Receiver for 50HZ phase-sensitive track circuit

Abstract

The invention discloses a receiver for a 50HZ phase-sensitive track circuit, and the receiver comprises a matching unit which comprises a transformer and a plurality of capacitor assemblies, a primary winding of the transformer is connected with a relay transformer of the 50HZ phase-sensitive track circuit, and each capacitor assembly is connected in parallel with the primary winding of the transformer; the matching unit is used for performing impedance matching on the 50HZ phase-sensitive track circuit so as to convert an original voltage signal of the track circuit output by the relay transformer into a first voltage signal; and the board card group is connected with the secondary winding of the transformer and is used for acquiring the first voltage signal so as to judge the state of the track. According to the invention, phase adjustment of the original voltage signal and the first voltage signal can be realized through the capacitor assembly so as to satisfy one-time adjustment of the track circuit; redundant collection of track signals can be achieved through the board card set, and therefore the reliability of the receiver is improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a receiver for a 50HZ phase-sensitive rail circuit. Background technique [0002] The 50HZ phase-sensitive track circuit usually uses a binary receiver or a microelectronic receiver to collect track signals to determine whether the track is in an occupied state or an idle state. The two-element two-position receiver judges the status of the track through the pick-up and drop of the relay. Due to the limitation of the equipment structure, redundant acquisition cannot be realized and the volume is large. When designing multiple sections, it occupies a relatively large space. Although the design of the microelectronic receiver solves the problem that the binary relay cannot carry out signal redundancy acquisition to a certain extent, when a single device fails and is replaced, the track state collected by another device will suddenly lead to the unsafe side, which can be said ...

AI Technical Summary

Problems solved by technology

The two-element two-position receiver judges the status of the track through the pick-up and drop of the relay. Due to the limitation of the equipment structure, redundant acquisition cannot be realized and the volume is large. It occupies a relatively large space when designing multiple sections.

Although the design of the microelectronic receiver solves the problem that the binary relay cannot carry out signal redundancy acquisition to a certain extent, when a single device fails and is replaced, the track state collected by another device will suddenly lead to the unsafe side, which can be said Microelectronic receivers do not strictly implement redundant acquisition

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