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GB2269970A - Signalling system and method - Google Patents

Signalling system and method

Info

Publication number
GB2269970A
GB2269970A GB9319118A GB9319118A GB2269970A GB 2269970 A GB2269970 A GB 2269970A GB 9319118 A GB9319118 A GB 9319118A GB 9319118 A GB9319118 A GB 9319118A GB 2269970 A GB2269970 A GB 2269970A
Authority
GB
United Kingdom
Prior art keywords
closed loop
power cable
transformer
signals
conductors
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
GB9319118A
Other versions
GB2269970B (en
GB9319118D0 (en
Inventor
Gilbert Davies
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.)
GJD Manufacturing Ltd
Original Assignee
GJD Manufacturing Ltd
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 GJD Manufacturing Ltd filed Critical GJD Manufacturing Ltd
Publication of GB9319118D0 publication Critical patent/GB9319118D0/en
Publication of GB2269970A publication Critical patent/GB2269970A/en
Application granted granted Critical
Publication of GB2269970B publication Critical patent/GB2269970B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/06—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using power transmission 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
    • H04B2203/5441—Wireless systems or 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
    • H04B2203/5458—Monitor sensor; Alarm systems
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)

Abstract

A system and method for signalling through a power cable. At least one capacitor is connected between first and second conductors of the power cable to define a closed loop incorporating portions of the first and second conductors. Signals are injected into the closed loop via a first transformer a winding of which is connected in series with the closed loop. Signals are received from the power cable via a second transformer a winding of which is connected in series with the closed loop. Thus, signals applied to the first transformer may be transmitted to the receiver through the power cable.
GB9319118A 1991-03-16 1992-03-13 Signalling system and method Expired - Fee Related GB2269970B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919105613A GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method
PCT/GB1992/000456 WO1992016920A1 (en) 1991-03-16 1992-03-13 Signalling system and method

Publications (3)

Publication Number Publication Date
GB9319118D0 GB9319118D0 (en) 1993-12-01
GB2269970A true GB2269970A (en) 1994-02-23
GB2269970B GB2269970B (en) 1995-03-15

Family

ID=10691710

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919105613A Pending GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method
GB9319118A Expired - Fee Related GB2269970B (en) 1991-03-16 1992-03-13 Signalling system and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919105613A Pending GB9105613D0 (en) 1991-03-16 1991-03-16 Signalling system and method

Country Status (4)

Country Link
EP (1) EP0576482A1 (en)
AU (1) AU1366392A (en)
GB (2) GB9105613D0 (en)
WO (1) WO1992016920A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2206920C2 (en) * 2001-02-27 2003-06-20 Заренков Вячеслав Адамович Method and device for detecting unauthorized impact on object being guarded

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GB9222205D0 (en) * 1992-10-22 1992-12-02 Norweb Plc Low voltage filter
US6144292A (en) * 1992-10-22 2000-11-07 Norweb Plc Powerline communications network employing TDMA, FDMA and/or CDMA
US6282405B1 (en) 1992-10-22 2001-08-28 Norweb Plc Hybrid electricity and telecommunications distribution network
GB9417359D0 (en) * 1994-08-26 1994-10-19 Norweb Plc A power transmission network and filter therefor
JP2003521147A (en) 2000-01-20 2003-07-08 カレント・テクノロジーズ・エルエルシー Data Separation Method in Power Line Communication Network
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
US7103240B2 (en) 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
US7248148B2 (en) 2000-08-09 2007-07-24 Current Technologies, Llc Power line coupling device and method of using the same
US6980089B1 (en) 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
US7245201B1 (en) 2000-08-09 2007-07-17 Current Technologies, Llc Power line coupling device and method of using the same
FR2818824B1 (en) 2000-12-21 2003-03-21 St Microelectronics Sa INTEGRATED SWITCHER CONTROLLED BY RF TRANSFORMER
RU2210813C2 (en) * 2001-02-12 2003-08-20 Заренков Вячеслав Адамович Device for burglar and fire alarm
EP1371219A4 (en) 2001-02-14 2006-06-21 Current Tech Llc Data communication over a power line
WO2002080396A1 (en) * 2001-03-29 2002-10-10 Ambient Corporation Coupling circuit for power line communications
RU2178951C1 (en) * 2001-04-10 2002-01-27 Московский государственный авиационный институт (технический университет) Local data check and acquisition system
RU2178952C1 (en) * 2001-04-10 2002-01-27 Мартиросов Владимир Ервандович System for transmitting and receiving modulated signals over power supply mains
US7173938B1 (en) 2001-05-18 2007-02-06 Current Grid, Llc Method and apparatus for processing outbound data within a powerline based communication system
US7194528B1 (en) 2001-05-18 2007-03-20 Current Grid, Llc Method and apparatus for processing inbound data within a powerline based communication system
US7173935B2 (en) 2002-06-07 2007-02-06 Current Grid, Llc Last leg utility grid high-speed data communication network having virtual local area network functionality
US7245472B2 (en) 2001-05-18 2007-07-17 Curretn Grid, Llc Medium voltage signal coupling structure for last leg power grid high-speed data network
WO2002101952A1 (en) * 2001-06-12 2002-12-19 Main.Net Communications Ltd. Coupling circuits for power line communications
RU2212711C2 (en) * 2001-11-12 2003-09-20 Заренков Вячеслав Адамович Device for guard alarm with remote radio communication
US7053756B2 (en) 2001-12-21 2006-05-30 Current Technologies, Llc Facilitating communication of data signals on electric power systems
US7102478B2 (en) 2002-06-21 2006-09-05 Current Technologies, Llc Power line coupling device and method of using the same
US6982611B2 (en) 2002-06-24 2006-01-03 Current Technologies, Llc Power line coupling device and method of using the same
US7075414B2 (en) 2003-05-13 2006-07-11 Current Technologies, Llc Device and method for communicating data signals through multiple power line conductors
US6965303B2 (en) 2002-12-10 2005-11-15 Current Technologies, Llc Power line communication system and method
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US6980091B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Power line communication system and method of operating the same
US6980090B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Device and method for coupling with electrical distribution network infrastructure to provide communications
US7046124B2 (en) 2003-01-21 2006-05-16 Current Technologies, Llc Power line coupling device and method of using the same
US7308103B2 (en) 2003-05-08 2007-12-11 Current Technologies, Llc Power line communication device and method of using the same
WO2005008902A2 (en) 2003-07-03 2005-01-27 Current Technologies, Llc A power line communication system and method of operating the same
US7460467B1 (en) 2003-07-23 2008-12-02 Current Technologies, Llc Voice-over-IP network test device and method
US7280033B2 (en) 2003-10-15 2007-10-09 Current Technologies, Llc Surface wave power line communications system and method
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
US7307512B2 (en) 2005-04-29 2007-12-11 Current Technologies, Llc Power line coupling device and method of use
US7259657B2 (en) 2005-06-21 2007-08-21 Current Technologies, Llc Multi-subnet power line communications system and method
US7307510B2 (en) 2005-09-02 2007-12-11 Current Technologies, Llc Power meter bypass device and method for a power line communications system
RU2322697C2 (en) * 2005-10-24 2008-04-20 Аркадий Яковлевич Раскин Intruder alarm device for electric communication objects
US7937065B2 (en) 2006-09-11 2011-05-03 Main.Net Communications Ltd. System and method for communicating over neutral power lines
JP6073578B2 (en) * 2012-06-07 2017-02-01 Ｎｅｃマグナスコミュニケーションズ株式会社 Power line carrier communication system
US9785213B2 (en) * 2015-01-29 2017-10-10 Koolbridge Solar, Inc. Addressable electrical outlets
US9614588B2 (en) 2015-01-29 2017-04-04 Koolbridge Solar, Inc. Smart appliances
US10536039B2 (en) 2017-12-12 2020-01-14 Koolbridge Solar, Inc. Hybrid wired-wireless communication system for delivery of power from two or more sources to smart appliances

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057632A2 (en) * 1981-01-29 1982-08-11 JEUMONT-SCHNEIDER Société anonyme dite: Control method for a train with automatic operation
US4745391A (en) * 1987-02-26 1988-05-17 General Electric Company Method of, and apparatus for, information communication via a power line conductor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0057632A2 (en) * 1981-01-29 1982-08-11 JEUMONT-SCHNEIDER Société anonyme dite: Control method for a train with automatic operation
US4745391A (en) * 1987-02-26 1988-05-17 General Electric Company Method of, and apparatus for, information communication via a power line conductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2206920C2 (en) * 2001-02-27 2003-06-20 Заренков Вячеслав Адамович Method and device for detecting unauthorized impact on object being guarded

Also Published As

Publication number Publication date
AU1366392A (en) 1992-10-21
GB9105613D0 (en) 1991-05-01
EP0576482A1 (en) 1994-01-05
WO1992016920A1 (en) 1992-10-01
GB2269970B (en) 1995-03-15
GB9319118D0 (en) 1993-12-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070313