Here we study the method of using com subassembly and ole automation technology to solve the integrate problem . this technology can fulfill the task of data ' s sharing and conversion , supporting the synchronization of space decision reasoning analysis and space information manipulation , realizing the seamless integration . the paper based on solving the evaluation of land using problem , by anglicizing the deficiency of gis ' s space decision and the merit of egis 这里我作了用com技术及其统一数据传输机制和ole自动化功能进行es和gis集成的研究：其中，将es作为控制器， gis作为自动化对象连接起来，能很好地完成数据的转换与共享，支持空间决策推理分析和空间信息操作的同步进行，本文由此重点讨论了com及ole自动化技术。
At the same time , this thesis provide security routeway for user identity validation by encrypt component of our development ; this thesis also provides a solution for the complex data query and reports building and printing of web based system by bonding xml , dhtm , ole automation and asp . net 作者还自行开发了加密组件，为信息系统安全以及用户身份认证提供了有力工具；综合使用xml 、 dhtml 、 asp . net和oleautomation技术，解决了web平台上复杂查询和报表打印的难题。
In this paper , we mainly research asp , xml and com + of microsoft . at the same time , we also discuss the theory of data modeling with our project practice . at the end of the paper , we state another practise of web based distributed system , the research and development of web based email system . the view point of applying com + and xml to web based information system in this paper describes a promising prospect of this kind of problems and we come up with a applying practice with our project . by the research of component technology , this paper deeply discusses the features of all kinds of distributed system based on web with xaec project . this paper also provides a solution for the complex data query and reports building and printing of web based system by bonding xml , dhtm , ole automation and asp 文中重点研究了微软公司asp技术， xml技术和com +技术，对于数据建模的理论也结合项目实际做了相关探讨。论文最后附加了基于web开发技术研究的另一个实例，基于web的电子邮件系统的研究和实现。文中所提出的关于将com +技术和xml技术引入基于web的信息系统的理论为实现此类问题描述了一个新的前景并给出了实际用例；通过对组件技术的分析，结合本次项目中所开发出来的一些中间层组件的实现，本文较深入地研究了基于web的分布式系统的各种特点；通过xml技术、 dhtml ， asp技术和oleautomation技术的结合，本文为web平台上解决复杂查询和报表打印的难题提出了解决方案。
The software of the chief station is composed of monitoring module and communicating module . the monitoring module involves the use of pc - labcards , the method of a precise timer , the principle of pid autocontrol and how to use it in the project , the realization of all kinds of reports with the ole automation skill , while the communicating module discusses the way of communication between the chief station and the scheduler based on the c / s structure . both monitoring module and communicating module are established on the database , so this paper particularly describes the access methods to ms sql server and the advantage of database stored procedure 论文先概要介绍了热网微机监控系统的需求分析和总体设计，然后在此基础上详细地阐述了首站软件实时监控模块和通信模块的实现细节，描述了工业采集卡的用法；提出了一种基于内核timer对象的精确定时方法；介绍了pid自动控制原理及其改进算法和现场控制参数的整定方法；用ole自动化技术扩充了visualbasic6 . 0的报表功能；在c / s用模型的基础上实现了首站和调度站的异步通信；讨论了visualbasic6 . 0对mssqlserver的数据存取方法和数据源驱动原理，在此基础上充分利用数据库存储过程完成了系统部分功能。
