Communications: electrical – Systems – Selsyn type
Patent
1997-09-08
1999-12-21
Crosland, Donnie L.
Communications: electrical
Systems
Selsyn type
34031007, 340933, 340941, 104 8803, 2461661, 246167R, 246187R, 246192, 191 2, H04B 100, B61L 100
Patent
active
060054751
ABSTRACT:
A communication system for a plurality of carriages that travel along a rail. A power cable extends along the rail. The cable is used to convey electric current that drives the movable bodies and is also used to carry information between the carriages. The carriages communicate with one another by superimposing communication signals on the current flowing through the cable to transmit information and by extracting communication signals from the current flowing through the cable to receive information. A control unit at a fixed station relays communication signals transmitted between different carriages. The control unit receives communication signals, which the carriages transmit, from the cable, amplifies the signals, and returns the signals to the cable. The recipient carriage receives an amplified communication signal from the cable.
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Odachi Yasuharu
Takasan Masaki
Crosland Donnie L.
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
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