Customer needs 

To know at rest the geometric position (the height and offset) of the contact wire(s) forming the catenary in relation to the track, and to be aware of the geometric position at the level of the catenary supports​

Types of data analyzed 

3D LiDAR point clouds

Data acquisition method 

ESV measurement train

Method of using the digital twin

Identification and sampled extraction of the position of the catenary contact wires along the entire track

Extraction of attachment points​

Measurement of the height and offset of each contact wire​

Identification of the support numbers to associate each attachment point with the corresponding pole number

Benefits for the client

• Intervene with precision on sections of the track identified as problematic
• Minimize the exposure of personnel to hazardous areas​
• Optimize interventions through precise and objective monitoring: regularly available high-density data with centimeter-level relative accuracy​

What is LiDAR ? 

LiDAR, which stands for "Light Detection and Ranging" or "Laser Imaging Detection and Ranging," is a distance measurement technique based on the analysis of the properties of a light beam returned to its emitter.

A LiDAR system is an optoelectronic device consisting of a laser emitter, a receiver with a light collector (such as a telescope or other optics), and a photodetector that converts light into an electrical signal. It also includes an electronic signal processing chain that extracts the desired information.

LiDAR data collected forms a three-dimensional point cloud with up to 7,000 points per square meter, providing a highly detailed and precise level of information.