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EP1297325A1 - Procede et dispositif d'inspection de conditionnement en ligne - Google Patents

Procede et dispositif d'inspection de conditionnement en ligne

Info

Publication number
EP1297325A1
EP1297325A1 EP01945821A EP01945821A EP1297325A1 EP 1297325 A1 EP1297325 A1 EP 1297325A1 EP 01945821 A EP01945821 A EP 01945821A EP 01945821 A EP01945821 A EP 01945821A EP 1297325 A1 EP1297325 A1 EP 1297325A1
Authority
EP
European Patent Office
Prior art keywords
cameras
packagings
images
line
multiplexer
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Withdrawn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
EP01945821A
Other languages
German (de)
English (en)
Inventor
Arend Van Der Stadt
Servaes Joordens
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.)
Eagle Vision Systems BV
Original Assignee
Eagle Vision Systems BV
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 Eagle Vision Systems BV filed Critical Eagle Vision Systems BV
Publication of EP1297325A1 publication Critical patent/EP1297325A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/9036—Investigating the presence of flaws or contamination in a container or its contents using arrays of emitters or receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
    • G01N21/9018—Dirt detection in containers
    • G01N21/9027—Dirt detection in containers in containers after filling

Definitions

  • a proposed solution is described in the international patent application PCT/NL96/00049.
  • a head with drive motor for rotating a beer bottle is herein placed on a carrousel and, using a CCD camera, a number of images are recorded by the CCD camera after the rotation movement has been interrupted, and these images are analysed using image processing techniques.
  • a drawback of this method is that a drive motor and camera must be arranged for each carrousel position in order to enable the inspection of for instance 60,000 bottles per hour.
  • the present invention provides a method for inspecting packagings for liquid medium, such as glass bottles optionally filled with beer or other drink, wherein the packagings are moved in line at predetermined speed and/or predetermined mutual spacing, and wherein images of the packagings are recorded by a number of cameras disposed adjacently of or successive to each other, and these images from the different cameras are combined in order to detect foreign substances therein.
  • the beer bottles are rotated and stopped. It is also conceivable, in any case theoretically but perhaps also practically, for movement of the liquid relative to the bottle to take place in a different way, for instance by causing the bottle to take a sharp bend one or more times at high speed.
  • This known device comprises a carrousel in which the bottles are clamped and wherein a camera is placed for each position.
  • the- cameras being placed separately of the carrousel while the bottles move along in front of them.
  • the bottles are transported in line and brought to pitch, rotated and stopped during the inline transport.
  • images can then be obtained of a packaging which are processed via a multiplexer, for instance subtracted from each other after some pre-processing, in order to enable detection of damage or loose particles such as glass splinters therein.
  • the present invention further provides a device for inspecting packagings, comprising:
  • - a number of cameras disposed along the line for recording images of the packaging; and - a video-multiplexer to which the cameras are connected for the purpose of processing the successively obtained images of a packaging.
  • the bottle packagings are rotated slowly along the cameras, for instance for recognition of the labels on the bottles.
  • Fig. 1 shows a partly schematic view in perspective of a preferred embodiment of the present invention
  • Fig. 2 shows a side view from another angle of another embodiment according to the present invention.
  • Fig. 3 shows a block diagram of an embodiment shown in fig. 1 and 2.
  • a number of beer bottles Bl, B2, B3 ... Bll is supplied on a feed conveyor 1, whereafter bottles B6-B11 are brought to pitch in a first part 2 of the preferred embodiment 3 of the present invention.
  • conveyor belts 4, 5 Arranged on either side in this part 2 are conveyor belts 4, 5 to also cause the relevant bottles to rotate.
  • Light sources 21, 22, 23, 24 and 25 are situated under the bottles at which the cameras are directed. The cameras are directed at an angle of about 45° to the bottom of the bottles. In a preferred embodiment (not further shown) light sources 21-25 can be combined into a single light source.
  • a number of central processing units are connected to video- multiplexer 16 to process a series of images of a bottle recorded by the cameras, and wherein the correct image is coupled to the correct product by making use of the video-multiplexer.
  • CPUs central processing units
  • so-called intelligent cameras can be applied, wherein a part of the processing takes place at the camera, and wherein images are then for instance transferred from the one camera to the other without the intervention of a CPU.
  • the distance D between two cameras is as small as possible, for instance 10 cm, due to the size of the products. If there are ten cameras this will produce a length of the image system of 1 m and a minimal line speed of 2. m per second. A number of images corresponding to the number of cameras is recorded of each product. Operation can take place at a shutter speed of for instance 200 msec.
  • each product there is recorded a number of images corresponding for instance with the number of cameras.
  • a starting point can for instance be taken 50 images (frames per second, or 100 fields) .
  • the images or fields must overlap or not, depending on the size of the camera and on the distance from the camera to the images of the packagings for recording.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

La présente invention concerne un procédé permettant d'inspecter des conditionnements destinés à un milieu liquide, tels que des bouteilles en verre éventuellement remplies avec de la bière ou avec une autre boisson. Les conditionnements sont déplacés en ligne à une vitesse prédéterminée et/ou selon un écartement prédéterminé, les images des conditionnements étant enregistrées au moyen de plusieurs caméras disposées côte-à-côte ou l'une derrière l'autre. Les images provenant des différentes caméras sont combinées de manière à détecter des substances étrangères.
EP01945821A 2000-06-23 2001-06-22 Procede et dispositif d'inspection de conditionnement en ligne Withdrawn EP1297325A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1015515 2000-06-23
NL1015515A NL1015515C2 (nl) 2000-06-23 2000-06-23 Werkwijze en inrichting voor het in lijn inspecteren van verpakkingen.
PCT/NL2001/000467 WO2002001207A1 (fr) 2000-06-23 2001-06-22 Procede et dispositif d'inspection de conditionnement en ligne

Publications (1)

Publication Number Publication Date
EP1297325A1 true EP1297325A1 (fr) 2003-04-02

Family

ID=19771588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945821A Withdrawn EP1297325A1 (fr) 2000-06-23 2001-06-22 Procede et dispositif d'inspection de conditionnement en ligne

Country Status (4)

Country Link
EP (1) EP1297325A1 (fr)
AU (1) AU2001267932A1 (fr)
NL (1) NL1015515C2 (fr)
WO (1) WO2002001207A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1779096B1 (fr) 2004-07-30 2013-07-31 Eagle Vision Systems B.V. Appareil et procédé de vérification de récipients
FR2916048B1 (fr) 2007-05-09 2010-05-28 Tiama Procede et dispositif d'inspection d'articles transparents ou translucides en vue d'optimiser le fonctionnement d'une machine de controle
DE102009035585A1 (de) 2009-07-31 2011-02-03 Krones Ag Inspektionsvorrichtung und Inspektionsverfahren zum Erkennen von Fremdkörpern in einem gefüllten Behälter
DE102010043635A1 (de) * 2010-11-09 2012-05-10 Krones Aktiengesellschaft Vorrichtung zum Inspizieren von Behältern
WO2017102007A1 (fr) * 2015-12-17 2017-06-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Dispositif d'acquisition à canaux multiples et procédé associé
DE102017215719A1 (de) * 2017-09-07 2019-03-07 Krones Ag Inspektionsvorrichtung und Verfahren zur Erkennung von Fremdkörpern in Behältern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136930A (en) * 1977-01-10 1979-01-30 The Coca-Cola Company Method and apparatus for detecting foreign particles in full beverage containers
JPS5546172A (en) * 1978-09-29 1980-03-31 Kirin Brewery Co Ltd Detector for foreign material
US4912318A (en) * 1987-08-04 1990-03-27 Kanebo Ltd. Inspection equipment for small bottles
US5073708A (en) * 1989-09-11 1991-12-17 Shibuya Kogyo Co., Ltd. Apparatus for inspecting the presence of foreign matters
GB9521285D0 (en) * 1995-10-18 1995-12-20 Pa Consulting Services Improvements in or relating to detection of foreign objects in fluid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0201207A1 *

Also Published As

Publication number Publication date
NL1015515C2 (nl) 2001-12-28
AU2001267932A1 (en) 2002-01-08
WO2002001207A1 (fr) 2002-01-03

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