Train screening method and system based on moving block

Abstract

The invention provides a train screening method and a train screening system based on a moving block. The method comprises the following steps of: receiving the current position information of a trainand the occupation information of an axle counter section; acquiring the occupation conditions of the axle counter section where the train head is positioned and the front next axle counter section according to the current position information of the train and the occupation information of the axle counter section; judging whether the occupation condition of the axle counter section where the train head is positioned and the front next axle counter section satisfy the manual pre-screening condition or not; and if yes, sending a manual pre-screening request message to vehicle-mounted equipmentso as to carry out manual pre-screening operation, and calculating running permission for the train after receiving a confirmation finish message which shows that there is no other train in a certainrange in front of the train. According to the method and the system provided by the invention, when the train satisfies the manual pre-screening condition, a driver watches whether there is another train in the front so as to manually assist the RBC to realize the function of pre-screening the train, thereby realizing train upgrading ahead of time and improving the upgrading efficiency of a heavyhaul train.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train screening method and system based on moving block. Background technique [0002] Front-end screening of trains (referred to as "front-screening") is a precondition for the RBC on the ground to calculate the driving permit for the train to be upgraded. Through the front-end screening of the train, RBC confirms whether there is a hidden train in front of the train to be upgraded to ensure the operation of the train Safety. After the front-end screening of the train to be upgraded is successful, RBC starts to try to calculate the driving permit for the train. Therefore, it is particularly important for the train to complete the front-end screening, which is the prerequisite for the train to be upgraded normally to become a mobile block train. [0003] The process of the existing train front-end screening method is as follows: [0004] 1) According to the position inf...

AI Technical Summary

Problems solved by technology

Considering the communication delay, there will be cases where the train passes the axle counter in front but has not been upgraded, resulting in RBC being unable to calculate the driving permit for the train

[0008] In addition, if image 3 As shown, when the distance between the front of the train and the first signal in front is a visually visible distance, and the driver can visually confirm that there is no train occupied within this range, since the distance between the front of the train and the front axle counter is still greater than the distance that may appear on the line The shortest length of the train, although there is no car in front, but according to the above front-end screening process, it is not possible to calculate the driving permit for the train, and the train still needs to be driven according to the visual driving mode, which seriously affects the upgrade efficiency of heavy-duty trains

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