全国产技术栈城市级高斯重建与智能交互应用OA

To address the critical challenges of industrial chain security risks,data security vulnerabilities,and high interaction barriers caused by long-term dependence on foreign technologies in urban digital twin construction,we proposed and implemented an urban intelligent twin sys-tem based on fully domestic technology stack.Taking the self-controllable SS Engine as the technical foundation and deeply integrating Huawei Ascend AI computing power with the HarmonyOS ecosystem,we establish an integrated three-in-one technical framework,achieving 100%au-tonomous code ownership.To overcome bottlenecks in 3D reconstruction efficiency,we reconstructed core operators of 3D Gaussian splatting al-gorithm,enabling distributed collaborative production across eight Ascend NPUs on a single server.For intelligent interaction,we developed a se-mantic interaction engine powered by large language models.Taking the 176 km² entirety of Longhua District,Shenzhen City as a validation case,the system completed full-process technical verification spanning data acquisition,algorithm deployment,engine adaptation,and interactive integration,demonstrating stable support for 3 000 concurrent 2D data streams and 1 000 concurrent 3D real scene data streams.The system has achieved significant results in urban refined management and intelligent emergency response scenarios.