Search International and National Patent Collections

1. (WO2018003014) ELEVATOR SYSTEM

Pub. No.:    WO/2018/003014    International Application No.:    PCT/JP2016/069128
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Wed Jun 29 01:59:59 CEST 2016
IPC: B66B 1/20
B66B 5/02
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: HIRABAYASHI, Kazufumi
平林 一文
Title: ELEVATOR SYSTEM
Abstract:
This elevator system has a plurality of elevators, a group management device that allots elevators for calls, and a service life estimation unit. The service life estimation unit estimates changes in the temperature of at least one inverter being monitored from among inverters, and estimates the remaining service life of the inverter being monitored on the basis of the estimated changes in temperature. The group management device compares a remaining service life estimated value obtained from the service life estimation unit with a remaining service life threshold value. If there is detected a service-life-approaching inverter that is an inverter for which the remaining service life estimated value is less than the remaining service life threshold value, the group management device suppresses the allotment of designated elevator cars, which are elevator cars corresponding to the service-life-approaching inverter, said allotment being suppressed to a greater extent than before the detection of the service-life-approaching inverter.