Expert advice display processing system

An apparatus for providing expert advice in a nuclear power plant, comprising:

• expert system advice means for producing expert system advice as dynamic range values for a parameter and a recommended action providing temporal ordering of the expert advice for changing a parameter value;
• state prediction means for producing a prediction of future values of the parameter;
• alarm management means for producing an alarm message when an actual value of a parameter is outside a range of the range values, producing a threshold prediction message when one of the future values exceeds a predetermined threshold and producing an out of range prediction message when one of the future values is outside the range;
• and
• display processing means for providing a display graphically representing the dynamic range values visually adjacent to the actual value, graphically presenting the prediction, graphically presenting a history of the actual value and displaying the alarm and predication messages.

A method of producing an expert advice display for a nuclear power plant, comprising the steps of:

• (a) producing, using an expert system, expert advice as dynamic range values defining a range of operation for a parameter and an action recommendation temporally ordering the expert advice for changing the parameter;
• (b) producing an alarm message when an actual value of the parameter is outside the range;
• (c) producing a prediction of future values of the parameter;
• (d) comparing the prediction to a threshold and producing a threshold crossing prediction message when the prediction crosses the threshold;
• (e) comparing the prediction to the range and producing an out of range prediction when the prediction is outside the range;
• (f) producing a history of parameter values;
• and
• (g) graphically displaying in visual association the actual value, the range, the prediction, the history, the alarm and prediction messages and the action recommendation.