Internet protocol message routing over a wireless network of metering devices

• US 8,972,524 B2
• Filed: 03/22/2012
• Issued: 03/03/2015
• Est. Priority Date: 03/22/2011
• Status: Active Grant

• Current Assignee: Elster Solutions LLC (Honeywell International Inc.)
• Original Assignee: Elster Solutions LLC (Honeywell International Inc.)
• Inventors: Richeson, Keith D., Borleske, Andrew J., Mason, Robert T. Jr., Fonville, Phillip
• Primary Examiner(s): Nguyen, Dustin
• Application Number:
  US13/427,248
• Publication Number:
  US 20120246268A1
• Time in Patent Office: 1,076 Days
• Field of Search: 709/204, 709/244, 370/230.1, 370/241, 715/771, 340/657, 340/870.02, 702/188, 710/305
• US Class Current: 709/217
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: H04L 41/02 Standardisation; Integration
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

Methods and apparatus are provided for routing Internet Protocol (IP) messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol.

Claims

1. In an advanced metering infrastructure (AMI) system in which a server communicates with a wireless network of metering devices in accordance with a first communications protocol, each metering device defining a node on the wireless network and each node having a unique identifier on the wireless network, a method for communicating between the server and a network device that is designed to communicate in accordance with Internet Protocol (IP), wherein the first protocol of the wireless network of metering devices is a different protocol than the IP protocol, the method comprising:

connecting a communications interface of the network device to a corresponding communications interface on one of the nodes of the wireless network;

receiving at the server a message addressed to the network device, the message being formatted in accordance with the IP protocol;

determining the unique identifier of said one node on the wireless network to which the network device is connected;

using the determined unique identifier, transmitting a request to said one node via the wireless network and in accordance with the first communications protocol thereof, the command requesting that said one node write the IP message to a first ANSI C12.19-compliant table in a memory of the node, said one node thereafter retrieving the message from the first ANSI C12.19-compliant table and transmitting the message to the network device via its communications interface in accordance with the IP protocol, said one node storing a response to the message received from the network device in a second ANSI C12.19-compliant table in its memory;

transmitting a second request to said one node via the wireless network and in accordance with the first communications protocol thereof, the second command requesting that the response be read from the second ANSI C12.19-compliant table of said one node and transmitted to the server via the wireless network in accordance with the first communications protocol; and

receiving the response at the server.

2. The method recited in claim 1, wherein the first ANSI C12.19 table and the second ANSI C12.19 table comprise a same table.

3. The method recited in claim 1, wherein the network device comprises an IP-enabled edge device.

4. The method recited in claim 1, wherein the communications interface of the network device by which the network device is connected to the node of the wireless network comprises an Ethernet interface.

5. The method recited in claim 1, wherein the first and second C12.19-compliant tables to which the message is written and in which the response is stored comprise C12.19-compliant manufacturers tables.

6. The method recited in claim 1, wherein the wireless network is a wireless mesh network.

7. The method recited in claim 1, wherein the wireless network further comprises a plurality of collectors, each collector communicating with a subset of the metering devices via said wireless network, and wherein said server comprises a collector.

8. The method recited in claim 1, wherein the wireless network further comprises a plurality of collectors, each collector communicating with a subset of the metering devices via said wireless network and communicating with the server via a second network, the second network comprising a wide area network, the Internet, an intranet, a telephone network, a Frequency Hopping Spread Spectrum (FHSS) radio network, a mesh network, a Wi-Fi (802.11) network, a Wi-Max (802.16) network, a land line (POTS) network, a TCP/IP network, a W-WAN, a GPRS network, a CDMA network, or a Fiber network.

9. Apparatus for communicating between a server of an advanced metering infrastructure (AMI) system and a network device, the AMI system comprising a wireless network of metering devices that communicate in accordance with a first communications protocol, each metering device defining a node on the wireless network and each node having a unique identifier on the wireless network, the network device being adapted to communicate in accordance with the Internet Protocol (IP), the first communication protocol being different from the IP protocol, the apparatus comprising:

a first communications interface that operates in accordance with the first communications protocol to communicate via said wireless network of the AMI system;

a second communications interface adapted to enable the apparatus to be connected to a corresponding interface of the network device;

a memory containing one or more ANSI C12.19-compliant data tables; and

a processor that operates to;

communicate via the first communications interface and to establish the apparatus as a node of the wireless network;

receive, via the first communications interface in accordance with the first communications protocol, information encapsulated in a data format of the first communications protocol, the encapsulated information comprising an IP message formatted in accordance with the IP protocol and intended to be delivered to the network device;

extract the encapsulated IP message and write the IP message to a first one of the ANSI C12.19-compliant data tables in the memory of the apparatus;

transmit the IP message to the network device via the second communications interface in accordance with the IP protocol;

receive a response from the network device via the second communications interface in accordance with the IP protocol and write the response to a second one of the ANSI C12.19-compliant data tables in the memory; and

upon request, read the response from the second one of the ANSI C12.19-complaint data tables and transmit the response to the server over the wireless network via the first communications interface and in accordance with the first communications protocol.

10. The apparatus recited in claim 9, wherein the first ANSI C12.19 table and the second ANSI C12.19 table comprise a same table.

11. The apparatus recited in claim 9, wherein the network device comprises an IP-enabled edge device.

12. The apparatus recited in claim 9, wherein the second communications interface comprises an Ethernet interface.

13. The apparatus recited in claim 9, wherein the C12.19-compliant tables to which the message is written and in which the response is stored comprise C12.19-compliant manufacturers tables.

14. The apparatus recited in claim 9, wherein the wireless network comprises a wireless mesh network.

15. The apparatus recited in claim 9, wherein the wireless network further comprises a plurality of collectors, each collector communicating with a subset of the metering devices via said wireless network, and wherein said server comprises a collector.

16. The apparatus recited in claim 9, wherein the processor writes the IP message received by the apparatus via the first communications protocol to the first C12.19-compliant data table at an offset zero.

17. The apparatus recited in claim 9, wherein the information received via the first communications interface is received in the form of a plurality of data packets each formatted in accordance with the first communications protocol and each containing a different portion of the IP message intended to be delivered to the network device, and wherein the processor writes each portion of the message to the first C12.19-compliant data table.