梧州学院毕业论文论文题目基于GSM短消息的LED点阵广告屏设计系别电子信息工程系专业电子科学与技术班级08电科1班学号200800610101学生姓名黄桂才指导教师（签名）完成时间2011年12月摘要本文介绍了一种基于GSM通信模块及STC89C52单片机设计的LED广告屏的设计过程。该设计是由单片机主控芯片STC89C52、TC35i-GSM模块、8×8LED点阵GT21L16S2Y字库芯片、AMS1117、8位移位锁存器74HC595、4-16位译码器74HC154等单元电路组成。该设计的主要工作原理是通过GSM模块接收短信息，经单片机进行解码，最终显示到LED点阵屏上。研究表明该设计使用广泛、方便、安全、实用，具有可靠性高、使用寿命长、性能价格比高、使用成本低、环境适应能力强等特点，广泛应用于金融市场、医院、体育场馆、机场、码头、车站、高速公路等公共场所的信息显示和广告宣传。关键词：STC89C52；LED点阵屏；GSM模块；GT21L16S2YIBasedonGSMshortmessageLEDadvertisingscreenAbstractThispassageintroducesadesign,ItdesignedfromSTC89S52microcontrollerLEDadvertisingscreenbaseonGSMdesign.ThedesignismadeupofthemastermicrocontrollerchipSTC89C52,TC35i-GSMmodularizedcircuit,8x8LEDlattice,GT21L16S2Ywordstockchip,AMS1117,eightbitshiftlatch74HC595,4-16codetranslator74HC154.Thisdesign’sprincipleofworkisreceiveshortmessagethroughtheGSM,recodingthecodebyMCU,andfinaldisplaytotheLEDlatticescreen.Researchshowsthatthisdesigniswidelyused,convenient,safe,practical.Ithashighreliability,longservicelife,highcostperformance,theuseoflowcost,strongabilitytoadapttheenvironmentetc,Widelyusedinthefinancialmarket,hospitals,sportsvenues,airports,docks,stations,theexpresswayandotherpublicinformationdisplayandadvertising.Keyword:MCU(MicroControllerUnit)；STC89C52；LEDlattice；GSM；GT21L16S2YII第一章引言....................................................................................................................................11.1课题背景与来源.....................................................................................................................11.2课题意义................................................................................................................................11.3课题设计内容和方案.............................................................................................................2第二章系统概述................................................................................................................................22.1系统组成................................................................................................................................22.2系统的功能介绍及操作说明.................................................................................................3第三章硬件组成与设计....................................................................................................................43.1整体电路图.............................................................................................................................43.2电源电路................................................................................................................................53.2.1单片机电源..................................................................................................................53.2.2LED点阵屏电源.........................................................................................................63.2.3字库芯片电源..............................................................................................................
