温度数据采集与无线传输硬件系统设计Thedesignofhardwaresystemoftemperaturedataacquisitionandwirelesstransmission摘要采用单片机为核心利用多个DS18B20温度传感器，液晶显示器1602，基于nRF905的无线收发电路完成了对温度数据的采集，显示，和传输。首先介绍了温度数据采集和无线传输的背景和发展现状。并对系统进行了设计，主要包括各个部分电路的设计，各个芯片的选择介绍，简单的软件设计，并制成目标板。根据系统的特点，将系统分为采集发送端和接受端。系统设计完成后在实验室进行了调试和测试。测试结果表明：系统硬件设计完全符合温度数据采集和无线传输的要求，可以投入使用。关键词温度数据采集无线传输LCD显示单片机AbstractMCUistakenasthecore,usingmultipleDS18B20temperaturesensor,liquidcrystaldisplay1602,awirelesstransceivercircuitbasedonnRF905completedtheacquisitionoftemperaturedata,display,andtransmission.Firstly,introducingthebackgroundandcurrentdevelopingconditionofthetemperaturedataacquisitionandwirelesstransmission.Anddesigningthesystem,including:thecircuitdesignofeverypart,selectionandintroductionofchips,asimplesoftwaredesign,andcompletingofthetargetboard.Accordingtothecharacteristicsofthesystem,thesystemisdividedintocollectingandsendingendandreceivingend.Afterfinishingthedesignofthesystem,Idebuggedandtestedit.Theresultofthetestdemonstratedthatthedesignofthehardwaresystemfullyagreedwiththerequirementsoftemperaturedataacquisitionandwirelesstransmissionandcouldbeputintousing.KeywordstemperaturewirelesstransmissionLCDdisplay目录第一章绪论.............................................................................................................11.1无线温度采集的意义.......................................................................................................11.2无线通信技术的发展现状...............................................................................................11.3温度测量技术的发展现况...............................................................................................31.4本文的主要研究工作.......................................................................................................4第二章无线数据采集系统的硬件设计.................................................................62.1系统的总体设计及结构组成............................................................................................62.2主要芯片的选择...............................................................................................................72.2.1微处理器芯片的选择.............................................................................................72.2.2无线射频芯片的选择.............................................................................................82.2.3温度传感器的选择.................................................................................................92.3系统电源电路和单片机最小系统.................................................................................102.3.1电源电路设计.......................................................................................................102.3.2单片机最小系统....................................................................................................112.4温度数据采集..................................................................................................................112.4.1温度数据采集电路.............................................................................................
