Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for improving wireless sensor network time synchronization precision

A wireless sensor, network time technology, applied in the direction of synchronization device, transmission system, digital transmission system, etc., can solve the problems of synchronization error increase, TPSNRBS synchronization effect is good, and achieve the effect of improving accuracy, curbing free growth, and high synchronization accuracy

Active Publication Date: 2007-05-30
INST OF COMPUTING TECH CHINESE ACAD OF SCI
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is a major problem with TPSN: Since TPSN is an instantaneous synchronization algorithm, although its instantaneous synchronization error is very small, the synchronization error grows freely between two adjacent synchronization operations
Therefore, from the perspective of the average synchronization error, TPSN is not as good as the synchronization effect of RBS.

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
  • A method for improving wireless sensor network time synchronization precision
  • A method for improving wireless sensor network time synchronization precision
  • A method for improving wireless sensor network time synchronization precision

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0047] The core idea of ​​the present invention is: based on the time information attached to the TPSN protocol, by dynamically estimating the relative frequency deviation between the sensor nodes, and using the estimated relative frequency deviation to compensate the node time, thereby preventing the synchronization between two synchronous operations The free growth of synchronization errors in the time period between them can effectively improve the accuracy of time synchronization in wireless sensor networks.

[0048] The realization principle of the present invention is firstly introduced below. The method for improving the time synchronization accuracy of the wireless sensor network provided by the present invention ...

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

This invention relates to wireless sensor network technique and discloses one method to improve wireless sensor network time simultaneous accuracy, which comprises the following steps: a, online dynamic estimating wireless sensor network joints relative frequency bias; b, in need of point time, using estimated frequency bias to compensate point time. This invention can process compensation by use of estimation relative frequency bias.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a method for improving time synchronization accuracy of wireless sensor networks. Background technique [0002] A wireless sensor network is a task-oriented network composed of distributed sensor nodes. It integrates sensor technology, embedded computing technology, modern network and wireless communication technology, distributed information processing technology and other technologies in various fields, monitors target information in real time through various micro sensors, and processes information by embedded computing resources , and transmit the information to the remote user through the wireless communication network. [0003] Sensor network technology has very broad application prospects. It has important scientific research value and practical value in many fields such as military defense, industrial and agricultural control, urban management, biomedic...

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): H04L7/00
Inventor 徐朝农朱红松谢磊徐勇军李晓维
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com