US 2026/0103852 A1Published application

Regression of Rail Alignments from Survey Points

AssigneeAutodesk, Inc.

InventorsFlavia Dobrescu, Wojciech Garczewski, Qiang Wu, Valentin R. Koch

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Abstract

A method and system provide the ability to align a railway track. Survey representing the track are obtained. A centerline of the railway track and curvatures are autonomously computed based on the survey points. Geometry is detected based on the curvature plot and provides for geometry types including a tangent, a spiral, and a curve. An alignment is displayed and includes a curvature plot that includes the detected geometry with each geometry type displayed in a visually distinguishable manner. Parameters of the detected geometry are changed and the alignment is dynamically updated. The alignment is then exported to a physical machine that aligns the railway track consistent with the alignment.

Claims22

Dependent claims

A computer-implemented method for aligning a railway track, comprising:

obtaining survey points that represent the railway track, wherein the railway track is a physical real world railway track;
autonomously computing a centerline of the railway track based on the survey points;
autonomously computing curvatures based on the survey points and centerline, wherein the computing comprises plotting the curvatures on a curvature plot;
detecting geometry based on the curvature plot, wherein the detected geometry comprises geometry types, wherein the geometry types comprise a tangent, a spiral, and a curve;
displaying an alignment on a graphical user interface, wherein:
the displayed alignment comprises the curvature plot;
the detected geometry is displayed on the curvature plot;
each geometry type is displayed in a visually distinguishable manner from other geometry types;
changing parameters of the detected geometry;
dynamically updating the alignment based on the changed parameters;
exporting the alignment to a physical machine that aligns the railway track consistent with the alignment.

8 more elements

A computer-implemented method for aligning a railway track, comprising:

(a) obtaining survey points that represent the railway track, wherein the railway track is a physical real world railway track;
(b) autonomously computing a centerline of the railway track based on the survey points;
(c) autonomously computing curvatures based on the survey points and centerline, wherein the computing comprises plotting the curvatures on a curvature plot;
(d) detecting geometry based on the curvature plot, wherein:
(1) the detected geometry comprises geometry types;
(2) the geometry types comprise a tangent, a spiral, and a curve;
(3) the detecting comprises a sliding window that iteratively steps over the curvature plot until all survey points in the curvature plot are processed;
(4) at each step:
(i) analyzing data in the sliding window to determine start and end points of the geometry types;
(e) providing the start and end points to an alignment solver that creates an alignment geometry using a geometry solver;
(f) exporting the alignment geometry to a physical machine that aligns the railway track consistent with the alignment.

8 more elements

Dependencies are inferred from the claim text.