Escalator fault monitoring method

Abstract

The invention discloses an escalator fault monitoring method. The method comprises the steps of acquiring data, specifically, distinguishing working conditions according to the electric current and the rotating speed of an elevator during operation of an escalator, acquiring vibration signals of a main driving bearing and a tensioning frame bearing according to the working conditions; judging thedata, specifically, judging the validity of the signals by utilizing a quotient function; removing the data, specifically, removing interference components in the signals by carrying out noise elimination by utilizing a self-adaptive threshold value so as to acquire effective signals; calculating the characteristic indexes of the data, specifically, calculating the characteristic indexes of a meansquare root RMS, a variance Var and a peak-to-peak value Xpp by utilizing the effective signal data; and carrying out state evaluation, specifically, establishing a characteristic vector X formed bythe characteristic indexes, substituting the characteristic vector X into a logarithm linear regression model, and calculating the probability that the main driving bearing and the tensioning frame bearing belong are normal. According to the escalator fault monitoring method, the escalator can be monitored in real time, the state of the escalator can be evaluated, early warning, maintenance and adjustment can be carried out in time according to the state of the escalator, and faults of the escalator are avoided.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an escalator fault monitoring method. Background technique [0002] In the prior art, escalators are widely used in public places such as shopping malls, airports, stations, pedestrian bridges, and rail transit stations, bringing great convenience to people's lives. [0003] At the same time, due to wear and tear, escalators will break down, and safety accidents caused by escalator failures are not uncommon. [0004] After investigation, it was found that the faults of the escalator were mainly concentrated in the main drive bearing and the tension frame bearing of the escalator. [0005] Conventionally, maintenance is carried out by regular injection of lubricating oil. [0006] However, the existing methods cannot monitor the escalator in real time, accurately predict and judge the status of the escalator, and cannot prevent the occurrence of escalator failure. Contents of the inve...

AI Technical Summary

Problems solved by technology

[0006] However, the existing methods cannot monitor the escalator in real time, cannot accurately predict and judge the status of the escalator, and cannot prevent the occurrence of escalator failures

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