Construction of Fitz's Law Model for Ship Operator in Long Voyage

The long voyage of ships has the characteristics of quarantine closed, 24-hour continuous duty and long voyage to distant sea.The state of long voyage will affect the operator's operation ability, and then affect the operation performance in the process of human-computer interaction.As a result, the human-computer interaction task that can be completed under conventional conditions may not be completed in the long voyage state.However, the existing Fitz's law model lacks the consideration of the long voyage state, which leads to errors in the calculation of human-computer interaction performance.Therefore, based on the original Fitz's law model, this paper designs an experiment to collect the steering parameters under the condition of 90 days long voyage. Eight ship operators were selected to collect the data of operating parameters. The model of parameter change rule of operator's Fitts law in the state of 90 days long voyage is constructed.The model can be used to calculate the execution time of human-computer interaction tasks for each day in the 90-day long voyage state.