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Typical working condition construction method for train long motion segment

A technology of moving segments and typical working conditions, applied in the direction of registration/indicating vehicle operation, complex mathematical operations, measuring devices, etc., can solve the problem of long distances, increasing the difficulty and cost of testing, and difficult to balance the length accuracy of working conditions, etc. problem, to achieve the effect of strong applicability and integrity

Active Publication Date: 2021-06-11
BEIHANG UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The working condition length and the overall feature similarity are a pair of contradictions. Generally, the longer the working condition is constructed, the closer the working condition features are to the characteristics of all running segments, but longer working conditions will increase the difficulty and cost of testing.
The distance between the train station and the station is relatively long. If the construction method based on the short stroke is used, it is difficult to balance the length of the working condition and the accuracy of the working condition

Method used

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  • Typical working condition construction method for train long motion segment
  • Typical working condition construction method for train long motion segment
  • Typical working condition construction method for train long motion segment

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Embodiment Construction

[0020] specific implementation plan

[0021] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0022] The invention proposes to divide the long motion segment into smaller segments according to the motion pattern, and then use random selection and condition constraints to make the operating conditions constructed have typical characteristics and the length of the operating conditions can be controlled. The present invention constructs the flow process of train typical working condition as follows figure 1 As shown, first collect train data according to the construction requirements of the working conditions; secondly, eliminate unreasonable data; then preprocess the remaining valid data, including interpolation, resampling to supplement missing data and adjust sampling frequency, and filter to eliminate noise; Then, each motion segment is divided into short segments according to the motion pattern; finally...

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Abstract

The invention provides a typical working condition construction method for a train long motion segment, and belongs to the technical field of traffic transportation. According to the method, firstly, train data are collected according to working condition construction requirements, and invalid data in the train data are removed; the remaining effective data is preprocessed, including interpolation, resampling and filtering; then the motion segment is divided into short segments according to a train motion mode; and finally, a series of candidate working conditions are constructed according to a working condition construction rule, calculating characteristic parameters and evaluation quality assurance of the candidate working conditions, and the candidate working condition with the minimum evaluation index is selected to construct a typical working condition. According to the method disclosed by the invention, the working condition construction of the traffic tool with relatively long single-time movement time is realized, and the typical working condition based on the train long movement fragment can be constructed; according to the method, working conditions with more typical characteristics can be constructed, and the total length of the working conditions of train movement can be controlled.

Description

technical field [0001] The invention relates to a working condition construction method, which belongs to the technical field of transportation, and in particular relates to a method for motion data collection, data preprocessing, segment segmentation and working condition construction. Background technique [0002] The operating condition is a speed-time series of a certain length, which was first introduced into the pollutant emission test of automobiles, and later also used in energy consumption tests and performance tests of different vehicles. Because the working characteristics of different regions and different types of vehicles are very different, therefore, many typical operating conditions have been constructed for vehicles with different working characteristics. As the vehicle with the second largest market share in land transportation, trains currently have no construction method for typical working conditions of trains. [0003] The general working condition co...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/11G06F17/16G06F17/18G07C5/08G01D21/02
CPCG06F17/11G06F17/16G06F17/18G01D21/02G07C5/0841
Inventor 张辉陶斯友
Owner BEIHANG UNIV