] show promising results. The promising results in terms of accuracy of selections IMFs and analysis of time-frequency domain. The selected of Intrinsic Mode Functions [IMFs] IMFs are analyzed in the time domain by using two parameters which are standard deviation and variance. The selected IMFs are obtained to reveal the leakage and no leakage signatures of the pipeline.
引用
收藏
页码:139 / 146
页数:8
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