Research on Digital Transparency Technology System of Non-Exposed Space 非暴露空间的数字透明化技术体系研究

Non-exposed space is defined relative to exposed space, and mostly refers to indoor or semi-indoor scenes, such as urban rail transit, tunnels, coal mines, factories, shopping malls, hospitals, etc. Navigation and location information are closely related to human production and life. No matter in exposed or non-exposed spaces, it is increasingly urgent to obtain location information of mobile terminals quickly and accurately and to provide navigation and location services. Therefore, it is necessary to use the spatial digital technology to complete the three-dimensional visualization modeling of the spatial structure, buildings and facilities of the non-exposed space using a unified spatial coordinate system and BIM technology, so as to realize the spatio-temporal integration of the non-exposed space and the exposed space. Data twinning and structural perspective, complete the smooth transition of business applications in the two spaces, and enhance people's sense of comfort and security in non-exposed spaces. This paper will build the structure of the digital transparency technology system for non-exposed spaces, discuss the key technologies, and analyze people's needs for non-exposed spaces.人们每天的生活都是在暴露空间和非暴露空间中进行切换的。因此，开放空间和非暴露空间就是人们生活空间的全部。随着城市建设的快速发展，地下空间或地面的非暴露空间，建筑物或设施构造的越来越复杂。在非暴露空间内，精准定位信号难以获取，电子地图道路拓扑信息很不完善，从而使导航电子地图的导航指引困难，空间资产管理不易进行，导致非暴露空间中的工作和生活很不方便。非暴露空间的空间位置动态服务的困难，就像一堵墙，挡住了人们广泛开展生产和生活活动的快速拓展。因此，研究如何将非暴露空间“透明化”，打破建筑单元BIM独立式系统，形成时空连续的位置服务，提升非暴露空间的利用效率和效能，有很重要的意义。