Pilot Workload Research Based On Information And Control Flow

Modern flight deck interface is more and more complicated. The flight crewcarrying out the flight task is not a collection of actions of supervising and controllingthe aircraft, but is the efficacious integration of crew and aircraft.The research object of this paper is pilot-flying (PF). The information exchangebetween PF and aircraft interface in the flight phase is studied. The information andcontrol interaction between PF and aircraft are called information and control flow.The stimulus-response model is introduced to quantitative analysis information andcontrol flow. A set of standard binary messages is used to express the information andcontrol flow. The IF-THEN pairs are expressions of the pilot’s operation patterns.The information-processing model is used to analysis the information and controlcycles and attention resources allocation.In this paper，cognitive workload defined by the combine of the time durationwhich meets the requirements of the task and height deviation. The cognitiveworkload depends on many factors, and every single factor can’t predict the cognitiveworkload accurately, which has a range for better cognitive workload by the analyticalresult of the experiment data. The differences in attention resources allocation andoperation patterns can lead to differences in cognitive. The higher visual resourcesproportion relative to the manual action resources proportion, the better the cognitiveworkload. In addition, the more slower the information circulation, the higher thecognitive workload.