基于WebGIS的形变监测成果管理与展示系统  

WebGIS-Based Management and Visualization System for Geodetic Deformation Datasets

作　　者：郭晓彤 王华[1] 吴希文 柏俊 戴泉 Guo Xiao-tong;Wang Hua;Ng Alex Hay-man;Bai Jun;Dai Quan(School of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006,China;Guangzhou Hi&Chief Information Technology Co.Ltd.,Guangzhou 510300,China)

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006 [2]广州海川信息科技有限公司,广东广州510300

出　　处：《广东工业大学学报》2020年第6期50-55,共6页Journal of Guangdong University of Technology

基　　金：国家重点研发计划项目(2017YFC1500500);国家自然科学基金资助项目(41672205);大学生创新创业项目(Xj201911845305)。

摘　　要：随着空间对地观测技术在地表形变监测中的广泛应用,对形变监测成果管理与展示的需求日益增加。一方面,全球定位系统(Global Positioning System,GPS)和合成孔径干涉雷达(Synthetic Aperture Radar Interferometry,InSAR)等测量技术监测获取的数据量越来越大、类型越来越多,急需进行有效管理;另一方面,监测成果的展示效果需要更加直观和人性化。基于网络地理信息系统(WebGIS)的技术,通过OpenLayers地图框架和ASP.NET技术(Active Server Pages.NET Framework,ASP.NET),采用依比例分级展示点云数据的方法可视化InSAR数据,采用依比例生成有向线段的方法可视化GPS速度数据;开发了形变监测成果在线展示系统,利用数据库技术规范了监测数据的存储,实现了变形监测成果的高效科学管理,提高了形变监测成果的展示、编辑、管理的效率。With the wide application of space-to-earth observation technology in surface deformation monitoring,there is an increasing demand for the management and display of deformation monitoring results.On the one hand,effective management is needed to deal with the rapidly increasing data amounts from growing numbers of measuring frequencies and monitoring technologies(such as GPS and InSAR).On the other hand,the demonstration effect of the results obtained from the monitoring needs to be more intuitive and humane.In order to solve these two problems,based on the technology,this paper develops an online display system of deformation monitoring results throughOpenLayersmapframeworkand ASP.NET technology.In this system,InSAR data can be visualized by presenting point cloud data in a scale and GPS velocity data can be visualized by generating directed line segments in a scale.By using database to standardize the storage of monitoring data,this system has realized the efficient scientific management of the deformation monitoring results and greatly improved the efficiency of the displayeffect,editing ability and management efficiencyof the deformation monitoring results.

关 键 词：全球定位系统 合成孔径干涉雷达 网络地理信息系统 OpenLayers地图框架 变形监测 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论] P208[自动化与计算机技术—计算机科学与技术]