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016 Camera-based monitoring and condition monitoring of switches

Published: 28 April 2014

The project's objective has been to reduce the time for corrective maintenance and snow removal of traces by minimizing the number of unnecessary call-outs, and contribute to the proper resources be included in the troubleshooting and thus free up more capacity for traffic on track and reduce train delays.

Switshes is a known cost drivers for railway maintenance. They are extremely vulnerable to loads from both heavy freight trains and fast passenger while being difficult to access for service without train services affected. Approximately 20% of all errors reported in the track portion 119 during the years 2008-2013 were caused by switches, and of these, 10% could not be traced back to the right gear. For 50% the cause could not be determined without real fault was reported as "not possible to define" or "no fault" in 28% of cases the cause "of snow or ice." This means that a large number of call-outs to remedy faults in switches is done unnecessarily. By placing four cameras that can monitor and control switches remotely can be a part of felutryckningarna avoided. The technology consists of an Internet Connected camera that hung from the contact line above the gear which can then provide images on request. The camera mounting / suspension of the contact line is fast and easy since no additional posts needed and the overview image of the gear will be very good.

project Results

The project's objective has been to reduce the time for corrective maintenance and snow removal of traces by minimizing the number of unnecessary call-outs, and contribute to the proper resources be included in the troubleshooting and thus free up more capacity for traffic on track and reduce train delays. A longer-term goal is to develop the camera surveillance to TRENDA state and the degradation rate of switches in order to perform the right maintenance at the right time at the right cost.

Project manager Dan Larsson, Damill AB Dan.larsson@damill.se

Project partners: Damill AB Infranord, Vossloh, Trafikverket