Ship maneuvering control method and ship maneuvering control system

摘要

A short-term planned route from a start position that is a ship position at a first time up to an end position that is the ship position at a second time is designed based on a planned route, an estimated encounter marine phenomenon information, operation performance information measured on a ship, and a hull motion model of the ship, the estimated encounter marine phenomenon information being measured on the ship based on actually encountered marine phenomenon information. The short-term planned route makes a first evaluation function optimal, the first evaluation function containing: an index indicating an influence of a fluctuation portion between a planned position that is a ship position planned at the second time on the planned route and the end position; a fuel consumption index when the ship sails along the short-term planned route; and a safety index when the ship sails along the short-term planned route.

主权项

1. A ship maneuvering control method of optimizing a route of a ship, comprising the steps of:
designing a planned route for sailing from a starting point to a destination based on meteorological marine phenomena prediction information and a performance information for the ship: acquiring actually encountered marine phenomenon information and marine phenomenon statistical information by measuring, on the ship, marine phenomena that the ship encounters during sail: acquiring estimated encounter marine phenomenon information based on the actually encountered marine phenomenon information and the marine phenomenon statistical information, the estimated encounter marine phenomenon information being information from a first time that is a current time until a second time that is a near-future time in a route surrounding marine area; acquiring operation performance information by measuring, on the ship, an operation performance of the ship during the sail; and designing a short-term planned route using a computer based on the planned route, the estimated encounter marine phenomenon information, the operation performance information, and a hull motion model of the ship, wherein the short-term planned route is a route from a start position that is a ship position at the first time up to an end position that is the ship position at the second time and by which a value of a first evaluation function becomes an optimal value, wherein the first evaluation function contains:
an index indicating an influence of a fluctuation portion between a planned position that is the ship position planned at the second time on the planned route and the end position;a fuel consumption index when the ship sails along the short-term planned route; and a safety index when the ship sails along the short-term planned route, and wherein the step of designing the short-term planned comprises:
setting a target route passing through the start position and the planned position is set; andsearching the short-term planned route on the basis that an end time is fixed and an end state quantity is free on the target route.