Preventing unintended communication among power line communication devices associated with different premises power distribution lines of an electric power distribution system

• US 20050128057A1
• Filed: 11/22/2004
• Published: 06/16/2005
• Est. Priority Date: 11/15/1999
• Status: Active Grant

• Current Assignee: GE Security Incorporated (Carrier Global Corporation)
• Original Assignee: GE Security Incorporated (Carrier Global Corporation)
• Inventors: Marman, Douglas H., Mansfield, Amos Robbins
• Granted Patent: US 7,034,663 B2
• Time in Patent Office: Days
• US Class Current: 340/3.500
• CPC Class Codes: G08B 25/06 using power transmission lines
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: H04B 2203/5425 improving S/N by matching impedance, noise reduction, gain control
• CPC Class Codes: H04B 2203/5437 Wired telephone
• CPC Class Codes: H04B 2203/5441 Wireless systems or telephone
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/545 Audio/video application, e.g. interphone
• CPC Class Codes: H04B 2203/5458 Monitor sensor; Alarm systems
• CPC Class Codes: H04B 2203/5479 using repeaters
• CPC Class Codes: H04B 2203/5483 using coupling circuits
• CPC Class Codes: H04B 2203/5491 using filtering and bypassing
• CPC Class Codes: H04B 2203/5495 having measurements and testing channel
• CPC Class Codes: H04B 3/54 Systems for transmission via power distribution lines

Abstract

An electric power line communication system operates with an electric power distribution system to provide through premises power distribution lines highly reliable communication links among power line communication devices electrically coupled or located in proximity to the premises power distribution lines. Each power line communication device associated with a set of premises power distribution lines has an identification address. A master code identifies the power line communication devices as members of a system domain of power line communication devices associated with the set of premises power distribution lines. Association of the master code with the identification addresses renders the member power line communication devices capable of operation without unintended communication with power line communication devices associated with a separate, different set of premises power distribution lines.

Claims

1. A method of preventing, in an electric power distribution system comprised of multiple sets of premises power distribution lines, unintended communication of power line communication devices associated with one set of premises power distribution lines with power line communication devices associated with another, different set of premises power distribution lines, comprising:

assigning an identification address for each of multiple power line communication devices associated with a set of premises power distribution lines for use by the power line communication devices when they transmit a message over the set of premises power distribution lines;

designating one of the multiple power line communication devices as a master power line communication device and the remaining ones of the power line communication devices as slave power line communication devices;

establishing for the master power line communication device a master code identifying the multiple power line communication devices as members of a system domain of power line communication devices associated with the set of premises power distribution lines;

causing each of the slave power line communication devices to transmit the identification address over the set of premises power distribution lines; and

causing the master power line communication device to receive and store the identification address and thereby enroll the slave power line communication device as a member of the system domain of power line communication devices;

thereby, upon establishment in the master power line communication device an association of the identification codes of the member slave power line communication devices of the system domain, rendering the member power line communication devices of the system domain capable of operation without unintended communication by power line communication devices associated with a separate, different set of premises power distribution lines.

2. The method of claim 1, in which the master power line communication device, in response to receipt of an identification address, transmits the master code to the power line communication device to which the identification address is assigned to identify the power line communication device as a member of the system domain.

3. The method of claim 1, further comprising storing in each member power line communication device of the system domain the identification addresses of all of the other member power line communication devices of the system domain.