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Ad hoc network method and system for power line carrier and wireless hybrid network

A technology of power line carrier and hybrid network, which is applied in the direction of distribution line transmission system, wired transmission system, transmission system, etc., can solve the problems of communication link communication reverse link data transmission failure, etc., to solve link asymmetry , high flexibility, and the effect of saving overhead time

Active Publication Date: 2018-02-23
深圳市北电仪表有限公司
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Problems solved by technology

[0006] Based on this, it is necessary to provide a power line carrier that can improve the quality of data two-way communication in order to solve the problem that the communication reverse link data transmission fails due to the asymmetry of the communication link in the traditional power line carrier communication and wireless communication. Ad hoc network method and system for wireless and wireless hybrid network

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  • Ad hoc network method and system for power line carrier and wireless hybrid network
  • Ad hoc network method and system for power line carrier and wireless hybrid network
  • Ad hoc network method and system for power line carrier and wireless hybrid network

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] Such as figure 1 Shown is a flow chart of an ad hoc network method for a power line carrier and wireless hybrid network in one embodiment. The ad hoc network method of the power line carrier and wireless hybrid network includes:

[0046] Step 102, after a sub-node that has not joined the network receives the network access permission command frame, acquires the link communication status between the sub-node and surrounding nodes that have already joined the network.

[0047] First of all, the main node of the concentrator should have two ports of power line carrier and wireless at the same...

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Abstract

The invention relates to a self-networking method and system for a power line carrier and wireless hybrid network. The method comprises the following steps: after a child node which does not access a network receives a network access permission command frame, acquiring the link communication states of the child node and surrounding network-accessing nodes; selecting network-accessing nodes with uplink and downlink link communication quality meeting a preset communication requirement, lowest levels and best communication quality respectively in carrier communication and wireless communication according to the link communication states, using the selected network-accessing nodes as father nodes of the child node, selecting a father node with the lowest level as a first father node from the two father nodes, and using the other father node as a second father node; and sending a network access request to the first father node, receiving a returned network access response, and ending networking till all nodes needing to be networked access the network. Through adoption of the method and the system, the problem of link asymmetry is solved, and bilateral data communication is realized. Moreover, when communication of the first father node is unsmooth, normal communication is ensured by switching to the second father node.

Description

technical field [0001] The invention relates to the field of power line communication, in particular to an ad hoc network method and system of a power line carrier and wireless hybrid network. Background technique [0002] Power line carrier communication has unique advantages in power system communication network. Its stable use conditions, good application prospects and potential huge market have attracted the attention of the world. [0003] For the low-voltage distribution network, the power line carrier communication generally has the following characteristics: 1) The time-varying nature of the communication channel. For the carrier signal, the low-voltage power line is a non-uniformly distributed transmission line. Any position in the distribution network is switched on and off randomly, which makes the channel show strong time-varying characteristics. The frequency selectivity of the communication channel is due to the characteristics of the low-voltage distribution ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W48/16H04W84/18H04B3/54
CPCH04B3/542H04B3/544H04W48/16H04W84/18
Inventor 王东林许剑明
Owner 深圳市北电仪表有限公司
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