Dynamic measurement method for positioning point of contact network positioner

Abstract

The invention discloses a dynamic measurement method for a positioning point of a contact network positioner, and the method employs a non-contact detection method to continuously scan and measure a contact line and the positioner through a high-precision laser radar, and can achieve the quick and accurate measurement results of a positive positioning point and a non-supporting positioning point at the same time. According to the method, a method of combining three-dimensional point cloud data and a specific mounting structure of the locator is adopted, a feature model of the locator is extracted, a training set is further expanded to a curve, a tunnel, a bifurcation line, a platform uplink and a platform downlink at different time points in different weather, and the rapid and automatic identification adaptability and accuracy of the locator are remarkably improved; according to the method, the process and method from automatic identification and automatic positioning to automatic point taking for calculation of guide height pull-out are adopted for positioning point measurement, and the method has the advantages of being accurate in positioning point dynamic identification and high in measurement precision.

Description

technical field [0001] The invention relates to the technical field of catenary detection, in particular to a dynamic measurement method for a positioning point of a catenary locator. Background technique [0002] The locator is a key component of the catenary. It is very important for the train to run at high speed and speed up safely. The position where the locator fixes the contact line is called the positioning point. The guide height and pull-out value of the positioning point are the key parameters of the catenary line. It is necessary to inspect and measure the catenary positioning points during line acceptance and regular inspection. At present, the inspection status of the positioning points by the relevant railway departments is mostly completed by laser measurement, and the branch and non-support points are measured separately. This method is low in efficiency, high in work intensity, and difficult to operate at night. Therefore, there is an urgent need for a fas...

AI Technical Summary

Problems solved by technology

At present, the inspection status of the positioning points by the relevant railway departments is mostly completed by laser measurement, and the work branch and non-support points are measured separately. This method is inefficient, high in work intensity, and difficult to operate at night.

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