Method and system for a centralized vehicular electronics system utilizing ethernet with audio video bridging

• US 9,065,673 B2
• Filed: 08/21/2008
• Issued: 06/23/2015
• Est. Priority Date: 12/17/2007
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Diab, Wael William, Teener, Michael Johas, Kim, Yongbum
• Primary Examiner(s): Bruckart, Benjamin R
• Assistant Examiner(s): THOMAS, JASON M
• Application Number:
  US12/196,120
• Publication Number:
  US 20090158360A1
• Time in Patent Office: 2,497 Days
• Field of Search: 725/74, 725/75, 725/76, 725/95
• US Class Current: 1/1
• CPC Class Codes: H04L 12/40 Bus networks
• CPC Class Codes: H04L 12/40182 by using a plurality of communication lines
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/821 Prioritising resource allocation or reservation requests
• CPC Class Codes: H04L 67/1014 based on the content of a request

Abstract

Aspects of a method and system for a centralized vehicular electronics system utilizing Ethernet with audio video bridging are provided. In this regard, electronic devices in a vehicle may be communicatively coupled via one or more Ethernet links and information may be communicated between the electronic devices over the Ethernet link(s) utilizing audio video bridging. At least one of multimedia, control, diagnostic, and sensory information between the electronic devices. Accordingly, resources on the one or more Ethernet links may be reserved via AVB to give priority to one of multimedia, control, diagnostic, and sensory information. Information communicated between the devices may be secured utilizing MACsec and related protocols. The electronic devices may comprise two or more network ports and may be enabled to forward packets between the two or more ports. The Ethernet links may comprise optical and/or copper cabling.

Claims

1. A method for networking, the method comprising:

directly coupling first audio video bridging enabled equipment to each electronic device within a first group of two or more electronic devices in a vehicle via respective first Ethernet links;

directly coupling second audio video bridging enabled equipment to each electronic device within a second group of two or more electronic devices in the vehicle via respective second Ethernet links;

coupling said first audio video bridging equipment to said second audio video bridging equipment via one or more third Ethernet links; and

reserving resources on said one or more third Ethernet links utilizing said first and second audio video bridging equipment to enable information to be communicated between a first electronic device in the first group and a second electronic device in the second group and to give priority to mission critical electronic devices over non-mission critical electronic devices, at least one of said first and second groups including a mission critical electronic device, said mission critical electronic devices transmitting diagnostic information.

2. The method according to claim 1, comprising communicating at least one of multimedia, control, diagnostic, navigation and sensory information between said first electronic device and said second electronic device via said first and second audio video bridging equipment and said first, second and third Ethernet links.

3. The method according to claim 1, comprising securing said information utilizing MACsec.

4. The method according to claim 1, wherein said electronic devices comprise at least one of an optical drive, a digital media player, a terrestrial radio, a display, a speaker, a satellite radio, an audio amplifier, an image capture device, a navigation satellite system, a switch, a bridge, a router, and a diagnostic sensor or monitor.

5. The method according to claim 1, wherein at least one of said electronic devices comprises two or more network ports and is enabled to forward packets between said two or more ports.

6. The method according to claim 1, wherein said one or more third Ethernet links enable one or more redundant paths between said electronic devices in said vehicle.

7. The method according to claim 1, wherein said first and second electronic devices are enabled to communicate via a plurality of parallel physical channels in said one or more third Ethernet links, wherein a data rate on each said physical channel is inversely proportion to the number of said channels in said plurality of physical channels.

8. The method according to claim 1, wherein said first, second and third Ethernet links comprise optical and/or copper cabling.

9. The method according to claim 1, comprising encapsulating said information into one or more Ethernet packets, prior to said communicating via said one or more third Ethernet links.

10. The method according to claim 9, wherein said information is formatted according to HDMI, DisplayPort, and/or MPEG specifications.

11. A system for networking, the system comprising:

first and second audio/video bridging equipment for use in a vehicular electronics system, each of said first and second audio/video bridging equipment operable to;

directly couple, via respective first Ethernet links, to each electronic device within a respective group of electronic devices;

couple, via one or more second Ethernet links, to each other; and

reserve resources on said one or more second Ethernet links to enable information to be communicated between a first electronic device in a first group and a second electronic device in a second group and to give priority to mission critical electronic devices over non-mission critical electronic devices, at least one of said first and second groups including a mission critical electronic device, said mission critical electronic devices transmitting diagnostic information.

12. The system according to claim 11, wherein said first and second audio/video bridging equipment are operable to communicate at least one of multimedia, control, diagnostic, navigation and sensory information between said first and second electronic devices.

13. The system according to claim 11, wherein said first and second audio/video bridging equipment are operable to secure said information utilizing MACsec.

14. The system according to claim 11, wherein said electronic devices comprise at least one of an optical drive, a digital media player, a terrestrial radio, a display, a speaker, a satellite radio, an audio amplifier, an image capture device, a navigation satellite system, a switch, a bridge, a router, and a diagnostic sensor or monitor.

15. The system according to claim 11, wherein at least one of said electronic devices comprises two or more network ports and is enabled to forward packets between said two or more ports.

16. The system according to claim 11, wherein said one or more second Ethernet links enable one or more redundant paths between said electronic devices in said vehicle.

17. The system according to claim 11, wherein said electronic devices are enabled to communicate via a plurality of parallel physical channels in said one or more second Ethernet links, wherein a data rate on each said physical channel is inversely proportion to the number of said channels in said plurality of physical channels.

18. The system according to claim 11, wherein said first and second Ethernet links comprise optical and/or copper cabling.

19. The system according to claim 11, wherein said first and second audio/video bridging equipment are operable to encapsulate said information into one or more Ethernet packets, prior to said communication of said information via said one or more second Ethernet links.

20. The system according to claim 19, wherein said information is formatted according to HDMI, DisplayPort, and/or MPEG specifications.