Risk Evaluation on Ship Navigation System Based on Analytic Hierarchy Process and Fuzzy Comprehensive Evaluation Method

Ship navigation system is a necessary factor for the safe navigation of ships. However, the relationship between the factors that affect the ship navigation system is usually very complicated and cannot be directly expressed by mathematical expressions. This paper proposes a risk evaluation method for ship navigation system based on analytic hierarchy process (AHP) and fuzzy comprehensive evaluation (FCE). This paper firstly searched for relevant references to determine the three-level structure of the ship navigation system's fuzzy evaluation, and determined the final comment set of the ship navigation system and the corresponding ten-point score, then through AHP, the weight of each sub-factor relative to the target layer was determined. Finally, the FCE is used to evaluate the ship navigation equipment at multiple levels, so as to obtain the final evaluation result and the score under the tenth scale. The results show that this method can effectively make risk assessment decisions and has certain practical value.