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    • 3. 发明公开
    • COMMUNICATION APPARATUS FOR ROLLING STOCK
    • KOMMUNIKATIONSGERÄTFÜRSCHIENENHFAHRZEUGE
    • EP2139171A1
    • 2009-12-30
    • EP08722292.3
    • 2008-03-17
    • Mitsubishi Electric Corporation
    • TAKEYAMA, MasayukiTATSUMI, ShogoYOSHIDA, Minoru
    • H04L12/40H04L12/46
    • H04L12/4625H04L49/35H04L49/351H04L49/602H04L67/12H04L2012/40293
    • A railway-train communication apparatus provided in a railway train secures the adaptability to a transmission path having low signal quality and improves the certainty of data transmission. The railway-train communication apparatus includes a node device 21, which includes converters 31-1 and 31-2 that perform a mutual signal conversion between an HDLC signal flowing through an inter-car network constructed between cars of the railway train and an Ethernet (registered trademark) signal flowing through an in-car network constructed in each of the cars and switching hubs 32 arranged between the converters 31-1 and 31-2 and for respectively connecting the converters 31-1 and 31-2, and network controllers 22-1 and 22-2 that are connected to the switching hubs 32.
    • 铁路列车中提供的铁路列车通信装置确保对具有低信号质量的传输路径的适应性,并提高数据传输的确定性。 铁路列车通信装置包括节点装置21,其包括转换器31-1和31-2,转换器31-1和31-2在流经在铁路车辆的车厢之间的车间网络和以太网之间的HDLC信号之间进行相互信号转换( 注册商标)信号流过构成在每个轿厢中的车载网络和布置在转换器31-1和31-2之间的交换集线器32,并且用于分别连接转换器31-1和31-2以及网络控制器22 -1和22-2连接到交换集线器32。