A Study on the Information Presentation in Second-Loop of Nuclear Power Plant

The main control room of nuclear power plant is shifting from traditional analog control to advanced digital control. The iterative design of human-machine interface makes the presentation of the information diverse, and the cognitive behavior pattern of the operator changes accordingly. This study adopts the method of work domain analysis to sort out the information hierarchy of the second-loop interface of the nuclear power plant, clarifies the relationship between the purpose and means of each information element in the interface, analyzes the interface information demand and the information presentation mode based on the cognitive decision theory, builds the corresponding design principles for the optimal design of the digital interface, and assists the operator to make decisions by optimizing the presentation mode of the interface information.