JPH0546841A - Counterfeit paper money discrimination device - Google Patents

Abstract

PURPOSE:To improve the reliability of the discrimination of truth and to reduce cost by detecting the unevenness of ink, a contained carbon component, a pigments component, a metallic component and the quality of paper with a waveform through the use of an infrared ray sensor and collating it with the waveform of a real note stored previously. CONSTITUTION:When a paper money is inserted into an insertion path, a start switch is turned on and a driving motor is started. The mechanism of a transmission system is driven and the bank note passes through a transmission path at prescribed speed. The infrared ray sensor scans the unevenness of ink in the bank note, or the contained carbon component, the pigments component, the metallic component and the quality of paper at width more than 2mm of an irradiation surface in the center of a longitudinal direction with the passage, and catches them in terms of analog so as to transmit the signal to a memory. The memory checks whether the bank note agrees with the type of the bank note and the waveform applied to the type based on the transmitted signal. Namely, a waveform B does not agree with the waveform A of a real note in the case of a counterfeit paper money, and errors occur in the waveform B for respective counterfeit paper moneys.

Description

The present invention relates to a counterfeit bill discriminating apparatus, and more particularly to a counterfeit bill discriminating apparatus which is attached to an automatic vending machine, a currency exchange machine, a game machine or the like and discriminates the authenticity of inserted bills.

 [Prior art] Generally, all banknotes of each country, including Japan, are manufactured and maintained by intaglio printing, and the numbers and features of this intaglio printing press are all under the control of the United Nations. In undeveloped countries and developing countries, we are relying on the countries that own the intaglio printing machines because they lack the economic and purchasing power. In addition, conventionally, the authenticity of banknotes in vending machines and the like is detected by a method of detecting minute magnetism contained in banknotes, but this magnetic detection method adjusts the density by magnetic copy, If you cut it to the same size, you can use the counterfeit bill, and because it uses alternating current, the output changes with the change in speed, and its output is also very small. Furthermore, since it is vulnerable to noise, a noise countermeasure circuit, a widening circuit, etc. are required, which easily causes malfunctions and is expensive, and even if the same banknote is used, the output waveform fluctuates each time, and the same It was unreliable because it could not be obtained, and a judgment was made as to whether or not a magnetic substance was included. In other words, it will be possible to manufacture counterfeit bills that correspond to machines with such ease.

 [Purpose of the Invention] The present invention has been made by paying attention to the above-mentioned conventional problems. By solving the problems, the reliability is further increased, and unmanned transactions such as vending machines that are stagnant in each country. The purpose is to provide a counterfeit bill discriminating device that can further popularize the system.

 [Means for Solving the Problem] In order to achieve this object, the counterfeit bill discriminating apparatus according to the present invention has an infrared sensor for scanning the center in the longitudinal direction with a width of 2 m / m or more on the irradiation surface, and the unevenness of ink. Or contained carbon component. It is characterized by activating the accepting and returning mechanism by detecting the pigment component, metallic content, and paper quality, and matching them with a memory device that has been stored in advance in the form of a true bill.

 [Operation] With the above-mentioned configuration, the printing method of banknotes that is not possible in the private sector is utilized, so that the unevenness of the ink and the carbon component contained in the ink. An infrared sensor that has a width of 2 m / m or more on the irradiation surface of the pigment component, metal component, and paper quality scans the center in the longitudinal direction to detect the waveform, and it is possible to check the waveform with the memory and determine whether it is true or false. No need for a noise circuit or a complicated amplifier circuit, and because the output is DC, it can respond to changes in speed and can be supplied at a low price.

 [Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

 FIG. 1 is a vertical sectional view of a counterfeit bill discriminating apparatus embodying the present invention, FIG. 2 is a horizontal sectional view, FIG. 3 is an infrared sensor circuit diagram, FIG. 4 is a circuit block diagram, and FIG. 5 is an infrared sensor. The surface waveforms of the two thousand-yen bills (genuine bills) shown in Fig. 6A to 6C are waveform diagrams and magnetic copies when the genuine bills are inserted with the detection points of the infrared sensor shifted from the center. It is a comparison with the waveform chart used. In these figures, 1 is a box-shaped lower casing having an opening on the upper surface, and 2 is a lid-shaped upper casing that matches the size of the lower casing 1. A drive motor 3 for forward and reverse rotations is housed in a substantially central portion of the lower casing 1, and a worm gear 4 is attached to a tip portion of a drive shaft 3a of the drive motor 3. The worm gear is designed to rotate a drive shaft 5 which is erected between the left and right side walls of the lower casing 1 in mesh with a worm wheel 6. The drive shaft 5 has a worm wheel 6 and one toothed roller 7.7 attached thereto so as to rotate coaxially. The roller 7.7 is located in front of the lower casing 1 and has the same height between the left and right side walls. The toothed endless belt 10 is wound around the rollers 9.9 mounted on the roller shafts 8 arranged in parallel. On the other hand, auxiliary roller shafts 11.12 are installed at positions corresponding to the first and second roller shafts 5.8 of the upper casing 2, and the roller shafts 11.12 have rollers 7.7 and 9 respectively. Auxiliary roller 13.14 is attached so as to be substantially in contact with the .9, and inserts such as bills described later are sandwiched and conveyed.

 A lower inner panel 15 is attached above the lower casing 1, and bills and the like are inserted at the front end thereof. A return guide panel is bent and extended, an upper inner panel 16 is also attached below the upper casing 2, and an insertion or return guide panel is bent and extended at the front end to insert or return bills or the like. A passage 17 is formed, and the insertion or return passage 17 penetrates the inside to form an outlet passage 18 which communicates with the bill storage portion in the rear.

Further, a printed circuit board 19 is accommodated in the upper casing 2, and the printed circuit board 19 has unevenness due to ink of various banknotes, or contains carbon components. A memory IC 20 that stores the pigment component, metal component, and paper quality is mounted, and an infrared sensor 21 is mounted on the back surface. The upper and lower casings are supported by the syndji shaft 22 which is installed between the left and right side walls of the casing, and can be opened by removing the lock lever 23.

 In the case of this embodiment, the infrared sensor scans the center of the banknote in the longitudinal direction with a width of 2 m / m or more on the irradiation surface. It is arranged to detect the pigment component, metal component, and paper quality, and only one unit is installed.However, multiple units may be arranged so that they can be detected near the ends or on the back side. Alternatively, a plurality of columns may be arranged and the set data may be collated by the memory IC 20. Further, 24.24 is a guide pin for preventing the withdrawal of bills, and when a solenoid is used and it is judged that the bill is a genuine bill, it is operated and inserted. Close the return route 16.

 Reference numeral 25 is a start ON-OFF switch using light, and the infrared sensor 21 has a circuit configuration shown in FIG. 3. The light emitting diode 21a and the light emitted from the light emitting diode 21a are reflected on a target object such as a bill. It is combined with a phototransistor 21b that receives and receives light, and VM is set to be equal to or higher than the input impedance IMΩ and may be removed except during the test.

 The counterfeit bill discriminating apparatus according to this embodiment is configured as described above. When a banknote is inserted into the insertion or return path 17 while being pressed against it, the starter ON-OFF switch 25 is shielded from light at one end of the inserted banknote and is turned on to start the drive motor 3.

When the drive motor 3 is activated, the mechanism of the transport system is driven to feed the bill at a predetermined speed, and the infrared sensor 21 causes the ink of the bill to be uneven or contain carbon components as the bill passes. The pigment component, the metal component, and the paper quality are scanned with the width of the irradiation surface of 2 m / m or more in the center of the longitudinal direction and are captured in an analog manner, and the signal is sent to the memory IC 20, and the memory IC 20 is based on the sent signal. Identify the types of banknotes and whether they match the waveforms that apply to them. If they match, the bill is sent as a genuine bill to the appropriate storage portion via the exit 18, and the guide pins 24.24 are operated to prevent the bill from being withdrawn. When the bills have completely passed, the drive motor 3 is stopped and the operation ends. If the signal from the infrared sensor 21 does not match in the memory IC 20, a signal is output from the memory IC 20, the drive motor 3 reverses, the transport system mechanism is reversed, and the signal is sent back from 17. In this case, the alarm may be given by lighting the lamp or attaching a buzzer.

Figures 6A to 6C show the waveforms of experiments conducted using a 1,000-yen bill and its copy with the detection point of the infrared sensor shifted from the center, where A is the true bill and B is the magnetic copy (counterfeit bill). The waveform is shown. In the case of the true bill, almost the same waveform is obtained by three times of experiments, but in the case of copying, there is a large difference in each time, and since it does not match the waveform of the true bill, the reliability of this device is high. I know the height of.

 [Effects of the Invention] As described above, according to the counterfeit bill discriminating apparatus according to the present invention, the reliability thereof is extremely high, and it is impossible to manufacture counterfeit bills to deal with the counterfeit bills. In addition, it is not necessary to add noise circuits and amplification circuits, and the infrared sensor and memory can be made simple so that the cost can be reduced and the failure rate is low. Furthermore, it can be used in various countries by changing the memory contents, making it extremely versatile.

[Brief description of drawings]

 1 is a longitudinal sectional view of a counterfeit bill discriminating apparatus embodying the present invention, FIG. 2 is a transverse sectional view, FIG. 3 is a circuit diagram of an infrared sensor, FIG. 4 is a circuit block diagram, and FIG. 5 is a circuit diagram of an infrared sensor. Surface waveforms of one thousand yen bill (true bill) Figures 6A to 6C show waveforms obtained by inserting the true bills with the detection points of the infrared sensor shifted from the center, and the waveforms obtained using magnetic copy. It is a comparison with the drawing 1 ... Lower casing 2 ... Upper casing 3 ... Motor, 3a Motor shaft 4 ... Worm gear 5 ... Drive shaft 6 ... Worm wheel 7 ... Toothed roller 8 ... Roller shaft 9 ... Roller 10 ... Toothed endless Belt 11 ... First roller shaft 12 ... Second roller shaft 13 ... Auxiliary roller 14 ... Auxiliary roller 15 ... Lower inner panel 16 ... Upper inner panel 17 ... Insert Or return path 18 ... bill Detchi 19 ... printed circuit board 20 ... memory IC 21 ... infrared detecting sensor 22 ... Shinji shaft 23 ... lock lever 24 ... guide pin 25 ... start switch ON / OFF

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[Procedure amendment]

[Submission date] Flat. 2.5.29 (1) The claims of the present application are amended as shown in a separate sheet. (2) Correct the description as "center in the longitudinal direction" on page 3, line 7 to line 8 of the present specification as follows. Note: "At least the center in the direction of the longitudinal line" (3) Correct "Metallic component" on page 9, line 9 to line 10 as follows. Note "Metal component" (3) Correct the following description on page 3, line 18, "center in the longitudinal direction". Note: "At least the center in the direction of the longitudinal line" (4) Correct the "center" on page 12, line 12, as follows. Note: "Center" (5) Correct the "Center in the longitudinal direction" on page 16, line 16 to line 17, as follows. Note: "At least the center of the longitudinal direction" (6) Correct the "center of the longitudinal direction" on page 8, line 6 of the same as follows. Note: "At least the center of the longitudinal straight line"

[Claims]

1. An infrared sensor (wavelength 60) which scans at least the center of the irradiation surface with a width of 2 m / m or more in the longitudinal linear direction.
0 nm to 1,040 nm), the unevenness of the ink, the contained carbon component, the pigment component and the metal component, and the paper quality are detected by a waveform, and the result is compared with a memory device stored in advance as a true waveform to accept. A counterfeit bill discrimination device characterized by activating a return mechanism. ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] Flat. 2.7.30 (1) From page 6, line 20 to page 7, line 2 of the specification of the present application, "plural arrangements may be made so that detection can be performed near both ends or on the back side, and in that case, the arrangement is horizontal. "One or more rows in a row" is corrected as follows. Note: It is also possible to arrange the front and back surfaces at multiple positions at arbitrary positions to detect the waveform. Also, it may be used alone or in combination with these, but the unevenness of ink due to intaglio printing,
Use a pickup sensor etc. to detect width, presence, etc. ”─────────────────────────────────── ───────────────────

[Procedure amendment]

[Submission date] Flat. 2.12.18 (1) The claims of the present application are amended as shown in a separate sheet. (2) "Name of device" on page 1, line 2 of this specification
Correct the following as follows. Note: "Title of invention" (3) Amend "Paper quality" on page 10, line 3 of the same paragraph as follows. Note: "Paper quality" (4) Correct "Paper quality" on page 17, line 3 of the same as follows. Note: "Paper quality, etc." (5) Correct the description of "various banknotes" on page 6, line 8 of the same as follows. Note: "For various genuine bills" (6) Correct "Paper quality" on line 6, page 6 of the same page as follows. Note: “Paper quality” (7) Correct “paper quality” at line 19, page 6 of the same page as follows. Note "Paper quality, etc." (8) Correct "ON-OFF switch" on page 7, line 8 and line 8 as follows. Note "It is an ON-OFF switch, and the switching sensor may have the characteristics of a reading scanner that recognizes the pattern of bills when the mechanism is activated." Correct the following as follows. Note "Paper quality, etc."

[Claims]

Claims (1)

[Claims] 1. An infrared sensor (wavelength 600 nm to 1040 nm) that scans the center in the longitudinal direction with a width of 2 m / m or more on the irradiation surface, and has unevenness of ink or a carbon component. A counterfeit bill discriminating device characterized in that it detects the pigment component, the metal component, and the paper quality in a wavy form, and activates the mechanism for accepting and returning by matching it with a memory device that is stored in advance in the form of a true bill.