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A method for wideband carrier wave anti-jamming communication of power line

A broadband carrier and communication method technology, applied in the direction of power line communication system, distribution line transmission system, electrical components, etc., can solve the problems of poor anti-interference ability and poor reliability, so as to improve reliability, reduce interference and noise, avoid Effects of overload and power quality deterioration

Inactive Publication Date: 2018-12-21
SHANDONG ELECTRICAL ENG & EQUIP GRP XINNENG TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a power line broadband carrier communication method to solve the problems of poor reliability and poor anti-interference ability existing in the prior art

Method used

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  • A method for wideband carrier wave anti-jamming communication of power line
  • A method for wideband carrier wave anti-jamming communication of power line

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Experimental program
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Embodiment Construction

[0022] A power line broadband carrier anti-jamming communication method, such as figure 2 As shown, it includes the following steps: Step 1. Power-on self-test of the broadband carrier communication module. If it can start normally, go to step 2. If it cannot start normally, return to step 1;

[0023] Step 2, the broadband carrier communication modules respond to each other, and establish the underlying link through the handshake mechanism;

[0024] Step 3. Using OFDM technology, the broadband carrier communication frequency band is divided into several sub-channels for parallel transmission of data / signals in different frequency bands according to the preset bandwidth; figure 1 As shown, the broadband carrier communication frequency band is a communication frequency band of 2 MHz to 12 MHz.

[0025] Step 4, detecting interference and noise on the power line, and performing statistics on frequency band sub-channels containing interference and noise; transmitting data on freq...

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Abstract

The invention relates to a power line power line broadband carrier wave anti-interference communication method, which divides a broadband carrier wave communication frequency band into a plurality ofsub-channels of different frequency bands. The method comprises steps of detecting the interference and noise on the power line, and making statistics on the frequency band sub-channel containing interference and noise; transmitting data over a frequency band subchannel in which the sum of interference and noise does not exceed a first threshold,it can reduce the interference and noise in the transmission process and improve the reliability of communication, so that the monitoring unit can collect, count, analyze and evaluate the power system more effectively and omni-directionally, master thepower situation of the line and the user in real time, and avoid the bad or even extreme situations such as the overload of the power equipment and the deterioration of the power quality.

Description

technical field [0001] The invention relates to the technical field of electric power automation, in particular to a power line power line broadband carrier anti-interference communication method. Background technique [0002] From the perspective of power line communication applications, the trend of future applications in smart grids, home broadband access, and industrial control applications is becoming more and more obvious. At the same time, Internet of Things applications also provide an opportunity for communication platform cooperation. Together with other communication media, they are forming a complementary Multi-channel sensor networks, these have become an important driving force for the rapid development of broadband carrier communication technology. [0003] Although the power line broadband carrier communication technology has gradually matured and has a certain scale of application in the smart grid, but at present in the power line broadband carrier communic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04L5/00
CPCH04B3/542H04L5/0062H04B2203/5495
Inventor 刘宗振李军李洪全闫冠峰丁浩张猛商和龙张书源
Owner SHANDONG ELECTRICAL ENG & EQUIP GRP XINNENG TECH CO LTD
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