A review of methods for input/output selection

Abstract

Control system design involves input/output (IO) selection, that is, decisions on the number, the place, and the type of actuators and sensors. The choice of inputs and outputs a!ects the performance, complexity, and costs of the control system. Due to the combinatorial nature of the selection problem, systematic methods are needed to complement one's intuition, experience, and physical insight. This paper reviews the currently known IO selection methods, which aids the control engineer in picking a suitable method for the problem at hand. The methods are grouped according to the control system property that is addressed and applications are grouped according to the considered control systems. A set of criteria is proposed that a good IO selection method should possess. It is used to assess and compare the methods and it could be used as a guideline for new methods. The state of the art in IO selection is sketched and directions for further research are mentioned.

Optimal usage of coal, gas and oil in a power plant

“…More general purpose methods for selecting and placing sensors and actuators have been evaluated in [4,5], which include for example methods relying on controllability measures such as state reachability and more sophisticated methods using robust performance measures. It is also concluded in [4] that the choice of sensors and actuators dictates the expenses for hardware, implementation, operation and maintenance.…”

“…It is also concluded in [4] that the choice of sensors and actuators dictates the expenses for hardware, implementation, operation and maintenance.…”

Selecting actuator configuration for a benson boiler: Production economics

“…More general purpose methods for selecting and placing sensors and actuators have been evaluated in [3] and [4], which include e.g. methods relying on controllability measures such as state reachability and more sophisticated methods using robust performance measures.…”

“…methods relying on controllability measures such as state reachability and more sophisticated methods using robust performance measures. It is also concluded in [3] that the choice of sensors and actuators dictates the expenses for hardware, implementation, operation, and maintenance.…”

Configuring A Sensor Network for Fault Detection in Distributed Parameter Systems

“…Over the past years, laborious research on the development of strategies for efficient sensor placement has been conducted (for reviews, see the papers (Kubrusly and Malebranche, 1985;Uciński, 1992;Uciński, 2000;van de Wal and de Jager, 2001) and the comprehensive monographs Uciński, 1999)). Nevertheless, although the need for systematic methods was widely recognized, most techniques communicated by various authors usually rely on an exhaustive search over a predefined set of candidates and the combinatorial nature of the design problem is taken into account very occasionally (van de Wal and de Jager, 2001).…”