DETECTING THE PRESENCE OF A VEHICLE

摘要

The invention relates to an arrangement for detecting the presence of a moving vehicle (72), the arrangement comprising: - an emitting antenna (3) adapted to emit an electromagnetic field in a range of emitting directions, wherein the emitting antenna (3) is to be mounted on the vehicle (72), - at least one receiving antenna (73) for receiving the electromagnetic field, wherein the receiving antenna (73) is to be mounted on the track of the vehicle (72), a detector device (91, 93) which is connected to the receiving antenna (73) and which is adapted to produce a detection signal depending on a received field intensity of the electromagnetic field that is received by the receiving antenna (73), wherein an emitted field intensity of the electromagnetic field that is emitted by the emitting antenna (3) is a function of the emitting direction, wherein the function comprises a maximum intensity or a minimum intensity in a predefined emitting direction and wherein the detector device (91, 93) is adapted to detect the presence of the vehicle (72) if the receiving antenna (73) receives the maximum or minimum intensity of the electromagnetic field emitted by the emitting antenna (3).