Interlocking device for detecting presence or absence of train in section of railway line, has detection unit for sampling signals of digital signal stream carried by rails, and reconstruction part determining measurement signal data

摘要

The device has a signal source (3) and a detection unit (4) both electrically connected to rails (2) of a railway line, where the detection unit includes a recording device (7) for recording data of the signal source. The detection unit is arranged for sampling signals of a digital signal stream carried by the rails. A reconstruction part (8) determines measurement signal data derived from the digital signal stream, where the signal source data and the measurement signal data indicate whether a train is in the line.