ZPW-2000A track circuit system

Abstract

The invention provides a ZPW-2000A track circuit system, which comprises a receiver, a communication interface device, a sender, a track circuit maintenance machine, a cable lightning protection analogue network, an attenuation redundancy controller, a cable and outdoor trackside equipment, wherein the sender is used for generating and outputting corresponding signals to a train and the receiver according to received carrier-frequency and low-frequency coding information; the receiver is used for demodulating the received signals according to the received carrier-frequency and low-frequency coding information, obtaining track state information and outputting to the track circuit maintenance machine and a train control system; the track circuit maintenance machine is used for analyzing and judging the received self working state of the sender, the self working state of the receiver, signal amplitude and current output by the sender, the signal amplitude of a receiving terminal and the track state information, and correspondingly processing according to judgement results; and the communication interface device is used for completing communication protocol conversion of the sender, the receiver, the track circuit maintenance machine and the train control system.

Description

technical field [0001] The embodiment of the present invention relates to the field of railway signals, in particular to a ZPW-2000A track circuit system. Background technique [0002] With the increase of train speed and the construction of high-speed railway in our country, in order to ensure the safety of EMU operation, higher requirements are put forward for the train control system. Among them, the track circuit system, as the basic equipment of the train control system, is used to check the broken rail of the rail and the occupied position of the train, and at the same time transmit the number of idle sections in front and the situation of the section in front to the train, so as to ensure the safety of the train control system. safe and reliable operation. [0003] However, the existing track circuit system uses a relay coding method to set the signal frequency sent by the track circuit system, which makes the peripheral coding equipment of the track circuit system c...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a ZPW-2000A track circuit system, which is used to solve the complexity of the peripheral coding equipment of the track circuit system in the prior art, the track circuit cannot check broken rails in the whole process, the rails are rusted, the train cannot be shunted, and outdoor equipment failures The problem cannot be effectively checked, thus effectively reducing the problem of track circuit system failure or long recovery time and difficult maintenance

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