Title:
WATER LEAKAGE DETERMINATION DEVICE AND WATER LEAKAGE DETERMINATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/199455
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a water leakage determination device and water leakage determination method for more efficiently and accurately detecting water leakage. A water leakage determination device according to an embodiment is provided with a reception unit for receiving sound wave data, an extraction unit for extracting data for a regular section having little noise from the sound wave data, a specification unit for specifying a threshold, and a determination unit for determining a ratio of the inclusion of a signal exhibiting a water leakage characteristic from the regular section data and determining whether there is water leakage by comparing the ratio with the threshold.
Inventors:
HIRUMA TAKAHIRO
NISHIMURA OSAMU
ENAMITO AKIHIKO
SATO YOSHIYUKI
NISHIMURA OSAMU
ENAMITO AKIHIKO
SATO YOSHIYUKI
Application Number:
PCT/JP2016/084359
Publication Date:
November 23, 2017
Filing Date:
November 18, 2016
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
G01M3/24
Foreign References:
| JPH0522171B2 | 1993-03-26 | |||
| JPH1078371A | 1998-03-24 | |||
| JPH0943087A | 1997-02-14 | |||
| JP5769039B2 | 2015-08-26 | |||
| JP5318161B2 | 2013-10-16 | |||
| JP3535329B2 | 2004-06-07 |
Attorney, Agent or Firm:
INOUE, Masanori (JP)
Download PDF: