Efficient and dynamic updating of the component-level digital twin model of railway tun-nels is a key foundation for refined control of railway engineering.However,existing replacement-based update methods involve redundant processing of a large amount of existing data,resulting in high update costs and low efficiency.To address these issues,this paper proposes a progressive up-date method for the component-level digital twin model of railway tunnels,and designs a three-di-mensional tile structure for railway tunnels with multiple levels of detail that can support efficient model updating.A multi-level progressive update algorithm suitable for cascading updates is also proposed and experimental verification is conducted using typical large-scale digital twin model data of railway tunnels.The results show that the proposed method effectively improves the time efficiency of updating the component-level digital twin model of railway tunnels in the GIS environment and can effectively support efficient dynamic updating of the model and high-performance visualization and analysis applications.
关键词
数字孪生铁路/隧道/渐进式更新/三维瓦片/多细节层次
Key words
digital twin railway/tunnel/progressive update/3D tiles/LOD(Level of Detail)
维普
万方数据