基于扫描断面的磁浮轨道限界检测

Clearance detection of maglev track based on scanning section

本文介绍了基于扫描仪、IMU等多种传感器的性能,设计了一套磁浮移动扫描集成系统,完成了硬件搭建与各个传感器的数据通讯与采集。结合地铁限界标准,给出以轨道中轴线为中心的磁浮轨道坐标系与其限界轮廓的定义,并根据改进的任意多边形水平射线法,判断点是否在凹多边形内,且进行欧氏聚类处理,完成限界检测,给出侵限点集与最近距离,最后由惯导系统提供的坐标进行平曲线里程定位给出侵限里程。在上海同济大学嘉定校区的磁浮试验线现场测试,验证了该方法的可行性。

Based on the performance of scanner,IMU and other sensors,a set of integrated maglev mobile scanning system is designed, which completes the hardware construction, data communication and acquisition of each sensor. Combined with the metro gauge standard,the definition of the maglev orbit coordinate system and its gauge contour centered on the central axis of the track is given. According to the improved arbitrary polygon horizontal ray method,whether the point is in the concave polygon is judged,and the Euclidean clustering processing is carried out to complete the gauge detection. The set of the transgression limit point and the nearest distance are determined. Finally,the plane curve mileage is carried out by the coordinates provided by the inertial navigation system,the location gives the mileage of invasion limit. The feasibility of the method is verified by the field test on the Maglev Test Line in Jiading Campus of Tongji University in Shanghai.