Method for establishing virtual section buoy motion model at small scale

By constructing capsule-shaped colliders and adaptive radius spherical particle models at a small scale, the accuracy and computational resource problems of small-scale ocean profiling buoy simulation in existing technologies have been solved, and high-fidelity real-time motion simulation has been achieved.

CN122197731BActive Publication Date: 2026-07-21STATE OCEAN TECH CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE OCEAN TECH CENT
Filing Date
2026-05-12
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately simulate the motion of ocean profile observation buoys at small scales, especially in high-precision hydrodynamic simulations where computational resources are high and the complex microscopic physical processes near the buoy surface cannot be accurately depicted. Furthermore, particle method simulations suffer from a severe disconnect between visual and physical aspects.

Method used

A profile buoy collision model is constructed using an integrated rigidly connected capsule-shaped collision body. Combined with an adaptive radius spherical water flow particle model, a spherical detection area is constructed through the center of gravity to screen collision objects. The action force and righting moment are accurately calculated in both above-water and underwater states to achieve high physical fidelity motion simulation.

Benefits of technology

It achieves high-precision, low-computational-load, real-time stable motion simulation of ocean profile observation buoys at small scales, accurately reproduces the real motion characteristics of buoys under the action of ocean currents, reduces the consumption of simulation computing resources, and meets the needs of real-time interaction.

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Abstract

The method for establishing a virtual profile buoy motion model at a small scale belongs to the technical field of virtual profile buoys. The method comprises the following steps: S1, establishing an ocean collision model, wherein the ocean collision model comprises a profile buoy collision model and an ocean current particle collision model, the profile buoy collision model is an ocean profile observation buoy composed of a plurality of capsule-shaped collision bodies, and the ocean current particle collision model comprises a plurality of spherical current particles; S2, performing self-collision detection on the spherical current particles and performing collision detection on the profile observation buoy and the spherical current particles; and S3, calculating the force acting on the profile observation buoy in two states of the profile observation buoy being located on water and in water, respectively, and synchronously updating the motion parameters of the profile observation buoy and the spherical current particles based on the force. The method realizes high-precision, low-computational-load and real-time stable motion simulation of the ocean profile observation buoy at a small scale.
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