基于单片机AT89C2051的大气中PM2.5粉尘颗粒物浓度的检测系统设计和实现 计算机科学与技术专业VIP免费

中文摘要本文在对单片机AT89C2051研究的基础上，以AT89C2051为核心控制芯片，对光电鼠标在正交模式相对位移检测系统进行设计与应用；通过对鼠标底层通信原理与协议的深入分析，探讨以AT89C2051单片机AT89C2051构成串行鼠标的实现方法，介绍鼠标编码器数据取软件的设计原理及方法，给出串行鼠标的软件设汁„考虑到存在的各种干扰对系统的影响，从软、硬件设计以及EDA仿真技术三个方面进行分析，采取相应的措施以增强系统的抗干扰能力。基于AT89C2051串行鼠标位移检测系统的设计与应用。本系统鼠标是一种快速定位器，通过移动鼠标可以快速定位屏幕上的对象，是计算机图形界面交互的必用外部设备。通过对鼠标底层通信原理与协议的深入分析，探讨以AT89C2051单片机AT89C2051构成串行鼠标的实现方法；介绍鼠标编码器数据取软件的设计原理及方法，给出串行鼠标的软件设计。考虑到存在的各种干扰对系统的影响，从软、硬件设计以及EDA仿真技术三个方面进行以增强系统的抗干扰能。关键词：单片机AT89C2051；控制芯片；AT89C2051AbstractBasedonthestudyofsinglechipmicrocomputer,AT89C2051istakenasthecorecontrolchiptodesignandapplytheopticalmouseintheorthogonalmoderelativedisplacementdetectionsystem.Throughthemouseunderlyingcommunicationoriginaltheoryandin-depthanalysisoftheagreement,toinvestigatetherealizationmethodofAT89C2051singlechipserialmousemouseencoderdataforsoftwaredesignprinciplesandmethods,givesaserialmousesoftwaredesign„consideringtheexistenceofvariousinterferenceontheinfluenceofthesystem,fromhardwareandsoftwaredesignandEDAsimulationtechnologythreeaspectstocarryontheanalysis,thecorrespondingmeasurestobetakeninordertoenhancesystemanti-jammingcapability.DesignandapplicationofAT89C2051serialmousedisplacementdetectionsystem.Thissystemmouseisakindoffastlocalizer,bymovingthemousecanquicklylocatetheobjectsonthescreen,isthenecessaryexternalequipmentforcomputergraphicsinterfaceinteraction.Throughthein-depthanalysisofthecommunicationprincipleandprotocolofthebottomofthemouse,therealizationmethodofaserialmousewithAT89C2051microcontrollerisdiscussed.Thispaperintroducesthedesignprincipleandmethodofdataacquisitionsoftwareofmouseencoder,andgivesthesoftwaredesignofserialmouse.Consideringtheinfluenceofallkindsofinterferenceonthesystem,thesystemcanbeenhancedfromthreeaspectsofsoftware,hardwaredesignandEDAsimulationtechnology.Keywords:Keywords；Singlechipmicrocomputer；Controlchip；AT89C2051目录引言.......................................................11课题研究背景与价值.............................21.1、选题意义与价值..................................21.2、课题的研究意义与目的.......................21.3、研究范围与内容..................................22粉尘浓度检测仪硬件设计......................32.1、系统硬件组成结构..............................32.1.1模块说明............................................32.1.2系统的功能与技术指标......................42.2、单片机AT89C2051部分..............................42.2.1选择适合的单片机AT89C2051......................42.3粉尘传感器部分..................................82.3.1粉尘传感器的选择.............................82.3.2粉尘传感器的运转原理......................92.3.3该PM2.5粉尘传感器的引脚连接...........112.4LCD的部分...........................................112.524C02存储器部分..................................142.5.1选择24C02存储器的必要性..................142.5.224C02存储器的性质如下表所示；........142.5.324C02存储器与单片机AT89C2051的连接....152.6键盘电路设计....................................152.7报警电路设计........