电子秤的设计--毕业论文VIP免费

届毕业设计(论文)题目:电子秤的设计学院:电子与信息工程学院专业:电子信息工程学号:姓名:指导老师:起讫日期:2014年06月电子秤的设计摘要智能电子秤是日常生活中经常使用的一种测重装置,它采用了电子技术、传感器技术等，测量的误差小，可以将“精确、快速、自动”的要求很好的满足。现实生活中，在学校、市场、工厂、医院等地方都得到了广泛的推广和应用。本设计主要以单片机为中心模块,针对电子秤的自动称重、自动处理数据、自动显示来进行设计。本系统中的数据采集模块主要负责将压力这个非电量转化为电量；信号处理模块主要负责对信号的放大和模/数转换；单片机控制模块主要负责数据的进一步处理、控制端口的输出等；显示模块主要负责显示重量、单价、总价；程序设计方面采用的模块化的设计思想。通过对这些模块的方案选择以及硬件设计，详细的介绍了本系统是如何进行数据采集、数据处理以及显示的。关键词：电子秤变阻式压力传感器单片机A/D转换器ThedesignofelectronicscalesⅡAbstractIntelligentelectronicscaleisoneoftheweighingdevicethatwearefrequentlyusedindailylife,whichuseselectronictechnology,sensortechnologywithasmallmeasurementerror.Anditcanbenicetomeettherequirements--"precisely,quicklyandautomatically".Inreallife,ithasbeenwidelypromotedandappliedinschools,markets,factories,hospitalsandotherplaces.Thesystemusesthesingle-chipascentralmodule,beingdesignedforautomaticallyscalesforweighing,automaticdataprocessing,automaticdisplay.Dataacquisitionmoduleismainlyresponsibleforthepressureofthenon-powerintoelectricity;ThesignalprocessingmoduleismainlyresponsibleforsignalamplificationandA/Dconverter;SCMcontrolmoduleismainlyresponsibleforthefurtherprocessingofdata,thecontroloutputport,etc.;Thedisplaymoduleismainlyresponsiblefordisplayingtheweight,unitprice,totalprice;modulardesignconceptadoptedinthedesignprocess.Throughselectingtheschemeofthesemodulesanddesigninghardware,describesindetailhowthesystemfordataacquisition,dataprocessinganddisplay.KeyWords：Electronicscales;variableresistancetypepressuresensor;microcontroller;A/DconverterⅠ目录摘要.........................................................................................................................................................ⅠAbstract..............................................................................................................................................................Ⅱ第一章绪论.........................................................................................................................................................11.1引言.......................................................................................................................................................11.2国内外的发展现状..............................................................................................................................11.3研究的目的和意义..............................................................................................................................11.4总体设计思路......................................................................................................................................21.5论文结构..............................................................................................................................................2第二章系统方案设计.........................................................................................................................................32.1系统整体设计方案比较.........