EP2892835B1 - Device and method for controlling the tracking of a value document stack - Google Patents
Device and method for controlling the tracking of a value document stack Download PDFInfo
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- EP2892835B1 EP2892835B1 EP13759983.3A EP13759983A EP2892835B1 EP 2892835 B1 EP2892835 B1 EP 2892835B1 EP 13759983 A EP13759983 A EP 13759983A EP 2892835 B1 EP2892835 B1 EP 2892835B1
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Classifications
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- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/20—Controlling associated apparatus
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- B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
- B65H1/025—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge with controlled positively-acting mechanical devices for advancing the pile to present the articles to the separating device
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- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
- B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
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- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/04—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to absence of articles, e.g. exhaustion of pile
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Definitions
- the invention relates to a device and a method for processing value documents, in particular for controlling the tracking of a value document stack.
- a separator for value documents is known, by which value documents are deducted individually from a value-document stack.
- a value-document stack lying on a movable pressure plate is fed to the singler by raising the pressure plate.
- the singler has a feed device, a separating roller and a retaining device.
- the pressure plate is moved in the direction of the singulator until the value-document stack is pressed against the feed device with slight pressure. Thereafter, the respective highest value document of the stack is moved by means of the feed device in the direction of the separating roller, which then separates the uppermost value document. Since the number of value documents in the value document stack decreases as the singulation progresses, the pressure plate is continuously adjusted upward in order to raise the value document stack further so that the top value document can be detected by the advancing device of the singler.
- the density of the value documents in the stack is determined continuously during singulation.
- the stack can be pressed during the entire separation with a suitable pressure to the feed device of the singler.
- a camera is used, which is directed to the side of the document of value document in order to capture an image of the value document edges.
- the value document edges are recognized and from this the Density of the value document stack, ie the number of value documents determined in a particular section of the value document stack.
- the distance between the pressure plate and the separator is controlled.
- the object of the present invention is to find an alternative solution for those cases in which the value document edges can not yet be recognized or only insufficiently recognized.
- an image of one page of the value document stack is taken.
- the captured image of the value document stack page is evaluated to recognize the edges of the individual value documents and to determine a number of value document edges in the image.
- the tracking of the value document stack is controlled as a function of the number of value document edges that are determined in the recorded image.
- the tracking of the value document stack is controlled as a function of the number of value document edges determined for this image section, when the value documents mapped in the image section are separated.
- the tracking of the value document stack can not be controlled on the basis of the number of value document edges present in this image section. Instead, a brightness of the image in this image section is additionally determined. And when the value documents mapped in this image section are singulated, the tracking of the value-document stack is controlled as a function of the brightness determined in this image section.
- a high brightness is determined in the image section in which the number of value document edges could not or only insufficiently be determined, it is assumed that value documents with very good condition are present in the relevant section of the value document stack. Since such value documents in a stack are usually close to one another and thus form a value document stack of greater density than heavily used value documents, a low tracking speed is selected for such value documents. Therefore, if the value documents mapped in the image section are singulated, if the number of value document edges in the image portion can not be determined insufficiently, and if a large brightness is detected in the image portion, the tracking is temporarily stopped or a low tracking speed is selected. For example, a lower tracking speed is selected than in the case when a low brightness is determined in this image section in which the number of document edges can not or only insufficiently be determined.
- the invention ensures that the tracking is braked in the case of dense documents of value whose edges are not recognized. This avoids that tight document of value stack are pressed by the tracking too much to the separator or the feed device and that the value document stack is clamped between the pressure plate and the singler.
- the tracking can remain unchanged during the separation of the value documents mapped in the image section, for example.
- the tracking rate will be maintained as it was previously selected, ie, as selected for the value documents for which a number of value document edges were last identified.
- the tracking speed is maintained, for example, as it was selected on the basis of an earlier determined number of value document edges, which was determined in a previously evaluated image section of the same value document stack. Or the tracking will stop if it was previously stopped.
- the tracking speed is set to a value that has been predefined for less dense value documents.
- the tracking and possibly also the separation of the value documents can be stopped. The stoppage of the singler can be useful if there is a suspicion that there are defective value documents or folded value documents or foreign objects in the relevant image section in which no value document edges and low brightness have been detected.
- the tracking of the value-document stack when separating the value documents mapped in this image section, is controlled in dependence on the brightness determined in this image section in such a way that the tracking speed is reduced stepwise or continuously with increasing brightness of the image section. Reducing the tracking speed may also include temporarily stopping the tracking.
- different levels for the tracking speeds can be selected as a function of the ascertained brightness, for example a high tracking speed for a low brightness, a medium tracking speed for a medium brightness and at a high brightness, a low tracking speed or even stopping the tracking.
- the separation rate with which the value documents are singled is also controlled as a function of the brightness determined in the relevant image section. For example, a decreasing brightness of the image portion will be used as an indication of a worse condition of the value documents.
- the dicing rate is then reduced as the brightness of the image portion decreases, to avoid interference with dicing weak value documents. For example, when falling below a brightness threshold, a somewhat low singulation rate is selected. This brightness threshold is i.a. different from the brightness threshold relevant for the tracking.
- the image section in which the number of value document edges is determined may be the entire recorded image or only part of the captured image.
- the image portion is e.g. chosen such that the next of the value documents of the document of value document to be separated are mapped therein.
- the image section preferably lies in the section of the document of value document which faces the singler.
- the image section to be evaluated can also be subdivided into several image sections, in each of which a number of the document value edges is determined. These image sections may be e.g. be offset from each other along the stacking direction and adjoin one another.
- the image portion of the image in which the edge detection is performed and the number of edges is detected may be a continuous two-dimensional image portion.
- the image portion may also consist of several image strips which are parallel to each other and run perpendicular to the stacking direction of the value document stack that the same value documents of the document of value stack are shown in this image strip. The edge detection is then performed correspondingly for the two-dimensional image portion or for these image stripes.
- the tracking is temporarily stopped or the tracking speed is reduced. For example, a smaller tracking speed is selected when separating the value documents mapped in this image section than in the case when a brightness is determined in this image section that does not exceed the brightness threshold. For example, when the brightness threshold is exceeded, a tracking speed may be selected which is lower than the tracking speed in the case when value document edges are detected in the image section.
- the tracking speed which was reduced on the basis of the ascertained brightness, remains reduced until a number of value document edges can be determined again in a later recorded image section, for example in the next evaluated image section of the following value documents of the same value document stack. As soon as a number of value document edges can be determined again in a later recorded image section, the tracking speed for the value documents which are depicted in the later recorded image section can be determined. be selected again depending on the number of value document edges.
- the brightness of the image in the relevant image portion need not be determined, but the tracking speed can - regardless of the brightness - only depending on the number of in the value document edges recognized in the relevant image section are selected.
- the brightness of the image can be determined, evaluated and used in addition to controlling the tracking.
- the captured image is e.g. a grayscale image.
- the brightness of the image results from the pixel intensities of the image, e.g. in the visible and / or in the infrared spectral range.
- As a measure of the brightness of the image in the image section e.g. an average of the pixel intensity is formed over the image portion.
- the frequency distribution of the pixel intensities in the image section can be determined.
- the tracking is controlled, for example, as a function of the position of the mean value of the frequency distribution and / or as a function of the width (eg, half-width or standard deviation) of the frequency distribution.
- a small width may be used as an indication of the presence of a homogeneous stack of value documents.
- the invention also relates to a device for controlling the tracking of a value document stack from which the value documents are to be singulated.
- the device has an image sensor, an evaluation device for evaluating the image recorded by the image sensor, and a control device for controlling the tracking of the value document stack.
- the image sensor is arranged in the vicinity of the singulator so that it can take an image of one side of the document of value-value stack.
- the image sensor captures the image from one side of the value document stack, i. from a direction perpendicular to the stacking direction of the document of value stack.
- the image sensor is preferably a two-dimensional image sensor.
- the value-document stack, from which the value documents are to be singled out by means of the singler, is updated in order to bring in each case the uppermost value document of the value-document stack into the coverage area of a feed device of the singler.
- the value document stack is based on e.g. a pressure plate which is moved in the direction of the singler to track the value document stack to the separator.
- the evaluation device is connected to the image sensor and receives from this image data of the recorded image.
- the evaluation device is designed to evaluate the image of the page of value document stack recorded by the image sensor in order to recognize the edges of the individual value documents in an image section of the image and to display in the image section a number of document edges and possibly the brightness of the document To determine image.
- the evaluation device has, for example, corresponding Härdwaresclienen and / or a corresponding software program for edge detection.
- the evaluation device checks whether it can determine the number of value document edges when evaluating the image in a designated image section of the image. If it can not or only insufficiently determine the number of value document edges, the evaluation device additionally determines a brightness of the image in this image section.
- the evaluation device is connected to a control device which is designed to control the tracking of the document of value document as a function of the number of value document edges which the evaluation device has determined in the recorded image. For example, two or more tracking modes are provided for this purpose in the control device, which can be implemented by appropriate hardware and / or software of the control device.
- the evaluation device sends the information about whether the recognition of the value document edges was successful, as well as possibly the number of value document edges and possibly the brightness of the image section to the control device.
- the control device controls the tracking of the document of value documents, the separation of the value documents mapped in this image section, as a function of the determined number of document edges and the brightness which the evaluation device has determined in the image section of these documents of value.
- the control device selects the tracking mode as a function of the number of value document edges and, if this is not possible, as a function of the brightness of the image section.
- the follow-up mode it is determined whether the value-document stack is updated and, if so, with which speed the value-document stack is tracked. For tracking causes the control device a corresponding movement of the pressure plate, which supplies the value document stack the separator.
- the image sensor can also be designed to independently check for contamination, and preferably at a time when there is no value document stack in its field of view. If then a too low brightness is detected, it is concluded that contamination of the image sensor. As a result of soiling, automatic cleaning of the image sensor or lens or window upstream therefrom (e.g., by blowing) may occur or a corresponding message may be output from the value-document processing device, e.g. to prompt an operator to clean the image sensor, lens or window.
- a reference surface may be applied, so that at times when no document of value is in the field of vision of the image sensor, the brightness of the image captured by the image sensor is determined by the reference surface.
- the reference surface makes it possible to detect a reference brightness from time to time, which is included in the image analysis.
- the brightness threshold with which the detected brightness of the image section is compared is selected as a function of the reference brightness that the image sensor detects from the reference surface (without existing value-document stack).
- the reference surface may be designed to be pivotable or permanently installed.
- the reference surface - as far as it is in the field of view of the image sensor - a uniform brightness.
- the invention also relates to a separating device having a device for controlling the tracking and a value-document processing device having such a separating device.
- the singulation device contains e.g. a feed device, a separating element (for example a roller) and a retaining device and optionally the pressure plate for receiving and for tracking the value-document stack.
- the device for value document processing further has a transport system for transporting the value documents, sensors for checking the value documents and possibly one or more output compartments and / or storage containers for the value documents.
- FIG. 1a shows by way of example a section of a device 100 for value document processing in a bird's-eye view as seen from above (z-direction) on the area of the separator 30 of the device 100.
- a value-document stack 10 has been inserted into the singler compartment 6 of the device 100.
- the value-document stack 10 rests on a movable pressure plate 20, which can be moved up and down (z-direction) in order to feed the stack 10 to the singler 30 of the device 100.
- the separating roller 33 With the aid of the separating roller 33, the uppermost value document along the x-direction is deducted from the value-document stack 10 in each case.
- the further components of the singler 30 and of the device 100 which are located between the observer in a bird's eye view and the value-document stack 10, are in FIG. 1a omitted.
- the device 100 has a camera module 3, which is arranged in the interior of the device, on that side of the singulator 30, which faces away from the operator side B of the device 100.
- the camera module 3 is directed from the interior of the device 100 into the singulator compartment 6 in order to record an image of the document of value document 10 from the side of the document of value document stack.
- the value-document stack 10 is viewed in the y-direction.
- the image sensor 1 of the camera module 3 is arranged so that it can receive an image of the interior of the device 100 facing side of the value document stack 10.
- two light sources 2 are provided on the camera module 3, which emit flash light synchronously to each other.
- the image recorded by the image sensor 1 is evaluated by means of an evaluation device 4, which performs image processing in order to recognize the edges of the individual value documents and to determine the number of value document edges or the density of the value documents from the recorded image.
- the image section is subjected to an edge detection process, for example with the aid of edge operators, as are known from the prior art.
- the evaluation device 4 is connected to the control device 21 of the pressure plate 20, which controls the movement of the pressure plate 20 along the z-direction.
- FIG. 1b shows a side view of the singulator 30, viewed from the side of the camera module 3 from.
- the singler 30 has in this example a feed device 31, a retaining device 32, a separating roller 33 and a retaining roller 34.
- the feed device is designed here as an air guide plate, which sucks the top value document and moves in the x direction, but can also be realized differently, for example by feed rollers, etc.
- the uppermost value document 5 is transported by the feed device 31 in the direction of the separating roller 33 (x-direction). This then takes the top value document and subtracts it from the stack 10.
- the value documents of the stack 10 following the highest value document are retained by the retention device 32.
- the restraining roller 34 is additionally provided, which then transports the following value documents back into the stack 10.
- the item of value isolated by the separating device 30 will then be transferred to a transport system 40. This includes e.g. Transport rollers 41, by means of which transport belt 42 are moved. For transport, the respective value document is clamped between the transport belt 42.
- the pressure plate 20 is tracked along the z direction with the aid of a motor, to further increase the value document stack.
- the highest value document 5 in each case comes into the detection range of the feed device 31 and can be singulated.
- the tracking speed with which the pressure plate 20 is moved upward is selected to be different depending on the density of the value-document stack 10.
- the stack 10 With loosely stacked value documents (low stack density), the stack 10 is tracked at a relatively high speed in order to achieve a high singulation rate. In the case of a dense document of value stack 10, the tracking is slowed down or temporarily stopped, so that there is no disruption of the separation.
- the movement of the pressure plate 20 along the z direction is controlled by means of the control device 21.
- the control device 21 controls the adjusting device 25, which is mechanically connected to the pressure plate 20.
- the density of the value document stack is determined from the number K of value document edges that are recognized in a picture section 8.
- FIG. 2a an image section 8 suitable for this purpose is sketched, which the image sensor 1 receives from the side of the document of value stack 10. If the edge detection in the image section 8 is successful, the control device 21 receives from the evaluation device 4 information about the currently present number K of value document edges detected in the image section 8.
- the number K of value document edges is, for example, determined continuously during the separation of the value documents.
- the control device 21 controls the tracking of the pressure plate 20 as a function of this number K of value document edges. For example, the distance D between the pressure plate 20 and the separator 30 becomes dependent the determined number K of value document edges adapted so that the stack 10 is easily pressed against the feed device 31.
- the image section 8 is preferably recorded in that side section of the document of value stack which is located in the vicinity of the singulator 30 (in FIG. 2a top right).
- the image section 8 preferably comprises those value documents which are separated next, immediately before they are separated.
- the respectively determined from the image portion number K of value documents then directly, virtually without delay, are used to control the movement of the pressure plate 20.
- the respective number K of value document edges and / or the image data can also be stored permanently or temporarily. By storing the number K, the number K determined in the respective image section can already be determined before the value documents are separated and only then retrieved and used for the control, if the respective value documents are actually separated.
- the storage of the number K therefore makes it possible for the image sensor 3 to be arranged along the z-direction also at a distance from the singler 30.
- the value document stack 10 lying on the pressure plate 20 consists in the example FIG. 2a from an upper stack section 10a and a lower stack section 10b.
- the upper stack section 10a are used value documents which have a certain waviness and therefore lie on one another with a relatively low density.
- the lower stack section 10b contains documents of value with vanishing waviness, which are very close to each other, eg value documents that are hardly used or new documents of value.
- FIG. 2a In the example of FIG. 2a In the image section 8 in which the used value documents of the upper stacking section 10a are depicted, ten value document edges are recognized.
- FIG. 2b displays the value document stack FIG. 2a after a part of the upper stacking portion 10a has already been singulated.
- the picture section 8 of FIG. 2b therefore only includes the lower value documents of the upper value-document stack 10a. It shows fourteen value document edges.
- the ten value document edges of the image section 8 FIG. 2a and the fourteen value document edges of the image section 8 FIG. 2b can be detected by conventional image processing techniques for edge detection.
- the tracking of the pressure plate 20 is controlled as a function of the number K of value documents that were detected in the image section 8. For example, in the case of the ten value document edges in FIG. 2a a tracking speed G2 greater than a tracking speed G1 is selected, which in the case of the fourteen document document edges FIG. 2b is selected.
- the same tracking speed of the pressure plate 20 can also be selected in both cases.
- the value-document stack 10 is shown after all the value documents of the upper stacking section 10a have already been separated, so that only the dense value documents of the lower stacking section 10b are contained in the image section 8.
- the density, but also the color or the contamination of the value documents can impair the recognition of the value document edges, or also a misalignment or a very large waviness of the value documents contained in the stack 10.
- the brightness of the image in the image section 8 is therefore additionally determined. And the tracking of the value document stack 10 is then controlled as a function of the determined brightness of the image section 8.
- FIG. 3a For the image section 8 off Figure 2d is in FIG. 3a the frequency distribution d of the brightness of the image section 8 is sketched, here schematically a histogram N (I) of the pixel intensities I of all pixels of the image section 8.
- N histogram
- the frequency distribution d in order to be able to control the tracking of the value documents on the basis of parameters of this frequency distribution d, even in the event that no number K of value document edges can be determined.
- the position and / or the width S of the frequency distribution are used as parameters for controlling the tracking.
- the mean value M of the frequency distribution can be determined and compared with a threshold T, which was determined, for example, in advance of the value-document processing. If the mean value M exceeds the threshold T, as in the frequency distribution d FIG. 3a the case is, the image section 8 has a relatively high brightness. This is used as an indication that in the image section 8 value documents are shown, which are very close to each other and therefore appear bright.
- the tracking of the value document stack 10b by means of the pressure plate 20 is temporarily stopped in this case or a low tracking speed G0 is selected, which is less than the above-mentioned tracking speeds G or G1 and G2.
- FIG. 3b shows the case when no value documents are shown in the image section 8 at all, for example when the separator compartment 6 is empty. Also in this case, the image processing in the image section can not detect value document edges. Since only the dark background of the singletrack compartment 6 appears in the image section 8 in this case, the frequency distribution e lies at a substantially lower brightness or pixel intensity I and therefore significantly below the threshold T. The fact that the mean value M of the frequency distribution e - im Contrary to the frequency distribution d - the threshold T falls below, is used as an indication that not because of a dense document of value stack, but from another Reason no number of value document edges could be determined. If the average value M falls below the threshold T, the tracking speed is maintained or set to the above-mentioned tracking speed G or G2, for example, which is also used in the case where a small number K of value document edges is detected in the image portion.
- the width S is large, for example greater than a predetermined width limit S *, as is the case with the frequency distribution f of the Figure 3c If so, this is taken as an indication that the edge detection problems do not occur because of the high density of the stack and not because of missing value documents, but for some other reason.
- the reason may be, for example, a large ripple of the value documents, cf. the in Figure 3c shown image section 8, or a misplacement of the value documents.
- a large width S may also be present if in the image section 8 a relative inhomogeneous value document stack from various value document types or qualities is mapped.
- the two peaks P1, P2 of the frequency distribution g can be identified and their position and width used to control the tracking.
- the width of these two peaks P1, P2 is relatively small and suggests two homogeneous partial stacks of dense documents of value.
- the position of the peaks on the intensity axis I indicates that one of the sub-stacks consists of bright value documents and the other sub-stacks consist of something darker value documents. Due to the high density of both value document stacks, the tracking should be slowed or stopped as they are being singulated.
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Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Bearbeitung von Wertdokumenten, insbesondere zur Steuerung der Nachführung eines Wertdokumentstapels.The invention relates to a device and a method for processing value documents, in particular for controlling the tracking of a value document stack.
Aus der
Um den Wertdokumentstapel geeignet nachzuführen wird während der Vereinzelung kontinuierlich die Dichte der Wertdokumente in dem Stapel bestimmt. So kann der Stapel während der gesamten Vereinzelung mit einem passenden Druck an die Vorschubeinrichtung des Vereinzelers angedrückt werden. Zur Bestimmung der Dichte des Wertdokumentstapels wird z.B. eine Kamera verwendet, welche auf die Seite des Wertdokumentstapels gerichtet ist, um ein Bild der Wertdokumentkanten zu erfassen. Mittels einer Bildverarbeitung werden die Wertdokumentkanten erkannt und daraus die Dichte des Wertdokumentstapels, d.h. die Anzahl an Wertdokumenten in einem bestimmten Abschnitt des Wertdokumentstapels ermittelt. In Abhängigkeit der ermittelten Anzahl an Wertdokumenten wird der Abstand zwischen der Andruckplatte und dem Vereinzeler gesteuert.In order to track the value-document stack appropriately, the density of the value documents in the stack is determined continuously during singulation. Thus, the stack can be pressed during the entire separation with a suitable pressure to the feed device of the singler. To determine the density of the document of value stack, for example, a camera is used, which is directed to the side of the document of value document in order to capture an image of the value document edges. By means of an image processing, the value document edges are recognized and from this the Density of the value document stack, ie the number of value documents determined in a particular section of the value document stack. Depending on the determined number of value documents, the distance between the pressure plate and the separator is controlled.
Mit den bisher bekannten Bildverarbeitungsmethoden ist eine Erkennung der Wertdokumentkanten jedoch nicht immer möglich. Daher wurden Bildverarbeitungsverfahren vorgeschlagen, die eine verbesserte Kantenerkennung erlauben, z.B. in der
Die Aufgabe der vorliegenden Erfindung ist es, eine alternative Lösung für solche Fälle zu finden, in denen die Wertdokumentkanten bisher nicht oder nur unzureichend erkannt werden können.The object of the present invention is to find an alternative solution for those cases in which the value document edges can not yet be recognized or only insufficiently recognized.
Diese Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. Weitere Vorteile der vorliegenden Erfindung ergeben sich aus den abhängigen Ansprüchen.This object is solved by the features of the independent claims. Further advantages of the present invention will become apparent from the dependent claims.
Während der Stand der Technik darauf abzielt, die Kanteerkennung der Wertdokumentkanten immer weiter zu verbessern, um auch schwer erkennbare Wertdokumentkanten zu erkennen, rückt die Erfindung von diesem Vorgehen ab. Denn die Erfindung ermöglicht es, die Nachführung eines Wertdokumentstapels auch in dem Fall zu steuern, wenn die Erkennung der Wertdokumentkanten nicht funktioniert.While the prior art aims to improve the edge detection of the value document edges more and more difficult to recognize To recognize value document edges, the invention deviates from this procedure. Because the invention makes it possible to control the tracking of a value document stack even in the case when the recognition of value document edges does not work.
Um die Nachführung des Wertdokumentstapels zu steuern, wird ein Bild einer Seite des Wertdokumentstapels aufgenommen. Das aufgenommene Bild der Seite des Wertdokumentstapels wird ausgewertet, um die Kanten der einzelnen Wertdokumente zu erkennen und um in dem Bild eine Anzahl an Wertdokumentkanten zu ermitteln. Die Nachführung des Wertdokumentstapels wird in Abhängigkeit der Anzahl der Wertdokumentkanten gesteuert, die in dem aufgenommenen Bild ermittelt werden.To control the tracking of the value document stack, an image of one page of the value document stack is taken. The captured image of the value document stack page is evaluated to recognize the edges of the individual value documents and to determine a number of value document edges in the image. The tracking of the value document stack is controlled as a function of the number of value document edges that are determined in the recorded image.
Falls beim Auswerten des Bilds in einem Bildabschnitt des Bilds die Anzahl an Wertdokumentkanten ermittelt werden kann, wird, wird, beim Vereinzeln der in dem Bildabschnitt abgebildeten Wertdokumente, die Nachführung des Wertdokumentstapels in Abhängigkeit der für diesen Bildabschnitt ermittelten Anzahl an Wertdokumentkanten gesteuert.If, when evaluating the image in an image section of the image, the number of value document edges can be determined, the tracking of the value document stack is controlled as a function of the number of value document edges determined for this image section, when the value documents mapped in the image section are separated.
Falls jedoch beim Auswerten des Bilds in einem Bildabschnitt des Bilds die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermittelt werden kann, kann die Nachführung des Wertdokumentstapels nicht auf Basis der Anzahl der in diesem Bildabschnitt vorhandenen Wertdokumentkanten gesteuert werden. Stattdessen wird zusätzlich eine Helligkeit des Bilds in diesem Bildabschnitt ermittelt. Und beim Vereinzeln der in diesem Bildabschnitt abgebildeten Wertdokumente wird die Nachführung des Wertdokumentstapels in Abhängigkeit der in diesem Bildabschnitt ermittelten Helligkeit gesteuert.However, if the number of value document edges can not or only insufficiently be determined when evaluating the image in an image section of the image, the tracking of the value document stack can not be controlled on the basis of the number of value document edges present in this image section. Instead, a brightness of the image in this image section is additionally determined. And when the value documents mapped in this image section are singulated, the tracking of the value-document stack is controlled as a function of the brightness determined in this image section.
Falls in dem Bildabschnitt, in dem die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermittelt werden konnte, eine große Helligkeit ermittelt wird, wird angenommen, dass in dem betreffenden Abschnitt des Wertdokumentstapels Wertdokumente mit sehr gutem Zustand vorliegen. Da solche Wertdokumente in einem Stapel üblicherweise dicht aufeinander liegen und so einen Wertdokumentstapel größerer Dichte bilden als stark gebrauchte Wertdokumente, wird für solche Wertdokumente eine geringe Nachführgeschwindigkeit gewählt. Daher wird beim Vereinzeln der in dem Bildabschnitt abgebildeten Wertdokumente, falls die Anzahl an Wertdokumentkanten in dem Bildabschnitt nicht oder nur unzureichend ermittelt werden kann und falls in dem Bildabschnitt eine große Helligkeit ermittelt wird, die Nachführung zeitweise angehalten oder eine geringe Nachführgeschwindigkeit gewählt. Beispielsweise wird dabei eine geringere Nachführgeschwindigkeit gewählt als in dem Fall, wenn in diesem Bildabschnitt, in dem die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermittelt werden kann, eine geringe Helligkeit ermittelt wird.If a high brightness is determined in the image section in which the number of value document edges could not or only insufficiently be determined, it is assumed that value documents with very good condition are present in the relevant section of the value document stack. Since such value documents in a stack are usually close to one another and thus form a value document stack of greater density than heavily used value documents, a low tracking speed is selected for such value documents. Therefore, if the value documents mapped in the image section are singulated, if the number of value document edges in the image portion can not be determined insufficiently, and if a large brightness is detected in the image portion, the tracking is temporarily stopped or a low tracking speed is selected. For example, a lower tracking speed is selected than in the case when a low brightness is determined in this image section in which the number of document edges can not or only insufficiently be determined.
Durch die Erfindung wird erreicht, dass die Nachführung im Fall von dicht aufeinander liegenden Wertdokumenten, deren Kanten nicht erkannt werden, abgebremst wird. So wird vermieden, dass dichte Wertdokumentstapel durch die Nachführung zu stark an den Vereinzeler bzw. die Vorschubeinrichtung angedrückt werden und dass der Wertdokumentstapel zwischen der Andruckplatte und dem Vereinzeler eingeklemmt wird.The invention ensures that the tracking is braked in the case of dense documents of value whose edges are not recognized. This avoids that tight document of value stack are pressed by the tracking too much to the separator or the feed device and that the value document stack is clamped between the pressure plate and the singler.
Falls aber in dem Bildabschnitt, in dem die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermittelt werden konnte, eine geringe Helligkeit ermittelt wird, wird angenommen, dass in dem betreffenden Abschnitt des Wertdokumentstapels Wertdokumente vorliegen, die weniger dicht aufeinander liegen, z.B. Wertdokumente mit schlechterem Zustand. In einem solchen Fall kann die Nachführung beim Vereinzeln der in dem Bildabschnitt abgebildeten Wertdokumente z.B. unverändert bleiben. Zum Beispiel wird die Nachführgeschwindigkeit so beibehalten wird wie sie zuvor gewählt wurde, d.h. wie sie für die Wertdokumente gewählt wurde, bei denen zuletzt eine Anzahl an Wertdokumentkanten ermittelt werden konnte.
Die Nachführgeschwindigkeit wird z.B. so beibehalten, wie sie auf Basis einer früher ermittelten Anzahl an Wertdokumentkanten gewählt wurde, die in einem früher ausgewerteten Bildabschnitt desselben Wertdokumentstapels ermittelt wurde. Oder die Nachführung bleibt angehalten, falls sie zuvor angehalten war. Alternativ dazu wird die Nachführgeschwindigkeit auf einen Wert gesetzt, der für weniger dicht aufeinander liegende Wertdokumente vordefiniert wurde. Alternativ kann auch die Nachführung und ggf. auch die Vereinzelung der Wertdokumente angehalten werden. Das Anhalten des Vereinzelers kann sinnvoll sein, wenn der Verdacht besteht, dass sich in dem betreffenden Bildabschnitt, in dem keine Wertdokumentkanten und eine geringe Helligkeit festgestellt wurden, fehlerhafte Wertdokumente oder gefaltete Wertdokumente oder Fremdobjekte befinden.If, however, a low brightness is determined in the image section in which the number of value document edges could not or only insufficiently be determined, it is assumed that there are value documents in the relevant section of the value document stack which are less close to one another, eg value documents with a worse state , In one In such a case, the tracking can remain unchanged during the separation of the value documents mapped in the image section, for example. For example, the tracking rate will be maintained as it was previously selected, ie, as selected for the value documents for which a number of value document edges were last identified.
The tracking speed is maintained, for example, as it was selected on the basis of an earlier determined number of value document edges, which was determined in a previously evaluated image section of the same value document stack. Or the tracking will stop if it was previously stopped. Alternatively, the tracking speed is set to a value that has been predefined for less dense value documents. Alternatively, the tracking and possibly also the separation of the value documents can be stopped. The stoppage of the singler can be useful if there is a suspicion that there are defective value documents or folded value documents or foreign objects in the relevant image section in which no value document edges and low brightness have been detected.
Beispielsweise wird die Nachführung des Wertdokumentstapels, beim Vereinzeln der in diesem Bildabschnitt abgebildeten Wertdokumente, in Abhängigkeit der in diesem Bildabschnitt ermittelten Helligkeit derart gesteuert, dass die Nachführgeschwindigkeit mit zunehmender Helligkeit des Bildabschnitts stufenweise oder kontinuierlich reduziert wird. Das Reduzieren der Nachführgeschwindigkeit kann auch ein zeitweises Anhalten der Nachführung umfassen. Es können z.B. verschiedene Stufen für die Nachführgeschwindigkeiten in Abhängigkeit der ermittelten Helligkeit gewählt werden, z.B. bei einer geringen Helligkeit eine große Nachführgeschwindigkeit, bei einer mittleren Helligkeit eine mittlere Nachführgeschwindigkeit und bei einer großen Helligkeit eine geringe Nachführgeschwindigkeit oder sogar ein Anhalten der Nachführung.For example, the tracking of the value-document stack, when separating the value documents mapped in this image section, is controlled in dependence on the brightness determined in this image section in such a way that the tracking speed is reduced stepwise or continuously with increasing brightness of the image section. Reducing the tracking speed may also include temporarily stopping the tracking. For example, different levels for the tracking speeds can be selected as a function of the ascertained brightness, for example a high tracking speed for a low brightness, a medium tracking speed for a medium brightness and at a high brightness, a low tracking speed or even stopping the tracking.
Zusätzlich kann auch die Vereinzelungsrate, mit der die Wertdokumente vereinzelt werden, in Abhängigkeit der in dem betreffenden Bildabschnitt ermittelten Helligkeit gesteuert wird. Zum Beispiel wird eine abnehmende Helligkeit des Bildabschnitts als Indiz für einen schlechteren Zustand der Wertdokumente verwendet werden. Die Vereinzelungsrate wird dann mit abnehmender Helligkeit des Bildabschnitts reduziert, um Störungen beim Vereinzeln von Wertdokumenten mit schlechtem Zustand zu vermeiden. Zum Beispiel wird bei Unterschreiten einer Helligkeitsschwelle eine etwas geringe Vereinzelungsrate gewählt. Diese Helligkeitsschwelle ist i.a. verschieden von der für die Nachführung relevanten Helligkeitsschwelle.In addition, the separation rate with which the value documents are singled is also controlled as a function of the brightness determined in the relevant image section. For example, a decreasing brightness of the image portion will be used as an indication of a worse condition of the value documents. The dicing rate is then reduced as the brightness of the image portion decreases, to avoid interference with dicing weak value documents. For example, when falling below a brightness threshold, a somewhat low singulation rate is selected. This brightness threshold is i.a. different from the brightness threshold relevant for the tracking.
Der Bildabschnitt, in dem die Anzahl an Wertdokumentkanten ermittelt wird, kann das gesamte aufgenommene Bild sein oder nur ein Teil des aufgenommenen Bilds. Der Bildabschnitt wird z.B. so gewählt, dass darin die nächsten der zu vereinzelnden Wertdokumente des Wertdokumentstapels abgebildet sind. Bevorzugt liegt der Bildabschnitt in demjenigen Abschnitt des Wertdokumentstapels, der dem Vereinzeler zugewandt ist. Der auszuwertende Bildabschnitt kann auch in mehrere Bildabschnitte unterteilt werden, in denen jeweils eine Anzahl der Wertdokumentkanten ermittelt wird. Diese Bildabschnitte können z.B. entlang der Stapelrichtung zueinander versetzt sein und aneinander grenzen.The image section in which the number of value document edges is determined may be the entire recorded image or only part of the captured image. The image portion is e.g. chosen such that the next of the value documents of the document of value document to be separated are mapped therein. The image section preferably lies in the section of the document of value document which faces the singler. The image section to be evaluated can also be subdivided into several image sections, in each of which a number of the document value edges is determined. These image sections may be e.g. be offset from each other along the stacking direction and adjoin one another.
Der Bildabschnitt des Bilds, in dem die Kantenerkennung durchgeführt wird und die Anzahl der Kanten ermittelt wird, kann ein zusammenhängender zweidimensionaler Bildabschnitt sein. Alternativ kann der Bildabschnitt auch aus mehreren Bildstreifen bestehen, die derart parallel zueinander und senkrecht zur Stapelrichtung des Wertdokumentstapels verlaufen, dass in diesen Bildstreifen dieselben Wertdokumente des Wertdokumentstapels abgebildet sind. Die Kantenerkennung wird dann entsprechend für den zweidimensionalen Bildabschnitt oder für diese Bildstreifen durchgeführt.The image portion of the image in which the edge detection is performed and the number of edges is detected may be a continuous two-dimensional image portion. Alternatively, the image portion may also consist of several image strips which are parallel to each other and run perpendicular to the stacking direction of the value document stack that the same value documents of the document of value stack are shown in this image strip. The edge detection is then performed correspondingly for the two-dimensional image portion or for these image stripes.
Um die Helligkeit des Bildabschnitts, in dem die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermittelt werden konnte, zu bewerten, kann diese mit einer Helligkeitsschwelle verglichen werden. Es können auch aber mehrere Helligkeitsschwellen verwendet werden, um die Helligkeit zu bewerten. Falls die Anzahl an Wertdokumentkanten in dem Bildabschnitt nicht oder nur unzureichend ermittelt werden kann und die Helligkeit in dem Bildabschnitt die Helligkeitsschwelle überschreitet, wird die Nachführung zeitweise angehalten oder die Nachführgeschwindigkeit reduziert. Beispielsweise wird beim Vereinzeln der in diesem Bildabschnitt abgebildeten Wertdokumente eine geringere Nachführgeschwindigkeit gewählt als in dem Fall, wenn in diesem Bildabschnitt eine Helligkeit ermittelt wird, die die Helligkeitsschwelle nicht überschreitet. Beispielsweise kann beim Überschreiten der Helligkeitsschwelle eine Nachführgeschwindigkeit gewählt werden, die geringer ist als die Nachführgeschwindigkeit in dem Fall, wenn in dem Bildabschnitt Wertdokumentkanten erkannt werden.In order to evaluate the brightness of the image section in which the number of value document edges could not or only insufficiently be determined, this can be compared with a brightness threshold. However, several brightness thresholds can be used to evaluate the brightness. If the number of value document edges in the image section can not or only insufficiently be determined and the brightness in the image section exceeds the brightness threshold, the tracking is temporarily stopped or the tracking speed is reduced. For example, a smaller tracking speed is selected when separating the value documents mapped in this image section than in the case when a brightness is determined in this image section that does not exceed the brightness threshold. For example, when the brightness threshold is exceeded, a tracking speed may be selected which is lower than the tracking speed in the case when value document edges are detected in the image section.
Die Nachführgeschwindigkeit, die aufgrund der ermittelten Helligkeit reduziert wurde, bleibt solange reduziert, bis in einem später aufgenommenen Bildabschnitt, z.B. im als nächstes ausgewerteten Bildabschnitt der folgenden Wertdokumente desselben Wertdokumentstapels, wieder eine Anzahl an Wertdokumentkanten ermittelt werden kann. Sobald in einem später aufgenommenen Bildabschnitt wieder eine Anzahl an Wertdokumentkanten ermittelt werden kann, kann die Nachführgeschwindigkeit für die Wertdokumente, die in dem später aufgenommenen Bildabschnitt abgebildet sind, wieder in Abhängigkeit der Anzahl der Wertdokumentkanten gewählt werden.The tracking speed, which was reduced on the basis of the ascertained brightness, remains reduced until a number of value document edges can be determined again in a later recorded image section, for example in the next evaluated image section of the following value documents of the same value document stack. As soon as a number of value document edges can be determined again in a later recorded image section, the tracking speed for the value documents which are depicted in the later recorded image section can be determined. be selected again depending on the number of value document edges.
Falls beim Auswerten des Bilds in einem Bildabschnitt des Bilds die Anzahl an Wertdokumentkanten ermittelt werden kann, braucht die Helligkeit des Bilds in dem betreffenden Bildabschnitt nicht ermittelt zu werden, sondern die Nachführgeschwindigkeit kann - ohne Berücksichtigung der Helligkeit - nur in Abhängigkeit der Anzahl der in dem betreffenden Bildabschnitt erkannten Wertdokumentkanten gewählt werden. Optional kann aber auch im Fall der Erkennung der Wertdokumentkanten, die Helligkeit des Bilds ermittelt, ausgewertet und zusätzlich zur Steuerung der Nachführung verwendet werden.If, when evaluating the image in an image portion of the image, the number of value document edges can be determined, the brightness of the image in the relevant image portion need not be determined, but the tracking speed can - regardless of the brightness - only depending on the number of in the value document edges recognized in the relevant image section are selected. Optionally, however, in the case of recognition of the value document edges, the brightness of the image can be determined, evaluated and used in addition to controlling the tracking.
Das aufgenommene Bild ist z.B. ein Graustufenbild. Die Helligkeit des Bilds ergibt sich aus den Pixelintensitäten des Bilds, z.B. im sichtbaren und/oder im infraroten Spektralbereich. Als Maß für die Helligkeit des Bilds in dem Bildabschnitt wird z.B. ein Mittelwert der Pixelintensität über den Bildabschnitt gebildet.The captured image is e.g. a grayscale image. The brightness of the image results from the pixel intensities of the image, e.g. in the visible and / or in the infrared spectral range. As a measure of the brightness of the image in the image section, e.g. an average of the pixel intensity is formed over the image portion.
Zum Ermitteln der Helligkeit in dem Bildabschnitt kann die Häufigkeitsverteilung der Pixelintensitäten in dem Bildabschnitt ermittelt werden. Die Nachführung wird z.B. in Abhängigkeit der Lage des Mittelwerts der Häufigkeitsverteilung und/oder in Abhängigkeit der Breite (z.B. Halbwertsbreite oder Standardabweichung) der Häufigkeitsverteilung gesteuert. Zum Beispiel kann eine geringe Breite (schmale Häufigkeitsverteilung) als Indiz für das Vorliegen eines homogenen Stapels von Wertdokumenten verwendet werden. Bei großem Helligkeits-Mittelwert und geringer Breite der Häufigkeitsverteilung wird auf das Vorliegen von Wertdokumenten mit sehr gutem Zustand geschlossen. Bei großer Breite wird auf das Vorliegen gebrauchter Wertdokumente oder eines inhomogenen Stapels von Wertdokumenten geschlossen.In order to determine the brightness in the image section, the frequency distribution of the pixel intensities in the image section can be determined. The tracking is controlled, for example, as a function of the position of the mean value of the frequency distribution and / or as a function of the width (eg, half-width or standard deviation) of the frequency distribution. For example, a small width (narrow frequency distribution) may be used as an indication of the presence of a homogeneous stack of value documents. With a high brightness mean and a small width of the frequency distribution, the conclusion is made of the existence of documents of value with a very good condition. For large width is used on the presence of Value documents or an inhomogeneous stack of value documents closed.
Die Erfindung betrifft auch eine Vorrichtung zur Steuerung der Nachführung eines Wertdokumentstapels, von dem die Wertdokumente vereinzelt werden sollen. Die Vorrichtung weist einen Bildsensor, eine Auswerteeinrichtung zum Auswerten des durch den Bildsensor aufgenommenen Bilds und eine Steuereinrichtung zur Steuerung der Nachführung des Wertdokumentstapels auf.The invention also relates to a device for controlling the tracking of a value document stack from which the value documents are to be singulated. The device has an image sensor, an evaluation device for evaluating the image recorded by the image sensor, and a control device for controlling the tracking of the value document stack.
Der Bildsensor ist derart in der Nähe des Vereinzelers angeordnet, dass er ein Bild einer Seite des Wertdokumentstapels aufnehmen kann. Der Bildsensor erfasst das Bild von einer Seite des Wertdokumentstapels, d.h. aus einer Richtung, die senkrecht zur Stapelrichtung des Wertdokumentstapels verläuft. Der Bildsensor ist vorzugsweise ein zweidimensionaler Bildsensor. Der Wertdokumentstapel, von dem die Wertdokumente mittels des Vereinzelers vereinzelt werden sollen, wird nachgeführt, um jeweils das oberste Wertdokument des Wertdokumentstapels in den Erfassungsbereich einer Vorschubeinrichtung des Vereinzelers zu bringen. Der Wertdokumentstapel liegt dabei auf z.B. einer Andruckplatte auf, die in Richtung zum Vereinzeler bewegt wird, um den Wertdokumentstapel zu dem Vereinzeler nachzuführen.The image sensor is arranged in the vicinity of the singulator so that it can take an image of one side of the document of value-value stack. The image sensor captures the image from one side of the value document stack, i. from a direction perpendicular to the stacking direction of the document of value stack. The image sensor is preferably a two-dimensional image sensor. The value-document stack, from which the value documents are to be singled out by means of the singler, is updated in order to bring in each case the uppermost value document of the value-document stack into the coverage area of a feed device of the singler. The value document stack is based on e.g. a pressure plate which is moved in the direction of the singler to track the value document stack to the separator.
Die Auswerteeinrichtung ist mit dem Bildsensor verbunden und empfängt von diesem Bilddaten des aufgenommenen Bilds. Die Auswerteeinrichtung ist dazu ausgebildet, das von dem Bildsensor aufgenommene Bild der Seite des Wertdokumentstapels auszuwerten, um in einem Bildabschnitt des Bilds die Kanten der einzelnen Wertdokumente zu erkennen und um in dem Bildabschnitt eine Anzahl an Wertdokumentkanten und ggf. die Helligkeit des Bilds zu ermitteln. Die Auswerteeinrichtung weist z.B. entsprechende Härdwareschaltungen und/ oder ein entsprechendes Softwareprogramm zur Kantenerkennung auf. Die Auswerteeinrichtung prüft, ob sie beim Auswerten des Bilds in einem vorgesehenen Bildabschnitt des Bilds die Anzahl an Wertdokumentkanten ermitteln kann. Falls sie die die Anzahl an Wertdokumentkanten nicht oder nur unzureichend ermitteln kann, ermittelt die Auswerteeinrichtung zusätzlich eine Helligkeit des Bilds in diesem Bildabschnitt.The evaluation device is connected to the image sensor and receives from this image data of the recorded image. The evaluation device is designed to evaluate the image of the page of value document stack recorded by the image sensor in order to recognize the edges of the individual value documents in an image section of the image and to display in the image section a number of document edges and possibly the brightness of the document To determine image. The evaluation device has, for example, corresponding Härdwareschaltungen and / or a corresponding software program for edge detection. The evaluation device checks whether it can determine the number of value document edges when evaluating the image in a designated image section of the image. If it can not or only insufficiently determine the number of value document edges, the evaluation device additionally determines a brightness of the image in this image section.
Die Auswerteeinrichtung ist mit einer Steuereinrichtung verbunden, die zur Steuerung der Nachführung des Wertdokumentstapels in Abhängigkeit der Anzahl der Wertdokumentkanten ausgebildet ist, die die Auswerteinrichtung in dem aufgenommenen Bild ermittelt hat. Beispielsweise sind dazu in der Steuereinrichtung zwei oder mehrere Nachführmodi vorgesehen, die durch entsprechende Hardware und/oder Software der Steuereinrichtung realisiert sein können. Die Auswerteeinrichtung sendet die Informationen darüber, ob die Erkennung der Wertdokumentkanten erfolgreich war, sowie ggf. die Anzahl an Wertdokumentkanten und die ggf. die Helligkeit des Bildabschnitts an die Steuereinrichtung. Die Steuereinrichtung steuert die Nachführung des Wertdokumentstapels, beim Vereinzeln der in diesem Bildabschnitt abgebildeten Wertdokumente, in Abhängigkeit der ermittelten Anzahl an Wertdokumentkanten und in Abhängigkeit der Helligkeit, die die Auswerteeinrichtung im Bildabschnitt dieser Wertdokumente ermittelt hat. Die Steuereinrichtung wählt den Nachführmodus in Abhängigkeit der Anzahl an Wertdokumentkanten und, falls dies nicht möglich ist, in Abhängigkeit der Helligkeit des Bildabschnitts. Im Nachführmodus ist festgelegt, ob der Wertdokumentstapel nachgeführt wird, und wenn ja, mit welcher Geschwindigkeit der Wertdokumentstapel nachgeführt wird. Zur Nachführung veranlasst die Steuereinrichtung eine entsprechende Bewegung der Andruckplatte, die den Wertdokumentstapel dem Vereinzeler zuführt.The evaluation device is connected to a control device which is designed to control the tracking of the document of value document as a function of the number of value document edges which the evaluation device has determined in the recorded image. For example, two or more tracking modes are provided for this purpose in the control device, which can be implemented by appropriate hardware and / or software of the control device. The evaluation device sends the information about whether the recognition of the value document edges was successful, as well as possibly the number of value document edges and possibly the brightness of the image section to the control device. The control device controls the tracking of the document of value documents, the separation of the value documents mapped in this image section, as a function of the determined number of document edges and the brightness which the evaluation device has determined in the image section of these documents of value. The control device selects the tracking mode as a function of the number of value document edges and, if this is not possible, as a function of the brightness of the image section. In the follow-up mode, it is determined whether the value-document stack is updated and, if so, with which speed the value-document stack is tracked. For tracking causes the control device a corresponding movement of the pressure plate, which supplies the value document stack the separator.
Der Bildsensor kann auch dazu ausgebildet sein, sich selbstständig auf Verschmutzung zu überprüfen, und zwar bevorzugt zu einem Zeitpunkt, zu dem sich in seinem Sichtfeld kein Wertdokumentstapel befindet. Falls dann eine zu geringe Helligkeit detektiert wird, wird auf eine Verschmutzung des Bildsensors geschlossen. Als Folge der Verschmutzung kann eine automatische Reinigung des Bildsensors oder einer diesem vorgelagerten Linse oder Fenster (z.B. durch Anblasen) erfolgen oder es kann eine entsprechende Meldung von der Wertdokumentbearbeitungsvorrichtung ausgegeben werden, z.B. um eine Bedienperson zu einer Reinigung des Bildsensors, der Linse oder des Fensters aufzufordern.The image sensor can also be designed to independently check for contamination, and preferably at a time when there is no value document stack in its field of view. If then a too low brightness is detected, it is concluded that contamination of the image sensor. As a result of soiling, automatic cleaning of the image sensor or lens or window upstream therefrom (e.g., by blowing) may occur or a corresponding message may be output from the value-document processing device, e.g. to prompt an operator to clean the image sensor, lens or window.
Vorteilhaft kann an derjenigen Seite des Wertdokumentstapels, die dem Bildsensor gegenüberliegt, eine Referenzfläche angebracht sein, so dass zu Zeitpunkten, in denen sich kein Wertdokumentstapel im Sichtfeld des Bildsensors befindet, die Helligkeit des von dem Bildsensor aufgenommenen Bilds durch die Referenzfläche bestimmt wird. Dadurch wird erreicht, dass das aufgenommene Bild des Wertdokumentstapels eine definierte Hintergrundhelligkeit aufweist. Die Referenzfläche ermöglicht es, von Zeit zu Zeit eine Referenzhelligkeit zu detektieren, welche in die Bildauswertung einbezogen wird. Beispielsweise wird die Helligkeitsschwelle, mit der die detektierte Helligkeit des Bildabschnitts verglichen wird, in Abhängigkeit der Referenzhelligkeit gewählt, die der Bildsensor von der Referenzfläche (ohne vorhandenen Wertdokumentstapel) detektiert. Die Referenzfläche kann schwenkbar ausgebildet sein oder fest installiert. Bevorzugt weist die Referenzfläche - soweit sie im Sichtfeld des Bildsensors liegt - eine gleichmäßige Helligkeit auf.Advantageously, on the side of the document of value document which lies opposite the image sensor, a reference surface may be applied, so that at times when no document of value is in the field of vision of the image sensor, the brightness of the image captured by the image sensor is determined by the reference surface. This ensures that the recorded image of the document of value stack has a defined background brightness. The reference surface makes it possible to detect a reference brightness from time to time, which is included in the image analysis. By way of example, the brightness threshold with which the detected brightness of the image section is compared is selected as a function of the reference brightness that the image sensor detects from the reference surface (without existing value-document stack). The reference surface may be designed to be pivotable or permanently installed. Preferably, the reference surface - as far as it is in the field of view of the image sensor - a uniform brightness.
Die Erfindung betrifft auch eine Vereinzelungsvorrichtung, die eine Vorrichtung zur Steuerung der Nachführung aufweist sowie eine Wertdokumentbearbeitungsvorrichtung, die eine solche Vereinzelungsvorrichtung aufweist. Die Vereinzelungsvorrichtung enthält z.B. eine Vorschubeinrichtung, ein Vereinzelungselement (z.B. Walze) und eine Rückhalteeinrichtung sowie ggf. die Andruckplatte zur Aufnahme und zum Nachführen des Wertdokumentstapels. Die Vorrichtung zur Wertdokumentbearbeitung weist ferner ein Transportsystem zum transportieren der Wertdokumente, Sensoren zur Prüfung der Wertdokumente und ggf. eines oder mehrere Ausgabefächer und/ oder Aufbewahrungsbehälter für die Wertdokumente auf.The invention also relates to a separating device having a device for controlling the tracking and a value-document processing device having such a separating device. The singulation device contains e.g. a feed device, a separating element (for example a roller) and a retaining device and optionally the pressure plate for receiving and for tracking the value-document stack. The device for value document processing further has a transport system for transporting the value documents, sensors for checking the value documents and possibly one or more output compartments and / or storage containers for the value documents.
Nachfolgend wird die Erfindung anhand von Figuren beschrieben. Es zeigen:
- Fig. 1a
- Ansicht einer Vorrichtung zur Wertdokumentbearbeitung von oben,
- Fig. 1b
- Seitenansicht des Vereinzelers der Vorrichtung,
- Fig. 2a-d
- Seitenansichten eines Wertdokumentstapels und Bildabschnitt, in dem eine Erkennung der Wertdokumentkanten erfolgreich ist (
Fig. 2a-b ), teilweise erfolgreich ist (Fig. 2c ) und nicht erfolgreich ist (Fig. 2d ), - Fig. 3a-d
- vier Beispiele für die Häufigkeitsverteilung der Pixelintensitäten in einem Bildabschnitt, in dem die Anzahl an Wertdokumentkanten nicht ermittelt werden konnte.
- Fig. 1a
- View of a device for value document processing from above,
- Fig. 1b
- Side view of the separator of the device,
- Fig. 2a-d
- Side views of a value document stack and image section in which recognition of the value document edges is successful (
Fig. 2a-b ), partially successful (Fig. 2c ) and unsuccessful (Fig. 2d ) - Fig. 3a-d
- Four examples of the frequency distribution of the pixel intensities in an image section in which the number of value document edges could not be determined.
Die Vorrichtung 100 weist ein Kameramodul 3 auf, das im Innenraum der Vorrichtung, an derjenigen Seite des Vereinzelers 30 angeordnet ist, die von der Bedienerseite B der Vorrichtung 100 abgewandt ist. Das Kameramodul 3 ist aus dem Innenraum der Vorrichtung 100 in das Vereinzelerfach 6 gerichtet, um ein Bild des Wertdokumentstapels 10 von der Seite des Wertdokumentstapels aufzunehmen. Der Wertdokumentstapel 10 wird dabei in y-Richtung betrachtet. Der Bildsensor 1 des Kameramoduls 3 ist so angeordnet ist, dass er ein Bild der dem Innenraum der Vorrichtung 100 zugewandten Seite des Wertdokumentstapels 10 aufnehmen kann. Zur Beleuchtung des Wertdokumentstapels 10 sind zwei Lichtquellen 2 an dem Kameramodul 3 vorgesehen, die synchron zueinander Blitzlicht aussenden. Das von dem Bildsensor 1 aufgenommene Bild wird mittels einer Auswerteeinrichtung 4 ausgewertet, die eine Bildverarbeitung durchführt, um die Kanten der einzelnen Wertdokumente zu erkennen und aus dem aufgenommenen Bild die Anzahl an Wertdokumentkanten bzw. die Dichte der Wertdokumente zu ermitteln. Dazu wird der Bildabschnitt einem Kantenerkennungsverfahren unterzogen, z.B. mit Hilfe von Kantenoperatoren, wie sie aus dem Stand der Technik bekannt sind. Die Auswerteeinrichtung 4 ist mit der Steuereinrichtung 21 der Andruckplatte 20 verbunden, welche die Bewegung der Andruckplatte 20 entlang der z-Richtung steuert.The
Zur Vereinzelung des Wertdokumentstapels 10 wird das oberste Wertdokument 5 durch die Vorschubeinrichtung 31 in Richtung der Vereinzelungswalze 33 (x-Richtung) transportiert. Diese ergreift dann das oberste Wertdokument und zieht es vom Stapel 10 ab. Die dem obersten Wertdokument nachfolgenden Wertdokumente des Stapels 10 werden von der Rückhalteeinrichtung 32 zurückgehalten. Für den Fall, dass von der Vorschubeinrichtung 31 mehrere Wertdokumente in Richtung der Vereinzelungswalze 33 transportiert werden, ist zusätzlich die Rückhaltewalze 34 vorgesehen, die dann die nachfolgenden Wertdokumente wieder in den Stapel 10 zurücktransportiert. Das von der Vereinzelungsvorrichtung 30 vereinzelte Wertdokument wird dann an ein Transportsystem 40 übergeben werden. Dieses weist z.B. Transportrollen 41 auf, mittels derer Transportriemen 42 bewegt werden. Zum Transport wird das jeweilige Wertdokument zwischen den Transportriemen 42 eingeklemmt.To separate the value-
Da die Anzahl an Wertdokumenten in dem Wertdokumentstapel 10 mit fortschreitender Vereinzelung der Wertdokumente abnimmt, wird die Andruckplatte 20 mit Hilfe eines Motors entlang der z-Richtung nachgeführt, um den Wertdokumentstapel weiter anzuheben. Dadurch kommt jeweils das oberste Wertdokument 5 in den Erfassungsbereich der Vorschubeinrichtung 31 und kann vereinzelt werden. Die Nachführgeschwindigkeit, mit der die Andruckplatte 20 nach oben bewegt wird, wird jedoch in Abhängigkeit der Dichte des Wertdokumentstapels 10 unterschiedlich groß gewählt. Bei locker aufeinander liegenden Wertdokumenten (geringe Stapeldichte) wird der Stapel 10 mit relativ großer Geschwindigkeit nachgeführt, um eine hohe Vereinzelungsrate zu erreichen. Bei einem dichten Wertdokumentstapel 10 wird die Nachführung verlangsamt oder zeitweise angehalten, damit es zu keiner Störung der Vereinzelung kommt. Um den Abstand D zwischen der Andruckplatte 20 und der Vorschubeinrichtung 31 während Vereinzelung an die Dichte der jeweils zu vereinzelnden Wertdokumente anzupassen, wird die Bewegung der Andruckplatte 20 entlang der z-Richtung mittels der Steuereinrichtung 21 gesteuert. Die Steuereinrichtung 21 steuert die Stelleinrichtung 25, die mit der Andruckplatte 20 mechanisch verbunden ist.Since the number of value documents in the
Die Dichte des Wertdokumentstapels wird aus der Anzahl K an Wertdokumentkanten ermittelt, die in einem Bildabschnitt 8 erkannt werden. In
Der Bildabschnitt 8 wird bevorzugt in demjenigen Seitenabschnitt des Wertdokumentstapels aufgenommen, der sich in der Nähe des Vereinzelers 30 befindet (in
Der auf der Andruckplatte 20 aufliegende Wertdokumentstapel 10 besteht im Beispiel aus
Im Beispiel der
Beispielsweise wird die Nachführung der Andruckplatte 20 in Abhängigkeit der Anzahl K an Wertdokumenten gesteuert, die in dem Bildabschnitt 8 erkannt wurden. So kann z.B. im Fall der zehn Wertdokumentkanten in
Alternativ kann allerdings auch in beiden Fällen dieselbe Nachführgeschwindigkeit der Andruckplatte 20 gewählt werden. Zum Beispiel kann eine Anzahl Z an Wertdokumentkanten als Schwelle vorgegeben sein, z.B. Z=20, und in allen Fällen, in denen die in dem Bildabschnitt 8 ermittelte Anzahl unterhalb der Schwelle Z liegt, eine vorbestimmte Nachführgeschwindigkeit G eingestellt werden. Werden Z oder mehr als Z Wertdokumentkanten in dem Bildabschnitt 8 erkannt, so erfolgt die Nachführung langsamer oder wird zeitweise angehalten.Alternatively, however, the same tracking speed of the
In
Für den Bildabschnitt 8 aus
Als Maß für die Lage der Häufigkeitsverteilung kann z.B. der Mittelwert M der Häufigkeitsverteilung bestimmt werden und mit einer Schwelle T verglichen werden, die z.B. im Vorfeld der Wertdokumentbearbeitung festgelegt wurde. Überschreitet der Mittelwert M die Schwelle T, wie es bei der Häufigkeitsverteilung d aus
Die Helligkeitsschwelle T kann auch mit einem Helligkeitsintervall T+/-Δ versehen werden, vgl.
Alternativ oder zusätzlich zur Lage M der Häufigkeitsverteilung kann auch die Breite S der Häufigkeitsverteilung berücksichtigt werden, z.B. die Halbwertsbreite. Als Maß für die Breite S kann auch die Standardabweichung der Pixelintensität I in dem Bildabschnitt 8 verwendet werden. Zum Beispiel wird - zusätzlich zur Lage des Mittelwerts M oberhalb der Schwelle T - auch eine geringe Breite S als Hinweis für das Vorliegen eines sehr dichten Stapels (Fall der
Ist die Breite S dagegen groß, z.B. größer als ein vorgegebener Breitengrenzwert S*, wie es bei der Häufigkeitsverteilung f der
Falls die Anzahl K der Kanten nicht bestimmt werden kann, aber auch die Lage M und die Breite S der Häufigkeitsverteilung auf keinen der oben genannten Fälle schließen lässt, kann die Auswertung auch auf einen Teil des Bildabschnitts 8 beschränkt werden. Dies kann z.B. hilfreich sein, wenn in dem Bildabschnitt 8 verschiedene Qualitäten von Wertdokumenten enthalten sind, wie es im Beispiel der
Es kann aber auch eine aufwändigere Analyse der Häufigkeitsverteilung durchgeführt werden, z.B. eine Ausgleichsrechnung zur Identifizierung von Kurvenmaxima. Durch eine aufwändigere Analyse können die zwei Peaks P1, P2 der Häufigkeitsverteilung g identifiziert werden und deren Lage und Breite zur Steuerung der Nachführung verwendet werden. Die Breite dieser beiden Peaks P1, P2 ist relativ gering und lässt auf zwei homogene Teilstapel aus dicht aufeinander liegenden Wertdokumenten schließen. Die Lage der Peaks auf der Intensitätsachse I weist darauf hin, dass einer der Teilstapel aus hellen Wertdokumenten besteht und der andere Teilstapel aus etwas dunkleren Wertdokumenten. Aufgrund der großen Dichte beider Wertdokumentstapel sollte die Nachführung entsprechend verlangsamt oder angehalten werden, während diese vereinzelt werden.However, a more complex analysis of the frequency distribution can also be carried out, for example a compensation calculation for the identification of curve maxima. Through a more elaborate analysis, the two peaks P1, P2 of the frequency distribution g can be identified and their position and width used to control the tracking. The width of these two peaks P1, P2 is relatively small and suggests two homogeneous partial stacks of dense documents of value. The position of the peaks on the intensity axis I indicates that one of the sub-stacks consists of bright value documents and the other sub-stacks consist of something darker value documents. Due to the high density of both value document stacks, the tracking should be slowed or stopped as they are being singulated.
In denjenigen Fällen, in denen die Auswertung des Bildabschnitts 8 auf keinen der oben erwähnten Fälle schließen lässt, kann die Nachführgeschwindigkeit beibehalten werden, wie sie auf Basis der Anzahl K' an Wertdokumentkanten eines früher ausgewerteten Bildabschnitts 8' desselben Wertdokumentstapels 10 gewählt wurde oder auf eine vordefinierte Nachführgeschwindigkeit gesetzt werden.In those cases in which the evaluation of the
Falls trotz der Steuerung der Nachführung dennoch Probleme bei der Vereinzelung der Wertdokumente auftreten, so wird die Vereinzelung angehalten und die Vorrichtung 100 gibt eine entsprechende Meldung aus.If despite the control of the tracking nevertheless problems occur in the separation of the value documents, the separation is stopped and the
Die durch den Bildsensor 1 aufgenommenen Bilder, auf denen die Seite des zu vereinzelnden Wertdokumentstapels 10 abgebildet ist, können an einer Anzeigeeinrichtung der Vorrichtung 100, z.B. an einem Display, dargestellt werden. Das Darstellen der aufgenommenen Bilder erfolgt vorzugsweise in Echtzeit mit der Vereinzelung der Wertdokumente, wobei die Bilder einem Bediener bzw. einer Serviceperson der Vorrichtung live oder unmittelbar nach der Aufnahme der Bilder gezeigt werden können. Die Bilder umfassen z.B. jeweils den Bildabschnitt 8, auf dessen Basis die Nachführung des Stapels gesteuert wird und/oder jeweils das oberste Wertdokument, das gerade vereinzelt wird. Aufgrund der gepulsten Beleuchtung mittels der Lichtquellen ergibt die schnelle Abfolge der einzelnen aufgenommenen Bilder eine Art Film, der dazu verwendet werden kann, die Parameter zur Steuerung der Nachführung und/oder die Vereinzelungsparameter des Vereinzelers manuell zu optimieren.The images taken by the image sensor 1, on which the side of the document of
Claims (16)
- A method for controlling the feed of a value document stack (10) from which value documents are singled, having the steps:- recording an image of a side of the value document stack (10),- evaluating the recorded image of the side of the value document stack, in order to recognize the edges of the individual value documents in an image portion (8) of the image and in order to ascertain a number (K) of value document edges in the image portion (8),- controlling the feed of the value document stack in dependence on the number (K) of the value document edges which were ascertained in the image portion (8),characterized in- that upon the evaluation of the recorded image, if in the image portion (8) the number (K) of value document edges cannot, or not sufficiently, be ascertained, additionally a brightness of the image is ascertained in this image portion (8), and- that upon the singling of the value documents imaged in this image portion (8) the feed of the value document stack (10) is controlled in dependence on the brightness ascertained in this image portion (8).
- The method according to claim 1, characterized in that the feed of the value document stack, upon the singling of the value documents imaged in this image portion (8), is controlled in dependence on the brightness ascertained in this image portion (8) in such a way that with increasing brightness of the image portion (8) the feed speed is reduced.
- The method according to any of the preceding claims, characterized in that the brightness ascertained in the image portion (8) is compared with a brightness threshold (T).
- The method according to claim 3, characterized in that in the case when the brightness ascertained in the image portion (8) exceeds the brightness threshold (T) the feed upon the singling of the value documents imaged in this image portion (8) is temporarily stopped or that upon the singling of the value documents imaged in this image portion (8) a lower feed speed is chosen than in the case when the brightness ascertained in this image portion does not exceed the brightness threshold (T).
- The method according to claim 3, characterized in that in the case when the brightness ascertained in the image portion (8) exceeds the brightness threshold (T) the feed upon the singling of the value documents imaged in this image portion (8) is temporarily stopped or that upon the singling of the value documents imaged in this image portion (8) a lower feed speed (GO) is chosen than in the case when value document edges are recognized in the image portion (8).
- The method according to any of claims 3 to 5, characterized in that in the case when the brightness in the image portion (8) ascertained in this image portion (8) does not exceed the brightness threshold (T), the feed upon the singling of the value documents imaged in the image portion (8) remains unchanged or the feed speed is set to a feed speed (G) predefined for this case.
- The method according to any of the preceding claims, characterized in that, additionally to the feed of the value document stack (10), also the singling rate with which the value documents are singled is controlled in dependence on the brightness ascertained in the image portion (8), wherein the singling rate in particular is reduced with decreasing brightness of the image portion (8).
- The method according to any of the preceding claims, characterized in that upon ascertaining the brightness of the image in the image portion (8) there is formed a mean value (M) of the pixel intensity (I) in the image portion (8) as a measure for the brightness of the image in the image portion (8) and the feed of the value document stack (10) is controlled in dependence on this mean value (M).
- The method according to any of the preceding claims, characterized in that upon the evaluation of the recorded image, if in an image portion (8) of the image the number of value document edges (K) cannot, or not sufficiently, be ascertained, for ascertaining the brightness the frequency distribution (d, e, f, g) of the brightness in the image portion (8) is ascertained and the feed of the value document stack (10) is controlled in dependence on the location (M) of the frequency distribution and/or in dependence on the width (S) of the frequency distribution.
- The method according to claim 9, characterized in that due to the brightness ascertained in the image portion the feed of the value document stack is stopped under the condition or the feed speed is reduced under the condition that the mean value (M) of the frequency distribution in the image portion (8) exceeds a prescribed threshold (T).
- The method according to claim 9 or 10, characterized in that due to the brightness ascertained in the image portion the feed of the value document stack is stopped under the condition or the feed speed thereof is reduced under the condition that the width (S) of the frequency distribution in the image portion (8) lies under a prescribed width limit value (S*).
- The method according to any of the preceding claims, characterized in that the feed which was stopped due to the ascertained brightness or whose speed was reduced due to the ascertained brightness remains unchanged as long as in a later recorded image portion (8) again a number (K) of value document edges can be ascertained.
- An apparatus for controlling the feed of a value document stack (10) from which the value documents are to be singled, comprising:- an image sensor (1) for recording an image of a side of the value document stack (10),- an evaluation device (4) for evaluating the recorded image, which is configured to evaluate the image of the side of the value document stack, in order to recognize the edges of the individual value documents in an image portion (8) of the image and in order to ascertain a number (K) of value document edges in the image portion (8),- a control device (21) for controlling the feed of the value document stack in dependence on the number (K) of value document edges which the evaluation device (4) has ascertained in the image portion (8),characterized in that- the evaluation device (4) ascertains, if upon the evaluation of the recorded image in the image portion (8) it cannot, or not sufficiently, ascertain the number (K) of value document edges, additionally a brightness of the image in this image portion (8), and- that the control device (21) controls the feed of the value document stack (10) for the value documents imaged in this image portion (8) in dependence on the brightness ascertained in this image portion (8).
- The apparatus according to claim 13, characterized in that the control device (21) is configured to control the feed of the value document stack (10) in accordance with the method of any of claims 1 to 12.
- A singling apparatus (30) for singling value documents from a value document stack, which is configured to single the value documents from the value document stack and which has an apparatus for controlling the feed of the value document stack according to any of claims 13 to 14.
- An apparatus (100) for processing value documents, which has a singling apparatus according to claim 15.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102012017770.4A DE102012017770A1 (en) | 2012-09-07 | 2012-09-07 | Device and method for processing value documents |
PCT/EP2013/002690 WO2014037119A1 (en) | 2012-09-07 | 2013-09-06 | Device and method for controlling the tracking of a value document stack |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2892835A1 EP2892835A1 (en) | 2015-07-15 |
EP2892835B1 true EP2892835B1 (en) | 2016-11-09 |
Family
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Family Applications (1)
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EP13759983.3A Not-in-force EP2892835B1 (en) | 2012-09-07 | 2013-09-06 | Device and method for controlling the tracking of a value document stack |
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US (1) | US9216869B2 (en) |
EP (1) | EP2892835B1 (en) |
CN (1) | CN104487368B (en) |
DE (1) | DE102012017770A1 (en) |
IN (1) | IN2014KN02742A (en) |
RU (1) | RU2632323C2 (en) |
WO (1) | WO2014037119A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6145793B2 (en) * | 2014-09-04 | 2017-06-14 | コニカミノルタ株式会社 | Sheet supply apparatus and image forming apparatus |
JP2016069169A (en) * | 2014-09-30 | 2016-05-09 | 株式会社東芝 | Paper sheet feeding device |
EP3261966B1 (en) * | 2015-02-25 | 2019-11-20 | Kimberly-Clark Worldwide, Inc. | Method and system for determining usage of a rolled or stacked product |
FR3037261B1 (en) * | 2015-06-11 | 2021-02-26 | Solystic | DEPILING DEVICE WITH VISION SYSTEM |
US10556758B1 (en) * | 2017-03-08 | 2020-02-11 | Maxco Supply, Inc. | Denester and method of denesting a stack of containers |
US10874265B2 (en) | 2017-05-10 | 2020-12-29 | Gpcp Ip Holdings Llc | Sheet product level sensor calibration and indication systems and methods |
DE102017011591A1 (en) * | 2017-12-14 | 2019-06-19 | Giesecke+Devrient Currency Technology Gmbh | Packaging containing printing materials, folding carton and use |
CN109534031A (en) * | 2018-11-22 | 2019-03-29 | 中山市德丰科技服务有限公司 | Feeding device of ink-water printing machine |
DE102019000085A1 (en) * | 2019-01-07 | 2020-07-09 | Giesecke+Devrient Currency Technology Gmbh | Device and method for separating documents of value, in particular bank notes, and a document processing system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1089329B (en) * | 1957-01-05 | 1960-09-15 | Smith Paper Mills Ltd Howard | Device for the constant stacking and counting of sheets of paper with a lowering device |
DE4437722A1 (en) * | 1994-10-21 | 1996-04-25 | Giesecke & Devrient Gmbh | Method and device for processing banknotes |
DE19543634A1 (en) | 1995-11-23 | 1997-05-28 | Giesecke & Devrient Gmbh | Device and method for separating sheet material from a stack |
NL1022257C2 (en) | 2002-12-24 | 2004-06-25 | Paulina Theodora Gerar Donders | Method for analyzing banknotes. |
WO2004081887A1 (en) * | 2003-03-14 | 2004-09-23 | Fujitsu Limited | Paper sheet identifying method and paper sheet identifying device |
EP2246825B1 (en) * | 2009-04-28 | 2014-10-08 | Banqit AB | Method for a banknote detector device, and a banknote detector device |
JP5330519B2 (en) * | 2009-07-30 | 2013-10-30 | 株式会社東芝 | Bundle state detection system and separation / extraction device |
JP5431078B2 (en) * | 2009-09-03 | 2014-03-05 | 株式会社東芝 | Laminated paper sheet state determination apparatus and paper sheet processing apparatus |
EP2585983B1 (en) | 2010-06-25 | 2016-02-10 | Kba-Notasys Sa | Method and system for touchless counting of stacked substrates, especially bundled banknotes |
-
2012
- 2012-09-07 DE DE102012017770.4A patent/DE102012017770A1/en not_active Withdrawn
-
2013
- 2013-09-06 CN CN201380038819.0A patent/CN104487368B/en active Active
- 2013-09-06 WO PCT/EP2013/002690 patent/WO2014037119A1/en active Application Filing
- 2013-09-06 EP EP13759983.3A patent/EP2892835B1/en not_active Not-in-force
- 2013-09-06 RU RU2015101157A patent/RU2632323C2/en active
- 2013-09-06 US US14/426,923 patent/US9216869B2/en active Active
-
2014
- 2014-11-27 IN IN2742KON2014 patent/IN2014KN02742A/en unknown
Also Published As
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---|---|
US9216869B2 (en) | 2015-12-22 |
CN104487368A (en) | 2015-04-01 |
IN2014KN02742A (en) | 2015-05-08 |
CN104487368B (en) | 2016-08-17 |
RU2015101157A (en) | 2016-08-10 |
EP2892835A1 (en) | 2015-07-15 |
DE102012017770A1 (en) | 2014-04-03 |
WO2014037119A1 (en) | 2014-03-13 |
US20150274467A1 (en) | 2015-10-01 |
RU2632323C2 (en) | 2017-10-04 |
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