红外光通信装置的设计-吴守霞[1]

2015－01－06201515K－0111979。730050LM386。LM386。DS18B20STC12C5A60S2LCD。TN929．1A1000－0682201506－0097－03DesignofinfraredlightcommunicationdeviceWUShouxiaPENGLinruCollegeofElectronicsandInformationEngineeringLanzhouInstituteofTechnologyLanzhou730050ChinaAbstractThedesignisbasedonLM386andinfraredtransceiveronthetubeasthecorecompo-nentsopticaldirectionaltransmissionofvoicesignalsthroughinfraredandhasatemperatureinreal－timedetection．InthedesigntheaudiosignalpassesthroughthetransmissioncircuitintolightintensitychangeoftheinfraredlightsignalthereceivingcircuitreceivestheinfraredlighttheLM386audioam-plifierintegratedprocessingbackintosoundthroughthespeaker．TheDS18B20temperatureinformationgatheringafterthemicrocontrollerSTC12C5A60S2dataencodingtransmitterandreceivercircuitre-ceivesinfraredlightsignalsafterdecodingthemicrocontrollerviatheLCDdisplayreal－timetempera-ture．Keywordsinfraredlightcommunicationtransmitterreceiving0、、。300～3400Hz800Hz8Ω0．4V。11．1。、、。。。LM386。。LM386LM386。·79·20156。。1．2。10μ、12μ、14μ30°、45°、60°。、。。1．312LM3863STC12C5A60S24DS18B205。1．41。122．1、、、。。。。。2．2LM386。LM386200。LM3865。2、3。3LM386200。1、873。232．3DS18B20STC12C5A60S238kHz3∶1。·89·20156LCD1602。NEC。9ms、4．5ms560μs、560μs“0”560μs、1．68ms“1”560μs。9ms4．5ms8888。4。433．1。。。5。53．2LM386。LM3861810μF200。7100pF、。6。644．112m。2300～3400Hz2m。3800HzVPP8Ω1。40V2。1800Hz8ΩVPP0．260．280．280．290．280．300．27Vrms0．580．720．670．800．710．750．7420V12345/Vrms0．760．720．80．820．784．2104·99·20156639BDY9－BG。DCS。BDY9－BGDCS。4BDY9－BG10。。1．M．1996116－117．2．M．201031－32．3．J．20069141－142．4．DDF1200J．2005631－34．5．D．2006．6．J．20083434－36．7．ＲEXAJ．201325342－342．8．FCCBD15J．1994349－53．9．J．2003494－96．10．J．2001311134－35．99。300～3400Hz2m。800Hz8Ω0．4V。0V0．1V。5LM386LM386。、、、。1．STM32J．2014325493－497．2．PFMJ．20150459－64．3．J．2012568－79．4．J．2012151－54．·401·20156