Vibration detection method and system for setting frequency band, elevator detection method and elevator fault identification method

Abstract

The invention discloses a vibration detection method and a system for a setting frequency band, an elevator detection method and an elevator fault identification method. The detection method comprisesthe following steps of: S1, performing average filtering with a cut-off frequency of n on a waveform so as to obtain a first curve; S2, performing average filtering with a cut-off frequency of m on the waveform so as to obtain a second curve, wherein n is greater than m; S3, performing absolute difference calculation on each corresponding point of the first curve and the second curve so as to obtain a third curve; and S4, detecting the wave crest of the third curve, and if the wave crest exceeds a setting threshold value, judging that the vibration between n and m frequency occurs at this position. The vibration detection method and system for the setting frequency band, the elevator detection method and the elevator fault identification method provided by the invention can reduce the amount of calculation, quickly detect whether the vibration is in a certain frequency range, and are suitable for vibration detection of bottom chips.

Description

technical field [0001] The invention belongs to the technical field of elevator detection and relates to a vibration detection method, in particular to a vibration detection method and system in a set frequency band, an elevator detection method and an elevator fault identification method. Background technique [0002] Elevator is the most commonly used vertical transportation vehicle in modern high-rise buildings. It saves people's time and physical strength and provides convenience for daily life. As a special equipment that is closely related to the safety of public life, the safe operation of elevators has attracted more and more attention from the society. However, due to the complex structure of the elevator, it is an urgent need for elevator management, maintenance and safe operation to ensure the safe and reliable operation of the elevator and to detect its operating status and fault conditions. [0003] There is no systematic identification method for some abnormal...

AI Technical Summary

Problems solved by technology

However, due to the complex structure of the elevator, it is an urgent need for elevator management, maintenance and safe operation to ensure the safe and reliable operation of the elevator and to detect its operating status and fault conditions.

[0003] There is currently no systematic identification method for some abnormalities of elevators; in the case of abnormalities in elevators, elevator manufacturers cannot obtain data on the causes of abnormalities in elevators, and usually can only notify the property management or elevator maintenance department through the owner’s report for repairs

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