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,,、,、、[1]。,,,、、、CCD。,,[2],,,。TITMS320LF2407DSP,,3,。1DSP、、、,1。3,22,1。3,、、,。:7.5cm,25cm,12cm,5.5cm。PWM,PID,。2DSPTMS320LF2407A,DSP,,12(PWM)[3]。E3F-DS30P1,30cm,30°。3I/OPEI/OPE4、I/OPE5I/OPE6。5V,DSP3.3V,DSP。12V。DSP+3.3V,+12V+3.3V。LM7805MAX604。12VLM78055V,5V,MAX6043.3V,2。L298,OUT1,OUT2;OUT3,OUT4;L298IN1IN2DSPIOPE0(4)、IOPE1(3),DSP,,,(,071002):,。TMS320LF2407ADSP,3。CCS,、、,PIDPWM,。,,,,93.33%,。:;;DSP;PID:TP23:A:1674-6236(2010)03-0135-03Automaticobstacle-avoidingcarbasedonDSPZHAOXiao-jun,LIUMeng-zhe,CAOJian-kun,GAOXu-guang(CollegeofElectronicandInformationEngineering,HebeiUniversity,Baoding071002,China)Abstract:Fortherequirementsoftheunmannedoperationonhigh-riskenvironment,asimpleautomaticobstacle-avoidingcarwasdesigned.ThecarwithTMS320LF2407ADSPchipasthecore,usedthreesetsofinfraredsensorstocompletetheobstacledetection.IntheCCSenvironment,itachievedthecarforward,stop,obstacleavoidanceactionwiththePIDalgorithmsandthePWMmethods.Theobstacleavoidingcarachievedtheprecisecontrolofthecar′sspeed.Thedesignhasadvantagesofresponsefast,simplestructureandlowcostetc.Thedesignhasthestabilityperformanceontheindoorenvironment,itisprobabilityofabout93.33%forsuccessfullytoavoidtheobstacles,anditcanreachtheirdestinations.Keywords:obstacleavoidance;infraredsensor;DSP;PID:2009-08-15:200908027:(2005002D);(Y200502):(1967—),,,,。:。120103Mar.2010183Vol.18No.3ElectronicDesignEngineering-135-,OUT1OUT2,L298IN3,IN4DSPIOPE2(2)、IOPE3(1),,OUT3,OUT4,ENAENBDSPIOPE0(PWM3)、IOPE1(PWM4),,3。L2982,、、、、。,2,IN1、IN2、ENA1、0、1,IN3、IN4、ENB0、1、1,;IN1、IN2、ENA1、0、1,IN3、IN4、ENB1、0、1,;IN1、IN2、ENA0、1,1,IN3、IN4、ENB1、0、1,。,。,HD74HC14P(HD74HC14P,),DSPPA3(CAP1)PA4(CAP2),[4],4。3DSPI/OPE4,I/OPE5,I/OPE63,3,111,011,110。010。,1。(),T3,,(、、),,,5。PID,[5-6]。,PID,。。,。PID:,,,PID。,,(ek=0)。6,6,vV,,b′b。2341I/OPE4,I/OPE5,I/OPE6I/OPE4I/OPE5I/OPE6111101/001/0110/100005《》20103-136-6PID4,:1),,25cm,,()。,,30cm;,15cm。2)PIDPWM3,10。PIDPWM,36、7、7;PIDPWM,39、10、9。PIDPWM,,。5,DSPTMS320LF2407,。,,,。(,),、。,,。。:[1],,.DSP[J].,2008(1):37-41.[2].[J].,2005(6):1400-1404.[3],,.DSP[J].,2008(1):51-53.[4].H8/3048F[J].,2003(16):91-92.[5],.PID[J].,2009(6):19-22.[6].PID[J].,2009(1):30-34.,DSPConnXDSP,LTE/4GTensilicaConnXBBE16,LTE()4GSoC()。ConnXBBE1616MAC(),DSP(),:OFDM()、FFT()、FIR()、IIR()。ConnXBBE16,ConnXBBE。、、、、、DTV()SoC。Tensilica20096ConnX(BBE)。ConnXBBE。,TensilicaXtensa,DSP:ConnXBBE16。ConnXBBE1616-MAC、16DSP。8SIMD(),3VLIW(),(128)。ConnXBBE16DSP:;FIR,;,;,de-spreading(16);FFT;、;88x40b()。ConnXBBE16550MHz17GB/s。:16、4FIR、-4FFT。3、FIR2,,2。ConnXBBE16C,。:C,FFT、FIR、IIR,。,ConnXBBE16DSP。ConnXBBE16XtensaLX3,,(、)。:201003108!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!-137-
本文标题:基于DSP的自动避障小车
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