轨道交通工程设计元数据应用研究

Research on the Application of Metadata in Rail Transit Engineering Design

目前轨道交通各专业设计过程及最终的设计成果交付大部分使用的是平面图纸的形式,而数据的彼此交付多采用表格来完成。若没有标准化的分类描述处理方式,会给不同专业、不同部门之间协同合作带来极大不便。为解决该问题,通过对轨道交通工程设计数据资源进行整合梳理,根据元数据标准规范设计数据的语义、格式、结构、描述,建立一个轨道交通行业统一的元数据分类及描述结构标准;按此标准建立一个设计者习惯填报的数据格式,并通过对各专业填报的元数据文件按照统一格式进行结构化格式转换、IFD编码、校验,形成一个标准化数据文件,既可以达到铁路各专业人员协同设计交互文件的目的,又可以达到直接交付工管中心的要求。该研究实现轨道交通工程设计元数据准确、便捷的填报、维护、交付和利用,使轨道交通设计成果元数据贯穿设计、施工、运营、维护整个铁路生命周期,提升设计精细化管理能力,同时实现设计成果的无纸化交付和管理。

At present,most of the design process and final design results delivered by various professional rail transit institutions are in the form of plane drawings,and the mutual delivery of data is mostly completed by using tables.Without standardized classification and description processing method,great inconvenience will be generated in the collaboration between different professions and departments.In order to solve this problem,this study integrates and sorts out the data resources of rail transit engineering design,develops the semantics,format,structure and description of data according to the metadata standard specifications,and establishes a unified metadata classification and description structure standard for the rail transit industry.According to this standard,a data format is established that designers are accustomed to filling in,and a standardized data file is formed by the structured format conversion,IFD coding and verification of the metadata files filled in by each profession in accordance with the unified format.It can achieve not only the collaborative design of interactive files by railway professionals,but also meet the requirements of direct delivery to the industrial management center.The research achieves accurate and convenient filling,maintenance,delivery and utilization of rail transit engineering design metadata,enables the metadata of rail transit design results to serve the entire railway life cycle from design,construction,operation to maintenance,improves the design refinement management capabilities,and realizes paperless delivery and management of design results.