Broadband power line carrier communication implementation method and device

Abstract

The invention discloses a broadband power line carrier communication implementation method, which comprises the following steps of: coupling a power line access signal to obtain a communication signal; performing adaptive filtering on the communication signal to remove a high-frequency signal and a noise signal; performing anti-interference processing on the filtered signal, and further removing an interference signal; carrying out windowing interpolation processing on the signal after anti-interference processing to acquire frequency domain information of the signal; and decoding the processed signal to obtain related data, packaging the related data according to other communication protocols, and transmitting the packaged related data to the outside. The invention further discloses an implementation device based on the method. The implementation device comprises a signal coupling module, a signal anti-interference and filtering module, a signal demodulation and decoding module and adata conversion and sending module. According to the invention, the interference of noise on signals can be effectively removed and suppressed, the signal analysis level of power line communication isimproved, the overall quality of power line communication transmission is improved, and a guarantee is provided for the application of a broadband power line communication technology.

Description

technical field [0001] The invention belongs to the field of electric power automation, and in particular relates to a method and device for realizing broadband power line carrier communication. Background technique [0002] The power line is the most popular physical medium with the widest coverage. It uses power lines as the communication medium and does not require communication line construction and communication line maintenance. It is an ideal information transmission carrier for smart distribution networks and smart power consumption fields. . [0003] In the early days, narrowband in-line communication and narrowband power line communication were mainly used. The frequency band was limited between 3kHz-500kHz, and the communication rate was less than 1Mbit / s. Signal modulation methods such as FSK, S-FS, and OFDM were generally used. [0004] With the development and construction of the smart grid, narrowband power line communication can no longer meet the needs of c...

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Problems solved by technology

[0006] Aiming at the problem that electromagnetic interference and noise signals affect the quality of line communication and information interaction in broadband power line communication, the purpose of the present invention is to provide a broadband power line carrier communication method, which can effectively remove and suppress the interference of noise on the signal, and improve the efficiency of power line communication. The overall quality provides a guarantee for the application of broadband power line communication technology

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