铁道信号自动控制专业教学资源库CBTC--ATP(2)安徽交通职业技术学院
TrainpositioningOFATP
WhenthetrainpassesthroughtwoconsecutiveA-TAGswithcalibrationfunction,thedistancebetweenthetwoismeasuredbythespeedsensorandsendsittoVOBC.VOBCcomparesthemeasuredvaluewiththedistancevaluepredefinedbetweenthebalisesintheon-boarddatabase.TrainpositioningofATP
Ifthedifferenceiswithintheallowableerrorrange,thetrainpositionisdetermined.Whenthetrainisbetweentwobalises,ThetrainpositioningisdeterminedbyVOBCthroughthespeedsensor.TrainpositioningofATP
ThevalueofthespeedsensortransferstoVOBC,andthenVOBCinformsthetrainposition(includingtheheadandendpositions)totheMAU.AftertheMAUreceived,itcalculatesthepossiblepositionofthetrain.TrainpositioningofATP
Theheadpositionofthetrainreportedbythetrain,andthepositionuncertaintyandtheestimatedrunningdistance,whichareequaltothepossiblepositionoftheheadofthetrain.Theendpositionofthetrainreportedbythetrain,andthepositionuncertaintyandthebackwarddistance,whichareequaltothepossiblepositionoftheendofthetrain.TrainpositioningofATP
ThetrainpositiondeterminedbyMAUisjustlikeanobstacletoothertrains.TrainpositioningofATP
教学反思PARTFIVEThankyou!