自动售货机控制系统设计-终稿

东华理工大学长江学院毕业设计题目自动售货机控制系统设计英文题目VendingMachineControlSystemDesign学生姓名：王飞申请学位门类：工学学士学号：09315221专业：机械电子工程系别：机械与电子工程系指导教师：赵杰职称：讲师二零一三年六月I摘要随着现代社会科技和经济的飞速发展，人们已经迈进了一个高科技时代，同时人们也逐渐的学会享受生活，为了满足人们的生活追求，自动售货机开始迅速的普及。作为自动控制技术发展产物之一的PLC无人自动售货机，在人们的日常生活中已经得到了广泛的应用，已成为一种全新的商业零售形式。同时经济的快速增长使的人们的消费水平不断提高，大量的消费品被生产出来，这需要大量的物品流通渠道来消费这些生产出来的消费品，在以前主要是通过超级市场来销售，但现在自动售货机使人们多了一种选择。它的出现使消费模式和销售环境发生了巨大的变化，相对于超级市场、百货购物中心等销售模式而言，无人自动售货机没有场地上的局限，而且购物便利。本文简要介绍了课题研究的意义，自动售货机在国内外的研究动态，主要设计的是基于西门子S7-200系列PLC构成的自动售货机控制系统，包括自动售货机控制系统硬件设计，软件的设计，I/O分配，系统控制流程图，PLC梯形图程序的编写和系统梯形图的调试仿真。关键词：PLC；自动售货机控制系统；梯形图；调试IIABSTRACTWiththedevelopmentofthemoderntechnologyandsociety'srapideconomic,peoplehaveenteredaneraofhightechnology,butitalsograduallylearntoenjoylife,topursueinordertomeetpeople'slives,vendingmachinesbegantospreadrapidly.AutomaticcontroltechnologydevelopmentasoneoftheproductsofthePLCunattendedvendingmachines,inpeople'sdailylifehasbeenwidelyused,hasbecomeanewformofcommercialretail.Whilerapideconomicgrowthhasenabledthecontinuousimprovementofpeople'sconsumptionlevel,alargenumberofconsumergoodswereproduced,whichrequiresalargenumberofitemstoconsumethesedistributionchannelsproducedconsumergoods,inthepastmainlythroughsupermarketstosell,butnowvendingfreightermakepeoplemoreofachoice.Itappearsthatconsumptionpatternsandsalesenvironmenthasundergonetremendouschange,asopposedtosupermarkets,departmentstores,shoppingcenters,salesmodel,nobodynovendingmachinesonsitelimitationsandshoppingconvenience.Thisarticlebrieflydescribesthesignificanceoftheresearch,theresearchofthevendingmachineathomeandabroad,themaindesignisdesignavendingmachinescontrolsystemconsistingofPLCbasedonSiemensS7-200series,includingvendingmachinecontrolsystemhardwaredesign,softwaredesign,I/Oassignment,theflowofthesystemcontrol,writethePLCladderprogramandthedebugsimulationofthesystemladder.Keywords:PLC;vendingmachinecontrolsystem;ladder;debugging目录摘要....................................................................................................................................IABSTRACT..........................................................................................................................II绪论.......................................................................................................................................11.1课题研究的意义.....................................................................................................11.2国内外研究动态.....................................................................................................12．自动售货机控制系统的整体设计方案.......................................................................32.1自动售货机的工作原理.........................................................................................32.2自动售货机设计的基本思路.................................................................................32.3自动售货机控制系统设计的基本内容.................................................................32.3.1主要内容.......................................................................................................32.3.2拟解决的关键性问题...................................................................................32.4自动售货机控制系统设计的步骤.........................................................................43．自动售货机控制系统硬件的设计...............................................................................53.1自动售货机的控制要求分析.................................................................................53.2PLC型号的选择......................................................................................................53.2.1PLC的概念....................................................................................................53.2.2PLC的工作原理............................................................................................63.2.3PLC的循环扫描............................................................................................63.2.4PLC的硬件组成............................................................................................73.2.5PLC的编程语言............................................................................................83.2.6PLC的主要特点............................................................................................83.3感应器件的选择...................................................................................................103.4钱币的贮存和退币机构.......................................................................................103.5商品送出机构的选择...........................................................................................114．自动售货机控制系统软件的设计.............................................................................124.1PLC软件系统设计的方法....................................................................................124.2I/O口的分配..........................................................................................................124.3自动售货机I/O接口图.......................................................................................134.4自动售货机控制流程图设计...............................................................................144.5自动售货机控制梯形图程序的设计..