Fault-tolerance method in wireless sensor network

A wireless sensor and sensor node technology, applied in the field of sensor networks, can solve problems such as unforeseen fault-tolerant processing technology and unclear optimal methods, and achieve the effects of reducing communication traffic, improving fault tolerance, and improving success rate

Inactive Publication Date: 2009-06-03
宁波博勤企业咨询服务有限公司
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. Wireless sensor networks are still an emerging field of research and engineering, and the best way to deal with specific problems is still unclear
Since the technology and expected application of wireless sensor networks are still developing rapidly, it is difficult to predict the specific fault-tolerant processing technology in wireless sensor networks

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
  • Fault-tolerance method in wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] A fault-tolerant method in a wireless sensor network, comprising the following steps:

[0019] 1) After the sensor nodes in the wireless sensor network are deployed, define the sensor node used for sensing data in the wireless sensor network as the source node, and use the existing multi-path routing algorithm to establish a 2N network between the source node and the base station node node-disjoint transmission paths. In this embodiment, the node-disjoint transmission paths refer to sensor nodes that do not intersect any two transmission paths from the source node to the base station node. N is an integer greater than 0.

[0020] 2) At the source node, divide the original data sensed by the source node into K information codes, and then use (N′, K) RS erasure codes to perform RS erasure coding on the K information codes to obtain N′ s...

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 discloses a fault-tolerance method in a wireless sensor network. The fault-tolerance method has the advantages that a source node transmits original data through a plurality of transmission paths with mutually disjoint nodes, so that, in case of transmission failure of a certain middle sensor node or the single transmission path, the impact on the successful transmission of the original data is very small, thereby ensuring the accurate transmission of the original data; the source node carries out the erasure correction encoding of information codes at a source node end, then as long as the lost information is in the error-correcting range of erasure codes, a base station node end can recover the original data, thereby being more conductive to the data transmission. The method dynamically changes the number of the transmission paths needed by transmission by utilizing the index weighted averaging method according to the link state of the wireless sensor network environment, thereby improving the fault-tolerance ability of a system while improving the success rate of code element transmission, reducing the total communication traffic during the transmission and further achieving the maximum transmission success rate by utilizing the minimum transmission paths.

Description

technical field [0001] The invention relates to a sensor network technology, in particular to a fault tolerance method in a wireless sensor network. Background technique [0002] The research on Wireless Sensor Networks (WSN, Wireless Sensor Networks) originated in the 1970s and was first applied in the military field. In 1980, the Distributed Sensor Networks project (DSN, Distributed Sensor Networks) of the US Defense Advanced Research Agency (DARPA, Defense Advanced Research Projects Agency) opened a precedent for modern sensor network research. Subsequently, with the rapid development of various technologies such as sensors, embedded computing systems, distributed information processing and wireless communication networks, wireless sensor networks have become a new information acquisition and processing technology. A wireless sensor network is a task-oriented wireless network composed of a group of multiple sensor nodes distributed in a set position in the form of a wire...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W40/02H04W84/18
Inventor 徐勇军陈彦明朱红松夏鹏
Owner 宁波博勤企业咨询服务有限公司
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