Imperial smelting furnace fault diagnosis based on rough set and least squares support vector machine

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (10): 221-223.

• 工程与应用 • Previous Articles Next Articles

Imperial smelting furnace fault diagnosis based on rough set and least squares support vector machine

DAI Xian-jiang,GUI Wei-hua,JIANG Shao-hua

Department of Information Science & Engineering，Center South University，Changsha 410083，China

Received:2007-09-28 Revised:2007-12-11 Online:2008-04-01 Published:2008-04-01
Contact: DAI Xian-jiang

基于RS与LS_SVM的密闭鼓风炉故障诊断

戴贤江,桂卫华,蒋少华

中南大学信息科学与工程学院控制科学与工程系，长沙 410083

通讯作者: 戴贤江

Abstract

Abstract: Due to the incompleteness and complexity of fault diagnosis for imperial smelting furnace，a method based on Rough Set（RS） and Least Squares Support Vector Machine（LS_SVM） is proposed to identify the fault of imperial smelting furnace.Firstly，the discretization for the continuous attributes data in diagnostic decision system uses equal frequency scale.Then，diagnostic decision-making is reduced based on rough sets theory，the noise and redundancy in the sample are removed and the key conditions for diagnosis are determined.The model for fault diagnosis is established by combining the reduction results and LS_SVM.The experiment system implemented by this method shows a good diagnostic ability.

Key words: Rough Set（RS）, Least Squares Support Vector Machine（LS_SVM）, fault diagnosis, imperial smelting furnace

摘要： 针对密闭鼓风炉故障信息的复杂性和不完备性，建立了基于粗糙集（RS）和最小二乘支持向量机（LS_SVM）相结合的故障诊断模型。首先运用等频率划分法对故障诊断数据中的连续属性进行离散化，然后采用粗糙集理论进行故障诊断决策系统约简，获得最优决策系统。将约简结果与LS_SVM相结合，建立了故障诊断模型。实验结果表明，该模型提高了诊断效率和判断准确率。

关键词: 粗糙集（RS）, 最小二乘支持向量机（LS_SVM）, 故障诊断, 密闭鼓风炉

DAI Xian-jiang,GUI Wei-hua,JIANG Shao-hua. Imperial smelting furnace fault diagnosis based on rough set and least squares support vector machine[J]. Computer Engineering and Applications, 2008, 44(10): 221-223.

戴贤江,桂卫华,蒋少华. 基于RS与LS_SVM的密闭鼓风炉故障诊断[J]. 计算机工程与应用, 2008, 44(10): 221-223.

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Imperial smelting furnace fault diagnosis based on rough set and least squares support vector machine

基于RS与LS_SVM的密闭鼓风炉故障诊断

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