Title:
NOISE MONITORING DEVICE AND NOISE MONITORING METHOD
Document Type and Number:
WIPO Patent Application WO/2012/127850
Kind Code:
A1
Abstract:
Provided is a technique capable of coping with identifying on-the-ground noise generated from an airplane or the like even under a complicated noise environment such as around an airport.
A microphone unit (10) is placed within an airport, and window areas (Wa to Wc) are individually specified for each of noise generation source areas such as, for example, an aircraft parking area (20), a taxing runway (30), and an engine test run area (60). By using the microphone unit (10) to perform a sound identification by a three x/y/z-axis correlation method, direction-of-arrival vectors of the on-the-ground noise can also be calculated. If the window areas (Wa to Wc) are specified from the positional relationship between a monitoring point (P) and an area where noise is actually generated, it is possible to identify from the proportions of the direction-of-arrival vectors which of the window areas (Wa to Wc) generates the on-the-ground noise.
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Inventors:
OKAZAKI MICHINARI (JP)
MOTOYOSHI JUNICHI (JP)
SAKODA KEISHI (JP)
SHINOHARA KENJI (JP)
TAZAKI MASARU (JP)
MOTOYOSHI JUNICHI (JP)
SAKODA KEISHI (JP)
SHINOHARA KENJI (JP)
TAZAKI MASARU (JP)
Application Number:
PCT/JP2012/001897
Publication Date:
September 27, 2012
Filing Date:
March 19, 2012
Export Citation:
Assignee:
RION CO (JP)
OKAZAKI MICHINARI (JP)
MOTOYOSHI JUNICHI (JP)
SAKODA KEISHI (JP)
SHINOHARA KENJI (JP)
TAZAKI MASARU (JP)
OKAZAKI MICHINARI (JP)
MOTOYOSHI JUNICHI (JP)
SAKODA KEISHI (JP)
SHINOHARA KENJI (JP)
TAZAKI MASARU (JP)
International Classes:
G01H3/00
Domestic Patent References:
| WO2004021031A1 | 2004-03-11 | |||
| WO2002029432A1 | 2002-04-11 |
Foreign References:
| JP2006038772A | 2006-02-09 | |||
| JPH09105667A | 1997-04-22 | |||
| JPH0743203A | 1995-02-14 | |||
| JPH0743203A | 1995-02-14 |
Other References:
KEISHI SAKODA ET AL.: "Measurement using environmental sound monitor", PROCEEDINGS OF THE MEETING THE INSTITUTE OF NOISE CONTROL ENGINEERING OF JAPAN, vol. 2010, 28 September 2010 (2010-09-28), SHUKI, pages 107 - 110
KENJI FUKUSHIMA: "Aircraft Noise Identification", JOURNAL OF THE GAS TURBINE SOCIETY OF JAPAN, vol. 33, no. 6, 20 November 2005 (2005-11-20), pages 604 - 605
See also references of EP 2687831A4
KENJI FUKUSHIMA: "Aircraft Noise Identification", JOURNAL OF THE GAS TURBINE SOCIETY OF JAPAN, vol. 33, no. 6, 20 November 2005 (2005-11-20), pages 604 - 605
See also references of EP 2687831A4
Attorney, Agent or Firm:
YAMASAKI, TAKAHIRO (JP)
Takahiro Yamazaki (JP)
Takahiro Yamazaki (JP)
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Claims: