摘 要
本
系统开发完成后可以在录井现场全面推广应用,也可为钻井系统提供服务。
本文介绍了基于
Delphi编程的基础知识和关键技术,以及Access数据库的
设计、操作的主要方法。透彻研究了基于安全机制的数据传输系统的需求分析,详细的说明了井场数据远程传输系统的过程。
该系统主要包括数据加密和
压缩、数据传输、数据接收和数据存储四个部分。加密是为了数据的传输安全。压缩是为了减少传输时的负担。数据传输要通过一定的
通信协议建立
网络连接,传输过程中有状态监视。数据接收后要进行解压和解密。数据存储主要是将数据存到数据库。本文详细介绍了系统的实现技术和实现原理,同时给出了关键技术的代码和遇到的
问题及其解决方法。通过本文读者不但可以了解整个系统的开发过程,并能够直观的了解、掌握系统的功能及使用方法。
关键词:delphi;数据安全;数据传输;ACCESS
Abstract
This system can also may be borehole system providing services in all-round record well scene application and dissemination. The main body of a book to have been introduced delphi programming-based and the main method that the key technology, and
access data base design, handle. Incisive the need analysis having studied machine-made data trans
mission is systematic owing to safety , the process having explained design and realization recording well data long-range transmission system detailedly.
That system includes the data encryption and compression mainly,data transmission,data taking-over and data store four parts. The encryption is the transmission safety for the data. Compress the burden being to transfer time for the decrease. Data transmission is going to link up by the fact that certain communication agreement builds a network, transmission process middle have state surveillance. After data being received, it will carry out explain pressure and deciphering. The data memory is that a data is stored to the data base mainly. The main body of a book has been introduced detailedly systematically realizing a technology and realizing principle, code and the problem appearing having given key out a technology at the same time and their solution. The readers not only can find out about the development course of the whole system through this text, understanding, mastering systematic function and operation method that and can be ocular.
Key
words: Delphi; Data safety; Data transmission; ACCESS
前 言
我国从九十年代开始重视开发录井远程数据传输项目以来,该技术得到了快速发展。也有部分公司开发了实时井场数据传输,系统在规范上取得了很大的进步,但没有形成统一的标准,不具备开放性和通用性。所以录井现场信息实时传输技术,在单项技术上是成熟的。但在开放性、标准化、与设备无关等方面,还缺少实用性的产品。本项目将在
方案上重点考虑开放性、标准化、通用性等方面的技术,使井场信息实时传输系统不仅适用于现有的设备和需求,而且能满足将来其它录井设备和需求,使系统具有国内外先进水平。
本文第一章介绍了基于安全机制的数据传输系统的国内外发展现状及发展史以及未来发展的趋势。介绍基