Location in railway traffic: generation of a digital map for secure applications
Frank Böhringer, Alexander Geistler · WIT transactions on the built environment · 2006
This paper presents the modelling scheme for a digital map based on the nodelink model.To use this map in combination with a sensor system that recognises turnouts by detection and classification of their components, these reference points must be modelled as spatially expanded objects and thus the node-link model must be extended.The digital map consists of the topological and geometrical level.Both levels are modelled using the Extended Entity-Relationship Model and hence easy implementation into a data base is given.The generation of the digital map for a small secondary line demonstrates performance of the successful modelling scheme.A location system for secure applications can be obtained by using an eddy current sensor system in combination with the proposed digital map.