Identification Method of Existing Railway Horizontal Alignment Based on Bogie Heading Angle
The identification of track horizontal alignment is the basis of solving track irregularity.Aiming at the actual needs of the external dynamic track inspection instrument,a railway plane align-ment identification method based on the bogie heading angle is proposed.The line element type and the number of feature points of each measuring point are automatically identified by the piecewise fitting cri-terion.Then the optimization model of plane alignment feature points based on bogie heading angle is established.Finally,combined with the cloud model to improve the search strategy of the traditional genetic algorithm,the cloud genetic algorithm is proposed to realize the accurate identification of the railway plane alignment.The research shows that the identification deviation of the characteristic points of the plane line curve is less than 4 m,and the accuracy of the linear identification is more than 97％,which meets the accuracy requirements of the external dynamic track inspection instrument for the track irregularity solution.
heading anglecurve feature point recognitiontotal least squarescloud modelgenetic algorithm
万方数据
维普
