Escalator overspeed and non-manipulation reversion fast detecting instrument and detecting method thereof

Abstract

The invention discloses an escalator overspeed and non-manipulated reverse rapid detection instrument, which includes an analog signal generator, a monitoring device, and a signal analyzer. The output end of the signal analyzer is connected to the analog signal generator, including the following steps: 1) Use a signal analyzer to analyze and save the signals of the speed detection sensor and the reverse sensor of the escalator respectively; 2) detect the speed of the escalator motor and the speed detection sensor to obtain a linear change constant; 3) replace the original signal with a virtual signal, and Change the virtual signal to the corresponding waveform of overspeed or reverse, and verify the overspeed and non-manipulated reverse protection function of the escalator. The escalator overspeed and non-manipulated reverse rapid detection instrument has a high degree of intelligence, a simple modular design structure, stable and reliable performance, high measurement accuracy, and more convenient and fast operation. Manipulation reversal fast detection.

Description

technical field [0001] The invention relates to a fast detection instrument for overspeed and non-manipulated reversal of an escalator and a detection method thereof. Background technique [0002] With the continuous improvement of urban construction, escalators have become an indispensable means of transportation for modern urban shopping malls. At the same time, escalator reversal accidents occurred in Tokyo, Shenzhen, and Beijing subways in Japan and the resulting serious casualties caused the whole society to pay attention to the safety of elevator operation, especially the high attention to the safety of escalator operation in public places. The escalator has no overload protection device, and the probability of reversal of the full-load upward working condition is high, which is likely to cause falling, rolling, extrusion, and stampede events, which are the most harmful types of escalator accidents. The protective safety device of the escalator to prevent overspeed, u...

AI Technical Summary

Problems solved by technology

[0003] At present, my country's elevator companies and inspection and testing institutions mainly use qualitative analysis for the overspeed and reverse detection of escalators. By removing the overspeed and reverse signals, it is verified whether the function is effective. A few use the external frequency converter method developed by Zhuhai Special Inspection Institute. Although this method can be quantitative Analyze the overspeed and reverse situations, but the on-site operation is complicated, and the escalator will be damaged in the overspeed or reverse state

Images