Method for efficiently measuring three-dimensional coordinates of track based on track precise control net

Abstract

The invention belongs to a track parameter detection technology, and in particular relates to a method for efficiently measuring three-dimensional coordinates of a track based on a track precise control net, which comprises the steps of: setting a measuring interval on a track line, setting control pile points of the precise control net at two sides of the track line, installing an intelligent track detection vehicle and a track satellite vehicle on the track, wherein an operation frame of the intelligent track detection vehicle is provided with an automatic leveling platform and a total-station type electronic distance measuring device, and the track satellite vehicle is provided with a measuring prism; in each measuring interval, collimating the control pile points of the precise control net arranged at two sides of the track line by using an automatic collimating function of the total-station type electronic distance measuring device, statically intersecting and measuring three-dimensional coordinates of a measuring point of the total-station type electronic distance measuring device and coordinates of a starting point and an ending point of the track satellite vehicle in the measuring interval; and between the coordinates of the starting point and the ending point of the track satellite vehicle, tracking and measuring the track satellite vehicle by using the total-station type electronic distance measuring device and dynamically tracking the three-dimensional coordinates of the track line. The invention realizes measuring point option, eliminates a track control blind region, and has high operation efficiency by adopting a static intersection and dynamic tracking and measuring manner.

Description

technical field [0001] The invention relates to a track parameter detection technology, in particular to a high-efficiency track three-dimensional coordinate measurement method based on a track precision control network. Background technique [0002] With the construction and operation of large-scale passenger dedicated lines in my country, the trains run fast and have high requirements for safety, stability, and punctuality. High-quality maintenance and repairs must be carried out to ensure the safety and quality of passenger dedicated lines. This requires the establishment of stricter operating standards, an updated maintenance and repair model, a high-precision precision measurement and control network, and research on precision detection technology and equipment for full geometric parameters of the track. [0003] Aiming at the focus problem of speed-up line maintenance, research on the application of absolute geodetic coordinates in existing track maintenance has been c...

AI Technical Summary

Problems solved by technology

This kind of measurement mode is to set up a total station on the line or on the shoulder of the road to observe the prism of the trolley to determine the coordinates of the line. It has high technical requirements for the surveyors, and the measuring trolley uses fixed-point static measurement. There is a big gap between the operating efficiency of dozens of measuring points and the actual application requirements on site