Master computer ( operation station computer ) is industrial pc with windows2000 as operating system . useing graphical user interface , visual basic technology and ms access data base system , master computer has data capture and displaying , data recording and data enquiring functions . slave computer ( measurement and control unit ) and master computer ( monitoring and management unit ) are connected by serial communication for data exchanging 子站计算机进行数据检测和控制功能，主站计算机是以windows2000作为操作系统的工控机，使用图形操作界面、 vb技术和微软access数据库系统，使主站计算机具有数据采集、查询、显示、记录功能。
Secondly , apart from the spatial character , the operational data of sea area use management are characterized by multi - source , multiple scale , and coordinate , complex type and large quantity , etc , so this paper has laid emphasis on studying the spatial data model and the data framework related to the management of sea area use , solved a series of key technical problems such as check and correction , organization and structrue , quality management and standard norms for the geographical sapce data associated with the management of sea area use , proposed various practical and effective ways of storing and managing spatial and non - spatial data and established the spatial data base system for the management of sea area use 其次，由于海域使用管理业务数据除空间特性外，还具有多源、多尺度、多坐标、类型复杂、数据量大等特征，因此，本文重点研究了与海域使用管理相关的空间数据模型与数据框架，解决了海域使用管理相关地理空间数据的复合与订正、组织与结构、质量管理与标准规范等一系列关键技术问题，并提出了切实有效的空间数据和非空间数据的不同的存储、管理方式，建立了海域使用管理空间数据库系统。
On the bases of discussing the advantages and key technology to access ddb through the mobile agent technology , the writer has utilized mobile agent technology design distributed data base system in the subsystem of information management of military supplies of some armed division , and has realized mobile agent visit to distributed data base under ibm aglet development environment 简要介绍了分布式数据库的系统结构模型，讨论了移动agent技术实现分布式数据库访问的优点和关键技术，并且在武警某师军需信息管理子系统中利用移动agent技术设计分布式数据库系统，在ibmaglet开发环境下实现了移动agent对分布式数据库的访问。
