铁路线路里程归一化处理算法研究

Research on Normalization Algorithm of Railway Mileage

铁路线路上的位置信息由里程标标定,由于多里程标系和断链等原因,即使在同一正线线路号下的里程标也可能不连续,导致里程数值不能直接进行加减计算。本文根据《铁路线路里程断链设置和管理规定》,对相关概念进行了介绍,对影响里程标计算的各个因素进行了全面分析,给出了铁路线路里程归一化处理算法。经实际应用表明,其数据配置简单直观,能够封装为工具类,为应用程序提供原始里程标与归一化里程值的双向转换接口,实现了里程标处理与业务逻辑的分离;同时应用程序能够使用归一化里程值进行铁路轨道区段长度、轨旁设备位置、列车位置、临时限速区域等信息的计算。

The location data of a railway line is demarcated by mileage.Because multi-mileage system and broken chain may cause discontinuous mileages of a mainline,it would disable direct calculation of the mileages by addition and subtraction.According to the"No.312 Document of China Railway Corporation-Regulations on Broken Chain Setting and Management of Railway Line Mileage",related concepts are explained in detail,the factors affecting the calculation of line mileage are analyzed thoroughly,and the normalization algorithm of railway line mileage is derived.It is shown in actual application that the data configuration of the algorithm is simple and can be encapsulated as a utility class to provide bi-directional conversion interfaces between original mileage value and normalized mileage value and the separation of mileage processing and business logics is realized.Meanwhile?it can be used to calculate the length of the railway track section,the location of wayside equipment,train position and scope of temporary speed limit area.