WO2020043362A1 - Système et procédé d'assistance d'un usinage de surfaces - Google Patents

Système et procédé d'assistance d'un usinage de surfaces Download PDF

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Publication number
WO2020043362A1
WO2020043362A1 PCT/EP2019/067615 EP2019067615W WO2020043362A1 WO 2020043362 A1 WO2020043362 A1 WO 2020043362A1 EP 2019067615 W EP2019067615 W EP 2019067615W WO 2020043362 A1 WO2020043362 A1 WO 2020043362A1
Authority
WO
WIPO (PCT)
Prior art keywords
glasses
workpiece
defect
scanner
graphics processor
Prior art date
Application number
PCT/EP2019/067615
Other languages
German (de)
English (en)
Inventor
Stefan Friese
Original Assignee
Psa Automobiles Sa
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 Psa Automobiles Sa filed Critical Psa Automobiles Sa
Priority to EP19736646.1A priority Critical patent/EP3844580A1/fr
Publication of WO2020043362A1 publication Critical patent/WO2020043362A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/005—Inspection and final control devices
    • 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
    • G01N21/8803—Visual inspection
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/41875—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by quality surveillance of production
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/012—Head tracking input arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
    • 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
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8854—Grading and classifying of flaws
    • G01N2021/888—Marking defects
    • 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
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
    • G01N2021/8893—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques providing a video image and a processed signal for helping visual decision
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/32—Operator till task planning
    • G05B2219/32014—Augmented reality assists operator in maintenance, repair, programming, assembly, use of head mounted display with 2-D 3-D display and voice feedback, voice and gesture command
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/32—Operator till task planning
    • G05B2219/32217—Finish defect surfaces on workpiece
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention relates to a system and a method for supporting a surface treatment, in particular the repair of
  • WO 01/96829 A1 describes a method for testing a product
  • An object of the present invention is to provide a system and a method for supporting surface processing on a workpiece, which enable a quick and reliable detection and correction of errors.
  • the task is solved on the one hand by a system for supporting surface processing on a workpiece, which
  • a graphics processor which is set up to display, in an image displayed in the VR glasses, an indication of a defect on or adjacent to a line of sight extending between the eye of a user of the VR glasses and the defect.
  • the detection of errors is no longer restricted to the direction of view of the wearer of the VR glasses, and there is in particular no need for the wearer of the VR glasses to circle the workpiece in order to enable error detection from different directions of view.
  • the scanner can have several cameras, which are aligned from different directions to a detection region in which the workpiece can be placed. Furthermore, drive means can be provided in order to move the workpiece and the cameras relative to one another. In particular, a variant in which the workpiece is moved past stationary cameras of the scanner is particularly suitable for integration in an assembly line production.
  • the cameras can be mounted on a portal, under which the workpiece is transported, and thus capture it from various directions that may be difficult for an employee to access.
  • the graphics processor can be set up to display an indication of a defect even if the defect is on a side of the workpiece facing away from the VR glasses. This ensures that a user of the VR glasses, when he approaches the workpiece, knows immediately whether there are defects to be repaired and does not have to go around the workpiece in a time-consuming manner.
  • the graphics processor should furthermore be set up to use different forms of information, depending on whether the defect is located on a side of the workpiece facing the VR glasses or on a side facing away from the VR glasses.
  • a defect is remedied, a continued indication of the defect can irritate the user of the VR glasses.
  • means are preferably also provided for detecting a gesture by the user of the VR glasses in order to
  • the gesture to be detected can be a pointing at the defect, a look at a predetermined object in the vicinity of the workpiece or a processing of the defect by the user of the VR glasses.
  • an image evaluation unit can be connected to the camera to assess whether a defect is fixed or not, and the indication of the defect only to be deleted if the defect is assessed as having been remedied.
  • the graphics processor is also preferably set up to outline the
  • Play workpiece in the image displayed in the VR glasses for example, to make it easier for the user of the VR glasses among several workpieces in his environment to identify the workpiece to be machined.
  • This outline should coincide with the outline of the workpiece visible from the user's perspective.
  • the indication of a defect can be displayed exactly on the line of sight
  • Such an indication can include, for example, a circle extending around the line of sight and the defect or an arrow pointing at it.
  • the graphics processor can also be set up to insert details of the workpiece in alphanumeric form into the image displayed in the VR glasses.
  • This information can be technical information about the workpiece, such as a type designation or a workpiece-specific identifier, information about the defect or also general information on handling the workpiece and in particular how to remedy the defect.
  • the object is further achieved by a method for supporting an
  • Graphic processor for receiving image data is connected, relative to the workpiece,
  • the defects to which the method is applied are paint defects and the workpiece is a vehicle body.
  • Fig. 1 is a schematic representation of the system according to the invention.
  • Fig. 2 shows an example of the image that a user of the VR glasses in
  • Figure 1 presents the system shown; and.
  • Fig. 3 shows an alternative, displayed in the VR glasses.
  • Fig. 1 shows schematically a system according to the invention, which is used in motor vehicle production for the detection of paint defects on vehicle bodies 1, which are conveyed on a conveyor belt or by other suitable drive means 2 from a painting system, not shown, known per se.
  • Vehicle bodies 1 are transported by the drive means 2 through a scanner 3, which comprises a portal 5 equipped with various cameras 4.
  • the cameras 4 are aligned with an interior of the portal 5 in order to detect the outer surfaces of the bodies 1 transported through.
  • An image evaluation unit 6 connected to the cameras 4 analyzes the images supplied by the cameras and generates a data record for each body 1 that passes through the portal 3, which contains an individual identifier of the body 1 and, if applicable, locations on the body 1 at which a Painting error has been recognized, and may contain information about the nature of the painting error.
  • the data records thus obtained are stored in a database 7.
  • a process computer 8 accesses the data records in the database 7. By further communicating with a controller of the drive means 2 and recording or specifying their speed, the process computer 8 is able at any time to calculate at which location along the assembly line a particular body 1 is located.
  • the process computer 8 is also coupled to a plurality of cameras 9, around which
  • One or more of these cameras 9 are fixed in the vicinity of the assembly line; a further camera 9 can be built into the VR glasses 10 and be movable therewith in order to monitor the field of view of the employee 11 wearing the VR glasses 10.
  • the process computer 8 is able, for example by triangulation, to determine the location of the Employee 11 (and, albeit with limited accuracy, his direction of view).
  • a comparison of the image supplied by the camera of the VR glasses 10 with those of the fixed cameras 9 enables the determination of the viewing direction of the employee 11 or the orientation of the VR glasses 10 worn by him with high accuracy.
  • Fig. 2 shows schematically the image that the employee 1 1 presents through the VR glasses 10.
  • the VR glasses 10 comprise one in a manner known per se
  • Display screen the transparency and color of which can be controlled locally, so that the user can perceive the real environment, here a sequence of the bodies 1 on the assembly line, through the transparent parts of the screen of the VR glasses 10, and at the same time graphic displays displayed on the screen Can perceive elements.
  • a graphics processor 12 of the process computer 8 is capable of calculating the outline of each of the bodies 1, as presented from the perspective of the employee 11, and one of them
  • the process computer 8 uses the information in the database 7 to select the one that is most advanced on the assembly line, by one
  • the frame 13 may be a line extending around the body 1 in question; in the case shown here, the selected body 1 is additionally emphasized in relation to the others in that the transparency of the screen of the VR glasses 10 outside the frame 13 is reduced, so that the bodies not selected are darker and / or with a reduced contrast,
  • the graphics processor 12 calculates where, from the point of view of the employee 1, 1 paint defects on the body 1 must be visible, and places an indication 14 in VR glasses 10 of each such defect on one Line of sight 15, which runs from the eye of the employee 11 to this paint defect. 2, these notices 14 have the form of crosses, the point of intersection of which corresponds to the position of the paint defect on the body 1, ie lies on the line of sight that the eye of the user 11 through the screen of the VR glasses 10 connects with the paint defect 16. Note 14 thus hinders the view of the paint defect, but this is irrelevant as long as
  • the notice 14 on the screen of the VR glasses 10 can maintain its size or grow less than inversely proportional to the distance, so that with increasing
  • the information 14 can cause perspective distortion
  • the graphics processor 12 replaces the note 14 with a note 14 “of another shape, which is not immediately in the (to the plane 3 vertical line of sight 15 between the eye of the employee 11 and the one here Lacquer flaw 16, shown schematically as a cross-hatched area, lies in order not to obstruct the view of the latter during the repair.
  • Process computer 8 capable of processing each one of the employees 1 1
  • the process computer s can also recognize when the employee 11 turns away from the paint defect after successful repair, and then delete the paint defect in question from the database 7 or note it there as remedied.
  • the paint defect is not deleted or noted as corrected before the employee 11 has finished repairing it, e.g. Because the employee 1 1 temporarily turns his head in a different direction, it can be provided that the paint defect is only deleted or noted as having been corrected if the
  • a predetermined object 17 appears in the field of view of the camera of the VR glasses 10.
  • the object 17 can in principle be selected as desired; For an intuitive use of the VR glasses 10, it is expedient if the object 17 has a meaning that is linked to the successful repair, e.g. one with OK
  • labeled sign which is mounted adjacent to the assembly line at a position where there is a low probability that the employee 1 1 looks at it involuntarily, e.g. clearly above eye level, or a correspondingly labeled card that the employee 1 1 carries along with repair tools and holds in front of the eye or in front of the camera of the VR glasses 10 when he is using the
  • the process computer 8 monitors the progress of the repair on the basis of the images supplied by the camera of the VR glasses 10, decides whether the paint defect has been remedied or not and, if necessary, adjusts the database 7 accordingly.
  • Information 18 on the type and identity of the body can be displayed adjacent to this by the graphics processor 12 in the image displayed in the VR glasses 10, preferably outside the frame 13, so as not to obscure the body 1 to be processed
  • At least the information on the identity of the body 1 can also be read on the body itself, so that by comparing the information from
  • the graphic processor 12 displayed and the readable information of the employees 11 can verify that the indications 14 displayed in the VR glasses 10 regarding paint defects actually relate to the body 1 which is currently in front of them.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Automation & Control Theory (AREA)
  • Quality & Reliability (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

L'invention concerne un système d'assistance d'un usinage de surfaces sur une pièce (1). Le système comprend : un scanner (3) servant à identifier et à localiser des défauts sur la surface d'une pièce (1) ; un instrument d'édition mobile par rapport au scanner (3) sous la forme d'un casque de réalité virtuelle (11) servant à éditer les positions, sur lesquelles le scanner (3) identifie un défaut ; des moyens (6, 9) servant à détecter la position et l'orientation du casque de réalité virtuelle (10) par rapport à la pièce (1) ; et un processeur graphique (12), qui est mis au point pour afficher, sur une image s'affichant dans le casque de réalité virtuelle (10), une information concernant le défaut sur ou à proximité d'une ligne de vision (15) s'étendant entre l'œil d'un utilisateur (11) du casque de réalité virtuelle (10) et le défaut.
PCT/EP2019/067615 2018-08-29 2019-07-01 Système et procédé d'assistance d'un usinage de surfaces WO2020043362A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19736646.1A EP3844580A1 (fr) 2018-08-29 2019-07-01 Système et procédé d'assistance d'un usinage de surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018006834.0A DE102018006834A1 (de) 2018-08-29 2018-08-29 System und Verfahren zur Unterstützung einer Oberflächenbearbeitung
DE102018006834.0 2018-08-29

Publications (1)

Publication Number Publication Date
WO2020043362A1 true WO2020043362A1 (fr) 2020-03-05

Family

ID=67184998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/067615 WO2020043362A1 (fr) 2018-08-29 2019-07-01 Système et procédé d'assistance d'un usinage de surfaces

Country Status (4)

Country Link
EP (1) EP3844580A1 (fr)
DE (1) DE102018006834A1 (fr)
MA (1) MA53471A (fr)
WO (1) WO2020043362A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115589534A (zh) * 2022-09-09 2023-01-10 广州市斯睿特智能科技有限公司 跟随式车辆检测项图片采集装置及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096829A1 (fr) 2000-06-13 2001-12-20 Volkswagen Aktiengesellschaft Procede de controle qualitatif d'un produit et systeme de mise en oeuvre dudit procede
US20090141964A1 (en) * 2007-11-29 2009-06-04 Takashi Magara Appearance inspection apparatus, appearance inspection system, and appearance inspection appearance
US20180154962A1 (en) * 2016-12-06 2018-06-07 Hyundai Motor Company Vehicle body flaw elimination method using virtual mark and system thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730885A1 (de) * 1997-07-18 1999-01-21 Audi Ag Verfahren zur automatischen Erkennung von Oberflächenfehlern an Rohkarosserien und Vorrichtung zur Durchführung des Verfahrens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001096829A1 (fr) 2000-06-13 2001-12-20 Volkswagen Aktiengesellschaft Procede de controle qualitatif d'un produit et systeme de mise en oeuvre dudit procede
US20090141964A1 (en) * 2007-11-29 2009-06-04 Takashi Magara Appearance inspection apparatus, appearance inspection system, and appearance inspection appearance
US20180154962A1 (en) * 2016-12-06 2018-06-07 Hyundai Motor Company Vehicle body flaw elimination method using virtual mark and system thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
AZREEN ZURIATHY ET AL: "Applications of Augmented Reality For Inspection and Maintenance Process in Automotive Industry", 24 February 2018 (2018-02-24), pages i,ii,413 - 421, XP055631167, Retrieved from the Internet <URL:https://www.researchgate.net/publication/325310004_Applications_of_Augmented_Reality_For_Inspection_and_Maintenance_Process_in_Automotive_Industry> [retrieved on 20191011], DOI: 10.4314/jfas.v10i3s.35 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115589534A (zh) * 2022-09-09 2023-01-10 广州市斯睿特智能科技有限公司 跟随式车辆检测项图片采集装置及方法
CN115589534B (zh) * 2022-09-09 2023-09-08 广州市斯睿特智能科技有限公司 跟随式车辆检测项图片采集装置及方法

Also Published As

Publication number Publication date
EP3844580A1 (fr) 2021-07-07
DE102018006834A1 (de) 2020-03-05
MA53471A (fr) 2021-12-08

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