EP0342354A3 - Color sorting apparatus - Google Patents

Color sorting apparatus Download PDF

Info

Publication number
EP0342354A3
EP0342354A3 EP19890106349 EP89106349A EP0342354A3 EP 0342354 A3 EP0342354 A3 EP 0342354A3 EP 19890106349 EP19890106349 EP 19890106349 EP 89106349 A EP89106349 A EP 89106349A EP 0342354 A3 EP0342354 A3 EP 0342354A3
Authority
EP
European Patent Office
Prior art keywords
sorting
objects
matrix
color
photodetectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19890106349
Other languages
German (de)
French (fr)
Other versions
EP0342354A2 (en
Inventor
Sergio Buarque Quintaes
Philippe Kayser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tecnostral Sa Industria E Tecnologia
Original Assignee
Tecnostral Sa Industria E Tecnologia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BR8801825A external-priority patent/BR8801825A/en
Priority claimed from BR8801824A external-priority patent/BR8801824A/en
Priority claimed from BR8801851A external-priority patent/BR8801851A/en
Application filed by Tecnostral Sa Industria E Tecnologia filed Critical Tecnostral Sa Industria E Tecnologia
Publication of EP0342354A2 publication Critical patent/EP0342354A2/en
Publication of EP0342354A3 publication Critical patent/EP0342354A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Sorting Of Articles (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

An apparatus for sorting objects by color, such as coffee beans, peanuts, beans and other small granular objects. The apparatus includes a means of conveying the objects, uniformly and individually, to the interior of an illuminated analysis chamber that contains one or more sorting channels. Each sorting channel contains at least one lens group connected to photodetectors. The photodetectors are interconnected to electronic circuitry capable of transforming light reflected, transmitted or emitted by the objects into analog electrical signals that are digitized through electrical level detectors. Color analysis of the objects is based on a matrix sorting process that identifies color by comparing the above digitized electrical signals to the contents of a sorting matrix. There is also a matrix apparatus that allows the operator to select, modify, create and display the sorting matriz. There is a means of automatically generating the sorting matrix based on a sampling of electrical signals produced by passing a group of objects with specific color characteristics through the analysis chamber. Microprocessors in a process controller operating on real time are utilized. Adopting the matrix sorting process, this controller classifies objects as acceptable or unacceptable, as well as controlling and supervising all electronic apparatuses linked to the photodetectors. The process controller operates in every sorting channel so as to ensure that article sorting will be based on the matrix process and the sorting matrix.
EP19890106349 1988-04-15 1989-04-11 Color sorting apparatus Withdrawn EP0342354A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
BR8801824 1988-04-15
BR8801825A BR8801825A (en) 1988-04-15 1988-04-15 MATRIX DEVICE FOR SELECTING ITEMS BY COLOR
BR8801825 1988-04-15
BR8801824A BR8801824A (en) 1988-04-15 1988-04-15 MATRIX PROCESS FOR SELECTING ITEMS BY COLOR
BR8801851 1988-04-19
BR8801851A BR8801851A (en) 1988-04-19 1988-04-19 MACHINE FOR SELECTING ITEMS BY COLOR

Publications (2)

Publication Number Publication Date
EP0342354A2 EP0342354A2 (en) 1989-11-23
EP0342354A3 true EP0342354A3 (en) 1992-01-08

Family

ID=27160017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890106349 Withdrawn EP0342354A3 (en) 1988-04-15 1989-04-11 Color sorting apparatus

Country Status (3)

Country Link
EP (1) EP0342354A3 (en)
MX (1) MX171662B (en)
OA (1) OA08993A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210157C2 (en) * 1992-03-27 1994-12-22 Bodenseewerk Geraetetech Process for sorting broken glass
DE4345106C2 (en) * 1993-12-28 1995-11-23 Reemtsma H F & Ph Process for the optical sorting of bulk goods
FR2732464B1 (en) * 1995-03-30 1997-04-30 Alcatel Cable METHOD AND DEVICE FOR VERIFYING THE CONFORMITY OF A GIVEN INSULATING ELEMENT WITH A REFERENCE INSULATING ELEMENT
ES2111456B1 (en) * 1995-04-20 1998-10-01 Univ Las Palmas Gran Canaria BIOINSPIRED ELECTRONIC CO-PROCESSING SYSTEM FOR COLOR DETECTION IN DIGITAL IMAGES.
EP0775533A3 (en) * 1995-11-24 1998-06-17 Elpatronic Ag Sorting method
DE19902754A1 (en) * 1999-01-25 2000-07-27 Raiss Ervedo Jun Device for sorting copper particles from shredded electrical cables comprises an apparatus forming a particle stream, a light sensor, microprocessor and a separating device
JP3722354B2 (en) * 1999-09-10 2005-11-30 株式会社サタケ Granular material sorting method and granular material sorting device
CR20180593A (en) * 2016-06-07 2019-05-02 Federacion Nac De Cafeteros De Colombia GRAIN CLASSIFICATION DEVICE AND METHOD

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1291802A (en) * 1961-03-30 1962-04-27 Mandrel Ind Electrical color separation
US4235342A (en) * 1978-05-05 1980-11-25 Geosource Inc. Sorting apparatus using programmable classifier
EP0111877A1 (en) * 1982-12-21 1984-06-27 ILLYCAFFE S.p.A. A procedure for sorting a granular material and a machine for executing the procedure
EP0122653A1 (en) * 1983-03-29 1984-10-24 Institut National Polytechnique Method and device for sorting objects according to their external appearance, in particular for the colour sorting of objects
GB2180060A (en) * 1983-01-07 1987-03-18 Delta Technology Corp Agricultural product sorting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1291802A (en) * 1961-03-30 1962-04-27 Mandrel Ind Electrical color separation
US4235342A (en) * 1978-05-05 1980-11-25 Geosource Inc. Sorting apparatus using programmable classifier
EP0111877A1 (en) * 1982-12-21 1984-06-27 ILLYCAFFE S.p.A. A procedure for sorting a granular material and a machine for executing the procedure
GB2180060A (en) * 1983-01-07 1987-03-18 Delta Technology Corp Agricultural product sorting
EP0122653A1 (en) * 1983-03-29 1984-10-24 Institut National Polytechnique Method and device for sorting objects according to their external appearance, in particular for the colour sorting of objects

Also Published As

Publication number Publication date
MX171662B (en) 1993-11-10
EP0342354A2 (en) 1989-11-23
OA08993A (en) 1990-11-30

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