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1、III论文分类号：TN学校代码：13681题目：基于单片机的口语PK系统的设计与实现学生姓名：王士虎学号：2605115系部：信工一系专业班级：电信051指导教师：杨建桥二〇〇九年六月IDesignandImplementationofOralPKBasedonSingle-chipMicrocomputerABSTRACTThisdesigntakesAT89S52asitscore.Accordingtofunctionalrequirements,weputforwardavarietyofprograms.Thedesignultimatelyadoptsaprogramo
2、fthemosteconomic,mostreliableandhighestsuccessratethroughcomparisonoftheseprograms.AsaresultofthisweproduceaHaojingCollegeexaminationsystemofPKofhighpracticalvalue.Afterthecompletionofthisdesign,itcanachievethefollowingfunctions:Studentscangetatopicthatrandomlygeneratedbythesystembypressingthe
3、titlekey,andthenitisdisplayedontheLCD.Juryteachersgivethescoresthroughthekeyinaccordancewiththeperformanceofstudents,respectively,thescoringdataisautomaticallydeliveredtotheMCUI/Oport,andAT89S52readI/Oportandputthedataintoregisterrespectively.Inaddition,judgescanalsomodifythescoresthroughthemo
4、difyingkeysonthekeyboard.Whentheconfirmingbuttonispressedthelasttime,thesystemwillimmediatelyanalysisandcomputethefinaldatastoried.Aftertherankingofstudents,theresultwillbedisplayedonthedigitaltubes.Inaddition,thesystemisalsoequippedwithatime-reminderasitsadditionalfeatures.Thedesigncanimprove
5、thecurrentsituationofexaminationofHaojingCollege.Sothattheexaminationformsinthenewenvironmentaremoreconvenient,time-savingandmoreefficient,therebyreducingtherelativetimeofstudent-teacher.Thesystemhasafunctionofautomaticallyselectingtopicsbystudents,sobetterreflectsthefairness,justnessandopenne
6、ssoftheexamination.Webelievethatwiththecompletionofthedesign,thequalityofOralPKofHaojingCollegewillrisetoanewlevel,thegrandgoalofcreationofwell-knownbrandofMassHigherEducationofHaojingCollegewillbeachievedearly,thefullimplementationofthegreatstrategyof“goingout”willbeagreatsuccess.KEYWORDS:Ora
7、lPK,AT89S52,LEC,LCD,displayI基于单片机的口语PK系统的设计与实现摘要本设计以AT89S52单片机为核心，根据功能需求，提出了多种可行性方案，并通过对这些方案的比较，最终确定了一种最经济、最可靠、成功率最高的方案。从而制作出了具有很高实用价值的镐京学院口语PK考试系统。本设计完成后，能够实现以下功能：学生通过抽题键，由系统随机产生一个题目，并将其显示在LCD上。评委老师根据各位同学的表现情况通过键盘对学生进行分别打分，打分数据自动送到单片机的
