ES2150922T3 - Metodo de señalizacion. - Google Patents

Metodo de señalizacion.

Info

Publication number
ES2150922T3
ES2150922T3 ES93102105T ES93102105T ES2150922T3 ES 2150922 T3 ES2150922 T3 ES 2150922T3 ES 93102105 T ES93102105 T ES 93102105T ES 93102105 T ES93102105 T ES 93102105T ES 2150922 T3 ES2150922 T3 ES 2150922T3
Authority
ES
Spain
Prior art keywords
transmissions
substation
operating
collection systems
data collection
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.)
Expired - Lifetime
Application number
ES93102105T
Other languages
English (en)
Inventor
Lyn Mervyn Roberts
David Edward Cooper
Kelvin Eric Stock
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.)
Siemens Metering Ltd
Original Assignee
Siemens Metering 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
Priority claimed from GB909012457A external-priority patent/GB9012457D0/en
Priority claimed from GB919102199A external-priority patent/GB9102199D0/en
Application filed by Siemens Metering Ltd filed Critical Siemens Metering Ltd
Application granted granted Critical
Publication of ES2150922T3 publication Critical patent/ES2150922T3/es
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
    • H04B3/544—Setting up communications; Call and signalling arrangements
    • 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
    • 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
    • H02J13/00028—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 involving the use of Internet protocols
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
    • H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • H04L5/1476—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bitwise
    • 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
    • H04B2203/5404—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
    • H04B2203/5462—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
    • 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
    • H04B2203/5495—Systems for power line communications having measurements and testing channel
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Small-Scale Networks (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Gyroscopes (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Dc Digital Transmission (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Saccharide Compounds (AREA)

Abstract

Método para coordinar la transmisión de mensajes de consulta procedentes de una subestación de distribución de baja tensión y las respuestas procedentes de una pluralidad de contadores de electricidad que se comunican a través de la red de distribución de baja tensión, caracterizado porque la fase precisa de la temporización de bit de los datos de los mensajes de consulta transmitidos, procedentes de la subestación, se conserva entre transmisiones, y la respuesta de los contadores de electricidad mantiene la fase de la temporización de bit de los datos de los mensajes procedentes de las subestaciones en sus propias transmisiones.
ES93102105T 1990-06-05 1991-06-05 Metodo de señalizacion. Expired - Lifetime ES2150922T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909012457A GB9012457D0 (en) 1990-06-05 1990-06-05 Method and apparatus for signalling
GB919102199A GB9102199D0 (en) 1991-02-01 1991-02-01 Method and apparatus for signalling

Publications (1)

Publication Number Publication Date
ES2150922T3 true ES2150922T3 (es) 2000-12-16

Family

ID=26297163

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93102105T Expired - Lifetime ES2150922T3 (es) 1990-06-05 1991-06-05 Metodo de señalizacion.

Country Status (10)

Country Link
EP (3) EP0560071B1 (es)
JP (1) JPH06504888A (es)
AT (1) ATE195836T1 (es)
AU (2) AU656526B2 (es)
CA (1) CA2084403A1 (es)
DE (1) DE69132383T2 (es)
DK (1) DK0560071T3 (es)
ES (1) ES2150922T3 (es)
GR (1) GR3034881T3 (es)
WO (1) WO1991019360A2 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696605B1 (fr) * 1992-10-02 1994-12-30 Suisse Electronique Microtech Modulateur de signaux binaires par déplacement de fréquence.
DE4418296A1 (de) * 1994-05-26 1995-11-30 Abb Patent Gmbh Netzankopplung für Einrichtungen zur Datenübertragung über ein elektrisches Verteilnetz
FR2721457B1 (fr) * 1994-06-20 1996-07-19 Schlumberger Ind Sa Appareil pour compenser l'atténuation des signaux de télécommande centralisée sur un réseau électrique.
WO1996018238A1 (de) * 1994-12-08 1996-06-13 Siemens Aktiengesellschaft Vorrichtung zur störsicheren modulation und demodulation von analogen signalen zur nachrichtenübertragung über die schirmungen von energieübertragungskabeln
US5778027A (en) * 1995-11-24 1998-07-07 Telefonaktiebolaget Lm Ericsson Method and apparatus for determining signal components using digital signal processing
US6259747B1 (en) * 1997-03-20 2001-07-10 Telefonaktiebolaget L M Ericsson (Publ) IQ modulator, and associated method
US6154488A (en) * 1997-09-23 2000-11-28 Hunt Technologies, Inc. Low frequency bilateral communication over distributed power lines
US6539411B1 (en) * 1998-10-29 2003-03-25 Lucent Technologies Inc. Direct digital synthesizer
US6442381B1 (en) 1998-10-30 2002-08-27 Echelon Corporation Method and apparatus for defining and generating local oscillator signals for down converter
US7023833B1 (en) 1999-09-10 2006-04-04 Pulse-Link, Inc. Baseband wireless network for isochronous communication
US6944148B1 (en) 1999-09-10 2005-09-13 Pulse-Link, Inc. Apparatus and method for managing variable-sized data slots within a time division multiple access frame
AT408595B (de) * 2000-02-18 2002-01-25 Ericsson Ahead Comm Systems Gm Datenübertragungssystem
US6952456B1 (en) 2000-06-21 2005-10-04 Pulse-Link, Inc. Ultra wide band transmitter
US7035246B2 (en) 2001-03-13 2006-04-25 Pulse-Link, Inc. Maintaining a global time reference among a group of networked devices
EP1973285A1 (en) 2007-03-23 2008-09-24 Nokia Siemens Networks Gmbh & Co. Kg Method and receiver for decoding digital information
CN106935022A (zh) * 2017-03-21 2017-07-07 广西盛洲电力科技有限公司 一种电力宽带载波通信抄表***

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710373A (en) * 1969-05-14 1973-01-09 Matsushita Communication Ind Signal discriminating system
JPS5321963B2 (es) * 1973-11-12 1978-07-06
JPS53121511A (en) * 1977-03-31 1978-10-24 Mitsubishi Electric Corp Transmitting/receving system
US4514840A (en) * 1982-12-29 1985-04-30 Te Ka De Felten & Guilleaume Fernmeldeanlagen Gmbh Data transmission systems for full duplex communication
US4748641A (en) * 1985-07-03 1988-05-31 Cincinnati Electronics Corporation Suppressed carrier modulation method
US4815106A (en) * 1986-04-16 1989-03-21 Adaptive Networks, Inc. Power line communication apparatus
US4766414A (en) * 1986-06-17 1988-08-23 Westinghouse Electric Corp. Power line communication interference preventing circuit
US4885563A (en) * 1988-05-03 1989-12-05 Thermo King Corporation Power line carrier communication system
FR2636796B1 (fr) * 1988-09-20 1990-11-02 Telecommunications Sa Modulation a sauts de phase lineaires et a enveloppe constante

Also Published As

Publication number Publication date
ATE195836T1 (de) 2000-09-15
EP0560071A3 (en) 1993-10-13
WO1991019360A2 (en) 1991-12-12
EP0817399A2 (en) 1998-01-07
AU656526B2 (en) 1995-02-09
JPH06504888A (ja) 1994-06-02
DK0560071T3 (da) 2000-10-09
CA2084403A1 (en) 1991-12-06
DE69132383T2 (de) 2001-02-01
EP0817399A3 (en) 1998-10-07
EP0560071B1 (en) 2000-08-23
AU7913194A (en) 1995-02-09
AU7951191A (en) 1991-12-31
WO1991019360A3 (en) 1992-04-30
EP0532648A1 (en) 1993-03-24
GR3034881T3 (en) 2001-02-28
EP0560071A2 (en) 1993-09-15
DE69132383D1 (de) 2000-09-28

Similar Documents

Publication Publication Date Title
ES2150922T3 (es) Metodo de señalizacion.
WO2002039599A3 (en) Data communication over power lines
CN109217471A (zh) 低压配电台区网络拓扑的识别装置
FR2586873B1 (fr) Pont pour transformateur dans un reseau de communication par signal porteur utilisant un systeme de distribution d'energie electrique.
IT8219464A0 (it) Impianto di trasmissione di segnali su conduttori di una rete di distribuzione di energia elettrica.
CA2173645A1 (en) Communications processor for electric power substations
MY132023A (en) Factory network having a plurality of factories and method of coordinating same
IT8219463A0 (it) Impianto di trasmissione di segnali su conduttori di una rete di distribuzione di energia elettrica.
ES2117084T3 (es) Red de comunicaciones con capacidad de interrogacion.
CA2076211A1 (en) Energy monitoring system for a plurality of local stations with snapshot polling from a central station
GB9521313D0 (en) Communication system and apparatus for remote reading of utility meters and power demand management of power systems
Hunt et al. Using ultra narrow bandwidth to overcome traditional problems with distribution line carrier
JPS6468043A (en) Two-wire type information transmission equipment
ES8608175A1 (es) Sistema distribuido para la medida de contadores de energia.
JPH0122782B2 (es)
EA200100599A1 (ru) Схема для подачи сигнала связи в систему распределения электроэнергии
RU2121758C1 (ru) Модем низкого напряжения для связи между элементами системы дистанционного управления потреблением
ES2196151T3 (es) Procedimiento y dispositivo de transmision entre una pluralidad de unidades locales conectadas a distintas redes de distribucion de corriente electrica.
Hauser et al. DartNet- the new PLC communications system for MV and LV networks
Jones et al. A system for communication with meters by radio
DK0775380T3 (da) Fjernstyringssystem med dataoverføring via afskærmningen af energioverføringskabler
ATE157493T1 (de) Speisungssystem für fernmeldesysteme enthalten in strassenvorrichtungen, die endgeräte mit einer vermittlungsanlage verbinden
ES2108625A1 (es) Modem de baja tension para la comunicacion entre los elementos de un sistema de telegestion de consumos.
El-Shirbeeny et al. Review of current communication schemes for electric energy management
Casanova Long range transmission system communication plan for ComEd of Chicago 1995 to 2000 part I

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 555840

Country of ref document: ES