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ID:37382811
大小:1012.98 KB
页数:55页
时间:2019-05-22
《基于单片机的遥控智能小车设计》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、摘要多功能遥控智能小车的设计以AT89S52单片机为控制核心,利用红外线的传感器检测道路上的障碍,控制电动的小汽车自动避障,并可以实现温度远程测量和数据无线传输和分析、报警等功能。本系统包含无线遥控模块、温度测量、无线传输、避障等模块。本设计的收发模块是利用PT2262/2272和DFF的模块点动操作。单片机根据接收到的遥控信号,实现对电机的控制,从而控制小车的前进、后退、左转、右转等基本动作。温度传感器选择的是DS18B20。该传感器有较大的测温敏捷性和较为方便的数字输出,很便于后期数据分析和处理。本设计的避障部分,是采用红外传感器检测。遇到障碍物时,信号输出端从高电平变到低
2、电平。下降沿触发中断,执行相应的中断子函数,实现自动避障。无线数据传输模块选用的是NRF24L01,它是一款新型单片射频收发器件,工作于2.4GHz~2.5GHzISM频段。总之,本设计充分利用了车载的灵活方便的特性,传感器加于小车之上,以实现随时随地的监测、控制。在对探险及危险侦测的应用方面有重要意义。关键词:多功能遥控智能小车;AT89S52;温度传感器;无线数据传输;无线遥控IABSTRACTThedesignofmulti-functioncontrolintelligentcarisusingtheseriesof51single-chipmicrocomputerA
3、T89S52ascontrolcore.Itcanavoidanceobstacleautomatically,andcanrealizetemperatureremotemeasurement,datawirelesstransmissionanalysisandalarmfunctions.Thissystemcontainswirelessremotecontrolmodule,temperaturemeasurement,wirelesstransmission,obstacleavoidancemodule,etc.Thewirelessremotepartofthi
4、sdesignisusingPT2262/2272andDFtoactaspointtopoint.Accordingtotheremotesignalreceived,SCMrealizesthecontrolofthemotor,soastocontrolthecarmoveforward,backward,leftturn,rightturn,andotherbasicactions.TemperaturesensorDS18B20waschosen.Thesensorislargeragilityandmoreconvenientdigitaloutput,veryco
5、nvenienceforlaterdataanalysisandprocessing.Obstacle-avoidingpartisusinginfraredsensortodetectobstacles,andsignaloutputterminalchangesfromhighleveltolowlevel.Fallingedgeexecutestriggerdisruptiontorealizetheobstacleavoidancebyexecutesonfunction.ThisdesignofwirelessdatatransmissionmoduleisNRF24
6、L01whichisasinglepieceofRFtransceiverdevices,workingin2.4~2.5GHzinISMband.Inshort,thisdesignmakesfulluseofthecharacteristicsofthecarwhichisflexibleandconvenientforaddthesensoronthecartomonitorandcontrolanytimeandanywhere.Inthedangerousexplorationanddetectapplications,ithavetheimportantmeanin
7、g.Keywords:multi-functionremoteintelligentcar;AT89S52devices;Temperaturesensors;Wirelessdatatransmission;WirelessremotecontrolII目录摘要....................................................................................................................
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