Method and device for detecting poor shunting of track circuit

Abstract

The invention relates to a method and device for detecting poor shunting of a track circuit, and belongs to the technical field of railway signal maintenance. According to the technical scheme, a detection operation device walks on a track, and the shunting state of a train detection track circuit is simulated by short-circuiting the track circuit; a detection body collects shunt voltages in time through a voltage sensor, then amplifies signals through an amplifier, compares the amplified signals with a set value, and if the actual value is higher than the set value, the detection body does not change. And if the actual value is lower than the set value, the detection body sends a sound-light alarm through the alarm module to prompt that the shunting of the track circuit is poor. The method has the advantages that whether faults of poor shunting of the track circuit exist in different track sections or not can be timely and accurately diagnosed, the names of the poor shunting sections of the track circuit can be locked, and therefore the safety of driving operation and the right point of pulling and exchanging operation are guaranteed.

Description

technical field [0001] The invention relates to a method and a device for detecting faulty track circuit shunting, and belongs to the technical field of railway signal maintenance. Background technique [0002] The railway track circuit is a circuit composed of two rails as conductors, both ends are insulated by rails, and connected to power transmission and power receiving equipment. It plays the role of supervising and checking whether the line is occupied. However, in areas with less work in metallurgical enterprises, due to dust pollution, rusted rails, and rusted rail surfaces in rainy seasons, the track relays cannot fall when the track circuit section is occupied by vehicles, resulting in poor shunts, which is also commonly referred to as "" can't die" phenomenon. The track circuit equipment cannot correctly reflect the occupancy of the railway line, the interlocking function of the electrical centralized equipment fails, and the console display is distorted, which ...

AI Technical Summary

Problems solved by technology

However, in areas with less work in metallurgical enterprises, due to dust pollution, rusted rails, and rusted rail surfaces in rainy seasons, the track relay cannot be dropped when the track circuit section is occupied by cars, and there is a bad shunt. This is also commonly referred to as "" "Undead" phenomenon

Track circuit equipment cannot correctly reflect the occupancy of railway lines, the interlocking function of electrical centralized equipment fails, and the console display is distorted, which in turn has a serious impact on driving safety and directly threatens the safety of receiving and dispatching trains and shunting operations. There have been many accidents of jamming and derailment caused by poor circuit shunting in recent years

And it caused the disconnection of the company's production process chain, which became an urgent problem to be solved.

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