Train wheel diameter auto-calibration system and method based on precise ranging

An automatic calibration and wheel diameter technology, applied in railway signaling and safety, can solve problems such as high construction and maintenance costs, large human influence, and large errors, and achieve the effect of increasing maintenance costs, reducing train positioning errors, and ensuring safety.

Inactive Publication Date: 2018-01-30
成都九壹通智能科技股份有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

In the semi-automatic block section, the driver can manually press the adjustment button to adjust the wheel diameter when passing the signal machine for entering or exiting the station. However, this method is greatly affected by human influence and produces large errors.
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  • Train wheel diameter auto-calibration system and method based on precise ranging
  • Train wheel diameter auto-calibration system and method based on precise ranging

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0023] Examples of the described embodiments are shown in the drawings, wherein like or similar reference numerals designate like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockw...

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Abstract

The invention discloses a train wheel diameter auto-calibration system based on precise ranging, comprising a positioning module, a map matching module, a data recording module, a communication module, a map database and a master processor, wherein the map database is used for storing related information of train operation lines, a TW-TOF (two way-time of flight) ranging module activates Kalman filtering according to an estimated value of a ranging error range provided, non-precise values are filtered via a warning function, the master processor is electrically connected with the TW-TOF ranging module, the positioning module, the map matching module, the data recording module, and the communication module, and the map database is stored in the master processor. The system according to theinvention has the advantages that locomotive wheels are automatically calibrated through the satellite positioning technique and the TW-TOF ranging module, assistance from ground equipment is not required, and accordingly, train positioning errors are fewer, train positioning precision is improved at the premise of reduced maintenance cost and train operation safety is ensured.

Description

technical field [0001] The invention relates to the technical field of automatic calibration of train wheel diameters, in particular to an automatic calibration system and method for train wheel diameters based on accurate distance measurement. Background technique [0002] Train positioning plays a vital role in train operation. At present, the train positioning technologies that are actually put into use include: odometer, track circuit, query transponder, inertial sensor, leaky cable, Doppler radar, etc. Among them, the odometer is the most commonly used train positioning method, which has the advantages of low cost, simple Practical and other features. The method of using the odometer to locate the train is to calculate the mileage traveled by the train according to the cumulative number of rotations of the recorded wheels multiplied by its circumference. Since the track line of the train is one-dimensional, the specific position of the train can be determined accordin...

Claims

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Application Information

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IPC IPC(8): B61L25/02
Inventor 杨吉钊付少良袁波冯常明沈琦张勇雄
Owner 成都九壹通智能科技股份有限公司
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