| 摘要 |
PROBLEM TO BE SOLVED: To provide a train operation information system in which the transmission load is less fluctuated even when the number of portable terminals is increased. SOLUTION: The train operation information system comprises an operation information distribution unit to broadcast operation control information of all trains under control, and a display terminal unit which receives operation control information, extracts operation control information on a self terminal, and displays operational information. Information is broadcast arbitrarily, and operation control information can be shared without concentration of accesses from the terminals. COPYRIGHT: (C)2005,JPO&NCIPI
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