Train wheelbase detection method and system

The use of non-contact sensors along the train track to measure wheelbase addresses adaptability issues in existing methods, providing accurate wheelbase calculations for moving trains by minimizing errors from sensor installation and train speed variations.

EP3626574B1Active Publication Date: 2026-04-22NUCTECH CO LTD +1
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
NUCTECH CO LTD
Filing Date
2019-05-31
Publication Date
2026-04-22

AI Technical Summary

Technical Problem

Existing methods for measuring train wheelbase, both manual and sensor-based, face challenges in adaptability, particularly when measuring moving trains, due to factors like sensor installation distance, train speed, and manufacturing errors, which affect accuracy and suitability for low-speed trains.

Method used

A method and system using non-contact sensors, such as photoelectric or laser ranging sensors, arranged along the train track to sense train wheels, calculate moving speed, and determine wheelbase based on time intervals, reducing the impact of factors like wheel wear and train speed, and enabling accurate measurement of moving trains.

Benefits of technology

The system improves the adaptability of train wheelbase measurement by accurately calculating wheelbase for moving trains, minimizing errors from sensor installation variations and ensuring reliable results even at low speeds.

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Abstract

The present disclosure relates to a method and a system for measuring train wheelbase. The method includes: judging whether train wheels are passing by at least two non-contact sensors at present according to sensing data from the at least two non-contact sensors arranged on an outer side of a train track and arranged at intervals along the train track; in response to determination that train wheels are passing by the at least two non-contact sensors at present, calculating a moving speed of the train wheels according to the sensing data from the at least two non-contact sensors, and calculating a first time interval of adjacent train wheels passing by a same non-contact sensor of the at least two non-contact sensors; and calculating a wheelbase of the adjacent train wheels based on the moving speed and the first time interval. By adoption of the embodiment of the present disclosure, the adaptability of train wheelbase measurement can be improved.
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