Method and device for positioning a train

Abstract

The present invention proposes a train positioning method and device, wherein the train positioning method includes: receiving the train latitude and longitude information sent by the satellite positioning equipment of the train and obtaining an electronic map recording the position information of the virtual responder, the position information including the virtual responder The mileage marker and latitude and longitude information of the train; the speed measurement error envelope of the train is calculated according to the train latitude and longitude information; according to the speed measurement error envelope and the position information of the virtual balise, the train passes through the virtual balise Time train positioning data; calculate the position information of the train according to the train positioning data. Through the technical solution of the invention, the initial positioning of the train can be completed without the cooperation of the ground transponder, the cost of ground equipment layout can be saved, the efficiency of train positioning can be improved, and the operation efficiency of the heavy-duty railway can be improved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a train positioning method and device. Background technique [0002] In the existing mobile block system, the train needs to pass through two fixed transponders on the ground first, so that the on-board ATP equipment can calculate the initial position and running direction of the train. [0003] When a train passes two transponders in succession, ATP obtains the initial position of the train as follows: [0004] The train passes through the continuous balise for initial positioning, and according to the order in which the train passes through the two balises, the running direction of the train is obtained by querying the electronic map data; according to the position of the second passing balise in the electronic map data, the train The initial position of the locomotive; when there is no turnout with an unknown state at the car body, the ATP at the head end calculates the ...

AI Technical Summary

Problems solved by technology

[0005] However, on the main line of the heavy-duty railway, the average interval between each stop is about 20km. If multiple transponders are arranged according to the existing mobile block scheme, it will lead to a large increase in cost

If in order to save costs, no balises are arranged in the section of the route planning or as few balises are arranged as possible, then it will take a long time for the train to complete the positioning through two balises, and the accumulation error of the train positioning envelope will become larger and larger, which will affect Driving efficiency and positioning reliability

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