Vessel Multi-Parametric Collision Avoidance Decision Model: Fuzzy Approach

The application of fuzzy logic is an effective approach to a variety circumstances, including solutions maritime anti-collision problems. article presents upgrade the radar navigation system, in particular, its collision avoidance planning tool, using decision model that combines dynamic parameters into one decision—the course. In this paper, multi-parametric based on proposed. calculates course alteration situation. First, collects input data target vessel and assesses risk. Using time delay, four are calculated for further processing as variables inference system. Then, method used calculate alteration, which considers vessel’s safety domain International Regulations Preventing Collisions at Sea (COLREGs). special feature tuning with results database correct obtained manual plotting method. validation was carried out six selected cases simulating encounters open sea from different angles any visibility. case studies have shown computes well situations where own give-way position. addition, provides good when violates COLREG rules. tool can be automated serve basis implementation manoeuvrability vessels, weather conditions, multi-vessel encounter situations.