Emergency broadcasting receiver

Abstract

The invention relates to an emergency broadcasting receiver, which comprises a first radio module, a second radio module, a decoder, a power module, a central controller, an analog switch, a display screen, an indicator light, and an amplifier and a loudspeaker mutually connected. The emergency broadcasting receiver is used for receiving radio broadcasting frequency signals, wherein the first radio module receives the radio broadcasting frequency signals and transmits the radio broadcasting frequency signals to the analog switch; the second ratio module receives composite signals; the decoder decodes the received composite signals to obtain radio broadcasting frequency signals and identification signals, and transmits the obtained radio broadcasting frequency signals to the analog switch and the obtained identification signals to the central controller; the identification signals carry ID segment information; and the central controller is provided with an identifier ID, performs analysis according to the identification signals, and controls the amplifier, the indicator light, the display screen and the analog switch. By receiving identification information by groups, the automatic turn-on and turn-off of the emergency broadcasting receiver is realized.

Description

technical field [0001] The invention relates to a broadcast receiving device, in particular to an emergency broadcast receiver used in emergency situations. Background technique [0002] The severe pain and threat brought by sudden accidents to people's lives and properties makes us have to think deeply about the emergency response methods to deal with sudden accidents, so as to reduce the damage to people's lives and properties when sudden accidents occur. Broadcasting has the advantages of simple construction, convenient erection, long transmission distance, wide transmission range, and fast transmission speed. There is no substitute for means and methods. Especially when traffic is interrupted, power supply, and communication are paralyzed due to disasters, the advantages are more obvious. [0003] Most of the current emergency broadcasts are transmitted through SCA channels. SCA uses the vacant frequency spectrum in the existing FM stereo broadcast baseband signal, thu...

AI Technical Summary

Problems solved by technology

However, due to the sudden occurrence of disasters, if the emergency broadcast receiver is closed, even if the broadcast transmitter sends out the emergency broadcast, the emergency broadcast receiver will not receive the emergency broadcast. If you want to receive the emergency broadcast The emergency broadcast receiving end must be turned on, which will inevitably result in a waste of energy

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