Title:
故障予兆診断装置およびその方法
Document Type and Number:
Japanese Patent JP7229861
Kind Code:
B2
Abstract:
Sensor combinations that are effective for failure sign diagnosis are automatically generated in consideration of hidden relationships between sensor data. The present invention includes: a time shift data generation unit 106 that processes sensor data acquired from an instrument and generates the processed sensor data; and a sensor combinations/pre-processing condition generation unit 112 that generates sensor combinations on the basis of correlation coefficients between the sensor data and the processed sensor data, and generates, as a preprocessing condition, a processing condition that increases a correlation coefficient between sensors for each sensor combination, in which the failure sign diagnosis of the instrument is performed on the basis of a change in the relationship between the sensor data included in the sensor combination and the processed sensor data.
Inventors:
Junsuke Fujiwara
Suzuki Hideaki
Toshiaki Kono
Toshiyuki Odaka
Suzuki Hideaki
Toshiaki Kono
Toshiyuki Odaka
Application Number:
JP2019114195A
Publication Date:
February 28, 2023
Filing Date:
June 20, 2019
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G05B23/02
Domestic Patent References:
| JP2017010263A | ||||
| JP2004078812A | ||||
| JP2014186631A | ||||
| JP2009146086A | ||||
| JP2003208219A | ||||
| JP2009199533A | ||||
| JP2000505221A |
Attorney, Agent or Firm:
Polar Patent Attorney Corporation