Power line communication signal reconstruction method

A technology of power line communication and signal reconstruction, applied in the direction of signal transmission/reception through power distribution, distribution line transmission system, electrical components, etc., can solve problems such as data loss

Active Publication Date: 2018-11-23
GUANGDONG UNIV OF PETROCHEMICAL TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a power line communication signal reconstruction method to solve the problem of missing data in the prior art when PLC signals are transmitted through medium and low voltage power networks

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Embodiment Construction

[0044] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0045] The invention provides a power line communication signal reconstruction method aiming at the problem of missing data in existing PLC signals transmitted through a medium and low voltage power network.

[0046] like figure 1 As shown, the power line communication signal reconstruction method provided by the embodiment of the present invention includes:

[0047] S101, collecting a power line communication signal sequence and converting it into a two-dimensional signal;

[0048] S102, decompose the two-dimensional signal, and obtain the decomposition coefficient of the power line communication signal;

[0049] S103, calculating the actual marginal probability distribution of each parameter in the decomposition coefficient and the mean value and mea...

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Abstract

The present invention provides a power line communication signal reconstruction method. With the power line communication signal reconstruction method adopted, a power line communication signal sequence with no missing data can be generated by means of reconstruction. The method includes the following steps that: a power line communication signal sequence is collected and is converted into a two-dimensional signal; the two-dimensional signal is decomposed, so that a power line communication signal decomposition coefficient is obtained; the actual edge probability distribution of each parameterin the decomposition coefficient as well as the mean and mean square error of the parameters are calculated; and the power line communication signal decomposition coefficient is adjusted according tothe actual edge probability distribution of each parameter in the decomposition coefficient as well as the mean and mean square error of the parameters; and a power line communication signal sequencewith no missing data can be generated according to the adjusted power line communication signal decomposition coefficient. The method of the invention belongs to the electric power field.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a power line communication signal reconstruction method. Background technique [0002] Compared with various wired communication technologies, Power Line Communications (PLC) has the advantages of no need for rewiring and easy networking, and has broad application prospects. The 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. Including the regulated bandwidth of CENELEC in Europe (3~148.5kHz), the regulated bandwidth of the U.S. Federal Communications Commission (FCC) (9~490kHz), and the regulated bandwidth of the Association of Radio Industries and Businesses (ARIB) in Japan ( 9~450kHz), and China's speci...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54
CPCH04B3/542H04B2203/5404
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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