Monitoring system and method of escalator handrail embedded steel wire capable of achieving real-time marking

Abstract

The invention discloses a state monitoring system of an escalator handrail embedded steel wire. The system comprises a clamping type electromagnetic monitoring device, a motion positioning device anda data collecting and processing module, wherein the clamping type electromagnetic monitoring device comprises a clamping support and three electromagnetic modules, each electromagnetic module comprises an E-shaped magnetic core, an exciting coil and two induction coils, magnetic lines of force emitted by the exciting coil pass through a handrail and then penetrate through the induction coils at two sides to form a closed loop, a detection area is formed to detect magnetic flux, the data collecting and processing module is separately connected with the induction coils of the electromagnetic modules so as to detect the defects of the embedded steel wire according to the magnetic flux conditions measured by the electromagnetic modules, and the motion positioning device comprises a supportingrod, a roller and an encoder. According to the system, the magnetic flux change of the embedded steel wire is detected through the three sets of electromagnetic modules, the defects are judged and located, reliable data support is provided for timely maintenance of the escalator, and the operation safety of the escalator is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of escalator monitoring, and more particularly relates to a monitoring system and method for steel wires embedded in handrails of escalators. Background technique [0002] As special equipment, escalators are responsible for the important task of transporting passengers in railways and urban rail transit, and their safety is of paramount importance. In order to ensure the safety of passengers and reduce the probability of accidents, regular inspection and maintenance of escalators is required to ensure that the equipment is in good operating condition. However, at present, the maintenance of escalators mainly adopts manual periodic repair and fault repair, that is, the staff conducts periodic inspections when no fault occurs, and repairs when a fault occurs. This method is an after-the-fact behavior and cannot effectively prevent the occurrence of faults. It is beneficial to avoid major accidents; at the sa...

AI Technical Summary

Problems solved by technology

[0004] In summary, the existing escalator monitoring has the following deficiencies: (1) An electromagnetic sensor only monitors one object, and the detection capability and range are small; (2) The measurement accuracy of the open-loop sensor is low, and the maintenance of the closed-loop sensor itself It is inconvenient to disassemble; (3) The E-type electromagnetic sensor structure can only detect one side of the embedded steel wire, and cannot achieve full coverage of the detected object; (4) The positioning measures for the detection point defect are insufficient, and the defect cannot be accurately located exact location

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