Self-networking method and communication system based on tree network as well as node and gateway

A tree network and ad hoc network technology, applied in the field of data transmission, can solve problems such as cumbersome networking process

Active Publication Date: 2018-01-12
BEIJING QDING INTERCONNECTION TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an ad-hoc network method, node, gateway and communication system based on a tree network, which can realize automatic network entry of newly added nodes, in view of the above-mentioned cumbersome defects of the prior art.

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  • Self-networking method and communication system based on tree network as well as node and gateway
  • Self-networking method and communication system based on tree network as well as node and gateway
  • Self-networking method and communication system based on tree network as well as node and gateway

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Embodiment Construction

[0045] First of all, the present invention designs a communication protocol aimed at low speed, low data volume, low power consumption, and has a certain tolerance to delay. This protocol is implemented based on a tree network, and includes three types of Equipment: 1. Gateway, corresponding to the root of the tree; 2. Relay node, corresponding to the branch / trunk; 3. Common node, corresponding to the leaf. Among them, the gateway is used to gather all nodes and access the Internet. The difference between a relay node and a normal node is: the relay node is powered by the mains, and it can correspond to multiple subordinate sub-nodes and sub-sub-nodes, while its upper-level node is only one, called the parent node; the normal node is located in the network At the most edge, it has only parent nodes but no child nodes, and does not relay packets from other nodes, so it can be powered by batteries and is a low-power device. Ordinary nodes are usually in a dormant state, and are...

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Abstract

The invention relates to a self-networking method and a communication system based on a tree network as well as a node and a gateway. The self-networking method comprises the following steps of receiving a first in-network communication packet sent by a second node having access to a network when the a first node has access to the network for the first time, wherein a packet header part of the first in-network communication packet includes a node level of the second node and a node address of a third node; determining the own node level and generating a data part of a network access application packet according to the own MAC address and the own node level, generating a packet header part of the network access application packet according to the node level of the second node and the node address of the third node and sending the network access application packet to the gateway; receiving a network access approval packet which is sent from the gateway by the second node; and judging whether the MAC address in the network access approval packet is consistent with the own MAC address, and if yes, recording the own node address, the node level and the node address of a father node. Through implementation of the technical scheme of the invention, the automatic network access of a new node can be realized.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to an ad hoc network method based on a tree network, a node, a gateway and a communication system. Background technique [0002] In the Internet of Things, data transmission is a crucial link in various data acquisition systems. The way of data transmission is gradually developing from wired to wireless. Compared with wired transmission, wireless transmission has low overall cost, stable performance, Flexible networking, easy to expand and other advantages, and can break through the application restrictions in complex geographical environments, so the wireless data transmission network that is easy to implement and has high reliability occupies a pivotal position in the field of data transmission, which is mainly reflected in the networking method and its data transfer protocol. [0003] At present, for wireless transmission, it is generally realized by establishing a dedicated dat...

Claims

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Application Information

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IPC IPC(8): H04L12/703H04L12/741H04L12/24H04L12/44H04L29/06H04L45/28H04L45/74
Inventor 宋政斌
Owner BEIJING QDING INTERCONNECTION TECHNOLOGY CO LTD
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