WO2000007304A2 - Electric power supply with a device for coupling data signals to a mains supply - Google Patents

Electric power supply with a device for coupling data signals to a mains supply Download PDF

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Publication number
WO2000007304A2
WO2000007304A2 PCT/DE1999/002293 DE9902293W WO0007304A2 WO 2000007304 A2 WO2000007304 A2 WO 2000007304A2 DE 9902293 W DE9902293 W DE 9902293W WO 0007304 A2 WO0007304 A2 WO 0007304A2
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WO
Grant status
Application
Patent type
Prior art keywords
signal
ƒ
modulated
anschlu
connected
Prior art date
Application number
PCT/DE1999/002293
Other languages
German (de)
French (fr)
Other versions
WO2000007304A3 (en )
Inventor
Askold Meusling
Original Assignee
Siemens Aktiengesellschaft
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.)
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • H04B3/56Circuits for coupling, blocking, or by-passing of signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429Applications for powerline communications
    • H04B2203/5445Local network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462Systems for power line communications
    • H04B2203/5466Systems for power line communications using three phases conductors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2203/00Indexing scheme relating to line transmission systems
    • H04B2203/54Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5462Systems for power line communications
    • H04B2203/5483Systems for power line communications using coupling circuits

Abstract

The device (301) has a first terminal (101) in which the first signal (215) may be tapped. The first signal has a carrier frequency signal and a signal (106) to be modulated. A voltage transforming element (102) to transform the first signal into the second signal is connected to the first terminal. A coupling element (105) is also connected to the first terminal for detecting the signal to be modulated from the first signal. The second signal may be tapped in a second terminal (104) that is connected to the voltage transforming element. The signal to be modulated may be tapped in a third terminal (107) that is connected to the coupling element.

Description

description

Device for transformation of a first electrical signal to a second electrical signal and device for transforming an electrical signal to be modulated to a first electrical signal

The invention relates to a device for transforming an electrical signal.

Such a device is known from [1]. This device has a terminal to which a first electric signal can be tapped. The first signal has a carrier frequency signal and a aufzumodulie- the carrier frequency signal rendes electrical signal. To be modulated electrical signal is a communication signal.

Under the communication signal is an electric signal is to be understood that ER- a transmission of electronic data enables, for example, the transmission of textual data, image data or video data.

In this way it is possible, using a conventional power supply system, which any number of customers, for example with a 3-phase

AC voltage with a frequency of 50 Hz supplied also to transmit electronic data communications, whereby the use of an energy supply network is made possible in the field of data transmission.

The known from [1] device has a coupling element which is connected to the terminal. In the coupling element to a modulating electrical signal from the electrical signal obtained in a first operating mode. In egg nem second operating mode the modulated signal is modulated onto the carrier frequency signal, whereby the electrical signal is formed. Further, a second connection is provided, which is connected to the coupling element. At the second terminal, the modulated signal can be tapped or supplied, depending on the operating mode of the coupling element.

Thus, there is a communication data representing be modulated electrical signal at the second terminal on or is supplied thereto.

Further, it is known from [2] to use such a device in a scenario illustrated in Fig.2.

2 shows a power supply system 201 to which a house is connected 202nd

Further, a known from [3] base station 203 is connected via an interface 204 with the power supply mains two hundred and first

The base station 203 is connected via a network interface 205 to a communication network 206th

The base station 203 includes a Prozesor 207, the ten via a bus 208 also from [3] known Datenumsetzkar- is connected 209, which in turn are connected through coaxial cables 210 to the interface 204th Further, a high-voltage / medium-voltage Tranformatorelement is provided in the power supply network 201 211th

Under "a high voltage is further a voltage of several kilovolt (KV), usually 10 KV to understand a typical operating voltage of the size of about 220 V under a medium voltage.

The house 202 is connected via an internal interface 212 with the power supply mains two hundred and first The home interface 212 is connected to the above-described known apparatus, which is designated in Figure 2 with 213.

From the base station 203 is a medium-voltage signal, which is transmitted on power lines 214 of the power supply system 201, a communication signal, further referred to as signal to be modulated, modulated.

The medium-voltage signal is referred to as carrier frequency signal. The carrier frequency signal typically comprises 220 V and a frequency of 50 Hz.

Thus, 202 via lines 214 a first signal 215 which is supplied with the carrier frequency signal 220 and a modulated on the carrier frequency signal communication signal 221, which is generated by the base station 203, the building is.

The first signal is fed via the home interface 212 of the device 213 described above.

In the apparatus 213 the carrier frequency signal 220 is supplied to an electric counter 214 in a known manner, and the modulated signal 221, which has been demodulated by the carrier frequency signal is fed via a coaxial line 217 to a first computer 218 and a second computer 219th

A disadvantage of this scenario is that in the house 202 from the device 213, respectively, the coaxial cable 217 to each computing device 218, 219 must be such that in the house 202 new lines must be placed in each room in which a computer is provided, a data communication via the power grid to enable the two hundred and first This leads to a significant additional effort in the planning of the house 202 and further, it leads to considerable inflexibility in planning and furnishing of the house 202nd

The invention is thus based on the problem to provide a further device for the transformation of a first electrical signal to a second electrical signal, said first signal having a carrier frequency signal and a modulated signal. Further, the invention is based on the problem to provide a device for transformation of a second electrical signal to a first electrical signal, said first signal having a carrier frequency signal and a modulated signal.

The problem is solved by the devices having the characteristics of a respective independent patent claim.

In the apparatus for transforming a first electrical signal to a second electrical signal, the first signal being a carrier frequency signal and a signal to modulieren- of which a first terminal is provided, to which the first signal can be tapped. Further, a first terminal connected to the voltage-transforming element for transforming the first signal to the second signal and a likewise connected to the first terminal LD ​​is pelelement provided for determining the signal to be modulated from the first signal. Further, a second connection is provided, which is connected with the management Spannungstransformationsele- and on which second terminal the second signal can be tapped. At a third terminal which is connected to the coupling element, the signal to be modulated can be tapped.

The device for transforming an electrical signal to be modulated to a first electrical signal, WO a carrier frequency signal at the first signal and having the modulated signal, including a first terminal at which the first signal is tapped off. Further, a first terminal connected to the voltage transformation element for transformation of the first signal is provided to a second signal. A coupling element for forming the first signal from the signal to be modulated and the carrier frequency signal is connected to the first terminal. Further, a second connection is provided, which is connected with the management Spannungstransformationsele-, wherein at the second terminal, the second signal can be tapped. At a third terminal which is connected to the coupling element, the signal to be modulated is fed.

Clearly, the invention is the fact that a voltage transformation element and the coupling element are contained in a device.

Thus, it is possible to provide directly to a power supply, the coupling element, and thus the formation of the signal to be modulated or the supply of the signal to be modulated is possible directly in the power supply.

Preferred developments of the invention emerge from the dependent claims.

In one embodiment it is provided that the Koppelele- ment with a modulation / demodulation unit is connected, which is set up such that

- in a first operating mode of the modulation / demodulation onseinheit a demodulated digital signal from the signal to be modulated can be determined, and - in a second operating mode of the modulation / demodulation unit tion signal to be modulated from a supplied digital signal can be formed.

This further ensures that at an output of the device has a digital signal can be tapped or applied. The digital signal can be in a format in accordance with any predetermined Ko tion protocol, for example, according to the protocol format of the Ethernet or Universal Serial Bus (USB), or a further arbitrary protocol format such as a local communication network (Local Area Network LAN).

Preferably, in the coupling element, a protective element is included to protect against faults, eg against surges to protect the coupling element and connected to the coupling element further circuit parts from damage.

Preferably the protection element is an overvoltage protection.

An embodiment of the invention is illustrated in the figures and will be explained in more detail below.

Show it

Figure 1 is a diagram of the device according to a first embodiment;

Figure 2 is a sketch of a power supply network with a base station and a device connected to the power supply network house with a device according to the

State of the art;

Figure 3 is a sketch of a power supply network with a base station and a device connected to the power supply network house with a device according to the

Embodiment;

Figure 4 is a sketch of an apparatus according to another embodiment.

Figure 3 also shows how Figure 2 using the same reference numerals for the same components, the base station 203, which is connected via the interface 204 with the power supply mains two hundred and first Further, the house 202 is connected via the home terminal 212 to the power supply mains two hundred and first

In contrast to the prior art, the signal to be modulated is not at the home terminal 212, the counter 216 or injected between or extracted, but the first signal is first transformed in a process described in the further power supply 301 to the second signal and modulating the signal is injected into the power supply 301 or decoupled.

It is directly the first signal 215, which contains the carrier signal 220 and the signal to be modulated 221, each having a power supply 301, which is contained in a computer 300, respectively.

The structure of the power supply 301 is shown in detail in Fig.l.

So the first signal 215 has the carrier frequency signal and the signal to be modulated.

The first signal 215 is supplied to the power supply 301 of the computer 300 via a first terminal of the one hundred and first To the first terminal 101 is a voltage transformation element 102 is connected with the first signal 215, which is a 220 V DC voltage signal having a frequency of 50 Hz, is transformed to a 5 V voltage signal 103, which at a second terminal 104, mationselement with the Spannungstransfor- 102 is connected, can be tapped.

Further, a coupling element 105 is connected to the first terminal 101, which is configured such that the modulated signal 106 is determined by demodulators lation of the first signal 215 and can be tapped via a related with the coupling element 105 third terminal 107th The power supply unit 301 thus has clearly both the voltage transformation element 102 and the coupling element 105.

The third terminal 107 is configured to transmit the modulated signal as a coaxial connection.

Thus, from the signal to be modulated 217, a digital signal may be a modem card 303 which is connected via a a coaxial cable at 304 to the third terminal 107, are formed 305, which for a processor 306 via a bus 307 to the modem card 303 is connected, is processable.

Further, a memory 308 of the computer 300 is connected to the bus 307th

Via a bus 307 also connected to the input / output interface 309 is connected via a first line 310, a screen 311, and via a second line 312, a

Keyboard 313 and via a third line 314, a computer mouse 315 to the computer 300 is connected.

In this way it is possible without further action in a house directly over a network connection, ie a Stekker, the electronic data which have been modulated on the power signal to tap to this then that is the first electrical in the power supply 301 of the power signal, demodulate signal and thus be able to process the electronic data, ie text, voice, images or data.

Fig. Shows an alternative embodiment of the power supply 301 of Figure 1.

In the power supply unit 401, a first terminal 402 is provided, the first signal 215 is fed. With the first check circuit 402, the voltage transformation element 404 is connected. With the voltage transformation element is a low voltage signal of the size is 5 V 404 the first signal 215 is formed with 220 V AC voltage and can be tapped off via the second check circuit 405 which is connected to the voltage transformation element 403rd

To the first terminal 402, the coupling element 406 is further connected, wherein by the coupling element 406 by demodulation tion signal to be modulated is determined 106 from the first signal 215th

To the third terminal 408, the modem card 409 is in the power supply 401 still connected, with the signal to be modulated is converted into the digital signal 410 will 407th Via a fourth terminal of the power supply 411, the digital signal 410 is directly picked up. The modem card 409 is further connected to the second terminal 405 over which the modem card 409, the low voltage signal of 5 V size 404 is fed.

Thus, in this embodiment, the processor 306 can be connected via the bus 307 to the power supply 301, four hundred and first

The embodiments described above assume that the communication to the computer 300 is carried out.

However, data fed from the calculator 300 in the power supply system 201, so the digital signal 410 in the modem card 303, 409 through the third check circuit 107, 408 is supplied as a signal to be modulated 217, 407 the coupling element 105, 406 accordingly.

In the coupling member 105, 406, 401, the signal to be modulated 217 402 of the power adapter 301 is in this mode of operation of the power supply 301, 407 modulated on the carrier frequency signal and via the first port 101, 401 is fed directly to the power grid 201 via the home terminal 212th This means that a bidirectional communication is possible using the apparatus, so that the apparatus is constructed such that provided in the coupling element, both a modulation of the signal to be modulated onto the carrier frequency signal and a demodulation of the signal to be modulated from said first signal is , according to the required direction.

Further, it should be emphasized that any type of modulation can be used.

It can be used both amplitude modulation, frequency modulation or phase modulation.

It is further noted that the AC adapter 301, 401 may not necessarily be contained in a computer 300, but it may Zung control directly with a other technical device, such as a TV, a washing machine or a Hei or be connected to a network computer.

The communication protocol for the transmission of digital data may be any communication protocol, such as the Transport Control Protocol / Internet Protocol (TCP / IP) einge- be set.

It is envisaged in an alternative of execution described above, approximately examples that any number of further connections are provided on the power supply, said further ports are connected to the voltage transformation element and to the other terminals further voltage signals can be tapped, for example a 10 V -Gleichspannung or voltages other definable values.

Further, it is provided in one alternative, that only a part of the functional modules of the modulation demodulation unit, for example, a unit is included for analog modulation tion signal processing, and other parts of the modulation-demodulation unit is realized in a connected with the apparatus electrical device. It can also be used functional modules for the modulation-demodulation unit, which are included in the electric device, such as electronic components for signal processing or processors.

Under this document, the following publications were cited:

[1] GB 2272350 B

[2] D. Clark, Powerline Communications:

Finally ready for prime time ?, IEEE Internet Computing,

January, February 1998, pages 10-11, 1998

[3] brochure from Northern Telecom and Norweb,

Digital Power Line: a major new business opportunity for power utilities worldwide, Communications Digital Power Line, Published March 18, 1998

Claims

Patentanspr├╝che
1. An apparatus for transforming a first electrical signal to at least one second electrical signal, WO at the first signal a Trägerfrequenzsignal and a signal to be modulated comprises, a) with a first Anschluß, at which the first signal can be tapped, b) with a connected to the first Anschluß voltage transformation element for transformation of the first signal to the second signal, c) with a connected to the first coupling element Anschluß for determining the signal to be modulated from the first signal, d) a second Anschluß connected with the mationselement Spannungstransfor- at which second Anschluß the second signal can be tapped off, and e) with a third Anschluß which is connected with the coupling element to which the third Anschluß the modulieren- to de signal can be tapped.
2. Device according to claim 1,
- wherein the coupling element is zusätzlich-frequency signal set up to form the first signal from the signal to be modulated and the Trägerfre-,
- in the third Anschluß signal to be modulated is zuführbar.
3. A device for transforming a modulated electrical signal to see a first electrical signal, said first signal comprises a Tr├ñgerfrequenzsignal and a signal to be modulated, a) with a first Anschlu├ƒ, at which the first signal can be tapped, b ) with a connected to the first Anschlu├ƒ voltage transformation element for transformation of the first signal to at least one second signal, c) with a connected to the first coupling element Anschlu├ƒ to form the first signal from the signal to be modulated and the Tr├ ñgerfrequenzsignal, d) with a second Anschlu├ƒ connected with the mationselement Spannungstransfor- at which second Anschlu├ƒ the second signal can be tapped off, and e) with a third Anschlu├ƒ which is connected to the coupling element to which third Anschlu├ƒ signal to be modulated is zuf├╝hrbar.
4. The device according to one of Anspr├╝che 1 to 3, wherein the signal to be modulated is a communication signal.
5. Device according to one of Ansprüche 1 to 4, with a coupling element connected to the modulation / demodulation unit is set up such daß
- in a first operating mode of the modulation / demodulation, a demodulated digital signal from the signal to be modulated can be determined,
- in a second operating mode of the modulation / demodulation of a signal to be modulated digital signal can be formed zugef├╝hrten
6. Device according to one of Ansprüche 1 to 5, wherein the coupling element includes at least a protective element for the protection of the coupling element enthält before Störungen.
7. The device according to claim 6, wherein the protection element is an overvoltage protection ├ £.
8. Device according to one of Ansprüche 1 to 7, at least one further Anschluß is provided in which is connected to the voltage transformation element and to which a further electrical signal can be tapped.
9. Device according to one of Ansprüche 1 to 8, used in an electric Gerät.
PCT/DE1999/002293 1998-07-27 1999-07-26 Electric power supply with a device for coupling data signals to a mains supply WO2000007304A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19833714 1998-07-27
DE19833714.0 1998-07-27

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WO2000007304A3 true WO2000007304A3 (en) 2000-06-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001067630A1 (en) * 2000-03-08 2001-09-13 Ascom Powerline Communications Ag Coupling of a head station to a low-voltage power supply network
DE102004046186A1 (en) * 2004-09-23 2006-04-06 Siemens Ag Conversion module for use in power line communication, especially on board a ship, has an interface that converts communications bus data into I2C or SM bus data or vice versa
US7091831B2 (en) 2001-10-02 2006-08-15 Telkonet Communications, Inc. Method and apparatus for attaching power line communications to customer premises
USRE40492E1 (en) 2000-02-10 2008-09-09 Telkonet Communications, Inc. Power line telephony exchange

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186873A (en) * 1978-04-25 1980-02-05 Russel W. Geisler Humidity control system and circuitry
GB2116406A (en) * 1982-02-26 1983-09-21 Casio Computer Co Ltd Pulse code-transmitting apparatus
WO1995015036A1 (en) * 1993-11-24 1995-06-01 Remote Metering Systems Ltd. Method and apparatus for signal coupling at medium voltage in a power line carrier communications system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4186873A (en) * 1978-04-25 1980-02-05 Russel W. Geisler Humidity control system and circuitry
GB2116406A (en) * 1982-02-26 1983-09-21 Casio Computer Co Ltd Pulse code-transmitting apparatus
WO1995015036A1 (en) * 1993-11-24 1995-06-01 Remote Metering Systems Ltd. Method and apparatus for signal coupling at medium voltage in a power line carrier communications system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40492E1 (en) 2000-02-10 2008-09-09 Telkonet Communications, Inc. Power line telephony exchange
WO2001067630A1 (en) * 2000-03-08 2001-09-13 Ascom Powerline Communications Ag Coupling of a head station to a low-voltage power supply network
US7091831B2 (en) 2001-10-02 2006-08-15 Telkonet Communications, Inc. Method and apparatus for attaching power line communications to customer premises
DE102004046186A1 (en) * 2004-09-23 2006-04-06 Siemens Ag Conversion module for use in power line communication, especially on board a ship, has an interface that converts communications bus data into I2C or SM bus data or vice versa

Also Published As

Publication number Publication date Type
WO2000007304A3 (en) 2000-06-22 application

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