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High-speed railway track segmented measurement data smooth connecting method

A technology for segmented measurement and high-speed railways, which is used in tracks, measuring instruments, track maintenance, etc.

Inactive Publication Date: 2015-10-21
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a smooth connection method for track segment measurement data in a track geometric state measuring instrument, a track inspection instrument, and a standard track inspection field, so as to overcome the defects of the existing railway track measurement data processing algorithm and provide higher precision , better track smoothness data processing algorithm

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  • High-speed railway track segmented measurement data smooth connecting method
  • High-speed railway track segmented measurement data smooth connecting method

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Embodiment Construction

[0027] During the track measurement of high-speed railway, according to the characteristics of high-speed railway CPⅢ control network arranged in pairs at intervals of 50-70m, in order to ensure the measurement accuracy of the three-dimensional precise measurement system of the track, the track geometric state measuring instrument or track inspection instrument needs to carry out the whole station at intervals The instrument station is set up, and the track detected by the adjacent station requires 6 to 10 sleepers or an overlapping area of ​​a section of the line. When the measurement data of the station are obtained, the smooth connection method can be used for processing. The present invention will be further described now in conjunction with accompanying drawing. However, it should be emphasized that the following embodiments are only exemplary and not intended to limit the scope and application of the present invention.

[0028] When the number of stations n>1, that is, ...

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Abstract

The invention discloses a high-speed railway track segmented measurement data smooth connecting method. In the high-speed railway track measurement process, a track geometry measuring instrument carries out positioning and orientation to total stations according to CPIII networks, then a dolly prism is measured, and data of a track gauge and a horizon sensor are integrated to obtain the coordinate and elevation of each track measuring point. The CPIII networks are arranged in pair, and the distance between any two adjacent pairs of the CPIII networks is in a range of 50m to 70m, and the total stations are arranged at an interval being in a range of 50m to 70m during the track measurement process. In order to guarantee the continuity of the track measuring points, the total stations in adjacent measuring stations need to measure track points of 6-10 sleepers in an overlapped, and the measuring results of each track point in two times are not consistent. In order to eliminate the discrepancy, the track measurement data smooth connecting method is provided to adjust the measuring results of the measured track points in each measuring station comprising the overlap region, the smooth connection of coordinate and elevation data, of track measuring points, which are measured during the pavement, maintenance and detection processes of the high-speed railway track in a segmented manner is achieved, and the precision of the measuring results is improved.

Description

technical field [0001] The invention relates to the technical field of (high-speed) railway track precision measurement, in particular to a method for smooth connection of track measuring point coordinate elevation data measured in sections in a track geometric state measuring instrument and a standard track inspection field in the field of high-speed railway track paving, maintenance and detection . Background technique [0002] The track three-dimensional precision measurement system used in track static inspection is based on the track control network (CPⅢ), using a total station with automatic tracking, automatic sighting and automatic measurement, and a combination of track inspection trolleys with integrated gauge and tilt sensors Or use the total station to cooperate with the "orbit checker" with gyro orientation to collect the coordinate elevation data of orbit points to obtain the inner and outer geometric parameters of the orbit and evaluate the orbit short wave (1...

Claims

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Application Information

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IPC IPC(8): E01B35/02
CPCE01B35/02
Inventor 岑敏仪李阳腾龙李志林马国治
Owner SOUTHWEST JIAOTONG UNIV
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