Method and device for measuring displacement of railway track

Abstract

A method and a device for measuring the displacement of a railway track belong to the technical field of railway track longitudinal displacement measurement. An image identification device measures the longitudinal displacement of a railway track according to an established control strategy. The method comprises the following steps: a micro processing module in the image identification device matches a historical mark post image with a real-time mark post image to obtain the displacement of the mark post and stores the displacement; the micro processing module matches a track mark image takenin real time with a historical track mark image to obtain the offset of the mark center of the track; and finally, the micro processing module determines the longitudinal displacement of the railway track through an established algorithm according to the displacement delta(xc) of the mark post and the offset delta(xm) of the mark center of the track.

Description

technical field [0001] The invention relates to a method and a device for railway rail displacement, and belongs to the technical field of measuring the longitudinal displacement of railway rails. Background technique [0002] my country's railway transportation lines are divided into uplinks and downlinks. All passenger and freight vehicles must travel on a single line. In this way, under the joint action of passenger and freight vehicles, the railway track must produce longitudinal displacement. An important basic parameter for line maintenance is one of the key parameters for the safety of passenger and freight vehicles. [0003] The traditional way of measuring the longitudinal displacement of the rail is mainly manual measurement, the specific method is: [0004] ① 1KM pair of measuring platforms, set the marking points when changing tracks; [0005] ②Two people stand on both sides of the subgrade, pull the collimation line at the center of the datum point of the platf...

AI Technical Summary

Problems solved by technology

[0013] ① It is difficult to center the theodolite, and the adjustment is complicated, and the plumb line is greatly affected by the wind;

[0015] ③There are also human errors in the scale readings

[0016] In response to the above problems, a large number of railway workers have proposed a method of sampling laser technology to measure the displacement of railway rails, avoiding the measurement technical problems in the theodolite measurement technology, and achieved good results, but various measurements still cannot be maximized. Measurement efficiency, the degree of manual operation can be further reduced

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