Method and system for power line communication and power line communication terminal
A power line communication and terminal technology, which is applied in the distribution line transmission system, wired transmission system, transmission system, etc., can solve the problems of inflexibility, upgrade, large existing circuit equipment, etc., and achieve the effect of reliable communication
Active Publication Date: 2020-12-18
河南省科学院应用物理研究所有限公司
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[0038] The core of this application is to provide a power line communication method, system and power line communication terminal. By reconstructing the signal processing circuit, the signal scheme and modulation and demodulation technology most suitable for the current power line channel conditions are used to ensure reliable communication between the two parties. .
[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of t...
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The application discloses a power line communication method. The method comprises the following steps: performing the exchange of key parameters required by the power grid channel detection of both communication sides according to a preset communication modulation way and a communication protocol, and performing the power grid channel detection according to the appointed channel detection waveform sequence after the exchange is finished; according to the result of the power grid channel detection, exchanging the parameter corresponding to the reliable communication according to the communication modulation way and the communication protocol; reconstructing a signal processing circuit according to the parameter; and performing the communication through the reconstructed signal processing signal. By using the method disclosed by the application, the reliable communication of both communication sides is determined by using the signal scheme and modulation / demodulation technology best for the current power line channel state by reconstructing the signal processing circuit; the application further discloses a power line communication system and a power line communication terminal having the above-mentioned beneficial effect.
Description
technical field [0001] The present application relates to the technical field of power line communication, in particular to a power line communication method, system and power line communication terminal. Background technique [0002] Power line carrier communication technology has been researched for decades, and it was first applied to solve the communication requirements required for dispatching and monitoring among important nodes of the power grid such as transmission trunk lines and distribution stations. With the development of smart grid technology, power line carrier communication technology is also used in the field of automatic meter reading. Generally, power line carrier communication is divided into three frequency bands: ultra-narrowband (0.3-3kHz), narrowband (3-500kHz) and broadband (1.8-250MHz), which can achieve communication rates from 100bps, 500Kbps to hundreds of megabits per second, and The transmission distances are 150Km, several kilometers and tens...
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IPC IPC(8): H04B3/54
CPCH04B3/542H04B3/546
Inventor 张鹰赵兰普王天宝庄春生韩晓河张洪敏刘新高岩
Owner 河南省科学院应用物理研究所有限公司