Patents by Inventor ADALBERTO G. DÍAZ

ADALBERTO G. DÍAZ has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for inspecting the geometric parameters of the wheels of railway vehicles
    Patent number: 10088300
    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).
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: October 2, 2018
    Assignees: Universidad EAFIT, Empresa de Transporte Masivo del Valle de Aburra Limitada—Metro de Madellin Ltda
    Inventors: Ronald Mauricio Martinod Restrepo, German René Betancur Giraldo, Leonel Francisco Castañeda Heredia, Adalberto G. Díaz, Iván D. Arango
  • SYSTEM AND METHOD FOR INSPECTING THE GEOMETRIC PARAMETERS OF THE WHEELS OF RAILWAY VEHICLES
    Publication number: 20160282108
    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).
    Type: Application
    Filed: March 18, 2014
    Publication date: September 29, 2016
    Inventors: RONALD MAURICIO MARTINOD RESTREPO, GERMAN RENÉ BETANCUR GIRALDO, LEONEL FRANCISCO CASTAÑEDA HEREDIA, ADALBERTO G. DÍAZ, IVÁN D. ARANGO