摘要
为构建满足室内位置服务的导航网络和提高构建导航网络的便捷性,在建筑信息模型(BIM)作为室内三维数据来源的基础上,提出一种基于对偶图思想的室内导航网络构建方法。该方法基于BIM模型与限定德劳内(Delaunay)三角剖分细化算法,利用对偶原则的思想,通过解析BIM模型的IFC文件,将其所包含的语义信息、拓扑关系和3D几何关系进行映射,提取出适用于室内导航及位置服务的轻量化网络模型,并以某建筑数据为基础进行了实例研究。结果表明:该方法能够将BIM模型中的导航要素进行抽象化表达,基本满足跨楼层室内导航服务的要求,并支持上下文感知的室内位置服务,所构建的点-边几何导航网络模型具有设置灵活、寻路效率高的特点。
In order to construct a navigation network satisfying the indoor location-based service and improve the convenience of building navigation network, based on the Building Information Model(BIM) as the indoor three-dimensional data source, a method of building indoor navigation network based on dual graph is proposed. The method is based on the BIM model and Constrained Delaunay triangulation refinement algorithm, using the idea of the dual principle, the IFC file of the BIM model is parsed, and the semantic information, topological relationship and 3 D geometric relationship contained in the BIM model are mapped. This method extracts lightweight network model suitable for indoor navigation and location service, and based on some building data, a case study is carried out. The results show that this method can abstract the navigation elements in BIM model, basically meet the requirements of cross floor indoor navigation service, and support the context aware indoor location service. The point edge geometric navigation network model has the characteristics of flexible setting and high efficiency of road finding.
作者
张炜锴
郑加柱
陈媛媛
ZHANG Weikai;ZHENG Jiazhu;CHEN Yuanyuan(College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China)
出处
《森林工程》
2020年第3期106-111,共6页
Forest Engineering
基金
江苏省测绘地理信息科研项目(JSCHKY201708)。
关键词
导航网络
位置服务
建筑信息模型(BIM)
三角剖分
Navigation network
location-based service
Building Information Model(BIM)
triangulation
