EP3352995B1 - Method and device for producing a security document - Google Patents

Description

The invention relates to a method and a device for producing a security document, in particular a book-like security document.

It is known that when security documents are produced, they are made available in an oversize and then trimmed. The trimming can be done, for example, by punching, the punching also having a multi-sided trimming, e.g. a three-sided trimming.

The DE 101 24 068 A1 discloses an apparatus and a method for the automatic positioning and trimming of material to be cut made of paper materials or paper-like-like, stackable materials, in particular for triple-sided trimming of bound printed products. The device described has two knives which cut orthogonally and out of phase with one another. The knives simultaneously cut through different sections of the material to be cut.

The DE 10 2013 104 745 A1 discloses a method and a corresponding device for producing a security document.

The DE 10 2008 009 843 A1 discloses a cutter for trimming a protruding peripheral portion of at least one flexible layer in a multi-layer construction.

The DE 10 2007 018 450 A1 discloses a laminated security document with a composite document.

In particular in the case of book-like security documents, the security document is trimmed to a desired format as a three-sided trim in a closed state of the security document, all edges of the security document being trimmed except for an edge forming the spine, which can also be referred to as the spine edge. For this purpose, circumcision trajectories or lines are usually determined relative to the edge that forms the spine of the book. It is problematic here that the location and / or orientation of document features that are on an internal and thus hidden side of the Security document exist, will not be considered. Due to manufacturing tolerances in process steps that precede trimming, the position and / or orientation of these document features can change relative to the edge of the book spine. If the circumcision trajectory is thus determined only on the basis of detectable, external document features, these internal document features can have an undesired position and / or orientation after the trimming, for example relative to the edges of the trimmed security document. This can mean that the security document produced in this way forms rejects.

It is therefore necessary to carry out manual quality checks frequently and, if necessary, to change a circumcision trajectory accordingly.

The technical problem thus arises of creating a method and an apparatus for producing a security document which reduce rejects in production.

The solution to the technical problem results from the subjects with the features of claims 1 and 10. Further advantageous embodiments of the invention result from the subclaims.

It is a basic idea of the invention to provide a protrusion position in a security document to be trimmed, wherein an optical detection of the protrusion position enables the determination of a document-related spatial position of document features that cannot be detected optically. Depending on the spatial position determined in this way, a circumcision trajectory can then be determined.

A method for producing a security document is proposed. The security document can have a desired format, for example an ID1 format, an ID2 format or an ID3 format.

Preferably, but not necessarily, the security document is a book-like security document. A book-like security document can comprise a cover part and a book block part, the cover part closing the book block part Surrounds the state of the security document. Alternatively, the security document can also be provided as a card body.

The security document is provided in an oversize format. This can mean that at least one dimension, for example a length, a width or a height, is larger than the desired or final dimension in the finished state of the security document. The finished state can indicate a ready-to-use state. Preferably two dimensions, preferably the length and width, are larger than the corresponding target dimension. For example, a security document may have a protrusion with a predetermined dimension along the corresponding spatial direction, for example along a longitudinal direction or transverse direction, in one or more edge regions. The protrusion can be 5 mm, for example. With a book-like security document, e.g. three edges each have an overhang, in particular two transverse edges and one longitudinal edge. In this case, the security document can have no protrusion only in the marginal area forming the spine. The excess can also be referred to as bleed allowance. In the case of a card-shaped security document, however, this can of course have an overhang along all four edges.

The security document can be trimmed in at least one edge area or in selected, but not all, edge areas or in all edge areas.

The security document is also provided with at least one protrusion layer. The protruding layer can in particular be part of the book block part explained above. The protruding layer can in particular be provided by at least one side of the book block part. Pages of the book block part can e.g. serve to enter a visa. The excess layer is preferably provided by a passport card side of the book block part. Such a passport card page is generally not used to enter a visa. Pages of the book block part can for example consist of paper, plastic or a composite material. After collation, pages of the book block part can be laser perforated.

The passport card side can be formed, for example, by a plastic card that has one or preferably several security features. The passport card page can continue have identifying or personalizing features of a person authorized to keep the security document. For example, the passport card page can have or encode a photo and person-specific data of the holder.

Of course, the method can also be used for non-book-like security documents, for example security documents in card format. In this case, the protruding layer can be an inner layer of the card body, for example a hologram layer and / or a so-called inlay layer and / or a personalized lamination layer.

The protrusion layer can designate a position of the security document that is at least one dimension larger than the security document in oversize. The protruding layer can also be larger in at least one dimension than the dimension of the front and / or back of the cover part. This means that an edge area of the protrusion layer can be visually and / or optically detected even in the closed state of a book-like security document in oversize.

In other words, the overlap layer has at least one section which overlaps over at least part of at least one side edge of the security document in oversize. This section can also be referred to as the protruding section. For example, the protruding section can protrude 3 mm to 6 mm above the side edge.

The protruding section can protrude along the entire side edge. In this case, the protruding section can be designed in the form of a strip. The protruding section can also only protrude along part of the side edge. The protruding section can also comprise a plurality of sections, each of which protrudes along a part of the side edge.

Furthermore, an image of at least the protruding section of the protruding layer is generated. An image of the security document is preferably generated in the oversize format with the overhang section. The image can be generated by an image generation device, in particular a camera.

Furthermore, a document-related spatial position of the protruding section is determined on the basis of an image. A document-related spatial position can refer to a spatial position in a document-fixed coordinate system of the uncircumcised security document, that is to say of the security document in the oversize format.

The spatial position of the projecting section can be determined, for example, as the spatial position of a document feature of the projecting section, a reference point or a reference line of the projecting section or a coordinate system fixed to the projecting section. For example, an origin of this coordinate system can lie at a corner or in a geometric center of the protruding section. Furthermore, axes can be oriented parallel to the edges of the protruding section.

The spatial position of the document-fixed coordinate system of the untrimmed security document can also be determined based on images. The spatial position can in particular designate a position of origin and an orientation of the axes of this coordinate system. For example, an origin of the document-fixed coordinate system can lie at a corner or in a geometric center of the untrimmed security document. In addition, axes can be oriented parallel to the edges of the untrimmed security document.

The document-related spatial position can also denote a spatial position of a document feature or document section relative to a (further) document feature, in particular an imaged document feature of the untrimmed security document. This can also be referred to as the relative space position. For example, the relative space position can be a distance of the document feature or document section from the (further) document feature, for example an edge of the document.

A document feature can be a graphic element or a combination of graphic elements of the security document. A document feature can also be a security feature. A document feature can also be a property of the document, for example a geometric property. A document feature can also be an edge or a property of the edge, in particular a geometric course of the edge, the document. The edge can designate an edge of the document.

A document feature can e.g. be or include a letter or symbol. A document feature can also be a text, a hologram or an embossing. A document feature can also be a so-called registration mark. The document feature can in particular be arranged on the passport card side. In particular, the document feature can be arranged in a machine-readable zone of the security document, in particular on the passport card side, and can thus be machine-readable.

A document feature can be a printed, a lasered, an embossed or a stamped document feature.
The spatial position of an image feature or document feature can denote a position and / or orientation of the feature in or in relation to the corresponding coordinate system.

Furthermore, a format of the untrimmed security document can also be determined based on images.

Furthermore, depending on the document-related spatial position of the protruding section, a document-related spatial position of at least one document feature of the security document (not shown) is determined.

The spatial position of a document feature, not shown, relative to the protruding section can be previously known. In particular, the spatial position of a document feature (not shown) can be known in the coordinate system fixed to the projection section. Since the document-related spatial position of the protruding section, in particular a coordinate system of the protruding section, is known, the document-related spatial position of the document feature not shown can also be determined.

The document feature, not shown, designates a document feature which cannot be imaged in the image by means of the image generation device and thus cannot be detected in the image. A document feature that cannot be mapped can thus can also be referred to as an invisible or hidden document feature, in particular a document feature that is not visible or hidden when the security document is closed.

A document feature that is not shown can in particular be a feature that is arranged in or on one side of the book block part. The document feature, not shown, is preferably a document feature which is arranged in or on the protrusion layer, but not in the region of the protrusion section.

Furthermore, a circumcision trajectory is determined depending on the document-related spatial position of the document feature of the security document (not shown).

The image-based determination of the spatial position can include the detection of image features and the determination of their properties. Image features can e.g. structures shown, e.g. also margins or marginal areas, and illustrated graphic elements of the security document or the protruding section. In particular, image features can correspond to document features shown. For example, so-called landmarks can be detected. Image-based features can be evaluated using methods of image processing known to those skilled in the art.

The image-based determination of the spatial position of image features can take place in an image coordinate system, the spatial position of the corresponding document features being able to be determined by a transformation from the image coordinate system into a reference coordinate system and / or into the document-fixed coordinate system of the uncircumcised security document. The transformation can be known or can be determined. In particular, the transformation can be determined by an appropriate calibration. In other words, a spatial position of a document feature in the document-fixed coordinate system can be determined as a function of a spatial position of the image feature in the image coordinate system.

Depending on the image-based determination of the document-related spatial position of a document feature, at least one, but preferably several, Format criteria / format criteria are evaluated. For example, it can be determined whether a document-related spatial position of a document feature does not deviate from a target spatial position by more than a predetermined amount. For example, it can be evaluated whether the certain distance from at least one edge of the security document does not deviate more than a predetermined amount from a desired target distance.

Furthermore, the circumcision trajectory can then be set in such a way that at least one format criterion or all format criteria are met or the fulfillment of a format criterion is improved. Is e.g. If the distance of a document feature from an edge is greater than a maximum permissible target distance, the trimming trajectory along this edge can be selected such that the distance after trimming is less than or equal to this maximum target distance.

If there are several format criteria that would produce mutually different pruning trajectories, the pruning trajectory can be determined in such a way that all or the greatest possible number of format criteria is / are met. Alternatively or cumulatively, the various format criteria can be weighted. In this case, the circumcision trajectory can be determined in such a way that the largest possible number of high-weight format criteria is met.

The security document is then cropped along the circumcision trajectory. The pruning trajectory can also be referred to as the cutting line. The circumcision trajectory can be determined, for example, in the document-fixed coordinate system of the uncircumcised security document. This can of course be converted into a coordinate system of a corresponding cutting device.

The circumcision trajectory can in particular comprise one or more straight sections. The circumcision trajectory preferably also comprises at least one or more curved sections, in particular circular-arc sections. These circular arc-shaped sections can have a predetermined radius, in particular a radius from the range from 1 mm to 5 mm, preferably from a range from 2.5 mm to 4 mm.

The circumcision can be carried out continuously in time and / or space along the circumcision trajectory. This can mean that the circumcision is carried out continuously along the circumcision trajectory in terms of time and / or space. However, this is not mandatory.

The security document in oversize can in particular have a rectangular cross section. The trimmed security document can also have a rectangular cross section. In the trimmed state, the security document preferably has a rectangular cross section with rounded corners.

The trimming is preferably carried out by punching. Single-sided trimming or multi-sided trimming, in particular three- or four-sided trimming, can be carried out in one punching process.

The image-based determination of the circumcision trajectory advantageously results in a document-specific and flexible setting of the circumcision trajectory, which in turn reduces the amount of rejects after trimming.

In a further embodiment, a document-related spatial position of an imaged document feature of the protruding section and a circumcision trajectory are determined based on the document-related spatial position of the imaged document feature of the protruding section.

The document feature shown designates a document feature which can be mapped into the image by means of the image generation device and thus can be detected therein. An imageable document feature can thus also be referred to as a visible or not hidden document feature, in particular a document feature that is visible or not hidden when the security document is closed.

In this embodiment, the image-based determination of the document-related spatial position of the protruding section is not absolutely necessary. However, also in In this embodiment, a document-related spatial position of the protruding section is determined image-based, a document-related spatial position of at least one depicted document feature of the protruding section and a circumcision trajectory depending on the document-related spatial position of the depicted document feature of the protruding section being determined as a function of the document-related spatial position of the protruding section.

In a further embodiment, the circumcision trajectory is determined such that a document-related spatial position of a document feature in the trimmed state of the security document does not deviate from a desired spatial position by more than a predetermined amount.

In particular, the circumcision trajectory can be determined in such a way that a document-related spatial position of an unimaginable document feature in the trimmed state of the security document no longer deviates from a desired spatial position by a predetermined amount.

The document-related spatial position in the trimmed state can be determined mathematically depending on the spatial position of the circumcision trajectory, the circumcision trajectory specifying the spatial position of the edges of the trimmed security document. It is e.g. It is possible to determine a spatial position of the document-fixed coordinate system of the cropped security document depending on the circumcision trajectory. The spatial position of the document-fixed coordinate system of the cropped security document can in particular designate a position of the origin and an orientation of the axes of this coordinate system. For example, an origin can be at a corner or in a geometric center of the cropped security document. In addition, axes can be oriented parallel to the edges of the trimmed security document. A relative space position can also be determined depending on the circumcision trajectory.

This advantageously results in a waste in the production of security documents being reduced.

In a further embodiment, the document-related spatial position of the protruding section and / or the document-related spatial position of the at least one document feature of the security document (not shown) is determined as a function of at least one reproducible document feature of the protruding position. The mappable feature can in particular be arranged on the protruding section.

In particular, the protruding section of the protruding layer can have at least one optical landmark, the optical landmark forming the feature that can be reproduced. An optical landmark can be a sign that can be easily, quickly and reliably detected in an image. For example, An optical landmark can be or include a registration mark, a line, a square, a circular element, a 2D or 3D barcode, a target element, two squares that are adjacent to each other at a corner, or a die cut. The optical landmark can be lasered, printed or punched.

The protruding section of the protruding layer can also have an identification feature which enables the security document to be identified. Such an identification feature can be designed, for example, in the form of a bar code. The identification feature can also form an optical landmark.

The at least one optical landmark and / or the identification feature can, for example, be arranged on, in or on the protrusion layer during the production of the protrusion layer.

A relative position and / or orientation of document features not shown to the at least one optical landmark can be known. In particular, the protruding layer can have been produced in such a way that the relative layers and / or orientation lie in a predetermined range.

Since the non-reproducible document features, in particular document features of the protruding position, cannot be detected optically, in particular camera-based, in the closed state of the book-like security document, the optical detection of the at least one optical landmark thus enables the document-related spatial position of the feature not shown to be determined.

For example, a document feature that cannot be mapped can be a signature area. A spatial position of the signature area relative to that
Mappable feature of the protruding layer can be known. The document-related spatial position of the signature area can then be determined by the optical detection of this feature, even if the signature area cannot be detected optically directly.

In the case explained above, the circumcision trajectory can then be determined such that the e.g. Signature area arranged in the interior of the security document has a desired distance from the edge of the trimmed security document.

In a further embodiment, the protrusion layer has a protrusion section which extends along the entire length of at least one side edge of the protrusion layer or the untrimmed security document. This advantageously results in the protrusion layer being easy to produce.

Alternatively, the overlay layer has at least one overhang section that extends only along part of the entire length of at least one side edge of the overlay layer or the untrimmed security document. In this case, the protrusion layer can also have a plurality of protrusion sections, each of which only extends along part of the entire length of the side edge. These protruding sections can be spaced apart from one another along the side edge. This advantageously results in a material-saving provision of the protruding layer.

In a further embodiment, the trimming trajectory is determined such that a format of the security document in the trimmed state does not deviate from a desired format by more than a predetermined amount. This can mean that a length and / or width and / or height of the trimmed security document does not deviate more than a predetermined amount from a target length or target width or target height. This can be a format criterion.

Alternatively or cumulatively, the circumcision trajectory is determined in such a way that a document-related spatial position of at least one reproducible document feature in the trimmed state of the security document no longer deviates from a desired spatial position by a predetermined amount. The reproducible document feature can in particular be arranged outside the protruding section. For example, the pruning trajectory can be determined in such a way that a relative position between at least one edge of the trimmed security document and at least one reproducible document feature does not deviate from a desired relative position by more than a predetermined amount.

This advantageously results in a further reduction in rejects.

In a further embodiment, the trimming is carried out by milling. For this purpose, the cutting device can be designed as a milling device. This advantageously enables simple maintenance or a simple change of the cutting device, since, for example, only one milling head has to be replaced. The replacement can be automated.

Alternatively, trimming can be done by grinding. For this purpose, the trimming can be carried out using a grinding device. For this purpose, the cutting device can be designed as a grinding device.

Alternatively, the trimming can be performed by fluid jet cutting, in particular water jet cutting. In this case, the trimming can be performed by a fluid jet cutter. This can comprise at least one nozzle head and fluidic connection elements. Furthermore, this device can comprise a pressure generating device which provides a desired fluid pressure in order to press the fluid out of the nozzle and to provide the corresponding cutting jet. The pressure generating device can of course supply several nozzle heads.

Another alternative is the cutting by punching. In this case, the trimming can be carried out by a punching device. This has already been explained above.

Overall, a cutting device that saves installation space and is easy to maintain results in an advantageous manner.

It is possible that the cutting device can be moved by a corresponding positioning device, for example a so-called XY actuator or an XYZ actuator. In this case, the security document can be arranged in a fixed format in oversize, ie the material to be cut. Alternatively, the at least one cutting device can be arranged in a stationary manner, the security document in oversize format being able to be moved by a corresponding positioning device. Further alternatively, both the security document in oversize and the at least one cutting device can be moved by corresponding positioning devices.

The at least one positioning device can therefore move the cutting device and / or the security document in oversize, in particular with a translational movement. Alternatively or cumulatively, a rotational movement can also be possible.

In a further embodiment, a document-related spatial position of the circumcision trajectory can be determined. The spatial position can be given in a document-fixed coordinate system in particular. The spatial position can denote a position and / or orientation of the circumcision trajectory. The spatial position of the circumcision trajectory can be given, for example, by the position of a point or selected points or all points of the circumcision trajectory.

An orientation of straight sections of the circumcision trajectory can also be set. The orientation can also be given in the document-fixed coordinate system.

Alternatively or cumulatively, a form of the circumcision trajectory can be determined. The shape can in particular be set such that the circumcision trajectory has a desired course. For example, the shape can be determined such that the circumcision trajectory has one or more straight sections. Furthermore, the shape of the circumcision trajectory can be determined such that it additionally has one or more curved, in particular part-circular, Has sections. In particular, two straight sections can each be connected by a curved section.

In a book-like security document, the pruning trajectory preferably includes three straight and two curved sections, one curved section connecting two of the straight sections. In this case, the spatial position can be determined for each straight section. The shape of the circumcision trajectory, namely as a straight line, can also be determined for each straight section. The spatial position and the shape can also be determined for each of the curved sections.

The spatial position and / or shape can preferably be determined independently of one another for a plurality of sections of the circumcision trajectory. This means that the spatial position and / or shape of a section has no effect on the spatial position and / or the shape of another section.

Furthermore, the trimming along the sections can be carried out for each section independently of the other sections.

The spatial position and / or the shape of the circumcision trajectory or its sections can be set for each document in a document-specific manner. This means that the circumcision trajectory can be set independently of each other for each document, in particular for security documents that follow one another immediately in the manufacturing process and are to be trimmed.

The determination of the document-related spatial position and / or the shape of different sections of the pruning trajectory is possible in particular if the pruning is carried out by milling, grinding or fluid jet cutting.

It can thus advantageously result that a trimming can be set for each section of the security document to be trimmed in a section-specific manner. Due to the trimming of previous process steps in the production of the security document, undesired deviations in the relative positions and / or orientations of features or components of the security document can occur. These undesirable deviations can differ from security document to security document. For example, in the case of a first security document, a graphic element arranged on the front side, for example an embossing, cannot be arranged at desired distances from the edges, in particular off-center. In the case of a further security document, the graphic element can be arranged on the front side at desired distances from the edges, that is to say for example in the center, but a further feature has an undesirable deviation from a desired position. For example, a graphic element of an inside, in particular a passport card, may have an undesirable distance from the edges of this inside. In both cases, the document-specific determination of the circumcision trajectory, in particular of sections of the circumcision trajectory, enables a trimming to be carried out in such a way that a desired position of the features or graphic elements can be ensured in each case. A waste quantity can thus be reduced in an advantageous manner.

In a further embodiment, the security document and / or the at least one cutting device are moved in order to carry out the trimming. This can be done by one or more positioning devices. This has been explained previously. This advantageously results in a reliable and accurate implementation of the circumcision in time and space along the circumcision trajectory.

An embodiment is further described, the circumcision trajectory having at least one part-circular section. This has already been explained above. As a result, requirements for producing the security document can be met in an advantageous manner.

An embodiment is further described, wherein the security document is provided as a book-like security document. In particular, the book-like security document is provided in a closed state in oversize.

A device for producing a security document is also proposed. The device can be used to carry out a method for producing the security document in accordance with one of the embodiments described in this disclosure. The proposed device is thus designed such that such a method can be carried out by means of the device.

The device comprises at least one cutting device and at least one holding device for the security document. The security document can be arranged on, on or in the holding device. Furthermore, the device comprises at least one device for image acquisition and at least one evaluation device. The device for image acquisition and the at least one evaluation device can be connected in terms of signals and / or data technology.

The cutting device is also movable. Alternatively or cumulatively, the at least one holding device can be moved. For this purpose, the device can comprise at least one positioning device for movement.

In particular, the security document can be trimmed in at least one edge region by means of the cutting device, the trimming taking place along a trimming trajectory.

According to the invention, at least one image of at least one protrusion section of an protrusion layer of the security document can be generated by means of the device for image capture. For this purpose, the security document can be provided in an oversize format with at least one protrusion layer.

Furthermore, a document-related spatial position of the protruding section can be determined image-based, in particular by the evaluation device.

Furthermore, depending on the document-related spatial position of the protruding section, a document-related spatial position of at least one document feature of the security document not shown and a circumcision trajectory depending on the document-related spatial position of the document feature of the security document not shown can be determined, in particular by the evaluation device.

Furthermore, the security document can be trimmed along the trimming trajectory by means of the cutting device. Furthermore, the device can have at least one Include control device for controlling the movement of the cutting device and / or the holding device. Depending on the trimming trajectory, the control device explained above can then control the positioning device (s) of the cutting device and / or the holding device in such a way that the cutting device is moved along the trimming trajectory and / or performs the trimming.

This advantageously results in a device for document-specific and flexible trimming of a security document in oversize, whereby a reject quantity can be reduced in the production of security documents.

In a further embodiment, a document-related spatial position of an imaged document feature of the protruding section and a circumcision trajectory depending on the document-related spatial position of the imaged document feature of the protruding section can be determined, in particular by the evaluation device.

In a further embodiment, the holding device for the security document comprises a first and a further holding plate, the security document being able to be arranged between the first and the further holding plate. In particular, the security document can be clamped between the first and the further holding plate.

Furthermore, the first and / or the further holding plate has a trimming slot. The trimming slot can designate an, in particular elongated, through opening in the respective holding plate. A dimension of the circumcision slot can in particular be selected such that circumcision trajectories with a number of different spatial positions and / or different shapes can be used for circumcision.

Alternatively, the first and / or the further holding plate has a sub-format. This means that the first and the further holding plate are formed in at least one, two or all dimensions smaller than the corresponding dimension of the security document in the trimmed state or in the oversize format.

This advantageously results in a stable arrangement of the security document during the trimming process, wherein either a cutting device or the holding plates or both the cutting device and the holding plates can be moved in the trimming process.

Fig. 1

eine schematische Draufsicht auf ein Sicherheitsdokument,

Fig. 2

ein schematisches Blockschaltbild einer erfindungsgemäßen Vorrichtung,

Fig. 3

ein schematisches Flussdiagramm eines erfindungsgemäßen Verfahrens und

Fig. 4

eine schematische perspektivische Ansicht einer erfindungsgemäßen Vorrichtung in einer weiteren Ausführungsform.

The invention is explained in more detail using an exemplary embodiment. The figures show:

Fig. 1

a schematic plan view of a security document,

Fig. 2

2 shows a schematic block diagram of a device according to the invention,

Fig. 3

a schematic flow diagram of a method according to the invention and

Fig. 4

a schematic perspective view of a device according to the invention in a further embodiment.

In the following, the same reference symbols denote elements with the same or similar technical features.

Fig. 1 shows a schematic top view of a security document 1, which can be a book-like security document 1. Security document 1 has an oversize. The untrimmed security document 1 in oversize is shown by solid lines. The security document 1 to be produced in the trimmed format, which can be, for example, an ID3 format, is represented by a dashed line.

The security document 1 in oversize has a first longitudinal edge 2a, which forms a spine. Security document 1 is shown in the closed state. Furthermore, the security document 1 in oversize has a further longitudinal edge 2b, a first transverse edge 3a and a further transverse edge 3b. The distance between the edges 2a, 2b, 3a, 3b and the corresponding edges in the end format can also be referred to as an overhang or bleed allowance of the security document 1 in the oversize format.

It is further shown that the security document 1 has a graphic element 5 on a front side 4, which e.g. can be designed as gold stamping.

It is also shown that the security document 1 has an overlap layer 6 in oversize, an overlap section 7 of the overlap layer 6 having optically detectable landmarks 8. The protruding layer 6 here designates a page or double page of a book block, not shown, which is covered by the book cover in the closed state.

The overlap layer 6 can be designed, for example, as a laminated passport card made of plastic, which, in addition to the optically detectable landmarks 8, has a passport picture which cannot be optically detected in the closed state, a signature area 19 which is also not optically detectable and shown in dotted lines, and further (graphic) elements and security features. A person authorized to keep the security document can provide their signature in the signature area 19.

The signature area 19 is a document feature of the security document that cannot be imaged. This means that the signature area 19 cannot be captured by the image capture device 9.

In the closed state, the protruding section 7 of the protruding layer 6 projects beyond a side edge, in this case beyond the first transverse edge 3a, of the security document 1 in oversize or the cover part in oversize. It is shown that the protruding section 7 protrudes over the entire length of the first transverse edge 3a.

Thus, in the closed state of the security document 1, the optically detectable landmarks 8 are in oversize by an image capture device 9 (see Fig. 2 ) detectable.

In Fig. 1 it is shown that the optically detectable landmarks 8 have two squares of the same size and with edges running parallel to one another, the squares intersecting at exactly one corner, this intersection point being able to be referred to as the reference point of the optical landmark 8. The optical Landmarks 8 are mappable document features or mappable features of the protruding section 7.

The signature area 19 has a previously known spatial position, in particular a predetermined distance and a predetermined orientation, relative to the spatial position of the optical landmarks 8. This relative space position can be known, for example, on the basis of production parameters of the overhang layer 6.

For example, a connecting line between the reference points of the optical landmarks 8 can be determined. The relative space position can then be the distance between a reference point of the signature area 19, for example a corner point or the geometric center, to a reference point of the connecting line, for example a center point, and as an angle between the connecting line and a reference line of the signature area 19, for example a side edge of the signature area 19, be determined.

Other document features of the security document 1, which do not necessarily have to be features of the protrusion layer 6, can also have a correspondingly known relative space position to the optical landmarks 8.

Furthermore, a document-related spatial position of the projecting section 7 is determined on the basis of an image.

A position and orientation of the connecting line in a document-fixed coordinate system of the untrimmed security document 1 can be determined, for example, as the document-related spatial position of the protruding section 7. Such a document-fixed coordinate system is exemplified by a longitudinal axis x and a transverse axis y, with arrows symbolizing a longitudinal direction and a transverse direction. The document-fixed coordinate system can have an origin, which is arranged in a geometric center of the security document 1 in oversize. A position of the optically detectable landmarks 8 in the document-fixed coordinate system can thus be determined.

However, a distance of a reference point of the connecting line, for example one, can also be used as the document-related spatial position of the protruding section 7 Center, from the first longitudinal edge 2a and an angle between the connecting line and the longitudinal edge 2a are determined.

Depending on this document-related spatial position of the protruding section 7, a document-related spatial position of the signature area 19 can then also be determined.

This in turn makes it possible to determine a position and orientation of the explained further features and security features of the protruding layer 6, which cannot be detected optically in the closed state, in the document-fixed coordinate system.

Furthermore, the circumcision trajectory 11 can be determined as a function of the document-related spatial position of the signature area 19. For example, the circumcision trajectory 11 can be determined such that the distance from a reference point of the signature area 19, for example a corner point or the geometric center, to the second longitudinal edge 2b of the security document 1 cropped along the specific circumcision trajectory 11 lies in a desired distance range and an angle between one The reference line of the signature area 19, for example a side edge, and the second longitudinal edge 2b of the security document cropped along the specific circumcision trajectory 11 lies in a desired angular range.

A document-related spatial position of the optical landmarks 8 can also be determined on the basis of an image. This has been explained previously. Furthermore, the circumcision trajectory 11 can be determined as a function of the document-related spatial position of the optical landmarks 8.

For example, the circumcision trajectory 11 can be determined such that an angle between the first transverse edge 3a of the security document 1 cropped along the determined circumcision trajectory 11 and the connecting line lies in a desired angular range. The circumcision trajectory 11 can also be determined in such a way that a distance between the first transverse edge 3a of the along the determined circumcision trajectory 11 cropped security document and the connecting line lies in a desired distance range.

Furthermore, a document-related spatial position of the graphic element 5 can be determined on the basis of an image. For example, a distance of a reference point of the graphic element, for example a corner point or of the geometric center, to the first longitudinal edge 2a and an angle between the first longitudinal edge and a reference line of the graphic element 5, for example a side edge, can be determined as the document-related spatial position. Furthermore, the circumcision trajectory 11 can be determined as a function of the document-related spatial position of the graphic element 5.

For example, the clipping trajectory 11 can be determined such that the distance between the reference point of the graphic element 5 and the first longitudinal edge 2a of the security document 1 cropped along the clipping trajectory 11 lies in a predetermined distance range and an angle between the first longitudinal edge 2a and the reference line of the graphic element 5 of the security document 1 cropped along the circumcision trajectory lies in a predetermined angular range.

Furthermore, the circumcision trajectory 11 can be determined in such a way that the security document cropped along the circumcision trajectory 11 has a desired format.

The security document is also trimmed along the circumcision trajectory 11 determined in this way.

To determine the circumcision trajectory 11, this can be done in Fig. 1 Security document 1 shown by means of an image capture device 9 (see Fig. 2 ) can be optically recorded. A control and evaluation device 10 (see Fig. 2 ) can then carry out an image-based detection of the document features, in particular the optical landmarks 8 and the graphic element 5, as well as the determination of the document-related spatial positions. The circumcision trajectory 11 can then be determined as a function of these spatial positions, the circumcision trajectory 11 defining the edges of the cropped security document 1. The trimming trajectory 11 can in particular comprise three rectilinear sections 12a, 12b, 12c, a first straight section 12a and a second straight section 12b being connected by a first curved section 13a. The second straight section 12b and a third straight section 12c are connected by a second curved section 13b. The curved sections 13a, 13b can have a predetermined radius.

The trimming trajectory 11 designates a trajectory along which the security document is trimmed. For example, the security document 1 and a cutting device 18 can be moved relative to one another in order to carry out the trimming along the trimming trajectory 11.

In particular, a document-related spatial position of the circumcision trajectory 11 can be determined. For example, A spatial position of the circumcision trajectory 11 can be determined in the document-fixed coordinate system. The document-related spatial position can in particular designate a document-related spatial position of the sections 12a, 12b, 12c, 13a, 13b. In this way, a document-related spatial position of the straight sections 12a, 12b, 12c as the position of the end points and an orientation of the straight line between the end points can be determined. A document-related spatial position of the curved sections 13a, 13b can be determined as a position of the center and the position of the end points of the curved section 13a, 13b.

In Fig. 2 A schematic block diagram of a device 14 according to the invention for producing a security document 1 is shown. The device 14 comprises an image capture device 9, a control and evaluation device 10 and a cutting device 18. Furthermore, the device 14 comprises a holding device 15 for the security document 1. In Fig. 2 it is shown that the holding device 15 comprises a first holding plate 16a and a further holding plate 16b, which have a sub-format compared to the security document 1, the security document 1 being clamped between the first and the further holding plate 16a, 16b.

Before the circumcision, an image of the security document 1 is generated in the closed state by means of the image capture device 9. For that it can Security document 1 can be arranged in a detection area 17 of the image detection device 9. This can be done by means of a transport device, not shown. The security document 1 can also be transported from the detection area to the holding device 15 by means of this transport device.

An image of the security document 1 is thus generated by means of the image capturing device 9 and is then evaluated by means of the control and evaluation device 10. The above-described determination of the circumcision trajectory 11 can be carried out here.

Depending on the trimming trajectory 11 or the properties of the trimming trajectory 11, the control and evaluation device 10 can control the cutting device 18. In the in Fig. 2 In the exemplary embodiment shown, the cutting device 18 is movable, for example along three spatial directions of a Cartesian coordinate system. The security document 1 is arranged in a stationary manner during the trimming process.

The cutting device 18 can be moved in such a way that it is moved along the trimming trajectory 11. The trimming is carried out by moving the at least one cutting device along the complete trimming trajectory 11. The circumcision is carried out continuously in terms of time and space along this circumcision trajectory 11.

The cutting device 18 can be designed, for example, as a water jet cutting device. Alternatively, the cutting device 18 can be designed as a milling or grinding device.

Fig. 3 shows a schematic flow diagram of a method according to the invention. In a first step S1, a security document 1 is provided in oversize and with an overlap layer 6 (see Fig. 1 ).

In a second step S2, the security document 1 is arranged in oversize in a detection area 17 of an image detection device 9 (see Fig. 2 ). Here, an image, in particular a two-dimensional image, of a security document 1 with the protruding section 7 is generated.

In a third step S3, the above-described image-based determination of the circumcision trajectory 11 takes place. In particular, a document-related spatial position and shape of the circumcision trajectory 11 are determined.

In a fourth step S4, the security document 1 becomes a holding device 15 (see Fig. 2 ) transported and arranged in a stationary manner by means of the holding device 15.

In a fifth step S5, the trimming is carried out by a cutting device 18.

In Fig. 4 A schematic block diagram of a device 14 according to the invention for producing a security document 1 is shown. This is similar to that in Fig. 2 shown device 14 is formed, therefore the corresponding explanations for the in Fig. 2 illustrated embodiment referenced.

Unlike the one in Fig. 2 In the illustrated embodiment, the cutting device 18 comprises a three-sided punch knife 20 and a drive device 21 with which the three-sided punch knife 20 can be moved in three spatial directions. Thus, the three-sided punch knife 20 can be moved parallel to a surface of the security document 1 and perpendicular to this surface.

It is also shown that at least the further holding plate 16b has an oversize in relation to the security document 1. The further holding plate 16 can have through-slots (not shown) which allow the three-sided punching knife 20 to pass through when the security document 1 is punched.

Of course, it is also possible for the first holding plate 16a to have an oversize in relation to the security document 1 and also for through-slots which allow the three-sided punch knife 20 to pass through.

LIST OF REFERENCE NUMBERS

1

The security document

2a

first longitudinal margin

2 B

second longitudinal margin

3a

first transverse margin

3b

second cross border

4

front

5

graphic element

6

Supernatant location

7

Protrusion section of the protrusion layer

8th

optically detectable feature

9

Image capture device

10

Control and evaluation device

11

Beschneidungstrajektorie

12a

straight section

12b

second straight section

12c

third straight section

13a

first curved section

13b

second curved section

14

contraption

15

holder

16a

first holding plate

16b

second holding plate

17

detection range

18

cutter

19

Signature area

20

Three-way punching knife

21

positioning

S1

first step

S2

second step

S3

Third step

S4

fourth step

S5

fifth step

Claims (12)

1. Method for producing a security document (1), wherein the security document (1) is prepared in an oversize format, wherein the security document (1) is provided with at least one projecting layer (6), wherein at least one image of at least one projecting section (7) of the projecting layer (6) is produced, wherein a document-related spatial position of the projecting section (7) is determined in an image-based manner, wherein, as a dependency of the document-related spatial position of the projecting section (7), a document-related spatial position of at least one non-imaged document feature of the security document (1) and a cutting trajectory (11) as a dependency of the document-related spatial position of the non-imaged document feature of the security document (1) is determined, wherein the security document (1) is cut along the cutting trajectory (11).
2. Method according to claim 1, characterised in that, in an image-based manner, a document-related spatial position of an imaged document feature of the projecting section (7) and a cutting trajectory (11) as a dependency of the document-related spatial position of the imaged document feature of the projecting section (7) is determined.
3. Method according to claim 1 or 2, characterised in that the cutting trajectory (11) is determined in such a way that a document-related spatial position of a document feature in the cut state of the security document (1) does not deviate by more than a predetermined amount from a desired spatial position.
4. Method according to any one of claims 1 to 3, characterised in that the document-related spatial position of the projecting section and/or the document-related spatial position of the at least one non-imaged document feature is determined as a dependency of at least one image-representable feature of the projecting layer.
5. Method according to any one of claims 1 to 4, characterised in that the projecting layer (6) comprises a projecting section (7), which extends along the entire length of at least one side edge of the projecting layer, or that the projecting layer comprises at least one projecting section, which extends only along a part of the entire length of at least one side edge of the projecting layer.
6. Method according to any one of claims 1 to 5, characterised in that the cutting trajectory (11) is determined in such a way that a format of the security document (1) in the cut state does not deviate by more than a predetermined amount from a desired format, and/or a document-related spatial position of at least one image-representable document feature, in the cut state of the security document (1) does not deviate by more than a predetermined amount from a desired spatial position.
7. Method according to any one of claims 1 to 6, characterised in that the cutting is carried out by milling, grinding, fluid-jet cutting, or punching.
8. Method according to any one of claims 1 to 7, characterised in that a document-related spatial position and/or form of the cutting trajectory (11) can be determined.
9. Method according to any one of the preceding claims, characterised in that, before or in order to carry out the cutting, the security document (1) and/or at least one cutting device (18) are moved.
10. Device for producing a security document, wherein the device (14) comprises at least one cutting device (18), at least one holding device (15) for the security document (1), at least one device (9) for image detecting, and at least one evaluation unit (10), wherein the cutting device (18) and/or the at least one holding device (15) are movable,
    characterised in that
    by means of the device (9) for image detecting, at least one image of at least one projecting section (7) of a projecting layer (6) of the security document (1) can be produced, wherein, based on the image, a document-related spatial position of the projecting section (7) can be determined, wherein, as a dependency of the document-related spatial position of the projecting section (7), a document-related spatial position of at least one non-imaged document feature of the security document (1), and a cutting trajectory as a dependency of the document-related spatial position of the non-imaged document feature (11) can be determined, wherein the security document (1) can be cut by means of the cutting device (18) along the cutting trajectory (11).
11. Device according to claim 10, characterised in that, based on an image, a document-related spatial position of an imaged document feature of the projecting section (7) and a cutting trajectory (11) as a dependency of the document-related spatial position of the imaged document feature of the projecting section (7) can be determined.
12. Device according to claim 10 or 11, characterised in that the holding device (15) for the security document comprises a first and a further holding plate (16a, 16b), wherein the security document (1) can be arranged between the first and further holding plate (16a, 16b), wherein the first and/or the further holding plate (16a, 16b) comprises a cutting slot, or wherein the first and/or the further holding plate (16a, 16b) exhibits an undersize format.

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