PID control using wireless measurements

This paper presents a wireless PID controller, known as PIDPlus. The same quality control as wired PID can be provided by PIDPlus using a wireless measurement, despite slower wireless measurement update and communication interruptions. The PIDPlus novel algorithm is based on a modification of the PI...

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Bibliographic Details
Published in2014 American Control Conference pp. 790 - 795
Main Authors Blevins, Terry, Nixon, Mark, Wojsznis, Willy
Format Conference Proceeding
LanguageEnglish
Published American Automatic Control Council 01.06.2014
Subjects
Kalman filters
Noise
Noise measurement
Observers
Observers for linear systems
PID control
Process control
Transmitters
Wireless
Wireless communication
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Summary:This paper presents a wireless PID controller, known as PIDPlus. The same quality control as wired PID can be provided by PIDPlus using a wireless measurement, despite slower wireless measurement update and communication interruptions. The PIDPlus novel algorithm is based on a modification of the PID reset and rate calculation to account for non-periodic measurement updates. The paper presents and evaluates an alternate approach of PID control accounting for non-periodic measurements with a Kalman filter observer that has been modified for use with a wireless measurement. A second alternative shows how the Smith Predictor may be modified to work with a wireless measurement. Test results are presented that compare the PIDPlus performance to that achieved using these alternate approaches for a variety of operating conditions that may be encountered when using wireless transmitters.
ISBN:1479932728
9781479932726
ISSN:0743-1619
2378-5861
DOI:10.1109/ACC.2014.6858597