WO1980002517A1 - Installation pour l'identification des pneumatiques d'un vehicule en cours de fabrication - Google Patents

Installation pour l'identification des pneumatiques d'un vehicule en cours de fabrication Download PDF

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Publication number
WO1980002517A1
WO1980002517A1 PCT/DE1980/000068 DE8000068W WO8002517A1 WO 1980002517 A1 WO1980002517 A1 WO 1980002517A1 DE 8000068 W DE8000068 W DE 8000068W WO 8002517 A1 WO8002517 A1 WO 8002517A1
Authority
WO
WIPO (PCT)
Prior art keywords
computer
camera
image information
identification
tires
Prior art date
Application number
PCT/DE1980/000068
Other languages
German (de)
English (en)
Inventor
A Krueckel
W Fritz
G Danz
Original Assignee
Era General Automation Gmbh
Hofmann Gmbh & Co Kg Maschinen
A Krueckel
W Fritz
G Danz
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 Era General Automation Gmbh, Hofmann Gmbh & Co Kg Maschinen, A Krueckel, W Fritz, G Danz filed Critical Era General Automation Gmbh
Publication of WO1980002517A1 publication Critical patent/WO1980002517A1/fr

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
    • B07C5/04—Sorting according to size
    • B07C5/10—Sorting according to size measured by light-responsive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition

Definitions

  • the final assembly of motor vehicles also includes equipping them with tires. All tires intended for a vehicle are transported together with all other assembly sub-groups to the responsible assembly location by means of suitable conveyor devices. With a given assembly sequence, different tires are often provided for different vehicle types. The actual tire assembly is therefore usually preceded by an identification of the tires.
  • the invention is based on the object of objectifying the identification of the tires in the finished assembly of motor vehicles with the elimination of human error sources by providing a device which can carry out this identification practically automatically.
  • a device to be arranged at the installation site of the tires which comprises at least one television camera set up to convert an optical input signal into an analog output signal and which converts its analog output signal into a digital evaluation signal via an interface.
  • Circuit is connected to a computer which is programmed for a yes / no statement and / or the statement about a specific type of tire for display on at least one connected peripheral device in relation to the image information conveyed by the television camera .
  • FIG. 1 shows a schematic illustration in FIG. 1, a block diagram of the individual parts of a device for identification
  • the device for identifying. cation of the tires in the final assembly of motor vehicles at least one television camera 1, which is set up to convert an optical input signal into an analog output signal.
  • the television camera 1 can be a commercially available video device in the form of either a video camera or a self-scanning camera as well as a line scan camera.
  • a color camera can also be used, the three color channels of which are then connected, for example, to the analog inputs of a multiplex circuit, which then also for the simultaneous connection of a plurality of television cameras of the type mentioned above, which can be switched through individually or by means of external switches Type can be used.
  • the analog output signal obtained from the television camera 1 is forwarded by means of a coaxial cable to an interface circuit which is formed from the two control units 2 and 3 in the embodiment according to FIGS. 2 and 3.
  • the interface circuit is further connected to a computer 4, which is a commercially available microprocessor, a mini computer or a process computer.
  • OM y ⁇ J? is a computer and to the memory of which a control unit 3 of the interface circuit is connected in order to store all the data stored in the computer 4 with the digitally provided digitally obtained from a conversion of the analog signal transmitted by the television camera 1 Compare the evaluation signal. The result of this comparison is sent to a monitor 5 connected as a peripheral device of the computer 4 for a yes / no statement and / or for the statement about a specific type of tire.
  • a switch control can also be initiated depending on how this comparison turns out in relation to an instantaneous specification in order to make the correct decision by remote control according to the respective tire identification.
  • the control unit 2 of the interface circuit is designed for a variable selection of picture information and is connected for this purpose to the connection 6 of the television camera 1 which is decisive for the standardized picture blanking and synchronization signal mixture. From this mixture, horizontal and vertical blanking signals are filtered out by means of an amplitude sieve 7, which are used for the control of a counter or clock circuit 8 as well as a column counter 9 and a line counter 10.
  • the image blanking and synchronizing signal mixture of the television camera 1 obtained via the connection 6 is fed to a comparator 11, which is a Compares the brightness of the analog image signal transmitted to it with a digitally adjustable reference voltage REF.
  • a binary image information is obtained at the output of the comparator, which represents one of two possible brightness levels of the evaluated image signal.
  • the comparator 11 an evaluation of only essential information elements is made possible and thus the multitude of information which is optically recorded by the television camera 1 is reduced. A further reduction of this information is achieved with the subsequent pixel selection 12, in that every desired rectangular part size can be masked out from an image section to be evaluated of, for example, a maximum of 512 columns and 256 lines.
  • the two most important outputs of the control device 2 are thus the image information carrier 13 and the associated column or time clock 14, via which the connection to the other control device 3 is established.
  • the control device 3 comprises a serial-parallel converter 15 which is designed for connection to the image information carrier 13 and is connected to the computer 4 via an input circuit 16.
  • the computer 4 is connected to the input circuit 19 of the monitor 5 via an output circuit 17 and a further serial-parallel converter 18 for the transmission of the image information.
  • IR Program design of the computer .4 is thus displayed on the monitor 5 either a yes / no statement or the statement about a specific type of tire in relation to the image information conveyed by the television camera 1 and limited to essential elements by means of the control unit 2 poses.
  • the identification of the tires during the final assembly of motor vehicles is brought to a recognizable, simple, automated basis in the scope of the device described above.
  • the facility is designed to be expandable, so that other control tasks can also be linked with this identification.
  • the image information conveyed by the television camera can be used, for example, for further plausibility checks, or other evaluations are carried out if the corresponding peripheral devices are connected to the computer. If the interface circuit is refined accordingly, the digitization of the variable image information selection can thus also be carried out at higher conveying speeds of the tires, whereby completely correct identification is also ensured for a frequent change of the tire types .

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • General Factory Administration (AREA)

Abstract

L'identification des pneumatiques d'un vehicule en cours de fabrication est effectuee en utilisant une camera de television. La camera (1) est reliee a un ordinateur (4) lui-meme connecte a un appareil peripherique d'affichage (5). L'appareil d'affichage indique par oui ou non si le pneumatique convient et peut fournir une indication sur le type de pneumatique prevu pour chaque vehicule.
PCT/DE1980/000068 1979-05-16 1980-05-14 Installation pour l'identification des pneumatiques d'un vehicule en cours de fabrication WO1980002517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792919808 DE2919808A1 (de) 1979-05-16 1979-05-16 Einrichtung zur identifikation der reifen bei der fertigmontage von kraftfahrzeugen
DE2919808 1979-05-16

Publications (1)

Publication Number Publication Date
WO1980002517A1 true WO1980002517A1 (fr) 1980-11-27

Family

ID=6070894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1980/000068 WO1980002517A1 (fr) 1979-05-16 1980-05-14 Installation pour l'identification des pneumatiques d'un vehicule en cours de fabrication

Country Status (3)

Country Link
EP (1) EP0028616A1 (fr)
DE (1) DE2919808A1 (fr)
WO (1) WO1980002517A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089212A1 (fr) * 1982-03-13 1983-09-21 Kabushiki Kaisha Ishida Koki Seisakusho Procédé et dispositif pour trier des articles
US4818380A (en) * 1982-03-13 1989-04-04 Ishida Scales Mfg. Co., Ltd. Method and apparatus for sorting articles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006014571A1 (de) * 2006-03-29 2007-10-04 Di Ke Opto-Electronics Co., Ltd Verwendungsverfahren von Geräten für die Sichtprüfung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233736A1 (de) * 1972-07-08 1974-01-24 Messerschmitt Boelkow Blohm Sortieranlage fuer fahrzeugreifen
US3801957A (en) * 1972-08-14 1974-04-02 Goodyear Tire & Rubber Automatic tire code reader
DE2351400A1 (de) * 1972-10-13 1974-05-02 Hitachi Ltd Mustererkenner
US3930141A (en) * 1973-10-09 1975-12-30 Yokohama Rubber Co Ltd Automatic tire classifying apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2233736A1 (de) * 1972-07-08 1974-01-24 Messerschmitt Boelkow Blohm Sortieranlage fuer fahrzeugreifen
US3801957A (en) * 1972-08-14 1974-04-02 Goodyear Tire & Rubber Automatic tire code reader
DE2351400A1 (de) * 1972-10-13 1974-05-02 Hitachi Ltd Mustererkenner
US3930141A (en) * 1973-10-09 1975-12-30 Yokohama Rubber Co Ltd Automatic tire classifying apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM Technical Disclosure Bulletin, Volume 11, No. 3, August 1968 (Armonk, New York, US), A.C. TURITS, "Video Measuring System", pages 287 and 288, see the whole document *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0089212A1 (fr) * 1982-03-13 1983-09-21 Kabushiki Kaisha Ishida Koki Seisakusho Procédé et dispositif pour trier des articles
US4693378A (en) * 1982-03-13 1987-09-15 Kabushiki Kaisha Ishida Koki Method and apparatus for sorting articles
US4818380A (en) * 1982-03-13 1989-04-04 Ishida Scales Mfg. Co., Ltd. Method and apparatus for sorting articles

Also Published As

Publication number Publication date
EP0028616A1 (fr) 1981-05-20
DE2919808A1 (de) 1980-12-04

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