| 摘要 |
<p>An arrangement for track-release indication for a plurality of track sections is disclosed, in which track circuits (G1...G6) assigned to the individual track sections are fed by a common track circuit transmitter (S) using the time-division multiplex method. The interrogation of the individual track circuits with respect to their occupation status is performed either by means of separate track circuit receivers (E1...E3) assigned to the individual track circuits or by means of a single track circuit receiver (E) which is connected to the individual track circuits in synchronism with the track circuit transmitter (S). The free/occupied criterion acquired by means of a track circuit interrogation is stored separately for each track circuit, at least until the next track circuit interrogation, in a memory (SP1...SP6) assigned to this track circuit. During the time in which a track circuit is not fed with power, testing for induced interference voltages of the track circuit can be performed. <IMAGE></p> |
