Title:
ELEVATOR DIAGNOSIS SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/031284
Kind Code:
A1
Abstract:
In the past, since a control signal for an elevator is required for measuring the landing position of an elevator such as a relay-type elevator from which a meaningful control signal cannot be acquired, measurement or diagnosis for the landing position cannot be performed. Thus, an elevator diagnosis system of the present invention includes: a landing door detection unit which is provided in a car door of a car and detects a landing door; an acceleration measurement unit which is provided in the car door and measures acceleration; and a moving amount measurement unit which measures, as a landing position, a moving amount of the car, which moves from a time when the landing door detection unit detects the landing door after the acceleration measurement unit detects deceleration of the car to a time when the car door opens; and an abnormality diagnosis unit which diagnoses, on the basis of the moving amount, a landing abnormality of the car, wherein, even when an elevator system from which a meaningful control signal cannot be acquired is taken as a diagnosis target, the abnormality can be detected when a landing error is extended due to deterioration over time, etc.
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Inventors:
NISHIE SATOSHI (JP)
Application Number:
PCT/JP2018/029711
Publication Date:
February 13, 2020
Filing Date:
August 08, 2018
Export Citation:
Assignee:
HITACHI BUILDING SYST CO LTD (JP)
International Classes:
B66B3/02; B66B5/02; B66B5/00
Domestic Patent References:
| WO2009150251A2 | 2009-12-17 |
Foreign References:
| JPS5882975A | 1983-05-18 | |||
| JPS63258381A | 1988-10-25 | |||
| JP2012180132A | 2012-09-20 | |||
| JPS54146364A | 1979-11-15 | |||
| JPH0692559A | 1994-04-05 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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