Method for forwarding data of hierarchal wireless sensor network based on semantic routing

A wireless sensor network, hierarchical technology, applied in wireless communication, advanced technology, network topology, etc., to achieve the effect of improving stability and reducing energy consumption

Inactive Publication Date: 2013-01-16
SUZHOU LIANGJIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a method for forwarding data based on semantic routing in a hierarchical wireless sensor network, which solves many problems caused by common wireless sensor network routing data transmission in the prior art

Method used

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  • Method for forwarding data of hierarchal wireless sensor network based on semantic routing
  • Method for forwarding data of hierarchal wireless sensor network based on semantic routing
  • Method for forwarding data of hierarchal wireless sensor network based on semantic routing

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Embodiment

[0045] Such as figure 1 As shown, the specific implementation of the method for data forwarding based on semantic routing in the hierarchical wireless sensor network of this embodiment is as follows:

[0046] S1) In a data collection cycle, each cluster and each node collects data.

[0047] S2) The node simply processes the collected data, compares it with the threshold, and if it is greater than the threshold, it needs to upload the cluster head.

[0048] S3) If the node needs to upload data, it judges the semantic type, establishes a new frame, and writes the semantic elements contained in the node into the frame.

[0049] S4) Nodes use the generated semantic framework to construct data packets, and the constructed data packets will be directly forwarded to the cluster head.

[0050] S5) The cluster head extracts data for data fusion according to the data packets uploaded by ordinary nodes in the cluster within a data collection cycle, and determines whether an event occur...

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Abstract

The invention discloses a method for forwarding data of a hierarchal wireless sensor network based on semantic routing, wherein the hierarchal wireless sensor network is a semantic network. The method comprises the steps of (1) a cluster member node collecting data in the data collection period; (2) the member node processing the collected data, comparing the collected data with a preset threshold, uploading the collected data to a cluster head node if the collected data is larger than the threshold, otherwise, discarding the data and waiting for the next data collection period to collect data; (3) the member node determining the semantic type according to the collected data, constructing related semantic frame of the data, and directly forwarding the constructed data packet to the cluster head node; (4) the cluster head node extracting data according to the data packet uploaded by the cluster member node in one data collection period to fuse the data, determining whether an event occurs according to the data fusion result, and determining whether or not to upload and forward the data packet of the related event; and (5) the cluster head node determining the semantic type, constructing an event semantic frame, writing semantic elements contained in the occurred event of the cluster into the event semantic frame, and the cluster head node carrying out data packet construction according to the generated event semantic frame, and directly injecting the constructed data packet to the network through the routing table.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network routing, and in particular relates to a method for forwarding data based on semantic routing in a hierarchical wireless sensor network. Background technique [0002] In the wireless sensor network architecture, the routing technology of the network layer has an important influence on the performance of the wireless sensor network. After research by scholars at home and abroad, many routing protocols for wireless sensor networks have been proposed. From the perspective of network topology, these protocols can be roughly divided into two categories: flat routing protocols and clustering routing protocols. [0003] In the flat routing protocol, the status of all network nodes is equal, and there is no difference in rank and level. They generate routes through mutual local operations and information feedback. In this type of protocol, the destination node (sink) sends a query comman...

Claims

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Application Information

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IPC IPC(8): H04W40/04H04W52/02H04W84/18
CPCY02D30/70
Inventor 陈国庆薛超
Owner SUZHOU LIANGJIANG TECH
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