Firmware download

• US 8,024,724 B2
• Filed: 08/29/2007
• Issued: 09/20/2011
• Est. Priority Date: 08/31/2006
• Status: Active Grant

• Current Assignee: Itron, Inc.
• Original Assignee: Itron, Inc.
• Inventors: Falendysz, Eugene L. Jr., McDonald, Brett D., Guthrie, Kevin D., Garrison Stuber, Michael T.
• Primary Examiner(s): Zhen; Li
• Assistant Examiner(s): COYER, RYAN D
• Application Number:
  US11/897,232
• Publication Number:
  US 20080092132A1
• Time in Patent Office: 1,483 Days
• Field of Search: 717/168, 717/172, 717/178, 713/176, 709/249, 709/252
• US Class Current: 717/172
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G06F 8/61 Installation
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/288 Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04Q 2209/60 for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• 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

Disclosed are apparatus and methodology subject matters for upgrading firmware associated with one or more metrology devices and adjunct devices. Methods are disclosed for broadcast transmission of portions of a firmware image file from an originating device over a network connecting multiple devices to be upgraded. The entire image file may be transmitted as segments to be assembled by the end devices. Broadcast segments not properly received from the originating device may be retried directly from the originating device or from neighbors correctly receiving the segment. A viral propagation methodology is disclosed as an alternative to portions of the broadcast methodology.

Claims

1. A method for downloading a firmware image through a network to a plurality of network devices, comprising:

establishing a network including a central facility and a plurality of end devices, wherein said plurality of end devices comprises metrology devices;

configuring the network for bi-directional communications between the central facility and each of the plurality of end devices in accordance with an open standard meter communication protocol;

notifying selected of the plurality of end device of a pending firmware image download;

broadcasting the firmware image download as a series of individual fragments;

configuring selected of the plurality of end devices to transmit previously received individual fragments of the firmware image to others of the plurality of end devices such that individual fragments of the firmware image are transmitted virally among portions of the network independently of any other network communication;

establishing point-to-point communications between the central facility and the selected plurality of end devices, wherein said establishing point-to-point communications occurs only after broadcasting the firmware image a predetermined number of times; and

determining whether all of the fragments of the firmware image download have been accurately received at each end device in the selected plurality of end devices, wherein if it is determined that at least one fragment was not accurately received by at least one of the selected plurality of end devices, retransmitting the firmware image to each end device that did not accurately receive the entire firmware image via the point-to-point communications established between the central facility and the selected plurality of end devices.

2. A method as in claim 1, wherein:

notifying comprises transmitting information from the central facility to selected of the plurality of end devices regarding an amount of data to be transmitted and a checksum for the data.

3. A method as in claim 1, wherein:

broadcasting comprises broadcasting the series of individual fragments independently of fragment sequence.

4. A method as in claim 1, further comprising configuring the network end devices to assemble the individual fragments in accordance with the original firmware image.

5. A method as in claim 1, wherein:

establishing a network further includes;

providing at least one cell relay; and

configuring the network such that bi-directional communication between the central facility and selected of the plurality of end devices passes through the at least one cell relay;

whereby bi-directional communication between the central facility and selected of the plurality of end devices is conducted by way of the cell relay while bi-directional communication between the central facility and others of the plurality of end devices is conducted directly.

6. A method as in claim 1, wherein:

said method further comprises configuring selected of the plurality of network end devices to relay bi-directional communications between the central facility and others of the plurality of network end devices.

7. A method as in claim 1, wherein:

notifying comprises notifying selected of the plurality of end devices of a pending firmware image download of a first type.

8. A method as in claim 7, wherein notifying further comprises:

notifying selected others of the plurality of end device of a pending firmware image download of a second type;

whereby different end devices requiring different firmware image types may receive appropriate firmware images by way of the same network.

9. A method as in claim 8, further comprising configuring selected of the plurality of network end devices to relay bi-directional communications between the central facility and others of the plurality of network end devices.

10. A method as in claim 9,

wherein individual fragments of a firmware image may be transmitted virally among portions of the network independently of the image type.

11. A method as in claim 9, further comprising:

providing at least one cell relay;

configuring the at least one cell relay to transmit previously received individual fragments of a firmware image to selected of the plurality of end devices;

whereby individual fragments of a firmware image may be transmitted virally among portions of the network independently of the image type.

12. A method as in claim 1, wherein establishing a network comprises:

establishing a network including a central facility comprising an update server and a collection engine;

wherein the plurality of end devices are configured to transmit acknowledgement of receipt of individual fragments as a portion of a response to an interrogation cycle from the collection engine.

13. An advanced metering system including an apparatus for upgrading firmware of one or more metrology devices and adjunct devices configured in common association, said system comprising:

a plurality of end devices, at least some of which end devices comprise metrology devices; and

a network including a central facility comprising an update server and a collection engine, said collection engine including an orchestration manager for distributing metrology device data communications functionality, and said network being configured for bi-directional communications between said central facility and each of said plurality of end devices in accordance with an open standard meter communication protocol, and configured so as to (A) notify selected of said plurality of said end devices of a pending firmware image download, (B) broadcast said firmware image download as a series of individual fragments, (C) configure selected of the plurality of end devices to transmit previously received individual fragments of the firmware image to others of the plurality of end devices such that individual fragments of the firmware image are transmitted virally among portions of the network independently of any other network communication, (D) establish point-to-point communications between said central facility and said selected plurality of said end devices, wherein said establishing point-to-point communications occurs only after broadcasting the firmware image a predetermined number of times, and (E) determine whether all of said individual fragments of said firmware image download have been accurately received at each end device in the selected plurality of end devices, wherein if it is determined that at least one fragment was not accurately received by at least one of the selected plurality of end devices, retransmitting the firmware image to each end device that did not accurately receive the entire firmware image via the point-to-point communications established between the central facility and the selected plurality of end devices.

14. An advanced metering system as in claim 13, wherein:

said collection engine is configured for conducting an interrogation cycle with said metrology devices; and

said metrology devices respectively comprise a plurality of utility meters configured to transmit acknowledgement of receipt of said individual fragments as a portion of a response to said interrogation cycle from said collection engine, and configured to assemble said individual fragments in accordance with said firmware image download.

15. An advanced metering system as in claim 13, further comprising at least one cell relay configured to transmit previously received individual fragments of said firmware image download to said selected of said plurality of said end devices.

16. An advanced metering system as in claim 13, wherein said orchestration manager is configured for distributing metrology device data communications functionality across multiple servers, and comprises:

a master relay configured to register and authenticate multiple communication nodes associated with one or more respective metrology devices and to assign communication functionality associated with said multiple communication nodes to a plurality of communication servers, each of which includes a meter communications host configured to send and receive network communications in accordance with the open standard meter communication protocol; and

a plurality of communication servers configured to communicate with at least a selected portion of said multiple communication nodes, each communication server configured to send and receive network communications and to acquire metrology data from said multiple communications nodes; and

wherein said multiple communication nodes associated with one or more respective metrology devices comprise at least one communication node comprising at least one cell relay operating on a radio network and at least one communication node comprising a communications link directly to an end point.

17. An advanced metering system as in claim 13, further comprising at least one cell relay, with said at least one cell relay and said network configured such that bi-directional communication between said central facility and selected of said plurality of said end devices passes through said at least one cell relay, whereby bi-directional communication between said central facility and said selected of said plurality of said end devices is conducted by way of said at least one cell relay while bi-directional communication between said central facility and others of said plurality of said end devices is conducted directly.