3、wn qualityoflife andlivingenvironment seriouslymoreandmore,soitiswidely used innaturalgas,coalgas bringsgreatconveniencetopeople, atthesametime alsobring potentialdanger.Inrecentyears,moreandmorepeople usingnaturalgasasfuelformore security,leadingtothe gas fuel gas cause
4、d by negligence, the family ofgaspoisoningand explosion intheminority,so one can timelyandaccurately isveryimportantto checkthegas leakagealarmdevice.Thisdesignsthe coredeviceof gassensorbasedon singlechipmicrocomputer and thecombustiblegasleakage alarmdesign,cooperatewi
5、thother devicescanachieve theindoortemperature displayand alarmfunctions. Thedesignof MCUasthecontrol device, the gassensorfor detection of combustiblegas. Thealarm ismainlycomposedofsinglechipcomputer controlsystemcircuit,analogtemperaturesignal acquisitionand signalcon
6、versioncircuit and gas, soundandlightalarmcircuit,digitaldisplay circuitcomposedof agasleak.The reasonabledesign, lowprice,simple circuit, hassomepracticalvalue. Thesoftwaredesignof paper betweenthecontrolsystem circuitandother circuitmodule interfaceconnectionmode andsy