Train safety tracking protection method and device based on relative speed

A technology of relative speed and train, applied in the field of transportation, can solve problems such as insufficient guarantee of train tracking safety, and achieve the effect of avoiding rear-end collision accidents.

Active Publication Date: 2020-10-30
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Train safety tracking protection method and device based on relative speed
  • Train safety tracking protection method and device based on relative speed
  • Train safety tracking protection method and device based on relative speed

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] In order to facilitate the understanding of the embodiments of the present invention, several specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0028] Such as figure 2 Shown, be a kind of train safety tracking protection method based on relative speed of the present invention, comprise:

[0029] Step 11, track the running front car and the rear car and use the ...

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Abstract

The embodiment of the invention provides a train safety tracking protection method and device based on relative speed, and the method comprises the steps: 1, respectively obtaining the safety space-time track information of a train in a parking process through tracking running front train and rear train in combination with the performances of the trains through an electronic map and autonomous speed measurement positioning information; 2, acquiring the safe space-time track information of the front train by the rear train in an inter-vehicle communication mode; 3, allowing the rear train to combine the safe space-time track information of the front train and the rear train, establishing safety conditions according to the constraint that the position of the rear train cannot exceed the position of the front train at any moment, and solving the EBI speed triggered by emergency braking of the rear train; and 4, allowing the rear vehicle to compare whether the current measurement speed v2(t0) of the rear vehicle exceeds the EBI speed E2(t0) of the rear vehicle or not; and if v2(t0) is larger than E2(t0), outputting an emergency braking instruction, and decelerating the rear vehicle tobe stopped.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L23/18
CPCB61L23/18
Inventor 刘宏杰宿帅柴铭唐涛吕继东
Owner BEIJING JIAOTONG UNIV
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