A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for measuring position of track
The invention relates to a method for measuring the position of a track by means of a track-measuring vehicle (7) that can be driven on the track, in which the track-measuring vehicle (7) that can be driven on the track, a GPS antenna (8) and an RTK-GPS receiver (11) that communicates with an RTK-KD, at least one wheel (10) of the track-measuring vehicle (7) being pressed on the rail (4). The aim of the invention is to improve the method for measuring the track position, taking into account boundary conditions, such as a limited position, a limited point and a maximum permissible track position correction, in order to avoid the disadvantage of drifting of an inertial measurement system during long-term measurement travel and the merely relative information of the track position. The position of the GPS antenna (8) relative to the reference axis of the track (4, 10) is determined by means of a compensation scanner (6) and a computing unit (13), and the measured GPS coordinates converted into rectangular coordinates (Pi (xi, yi, zi)) are recorded by the computing unit (13) as a spatial curve (3) from which a position image (1) and a longitudinal image (2) are formed, a target curvature image (ksoll) is calculated from the position image, and the target curvature image (ksoll) is calculated from the longitudinal image (2). A target longitudinal inclination image (Nsoll) is calculated from the longitudinal image, and an inertial system (INS) is provided on the measuring vehicle (7), by means of which a correction space curve of the same road section is created, recorded by the calculation unit (13) and used as a correction value for conversion into GPS coordinates of rectangular coordinates (Pi (xi, yi, zi)).
本发明涉及一种用于通过能在轨道上行驶的轨道测量车(7)测量轨道位置的方法，其中，通过能在轨道上行驶的轨道测量车(7)、GPS天线(8)和与RTK校正数据服务(RTK‑KD)通信的RTK‑GPS接收器(11)进行测量行驶，其中，轨道测量车(7)的至少一个车轮(10)压在铁轨(4)上。为了在考虑边界条件，如受限位置、受限点和最大允许的轨道位置修正的情况下改进用于测量轨道位置的方法，以避免惯性测量系统在长的测量行驶中的漂移的缺点和轨道位置的仅仅是相对的信息，借助补偿扫描器(6)和计算单元(13)确定GPS天线(8)相对于轨道(4,10)的参考轴线的位置，并将测得的换算为直角坐标(Pi(xi,yi,zi))的GPS坐标通过计算单元(13)记录为空间曲线(3)，由该空间曲线形成位置图像(1)和纵向图像(2)，由位置图像计算目标曲率图像(ksoll)，由纵向图像计算目标纵向倾斜度图像(Nsoll)，并在测量车(7)上设置惯性系统(INS)，相同路段的修正空间曲线通过该惯性系统创建、通过计算单元(13)记录并作为修正值用于转换为直角坐标(Pi(xi,yi,zi))的GPS坐标。
Method for measuring position of track
The invention relates to a method for measuring the position of a track by means of a track-measuring vehicle (7) that can be driven on the track, in which the track-measuring vehicle (7) that can be driven on the track, a GPS antenna (8) and an RTK-GPS receiver (11) that communicates with an RTK-KD, at least one wheel (10) of the track-measuring vehicle (7) being pressed on the rail (4). The aim of the invention is to improve the method for measuring the track position, taking into account boundary conditions, such as a limited position, a limited point and a maximum permissible track position correction, in order to avoid the disadvantage of drifting of an inertial measurement system during long-term measurement travel and the merely relative information of the track position. The position of the GPS antenna (8) relative to the reference axis of the track (4, 10) is determined by means of a compensation scanner (6) and a computing unit (13), and the measured GPS coordinates converted into rectangular coordinates (Pi (xi, yi, zi)) are recorded by the computing unit (13) as a spatial curve (3) from which a position image (1) and a longitudinal image (2) are formed, a target curvature image (ksoll) is calculated from the position image, and the target curvature image (ksoll) is calculated from the longitudinal image (2). A target longitudinal inclination image (Nsoll) is calculated from the longitudinal image, and an inertial system (INS) is provided on the measuring vehicle (7), by means of which a correction space curve of the same road section is created, recorded by the calculation unit (13) and used as a correction value for conversion into GPS coordinates of rectangular coordinates (Pi (xi, yi, zi)).
本发明涉及一种用于通过能在轨道上行驶的轨道测量车(7)测量轨道位置的方法，其中，通过能在轨道上行驶的轨道测量车(7)、GPS天线(8)和与RTK校正数据服务(RTK‑KD)通信的RTK‑GPS接收器(11)进行测量行驶，其中，轨道测量车(7)的至少一个车轮(10)压在铁轨(4)上。为了在考虑边界条件，如受限位置、受限点和最大允许的轨道位置修正的情况下改进用于测量轨道位置的方法，以避免惯性测量系统在长的测量行驶中的漂移的缺点和轨道位置的仅仅是相对的信息，借助补偿扫描器(6)和计算单元(13)确定GPS天线(8)相对于轨道(4,10)的参考轴线的位置，并将测得的换算为直角坐标(Pi(xi,yi,zi))的GPS坐标通过计算单元(13)记录为空间曲线(3)，由该空间曲线形成位置图像(1)和纵向图像(2)，由位置图像计算目标曲率图像(ksoll)，由纵向图像计算目标纵向倾斜度图像(Nsoll)，并在测量车(7)上设置惯性系统(INS)，相同路段的修正空间曲线通过该惯性系统创建、通过计算单元(13)记录并作为修正值用于转换为直角坐标(Pi(xi,yi,zi))的GPS坐标。
Method for measuring position of track
用于测量轨道位置的方法
LICHTBERGER BERNHARD (author)
2023-03-07
Patent
Electronic Resource
Chinese
Track Maintenance Machine Having A Track Position Measuring System
| European Patent Office | 2019
Track maintenance machine having a track position measuring system
| European Patent Office | 2023
| European Patent Office | 2021