FAILURE PREDICTIVE DIAGNOSTIC SYSTEM AND FAILURE PREDICTIVE DIAGNOSTIC METHOD FOR DOOR SYSTEM

WIPO Patent Application WO/2023/228723

A1

With a view to enabling failure predictive diagnosis for drive units of individual doors and for an overall door system including a management unit, a communication device, and the like, this failure predictive diagnostic system for a door system, which has a management unit for giving instructions regarding opening/closing timings to a plurality of opening/closing devices that control opening and closing of individual doors, comprises: a data input unit through which information pertaining to the opening/closing time for each of the doors is inputted; a memory unit in which information pertaining to the opening/closing time for each of the doors including past information is stored; and a failure predictive diagnostic unit which determines, through a comparison of the information pertaining to the opening/closing time with the information including the past information pertaining to the opening/closing time, that there exists failure prediction in an opening/closing device of a part of the doors in the case where the opening/closing time of the part of the doors differs from the past opening/closing time, and determines that there exists failure prediction in the management unit in the case where the opening/closing time of all the doors differ from the past opening/closing time.

KITAI SASUGA (JP)
MIYAUCHI TSUTOMU (JP)
KOIKE JUN (JP)

PCT/JP2023/017428

November 30, 2023

May 09, 2023

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HITACHI LTD (JP)

B61B1/02; B61L23/00; E05F15/632; E05F15/70

JP2021066232A	2021-04-30
JP2020100325A	2020-07-02
JP2019182252A	2019-10-24
JP2016148963A	2016-08-18
KR20210054868A	2021-05-14
CN110816553A	2020-02-21

DAI-ICHI INTERNATIONAL PATENT OFFICE, P.C. (JP)

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