本科毕业论文基于西门子plc的地铁排水控制系统设计cd6vu.doc

摘 要随着城市的发展，城市交通变得越来越拥挤，人们正在寻找另外方便的交通工具，而地铁的出现正恰到好处的解决了该问题，地铁的方便快捷，正成为如今最受欢迎的交通工具，因此，研究地铁系统排水系统的收集和排放，具有十分重要的理论意义和实际应用意义。本文首先介绍了地铁的研究背景和发展现状，然后提出总体设计方案，通过对总体方案的分析，确定水池的数目和电动机的数量，进一步确定系统的硬件与软件组成，确定硬件的信号和应该使用的软件，绘制CAD和流程图来展现系统的主要工作方式，通过PLC程序进行编程控制，利用传感器的水位检测来达到排水目的，最后再对设计的系统提出改进和建议。关键词：排水 自动控制 PLC 顺序控制 ABSTRACTWith the development of cities, the traffic is becoming increasingly crowded, people are looking for another convenient means of transport, the emergence of the subway are just the right solution to the problem, subway convenient, is becoming the most popular means of transport today Therefore, the collection and emissions Research subway system drainage systems, has very important theoretical and practical significance.This paper describes the background research and development status of the subway, then made the overall design scheme, through the analysis of the overall program to determine the number and the number of the motor pool, to further determine the hardware and software system components, determine the hardware signals and should be used software, CAD drawing and flowcharts to show the systems main work, carried out by the PLC programming control, using sensors to detect water level to achieve the purpose of drainage, and finally suggest improvements and recommendations for the design of the system.Keywords: Drainage; automatic control; PLC; sequence control目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc7147 摘 要 PAGEREF _Toc7147 I HYPERLINK \l _Toc14533 ABSTRACT PAGEREF _Toc14533 II HYPERLINK \l _Toc28983 1 绪论 PAGEREF _Toc28983 1 HYPERLINK \l _Toc15570 1.1 研究背景 PAGEREF _Toc15570 1 HYPERLINK \l _Toc21855 1.2 研究意义 PAGEREF _Toc21855 1 HYPERLINK \l _Toc19213 1.3 国内研究现状 PAGEREF _Toc19213 1 HYPERLINK \l _Toc22446 1.4 地铁排水设计方法 PAGEREF _Toc22446 2 HYPERLINK \l _Toc9661 2 排水系统总体方案设计 PAGEREF _Toc9661 3 HYPERLINK \l _Toc26861 2.1 地铁水的来源及排放方式 PAGEREF _Toc26861 3 HYPERLINK \l _Toc15284 2.2 排水系统实现的功能 PAGEREF _Toc15284 3 HYPERLINK \l _Toc16656 2.3 系统控制