Method and system for detecting a cyber-attack on a machine controller

US12348543B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Rishith Ellath Meethal · Peising, DE
• Christoph Ludwig · Radeberg, DE
• Mohamed Khalil · Munich, DE
• Christoph Heinrich · Donauwörth, DE
• Steffen Fries · Baldham, DE
• Uwe Blöcher · Puchheim, DE
• Dirk Hartmann · Aßling, DE

Key dates

• Filing date: Sep 10, 2021
• Grant date: Jul 1, 2025
• Expiry date: Jun 26, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S40/18
• WIPO field: Control
• WIPO sector: Instruments

Abstract

For detecting a cyber-attack on a machine controller, a concurrent simulation of the machine is run in a secured access domain. From the machine controller actual control data are transmitted to the machine and resulting monitoring data are transmitted to a monitoring device. Furthermore, sensor data of the machine are transmitted to the concurrent simulation on a first secured transmission path. Based on the sensor data, the concurrent simulation simulates an operational behavior of the machine, thus inferring simulated monitoring data. The simulated monitoring data are then compared with the resulting monitoring, and an alarm signal is triggered depending on the comparison.