Safety overlay collision avoidance system for train of CTCS (Chinese Train Control System) based on vehicular-to-vehicular communication and method thereof

Abstract

The invention discloses a safety overlay collision avoidance system for train of CTCS (Chinese Train Control System) based on vehicular-to-vehicular communication. The system comprises a collision avoidance system vital computer, an electronic map database, a velocity measuring and positioning sub system, a vehicular-to-vehicular communication sub system and a man-machine interaction sub system. The collision avoidance system vital computer calculates and analyzes the collision probability by integrating velocity information, position information and direction information of the train as well as velocity information, position information and direction information of adjacent trains received by the vehicular-to-vehicular communication sub system as well as the electronic map data, and gives an alarm prompt and a handling suggestion according to the level of collision; the electronic map database provides electronic map data for the collision avoidance system vital computer and the velocity measuring and positioning sub system; the man-machine interaction sub system inputs data of the train and gives the alarm prompt if collision occurs probably. The invention can enhance the safety level of railway transportation essentially and overcome the deficiency that collision occurs when the control center malfunctions and vehicular-to-ground communication is not smooth, and has high social benefit. The system provided by the invention can be overlaid on the CTCS and share train data information with the CTCS.

Description

technical field [0001] The invention relates to a CTCS safety superposition train collision protection system and method based on vehicle-to-vehicle communication. Background technique [0002] In 2011, two serious train collision accidents occurred in my country's rail transit field. Although my country's rail transit field has invested a lot of construction costs to improve the China Train Operation Control System (CTCS), it is still impossible to completely avoid the collision problem between trains. [0003] Collision protection systems have been applied in the fields of maritime affairs, aviation, and road traffic. In 2006, the German Aerospace Center launched the research on the railway collision avoidance system. In 2009, the Alaska Railway Company of the United States launched the research and development of such systems. In 2011, India drafted a draft of the train collision protection specification. my country's research in this field is still in its infancy. [0...

AI Technical Summary

Problems solved by technology

In 2006, the German Aerospace Center launched the project research on the railway collision avoidance system. In 2009, the Alaska Railway Company of the United States launched the research and development of such systems. In 2011, India drafted the draft of the train collision protection specification. my country's research in this field is still in its infancy.

(1) The operation of the system is overly dependent on the ground infrastructure and dispatching center, and the investment cost is high; (2) The driver cannot independently judge the running status of the train ahead, and cannot actively perform collision protection operations in a timely manner

(3) There is no direct communication between the train and the train, and the vehicle cannot judge the running status of the preceding train and the accompanying train, and whether there is a risk of collision

(1) The equipment adopts an 800M independent frequency band, which is close to the GSM-R frequency band dedicated to railways, which is easy to cause mutual interference in the vehicle-ground safety communication system, resulting in a high bit error rate; (2) The system is installed independently, and cannot form a closed-loop real-time transmission

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