Patent ID: 9429939
Filing Date: 2016-08-30
CPC Classification: G05B

Claim Text:
1. A computer-implemented method for monitoring a manufacturing process in a processing facility, the method comprising: receiving, via a computing device from the processing facility, measured values of a plurality of variables of the manufacturing process, the plurality of variables including at least one of manipulated variables or dependent variables, the plurality of variables representing physical parameters of the manufacturing process; determining, with the computing device, future values of the manipulated variables or future values of the dependent variables, or a combination thereof, wherein the manipulated variables represent process parameters whose values are directly assignable during the manufacturing process and the dependent variables represent process parameters whose values are dependent on one or more process conditions; creating, with the computing device, an unfolded data matrix using observation-wise unfolding of a batch data array, such that each row of the unfolded matrix includes observation of the plurality of variables at a unique time sample within a finite duration; performing multivariate analysis, via the computing device, on the unfolded data matrix comprising a combination of (1) the measured values of the variables and (2) at least one of the future values of the manipulated variables or the future values of the dependent variables to generate a plurality of multivariate statistics, the plurality of multivariate statistics represent a trajectory of measured past, current and estimated future behavior of the manufacturing process; and causing, by the computing device, adjustment to one or more of the physical parameters of the manufacturing process in the processing facility based on the plurality of multivariate statistics to prevent deviation of the trajectory from a desired trajectory.