Method and apparatus for identifying and sorting objects

B - Operations – Transporting – 07 – C

Patent

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Details

B07C 5/342 (2006.01)

Patent

CA 2473401

A system of identifying and/or sorting of matter including an advancing device (101) for advancing the matter, a radiation emitting device (107) serving to emit radiation which is varied by the advancing matter, a detecting arrangement (103) serving to detect the varied radiation, and an analysing arrangement (106) serving to analyse the varied radiation. A spectral analyser (104) serves to detect the varied radiation in a plurality of narrow wavelength bands in the visible spectrum in order to determine the colour and/or composition of the matter. The system may also include another spectral analyser (105) operable in the invisible wavelength spectrum to analyse radiation which has been varied by the matter and is in the invisible wavelength spectrum. The system may further include a colour camera (102) and an arrangement which applies camera image interpretation to radiation which has been varied by the matter. The analysing arrangement (106) controls the operation of air valves for compressed air nozzles (109) so as to eject wanted or unwanted matter from the advancing device (101).

L'invention concerne un système d'identification et/ou de tri de matière comprenant un dispositif d'avancement (101) destiné à faire avancer la matière, un dispositif émetteur de rayonnements (107) servant à émettre des rayonnements qui sont modifiés par la matière qui avance, un détecteur (103) servant à détecter les rayonnements modifiés, et un analyseur (106) servant à analyser les rayonnements modifiés. Un analyseur spectral (104) sert à détecter les rayonnements modifiés en une pluralité de bandes de longueur d'ondes étroites dans le spectre visible de façon à déterminer la couleur et/ou la composition de la matière. Le système peut comprendre également un autre analyseur spectral (105) servant à analyser les rayonnements modifiés par la matière dans le spectre de longueur d'onde invisible. Le système peut en outre comprendre un appareil de prises de vue (102) et un dispositif qui applique l'interprétation de l'image captée aux rayonnements qui ont été modifiés par la matière. L'analyseur (106) commande l'opération des sorties d'air de buses d'air comprimé (109) de façon à éjecter la matière voulue ou non voulue du dispositif d'avancement.

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