四通道故障报警仪的设计

paper,MQ-4 gas sensor is selected as the signal collection tool of combustible gas.The collected analog voltage can be transformed into the function of digital signal byMCU.After the digital signal is obtained,the internal function of MCU can processthese signals in data aspect.If these data are already possible for the machine to bear.To the greatest extent,the buzzer will send out alarm signals.If it does not reach thezero point without harm and danger,there will be no signal.If people want to viewthe data by themselves,they can actively call out the information according to thealarm.