Siemens Aktiengesellschaft

Siemens Industry Software Nv

Christoph Ernst Ludwig

Steffen Fries

Lucia Mirabella

Utz Wever

Dirk Hartmann

Uwe Blöcher

Mohamed Khalil

Elena Arvanitis

Christoph Heinrich

Jan Fischer

Roland Rosen

Nils Weinert

Nicolas Lammens

Christoph Wincheringer

Rishith Ellath Meethal

Hunor Erdelyi

Artur Jungiewicz

Lutz Hübner

Efrossini Tsouchnika

Heide Brandstaedter

Dehao Liu

In order to repair a workpiece, a requirement specification about a requirement to be met by the workpiece and a numerical simulation model for simulating a physical behavior of the workpiece are imported. Furthermore, a current shape of the workpiece is detected by means of a sensor. Where a deviation of the current shape from a target shape S of the workpiece is identified, a respective physical behavior of the workpiece in its current shape and in a shape added to by means of a 3D printer are simulated using the simulation model. Furthermore, a check is performed on the basis of the requirement specification to ascertain whether the simulated physical behavior meets the requirement. Depending on the outcome of the check, the workpiece is then either left in its current shape, added to by the 3D printer or discarded.

Method for repairing workpiece involves using requirement information to check whether simulated physical behavior fulfills requirement

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.

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

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Munich, Germany

Christoph Ernst Ludwig