红外热成像在铁路行车安全监控系统中的应用探讨

*尹仕任　周本宽　张春迎(610031),,,,,;;;;TN21;U298.1,,,,,,,,,,[1,2],[3],11.1[4,5],n;nm;:1997-04-21:,1954,*(96-123.54060)325199710JOURNALOFSOUTHWESTJIAOTONGUNIVERSITYVol.32No.5Oct.1997:(),,()1.2:[6]:,,,,:(1),,10km,(2)(),(3)0.7Lm,,(4)(),(5)(6)22.1,[7],,,;,,1,,12.5Lm35Lm814Lm,,,,,,,,1,812Lm,541第5期尹仕任等:红外热成像在铁路行车安全监控系统中的应用探讨,1/Lm(H2O)0.91.141.381.872.73.26.3(CO2)1.41.62.02.74.34.85.215(O3)4.59.614(N2O)4.77.8(CH4)3.27.5(CO)4.82.2[8],,DD=[IK1-K2Sa]1/2(A0S0]1/2[D*]1/2K($fAd)1/2VsVn1/2(1),IK1-K2(K1-K2);Sa(K1-K2);A0;S0(K1-K2);D*(K1-K2);$f;Ad;Vs/Vn;KAdX,Ad=Xf2(2),f(NA)(NA)=D02f(3),D0A0D0(NA),A0=PD204=P2D0(NA)f(4)(2)(4)(1)D=[IK1-K2Sa]1/2[P2D0(NA)S0]1/2[D*]1/2K(X$f)1/2VsVn1/2(5)(5),()()()()150km/h,1km3km:812Lm1030w/sr,D0542西　南　交　通　大　学　学　报　　　　　　　第32卷=76.8mm,f=96mm,S0=0.43;Ad=7mm2,(812Lm)D*=4.31010cmHz1/2w-1,$f=1000Hz,Vs/Vn1.7;K=0.16,3km812LmSa=0.94;(5),D=9.2km,2.3310K,,,2.4150km/h,5m,20,3,,,,3.1,,,:(1);(2);(3);(4);(5);(6);(7),,543第5期尹仕任等:红外热成像在铁路行车安全监控系统中的应用探讨,,,/,3.2::812Lm;:208.5,83.4;:20km,15km;::,22.2Hz,44.4Hz;:,8000r/min;126;:14HgCdTe,50Lm50Lm,12.5Lm;:77K,-;:2cd/m2;:,;MRTD:0.5c/mrad0.1;1.5c/mrad0.753.36T07,,5m,,8095km/h,22D/km0.511.522.533.544.5544西　南　交　通　大　学　学　报　　　　　　　第32卷4,,,,:(1);(2);(3);(4);(5);(6)1..,1996;64(4):29-352..,1996;(4):17-203,..,1997;19(1):42-444..,1996;18(3):5-105,,..,1996;18(3):1-46..,1986;8(4):1-77..:,1982:48-978..:,1995:248-2719..:,1992:251-25410,..:,1988:1-74,103-12911..,1996;25(2):21-2612,,..,1996;64(4):36-3813.().,1996;18(1):9-1214,..,1996;16(6):455-45915..,1996;18(1):19-23ApplicationofInfraredImagingtoMonitorSystemsforDrivingSafetyinRailwaysYinShirenZhouBenkuanZhangChunying(SchoolofEng.Sci.,SouthwestJiaotongUniversity,Chengdu610031,China)AbstractInordertoraisespeedofrailwaytrains,oneoftheissuesishowtoavoidcollisionwithobstaclesonthelinesinpoorvisibilityconditions.Inthispaper,severalmethodsofinfrared(IR)imagingareintroducedandcompared.ThepossibilityforscanningIRimagingtobeemployedinmonitoringsystemsfordrivingsafetyinrailwaysisanalysed,withtheaimofensuringthedrivingsafetyoftrainsattheraisedspeedandunderpoorvisibilityconditions.Keywordsinfraredimaging;drivingsafety;imageidentify;railway;speed-raising545第5期尹仕任等:红外热成像在铁路行车安全监控系统中的应用探讨