ABSTRACT
The Human-Computer Interface (HCI) of a Distributed Control System (DCS) is the most important interaction medium between human and industrial systems. The cognitive performance of DCS HCI can directly affect the operational safety and efficiency of industrial systems. The cognitive behavior of DCS HCI is studied to clarify the interaction process and influencing factors during DCS operation and monitoring tasks. The test indexes and methods based on eye movement data and subjective fatigue data are proposed. The DCS HCI cognitive performance test procedure is designed by combining eye tracking tests and subjective fatigue tests. The DCS HCI cognitive performance of a black background and a gray background is tested and compared. The results show that the gray background DCS HCI has an advantage in cognitive performance, and the black background DCS HCI brings higher cognitive fatigue and lower efficiency. This method is significant in reducing the cognitive load and improving the interaction efficiency for DCS HCI.
