System for automated management of spontaneous node migration in a distributed fixed wireless network

• US 7,742,430 B2
• Filed: 09/24/2004
• Issued: 06/22/2010
• Est. Priority Date: 09/24/2004
• Status: Active Grant

• Current Assignee: Elster Electricity LLC (Honeywell International Inc.)
• Original Assignee: Elster Electricity LLC (Honeywell International Inc.)
• Inventors: Smith, Kathryn J., Nemecz, Susane K., Garianov, Alexei, Scoggins, Sean M., Rudran, Dileep, Christopher, Russell G.
• Primary Examiner(s): Moore; Ian N
• Application Number:
  US10/949,682
• Publication Number:
  US 20060072465A1
• Time in Patent Office: 2,097 Days
• Field of Search: 370/329, 370/339, 370/254, 370/331, 702/61, 702/62, 705/63, 705/412, 709/223, 709/218, 709/224, 455/436, 455/432.1, 455/432.2, 455/433, 455/434, 455/435.1, 455437-445, 455/449, 34087001-87044, 3408531-8564
• US Class Current: 370/254
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H04L 41/0853 by actively collecting configuration information or by backing up configuration information
• CPC Class Codes: H04L 41/0859 by keeping history of different configuration generations or by rolling back to previous configuration versions
• CPC Class Codes: H04M 11/002 with telemetering systems telemetering in general G08C
• CPC Class Codes: H04W 8/08 Mobility data transfer
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Methods and systems of managing node migration in a wireless network where nodes may spontaneously migrate from a first communication path to a second communication path. The system includes a first collector disposed within the first communication path and a second collector disposed within the second communication path, a network management server that determines a network state and maintains a database of the network state. When the network management server detects that a node has migrated from the first communication path to the second communication path, information associated with the node is retrieved from the first collector and downloaded to the second collector to ensure the proper operation of the node in the network.

Claims

1. A system for managing meters migrating from a first communication path to a second communication path in a wireless network, the system comprising:

a first collector and a plurality of meters that communicate wirelessly with said first collector disposed within said first communication path,

a second collector and a plurality of meters that communicate wirelessly with said second collector disposed within said second communication path,

wherein each meter has a communication path to a respective collector that is either direct or indirect through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and a respective collector defining a layout of the network;

a network management server that determines a network state; and

a network management system that maintains a database of said network state,

wherein when said network management server detects that a meter has migrated from said first communication path to said second communication path, information associated with said meter is retrieved from said network management server and downloaded to said second collector;

wherein said information associated with said meter comprises first collected data collected by said first collector from said meter;

wherein second collector data collected by the second collector from said meter is merged at the second collector with the first collected data, and

wherein said first collected data and said second collected data comprise metering information representative of usage of a service or commodity.

2. The system of claim 1, further comprising updating a current network state database and a historical network state database to reflect that said meter has migrated from said first communication path to said second communication path.

3. The system of claim 1, wherein said information associated with said meter comprises configuration information.

4. The system of claim 3, wherein said configuration information is downloaded to said second collector to determine operational characteristics of said meter within said second communication path.

5. The system of claim 1, wherein said information is removed from said first collector after being downloaded to said second collector.

6. A method of managing meters that spontaneously migrate among plural communication paths in a wireless network, the method comprising:

detecting a migration of a meter from a first communication path to a second communication path, wherein each said communication path comprises a collector and a plurality of meters that communicate wirelessly with their respective collector, each of the said meters having a wireless communication path to a respective collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and a respective collector defining a layout of the network;

updating a network state;

retrieving information associated with said meter from a global configuration database; and

downloading said information to a second collector in said second communication path;

wherein said information associated with said meter comprises first collected data collected by a first collector from said meter;

merging, at the second collector, second collector data collected by the second collector from said meter with the first collected data, and

wherein said first collected data and said second collected data comprise metering information representative of usage of a service or commodity.

7. The method of claim 6, further comprising:

updating a current network state database and a historical network state database to reflect that said meter has migrated from said first communication path to said second communication path.

8. The method of claim 6, further comprising:

configuring said meter in said second communication path in accordance with said information.

9. The method of claim 6, further comprising:

removing said information from a first collector in said first communication path after being downloaded to said collector.

10. A method for managing a spontaneous migration of a meter from a first collector in a first communication path to a second collector in a second communication path comprising:

detecting said spontaneous migration;

retrieving configuration information and first collected data collected by the first collector from said meter;

contacting said second collector and downloading said configuration information and said first collected data; and

merging at said second collector said first collected data with second collected data collected by the second collector from said meter;

wherein said first collected data and said second collected data comprise metering information representative of usage of a service or commodity; and

wherein each said communication path comprises a collector and a plurality of meters that communicate wirelessly with their respective collector, each of the meters having a wireless communication path to a respective collector that is either a direct path or an indirect path through one or more intermediate meters that serve as repeaters, the wireless communication paths between each meter and a respective collector defining a layout of the network.

11. The method of claim 10, further comprising:

updating a current network state database and a historical network state database to reflect that said meter has migrated from said first communication path to said second communication path.

12. The method of claim 11, further comprising:

removing said information and said first collected data from said first collector.

13. The method of claim 11, further comprising:

updating a data collection requirements server to reflect that said meter has migrated from said first communication path to said second communication path.

14. The method of claim 13, wherein data accessible to said data collection requirements server indicates what types of data said meter collects.

15. The method of claim 10, wherein said configuration information determines operating characteristics of said meter.