FIELD: transport.
SUBSTANCE: invention relates to railway ACS and telemetry, namely, to train traffic spacing control. The signal of alternating current is gave to the one end of the track line. This signal is received at another end of the line. An the middle of the track line the resonance contours are connected. The energy of this signal is accumulated and gave to the second part of the track line. With signal at enter end and track line center, tack non-occupancy is registered, while with no signal at enter end occupancy of track left part and non-occupancy of right part are registered. No signal condition at enter end and track center allows registering occupancy of track right half.
EFFECT: increased length of controlled track thanks to re-reception and accumulation of signal power at track center by accumulator.
1 dwg
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