Method and device for determining dirty state of ballast bed, equipment and storage medium

Abstract

The invention provides a method and a device for determining a dirty state of a ballast bed, equipment and a storage medium. The method comprises the following steps: acquiring a radar echo signal corresponding to the ballast bed of a target mileage; according to the radar echo signal, determining a representation value sequence of the dirty state of the ballast bed; according to the characterization value sequence, a selected characterization value corresponding to the target mileage is determined, and the selected characterization value is used for representing the characterization value sequence of the target mileage; associating the actual contamination rate corresponding to the position point of the selected characterization value in the target mileage with the selected characterization value to obtain a ballast bed contamination model; and according to the characterization value sequence of the track bed smudginess state and the track bed smudginess model, determining the track bed smudginess state corresponding to the track bed of the target mileage. According to the method, the dirty state of the ballast bed can be determined with high accuracy, and the decision-making accuracy during ballast bed maintenance is improved.

Description

technical field [0001] The invention relates to the field of track detection, in particular to a method, device, equipment and storage medium for determining the dirty state of a ballast bed. Background technique [0002] The crushed stone bed is an important structural form of the railway track, and the state of the crushed stone bed affects the transportation speed, safety and comfort of the railway line. With the increase of the service time of the crushed stone ballast bed, the ballast is broken and pulverized, the dirt of the ballast bed continues to accumulate, and the state of the ballast bed continues to deteriorate. Due to the lack of fast and accurate ballast bed contamination detection methods, according to the current "Ordinary Speed ​​Railway Line Repair Rules", the main basis for determining the overhaul cycle of gravel ballast bed is the total weight of the line, and according to whether the unclean rate is greater than 25% ( Sampling at 100mm down from the b...

AI Technical Summary

Problems solved by technology

However, the dirtiness of the track bed is actually related to many factors such as the environment of the line (such as wind and sand, rainy, etc.), the material of the subgrade soil, the compactness of the subgrade, and the train load (the cumulative effect of the train load is the total weight of the train). Therefore, a simple The state of the track bed cannot be reflected by the total weight

[0004] The overhaul decisi

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