RU185984U1 - PORTABLE DEVICE FOR SEMI-AUTOMATIC CHECK OF AVAILABILITY ON THE BANKNOTS OF PROTECTIVE ANTI-STOX TAGS (SPECIAL ELEMENT) - Google Patents

Abstract

The utility model relates to semi-automatic devices for verifying the authenticity of banknotes, in particular to portable semi-automatic devices for verifying the authenticity of banknotes by the presence of a protective anti-Stokes element (special element I), by registering anti-Stokes radiation under the influence of exciting IR radiation, and can be used in semi-automatic banknote authenticity detectors any class and complexity. The technical result is to increase the reliability level of banknote authentication in semi-automatic devices for verifying banknote authenticity. The semi-automatic banknote authentication device includes a banknote pass slot, a central processor main board, a banknote check status display indicator panel, IR anti-Stokes security mark detection sensors located on the left panel of the banknote passage slot and on the right panel of the banknote passage slot. Moreover, the infrared detection sensors include emitting infrared sensors and receiving infrared sensors.

Description

Technical field

The utility model relates to semi-automatic devices for verifying the authenticity of banknotes, in particular, to portable semi-automatic devices for verifying the authenticity of banknotes by the presence of a protective anti-Stokes label (special element I), by registering an invisible infrared (IR) anti-Stokes radiation under the influence of exciting IR radiation, and can be used in automatic and semi-automatic banknote authenticity detectors of any class and complexity.

State of the art

The principle of operation of semi-automatic currency detectors is as follows. The user takes the bill by a wide edge, places it in the receiving slot of the device and passes the bill from the beginning to the end of the slot. During the passage of the banknote through the slot of the device, it is exposed to the physical effects of special sensors that analyze its response to a specific physical impact. The response is generated by specific security elements of the banknote - embedded structures (threads, fibers, strips), drawings and inscriptions, applied with paints that are sensitive to a certain type of radiation (ultraviolet and infrared) and magnetic effects. In addition, semi-automatic detectors use sensors that determine the quality of paper, as well as spectral analyzers that allow you to determine the composition of the ink. The main sensors that are equipped with semi-automatic detectors are infrared sensors; ultraviolet sensors; magnetic sensors; spectral analyzers.

Portable semi-automatic banknote detectors with the ability to check magnetic and ultraviolet security elements are known in the art. The use of magnetic and ultraviolet detection sensors in such devices gives a good result for determining the authenticity of banknotes, however, it does not allow determining the authenticity of banknotes with high accuracy, since such security features have long been counterfeited.

The prototype of the utility model is a portable semi-automatic banknote detector described in US patent US 5915518 A (publication date 06/29/1999). The known device comprises a housing, a slot for a banknote wire, a panel with display status indicators, genuine or fake banknote, ultraviolet sensors, a central processor main board for processing received signals from detection sensors. However, this device does not allow checking banknotes for the presence of a protective anti-Stokes element, and therefore has a low level of reliability of checking the authenticity of banknotes.

Labels with anti-Stokes luminescence are based on the use of special paints containing anti-Stokes phosphors. Anti-Stokes phosphors are powder materials activated by compounds based on oxides, fluorides, oxysulfides and oxychlorides of yttrium and some other elements, and are designed to convert long-wave infrared radiation (1.5-1.6 μm) into short-wave (0.8-1 , 02 μm) and an IR range of 0.9-1.07 μm into visible light of various colors. These phosphors can be effectively used for marking microobjects.

Typically, IR cameras or IR visualizers and an appropriate illuminator are used to detect IR anti-Stokes luminescence. In this case, the detection is made by visual observation of luminescence radiation on the screen (RU 2379194 C1, RU 2010142292 A, RU 21453 U1, RU 55140 U1). These anti-Stokes radiation detection solutions require operator participation, which does not allow the use of these solutions in banknote authentication devices in which authentication is performed automatically. In addition, this technology cannot be used in manual semi-automatic banknote authentication devices due to the fact that due to the small size of such devices, it is impossible to use IR video cameras and a full screen.

The objective of the utility model is to develop a portable semi-automatic device for checking the authenticity of banknotes having a high level of reliability of checking the authenticity of banknotes. This problem is solved through the use of infrared sensors for detecting anti-Stokes security elements in a portable semi-automatic banknote authentication device.

Utility Model Essence

To solve this problem, a portable semi-automatic banknote authentication device containing a panel of banknote verification status display indicators, a banknote passage slot, a central processor main board, additionally contains IR sensors for detecting anti-Stokes security elements located on the left and right sides of the banknote slot. Moreover, the infrared detection sensors include emitting infrared sensors and receiving infrared sensors. When the banknote passes through the slot, the glow of the protective anti-Stokes element, which occurs due to the irradiation of the protective anti-Stokes element with a radiating IR sensor, is detected by the receiving IR sensor. The receiving IR sensor transmits a signal to the main board of the central processor, which detects the presence or absence of protective anti-Stokes elements on the banknote.

The technical result is to increase the reliability level of banknote authentication in portable semi-automatic banknote authentication devices.

Brief Description of the Drawings

In FIG. 1 shows an exemplary embodiment of a semi-automatic detector case.

In FIG. 2 shows an exemplary embodiment of a bill passage slot according to a utility model.

In FIG. 3 shows a connection diagram of anti-Stokes security tags detection sensors.

In FIG. 4 illustrates a graph of the glow of anti-Stokes security labels during operation of the detection sensors.

Utility Model Implementation

Next, a utility model will be described in detail with reference to the accompanying drawings.

After the banknote (5) is fed into the banknote passage slot (12), the banknote (5) falls into the control zone of the switch-on sensor (4), which detects the filed banknote (5) and sends a signal to the main board of the central processor (15). The main board of the central processor (15) includes sensors for detecting anti-Stokes protective elements on the left (6) and right (7) sides of the slot (12), an ultraviolet sensor (10) and a magnetic sensor (8).

The banknote passage slot (12) has sequentially arranged authenticity banknote detection sensors, anti-Stokes security elements detection sensors (6, 7), an ultraviolet security feature detection sensor (10) and a magnetic protection detection sensor (8).

If protective anti-Stokes elements (special element I) (103) are detected on the banknote (5), the central processor issues a YES command, and an indicator (for example, a green check mark) corresponding to the yes status lights up on the display panel of the banknote verification status indicator, which Means the security features match the reference value.

If the anti-Stokes protective elements (special element I) (103) are not detected on the banknote (5), the central processor issues a NO command, and an indicator (for example, a red X) corresponding to the “no” status lights up on the display panel of the banknote verification status display, which means the mismatch of the security features to the reference value.

Depending on the specific implementation of the utility model, instead of a panel of indicators for displaying the banknote verification status, a display may be used with the ability to describe the detailed reason for rejecting the banknote (MG, UV, anti-stokes).

All modules realizing the detection of anti-Stokes security tags can be either integrated on the main board of the central processor (15) or separately located depending on the design of the utility model.

To check banknotes in two possible orientations, the semi-automatic detector has two IR pairs (a pair is one IR-emitting sensor (102) and one IR-receiving sensor (101)) of anti-Stokes security elements on both sides of the banknote passage slot (12) (on the left side of the slot (3) and on the right side of the slot (2)): a sensor for anti-Stokes protective elements on the left side of the slot (6) and a sensor on the right side of the slot (7).

To irradiate the protective elements, an infrared laser with a wavelength of 980 nm and infrared LEDs with a wavelength of 940 nm can be used. Both solutions allow the use of such systems in semi-automatic detectors, as they have small dimensions and high reliability.

If the proposed device uses laser technology for detecting anti-Stokes protective elements, a laser source of exciting radiation is used as the emitting 102 IR sensor, and a photo detector with an additional collecting optical system (lens) is used as the receiving 101 sensor. The laser source of the exciting radiation is a semiconductor laser with a radiation wavelength of 980 nm. Laser radiation focuses in a small spot. The photodetector is made on a phototransistor, to which the radiation emitted by the anti-Stokes protective element from the focus point of the laser source is collected using a collecting optical system.

In the case of the application of the laserless technology for detecting anti-Stokes protective elements in the proposed device, a standard laserless IR sensor with a wavelength of 940 nm is used as the emitting 102 IR sensor. In this case, the radiation of such an IR sensor, as well as in the case of using a laser, activates the glow of the anti-Stokes protective element. The use of laserless technology does not require additional optics (lenses) on the receiving 101 IR sensors to amplify and focus the reflected radiation.

When a banknote passes through slot (12), at the moment when the protective anti-Stokes element (special element I) (103) falls into the irradiation zone with an emitting IR sensor (102), the phosphors of the protective anti-stokes element (special element I) are excited (103), which accompanied by the glow of the phosphors of the protective element.

The induced glow is detected by the receiving IR sensor (101). This is shown in the graph from point 201 to point 202. When the excitation (glow) of the protective anti-Stokes element (special element I) (103) reaches its maximum (point 202), the emitting IR sensor (102) is turned off. After turning off the emitting IR sensor (102), the process of damping the glow (points 202-203) begins, which is detected by the receiving IR sensor (101) immediately after turning off the emitting IR sensor (102). During the damping of the glow (points 202-203), measurements are made by the receiving sensor (101). The received information (signal) is fed to the sensor board (105), which amplifies the signal to the desired amplitude and transfers it further to the main board of the central processor (15) for processing. The central processor processes the received signal and gives a final result about the presence or absence of a protective anti-Stokes tag (special element I) (103). The central processor processes the obtained data by comparing the received signal delta (the parameter obtained from the measurements taking into account the amplitude and attenuation time at each measurement point) with the reference signal value, which is stored in the non-volatile memory of the central processor.

Such a solution using sensors of anti-Stokes detection of the security element allows to increase the degree of reliability (accuracy) of checking the authenticity of banknotes.

List of reference numerals of the attached drawings

1. The body of the device of a semi-automatic detector

2. The right side of the slot

3. The left side of the slot

4. Switch on (detection of filed banknote)

5. Banknote

6. Sensor for detecting anti-Stokes elements of the left side of the slot

7. Sensor for detecting anti-Stokes elements on the right side of the slot

8. Sensor for detecting magnetic protective elements

10. UV protection detection sensor

12. Banknote slot

13. The panel of indicators for displaying the status of checked banknotes

15. CPU board

101. Receiving IR sensor

102. Radiant IR sensor

103. Special Element I

105. Sensor Board

201. The start point of the excitation (glow) of the protective special element AND

202. The peak point of the excitation (glow) of the protective special element And

203. The point of complete attenuation of the glow of the protective special element And

Claims (1)

A portable semi-automatic banknote authentication device comprising a banknote passing slot, a banknote verification status display indicator panel, a central processor board, characterized in that it further comprises IR sensors for detecting anti-Stokes security elements including IR-emitting sensors and IR-receiving sensors; moreover, the infrared detection sensors are located on the left and right panels of the passage of banknotes; moreover, the signals characterizing the measurement information are transmitted from the receiving IR sensors to the main board of the central processor for processing, which detects the presence or absence of protective anti-Stokes elements on the banknote.

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