The research in this paper is not only implemented in griddaen data grid system , but also tested widely under the china national grid environment . the results of tests indicate that fdss can achieve uniform and high - efficient coordination of multiple domains 本文的研究成果不但应用在网格数据引擎griddaen中,并且在中国国家网格的环境下进行了广泛的测试。测试结果表明,联邦数据服务系统fdss能够实现多域之间一致和高效的协同。
Considering the superiority of the completely relational database management of spatial data and attribute data , we adopted the spatial data engine to combine the map special data of the forest resource information with the relationship database system , and realized the management and service of data after designing the attribute data form and special data form in detail 考虑到空间数据和属性数据的全关系型数据库管理的优越性,采用空间数据引擎技术,将森林资源信息数据库中所包含的地图空间数据存储到关系数据库系统中,对属性数据表和空间数据表进行了详细设计,实现数据的管理与维护。
This dissertation will focus on how to convert the autocad graphical map to gis data suitable for the upmis , through the means of application of geodatabase data module in arcgis and spatial database engine technology to the realize the effective establishment of geographical information database 本文以如何利用arcgis的geodatabase数据模型和空间数据引擎技术,探讨将已建立的autocad数字地形图转换为适用的地理信息系统(简称gis )数据,以便更高效地建立地理信息数据库。
Dandong power supply bureau distribution management information system has adopted three - tiered architecture , workflow technology , space data engine technology , internet / intranet technology , etc , consider practical as building principle , based on products such as arc / info from esri company for its development platform , to make it network , graphics and data integreted 丹东市供电局配电gis管理信息系统采用三层结构,利用工作流技术、空间数据引擎技术、 internet / intranet等技术,从实用化的角度出发,在esri公司的arc / info等产品平台的基础上实现了配电信息化管理的网络化、图数一体化。
Our project has studied the key technologies of data grid , and has designed and implemented a general data grid middleware called griddaen , which can achieve uniform access , transfer and management of distributed , heterogeneous mass datasets and provide a high - performance platform for data - intensive applications and researches over wide area networks . this paper focuses on the key technologies of federated data service in data grid 本课题组对数据网格的关键技术进行了深入的研究,自主设计和实现了一个通用的数据网格中间件?网格数据引擎griddaen ,它能够对分布异构的海量数据进行统一的访问,传输与管理,为广域的数据密集型应用和研究提供高性能的支撑平台。
This thesis discusses the techniques and methods regarding monitoring land use dynamic at a county level based on change detection technigue of remote sensing , data updating and analysis based on gis , and temporal database managerment based on rdbms . the above methods and techniques were applied to the case in changle county ' s land use changes from 1998 to 2000 本文以长乐市为研究区域,从理论与实践的角度,探讨研究县级土地利用变化中基于遥感的动态监测、基于gis的数据更新及其变化分析和基于关系数据库与空间数据引擎相结合的时态数据管理的技术方法。