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A Method for Determining the Directional Angle of a Railway Route Based on Field Measurements.
1Faculty of Civil and Environmental Engineering, Gdansk University of Technology, ul. G. Narutowicza 11/12, 80-233 Gdansk, Poland.
Sensors (Basel, Switzerland)
|February 24, 2024
Summary
This study presents a new method for determining a railway line's directional angle using inertial systems when satellite signals are unavailable. This technique aids in precise railway track mapping and navigation.
Area of Science:
- Geomatics Engineering
- Railway Engineering
- Navigation Systems
Background:
- Mobile satellite measurements are standard for railway track axis determination.
- Satellite signal loss or disturbance occurs in tunnels or areas with obstructions.
- Inertial systems offer a viable alternative for measuring directional angles during signal loss.
Purpose of the Study:
- To present a method for determining the directional angle of a railway line using inertial measurements.
- To address the limitations of satellite-based methods in challenging environments.
- To provide a complementary approach for accurate railway track mapping.
Main Methods:
- Utilizing Cartesian coordinates of the track axis for route visualization and orientation.
- Applying principles similar to the moving chord method for railway track curvature.
- Developing and discussing computational algorithms for directional angle calculation.
- Assessing method accuracy using a model geometric layout.
Main Results:
- A method for determining the directional angle of a railway line is presented.
- The method leverages track axis coordinates and inertial system data.
- Computational algorithms and accuracy assessments are provided.
- An example of directional angle determination using measurement data is included.
Conclusions:
- The proposed method offers a reliable way to determine railway line directional angles.
- This approach is particularly useful when satellite navigation is compromised.
- The technique enhances the robustness of railway track surveying and mapping.
Keywords:
assessment of the accuracy of the proposed methodcalculation methoddirectional angle of the routeissue of the length of the moving chordrailway trackMore Related Videos
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