TOPOLOGY-INDEPENDENT DISSEMINATION OF ALARM DATA ABOVE NETWORK PRIORITY

• US 20150373735A1
• Filed: 06/19/2014
• Published: 12/24/2015
• Est. Priority Date: 06/19/2014
• Status: Abandoned Application

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: THUBERT, PASCAL, WETTERWALD, PATRICK, VASSEUR, JEAN-PHILIPPE, HUI, JONATHAN WING-YAN
• Application Number:
  US14/309,077
• Publication Number:
  US 20150373735A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 4/38 for collecting sensor information
• CPC Class Codes: H04W 4/90 Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

In one embodiment, a method comprises receiving, by a network device, a data packet specifying alarm data generated by a sensor node; and outputting, by the network device, the data packet at an alarm level priority that is higher than any network-level priority of any wireless routing topology.

Claims

1. A method comprising:

receiving, by a network device, a data packet specifying alarm data generated by a sensor node; and

outputting, by the network device, the data packet at an alarm level priority that is higher than any network-level priority of any wireless routing topology.

2. The method of claim 1, wherein the outputting includes transmitting the data packet independent of any wireless routing protocol or the any wireless routing topology.

3. The method of claim 1, wherein the alarm data specifies that the alarm data is generated in response to the sensor node detecting a critical life-threatening event.

4. The method of claim 1, wherein the outputting includes:

waiting a waiting interval of a first randomly selected time interval within a prescribed interval range to detect if the alarm data has been transmitted a prescribed number of times; and

at expiration of the first randomly selected time interval, transmitting the alarm data if and only if the alarm data was transmitted less than the prescribed number of times.

5. The method of claim 4, wherein the outputting further includes resetting the first randomly selected time interval to within a prescribed minimum interval range, less than the prescribed interval range, in response to detecting a newer version of the alarm data generated by the sensor node.

6. The method of claim 1, further comprising suppressing transmission of any network-level priority data packet until transmission of the data packet at the alarm level priority.

7. The method of claim 1, wherein the outputting includes suspending use of any wireless routing protocol or any wireless routing topology in response to the alarm data, and multicasting the data packet at the alarm level priority, according to a prescribed trickle protocol.

8. The method of claim 1, wherein each data packet containing alarm data includes a differentiating portion for distinguishing data packets containing alarm data, the outputting including selectively suppressing a second received data packet specifying alarm data based on the corresponding differentiating portion.

9. An apparatus comprising:

a device interface circuit configured for receiving a data packet specifying alarm data generated by a sensor node; and

a processor circuit configured for controlling outputting of the data packet at an alarm level priority that is higher than any network-level priority of any wireless routing topology.

10. The apparatus of claim 9, wherein the processor circuit is configured for transmitting the data packet independent of any wireless routing protocol or the any wireless routing topology.

11. The apparatus of claim 9, wherein the alarm data specifies that the alarm data is generated in response to the sensor node detecting a critical life-threatening event.

12. The apparatus of claim 9, wherein the processor circuit is configured for:

waiting a waiting interval of a first randomly selected time interval within a prescribed interval range to detect if the alarm data has been transmitted a prescribed number of times; and

at expiration of the first randomly selected time interval, transmitting the alarm data if and only if the alarm data was transmitted less than the prescribed number of times.

13. The apparatus of claim 12, wherein the processor circuit is configured for resetting the first randomly selected time interval to within a prescribed minimum interval range, less than the prescribed interval range, in response to detecting a newer version of the alarm data generated by the sensor node.

14. The apparatus of claim 9, wherein the processor circuit is configured for suppressing transmission of any network-level priority data packet until transmission of the data packet at the alarm level priority.

15. The apparatus of claim 9, wherein the processor circuit is configured for suspending use of any wireless routing protocol or any wireless routing topology in response to the alarm data, and multicasting the data packet at the alarm level priority, according to a prescribed trickle protocol.

16. The apparatus of claim 9, wherein each data packet containing alarm data includes a differentiating portion for distinguishing data packets containing alarm data, the processor circuit configured for selectively suppressing a second received data packet specifying alarm data based on the corresponding differentiating portion.

17. Logic encoded in one or more non-transitory tangible media for execution by a machine and when executed by the machine operable for:

receiving a data packet specifying alarm data generated by a sensor node; and

outputting the data packet at an alarm level priority that is higher than any network-level priority of any wireless routing topology.

18. The logic of claim 17, wherein the outputting includes transmitting the data packet independent of any wireless routing protocol or the any wireless routing topology.

19. The logic of claim 17, wherein the alarm data specifies that the alarm data is generated in response to the sensor node detecting a critical life-threatening event.

20. The logic of claim 17, wherein the outputting includes:

waiting a waiting interval of a first randomly selected time interval within a prescribed interval range to detect if the alarm data has been transmitted a prescribed number of times; and

at expiration of the first randomly selected time interval, transmitting the alarm data if and only if the alarm data was transmitted less than the prescribed number of times.

21. The logic of claim 20, wherein the outputting further includes resetting the first randomly selected time interval to within a prescribed minimum interval range, less than the prescribed interval range, in response to detecting a newer version of the alarm data generated by the sensor node.

22. The logic of claim 17, further comprising suppressing transmission of any network-level priority data packet until transmission of the data packet at the alarm level priority.

23. The logic of claim 17, wherein the outputting includes suspending use of any wireless routing protocol or any wireless routing topology in response to the alarm data, and multicasting the data packet at the alarm level priority, according to a prescribed trickle protocol.

24. The logic of claim 17, wherein each data packet containing alarm data includes a differentiating portion for distinguishing data packets containing alarm data, the outputting including selectively suppressing a second received data packet specifying alarm data based on the corresponding differentiating portion.