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1、闽西职业技术学院毕业设计(论文)帆板控制系统姓名:张潍中系别:电气工程系年级:09专业:电子信息工程指导老师:31帆板控制系统【摘要】本设计采用STC89C52RC为中心控制器,利用角度传感器来的采集、处理实现对风扇转速的控制,调节风力大小,进而改变帆板转角大小;帆板的角度检测,通过ADXL345模块,实现控制帆板角度的大小;通过充分比较、论证,最终选用小型直流电机作为风扇的制动源,小型直流电机力矩大、操作简单、价格低且能满足设计需求;系统显示采用LCD12864液晶,用于实时显示帆板的角度大小;控制电机是以NPN三极管B
2、U406为驱动,再利用PWM算法算出合理的脉冲占空比;最后经过多次测试表明,系统完全达到了设计要求,不但完成了所有基本和发挥部分的要求,并增加实现了实时显示占空比全程变化的功能。【关键词】自动控制、帆板、角度测量、小型直流电机、液晶显示、脉宽调制PanelControlSystem【Abstrct】Accordingtothepanelcontrolsystemdesignrequirements,todesignthewholesystemwasstudied,establishedtheoptimaldesignsch
3、eme,usingSTC89C52RCasthecentercontroller,usingtheanglesensortotheacquisition,processingofthefanspeedcontrol.Thepoweradjustment,andthenchangethewindsurferwindsurfingangle;angledetection.ThroughtheADXL345modulerealizationofcontrolpanel,intermsofsize;bycomparison,the
4、finalselectionoffullproof,smallDCmotorasthebrakingsourcefan,smallDCmotortorque,simpleoperation,lowpriceandcansatisfythedesignrequirement;displaysystemusingLCD12864,usedforreal-timedisplaypanelangle;controlmotorisNPNthree.BU406drive,thentheuseofPWMalgorithmcalculat
5、esthereasonablepulsedutyratio;finallyaftermanytestsshowthat.Thesystemmeetsthedesignrequirements,notonlyfinishedallthebasicandtherequirementstoplayapart,andtoincreasethereal-timedisplayofthewholefunctionofthevariationofdutyratio.【Keywords】AutomaticControl,Windsurfi
6、ng,AngleMeasurement,SmallDCMotor,LiquidCrystalDisplay,PulseWidthModulation31目录一、系统方案................................................................................................................21、方案论证与选择..........................................................
7、........................................21.1电源模块的论证与选择..................................................................................21.2电机模块的论证与选择..................................................................................21.3控制系统的论证与选择..................
8、...............................................................21.4角度检测模块论证与选择..........................................................................