According to the query of the fire network, it is known that the control module needs to be added before the partition is started, that is, coding is needed. Code for Design of Automatic Fire Alarm System (20 13) cancels the partition start, so there is no need to add control module and code.

Fire broadcasting system is also called fire emergency broadcasting system. Its basic working principle is simple. In case of fire, the sound source equipment sends out an emergency broadcast signal. After the broadcast power is amplified, the coding output control module switches to the speakers in the designated area to realize emergency broadcast.