Diagnostic tool for metrology errors caused by communication activities

• US 8,719,681 B2
• Filed: 09/14/2011
• Issued: 05/06/2014
• Est. Priority Date: 09/14/2011
• Status: Expired due to Fees

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Chamarti, Subramanyam Satyasurya, Tomson, Bruce Joni, Glazebrook, Michael George, Shill, Scott Michael
• Primary Examiner(s): Alphonse, Fritz
• Application Number:
  US13/232,235
• Publication Number:
  US 20130067299A1
• Time in Patent Office: 965 Days
• Field of Search: 714/799, 714/758, 714/768, 714/786, 714/821, 714/746
• US Class Current: 714/799
• CPC Class Codes: G01F 15/063 using electrical means
• CPC Class Codes: H04L 12/413 with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
• CPC Class Codes: H04L 2012/40228 Modbus

Abstract

Described herein are embodiments of methods and systems for detecting communications of a first meter board by a second meter board and correlating the time and duration of the communications with metrology data gathered during that time. In accordance with one aspect, a method is provided for diagnosing metrology errors caused by communication activities of a meter board. In one embodiment, the method includes: receiving a signal, wherein the signal indicates a presence of communication activities between a first processor of a meter and another device over a network; recording a time of receipt and duration of the communication activities between the first processor of the meter and another device over the network; and correlating the time and duration of the communication activities between the first processor of the meter and another device over the network with metrology data of the meter measured at the same time and duration.

Claims

1. A method comprising:

receiving a signal via a second processor of a meter, wherein the signal indicates a presence of communication activities between a first processor of the meter and another device over a network;

recording a time of receipt and duration of the communication activities via the second processor between the first processor of the meter and the other device over the network; and

correlating the time and duration of the communication activities via the second processor between the first processor of the meter and the other device over the network with metrology data of the meter measured at the same time and duration.

2. The method of claim 1, wherein correlating the time and duration of the communication activities between the first processor of the meter and the other device over the network with metrology data of the meter measured at the same time and duration comprises correlating the time and duration of the communication activities with any errors in the metrology data measured at the same time and duration.

3. The method of claim 2, wherein the errors in the metrology data measured at the same time and duration comprises one or more of creep test failures, inaccuracy caused by ground plane voltage rise of the meter, EEPROM or system checking errors, or inter-processor communication failures.

4. The method of claim 2, wherein determining, from the signal, the type for the communication activities between the first processor and the other device over the network comprises determining whether the type for the communication activities is one of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth®

communication, TCP/IP, wireless TCP/IP, or ModBus®

.

5. The method of claim 1, further comprising determining, from the signal, a type for the communication activities between the first processor and the other device over the network.

6. The method of claim 5, further comprising providing an output that indicates the type for the communication activities between the first processor and the other device.

7. The method of claim 6, wherein the output is used to drive a display to indicate the type for the communication activities between the first processor and the other device.

8. The method of claim 7, wherein the display comprises one or more of a light-emitting diode (LED) or a liquid-crystal display (LCD).

9. The method of claim 1, wherein the signal comprises a wave form signal.

10. The method of claim 9, wherein the wave form signal comprises a pulse-width modulated signal such that the width of the pulse indicates the type for the communication activities between the first processor and the other device.

11. The method of claim 1, wherein the first processor comprises a processor for an advanced metering infrastructure (AMI) or automatic meter reading (AMR) board of a meter.

12. The method of claim 1, wherein the network comprises an advanced metering infrastructure (AMI) network.

13. The method of claim 1, wherein the network comprises a home-area network (HAN).

14. The method of claim 1, wherein the second processor comprises a processor for a metrology and data manager board of the meter.

15. The method of claim 1, wherein the signal is discontinued when the communication activities between the first processor and the other device end.

16. The method of claim 1, wherein the other device comprises a server.

17. The method of claim 1, wherein the other device comprises a smart appliance.

18. A method comprising:

initiating communication activities via a first processor of a meter between the meter and a device over a network;

providing a separate signal via the first processor, wherein the separate signal indicates a presence of the communication activities between the meter and the device over the network;

recording a time of initiation and duration of the communication activities via the first processor between the meter and the device over the network; and

correlating the time and duration of the communication activities via the first processor between the meter and the device over the network with metrology data of the meter measured at the same time and duration.

19. The method of claim 18, wherein correlating the time and duration of the communication activities between the meter and the other device over the network with metrology data of the meter measured at the same time and duration comprises correlating the time and duration of the communication activities with any errors in the metrology data measured at the same time and duration.

20. The method of claim 19, wherein the errors in the metrology data measured at the same time and duration comprise one or more of creep test failures, inaccuracy caused by ground plane voltage rise of the meter, EEPROM or system checking errors, or inter-processor communication failures.

21. The method of claim 18, wherein the signal is discontinued when communication activities with the device end.

22. The method of claim 18, further comprising determining from the signal, a type for the communication activities with the device over the network.

23. The method of claim 22, wherein determining from the signal, the type for the communication activities with the device over the network comprises determining whether the type for the communication activities is one of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth®

communication, TCP/IP, wireless TCP/IP, or ModBus®

.

24. The method of claim 22, further comprising providing an output that indicates the type for the communication activities with the device.

25. The method of claim 24, wherein the output is used to drive a display to indicate the type for the communication activities with the device.

26. The method of claim 25, wherein the display comprises one or more of a light-emitting diode (LED) or a liquid-crystal display (LCD).

27. The method of claim 18, wherein the signal comprises a wave form signal.

28. The method of claim 27, wherein the wave form signal comprises a pulse-width modulated signal such that the width of the pulse indicates the type for the communication with the device over the network.

29. The method of claim 28, wherein the second processor comprises a processor for an advanced metering infrastructure (AMI) or automatic meter reading (AMR) board of the meter.

30. The method of claim 18, wherein the network comprises an advanced metering infrastructure (AMI) network.

31. The method of claim 18, wherein the network comprises a home-area network (HAN).

32. The method of claim 18, wherein providing the separate signal, wherein the separate signal indicates a presence of the communication activities with the device over the network comprises a second processor providing the signal.

33. The method of claim 32, wherein the second processor provides the separate signal to the first processor and the first processor comprises a processor for a metrology and data manager board of the meter.

34. The method of claim 32, wherein initiating communication activities with the device over the network comprises the second processor of the meter initiating communication activities with the device over the network.

35. The method of claim 18, wherein the device comprises a server.

36. The method of claim 18, wherein the device comprises a smart appliance.

37. A system comprised of:

a first board, wherein the first board is comprised of a first processor and a communication interface operably connected with the first processor;

a second board, wherein the second board is comprised of a second processor; and

an interface port, wherein the interface port connects the first board and the second board,

wherein the first processor configured to;

initiate communication activities with a device over a network using the communication interface; and

provide a separate signal to the second board using the interface port, wherein the separate signal indicates a presence of the communication activities between the first board and the device over the network, and

wherein the second processor configured to;

receive the signal from the first board using the interface port, wherein the signal indicates the presence of communication activities between the first board and the device over the network;

record a time of receipt of the signal and duration of the communication activities between the first processor and the device over the network; and

correlate the time and duration of the communication activities between the first processor and the device over the network with metrology data received by the second processor at the same time and duration.

38. The system of claim 37, wherein correlating the time and duration of the communication activities between the first processor and the device over the network with metrology data received by the second processor at the same time and duration comprises correlating the time and duration of the communication activities with any errors in the metrology data measured at the same time and duration.

39. The system of claim 38, wherein the errors in the metrology data measured at the same time and duration comprise one or more of creep test failures, inaccuracy caused by ground plane voltage rise of the meter, EEPROM or system checking errors, or inter-processor communication failures.

40. The system of claim 37, wherein the second processor is further configured to determine, from the signal, a type for the communication activities between the first processor and the other device over the network.

41. The system of claim 40, wherein the second processor configured to determine, from the signal, the type for the communication activities between the first processor and the other device over the network comprises the second processor configured to determine whether the type for the communication activities is one of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth®

communication, TCP/IP, wireless TCP/IP, or ModBus®

.

42. The system of claim 40, wherein the second processor is further configured to provide an output that indicates the type for the communication activities between the first processor and the other device.

43. The system of claim 42, further comprising a display, wherein the output is used to drive the display to indicate the type for the communication activities between the first processor and the other device.

44. The system of claim 43, wherein the display comprises one or more of a light-emitting diode (LED) or a liquid-crystal display (LCD).

45. The system of claim 37, wherein the separate signal comprises a wave form signal.

46. The system of claim 45, wherein the wave form signal comprises a pulse-width modulated signal such that the width of the pulse indicates the type for the communication activities between the first processor and the other device over the network.

47. The system of claim 37, wherein the first processor comprises a processor for an advanced metering infrastructure (AMI) or automatic meter reading (AMR) board of a meter.

48. The system of claim 37, wherein the network comprises an advanced metering infrastructure (AMI) network.

49. The system of claim 37, wherein the network comprises a home-area network (HAN).

50. The system of claim 37, wherein the second processor comprises a processor for a metrology and data manager board of a meter.

51. The system of claim 37, wherein the separate signal is discontinued when the communication activities between the first processor and the other device end.

52. The system of claim 37, wherein the interface port comprises a 12-pin connector.

53. The system of claim 52, wherein the separate signal is provided to the second processor on pin 12 of the 12-pin connector.

54. The system of claim 37, wherein the first processor comprises an 8, 16 or 32-bit processor.

55. The system of claim 37, wherein the second processor comprises an 8, 16 or 32-bit processor.

56. The system of claim 37, wherein the device comprises a server.

57. The system of claim 37, wherein the device comprises a smart appliance.