沈阳航空航天大学北方科技学院毕业设计（论文）PAGEIV沈阳航空航天大学北方科技学院毕业设计(论文)PAGE\*MERGEFORMATI摘要电话拨号防盗报警器作为家庭防盗报警器材的一员，非常经济适用，它进入人工警戒后，主控CPU不断检查触发开关的状态，当盗贼入室触动报警触发开关时，立即启动电话拨号程序向主人报警，当然，也可以通过修改软件使其在现场发出高分贝报警音。当用户受到接收到自家电话号码和报警蜂鸣音信息时，便知道家里可能有人入室盗窃，从而做出相应的应急措施。实践证明，该系统报警快速、准确。由于该系统电路简单，而且利用的是公共通信网，因此不存在建立独立报警系统网络问题，具有成本低、体积小、能耗低且不影响正常打电话等突出优点。关键词：电话拨号防盗报警；单片机；AT89C2051AbstractDialburglaralarm，asamemberofhomesecurityalarmequipment,veryeconomical,afteritsentryintoartificialalert,hostCPUconstantlycheckingthestatusofthetriggerswitch.Whenthievesburglaryalarmtriggeredwhenthetriggerswitch,Immediatelystartthephonedialeralarmtothemaster,ofcourse,youcanalsomodifythesoftwaretoissueinthefieldofhighdecibelaudioalarm.Whenusersarereceivingtheirownphonenumberandalarmbeepinformation，somepeoplemaybeawareofhomeburglary,andthusmaketheappropriateemergencymeasures.Practicehasprovedthatthesystemalarmquicklyandaccurately.Asthesystemissimple,anduseofapubliccommunicationnetwork,thereisnoalarmsystemtoestablishanindependentnetworkproblems,lowcost,smallsize,lowenergyconsumptionwithoutaffectingthenormalphonecallsandotheradvantages.Keyword:Dialburglaralarm;SCM;AT89C2051目录TOC\u\t"标题1,1,标题2,2,标题3,3"前言PAGEREF_Toc265644021\hI1课题分析PAGEREF_Toc265644022\h11.1方案论证PAGEREF_Toc265644023\h11.1.1方案提出及准备PAGEREF_Toc265644024\h11.2.2方案的选择PAGEREF_Toc265644025\h12系统设计PAGEREF_Toc265644026\h52.1设计思路PAGEREF_Toc265644027\h52.2系统方案PAGEREF_Toc265644028\h63单片机介绍PAGEREF_Toc265644029\h83.1单片机介绍PAGEREF_Toc265644030\h83.1.1单片机的发展PAGEREF_Toc265644031\h83.1.2AT89C2051单片机PAGEREF_Toc265644032\h94电路设计PAGEREF_Toc265644033\h114.1脉冲拨号原理PAGEREF_Toc265644034\h114.2键盘输入PAGEREF_Toc265644035\h124.3显示电路PAGEREF_Toc265644036\h134.4脉冲拨号实现过程PAGEREF_Toc265644037\h165程序设计PAGEREF_Toc265644038\h185.1主程序设计PAGEREF_Toc265644039\h185.2变量定义及初始化模块PAGEREF_Toc265644040\h195.3启动报警器子程序模块PAGEREF_Toc265644041\h215.4拨号脉冲子程序模块PAGEREF_Toc26564