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A PLC signal reconstruction method and system using multi-regular optimization theory

An optimization theory and signal reconstruction technology, applied in the field of PLC signal reconstruction methods and systems, can solve problems affecting the performance of PLC communication systems, data transmission interruption of transceiver devices, and data loss in power line communication systems, etc.

Inactive Publication Date: 2021-05-04
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

[0003] Although the power line communication system has a wide range of applications and the technology is relatively mature, a large number of branches and electrical equipment in the power line communication system will generate a lot of noise in the power line channel; among them, random impulse noise has great randomness, and the noise intensity High, causing serious damage to the power line communication system. The transceiver device of the power line communication system works in such a severe channel environment, which will cause the data transmission interruption of the transceiver device for a long time, resulting in data loss.
[0004] With the application and popularization of nonlinear electrical appliances, the background noise in the medium and low voltage power transmission and distribution network presents more obvious non-stationary and non-Gaussian characteristics, which makes the phenomenon of data loss in the power line communication system more serious, and the communication quality drops significantly. Seriously affects the performance of the PLC communication system

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  • A PLC signal reconstruction method and system using multi-regular optimization theory
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] figure 1 Schematic flow chart of a PLC signal reconstruction method using multi-regular optimization theory

[0023] figure 1 It is a schematic flowchart of a PLC signal reconstruction method utili...

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Abstract

The embodiment of the present invention discloses a PLC signal reconstruction method and system utilizing multi-regular optimization theory. The method includes: step 1, inputting the measured PLC signal sequence S; The signal sequence S is reconstructed, and the reconstructed signal sequence is S NEW ; Specifically, S NEW =B OPT +[S T S] ‑1 (S‑Lu OPT ); where, B OPT is the best prediction vector; u OPT is the best correction vector; L is the correction matrix.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a PLC signal reconstruction method and system. Background technique [0002] Compared with various wired communication technologies, power line communication has the advantages of no need for rewiring, easy networking, etc., and has broad application prospects. Power line communication technology is divided into narrowband power line communication (Narrowband over power line, NPL) and broadband power line communication (Broadband over power line, BPL); narrowband power line communication refers to the power line carrier communication technology with a bandwidth limited to 3k ~ 500kHz; power line communication technology includes The specified bandwidth of CENELEC in Europe (3 ~ 148.5kHz), the specified bandwidth of the US Federal Communications Commission (FCC) (9 ~ 490kHz), the specified bandwidth of the Japan Association of Radio Industries and Businesses (ARIB) (9 ~450kHz), and ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B3/54
CPCH04B3/54H04B2203/5404
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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