Inter-ship distance real-time determination system and method under icebreaker navigation protection

Abstract

The invention discloses an inter-ship distance real-time determination system and method under icebreaker navigation, and the method comprises the steps: 1), collecting sea ice environment data of a ship navigation region and the ship information of an icebreaker and a navigated ship, and calculating the ship suggested speed of a ship under a specific ice condition according to a polar region iceregion navigation system; 2) according to the historical data of the ship navigation speed, extracting ship navigation speed distribution under icebreaker navigation protection to obtain fitted speeddistribution; 3) establishing a ship following distance simulation model, and calculating the shortest safe following distance; and 4) comparing the real-time car-following distance measured by the distance measuring device with the shortest safety car-following distance output by simulation, and carrying out early warning according to the comparison result. According to the method, the collisionrisk between ships under icebreaker navigation protection is effectively reduced, the navigation safety of the arctic-ship-route ships is guaranteed, and the method has guiding significance for determining the following distance under the arctic-ship-route ship formation navigation operation mode.

Description

technical field [0001] The invention relates to the field of ship formation navigation, in particular to a system and method for determining the distance between ships in real time under the escort of an icebreaker. Background technique [0002] At present, the commercial navigation of the Arctic waterway has become possible. As a typical ship team operation mode in the polar ice region, the icebreaker escort operation has greatly expanded the time window for ships to navigate in the polar ice region. At the same time, the navigation environment in polar ice regions is complex and changeable, and ship collision accidents under the escort of icebreakers occur frequently. When polar ships are sailing in formation, the following distance between ships is a key factor affecting ship collisions. Due to the complex and changeable sea ice environment, there is no scientific calculation method for the following distance of a ship escorted by an icebreaker, and it is mainly determine...

AI Technical Summary

Problems solved by technology

Due to the complex and changeable sea ice environment, there is no scientific calculation method for the following distance of a ship under the escort of an icebreaker, and it is mainly determined by the experience of the pilot

If the following distance of the escorted ship is too short in the ice channel opened by the icebreaker, when the icebreaker hits solid ice or suddenly becomes ice trapped, the ship is very likely to collide; if the following distance of the escorted ship is too large, the ice channel The broken ice on both sides will quickly fill the entire channel and freeze again, and the ships with low ice class behind will be ice trapped

Only relying on the experience of the pilot to determine the car-following distance, the operation is highly dangerous, and the safety of the ship cannot be effectively guaranteed

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