UA73732C2 - Method for determining authenticity, nominal value, and wear and tear of bank notes; device for sorting and counting bank notes - Google Patents

Abstract

The present invention is used for sorting old or false banknotes, for determining their payment value as well as for searching and for detecting them through the production of full images of both sides of said banknotes. This invention can also be used for analysing the whole set of decay signs. The device for sorting and counting banknotes includes a control unit, a single-piece feeding unit whose supply speed is automatically adjusted according to the dimensions of the banknote, a transport system, a forwarding and counting unit, and a unit for separating the flow of banknotes and for directing them towards one of the storage baskets. The unit for determining the authenticity, the value and the decay level includes scanning devices used for producing a visible image and an infrared image, and also for producing a visible image and an induction-generated image.

Description

Description of the invention

The invention belongs to methods and devices for checking and determining the authenticity, denomination and degree 2 wear (worn) of banknotes, their numbers and sorting. The invention can be used in bank sorting devices for sorting money tickets (banknotes), determining their payability, searching and detecting worn and fake money tickets.

The device for sorting and counting banknotes is intended for automatic processing of banknotes of any type, denomination and state affiliation. The method on which the operation of the device is based consists in determining the authenticity, denomination and degree of wear of the banknote based on the complete image of both sides of the banknote obtained on scanning devices in the visible spectrum zone, infrared spectrum zone and the induced image obtained when illuminated in the ultraviolet spectrum zone , transmitted and processed in the computing unit, where the received images are compared with the reference ones with the help of a pre-installed image recognition software. 12 The device automatically sorts into a separate bin with the status "suitable" (intended for further circulation) and into a separate bin "worn out" (to be destroyed due to physical condition). Banknotes that do not correspond to the specified denomination or sample, that have violations in some type of protection, are glued together, and also that cannot be recognized are sorted into a separate bunker for further analysis by an expert. The sorting parameters (criteria) can be changed and adjusted by the user according to his requirements thanks to the interactive interface for adjusting the sorting parameters through the display and keyboard. The device keeps a record of its work, and therefore can perform accounting and control functions.

The well-known device for sorting and counting banknotes UOe Ha Kye 3700 of the company Oe Ha Kye (1), in which a method is used to determine the authenticity and denomination of banknotes, based on checking the presence of labels in specified places of banknotes using infrared and ultraviolet sensors with 29. In order to protect against forgeries, an image is applied to the banknote with so-called metameric Go) paints, this image is invisible to the naked eye and is visible only in the infrared spectrum. Knowing a specific infrared image, one can design a sensor that checks for the presence or absence of metameric ink at several specific points on the banknote's surface. This sensor is a pair: an infrared emitter and a photoreceptor that receives reflected radiation from the paper. If there is no metameric paint, the photoreceptor is illuminated by reflected light, if there is paint, the light flux on the photoreceptor decreases.

When a banknote is illuminated with ultraviolet radiation, induced visible radiation occurs. Knowing the specific induced image, it is possible to design a sensor that checks for the presence or absence of the induced image at several specific points on the surface of the banknote. This sensor is a pair: an ultraviolet emitter and a photoreceptor that receives induced radiation from the paper. If there is an induced image, the photoreceptor is illuminated by reflected light, if there is no induced image, the light flux on the photoreceptor decreases.

The disadvantage of this method is checking not the entire image, but only checking the presence or absence of an image at several points on the surface of the banknote. From 50 The degree of wear of a banknote in a known method is checked using a microphone sensor based on the noise level of a crumpled banknote, while significant signs of wear may not be noticed, such as

From" dirty spots and inscriptions.

The face value of the banknote is checked in a known way by a special sensor, which is an illuminator and many light guides that collect reflected light along several stripes of the surface of the banknote, these light guides are collected at the exit into a beam and transmit integral illumination to the photoreceptor. When passing a money ticket under the sensor on the photo receiver, different curves of integral illumination are obtained depending on the denomination. This method does not guarantee an error-free determination of the denomination of the banknote.

The well-known machine has a block for individual submission of banknotes, a transport system for feeding money and tickets to the sensors (detectors) of the node for controlling the passage and counting of banknotes, a node for determining the authenticity, denomination and wear of banknotes, there is a node for dividing the flow of banknotes for sending monetary tickets into one of the stacking nodes with a capacity depending on the decision made by the computing unit based on the data received from the sensors, three stacking nodes with capacities for stacking listed and sorted money tickets: one - for valid ones, the second - for worn ones, the third - for banknotes of doubtful authenticity and denomination. The disadvantage of the known machine is the need to rebuild and replace a set of 52 sensors when switching to another type of banknotes, for example, to banknotes of another country.

GF) Redesigning, manufacturing and setting up another system of sensors for a new type of money tickets require time, significant resources and efforts, as well as large financial costs. o The task of this invention is to develop a method for determining the authenticity, denomination and degree of wear of a banknote, based on scanning the banknote with the help of scanning devices that allow to obtain full images of both sides of the banknote in the visible spectrum zone, the infrared spectrum zone, as well as the induced image (luminescent and/or fluorescent), obtained when illuminated in the ultraviolet zone of the spectrum to achieve significant reliability with the subsequent processing of images using a computer unit, and the creation of a compact device for sorting and counting banknotes, which does not require changes in the hardware when changing the type of banknotes . because the essence of the method is that the banknote is scanned by scanning devices to obtain a complete image of both sides of the banknote in the visible zone of the spectrum, the infrared zone of the spectrum and the induced image obtained when illuminated with ultraviolet light. The obtained images of the banknote surface are transferred from the scanning devices to the computing unit, where, with the help of a software image recognition tool, they are compared with the reference ones and a decision is made about the authenticity, denomination and degree of wear of the banknote. A learnable image recognition software installed on a computing unit allows you to recognize banknote images presented to it and answer the question to what extent the entered image corresponds to the reference image. The software can determine full image matching, partial image matching, complete mismatch of 70 images, matching and mismatching of individual image fragments.

To determine the denomination and degree of wear of the banknote, the software tool compares the received image of the banknote in the visible spectrum with the reference image. If the images do not match completely, the software makes a decision that the banknote is of a different denomination, if there is a partial mismatch (stains, inscriptions, tears on the banknote, etc.), the software makes a decision about the degree of wear of the banknote. To /5 determine the authenticity of a banknote, the software tool compares the full infrared and induced image, obtained when illuminated in the ultraviolet zone of the spectrum, of the banknote with the reference ones. If the images do not match, a decision is made to doubt the authenticity of the banknote. In the event of a partial discrepancy between the images, the presence or absence of the image in the special protection zones on the banknote is checked. If the protection zones do not match, a decision is made to doubt the authenticity of the 20 money ticket.

The program allows you to analyze a complex of signs of wear and tear of a banknote: wear, stains, inscriptions, tears at the edges, bent and torn corners, holes, flat tears at the edges.

On the basis of the boundary data determined by the expert, the image of the banknote obtained in the visible spectrum, the image of the banknote in the infrared spectrum and the induced image obtained after the illumination of the banknote in the ultraviolet spectrum are analyzed, and the final rules on the identity of the banknote are established to one of three classes: suitable, worn, doubtful. and)

The sequence of actions when sorting money tickets is as follows:

Let the scanning device receive an image of a money ticket of M »x M pixels. We denote by o - (0,MIx (0,MI is В? the set of image points. At the same time, a site is mapped to each pixel (i,)): с 30 ЦЕН о бей (-1,70Не (И-1,,)) , c point (ii))) is О - the right upper corner of the pixel area.

Let о в - the set of image points belonging to the currently processed money and - ticket, ор the set of image points belonging to the standard. co

The main idea of sorting money tickets is to present the initial image of a money 3o ticket, given by the function 7 - КЕ,Н), using the set (54,02,...Zu of numerical characteristics, with the following conclusion from the final rule about the belonging of a money ticket to one of the classes: 1. suitable, 2. worn, " 3. doubtful. 40 To set such numerical characteristics, let's divide Or into a set of K-blocks (recognition regions) not) with Kik, Ka, where Kr e Ov, and - 1,...,1 are square (perhaps intersecting) B x B pixel fragments :z» of the image Оv, - in Let's also consider the set of O-blocks (areas of comparison on the standard): 04,02,.. .Ov, where O4 with 1

Or represent square (possibly intersecting) Вх В pixel fragments of Шо, - n: 1

Sh- Noise is almost always present in real images. Therefore, we will consider the image of the money oo ticket 7 - / (5,H) as the implementation of a random process of two variables, that is, as a random field, which is characterized by certain probabilistic characteristics.

We will begin the definition of statistical characteristics with the calculation of initial and central moments. In theory

For 20 probabilities, initial moments t, kth order are calculated according to the general formula - к че тк зах В where t, - some value of a discrete random variable Х, р -ХХ - х) - the probability with which the random variable Х acquires the value х ).

Mathematical statistics operates with estimates of the specified moments. With regard to the analysis of images, the formula (F. takes the form: in V

Here you are

I-1-1 because Central moments in the theory of probabilities are determined by the expression: this is - in - pr. !

For the practical application of the given formula, it is necessary to first estimate the average value of t 4. Therefore, we will use the well-known formulas to calculate the initial moments in the central: associated with the central moments, and entropy: c - Sho - root mean square deviation, this is r. - dr coefficient of asymmetry, 70 these

What - what - 3 - kurtosis coefficient, b

I--Chr; here is p; - untropy and

When analyzing the signs of wear and tear on a banknote, information about the spatial frequency plays an important role, which is defined as the rate of change in the brightness of the image elements divided by the distance over which this change takes place. Spatial frequency information allows us to use spatial filters to enhance or remove components of a certain frequency, highlight some features of the image.

In general, the process of spatial filtering can be described as follows:

Let

In art

PE p)- m Yaga m ami amo s amm o i s zo Mepie i biom (ze)

IYAH and Bk 2. Yua y- ch - Deli li oz Om | о and - the initial image and weighting function of the filter, respectively, and 1 nm ch

Byshiv Ul: ekr Zlrivya van « and avoided zhi shi and s vysh in He vh - maybe how)

M vm M ;" " - their Fourier transform. Then /' - 769 p - E(E/ (shu). En(ChM,y ) - is the result of image filtering by a filter with a weight function p.

We considered the main methods of image analysis and processing that are used in our software

Means of sorting money tickets.

Ge) The analysis of the wear and tear of a money ticket takes place in several stages in blocks K;s Or, and - 1,...p. For each block - Ks Ov, and -1,...n, some functional of the state of the area is calculated, which is determined at each stage of work, taking into account the peculiarities of the analyzed characteristic. The calculated functional takes its greatest value on the (95) reference region and decreases on less similar regions. The resulting value of the function is compared with the limit "with a value defined as the maximum percentage deviation from the value of the functional on the reference area, and a decision is made on the status of the area for this stage.

Step 1. Determination of the nominal value and degree of wear in the visible spectrum. wear is understood as a set of signs of aging of a banknote: wear, stains, inscriptions, tears at the edges, bent and torn corners, holes, flat tears at the edges. (Ф) Let 7/7 (ЕН) be the distortion of a current banknote in the visible spectrum, / Р(е,Н) be the distortion

GI of the reference banknote in the visible spectrum. First of all, the image of the standard and current banknote is divided into K and OO blocks, described above. Statistical characteristics ту,то,птз,та,Ч», Из, Ц4, с 91, 92 are calculated for each area of the benchmark and money ticket that is analyzed.

To determine the face value of a banknote, we filter the area K ;, and - 1,2... with a filter with the frequency characteristic Ru(Ш,y ) - Ex ri (1), where Er; - the Fourier transform of the region ХО;, 7" is the sign of complex conjugation. Therefore, the recorded filter is matched with the image of the information О;, which is subject to recognition, and its mutual correlation with the given image is performed. If the image contains the image we are interested in , then as a result of the correlation at the origin of the coordinates of the output plane of the system 7 '(5,H)(E,H) is K, a bright light spot will be formed, which indicates the presence of a recognized image and the location in the image that is being sought.

We will consider the function of the state of the area to be equal to c, - VC zho, and where

Ar o- (t, to, taz, ta, tso, I3, Ol, u 0949254, plo, pz, oz, 094,92, - input vector of features of the area, components pt",pt2,... - statistical characteristics of the area after filtering, m/; - empirically obtained weights of input features.

When determining the denomination of a banknote, we will take into account that the correspondence of the image consists of 70 general (integral) similarity of the entire banknote and the presence / absence of a picture in the controlled areas.

To evaluate the integral correspondence, we consider the state function of the money ticket to be equal to p

Fa, 1-1 de

F- My z, heh! Drink to sleep

If for a given threshold F'leh Fo» fah - then a compliance check is carried out in the controlled areas, otherwise the denomination of the money ticket does not correspond to the given one, the money ticket acquires the property of doubtful.

To evaluate the correspondence in the controlled areas, we introduce an additional binary vector | (0,1), and - 1,...0, where ИИ, 5 1 - for controlled zones, И/-0 - for the rest. If n by - the denomination does not match

Ф- Tsi c) In c. i. Otherwise, the money ticket is considered doubtful.

To determine the degree of wear and tear, we will consider the function of the state of the money ticket to be equal

GP

F B- re 'se shchi

If for the given threshold F'Yah, f « flah, then the money ticket is considered worn. at

To detect spots, change (1) as follows: h-

Ed(ch,y ) - A(c,y ). Erizh, where A(ts,y ) is the frequency characteristic of the low-pass filter. We will take the state function as in determining the integral correspondence of denominations. Shk p. Oud, and - 1-1

My z, hih « " Drink s «o spah | -

If for a given threshold fF'yah, f « fah, then the permissible spot area exceeds the threshold. c To detect inscriptions, we change (1) as follows: ;" Ev (mm) - A (cm). Er, where A(c,u) is the frequency characteristic of the high-pass filter. We will take the state function as in determining the integral correspondence of denominations. p

V. F-Uv, syu 1-1 -1 se mice with 50 Drink with "o spakh

If for a given threshold фах, ф « фах, then the permissible area of inscriptions exceeds the threshold. o To analyze the bursts at the edges, we will use the fact that the background of the substrate is significantly different from the brightness of the edges of the banknote. Select the edges and define the tolerance in pixels, which determines the distance from the boundary point to the nearest side of the rectangle covering the banknote. If the limit tolerance condition is violated at some point 25 and the point does not belong to the corner of the banknote determined by the expert,

GF) the banknote has tears on the edges.

When determining the bent angle, we plot the edge points lying around the corner of the banknote about the regression line uh khr. If, for at least one point, the distance to the straight line is greater than specified, then the angle is considered broken, otherwise - bent. because the part of the image of the banknote that has an intensity close to the dynamic range of brightness of the substrate is considered an opening. Let's go through all the pixels of the processed banknote image and select connected areas with an intensity close to the substrate. If the area of at least 6 of one area is larger than the allowable one, then there are holes on the banknote.

Unlike a tear, a tear does not introduce geometric distortions, so it does not always appear on the image of a banknote. Recognition of rips is carried out as a search for lines starting from the edge of the banknote in the infrared spectrum. To find them, change (1) as follows:

Ek(Ch,y) - A(ts,y ), where A(ts,y ) is the frequency characteristic of a high-pass filter, for example, Lapsasian 1 o

EE CHATSDUDEMY -4 1 1 o and filter only the areas of the current image adjacent to the edge of the banknote. After clustering and calculation of the areas of the lines starting from the edge of the banknote, a decision is made about the presence of flat breaks on the edges, provided that the total area of the breaks is above the limit. then Step 2. Checking the ultraviolet protection is carried out in the same way as when determining the denomination, only in the induced image obtained after the banknote is illuminated in the ultraviolet zone of the spectrum.

Step 3. Infrared protection is checked in the same way as when determining the rating, only in the infrared zone of the spectrum.

It should be noted that the thresholds Fah, (with /takhi-1,2,...,1) are selected at each stage of the software tool separately and are parameters that can be adjusted and directly affect the level of sorting money tickets. A money ticket is considered worn if in it has at least one of the signs of wear specified by the operator.Transmission of data from the scanning devices to the computing unit is synchronized with the speed of movement of banknotes.

The proposed method of determining the authenticity, denomination and degree of wear of banknotes is implemented in the device for sorting and counting banknotes, which consists of a housing in which there is a control unit with an interactive interface for adjusting the sorting parameters via a display and a keyboard, a unit for individual submission of banknotes from the foot, transport systems for submitting banknotes to the detectors of the node for controlling the passage and counting of banknotes, the node for determining the authenticity, denomination and degree of wear of banknotes, the node for dividing the flow of banknotes for sending banknotes to one of the stacking nodes with capacity depending on the decision made by the computer unit based on the data received from the detectors, stacking nodes with containers for assembling listed and sorted banknotes, moreover, control of the parameters of the position of the magnetic label detection detector, the solution of the guides of the unit for individual submission of banknotes, the speed of rotation of adjuster and adjustment of the gap between Gas and the surface of the rings of the separating unit, and the surface of the belts of the supply transport path is done automatically by the control unit depending on the size of the banknotes that are inserted into the device. and.

The feeding transport node of the unit for individual feeding of money tickets from the foot has its own separate drive with automatic adjustment of the feeding speed depending on the size of the money ticket inserted into the device. A node for pressing the foot of banknotes was introduced to ensure stable contact of the lower o

З35 of a money ticket foot with transport belts of a feeding unit with a device for checking the presence of money tickets in the stop holder, connected to the control of the drive of the clamping unit. The unit for individual submission of money tickets is equipped with movable guides with a drive for clear symmetrical positioning of the foot of money tickets in relation to the longitudinal axis of the mechanism transportation, regardless of the size of the banknote. The node for determining the authenticity, denomination and degree of wear of banknotes includes scanning devices that "enable to obtain a complete image of both sides of the banknote in the visible spectrum zone, the infrared spectrum, and the induced image obtained when illuminated in the ultraviolet spectrum zones, connected to the computing unit located in the control unit, which processes the information received from the scanning devices "" with the help of the image recognition software pre-installed on them and transmits the decision about authenticity to the nal and the degree of wear of the money ticket to the node for dividing the flow of money tickets to send the listed and sorted money tickets to one of the stacking nodes with containers. -And At the same time, the scanning device for obtaining images of a banknote from one split light stream in the visible zone and the infrared zone contains visible and infrared light illuminators, a lens, a translucent mirror, light filters for highlighting the visible and infrared spectrum zones, a device -I for image capture The scanning device for obtaining the image of a money ticket from one 5-fold split light stream in the infrared spectrum and the induced image obtained under illumination in the ultraviolet spectrum contains ultraviolet and infrared illuminators, a translucent mirror, a band optical light filter that transmits the visible part of the spectrum, and a light filter to highlight the infrared part of the spectrum, a device for capturing images.

The node for determining the authenticity, denomination and degree of wear of banknotes includes a scanning device for receiving images in the visible and infrared spectra, a scanning device for receiving images in the infrared zone of the spectrum and an induced image when illuminated by ultraviolet (IF) light, connected to a computer unit, which processes the information received from the scanning devices with the help of a specially designed image recognition software tool installed in advance on them and issues a decision on the state of the banknote. Scanning devices (scanners) produced in series and used for obtaining images of paper documents and inputting these images into a computing unit do not allow obtaining an image of a paper document simultaneously in two spectral zones (for example, in the visible and infrared), which makes them unsuitable for determining the authenticity of banknotes. They contain an illuminator, a lens, a CCD line, an electronic device for capturing an image from a CCD line and transferring it to a computer unit. The paper document is illuminated and the image of this document is focused using a lens on the CCD line, where it is converted into electronic form using an electronic device for removing the image from the CCD lines and in this electronic form is transferred to the computing unit.

We use a scanning device for obtaining an image of a banknote in the visible and infrared spectrum zones from one split light stream, shown in Fig. 9.

The specified technical result is achieved by installing a translucent mirror 105 after the lens 104, with the help of which the image of the banknote is transmitted to two CCD lines 108 located on the same optical axis. At the same time, a light filter for selecting the visible spectrum zone 106 is installed in front of one CCD line, and a light filter for selecting the infrared spectrum zone 107 is installed in front of the second. In addition to the illuminator in the visible spectrum zone 71, an infrared illuminator 72 is installed on the scanning device. 70 It is known that on real banknotes in special areas of the picture, the infrared image is significantly different from the visible one. By viewing these zones on the monitor screen, the operator has the opportunity to determine the authenticity of the banknote. When installing the image recognition software on the computer, the authenticity of the banknote is determined automatically.

A scanning device for obtaining images of a banknote in the visible and infrared spectrum /5 works as follows.

The light stream is focused by the lens 104, then it is divided by the translucent mirror 105 into two streams and transmitted to the CCD lines 108. The light filters 106 and 107 standing in front of each line are formed on one

The CCD line is visible, and the second CCD line has an infrared image. The electronic device 109 captures images from the CCD lines and transmits them to the computing unit.

The proposed machine also uses a scanning device to obtain an image of a banknote in the infrared spectrum and an induced image obtained when illuminated in the ultraviolet zone from one split light stream. This device is presented in Fig.10.

The specified technical result is achieved by installing a translucent mirror 105 after the lens, with the help of which the image is transmitted to two CCD lines 108, while in front of one line a light filter is installed to highlight the infrared spectrum zone 107, and in front of the second - a band optical light filter, which passes the visible part of the spectrum 110. Instead of a conventional illuminator, an ultraviolet illuminator 74 and an infrared illuminator 72 are installed on the device i) scanning.

When scanning a banknote, two images are captured - an infrared image and an induced image obtained when illuminated in the ultraviolet zone of the spectrum. It is known that the infrared image and the induced image, obtained when illuminated in the ultraviolet zone of the spectrum, differ significantly from the visible one on real banknotes in special areas of the drawing. By viewing these zones on the monitor screen, the operator can determine the authenticity of the banknote. If the computing unit is equipped with a software image recognition tool, the authenticity of the money ticket can be determined automatically.

Figure 1 shows a drawing of the device. me)

Fig. 2 shows the drive diagram of the device. uh-

Fig. 3 shows the movable guides of the stop holder of the unit for individual submission of money tickets.

Fig. 4 shows the drive for moving the carriage of the presser unit of the individual banknote supply unit.

Fig. 5 shows the separating node of the unit for individual submission of banknotes.

Fig. b shows the drive of the magnetic label detection detector. "

Fig. 7 shows the drive of the node for dividing the flow of money tickets. z c Fig. 8 shows the actuator of the stacker of the banknote stacking node.

Fig. 9 shows a diagram of a scanning device for obtaining images of a money ticket in the visible and ;" infrared zones of the spectrum.

Fig. 10 shows a diagram of a scanning device for obtaining an image of a banknote in the infrared zone of the spectrum and an induced image obtained when illuminated in the ultraviolet zone -I of the spectrum.

Fig. 11 shows a scheme of a laser detector for detecting duplicate banknotes. and Figure 12 shows a block diagram of the sequence of actions for determining the denomination and wear of banknotes. -I Figure 13 shows a block diagram of the sequence of actions for determining the authenticity of banknotes.

Fig. 14 shows a block diagram of the control unit of the device for sorting and counting money tickets. o Industrial version of the invention

The device for sorting and counting banknotes "BARS" (see Fig. 1, 2) contains the following main components: body 1 with mounting plate 2 and base 3, which serves to install the device on the table; the control unit 22, the unit for the individual supply of banknotes 4 from the foot 5, which consists of a stop holder equipped with two movable guides 6 and 7 for a clear symmetrical positioning of the foot of the banknotes in relation to the longitudinal axis of the transport system of the device, the separation unit 8 with the drive of the gap adjustment device, ( Ф, a node for pressing the foot of banknotes 9 with a drive of the lifting mechanism, a feeding transport node ka 10 with a drive, a system for transporting banknotes 11 with a stabilized drive, a node for determining the authenticity, denomination and degree of wear of banknotes, which includes a scanning device 12 for obtaining images in the visible and infrared zones of the spectrum; scanning device 13 for obtaining an infrared image and an induced image obtained when illuminated in the ultraviolet zone of the spectrum; ultraviolet detector 14; detector for detecting a magnetic mark 15; a node for controlling the passage of banknotes and their numbers 16; duplicate detection detector 17; nodes for dividing the flow of money tickets 18; node for stacking suitable currency notes 19; node for stacking worn banknotes 20; the assembly node of 65 banknotes of doubtful authenticity and denomination of 21.

The foot holder of the piece feed unit with the positional guides of the foot of the banknotes in relation to the longitudinal axis of the transport device with the drive (see Fig. 1, 3, 4) consists of a limiting plate 23, which serves to support the front part of the foot of the banknotes, with a slot in the center for movement clamping device, front guide 6 and rear guide 7, which are smooth polished plates. Each of the guides is attached to the carriage 24, which has the ability to move along two cylindrical risers, the front on the long 25, and the rear on the short 26, fixed in parallel on the mounting plate. The carriages are mechanically connected to a toothed belt 27 located between the carriages, one end of which is thrown over a smooth pulley 28, and the other end is engaged on a toothed pulley 29 fixed on the shaft of the electric motor 30. When the shaft of the electric motor rotates in the counterclockwise direction 7/ 0 Directional arrows synchronously converge to the center, and diverge when rotating clockwise.

The rear guide has a support roller 31. The separating unit 8 with the drive of the gap adjustment device (see Fig. 1, 2, 5) consists of a housing 32, on which two axles 33 with non-drive rollers 34 and a drive shaft 35 with rollers fixed on it are fixed with grooves for rings 36 and a drive toothed pulley 37. The body through the frame 38 is fixed on the axis 39, rigidly fixed on the mounting plate. The adjustment of the clearance is carried out by rocking the body with the frame in relation to the axis. The foot 40, which is attached to the housing and transmits its movement, is pressed by the spring 41 to the nut 42 and when the screw 43, fixed coaxially on the shaft of the electric motor 44, is rotated, the mechanism of the separation unit is raised or lowered in one direction or another. On both sides of the separation unit, there are auxiliary reinforced pressure rollers, consisting of rollers 99, levers 100, an axis 101 rigidly fixed to the mounting plate, and its spring 102. The rollers are constantly pressed against the surface of the transport belts thanks to the spring and create improved contact between the ticket and by transport lanes in the area of the separation node.

The unit for pressing the foot of the banknotes 9 with the drive of the lifting mechanism (see Fig. 1, 4) consists of two cylindrical guides 45, attached by holders 4 6 to the limiting plate 23, which serves to support the front part of the foot of the banknotes along which the carriage 47 moves with a clamp 48 from a bent polished sheet, which has a straight section parallel to the upper part of the foot of the banknotes, fixed on it. The downward movement along the guides is carried out due to the own weight of the clamp and the carriage. Lifting i) of the presser before placing the foot of the banknotes is carried out by the lifting mechanism, which consists of a toothed belt 49, one end of which is thrown over a smooth pulley 50, and the other end is engaged on a toothed pulley 51, fixed on the shaft of the electric motor 52. Between the toothed pulley and smooth village

With shShkiv on the toothed belt, a hook 53 is fixed, which exceeds the size of the groove of the hook 54, fixed on the carriage of the presser, through which the belt is passed. When moving up, the belt loop rests against the hook and lifts against the presser. In working condition, when banknotes are being sorted, the shutter is in the lowest position (to the position near the smooth pulley.

The feeding transport unit 10 (see Fig. 1, 2) consists of three unrelated sections - two sections of the lower conveyors 55, 56 and one section of the upper conveyor 57. The load-bearing elements of the conveyors are circular endless belts made of friction material, stretched on the leading drums with grooves 58, fixed on the shafts and driven drums 59, installed on the axles. Actuation of the feeding transport unit is carried out through a double-sided toothed belt 60, which is engaged with toothed pulleys 61, fixed on the shafts of the driving drums and a toothed pulley 62, fixed on the shaft of the drive "electric motor 63. with c. System of transportation of money bills 11 (see Fig. 1,2) consists of several upper and lower sections. conveyors, the bearing elements of which are round endless belts made of friction material, stretched on leading drums with grooves 64, fixed on the shafts, and driven drums 65, installed on the axles, and serves to pass banknotes sequentially through scanning devices, detectors and nodes of control of passage and numbers. To ensure continuity in the transport system in the gaps between the scanning devices 12, 13 and the magnetic label detection detector 15, the transition from one section to another is carried out on a drum due to the symmetrical shift of the location of a pair of circular traction belts of the next section on adjacent grooves. To ensure synchronism in work at different parts of the transport system - the drive is carried out by one double-sided toothed belt 66, which is engaged with toothed pulleys 67, fixed on the shafts of sectional drive drums, and toothed pulley 68 of the drive electric motor 69, which has a speed stabilization system rotation. Smooth pulleys 70, fixed on axles, are intended for

From giving the belt a given direction.

The scanning device for obtaining images of a money ticket from one split light stream in the visible and infrared spectrum zones 12 consists of two visible spectrum illuminators 71, two infrared illuminators 72 and the housing 7/3, in which the lens is located (see Fig. 9) 104, translucent mirror 105, light filter for selecting the infrared zone of the spectrum 107, light filter for selecting the visible

F) spectrum zones 106, CCD lines 108, electronic devices 109 for capturing images from CCD lines. The information received from the scanning device is processed by the computing unit located in the control unit 22 of the sorting device. 60 The scanning device for obtaining an image of a banknote from one split light stream in the infrared zone of the spectrum and the induced image obtained during illumination in the ultraviolet zone of the spectrum, 13 (see Fig. 1) consists of two ultraviolet illuminators 74, an infrared illuminator 2 and a housing 75 , in which are located (see Fig. 10) a lens 104, a translucent mirror 105, a light filter for selecting the infrared zone of the spectrum 107, a band optical light filter that passes the visible part b5 of the spectrum 110, CCD lines 108, electronic devices 109 for removing images from CCD lines. The information received from the scanning device is processed by the computing unit located in the control unit

22 sorting devices.

Ultraviolet detector 14 serves to generate an electronic signal for the control unit of the device, shows the level of luminance of the banknote after illuminating it with light in the ultraviolet zone of the spectrum - generally accepted and consists of a case, an ultraviolet illuminator, receivers of the reflected light flux with a node for generating electronic signals.

The magnetic label detection detector 15 (see Fig. 1, 6) serves to generate an electronic signal about the passage of a magnetic label for the control unit of the sorting device and consists of the upper 7 6 and lower 77 magnetizing devices, a magnetic probe 78 installed in the guide 79, which together with /o Carriage 80 moves along two parallel cylindrical risers 81 fixed on the mounting plate.

The drive is carried out by an electric motor 82 with a drum 83 fixed to the shaft, along the outer surface of which a string 84 (one turn) is passed, fixed at two ends of the carriage 80. When the shaft of the electric motor rotates, the string moves the carriage with a magnetic probe along the risers (in the transverse direction relative to the movement of money ticket).

The node for controlling the passage and counting of banknotes 16 (see Fig. 1) serves to generate signals for the control unit of the sorting device, which indicates the location of specific banknotes in the path of the movement mechanism and in the path of the conveyors of the stacking nodes (generally accepted and consisting of a light emitter stream, photoreceiver and node for forming electronic signals).

The detector for detecting the duplication of banknotes 17 (see Fig. 1) serves to generate electronic signals for the control unit of the sorting device, which indicate the detection of duplicate banknotes in the path of the movement mechanism for their removal and sending them to the node for stacking questionable banknotes (consists of emitters light flux, photodetectors and electronic signal generation node).

The laser detector for detecting duplicate banknotes (see Fig. 11), which we use, includes a laser sensor and a computing node 116. The laser sensor consists of an emitter in the form of a laser diode 111, a collimator lens 112, a slit diaphragm 113, a lens 114, the lines of the photo receiver in the form of PZZ-line 115. The measurement of the thickness of the banknote is performed in the following way. The laser beam i) forms a thin light stroke on the roller, on one or two banknotes at points A1, VI, C1 (see

Fig. 11). They correspond to the points of the stroke image on the PZsS-line A2, B2, C2. The distance between the base point of the image position of the light stroke A2 and points B2 or C2 is proportional to the measured thickness. Signals from the right side of the PZZ-line are sent to the computer node, in which: - the coordinates of the points of the image of the stroke on the roller are memorized, as well as when the banknote passes, and, - the specified value of the thickness of the banknote is memorized, and - - it is calculated " "average" value of the thickness of one or more banknotes and is compared to the specified value.

The banknote flow separation node 18 (see Fig. 1, 7) serves to change the direction of the banknote movement from the main direction, along the path of the movement mechanism towards the stacking node, and consists of two deflecting elements (arrow ) 85, fixed on an axis 86, coaxially connected by a coupling 103 with an electric rotary device 87, which, when turned on, transfers the deflecting elements from the initial lower to the upper position at a certain angle.

The nodes for stacking money bills 19, 20, 21 (see Fig. 1, 8) have an identical design and consist of "underfeed conveyors 88, a guide 89, a stacker 90, which is a disk with multi-turns with spiral grooves, fixed cantilever on an axis 91, connected by a clutch 92 to an electric motor 93, and a storage container 94, in which a device for checking the presence of banknotes 95 is installed. ;" The control unit (see Fig. 14) contains: - a controller for the generation of electronic signals from a magnetic label detection detector, an ultraviolet detector, a node for controlling the passage and number of banknotes, a detector for detecting the duplication of banknotes - and banknotes, a node for controlling the physical state of banknotes, devices for monitoring the presence of banknotes in stacking nodes; o - means of forming an electronic signal of a scanning device for obtaining visible and infrared images, a scanning device for obtaining infrared and induced images; - the control unit of the movement system, designed for receiving information from means of forming electronic signals and issuing commands to means of controlling mechanisms; mechanism controls for

From the drive of the banknote transportation system, the drive of the feeding transport node, the drive of the position guides, the drive of the foot presser of the banknotes, the drive of the adjustment of the separating node, the drive of the separators of the flow of money tickets, the drive of the stackers, the drive of the movement of the probe of the magnetic label detection detector; - means of setting work modes and visualization of the results of the sorting and counting process, consisting of

F) display, keyboard and "Mouse" type manipulator. ka The device for sorting money tickets works in the following way.

The banknote foot 5 is placed in the foot holder of the block of piecewise submission of banknotes, while the front side of the foot rests against the limiting plate 23, and the base of the foot is placed on the round belts of the conveyor 55, which are supported by non-driveable drums of the feeding unit. With a small delay in time, when there is a foot of banknotes in the stop holder, the drive of the clamping unit 9 is activated, which lowers the clamp 48 to the upper part of the foot of banknotes 5. At the same time, the electric motor 69 is started to accelerate, which drives the main path of the mechanism for transporting money of tickets 11. 65 The electric motor 63 of the feeding transport unit 10 with the help of a toothed pulley 62 fixed on the shaft and a double-sided toothed belt that is engaged with the toothed pulleys 61 fixed on the shafts of the driving drums of three sections, and the drive shaft of the separating unit, leads to the movement of round conveyor belts and friction rings of the separating assembly, while the direction of movement of the friction rings of the separating assembly is opposite to the direction of movement of the conveyor belts. Since the force of friction between the lower bill of the foot and the transport belts is greater than the force of friction between the bills in the foot, the lower bill is removed from the foot by the transport belts, while the rest of the bills are oriented along the profile of the limiting plate 23. The lower bill of the foot moves transport belts and is fed through the gap between the outer surface of the transport belts and the outer surface of the friction rings of the separation unit 8. Because the adhesion force of the transport belts is slightly greater, 7/0 than the friction rings of the separation unit, the transport belts on the money ticket being fed greater influence than the rings of the separating unit, therefore the lower banknote is carried further along the block of piecewise supply of banknotes to the accelerating transport path. The strength of the interaction between the rings of the separating node and the following banknotes significantly exceeds the force of adhesion between adjacent banknotes, as a result of which all subsequent banknotes are returned by the rings of the separating node back to foot 5. This /5 bame is carried out when submitting stuck, doubled, lined, etc. banknotes. Next, the cash ticket passes through the accelerating transport path, consisting of the upper 57 and lower 56 sections. The driving drums of these sections are connected to the drive shafts through the overtaking clutches 96. When the banknote is captured by the receiving roller 97 of the main path of the transport system, the speed of movement of the banknote increases due to the difference in speed of the main path of the transport mechanism and the piece feed path, while the accelerating transport path thanks to the overtaking clutches 96 acquires a speed greater than the main speed of the transport lanes of the unit for individual delivery of banknotes, where the spatial division of banknotes is carried out on the section of the accelerating transport tract. The belts of the conveyor move the banknote sequentially through the magnetization device of the magnetic label detection detector, nodes for controlling the passage of the banknotes and their numbers, ultraviolet detector, magnetic label detection detector, scanning devices; a duplicate detection detector and, depending on the physical state, a suitable stacking node or a worn-out ticket stacking node is selected and, accordingly, the flow separation node corresponding to this stacking node (8) is turned on, and if it is a questionable ticket, it is sent directly along the main path of the transport mechanism to the point of stacking questionable tickets. During the passage of money tickets through the control nodes, their parameters are checked, for example, the image in the visible spectrum zone and based on the aggregate data from the electronic signal generation nodes for this money ticket, the control unit makes a decision to which category to assign this money ticket, for example, that this money ticket is valid. The control unit 22 determines the time of the ticket's approach to the deflecting element 18 of the separation node M of the flow before the node of stacking suitable tickets 19 for its inclusion. When the deflecting element is turned on, the valid ticket is moved by the underfeed conveyor of the node for stacking valid banknotes through the passage control node and number 16 to the stacker 90, in the form of a disk with multi-turn spiral grooves. When leaving the underwater conveyor, the cash ticket moves along the guide 8 9 and enters the spiral groove of the stacker 90, where it slides to the end due to the given impulse of movement and stops.

At the same time, the stacker rotates and when the front end of the banknote reaches the flat wall, the banknote is removed from the spiral and placed on the bottom of the stacking container 94. When the set number of banknotes in one of the stacking nodes is reached - suitable or worn, the feeding tract 7) c of the transport unit 10 is turned off, and the stop of the transport system tract 11 is carried out after a complete run of all the money tickets that are in the tract to the dubious stacking node 21. After removal from the stacking node;" bundles of banknotes (19 or 20), the process of sorting and counting is automatically resumed.

Therefore, the proposed invention allows: - To increase the reliability of determining the authenticity, denomination and degree of wear of banknotes, since - And not individual points are analyzed, but the complete image of both sides of the banknote. - To avoid the need to rework the system of sensors (detectors) when switching to a new type of cash tickets, which requires spending time and money, since with the proposed method, to switch to cash tickets of another country, it is enough to train the software image recognition tool installed on the computing unit, to the new images of banknotes. o Literature

Ge 1. Oe Ha Kie Zuzvietz Advertising Avenue. 2. Certificate of official registration of the computer program "Universal pattern recognition system

ZTAKS" (M 960128 dated 18.04.96), the right holder of Firma Data-Center LLC.

F!

Claims (9)

The formula of the invention is) 1. The method of determining the authenticity, denomination and degree of wear of banknotes, which consists in the fact that the banknote is illuminated with visible, infrared and ultraviolet light, which is distinguished by the fact that the banknote is scanned using scanning devices, as a result of which complete images of both are obtained sides of the banknote in the visible spectrum, the infrared spectrum, and the induced image (luminescent and/or fluorescent) as a result of illumination in the ultraviolet spectrum, transmit the received images to the computing unit, on which the image recognition software 65 is installed in advance, which is used to compare the image of the analyzed banknote with reference images, and on the basis of the developed solving rules, a decision is made about whether the banknote belongs to one of three classes - suitable, worn or doubtful: the denomination and degree of wear are determined as follows: the image of the analyzed money is broken of the ticket and the reference image into blocks from K-areas of recognition and O-areas of comparison on the standard, determine the value of the state function from the image area, compare this value with the threshold value and make a decision about the status of the area, determine the denomination of the banknote by filtering the area Kk, a filter with a frequency response Ed D1) consistent with the image of area 0; that is subject to recognition, while the correspondence of the image consists of the general, integral similarity of the entire banknote and the presence or absence of a drawing in the controlled areas, take the function of the state of integral correspondence equal to p where Ф- U Фф i-th To; FIN Stakh 0 o. if for a given threshold dutakh , with rtahye , - they perform a compliance check in the controlled areas, otherwise the denomination does not correspond to the specified one, and they conclude that the banknote is dubious, to assess compliance in the controlled areas, an additional binary and , vector (OM -1 . ticket, otherwise the money ticket is considered doubtful, to determine the degree of wear and tear, the function of the state of the money ticket is taken as equal to n; if for the given threshold srtakh о, г, тах, then the money ticket is considered worn, to detect i) Фф- У о, i-th spots (1) are changed as follows: Hn -A "Ed ; where 4 is the frequency characteristic of the low-pass filter, the state function is taken as when determining the integral correspondence of the nominals n; , 5, ritakh, then they conclude that the permissible area of spots exceeds the threshold, to detect inscriptions (1) is changed as follows: Гн -А "Ed , where 4 is the frequency characteristic of the high-pass filter, the state function is taken as when determining the integral correspondence denominations n, - s ona. и-и и"? de To; Thursday, s tah 0 o. if for a given threshold rtaho, du rtaye o, then the permissible area of inscriptions exceeds the threshold; for the analysis (95) of tears on the edges, the edges are distinguished and the tolerance in pixels is determined, if the condition of the limit tolerance is violated at some point and the point does not belong to the corner of the banknote determined by the expert, then it is decided that from 50 there are tears on the edges of the banknote; when determining the bent angle, a regression line is constructed in -ah- from the edge points lying around the corner of the banknote, if for at least one point the distance to the straight line g" is greater than the given one, then the angle is considered broken, otherwise - bent; to recognize holes, all pixels of the processed banknote image are scanned and connected areas with an intensity close to the intensity of the substrate are selected, and if the area of at least one area is larger than the 259 allowable area, it is concluded that there is a hole on the banknote ; to recognize flat tears of the GF) edges (1) are changed as follows: Hn -A "Ed , where 4 is the frequency characteristic of the high-pass filter, and the areas of the current image adjacent to the edge of the banknote in infrared light are filtered, clustering is carried out and calculation of areas bounded by lines starting from the edge of the banknote, because if the total area of tears is greater than the limit, then a decision is made about the presence of flat tears of the edges; checking the ultraviolet protection is carried out in the same way as when determining the denomination, but in the induced image obtained after the banknote is illuminated in the ultraviolet zone of the spectrum; the inspection of infrared protection is carried out in the same way as when determining the denomination, but in the infrared zone of the spectrum, the thresholds are hundred, roof |-4.2... And are chosen at each stage separately, the banknote is considered worn if there is a b5 in it at least one of the signs of wear specified by the operator. 2. A device for sorting and counting money tickets, consisting of a housing, which houses a control unit with an interactive interface for adjusting the sorting parameters through a display and a keyboard, a unit for individually feeding money tickets from the foot, a transport system for feeding money tickets to the detectors of the Passage Control Node and the number of banknotes, the node for determining the authenticity, denomination and degree of wear of banknotes, the node for dividing the flow of banknotes to send banknotes to one of the stacking nodes with a capacity depending on the decision made by the computing unit based on the data received from the detectors, stacking nodes with containers for stacking listed and sorted banknotes, which is distinguished by the fact that the control of the parameters of the position of the magnetic label detection detector (15), 7/0 of the inclination of the guides (6, 7) of the unit for individual supply of banknotes (4), the rotation speed of the stacker (90 ) and adjusting the gap between the surface of the rings (36) from separating unit (8) and the surface of the lanes of the feeding transport path is carried out automatically by the control unit (22) depending on the size of the banknotes placed in the device, the feeding transport unit (10) of the unit for unit feeding of banknotes (4) from the foot (5) has its own separate drive with automatic adjustment of the feeding speed depending /5 On the size of the banknote inserted into the device, a node for pressing the foot of the banknote (9) is introduced to ensure stable contact of the lower banknote foot with the transport belts of the feeding unit (10) with a control device presence of banknotes in the stop holder, connected to the control of the drive of the clamping unit, the unit for individual supply of banknotes (4) is equipped with movable guides (6, 7) with a drive for clear symmetrical positioning of the foot of banknotes in relation to the longitudinal axis of the transport mechanism, regardless of the size of the banknotes tickets, the definition node is authentic value, denomination and degree of wear of banknotes includes scanning devices (12, 13), which allow to obtain a complete image of both sides of the banknote in the visible spectrum zone, infrared spectrum zone and the induced image obtained when illuminated in the ultraviolet spectrum zone, connected with a computer unit located in the control unit (22), which processes the information received from the scanning devices (12, 713) with the help of the image recognition software installed in advance on them and transmits the decision about the authenticity, denomination and degree of wear of the banknote to the node and ) dividing the stream of banknotes (18) to direct the listed and sorted banknotes to one of the stacking nodes (19, 20, 21) with containers (94), while the scanning device for obtaining images of the banknotes from one split light stream in the visible and infrared spectrum zones (12) contains s zo Illuminators of visible 72) light, lens (104), translucent mirror (105), light filters for selecting the visible zone (106) and infrared zone (107) of the spectra, a device for capturing an image (109); a scanning device for obtaining an image of a money ticket from one split light stream in the infrared zone of the spectrum and an induced image obtained when illuminated in the ultraviolet zone of the spectrum (13) contains ultraviolet illuminators (74) and infrared illuminators (72), a translucent mirror (105 ), me) a band optical light filter that transmits the visible part of the spectrum, (110) and a light filter for selecting the infrared zone (107) of the spectrum, a device for capturing images (109). C. The device according to claim 2, which is characterized in that it has a banknote foot pressing unit (9) with a lifting mechanism drive, which consists of two cylindrical guides (45) attached by means of holders (46) to a limiting plate (23) , which serves to support the front part of the foot of the banknotes, on which the carriage (47) moves with a clamp (48) fixed on it, made of a bent polished sheet with a straight section parallel to the upper part of the foot of the banknotes, lifting the clamp before laying the feet of banknotes is carried out by a lifting mechanism consisting of a toothed belt;" (49), one end of which is thrown over a smooth pulley (50), and the other end is engaged on a toothed pulley (51) fixed on the shaft of an electric motor (52), a loop (53) is fixed between the toothed pulley and the smooth pulley on the toothed belt , which exceeds the size of the groove of the hook (54), fixed on the carriage -I presser, through which the pass is passed. 4. The device according to claim 2, which is characterized by the fact that the separating unit (8) of the unit for individual submission of banknotes is equipped with three rings of friction material, each of which is put on three rollers that - AND form the shape of the outer contour of the separating unit, the upper drive , and the other two form a rectilinear geometry of the separating contact strips, two auxiliary spring-loaded pressure rollers, located on the edges of the separating node, increase the contact of the lower banknote with the strips of the feeding path and stabilize the separation process. 5. The device according to claim 2, which is characterized by the fact that the feeding transport unit (10) consists of three unrelated sections - two sections of the lower conveyors (55, 56) and one section of the upper conveyor two (97), bearing elements of the conveyors there are round endless belts made of friction material, stretched on the leading drums with grooves (58), fixed on the shafts, and the driven drums (59), installed on the axles, (F, the feeding transport unit is driven through a double-sided toothed belt (60), which ka is in engagement with the toothed pulleys (61) fixed on the shafts of the driving drums and the toothed pulley (62) fixed on the shaft of the drive electric motor (63). in 6. The device according to claim 2, which differs in that the transportation system (11 ) of banknotes consists of several sections of upper and lower conveyors, the bearing elements of which are circular endless belts made of friction material, stretched on guide drums with grooves (64), fixed on shafts, and driven drums (65) installed on axles, and serves to pass banknotes sequentially through scanning devices (12, 13) of the node for determining the authenticity, denomination and degree of wear of banknotes, ultraviolet 65 Detector (14), magnetic label detection detector (15) and the node for controlling the passage and counting of money tickets (16), to ensure continuity in the transport system in the gaps between the scanning devices (12, 13) and by the magnetic mark detection detector (15), the transition from one section to another is carried out on the drum due to the symmetrical displacement of the location of a pair of circular traction belts of the next section on adjacent grooves, to ensure synchronicity in the work in different sections of the transportation system, the drive is carried out by one bilateral toothed belt (66), which is engaged with the toothed pulleys (67) fixed on the shafts of the sectional drive drums, and the toothed pulley (68) of the drive electric motor (69), which has a rotation speed stabilization system, smooth pulleys (70) fixed on axes designed to give the belt a given direction. 7. The device according to claim 2, which differs in that instead of a toothed drive belt, a flat belt is installed in the banknote transportation system, and the toothed drive pulleys are replaced by flat and/or barrel-shaped pulleys to reduce noise. 8. The device according to claims 2, 3, which differs in that the device has two nodes for stacking valid banknotes and/or two nodes for stacking worn banknotes, and/or one node for stacking banknotes of doubtful authenticity and denomination. 9. Device according to claims 2, 3, 4, 5, which differs in that the device is additionally equipped with a scanner for reading the microprint of a money ticket. c schi 6) c (ze) y (ze) and - - and? -i (95) -i (95) Ko) ime) 60 b5