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A sensor network node deployment method and node

A sensor network and sensor head technology, applied in network topology, network planning, electrical components, etc., can solve the problems of inability to guarantee sensor network connectivity, reduced coverage, area overlap, etc., to achieve good network coverage and reduce energy consumption. , the effect of ensuring connectivity

Inactive Publication Date: 2011-11-30
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are similar to the diffusion strategy. When the sensing radius of the node is small, the Thiessen polygon perceived by the node is irregular, which will cause overlapping areas and reduced coverage; it cannot guarantee the connectivity of the final sensor network.

Method used

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  • A sensor network node deployment method and node
  • A sensor network node deployment method and node
  • A sensor network node deployment method and node

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Embodiment Construction

[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0069] In the node deployment scheme of the sensor network provided in the embodiment of the present invention, the system is assumed as follows. Assume that all sensor nodes have a Global Positioning System (GPS) and can detect their physical positions at any time; all nodes have the same communication radius rc and the same perception radius rs (of course, the communication radius and perception radius can be different) . The communication model is...

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Abstract

The embodiment of the invention discloses a node deployment method and a node of a sensor network. The method comprises the following steps of: deploying sensor head nodes at fixed positions of a perception area, wherein all sensor node information in the perception area is prestored in the sensor head nodes; moving other nodes which are randomly deployed to the head nodes according to a fence line until other nodes are directly or indirectly communicated with the head nodes; determining movable nodes and uncovered areas according to information which is exchanged by communicating the nodes; and diffusing the movable nodes to the uncovered areas so as to ensure coverage rate. By the method and the node, the coverage rate of the nodes in the movable sensor network can be improved, the moving distance of the nodes can be reduced and the network connectivity can be ensured when the nodes of the mobile sensor network are deployed.

Description

technical field [0001] The invention relates to the field of wireless sensor networks, in particular to a node deployment method and nodes of the sensor network. Background technique [0002] Wireless sensor networks include a large number of cheap micro sensor nodes deployed in the monitoring area, and these sensor nodes form a multi-hop self-organizing network through wireless communication. The deployment of wireless sensor networks (or wireless sensor networks) is a major problem in sensor network technology. [0003] The effectiveness of a sensor network depends on its coverage, that is, the percentage of the area that the sensors are effectively monitoring compared to the area of ​​interest. It is difficult to achieve the required network coverage by randomly deploying nodes. An effective way to solve this problem is to use mobile sensors (that is, nodes in the sensor network) to form a network, deploy the sensors randomly to the target area, and then move the sensor...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W84/18
Inventor 张伟杨凡丰大洋
Owner HUAWEI TECH CO LTD
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