Tree-form wireless sensing net data collection method based on mobile node

A wireless sensor network and data collection technology, applied in wireless communication, wireless communication service, machine-to-machine/machine-type communication service, etc., can solve problems such as load balancing and energy balancing, network life shortening, etc., to achieve The effect of avoiding energy voids, reducing energy consumption, and reducing energy expenditure

Active Publication Date: 2017-06-27
YANGZHOU UNIV
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  • Abstract
  • Description
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  • 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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  • Tree-form wireless sensing net data collection method based on mobile node
  • Tree-form wireless sensing net data collection method based on mobile node
  • Tree-form wireless sensing net data collection method based on mobile node

Examples

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Embodiment Construction

[0022] Such as 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 th...

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Abstract

The invention discloses a tree-form wireless sensing net data collection method based on a mobile node. The method comprises the following steps of (10) network initialization: dividing a wireless sensing network into virtual grids of the same size, and broadcasting an initial position by a mobile sink node; (20) cluster head selection: taking each virtual grid as a competition unit, and performing cluster head selection in each competition unit; (30) node entering the cluster: a non-cluster-head node selecting a nearby cluster head node as a next hop node; (40) in-cluster data transmission: sending collected sensing data to the cluster head node by an in-cluster node; and (50) mobile node data collection: each cluster head node finding a close cluster head as a next hop node, subjecting sensing information of all nodes in the cluster to data fusion, and sending the fused sensing information to the next hop node until 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 Applications(China)
IPC IPC(8): H04W4/00H04W40/10H04W40/20
CPCH04W4/70H04W40/10H04W40/20Y02D30/70
Inventor 王进季欢居春伟孙静
Owner YANGZHOU UNIV
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