Endpoint classification and command processing

• US 8,242,887 B2
• Filed: 10/21/2009
• Issued: 08/14/2012
• Est. Priority Date: 04/20/2009
• Status: Active Grant

• Current Assignee: Itron, Inc.
• Original Assignee: Itron, Inc.
• Inventors: Cornwall, Mark K., Johnson, Matthew, Cahill-O'Brien, Barry
• Primary Examiner(s): Amrany, Adi
• Application Number:
  US12/603,043
• Publication Number:
  US 20100265096A1
• Time in Patent Office: 1,028 Days
• Field of Search: 340/9.14
• US Class Current: 340/9.14
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: G01D 4/006 Remote reading of utility meters to a non-fixed location, i.e. mobile location
• 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

Packet formats and related infrastructure for improved messaging and processing of commands in an AMR system are disclosed. In one embodiment, a method for identifying the features of an endpoint based on data encoded in a standard meter reading is provided. In this regard, the method includes receiving a standard meter reading having an endpoint type and subtype classification, wherein the subtype classification corresponds to a feature of the endpoint that may be re-configured. Once received, the standard metering reading is decoded. Then, the method identifies the classification of the endpoint with regard to type and subtype and determines whether the endpoint is capable of implementing a particular command.

Claims

1. A packet creation interface that implements a method operative to collect packet data for transmission from an endpoint in a standard meter reading, the method comprising:

receiving an interface call having parameters that identify a current consumption value and a pointer referencing a buffer memory space for temporary storage of packet data;

accepting an existing buffer memory space having a protocol ID value corresponding to a process for decoding the packet and a type/subtype value for classifying at least one feature of the endpoint;

retrieving one or more data items for temporary storage in the buffer memory space, the one or more data items including a serial number that uniquely identifies the endpoint; and

returning the pointer to the buffer memory space.

2. An interface as in claim 1, wherein the protocol ID value is a fixed length field within the packet data for transmission.

3. An interface as in claim 1, wherein the type/subtype value is a fixed length field within the packet data for transmission.

4. An interface as in claim 3, wherein the type/subtype value fixed length field corresponds to one eight bit byte wherein five bits designate a type value and the remaining three bits designate a subtype value.

5. An interface as in claim 1, wherein the created packet has a fixed length.

6. An interface is in claim 5, wherein the created packet has a total fixed length of 136 bits.

7. An interface as in claim 1, wherein the created packet includes a 16-bit cyclical redundancy check field.

8. An interface as in claim 1, wherein said interface is implemented in software stored in a memory device associated with an endpoint usable in an automatic meter reading network.