Diagnosis facility and diagnostic method for monitoring performance of a technical plant

US10481581B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Thomas Bierweiler · Karlsruhe, DE
• Daniel LABISCH · Karlsruhe, DE

Key dates

• Filing date: Apr 10, 2017
• Grant date: Nov 19, 2019
• Expiry date: Jan 20, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F30/3312
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A diagnosis facility and diagnostic method for monitoring the performance of a technical plant with an automation system. In the performance of a plant with step sequences that run repeatedly, deviations of the time response in a cycle of the step sequence that is to be checked from the time response for fault-free cycles are detected and displayed by evaluation of the data set, using the self-organizing map. To this end, the durations of the execution of each step in the step sequence that is to be checked are determined and evaluated using a predetermined self-organizing map that has been learned using fault-free cycles. This type of evaluation has the advantage that the self-organizing map can be learned automatically and consequently hardly any knowledge of the respective process that is running on the plant is required for the diagnosis.