A method and device for train safety tracking protection based on relative speed

Abstract

The embodiment of the present invention provides a relative speed-based train safety tracking protection method and device, the method comprising: step 1, tracking the running vehicle in front and the rear vehicle using the electronic map and autonomous speed measurement and positioning information combined with the performance of the train to obtain respectively The safe space-time trajectory information of the train during the parking process; step 2, using the communication mode between vehicles, the rear vehicle obtains the safe space-time trajectory information of the front vehicle; step 3, the rear vehicle combines the The safe space-time trajectory information of the vehicle in front and the rear vehicle, according to the position of the rear vehicle at any moment, can not exceed the constraint of the position of the vehicle in front to establish a safety condition, and solve the emergency braking of the rear vehicle to trigger the EBI speed; step 4, the The following vehicle compares the current measured speed v of the following vehicle 2 (t 0 ) exceeds the EBI speed E of the said rear vehicle 2 (t 0 ); if v 2 (t 0 )>E 2 (t 0 ), an emergency braking command is output to decelerate the rear vehicle to a stop.

Description

technical field [0001] The invention relates to the field of traffic, in particular to a relative speed-based train safety tracking protection method and device. Background technique [0002] With the development of my country's national economy and the acceleration of urbanization, rail transit is facing the need to transport more passengers and goods and has become an important means of relieving traffic pressure. As the "brain and nerve center" of rail transit, the control goal of the train operation control system is to ensure the efficient operation of the train under the premise of ensuring safety. [0003] In the current train control system based on moving blocks, there are theoretically two ways to protect trains from overspeed: "hitting a hard wall" (thinking that the vehicle ahead stops instantaneously) and "hitting a soft wall" (considering tracking the relative speed between trains). When using the model of hitting a hard wall, the end point of the movement aut...

AI Technical Summary

Problems solved by technology

Therefore, the constraints that only ensure that two vehicles do not collide at the time of stopping are not enough to ensure the safety of train tracking

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