Method and system for managing power consumption of a meter during communication activities

• US 10,198,017 B2
• Filed: 04/20/2015
• Issued: 02/05/2019
• Est. Priority Date: 09/14/2011
• Status: Active Grant

• Current Assignee: Aclara Meters LLC (Hubbell, Inc.)
• Original Assignee: Aclara Meters LLC (Hubbell, Inc.)
• Inventors: Chamarti, Subramanyam Satyasurya, Manoosingh, Lane Leslie, Tomson, Bruce Joni, Glazebrook, Michael George
• Primary Examiner(s): Huang, Miranda M
• Assistant Examiner(s): McMenemy, Brian T
• Application Number:
  US14/690,500
• Publication Number:
  US 20150227150A1
• Time in Patent Office: 1,387 Days
• CPC Class Codes: G01D 4/00 Tariff metering apparatus in taximeters G07B13/00; apparatus actuated by coins, cards or the like with meter-controlled dispensing of liquid, gas, or electricity G07F15/00
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04Q 2209/43 using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• 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

Abstract

Described herein are embodiments of methods and systems for detecting communications of a first meter board and using that detection as an indication to manage power consumption of the meter by a second meter board. In accordance with one aspect, a method is provided for detecting communications of a first meter board by a second meter board. In one embodiment, the method includes: receiving a signal, wherein the signal indicates a presence of communication activities between a first processor and another device over a network; and managing power consumption of the meter while the first processor is communicating with the other device over the network.

Claims

1. A utility meter for measuring an energy consumption of a utility service provided by a utility distribution system to an electrical load, the utility meter being an assembly of electronics components and the meter being coupleable to the electrical load and the utility distribution system for receiving the provided utility service and for providing utility load service to the electrical load, the utility meter comprising:

a utility service input terminal receiving the utility service from the coupled utility distribution system;

an electrical load output terminal providing utility load service to the coupled electrical load responsive to the received utility service;

a first board configured to perform communication functions of the utility meter and having an interface for communicating with an electrical load device and a separate interface for communicating over a communication network to a network device that is not an electrical load device, the first board including a first processor and the communication interface connected to the first processor and communicatively configured and coupleable over the communication network to the network device that is not the electrical load device;

a second board configured to perform metrology functions of the utility meter as a function of the received utility service by the utility service input terminal and the provided utility load service at the electrical load output terminal, the second board including a second processor and an electronic device providing utility meter operations, and the second board providing all electrical power to the electronic device thereon;

an interface port communicatively connecting the first board and the second board within the electronic assembly of the utility meter;

a local power supply of the assembly of the utility meter receiving power from an external power source and only providing local utility meter electronics with power including local power to the first board of the utility meter and to the second board of the utility meter, the local power supply of the utility meter assembly being an isolated power supply that is separate and isolated from the utility service provided by the utility distribution system including the utility service that is received at the utility service input terminal of the utility meter and that is provided to the utility load service by the electrical load output terminal of the utility meter through the utility meter to the electrical load for which the energy consumption is measured by the second board of the utility meter and being isolated from the electrical load to which the utility meter is providing utility service,

wherein the first processor of the first board is configured to

determine when the communication interface of the first board is currently communicating with the network device over the communication network and to determine a type of the current communication of the communication interface to the network device, the determined type of current communication of the communication interface being selected from the group consisting of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth®

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

;

and to provide an indicator signal to the second board via the interface port responsive to the determining of a currently occurring communication that includes an identification of the determined type of the current communication; and

wherein, responsive to receiving the indicator signal from the first board via the interface port, determining, from the received indicator signal, the current communication type as determined by the first processor, and responsive to the determined current communication type, reducing a power consumption of the electronic device of the second board as provided by the utility meter'"'"'s power to the second board.

2. The utility meter of claim 1, wherein the electronic device of the second board of the utility meter that receives power from the power supply of the utility meter and to which the power consumption is reduced, is a utility meter device selected from the group of utility meter devices consisting of one of a display, a meter input, a filtering component, a user input interface, a memory, and the second processor.

3. The utility meter of claim 1, wherein the first processor is configured to discontinue the providing of the indicator signal when the first processor determines that the communication between the first board and the network device over the communication network is no longer currently occurring.

4. The utility meter of claim 1, wherein the indicator signal is a pulse-width modulated signal, the first processor being configured to adjust a width of pulses pulse-width modulated signal to reflect the determined type of current communication and the second processor is configured to determine the current communication type based on the pulse-width of the received indicator signal.

5. The utility meter of claim 1, wherein the second board is further configured to perform data management functions.

12. The utility meter of claim 1 wherein the second board includes two or more different electronic devices and wherein the second processor is configured to select one or more of the two or more different electronic devices for reducing the power consumption thereof, as a function of the determined type of current communication.

6. A method of operating a utility meter measuring an energy consumption of a utility service provided by a utility distribution system to an electrical load, the utility meter being an assembly of electronics components and the meter being coupleable to the electrical load and the utility distribution system for receiving the provided utility service and for providing utility load service to the electrical load, the method of operating the utility meter comprising:

receiving at a utility service input terminal the utility service from the coupled utility distribution system;

providing at an electrical load output terminal utility load service to the coupled electrical load responsive to the received utility service;

providing local power from a local power supply of the assembly of the utility meter receiving power from an external power source and only to the utility meter including providing local power to a first board and second board of the utility meter for operation thereof, the local power supply of the utility meter assembly being an isolated power supply that is separate and isolated from the utility service provided by the utility distribution system including the utility service that is received at the utility service input terminal of the utility meter and that is provided to the utility load service by the electrical load output terminal of the utility meter through the utility meter to the electrical load for which the energy consumption is measured by the second board of the utility meter and being isolated from the electrical load to which the utility meter is providing utility service,

providing an interface port for communicatively coupling the first board to the second board within the electronic assembly of the utility meter;

in which the first board is configured to perform communication functions of the utility meter having an interface for communicating with an electrical load device and a separate interface for communicating over a communication network to a network device that is not an electrical load device, including a first processor and the communication interface configured for communications over the communication network to the electrical device that is not the electrical load device and being connected to the first processor communicatively coupleable over the communication network to the network device that is not the electrical load device;

communicating, by the first processor of the utility meter, with the network device over the communication network using the communication interface;

determining when the communication interface is currently communicating with the network device over the communication network, and

determining a type of the communication of the current communication interface to the network device, the determined type of current communication of the communication interface being selected from the group consisting of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth®

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

, wherein the providing of the indicator signal includes providing an identification within the provided indicator signal of the determined type of current communication of the communication interface to the network device;

providing, by the first processor, an indicator signal to the second board via an interface port, responsive to the determining, the indicator signal indicating an occurrence of a current communication between the first board and the network device over the communication network,

in the second board having a second processor and an electronic device that is configured to perform metrology functions of the utility meter as a function of the received utility service by the utility service input terminal and the provided utility load service at the electrical load output terminal;

performing the metrology functions of the utility meter;

receiving the provided indicator signal from the first board;

determining a current communication type as determined by the first processor based on the received indicator signal, and wherein the reducing of power consumption of the electronic device of the second board is responsive to the determined current communication type; and

reducing, by the second processor, responsive to the received indicator signal and the determined current communication type, a power consumption of the electronic device of the second board as provided by the utility meter'"'"'s power to the second board.

7. The method of claim 6, wherein the electronic device of the second board of the utility meter to which power consumption from the power supply is reduced is a utility meter device selected from the group of utility meter devices consisting of one of a display, a meter input, a filtering component, a user input interface, a memory, and the second processor.

8. The method of claim 6, comprising discontinuing, by the first processor, the indicator signal when the determining determines the communication between the first board and the network device over the communication network is no longer currently occurring.

9. The method of claim 6, wherein the indicator signal is a pulse-width modulated signal, in the first processor, adjusting a width of pulses of a pulse-width modulated signal reflecting the determined type of current communication, and determining, by the second processor, the current communication type is based on the pulse-width of the received indicator signal.

10. The method of claim 6, wherein the second board is further configured to perform data management functions.

11. The method of claim 6, wherein the first board and the second board are separate electronic boards within an assembly of electronics components forming the operational utility meter.

13. A utility meter for measuring an energy consumption of a utility service provided by a utility distribution system to an electrical load, the utility meter being an assembly of electronics components and the meter being coupleable to the electrical load and the utility distribution system for receiving the provided utility service and for providing utility load service to the electrical load, the utility meter comprising:

a utility service input terminal receiving the utility service from the coupled utility distribution system;

an electrical load output terminal providing utility load service to the coupled electrical load responsive to the received utility service;

a first board configured to perform communication functions of the utility meter and having an interface for communicating with an electrical load device and a separate interface for communicating over a communication network to a network device that is not an electrical load device, the first board including a first processor and the communication interface connected to the first processor and communicatively configured and coupleable over the communication network to the network device that is not the electrical load device;

a second board configured to perform metrology functions of the utility meter as a function of the received utility service by the utility service input terminal and the provided utility load service at the electrical load output terminal, the second board including a second processor and an electronic device providing utility meter operations, and the second board providing all electrical power to the electronic device thereon;

an interface port communicatively connecting the first board and the second board within the electronic assembly of the utility meter;

a local power supply of the assembly of the utility meter receiving power from an external power source and only providing local utility meter electronics with power including local power to the first board of the utility meter and to the second board of the utility meter, the local power supply of the utility meter assembly being an isolated power supply that is separate and isolated from the utility service provided by the utility distribution system including the utility service that is received at the utility service input terminal of the utility meter and that is provided to the utility load service by the electrical load output terminal of the utility meter through the utility meter to the electrical load for which the energy consumption is measured by the second board of the utility meter and being isolated from the electrical load to which the utility meter is providing utility service,

wherein the first processor of the first board is configured

to determine when the communication interface of the first board is currently communicating with the network device over the communication network, to determine a type of the current communication of the communication interface to the network device, to generate an indicator signal that includes an indication of an occurrence of a current communication between the first board and the network device over the communication network, an identification and the determined type of the current communication of the communication interface to the network device, and to provide the generated indicator signal to the second board via the interface port responsive to the determining, wherein the determined type of current communication of the communication interface with the network device over the communication network being selected from the group consisting of power line communication, ZigBee®

communication, radio communication, optical communication, Bluetooth communication, TCP/IP, wireless TCP/IP, and ModBus®

; and

wherein the second processor is configured to receive the provided indicator signal from the first board via the interface port, to determine, from the received indicator signal, the current communication type as determined by the first processor, and to reduce power consumption of at least one of the one or more electronic devices of the second board responsive to the determined current communication type, wherein the second processor is configured to reduce of power consumption of the electronic device at different power consumption levels dependent on the determined type of current.

14. The utility meter of claim 13 wherein the second board includes two or more electronic devices and wherein the second processor is configured to select one or more of the two or more electronic devices for reducing the power consumption thereof, as a function of the determined type of current communication.