基于电话网的自动报警系统定稿

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1、成绩：江西科技师范学院毕业论文（设计）题目（中文）：基于电话网的家庭安全告警系统(外文):SafeandAlarmingSystemofhomeBaseonTelephoneSystem系（院）：通信与电子学院专业：电子信息工程学生姓名：黄高亮指导教师：曾旺辉2007年5月20日42目录1.引言···························································································31.1课题的开发背景··

2、··············································································41.2课题设计的意义················································································22.系统硬件设计··········································································

3、·······42.1单片机最小系统················································································42.2红外信号检测电路·············································································112.3键盘输入电路······················································

4、····························142.4语音电路························································································162.5DTMF编码发送电路··········································································19422.6模拟摘机待机电路及铃流检测电路················

5、··········································212.7忙音检测电路···················································································252.8供电电路························································································283.系统软件调试及相应程序····

6、·····························································293.1中断原理概述···················································································293.2系统整体软件流程图··········································································313.3红外信号

7、检测的软调试········································································323.4键盘接口电路的软调试········································································333.5编码发送中断调试··········································································

8、····35总结··································································································3742致谢··································································································38参考文献····················