Rail transit train running speed intelligent calculation method and system

A rail transit train and running speed technology, which is applied in the field of rail transit, can solve problems such as the inability to obtain train running speed data, and achieve the effect of intelligent calculation

Active Publication Date: 2020-12-04
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to various reasons such as professional subdivision, departmental jurisdiction and division of labor, it is often impossible to obtain accurate train running speed data in the aforementioned two scenarios of rail vibration reduction product vibration reduction performance test and environmental vibration source strength test

Method used

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  • Rail transit train running speed intelligent calculation method and system
  • Rail transit train running speed intelligent calculation method and system
  • Rail transit train running speed intelligent calculation method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment discloses a method for intelligently calculating the running speed of rail transit trains, such as figure 1 ,include:

[0042] S100. Obtain the dynamic displacement data of the rail during the passing period through the displacement sensor and the signal acquisition device, and the acquired dynamic displacement data includes two columns of displacement data and time data.

[0043] Specifically, in some preferred embodiments, the displacement data includes vertical or lateral dynamic displacement data of the rail. Specifically, the acquired dynamic displacement data such as figure 2 .

[0044] S200. Comparing and analyzing the obtained rail dynamic displacement data to obtain the maximum value A and the minimum value B of the displacement data; specific utilization figure 2 The displacement data and time data in , with the time data as the abscissa and the displacement data as the ordinate, form a dynamic displacement data time course diagram, such a...

Embodiment 2

[0059] This embodiment discloses an intelligent calculation system for rail transit train running speed, which is characterized in that it includes: a track displacement acquisition module 1, a numerical comparison module 2, a critical moment acquisition module 3, and a running speed calculation module 4; wherein:

[0060] Track displacement acquisition module 1, through displacement sensor and signal acquisition equipment, obtains the rail dynamic displacement data of passing period, the dynamic displacement data that obtains comprises two columns of displacement data and time data; figure 2 described in , and will not be repeated here.

[0061] Numerical comparison module 2, which compares and analyzes the obtained rail dynamic displacement data, and obtains the maximum value A and the minimum value B of the displacement data; compares the absolute value of the maximum value A and the minimum value B, and according to the absolute value of the maximum value A and the minimum...

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Abstract

A rail transit train running speed intelligent calculation method comprises the steps of acquiring dynamic displacement data of a steel rail by a displacement sensor; obtaining a maximum value A and aminimum value B of the displacement data, and determining a key constant C according to absolute values of A and B; obtaining a first key moment t1 according to the key constant C; obtaining a secondstarting moment t2 according to the first starting moment t0, the first key moment t1, the train-vehicle fixed distance L and the line design speed V1, and obtaining a second key moment t3 by takingt2 as a starting point; and according to the train vehicle fixed distances L, t1 and t3, obtaining the train running speed V2 through calculation. The method is applied to various situations such as rail vibration reduction product vibration reduction performance testing and rail transit environment vibration source intensity testing, and the running speed of a train passing through a test sectioncan be accurately obtained. According to the method, the passing time interval of the train wheel set is intelligently extracted, intelligent calculation of the running speed of the train passing moment is achieved, and the running speed of different train passing moments can be obtained through circulation.

Description

technical field [0001] The present invention relates to the technical field of rail transit, and in particular to a method and system for intelligently calculating the running speed of rail transit trains. Background technique [0002] In the field of rail transit, when conducting the vibration damping performance test of track damping products, it is required that the test section of the damped track and the test section of the non-damped track used for comparison have the same train passing speed, so it is necessary to obtain the train passing test during the test The running speed of the section; when carrying out the analog test of the strength of the environmental vibration source, the running speed of the train passing through the analog test section is required to be 75% to 125% of the line design speed, so it is also necessary to obtain the train passing through the test section during the test. run speed. [0003] For the measurement of train running speed, the exi...

Claims

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Application Information

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IPC IPC(8): B61L25/02
CPCB61L25/021
Inventor 罗伟李秋义孙立王森荣刘玉涛林超
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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