Automatic power outage notification via CEBus interface

• US 6,058,355 A
• Filed: 06/30/1997
• Issued: 05/02/2000
• Est. Priority Date: 06/30/1997
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Kumar, Rajesh, Ahmed, Zaheer, Mostafa, Mohamed, Fong, Sin-Min
• Primary Examiner(s): Trammell, James P.
• Assistant Examiner(s): SMITH-STEWART, DEMETRA R
• Application Number:
  US08/885,621
• Time in Patent Office: 1,037 Days
• Field of Search: 702/62, 702/61, 364/528.3, 364/528.28, 364/528.21, 364/528.32, 364/138, 340/310.01, 340/310.06, 340/870.02, 340/870.09, 700/10, 700/293, 700/295, 370/389, 370/401, 370/402, 370/403, 370/410, 370/465, 370/466, 307/37, 307/38
• US Class Current: 702/62
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 13/00028 involving the use of Internet protocols
• CPC Class Codes: H02J 2213/10 using simultaneously two or more different transmission means
• CPC Class Codes: H04L 12/10 Current supply arrangements
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/282 based on user interaction within the home receiver circuitry for displaying additional information being controlled by a remote control apparatus H04N21/42204
• CPC Class Codes: H04L 2012/2843 Mains power line
• CPC Class Codes: H04L 2012/561 Star, e.g. cross-connect, concentrator, subscriber group equipment, remote electronics
• CPC Class Codes: H04L 2012/5615 Network termination, e.g. NT1, NT2, PBX
• CPC Class Codes: H04L 2012/5638 Services, e.g. multimedia, GOS, QOS
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/30 State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
• CPC Class Codes: Y04S 20/20 End-user application control systems

Abstract

A system for providing remote access and control of electronic devices connected to a CEBus network includes a remotely located master node, e.g., a utility server controller, which is linked to the CEBus network via an ATM-based broadband access network ("BAN"). A proxy node is provided on the CEBus network, wherein the proxy node is also linked to the master node via the BAN. The proxy node includes a power monitoring module, which constantly monitors the power supply to the proxy node, e.g., of a residential home at which the proxy node is located. In the case of a power failure, the monitoring module detects the failure and notifies a power outage module. The power outage module generates a power failure alarm message, which is forwarded to the master node in the form of a CEBus link protocol data unit ("LPDU"). In particular, the proxy node packetizes the LPDU alarm message into ATM transmission format for transport to the master node over the BAN. Upon receipt of the LPDU alarm message, the master node notifies the appropriate utility company about the power failure, based on specific identifying information contained in the LPDU alarm message.

Claims

1. A power monitor system supporting a plurality of customer sites, the power monitory system comprising:

a central management entity responsible for supporting the plurality of customer sites, said central management entity remotely located from each of the plurality of customer sites, said central management entity comprising a plurality of ports;

an energy management terminal remotely located from each of the plurality of customer sites, said energy management terminal comprising the capability to communicate with said central management entity; and

a network terminal located at each of the plurality of customer sites, each network terminal comprising power monitoring circuitry to monitor the power output of a power supply of the respective customer site, the capability to communicate with one or more CEBus compliant devices at the respective customer site via CEBus protocol messages, and the capability to communicate with said energy management terminal via a non-CEBus network.

2. The power monitor system of claim 1, further comprising a plurality of access network termination facilities, each access network termination facility comprising a switch.

3. The power monitor system of claim 2, in which each of said plurality of access network termination facilities further comprises an energy management terminal, a respective energy management terminal comprising the capability to communicate with said central management entity via a communication interface between the energy management terminal and a port of said central management entity.

4. The power monitor system of claim 3, in which an energy management terminal of a respective access network termination facility communicates with said central management entity via Internet Protocol ("IP") datagrams, and in which an IP datagram comprises an encapsulated CEBus protocol message.

5. The power monitor system of claim 1, further comprising a residential network, said residential network comprising a communication interface for one or more CEBus compliant devices and the network terminal of two or more customer sites.

6. The power monitor system of claim 1, in which said non-CEBus network comprises a broadband access network, said broadband access network comprising a distribution network comprising a communication interface to a network terminal, said broadband access network further comprising an access network termination facility comprising a switch, the capability to communicate with one or more network terminals via said distribution network, and the capability to communicate with said central management entity via a communication interface between said access network termination facility and a port of said central management entity.

7. The power monitor system of claim 6, in which a network terminal located at a customer site communicates with a CEBus compliant device located at the customer site via CEBus protocol messages, said respective network terminal communicates with an access network termination facility via CEBus messages encapsulated into asynchronous transfer mode ("ATM") cells, and an access network termination facility communicates with said central management entity via CEBus messages encapsulated into Internet Protocol ("IP") datagrams.

8. The power monitor system of claim 1, comprising the capability to monitor the power output of a power supply at each of the plurality of customer sites, said power monitor system further comprising the capability to control the power consumption at each of the plurality of customer sites.

9. A power network supporting a plurality of customer sites, the power network comprising:

a network terminal located at each of the plurality of customer sites, each network terminal comprising power monitoring circuitry to detect a power outage at a main power supply of the respective customer site, battery power, and the capability to share a main power supply of the respective customer site with one or more CEBus compliant devices located at the customer site;

a residential network comprising a communication interface for one or more CEBus complaint devices and the network terminal of two or more customer sites; and

a utility host node remotely located from the plurality of customer sites, said utility host node capable of communicating with the network terminal located at a respective customer site via a non-CEBus access network.

10. The power network of claim 9, in which said non-CEBus access network comprises a broadband access network comprising a distribution network and an access network termination facility, said access network termination facility comprising a switch and an energy management terminal, said switch comprising the capability to communicate with a network terminal via said distribution network, said energy management terminal capable of communicating with said switch and with said utility host node.

11. The power network of claim 10, in which said distribution network is an ATM-based distribution network.

12. The power network of claim 11, in which the network terminal located at a respective customer site communicates with a CEBus compliant device located at the customer site via CEBus protocol messages, said respective network terminal communicates with said access network termination facility via CEBus messages encapsulated into asynchronous transfer mode ("ATM") cells, and said energy management terminal of said access network termination facility communicates with said utility host node via CEBus messages encapsulated into Internet Protocol ("IP") datagrams.

13. The power network of claim 9, in which said battery power of a network terminal is activated upon a power outage of a main power supply of a customer site, and each network terminal comprises the capability to format and send a CEBus protocol message indicating a power failure to said utility host node upon said power monitoring circuitry of the respective network terminal detecting the power outage.

14. A method for monitoring power usage at a plurality of customer sites, comprising:

assigning a unique house code to each of a plurality of ports on a utility host master node;

assigning the unique house code of a respective port of the utility host master node to each utility managed settable node located on a CEBus network remotely connected to the respective port via an access network;

assigning a unique unit address to the utility host master node, and to each utility managed settable node located on a CEBus network remotely connected to a port of the utility host master node;

receiving at a port of the utility host master node a CEBus protocol message from a utility managed settable node upon a power outage at a customer site; and

determining the customer site experiencing the power outage by a unit address included in said CEBus protocol message.

15. The method for monitoring power usage of claim 14, in which said CEBus protocol message is transmitted from a utility managed settable node comprising a network terminal to an access network encapsulated in an asynchronous transfer mode ("ATM") cell, and in which the access network transmits said CEBus protocol message to a port of the utility host master node encapsulated in an Internet Protocol ("IP") datagram.

16. The method for monitoring power usage of claim 14, in which the utility host master node broadcasts from a respective port a load control message to the utility managed settable nodes with an assigned house code equal to the house code of the respective port, said load control message comprising a command for a utility managed settable node to turn its power off.

17. The method for monitoring power usage of claim 16, in which said load control message is broadcast from a port of the utility host master node to an access network over a communication interface encapsulated in an Internet Protocol ("IP") datagram, said load control message is broadcast from the access network to a utility managed settable node comprising a network terminal encapsulated in an asynchronous transfer mode ("ATM") cell, and said load control message is further broadcast to an additional utility managed settable node encapsulated in a link protocol data unit ("LPDU").

18. The method for monitoring power usage of claim 14, in which the utility host master node transmits from a respective port a meter read message to a plurality of utility managed settable nodes, and in which the utility host master node thereafter receives a response message from each of the plurality of utility managed settable nodes, a response message comprising a power meter reading for a power supply.

19. The method for monitoring power usage of claim 18, in which each response message is transmitted from a utility managed settable node at a customer site to an access network encapsulated in an asynchronous transfer mode ("ATM") cell, and is further transmitted to a port of the utility host master node over a communication interface encapsulated in an Internet Protocol ("IP") datagram.

20. The method for monitoring power usage of claim 14, in which a utility managed settable node comprises a CEBus compliant device and a plurality of utility managed settable nodes each further comprise a network terminal, the access network comprises a broadband access network comprising an ATM based distribution network and an access network termination facility, and the access network termination facility comprises an ATM switch.