211 ベクトル量子化を用いた故障診断システムと空気圧電磁弁への応用

概要

論文の詳細を見る
This paper is concerned with fault diagnosis using vector quantization and its application to an electromagnetic valve. In fault diagnosis, the main difficulty is to extract the characteristics of fault pattern. In this research, vector quantization is applied to extract the characteristic vectors of fault patterns. Based on the characteristic vectors, the codebook of fault diagnosis may be constructed. By comparing sample data with the characteristic vectors in the codebook, fault diagnosis can be made. As a test, four cases of working conditions in electromagnetic valve are assumed and the codebook for fault diagnosis is applied. This codebook can accurately identify above four conditions and unknown faults. Through these results, the effectiveness of proposed fault diagnosis system is verified
2002-09-13