System and method for safe power cut/power transmission in metro vehicle overhaul and maintenance

Abstract

The invention provides a system and method for safe power cut / transmission system in metro vehicle overhaul and maintenance. The system comprises a plurality of image acquisition modules used for acquiring image information of a roof overhaul platform and a contact net line pantograph; an upper computer which comprises a power cut / power transmission program corresponding to the power cut / power transmission operation process of a touch net line, and trained first to third neural network models; a switch blade mechanism box control module; and a grounding rod lock box / grounding wire lock box used for placing a grounding rod / grounding wire. The knife switch mechanism control module box, the grounding rod lock box and the grounding wire lock box can identify an access control card of an operator and send read access control card information to the upper computer; and the upper computer generates instruction signals for opening the knife switch mechanism box, the grounding rod lock box and the grounding wire lock box according to an operation instruction input by a guardian, the power interruption / transmission program, received access control card information and identification results of the first to third neural network models. The invention further provides a method for safe power disconnection / power transmission in metro vehicle overhaul and maintenance.

Description

technical field [0001] The invention relates to the field of subway train maintenance, in particular to a system and method for safe power interruption / transmission for maintenance of subway vehicles. Background technique [0002] There is a catenary line above the subway train, and the voltage of the catenary line is 1500V DC. The pantograph on the top of the subway train is electrically connected to the catenary line to provide power for the operation of the subway train. To repair the roof equipment (such as train air conditioner, pantograph, etc.) in the garage, it is generally necessary to board the roof maintenance platform for operation. For the sake of safety, when climbing on the roof, it is necessary to carry out the power-off work of touching the grid in the garage. In order to prevent sudden calls, it is necessary to hook up the grounding rod, one end is fixed on the catenary, and the other end is fixed on the rail, and then go to the maintenance platform on the...

AI Technical Summary

Problems solved by technology

Each operation of the current power-off / power-on protection depends on whether the operator performs according to the predetermined process, and there are hidden dangers of human error in this mode

There is a single operation or a person without a power-off / power-transmitting operation certificate performs the power-off / power-transmitting operation, the operator makes a wrong disconnection, wrongly transmits power, hangs a grounding rod without an electrical test after the breaker is broken, and breaks in for maintenance without a safe power-off Misoperations such as power transmission operation without removing the ground rod, personal injuries and equipment damage accidents caused by misoperations occur from time to time

Even if two people work, it is still impossible to ensure the safety of breaking / powering the catenary line during the inspection and maintenance of subway vehicles

Images