In this paper,a security protection system based on laser intrusion detector is designed with IAP15F4K58S4 single-chip microcomputer as the central controller. Users can build a laser net around the place where security is needed. When a laser beam is blocked, which means the protected area is invaded. The display screen shows the abnormal area, and the loudspeaker broadcasts abnormal area too. At the same time, the users will receive alarm messages. After checking the alert area,users can remove the alert by infrared remote control. The above functions of the system are verified by experiments in this paper. The system is highly responsive, easy to operate, useful and low maintenance cost,and it can be widely applied to the family enterprise security and guard against theft,etc.%以IAP15F4K58S4单片机为中央控制器,设计了一种基于激光入侵探测器的安全防盗系统. 布置激光网阵后,当激光光束被遮挡,即保护区域被入侵时显示屏显示异常区域,喇叭会播报异常,同时用户也会收到警报短信. 用户查看警报区域后,可以通过红外遥控解除警报. 实验表明,系统具有反应灵敏,操作简便,使用及维护成本低等优点,可广泛应用于家庭防盗、企业防盗等.
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