Device for checking validity marks on valueable and protected documents

FIELD: technologies for validating documents, etc.

SUBSTANCE: device has detector with electrodes, detector and signals processing device, during check an alternating electric field is formed, which excites electro-luminescent radiation. One detector detects electro-luminescent signal of validity mark and transforms it to electrical signal, one electrode is made flat or in form of electro-conductive covering of pressing roller, another - in form of electro-conductive film of pressing roller, or one electrode is made plated of transparent electro-conductive material or in form of round electrode in form of one or several wires, and other one - in form of electrode head.

EFFECT: higher efficiency.

3 cl, 12 dwg

 

The subject of this invention is a device for checking the authenticity of securities and security documents, in particular banknotes, which are in the mode fed from the stack pass through the testing machine, while the detector device detects a sign of authenticity and sends a signal to the device signal processing.

Specified at the beginning of the device is known, for example, from EP 0633553 B1 or EP 0477711 B1.

Both devices are so-called machines for checking banknotes, which are able within a relatively short time to check lots of notes in the continuous mode.

However, devices according to the above publications have the disadvantage that they perform image recognition, which requires time. Due to this reduced performance validation of these test machines. And it is a full recognition of the image, i.e. the recognized characters and compared with stored characters. However, this leads to the fact that during the character recognition and evaluation decreases the rate of passage of the banknote to get enough time for evaluation and decision about the authenticity and unoriginality of the banknote.

In addition, well-known character recognition is based only on the measurement of visible character is in, that no longer corresponds to the state of the art authentication of banknotes.

Therefore, the basis of the invention is the task of this enhancement device for checking the authenticity of the documents specified in the beginning of the type that at much higher speeds the passage can be evaluated and processed with good quality also invisible signs of authenticity.

This task is solved according to the invention, with the assistance of the technical features item 1 of the claims.

The essential feature of the invention is that the testing machine has at least one detector device, which is able to measure and assess the electroluminescent properties of authenticity.

From my own application of the applicant is known to supply banknotes electroluminescent properties. However, to date, unknown intake assessment of such evidence of the authenticity in the testing machine with high speed processing.

Therefore, in a preferred embodiment of the invention provides that the detector device comprises at least two opposing electrodes, between which move verifiable protected and valuable documents, and there is at least one detector that detects the electrical signal is luminescence sign of authenticity and converts it into an electric signal.

The term "electroluminescence" refers to all phosphorescent and fluorescent elements, which under the influence of an alternating magnetic field creates a corresponding fluorescent signal. It is not necessary that the signal was in the visible range. He can be in the infrared and in the ultraviolet range; however, it can also be in the visible range. Provided also that this fluorescent signal is in the visible and invisible ranges, and that the corresponding detector device of this signal detects and estimates.

To create alternating electromagnetic fields with frequencies up to several megahertz need to be checked secured or valuable document in the place to be checking the authentication passed this electromagnetic alternating field. This provides for the supply of the electromagnetic alternating field on the protected and valuable document. The feed is preferably a capacitive manner, i.e. protected and valuable document is passed through a gap between two opposite electrodes, and the electrodes are connected with the corresponding pole of the source signal to generate an electromagnetic alternating field.

To ensure better collaboration the Oia electromagnetic alternating field is protected and valuable document should preferably minimize the air gap between the electrodes and valuable and protected document. For this purpose, preferably at least one of the electrodes under the action of the spring pressed against the protected and valuable document, so by minimizing the air gap is protected and valuable document penetrated the highest strength of the electric field.

To perform such electrodes have a few options.

First of all, it is foreseen to perform one electrode is approximately in the form of a flat electrode while the other electrode is in the form of a spring-loaded roller that is opposite the flat electrode. The spring loading may be due to the fact that the axis of this pressure roller under the action of the spring pressed in the direction of transportation of the protected and valuable document, so that this pressure roller under the action of the spring adjacent to one side of the protected and valuable document, while the other side is protected and valuable documents (banknotes) adjacent to the opposite, is planar electrode.

The emitted fluorescent signal is best detected due to the fact that the flat electrode is made transparent to the emitted fluorescent signal and that on the other side of this electrode is a detector device for detecting a fluorescent signal.

However invented is not limited to this implementation.

In modifications of the invention can be provided that both electrodes are made in the form of the respective pressure rollers, at least one of the rollers is spring-loaded in the direction of the plane of transport protected and valuable document.

In this example, execution and specified before this example, the mandatory is the fact that made as a pressure roller valikoobraznye or cylindrical electrode has a conductive coating, which is connected with one pole of the alternating field. This can be done in a simple way due to the fact that the coating of the pressure roller is electrically connected with the axis of the pressure roller and axle with electric insulation pre-loaded spring loaded clamping device. In this case, applied to the floor the signal is transmitted through the sliding contact ring on the axle and from there further to the floor.

In the third embodiment, the invention provides that there are two flat electrodes, at least one of the electrodes under the action of the spring pressed toward the other electrode for electromagnetic alternating field penetrated introduced between the electrodes bill possible without an intermediate air gap.

In this case, also for reasons of simplicity, the implementation is preferable, if at least one of the flat electrodes are made transparent to the fluorescent signal. If this fluorescent signal is at least partially located in the visible range, it is preferable to perform at least one of the electrodes of the transparent, electrically conductive material (e.g. tin oxide with indium), which can optionally be colored by the type of filter to ensure the passage of the measured fluorescent signal in a narrow band and its supply, which is situated on the other side of the transparent electrode detector.

If the emitted fluorescent signal lies in an invisible range, it is sufficient to perform at least one electrode is transparent only in the spectrum of the fluorescent signal, while in the visible range, the electrode may be opaque.

The detector device can be placed only on the specific track you want to check banknotes. You can also arrange a number of detector devices next to each other, and one detector device may correspond to two detector for evaluation of fluorescent signal. This alternative implementation has the advantage that it is estimated only a differential signal, which in this case does not depend on extraneous influences (for example, temperature changes, humidity is whirling and protected and valuable document).

Thus, the formation of different signals of the two detector devices provides increased reliability evaluation of the detected fluorescent signal.

Below is a detailed description of several embodiments of the invention represented in the drawings, the drawings and their descriptions follow other characteristics and advantages of the invention.

The figures shown:

figure 1 - testing machine, according to the invention, side view;

2 is a first embodiment of a detector device in an enlarged scale;

figure 3 is a second embodiment of a detector device in an enlarged scale;

4 is a verifiable bill and the location of the detector device, top view;

5 is a section of another variant of execution of the test machine according to the invention;

6 is modified relative to the figure 5 embodiment of;

7 is modified relative to figure 5 and 6 embodiment of the electrodes;

Fig - modified relatively Fig.7 embodiment of the electrodes;

Fig.9 - two detector for reading the notes, view from above;

figure 10 - view of the signal obtained when reading the two detectors, according to Fig.9;

11 - electrode system with finger-electrodes, top view;

Fig system 11 according to the context.

Pok is related to 1 test machine essentially consists of belt conveyor 1, which is driven in the direction of the arrow 5. While in boot shop 2 is a pile of protected and valuable documents 3, each time through the transporting rollers 6 moves in one bill and served on the belt 1 in the direction of the arrow 5 to the detector device 9.

Shows the number of conveying rollers 6 and the guide roller 7, with all the work the belt conveyor 1 is performed through a separately driven drive belt 8.

However, the invention is not limited to this. The operation of the conveyor belt 1 may be implemented directly by driving at least one of the transporting rollers 6 or the guide roller 7.

Instead of the conveyor belt 1 can be used also other longitudinal conveyors such as chain conveyor, plate conveyor, gripper actuators and many others.

In addition, also not shown, along with the verification machine can be provided by other test device, such as a test device for detection of optically visible signs of authenticity, etc.

In the area of the detector device 9 for recognition of sign of authenticity is created electroluminescent signal detected by the detector 23 and line 25 is passed to the device 10 about the abode signals, which in turn is connected to the indicator device 11.

In the exemplary embodiment according to figure 2 the detector device 9 consists of a pressure roller 14, the axis of which by means of a spring 17 is pressed in the direction of scanned banknotes 12. The floor 15 of this pressure roller is made conductive and through the conductor 20 is connected to one of the poles of the source 18 of signals.

This spring 17 rests on a stationary support 19.

The other pole of the source 18 signals through the connection conductor 21 connected to the conductive film 22, which is located on the opposite side from the protected and valuable document 12. Thus, between the cover 15 and the conductive film 22 is generated electromagnetic alternating field which passes through the protected and valuable document 12 is approximately perpendicular to its surface. Once in the area of the detector device 9 includes the electroluminescent sign 27-32 authentication (see figure 4), a fluorescent signal 24, which enters the detector 23 and creates in line 25, the signal detected by the device 10 of the signal processing and subjected to further processing.

Figure 3 shows that the detector device 23 consists of two flat, opposing conductive films 22, 26, between which are transported checked bankn is you 12 in the direction of the arrow 5. In this case, at least one of the conductive films 22, 26 can snuggle up under the action of the spring to the other conductive film.

For simplicity, the drawing shows that the detector 23 is located at a distance from the upper conductive film 22. However this is not mandatory: the detector 23 may be fixedly mounted on the corresponding conductive film 22 to ensure the shortest possible and interference-free path fluorescent signal 24.

Figure 4 schematically shows that the detector device 9, 13 can be located on only one track of the banknote 12, i.e. the width of the detector device transversely of the transport direction (direction of arrow 5) may be less than the width of the protected and valuable document 12.

You can see that along this track are different in length, and optionally also different width signs 27-32 authentication, and the sequence of these signs of authenticity during transport secure and valuable document 12 through the detector device 9, 13 creates a rhythmically changing fluorescent signal 24, which can also be used for authentication, secure and valuable document.

Needless to say, you can arrange multiple detection devices 9, 13 adjacent to each other or each other for isenau and valuable document 12, this, along with the assessment of one track can also be assessed more tracks.

In another embodiment, it is possible to briefly interrupt the transportation of protected and valuable document on the scan time. After testing, the transportation of protected and valuable document resumes.

This is shown, for example, in figures 9 and 10, in which one bill 12 read two detector 9, 9’. While the detector device 9 is designed to read tracks with signs 27-32 authentication, the second detector device 9’ is not designed for any signs of authenticity, but only reads the surface of the protected and valuable document.

The signals of both detectors 9, 9’ is schematically shown in figure 10. You can see that due to the formation of various signals between the detector device 9 and the detector device 9’, you can eliminate the interference. Such interference effects are, for example, temperature changes, unwanted light touch device (detector 23) and similar interference.

If the location of several detection devices to each other it is possible to estimate the differential signal between the signals of the first and second detector devices.

The advantage of the system according to the invention is that by evaluating the invisible signs 27-32 genuine the spine provides better authentication protected and valuable documents. Evaluation can be performed at high speed, since it is possible to refuse recognition. It is only necessary to verify that there is or no fluorescent signal in a particular zone is protected and valuable document.

Therefore, it is possible to significantly improve the processing speed of the test machine, equipped with a detector device.

Figure 5 in another example implementation shown that at least one of the electrodes may be in the form of an ITO film or a glass plate, which is formed of a plate electrode 34, which at least partially is electrically conductive and is connected electrically connecting a conductor 21 to one terminal of source 18 signals, while the other electrode is made in the form of the electrode head 35, which by means of springs 42 is pressed against one side of scanned banknotes 12.

For simplicity of the drawing between the bottom side of the plate electrode 34 and the upper side is protected and valuable document 12 shows the air gap 33. However, in the ideal case, this gap 33 should not be, because this ensures a high flux density in the area between the bottom side of the plate electrode 34 and the upper side electrode head 35. Thus, air gaps 33 interfere and therefore the need is to avoid. For this reason, there are also spring 42, which press the protected and valuable document 12 to the surface of the plate electrode 34.

When this electrode head 35 is located in the gap of the bearing plate 44, which represents the plane transporting protected and valuable document 12.

Schematically shows the electroluminescent elements 43, which in this example run is included in the material is protected and valuable document 12. However, the invention is not limited to this. Such electroluminescent elements can be deposited on the protected and valuable document 12 in the form of a coating, it is possible as one-sided and two-sided coating.

Figure 6 shows that instead of the plate electrode 34 may also be provided round the electrode 36, which in the simplest case, made in the form of conductive wires. You can see that these lines 37 fields pass through the scanned bill is relatively perpendicular to and end on the surface of the electrode head 35.

Another option run is provided with several parallel stretched wires or through the fabric of electrically conductive wires. In all these cases the execution succeeds despite the opaque material of the wires to check the electroluminescence protected and zennoh the document.

As shown in Fig.7, instead of the round electrode 36 and the electrode head 35 may be provided two opposite needle electrode 38, which create especially highly concentrated electric field with the relevant lines 37 field.

Thus protected and valuable document 12 passes through the gap between the two opposite needle electrodes 38.

On Fig shows a modification of the exemplary embodiment according to Fig. 7, which can be also provided with two oppositely lying electrode 38, which need not necessarily be made in the form of needle electrodes.

As another option, run laterally spaced electrodes can also be made in the form of comb structures. In this case, they can log into one another and the electric field induces in the protected and valuable document electroluminescent layer to glow.

In the gap 39 between the electrodes formed line 41 fields that are partially outside the investigational banknotes, which are however also partially penetrate into the material is protected and valuable document and lead included electroluminescent elements 43 to glow.

On 11 and 12 for comparison with the example of execution shown in Fig.7 and 8, shows a modified example wypolnenije this electrode system consists of calling each other like fingers of the electrodes, which form between the electrode gap (gap flux), which concentrates the magnetic field. The electrode system is located on one side of the banknote 12, and the eld lines pass through the bill. Due to this, excited included in the bill or printed on the banknote electroluminescent elements 43 and emit a fluorescent signal 24.

Not shown that the processing speed (transport speed in the direction of arrow 5) protected and valuable document can be changed. So, for example, may be provided that is protected and valuable document is drawn at high speed in the testing machine for the protected and valuable documents, however, during the study of authenticity, according to this invention, the speed of the adventures of the protected and valuable document through the detector device 9 is reduced, or that the protected and valuable document in recognizing signs of authenticity even short stops using the detector device 9 with the purpose of reception of the corresponding signal. This suggests that the transport speed is protected and valuable document 12 need not necessarily be constant.

1. Device for checking the authenticity on valuable and protected documents (12), in particular banknotes, identity documents, a layer of the same cards and the like, containing the detector device (9, 13) with electrodes(15, 22; 22, 26; 34, 35; 35, 36; 38, 38; 45, 45) and the detector (23), and also contains a device (10) signal processing, while checking electroluminescense signs of authenticity valuable and protected documents electrodes(15, 22; ... 45, 45) create an electric alternating field (37, 41)that energizes the electroluminescent radiation, which detects the detector (23) and in the form of an electrical signal electroluminescent radiation gives the device (10) signal processing, characterized in that validated valuable and protected documents (12) pass through the device in a feed mode from the stack, and that at least one of the electrodes(15, 22; ... 45, 45) under the action of the spring is pressed to the surface of the really valuable and verifiable protected document, and that the detector device (9, 13) comprises at least two opposite electrodes(15, 22; ... 38, 38), between which is formed a gap through which you want to check banknote (12), and that there is at least one detector (23), which detects the electroluminescent signal characteristic of authenticity and converts it into an electrical signal, and that one electrode (22) is made approximately flat or in the form of a conductive coating (15) pressure roller (14), and the other electrode of the issue is linen in the form of a conductive coating (15) pressure roller (14), or that, at least one electrode made in the form of a plate electrode (34) of a transparent conductive material such as tin oxide with indium, or in the form of a circular electrode (36) in the form of one or more wires, and the other electrode is made in the form of the electrode head (35).

2. The device according to claim 1, characterized in that at least one of the electrodes(15, 22, 26, 34, 35, 36, 38) is transparent to the electroluminescent signal characteristic (27-32) authentication and that the detector (23) is located near this electrode.

3. The device according to claim 1, characterized in that at least one of the electrodes (15, 22, 26) is transparent to the electroluminescent signal characteristic (27-32) authentication and that the detector (23) receives its signal through svetoprovodnoy located near this electrode.

4. Device according to any one of claims 1 to 3, characterized in that in the conveying direction there are several detection devices (9, 9’) with a shift relative to each other.

5. Device according to any one of claims 1 to 4, characterized in that the output signal is formed from the difference between the measurement signals of the two different detector devices (9, 9’).

6. Device for checking the authenticity on valuable and protected documents (12), in particular, bills, personal documents, plastic cards, etc. containing the detector mustache is a device (9, 13) with electrodes(15, 22; 22, 26; 34, 35; 35, 36; 38, 38; 45, 45) and the detector (23), and also contains a device (10) signal processing, while checking electroluminescense signs of authenticity valuable and protected documents electrodes(15, 22; ... 45, 45) create an electric alternating field (37, 41)that energizes the electroluminescent radiation, which detects the detector (23) and in the form of an electrical signal electroluminescent radiation gives the device (10) signal processing, characterized in that validated valuable and protected documents (12) pass through the device in a feed mode from the stack, and that at least one of the electrodes(15, 22; ... 45, 45) under the action of the spring is pressed to the surface of the really valuable and verifiable protected document, and that the electrodes are designed in the form of comb structures included in one another like fingers, and are on the one hand valuable and protected document.

7. The device according to claim 6, characterized in that at least one of the electrodes(15, 22, 26, 34, 35, 36, 38) is transparent to the electroluminescent signal characteristic (27-32) authentication and that the detector (23) is located near this electrode.

8. The device according to claim 6, characterized in that at least one of the electrodes (15, 22, 26) is transparent to the electroluminescent signal prize is aka (27-32) authentication and that the detector (23) receives its signal through svetoprovodnoy, situated near this electrode.

9. Device according to any one of p-8, characterized in that in the conveying direction there are several detection devices (9, 9’) with a shift relative to each other.

10. Device according to any one of p-9, characterized in that the output signal is formed from the difference between the measurement signals of the two different detector devices (9, 9’).

11. Device for checking the authenticity on valuable and protected documents (12), in particular, bills, personal documents, plastic cards, etc. containing the detector device (9, 13) with electrodes(15, 22; 22, 26; 34, 35; 35, 36; 38, 38; 45, 45) and the detector (23), and also contains a device (10) signal processing, while checking electroluminescense signs of authenticity valuable and protected documents electrodes(15, 22; ... 45, 45) create an electric alternating field (37, 41)that energizes the electroluminescent radiation, which detects the detector (23) and in the form of an electrical signal electroluminescent radiation gives the device (10) signal processing, characterized in that validated valuable and protected documents (12) pass through the device in a feed mode from the stack, and that at least one of the electrodes(15, 22; ... 45, 45) under the action of the spring pressed against the surface really check prices the CSOs and the protected document, and that two opposite to each other of the electrode made in the form of needle-shaped electrodes (38).

12. The device according to claim 11, characterized in that the detector device (9, 13) comprises at least two opposite electrodes(15, 22; 22, 26; 34, 35; 35, 36; 38, 38), between which is formed a gap through which you want to check banknote (12), and that there is at least one detector (23), which detects the electroluminescent signal characteristic of authenticity and converts it into an electric signal.

13. The device according to claim 11, characterized in that the electrodes (38, 38; 45, 45) are located on one side protected and valuable document (12).

14. Device according to any one of § § 11 to 13, characterized in that at least one of the electrodes(15, 22, 26, 34, 35, 36, 38) is transparent to the electroluminescent signal characteristic (27-32) authentication and that the detector (23) is located near this electrode.

15. Device according to any one of § § 11 to 13, characterized in that at least one of the electrodes (15, 22, 26) is transparent to the electroluminescent signal characteristic (27-32) authentication and that the detector (23) receives its signal through svetoprovodnoy located near this electrode.

16. Device according to any one of § § 11 to 15, characterized in that in the conveying direction there are several detector device is STV (9, 9’) with a shift relative to each other.

17. Device according to any one of § § 11 to 16, characterized in that the output signal is formed from the difference between the measurement signals of the two different detector devices (9, 9’).



 

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Valuable document // 2232422
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