一种全球离散格网系统框架下的室内空间网格数据模型  

An indoor spatial grid data model in the frame of DGGS

作　　者：邬群勇[1,2] 曾庆权 张爱国 WU Qunyong;ZENG Qingquan;ZHANG Aiguo(Key Lab of Spatial Data Mining and Information Sharing of Ministry of Education,Fuzhou University/National&Local Joint Engineering Research Center of Satellite Geospatial Information Technology,Fuzhou 350108,China;The Academy of Digital China(Fujian),Fuzhou 350003,China;School of Computer and Information Engineering,Xiamen University of Technology,Xiamen,Fujian 361024,China)

机构地区：[1]福州大学空间数据挖掘与信息共享教育部重点实验室/卫星空间信息技术综合应用国家地方联合工程研究中心,福州350108 [2]数字中国研究院(福建),福州350003 [3]厦门理工学院计算机与信息工程学院,福建厦门361024

出　　处：《导航定位学报》2020年第2期55-62,共8页Journal of Navigation and Positioning

基　　金：国家自然科学基金项目(41471333);中央引导地方科技发展专项(2017L3012);福建省自然科学基金项目(2016J01198);福州大学空间数据挖掘与信息共享教育部重点实验室开放基金课题(2018LSDMIS07)。

摘　　要：针对室内外数据模型兼容性低,室内模型缺乏统一空间参考框架的问题,提出1种全球离散格网框架下的室内空间网格模型:室内模型通过引入全球离散格网系统(DGGS)作为坐标参考系统提供位置编码信息,并将DGGS作为模型的几何结构基础对室内空间离散化;然后以离散空间网格作为基本组织单元,对模型的类型系统进行设计;最后利用格网系统的层次结构与网格索引特性完成基于A*算法的室内路径规划。实验结果表明,该模型具有在统一框架下空间规划计算的可行性和有效性。Aiming at the problems of the low-compatibility of indoor/outdoor data models and the lack of a unified spatial reference frame for indoor models,the paper proposed an indoor spatial grid model in the frame of discrete global grid system(DGGS):the information of location coding was provided by the indoor spatial grid model through introducing DGGS as the coordinate reference system,and DGGS was deemed as the geometric structure basis of the model to discretize the indoor space;then the discrete space grid was used as the basic organizational unit to design the type system of the model;finally the indoor path-planning based on A*algorithm was completed by using the characteristic of the hierarchical structure and the grid-indexing of the grid system.Experimental result verified the feasibility and effectiveness of the spatial planning and computing of the model under the unified reference frame.

关 键 词：空间参考框架 全球离散格网 位置编码 室内模型 路径规划 

分 类 号：P228[天文地球—大地测量学与测量工程]