DEVICE, METHOD, PROGRAM, AND SYSTEM FOR DETECTING UNIDENTIFIED WATER

WIPO Patent Application WO/2020/090991

A1

Provided is a technology for realizing detection of unidentified water without using a flowmeter. One embodiment of the present invention pertains to an unidentified water detection device having: a feature quantity extraction unit which extracts, from acoustic data including running water sound, an acoustic feature quantity pattern that indicates temporal changes in an acoustic feature quantity; and an unidentified water prediction unit which, using a machine learning model learned from the acoustic feature quantity pattern extracted from data that contains acoustic data including running water sound during lack of rainfall and/or acoustic data of running water sound under a condition different from during lack of rainfall, predicts the presence/absence of unidentified water from the acoustic feature quantity pattern of acoustic data of a prediction object, wherein the acoustic feature quantity pattern indicates temporal changes in the acoustic feature quantity in terms of time period and day of the week.

YE JIAXING (JP)
YOSHIDA KEN (JP)

PCT/JP2019/042856

May 07, 2020

October 31, 2019

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CTI ENG CO LTD (JP)

G06N20/00; E03F1/00

JP2007531868A	2007-11-08
JPS6134461A	1986-02-18
JP2014182092A	2014-09-29
JPH08101710A	1996-04-16
JP2011080347A	2011-04-21
JP2018207773A	2018-12-27

ANONYMOUS: "Needs survey attached proposal theme concerning themes such as breakthrough by dynamic approached in sewage high technology project in 2019", 31 May 2018 (2018-05-31), pages 1 - 3, XP009524097, Retrieved from the Internet [retrieved on 20190700]
See also references of EP 3767556A4

ITOH, Tadashige et al. (JP)

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