Train integrity detection method and device based on pressure monitoring in train air duct

Abstract

The invention relates to a train integrity detection method and device based on pressure monitoring in train air ducts, wherein the method comprises the following steps: when the integrity test needsto monitor the train tail pipe pressure and the integrity test needs to monitor the head pipe pressure, if the pressure in the train air ducts meets the requirement A in sequence, determining a fact that the train has integrity; or when the integrity test does not need to monitor the tail pipe pressure of the train and the integrity test needs to monitor the head pipe pressure, if the pressure inthe train air duct meets the requirement B in sequence, considering a fact that the train has the integrity. The device comprises a train air duct and a head air pressure switch, an equalizing cylinder, an emergency exhaust valve and a train tail air pressure switch, wherein the train air duct, the head air pressure switch, the equalizing cylinder, the emergency exhaust valve and the train tail air pressure switch are respectively installed in the train air duct. Compared with the prior art, the present invention has the advantages of high efficiency, strong real-time performance, and being not influenced by the external environment and the like.

Description

technical field [0001] The invention relates to the field of train integrity detection, in particular to a train integrity detection method and device based on pressure monitoring in a train air duct. Background technique [0002] Integrity detection is an important guarantee for the safe operation of trains, and it is also a prerequisite for integrity monitoring. Therefore, before the train starts to run, it generally needs to carry out an integrity check. [0003] At present, most of the trains running on the existing line use methods such as track circuit type, contact connector type, jumper type, and GPS positioning type to detect the integrity of the train. Since there is no track circuit on the Qinghai-Tibet line, it is impossible to use the track circuit to detect the integrity of the train. There are serious vibrations and shocks during the operation of the train, which can easily lead to fretting fatigue failure of the connector. When the contact signal of any con...

AI Technical Summary

Problems solved by technology

Since there is no track circuit on the Qinghai-Tibet line, it is impossible to use the track circuit to detect the integrity of the train

There are serious vibrations and shocks during the operation of the train, which can easily lead to fretting fatigue failure of the connector. When the contact signal of any contact is detected to be abnormal, the on-board equipment will mistakenly believe that the integrity of the train is lost

However, the integrity detection method based on the jumper wire must wait for the jumper wire to be broken before the on-board equipment can consider the integrity of the train to be lost.

Integrity testing is not possible when the train cannot receive the expected GPS signal

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