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Patent Searching and Data


Title:
LEAK-DETECTION DEVICE, PROGRAMME, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2014/050511
Kind Code:
A1
Abstract:
 A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.

Inventors:
SHINODA SHIGEKI (JP)
YOSHINARI TETSUYA (JP)
KINOSHITA SHOHEI (JP)
YAMAMOTO HIROMI (JP)
TAKAHASHI MASATAKE (JP)
SASAKI YASUHIRO (JP)
Application Number:
PCT/JP2013/074123
Publication Date:
April 03, 2014
Filing Date:
September 06, 2013
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
G01M3/24
Foreign References:
JPS6255540A1987-03-11
JP2002122502A2002-04-26
JP3156865U2010-01-21
JPH11271168A1999-10-05
JP2004245618A2004-09-02
Other References:
See also references of EP 2902768A4
Attorney, Agent or Firm:
HAYAMI SHINJI (JP)
Shinji Hayami (JP)
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