Method and system for transmitting data in a motor vehicle

• US 9,356,742 B2
• Filed: 03/30/2012
• Issued: 05/31/2016
• Est. Priority Date: 06/30/2011
• Status: Active Grant

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: Menzel, Marc, Staehlin, Ulrich
• Primary Examiner(s): Dsouza, Adolf
• Application Number:
  US14/129,002
• Publication Number:
  US 20140140374A1
• Time in Patent Office: 1,523 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 1/71632 Signal aspects H04B1/7172 and H04B1/7176 take precedence
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/06 using space diversity
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/22 using redundant apparatus to increase reliability
• CPC Class Codes: H04L 45/24 Multipath

Abstract

A method and a system are provided for transmitting data in a motor vehicle by wireless communication. The data from a first transmitting data node is divided, transmitted to a second receiving data node via at least two different communication routes, and reassembled upon being received. Redundant data is generated from the data to be transmitted, the redundant data allowing a reconstruction of the data to be transmitted in the event that a communication route fails. The redundant data and the data to be transmitted are transmitted via the different communication routes.

Claims

1. A method for transmitting data in a motor vehicle by wireless communication over a network having a plurality of nodes, the method comprising:

dividing data from a first transmitting data node (2);

transmitting, via at least two different communication routes (a, b, c), the divided data to a second receiving data node (3);

reassembling, upon reception, the transmitted divided data;

generating, of data (6, 6a, 6b, 6c) to be transmitted, redundant data (7, 7a, 7b) which facilitate reconstruction of the data (6, 6a, 6b, 6c) to be transmitted in the case of a failure of a communication route (a, b, c); and

transmitting the redundant data (7, 7a, 7b) and the data (6, 6a, 6b, 6c) to be transmitted via the different communication routes,

wherein;

selection of the communication routes is carried out by a combination of;

(a) static route selection, and

(b) restricted dynamic route selection, in which dynamic selection of only a predetermined number of the data nodes is permitted,

each of the plurality of nodes is aware of its position within the motor vehicle, and

the redundant data (7a, 7b) are formed by a logical operation on different parts of the data (6a, 6b, 6c) to be transmitted, weighting between achievable redundancy and transmission speed being adapted by specifying the degree of redundancy.

2. The method as claimed in claim 1, wherein the redundant data (7) are a copy of the data (6) to be transmitted and the redundant data (7) and the data (6) to be transmitted are transmitted via different communication routes (a, b, c).

3. The method as claimed in claim 1, wherein the data (6a, 6b, 6c) to be transmitted are divided and different communication routes (a, b, c) are used for different parts of the data (6a, 6b, 6c) to be transmitted.

4. The method as claimed in claim 3, wherein the number of different parts of the data (6a, 6b, 6c) reconstructable by the redundant data (7a, 7b) is a predeterminable number.

5. The method as claimed in claim 1, wherein the data (6, 6a, 6b, 6c) to be transmitted and the redundant data (7 ,7a, 7b) are transmitted in each case in data packets, the redundant data (7 ,7a, 7b) being formed from the data packets of the data (6, 6a, 6b, 6c) to be transmitted.

6. The method as claimed in claim 1, wherein the wireless communication is an ultra-wide-band communication.

7. A system for transmitting data in a motor vehicle by wireless communication over a network having a plurality of nodes, comprising a first transmitting data node (2) and a second receiving data node (3) and at least two different communication routes (a, b, c) for transmitting data between the first and the second data node (2, 3), the first data node (2) and the second data node (3) in each case having a computing unit configured for performing a transmission of data, wherein the computing unit of the first data node (2) and the computing unit of the second data node (3) is configured to perform the method as claimed in claim 1.