课程设计题目：基于重力感应电子称设计学生姓名：学号：系（院）：专业：班级：指导教师姓名及职称：起止时间：年月——年月基于重力感应电子称设计摘要：本次设计是基于STC89C52RC单片机所做的在电子称的基础上的拓展型设计。针对现实生活中，时有发生隧道前汽车超高或超重的交通意外，本次设计旨在完成一个能智能测重、测高的模型，并探索其实用性，判定能否在实际生活中应用这种设计理念。本次设计将会用到QC12864，红外发射器，红外接收器以及重力传感器等原件，进行模型设计。QC12864用于显示数据，红外发射接收器则用于模拟测高，重力传感器用于模拟测重。关键词：STC89C52RC单片机拓展型设计模拟测高模拟测重DesignbasedonthegravitysensorelectronicsAbstract：ThisdesignisbasedonSCMdoneSTC89C52RCexpanddesign.Forreallife,whentheultra-highoroverweightbeforetunnelcartrafficaccident,thisdesignisintendedtocompleteanintelligentlyweigh,altimetermodelandexploreitsusefulnesstodeterminewhethertheapplicationinreallifethisdesignconcept.ThisdesignwillbeusedintheoriginalQC12864,infraredemitters,infraredreceiversandgravitysensors,themodeldesign.QC12864usedtodisplaydata,infraredtransmitterreceiverisusedtosimulatealtimetry,gravitysensorisusedtosimulatethemeasuredweight.Keywords：STC89C52RCSCM；Expanddesign；AnalogAltimeter；AnalogWeigh目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc408412129"基于重力感应电子称设计PAGEREF_Toc408412129\h2HYPERLINK\l"_Toc408412130"引言PAGEREF_Toc408412130\h4HYPERLINK\l"_Toc408412131"1电子称原理及系统方案论证PAGEREF_Toc408412131\h4HYPERLINK\l"_Toc408412132"1.1电子称的主要元器件PAGEREF_Toc408412132\h4HYPERLINK\l"_Toc408412133"1.1.1重力传感器PAGEREF_Toc408412133\h4HYPERLINK\l"_Toc408412134"1.1.2A/D转换器HX711PAGEREF_Toc408412134\h5HYPERLINK\l"_Toc408412135"1.1.312864液晶显示屏PAGEREF_Toc408412135\h5HYPERLINK\l"_Toc408412136"1.3电子称的工作原理PAGEREF_Toc408412136\h5HYPERLINK\l"_Toc408412137"2.2键盘控制及12864显示电路PAGEREF_Toc408412137\h8HYPERLINK\l"_Toc408412138"2.2.1电路原理及原理图PAGEREF_Toc408412138\h8HYPERLINK\l"_Toc408412139"2.2.2PCB布线图PAGEREF_Toc408412139\h11HYPERLINK\l"_Toc408412140"3系统软件设计PAGEREF_Toc408412140\h11HYPERLINK\l"_Toc408412141"3.1主程序设计PAGEREF_Toc408412141\h12HYPERLINK\l"_Toc408412142"3.2子程序设计PAGEREF_Toc408412142\h12HYPERLINK\l"_Toc408412143"3.2.1A/D转换启动及数据读取程序设计PAGEREF_T