Carrier wave communication device of power line and carrier wave communication method thereof

Abstract

The invention relates to a carrier wave communication device of a power line and a carrier wave communication method thereof. The carrier wave communication device of the power line comprise a currenttransformer, a signal conditioning circuit, an analog-to-digital conversion circuit, a communication interface, a carrier wave processor and a power module, wherein the current transformer is used for coupling carrier wave current signals to the power line or / and taking the carrier wave current signals and power frequency signals out of the power line; the input end of the signal conditioning circuit is connected with the output end thereof; the input end of the analog-to-digital conversion circuit is connected with the output end of the signal conditioning circuit, and the analog-to-digitalconversion circuit is used for converting the carrier wave current signals; the communication interface is used for transmitting and receiving data; the carrier wave processor is used for managing thecarrier wave communication device of the power line; and the power module is used for supplying power to the carrier wave communication device of the power line. Because the carrier wave current signals pass through a signal coupler, the carrier wave communication of the power line can be performed through only one power line, and then the carrier wave communication device can thoroughly solve the technical problem of unreliable communication of the carrier wave communication device on a medium and low voltage power line in the prior art.

Description

technical field [0001] The present invention relates to a power line carrier communication device and method, in particular to a power line carrier communication device and a carrier communication method based on AC / DC transmission lines such as low voltage, medium voltage, high voltage, ultra-high voltage, and ultra-high voltage. Background technique [0002] In the prior art, low-voltage, medium-voltage, high-voltage, ultra-high voltage, ultra-high voltage and other AC and DC power lines (the power lines include cables and overhead wires for power transmission) carrier communication devices, without exception, are used on two power lines, or It is a transmission line in the high-voltage line and the earth, and the carrier signal is connected in parallel to carry out the carrier communication. With the increase of the voltage level, the price of the hardware equipment for realizing the power carrier communication increases geometrically. The carrier signal refers to an info...

AI Technical Summary

Problems solved by technology

[0007] For this reason, what the present invention intends to solve is the technical problem of unreliable communication caused by the installation of carrier communication equipment in the prior art on the existing medium and low voltage power lines, and provides a kind of communication system that can realize reliable communication on power lines of any voltage level. Power line carrier communication device and method

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