Method for on-site and real-time collection and processing of geometric parameters of railway lines

Abstract

The invention relates to a method for on-site and real-time collection and processing of geometric parameters of a railway line, in a specific but non-limiting manner. A method relating to height and pull-out values of contact lines in electrified lines and metrology values of specific elements of infrastructure in any line generated based on static measurements starting from a two-dimensional scene perpendicular to a track axis wherein the method comprises the steps of: determining a number of angular positions for each scene, determining the minimum number of passes in each position, obtaining the original coordinates, applying an averaging algorithm, applying an offset correction, transforming the coordinates, and applying these steps to solve the height and pull-out values of the catenary (6), or applying these steps to solve the metrology values of specific elements of the infrastructure (13). An optimized, efficient and simple method is achieved which enables real-time management and processing of data obtained from a railway infrastructure.

Description

technical field [0001] The present invention relates to methods for the on-site and real-time collection and processing of geometric parameters of railway lines, in particular but not limited to methods related to height and pull-out values ​​of contact wires in electrified lines and metering values ​​of specific elements of infrastructure. [0002] The invention is characterized in that it combines different types of data processing, starting from the raw data collected by sensors recording the geometrical parameters of the railway line, according to algorithms specifically tailored to the object of the method of the invention. [0003] Accordingly, the present invention falls within the field of railways, and in particular pertains to methods for measuring geometrical parameters of infrastructure. Background technique [0004] In a railway environment, it is necessary to control the state of the geometric parameters that define the infrastructure throughout its life cycle,...

AI Technical Summary

Problems solved by technology

The use of these sensors as a method in a railway environment has obvious disadvantages compared to LIDAR type sensors: they require spotlights in order to illuminate the scene in the absence of ambient light, at night it is necessary to schedule measurements with this type of equipment Most common times for active maintenance tasks

Since spotlights must have sufficient power to illuminate targets located several meters high / distant, and the space available for integration into the trolley is reduced, the number of spotlights that can be integrated is limited; for this reason, the illumination can only be focused towards a certain object (contact line, pillar, etc.), thereby reducing the number of geometric parameters of the railway infrastructure that the device can capture and process in real time

[0017] Finally, CN110207597A describes a method for measuring the height and pull-out of contact wires based on LIDAR scanners specially designed for railway environments; these types of The method of using specially designed units limits the possibilities for use in operational lines, making it difficult for manufacturers to afford these lengthy and costly certification processes if the market for the equipment is reduced

Images