Method and apparatus for attaching power line communications to customer premises

a technology for power line communications and customer premises, applied in powerline communications applications, data switching networks, instruments, etc., can solve problems such as 3-phase electrical power/wiring, and achieve the effect of significant operating convenience and little (or no) additional cos

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a technology for power line communications and customer premises, applied in powerline communications applications, data switching networks, instruments, etc., can solve problems such as 3-phase electrical power/wiring, and achieve the effect of significant operating convenience and little (or no) additional cos

US20050253690A1Inactive Publication Date: 2005-11-17TELKONET COMM INC

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[0016] Embodiments of the current invention are directed to improving data connectivity afforded by PLC technology. While the carrier current coupler apparatus described here provides the means to effect the physical connection to the building power wiring, much of the improvement derives from identifying the appropriate point(s) at which to inject the PLC signal.

[0017] One common objective is to inject the PLC signal from a single, centralized device (often called a “gateway”) into the building wiring in such a way that all receptacles in the building receive adequate signal for a second device (often called a “terminal”) plugged in there to function properly. The attenuation of PLC signals along arbitrary runs of wiring is difficult to predict and highly variable so it is generally not possible to supply all receptacles with equal signal levels. A more achievable objective is to have the building and all of its' receptacles taken together as a system be well-behaved, i.e. where n...

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Abstract

A method and apparatus for modifying a three-phase power distribution network in a building in order to provide data communication by using a Power Line Carrier (PLC) signal to an approximate electrical central location point of the power distribution system remote from the data entry point of the building. A passive coupler device is attached to a centrally located service panel. The passive coupler receives the Power Line Carrier (PLC) signal from the remote entry point in the building and conditions the signal for entry at the service panel onto each phase of the three phase power distribution network.

Description

[0001] This application claims the priority of Provisional Application Ser. No. 60 / 326,205, filed Oct. 2, 2001, the disclosure of which is expressly incorporated by reference herein.BACKGROUND AND SUMMARY OF THE INVENTION [0002] The ability to interconnect computers and other intelligent devices is a common requirement wherever people live and work today. The electrical connection required to form this local area network (LAN) has traditionally been accomplished by installing dedicated data wiring both inside buildings and between clusters of buildings. A number of wireless (i.e. radio) methods have also been developed and deployed to address this need. [0003] More recently, technology to allow electric power wiring infrastructure to simultaneously transport data at high rates has been realized. This Power Line Carrier (PLC) technology typically uses modulated radio frequency (RF) signals below 50 MHz conducted on the power wiring to transport the data. [0004] There are significant ...

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Application Information

Patent Timeline

17 Nov 2005

Publication

US20050253690A1

IPC: H04M11/04; H04B3/54; H04B3/56

CPC: H04B3/542; H04B3/56; H04B2203/5483; H04B2203/5445; H04B2203/5466; H04B2203/5433

Inventors: CRENSHAW, RALPH E.; GRIMES, DAVID W.