Encoding error correction method of power line power frequency communication

A technology for power frequency communication and coding error correction. It is applied in the direction of error correction/detection using linear codes, coding, and error correction/detection using block codes. It can solve the problems of low accuracy, high coding error rate, low efficiency, etc. question

Active Publication Date: 2017-03-15
MAOMING POWER SUPPLY BUREAU GUANGDONG POWER GRID CORP
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[0004] Based on this, it is necessary to provide a power line frequency communication coding error correction method for th

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  • Encoding error correction method of power line power frequency communication
  • Encoding error correction method of power line power frequency communication
  • Encoding error correction method of power line power frequency communication

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Embodiment Construction

[0041] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a thorough and comprehensive understanding of the disclosure of the present invention.

[0042] In one embodiment, such as figure 1 As shown, a power line frequency communication coding error correction method of an embodiment includes the following steps:

[0043] Step 104, receiving the R(x) code.

[0044] Specifically, the R(x) code is a polynomial R(x), and the polynomial R(x) is received by the receiving end. For example, the receiving end receives a data packet, which contains the polynomial R(x).

[0045] Step 106, calculating the syndrome S(x)...

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Abstract

The invention relates to an encoding error correction method of power line power frequency communication. The method comprises the following steps: receiving a R (x) code, calculating a syndrome S (x) according to the received R (x) code, calculating an error position polynomial sigma (x) according to the syndrome S (x), solving a root of the polynomial sigma (x) to acquire an error position number, calculating an error pattern E (x) according to the error position number, and calculating a C (x) code with errors corrected through the R (x) code and the error pattern E (x). By adoption of the encoding error correction method provided by the invention, random errors and burst errors can be corrected, the encoding error correction efficiency is effectively improved, and the accuracy of the power line power frequency communication is effectively improved.

Description

technical field [0001] The invention relates to the technical field of power line power frequency communication, in particular to a coding error correction method for power line power frequency communication. Background technique [0002] Power line power frequency communication uses small distortions of grid voltage and current waveforms to carry information to achieve two-way communication. Since low-frequency distortion signals can be directly transmitted across transformer stations, this technology is expected to play an important role in distribution automation and other fields; at the same time, because power lines are not Special communication lines, the complex structure of the distribution network and the interference noise generated by various power loads will cause errors in power frequency communication data. In order to improve communication performance in a strong noise environment, error correction coding is a technical means that must be adopted . [0003] E...

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Application Information

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IPC IPC(8): H03M13/15
CPCH03M13/1525H03M13/1545
Inventor 赵必游朱子坤陈宏辉郭苑灵夏敏杨永王兴佳邱荣福李剑桥邓刘毅
Owner MAOMING POWER SUPPLY BUREAU GUANGDONG POWER GRID CORP
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