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Review
. 2022 May 31;22(11):4185.
doi: 10.3390/s22114185.

A Review on Technologies for Localisation and Navigation in Autonomous Railway Maintenance Systems

Masoumeh Rahimi  1 , Haochen Liu  1 , Isidro Durazo Cardenas  1 , Andrew Starr  1 , Amanda Hall  2 , Robert Anderson  2
Affiliations
Review

A Review on Technologies for Localisation and Navigation in Autonomous Railway Maintenance Systems

Masoumeh Rahimi et al. Sensors (Basel). .

Abstract

Smart maintenance is essential to achieving a safe and reliable railway, but traditional maintenance deployment is costly and heavily human-involved. Ineffective job execution or failure in preventive maintenance can lead to railway service disruption and unsafe operations. The deployment of robotic and autonomous systems was proposed to conduct these maintenance tasks with higher accuracy and reliability. In order for these systems to be capable of detecting rail flaws along millions of mileages they must register their location with higher accuracy. A prerequisite of an autonomous vehicle is its possessing a high degree of accuracy in terms of its positional awareness. This paper first reviews the importance and demands of preventive maintenance in railway networks and the related techniques. Furthermore, this paper investigates the strategies, techniques, architecture, and references used by different systems to resolve the location along the railway network. Additionally, this paper discusses the advantages and applicability of on-board-based and infrastructure-based sensing, respectively. Finally, this paper analyses the uncertainties which contribute to a vehicle's position error and influence on positioning accuracy and reliability with corresponding technique solutions. This study therefore provides an overall direction for the development of further autonomous track-based system designs and methods to deal with the challenges faced in the railway network.

Keywords: autonomous systems; localisation; railway maintenance; sensor fusion.

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Conflict of interest statement

The authors declare no conflict of interest related to this work.

Figures

Figure 2
Figure 2
Elements of preventive maintenance.
Figure 1
Figure 1
Total maintenance expenditure, 2011–2012 to 2020–2021 (2020–2021 prices).
Figure 3
Figure 3
Elements of corrective maintenance.
Figure 4
Figure 4
Track-side infrastructures.
Figure 5
Figure 5
On-board sensors: (a) stereo depth camera; (b) environmental camera; (c) IMU; (d) RTK-GPS; (e) 3D Lidar.
Figure 6
Figure 6
Main components of a railway vehicle positioning.
Figure 7
Figure 7
Integration of different sensors for measuring train position and speed.
Figure 8
Figure 8
Fishbone diagram showing factors contributing to location errors.
See this image and copyright information in PMC

References

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