Title:
FAULT DIAGNOSIS METHOD AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/217364
Kind Code:
A1
Abstract:
A fault diagnosis method for a rotating motor, comprising: obtaining a time domain acceleration signal along a vibration direction of the rotating motor, as well as a rotation period of the rotating motor (210); converting the time domain acceleration signal into a time domain speed signal, using the rotation period as a step length and capturing a plurality of speed signal fragments along the time domain speed signal, arranging the plurality of speed signal fragments in order, and obtaining a speed signal matrix (220); converting the speed signal matrix into an image (230); inputting the image into a trained neural network model, and obtaining a fault diagnosis result (240). By means of converting a speed signal matrix into an image, inputting the image into a trained neural network model, and obtaining a fault diagnosis result, the present method thus transforms the problem of fault diagnosis into a problem of image recognition, which is suited for an image-oriented neural network model, improving fault diagnosis efficiency and accuracy.
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Inventors:
WANG HONGWEI (CN)
JIE MING (CN)
FAN SHUNJIE (CN)
JIE MING (CN)
FAN SHUNJIE (CN)
Application Number:
PCT/CN2020/087312
Publication Date:
November 04, 2021
Filing Date:
April 27, 2020
Export Citation:
Assignee:
SIEMENS AG (DE)
SIEMENS LTD CHINA (CN)
SIEMENS LTD CHINA (CN)
International Classes:
G01M13/00
Foreign References:
| CN110487549A | 2019-11-22 | |||
| CN106226074A | 2016-12-14 | |||
| CN108106830A | 2018-06-01 | |||
| CN109556895A | 2019-04-02 | |||
| US20110307093A1 | 2011-12-15 |
Other References:
See also references of EP 4123284A4
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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