in this paper, first the available single charting methods, which have been proposed to detect simultaneous shifts in a single process mean and variance, are reviewed. then, by designing proper simulation studies these methods are evaluated in terms of in-control and out-ofcontrol average run length criteria (arl). the results of these simulation experiments show that the ewma and ewms methods ...

The centralised control rooms of large industrial plants have separated people from the processes they should control. Perception is restricted mainly to the visual sense. Only telephone or radio links provide narrow-band voice communication with maintenance personnel down in the plant. Multimedia equipment can perceptionally bring back the operator into the plant while bodily keeping him the c...

Computer control of industrial processes began in 1959, when a computer was first used to control a polymerization unit in a Texaco refinery. There has been a dynamic development fueled by drastic advances in process understanding, control theory, sensors and computer technology. The following quote from a study by the US National Research Council 1 indicates the economic importance of computer...

CONTENTS SUMMARY 1. WHAT IS ADVANCED CONTROL? 2. PROCESS MODELS 2.1. Mechanistic Models 2.2. Black Box Models 2.3. Qualitative Models 2.4. Statistical Models 3. MODEL BASED (MODERN) AUTOMATIC CONTROL 3.1. PID Control 3.2. Predictive Constrained Control 3.3. Multivariable Control 3.4. Robust Control and the Internal Model Principle 3.5. Globally Linearising Control 4. STATISTICAL PROCESS CONTR...