Method for detecting wireless sensor network node malfunction

A wireless sensor and network node technology, which is applied in radio/inductive link selection and arrangement, wireless communication, transmission monitoring, etc., can solve the problems of node failure detection accuracy reduction, network collapse, troubles, etc.

Inactive Publication Date: 2008-09-03
HANGZHOU DIANZI UNIV
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (3) It is very troublesome and unrealistic to manually detect whether each node is normal;
[0008] (4) Faulty solar terms will generate wrong data, so that the monitoring center cannot obtain correct monitoring information, and in severe cases, the entire network will collapse;
Among them, the DFD wireless sensor network node fault detection method has the following disadvantages: when the number of neighbor nodes of the node to be detected is small or the probability of node failure in the networ

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting wireless sensor network node malfunction
  • Method for detecting wireless sensor network node malfunction
  • Method for detecting wireless sensor network node malfunction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] Such as figure 1 As shown, according to the following process to judge a node S i Is it normal or malfunctioning:

[0033] 1) Judgment node S i and its neighbor node Neighbor(S i ) preliminary detection status;

[0034] 2) If Neighbor(S i ) in the number of nodes whose preliminary detection status is probably normal (LG) is 0, and the node S i The preliminary detection status of the node S is probably normal (LG), then the node S i The state is judged as normal (GD), otherwise it is fault (FT);

[0035] 3) If the preliminary detection status of the neighbor nodes is probably normal (LG), the node S i The number of nodes whose test result is 1 is less than that of node S i The number of nodes whose test result is 0, then the node S iThe state is judged as normal (GD), otherwise it is faulty (FT).

[0036] Repeat the above steps until the stat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an improved DFD wireless sensor network code failure detecting method. The current detecting method has a low detecting precision. On the basis of obtaining the detecting result and initial detecting state of the neighbor nodes, the inventive method judges the node state normal if detected nodes, whose detecting result is zero, is more than the nodes whose detecting result is one in the nodes whose initial detecting result is possibly normal in the neighbor nodes to any node; contrarily, it is failed. The method detects the failure code by the data exchange and inter-detection between the neighbor nodes. The technology scheme is suitable for the sensor network with a few network nodes and the neighbor codes to be detected, and high failure rate, which largely improves failure detecting precision.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to an improved wireless sensor network node failure detection method, which detects the failure node through data exchange and mutual testing among neighbor nodes in the network. Background technique [0002] The wireless sensor network is a multi-hop self-organizing network system composed of a large number of low-cost miniature sensor nodes deployed in the monitoring area through wireless communication. It has the characteristics of multi-function and low energy consumption. Its purpose is to sense, collect and process Information about objects in the area covered by the network and sent to observers for processing and analysis. As one of the key technologies of wireless sensor networks, node fault detection is an indispensable link in most application fields of wireless sensor networks. [0003] Wireless sensor network integrates sensor, embedded computing, modern n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B17/00H04Q7/34H04W24/04
Inventor 蒋鹏何志业
Owner HANGZHOU DIANZI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap