Emergency alarm device

The invention discloses an emergency alarm device, and the device comprises a host, an antenna feed system, and a loudspeaker. The interior of the host is provided with an alarm control module, a digital power amplification module, a communication module and a power module in an integrated manner. The alarm control module is connected with the digital power amplification module, the communication module and the power module. The digital power amplification module is connected with the loudspeaker, and the communication module is connected with the antenna feed system. The power module supplies power to the alarm control module, the digital power amplification module and the communication module. The device can guarantee the reliability of power supply, can give a secondary alarm under the condition that the commercial power is cut off, can support the continuous operation of a system, and improves the anti-attack and recovery capabilities of an air defense alarm power supply system. 本发明公开了种应急警报装置，包括主机、天馈系统及扬声