EP1131901A1 - Connexion au reseau - Google Patents

Connexion au reseau

Info

Publication number
EP1131901A1
EP1131901A1 EP00969271A EP00969271A EP1131901A1 EP 1131901 A1 EP1131901 A1 EP 1131901A1 EP 00969271 A EP00969271 A EP 00969271A EP 00969271 A EP00969271 A EP 00969271A EP 1131901 A1 EP1131901 A1 EP 1131901A1
Authority
EP
European Patent Office
Prior art keywords
wires
network connection
network
insulation
data transmission
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.)
Withdrawn
Application number
EP00969271A
Other languages
German (de)
English (en)
Inventor
Matthias Wendt
Wolfgang Budde
Peter Fuhrmann
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Philips Corporate Intellectual Property GmbH
Koninklijke Philips Electronics NV
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 DE2000102227 external-priority patent/DE10002227A1/de
Application filed by Philips Intellectual Property and Standards GmbH, Philips Corporate Intellectual Property GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP1131901A1 publication Critical patent/EP1131901A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • 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
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5466—Systems for power line communications using three phases conductors
    • 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
    • H04B2203/5487—Systems for power line communications using coupling circuits cables

Definitions

  • the invention relates to a network connection comprising at least two wires for electrically connecting network users in a network.
  • this object is solved in that the network connection has a symmetrical structure and the two wires are twisted, in that the wires are mutually insulated to such an extent that they are suitable for a symmetrical, differential data transmission, and in that the two wires have the same electrical resistance and jointly have a cross-section which is suitable for energy transfer from a terminal of a voltage source to network users via both wires.
  • data can be transmitted through the two wires.
  • the energy transfer can jointly take place through the two wires in that a terminal of a voltage source is coupled to the two wires so that energy transfer to the network users can take place through these wires.
  • the two wires jointly have such a cross-section that they are suitable for the currents flowing in response to the energy transfer.
  • the data transmission is advantageously realized symmetrically and differentially.
  • the two wires are mutually insulated. This insulation should only be sufficient for the relatively low data transmission voltages. It should particularly not be suitable for relatively high voltages of a power supply for the network users, because only one pole of a voltage source is jointly coupled through the two wires.
  • the two wires have the same electrical resistance in order that the symmetrical differential data transmission through the two wires has the same resistance. Moreover, the data transmission is thus not disturbed by the potential jumps which may occur as a result of the energy transfer.
  • the network connection has a symmetrical construction. This results in a high attenuation of disturbances of the power supply lines, which is achieved via a cancelling means ("Ausloschung").
  • the two wires are advantageously twisted. This results in an improved mutual magnetic coupling of the two wires, which contributes to the signal-to-noise ratio of the data transmission.
  • the overall cross-section of the two wires must only be chosen to be as large as the cross- section of a wire of a separate cable connection for the energy transfer.
  • only one of the wires may be provided with an insulation for this purpose.
  • insulation can be formed in a relatively simple manner, a lacquer coating, a synthetic material coating or a tubing may be provided as insulations, as described in further embodiments of the invention.
  • stranded wires When stranded wires are used, they can be advantageously insulated by means of a cladding of one of the stranded wires or by means of an insulation between the two stranded wires, as described in a further embodiment of the invention as defined in claim 6.
  • the network connection according to the invention may also be in a double form, as defined in claim 7.
  • a pole for the energy supply is then coupled via one of the network connections.
  • the data transmission may be realized in a redundant form through the two network connections so that the transmission reliability is enhanced.
  • the outer insulation and the twisting of the wires may be advantageously formed as defined in claim 8.
  • the network connection according to the invention can be advantageously used in vehicles in which a pole for the power supply is coupled via the chassis of the vehicle. Then both the data transmission and the power supply for the other pole can take place via the network connection according to the invention. An additional cable connection with two wires for the power supply can then be dispensed with.
  • Fig. 1 shows a network comprising a plurality of network users, among which a network connection according to the invention is established
  • Fig. 2 is a cross-section through a first embodiment of a network connection according to the invention, in which only one wire is insulated
  • Fig. 3 is a cross-section through a second embodiment of a network connection according to the invention, in which both wires are provided with a thin lacquer coating
  • Fig. 4 is a cross-section through a third embodiment of a network connection according to the invention, in which the wires are formed as stranded wires.
  • Fig. 1 shows a network connection according to the invention, with two wires 1 and 2.
  • the network connection has a star-shaped configuration and interconnects a plurality of network users 3, 4, 5 and 6.
  • a further network user 7 is provided which is coupled to a terminal of a voltage source U B and couples this terminal into the two wires 1 and 2 of the network connection.
  • the network users 3, 4, 5 and 6 are capable of coupling out the required energy symmetrically from the two wires 1 and 2 of the network connection. Furthermore, the network users 3, 4, 5 and 6 transmit data via the two wires 1 and 2 of the network connection according to the invention, which is coupled in and coupled out via the network couplers and is formed in such a way that the data are transmitted symmetrically and differentially through the two wires 1 and 2.
  • the other terminal of the voltage source U B may be connected, for example, to the chassis of the vehicle comprising the network users 3 to 7.
  • FIG. 1 illustrates that an additional cable connection with two wires for the transfer of energy may be dispensed with in the network connection according to the invention.
  • One terminal for the power supply is coupled via the two wires 1 and 2 of the network connection according to the invention, and the other terminal is coupled via the chassis of the vehicle.
  • these wires 1 and 2 are also simultaneously suitable for a symmetrical, differential data transmission.
  • the two wires 1 and 2 are mutually twisted so as to achieve a satisfactory decoupling from external electric magnetic fields. Moreover, the magnetic coupling between the two wires is thereby improved.
  • the mutual insulation of the two wires may be relatively simple and thin because this insulation should only insulate the relatively low data transmission voltages. Since a pole for the power supply is jointly coupled through the two wires, these relatively high currents or voltages do not require insulations between the wires.
  • Fig. 2 is a cross-section through a first embodiment 11 of a network connection according to the invention, with two wires 1 and 2.
  • the two wires have the same cross-section and are electrically constructed in such a way that they have the same resistance.
  • only one of the wires, namely the wire 1 is provided with a thin outer insulation 13.
  • This insulation 13 may be, for example, an insulating tubing or a lacquer coating.
  • This insulation 13 should only be formed in such a way that it is adequate for the opposite data transmission voltages occurring in the two wires 1 and 2, which voltages are, however, relatively small.
  • a joint outer insulation 16 is provided.
  • the two wires 1 and 2 are mutually twisted in a way which is not further shown in Fig. 2.
  • the outer insulation 16 may be advantageously formed in such a way that the position of the two wires 1 and 2 in the network connection is visible, i.e. the twisting is recognizable from the exterior.
  • the twisting of the two wires may be advantageously interrupted so as to provide optimal connection points on the two wires 1 and 2.
  • the cross-section through the first embodiment of the network connection according to the invention, as shown in Fig. 2, illustrates that both a data transmission and a terminal for a voltage source can be established via a network connection which is actually built up in a relatively simple manner, in which even the mutual insulation of the wires may be relatively simple.
  • Fig. 3 of a network connection according to the invention which also comprises two wires 1 and 2.
  • both wires 1 and 2 are provided with a thin outer insulation 21 and 22, respectively.
  • a thin lacquer coating which can be provided in a relatively easy way is sufficient for this purpose.
  • this insulation may also consist of a synthetic material coating. It is alternatively possible to slide, for example, thin tubings on one or both wires 1 and 2.
  • the complete network connection is surrounded by an outer insulation 21.
  • Fig. 4 also shows, in a cross-section, an embodiment of a network connection according to the invention, in which the two wires 1 and 2 are constituted by stranded wires
  • the stranded wires 32 and 33 are mutually separated and insulated by means of an insulation 34.
  • the complete stranded wires 32 and 33 are embedded in an insulation 35 so that they cannot move with respect to each other, and the insulation 34 ensures a safe insulation of the two stranded wires 32 and 33 forming part of the two wires 1 and 2.
  • Fig. 4B is similar to Fig. 4A, showing wires 1 and 2 constituted by stranded wires 32 and 33. However, in this case, not only an insulation 34 as in Fig. 4A is provided but also a cladding for one of the stranded wires.
  • the stranded wires 33 of the second wire 2 are completely insulated from the exterior by this cladding 36.
  • the two stranded wires 32 and 33 are embedded in an outer insulation 35. All embodiments shown in the Figures show that the network connection according to the invention may have a relatively simple structure because only a simple insulation between the wires 1 and 2 is required. Nevertheless, it is suitable for data transmission as well as for energy transfer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne une connexion au réseau comprenant au moins deux câbles (1, 2) servant à connecter électriquement des utilisateurs (3, 4, 5, 6, 7) dans un réseau. Ladite connexion permet la transmission de données et le transfert d'énergie communs à partir d'une borne d'une source de tension via les deux câbles de la connexion au réseau. Selon la présente invention, la connexion au réseau est assurée car elle présente une structure symétrique et les deux câbles (1, 2) sont torsadés. En effet, les deux câbles (1, 2) sont mutuellement isolés à un point tel (13; 21, 22; 34; 35) qu'ils sont adaptés pour une transmission de données symétrique, différentielle et ils (1, 2) présentent la même résistance électrique et ont en commun une coupe transversale adaptée au transfert d'énergie d'une borne d'une source de tension à des utilisateurs du réseau (3, 4, 5, 6) via les deux câbles (1, 2).
EP00969271A 1999-09-18 2000-09-18 Connexion au reseau Withdrawn EP1131901A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19944697 1999-09-18
DE19944697 1999-09-18
DE2000102227 DE10002227A1 (de) 2000-01-20 2000-01-20 Netzwerkverbindung
DE10002227 2000-01-20
PCT/EP2000/009197 WO2001022615A1 (fr) 1999-09-18 2000-09-18 Connexion au reseau

Publications (1)

Publication Number Publication Date
EP1131901A1 true EP1131901A1 (fr) 2001-09-12

Family

ID=26003935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00969271A Withdrawn EP1131901A1 (fr) 1999-09-18 2000-09-18 Connexion au reseau

Country Status (5)

Country Link
EP (1) EP1131901A1 (fr)
JP (1) JP2003510770A (fr)
KR (1) KR20010080472A (fr)
CN (1) CN1321368A (fr)
WO (1) WO2001022615A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518858A1 (fr) * 1981-12-23 1983-06-24 Jeumont Schneider Dispositif de transmission de signaux sur une ligne assurant egalement une alimentation en tension continue
US5187329A (en) * 1991-06-28 1993-02-16 At&T Bell Laboratories Twisted pairs of insulated metallic conductors for transmitting high frequency signals
US5614905A (en) * 1994-01-25 1997-03-25 Crane; Ronald C. High speed serial digital data to analog signal converter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0122615A1 *

Also Published As

Publication number Publication date
WO2001022615A1 (fr) 2001-03-29
JP2003510770A (ja) 2003-03-18
CN1321368A (zh) 2001-11-07
KR20010080472A (ko) 2001-08-22

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