Title:
ABNORMALITY DIAGNOSIS SYSTEM FOR ELEVATOR
Document Type and Number:
WIPO Patent Application WO/2024/042631
Kind Code:
A1
Abstract:
Provided is an abnormality diagnosis system for detecting abnormal noise or abnormal vibration of an elevator, the abnormality diagnosis system comprising a microphone that collects sound inside a car, an operation control unit that causes the car to move in accordance with a diagnosis pattern when specific diagnosis conditions are met, and an abnormality detection unit that detects an irregularity of the elevator while the car is moving in accordance with the diagnosis pattern. The diagnosis conditions include a diagnosis time period during which the diagnosis is performed. The abnormality diagnosis system also comprises a condition changing unit that measures background noise using the microphone in each of a plurality of diagnosis time periods and changes the diagnosis time period in the diagnosis conditions on the basis of the measured background noise, if the abnormality detection unit detects an irregularity but the elevator is normal.
Inventors:
SAWADA TAKAMITSU (JP)
YAMASAKI SATOSHI (JP)
OMORI YOTA (JP)
HASEGAWA TAIRA (JP)
YAMASAKI SATOSHI (JP)
OMORI YOTA (JP)
HASEGAWA TAIRA (JP)
Application Number:
PCT/JP2022/031839
Publication Date:
February 29, 2024
Filing Date:
August 24, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC BUILDING SOLUTIONS CORP (JP)
International Classes:
B66B5/00
Domestic Patent References:
| WO2018061081A1 | 2018-04-05 |
Foreign References:
| JP2015035118A | 2015-02-19 | |||
| JP2009070071A | 2009-04-02 | |||
| JP2019119170A | 2019-07-22 | |||
| JP2013060295A | 2013-04-04 | |||
| JP2010189100A | 2010-09-02 | |||
| JP2009126686A | 2009-06-11 |
Attorney, Agent or Firm:
TAKADA, TAKAHASHI & PARTNERS (JP)
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