Sudden-onset disaster emergency wireless public broadcast system

Abstract

A sudden-onset disaster emergency wireless public broadcast system comprises a main end device and a plurality of terminals. The main end device is composed of a local emergency alarm signal generator, an encrypted signal generator, a wireless broadcast emitter and the like. Each terminal is composed of a wireless channel scanning receiver, a terminal maintenance device, a signal decipher, a terminal backup battery and the like. By means of the sudden-onset disaster emergency wireless public broadcast system based on an existing wireless broadcasting station, a user does not need to worry about power outage, network link outage and line breakage, extremely-high reliability is achieved, emergency encrypted signals can be reliably received from existing pubic wireless broadcasting stations at all wave bands and / or temporary emitters through the sudden-onset disaster emergency wireless public broadcast system at any time, rapid automatic start is achieved, voice information of early alarms, alarms and action guidance from government emergency departments is directly and forcefully broadcasted to all victims, existing resources are fully shared, and emergency system construction can be rapidly completed at a low cost; self-maintenance can be achieved for the system, and maintenance difficulty and maintenance expenses can be greatly reduced for an extremely-large number of wireless public broadcast system terminals which are distributed nationwide.

Description

technical field [0001] The invention relates to the field of disaster emergency public broadcasting system. Background technique [0002] More and more frequent earthquakes, floods, storms, volcanoes, tsunamis, freezing, and cosmic rays or terrorists attacking satellites, networks and other extreme disasters, such as the Wenchuan earthquake in China in 2008 and the Yuyao flood in China in 2013... Electricity, internet, communication, lines, and traffic are all cut off. The existing network, telephone, TV and other advanced communication facilities basically cannot play a role. Under such circumstances, people who are usually highly dependent on modern high technology are particularly helpless in the face of natural disasters! People's minds are blank, and the government's various emergency departments also feel powerless... At this time, how to conduct orderly and reasonable command Dispatching, timely inform the helpless general public of various action instructions scatte...

AI Technical Summary

Problems solved by technology

[0009] At present, even the existing emergency systems in the United States and Japan can only realize the function of the early warning system, and can only use conventional media to broadcast information and use special sirens to send alarm signals (but cannot issue voice information), and cannot be used after disasters. Also ensure reliable use - as this system relies on wired network and mains power, and you have to make sure the user turns it on

[0010] Finally, it is very different from equipment in other industries. After the system is built, it must be continuously maintained to ensure its key use after many years! Due to its wide distribution, extremely diverse installation terrain, large number, and long standby time, its Routine maintenance becomes a very arduous and costly project

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