Relaying method of power line communication network

A power line communication and power line network technology, applied in the relay field of power line communication network, can solve the problems of increasing the probability of data collision and conflict, reducing the available bandwidth of power lines, etc.

Inactive Publication Date: 2011-01-05
SHENZHEN YESTUNED IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amplification of the transmitted signal by the repeater will reduce the availa

Method used

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  • Relaying method of power line communication network
  • Relaying method of power line communication network
  • Relaying method of power line communication network

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Embodiment 1

[0026] General power line network includes tree, ring, chain, such as figure 1 Shown is a power line network topology diagram. In this figure, it is assumed that the power modules of each node have just been started, so the central node does not have any node routing information. 1 is the central node, and 2 to 10 are slave nodes. Now we use this method to get the relay node to the destination node 5. Here, node 1 can communicate directly with nodes 2, 3, 6, and 10, and node 3 can communicate directly with nodes 4, 5. 2 and 3, 4 can communicate directly, and 4 and 5 can communicate directly. As shown in the figure, if we do not use relay, the central node cannot transmit information to node 5. Here we use the method of the present invention to enable the central node 1 to communicate with the slave node 5 and ensure the shortest relay hops.

[0027] Step 1: The central node first finds that there is no routing information to the destination node, then broadcasts a REQ pack...

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Abstract

The invention provides a relaying method of a power line communication network, which can extend the communication distance of a power line network in a hop-by-hop mode by selecting and using relay nodes. The method does not need any relay equipment but only one software module among nodes, and the software module is used for obtaining the relay nodes from a central node to a destination node. The method can realize the reliable transmission of data in the long-distance condition, thereby improving the efficiency of the network.

Description

【Technical field】 [0001] The invention relates to a relay method in a power line communication system, that is, how to realize long-distance transmission of data and improve system reliability under the condition of time-varying channel environment of the power line system. 【Background technique】 [0002] Power line communication refers to the method of transmitting analog or digital signals on the power line through the carrier mode, and is a unique communication method of the power system. In recent years, domestic and foreign power companies and related scientific research institutions are actively carrying out research on using power lines as the transmission medium to realize high-speed transmission of information, thereby providing services for power enterprise informatization. The most basic performance of power line communication is determined by the carrier chip, which is the progress of semiconductor technology, including reducing transmission power, improving rece...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04B3/54H04L12/721
Inventor 李智
Owner SHENZHEN YESTUNED IND
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