Analysis of measurement uncertainty for contact-less method used to measure the position of catenary contact wire, performed with the use of Monte Carlo method

Currently the majority of main railway lines in Europe are electrified, and electric trains have the biggest share in the entire amount of rail transport. Reliability of electrified railways is closely related to the issue of supplying traction vehicles with energy. The problems connected with diagnostics of energy consumption node, namely the contact line and the current collector, are therefore of fundamental importance for maintaining the high reliability level of electrified rail transport. The paper presents a novel diagnostic method of railway traction catenary using image analysis. Verification of the uncertainty of this method was carried out. For this purpose, a simulation model based on the Monte Carlo method. The influence of measurement uncertainty of input parameters on the accuracy of the method was investigated.