A METHOD FOR AUTOMATICALLY DETECTING, BY MEANS OF COMPUTERIZED PROCESSING, OF THERMAL INFORMATION ABOUT A SURFACE OF A BRAKE DISC UNDER DYNAMIC OPERATING CONDITIONS
The invention relates to a method for automatically detecting, by means of computerized processing, information about temperature evolution and/or about location/distribution of hot spots and/or bands and/or zones on the surface of a brake disc under dynamic operating conditions. The method comprise...
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Sprache: | eng ; fre |
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Zusammenfassung: | The invention relates to a method for automatically detecting, by means of computerized processing, information about temperature evolution and/or about location/distribution of hot spots and/or bands and/or zones on the surface of a brake disc under dynamic operating conditions. The method comprises the steps of acquiring a plurality of digital images and/or a digital video, obtaining a representation of each of the digital images and/or digital video frames in the form of matrix data, on which to perform a processing by means of algorithms comprising image analysis or "computer vision" algorithms, to obtain and provide information about temperature evolution and/or about location/distribution of hot spots and/or bands and/or zones on the zone of interest of the surface of a brake disc. The aforesaid acquiring step includes acquiring, by means of at least one thermal imaging camera, during the evolution of the aforesaid dynamic operating conditions, a plurality of digital images and/or a digital video, comprising a plurality of digital frames, of at least one zone of interest of the brake disc to be thermally characterized. Each of such digital images and/or each of such digital video frames depicts, by means of a color map, the temperatures detected at each point. The aforesaid processing step comprises the following steps: identifying the zone of interest by generating a mask based on an analysis of the plurality of digital images and/or digital video frames acquired; then, applying the generated mask to each of the digital images and/or digital video frames acquired and obtaining processed matrix data related to the zone of interest; then, defining the area of analysis and performing a thermal analysis on the data related to the defined area of analysis, to obtain information about the temperature evolution at each point of interest; finally, identifying hot points based on the aforesaid information about the temperature evolution on each point of interest. The aforesaid providing step includes providing the information obtained in the form of digital images or graphics and/or digital tables and/or digital video.
L'invention concerne un procédé de détection automatique, au moyen d'un traitement informatisé, d'informations sur l'évolution de la température et/ou sur l'emplacement/la répartition de points chauds et/ou de bandes et/ou de zones sur la surface d'un disque de frein dans des conditions de fonctionnement dynamiques. Le procédé comprend les éta |
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