Process control in a high-noise environment using a limited number of measurements

Author

Barajas, Leandro G. ; Egerstedt, Magnus B. ; Kamen, Edward W. ; Goldstein, Alex

Author_Institution

Sch. of Electr. & Comput Eng., Georgia Inst. of Technol., Atlanta, GA, USA

Volume

1

fYear

2003

fDate

4-6 June 2003

Firstpage

597

Abstract

In this paper, we develop a hybrid control algorithm that produces control values for processes where only a limited number of function evaluations are available for the control law generation. This situation arises, for example, in stencil printing processes in printed circuit board manufacturing, where the cost associated with multiple function evaluations is prohibitive: The proposed control algorithm is given by a modified version of a constrained conjugated-gradient method, transitioned into a windowed-smoothed block-form of the least-squares affine estimator.

Keywords

algorithm theory; conjugate gradient methods; function evaluation; least squares approximations; printed circuit manufacture; printing industry; process control; constrained conjugated gradient method; control law generation; control values; high noise environment; hybrid control algorithm; least square affine estimator; multiple function evaluations; printed circuit board manufacturing; process control; stencil printing processes; windowed smoothed block form; Cost function; Electric variables measurement; Hybrid power systems; Industrial control; Manufacturing processes; Printed circuits; Printing; Process control; Production; Robust control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2003. Proceedings of the 2003

ISSN

0743-1619

Print_ISBN

0-7803-7896-2

Type

conf

DOI

10.1109/ACC.2003.1239084

Filename

1239084