Internet of Things and emergency broadcast synchronous deployment system and method

The invention discloses an Internet of Things and emergency broadcast synchronous deployment system and method. The method comprises the steps that S1, a county-level front-end management system receives an Internet of Things emergency signal, a superior emergency broadcast signal and a local emergency department signal; S2, the county-level front-end management system is connected with a scheduling control all-in-one machine or a county-level broadcast village response adapter, converts the Internet of Things emergency signal, the superior emergency broadcast signal and the local emergency department signal into an RDS instruction, a DTMB instruction, a DVB-C instruction, an IP/NB-IoT or LoRa instruction and a local sound source, and sends the above instructions and sound source to a multimode emergency broadcast terminal; and S3, the multimode emergency broadcast terminal receives and analyzes control instruction information, voice information or short messages issued by the superior, and returns the workin