DELAY SYSTEM, DELAY DEVICE AND COMMUNICATION DEVICE CONSTITUTING DELAY SYSTEM

• US 20130151660A1
• Filed: 12/06/2012
• Published: 06/13/2013
• Est. Priority Date: 12/07/2011
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Kishigami, Tomohisa, Imai, Yasumasa, Takai, Yoshinori, Fujiki, Kouji
• Granted Patent: US 9,386,070 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

A delay system which has a communications device connected to a communications network and a relay device which is connected between the communications network ad an external device. The relay device is configured to divide data received from the external device into a plurality of data fragments each containing divided data, and send a sequence of messages, the messages corresponding to the respective divided data and dummy messages being included in the sequence of messages according to a communications rule. The communications device is configured to reconstitute the data from the external device on the basis of the message group from the relay device according to the communications rule.

Claims

1. A relay system comprising:

a communications device connected to a communications network; and

a relay device connected between the communications network and an external device,

wherein

the relay device is configured to divide data received from the external device into, a plurality of data fragments each containing divided data, and send a sequence of messages, the messages corresponding to the respective divided data and dummy messages being included in the sequence of messages according to a communications rule; and

the communications device is configured to reconstitute the data from the external device on the basis of the message group from the relay device according to the communications rule.

2. The relay system according to claim 1, wherein the communications rule is predetermined between the communications device and the delay device.

3. The relay system according to claim 1, wherein

the relay device and the communications device are configured to negotiate the communications rule before the relay device sending the sequence of messages.

4. The relay system according to claim 1, wherein

the relay device and the communications device are configured to use the communications rule defining the order of the messages corresponding to the divided data in the sequence of messages.

5. The relay system according to claim 1, wherein

the relay device is configured to generate the message including identification data;

and

the relay device and the communications device are configured to use the communications rule defining the identification data of the messages corresponding to the divided data.

6. The relay system according to claim 1, wherein

the relay device is configured to change the order of the divided data, and send the sequence of the messages including the messages corresponding to the divided data whose order is changed.

7. The relay system according to claim 1, wherein

the communications network is built in vehicles.

8. A relay device constituting the relay system according to claim 1.

9. A communication device constituting the relay system according to claim 1.