Basic Study on Monitoring System of Coastal Radio Operator for Safe Harbor Traffic

The ship navigation in a bay and harbor is one of the difficult situation for the congested sea area, and a coastal radio operator (port coordinator) usual supports a safe navigation by giving useful navigational information. The navigators make decision to avoid collision, and recognize the navigational situations from their information. In the other word, they manage the safe harbor traffic to control by giving the useful information. We think that their mental and physical workload shows the current and near future harbor traffic condition, and to monitor their workloads leads safe harbor control. In this study, we aim the development of monitoring system for port coordinators as the system of systems toward safe harbor traffic, and we measure ECG, body accelerations, and etc. The measured data read the mental and physical workload for the real situations of the harbor traffic. The results show the heart rate variability (R-R interval) and body accelerations read their mental and physical workload, and that displayed performance is well in the real time.