本文首先讨论了智能住宅安全防范技术的国内外发展概况,并根据国外发展的趋势和国内行情,设计了一种智能住宅的安全防范报警系统,由红外探测器实现防盗并自动电话拨号报警。当探测器检测到警情的时候,中断请求,再由单片机控制电话接口电路,实现模拟摘机,通过DTMF就会向单片机发出拨号电路实现自动拨号,并由语音电路通过电话完成播放预先录制好的语音信息,实现语音报警,来通知用户发生警情,以便让他们及时的作出相应措施。系统还设置了密码验证,通过键盘可输入验证码,并具有修改密码功能,同时也配置了备用电源以及具有掉线和断电自诊断功能,增强了系统的安全性和稳定性。 This paper first discusses the domestic and international development of smart home security technology, and designs a smart home security alarm system based on the trend of foreign development and the domestic market. The infrared detector is used to prevent theft and dial the alarm automatically. When the detector detects the alarm when the interrupt request, and then controlled by the microcontroller telephone interface circuit to achieve analog off-hook, through the DTMF will be sent to the microcontroller dial-up circuit to achieve automatic dial-up by the voice circuit by telephone to complete the pre-recorded good Voice message, to achieve voice alarm, to notify users of alarm, so that they can make timely and appropriate measures. The system also set password verification, enter the verification code through the keyboard, and has the ability to modify the password, but also configure the backup power supply and has dropped and self-diagnosis power-off, enhanced system security and stability.