这是IPC设备中的报警模块，主要是设备报警，烟感报警等-This module is the the IPC device' s alarm equipment alarm, smoke alarm

利用红外传感器检测烟雾，如果浓度过高就开始报警，起到防火的作用-Infrared sensor detects smoke, the alarm if the concentration is too high to start, play a role in fire

家居智能火情警报系统, 可以检测温度并显示在界面上，可以显示烟雾传感器的状态到界面上(The home intelligent fire alarm system can detect the temperature and display it on the interface, showing the status of smoke sensor to the interface.)