摘要
在应急事件保障中,多源资源环境数据相对孤立、关联性差,难以实现统一检索。从业务应用实际问题出发,基于地球剖分网格思想,将多源资源环境数据纳入到统一的网格参考基础下,多部门多源资源环境数据以网格编码为基础实现在逻辑上的统一组织,从而形成统一关联查询能力。以形状特征点、线、面为区分对资源环境数据进行网格编码后,将其纳入到编码索引表中,通过相关编码计算方法实现了数据的统一检索。实验表明,上述方法实现了多源资源环境数据的统一检索,提升效率10倍左右。
In the emergency treatment,multi-source resource environmental data,with isolation and poor relation,is difficult to be integrated retrieved.From the practical problems of applications,this article brings multi-source resource environmental data into an integrated grid reference system.Based on grid code,multi-source resource environmental data is integrated organized logically and integrated retrieval would be realized.With shape as the distinction,grid codes are given,and storage in code index table.According to code computing method,multi-source resource environmental data could be integrated retrieved.Real experiments show that,multi-source resource environmental data integrated retrieval is realized,and improve the efficiency by about 10 times.
作者
吴飞龙
程承旗
陈波
褚福林
WU Feilong CHENG Chengqi CHEN Bo CHU Fulin(Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China Troops 31009, Beijing 100088, China College of Engineering, Peking University, Beijing 100871, China)
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2017年第7期943-949,共7页
Geomatics and Information Science of Wuhan University
基金
国家重点基础研究发展计划(61399)
国家高分重大专项(30-Y30B13-9003-14/16
03-Y30B06-9001-13/15)~~
关键词
资源环境数据
剖分网格
多源
网格编码
统一检索
resource environmental data
subdivision grid
multi-source
grid code
integrated retrieval
作者简介
吴飞龙，博士，主要从事地理空间网格计算方法研究。feilong270@qq．com
通讯作者：程承旗，博士，教授。ccq@pku．edu．cn
