Energy meter with multiple protocols for communication with local and wide area networks

• US 5,923,269 A
• Filed: 08/07/1997
• Issued: 07/13/1999
• Est. Priority Date: 06/06/1997
• Status: Expired due to Term

• Current Assignee: Elster Electricity LLC (Honeywell International Inc.)
• Original Assignee: ABB Power T&D Limited (ABB Limited)
• Inventors: Shuey, Kenneth C., Mason, Robert T. Jr., Bragg, Arnold W., Lawrence, David C.
• Primary Examiner(s): Horabik, Michael
• Assistant Examiner(s): Wong, Albert K.
• Application Number:
  US08/908,728
• Time in Patent Office: 705 Days
• Field of Search: 340/870.02, 340/870.03, 340/870.01, 340/870.11, 340/825.06, 340/286.02, 340/870.07, 364/492, 364/132, 307/39, 307/29, 379/107, 379/106, 370/338
• US Class Current: 340/870.02
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 2213/10 using simultaneously two or more different transmission means
• 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 10/40 Display of information, e.g. of data or controls
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

A solid state electrical meter incorporates the ability to support two-way radio, dialback telephone and CEBus personal LAN. These three communications media require different protocols to meet their respective requirements. Embedding multiple protocols within the meter controller makes the device extremely flexible for current and future applications.

Claims

1. A utility meter, said utility meter communicatively coupled to an automatic meter reading (AMR) network and a local area network (LAN), said utility meter comprising:

(a) a radio frequency (RF) transceiver;

(b) a telephone modem;

(c) a LAN transceiver;

(d) a controller operatively coupled to said RF transceiver, modem and LAN transceiver;

(e) metering means operatively coupled to said controller; and

(f) a plurality of communications protocols for facilitating communications between said AMR network, LAN and utility meter;

whereby said utility meter is operable to function as a communications interface between said AMR network and said LAN.

2. A utility meter as recited in claim 1, wherein said LAN is a CEBus network.

3. A utility meter as recited in claim 1, wherein said LAN transceiver is a UART.

4. A utility meter as recited in claim 1, wherein said metering means comprises an electrical energy meter.

5. A utility meter as recited in claim 1, wherein said metering means comprises a gas meter.

6. A utility meter as recited in claim 1, wherein said metering means comprises a water meter.

7. A utility meter as recited in claim 1, wherein said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz.

8. A utility meter as recited in claim 1, wherein said controller is operative to communicate with said AMR network via said modem and/or said RF transceiver.

9. A utility meter as recited in claim 1, wherein said controller is operative to communicate with said LAN via said LAN transceiver.

10. A utility meter as recited in claim 1, wherein said LAN is a CEBus network;

said LAN transceiver comprises a UART;

said metering means comprises an electrical energy meter;

said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz;

said controller is operative to communicate with said AMR network via said modem and/or said RF transceiver; and

said controller is operative to communicate with said LAN via said LAN transceiver.

11. A utility meter, said utility meter communicatively coupled to an automatic meter reading (AMR) network and a local area network (LAN), said utility meter comprising:

(a) a radio frequency (RF) transceiver;

(b) a LAN transceiver;

(c) a controller operatively coupled to said RF transceiver and LAN transceiver;

(d) an electricity meter operatively coupled to said controller; and

(e) a plurality of communications protocols for facilitating communications between said AMR network, LAN and utility meter;

whereby said utility meter is operable to function as a communications interface between said AMR network and said LAN.

12. A utility meter as recited in claim 11, wherein said LAN is a CEBus network.

13. A utility meter as recited in claim 11, wherein said LAN transceiver is a UART.

14. A utility meter as recited in claim 11, further comprising a gas meter.

15. A utility meter as recited in claim 11, further comprising a water meter.

16. A utility meter as recited in claim 11, wherein said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz.

17. A utility meter as recited in claim 11, further comprising a modem, wherein said controller is operative to communicate with said AMR network via said modem and/or said RF transceiver.

18. A utility meter as recited in claim 11, wherein said controller is operative to communicate with said LAN via said LAN transceiver.

19. A utility meter as recited in claim 11, wherein said LAN is a CEBus network;

said LAN transceiver comprises a UART;

said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz; and

said controller is operative to communciate with said LAN via said LAN transceiver.

20. A utility meter as recited in claim 19, further comprising a modem, said controller being operative to communicate with said AMR network via said modem and/or said RF transceiver.

21. A utility meter, said utility meter communicatively coupled to an automatic meter reading (AMR) network and a local area network (LAN), said utility meter comprising:

(a) a radio frequency (RF) transceiver;

(b) a LAN transceiver;

(c) a controller operatively coupled to said RF transceiver and LAN transceiver; and

(d) a plurality of communications protocols for facilitating communications between said AMR network, LAN and utility meter;

whereby said utility meter is operable to function as a communications interface between said AMR network and said LAN.

22. A utility meter as recited in claim 21, wherein said LAN is a CEBus network.

23. A utility meter as recited in claim 21, wherein said LAN transceiver is a UART.

24. A utility meter as recited in claim 21, further comprising a gas meter.

25. A utility meter as recited in claim 21, further comprising a water meter.

26. A utility meter as recited in claim 21, wherein said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz.

27. A utility meter as recited in claim 21, further comprising a modem, wherein said controller is operative to communicate with said AMR network via said modem and/or said RF transceiver.

28. A utility meter as recited in claim 21, wherein said controller is operative to communicate with said LAN via said LAN transceiver.

29. A utility meter as recited in claim 21, wherein said LAN is a CEBus network;

said LAN transceiver comprises a UART;

said RF transceiver is operative to transmit and receive signals in a frequency band of about 902-928 MHz; and

said controller is operative to communicate with said LAN via said LAN transceiver.

30. A utility meter as recited in claim 29, further comprising a modem, said controller being operative to communicate with said AMR network via said modem and/or said RF transceiver.

31. A utility meter as recited in claim 21 wherein said plurality of communications protocols include a two-way RF protocol for facilitating communications between said AMR network and said utility meter.

32. A utility meter as recited in claim 30 wherein said plurality of communications protocols include a dialback telephone protocol for facilitating communications between said AMR network and said modem.

33. A utility meter as recited in claim 22 wherein said plurality of communications protocols include a CEBus protocol for facilitating communications between said LAN and said utility meter.