Method and Control System for a Technical Plant Using a Trend Curve Diagram

A control system for a technical plant, comprising:

• at least one operator station server;
• and
• an operator station client, the operator station server including a visualization service for outputting items of image information to the operator station client;
• wherein the operator station server is configured to generate an item of image information representing a temporal course of temporally aggregated measured values of a measured variable from a measured variable pertaining to a technical object of the technical plant;
• wherein the visualization service is configured to transmit the item of image information about the temporal course of the temporally aggregated measured values of the measured variable to the operator station client;
• wherein the operator station client is configured to visually present the temporal course of the temporally aggregated measured values to an operator of the technical plant;
• wherein the operator station server is further configured to add to the temporally aggregated measured values an item of information respectively about which fuzziness the temporal aggregation of the respective measured value possesses in relation to the non-aggregated measured values considered for the temporal aggregation of the respective measured value, and to transmit the item of information to the operator station client, the fuzziness of the temporal aggregation of the respective temporally aggregated measured value forming a deviation of the respective temporally aggregated measured value from the non-aggregated measured values considered for the temporal aggregation of the respective temporally aggregated measured value;
• wherein the operator station client is further configured to visually present the item of information about the fuzziness of the temporal aggregation of the temporally aggregated measured values to the operator of the technical plant together with the temporal course of the temporally aggregated measured values such that a size of a visual representation of a respective temporally aggregated measured value depends on the fuzziness of the temporal aggregation of the temporally aggregated measured values;
• and
• wherein the control system is configured to visually represent the temporally aggregated measured values in a circular shape.

A method for visual representation of temporally aggregated measured values, comprising:

• a) generating an item of image information representing a temporal course of temporally aggregated measured values of a measured variable pertaining to a technical object of a technical plant via an operator station server of a control system of the technical plant;
• b) adding an item of information to the item of image information about which fuzziness the temporal aggregation of a respective temporally aggregated measured value possesses in relation to the non-aggregated measured values considered for the temporal aggregation of the respective measured value, the fuzziness of the temporal aggregation of the respective temporally aggregated measured value being a deviation of the respective temporally aggregated measured value from the non-aggregated measured values considered for the temporal aggregation of the respective temporally aggregated measured value;
• c) transmitting the item of image information to an operator station client;
• d) visually presenting the temporal course of the temporally aggregated measured values and the information about the fuzziness of the respective temporal aggregation of the temporally aggregated measuring points to an operator of the technical plant, the information about the fuzziness of the temporal aggregation of the temporally aggregated measured values being visually presented to the operator of the technical plant such that a size of a visual representation of a respective temporally aggregated measured value depends on the fuzziness of the temporal aggregation of the temporally aggregated measured values, and the temporally aggregated measured values being visually represented in a circular shape.