公开(公告)号：JP2011249924A

公开(公告)日：2011-12-08

申请号：JP2010118518

申请日：2010-05-24

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： GOTO HIDEKI ,  FUKUNAGA TAKESHI

IPC: H04L12/28

Abstract: PROBLEM TO BE SOLVED: To provide a communication system which is capable of automatically realizing network configuration in order to flexibly respond to a change in LAN configuration.SOLUTION: A representative communication device sends a message for LAN configuration realization to its own all ports (step S1) and realizes existence of another representative communication device of another group and a connection port based on a message received from another representative communication device (step S2). On the other hand, the representative communication device also receives a message from a slave communication device in its group (step S3), and updates a group list (step S4). The representative communication device determines whether another representative communication device in another group and the slave communication device in its group are connected to the same network based on a reception result (step S5).

Abstract translation: 要解决的问题：提供能够自动实现网络配置以灵活地响应LAN配置的变化的通信系统。 解决方案：代表性通信设备向其自己的所有端口发送用于LAN配置实现的消息（步骤S1），并且基于从另一个代表性通信设备接收的消息来实现另一组和另一个连接端口的另一个代表性通信设备的存在 （步骤S2）。 另一方面，代表性通信装置也从其组中的从通信装置接收消息（步骤S3），并更新组列表（步骤S4）。 代表通信装置基于接收结果确定另一组中的另一代表性通信设备和其组中的从通信设备是否基于接收结果连接到同一网络（步骤S5）。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011160209A

公开(公告)日：2011-08-18

申请号：JP2010020392

申请日：2010-02-01

Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

Inventor： GOTO HIDEKI ,  FUKUNAGA TAKESHI

IPC: H04L12/46 ,  H04L29/06

Abstract: PROBLEM TO BE SOLVED: To provide a communication system which can reduce an influence given on the whole communication system by the change of structure of data to be transmitted by a part of devices, and a relay connection unit and a communication method. SOLUTION: In the communication system with an ECU 3 which relays messages to be transmitted from ECUs 1, 2 to an ECU 4, the data structure storage part 302 of the ECU 3 stores the data structure of a message M1 transmitted from the ECU 1 as data structure of a standard message, and the message transfer part 301 of the ECU 3 transfers, when a message M1' of data structure different from that of the stored standard message is transmitted from the ECU 1, the message M1 of the data structure of the standard message and the message M1' to the ECU 4. Thus, the ECU 4 can also receive the message M1 of the same data structure of the standard message as that before change, and receive the message M1 without the need of changing specifications. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够通过改变要由一部分设备发送的数据的结构，以及中继连接单元和通信方法来减少对整个通信系统的影响的通信系统。 解决方案：在具有ECU 3的通信系统中，ECU 3将从ECU1,2发送的消息中继到ECU4，ECU3的数据结构存储部302存储从ECU1发送的消息M1的数据结构 ECU1作为标准消息的数据结构，并且当从ECU 1发送与存储的标准消息的数据结构不同的数据结构的消息M1'时，ECU 3的消息传送部301传送消息M1 标准消息的数据结构和消息M1'发送到ECU 4.因此，ECU4还可以接收与改变之前的标准消息相同的数据结构的消息M1，并且接收消息M1而不需要 改变规格。 版权所有（C）2011，JPO＆INPIT