公开(公告)号：EP1996404B1

公开(公告)日：2011-05-11

申请号：EP07733934.9

申请日：2007-03-08

Applicant: KBA-NotaSys SA

Inventor： SCHAEDE, Johannes Georg ,  LOHWEG, Volker ,  STÖBER, Bernd ,  SCHWITZKY, Volkmar ,  HOIER, Günther

IPC: B41F33/00 ,  B41F21/08

CPC classification number: B41F21/08 ,  B41F33/0036

Abstract: There is described a sheet inspection system for a sheet-fed recto-verso printing press of the type comprising two printing cylinders (10, 20) for carrying out simultaneous recto-verso printing of the sheets, said sheet inspection system comprising at least one inspection device (200; 300; 400) for taking an image of one side of the printed sheets. The sheet inspection system comprises first and second transfer cylinders (60, 65) interposed between a first (10) of the two printing cylinders (10, 20) and a chain gripper system (5) of the printing press, printed sheets being transferred successively from the first printing cylinder (10) to the first transfer cylinder (60), to the second transfer cylinder (65), and to the chain gripper system (5). The inspection device (200; 300; 400) comprises a line image sensor (210; 310; 410) for performing line-scanning image acquisition of the one side of the printed sheets, this line image sensor (210; 310; 410) visually acquiring an image of a printed sheet while the printed sheet is being transported on the first or second transfer cylinder (60; 65).

公开(公告)号：EP2062229B1

公开(公告)日：2011-12-28

申请号：EP07826236.7

申请日：2007-09-03

Applicant: KBA-NotaSys SA

Inventor： SACHER, Jörn ,  STÖBER, Bernd ,  WILLEKE, Harald ,  LOHWEG, Volker ,  TÜRKE, Thomas

IPC: G07D7/20

CPC classification number: G07D7/20 ,  G07D7/0032

Abstract: There is described a method for controlling the quality of printed documents (1 ), such as banknotes and other similar documents, in an environment where only part of the surface of the printed documents is available for inspection, the method comprising the steps of (i) storing a reference image (6); (ii) acquiring a sample image (5) of a sample printed document to be controlled, which sample image covers only a limited portion of the sample printed document; (iii) selecting a search pattern (7) within the acquired sample image; (iv) searching the reference image (6) for a match with the selected search pattern (7), (v) determining control parameters linked to the position of the search pattern (7) within said sample image (5) and within said reference image (6), (vi) comparing the control parameters linked to the position of the search pattern (7) within the sample image (5) with the control parameters linked to the position of the search pattern (7) within the reference image (6); and (vii) based on the results of the comparison of the control parameters, accepting or rejecting the sample printed document.

Abstract translation: 描述了一种用于控制诸如纸币和其他类似文件的打印文档（1）的质量的方法，包括以下步骤：（i）存储参考图像（6）; （ii）获取待控制的样本打印文档的样本图像（5），该样本图像仅覆盖样本打印文档的有限部分; （iii）在获取的样本图像内选择搜索图案（7）; （iv）搜索所述参考图像（6）以与所选择的搜索模式（7）匹配，（v）确定与所述样本图像（5）内的所述参考图像（5）内的所述搜索模式（7）的位置相关联的控制参数， 图像（6），（vi）将与样本图像（5）内的搜索图案（7）的位置相关联的控制参数与参考图像（7）中搜索图案（7）的位置相关联的控制参数进行比较 6）; 和（vii）基于控制参数比较的结果，接受或拒绝样本打印文件。

公开(公告)号：EP1996403B1

公开(公告)日：2011-05-11

申请号：EP07713112.6

申请日：2007-03-08

Applicant: KBA-NotaSys SA

Inventor： SCHAEDE, Johannes Georg ,  LOHWEG, Volker ,  STÖBER, Bernd ,  SCHWITZKY, Volkmar ,  HOIER, Günther

IPC: B41F33/00

CPC classification number: B41F21/08 ,  B41F33/0036

Abstract: There is described a sheet inspection system for a sheet-fed recto-verso printing press of the type comprising two printing cylinders (10, 20) for carrying out simultaneous recto-verso printing of the sheets, said sheet inspection system comprising at least a first inspection device (100) for taking an image of a first side of the printed sheets. The first inspection device (100) comprises a first line image sensor (110) for performing line-scanning image acquisition of the first side of the printed sheets, and the first inspection device (100) is disposed in such a way that the first line image sensor visually acquires an image of a printed sheet while the said printed sheet is still adhering onto the surface of a first one (10) of the two printing cylinders (10, 20) of the printing press and immediately before the said printed sheet is transferred to a chain gripper system (5) of the printing press. Also described is a printing press equipped with the inspection system.