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Central wireless sensor network topology reconstruction method

A wireless sensor and network topology technology, applied in network topology, wireless communication, network planning, etc., can solve problems such as network monitoring performance degradation, achieve intelligent and self-organizing capabilities, rapid replacement and repair, and ensure monitoring performance Effect

Active Publication Date: 2013-09-04
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the problem of failure of some nodes in the wireless sensor network and degradation of network monitoring performance, the present invention provides a centralized wireless sensor network topology reconfiguration method

Method used

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  • Central wireless sensor network topology reconstruction method
  • Central wireless sensor network topology reconstruction method
  • Central wireless sensor network topology reconstruction method

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Embodiment Construction

[0050] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0051] 1. Network structure and network coverage

[0052] 1.1 Network topology

[0053] The network topology considered in the present invention is as figure 1 As shown, among them, the fixed nodes are represented by "●", and the nodes are regularly deployed in the monitored area and always remain active; the mobile nodes are represented by "○", and are randomly deployed in the monitored area. In the present invention, the mobile node is referred to as a reconfiguration support node, hereinafter...

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Abstract

The invention discloses a central wireless sensor network topology reconstruction method. The central wireless sensor network topology reconstruction method particularly comprises the following steps: firstly, discussing mutual relation between network coverage and number of failure nodes aiming at a given regular network structure, and providing a basis for determining that the number of required failure nodes with the minimum repair can achieve certain network coverage; then, performing mathematical description on the scheduling problem of support nodes, converting the marriage problem between the support nodes and the failure nodes into an integer programming problem for solving, and obtaining an optimized node distribution method, namely a network topology reconstruction method; meanwhile, discussing the node distribution method of a random network structure; and finally, performing verification and analysis on the proposed method through a simulation experiment. Under the precondition that the maximum moving distance of a single support node is limited, an optimized matching scheme between a node needing to be moved and a failure node to be repaired is searched, so that the total moving distance of all support nodes needing to be moved is minimum.

Description

technical field [0001] The invention relates to a central wireless sensor network topology reconfiguration method, which can realize the optimal allocation of support nodes in the wireless sensor network, quickly replace and repair the failed nodes in the network, ensure the monitoring performance of the network, and reflect the intelligence of the network and self-organization capabilities. Background technique [0002] Compared with the traditional network, the wireless sensor network has the characteristics of flexible networking, comprehensive monitoring information, and high degree of intelligence. It is a new information collection and processing technology, which greatly expands the ability of human beings to obtain information. Based on the many advantages of wireless sensor networks, it has broad application prospects and great application value in many fields such as industrial and agricultural production, national defense and military, transportation and logistics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W84/18
Inventor 傅质馨袁越
Owner HOHAI UNIV
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