基于单片机的红外报警监控系统设计与实现

Design and Implementation of Infrared Alarm and Monitoring System Circuit Based on Single Chip Microcomputer

详细介绍了红外报警监控系统,以保障人民群众生命财产安全,提供对他人非法入侵的警报为系统设计出发点。系统核心元件采用STC89C52单片机以及DYP-ME003红外人体传感器。通过传感器捕捉外界信号并送回单片机进行处理来完成人体探测报警以及当前环境温湿度和实时时间显示。当有人闯入红外人体传感器探测范围时,传感器可接收到人体因恒温而发出的红外射线,并将信号传回单片机进行处理,随后报警灯亮且发出蜂鸣报警声。同时为了防止误报引起的不便,系统还可通过手动按钮暂时打开或关闭报警功能,而且不影响温湿度与时间的显示。此外,时间也可通过按钮调整,并可显示年、月、日、时、分、秒,当不需要报警时还可充当时钟和温湿度计使用。设计真正实现了报警器与日常使用的时钟、温湿度计等的一体化,具有很强的实用性。

The infrared alarm and monitoring system,for protecting people ＇s life and property,is specifically introduced in this paper. The alarm for illegal intrusion can be considered as the main start point for system design. STC89C52 single chip microcomputer and DYP- ME003 infrared sensor are the core components of this system. When it is acquired by the sensors,the signal can be send back to the MCU to be analyzed for humid temperature display and alarm. The sensor launches infrared rays when catching the intruded signal and sends the signal back to the MCU for processing so as to execute alarm,time and temperature display. On the other hand,to prevent false alarm,a switch can be used manually to turn on the alarm and turn it off temporarily while the humid temperature display is not affected. By the way,the time of the clock also can be modified manually to show year,month,date,hour,minute and second. When the alarm function is not needed,the system can be used as a clock and hygrometer. The design achieves integration of alarm system and daily application such as clock and thermometer with high practicability.