无人值守电话报警装置

AUTOMATIC REPORT SYSTEM OF TELEPHONE

用热释电红外元件采集人体感应信号，在非法入室行窃者无察觉情况下，通过ＰＩＣ１６Ｃ５７单片机控制电话拨号片ＵＭ９１５３１，自动向外出用户电话呼叫报警。

The paper describes an automatic report system of telephone.By means of an infra-red ray unit and a PIC16C57 single-chip computer,the system can collect sign of human body induction and control telephone dial.When a thief entered the house,the user outside can get an emergency call.