Design of fire monitoring and alarm system based on Internet of Things cloud platform
For a long time,fire has been a great threat to people's life and property safety.A low-cost,high reliable and stable fire alarm system based on STM32 single chip microcomputer is designed.The system mainly consists of the STM32 main control chip,a DHT11 temperature and humidity sensor,an MQ-2 smoke sensor,LED,a buzzer,a button module,and an ESP8266 mod-ule.The smoke concentration data is collected through the smoke sensor and the temperature and humidity data is collected through DHT11,and then set the threshold for smoke concentration and temperature/humidity.Once the detected data is higher than the set threshold,the sound and light alarm is triggered,and the data can be sent to Alibaba Cloud Internet of Things plat-form for display through the Wi-Fi module.System tests have shown that the system can effectively detect the surrounding envi-ronment data,upload the data to the cloud platform,and send an alarm when the data is abnormal,which meets the functional design requirements.
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