CA2015414A1 - Method of and system for power line carrier communications - Google Patents
Method of and system for power line carrier communicationsInfo
- Publication number
- CA2015414A1 CA2015414A1 CA2015414A CA2015414A CA2015414A1 CA 2015414 A1 CA2015414 A1 CA 2015414A1 CA 2015414 A CA2015414 A CA 2015414A CA 2015414 A CA2015414 A CA 2015414A CA 2015414 A1 CA2015414 A1 CA 2015414A1
- Authority
- CA
- Canada
- Prior art keywords
- logical
- signals
- channels
- power line
- signal
- 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
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
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
- H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
-
- 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
- H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source
-
- 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
- H04B2203/5462—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission
Abstract
The transmitter in a power line communications system applies to the power line encoded logical-one and logical-zero bit signals consisting of signals formed respectively of predetermined different sequences of frequencies. The receiver, coupled to the power line, includes a first homodyne, non-coherent, quadratic demodulator for demodulating the logical-one bits and a second for demodulating the logical-zero bits. The first demodulator produces, locally, and in first and second channels, respectively, a first reference signal that is a replica of the logical-one bit sequence of frequencies and a second reference signal that is the replica in quadrature. The second demodulator produces, locally, and in third and fourth channels, respectively, corresponding third and fourth reference signals for the logical-zero bit sequence.
Each of the four reference signals is applied to a corresponding analog multiplier for multiplication by the input signal in each channel. The output of each multiplier is applied to a low pass filter that passes only the dc component of the product signal which in turn is squared. The resultant signals in the first and second channels are summed to provide a first output signal, and the resultant signals in the third and fourth channels are summed to provide a second output signal. Compensation circuitry cancels error voltages developed in the demodulation channels as a result of component offset, and the two output signals are integrated over a bit period and then compared to each other to detect a logical-one or logical-zero bit.
Each of the four reference signals is applied to a corresponding analog multiplier for multiplication by the input signal in each channel. The output of each multiplier is applied to a low pass filter that passes only the dc component of the product signal which in turn is squared. The resultant signals in the first and second channels are summed to provide a first output signal, and the resultant signals in the third and fourth channels are summed to provide a second output signal. Compensation circuitry cancels error voltages developed in the demodulation channels as a result of component offset, and the two output signals are integrated over a bit period and then compared to each other to detect a logical-one or logical-zero bit.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US343,202 | 1989-04-26 | ||
US07/343,202 US4968970A (en) | 1989-04-26 | 1989-04-26 | Method of and system for power line carrier communications |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2015414A1 true CA2015414A1 (en) | 1990-10-26 |
CA2015414C CA2015414C (en) | 2000-10-17 |
Family
ID=23345113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002015414A Expired - Lifetime CA2015414C (en) | 1989-04-26 | 1990-04-25 | Method of and system for power line carrier communications |
Country Status (9)
Country | Link |
---|---|
US (1) | US4968970A (en) |
EP (1) | EP0395494B1 (en) |
JP (1) | JPH0362743A (en) |
KR (1) | KR900017312A (en) |
AT (1) | ATE125651T1 (en) |
BR (1) | BR9001953A (en) |
CA (1) | CA2015414C (en) |
DE (1) | DE69021120T2 (en) |
FI (1) | FI902069A0 (en) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5185591A (en) * | 1991-07-12 | 1993-02-09 | Abb Power T&D Co., Inc. | Power distribution line communication system for and method of reducing effects of signal cancellation |
US5319634A (en) * | 1991-10-07 | 1994-06-07 | Phoenix Corporation | Multiple access telephone extension systems and methods |
US5452344A (en) * | 1992-05-29 | 1995-09-19 | Datran Systems Corporation | Communication over power lines |
US5530737A (en) | 1993-03-22 | 1996-06-25 | Phonex Corporation | Secure access telephone extension system and method |
US5911119A (en) * | 1993-03-22 | 1999-06-08 | Phonex Corporation | Secure cordless telephone extension system and method |
GB9416688D0 (en) * | 1994-08-18 | 1994-10-12 | Remote Metering Systems Ltd | Mains signalling systems |
US5517172A (en) * | 1994-09-19 | 1996-05-14 | Chiu; Manfred F. | Method and apparatus for powering and signaling over a single wire pair |
GB9419807D0 (en) * | 1994-09-30 | 1994-11-16 | Remote Metering Systems Ltd | Mains signalling systems |
US5818821A (en) | 1994-12-30 | 1998-10-06 | Intelogis, Inc. | Universal lan power line carrier repeater system and method |
US7054271B2 (en) | 1996-12-06 | 2006-05-30 | Ipco, Llc | Wireless network system and method for providing same |
US8982856B2 (en) | 1996-12-06 | 2015-03-17 | Ipco, Llc | Systems and methods for facilitating wireless network communication, satellite-based wireless network systems, and aircraft-based wireless network systems, and related methods |
US6233327B1 (en) * | 1997-02-14 | 2001-05-15 | Statsignal Systems, Inc. | Multi-function general purpose transceiver |
US7079810B2 (en) * | 1997-02-14 | 2006-07-18 | Statsignal Ipc, Llc | System and method for communicating with a remote communication unit via the public switched telephone network (PSTN) |
US7137550B1 (en) | 1997-02-14 | 2006-11-21 | Statsignal Ipc, Llc | Transmitter for accessing automated financial transaction machines |
US5970127A (en) | 1997-10-16 | 1999-10-19 | Phonex Corporation | Caller identification system for wireless phone jacks and wireless modem jacks |
US6055435A (en) | 1997-10-16 | 2000-04-25 | Phonex Corporation | Wireless telephone connection surge suppressor |
US6107912A (en) | 1997-12-08 | 2000-08-22 | Phonex Corporation | Wireless modem jack |
US6914893B2 (en) | 1998-06-22 | 2005-07-05 | Statsignal Ipc, Llc | System and method for monitoring and controlling remote devices |
US6891838B1 (en) | 1998-06-22 | 2005-05-10 | Statsignal Ipc, Llc | System and method for monitoring and controlling residential devices |
US6914533B2 (en) * | 1998-06-22 | 2005-07-05 | Statsignal Ipc Llc | System and method for accessing residential monitoring devices |
US6437692B1 (en) | 1998-06-22 | 2002-08-20 | Statsignal Systems, Inc. | System and method for monitoring and controlling remote devices |
US8410931B2 (en) | 1998-06-22 | 2013-04-02 | Sipco, Llc | Mobile inventory unit monitoring systems and methods |
US6480510B1 (en) | 1998-07-28 | 2002-11-12 | Serconet Ltd. | Local area network of serial intelligent cells |
US6246868B1 (en) | 1998-08-14 | 2001-06-12 | Phonex Corporation | Conversion and distribution of incoming wireless telephone signals using the power line |
US6243571B1 (en) | 1998-09-21 | 2001-06-05 | Phonex Corporation | Method and system for distribution of wireless signals for increased wireless coverage using power lines |
US7103511B2 (en) | 1998-10-14 | 2006-09-05 | Statsignal Ipc, Llc | Wireless communication networks for providing remote monitoring of devices |
US7263073B2 (en) | 1999-03-18 | 2007-08-28 | Statsignal Ipc, Llc | Systems and methods for enabling a mobile user to notify an automated monitoring system of an emergency situation |
US7650425B2 (en) | 1999-03-18 | 2010-01-19 | Sipco, Llc | System and method for controlling communication between a host computer and communication devices associated with remote devices in an automated monitoring system |
US6456192B1 (en) * | 2000-04-19 | 2002-09-24 | Phonex Broadband Corporation | Method and system for power line null detection and automatic frequency and gain control |
US6842459B1 (en) | 2000-04-19 | 2005-01-11 | Serconet Ltd. | Network combining wired and non-wired segments |
JP2001345742A (en) | 2000-05-31 | 2001-12-14 | Smk Corp | Ss transmission system |
US6836737B2 (en) | 2000-08-09 | 2004-12-28 | Statsignal Systems, Inc. | Systems and methods for providing remote monitoring of consumption for a utility meter |
US7346463B2 (en) | 2001-08-09 | 2008-03-18 | Hunt Technologies, Llc | System for controlling electrically-powered devices in an electrical network |
US8489063B2 (en) | 2001-10-24 | 2013-07-16 | Sipco, Llc | Systems and methods for providing emergency messages to a mobile device |
US7480501B2 (en) | 2001-10-24 | 2009-01-20 | Statsignal Ipc, Llc | System and method for transmitting an emergency message over an integrated wireless network |
US7424527B2 (en) | 2001-10-30 | 2008-09-09 | Sipco, Llc | System and method for transmitting pollution information over an integrated wireless network |
NZ517321A (en) * | 2002-02-21 | 2003-02-28 | Rutherford J G | A communications system utilising electricity cabling |
IL154921A (en) | 2003-03-13 | 2011-02-28 | Mosaid Technologies Inc | Telephone system having multiple distinct sources and accessories therefor |
US7136936B2 (en) * | 2003-10-03 | 2006-11-14 | Asoka Usa Corporation | Method and system for virtual powerline local area networks |
US11152971B2 (en) * | 2004-02-02 | 2021-10-19 | Charles Abraham | Frequency modulated OFDM over various communication media |
US7756086B2 (en) * | 2004-03-03 | 2010-07-13 | Sipco, Llc | Method for communicating in dual-modes |
US8031650B2 (en) | 2004-03-03 | 2011-10-04 | Sipco, Llc | System and method for monitoring remote devices with a dual-mode wireless communication protocol |
DE102004039218A1 (en) * | 2004-08-12 | 2006-03-09 | Infineon Technologies Ag | Method for data transmission via a data transmission path with inductive transformers and data transmission device |
US7391317B2 (en) * | 2004-09-08 | 2008-06-24 | Satius, Inc. | Apparatus and method for transmitting digital data over various communication media |
US9439126B2 (en) | 2005-01-25 | 2016-09-06 | Sipco, Llc | Wireless network protocol system and methods |
WO2006123170A1 (en) * | 2005-05-20 | 2006-11-23 | Innovision Research & Technology Plc | Near field rf communications |
WO2010033245A1 (en) * | 2008-09-22 | 2010-03-25 | Silver Spring Networks, Inc. | Power line communication using frequency hopping |
US8718115B2 (en) * | 2010-10-08 | 2014-05-06 | Texas Instruments Incorporated | Building, transmitting, and receiving frame structures in power line communications |
GB2536907A (en) * | 2015-03-30 | 2016-10-05 | Lighting And Illumination Tech Experience Ltd | Controlling power to a load with signals along a power line |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4300125A (en) * | 1979-06-01 | 1981-11-10 | Loshing Clement T | System for monitoring, transmitting and conditioning of information gathered at selected locations |
US4641322A (en) * | 1983-10-18 | 1987-02-03 | Nec Corporation | System for carrying out spread spectrum communication through an electric power line |
JPH0693670B2 (en) * | 1984-12-29 | 1994-11-16 | 京セラ株式会社 | Spread spectrum communication system |
FR2577733B1 (en) * | 1985-02-14 | 1988-03-25 | Enertec | METHOD AND SYSTEM FOR SPREAD BAND TRANSMISSION, IN PARTICULAR FOR TRANSMITTING INFORMATION OVER AN ELECTRIC POWER DISTRIBUTION NETWORK |
-
1989
- 1989-04-26 US US07/343,202 patent/US4968970A/en not_active Expired - Lifetime
-
1990
- 1990-04-25 KR KR1019900005931A patent/KR900017312A/en not_active Application Discontinuation
- 1990-04-25 FI FI902069A patent/FI902069A0/en not_active Application Discontinuation
- 1990-04-25 DE DE69021120T patent/DE69021120T2/en not_active Expired - Fee Related
- 1990-04-25 CA CA002015414A patent/CA2015414C/en not_active Expired - Lifetime
- 1990-04-25 EP EP90401103A patent/EP0395494B1/en not_active Expired - Lifetime
- 1990-04-25 AT AT90401103T patent/ATE125651T1/en not_active IP Right Cessation
- 1990-04-26 BR BR909001953A patent/BR9001953A/en not_active Application Discontinuation
- 1990-04-26 JP JP2111603A patent/JPH0362743A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
KR900017312A (en) | 1990-11-16 |
DE69021120D1 (en) | 1995-08-31 |
JPH0362743A (en) | 1991-03-18 |
US4968970A (en) | 1990-11-06 |
FI902069A0 (en) | 1990-04-25 |
DE69021120T2 (en) | 1996-02-01 |
ATE125651T1 (en) | 1995-08-15 |
CA2015414C (en) | 2000-10-17 |
EP0395494A3 (en) | 1992-01-02 |
EP0395494B1 (en) | 1995-07-26 |
EP0395494A2 (en) | 1990-10-31 |
BR9001953A (en) | 1991-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20100425 |