Abstract
In recent years, our standard of living has improved, given the rapid
development of society, the development of electronic technology and
computer hardware and software technology. The building is more and
more complex, a large number of electrical appliances and complex
staggered lines make our daily life have potential safety hazards, so the
fire safety problem has become a big problem in our life to be solved, and
more and more fire systems and fire extinguishing systems have emerged.
A small fire alarm system of intelligent home based on single chip
microcomputer is designed, which realizes the functions of smoke alarm,
temperature abnormal alarm, infrared detection and external interruption.
In terms of hardware selection, stm32f103c8t6 single chip is used as
the main control chip, which integrates temperature sensor (LM75A),
smoke gas sensor (mq-2), micro human body sensor PIR, active buzzer
and 6 × 6 × 6 light touch switch, etc. the program is written to collect
the real-time temperature and smoke concentration data information of
environmental species through the sensors of each module, and then the
single chip is used The machine stores and processes the data, and then
controls each module element according to the design logic to make
corresponding countermeasures to eliminate hidden dangers and avoid
accidents as much as possible.
Keywords：STM32 single chip microcomputer sensor Intelligence
fire alarm system
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