公开(公告)号：US20230088241A1

公开(公告)日：2023-03-23

申请号：US17932773

申请日：2022-09-16

申请人： Festo SE & Co. KG

发明人： Thilo Streichert ,  Silvia Starz ,  Steffen Schmid

IPC分类号： F15B19/00 ,  G06N7/00 ,  G06N20/00 ,  G05B23/02

摘要： Continuous condition monitoring of a pneumatic system, and in particular for early fault detection, is provided. The condition monitoring unit is formed with an interface to a memory in which a trained normal condition model is stored as a one-class model, which has been trained in a training phase with normal condition data and represents a normal condition of the pneumatic system. Furthermore, the condition monitoring unit comprises a data interface for continuously acquiring sensor data of the pneumatic system by means of a set of sensors, an extractor for extracting features from the acquired sensor data, a differentiator for determining deviations of the extracted features from learned features of the normal state model by means of a distance metric, a scoring unit for calculating an anomaly score from the determined deviations, and an output unit for outputting the calculated anomaly score.