Method for repairing fault of wireless sensor network

A wireless sensor and fault repair technology, applied in the direction of network topology, wireless communication, data exchange network, etc., can solve the problems of high energy consumption and inappropriate wireless sensor network.

Active Publication Date: 2011-06-29
BEIJING ZHIGU TECH SERVICE
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  • Abstract
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However, the proposed mobile method needs to move all the links between the faulty node and the replacem...

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  • Method for repairing fault of wireless sensor network
  • Method for repairing fault of wireless sensor network
  • Method for repairing fault of wireless sensor network

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Embodiment Construction

[0071] The fault repairing method for the wireless sensor network proposed by the present invention will be described in detail in conjunction with the accompanying drawings and embodiments.

[0072] The cluster-based fault repair method for the distributed wireless sensor network provided by the present invention can automatically adjust the network when a node fails or fails, and realizes fault repair through cooperation among nodes and self-organizing reconstruction of the network, and the Failure losses are reduced to a minimum. Such as figure 1 As shown, a cluster-based distributed wireless sensor network fault repair method according to an embodiment of the present invention includes steps:

[0073] A1. Construct a wireless sensor network cluster structure and select a cluster head node;

[0074] A2. The cluster head node collects the information in the cluster, and detects whether the current cluster meets the coverage requirement or whether the coverage is lower than...

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Abstract

The invention discloses a method for repairing a fault of a wireless sensor network. The method comprises the following steps: S1, based on a fuzzy mathematics and linear program method, establishing a membership matrix which represents the membership degree of a redundant node on a fault node a replacement matrix which represents the redundant node on the fault node and restriction conditions; S2, according to the membership matrix and the replacement matrix, constructing a target function of the redundant node to replace the fault node; and S3, based on a genetic algorithm, selecting an optimal redundant node to replace the fault node. By utilizing the method provided by the invention, the defect that at present, the energy problem is not abundantly considered in the aspect of study on the fault repairing problem is solved, wherein the problem can be more appropriately described by using the used fussy theory, and various influence factors are considered in the calculation of the membership function, thus network conditions are comprehensively reflected; and by using a genetic simplex method, the defect that the genetic algorithm is early matured is solved, a searching space is developed, and the convergence in the later period of searching is good.

Description

technical field [0001] The present invention relates to the technical field of wireless sensor networks (Wireless Sensor Networks, WSN), and in particular to a fault recovery method for cluster-based distributed wireless sensor networks. Background technique [0002] With the development of wireless communication technology and microelectronic systems, wireless sensors have emerged as a solution for remote monitoring applications. But wireless sensors are inherently prone to failure. First of all, the sensor node itself is low in cost and low in cost, so it usually only carries limited resources, such as energy, etc., and is prone to failures due to resource exhaustion; node failure; again, wireless sensor nodes are mostly deployed in large-scale areas without human intervention, and cannot be repaired by manual replacement. Node failure may cause interruption of communication links, coverage holes, network separation, etc., resulting in reduced application quality or even...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04W84/18H04L12/24
Inventor 邱雪松陈兴渝关志丽熊翱高志鹏黄日茂詹志强
Owner BEIJING ZHIGU TECH SERVICE
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