大学本科电气专业优秀毕业设计环境状态监控系统设计

完成日期： 20X完成日期： 20XX年X月 毕业设计题目： 环境状态监控系统设计 院系： 电气信息学院 专业： 班级： 学号： 学生姓名： XX 导师姓名： XXXX 诚信声明本人声明：1、 本人所呈交的毕业设计（论文）是在老师指导下进行的研究工作及取得的研究成果；2、 据查证，除了文中特别加以标注和致谢的地方外，毕业设计（论文）中不包含其他人已经公开发表过的研究成果，也不包含为获得其他教育机构的学位而使用过的材料；3、 我承诺，本人提交的毕业设计（论文）中的所有内容均真实、可信。作者签名:日期：年月曰作者签名:XX工程学院毕业设计论文XX工程学院毕业设计论文毕业设计（论文）任务书 ☆ 设计（论文）题目： 姓名XX院系电气信息学院 专业 班级 学号 指导老师 职称 教研室主任 XXX 基本任务及要求：本课题要求设计一个基于LabVIEW的环境状态监控系统，要求除了实现显示实时温度，湿度的测量与控制，能够方便的实现报警、显示环境状态变化趋势、对所测数据进行一定的统计分析等管理功能，并自动对温度，湿度进行调节。实现数据的二次开发，包括数字滤波、非线性补偿、实时温度显示等测量功能以及牛成各参数趋势曲线、分布直方图、历史数据查询、超限报警等信息管理功能。①进度安排及完成时间：2月23日〜4月20日:外出完成毕业实习，并且查阅相关资料，搜集课题所需资料，了解课题现状、课题研究的目的和意义，学习 LabVIEW软件，完成开题报告和文献综述②4月21日〜5月1日::系统总体方案和硬件电路设计③5月2日〜5月20日::完成各软件模块的编写及调试④5月21日〜6月1日::整理资料，撰写毕业设计论文⑤6月1日〜6月5日:毕业论文审定、修改及打印，答辩准备⑥6月6日〜6月8日:答辩目录TOC\o"1-5"\h\z摘要 IAbstract II\o"CurrentDocument"第1章绪论 1\o"CurrentDocument"1.1课题分析 1\o"CurrentDocument"课题概述 1\o"CurrentDocument"1.1.2课题背景 1\o"CurrentDocument"1.1.3课题实现方法及各特点 2\o"CurrentDocument"1.2总体方案设计 3\o"CurrentDocument"第2章虚拟仪器与传感器 5\o"CurrentDocument"LabVIEW概述 5\o"CurrentDocument"2.2仪器的发展 7\o"CurrentDocument"传统硬件仪器 7\o"CurrentDocument"2.3虚拟仪器主要特点及优势 8\o"CurrentDocument"虚拟仪器的主要特点 8\o"CurrentDocument"2.4虚拟仪器的分类 10\o"CurrentDocument"2.5虚拟仪器系统的设计方案 11\o"CurrentDocument"2.5.1虚拟仪器系统的构成 11\o"CurrentDocument"2.5.2虚拟仪器系统软面板的设计标准 13\o"CurrentDocument"2.5.3虚拟仪器系统的组建方案 13\o"CurrentDocument"2.6虚拟仪器未来评测 14\o"CurrentDocument"第3章硬件方案及设计 16\o"CurrentDocument"3.1硬件总体概述 16\o"CurrentDocument"3.2硬件主要组成部分 16\o"CurrentDocument"温湿度传感器 16\o"CurrentDocument"NIM系列高速采集卡6281 18\o"CurrentDocument"3.3硬件系统设计 20\o"CurrentDocument"控制被测对象部分 20\o"CurrentDocument"第4章软件设计 22\o"CurrentDocument"前面板设计 22\o"CurrentDocument"4.2程序设计 25\o"CurrentDocument"第5章程序的调试 27\o"CurrentDocument"程序的运行 27\o"CurrentDocument"5.2各部分功能调试结果 27\o"CurrentDocument"521温湿度显示及报警模块 27\o"CurrentDocument"数据分布直方图模块 28\o"CurrentDocument"5.2.3报警历史模块 28\o"CurrentDocument"5.2.4历史回放模块 29\o"CurrentDocument"总结 30\o"CurrentDocument"致谢 32\o"CurrentDocument"参考文献 33环境状态监控系统设计环境状态监控系统设计---techniquesareinvasivetypeattack.Theotherthreemethodsarenon-invasivetypeattack,attacktheMCUwillnotbephysicaldamage.Insomecases,non-invasive-typeattacksareparticularlydangerous,butbecauseofnon-invasivetypeattackscanusuallybemadeandthenecessaryequipmenttoupgrade,soitischeap.Mostnon-invasivetypeattackrequirestheattackerhaveagoodknowledgeofprocessorsandsoftwareknowledge.Incontrast,theinvasivetypeofprobedonotneedtoomuchoftheinitialattackofknowledge,andusuallyasetofsimilartechnologyavailabletodealwithawiderangeofproductsMCUgeneralprocessofinvasion-typeattackInvasivetypeofattackisthrownoffitsfirstchippackage.Therearetwowaystoachievethisgoal:thefirstoneiscompletelydissolvedoutchippackage,exposedmetalconnections.Thesecondisonlyremovedtothetopoftheplasticpackagesiliconcore.Thefirstmethodistheneedtobindtothetestfixtureonthechip,usingbindTaiwantooperate.Thesecondmethodrequirestheattackerinadditiontoacertaindegreeofknowledgeandnecessaryskills,butalsothewisdomandpatienee,butoperaterelativelyeasy.Abovetheplasticchipscanbeopenedwithaknife,epoxyaroundthechipcanbeerodedbyconcentratednitricacid.Hotconcentratednitricacidwilldissolveoutwithoutaffectingthechip,chippackagingandconnection.Thisprocessusuallyverydryconditions,becausethepreseneeofwatermayerodethealuminumwireconnectionshavebeenexposed.Then,inultrasoniccleaningofthepoolfirstchipwithacetonetoremoveresidualnitricacid,thenwashedwithwatertoremovesaltanddried.Noultrasoundpool,aregenerallyskipthisstep.Thiscase,thechipsurface,abitdirty,butdonotaffecttheoperationofUVeffectsonthechip.ThefinalstepistofindthelocationoftheprotectionfuseandfuseprotectionunderexposuretoUVlight.Generaluseatleasta100timesmagnificationmicroscope,fromtheprogrammingvoltageinputpinoftheconnectiontrackingin,tofindprotectionfuse.Ifthereisnomicroscope,theuseofdifferentpartsofthechipisexposedtoultravioletlightandobservetheresultsunderthesimplesearchmode.Operationappliedopaquepapercovertoprotecttheprogrammemorychipsarenoterasedbyultravioletlight.WillprotectthefuseexposedunderUVlight5to10minutestodestroytheprotectionbitoftheprotectiveeffect,useasimpleprogrammercandirectlyreadthecontentsofprogrammemory.TheuseoftheprotectivelayertoprotecttheMCUEEPROMcell,usingultravioletlightresetprotectioncircuitisnotfeasible.ForthistypeofMCU,thegeneraluseofmicro-probetechnologytoreadthememorycontents.Inthechippackageisopened,thechipplacedunderthemicroscopecaneasilyfindfromthememorycircuitconnectedtootherpartsofthedatabus.Forsomereason,thechiplock-bitprogrammingmodeisnotlockedinthememoryofthevisit.Advantageofthisflawonthedatalinestoprobetheabovedatacanbereadallyouwant.Inprogrammingmode,restarttheprocessofreadingandconnectprobetotheotherdatacanbereadonlineprogramanddatamemory,alloftheinformation.Thereisalsoapossiblemeansofattackistheuseofmicroscopyandlasercuttingmachinesandotherequipmenttofindthefuseprotectiontothispartofthecircuittracingandlinkingallthesignallines.Becauseofthedesigndefects,solongascutofffromothercircuitprotectionfusetoaonesignalline,youcanbantheentireprotection.Forsomereason,thisthreadisveryfarfromtheotherline,sotheuseoflasercuttingmachinecancutthewirewithoutaffectingtheadjacentline.Inthisway,usingasimpleprogrammercandirectlyreadthecontentsofprogrammemory.Althoughthemostcommonsinglechipmicrocontrollerhasfuseblowninsidethecodeprotectionfeatures,butbecauseofgenerallow-endMCUisnotpositioningtheproductionofsafeproducts,sotheyoftendonotprovidetargetedpreventivemeasuresandthelowlevelofsecurity.MCUapplicationswithabroad,largesalesvolume,commissionprocessingandtransferoftechnologybetweenfirmsfrequentlyspilledalotoftechnicaldata,makinguseofloopholesinthedesignofsuchchipsandtestinterfacemanufacturer,andbymodifyingtheinvasivetypefuseprotectionbits,etc.meansofattackorinvasion-typeattacktoreadMCU'sinternalprocedureshavebecomeeasier.AboutcommonsinglechipSTCmicrocontrollerSTC'smainlybasedonthe8051microcontrollercoreisanewgenerationofenhancedMCU,theinstructioncodeisfullycompatiblewiththetraditional8051,8to12timesfaster,withADC,4Road,PWM,dualserialports,aglobaluniqueID,encryptionofgood,stronganti-interferenee.PICMicrocontroller:MICROCHIP'sproductsisitsprominentfeatureisasmall,lowpowerconsumption,reducedinstructionset,interference,reliability,stronganaloginterface,thecodeofconfidentialityisgood,mostofthechiphasitscompatibleFLASHprogrammemorychips.EMCSCM:Elan'sproductsinTaiwan,withmuchofthePIC8-bitmicrocontrollercompatible,andcompatibleproducts,resources,comparedtothePIC'smore,cheap,therearemanyseriesofoptions,butlessinterference.ATMELmicrocontroller(MCU51):ATMElcompany's8-bitmicrocontrollerwithAT89,AT90twoseries,AT89seriesisthe8-bitFlashmicrocontroller8051iscompatiblewiththestaticclockmode;AT90RISCMCUistoenhancethestructure,allstaticmethodsofwork,containingthelinecanbeFlashMCUprogramming,alsoknownAVRmicrocontroller.PHLIPIS51PLCMicrocontroller(MCU51):PHILIPScompany'sMCUisbasedonthe80C51microcontrollercore,embeddedpower-downdetection,simulationandon-chipRCoscil