大型动感霓虹灯设计论文.doc

本科毕业论文（设计）论文题目：大型动感霓虹灯设计学生姓名：所在院系：机电学院所学专业：应用电子技术教育导师姓名：完成时间：摘要该动感霓虹灯设计是基于8031单片机、串口联级新型的共阴极驱动芯片MAX7219霓虹灯扫描控制器，采用环保节能LED及LED灯组以实现个性化的动态显示效果。该设计的动感霓虹灯，整体上可以分为电源模块、显示模块和控制模块三个部分。电源模块采用变压器、桥式整流滤波电路和7805稳压芯片构成，为CPU、EPROM及MAX7219等弱电电路供电。显示模块采用LED及LED灯组，灯线采用独立LED有序排列形成，灯字则采用LED灯组来实现，并用MAX7219来实现恒流驱动，整体效果动感十足，醒目形象。控制模块包括单片机8031、程序存储器EPROM2732、地址锁存器74LS373、地址锁存器74LS138等，完成向显示驱动模块输送扫描花样信号的任务。设计采用新型扫描控制器及MAX7219驱动，具有较高的通用性及很大的实用价值，显示则采用LED实现动感效果，节能环保，经济实用。整体设计成本低廉，实用性强，节能环保，有较高的通用性。关键词：LED，动感霓虹灯，单片机，扫描控制，软件设计TheDesignofLarge-scaleDynamicNeonAbstractThisdesignofdynamicNeonlightisbasedon8031SingleChipMicyoco,theserialportassociationlevelnewcommoncathodedrivestomovethechip-MAX7219neonlightscanningcontroller,usesLEDandtheLEDlampbankrealizesthepersonalizeddynamicdemonstrationeffect.Thisarticleintroducedthedesignofdynamicneonlight,divideintothepowersourcemodule,thedemonstrationmoduleandthecontrolmoduleroughly.Thepowersourcemoduleusesthetransformer,thebridgetyperectificationfiltercircuitand7805constantvoltagechipconstitution,isCPU,EPROMandMAX7219andsoontheweakelectricityelectriccircuitpowersupply.ThedemonstrationmoduleusesLEDandtheLEDlampbank,thelampwireusestheindependentLEDorderarrangementformation,thelampcharacterusestheLEDlampbanktorealize,andrealizestheconstantflowactuationwithMAX7219,theoveralleffectprojectisfull,strikingimage.Thecontrolmoduleincludingthemonolithicintegratedcircuit8031,programmemoryEPROM2732,addresslatch74LS373,addresslatch74LS138andsoon,completestothedemonstrationactuationmoduletransportationscanningpatternsignalduty.ThedesignusesthenewscanningcontrollerandtheMAX7219actuation,hasthehighversatilityandtheverygreatpracticalvalue,demonstratedusestheLEDtorealizedynamiceffect,theeconomyispractical.Theoveralldesigncostisinexpensive,usable,theenergyconservationenvironmentalprotection,hasthehighversatility.Keywords：LED,DynamicNeon,SingleChipMicyoco,ScanContronl,SoftwareDesign目录1绪论.12系统方案设计.12.1系统方框图.22.2动感效果图.23系统原理概述及仿真.33.1电源模块.33.2显示模块.43.2.1发光二极管的工作特性.53.2.2发光二极管的工作原理.53.2.3发光二极管的驱动电路.73.2.4PWM(脉宽调制)调光技术.83.3控制模块.93.3.1单片机8031最小化系统.93.3.2程序存储器EPROM2732.113.3.3功率输出板.134软件程序设计.144.1主程序流程图.144.2程序编制.164.2.1顺序扫描程序.164.2.2PWM调光程序.175结束语.17致谢.18参考文献.19附录1驱动电路.20附录2显示程序.21