模块化生产线毕业论文的摘要

随着全球经济的发展和现代工业的日新月异，人们对工业生产设备的自动化水平、对自动化产品的综合功能及可靠性、对新产品的上市速度、对根据客户和市场要求修改配方的灵活性均提出了更高的要求。在这样的大环境下，批量(Batch)控制管理软件作为一个十分重要的产品，在越来越多的工业控制过程(尤其是精细化工、制药和食品行业)中得到了广泛的应用。本文以Invensys集团旗下的美国Foxboro公司的I/ABatch软件在国内某一精细化工厂的生产装置上的应用为例，介绍了该控制管理软件的全貌及其应用要点。纵观Foxboro的I/ABatch发展历史，可以追溯到1969年首个冗余批量控制器的发布。早在上世纪90年代前，伴随着不同的DCS系统发展阶段，Foxboro的批量控制软件也分别经历了LargeScaleBatch、EasyBatch、BatchPlantManager、R-Batch4个不同时期。一直到1992年，基于Unix平台并和I/A系统集成在一起的Foxbatch才诞生，被称为核心。1996年开始，著名的工业软件公司Wonderware开始为Foxbatch编写具有更友好客户界面的批量软件。该软件基于WindowsNT平台，可以和工厂管理软件集成在一起使用，亦可以同时被Foxboro公司I/A系统外的其他控制系统使用。1998年，Foxbatch正式更名为I/ABatch，之后分别经历了、等，直到现在被广泛运用于WindowsXP平台上的I/。I/ABatch是一套具有很大灵活性的批量生产管理软件，是针对生产过程中的建模和实现批量生产的自动化控制而设计的，完全符合标准，具有模块化的特点。用I/ABatch软件，用户可以很方便地1引言2I/ABatch的发展回顾及主要特点创建配方，用批量离线组态环境模拟新配方的运行过程，查询到有关产品的历史数据，并得到一些产品物料汇总信息。可以说它是一个“成品化”的批量控制引擎，如果和I/ADCS系统联合使用，还有参数自动连接生成、便于组态集成等特点。3精细化工装置的工艺流程及控制要求I/ABatch具有十分广阔的应用范围，小到一个最简单的加料混合过程，大到十几条批量生产线几十个反应釜的生产过程，均可以用这套软件来组态实现。以某精细化工装置为例，共有两条生产线并行生产两种相关联的化工产品A和B。由于该化工产品具有很强的季节性，在连续生产两三个月后要清洗设备，重新更换原料(包括调整原料比)，生产另两种相关产品C和D。其中前两者的基本工艺过程是一致的。整套装置有两个进料贮槽、两个反应釜、两个成品槽，有模拟量输入100点、模拟量输出50点、数字量输入200点、数字量输出250点。从同时投入生产的两条生产线来看，在A线进入到该线反应釜初始阶段前，必须检查B线是否已经正常完成KOH的进料，并且反应釜内的压力、温度达到了工艺工程师预定的值。每条生产线的每一生产步骤中都有很严格的反应条件检测，一旦有连锁发生，工艺会要求控制程序根据不同的连锁原因转入到不同的子步骤中去，直到连锁条件完全解除，继续该条生

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The study describes the total course for web shopping. It introduces the develop vironment and tools. It also describes the detail of design idea and design course. After it, for the database create idea and the relationship of them are described. The study tell us how to carry out the function with block picture those clearly show us the design idea, program disign and detail on actual requirement, web shopping system designed with block. In the OS of Windows XP, is set up. The program language is JAVA which can realize dynamic and alternating function with WEB function mainly include goods show, goods buying in interface and goods manage, members manage,class manage, order form manage and so system have below function: At first, the alternating between members and administrator. After it, the manage functions are micromesh especially for class management which make it useful for buniness and fit with electric shopping system develop requiment.

This article elaborated on-line shopping system's whole performance history emphatically. Introduced system's development environment as well as the development kit, have also made the comprehensive narration regarding the design concept and the design cycle, in database foundation between thought as well as each data sheet's aspects and so on concrete connection has also made the detailed explanation, and analyzed system each function to realize the process as well as the detailed design process specifically, during plan simple system function module chart's, made every effort to indicate clearly the design concept as well as and realized specifically to the entire programming's plan. acts according to the physical demand, on-line shopping system this project uses modular the design concept, in Windows under the XP operating system environment, builds JSP movement environment Tomcat , through uses the JAVA script language to complete dynamic, alternately

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