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毕业设计（论文）题目：PLC自动门控制系统的设计姓名：专业：学院：学习形式：助学单位：指导教师：2011年8月辽宁石油化工大学继续教育学院II毕业设计（论文）说明书题目：PLC自动门控制系统的设计院别：专业：班级：设计人：指导教师：、辽宁石油化工大学继续教育学院III毕业设计（论文）任务书姓名唐琨准考证号自考班级设计（论文）题目题目：plc自动门控制系统的设计基础数据：毕业设计（论文）的主要内容1、说明部分：2、计算部分：；3、绘图部分：任务下达日期2010年??月??日指导教师签字????辽宁石油化工大学继续教育学院IV要求完成日期2010年??月??日评阅（审）人意见评阅人签字：年月日专业指导委员会意见负责人签字：年月日备注辽宁石油化工大学继续教育学院1PLC自动门控制系统摘要自动门在人们的日常生活中已经得到了广泛的应用，同时人们对其性能和安全等方面的要求也越来越高。由于PLC的高稳定性和对环境较强的适应能力，使得PLC在自动门控制装置中的应用也日益广泛。本文围绕自动门控制系统展开研究。首先分析了国内外自动门发展的趋势和所采用的技术，然后对PLC系统作了简要说明。并按照自动门控制装置的要求，设计了相应的梯形图文件，实现了自动门由检测到开启、计时等待、关闭的全过程。本设计主要的工作原理是通过信号采集装置判定有无人经过并将信号转换成开关量信号传到PLC，PLC根据开关信号来控制变频器的开停和速度的变换，在由传动装置带动门运动随着PLC不断的更新，PLC控制已成为自动控制中最常见的方式之一，由于可编程控制器可以很简单的改变控制方式。并且，PLC具有较高的稳定性、可靠性、维修方便等优点。还具有良好的处理自动门开关控制及良好的稳定性，因此，此设计以PLC为基础，以传感器为感应装置，电动机为动力单元，从而达到设计的要求。关键词：PLC可编程控制器自动门传感器设计原理工作原理辽宁石油化工大学继续教育学院2PLCautomaticdoorcontrolsystemAbstractAutomaticdoorshavebeenwidelyusedinthepeople'sdailylives,whileaboutitsperformance,andsecurityrequirementsandgettinghigher.DuetothehighstabilityofthePLCandstrongabilitytoadapttotheenvironment,makestheapplicationofPLCinauto-doorcontrolunitisalsoincreasinglywidespread.Thispaperstressesthestudyonauto-doorcontrolsystem.Developmenttrendofthefirstanalysisoftheautomaticdoorsathomeandabroadandthetechnologiesused,andthenprovidedabriefdescriptionofthePLCsystem.Andinaccordancewiththerequirementsofautomaticdoorcontroldevice,wasdesignedforladderdiagramfiles,enablingautomaticdooropening,detectedbytimedwait,shutdownthewholeprocess.Thisdesignworksmainlythroughthesignalacquisitiondevicejudgmentafterandconvertsthesignalswitchesquantitysignal,nouploadPLC,PLCtheswitchingsignaltocontrolthestartstopandspeedofthetransformationofafrequencyconverter,drivenbygeardoormovement.WiththecontinuousupdateofPLC,PLCautomaticcontrolofcontrolhasbecomeoneofthemostcommonway,becausechangingthecontrolmodeoftheprogrammablecontrollercanbeassimple.AndPLChasahighstability,reliability,easymaintenanceandsoon.Automaticdoorcontrolalsohasagooddealandgoodstability,therefore,thisdesignbasedonthePLC,sensorstosensors,motor-poweredunits,soastomeetthedesignrequirementsKeywords:PLCprogrammablecontrollerAutomaticdoorThesensorTheprincipleofdesignTheWorkingprinciple辽宁石油化工大学继续教育学院3目录PLC自动门控制系统···················································································1摘要·······································································································1Abstract···············································································································2前言···················································································································5第一章自动门的概述····························································································61.1自动门简介······························································································61.2自动门的国内外发展现状············································································61.3本课题研究的内容······················································································71.3.1自动门类型的选择·············································································71.3.2自动门硬件系统的设计······································································71.3.3自动门的软件设计············································································81.4本课题研究的背景和意义·············································································8第二章PLC的概述·······························································································102.1PLC的定义······························································································102.2PLC的产生背景························································································102.3PLC控制系统简介·····················································································122.4PLC的基本结构及原理···············································································122.5PLC的特点······························································································122.6PLC的选型原则······················································································13第三章自动门控制系统的整体方案········································································153.1设计流程·································································································153.2自动门的功能需求分析···············································································153.3自动门的控制要求·····················································································153.4自动门技术参数························································································163.5自动门具体构成························································································16第四章硬件设计································································································184.1可编程控制器的选型···············································································184.2驱动装置的选型························································································184.3感应器件的选型·············