Escalator fault online early warning system and fault diagnosis method

Abstract

The invention belongs to the technology of escalator health condition management, and particularly relates to an escalator fault early warning system and a fault diagnosis method which can achieve real-time online monitoring based on vibration and temperature detection. The system comprises an acceleration sensor, a temperature sensor, a collector, an upper computer and a connecting cable. The collector is connected with the sensors and the upper computer through cables. The collector is used for processing vibration and signals input by the temperature sensor, whether the vibration and the signals are abnormal or not is judged, and if abnormality exists, alarm information and fault data are sent to the upper computer. According to the escalator fault early warning system and the fault diagnosis method, a feature vector formed by a plurality of time domain parameters and having the weight ratio is comprehensively applied to improve the comprehensiveness and accuracy rate of the vibration fault diagnosis. On an intelligent judgment algorithm, whether vibration is abnormal or not is judged according to the information difference obtained in a system training mode and a system work mode. Temperature monitoring is more reasonable and accurate through eliminating of the influence of the environment temperature on a detected object. The above diagnosis method is reliable, effective and good in application effect.

Description

technical field [0001] The invention belongs to the technical field of escalator health status management, and in particular relates to an escalator fault early warning system and a fault diagnosis method based on vibration and temperature detection that can realize real-time online monitoring. Background technique [0002] With the development of economy, technological progress and the improvement of people's living standards, the application of escalators is becoming more and more extensive. Escalators are widely used to transport people in public places such as subways, light rails, stations, airports, docks, shopping malls and buildings where the flow of people is concentrated. Its structure is mainly composed of steps, drive motor, main drive wheel, step chain tensioner, handrail belt, step guide rail, upper and lower cover plates, brake and electrical parts and other components. As a continuous operation of public equipment, once the escalator fails during the operatio...

AI Technical Summary

Problems solved by technology

As a continuous operation of public equipment, once the escalator breaks down during the operation period of the above-mentioned places, causing the elevator to stop, it will cause great adverse effects and economic losses

Images