WO2000027549A1 - Vorrichtung zur bildaufnahme von paketoberflächen - Google Patents
Vorrichtung zur bildaufnahme von paketoberflächen Download PDFInfo
- Publication number
- WO2000027549A1 WO2000027549A1 PCT/DE1999/003483 DE9903483W WO0027549A1 WO 2000027549 A1 WO2000027549 A1 WO 2000027549A1 DE 9903483 W DE9903483 W DE 9903483W WO 0027549 A1 WO0027549 A1 WO 0027549A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- camera
- parcel
- package
- transport
- distribution information
- Prior art date
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
- 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
Definitions
- the invention relates to a device for recording images of package surfaces according to the preamble of claim 1.
- Parcels are automatically sorted and distributed according to the distribution information on the surface, in most cases the recipient addresses, in appropriate facilities.
- the parcels are transported on a transport device at a relatively high speed of approx. 2m / sec. very small distances between the packages past the image recording device, which makes the recorded images available to an OCR reader. Since the height of the packages fluctuates greatly, the optical system of the image recording device must be adapted to the different distances between the camera and the package surfaces in very short time intervals, so that the images to be evaluated have no quality fluctuations.
- the image sharpness was therefore automatically adapted to the different distances between the package surface and the image recording device.
- the distance was determined using a height sensor known per se, e.g. one
- High packets have a large resolution and low packets a small resolution. This results in a smaller scan width for high packets and a larger scan width for low packets.
- the image recording device which looks obliquely onto the package surface in the transport direction, is firmly coupled to an illumination device, this results in an undesirable shadow formation in the case of alternately high and low packages with short distances between the packages.
- the object of the invention specified in claim 1 is therefore to provide a device for image recording of packet surfaces for recognizing the distribution information, such as recipient names and addresses, located on the packet surface, which ensures a consistently high resolution for packets of different heights.
- two lighting devices transverse to the transport direction and laterally to be arranged from the packages so that they radiate obliquely onto the packages.
- the light cross-sections, the light distribution and the beam direction are selected so that the package surface captured by the camera with the distribution information at different package heights is always illuminated in a shadow-free manner, in contrast to the prior art.
- FIG. 1 shows a schematic side view of the device for recording images perpendicular to the transport direction of the packets
- FIG. 2 shows a schematic side view of the device for recording images in the transport direction of the packages
- the packages are transported on tilting trays 2, conveyor belts are also possible in the direction indicated by the arrow at a speed of> 1.7 m / s.
- the distances between the packages 1 can be 150 mm and smaller.
- they pass two sensors 3 for package height measurement mounted above them, for example ultrasonic sensors.
- a side light curtain can also be used.
- the packets 1 arrive in the recording area of a camera 4 mounted above the packets with a zoom lens 5 and auto focus.
- the camera 4 has a CCD diode line that scans the package surface during transport.
- the zoom lens 5 is driven by a fast linear motor 6 which is controlled by a control device 7, to which the sensors 3 for measuring the package height are also connected.
- the linear motor 6 is controlled by the control device 7 in such a way that the imaging scale is always the same with high resolution, regardless of the packet height.
- a control device 7 connected upstream. bound light barrier that reports the occupancy of the tilting trays 2 with packages 1.
- two lighting devices 8 are mounted laterally above the packages 1, which illuminate the packages 1 at an angle. The direction of light, the luminous area and the light distribution of the lighting devices 8 are selected such that the package surface detected by the camera 4 with the distribution information at the different package heights is always illuminated in a shadow-free and uniform manner.
Landscapes
- Sorting Of Articles (AREA)
- Image Input (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Lens Barrels (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99959227A EP1124651B1 (de) | 1998-11-06 | 1999-11-02 | Vorrichtung zur bildaufnahme von paketoberflächen |
JP2000580765A JP2003503865A (ja) | 1998-11-06 | 1999-11-02 | パケット表面の撮像装置 |
DE59904191T DE59904191D1 (de) | 1998-11-06 | 1999-11-02 | Vorrichtung zur bildaufnahme von paketoberflächen |
CA002349605A CA2349605C (en) | 1998-11-06 | 1999-11-02 | Device for recording pictures of parcel surfaces |
IL14290299A IL142902A0 (en) | 1998-11-06 | 1999-11-02 | Device for recording pictures of parcel surfaces |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19851284A DE19851284A1 (de) | 1998-11-06 | 1998-11-06 | Vorrichtung zur Bildaufnahme von Paketoberflächen |
DE19851284.8 | 1998-11-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000027549A1 true WO2000027549A1 (de) | 2000-05-18 |
Family
ID=7886960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1999/003483 WO2000027549A1 (de) | 1998-11-06 | 1999-11-02 | Vorrichtung zur bildaufnahme von paketoberflächen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1124651B1 (de) |
JP (1) | JP2003503865A (de) |
CA (1) | CA2349605C (de) |
DE (2) | DE19851284A1 (de) |
IL (1) | IL142902A0 (de) |
WO (1) | WO2000027549A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8245838B2 (en) | 2007-10-10 | 2012-08-21 | Sick Ag | Apparatus and method for the recording of images of objects moved on a conveyor device |
US8360316B2 (en) | 2007-08-10 | 2013-01-29 | Sick Ag | Taking undistorted images of moved objects with uniform resolution by line sensor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004519798A (ja) | 2001-05-16 | 2004-07-02 | シーメンス アクチエンゲゼルシヤフト | 撮影装置 |
US7385743B2 (en) | 2001-10-16 | 2008-06-10 | Accu-Sort Systems, Inc. | Linear imager rescaling method |
JP2005064633A (ja) * | 2003-08-08 | 2005-03-10 | Hitachi Ltd | 帳票読取装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044227A (en) * | 1975-08-07 | 1977-08-23 | The Upjohn Company | Bar code reader |
EP0312980A2 (de) * | 1987-10-20 | 1989-04-26 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Vorrichtung zum Erzeugen von Randdetektionssignalen, um ein Adressenelement auf einem Poststück zu lokalisieren |
US4869813A (en) * | 1987-07-02 | 1989-09-26 | Northrop Corporation | Drill inspection and sorting method and apparatus |
US4920255A (en) * | 1988-10-31 | 1990-04-24 | Stephen C. Gabeler | Automatic incremental focusing scanner system |
JPH02171883A (ja) * | 1988-12-23 | 1990-07-03 | Nec Corp | 光学文字読取装置 |
JPH08248291A (ja) * | 1995-03-09 | 1996-09-27 | Sony Corp | レンズ鏡筒 |
EP0796671A1 (de) * | 1996-03-22 | 1997-09-24 | Alcatel Postal Automation Systems | Bilderfassungssystem für Paketensortierung |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19639854A1 (de) * | 1996-09-27 | 1998-06-10 | Vitronic Dr Ing Stein Bildvera | Verfahren und Vorrichtung zur Erfassung von auf potentiell großflächigen Gegenständen aufgebrachten, optisch erfaßbaren Informationen |
-
1998
- 1998-11-06 DE DE19851284A patent/DE19851284A1/de not_active Withdrawn
-
1999
- 1999-11-02 CA CA002349605A patent/CA2349605C/en not_active Expired - Fee Related
- 1999-11-02 EP EP99959227A patent/EP1124651B1/de not_active Expired - Lifetime
- 1999-11-02 WO PCT/DE1999/003483 patent/WO2000027549A1/de active IP Right Grant
- 1999-11-02 IL IL14290299A patent/IL142902A0/xx unknown
- 1999-11-02 JP JP2000580765A patent/JP2003503865A/ja active Pending
- 1999-11-02 DE DE59904191T patent/DE59904191D1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4044227A (en) * | 1975-08-07 | 1977-08-23 | The Upjohn Company | Bar code reader |
US4869813A (en) * | 1987-07-02 | 1989-09-26 | Northrop Corporation | Drill inspection and sorting method and apparatus |
EP0312980A2 (de) * | 1987-10-20 | 1989-04-26 | EASTMAN KODAK COMPANY (a New Jersey corporation) | Vorrichtung zum Erzeugen von Randdetektionssignalen, um ein Adressenelement auf einem Poststück zu lokalisieren |
US4920255A (en) * | 1988-10-31 | 1990-04-24 | Stephen C. Gabeler | Automatic incremental focusing scanner system |
JPH02171883A (ja) * | 1988-12-23 | 1990-07-03 | Nec Corp | 光学文字読取装置 |
JPH08248291A (ja) * | 1995-03-09 | 1996-09-27 | Sony Corp | レンズ鏡筒 |
EP0796671A1 (de) * | 1996-03-22 | 1997-09-24 | Alcatel Postal Automation Systems | Bilderfassungssystem für Paketensortierung |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 438 (P - 1108) 19 September 1990 (1990-09-19) * |
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8360316B2 (en) | 2007-08-10 | 2013-01-29 | Sick Ag | Taking undistorted images of moved objects with uniform resolution by line sensor |
US8245838B2 (en) | 2007-10-10 | 2012-08-21 | Sick Ag | Apparatus and method for the recording of images of objects moved on a conveyor device |
Also Published As
Publication number | Publication date |
---|---|
EP1124651B1 (de) | 2003-01-29 |
EP1124651A1 (de) | 2001-08-22 |
DE19851284A1 (de) | 2000-05-11 |
DE59904191D1 (de) | 2003-03-06 |
CA2349605A1 (en) | 2000-05-18 |
IL142902A0 (en) | 2002-04-21 |
JP2003503865A (ja) | 2003-01-28 |
CA2349605C (en) | 2005-10-18 |
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