Industrial control system and method for operating the industrial control system
AssigneeSiemens Aktiengesellschaft
InventorsPeter Fischer, Robert Weikert
Life of this patent
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Abstract
A method for operating an industrial control system that has an automation controller with a sequential program, an actuator which actuates a switching component of the power electronics, and an input module, wherein activation and deactivation operations of the switching component cause electromagnetic interference that corrupts a measured value recorded via the input module, where a temporal occurrence of the activation and deactivation operations and/or an operating state is predicted for the switching component, and where the prediction is used to perform a correction of the measured value at a prediction time instant or during a prediction time range with respect to the corruption caused by the electromagnetic interference.
Claims8
A method for operating an industrial control system including an automation controller having a sequential program, an actuator configured to actuate a switching component of power electronics of the industrial control system, and an input module, activation and deactivation operations of the switching component causing electromagnetic interference which corrupts a measured value recorded via the input module, the method comprising:
- operating the industrial control system and activating and deactivating the switching component during operation of the industrial control system;
- predicting at least one of (i) a temporal occurrence of the activation and deactivation operations and (ii) an operating state of the switching component;
- and
- adding a compensation to the measured value to perform a correction of the measured value based on the prediction at a prediction time instant or during a prediction time range with respect to the corruption caused by the electromagnetic interference generated by the activation and deactivation operations of the switching component to reduce the electromagnetic interference which corrupts the measured value recorded via the input module;
- wherein a temporal occurrence of program code instructions in the sequential program is utilized to predict at least one of (i) the activation and deactivation operations and (ii) the operating state;
- wherein in addition a recording module is operated such that, during operation of the industrial control system, a learning process is implemented for a neural network in the recording module, a monitored learning being implemented here;
- wherein a predetermined output to be learned of the prediction time instants through a temporal occurrence of the program code instructions in the sequential program with actually occurring electromagnetic interference is monitored via sensor data of sensors which record electromagnetic interference on at least one of switching components and drives to be activated;
- and
- wherein from the sensor data the actual time instants of the interference are determined and made available to the neural network as additional input variables.
An industrial control system comprising:
- an automation controller having a sequential program;
- an actuator configured to actuate a switching component of power electronics of the industrial control system, the switching component being activated and deactivated during operation of the industrial control system;
- an input module, activation and deactivation operations of the switching component causing electromagnetic interference which corrupts a measured value recorded via the input module;
- a predictor configured to predict a temporal occurrence of at least one of (i) the activation and deactivation operations and (ii) an operating state of the switching component;
- a corrector configured to correct the measured value by adding a compensation to the measured value at a prediction time instant or during a prediction time range with respect to the corruption by the electromagnetic interference generated by the activation and deactivation operations of the switching component to reduce the electromagnetic interference which corrupts the measured value recorded via the input module;
- and
- a recording module including a neural network, the recording module being configured to perform a learning process for the neural network during operation of the industrial control system, the recording module being further configured to implement a monitored learning, in which a predetermined output of the prediction time instants through the temporal occurrence of the program code instructions in the sequential program with the actually occurring electromagnetic interference to be learned is monitored via sensor data of sensors which are arranged on at least one of (i) the switching components and (ii) drives to be activated;
- and
- wherein the recording module is further configured to determine actual time instants of the interference from the sensor data and provide said determined actual time instants to the neural network as additional input variables.
Dependencies are inferred from the claim text.