Telpher line with contactless energy and data transmission
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United States of America Patent
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Jun 19, 2007
Grant Date -
Jun 9, 2005
app pub date -
Apr 26, 2002
filing date -
Sep 24, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In an electric telpher system with non-contact power transmission between a feeder (4) placed at a spacing along a slide rail (1) for mobile transfer units (12) and an inductive current collector on the transfer unit, a data transmission loop (7) is arranged at a defined distance from the feeder for non-contact data transmission between a central control station (18) and the transfer units in such a way that its parallel conductors are located exactly within a field line of the feeder. The data transmission loop is direct-coupled with the central control station via a transmission station (10). Each transfer unit is equipped with a communication module (6) with transmit and receive coils on ferrite cores for inductive data transmission to ensure that these units can receive all information exchanged via the data transmission loop. The data transmitted by means of induction consists in sinusoidal signal sequences at two different fixed frequencies in the medium frequency range that serve as digital signals.
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