Title:
ABNORMAL SOUND DIAGNOSIS DEVICE, ABNORMAL SOUND DIAGNOSIS SYSTEM, ABNORMAL SOUND DIAGNOSIS METHOD, AND ABNORMAL SOUND DIAGNOSIS PROGRAM
Document Type and Number:
WIPO Patent Application WO/2016/125256
Kind Code:
A1
Abstract:
An abnormal sound diagnosis device is provided with: a trajectory feature extraction unit (5) for extracting a trajectory vector (15) by converting, into a vector, a trajectory that indicates an intensity feature of an intensity time series (14) in an entire time direction obtained by an intensity time series obtaining unit (4); a discrimination parameter storage unit (6) for storing a discrimination parameter (16) learned with the vector which is the trajectory indicating the intensity feature in the entire time direction of the intensity time series of sound data generated from a reference device as an input and with information indicating a status type of a diagnosis target device as an output; a discrimination unit (7) for obtaining a K-dimensional score vector (17) with respect to each status type of the diagnosis target device from the trajectory vector (15) and the discrimination parameter (16); and a determination unit (8) for determining, by referring to the K-dimensional score vector (17), whether sound generated in the diagnosis target device is normal or abnormal and determining the kind of the abnormality.
Inventors:
ABE YOSHIHARU (JP)
FUKUNAGA HIROSHI (JP)
FUKUNAGA HIROSHI (JP)
Application Number:
PCT/JP2015/052991
Publication Date:
August 11, 2016
Filing Date:
February 03, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
International Classes:
G05B23/02
Foreign References:
| JP2012166935A | 2012-09-06 | |||
| JP2013200143A | 2013-10-03 | |||
| JP2014105075A | 2014-06-09 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
Hideaki Tazawa (JP)
Hideaki Tazawa (JP)
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