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Title: Synchronization system and method for wireless communicating nodes

Abstract

A system includes first and second wireless nodes having a clock with plural times, a wireless transceiver, and a processor cooperating with the transceiver to transmit and receive packets. The second node transceivers wirelessly communicate with the first or other second node transceivers. The second nodes include a Kalman filter with an output, plural filter gains, and an input representing the difference between: about the time of the clock when a received packet should have ideally been received, and a time when the received packet was actually received as measured by the clock. A circuit provides dynamic adjustment of the filter gains. The Kalman filter output estimates the difference between the time of the receiving node clock and a corresponding one of the times of the transmitting node clock. The second processor cooperates with the Kalman filter output to adjust the times of the receiving node clock.

Inventors:
; ;
Issue Date:
Research Org.:
Eaton Corp., Cleveland, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531834
Patent Number(s):
7912164
Application Number:
11/613,406
Assignee:
Eaton Corporation (Cleveland, OH)
Patent Classifications (CPCs):
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04W - WIRELESS COMMUNICATION NETWORKS
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04J - MULTIPLEX COMMUNICATION
DOE Contract Number:  
FC26-04NT42071
Resource Type:
Patent
Resource Relation:
Patent File Date: 2006-12-20
Country of Publication:
United States
Language:
English

Citation Formats

Armstrong, Brian S. R., Pereira, Luis R., and Rentel, Carlos H. Synchronization system and method for wireless communicating nodes. United States: N. p., 2011. Web.
Armstrong, Brian S. R., Pereira, Luis R., & Rentel, Carlos H. Synchronization system and method for wireless communicating nodes. United States.
Armstrong, Brian S. R., Pereira, Luis R., and Rentel, Carlos H. Tue . "Synchronization system and method for wireless communicating nodes". United States. https://www.osti.gov/servlets/purl/1531834.
@article{osti_1531834,
title = {Synchronization system and method for wireless communicating nodes},
author = {Armstrong, Brian S. R. and Pereira, Luis R. and Rentel, Carlos H.},
abstractNote = {A system includes first and second wireless nodes having a clock with plural times, a wireless transceiver, and a processor cooperating with the transceiver to transmit and receive packets. The second node transceivers wirelessly communicate with the first or other second node transceivers. The second nodes include a Kalman filter with an output, plural filter gains, and an input representing the difference between: about the time of the clock when a received packet should have ideally been received, and a time when the received packet was actually received as measured by the clock. A circuit provides dynamic adjustment of the filter gains. The Kalman filter output estimates the difference between the time of the receiving node clock and a corresponding one of the times of the transmitting node clock. The second processor cooperates with the Kalman filter output to adjust the times of the receiving node clock.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {3}
}

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