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Method, device and system for monitoring and predicting track irregularity of maglev train

A technology for track irregularities and maglev trains, which is applied to railway vehicle shape measuring devices, transportation and packaging, and railway car body parts, etc. problem, to achieve the effect of ensuring safety

Active Publication Date: 2019-09-27
BEIJING ENTERPRISES HLDG MAGLEV TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The track irregularity is the main source of the vibration of the maglev train. Serious track irregularity will not only cause the violent vibration of the maglev train, but also increase the force between the track and the maglev train, and even cause the maglev train to directly collide with the track. endanger driving safety

Method used

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  • Method, device and system for monitoring and predicting track irregularity of maglev train
  • Method, device and system for monitoring and predicting track irregularity of maglev train
  • Method, device and system for monitoring and predicting track irregularity of maglev train

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Embodiment 1

[0098] Figure 12 It is a schematic flow chart of the track irregularity monitoring method for a maglev train provided in Embodiment 1 of the present invention, as Figure 12 As shown, the method includes the following steps:

[0099] S121. The positioning speed measuring device monitors the first running state data of the maglev train running on the actual track, and simultaneously the levitation performance data monitoring device monitors the first levitation performance data of track irregularities when the maglev train is running on the actual track:

[0100] It should be noted that, in the embodiment of the present invention, the actual track includes track irregularities. Also, the type of irregularity of the track irregularity can be known prior to monitoring. Additionally, multiple track irregularities may be included on the actual track.

[0101] In order to facilitate monitoring, the maglev train is controlled to run at a constant speed on the actual track. In th...

Embodiment 2

[0126] It should be noted that since the track roughness shows a slow downward trend in the long-term use of the track, the track irregularity at different moments presents a time series with an increasing trend. However, the degree of track irregularity varies nonlinearly with time, so it is difficult to predict the degree of track irregularity at a certain time in the future by means of curve fitting.

[0127] In order to solve this problem, the embodiment of the present invention provides a method of using the track irregularities at multiple moments in the past, and using a time-based prediction algorithm to predict the track irregularities of the maglev train at certain moments in the future.

[0128] Figure 13 It is a schematic flowchart of a method for predicting track irregularity of a maglev train at a preset time in the future provided by Embodiment 2 of the present invention. Such as Figure 13 As shown, the method includes the following steps:

[0129] S131. Ob...

Embodiment 3

[0179] It should be noted that, in the embodiment of the present invention, the suspension performance data fluctuation amplitude includes at least one of the suspension gap fluctuation amplitude and the suspension current fluctuation amplitude. The degree of track irregularity can be determined according to the relationship between the running speed of the train and the fluctuation amplitude of the suspension gap and / or the relationship between the running speed of the train and the fluctuation amplitude of the suspension current.

[0180] In addition, in the suspension performance data, the suspension performance data most obviously affected by the degree of track irregularity is generally the suspension gap fluctuation amplitude. As an example, the embodiment of the present invention takes the fluctuation amplitude of the suspension gap as an example to illustrate how to use the suspension performance data to predict the degree of track irregularity at a preset time in the f...

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Abstract

The invention provides a magnetically levitated train rail irregularity monitoring and predicating method, device and system. The monitoring method comprises the steps of obtaining first operation state data and first suspension performance data of a magnetically levitated train operating on practical rails; determining the specific rail irregularity type of rail irregularity points according to first train position information; finding first rail irregularity degree corresponding to the first operation speed and the first suspension performance data from each corresponding relationship of the operation speed and the suspension performance data of each rail irregularity degree of the specific rail irregularity type. By the method, the rail irregularity degree of the rail irregularity points on the magnetically levitated train rail at different time periods can be monitored, so that the monitoring on the magnetically levitated train rail irregularity can be realized; further, the operation safety of the magnetically levitated train can be ensured.

Description

technical field [0001] The invention relates to the field of maglev trains, in particular to a method, device and system for monitoring and predicting track irregularities of maglev trains. Background technique [0002] The maglev train realizes the support and guidance control of the vehicle by non-contact electromagnetic force. In the track construction of the maglev train, a large number of viaducts and other structures are used. Due to the foundation structure of the bridge and other problems, it is difficult to build a completely smooth train track. track irregularities. The track irregularity is the main source of the vibration of the maglev train. Serious track irregularity will not only cause the violent vibration of the maglev train, but also increase the force between the track and the maglev train, and even cause the maglev train to directly collide with the track. endanger driving safety. [0003] Therefore, in order to ensure the safe and stable operation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L25/02B61L23/04B61K9/08
Inventor 龙志强窦峰山戴春辉范成鑫侯圣杰文艳辉黄号凯吴峻周文武
Owner BEIJING ENTERPRISES HLDG MAGLEV TECH DEV