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Automatic train wheel diameter correcting method

A correction method and a wheel diameter technology, which are applied to railway car body parts, vehicle route interaction equipment, railway signal and safety, etc., can solve the problems of insufficient satellite signal positioning accuracy, unfavorable subway line engineering application, and inability to receive satellite signals. Achieve smooth changes, reduce inaccuracies, and improve stability and reliability

Active Publication Date: 2014-04-09
TRAFFIC CONTROL TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0007] Subway lines often run underground and cannot receive satellite signals; they need to be equipped with satellite signal receiving modules; subway lines are not straight tracks, and the positioning accuracy of satellite signals through latitude and longitude is insufficient; the algorithm is complex; it is not conducive to the application of subway line engineering

Method used

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] The present invention provides a kind of train automatic wheel diameter correction method, is suitable for the wheel diameter detection of subway train, and it comprises the following steps:

[0034] (1) Firstly, determine the initial value of the train wheel diameter by measurement. Usually, the initial value of the train wheel diameter is the default value when the train leaves the factory;

[0035] (2) Arrange the transponders according to the condition of the line and the speed limit of the train, select two adjacent transponders on the straight line as the reference benchmark for wheel diameter correction, and measure the two transponders by means of pull wires...

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Abstract

The invention relates to the technical field of train wheel diameter correction and discloses an automatic train wheel diameter correcting method. The automatic train wheel diameter correcting method includes the steps of firstly, determining the initial values of wheel diameters; secondly, arranging transponders, selecting two adjacent transponders on a straight line to serve as the basis reference of wheel diameter correction, and measuring the actual distance between the two transponders; thirdly, by a train, obtaining the operation distance in set time according the measured speed, and obtaining the updated wheel diameter values according to the ratio of the operation distance to the measured actual distance and the initial values of the wheel diameters; fourthly, performing validity check on the updated wheel diameter values; fifthly, filtering bad values of the updated wheel diameter values. The method has the advantages that the standard transponder system of a subway line is used as the auxiliary equipment for train wheel diameter automatic correction, and automatic train wheel diameter correction is achieved while system speed measuring and positioning precision is increased.

Description

technical field [0001] The invention relates to the technical field of train wheel diameter correction, in particular to an automatic train wheel diameter correction method. Background technique [0002] In the train control system, the speed sensor installed on the train wheel set is often used to measure the speed of the wheel set, and the linear speed of the train is obtained through the wheel diameter value, so the accuracy of the train wheel diameter value plays a crucial role in the train speed measurement and positioning. Important role, on the one hand, because the train is running on the line, the wheel set of the train will wear out, so the wheel diameter value will gradually decrease with the running of the train; Symmetrical wear, which can cause damage to the circumference of the wheel, requires manual wheel rotation to keep the wheelset round. [0003] The wheel diameter value of the traditional train control system is set through the dial switch, usually 10 g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L1/00B61L1/16
Inventor 张蕾夏夕盛
Owner TRAFFIC CONTROL TECH CO LTD
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