Design of Quantitative Risk Assessment System for Ship Longitudinal Motion Based on Analytic Hierarchy Process

In order to ensure the normal operation of ship navigation and reduce the risk of ship longitudinal movement, a quantitative assessment system of ship longitudinal movement risk based on Analytic Hierarchy Process (AHP) is designed. Through the Beidou positioning module, external antenna, single-chip control module and power supply module, the hardware part of the ship's longitudinal movement risk quantitative assessment system is designed. Through the determination of the ship's longitudinal movement risk evaluation index, the analytic hierarchy process is used to determine the speed, heading, sea condition and frequency. The relative importance of each risk index is evaluated, and the weight of the evaluation index is calculated. On this basis, the ship was built. The quantitative model of ship longitudinal movement risk assessment uses genetic algorithm to calculate the optimal solution of the parameters, establishes the risk assessment interval, and determines the degree of risk. Using embedded Linux technology, the AHP-based quantitative assessment system design for ship longitudinal movement risk is realized on the C/S client. The experimental results show that the quantitative assessment system of ship longitudinal movement risk based on the analytic hierarchy process has high accuracy, and can improve the confidence of the evaluation, shorten the evaluation time, and stabilize the frequency and speed of the ship's longitudinal movement. (C) 2022 Jordan Journal of Mechanical and Industrial Engineering. All rights reserved