基于双时态的高速公路设施时空数据模型研究

Study on Spatiotemporal Data Model of Expressway Facilities Management System Based on Bi-temporal

本文首先简要分析了现有高速公路设备设施管理系统对时空数据管理能力上的不足,强调了时空数据对管理高速公路设备设施的必要性。在双时态关系数据结构的基础上,结合空间数据模型提出了双时态空间数据模型,并依据高速公路设施管理的特点构建了相应的数据结构和数据操作步骤。为实现高速公路设施管理从三维空间化到时间空间四维化的跨越作出了有益的探索。

While the deficiencies on the spatiotemporal data management capability of the exciting expressway facilities management systems are analyzed, and the necessity of the spatiotemporal data for expressway facilities is stressed in this paper, a bi-temporal spatial data model is proposed on the basis of bi-temporal spatial relational data structure. According to the characteristics of expressway facilities management, the corresponding data structure and data operation steps are constructed, which can make beneficial exploration for the realization of expressway facilities management from the three-dimensional to spatiotemporal four-dimension.