Implementation and application of digital twin-based visualization technology for spatial and temporal variation of seafloor suspensions

Qiao Yue; Shan Hongxian; Wang Hongwei; Zhu Chaoqi; Sun Zhiwen; Jia Yonggang

doi:10.12284/hyxb2023082

Volume 45 Issue 8

Aug. 2023

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Article Navigation > Haiyang Xuebao > 2023 > 45(8): 166-177

Qiao Yue，Shan Hongxian，Wang Hongwei, et al. Implementation and application of digital twin-based visualization technology for spatial and temporal variation of seafloor suspensions[J]. Haiyang Xuebao，2023, 45(8)：166–177 doi: 10.12284/hyxb2023082

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Implementation and application of digital twin-based visualization technology for spatial and temporal variation of seafloor suspensions

doi: 10.12284/hyxb2023082

Qiao Yue^1
,,
Shan Hongxian^{1, 2},
Wang Hongwei¹,
Zhu Chaoqi^{1, 2, 3},
Sun Zhiwen¹,
Jia Yonggang^{1, 2
,
,}

1.
Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao 266100, China
2.
Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
3.
Key Laboratory of Submarine Geosciences and Prospecting Techniques, Ministry of Education, Ocean University of China, Qingdao 266100, China

Received Date: 2022-12-08
Rev Recd Date: 2023-03-08

Available Online: 2023-08-16

Publish Date: 2023-08-31

Abstract

Abstract

The virtual ocean platform constructed by digital twin technology can further realize the 3D visualization and analysis of seabed environmental monitoring data. Based on the long-term in-situ monitoring data of the deep seabed, this paper uses Unity3D technology to build a virtual marine environment with multi-model fusion, and initially establishes a digital twin system for marine engineering geological environment; combines MATLAB and ArcGIS data analysis technology to realize intelligent monitoring, data analysis, human-computer interaction and auxiliary decision-making; the study further constructs a virtual environment particle system to conduct a 3D visualization and analysis of the near-bottom suspended sediment concentration elevation event in the northern part of the South China Sea. The results show that there are large spatial and temporal differences in suspended matter concentration, particle number and aggregation degree in the virtual environmental particle system. In particular, when the suspended matter concentration is maintained at a high level, particles are found to collide and overlap with each other, and the denser microclusters are derived in space. When the suspended matter concentration rises further to the peak, the number of microclusters increases and occupies most of the volume of space, forming a highly aggregated suspended matter aggregate with a wider coverage of suspended particles. This paper is based on image analysis techniques and compares the visualization results with real seafloor cameras with relative errors in the range of 0.16%–2.80%, which is highly feasible.
- digital twins,
- concentration of suspended solids,
- visual analysis,
- virtual particle system,
- in situ long-term monitoring of deep sea

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References

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