Experiment and Evaluation of Occupant Cognitive State Based on Situational Awareness Theory

In recent years, with the improvement of the automation level of special vehicles and the explosive growth of the information available on the battlefield, higher requirements have been put forward for occupants’ cognitive level and performance. The first problem is how to master the cognitive state law of the occupant of the special vehicle system in real-time, that is, how to solve the cognitive state recognition problem. In this paper, the representation methods of occupant's situational awareness in physiological and performance aspects were studied by virtual simulation experiments, and the man-machine system of automated special vehicles was taken as the research object. The results show that the level of situational awareness and performance of special vehicle members are significantly increased under the condition of partial task automation; that is, the level of the cognitive state is improved.