产品试验台计算机测控系统的研究与设计-计算机应用技术专业论文.docx

贵州大学硕士学位论文 贵州大学硕士学位论文 I I 摘 要 产品试验台计算机测控系统在制造业中得到越来越广泛的使用，由于具体的 产品试验台计算机测控系统的应用有很强的针对性，因此研究这类系统的提高软 件可重用性的方法是一个很有意义的课题。 本文对产品试验台计算机测控系统的硬件体系结构进行了分类，描述了系统 用例，并根据实时性分析，划分了不同的系统实时行为。 在分析的基础上，给出一个支持实时数据交换的 3 层体系结构并使用这个结 构描述计算机测控系统的软件体系结构。通过对测控系统的软件对象进行划分， 发现了系统的最小实现情况，这个最小实现是整个系统的核心部分。 将设计模式用于有实时特征的系统开发，设计了具有一定可重用性的软件结 构，这个结构可以全部或部分用于具体系统的开发。在设计过程中，重点提出了 基本测控过程的核心机制和一个用于自动测控过程的描述规则和解释机制，讨论 了一种易于工程实现的故障模式建模方法。出于代码重用的考虑，进一步分析和 设计系统中稳定的小粒度的通用类，并基于 ActiveX 编程将这些设计实现成为组 件包。这个组件包包含了最小实现需要的软件制品，因此可以用于具体系统的快 速开发。 本文给出的设计和组件在实际产品试验台计算机测控系统的开发过程中得 到成功应用，不仅缩短了系统开发周期，而且提高了系统的可靠性和可维护性。 关键词：试验台 测控系统 设计模式 ActiveX 编程 II II Abstract Computer Measurement and Control System of Product Test Stand (CMCSPTS) has been increasingly used in manufacturing. Because a concrete CMCSPTS is narrowly targeted to a specific application, the study of the method to improve software reusability of such systems is a very meaningful subject. The thesis firstly classifies hardware architectures being used in CMCSPTS, and describes system use case. In terms of analysis of the real-time character, the thesis discriminates different real-time behaviors of the system. Based on the first step for analysis, the thesis redefines a 3-tiers architecture that can support real-time data exchanging object, that therefore be used to describe the software architecture for CMCSPTS. By discriminating software objects in CMCSPTS, the proportion in the architecture that can be realized to a minimal system for product test stand is found. The proportion is a core of entire system. Using design patterns to develop the system that has real-time character gained a software structure with certain reusability. The structure or portions of it can be used in a software development for a concrete system. In the designing process, the fairly important achievement is working out an essential mechanism of elementary process and a set of programming rules and explanation rules that be used in auto-test procedure, and discussing a