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Snake state recognition method based on wheel set transverse movement amount

A technology of state recognition and lateral movement, applied in neural learning methods, character and pattern recognition, instruments, etc., can solve the problems of unrecognizable snaking transition state, abnormal small snaking, etc.

Active Publication Date: 2022-08-05
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the above-mentioned shortcomings in the prior art, the method for identifying the snaking state based on the lateral displacement of the wheel set provided by the present invention solves the problem that the existing snaking state monitoring cannot identify the transitional state before the snaking instability——abnormal small snaking

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  • Snake state recognition method based on wheel set transverse movement amount
  • Snake state recognition method based on wheel set transverse movement amount
  • Snake state recognition method based on wheel set transverse movement amount

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Embodiment Construction

[0044] The specific embodiments of the present invention are described below to facilitate those skilled in the art to understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes Such changes are obvious within the spirit and scope of the present invention as defined and determined by the appended claims, and all inventions and creations utilizing the inventive concept are within the scope of protection.

[0045] The embodiment of the present invention provides a method for identifying a meandering state based on the traverse amount of the wheelset, such as figure 1 shown, including the following steps:

[0046] S1. Build a vehicle operation data set;

[0047]S2. Analyze and test the wheelset traverse signal in the vehicle operation data set to obtain the classification result of the meandering state; wherein, the classification result of ...

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Abstract

The invention, which belongs to the technical field of train operation monitoring, discloses a snaking state identification method based on the transverse movement amount of a wheel set, comprising the following steps: S1, constructing a vehicle operation data set; s2, wheel set transverse movement signals in the vehicle operation data set are analyzed and checked, and a snaking state classification result is obtained; s3, training a snaking state recognition model based on a corresponding relation among a sensor measuring point signal, a wheel set transverse movement signal and a snaking state classification result in the vehicle operation data set; s4, in the train running process, actual sensor measuring point signals are input into the snaking state recognition model, and a snaking state recognition result is obtained.

Description

technical field [0001] The invention belongs to the technical field of high-speed train operation monitoring, and in particular relates to a meandering state identification method based on the lateral displacement of a wheelset. Background technique [0002] In the speed-up design of high-speed trains, there is inherent meandering motion of the wheelset. When the running speed increases and exceeds the nonlinear critical speed of the current vehicle system meandering bifurcation state, the meandering motion may evolve into an abnormal meandering motion. Identifying the abnormal meandering motion of the vehicle system can avoid major operational accidents such as derailment and improve the safety of high-speed trains. In addition, the monitoring method needs to ensure its strong reliability, high accuracy, fast response, and low construction cost. The small-amplitude limit cycle vibration is different from the large-scale limit-cycle vibration of the snake-like instability. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F2218/08G06F2218/12G06F18/23213Y02T10/40
Inventor 杨宜坤宁静宁云志吴国超李艳萍陈春俊
Owner SOUTHWEST JIAOTONG UNIV