FR2679024A1 - System for automatically sorting coinage blanks - Google Patents

System for automatically sorting coinage blanks Download PDF

Info

Publication number
FR2679024A1
FR2679024A1 FR9109060A FR9109060A FR2679024A1 FR 2679024 A1 FR2679024 A1 FR 2679024A1 FR 9109060 A FR9109060 A FR 9109060A FR 9109060 A FR9109060 A FR 9109060A FR 2679024 A1 FR2679024 A1 FR 2679024A1
Authority
FR
France
Prior art keywords
blanks
sorting
defects
image analysis
coinage
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.)
Granted
Application number
FR9109060A
Other languages
French (fr)
Other versions
FR2679024B1 (en
Inventor
Riboulet Philippe
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.)
Proditec
Original Assignee
Proditec
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
Application filed by Proditec filed Critical Proditec
Priority to FR9109060A priority Critical patent/FR2679024B1/en
Priority to DE19924222984 priority patent/DE4222984A1/en
Publication of FR2679024A1 publication Critical patent/FR2679024A1/en
Application granted granted Critical
Publication of FR2679024B1 publication Critical patent/FR2679024B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/024—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of diode-array scanning
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
    • G01B11/303—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The invention relates to a system making it possible to automate the sorting of coinage blanks in order to remove those which exhibit contour, surface or geometry defects. The system consists: - of two image analysis units, each analysing one face of the blanks, - a device for distributing and aligning the blanks which presents them to the image analysis units. A device for turning the blanks over makes it possible to present the second face to the second analysis unit. A rejection device is combined with each image analysis unit and allows those blanks judged defective to be separated from those blanks judged correct. The system according to the invention is particularly intended for automatic, high-speed sorting of coinage blanks or objects or products which are in the form of discs or rings.

Description

La prdsente invention concerne un aystneu permettant d'automtiser le trtThe present invention relates to an aystneu for automating trt

de flans monc 4 i-res pour éli miner ceux qui prtsencenc des défauts de con, cour, de surfaca, ou de &géométrie. Les flans monétaires sonc soit des difsques mcta Ll Lques, présentan: ou non S un bourretec périphérique appelé cordon, soic des couronnes. Les att Lúgas conscttu 8 nr &en flans sont soit LE un a LL Lage cuivreux, soit du nicke L, soit de V'argent. D'autres &a L Liages sonc susceptibles d'être utilisés. Ces flanrs sont obcenus par decoupage dans des bobines Laminées puis sont d 8 r 4 Lie* 6 s, úvenec L Lemana cor 4 onnés rrttu Rs et eftfin brillantes. A ce stade de fabricacton, Lt est nécessairt de Les trier Ufin di 4 L Lminer tes défauts avanc La frappe finale. n e Effet, Las opérations de fabricaticon citées ci-dessus g&nàrenr diffé- rents 4 êfauts que LI'on peut classif Ler en trotis grandes cstagnres a) Défauts de surface: = rayures, coups, empreinte oxydalton, t&ahes, entt Leur non conforme flans feuillecés ou pailleux b) D Ofauts de contour W fausse coupe diatm Atr:e non conforma flans soudés concancricité des couronnes e) Défauts de géométrie: litas voilés ou tordue couronnes ovalisées  of blanks monc 4 i-res to eliminate those who prtencenc defects of con, court, surfaca, or geometry. The monetary blanks are either difques mcta Ll Lques, presentan: or not S a peripheral bourretec called cord, soic of the crowns. The atts Lúgas conscttu 8 nr & in blanks are either LE a a LL Lage cupreux, or nicke L, or silver. Others & a L Liages may be used. These flanrs are obtained by cutting from laminated coils and are then 8 r 4 Lie * 6 s, úvenec L Lemana cor 4 onnes rrttu Rs and eftfin brilliant. At this stage of fabricacton, Lt is necessary to sort them Ufin di 4 L Lminer your defects advanced The final strike. ne Effect, The manufacturing operations mentioned above generate different 4 faults that can be classified Ler in trotis large cstagnres a) Surface defects: = scratches, blows, oxidalton imprint, t & ahes, entt Their non-compliant leafy blanks or straw b) D Contours of contour W false cut diatm Atr: e nonconforma welded blanks concancricity of the crowns e) Defects of geometry: veiled litas or twisted ovalized crowns

Dans le procédé accuel de fabrication de 1 l monnaie, on effectue un con-  In the current method of making 1 l money, a

trôtl systcmatique d As flans sur un tapis de vérification vtisuelle, Les problèmes L Lt S k ce tri visue L ont do daux ordres: une faeisue visuelle tmportance la qualité du tri difficilement ma{trisab Le qui entraiîne l'limlnarion de  Systematic trôl of As blanks on a visual verification mat, The problems L Lt S in this visual sorting L have to do with orders: a visual faience matters the quality of the sorting which is difficult to master The which entails the limitation of

flans bons ec lae non-rejet de flans présentant un d&fauc.  blanks good with lae non-rejection of blanks with a defect.

CS'e SC l'autcomacisaton dc cocac oprtacton qui fait l'objet de la présence invenction, Le système automatique de tri est constitué par un système d'analyse d'image muni de deux caméras il se présente comme La succession  CS'e SC autocacisaton dc cocac oprtacton which is the subject of the invenction presence, The automatic sorting system is constituted by an image analysis system equipped with two cameras it appears as The succession

des dispositifs décrits ci-dessous.  of the devices described below.

Il est représenté par les figures i (schéma général) et la figure 2 (schéma du poste d'analyse): a Un système d'alimentation des flans assure leur distribution Ce système  It is represented by Figures i (general diagram) and Figure 2 (diagram of the analysis station): a A supply system for the blanks ensures their distribution This system

est typiquement constitué par une trémie ( 1), et une suite de pei es vi-  typically consists of a hopper (1), and a series of pei es

brantes ( 2) qui déversent les flans sur une bande transporteuse ( 3).  brantes (2) which pour the blanks onto a conveyor belt (3).

b Un système d'alignement met les flans suivant une ou plusieurs files pa-  b An alignment system places the blanks in one or more rows

rai Lèles au sens de défilement de la bande.  rai Lèles in the direction of travel of the strip.

c Les flans en surplus qui ne peuvent pas ntre alignés sont recyciés dans  c Any excess blanks that cannot be aligned are recycied in

la trémie supérieure à l'aide, par exemple, d'une petite bande transpor-  the upper hopper using, for example, a small conveyor belt

euse annexe.her annex.

d Les flans alignés ( 4) se présentent sous une caméra ( 5) capable d'en extraire les caractéristiques nécessaires au tri, c'est à dire le contour  d The aligned blanks (4) are presented under a camera (5) capable of extracting from them the characteristics necessary for sorting, i.e. the outline

des découpes et l'état de la surface.  cutouts and surface condition.

e Un éjecteur ( 6), par exemple constitué d'un électro-aimant raoide ac-  e An ejector (6), for example consisting of a stiff electromagnet ac-

tivant une tige, éjecte le flan jugé défeczueux de la file en Le poussant  pulling a rod, ejects the blank deemed to be defective from the queue by pushing it

sur le côté.on the side.

f La bande transporteuse retourne les felans et les présentent à un deu-  f The conveyor belt turns the flakes and presents them to two

xième système d'analyse et d'éjection qui permet donc de traiter la deu-  xth analysis and ejection system which therefore makes it possible to treat the two

xième face.xth side.

g En fin de tapis, des goulottes ( 7) récupèrent les flans bons et rejetés,  g At the end of the carpet, troughs (7) collect the good and rejected blanks,

et les dirigent vers différents containers ( 8).  and direct them to different containers (8).

L'analyse des défauts est basée sur l'aczuisition de lignes d'images ( 9) successivement acquises par la caméra au défilement des flans comme schéma  The analysis of the defects is based on the aczuisition of lines of images (9) successively acquired by the camera when the blanks scroll as a diagram.

tisé sur la figure 3.bet on figure 3.

Un éclairage ( 10) puissant met la surface des flans en réflexion et permet de caractériser un flan par une succession de transitions noir/blanc et  A powerful lighting (10) puts the surface of the blanks in reflection and makes it possible to characterize a blank by a succession of black / white transitions and

blanc/noir sur La longueur de la ligne d'image.  white / black on The length of the image line.

Un flan non défectueux se présente comme un segment noir (tapis transpor-  A non-defective blank appears as a black segment (conveyor belt

teur), un segment blanc (flan) suivi d'un segment noir (tapis).  ), a white segment (blank) followed by a black segment (carpet).

La dimension du segment blanc caractérisa La largeur du flan positionné  The size of the white segment characterizes the width of the positioned blank

sous le capteur de la caméra.under the camera sensor.

3 S L'image suivante prise après que le flan ait avancé d'une certaine distance donnera une autre valeur L'ensemble des valeurs obtenues pour un flan sera  3 S The following image taken after the blank has advanced a certain distance will give another value The set of values obtained for a blank will be

vérifié par rapport au diamètre attendu et à la circularité du flan.  checked against the expected diameter and the circularity of the blank.

Un flan avec un défaut de surface présentera un segment blanc (surface du flan) non uniforme, les défauts de surface ayant la particularité de ne pas réfléchir la lumière dans L'axe de la reflexion Les défauts de surface  A blank with a surface defect will have a non-uniform white segment (blank surface), surface defects having the particularity of not reflecting light in the axis of reflection Surface defects

peuvent être captés par deux caméras.  can be captured by two cameras.

Un segment blanc non continu sera donc représentatif d'un défaut de surface.  A non-continuous white segment will therefore be representative of a surface defect.

Le système de traitement de l'information associé aux caméras permet d'af-  The information processing system associated with the cameras enables

fecter une tolérance dimensionnelle aux défauts et de n'éliminer que les  fect a dimensional tolerance to faults and to eliminate only the

flans présentant un défaut de taille supérieure a la spécification.  blanks with a defect of size greater than the specification.

Dans un système dérivé, les défauts de forme peuvent être captés par une caméra différente des caméras de contrôle des défauts de surface Dans ce cas, ces défauts de forme peuvent être mis en évidence par un éclairage en  In a derivative system, the shape defects can be captured by a camera different from the surface defect control cameras In this case, these shape defects can be highlighted by a lighting in

diascopie (ombre chinoise).transmitted light (shadow).

Le système selon l'invention apporte plusieurs types d'avantages par rap-  The system according to the invention provides several types of advantages compared to

port au tri visuel humain: Une qualité et une répétitivité de tri supérieur, Une cadence de tri qui peut être supérieure suivant les caractéristiques  port to human visual sorting: A quality and repeatability of higher sorting, A sorting rate which can be higher depending on the characteristics

Des équipenments utilisés (tapis, caméras, unité de traitement).  Equipment used (carpet, cameras, treatment unit).

A titre d'exemple non limitatif: Les systèmes de traitement peuvent être des processeurs ou des ordinateurs offrant une capacité de traitement suffisante pour assurer le contriôle des  By way of nonlimiting example: The processing systems can be processors or computers offering sufficient processing capacity to ensure the control of

flans avec un débit compatible avec les impératifs industriels.  blanks with a flow rate compatible with industrial requirements.

Les caméras peuvent être des caméras munies d'un capteur linéaire (une image = une ligne) ou des caméras munies d'un capteur matriciel qui fournira une image matricielle o le traitement sera effectué ligne par ligne Le système selon l'invention est particulièrement destiné à assurer le tri automatique de flans monétaires ou de tout autre objet ou produits  The cameras can be cameras provided with a linear sensor (an image = a line) or cameras provided with a matrix sensor which will provide a matrix image where the processing will be carried out line by line The system according to the invention is particularly intended to ensure the automatic sorting of monetary blanks or any other object or product

_SS se présentant sous la forme de disques ou de couronnes.  _SS in the form of discs or crowns.

4 26790244 2679024

Claims (4)

REVENDICATIONS 1 système pour trier automatiquement les flans monétaires ou des produits se présentant comme les flans monétaires sous la forme de disques ou de couronnes, caractérisé en ce que le tri est effectué par un système  1 system for automatically sorting monetary blanks or products in the form of monetary blanks in the form of discs or crowns, characterized in that the sorting is carried out by a system d'analyse d'image muni de deux caméras.  image analysis with two cameras. 2 système selon la revendication ( 1) caractérisé en ce que les défauts de surface et les défauts de forme (contour, géométrie)  2 system according to claim (1) characterized in that the surface defects and the shape defects (contour, geometry) sont captés par deux caméras, chacune analysant une face des pièces.  are captured by two cameras, each analyzing one side of the pieces. 3 système selon la revendication ( 1) caractérisé en ce que les dé-  3 system according to claim (1) characterized in that the fauts de forme (contour, géométrie) sont captés par une caméra spécifique.  shape faults (contour, geometry) are captured by a specific camera. 4 système selon la revendication ( 1) ou ( 2) caractérisé en ce que les défauts de surface ou de forme sont mis en évidence par un éclairage en réflexion.  4 system according to claim (1) or (2) characterized in that the surface or shape defects are highlighted by lighting in reflection. système selon les revendications ( 1) ou ( 3) caractérisé en ce que  system according to claims (1) or (3) characterized in that les défauts de forme sont mis en évidence par un éclairage en diascopie  defects in shape are highlighted by transmitted light (ombre chinoise).(shadow).
FR9109060A 1991-07-12 1991-07-12 AUTOMATIC SORTING SYSTEM OF MONETARY BLANKS. Expired - Fee Related FR2679024B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9109060A FR2679024B1 (en) 1991-07-12 1991-07-12 AUTOMATIC SORTING SYSTEM OF MONETARY BLANKS.
DE19924222984 DE4222984A1 (en) 1991-07-12 1992-07-13 Automatic coin sorting appts. for coin mfr. - has coin distribution and alignment device, illumination unit, image analyser and rejection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9109060A FR2679024B1 (en) 1991-07-12 1991-07-12 AUTOMATIC SORTING SYSTEM OF MONETARY BLANKS.

Publications (2)

Publication Number Publication Date
FR2679024A1 true FR2679024A1 (en) 1993-01-15
FR2679024B1 FR2679024B1 (en) 1997-04-04

Family

ID=9415247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9109060A Expired - Fee Related FR2679024B1 (en) 1991-07-12 1991-07-12 AUTOMATIC SORTING SYSTEM OF MONETARY BLANKS.

Country Status (2)

Country Link
DE (1) DE4222984A1 (en)
FR (1) FR2679024B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003047772A2 (en) * 2001-12-06 2003-06-12 Tubitak-Bilten (Turkiye Bilimsel Ve Teknik Arastirma Kurumu-Bilgi Teknolojileri Ve Elektronik Arastirma Enstitusu) Apparatus and method for arranging plaques into the same orientation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20004826U1 (en) 2000-03-16 2000-06-15 Schäfter + Kirchhoff, 22761 Hamburg Device for the optical inspection of a coin
FR2860581B1 (en) * 2003-10-03 2006-04-14 A Resposabilte Limitee De La B PROCESS AND INSTALLATION FOR QUALITY CONTROL IN BAKERY
CN102809566B (en) * 2012-08-29 2014-12-31 上海造币有限公司 System for automatically detecting surface quality of colorful gold/silver coin (medal)
CN105783721B (en) * 2016-03-31 2018-10-23 浙江工商大学 It is a kind of using triple channel detection guard frame rail mounting hole whether qualified device
CN107961991B (en) * 2017-11-16 2020-02-07 铭板精密科技(中山)有限公司 Image inspection device suitable for telephone shell

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380602A1 (en) * 1977-02-11 1978-09-08 Landis & Gyr Ag Optical coin tester with test piece lighting source - has two photoreceivers connected to decoder and optical imaging system
US4546868A (en) * 1983-03-25 1985-10-15 Patent Research Development Corporation Coin testing apparatus
DE3440485A1 (en) * 1984-11-06 1986-05-07 Karl-Heinz 5860 Iserlohn Hellwig Method for visually checking stamped non-valuable coins
GB2217444A (en) * 1988-03-31 1989-10-25 Tdk Corp Method of and apparatus for optically checking and sorting electrical chip-type components

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380602A1 (en) * 1977-02-11 1978-09-08 Landis & Gyr Ag Optical coin tester with test piece lighting source - has two photoreceivers connected to decoder and optical imaging system
US4546868A (en) * 1983-03-25 1985-10-15 Patent Research Development Corporation Coin testing apparatus
DE3440485A1 (en) * 1984-11-06 1986-05-07 Karl-Heinz 5860 Iserlohn Hellwig Method for visually checking stamped non-valuable coins
GB2217444A (en) * 1988-03-31 1989-10-25 Tdk Corp Method of and apparatus for optically checking and sorting electrical chip-type components

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003047772A2 (en) * 2001-12-06 2003-06-12 Tubitak-Bilten (Turkiye Bilimsel Ve Teknik Arastirma Kurumu-Bilgi Teknolojileri Ve Elektronik Arastirma Enstitusu) Apparatus and method for arranging plaques into the same orientation
WO2003047772A3 (en) * 2001-12-06 2004-03-18 Tubitak Bilten Turkiye Bilimse Apparatus and method for arranging plaques into the same orientation

Also Published As

Publication number Publication date
FR2679024B1 (en) 1997-04-04
DE4222984A1 (en) 1993-03-04

Similar Documents

Publication Publication Date Title
EP3423202B1 (en) Inspection machine and method for objects passing in a stream
US11167317B2 (en) Method and apparatus for handling harvested root crops
EP0606639B1 (en) Method and device for inspecting bottles
FR2666315A1 (en) DEVICE FOR CONTROLLING AND REGULARIZING THE SPACING OF PARCELS, PACKAGES OR SIMILAR OBJECTS, ESPECIALLY POSTAL PARCELS.
CA2284895C (en) Method for examining doubtful zones on the surface of an unwinding strip by image segmentation
EP0115462A2 (en) Method for the automatic recognition of an image on the basis of a corresponding reference image
US20220270395A1 (en) Apparatus for inspecting and sorting
EP1770037B1 (en) Process of detecting double feeding of postal items by image analysis of the upright items
US11376636B2 (en) Method of producing gluten free oats through hyperspectral imaging
KR101750858B1 (en) System and method for detecting defect
FR2679024A1 (en) System for automatically sorting coinage blanks
EP2081013A1 (en) Method of inspecting food and inspection apparatus implementing the same
FR2488860A1 (en) STEEL TUBE PACKAGING CHAIN
FR2841487A1 (en) METHOD FOR DETECTING SINGLE PLIERS AND MULTIPLE PLUG PLUGS IN A POSTAL SORTING FACILITY
DE102019208295A1 (en) Method and device for the optical inspection of containers
WO2017089352A1 (en) Method and device for optically analysing citrus fruit by scattering/transmitting
US9568438B1 (en) Single-camera angled conveyance imaging method and apparatus for whole-surface inspection of rotating objects
US10049440B2 (en) Object detection apparatus
EP1042654B1 (en) Device for colourimetric test of objects such as fruits or vegetables
FR2523932A1 (en) OBJECT PROCESSING MACHINE, PARTICULARLY FILLING OR LABELING BOTTLES
EP1778415B1 (en) Device for sorting and grouping objects, containers and the similar
DE102005035868B4 (en) Inspection device and inspection method for empties boxes and the containers contained therein
JP2642107B2 (en) Automatic grading method and device for fruits and vegetables
Blasco et al. Automatic inspection of the pomegranate (Punica granatum L.) arils quality by means of computer vision. Short communication.
FR2868971A1 (en) Object or product identifying and sorting out method for supermarket, involves comparing individual identification code with objects individual identification code, and controlling guiding unit based on comparison result

Legal Events

Date Code Title Description
ST Notification of lapse
R1 Appeal
DS Decision of the director general to state about an appeal
ST Notification of lapse

Effective date: 20070330