Comparison of Multiple Data Handling Methods Under Online Parameter Estimation
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概要
- 論文の詳細を見る
In the field of plant maintenance, data that are gathered by sensors on multiple machines are handled and analyzed. Online or pseudo online data handling is required on such fields. When the data occurrence speed exceeds the data handling speed, multiple data should be handled at a time (batch data handling or pseudo online data handling). If l amount of data are received at one time following N amount of data, how to estimate the new parameters effectively is a great concern. A new simplified calculation method, which calculates the N data's weights, is introduced. Numerical examples show that this new method has a fairly good estimation accuracy and the calculation time is less than 1/12 to 1/9 compared with the case when the whole data are re-calculated. Even under the restriction calculation ability in the apparatus is limited, this proposed method makes the failure detection of equipments possible in early stages with a few new coming data. This method would be applicable in many data handling fields.
- 大阪府立大学の論文
- 2006-03-31
著者
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Takeyasu Kazuhiro
Osaka Prefecture Univ. Jpn
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Ishii Yasuo
Hankyu Corp. Jpn
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Takeyasu Kazuhiro
Professor of College of Economics, Osaka Prefecture University
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Ishii Yasuo
General Manager of Compliance Dept., Hankyu Corporation
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Takeyasu Kazuhiro
Professor Of College Of Economics Osaka Prefecture University
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