Screen door fault location system

Abstract

The invention discloses a screen door fault location system, which comprises a main monitoring center, door motor controllers and screen door switches (K1 and K2), the door motor controllers are respectively connected with the main monitoring center, the screen door switches (K1 and K2) are controlled by the door motor controllers and respectively connected in series with one another to form a safety circuit, and each door motor controller is provided with a diagnostic circuit which is connected with the screen door switches (K1 and K2); when the screen door switches (K1 and K2) are closed, the diagnostic circuit can convert the voltage of 24V between the screen door switches (K1 and K2) into a low-voltage signal and transmit the low-voltage signal to the processor of the door motor controller, and the door motor controller uploads the status of the safety circuit and the information of a door motor to the main monitoring center. The screen door fault location system can monitor the operation of a subway in real time and locate the fault of a screen door, so that the screen door can be overhauled in time.

Description

technical field [0001] The invention relates to a safety circuit of a subway screen door, in particular to a diagnosis and positioning system of the safety circuit. Background technique [0002] The subway is an effective measure to solve urban traffic congestion. The subway also has the advantages of reducing noise interference, saving energy, and reducing pollution. The subway screen door is an important equipment in the construction of modern urban subways. Most of the new subway lines in major cities across the country use the screen door system. The subway screen door is a high-tech product integrating architecture, machinery, materials, electronics, and information. It is mainly composed of door structure, power system, drive system, control system, and network system. [0003] As the core component of the screen door control system, the safety loop directly affects the stability and safety of the screen door system. Each screen door device is equipped with a safety ...

AI Technical Summary

Problems solved by technology

Otherwise, if any sliding door or emergency door is not fully closed, the corresponding detection switch is open, and its safety circuit is disconnected, resulting in the inability of the series safety circuit to conduct, and the signal system cannot detect the safety signal of the screen door system. , the trains that have stopped at the station cannot leave, and the trains that are about to enter the station will be stopped in an emergency

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