基于SPC的质量数据自动采集与分析系统开发与研究-管理科学与工程专业论文.docxVIP

摘 要 进入二十一世纪，全球化竞争日益激烈，这迫使企业将竞争的焦点向产品质 量上转移，因此，如何应用科学的统计技术提升我国企业的质量管理水平已经成 为当务之急。统计过程控制（SPC）是一种借助数理统计方法的先进质量管理和控 制技术，以过程的稳定性为主要目标，强调全过程的预防，能够有效地降低产品 的不合格率，从而降低生产成本。 本文针对当前我国应用 SPC 技术起步晚，理论与现实严重脱节等问题，研制 开发了 SPC 应用软件系统，实现了用户管理、数据采集、绘制直方图、绘制控制 图、控制图自动判异及过程能力分析等功能。具体工作如下： ① 研究了 SPC 的发展历程、发展现状，分析了 SPC 应用软件的发展方向， 介绍了 SPC 的常用技术工具以及在实际生产中的应用实施流程，阐述了本文的主 要内容和研究意义。 ② 通过对系统功能需求、性能需求及运行需求的分析，提出了系统总体目标, 在构建系统框架的基础上，对系统进行了功能结构、业务流程、数据流程以及 E-R 模型的设计。 ③ 详细分析了数据采集、控制图生成、控制图智能显示与平移、控制图自动 判异以及过程能力分析的设计过程及其关键技术。 ④ 引用具体实例对系统的运行进行了说明，验证了其功能。 关键词：统计过程控制，控制图，自动采集，自动判异 ABSTRACT Into the 21st century, with growing global competition, forcing companies to shift the focus of competition to the product quality up, so the application of statistical techniques to enhance the scientific quality management of our enterprises has become a top priority. Statistical process control(SPC)is an advanced technology of quality management and control based on mathematical statistics, It mainly aims at process stability, concerns prevention of whole process. SPC is able to reduce wasters effectively, cut cost of production consequently. This view of the current application of SPC techniques in China started late, a serious gap between theory and reality problems, SPC applications developed software system, realizes user management, data acquisition, drawing histograms, drawing control charts, control charts and process capability of automatic classification of different analysis and other functions. Specific tasks are as follows: ① Some research is done on development course and development status of SPC, analysis of the development direction of SPC application software system, describes the often-used technical tools of SPC and its application in the actual production of the implementation process, then content and meaning of the subject is expounded. ② Through the system functional requirements, performance requirements and operational requirement of the analysis, the overall goal of the system is presente