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1. (WO2017038188) GATEWAY DEVICE AND COMPUTING DEVICE

Pub. No.:    WO/2017/038188    International Application No.:    PCT/JP2016/066958
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Jun 08 01:59:59 CEST 2016
IPC: H04L 12/28
H04L 12/40
H04L 12/46
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: KATAOKA, Mikio
片岡 幹雄
KITANI, Mitsuhiro
木谷 光博
TERAOKA, Hidetoshi
寺岡 秀敏
OSADA, Kenichi
長田 健一
YAMAMOTO, Naoyuki
山本 尚幸
NAKAMURA, Masaaki
中村 正明
Title: GATEWAY DEVICE AND COMPUTING DEVICE
Abstract:
A gateway device connected to a higher-level network that uses a predetermined communication protocol, and to two or more lower-level networks that use a communication protocol different from that of the higher-level network, wherein higher-level data transmitted and received in the higher-level network comprises a header and a payload. The gateway device is provided with: a plurality of communication ports that are connected to the respective lower-level networks and receive lower-level data transmitted and received in the lower-level networks; a storage unit that associates and stores each of the plurality of communication ports and a source identifier; and a control unit that generates and transmits the higher-level data to the higher-level network, wherein the payload of the higher-level data generated by the control unit includes at least part of the lower-level data received by the communication port, and the header of the higher-level data generated by the control unit includes the source identifier associated with this communication port.