Elevator rope sway detection device
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United States of America Patent
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May 3, 2016
Grant Date -
Jan 2, 2014
app pub date -
Dec 21, 2011
filing date -
Feb 28, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An elevator rope sway detection method and a detection device using the same capable of detecting an elevator rope sway, generated by a building shake caused by an earthquake or strong wind, with high accuracy by preventing incorrect detections in detecting the elevator rope sway. A rope detector including a rope sway detector sends detection information detected by the rope detector to a rope determiner. A rope sway determination mechanism includes a detection signal memorization unit, a detection signal calculation unit, and a rope sway determination unit to determine that a rope sway occurs if the detection information sent from the rope detector fulfills a predetermined condition. A result determined by the rope sway determination unit is sent to an elevator controller, which performs an operation corresponding to the determined result.
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