Wireless signal system for preventing rapid trains from tailgating

Abstract

The invention discloses a wireless signal system for preventing rapid trains from tailgating. A vehicle-mounted subsystem of the wireless signal system is internally provided with two train signal wireless transceiving devices, namely a maneuvering desk wireless transceiver and a tailstock wireless transceiver; the tailstock wireless transceiver is used for sending local train encrypted response information and local train basic marker data to a rearward train in real time; and the maneuvering desk wireless transceiver is used for detecting and receiving the encrypted response information sent out by the tailstock wireless transceiver of a forward train of a same direction and a same station track in real time, performing interactive recognition on the received encrypted response information and the local train encrypted response information, sending out the local train encrypted response information to the forward train, sending signals on the received encrypted response information to a local train control computer used for sending out an instruction on deceleration or braking, and receiving the basic marker data emitted by the tailstock wireless transceiver of the forward train, and the local train control computer is used for processing GPS (Global Position System) positioning information differential value of synchronous time-markers of two trains and calculating a distance between the forward train and the rearward train, so that the speed of the local train is controlled.

Description

Technical field [0001] The invention relates to the field of wireless communication, in particular to a high-speed train anti-collision wireless signal system and a train signal wireless transceiver device. Background technique [0002] The technical specifications of the China High Speed ​​Rail Train Operation Control System (CTCS) are based on the European Train Operation Control System (ETCS). CTCS train operation control system has two subsystems, namely the on-board subsystem and the ground subsystem. See attached figure 1 Shown. [0003] The ground subsystem is mainly composed of the following parts: transponder, track circuit, wireless communication network (GSM-R), centralized train dispatch system (CTC) / radio block center (RBC). Among them, GSM-R is not a CTCS device, but it is an important part. [0004] The transponder is a transmission device that can send message information to the on-board subsystem. It can transmit fixed information or connect to trackside units to ...

AI Technical Summary

Problems solved by technology

[0008] Because the ground subsystem, GSM-R wireless communication system and track circuit in the CTCS train operation control system are relatively vulnerable to damage under severe weather conditions (such as: lightning) and geological disasters (such as: earthquakes), the GSM-R wireless communication system Temporary communication failures and the inability of the track circuit to transmit signal information correctly make it impossible for the tracking train to obtain traffic control information to enter the blocked section in front, and there will be a major rear-end collision between two trains running in the same direction and on the same track in the blocked section

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