JP2003067806A - Method and device for deciding truth or falsehood of sheet paper or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for deciding the truth or falsehood of sheet paper or the like and its device capable of obtaining a higher elaborateness and making a correct answer rate close to 100% in a method for deciding the truth or falsehood of sheet paper or the like with light intervened. SOLUTION: In this method for deciding the truth or falsehood of sheet paper or like, wherein light by a light emitting element from one side is caused to emit to and transmit paper sheet or like traveled and carried along a carrying path from one side, a light receiving element of the other side receives the transmitted light of the light, and obtained data are compared with true data, a plurality of transparent light-transmitting resin members are provided laminatedly in front of the light receiving element, and light transmitting the sheet paper or the like is made to retransmit the light-transmitting resin members to be received by the light receiving element. In this device of deciding the truth or falsehood of the sheet paper or the like, wherein the light emitting element is disposed at one side and the light receiving element for receiving light transmitting the sheet paper or the like irradiated with light by the light emitting element is disposed at the other side while sandwiching the carrying path for traveling and carrying the sheet paper or the like, the plurality of transparent light- transmitting resin members are laminated on the light receiving element side along the carrying path.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet, a paper sheet printed with the paper sheet, and more particularly, to a method and apparatus for determining the authenticity of a bill.

[0002]

BACKGROUND OF THE INVENTION Conventionally, in an automatic vending machine, a money changer, an automatic lending machine, etc., the authenticity and denomination of an inserted bill are checked along a carrying path following the bill insertion slot. An authenticity determination device (system) for unloading and discharging this is provided.

Initially, the authenticity determination of the bill was as simple as checking the presence or absence of magnetism distributed in a specific area of the bill, so that the authenticity determination could be easily cleared. Therefore, in recent years, in addition to magnetism, watermarks, images, embossing for the visually impaired, etc. are also checked, and light of a specific frequency is used as a medium, including printing ink used, and comparison with genuine data is performed. Are performed.

Furthermore, recently, there is an increasing need to judge the authenticity of not only Japanese currency bills but also various foreign currency bills. The utility of using ultraviolet light having a specific frequency has become clear.

[0005]

However, at the present time,
Although the correctness of the judgment of the authenticity of paper sheets, especially banknotes, through light is not 100%, it cannot be said that it is 100%, and it is also necessary to check foreign banknotes using ultraviolet rays. There was also a situation in which the banknotes were overlooked due to the roughness of, and conversely, genuine banknotes were flipped as banknotes.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention is based on the conventional situation described above.
It was made by paying attention to the problems, and in the method and the device for judging the authenticity of paper sheets with the interposition of light by solving such problems, it is possible to obtain further elaboration. It is an object of the present invention to provide a method and apparatus for determining the authenticity of a paper sheet, which is capable of making the determination correct answer rate closer to 100%.

[0007]

In order to achieve this object, a method for determining authenticity of a paper sheet according to the present invention uses a light emitting element from one side for a paper sheet that is traveling and conveyed along a carrying path. In the authenticity determination method for paper sheets, in which light is transmitted and received, the transmitted light is received by the light receiving element on the other side, and the obtained data is compared with the authentic one, a transparent element is provided before the light receiving element. It is characterized in that a plurality of translucent resin members are laminated and the light transmissive resin member re-transmits the light transmitted through the paper sheet and allows the light receiving element to receive the light.

Further, the paper sheet authenticity judging device according to the present invention sandwiches a carrying path for traveling and conveying the paper sheet, and the light emitting element is provided on one side and the paper sheet irradiated from the light emitting element is provided on the other side. In a paper sheet authenticity determination device in which a light receiving element for receiving transmitted light is arranged, a plurality of transparent light-transmissive resin members are provided on the light receiving element side along the above-mentioned carrying path, The above-mentioned translucent resin member is a plate member made of polycarbonate, the above-mentioned translucent resin member is a plate member made of an acrylic resin, and the above-mentioned light emitting device is an ultraviolet light emitting device. Is characterized by
The above-mentioned light emitting element is characterized in that it is surrounded by a resin wall for light shielding, and ultraviolet ray transmitting glass is fixed to the end portion of the resin wall.

[0009]

With the above-mentioned structure, the light emitted from the light emitting element and transmitted through the paper sheets is suppressed from being diffused by the transparent resin member, and the obtained data is sent to the light receiving element without leaking. You can do it in. Therefore, when light is used, especially when ultraviolet rays are used, the loss of energy due to the interaction with the substance that is the characteristic is suppressed, sufficient photon energy can be secured, and especially for bills and the like having a special configuration. In that case, it is possible to absorb this ultraviolet light and release the energy as a unique fluorescence, which can be used as delicate comparison data for authenticity judgment. As a result, the emitted fluorescence does not diffuse and the light receiving element Will be caught by.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing a main part of a paper sheet authenticity determination device embodying the present invention.

FIG. 1 shows printed paper sheets, which are the object of the present invention, as banknotes, and 1 in the drawing shows an insertion slot for the banknotes. Although not shown, an insertion detecting sensor of an optical system is provided in the vicinity of the insertion slot 1, and when a bill insertion is detected, a motor switch for activating a loading mechanism is input.

The insertion slot 1 is further provided with a carrying path 2 for traveling and carrying banknotes. The carrying path 2 is activated by the above-mentioned motor to sandwich the inserted banknote and send it inside. If a roll disc, belt, etc. are provided and the bill is recognized as a bill by the authenticity determination device, which will be described later, reverse rotation of the motor causes the roll roll, belt, etc. to be reversed, and the bill is recognized as the bill. The bills are unloaded and discharged from the insertion slot 1 to the outside.

Further, in this embodiment, the ultraviolet light emitting element 3 is fixed to the substrate 4 and is provided below the carrying path 2. On this substrate 4, the ultraviolet light emitting element 3 is surrounded,
A light-shielding wall 5 formed of ABS resin (acrylonitrile-butadiene-threne resin) for shielding light is provided.

Further, an ultraviolet ray transmitting glass 6 is fitted between the upper ends of the light shielding walls 5 and fixed with an adhesive, and the ultraviolet ray transmitting glass 6 is used to cover the upper surface of the ultraviolet ray transmitting glass 6. Is made flush with the lower surface of the transport path 2 so that the banknotes that are conveyed and slid are brought into closer contact with each other, and as much as possible, there is no influence of wrinkles or fold lines existing in the banknotes.

On the other hand, reference numeral 7 in the drawing denotes an ultraviolet light receiving element. This ultraviolet light receiving element 7 is fixed to the substrate 8 and is on the straight line orthogonal to the above-mentioned carrying path 2 and the above-mentioned ultraviolet light emitting element 3 is provided.
It is provided above the carrying path 2 at a position opposed to.

Below the ultraviolet light receiving element 7, there are three polycarbonate panel plates 9a.
9b and 9c are stacked and arranged. Polycarbonate is a relatively new thermoplastic resin, but transparent and
The Rockwell hardness is as high as R120, and the impact strength due to Izod is 90, which is the best impact resistance. in addition,
It has a special physical property that the heat resistance, electrical characteristics, and light transmittance are 93% or more, and the dimensional stability of the molded product is good, and the pelletized product is extruded or injected to make this polycarbonate.
The bone plates 9a, 9b, 9c are obtained.

In the present embodiment, the polycarbonate plate 9a, 9b, 9c is formed by stacking three sheets, but this is not the only option, and two or three or more layers may be formed. Good.

This laminated polycarbonate board 9a.
The lower surface of the polycarbonate plate 9a, which is the lowermost layer of 9b and 9c, is flush with the upper surface of the above-described carrying path 2 so that the banknotes can be conveyed accurately and smoothly.

That is, when a bill is inserted from the insertion slot 1 and conveyed along the carrying path 2, the bill is irradiated with ultraviolet rays from the ultraviolet light emitting element 3 from below. This ultraviolet ray passes through the ultraviolet ray transmitting glass 6 and the bill. When passing through the banknote, the ultraviolet rays are absorbed by elements such as paper quality, ink, watermark (straining), metal wire, and magnetic material that constitute the banknote, and emit a unique fluorescence. The fluorescent light and the ultraviolet light carrying the data are laminated on the polycarbonate film.
The authenticity of the bill is judged by transmitting the ultraviolet rays to the ultraviolet light receiving element 7 after passing through the bills 9a, 9b and 9c and comparing the data with the genuine one.

Before the ultraviolet ray receiving element 7 receives the ultraviolet rays and the peculiar fluorescence which have passed through the bills, the polycarbonate sheets 9a, 9b, 9c which have been laminated once are made to pass therethrough.
The dispersion and diffusion of light is suppressed, and even in the presence of extra daylight and electric light, they are removed due to the refractive index of the light. Information will be sent to the ultraviolet light receiving element 7. Further, the present invention is not limited to the paper money as in the embodiment, but can be applied to other paper sheets such as gift certificates, beer tickets, stock certificates, etc., and it is possible to transmit light other than polycarbonate. It is also possible to use a resin such as an acrylic resin plate. As for the arrangement, the ultraviolet light emitting element 3 may be on the upper side and the ultraviolet light receiving element 7 may be on the lower side, or the sheets may be inserted vertically and arranged side by side.

[0021]

The method and apparatus for determining the authenticity of a paper sheet according to the present invention is constructed as described above. Therefore, it is possible to further improve the accuracy of the authenticity determination of the paper sheet with the help of light and to make the accuracy rate close to 100%.

[Brief description of drawings]

FIG. 1 is a diagram showing a paper sheet authenticity determination device embodying the present invention.

[Explanation of symbols]

1 insertion slot 2 carrying routes 3 Ultraviolet light emitting element 4 substrates 5 Shading wall 6 UV transparent glass 7 Ultraviolet light receiving element 8 substrates 9a Polycarbonate board 9b Polycarbonate board 9c Polycarbonate board

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2G051 AA34 AB20 BA05 CA01 EA14                       EA23                 2G059 AA10 BB10 DD12 EE01 HH03                       JJ30 KK01 LL04 MM05 MM10                 3E041 AA01 AA03 BA08 BA09 BA13                       BB02 BB04 BB05

Claims (6)

[Claims] 1. A data sheet obtained by irradiating and transmitting light from a light emitting element from one side to a paper sheet traveling and conveyed along a carrying path and receiving the transmitted light by a light receiving element on the other side. In a method for determining the authenticity of a paper sheet by comparing the data with an authentic one, a plurality of transparent light-transmissive resin members are laminated in front of the light receiving element, and the paper sheet is transmitted through the light-transmissive resin member. A method for determining authenticity of a paper sheet, characterized in that the generated light is transmitted again and is received by a light receiving element. 2. A paper sheet having a light-emitting element on one side and a light-receiving element for receiving light emitted from the light-emitting element and transmitted through the paper sheet on the other side, sandwiching a carrying path for traveling and conveying the paper sheet. An authenticity determination device for a paper sheet, comprising a plurality of transparent translucent resin members laminated on the light receiving element side along the above-mentioned carrying path. 3. The authenticity determination device for paper sheets according to claim 2, wherein the translucent resin member is a plate material made of polycarbonate. 4. The authenticity determining device for paper sheets according to claim 2, wherein the translucent resin member is a plate material made of acrylic resin. 5. The authenticity determination device for paper sheets according to claim 2, 3, or 4, wherein said light emitting element is an ultraviolet light emitting element. 6. The authenticity of a paper sheet according to claim 5, wherein the light emitting element is surrounded by a light shielding resin wall, and ultraviolet ray transmitting glass is fixed to an end portion of the resin wall. Judgment device.