摘要
针对基于可扩展标记语言(XML)的地理信息数据交换平台存在数据冗余量大、传输效率低、通用性差、难以在网络地理信息系统中应用等问题,本文提出了一种基于GeoJSON的异构地理信息数据集成模型。模型采用GeoJSON作为技术主线,以数据交换池为核心,通过数据交换池建立应用系统与各异构系统之间的联系,并利用数据交换子节点建立数据交换池与各异构系统的通信连接,对GeoJSON信息流进行上传与下载等操作。实验表明:同XML相比,GeoJSON信息流提高了数据传输效率。
In view of there are some problems such as large data redundancy,low transmission efficiency,poor versatility and difficult to use in the network geographic information system in the Geographic information data exchange platform which is based on XML,This paper proposes a GeoJSON-based heterogeneous geographic information data integration model. The model take GeoJSON as the technology main line and the data exchange pool as the core. The role of data exchange pool is to establish the connection between the application system and heterogeneous systems. The role of Data exchange child node is to establish the communication connections between the data exchange pool and heterogeneous system and the operations of upload and download for the GeoJSON information flow.Results of experiments show that GeoJSON information flow is more efficient than XML in data transmitting.
作者
王东兴
朱翊
WANG Dongxing;ZHU Yi(Liaoning Technical University, Fuxin 123000, China;China Academy of Surveying and Mapping, Beijing 100830, China)
出处
《测绘与空间地理信息》
2018年第6期138-140,146,共4页
Geomatics & Spatial Information Technology
