基于单片机的电话报警系统的设计与实现

The design and realization of the telephone alarm system based on singlechip

在已普及的公共电话网基础上研制一种新型家用自动报警系统,对于保障居民的生命财产安全,提高快速反应能力,有着十分重要的意义。它可以监测火灾、盗贼入室行窃和老年人发出的呼救信号,并自动电话拨号报警和语音报警。整个系统以单片机AT89C51为核心,结合DTMF(双音多频)远程数据传输技术,采用无线数据传输方式,不需重新布线,特别适用于已装修用户及布线不方便的场合。系统通过多次的测试,显示了快速、有效、多功能的特点,具备很强的实用性。

The development of a new home alarm system based on the public telephone network is very important to the protection of life and property safety of residents and improve the rapid response capability. It can monitor fire, burglary.＂ and theft of older persons, automated telephone dial-up alarm and the voice alarm. The whole system with AT89C51 as the core, DTMF （dual-tone multi-frequency） remote data transmission technology,, the use of wireless data transfer method, without re-wiring, is particularly applicable in the decoration and cabling inconvenient for the user occasions. System, through repeated testing, can be fast, effective, multifunctional solution of security problems at home. Have a certain practicality.