面向多源数据融合的交通基础设施数字化架构研究

Study on Digital Architecture of Transportation Infrastructure for Multi-source Data Fusion

实现基础设施的数字化,需要融合多种数据源,比如BIM模型、GIS信息、图纸、测控信息、施工过程信息、资产管理信息等等。在交通基础设施领域,既有相关研究多注重于平台的宏观组成和数据分析,尚未成型针对于交通基础设施数字化架构的研究。为了解决交通基础设施架构不明确的问题,在智能制造领域提出"数字孪生"概念的基础上,阐述了交通基础设施数字孪生的基本概念及其应该包含的主要内容,进而提出了交通基础设施数字孪生的基本架构体系—"容器+服务"体系。该体系具有数据存储量大、存储效率高、零配置、部署快捷简便、结构简洁和运行环境稳定等特点。通过计算机信息技术,给出了"容器"的选择和实现方式,对"服务"中的关键内容"语义定义"进行了规范化梳理,总结出一个构件的数字孪生应该包含的信息,然后分别将"容器"和"服务"实例化。在此基础架构上,开发了交通基础设施数字化平台,结合BIM模型、GIS数据、老路以及被交路的航拍数据等多源数据信息,为施工管理的高效、准确决策提供了有力的数据支撑,即实现了多源数据的有效融合。研究表明,本研究提出的多源数据融合的平台架构层次清晰、计算效率高且运行稳定,为数字公路、智慧公路等提供了一种基础设施数字化的解决方案。

To realize the digitization of infrastructure,it is necessary to integrate multiple data sources,such as BIM model,GIS information,drawings,measurement and control information, construction process information,asset management information,etc. In the field of transportation infrastructure,there is a lot of researches on the macro composition and data analysis of the platform,and there is no research on the digital architecture of transportation infrastructure. In order to solve the problem of unclear architecture of transportation infrastructure,based on the concept of ＂digital twins（ DT） ＂ in the field of intelligent manufacturing,the basic concept of transportation infrastructure digital twins and its main content are expounded,and the basic architecture system of the digital transportation infrastructure digital twins,i. e.,＂container ＋ service＂system,is put forward. The system has the characteristics of large data storage,high storage efficiency,zero configuration,quick and easy deployment,simple structure and stable operation environment. Through computer information technology,the selection and realization of ＂container ＂ are given,and the key content,＂semantic definition ＂,in ＂service ＂is standardized. The information that adigital twins of a component should contain is summarized, and the ＂container ＂ and ＂service ＂ are respectively instantiated. On this basis,a digital platform for transportation infrastructure is developed. It combines with multi source data such as BIM model,GIS data,old road and aerial photograph data,which provides a powerful data support for the efficient and accurate decision-making of construction management,i. e.,the effective fusion of multi source data is realized. The research shows that the proposed multi source data fusion platform has clear hierarchy,high computing efficiency and stable operation,it provides a scheme of digital infrastructure for digital highway and intelligent highway.