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Ad hoc network method, node, gateway and communication system based on tree network

A technology of tree network and self-organizing network, which is applied in the field of data transmission and can solve problems such as cumbersome networking process

Active Publication Date: 2019-08-30
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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  • Ad hoc network method, node, gateway and communication system based on tree network
  • Ad hoc network method, node, gateway and communication system based on tree network
  • Ad hoc network method, node, gateway and communication system based on tree network

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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 present invention relates to an ad hoc network method based on a tree network, a node, a gateway and a communication system. In the ad hoc network method, when the first node enters the network for the first time, in the initial state, it receives a message from the second node that has already entered the network. The first intra-network communication packet, the header part of the first intra-network communication packet includes the node level of the second node and the node address of the third node; determine its own node level, and generate according to its own MAC address and its own node level The data part of the network access application packet, and generate the 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 send the network access application packet to the gateway; receive the network access from the gateway sent by the second node Approval package; judge whether the MAC address in the network access approval package is consistent with its own, and record its own node address, node level and parent node node address if it is consistent. Implementing the technical scheme of the invention can realize automatic network access of newly added nodes.

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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Patent Type & Authority Patents(China)
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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