Static ring network for vehicle communications

• US 9,077,641 B2
• Filed: 05/14/2012
• Issued: 07/07/2015
• Est. Priority Date: 05/15/2011
• Status: Expired due to Fees

• Current Assignee: Orbit Communication
• Original Assignee: Orbit Communication Systems Ltd.
• Inventors: Hashin, Eran, Shabirow, Erez, Shabbat, Eitan, Reich, Ofer
• Primary Examiner(s): Mejia, Anthony
• Application Number:
  US13/470,367
• Publication Number:
  US 20120290692A1
• Time in Patent Office: 1,149 Days
• Field of Search: 709/200, 709/220, 709/223, 709/251
• US Class Current: 1/1
• CPC Class Codes: H04L 12/437 Ring fault isolation or reconfiguration for SDH/SONET ring networks H04J3/085
• CPC Class Codes: H04L 12/4637 Interconnected ring systems
• CPC Class Codes: H04L 2012/4028 the transportation system being an aircraft
• CPC Class Codes: H04L 41/145 involving simulating, designing, planning or modelling of a network

Abstract

A method for operating a ring network includes the steps of configuring the ring network with static configuration information and then deterministically exchanging operational data between a plurality of nodes on the ring network, while operating the ring network in accordance with the static configuration information. This system facilitates communications that meet the high reliability and performance requirements of vehicle communications, in particular in aircraft data networks (ADNs), while reducing the cost, weight, and complexity of conventional implementations.

Claims

1. A method comprising the steps of:

operating a ring network by

(a) configuring the ring network with static configuration information; and

(b) exchanging operational data deterministically between a plurality of nodes on the ring network while operating the ring network in accordance with said static configuration information,

wherein exchanging operational data deterministically includes guaranteeing a bandwidth, a latency, and jitter of each logical communication channel with traffic flow control

wherein at least a portion of said static configuration information is for guaranteeing quality of service (QoS) on the ring network, and

wherein at least a portion of said static configuration information is stored on each of said nodes.

2. The method of claim 1 further comprising the step of:

(c) generating said static configuration information by simulating offline the networking requirements of the ring network.

3. The method of claim 1 wherein said exchanging operational data includes transmitting simultaneously said operational data between said nodes in two opposite directions.

4. The method of claim 1 wherein operating the ring network includes each of said nodes using said static configuration information to limit operation of one or more services running on said nodes.

5. The method of claim 4 wherein limiting operation of one or more services includes a limitation selected from the group consisting of:

(a) bandwidth available to said services; and

(b) quality of service (QoS) for said services.

6. The method of claim 1 wherein said exchanging operational data is terminated at or before said operational data is received by one of said nodes that originated said operational data.

7. The method of claim 1 wherein said exchanging operational data is terminated by one of said nodes if said operational data is associated with that node'"'"'s address on the ring network.

8. The method of claim 1 wherein operation of said ring network is in accordance with Federal Aviation Administration (FAA) regulations.

9. The method of claim 1 wherein said static configuration information includes operating parameters for each of said nodes.

10. The method of claim 1 wherein each of said nodes is configured to inhibit changes to said static configuration information while operating said ring network.

13. The method of claim 1 wherein said plurality of nodes communicates via the ring network according to a protocol selected from the group consisting of:

(a) Ethernet protocol; and

(b) IEEE802.3.

14. The method of claim 1 wherein said ring network is a multiple-ring network.

15. The method of claim 1 wherein a configuration server is contacted by each of said nodes to read a centralized system configuration.

11. A system comprising:

(a) a static deterministic ring network including a plurality of devices operationally connected in a ring topology, wherein operational data is exchanged between said devices while operating said static deterministic ring network deterministically in accordance with static configuration information,

wherein operating deterministically includes guaranteeing a bandwidth, a latency, and jitter of each logical communication channel with traffic flow control

wherein at least a portion of said static configuration information is for guaranteeing quality of service (QoS) on the ring network, and

wherein at least a portion of said static configuration information is stored on each of said devices.

12. The system of claim 11 wherein said static configuration information includes operating parameters for each of said devices.

16. The system of claim 11 wherein each of said devices is configured to inhibit changes to said static configuration information while operating said ring network.

17. The system of claim 11 further comprising

(b) one or more configuration tables for storing said static configuration information.

18. The system of claim 17 wherein each of said devices includes a configuration table defining said static configuration information for each of said devices.

19. The system of claim 11 wherein said static configuration information includes a description of a path for said operational data to be exchanged between said devices and if said ring network is a multiple-ring network said static configuration information further includes a description of a path for said operational data to be exchanged between rings.

20. A vehicle comprising the static deterministic ring network of claim 11.

21. The vehicle of claim 20 wherein said vehicle is an airplane.

22. The system of claim 11 wherein said static deterministic ring network includes two rings for simultaneous transmission of said operational data between said devices in two opposite directions.

23. The system of claim 11 wherein each of said devices uses said static configuration information to limit operation of one or more services running on said devices.

24. The system of claim 11 wherein exchange of said operational data is terminated at or before said operational data is received by one of said devices that originated said operational data.

25. The system of claim 11 wherein exchange of said operational data is terminated by one of said devices if said operational data is associated with that devices address on said ring network.

26. The system of claim 11 wherein said plurality of devices communicates via the ring network according to a protocol selected from the group consisting of:

(a) Ethernet protocol; and

(b) IEEE802.3.

27. The system of claim 11 wherein said ring network is a multiple-ring network.

28. The system of claim 11 further including a configuration server, wherein said configuration server is contacted by each of said devices to read a centralized system configuration.