EP0462256B1 - Procede pour la repartition de colis ou analogue - Google Patents

Procede pour la repartition de colis ou analogue Download PDF

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Publication number
EP0462256B1
EP0462256B1 EP91902168A EP91902168A EP0462256B1 EP 0462256 B1 EP0462256 B1 EP 0462256B1 EP 91902168 A EP91902168 A EP 91902168A EP 91902168 A EP91902168 A EP 91902168A EP 0462256 B1 EP0462256 B1 EP 0462256B1
Authority
EP
European Patent Office
Prior art keywords
address information
images
scanning
surface portions
parcels
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.)
Expired - Lifetime
Application number
EP91902168A
Other languages
German (de)
English (en)
Other versions
EP0462256A1 (fr
Inventor
Siegmar Malow
Michael Pausinger
Albert Glade
Hubert Gitschier
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.)
Siemens AG
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0462256A1 publication Critical patent/EP0462256A1/fr
Application granted granted Critical
Publication of EP0462256B1 publication Critical patent/EP0462256B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B07C3/00—Sorting according to destination
    • B07C3/10—Apparatus characterised by the means used for detection ofthe destination
    • B07C3/14—Apparatus characterised by the means used for detection ofthe destination using light-responsive detecting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/939—Video scanning

Definitions

  • the present invention relates to a method and an apparatus for distributing packets or the like. corresponding to signs applied to their surface.
  • a sorting system for mail parcels and the like with an inlet conveyor and a sorting station is already known from DE-AS 20 55 837.
  • the parcels are brought to the sorting place in a disordered manner according to this document, there they are visually checked by operators and, depending on the result of the check, distributed in a suitable manner, i.e. handed over to appropriate transport facilities.
  • Carrying out the visual inspection in this known sorting system requires that the respective package is manually turned and rotated until the surface with the applied address has been found. For further distribution, the address must then be read by the operators and the zip code or delivery area determined for each package.
  • Disadvantages of this sorting system are, in particular, the multiple, time-consuming, manual turning and turning of the parcels until the address can be read, as well as the cumbersome further processing of the address information obtained.
  • the disadvantage of a system with automatic turning and rotating of the packages for positioning the address is the high design and control effort required for this.
  • the disadvantage here is that only two of the six partial surfaces of the packets are examined, so that movement or positioning of the packets is necessary in the case of a completely disordered stream of packets.
  • the package surface is only scanned with a predetermined image resolution, irrespective of whether address information is on the respective scanned surface or not.
  • EP 0281007 and 0298769 Devices for distinguishing between printed and handwritten address information are known from EP 0281007 and 0298769, in which a partial surface of a program is selected for fine scanning. However, with these devices, only two surfaces of the goods to be transported can be scanned.
  • the object of the present invention is to improve the prior art, in particular the specification of a method and a device for distributing packets or the like, in which the address information is largely automatically recorded and the packets only little when the address information is obtained must be positioned or moved, and which enables easier further processing of the obtained address information.
  • the solution of the task according to the invention makes it possible to record address information from previously separated packets without these packets having to be specially positioned for this purpose. If there is an area on the image of a partial surface of a package that contains address information, this surface is further evaluated. This can be done by obtaining an image of higher resolution from a corresponding partial area of the relevant surface (recording field) and feeding it to an automatic character recognition device and / or a video coding device, or - if the resolution of the image mentioned is high enough - feeding it to the devices mentioned becomes.
  • the recognized addresses are given a distribution code for further distribution and sorting, e.g. a zip code assigned that controls the subsequent distribution of the packets.
  • Figure 1 shows schematically a device for determining the Area containing address information and for scanning the address on a packet.
  • the device according to FIG. 1 makes it possible to obtain address information from characters applied to the package surface without the packages having to be positioned or moved after they have been separated and aligned beforehand.
  • the separation of the packages from the package stream and the alignment along an edge, so that a defined alignment with respect to the transport direction is achieved, can be carried out by suitable mechanical components, such as e.g. Vibrating belts, combinations of conveyor belts with different speeds and the discharge over edges.
  • suitable mechanical components such as e.g. Vibrating belts, combinations of conveyor belts with different speeds and the discharge over edges.
  • the parcels are preferably aligned along an edge parallel to the transport direction.
  • a package 1 is moved along a conveyor line 2, a gap 3 being provided in the conveyor line which is dimensioned so small that the transport of the package over it is not impaired.
  • the package is scanned from six spatial directions by the cameras 10, 20, 30, 40, 50 and 60, the camera 50 preferably being designed as a line camera which scans the downward-facing partial surface of the package, while the remaining five cameras which as standard area scan cameras, scan the exposed five sides of the package.
  • the images recorded by the cameras are simultaneously displayed on a monitor 65 with six partial image areas.
  • An operator can evaluate the six images of a package at the same time, ie the position of the address area identify and mark on one of the sub-monitors.
  • the image can also be displayed successively on a simple monitor.
  • solution 1 has the advantage that the operator only works on the screen and not on an additional surface and does not have to use any instrument, but suffers from the disadvantage of a relatively imprecise positioning of the address field.
  • solutions 2 and 3 offer the possibility of finer positioning.
  • the section of the packet surface is determined by the recording field, from which an image of fine lateral resolution is obtained, which is evaluated for the character recognition.
  • Cameras 70, 80, 90, 100, 110 are provided for this purpose, which also allow the entire package to be captured without it having to be positioned or moved.
  • the recording windows of these cameras can be positioned as desired within the respective surface of the package by means of optomechanics, the resolution of these cameras being selected to be suitable for automatic font recognition.
  • the package is transported by the conveyor into the area of fine scanning.
  • the rough scanning can be performed by the Slot 3 used line scan camera to scan the underside of the package so that it detects the entire width of the package at a resolution sufficient for font recognition.
  • the compressed image of the camera can thus be used to evaluate the coarse scan, while a section of this image in full resolution can be used for automatic font recognition. This enables the saving of a camera for fine scanning.
  • a further slit and an additional camera are provided for the fine scanning of the underside of the package.
  • the position of the address area determined from the coarse scanning controls the selection of one of the six cameras and the positioning of its recording window.
  • the evaluation of the six images of the coarse scanning is carried out manually in the embodiment of the device shown above, in a further embodiment this evaluation can also take place automatically. All that is required for this is to examine all six images of the coarse scanning for areas which, in a selection of features, match the model of an address label or an address area on a package.
  • Features of this type are, for example, the color contrast of a surface to the environment, gray value contrast of a surface to the environment, shape of this surface, type and number of blackening areas within the surface, position in relation to other striking objects and in relation to the contour of the package.
  • the one from the images of the coarse scanning can be selected automatically that most likely has an address area and then a fine scanning of this area can be carried out.
  • the images can already be fed to an automatic character recognition device; a fine scan takes place then only if the images of the coarse scan are rejected by the character recognition.
  • the evaluation of the images of the fine scan can, in addition or as an alternative to the above-mentioned character recognition device, be carried out by one or more video coding devices. This is particularly advantageous when there is a mixed volume of packets with differently readable addresses, so that rejected (non-machine-readable) addresses can be supplied with corrective coding.
  • a distribution code is assigned by known methods, which is also applied to the packets and which controls the further distribution in sorting devices (not shown here).

Landscapes

  • Multimedia (AREA)
  • Engineering & Computer Science (AREA)
  • Sorting Of Articles (AREA)
  • Image Processing (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Character Discrimination (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Character Input (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Claims (13)

  1. Procédé pour la répartition de colis en fonction de l'information d'adresse apposée sur leur surface, chaque colis individuel étant soumis à un balayage optique le long d'une voie de transport, des images de faces partielles des colis étant obtenues, et sur cette base, une information de tri est attribuée à l'information d'adresse évaluée pour la répartition du colis, caractérisé en ce que l'on procède aux opérations suivantes:
    - on procède au balaye optique de la totalité des faces partielles, la face inférieure du colis étant balayée à travers une fente ménagée dans la voie de transport et au moins une face partielle faisant l'objet d'un balayage grossier,
    - on obtient des images de toutes les faces partielles,
    - on détecte si l'image de chaque face partielle contient des informations d'adresse et
    - si une image contient des informations d'adresse, on effectue une sélection de la face partielle correspondante pour y balayer avec précision une région contenant l'information d'adresse pour lire ladite information d'adresse.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise des images fixes ou en déplacement du balayage grossier.
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que l'image de la surface balayée avec précision est amenée à un dispositif de reconnaissance automatique des signes.
  4. Procédé selon la revendication 3, caractérisé en ce que les images rejetées par le dispositif de reconnaissance automatique des signes sont amenées à un ou plusieurs appareils de codage vidéo pour y entrer l'information d'adresse exacte.
  5. Procédé selon les revendications 1 à 4, caractérisé en ce que pour détecter les images contenant l'information d'adresse, une représentation des images de toutes les faces partielles a lieu simultanément ou successivement sur un ou plusieurs moniteurs.
  6. Procédé selon la revendication 5, caractérisé en ce que la sélection se fait par contact du doigt sur un écran tactile, au moyen d'un photostyle sur un écran de détection ou au moyen d'une souris ou similaire.
  7. Procédé selon les revendications 1 à 6, caractérisé en ce qu'un code correspondant à l'information de tri est appliqué sur les colis.
  8. Dispositif de répartition de colis en fonction de l'information d'adresse appliquée sur leur surface, comportant des moyens d'isolement des colis et de balayage optique le long d'une voie de transport, des moyens d'obtention d'images des colis balayés et d'identification et de lecture d'information d'adresse représentée sur les images ainsi que d'affectation d'information de tri pour la répartition des colis vers l'information d'adresse, caractérisé en ce qu'il est prévu les moyens suivants:
    - des moyens de balayage optique de la totalité de toutes les faces partielles, en particulier des moyens de balayage à travers une fente ménagée dans la voie de transport ainsi que de balayage grossier d'au moins une face partielle
    - des moyens d'obtention d'images de toutes les faces partielles, ainsi que
    - des moyens de balayage de précision d'une région d'une face partielle contenant une information d'adresse et d'obtention d'une image de résolution donnée de cette région.
  9. Dispositif selon la revendication 8, caractérisé en ce qu'il est prévu un ou plusieurs moniteurs pour représenter simultanément des images de toutes les faces partielles.
  10. Dispositif selon la revendication 8, caractérisé en ce qu'il est prévu six caméras pour le balayage optique de toutes les faces partielles.
  11. Dispositif selon la revendication 8, caractérisé en ce qu'il est prévu une caméra de lignes à haute résolution pour le balayage de la face inférieure des colis.
  12. Dispositif selon les revendications 8 à 11, caractérisé en ce qu'il est prévu des moyens de reconnaissance automatique de signes pour l'affectation de codes de répartition aux adresses ou similaires.
  13. Dispositif selon les revendications 8 à 12, caractérisé en ce qu'il est prévu un nombre d'appareils de codage vidéo pour l'affectation de codes de répartition aux adresses ou similaires.
EP91902168A 1989-12-23 1990-12-19 Procede pour la repartition de colis ou analogue Expired - Lifetime EP0462256B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3942932 1989-12-23
DE3942932A DE3942932A1 (de) 1989-12-23 1989-12-23 Verfahren zum verteilen von paketen o. ae.
PCT/EP1990/002234 WO1991009688A1 (fr) 1989-12-23 1990-12-19 Procede pour la repartition de colis ou analogue

Publications (2)

Publication Number Publication Date
EP0462256A1 EP0462256A1 (fr) 1991-12-27
EP0462256B1 true EP0462256B1 (fr) 1994-06-22

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Application Number Title Priority Date Filing Date
EP91902168A Expired - Lifetime EP0462256B1 (fr) 1989-12-23 1990-12-19 Procede pour la repartition de colis ou analogue

Country Status (19)

Country Link
US (1) US5311999A (fr)
EP (1) EP0462256B1 (fr)
JP (1) JP3207419B2 (fr)
AT (1) ATE107544T1 (fr)
AU (1) AU635607B2 (fr)
CA (1) CA2045694A1 (fr)
CZ (1) CZ278655B6 (fr)
DE (2) DE3942932A1 (fr)
DK (1) DK0462256T3 (fr)
ES (1) ES2056635T3 (fr)
FI (1) FI913969A7 (fr)
HR (1) HRP930034A2 (fr)
IE (1) IE65565B1 (fr)
NO (1) NO913152L (fr)
NZ (1) NZ236633A (fr)
PL (1) PL165615B1 (fr)
RU (1) RU2070101C1 (fr)
WO (1) WO1991009688A1 (fr)
YU (1) YU47922B (fr)

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US7215363B2 (en) 2001-05-16 2007-05-08 Siemens Ag System and method for scanning a surface of a moving object
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IE65565B1 (en) 1995-11-01
CZ278655B6 (en) 1994-04-13
RU2070101C1 (ru) 1996-12-10
NZ236633A (en) 1994-04-27
IE904708A1 (en) 1991-07-17
HRP930034A2 (en) 1995-02-28
PL165615B1 (pl) 1995-01-31
WO1991009688A1 (fr) 1991-07-11
US5311999A (en) 1994-05-17
JPH04503921A (ja) 1992-07-16
YU241990A (sh) 1994-11-15
EP0462256A1 (fr) 1991-12-27
DE59006241D1 (de) 1994-07-28
CA2045694A1 (fr) 1991-06-24
FI913969A0 (fi) 1991-08-22
ES2056635T3 (es) 1994-10-01
YU47922B (sh) 1996-05-20
NO913152D0 (no) 1991-08-13
DE3942932A1 (de) 1991-06-27
FI913969A7 (fi) 1991-08-22
AU7059491A (en) 1991-07-24
AU635607B2 (en) 1993-03-25
CZ656690A3 (en) 1993-12-15
DK0462256T3 (da) 1994-08-01
NO913152L (no) 1991-08-13
PL288520A1 (en) 1991-12-02
JP3207419B2 (ja) 2001-09-10
ATE107544T1 (de) 1994-07-15

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