Escalator danger monitoring and responding method, device and equipment based on vibration signal analysis

Abstract

The invention relates to an escalator danger monitoring and response method based on vibration signal analysis, which comprises the following steps: acquiring a first vibration signal to obtain a time domain range threshold and a frequency domain range threshold of the vibration of an escalator to be monitored; acquiring a second vibration signal in real time to obtain a current time domain characteristic value and a current frequency domain characteristic value of the second vibration signal; and according to the current time domain characteristic value and the time domain range threshold value, judging whether an article falls on the to-be-monitored escalator or not, and according to the current frequency domain characteristic value and the frequency domain range threshold value, judging whether a person falls down on the to-be-monitored escalator or not. According to the invention, mode identification is carried out according to typical characteristics of vibration signals when articles fall down and people fall down, and an emergency handling mechanism for dangerous situations of the escalator is comprehensively provided by combining differentiated characteristics such as vertical distance, operation time and installation position of the escalator. The invention further relates to an escalator danger monitoring and responding device and equipment based on vibration signal analysis.

Description

technical field [0001] The invention relates to the technical field of escalator application safety, in particular to an escalator risk monitoring and response method, device and equipment based on vibration signal analysis. Background technique [0002] An escalator is a stationary, electrically driven device that transports passengers upwards or downwards by sloping circular steps. As a special means of transportation that undertakes the function of transfer, escalators have the characteristics of long-term uninterrupted operation. If accidents such as falling objects or people fall occur during the operation of the escalator, the mechanical structure of the escalator may cause continuous serious injury to the person. Therefore, the study of escalator hazard monitoring and response system is of great significance to reduce the cost of manual operation and maintenance of escalators and promote industrial upgrading. [0003] As a kind of lifting equipment, the escalator us...

AI Technical Summary

Problems solved by technology

The research on escalator detection systems at home and abroad mainly focuses on the detection of mechanical operating conditions such as the differential speed of the handrail relative to the step, the reliability of the brake, etc., and cannot respond to and alarm the dangerous conditions of the escalator such as falling objects and people falling

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