Method and device for detecting non-pulse abnormal data in track geometry detection data

A technology for detecting data and detection methods, which is applied in the field of data processing, and can solve problems such as multiple types, fast calculation speed, and difficult outlier processing methods

Active Publication Date: 2017-06-09
CHINA ACADEMY OF RAILWAY SCI CORP LTD +2
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  • Application Information

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Problems solved by technology

However, there are many types of outliers in high-speed railway track geometry detection data, a large amount of data, and fast calculation speed, so it is difficult to directly apply the existing outlier processing methods.

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  • Method and device for detecting non-pulse abnormal data in track geometry detection data
  • Method and device for detecting non-pulse abnormal data in track geometry detection data
  • Method and device for detecting non-pulse abnormal data in track geometry detection data

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] Aiming at the characteristics of the abnormal value of the track geometry detection data, the present invention proposes a complete frame and process of abnormal value diagnosis and filtering method, and at the same time, non-pulse abnormal data, such as gauge drift, too fast change of vehicle speed or too low vehicle speed when entering and leaving the station The resulting invalid data, gauge widening, unilateral gauge waveform straightening, and speci...

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Abstract

The invention provides a detecting method and device for non-pulse abnormal data in track geometry inspection data. The detecting method comprises the steps that high-pass filtering is carried out on collected track geometry inspection data to obtain track geometry irregular data with trend terms removed; running speed probability statistical treatment is carried out on the track geometry irregular data to determine a vehicle in-out station section, and the geometry irregular data of the vehicle in-out station section are set to be zero; a track widened area is determined according to the track gauge value in the track geometry irregular data, and track gauge and direction irregular data of the track widened area are set to be zero; a track gauge straight line section is determined according to the single-side track gauge in the track geometry irregular data, and irregular data of the track gauge straight line section are set to be zero. According to the features of different types of track geometry data and abnormal values of the track geometry, different processing procedures are adopted, non-pulse abnormal data in track geometry detection are filtered away, and reliable data support is provided for track overrunning judgment, track feature parameter calculation and track state judgment.

Description

technical field [0001] The invention relates to data processing technology, in particular to a method and device for detecting non-pulse abnormal data in track geometry detection data. Background technique [0002] Even small-amplitude irregularities will have a greater impact on the safety, stability, comfort, and environmental noise of high-speed vehicles. Therefore, high-speed railways have put forward high smoothness requirements for tracks. Track geometric defects can be detected in time by using the track geometry detection data to ensure the safe and reliable operation of high-speed trains. The track geometry detection system adopts technologies such as laser scanning and image processing. According to the principle of inertial reference, the displacement, acceleration and angular velocity signals are filtered, compensated and synthesized to obtain geometric irregularity parameters such as track gauge, height, track direction and level. The detection accuracy can reac...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 刘金朝王卫东曲建军郭剑峰严广学
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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