基于PCWin98经济网络分布式动力大地测量学数据库的设计与实现  

DESIGN AND CONSTRUCTION OF DYNAMICAL GEODESY DATABASE WITH DISTRIBUTION STYLE ON WIN98 ECONOMICAL NETWORK

作　　者：罗少聪[1] 

机构地区：[1]中国科学院测量与地球物理研究所动力大地测量学开放实验室,武汉430077

出　　处：《地球物理学进展》2000年第4期97-103,共7页Progress in Geophysics

基　　金：国家自然科学基金项目(49774223,49925411);中科院重点项目(KZCX2-106);动力大地测量学开放实验室(L97-02)项目联合资助

摘　　要：分析了动力大地测量学数据的结构和应用特点 ,结合现有网络和计算机软硬件状况 ,兼顾使用者的计算机水平和建库的人力物力条件 ,得出了建立大地测量学科学数据库的思路和方案 ,建成基于Win98经济网络分布式动力大地测量学数据库 .基于Win98经济网络、以资源共享方式集成的数据库系统开发环境有很大的在线数据存储能力、灵活分散式的数据库实现模式和调用功能 .实现了以往大型计算机才能完成的系统 .目前 ,系统平时能满足一般需要 ,必要时完成大型复杂任务 .已拥有中国及其邻区原始气象数据、全球平均气压数据、超导观测数据、中国邻区重力场数据、地球自转及其有关数据、海潮模型、重力模型、软件等子库 ,容量达数十千兆 ,为科研提供快捷的数据服务 .为目前普遍使用的区域网用户提供一种可行的科学数据库实现模式 .In this paper, we study the structure of dynamic geodesy data, characteristic for using, considering ability of user computer level, as well as power and resources ourselves, the principia and project established of the database has been generated. Then, a dynamical geodesy database distribution style on Win98 economic net has been finished and come in to use. The system which base on win98 net, mainly use share resource way, has a large online memory holds especially, its flexible function using distrbution style database and called, we can establish a large scientific database that can be bulit on a super computer before. Nowdays, our database system has been developed and it has functions,completing very complex task if we need. For the data type, there are original atmospheric observations, globe average pressure gridded data, superconducting gravimeter raw observations, gravity data on China and its vicinity, earth rotation and relational data, earth gravity model, and the software pocket etc, they up to several ten kilomegas, serve the scientific research. Eventually, our methods set the databadse are also as a demonstration for the using the same network computer system to develop their application dataset built at single computer version.

关 键 词：动力大地测量学 数据库 网络 软件设计 

分 类 号：P227[天文地球—大地测量学与测量工程] TP311.1[天文地球—测绘科学与技术]