RU15040U1 - DEVICE FOR CONTROL OF AUTHENTICITY OF BANKNOTES - Google Patents

Description

Banknote authentication device

The invention relates to the field of technology for image recognition, and more particularly to devices for verifying the authenticity of paper money, securities and various documents. It can be used in the development and creation of devices that can determine the authenticity of banknotes, the image on which is printed with ink, which allows you to create a composition of infrared tags (IR tags).

The proposed utility model is a viewing currency detector. It is designed to verify the authenticity of banknotes by detecting IR tags. These are image sections made by metamer printing.

A device for controlling the authenticity of documents is known, comprising a radiation receiver connected to a power source. moreover, an electron-optical filter and an objective are used as a radiation receiver, the focus of which is the screen of the electron-optical converter, in addition, it contains a built-in infrared radiation source connected to a power source (see, for example, certificate for utility model of the Russian Federation No. 11619 according to class G 07D 7/00 for 1999) 1.

The disadvantage of this device is the inconvenience of use, which consists in the need to consider the checked documents or banknotes through the eyepiece, which leads to rapid eye fatigue when the operator is working.

A known detector designed to determine the authenticity of banknotes by detecting IR tags; containing a monitor connected to a power source and an infrared source electrically connected to it and between each other and a video camera with an infrared optical filter (see MINOR brochure, Budapest, Hungary, 1989, p. 1.2). 2.

Disadvantage: a known device 2 is inconvenient in working with it, consisting in the need to place the banknote being verified in a viewing area limited in area, which is located directly under the video camera mounted vertically. Such an arrangement of the video camera and the source of infrared radiation limits the viewing area and complicates the visual control of several banknotes simultaneously.

The task to which the utility model is directed is to increase the convenience when working with the proposed device.

The technical result from the use of the utility model is to increase the viewing area and the ability to visually control under any ambient lighting, both one banknote and a banknote fan, while maintaining a high quality check.

The above technical result is achieved due to the fact that in the device for checking the authenticity of banknotes containing a monitor connected to a power source and an infrared emitter and a video camera with a solid lens angle of 10 ° 70 ° electrically connected to each other, in front of which an infrared optical filter is installed, according to the proposal, the video camera and infrared emitter are installed at an angle of 10 ° -70 ° to the vertical axis, and the infrared emitter is made in the form of clusters consisting of infrared LEDs odes.

The utility model is illustrated by drawings, where:

In FIG. 1 shows a block diagram of a device;

Figure 2 is a front view of the device;

In Fig.Z - section aa in Fig.2;

Figure 4 shows the visible areas in the infrared rays of the images on the front side of the Russian rubles 1997 release;

In Fig.3 is a General view of the workplace for authenticating banknotes.

The device for authenticating banknotes includes a video camera 1 with a solid lens angle of 10 ° -70 °, a monitor 2, an infrared emitter 3 in the form of two clusters 4 and 5, consisting of a set of infrared LEDs 6 mounted on a board 7, an infrared optical filter 8 and a power source 9, which are housed in a housing 10 having a base 11, a back cover 12 and a front wall 13c with windows 14 and 15 for the video camera 1 and monitor 2.

The viewing zone 16 is located outside the device and is designed to accommodate monitored banknotes 17.

The device operates as follows:

Money banknotes 17 or other documents to be verified that have RJ tags in the form of a section of images made by metameric printing are placed on the desktop in the viewing area 16. At the same time, the banknotes 17 being checked are illuminated using clusters of 4.5, i.e. . groups of lighting devices in the form of IR LEDs 6. Reflected infrared radiation freely passes through the RTK filter 8, while the visible spectrum is absorbed by it and enters the lens of the video camera 1 with a solid angle of the lens. Izobra; Infrared tags are transmitted to monitor 2.

A video camera 1 with a solid angle of the lens 10 ° -70 and infrared emitter 3 are installed at an angle to the vertical axis, which allows you to check banknotes 17 in the viewing area 16.

Thus, visual control is performed under any lighting conditions, both of one banknote and of banknotes laid out in a fan.

The proposed utility model allows to increase the convenience in verifying the authenticity of banknotes, while maintaining a high quality of verification.

Claims (1)

A device for checking the authenticity of banknotes, comprising a monitor connected to a power source and an infrared emitter and a video camera with a solid lens angle of 10-70 ^o connected to a power source, in front of which an infrared optical filter is installed, characterized in that the video camera and infrared emitter are installed coaxially -collinear at an angle of 10-70 ^o to the vertical axis, and the infrared emitter is made in the form of clusters consisting of infrared LEDs.