An intelligent protection control system and protection method for platform door potential abnormality

Abstract

The invention discloses an intelligent protection control system of potential anomaly of a platform door and a protection method thereof. The system comprises a platform door potential anomaly intelligent protection control system loop connected between a rail and a platform door, the platform door potential anomaly intelligent protection control system loop is connected with a rail transit signal system, the platform door potential anomaly intelligent protection control system loop comprises a transistor arranged between the rail and the platform door, the transistor is connected with a current contactor and a voltage transmitter in parallel, a shunt connected with the transistor in series is connected with a current transmitter, the system loop also comprises an intelligent control device, the intelligent control device is connected with the current contactor, the voltage transmitter, and the current transmitter, and the intelligent control device is connected with the rail transit signal system. The platform door potential anomaly intelligent protection system is arranged between the rail and the platform door, protection is performed by employing the voltage transmitter and the current transmitter, and the device is advantaged by simple operation, low cost, and high practicality.

Description

technical field [0001] The invention belongs to a track safety protection device and a protection method, in particular to an intelligent protection control system and a protection method for abnormal electric potential of a platform door. Background technique [0002] Such as figure 1 As shown, the current domestic urban rail transit is powered by DC 750V or 1500V, the locomotive 1 obtains electric energy from the catenary 2, and the traction current returns to the negative pole of the traction substation rectifier unit through the track 3, "CJJ 183-2012 Urban Rail Transit Platform 4.4.8 of the Technical Specifications for Screen Door System stipulates: (1) The platform door 4 needs to be insulated; [0003] For regulation 1, in order to carry out insulation installation in accordance with the requirements of the specification, the following implementation plan is generally adopted: add an insulating spacer between the bolts at the bottom base of the platform door 4 and th...

AI Technical Summary

Problems solved by technology

[0007] First, the 4 doors of the platform door adopt an insulating spraying scheme: the door structure is made of insulating non-metallic composite materials, including the upper and lower connectors of the platform door (that is, the connectors with the platform board or the air duct on the top of the track), columns, columns Covering boards, skirting boards, thresholds, top box covers, emergency doors, end door push rods and movable doors, fixed doors, emergency doors, door frames of end doors, etc., the door body of the platform door that passengers and passengers may come into contact with The components of each part, although the prototype test has been realized at present, but there is no hanging net application

[0008] Second, the 4 doors of the platform doors are made of insulating materials: Insulation spraying is carried out on the stainless steel surface of the exposed metal part of the door, and the spraying materials are resin materials or polymer nanomaterials. accept

[0009] For the situation that the insulation installation of domestic subway platform doors generally does not meet the specifications, to solve the problem of reducing stray current while ensuring the safety of passengers and equipment, there is no solution at present. Only a plan to strengthen the insulation of the platform door body is proposed, but The scheme has the following disadvantages: first, it is currently in the stage of experimentation and testing, and there is no application performance, and the improvement of the insulation effect has yet to be verified by actual engineering, with long research and development cycle, slow effect and high cost; second, it relies heavily on Due to the insulation effect of the platform door, the insulation material will age with the operating time and operating environment, resulting in a decrease in the insulation effect, and the insulation problem will reappear. If the insulation is continued to be strengthened, secondary costs will easily occur; The insulation transformation of existing stations requires all-round insulation spraying or complete replacement of the installed platform doors, which is difficult to construct

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