Title:
ELEVATOR INSPECTION ASSISTANCE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/156962
Kind Code:
A1
Abstract:
Provided is an inspection assistance system that enables a location in an elevator at which noise is being generated to be efficiently ascertained. An inspection assistance system (1) comprises an observation unit, a tomographic image generation unit (18), a sound source direction estimation unit (19), and a superimposition unit (20). The observation unit captures images and picks up sound from an object of inspection, that is elongated in a first direction, at multiple times while moving along the object of inspection. From the images captured by the observation unit at the various times, the tomographic image generation unit (18) extracts developed slice images for azimuths centered on the first direction. The tomographic image generation unit (18) stitches together the extracted slice images to generate data for a tomographic image. The sound source direction estimation unit (19) estimates the direction of a sound source of a sound at those azimuths, centered on the first direction, corresponding to the times at which the observation part picked up sound, and generates directional estimate data. On the basis of the directional estimate data, the superimposition unit (20) generates data for a superimposed image in which a display representing sound source position has been superimposed on the tomographic image.
Inventors:
FUJITA TAKESHI (JP)
ABE MASAYA (JP)
KOIZUMI KENICHI (JP)
ABE MASAYA (JP)
KOIZUMI KENICHI (JP)
Application Number:
PCT/JP2020/004269
Publication Date:
August 12, 2021
Filing Date:
February 05, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC BUILDING TECHNO SERVICE CO LTD (JP)
MITSUBISHI ELECTRIC CORP (JP)
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
B66B5/00
Domestic Patent References:
| WO2020012608A1 | 2020-01-16 |
Foreign References:
| JP2018118813A | 2018-08-02 | |||
| JP2013060295A | 2013-04-04 | |||
| JPH09208149A | 1997-08-12 | |||
| JP2009274805A | 2009-11-26 |
Attorney, Agent or Firm:
TAKADA, Mamoru et al. (JP)
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