铁道标准设计2017，Vol.61Issue(8)：27-31,5.DOI:10.13238/j.issn.1004-2954.2017.08.006
基于近似曲率的铁路既有线纵断面分段算法
The Segmentation of Vertical Alignment of Existing Railway Lines Based on Approximate Curvature
侯广东 1陈文2
作者信息
- 1. 中国铁路设计集团有限公司,天津 300251
- 2. 江西省水利规划设计研究院,南昌 330029
- 折叠
摘要
Abstract
Precise segmentation of vertical alignment is the foundation of follow-up vertical alignment optimal adjustment. Due to the low efficiency and accuracy of the existing methods to achieve automatic vertical alignment segmentation, an algorithm to fulfill automatic segmentation is studied. Firstly, on the basis of the analysis of the existing methods, this paper presents an automatic segmentation method based on approximate curvature of measuring points. In view of the fact that arc diameter ratio is too small to fit the circular curve exactly, Radius Immobilization Least-square Circle Fitting Method ( RILCFM ) is employed to effectively and precisely calculate the coordinates of the center of the rail circle. The results of experiments show that RILCFM can identify automatically the locations of feature points with higher accuracy.关键词
铁路既有线/纵断面分段/近似曲率/正交最小二乘法/圆心定位Key words
Existing railway/Segmentation of vertical alignment/Approximate curvature/Orthogonal Least Squares/Center location分类
交通工程引用本文复制引用
侯广东,陈文..基于近似曲率的铁路既有线纵断面分段算法[J].铁道标准设计,2017,61(8):27-31,5.
