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Automatic relay networking method in electric line carrier communication

A technology of power line carrier and automatic relay, which is applied in the field of communication, can solve the problems of low communication rate of power line carrier, network conflict, and influence on network scalability and network performance, so as to reduce maintenance workload and cost, reduce conflict and delay time, the effect of reliable communication distance

Inactive Publication Date: 2010-06-16
成都华立达信息技术有限公司
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AI Technical Summary

Problems solved by technology

[0005] Existing table-driven and on-demand routing protocols will generate a lot of overhead when solving routing problems, which affects the scalability and performance of the network
Power line carrier communication itself has the characteristics of low rate. If the overhead is too much, it will inevitably increase the conflict of the network, which will cause serious consequences.

Method used

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  • Automatic relay networking method in electric line carrier communication
  • Automatic relay networking method in electric line carrier communication

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Embodiment Construction

[0041] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] The automatic relay networking method in the power line carrier communication provided by the present invention includes two processes of route discovery and route maintenance;

[0043] The route discovery process can be divided into the following specific steps: A, the central node actively initiates a route search request to search for common nodes that can communicate directly with the central node; B, the central node initiates a route search request, and the search requires relay forwarding Ordinary nodes that can only communicate;

[0044] The route maintenance process can be divided into the following steps: a. The central node performs route maintenance in the order of first maintaining the routing information that has not been maintained for the longest time; b. The central node first initiates the routing of the route that has not been...

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Abstract

The invention discloses an automatic relay networking method in electric line carrier communication, which comprises a route finding part and a route maintaining part. The route finding part is performed by two cycles: cycle 1, finding a common node which can be directly communicated with a central node; and cycle 2, finding a node which can be communicated by the transfer of a relay node. In the whole route finding process, the processing on the carrier interception, conflict avoidance and optimum path problems among the nodes is realized. At the route maintaining stage, the optimum path is managed, and the path is ensured to be stable and smooth. By adopting the method, the invention can effectively solve the problems of conflict and optimum path in the self networking process, and enables the carrier communication based on the electric line to be stable and high-efficient.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for realizing an ad hoc network between equipment terminals in a low-voltage power line. Background technique [0002] Power line carrier communication (PLC) uses the existing low-voltage power line network as a channel to transmit analog or digital signals through carrier waves. It has the characteristics of no additional wiring, low cost, and convenient use and maintenance. It is widely used in power meter reading systems. middle. However, in the current carrier collection system used in China, when the concentrator cannot directly communicate with the target collector, manual relay or semi-automatic relay is generally used to solve this problem. However, the artificial relay method cannot perform self-adaptive adjustment of the relay module and relay path according to the copying situation, and it is increasingly unable to meet the needs of site expansion and ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L1/18H04B3/54H04L45/74
Inventor 杜小波王更生周波鄢知辉李毅刘贵松付晓杨俊
Owner 成都华立达信息技术有限公司
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