Track circuit in-station insulation damaging online detection method and device

Abstract

The present invention provides a track circuit in-station insulation damaging online detection method and device. The method comprises the steps of: detecting an electrical parameter value of signalsof a track circuit itself; comparing the electrical parameter value with a reference value, and determining starting of an insulation damaging mechanism; and determining whether insulation damaging isgenerated in a section or not according to the electrical abnormal condition of the track circuit signals in the section. According to the technical scheme, the online detection can be achieved, installation and deployment are simpler, and the detection processing is much safer and more reliable.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to an on-line detection method and device for insulation damage in a rail circuit station. Background technique [0002] The track circuit section in the railway station is generally divided by mechanical insulation joints. In daily use, due to the thermal expansion and contraction of the rails or the impact of train operation, the insulation joints are often damaged by force, causing short circuits between the rails in the track circuit sections on both sides of the mechanical insulation joints, referred to as insulation damage. The consequences of insulation damage are relatively serious, which may cause wrong code reception and signal upgrades, causing the train to rush forward, posing serious safety hazards. [0003] In order to reduce potential safety hazards, it is necessary to detect the damage of the insulation joints. At present, most of them adopt the method of regu...

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Problems solved by technology

[0004] However, this detection method introduces an external signal such as the above-mentioned single-frequency signal

The introduction of this external signal will have an impact on the signal of the track circuit itself, and there are also potential safety hazards; at the same time, due to the use of a special frequency transmitter, the hardware structure of the detection device is more complicated

Moreover, the above two methods are active damage detection.

If the insulation joint is not damaged and the damage detection is still carried out, the workload of detection will be increased

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