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A low-voltage power line carrier communication route selection method

A low-voltage power line, carrier communication technology, applied in distribution line transmission systems, electrical components, digital transmission systems, etc., can solve problems such as limited improvement space

Pending Publication Date: 2019-01-22
GUANGDONG POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At first, some scholars believed that the way to improve the reliability of the communication network was to improve the physical layer. The results showed that the reliability of the communication was indeed improved to a certain extent to meet the actual needs, but the improvement of the performance of the physical layer was also restricted by many factors. Therefore Room for improvement is limited

Method used

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  • A low-voltage power line carrier communication route selection method
  • A low-voltage power line carrier communication route selection method
  • A low-voltage power line carrier communication route selection method

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Experimental program
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Embodiment

[0053] A low-voltage power line carrier communication routing method, comprising the following steps:

[0054] S1: The communication information table of each node is initialized; the communication information table of a communication node refers to the communication address information of other nodes that can directly communicate with this node without using other nodes as relays. These address information are placed in this node in the form of a table in the node. The initialization of the communication information table is the process that each node in the network obtains the address information of other nodes that can communicate with itself by sending corresponding communication data frames.

[0055] Step S1 specifically includes:

[0056] s11: Designate node i, when node i sends a data frame, other nodes in the network monitor the signal on the low-voltage power line; since the communication channel of the power line is shared, when multiple nodes initiate communication...

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Abstract

The present invention relates to the technical field of electric power communication, and more particularly, to a low-voltage power line carrier communication routing method. As that communication information table of each node is initialized, the concentrator node sends out a probe path data frame to search for its communication path to each node, establishment of objective function for path optimization, optimizing the path from the concentrator to each node and selecting the optimal and suboptimal paths being used as the main path and the backup path of the route, without knowing the connection relationship between concentrator and meter, the algorithm can identify the unknown communication network by fast searching, and find the optimal communication route from concentrator to meter.

Description

technical field [0001] The present invention relates to the technical field of electric power communication, and more specifically, relates to a low-voltage power line carrier communication routing method. Background technique [0002] Power line carrier communication uses the low-voltage distribution network line as the communication channel, and uses a certain modulation method to load data into a specific carrier signal. The modulated signal is transmitted to the receiving end through a non-communication line, and the receiving end passes through a dedicated power line modem. A technology that separates high-frequency signals from power lines and transmits them to terminal equipment. The advantage of power line carrier communication is that there is no need to erect lines, and signal transmission can be carried out as long as there are power lines. Therefore, at present, the downlink communication of centralized reading systems at home and abroad, that is, the communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/751H04L12/707H04L12/721H04L12/727H04L12/741H04B3/54H04L45/02H04L45/121H04L45/24H04L45/74
CPCH04B3/54H04L45/02H04L45/121H04L45/22H04L45/26H04L45/74
Inventor 卫建均李一新李剑桥梁权波陈莉妍廖敏虹邓涛
Owner GUANGDONG POWER GRID CO LTD