公开(公告)号：US20240118685A1

公开(公告)日：2024-04-11

申请号：US18265730

申请日：2021-11-17

Applicant: Stefan Hagen Weber ,  Johannes Kehrer ,  Johanna Bronner ,  Cecilia Margareta Bruhn ,  Michael Schnurbusch

Inventor： Stefan Hagen Weber ,  Johannes Kehrer ,  Johanna Bronner ,  Cecilia Margareta Bruhn ,  Michael Schnurbusch

IPC: G05B23/02

CPC classification number: G05B23/0229 ,  G05B23/0221

Abstract: Assistance apparatus for automatically identifying failure types of a technical system is provided including at least one processor configured to determine for each sensor data a set of specific temporal courses of first time series of the sensor data of the sensor and assign a symbolic representation to each of the different specific temporal courses, provide at least one failure pattern, obtain more than one monitored time series of sensor data of the technical system, each of them divided into a sequence of time segments, and automatically assign to each time segment a symbolic representations according to the temporal course of the sensor data in the time segment, calculate a similarity measure for the set of symbolic representations of a selected time interval, determine a ranking of the failure pattern depending on decreasing values of the calculated similarity measure, and output the ranking.