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Data collection method for tree-shaped wireless sensor network based on mobile nodes

A wireless sensor network and data collection technology, applied in specific environment-based services, wireless communication, machine-to-machine/machine-type communication services, etc. , to achieve the effect of reducing energy consumption, avoiding energy holes, and reducing energy overhead

Active Publication Date: 2020-03-17
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In a word, the problem existing in the existing technology is: due to the limitation of the data collection method, the load balancing and energy balancing cannot be taken into account, resulting in shortened network lifetime

Method used

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  • Data collection method for tree-shaped wireless sensor network based on mobile nodes
  • Data collection method for tree-shaped wireless sensor network based on mobile nodes
  • Data collection method for tree-shaped wireless sensor network based on mobile nodes

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Embodiment Construction

[0022] like figure 1 Shown, the present invention is based on the tree form wireless sensor network data collection method of mobile node, comprises the following steps:

[0023] (10) Network initialization: the wireless sensor network is divided into virtual grids of equal size, and the initial position is broadcast by the mobile sink node;

[0024] In the (10) network initialization step, the initial position of the mobile sink node is at the edge of the node area, and the energy can be charged.

[0025] The network topology diagram is as follows figure 2 shown.

[0026] figure 2 In , the wireless sensor network includes sensors represented by dots, and the solid circles represent cluster head nodes. The sensing area of ​​the wireless sensor network is a circular area with a radius of R, and a mobile sink node is placed on the edge of the sensing area to move along the edge of the sensing area. Divide the sensing area into several square virtual grids, and elect the c...

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Abstract

The invention discloses a mobile node-based tree-shaped wireless sensor network data collection method, which includes the following steps: (10) Network initialization: divide the wireless sensor network into virtual grids of equal size, and broadcast the initial position by the mobile sink node ; (20) Cluster head election: each virtual grid is an election unit, and cluster head election is carried out in each election unit; (30) Node clustering: non-cluster head nodes choose the cluster head node closer to themselves as Next hop node; (40) intra-cluster data transmission: the nodes in the cluster send the collected sensing data to the cluster head node; (50) mobile node data collection: each cluster head node finds the cluster closer to itself The head acts as the next hop node, and sends the collected sensing information of all nodes in the cluster to the next hop node after data fusion, until it is transmitted to the mobile sink node.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, in particular to a mobile node-based tree-shaped wireless sensor network data collection method with both load balance and energy balance and long network life. Background technique [0002] A wireless sensor network is a multi-hop self-organizing network formed by connecting a large number of low-cost and low-power sensor nodes deployed in the monitoring area through wireless communication. These sensor nodes are responsible for collecting a large amount of data from the surrounding environment, providing wireless networks from simple scalar data (such as temperature, humidity, etc.) to complex data with rich information (such as images, audio, video, etc.). Wireless sensor networks have broad application prospects in military, environmental monitoring, medical care, agriculture, traffic control and other fields. Therefore, as an important sensing technology, wireless sensor ne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/38H04W40/10H04W40/20
CPCH04W4/70H04W40/10H04W40/20Y02D30/70
Inventor 王进季欢居春伟孙静
Owner YANGZHOU UNIV
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