Invention Grant
- Patent Title: System and method for inspecting the geometric parameters of the wheels of railway vehicles
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Application No.: US14778239Application Date: 2014-03-18
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Publication No.: US10088300B2Publication Date: 2018-10-02
- Inventor: Ronald Mauricio Martinod Restrepo , German René Betancur Giraldo , Leonel Francisco Castañeda Heredia , Adalberto G. Díaz , Iván D. Arango
- Applicant: UNIVERSIDAD EAFIT
- Applicant Address: CO Medellin CO Bello
- Assignee: Universidad EAFIT,Empresa de Transporte Masivo del Valle de Aburra Limitada—Metro de Madellin Ltda
- Current Assignee: Universidad EAFIT,Empresa de Transporte Masivo del Valle de Aburra Limitada—Metro de Madellin Ltda
- Current Assignee Address: CO Medellin CO Bello
- Agency: The Morales Law Firm
- Agent Joseph L. Morales, Esq.
- Priority: CO13-053632 20130318
- International Application: PCT/IB2014/059951 WO 20140318
- International Announcement: WO2014/147563 WO 20140925
- Main IPC: B61K9/12
- IPC: B61K9/12 ; G01B11/25 ; G01B11/10 ; G01M17/013 ; H04N5/372 ; G06T7/62

Abstract:
The present invention relates to a system and method for the automated inspection of geometric parameters of railway wheels rolling on a track by artificial vision techniques. The present invention uses a structured light source (10) that illuminates a line of light (12) upon a fraction of the surface of revolution (3) of a wheel (1), a CCD camera (20), which captures an image (21) of the illuminated area, and a data processing system that records, digitalizes, geometrically corrects and reconstructs information of the surface of revolution (3) that is not recorded in the image (21), in order to obtain a numeric description of the complete transverse section of the wheel (1) represented by a reconstructed profilogram (500) for calculating the geometric parameters of the wheel (1).
Public/Granted literature
- US20160282108A1 SYSTEM AND METHOD FOR INSPECTING THE GEOMETRIC PARAMETERS OF THE WHEELS OF RAILWAY VEHICLES Public/Granted day:2016-09-29
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