Device for the detection of the occupied or free state of a track section
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United States of America Patent
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Jun 25, 2013
Grant Date -
Jun 2, 2011
app pub date -
May 13, 2009
filing date -
May 23, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A device is configured to detect whether a track section is occupied or free. The device includes at least one transmitter on the vehicle side, and pairs of receivers on the track side, which are disposed at the ends of the track section, each having first and second receivers disposed at a distance in the track direction. The receivers receive signals from the transmitter as the vehicle passes. They are connected to an analysis unit. In order to ensure exact association between the track section ends and the current vehicle position, the invention provides that for a coupling range between the transmitter and the receiver, plus a maximum driving segment, which results from a minimum pulse duration of the receivers and a maximum segment speed, a response of the receivers during passage is preset such that the responses of the receivers of the receiver pair overlap in the event of increase of the coupling range due to an error.
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