本系统通过红外热式传感器获取室内人员信息，并发送信号到单片机。单片机收到报警信息后通过要求人员输入密码的方式确定目标身份，并通过蜂鸣器报警的方式警示入侵者。另外，系统配备具手机通信功能的GSM模块，能将室内安全状况第一时间发送至用户手机终端。不仅大大提高系统安全性及智能性，也方便用户的使用。-The system is available through infrared sensors indoor personnel information, and sends a signal to the microcontroller. After the microcontroller receives alarm information to determine the identity of the target by requiring personnel to enter the password of the way, and by way of warning the intruder alarm buzzer. In addition, the system is equipped with a GSM mobile phone communication function module, the first time the security situation in the room can be sent to the user s mobile phone terminals. Not only greatly improve system security, and intelligence, but also user-friendly to use.