Conventional PCA method is susceptible to intractable difficulties to monitor a process experiencing mode transitions.In this context

this paper presents a modified recursive PCA approach which combines on-line process singular value recognition algorithms and contributes to mode transition process monitoring.Specifically

an enabling algorithm of process singular value recognition is proposed

which accounts for accurately identifying ongoing mode transition of a process before launching recursive PCA algorithms to monitor the transition phases.TE process is employed as a case study

which demonstrates the benefits of the contribution.