Apparatus and method for measuring latitude and longitude of track coordinate point

Abstract

The invention discloses an apparatus and a method for measuring the latitude and the longitude of a track coordinate point. The measurement apparatus comprises: a positioning system for detecting andrecording the latitude and longitude coordinates and the kilometer post positions of a first position of a train stopping close to a target point and a second position of the train just passing through the target point; a range finding device for measuring a first horizontal distance L between an antenna and the coupler of the train and a second horizontal distance a from the coupler to the targetpoint when the train stops at the first position close to the target point; and a processor for calculating a walking distance b between the first position and the second position according to the kilometer post positions of the first position and the second position and determining the latitude and longitude coordinates of the target point on a track according to the kilometer post positions ofthe first position and the second position, the walking distance b, the first horizontal distance L, the second horizontal distance a and a position proportional relationship.

Description

technical field [0001] The invention belongs to the field of signal systems for heavy-duty freight railways, and in particular relates to a device and method for measuring latitude and longitude heights of track coordinate points. Background technique [0002] In the field of rail transit, the geographical coordinates of coordinate points along the track are usually completed by hand-held satellite positioning equipment or track carts with satellite positioning functions. Hand-held satellite positioning equipment is easy to carry and easy to measure, but often has low accuracy. Rail cars have high accuracy, but are expensive and inconvenient to transport. Both of these two measurement methods rely on manpower to move between different measurement points to a certain extent, and the measurement efficiency is low. [0003] The contemporary rail traffic control technology represented by the mobile block technology of heavy-haul railways needs to measure the latitude and longit...

AI Technical Summary

Problems solved by technology

[0003] The contemporary rail traffic control technology represented by the mobile block technology of heavy-haul railways needs to measure the latitude and longitude coordinates of designated locations along the line. The heavy-haul freight railways represented by the Shuohuang Railway are usually hundreds of kilometers long. means, measurement efficiency is too low to be a viable solution

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