Quantitative research on ship domain based on ship collision avoidance

Based on the analysis of the concept of ship domain, starting from the reality of collision avoidance, according to the international rules for preventing collision at sea and the practices of seafarers in collision avoidance, the scope of ship field is quantitatively studied, so that the ships sailing on the sea always keep a safe area in different waters, so as to achieve good collision avoidance effect and reduce the occurrence of collision accidents.