Patent Document ID: 20030141404
Application ID: 10257508
Patent Flag: 0

Claim One:
1. Method for improving the operating reliability in reeling up of a paper web, in which a continuous paper web (W) which is coming from a paper machine and/or finishing treatment of paper and whose width corresponds to the width of production or which is slit into part webs, is reeled around a reeling core/reeling cores (C 1, C 2 ) into successive machine reels or customer rolls, characterized in that in addition to the actual control system (CS) that controls the reeling up, a substantially separate model-based learning fault diagnostics (FD) is used, which fault diagnostics (FD), when operating in a learning state ( FIG. 1 ), learns in the normal operating modes of the reel-up, including the change sequences of the full reel/reels and the empty reeling core/O cores, the normal dependencies between the measuring, control and actuating variables (1 to 7) of the reel-up by monitoring the same, when operating in a diagnostic state ( FIG. 2 ), detects the malfunctions of components which are critical in view of the operation of the reel-up by monitoring the measuring, control and actuating variables and comparing them with the model formed in the learning state, and after detecting a fault, shifts into a fault tolerance state ( FIG. 3 ), if necessary, in which, if a fault occurs in a component/some components of the reel-up, the fault diagnostics actively affects the measuring, control and actuating variables to maintain the function of the reel-up, compensating on the basis of the model it has learned the malfunction caused by the fault/faults in the actual control system as well as in the function of the reel-up.