Novel subway passenger information system
The utility model provides a novel subway passenger information system which comprises a PIS (passenger information system), an internal system of the subway passenger information system, an external system of the subway passenger information system and an interface system of the subway passenger in...
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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
05.09.2012
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Subjects | |
Online Access | Get full text |
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