METHOD FOR POSITIONING A TRACK-BOUND VEHICLE, USE OF THE METHOD, AND SYSTEM FOR POSITIONING A RAIL-BOUND VEHICLE

摘要

The invention relates to a method for positioning a vehicle (1), in particular a rail vehicle, using objects (4) in known positions along the travel path (2) of the vehicle (1). The speed of the vehicle (1) is ascertained by detecting the frequency shift of a reflected radar signal (Sr1) which has been received and detecting each object in order to position the vehicle (1) relative to each object (4) using radar. The aim of the invention is to carry out such a method with comparably little complexity. This is achieved in that upon detecting each object (1), a distance value (d1) between the vehicle (1) and the object (4) is ascertained by detecting the signal propagation time of the reflected radar signal (Sr1) which has been received; the speed of the vehicle is determined by detecting the frequency shift of an additional reflected radar signal (Sr2) which has been received after a time period (Td); and another distance value (d2) between the vehicle (1) and the object (4) is ascertained by detecting the signal propagation time of the additional reflected radar signal (Sr2) which has been received. If a difference between the distance values (d1, d2) matches a path length calculated from the ascertained speeds and the time period (Td), the other distance value (d2) is used to position the vehicle (1). The invention also relates to the use of the method according to the invention and to a positioning system.