Method and device for determining an operating state of an elevator system
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United States of America Patent
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Mar 14, 2023
Grant Date -
Aug 2, 2018
app pub date -
Jul 13, 2016
filing date -
Jul 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A method and a device for determining an operating state of an elevator system include determining a current/time profile of a current supplied to the elevator system via a power supply line, identifying at least one current profile segment of the current/time profile, and deriving a current profile pattern of the identified current profile segment. The operating state of the elevator system is determined based on comparing the current profile pattern to at least one reference pattern. The method and the device may also be easily used by personnel without electrical training and may be used in elevator systems that are not known in detail.
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