公开(公告)号：US20140025803A1

公开(公告)日：2014-01-23

申请号：US13943073

申请日：2013-07-16

Applicant: Thales Canada Inc.

Inventor： Ivan MacKenzie

IPC: H04L12/24

CPC classification number: H04L41/12 ,  B61L15/0036 ,  B61L15/0063 ,  B61L2027/005

Abstract: An intra-train network management system is provided for a train having up to three or more train units. Each train unit consists of two terminal cars and zero or more intermediate cars between the terminal cars. A communications interface unit in each terminal car establishes at least two separate networks within its associated train unit. Each network connects to distinct nodes within the train unit, and the separate networks of coupled train units are crossed over. A gateway associated with each terminal car links the respective networks of separate train units coupled into a train. The network management determines the network topology by sending global device discovery messages throughout the network, and local discovery messages within each train unit that cannot penetrate the gateway(s) associated with that train unit. The local discovery messages resolve the ambiguity created by the global messages.

Abstract translation: 为具有三个或更多个列车单元的列车提供列车内网络管理系统。 每个列车单元由两台终端车和终端车之间的零个或多个中间车组成。 每个终端车厢中的通信接口单元在其相关联的列车单元内建立至少两个分离的网络。 每个网络连接到列车单元内的不同节点，并且耦合列车单元的单独网络交叉。 与每个终端轿厢相关联的网关将耦合到列车中的单独列车单元的相应网络连接起来。 网络管理通过在整个网络中发送全局设备发现消息来确定网络拓扑，以及每个列车单元内不能穿过与该列车单元相关联的网关的本地发现消息。 本地发现消息解决了全局消息创建的歧义。