红外计数器的设计

0。,、、、、、、、、。。。1、--、、。、、、。、、。。;,,;。。。,,,,。,,。,,DesignofInfraredCounterYangHanxiangZhangQi(341000)(SchoolofPhysicsandElectronicInformationScience,GannanTeachers'College,JiangxiGanzhou341000)。。。,。8TP368.4B1671-4792-(2009)7-0187-04Abstract:Countersarewidelyusedinourdailylifeandgraduallybecomeanecessity.Hereweintroducethecurrentstatusandal-sothefutureofinfraredcounters,thenpresentadesignontopofdigitalcircuit.Andtheworkingtheoryandconstructaredescribedandimplementationofeachmoduleisdiscussedhere.Strictlogicalreasoningandrealexperimentshaveapprovedeachstepiscorrectintheprocesswhichhavefulfilledthedesignspecifications.Tosummarize,infraredcounterscansolveincrease/decreaseproblemincount-ing,suchasautomaticcountingforindustrialpipeliningandtraffic.Therefore,thestudyofinfraredcounterandexpandingitsapplica-tionsmakeverypracticalsenseinaboveterms.Keywords:AutomaticCountingInfraredDetection8-bitDigitalTube1872009.7,。22.1()()0～99。2.2LED220V5V、、。3、(U1-U8)。。。[1]。44.14.1.17805IC7878055V、。、。、3V78053-13V、、。4.1.2220V12V、C114V78055V、(U1-U8)。4.24.2.1。。、、、、。4.2.2。9014。1884.3()Q2C20.01uFQ1U701100。Q1C10.01uFQ29014U501011。Q1C2U701100。()10[2]。4.44.4.1CD40110CD40110、、、LED。LEDCD40110。CD40110QCOCPu(9)()。CD40110、、、。VCC、VSSa-gCPUCPDMRQCO10QBO10/CT/CT=0/CT=1/LE/LE=0/LE=1[3]。4.4.2LEDLED。LED。LED。BCD(BinaryCodedDecimal)。。[4]。4.4.3CD40110BCDLED。CD40110、、、LED。CRCR=1CP(CPUCPD)QCOQBO/CT/CT=0/CT=1。LEDCD40110。5,,,,。、(U1-U8)。。65V()。1892009.7①②③LEDf。①,②C1、C2,,③LEDfLED。7。0～99。5～6V1.5A。()()0～99。。8。1～99。、。、。[1].、、[M].2003.[2].[M].2002.[3].[M].2002.[4].[M].2003.1950—。190