Non-contact laser range finding method of railway platform gauge

Abstract

The invention relates to a non-contact laser range finding method of a railway platform gauge. The method comprises: (1), a laser range finding device is arranged beyond a railway platform safety line and when a power supply is turned on, the laser range finding device enters a working state; (3), heights of an instrument relative to a track top surface and a platform edge are measured respectively and a height difference value H of the track top and the platform surface is calculated; (4), horizontal distances between the instrument and the track side and between the instrument and the platform edge are measured respectively and a horizontal distance value L between the central line of the track and the platform edge is calculated; and (5), movement to a next measurement point is carried out and then measurement and calculation are carried out according to the above-mentioned steps. According to the invention, the whole measurement system employs a laser non-contact measurement technology; measurement equipment is arranged at the platform and laser signals are transmitted and received remotely; and position boundary line data are calculated precisely. The measurement tools and the staff are in a safety range relative to the train and no influence is caused on the train running during the whole operating process. According to the invention, the method is especially suitable for measurement work of a railway platform building gauge.

Description

technical field [0001] The invention relates to a non-contact laser distance measuring method for railway platform boundary, which belongs to the technical field of measurement. Background technique [0002] The railway building gauge is a limit cross-sectional profile perpendicular to the centerline of the line, which specifies the minimum size of the cross-section required to ensure the safe passage of rolling stock. The platform building boundary is an important part of the outline of the railway building boundary. [0003] At present, the measurement method used in the platform building boundary measurement is contact measurement, and the main measurement tools are ruler-type boundary measuring ruler and digital display boundary measuring instrument. The disadvantage of this measurement method is that the measurement tool must be connected to the platform and the railway track, and the surveyor must go down the road to operate, which occupies the driving lane. This con...

AI Technical Summary

Problems solved by technology

If the platform building boundary data cannot be updated regularly, it will have a great impact on traffic safety

[0005] In view of the above reasons, it is necessary to study a new type of non-contact platform building boundary measurement method to solve the practical difficulties in the platform boundary measurement operation.

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