基于51单片机的无线测温系统的设计

大连海事大学毕业论文二○一四年六月┊┊┊┊┊┊┊装┊┊┊┊┊┊┊订┊┊┊┊┊┊┊线┊┊┊┊┊┊┊基于51单片机的无线测温系统的设计专业班级：通信工程1班姓名：杜嘉麟指导教师：李作洲信息科学技术学院I摘要温度是日常生活中必不可少的重要参数。在日常生活中有许多时候我们都离不开温度的测量。简单的温度计已经不能满足一些特定情况下的温度测量，尤其在某一些环境恶劣的工业场所和户外场所，在这种情况下再使用传统温度计测量温度是不切实际的。所以无线测温系统的开发与设计便显得异常重要。当下一些无线温度测量系统已得到开发和设计，但因其高昂的成本导致其还没有普及到日常生活当中。在实际测温过程中既要保证系统的准确性、稳定性、实时性又需要保证产品的低功耗，操作简单。因此设计一种低功耗，小成本，易使用的无线测温系统就显得很有意义。本次设计利用STC89C52型号的单片机控制DS18B20型号的温度传感器来实现无线测温系统的设计。通过简单的无线通信协议，实现高可靠性与低功耗，小成本的无线测温系统的设计。本次设计能实现对温度的远程检测。小成本、低功耗、即时性的无线测温系统是本次设计的最大特点。本次设计的无线传输模块采用的型号是NRF24L01。该系统结构简单，性能可靠，功耗较低，成本低廉，提供了一种新型的无线传感器的解决方案。关键词：51单片机；无线测温；无线传输模块基于51单片机的无线测温系统的设计IIAbstractTemperatureistheessentialparameterindailylife,whichisoftentoneedmeasure.Thetraditionalthermometercannotmeetthetemperaturemeasurementofthespecificcircumstances,especiallyinsomeoftheharshindustrialspaceandoutdoorspace,wherethemeasurementisunrealistic.Sothedevelopmentanddesignofwirelesstemperaturemeasuringsystemisveryimportant.Manywirelesstemperaturemeasurementsystemshavebeendevelopedsofar,however,highcoststopsthesystemswildlyappliedinourdailylife.Intheactualmeasurementprocessitisnecessarytoensurethestabilityofthesystem,thereal-timeandthelowpowerconsumption.Sothedesignofalowpowerandlowcostwirelesstemperaturemeasuringsystemisofgreatsignificance.Sometemperaturesensors,modelDS18B20,arecontrolledbySCM,typeSTC89C52.Thesedevicesconstitutethemeasurementandcontrolsystem.Usingsimplewirelesscommunicationprotocol,ahighreliability,lowpowerconsumptionandlowcostsystemisdesigned,whichcanrealizeremotedetectionoftemperature.Lowcost,lowpowerconsumption,real-timeandremotecontrolarefocusesofthisdesign.ThewirelesstransmissionmoduleusedinthissystemisNRF24L01.Thissystemhasadvantagesofsimplestructure,reliableperformance,lowpowerconsumptionandlowcost,providinganovelscheme,namelyusingwirelesssensors.Keywords:MCS-51r,wirelesstemperaturemeasurement,Wirelesstransmissionmodule基于51单片机的无线测温系统的设计III目录第1章绪论..............................................................................................................11.1论文研究主要内容............................................................................................11.2国内外现状........................................................................................................3第2章关键技术介绍..................................................................................................52.1单片机最小系统介绍........................................................................................52.2无线收发模块....................................................................................................52.3数码管显示电路................................................................................................52.4电源模块电路....................................................................................................6第3章系统分析..........................................................................................................73.1构架概述............................................................................................................73.1.1功能构架..................................................................................................73.1.2模块需求描述..........................................................................................73.2系统开发环境....................................................................................................83.3系统任务的可行性分析....................................................................................83.3.1技术可行性..............................................................................................83.3.2系统安全性分析......................................................................................9第4章系统设计........................................................................................................104.1构架概述..........................................................................................................104.2系统的功能结构设计......................................................................................10第5章系统实现........................................................................................................125.1软件实现..........................................................................................................125.1.1主函数模块功能介绍............................................................................125.1.2发送程序功能介绍................................................................................125.1.3接收程序功能介绍................................................................................125.1.4函数实现................................................................................................135.2硬件实现..........................................................................................................165.2.1单片机接口及功能介绍........................................................................165.2.2晶振电路设计........................................................................................165.2.4报警电路设计........................................................................................175.2.5温度检测电路设计..........................