Method for protection of funds and documents from forgery

FIELD: forgery protection and authenticity control of documents.

SUBSTANCE: method includes using an indicator in form of two open spirals in form of an evolvent. Also transformation is performed using sensor of generator electromagnetic emission to electric voltage, in the sensor frequency is altered with following comparison to measurement results standing for authentic funds and/or documents.

EFFECT: higher protection level.

7 cl, 2 dwg

 

The invention relates to the field of controls, namely authentication, securities and documents, and can be used for authentication of securities and documents, performed on solid media, namely, Bank documents, stocks, credit cards, banknotes and documents.

Further, when the characteristic of the proposed method will use the term "hologram generator" in the context of this application, describing the location on the hard copy of MicroStrategy creating their refreshing source of optical radiation hologram.

Known (DE, application 1447851, 1967) way of protection against forgery of securities and documents by placing in their polymer or cellulose-paper transparent thread or tape with subsequent visual determination of the presence of the specified thread or tape media.

The disadvantage of this method should recognize the ease of introduction into the material of the carrier or sticking to him like a transparent thread or ribbon.

Also known (Jp, application 57-177372, 1987) way of protection against forgery of securities and documents by posting on their polymer or cellulose-paper magnetic labels with successive reading when testing the presence of these marks on the media.

The disadvantage of this method should recognize the ease nanese the Oia media these labels, which leads to ease of falsification of securities and documents.

The closest analogue of the proposed method can recognize (RU, patent 2185662, 2002) way of protection against forgery of securities and documents by posting on their polymer or cellulose-paper generator hologram with subsequent visual identification of its presence in the authenticity control of securities or document.

The disadvantage of this method should recognize its low reliability due to the use of subjective visual inspection.

The technical problem to be solved by the proposed technical solution is the development of a new method of protection of securities and documents from forgery.

The technical result obtained by the implementation of the proposed method is to improve its reliability, which increases the degree of protection of securities and documents from forgery.

To achieve the technical result of the proposed pre-placed on a solid medium (the basis of document or securities) generator holograms is shown in figure 1, and the generator is made of a metal foil (silver, palladium, titanias, aluminum and so on), and to control the authenticity of the hologram is proposed to use a control device containing located in the housing of the power source, amplifier, a display unit, a generator of electromagnetic radiation, the stabilizer power supply and the sensor, and the sensor is made in the form of two open spiral curves in the form of evolvent, the power source is connected to the stabilizer, the outputs of which are connected to the generator, an amplifier and a display unit, the generator output is connected to both coils of the sensor, the sensor output on both coils simultaneously connected to the generator and the input of the amplifier, the amplifier output is connected to the display unit, with the end surface of the body is slit aperture located between helices for media hologram generator. Preferably the spiral is made of copper or silver, and their alloys. In the base case, the generator is usually made with the possibility of generating electromagnetic radiation with a frequency of 30-300 MHz, and the amplifier is made with a bipolar transistor p-n-p type with a gain of 100 to 500. Usually the display unit using any indicating device, in particular type M with current full deflection 200-500 microamps. Solid media securities or document is preferably made of a cellulose material or plastic.

During the development of the method was experimentally found that when placed between sleep what Alami above described device solid media with hologram generator, shown in figure 1, there is a sharp decrease in the magnitude of the electromagnetic field between the coils of the device is significantly greater than changes in said electromagnetic field at the introduction of similar solid carriers, but without the specified generator hologram or similar media, but with a different hologram generator.

The principle of operation used to implement the method of the device consists in the conversion using the sensor, made in the form of two open spiral curves in the form of evolvent, electromagnetic radiation generator voltage. The design of the specified sensor on the effect of the coil N. Tesla, the sensor is made in the form of two open spiral curves in the form of evolvent, is an open path that allows you to create a broadband sensor with measurement capability as possible in a wider range of frequencies. Connect the output of the sensor at the same time to the generator and amplifier allows you to create feedback for more accurate and rapid measurement parameters. Calibration of the proposed device is produced in the usual way using gastromony devices and standard sample holders of securities and documents bearing the hologram generator, and the ez.

The block diagram of the device is represented in figure 2, with the following notation is used: power supply 1, the stabilizer power supply 2, a generator 3, a sensor 4, the amplifier 5, the display unit 6.

Constructively in the baseline implementation used device is a casing of rectangular shape, the end surface of which is made a slot for introduction of the sample securities or document. Spirals are placed in the housing on either side of said hole. On the side of the building there is the indication (output analogue or digital device). The remaining elements of the device are also located in the building.

In the base case, the proposed method is implemented as follows. On solid media, securities or document paste generator of the hologram shown in figure 1. If necessary authentication of the presented document or securities section of the media hologram generator is placed in a slot of the housing and include the device used. The power source 1 supplies the input of the regulator 2 voltage 9 C. outputs of the stabilizer 2 to the input of the generator 3 receives a voltage of 5 V to the input of amplifier 5 3±1.5 In and to the input of the display unit 6 from 0 to 5 C. With the output of the generator 3 on both the spiral sensor 4 receives e is tricocci potential of about 3-5 In frequency from 3 to 300 MHz. From the coils of the sensor 4 to the generator 3 and the amplifier 5 receives the signal characterizing the electromagnetic radiation from the generator 3. The value specified via the amplifier 5 is supplied to the display unit 6. Then helices placed the region at the media without hologram generator and compare the results. In the case of a significant (and more) differences of values of the first and second measurement instrument or securities recognize genuine.

It is also possible to determine in advance the size of the device response to the introduction of helices region of the medium without hologram generator and recognition of the values obtained for a reference point. This option is the most convenient for serial studies (authentication of Bank or credit cards or passes).

Using the proposed method allows you to quickly and reliably verify the authenticity of securities and documents.

1. The way to protect valuable papers and documents from forgery, including preliminary location on a solid carrier generator hologram with subsequent control, characterized in that the hologram generator provides obtaining holograms is shown in figure 1, and the control of the authenticity of the hologram is carried out by placing it in the control device, containing situated in the body the source of the IR power amplifier, a display unit, a generator of electromagnetic radiation, the stabilizer power supply and the sensor, and the sensor is made in the form of two open spirals in the form of evolvent, the power source is connected to the stabilizer power supply, the outputs of which are connected to the generator of electromagnetic radiation, an amplifier and a display unit, the output of the generator of electromagnetic radiation connected to both coils of the sensor, the sensor output on both coils simultaneously connected to the generator of electromagnetic radiation and the input of the amplifier, the amplifier output is connected to the display unit, with the end surface of the body is slit aperture located between helices for media hologram generator.

2. The method according to claim 1, characterized in that the generator of a hologram made of a metal foil.

3. The method according to claim 2, characterized in that use silver, or palladium, or titanium, or aluminum foil.

4. The method according to any one of claims 1 to 3, characterized in that the spiral is made of copper or silver.

5. The method according to any one of claims 1 to 3, characterized in that use a generator, arranged to generate electromagnetic radiation with a frequency from 3 to 300 MHz.

6. The method according to claim 5, characterized in that use power, custom-made bipolar the m transistor p-n-p type with a gain of 100 500.

7. The method according to claim 1, characterized in that the generator of the hologram is applied to the medium from pulp and paper material or plastic.



 

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