外界环境实时检测及无线传输系统设计作者：吴绪敏（陕西理工学院物理与电信工程学院通信1204班，陕西汉中723000）指导老师：李翠华[摘要]：外界环境主要包括温度、湿度、光照强度和灰尘浓度等，这些因素都会影响人们的生活，实时了解外界环境很有必要。本文主要采用主控芯片AT89S52对温湿度传感器DHT11，光敏电阻以及PM2.5传感器GP2Y1010AU的控制，实现对外界环境的检测，数模转换器采用的是ADC0832，然后通过NRF24L01的无线模块对采集的数据进行无线传输，最后显示在1602LCD屏上。该设计能够实现温度、湿度光照强度的实时检测，液晶屏上能准确显示出当前的数据。[关键字]：AT89S52，DHT11，光敏电阻，GP2Y1010AURealtimeDetectionandWirelessTransmissionSystemDesignAuthor:WuXumin(Grade2012,Class4,MajorofCommunicationEngineering,SchoolofPhysicsandTelecommunicationEngineeringofShaanxiUniversityofTechnology,Hanzhong723003,Shaanxi)Tutor:LiCuihuaAbstract:Theexternalenvironmentmainlyincludestemperature,humidity,lightintensityanddustconcentration,etc.Thesefactorswillaffectpeople'slives，itisverynecessarytounderstandthereal-timeoftheexternalenvironment.ThistextmainlyusesthechipAT89S52tocontrolthesechips,suchasthetemperatureandhumiditysensorDHT11,thephotosensitiveresistanceaswellasthePM2.5sensorGP2Y1010AU,toachievethedetectionoftheexternalenvironment.DigitaltoanalogconverterusingADC0832,AndthenthroughtheNRF24L01wirelessmoduletocollectthedataforwirelesstransmission,andfinallydisplayedonthe1602LCDscreen.Thedesigncanrealizethereal-timedetectionoftemperatureandhumiditylightintensity,andthecurrentdatacanbedisplayedontheLCDscreen.Keywords:AT89S52,DHT11,Photosensitiveresistance,GP2Y1010AU目录1绪论.................................................12方案论证...........................................22.1显示电路方案....................................22.2无线传输方案....................................22.3系统总体方案设计..............................23硬件电路设计......................................43.1控制部分..........................................43.2模数转换部分.....................................63.3信息采集部分....................................73.3.1温湿度采集..................................73.2.2光照强度采集...............................83.2.3灰尘浓度采集...............................83.3无线传输部分....................................93.4显示电路部分..................................104软件设计..........................................124.1软件的总体设计...............................124.1.1无线发送模块..............................124.1.2无线接收模块..............................134.2软件的分步设计...............................144.2.1温湿度检测软件设计.....................144.2.2无线发送模块软件设计..................154.2.3无线接收模块软件设计................154.31602显示部分....................................164.4ADC模数转换部分...............................165系统调试..........................................196总结...............................................20致谢..................................................21参考文献.............................................22附录A..................................................23附录B..................................................32附录C..................................................33附录D..................................................411绪论数字温度传感器（温度传感器）是在20世界90年代中期出现的。它是由微电子技术、计算机技术和自动测试技术（ATE）组成的芯片...
