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Internet of things endpoint data acquisition routing method

A technology for data collection and Internet of Things, applied in the field of telecommunications, can solve the problems of large energy consumption, waste of resources, high overhead, etc., and achieve the effect of reducing the amount of data, avoiding overlapping, and saving data transmission.

Inactive Publication Date: 2014-04-02
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

[0007] Existing wireless sensor network routing protocols cannot solve the implosion and overlapping problems of network information well, resulting in waste of resources, and routing maintenance is often based on table-driven form, which has a large overhead; or is based on automatic selection of cluster heads. Hierarchical routing management avoids overlapping problems, but the selection of cluster heads and the process of clustering often require large energy consumption and are relatively more complicated. The need for cluster heads to balance energy needs to change constantly, which brings the burden of selecting cluster heads. extra cost

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Embodiment Construction

[0029] The present invention mainly integrates the gradient thought of directional diffusion in planar routing algorithm and the thought of layered management in hierarchical routing. cluster head node for network communication. Within each cluster, the wireless transmission power of the sensor nodes is used to construct the shortest path similar to the gradient in directed diffusion, that is, when a sub-layer node receives information from multiple parent-layer nodes at the same time, it judges which one is by comparing its signal reception strength. The node is closer to it, thus determining its parent node address.

[0030] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0031] like figure 1 Shown is a schematic structural diagram of the hierarchical network system in the present invention. Including: cluster head node I, node A, node B, node C, node D and node E...

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Abstract

The invention discloses an Internet of things endpoint data acquisition routing method, which specifically comprises the following steps of: broadcasting a network establishment frame, and starting establishing a route after a node receives the network establishment frame; setting the initial level of a cluster head node to be 1, and setting the initial levels of the other nodes to be 0; endowing a level number level, a source address src and a destination address dst carried by the node to a corresponding register in the node; and judging own level of the node, and when own level of the node is judged to be 0, transmitting a reply frame to a father node, performing operation processing and forwarding a route establishment frame by using the node, and receiving the route reply frame from a child node by using the father node. By the method, the problems of information overlapping and additional overhead in wireless sensor network construction and route maintenance processes are solved, thereby maximally reducing route maintenance data traffic and energy consumption to further prolong the life cycle of an endpoint node.

Description

technical field [0001] The invention belongs to the technical field of electrical communication, and in particular relates to a method for collecting and routing data at an Internet of Things terminal. Background technique [0002] The wireless sensor network has a large scale and random distribution, and the computing, storage and communication capabilities of the nodes are limited. In addition, the sensor network is powered by batteries, and its carrying energy is also limited. Therefore, the sensor node communication routing protocol should mainly focus on reducing routing maintenance consumption and prolonging the network life cycle. design. [0003] Flooding protocol is a traditional wireless communication routing protocol. Each node receives information from other nodes and sends it to other neighbor nodes in the form of broadcast. This protocol is prone to information implosion and overlap, resulting in waste of resources. [0004] Gossiping protocol is improved on ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04W24/04H04W40/02
CPCY02D30/70
Inventor 马礼张永梅王凯峰杜春来李争平马东超
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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