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Method for dynamically transmitting power line carrier wave information and processing module thereof

A power line carrier and processing module technology, which is applied in the distribution line transmission system, electrical components, transmission system, etc., can solve the problems of longer information packets and lower signal frequency, and achieve strong anti-interference ability, strong communication ability, and successful high rate effect

Inactive Publication Date: 2010-12-22
虞立信
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The above characteristics of the power line are a pair of great contradictions: to pass through the bottleneck of interference, the data packet must be reduced, and to obtain a good transmission effect, the signal frequency must be reduced. The result of frequency reduction is that the information packet becomes longer. spread spectrum and frequency modulation technology, it is difficult to solve this contradiction

Method used

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  • Method for dynamically transmitting power line carrier wave information and processing module thereof
  • Method for dynamically transmitting power line carrier wave information and processing module thereof
  • Method for dynamically transmitting power line carrier wave information and processing module thereof

Examples

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Embodiment Construction

[0039] The invention provides a method for dynamically transmitting power line carrier information.

[0040] This technology is to achieve long-distance transmission (low-frequency characteristics), multi-frequency points (anti-same-frequency interference), highly compressed data and broken information (simplified structure, for 50Hz alternating current, the length of the data packet sending cycle is much less than 10ms), which is The core technical idea of ​​DCP technology. Taking the 50Hz low-voltage alternating current situation as an example, the method of the present invention is described in detail as follows through the following examples:

[0041] Let S be a frame of information required to be transmitted, i=1, 2,..., i<30, decompose S into limited information sequences S1, S2,..., each Si is packaged into Si' is the smallest information unit in this case, referred to as 'package', It is highly compressed information, which includes packet header, signature word, da...

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Abstract

The invention discloses a method for dynamically transmitting power line carrier wave information and a processing module thereof for realizing the high speed and real time transmission of information with high success rate and strong communication ability. The invention utilizes the technical scheme that an information data frame to be transmitted is compressed and split into a string of data packets, and the period for transmitting each data packet on the power line is less than the interference period of alternating current on the power line; and coding transmission is carried out on the data packets through the mode of repeated and multiple transmission. The decoding processing, such as error correction, unpacking, combination, and the like, is carried out on the data packet at the information receiving end in order to restore data. The invention is mainly used for low voltage power line communication, such as automatic meter reading, street lamp monitoring, environment (safety) monitoring, and the like.

Description

technical field [0001] The invention relates to a processing technology for power line carrier information transmission. Background technique [0002] Meter reading with power line carrier technology has been the dream of scientific and technological personnel for more than 20 years. In recent years, various carrier solutions that have appeared on the market cannot meet the requirements of random (that is, real-time) meter reading, and the speed is too slow to be suitable for large-scale regular meter reading. The main reason is that the power grid The time-varying interference source destroys the integrity of the information, and there is a phenomenon that the copying cannot be received. The domestic power supply department currently uses products that take several days to copy back the data. If real-time meter reading can be realized, the coverage of centralized meter reading at home and abroad will be greatly improved, accompanied by a substantial improvement in the level...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04L12/56H04L12/931
Inventor 陈仲钱虞立信
Owner 虞立信
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