Vibration abnormality detection device and elevator control system

摘要

PROBLEM TO BE SOLVED: To provide a vibration abnormality detection device capable of accurately detecting an abnormal state in which a passenger behaves violently, from vibration in an elevator, and provide an elevator control system.SOLUTION: A vibration abnormality detection device (12) comprises a vibration detection part (2) and a calculation processing part (20). The vibration detection part detects vibration of an elevator car (10) in a prescribed direction and generates a detection signal (Az). The calculation processing part performs prescribed calculation processing based on a detection signal. The calculation processing part extracts, from the detection signal, a low frequency component (Aza) in which a frequency component higher than a prescribed first cut-off frequency (f1) is blocked, and a high frequency component (Azb) in which a frequency component lower than a second cut-off frequency (f2) which is equal to or more than the first cut-off frequency is blocked, respectively. The calculation processing part detects an abnormal state of an elevator (1) based on at least any one of the extracted low frequency component and high frequency component.SELECTED DRAWING: Figure 9