Method for data transmission from a transmitter to a receiver in an AC power supply system, and apparatus for data transmission with AC power supply systems
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The invention relates to a method for the data transmission from an emitter (1) to a receiver (2) in an AC voltage network, comprising a distributor (3) and at least one user group (4) with one or several users (5), wherein the emitter (1) feeds a signal to the AC voltage network by means of a power
The invention relates to a method for the data transmission from an emitter (1) to a receiver (2) in an AC voltage network, comprising a distributor (3) and at least one user group (4) with one or several users (5), wherein the emitter (1) feeds a signal to the AC voltage network by means of a power source (6).
대표청구항▼
1. A method for transmitting a data signal in a return channel from a transmitter arranged at a load in the direction of an AC voltage source to a receiver in an AC power supply system having a distributor and at least one load group with one or more loads, the transmitter comprises a current source
1. A method for transmitting a data signal in a return channel from a transmitter arranged at a load in the direction of an AC voltage source to a receiver in an AC power supply system having a distributor and at least one load group with one or more loads, the transmitter comprises a current source and a pulse generator, and the current source is connected in parallel to the load, the method comprising:generating via the pulse generator and the current source a current signal, with a predetermined or predeterminable pulse shape on a basis of the data signal, wherein the data signal comprises information about the status of the load,connecting the transmitter, via the AC power supply system, to the receiver so that the current source of the transmitter can transmit the current signal, along the AC power supply system to the receiver,supplying the current signal directly from the current source of the transmitter to the AC power supply system;receiving the current signal, which is transmitted along the AC power supply system, by the receiver; andrejecting crosstalk by the signal from the transmitter in a first load group to the receiver in a second load group via a series resonant circuit arranged in the distributor. 2. The method as claimed in claim 1, wherein the current source simulates an additional load. 3. The method as claimed in claim 1, wherein the signal is subjected to current FSK modulation. 4. The method as claimed in claim 1, wherein the signal is supplied close to or in the load. 5. The method as claimed in claim 1, wherein the transmitter and the receiver are synchronized using the zero crossing of the AC voltage. 6. The method as claimed in claim 1, wherein the signal is supplied independently of a zero crossing of the AC voltage. 7. The method as claimed in claim 1, wherein the receiver reads the signal from the AC power supply system using a shunt resistor. 8. The method as claimed in claim 1, wherein the signal is read close to the distributor. 9. An arrangement for transmitting a data signal in a return channel from at least one transmitter arranged at a load in the direction of an AC voltage source to a receiver in AC power supply systems, comprising an AC power supply system having a distributor and at least one load group with one or more loads,the transmitter,the receiver,wherein the transmitter comprises a current source and a pulse generator, and the current source is connected in parallel to the load, the pulse generator and the current source generate a current signal with a predetermined or predeterminable pulse shape on a basis of the data signal, wherein the data signal comprises information about the status of the load,the transmitter is connected to the receiver via the AC power supply system so that the current source of the transmitter can transmit the current signal, along the AC power supply system to the receiver,the current source of the transmitter is connected directly to the AC power supply system for supplying the current signal directly from the current source to the AC power supply system to be transmitted along the AC power supply system and to be received by the receiver,wherein the distributor has a series resonant circuit for rejecting crosstalk by the signal from the transmitter in a first load group to the receiver in a second load group. 10. The arrangement as claimed in claim 9, wherein the transmitter is integrated in the load or is arranged close to the load. 11. The arrangement as claimed in claim 9, wherein the transmitter comprises a current FSK modulator. 12. The arrangement as claimed in claim 9, wherein the receiver comprises a shunt resistor for reading the signal from the AC power supply system. 13. The arrangement as claimed in claim 9, wherein the receiver is arranged close to the distributor. 14. The arrangement as claimed in claim 9, wherein the series resonant circuit comprises a first and a second series resonant circuit. 15. The arrangement as claimed in claim 14, wherein said first series resonant circuit has a resonant frequency which corresponds to the first current FSK frequency. 16. The arrangement as claimed in claim 14, wherein said second series resonant circuit has a resonant frequency which corresponds to the second current FSK frequency.
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