3D Track Geometry Visualization for Railway Maintenance
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Solution Overview
Problem
Current methods for measuring and correcting track geometry in railway tracks are complex and prone to operating errors due to abstract and unclear visual representations of curvature, longitudinal level, and superelevation images, which can lead to misalignment and safety issues.
Innovation Solution
A method that calculates a three-dimensional position image from the target track geometry, including curvature, longitudinal level, and superelevation images, and displays it in a perspective view, synchronized with actual track markers, allowing for intuitive control and automatic correction of deviations, with the ability to project this image onto the operator's window or transmit it remotely for remote monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If abstract curvature images, longitudinal level images, and superelevation images are used to represent track geometry, then measurement precision is maintained, but ease of operation deteriorates due to complexity and operator errors
Solution Approach 1:
The patent creates a visual copy of the actual track geometry by projecting a three-dimensional model of the measured track onto a display surface. This copy allows operators to intuitively understand track deviations without interpreting complex abstract images, while the underlying precise measurement data remains intact for correction calculations
Solution Approach 2:
The patent transforms two-dimensional abstract curvature, longitudinal level, and superelevation images into a three-dimensional visual representation of the track. This dimensional transformation provides intuitive spatial understanding while preserving all measurement precision data through synchronized display of deviation values
2Measurement precision
If multiple separate displays for curvature, longitudinal level, and superelevation are used, then measurement precision is maintained, but device complexity increases
Solution Approach 1:
The patent merges multiple separate display systems for curvature, longitudinal level, and superelevation into a single integrated display showing a three-dimensional track model. All measurement precision data from the separate systems is synchronized and overlaid on the unified visual representation, reducing overall system complexity
Solution Approach 2:
The three-dimensional track model display serves multiple functions simultaneously: it visualizes curvature deviations, longitudinal level deviations, and superelevation deviations in a single intuitive view. The system universally handles all track geometry parameters through one display interface while maintaining precise measurement capabilities
3Manufacturing precision
If corrective values are applied with delay due to acceptance recorder positioning, then manufacturing precision is maintained, but productivity decreases
Solution Approach 1:
The patent enables preliminary visualization of track deviations and correction needs before the measurement system physically reaches those locations. The three-dimensional model projects future track states, allowing operators to prepare corrective actions in advance, thereby eliminating delays while maintaining precision through real-time data synchronization
Data Source
AI summary
A method for measuring and displaying the track geometry of a track system uses a track-driveable permanent-way machine, comprising a control measurement system measuring the track position to be corrected before a lifting and lining device, an acceptance measurement system measuring the corrected track position after it, and output units displaying the measured values. The lifting and lining device is controlled depending on the measured values of the control measurement system and the acceptance measurement system to achieve a specified target track geometry. A three-dimensional position image is calculated from the curvature image (k(s)), longitudinal level image (h(s)) and superelevation image (u(s)) of the target track geometry, put into a perspective display, and displayed by the output unit, supplemented by measured error curves for track parameters of track direction, superelevation, twist, and longitudinal level.