RU2224221C2 - Procedure establishing authenticity, denomination and degree of decrepitude of banknotes and machine for their sorting and counting - Google Patents

Abstract

FIELD: testing and sorting of banknotes to detect authentic, decrepitated and counterfeit banknotes. SUBSTANCE: in correspondence with proposed procedure banknotes are scanned and their complete images in visible, infrared and ultraviolet ranges are generated. Generated images are processed with the aid of statistic methods of analysis and wear, stains, tears, cutout, bent and torn-away edges, holes and so forth. Machine includes unit of piecemeal feed, transportation system, unit of transition and counting, unit establishing authenticity, denomination and degree of decrepitude, unit separating flow of banknotes for banknote packing. Rate of feed can be controlled in unit of piecemeal feed. Computer identifies types of banknotes with allowance for statistic analysis of generated sections of image and their comparison with reference banknotes. EFFECT: increased reliability of establishment of banknotes of above-mentioned types. 9 cl, 14 dwg

Description

 Description text in facsimile form (see graphic part) and

Claims (9)

1. The method of determining the authenticity, dignity and degree of dilapidation of money tickets, which consists in the fact that the money ticket is illuminated with visible, infrared ultraviolet light, characterized in that the money ticket is scanned using scanning devices, resulting in complete images of both sides of the money ticket in the visible spectral region, the infrared region of the spectrum and the induced image (luminescent and / or fluorescent) as a result of illumination in the ultraviolet region of the spectrum, the resulting image is transmitted in the computing unit, on which the pattern recognition software is installed in advance, by which the images of the analyzed money ticket are compared with the reference images, and on the basis of the developed decision rules, a decision is made whether the money ticket belongs to one of three classes - valid, old or doubtful: determining the value and degrees of disrepair are performed as follows: the image of the analyzed money ticket and the reference image are divided into blocks from R-regions aspoznavaniya and D-domains of comparison on the reference value determined by the state function G _i image region, this value is compared with a threshold value and decide on the status of the field, determine the merit money ticket by filtration region R _i filter with a frequency response F $\genfrac{}{}{0ex}{}{\text{*}}{\text{Di}}$ , consistent with the image of the domain D _i to be recognized, while the correspondence of the image consists of the general, integral similarity of the whole money ticket and the presence or absence of a picture in the controlled areas, consider the state function of the integral correspondence

Where

if for a given threshold Ф ^max , Ф≥Ф ^max , a conformity check is performed in controlled areas, otherwise the dignity does not correspond to a given one, and it is concluded that a money ticket is doubtful, an additional binary vector I _i (0, 1), I = 1, ..., n, where I _i = 1 - for the controlled zones, I _i = 0 - for the rest, if

- the dignity does not correspond to the specified one, they proceed to the analysis of the signs of a decrepit cash ticket, otherwise the cash ticket is considered doubtful, to determine the degree of deterioration, the cash ticket state function is considered equal

if for a given threshold Ф ^max , Ф <Ф ^max , then the cash ticket is considered worn out, to detect spots change as follows:

where A is the frequency response of the low pass filter, the state function is taken as in determining the integral correspondence of advantages

if for a given threshold Ф ^max , Ф <Ф ^max , then conclude that the allowable spot area exceeds the threshold, to identify the labels change as follows:

where A is the frequency response of the high-pass filter, the state function is taken as in determining the integral correspondence of advantage

Where

if for a given threshold Ф ^max , Ф <Ф ^max , then the allowable inscription area exceeds the threshold, to analyze breaks at the edges, select edges and determine the tolerance in pixels, if the limit tolerance condition is violated and the point does not belong to the neighborhood of the money ticket angle determined by the expert , then conclude that there are outcrops on the money ticket at the edges, when determining the bent angle, draw the regression line y = ax + b if the distance to the line for at least one point is plotted by the boundary points lying in the vicinity of the corner of the money ticket the line is larger than the specified one, then the angle is considered to be torn off, otherwise it is bent, to recognize holes pass through all the pixels of the image of the processed money ticket and select connected areas with an intensity close to the intensity of the substrate, and if at least the area of one area is more than acceptable , then conclude that there is a hole on the money ticket to recognize flat tears of edges

where A is the frequency response of the high-pass filter, and filter the areas of the current image adjacent to the edge of the money ticket in infrared light, cluster and calculate the areas of the lines starting from the edge of the money ticket, if the total area of tears is above the threshold, then decide on the presence of flat tears of the edges, check the UV protection as in determining the value, but in the induced image obtained after illuminating a money ticket in the ultraviolet region of the spectrum, the infrared protection is checked by The same as in determining the dignity, but in the infrared region of the spectrum, the thresholds Φ ^max ,

, i = 1,2, ..., n are selected at each stage separately, a money ticket is considered dilapidated if it has at least one of the signs of disrepair specified by the operator. 2. A device for sorting and counting money tickets, consisting of a housing in which a control unit with an interactive interface for adjusting sorting parameters via a display and a keyboard is located, a unit for supplying money tickets from a stack, a transport system for delivering money tickets to detectors of a passage control and account unit cash tickets, a node for determining the authenticity, dignity and degree of dilapidation of money tickets, a node for splitting the flow of cash tickets for sending cash tickets to one of the stacking nodes with capacity depending on the decision made by the computing unit on the basis of data received from the detectors, stacking units with containers for folding counted and sorted cash tickets, characterized in that the position parameters of the magnetic mark detection detector (15), the guide solution (6, 7 ) of the block of piece delivery of cash tickets (4), speed of rotation of the stacker (90) and adjustment of the gap between the surface of the rings (36) of the separating assembly (8) and the surface of the belts of the feeding transport path automatically by the control unit (22), depending on the size of the cash tickets placed in the device feeding the transport unit (10) of the piece-by-piece cash ticket supply unit (4) from the stack (5), has its own separate drive with automatic adjustment of the feed rate depending on the size of the cash of a ticket to be inserted into the device, a node for clamping the stop of cash tickets (9) was introduced to ensure stable contact of the lower cash ticket of the foot with transport belts of the feeding unit (10) with a device for monitoring the availability of cash bills locks in the stop holder associated with the drive control of the clamp unit, the unit for supplying cash tickets (4) is equipped with movable guides (6, 7) with a drive for clearly symmetrical positioning of the stack of cash tickets relative to the longitudinal axis of the transport mechanism, regardless of the size of the ticket, authentication unit , advantages and degrees of dilapidation of money tickets includes scanning devices (12, 13), allowing to obtain a complete image of both sides of a money ticket in the visible region of the spectrum, infra the red zone of the spectrum and the induced image obtained by illumination in the ultraviolet region of the spectrum associated with a computing unit located in the control unit (22), which processes the information received from the scanning devices (12, 13) using the image recognition software pre-installed on them and transmits the decision on the authenticity, dignity and degree of dilapidation of the cash ticket to the cash ticket flow splitting unit (18) for sending recounted and sorted cash tickets to in from stacking units (19, 20, 21) with capacities (94), and the scanning device for obtaining images of a money ticket from one split light stream in the visible and infrared regions of the spectrum (12) contains visible (71) and infrared (72) illuminators ) light, a lens (104), a translucent mirror (105), filters for highlighting the visible zone (106) and infrared zone (107) of the spectra, an image pickup device (109), a scanning device for acquiring an image of a money ticket from one split light stream in infrared zones The spectrum and the induced image obtained by illumination in the ultraviolet region of the spectrum (13) contains ultraviolet illuminators (74) and infrared illuminators (72), a translucent mirror (105), a band-pass optical filter that passes the visible part of the spectrum (110), and a filter for highlighting infrared zone (107) of the spectrum, a device for capturing images (109). 3. The device according to claim 2, characterized in that there is a node clamping the foot of cash tickets (9) with a drive of the lifting mechanism, consisting of two cylindrical guides (45), fixed with holders (46) to the restrictive plate (23), which serves to support the front of the stack of cash tickets, along which the carriage (47) with the clip fixed on it (48) is fastened from a bent polished sheet having a straight section parallel to the top of the stack of cash tickets, the clamp is lifted before laying the stack of cash tickets is secured by a lifting mechanism consisting of a toothed belt (49), one edge of which is thrown over a smooth pulley (50), and the other edge is engaged on a toothed pulley (51), mounted on an electric motor shaft (52), between a toothed pulley and a smooth pulley a snag (53) is fixed on the toothed belt, which exceeds the size of the groove of the hook (54) fixed to the clip carriage through which the belt is passed. 4. The device according to claim 2, characterized in that the separating unit (8) of the unit for supplying cash tickets is equipped with three rings of friction material, each of which is dressed in three rollers that form the outer contour of the separating unit, the upper one is drive, and two the rest create a straightforward geometry of the separating contact strips, two auxiliary spring-loaded pinch rollers located at the edges of the separating unit, increase the contact of the lower cash ticket with the belts of the feeding path and stabilize the separation process. 5. The device according to claim 2, characterized in that the feeding transport unit (10) consists of three sections that are not connected to each other - two sections of the lower conveyors (55, 56) and one section of the upper conveyor (57), the supporting elements of the conveyors are round endless belts of friction material, tensioned on the driving drums with grooves (58), mounted on shafts and driven drums (59) mounted on the axles, the drive of the conveying transport unit is driven through a double-sided toothed belt (60) meshed with gear wheels you (61), attached to the shaft of driving drum and a toothed pulley (62) attached to the shaft of the drive motor (63). 6. The device according to claim 2, characterized in that the money ticket transportation system (11) consists of a number of sections of the upper and lower conveyors, the supporting elements of which are circular endless belts of friction material, tensioned on the driving drums with grooves (64), fixed on the shafts and driven drums (65) mounted on the axes, and serves to pass cash tickets sequentially through scanning devices (12, 13) of the node for determining the authenticity, dignity and degree of decay of cash tickets, ultraviolet children a ctor (14), a magnetic tag detection detector (15) and a cash flow control and cash account counting unit (16), to ensure continuity in the transport system between the scanning devices (12, 13) and the magnetic tag detection detector (15) one section to another is carried out on the drum due to the symmetrical displacement of the location of the pair of pulling round belts of the next section to adjacent grooves, to ensure synchronism in operation in different parts of the transportation system, the drive I have one double-sided toothed belt (66) meshed with toothed pulleys (67), mounted on the shafts of the sectional drive drums and a toothed pulley (68) of the drive motor (69), which has a speed-stabilization system, smooth pulleys (70), mounted on axles, designed to give the belt a given direction. 7. The device according to claim 2, characterized in that a flat belt is installed in the cash ticket transportation system, and the pulleys are flat and / or barrel-shaped to reduce noise. 8. The device according to claim 2 or 3, characterized in that the device has two nodes stacking suitable cash tickets, and / or two nodes stacking dilapidated cash tickets, and / or one node stacking cash tickets of doubtful authenticity and dignity. 9. The device according to claim 2, or 3, or 4, or 5, characterized in that the device additionally has a scanner for reading the micro-font of the cash ticket.

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