站场调车信号识别系统研究

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1、西南交通大学硕士学位论文站场调车信号识别系统研究姓名：王哲申请学位级别：硕士专业：电力系统及其自动化指导教师：郭世明20070501西南交通大学硕士研究生学位论文第lI页AbstractInordertocopewirhshuntingaccidentsbecauseofhumanfactorsandimprovethesecurityofshuntingoperation,thepaperconstructsashuntingsafetyassistantsystemforclassificationyardbas

2、edoncomputervisionandimageprocessing，whichisusedtoguidedriverstocontrollocomotivecorrectly,andavoidshuntingaccidents，suchasblue—lightrunning，hustlingrailwayswitchandcollidingearthretaining．Thecharacteristicsofrailwayshuntingoperationareanalysedcombinedwithpersp

3、ectiveprinciples．Theobstacledetectionalgorithmbased0nN·dividedsub-samplingisproposed．Inaddition,thepaperresearchsthedistanceestimationbetweenlocomotiveandtargetsbyedgeextractionandHoughtransform．．Tbeprecisionofthisalgorithmcangainperformancesatisfactorily．Apmxi

4、cularapplicationofimagestabilizationisconcernedinthepaper．InordertOverifyitsvalidity,ithasbeentestedonavarietyofcolorvideo-sequencestakenfromthepointofviewoftrainsmovingalongrailwaystracks．Inthepaperageneralsystemforreal-timedetectionandrecognitionoftraffcsigna

5、lsisproposed．111ekeys脚isat：a．inel'ainstalled．onamovingvehicle．11lesoftwaresystemconsistsofthreemainmodules：detection,tracking,sample-basedclassificationandrecognition．Additionalsensorinformation,suchasvehicledata,GPS．andenhanceddigitalmapsafeusedtoenIl暑mcethepe

6、rformanceandrobustnessofthesystem．Sincethedetectionandrecognitionstepisthemostcriticalone，adetectionandrecognitionalgorithmbased011shapeandcolorfeaturesisproposed．Firstly,it12lakesUSeoftheshapefeaturetolocatethesignallamps，andthenjudgestheirstatusatHIScolorspac

7、ebythecolors．Thecolorsystem,withahighdynamicrangecameraandpreciselocationinformationofthevehicleandthesearchedtrafficsignals,offersvaluableandreliableheIpindirectingthedriver’SattentiontomafficsignalsandthusCanreduceblue-lightrunningaccidents．Keywords：shuntingo

8、peration,imagestabilization,signaldetectionandrecognition,distanceestimation,Houghtransform西南交通大学硕士研究生学位论文第1页1．1课题背景和意义第一章绪论铁路调车工作是完成铁路运输生产任务的重要组成部分，是确保实现列车编组计划、列车运行图，加速车辆周转