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Optimal Design of Sensor Parameters in PLC-Based Control System Using Mixed Integer Programming

Eiji KONAKA, Takashi MUTOU, Tatsuya SUZUKI, Shigeru OKUMA

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Summary :

Programmable Logic Controller (PLC) has been widely used in the industrial control. Inherently, the PLC-based system is a class of Hybrid Dynamical System (HDS) in which continuous state of the plant is controlled by the discrete logic-based controller. This paper firstly presents the formal algebraic model of the PLC-based control systems which enable the designer to formulate the various kinds of optimization problem. Secondly, the optimization problem of the 'sensor parameters,' such as the location of the limit switch in the material handling system, the threshold temperature of the thermostat in the temperature control system, is addressed. Finally, we formulate this problem as Mixed Logical Dynamical Systems (MLDS) form which enables us to optimize the sensor parameters by applying the Mixed Integer Programming.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.4 pp.818-824
Publication Date
2005/04/01
Publicized
Online ISSN
DOI
10.1093/ietfec/e88-a.4.818
Type of Manuscript
Special Section PAPER (Special Section on Selected Papers from the 17th Workshop on Circuits and Systems in Karuizawa)
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