毕业论文（设计）基于安全机制的数据传输系统设计与实现.docVIP

摘 要 数据库 　　本文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 transmission 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。介绍基于安全机制的数据传输系统开发工具Delphi和Access。为后面的讨论提供了背景和基础。第二章从数据和功能两个方面对录井数据远程传输系统做出需求分析。第三章和第四章是本文的核心部分。这两章从系统设计和系统实现两方面，讨论本系统开发的基本要点。第三章对系统的总体设计做了详细的描述，包括数据库、软件结构、安全性等方面的设计。第四章全面和细致的介绍了系统开发的