With the gradual maturity of 5G technology in recent years, the application of the Internet of Things has begun to enter our lives more deeply, but there will always be fires in our lives, and the automatic fire alarm is to control the fire in time to avoid greater Loss. The core technology of the automatic fire alarm system is the fire signal sensing technology [1]. The comprehensive processing of multiple sensors enables the alarm to issue alarms more accurately. Within the coverage of the 5G network, once the alarm is triggered, the alarm will be sent to the mobile phone and the 119 center through the 5G network and the fire level can be dealt with in time.

Wang Lei, Chang Yunfeng, Jin Lulu, Zou Jinting, Yu Yue. Research on the development and testing of remote automatic fire alarms based on the internet of things. Academic Journal of Engineering and Technology Science (2021) Vol. 4, Issue 3: 64-67. https://doi.org/10.25236/AJETS.2021.040308.

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[2] Wen Yibin(2002). Development and prospects of automatic fire alarm technology at home and abroad [J]. Fire Technology and Production, vol.12 ,no.20,pp.52-53.

[3] Niu Zhenhua, GB 22134-2008 Automatic Fire Alarm System Component Compatibility Requirements, Assistant Engineer, Guangdong Guohua Yuedianshan Power Generation Co., Ltd.

[4] Li Hua MCS-51 series MCU application interface technology [M] Beijing University of Aeronautics and Astronautics Press, 1993