发明名称 |
Communication method and apparatus for conveyor carriages |
摘要 |
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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申请公布号 |
US6005475(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19970925346 |
申请日期 |
1997.09.08 |
申请人 |
KABUSHIKI KAISHA TOYODA JIDOSHOKKI SEISAKUSHO |
发明人 |
TAKASAN, MASAKI;ODACHI, YASUHARU |
分类号 |
H04B5/00;B61L3/22;H04B3/60;(IPC1-7):H04B1/00;B61L1/00 |
主分类号 |
H04B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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