CA2429581A1 - Device for sending and receiving data through power distribution transformers - Google Patents

Device for sending and receiving data through power distribution transformers Download PDF

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Publication number
CA2429581A1
CA2429581A1 CA002429581A CA2429581A CA2429581A1 CA 2429581 A1 CA2429581 A1 CA 2429581A1 CA 002429581 A CA002429581 A CA 002429581A CA 2429581 A CA2429581 A CA 2429581A CA 2429581 A1 CA2429581 A1 CA 2429581A1
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CA
Canada
Prior art keywords
carrier
carrier signal
signal
transmitter
power line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002429581A
Other languages
French (fr)
Other versions
CA2429581C (en
Inventor
Eric De Buda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grid2020 Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2429581A1 publication Critical patent/CA2429581A1/en
Application granted granted Critical
Publication of CA2429581C publication Critical patent/CA2429581C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5433—Remote metering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5437—Wired telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5445—Local network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5491—Systems for power line communications using filtering and bypassing

Abstract

A powerline communication system including a transmitter having a pair of terminals for connection to the power lines. The transmitter comprises a carrier frequency generator for generating a carrier frequency modulated by the data signal and a switching circuit connected to the carrier frequency generator for being switched by the carrier frequency generator for generating a carrier signal having the carrier frequency. The switching circuit is also in communication with the terminals for providing the generated carrier signal thereto. The switching circuit comprises at least one storage means for storing energy when generating a portion of a cycle of the carrier signal and providing the stored energy when generating another portion of the cycle of the carrier signal. The system also comprises a receiver coupled to the power lines. The receiver includes a filter means for filtering the carrier signal from the power line signal and a demodulator connected to the filter means for extracting the data signal from the carrier signal. Both the transmitter and receiver may utilize a digital algorithm in a computing device to synchronize the carrier signal to the power line frequency to adaptively track changes in the power line frequency to minimize interference with power line harmonics and provide accurate frequency alignment between the transmitter and receiver.
CA002429581A 2000-11-24 2001-11-23 Device for sending and receiving data through power distribution transformers Expired - Lifetime CA2429581C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/718,504 US6549120B1 (en) 2000-11-24 2000-11-24 Device for sending and receiving data through power distribution transformers
US09/718,504 2000-11-24
PCT/CA2001/001642 WO2002043268A2 (en) 2000-11-24 2001-11-23 Power line communication system

Publications (2)

Publication Number Publication Date
CA2429581A1 true CA2429581A1 (en) 2002-05-30
CA2429581C CA2429581C (en) 2008-05-06

Family

ID=24886317

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002429581A Expired - Lifetime CA2429581C (en) 2000-11-24 2001-11-23 Device for sending and receiving data through power distribution transformers

Country Status (4)

Country Link
US (1) US6549120B1 (en)
AU (1) AU2002220401A1 (en)
CA (1) CA2429581C (en)
WO (1) WO2002043268A2 (en)

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Also Published As

Publication number Publication date
WO2002043268A2 (en) 2002-05-30
WO2002043268A3 (en) 2002-10-31
CA2429581C (en) 2008-05-06
US6549120B1 (en) 2003-04-15
AU2002220401A1 (en) 2002-06-03
WO2002043268B1 (en) 2003-02-20

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EEER Examination request
MKEX Expiry

Effective date: 20211123