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毕业设计说明书基于DSP的远程温度监测系统设计专业自动化学生姓名蔡伟班级B自动化074学号0710603401指导教师冯俊青完成日期2011年5月25日盐城工学院本科生毕业说明书(2011)基于DSP的远程温度监测系统设计摘要TMS320F2812数字信号处理器是TI公司最新推出的32位定点DSP控制器，是目前控制领域最现金的处理器之一。其频率高达150MHz，大大提高了控制系统的控制精度和芯片处理能力。TMS320F2812基于C/C++高效32位TMS320C28x的DSP内核，并提供浮点数学函数库，从而可以在定点处理器上方便的实现浮点运算。在高精度伺服控制、可变频电源、UPS电源等领域广泛运用，同时是电机等数字化控制产品升级的最佳选择。本文介绍了一种基于DSP处理器的温度监测系统设计方案。该监测系统是以TMS320F2812芯片为核心，在硬件设计的基础上，借助Protel软件开发系统完成了系统的软件设计，在PC机上采用温度监控软件，通过串口通信实时监测系统的温度，充分利用了DSP2812的强大运算能力，用DSP进行FFT运算，实现了跟踪测量输入信号的频率。根据实际频率计算采样周期的算法，在不增加硬件投资的条件下解决了同步采样的问题。这种软件锁相的改进方法，实现简便，实时性较高，计算工作量小。实验结果表明该监测和传输系统的硬件结构简单，测量精度高，具有较高的智能化程度，能够实现远距监测。实践结果表明，该系统使用效果良好，有着广泛的应用前景。关键词：温度传感器；串行通信；远程控制；DSP盐城工学院本科生毕业说明书(2011)BasedonDSPremotetemperaturemonitoringsystemdesignAbstractTMS320F2812digitalsignalprocessorisTIcompanylatest32-bitfixed-pointDSPcontroller,isnowcontroloneofthemostcashprocessorfield.Thehighfrequency150MHz,greatlyimprovingthecontrolsystemcontrolprecisionandchipprocessingability.BasedonTMS320F2812C/C++efficient32-bitTMS320C28xDSPcore,andtoprovidethefloating-pointmathematicalfunctionlibrary,whichcanbeintherealizationoffixed-pointCPUconvenientfloating-pointoperation.Intheaccuracyservocontrol,inverterpowersupply,UPSpowersupplyetcwidelyused,simultaneouslyisthemotordigitalcontrolproductupgradesthebestchoice.IntroducesamethodbasedonDSPmicroprocessortemperaturemonitoringsystemdesignscheme.Thismonitoringsystemforthecore,takeTMS320F2812chipsonthebasisofthehardwaredesign,withthehelpofProtelsoftwaredevelopmentsystemtoaccomplishthesystemsoftwaredesign,inPCusingtemperaturemonitoringsoftware,throughserialcommunicationwiththetemperatureoftherealtimemonitoringsystem,madefulluseofpowerfuloperationability,DSP2812withDSPonFFTcalculations,torealizetheinputsignaltrackingmeasurementoffrequency.Accordingtotheactualfrequencycalculationalgorithmofsamplingperiod,withoutanyincreaseinhardwareinvestmentconditionstheproblemsolvedsynchronoussampling.Thissoftwarephaselockimprovementmethodandachievedhigh,simple,real-timecomputingworkloadissmall.Theexperimentalresultsshowthatthemonitoringandtransmissionsystemhardwaresimplestructure,highaccuracy,highintelligence,willbeabletorealizethedistancemonitoring.Thepracticeindicatesthatthesystemusedtogoodeffect,haswideapplicationprospects.KeyWords:Temperaturesensors;Serialcommunication;Remotecontrol;DSP盐城工学院本科生毕业说明书(2011)目录1.前言.................................................................................................................................11.1课题设计背景........................................................................................................11.2国内外研究现状....................................................................................................11.3课题设计内容........................................................................................................52.系统的总体结构与硬件电路设计.................................................................................52.1系统总体结构设计................................................................................................52.2温度传感器模块....................................................................................................62.3DSP电路设计.......................................................................................................102.4数据采集模块......................................................................................................132.5GPRS通信模块设计............................................................................................143.下位机软件设计...........................................................................................................183.1下位机软件的总体设计.......................................................................................183.2数据采集程序设计..............................................................................................203.3GPRS通信程序设计............................................................................................224.上位机软件设计...........................................................................................................234.1软件功能与总体结构设计...................................................................................234.2上位机与DSP通信的实现..................................................................................244.3监控软件平台的开发...........................................................................................255.系统集成与调试...........................................................................................................316.结束语...........................................................................................................................34参考文献............................................................................................................................35致谢............................................................................................................................36附录:...................................................................................................................................37盐城工学院本科生毕业说明书(2011)11.前言1.1课题设计背景温度是一个非常重要的物理量，因为它