基于SPCE061A的天然气智能报警系统设计

SPCE061A,,,(716000):SPCE061A,,,,,,,,,:SPCE061A;MT8888;;DTMF:TP313:B:10042373X(2009)062162203DesignofNaturalGasIntelligentAlarmingSystemBasedonSPCE061ALIUWenxia,ZHANFWeihu,LINa,YANGHuicai(CollegeofPhysicsandElectronicInformation,YananUniversity,Yanan,716000,China)Abstract:AnaturalgasalarmingsystembasedonPSTNisdesigned,usingSPCE061Asinglechipmicrocomputerascontrolunit,alarmingcertainabnormalphenomenathroughspeakerortelephone.Thesystempossessessuchfunctionsasmonitoringnaturalgasleakageallthetime,displayingthedensityofnaturalgasatthesceneallthetime,alarmingwithspeechandturningoffnaturalgasandexhaustornotetc.Anditrealizesmonitoringautomatically,alarmingautomaticallyanddealingwiththeabnormalphenomenaautomat2icallyinthewholeprocess.Itprovesthatthesystemisreliable,flexibleandeasytoextend.Keywords:SPCE061A;MT8888;telephone2alarming;DTMF:2008209216,,,,;,,,,,,SPCE061A,,:;;;,,,,,,,3min,,;,,,,,,14,1,25[1,2]1.1,,;,MQ24,,,,261:SPCE061AMQ24,15V,RL,-10+50,-20+70,30010000ppmMQ24,,,5000ppm[3]11.2SPCE061ASPCE061A16,2KwordSRAM32KwordFLASHROM,32/,216/,14,,1.3,,31.3.1MT8888DTMFMitelMT8888DTMF/,,MT8888DTMFMT88882MT8888DTMF[4]1.3.23IOB0,;IOB0,1.3.3,,IOB2,,1.44LED,2MT888831.5LM386,4[5]41.6,,,;DAC0832AIDEM(),,,;,,DAC0832,36120096293þü,,DAC0832SN75452AC220V,TPL,[6]22.1,,,,552.2,62.3MT88882.3.1MT8888MT8888100msMT8888SR;CRA=0000B;CRA=0000B;CRA=1000B;CRB=0000B;SR2.3.2DTMFDTMF(),MT8888DTMF,,RSR,SRb1=1,,2.3.3,,,MT8888,CRA=1110B,CRB=0001B,MT8888(CALL),TONEOUT,,5sIRQ/CP,1792,10241791,2561023,25563,SPCE061A,,,[7],,,,,,,,,[8],,[1].[M].:,2003.[2].[M].:,1997.[3],.[M].:,2005.[4],.[J].,2001,8(4):23227.[5],.[M].:,2005.[6].[J].,2007,31(1):1242126.[7].[M].:,1997.[8],.[M].:,2004.461:SPCE061A