基于基于电话网的家庭安全告警系统毕业论文

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1、成绩：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：指导教师：2017年5月20日目录考试小抄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·················································································42.1单片机最小系统····························

3、····················································42.2红外信号检测电路·············································································112.3键盘输入电路··················································································142.4语音电路··························

4、······························································162.5DTMF编码发送电路··········································································192.6模拟摘机待机电路及铃流检测电路··························································21考试小抄2.7忙音检测电路·························

5、··························································252.8供电电路························································································283.系统软件调试及相应程序·································································293.1中断原理概述·······················

6、····························································293.2系统整体软件流程图··········································································313.3红外信号检测的软调试········································································323.4键盘接口电路的软调试···················

7、·····················································333.5编码发送中断调试··············································································35总结··································································································37致谢···················

8、···············································································38考试小抄参考文献····························