VdFOS - Virtualisierung von Balisen-(Teil)funktionen durch Fiber Optic Sensing (FOS)
The project aims to enable the FOS system to clearly locate a train. Localisation should be made possible or simplified by a specific, clear acoustic signal. For this purpose, different variants of emissions and coding and their effect on the necessary evaluation algorithms must be analysed. The aim is to enable reliable evaluation and localisation using deterministic methods that are as simple as possible. A known signal is to be sent to the track environment, with which an assignment of train characteristics can be realised. With a further transmission path (e.g. 5G), it is possible to send the position itself to the associated train in real time or announced in advance. This data can then be used on board, to simulate virtual balises. Based on the virtual balises, the train will update its location and send position reports to the control center, just as with real balises.
How FOS works, using fibre optic cable
