Abstract: A control unit has at least one control element, in particular with at least one integrating and/or differentiating transfer characteristic which is constructed as a temporally discrete dynamic fuzzy logic control element. A temporally discrete dynamic fuzzy logic control element of this kind is for example a so-called fuzzy logic automaton, which has processing states. It is advantageous that the control unit of the invention can be constructed with control elements that each have systematically dynamic fuzzy logic properties, and in which nonlinearities can be introduced in a targeted way for a desired control performance.

Abstract: A device and method for the early detection of a rupture in a continuous casting plant, in which liquid metal is cast into a chill (2) and is withdrawn from the chill (2) in the form of a billet (1), the temperature of the chill (2) being measured, and the temperature of the chill (2) being simultaneously presented with reference to the location at which the temperature was measured and the time over which the temperature was measured.

Abstract: Intelligent computerized control system for facilities in which goal-oriented technical or biological processes take place, the control system being designed to build on previously input knowledge to determine automatically, from the results of the processes taking place in such facilities, the process status and to give appropriate computer-generated instructions for achieving the objective of the process in a manner appropriate for the situation.

Abstract: A process and system for casting a billet of liquid metal. The liquid metal is cast into a casting die and drawn from the casting die as a billet having a solidified investment and a liquid core. The liquid metal level in the casting die is regulated to a predetermined reference value. Disturbance variables, which act on the liquid metal level in the casting die and which cause a deviation between the actual value and the reference value of the liquid metal level, are estimated, and the influence of the disturbance variables on the actual value of the liquid metal level is compensated or reduced using the estimated disturbance variables.

Abstract: For early detection of break-outs during continuous casting, the surface temperature of the strand is detected by using temperature sensors arranged in a manner distributed around the strand in the mold and is then evaluated. In order to be able to achieve as accurate a prediction as possible for break-outs with only a low computational outlay, each temperature sensor (10) is assigned a pattern recognition device (11) which, from the temperature detected and an internal state variable representing the temperature curve up to that point, updates the internal state variable on the basis of fuzzy conclusions and generates at the output a current predicted value (P.sub.a) for the break-out probability.

Abstract: A predetermined number of actuators are arranged transversally to a continuously produced material web for adjusting the cross-sectional profile of the web. To determine to what degree the instantaneous cross-sectional profile can approximate a reference profile, an optimally achievable profile is determined first in a computing device on the basis of a measured profile and a mathematical model of a controlled system of a cross-sectional profile control, and the optimally achievable profile is compared with the measured profile.

Abstract: A number of identified actuators are adjusted by identical absolute values which have an effect on a web end only within a noise level. A series of transverse profile measurements are then carried out, from which in each case a previously determined mean value of the transverse profile is subtracted and the results are superimposed until a number of measuring signals, which corresponds to the actuators to be identified, stands out in a clearly recognizable fashion in terms of amplitude and/or shape from the superimposed noise components of the transverse profile.