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家庭语音报警系统的设计

摘 要 随着现代化进程的快速发展，人们的经济消费水平普遍得到提高，但经济的高度发展离不开人口的急剧增加，尤其是流动人口的增加幅度日益攀升，无形之中就给居住在城市中的人们提出了安防的难题。在传统的家庭安防措施里，例如防盗门或者人防保安，并不能很好的起到防范作用，所以家庭语音报警系统的设计对于维护城市中居民家庭安全具有非常重要的意义。家庭语音报警系统能够准确的检测到不法分子入侵的信号，及时播报语音报警信号并且记录作案时间，实现对住宅的安全防控。本设计采用AT89S51式单片机分析处理数据，将处理后的信号传输至语音芯片ISD4004，开启播报警情语音等相应的其他功能。

关键词 AT89S51 ，ISD4004，语音报警

ABSTRACT

With the the the continuous development of of the modern society, the the level of people's economic has been significantly improved, but the the the height of the development of of the economy can not,floating population amplitude increasingly climbed, invisible among the give living in citiesthe our of the the people were asked the a security and of the puzzle. In the the the traditional home security measures years, for example, the anti-theft door or civil air defense security, and can not be a

very good act as deterrents., So the the the design of of the Family voice alarm system for the maintenance of the family of residents in the the city security of has a very important significance. Family voice alarm system be able to accurately of the detect to the the signal the invasion of by the lawless elements, in a timely manner broadcast the voice alarm signal and record the the committing the crime time, to achieve the prevention and control of of on the residential the safety of. This design uses the data of the AT89S51--style single-chip analytical processing, will the the the signal transmission after the the processing to the the of voice chip ISD4004, a the corresponding the other functions of to the sowing the alarm situation Voice and and so on is opened. Key Words: AT89S51；ISD4004；voice alarm

1.绪论..................................................................................................................... 1

1.1 引言 ....................................................................................................... 1

1.2 国内外发展现状 ................................................................................... 1 1.3 本课题研究的主要内容 ....................................................................... 2 2.系统硬件电路的设计......................................................................................... 2

2.1 系统相关芯片的简介 ........................................................................... 2

2.1.1 主控制器模块 ........................................................................... 2 2.1.2 单片机系统中所用其他芯片简介 ........................................... 6 2.2 系统设计要求分析及总体设计框图 ................................................. 11

2.2.1 系统设计要求分析 ................................................................. 11 2.2.2 系统总体设计框图 ................................................................. 11 2.3 信号采集放大与处理电路设计 ......................................................... 12

2.3.1 人体信号采集装置 ................................................................. 12 2.3.2 信号放大与处理电路 ............................................................. 15 2.4 语音录放电路设计 ............................................................................. 17

2.4.1 语音录放电路 ......................................................................... 17 2.5 键盘和显示电路设计 ......................................................................... 18

2.5.1 键盘电路 ................................................................................. 18 2.5.2 显示电路 ................................................................................. 19 2.6 DS1307电路设计 ................................................................................ 21 3.系统软件程序的设计....................................................................................... 22

3.1 软件分析及设计流程框图 ................................................................. 22 3.2 录音播报软件的具体实现 ................................................................. 23 4. 总结................................................................................................................ 29