Title:
VIBRATION SIGNAL FEATURE EXTRACTION METHOD, AND DEVICE ANALYSIS METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/093315
Kind Code:
A1
Abstract:
A vibration signal feature extraction method, and a device analysis method and apparatus. The method comprises: processing a vibration signal to obtain a derivative signal from the vibration signal (S420), the derivative signal being used for characterizing one or more characteristics of the vibration signal; respectively performing feature extraction on the vibration signal and the derivative signal to obtain a first feature extraction result of the vibration signal and a second feature extraction result of the derivative signal (S430); and taking the first feature extraction result and the second feature extraction result as final feature extraction results of the vibration signal. The finally obtained feature extraction results may be used to analyze the vibration signal from different angles, thereby improving the universality of the feature extraction results.
Inventors:
CHEN XI (CN)
LUO WEI (CN)
WANG MING (CN)
WANG JIN (CN)
LUO WEI (CN)
WANG MING (CN)
WANG JIN (CN)
Application Number:
PCT/CN2022/124104
Publication Date:
June 01, 2023
Filing Date:
October 09, 2022
Export Citation:
Assignee:
ALIBABA CHINA CO LTD (CN)
International Classes:
G01M13/045; G01M13/021; G01M13/028
Foreign References:
| CN114235405A | 2022-03-25 | |||
| CN110160791A | 2019-08-23 | |||
| CN102721545A | 2012-10-10 | |||
| CN113654798A | 2021-11-16 | |||
| CN108414226A | 2018-08-17 | |||
| US9983776B1 | 2018-05-29 |
Attorney, Agent or Firm:
GUANGZHOU ZHUZHI INTELLECTUAL PROPERTY LIMITED (CN)
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