基于单片机的简易电子称本科毕业论文

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1、西安邮电大学毕业论文基于单片机的简易电子称作者：梁忠涛院系：自动化学院专业：测控技术与仪器班级：测控1103指导老师：周有I英文摘要摘要此次设计主要是以单片机AT89S52为核心设计的简易电子秤。本设计主要分为传感器部分、单片机中央处理部分、LCD显示部分、键盘输入部分。利用压力传感器采集信号，DS1602显示单价和质量。输出信号输入到中央处理部分AT89S52的芯片,通过信号放大和AD转换，编程对信号进行处理传送到1602液晶显示屏显示相关数据，按键电路通过按键对单价进行设置。本设计结构简单，具有抗干扰能力

2、强、成本便宜、可扩展性强等特点。关键词：单片机压力传感器液晶显示电子秤II英文摘要Topic:HardwareDesignofElectronicScaleBasedonSingleChipMicrocomputerCaiLiming2008926068,AutomationmajorAbstractThishardwaredesignofelectronicscaleismainlybasedonthe51seriessingle-chipAT89S52ascontrolcore,realizestheba

3、siccontrolfunctionofelectronicscale.Inthedesignofthesystem,inordertomakebetteruseofthemodulardesignmethod,thedesignofeachunitstepfunctionmodule,thehardwareofthesystemcanbedividedintothesmallestsystem,dataacquisition,man-machineinterfaceandpowersupplysystemf

4、ourparts.MinimumsystemconsistsofAT89S52andextensionoftheexternaldatamemory;dataacquisitionpartconsistsofpressuresensor,signalpre-processingandA/Dconversionparts,includesanoperationalamplifierADC0832;man-machineinterfaceforkeyboardinputandliquidcrystaldispla

5、y,themainuseofmatrixkeyboardandLCD1602display,caneasilyinputdataandintuitivedisplayvalue.Softwaredesignofsingle-chipCprogramminglanguage,toachievethedesignofthewholecontrolfunction.Theelectronicscalecanrealizethebasicfunctionofweighing,weighingrangefor0.5-1

6、0kg.Thewholesystemhastheadvantagesofsimplestructure,convenientuse,completefunction,highprecision,hasthecertaindevelopmentvalue.Keywords：microcontrollerpressuresensorliquidcrystaldisplayelectronicscaleII目录目录第1章引言..............................................

7、.................................................................................11.1选题的目的和意义......................................................................................................11.1.1目的......................................................

8、................................................................11.1.2意义......................................................................................................................11.2研究现状综述.