KR100807656B1 - A banknote identifying machine and banknote identifying method - Google Patents

Abstract

A banknote identifying machine and a banknote identifying method are provided to remarkably suppress misidentification and prevent the machine from being out of order by adjusting an ADC converter. A banknote identifying method includes the steps of: inputting a banknote through a banknote input supporting frame mounted on a front end of a body part(31); determining whether the inputted banknote is a new banknote or an old banknote(32); providing a scan image of a scanned banknote by scanning a surface of the banknote(33); compensating an error between scan images and pattern images(34); determining a kind of the banknote(35); determining a 10000-won banknote(110), a 5000-won banknote(120), or a 1000-won banknote(130) in the new banknote or the old banknote by comparing the scan images with the previously pattern images(36); and finally determining whether or not the inputted banknote is a counterfeit banknote by considering the determined result(37).

Description

Banknote recognizer and banknote recognition method using same {A BANKNOTE IDENTIFYING MACHINE AND BANKNOTE IDENTIFYING METHOD}

1 is a perspective view showing a state covered with a cover of the banknote recognizer according to the present invention.

Figure 2 is a perspective view showing a state in which the cover of the banknote recognizer according to the present invention opened.

Figure 3 is a schematic diagram showing a schematic configuration diagram of the banknote recognizer according to the present invention.

Figure 4 is a relationship diagram showing the operation of the banknote recognition method according to the present invention.

5a and 5b is an exemplary view showing a correction state of the XY deviation of the image image in the banknote recognizer according to the present invention.

Explanation of symbols on the main parts of the drawings

1: bill acceptor 2: main body 3: cover

10; Scanner 11: Light emitting lamp 12: Feed-in roller

15: transfer belt 16: detection sensor 17: light receiving sensor

18: USB connector 20: control unit 22: scanning device unit

23: bill transfer device 24: authenticity judgment 26: speed automatic control device

30: Operational relationship diagram 31: Banknote input stage 32: New and old ticket discrimination stage

34: Scanned image XY correction step 35: Banknote type determination step 36: Image contrast step

The present invention relates to a banknote recognizer for determining the authenticity of the banknotes installed in a banknote counter and various automatic vending machines, and to determine the type of banknotes for which the authenticity is determined, and a banknote recognition method using the same.

In more detail, it is divided into a main body portion in which the transfer device is installed and a cover portion in which the scanner is installed, and the cover portion is installed to open and close the main body portion, and a plurality of sensors are provided at regular intervals at the entrance of the main body into which the bill is inserted. Determining new and old banknotes, detecting the sensitivity of transferred banknotes, if the sensitivity information is over a certain amount, determine it as pneumatic, and scanning scanned banknotes (front or back) with a scanner to scan scanned patterns and patterns of banknotes already entered. After correcting the deviation in the XY coordinates with the image, the authenticity is judged by comparing their length and pattern, and the firmware for improving the performance or error is updated. And to provide a bill recognition method using the same.

Background Art [0002] Conventional banknote detecting apparatuses are known for determining and recognizing images as images, for collecting and determining color (RGB) distributions of banknotes, and for determining using infrared and ultraviolet wavelengths.

As a device for recognizing and discriminating as an image, there are known Korean Patent Publication No. 10-2003-8661, Patent Registration No. 10-142345, Patent Registration No. 10-605062 and Patent Registration No. 10-656179. The CCD camera photographs the bills and digitally displays the photographed images to determine whether the authenticity is compared with the reference (pattern) image already input.

However, a device for capturing the authenticity of a banknote by a CCD camera has a problem that a large space must be secured so as to completely capture a wide banknote by the CCD camera, and when the performance (pixel) of the CCD camera is deteriorated. There is a problem that can not easily determine the authenticity.

Domestic patent registration No. 10-464916 is known as a device for collecting and determining the color (RGB) distribution of banknotes, which collects the color (RED, GREEN, BLUE) distribution of banknotes and determines whether they are counterfeit. In order to prevent this, the authenticity of the collected data was determined by using the distribution of the differential values.

However, this is an extremely dangerous problem in that it is not recognized at all in the case of counterfeit maintaining the distribution of the differential value because it determines whether the counterfeit by collecting the color (RED, GREEN, BLUE) distribution of the bill.

As an apparatus for determining using infrared and ultraviolet wavelengths, Korean Patent Laid-Open Nos. 10-2001-90050, 10-2002-83122 and 10-2004-18332 are published. And Patent Registration No. 10-285318.

They detect ultraviolet rays or infrared rays (three or four lines) emitted by the light emitting lamp when banknotes pass between the ultraviolet or infrared light emitting lamps and the light receiving unit, and the light receiving unit detects the amount of light output from the light receiving unit and the already stored basic light amount (data) and Compared (contrast) to determine whether or not cough.

However, this can be easily manufactured banknote recognizer, but because the amount of information that can be extracted from the bill is very small, there is a problem that the accuracy of the recognition is significantly lowered, due to mechanical errors and deviations, a considerable degree of safety in recognition Will cause.

In addition, the longer the period of use, the lower the intensity of the infrared and ultraviolet region of its own, which causes a slight variation in sensitivity between newly issued banknotes and banknotes commonly used for more than a few months, even if the same type of paper. There is a problem that falls.

In addition, even if the sensor used in the bill reader does not use an expensive product, the sensitivity is lowered, which is a factor of misrecognition, and when this phenomenon is combined, there is a problem that the error is severely generated.

Another conventional banknote recognizer is a method using a magnetic head or a pattern of an infrared ultraviolet ray, a method using a magnetic head is a method for detecting the presence of dust by detecting a small amount of iron contained in the ink component of the banknote Because the iron component is detected very finely, there is a problem that the error is large as a sensor with low sensitivity, and there is a problem that a large number of misjudgment is generated. There is a problem that the original error occurs frequently.

In addition, the conventional banknote recognizer must be carried out after separating the mounting machine in the after-sales service, there is a problem that can not be easily carried out, as well as a professional engineer should be dispatched to the site directly to perform the repair: So there is a problem that takes a lot of repair costs.

The present invention is to provide a banknote recognizer and a banknote recognition method further improved to solve the above problems.

The present invention is divided into a main body portion in which the transfer device is installed and a cover portion in which the scanner is installed to install the cover portion so as to open and close the main body portion, and a plurality of sensors are installed at regular intervals at the inlet of the main body into which the bill is inserted. Determining new and old banknotes, and detecting penetrating amount of transferred banknotes, if sensitivity information is over a certain amount, it is judged as pneumoconiosis, and the scanned banknotes (front or back) are scanned with a scanner to compare the scanned image with the pattern image of already entered banknote After correcting the deviation in the XY coordinates, the authenticity is judged by comparing their lengths and patterns, and a bill recognizer and a bill recognizer that can be updated using a USB memory stick to improve performance or improve errors. The purpose is to provide a method.

Another object of the present invention, by using the method of recognizing the character and pattern after scanning the image image of the banknote, by using a method of recognizing a wide range of information based on much more information than the conventional recognition method using infrared and ultraviolet sensors In addition, accuracy and stability can be greatly improved, and if the luminance value of recognized bills is out of the average value, the ADC (Aanlog to Digital Converter) converter can be adjusted to correct the luminance, which significantly reduces misperception and prevents the occurrence of device malfunction. It is to provide a bill acceptor and a bill recognition method that can be made.

Another object of the present invention, by applying a combination of various methods without recognizing the recognition of the bill in a single method can be recognized without errors, regardless of whether the bill is damaged, wrinkled or foreign matter, mechanical errors and The present invention aims to provide a banknote recognizer and a banknote recognition method that can correct the positional deviation and the angular deviation even in the case of the recognition of the deviation, the old and the new priesthood.

The above and other objects of the present invention,

On the upper side of the main body 2, the cover 3 is installed in a mandrel with a shaft piece 4 so as to be opened and closed, and the main body 2 is revolved by a conveying belt 15 by a conveying device. It is to transfer the, and to detect the transmission amount of the banknote 100 conveyed by the light emitting lamp 11 and the light receiving sensor 17 mounted on the cover 3 and the main body 2;

Attaching and detaching levers 5 are provided with shafts 5-1 on both sides of the front end portions of the main body 2, which are opposite to the shaft pieces 4, and binding rods 7 are respectively provided on both ends of the cover portion 3, respectively. Fixing and binding or releasing the binding rod 7 by the detachable lever 5 to control the opening and closing of the cover portion 3;

At the inlet of the main body 2 where the transfer device is installed, a plurality of detection sensors 16 are installed at regular intervals to determine the new and old banknotes;

A scanner 10 is mounted on the bottom of the cover part 3 to scan bills to be transported;

Correcting the deviation in the XY coordinates between the scanned image scanned by the scanner 10 and the pattern image of the banknote already input, and determining the authenticity by comparing the length and pattern of the corrected scanned image and pattern image;

Detecting the transmission amount of the banknote 100 transferred by the light emitting lamp 11 and the light receiving sensor 17, and determining that the sensitivity information is pneumatic if the sensitivity information is a predetermined amount or more;

The main body 2 includes a USB connector 18 connected to the control unit 20 so that firmware for improving performance or error can be updated by a USB memory stick. It is achieved by the banknote recognizer 1 which is set as.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

1 to 5b is an exemplary view showing in detail the banknote recognizer 1 and the banknote recognition method using the same according to the present invention, Figures 1 and 2 show the cover of the banknote recognizer 1 according to the present invention. Figure 3 is a perspective view showing a covered state and an open state, Figure 3 is a schematic structural diagram of the bill recognizer 1 according to the present invention, Figure 4 is an operation showing the bill recognition process using the bill recognizer 1 according to the present invention. 5A and 5B are exemplary diagrams illustrating a correction state of XY deviation of a video image in the present invention.

The banknote recognizer 1 according to the present invention was formed as illustrated in FIGS. 1 and 2.

The cover 3 is placed on the shaft 4 on the upper side of the main body 2 in which the control unit 20, the authenticity judgment unit 24, the driving unit 21, and the banknote transfer device 23, which control various devices, are incorporated. A mandrel was installed to open and close, and a banknote insertion settle 6 was installed at the tip of the main body 2 so that the banknote 100 could be easily introduced.

Attaching and detaching levers 5 are provided with shafts 5-1 on both sides of the front end portions of the main body 2, which are opposite to the shaft pieces 4, and binding rods 7 are respectively provided on both ends of the cover portion 3, respectively. It fixed, and the binding rod 7 was bound or released by the detachable lever 5, and the opening-closing of the cover part 3 was interrupted.

On the upper surface of the main body 2, a plurality of conveying belts 15 are installed at regular intervals, and the bills 100 are transferred by the conveying belt 15, which is a bill conveying apparatus 23, by a driving unit 21 such as a reduction motor. It was possible to transport, and the bottom of the cover portion (3) by installing a plurality of feed guide rollers 12 on the same line as the conveying belt 15 to the mandrel so that the banknote 100 can be easily transported.

The bill transfer device 23 is provided with a speed automatic control device 26 so that the reduction motor of the drive unit 21 for operating (idling) the transfer belt 15 can maintain a constant speed of the transfer belt 15. In addition, it is possible to detect and automatically correct deviations that may occur due to mechanical deviation, assembly error, motor performance degradation, etc. during the recognition process by scanning.

The cover 3 and the main body 2 are provided with a plurality of light emitting lamps 11 and a light receiving sensor 17 at the same up and down same spots, which pass through the light emitting lamp 11 and the light receiving sensor 17. The permeation amount of the banknote 100 is sensed, and the detected information (permeation amount) is provided to the control unit 20 so as to determine whether pneumoconiosis or pneumoconiosis is determined depending on whether the permeation amount is above or below a certain amount.

The priesthood bill 100-1 or old bill bill 100-2 to which the bill 100 is inserted and transported by installing a plurality of sensing sensors 16 at regular intervals at the inlet of the main body 2 where the transport device is installed. ) Can be determined.

The scanner 10 is mounted at the center of the cover 3 to scan the surface (front or back) of the bill 100 to be transported, and the information (image) can be provided to the control unit 20. .

In the control unit 20 and the authenticity determination unit 24, the scanned images 110-2, 120-2, 130-2 scanned by the scanner 10, and the pattern images 110-1 of banknotes already input. Correct the deviation in the XY coordinate with (120-1) 130-1, and correct the scanned images 110-2, 120-2, 130-2 and the pattern images 110-1, 120-1. 130-1 is to determine the authenticity in contrast to the length and pattern.

The main body 2 is provided with a USB connector 18 connected to the control unit 20 to update firmware by a USB memory stick (not specifically shown) in which firmware is stored to improve performance or improve errors. I could do it.

The banknote recognizer 1 according to the present invention configured as described above is a priesthood bill (100-1) / old bill (100-2) while being carried out by the operation method according to the operation relationship diagram 30 as illustrated in FIG. And whether it is pneumoconiosis or pneumoconiosis.

The operating relationship system diagram 30 of the banknote recognizer 1 according to the present invention transfers the inserted banknote 100 by a transfer apparatus and determines whether it is pneumatic or counterfeit, and puts it into the banknote accommodating portion 25 or transfer apparatus. In reverse operation to discharge the bill 100 in reverse was to be carried out as follows.

Banknote recognizer 1 according to the present invention is a banknote input step 31 → old and new ticket discrimination step 32 → scanning step 33 → scan image XY deviation correction step 34 → banknote type determination step 35 → image The preparation step 36 was performed to carry out the process of the final determination step 37.

Banknote inserting step 31: As illustrated in FIG. 1, the banknote inserting frame mounted on the front end of the main body part 2 is carried out in a state in which the cover part 3 is fastened (coupled) to the main body part 2. Put the bill 100 through (6).

New and old ticket discrimination step 32: When the bill 100 is input through the bill inserting frame (6) is detected by the sensor 16 to operate the drive motor (not specifically shown) of the drive unit 21 The conveyance belt 15, which is the paper money conveying device 23, is revolved so that the inserted paper money 100 is completely passed through the sensing sensor 16.

When the banknote 100 introduced in this way passes through the sensing sensors 16 mounted at regular intervals, the narrow priesthood bill 100-1 is not detected by some of the sensing sensors 16, and the width is wide. Old-fashioned banknote 100-2 is sensed by the entire detection sensor 16 mounted, and thus whether or not (sensing information) whether it is detected by some or all of the detection sensors 16 installed in a line and maintained at regular intervals. The control unit 20 is provided to the control unit 20, the control unit 20 is immediately determined whether or not a wide range of old priesthood bill (100-1) or a wide old bill banknote (100-2).

Scanning step 33: The scanner which is the scanning device part 22 mounted on the cover part 3 when the banknote 100 inserted as mentioned above is conveyed to the discharge side by the conveyance belt 15 which is the banknote conveying apparatus 23 The whole bill (100 or front) of the bill 100, that is, the bill (100-1) or old bill (100-2) to which the 10 is transferred, is scanned, and the bill (scanned by the scanner 10) The scanned image (data) of 100 is provided to the control unit 20.

In particular, after scanning the image of the banknote to recognize the type of banknotes based on this, it is extremely important to maintain a constant quality of the image, especially the brightness.

However, in the actual situation, the luminance value of the image varies during initial or use of banknotes due to the adhesion between the banknote and the scan sensor, mechanical deviation, and deviation of the analog image signal processing unit. This is desperately required.

In the present invention, when calculating the average value of the brightness of the bill during the process of recognizing the bill out of a certain range to adjust the function of the AC converter to automatically adjust the brightness, this function is the brightness of the image that can be caused by various causes The deviation is reduced and normalized to give a false sense of error while reducing the occurrence of equipment failure.

Scanned Image XY Deviation Correction Step 34: When the scanned image (data) of the banknote 100 scanned by the scanner 10 is provided to the control unit 20, the control unit 20 provides the provided scanned image 110-2. (120-2) (130-2) and the pattern image (110-1) (120-1) (130-1) of the XY coordinate already input to the control unit 20, as illustrated in Figs. 5A and 5B Prepare for a match.

As illustrated in FIG. 5A, the reference point 0 of the XY coordinates, that is, the reference point 0 of the pattern images 110-1, 120-1, 130-1, and the scan images 110-2, 120-2 ( If the reference point 0-1 of 130-2 coincides with the reference point 0-1 and is inclined by the angle ∠θ, the control unit 20 controls the scanned images 110-2 and 120-2 based on the already set program. 130-2 is corrected by the inclined angle (∠θ) to match the pattern images 110-1, 120-1 and 130-1.

5A and 5B, reference points 0 and scan images 110-2, 120-2 and 130- of the pattern images 110-1, 120-1, and 130-1 are illustrated. The reference point (0-1) of 2) is inconsistent, and the pattern images 110-1, 120-1, and 130-1 differ from the reference point (0) to the XY representation by the deviation (X-1) and (Y-1). Is generated and the angle ∠θ is also inclined, the control unit 20 tilts the scanned images 110-2, 120-2 and 130-2 according to the program already set. The reference point (0-1) of the scanned image (110-2) (120-2) (130-2) by the deviation (X-1) and (Y-1) on the XY representation The scanned images 110-2, 120-2, and 130-2 in which the deviation occurs are matched with the reference points 0 of the images 110-1, 120-1, and 130-1, and the pattern image 110 -1) 120-1 and 130-1.

Banknote type determination step 35; The control unit 20 sets the scan images 110-2, 120-2, and 130-2 with the XY deviation corrected in the scan image XY deviation correction step 34. 1) In preparation for the length of 130-1, it is determined whether the priesthood bill 100-1 or the old bill 100-2 is 10,000 won or five thousand won 120 or one thousand won 130. do.

In the image contrast step 36, the control unit 20 controls the scan image 110-2, 120-2, 130-2 of the front or rear surface of which the XY deviation is corrected in the scan image XY deviation correction step 34. Compared to the images (front or back) of the pattern images 110-1, 120-1, and 130-1 that have already been set, whether the 10,000 won in the priesthood bill 100-1 or the old bill 100-2. Or it is determined whether the five thousand won bill 120 or one thousand won bill 130.

Final determination step 37; The authenticity determination unit 24 judges comprehensively the results determined in the old and new judging step 32, the scanned image XY deviation correction step 34, and the bill type determination step 35 and the image contrast step 36. Finally, it is determined whether or not the counterfeit is detected, and when it is determined as a pneumoconiosis (Y), it is supplied to the bill acceptor 25, and when it is determined as a counterfeit (N), the bill transfer device 23 of the driving unit 21 is operated in reverse. It is discharged | emitted by the banknote insertion frame 6.

The banknote recognizer 1 according to the present invention determines whether or not and the amount (volume) of pneumoconiosis and counterfeit while repeatedly performing the above process every time the banknote 100 is inserted.

In addition, by installing a USB connector 18 connected to the control unit 20 on one side of the main body 2, it was necessary to upgrade the firmware to improve the performance of the bill recognizer (1) or to compensate for errors.

The general method is to replace the ROM to store the program or update using the serial communication port or the dedicated connector. However, this method is convenient because it is necessary to remove the paper recognizer and bring it to the company or use the dedicated equipment. Sex was remarkable and very uncomfortable.

In the present invention, by adopting the USB connector 18, by inserting the USB memory stick in which the update data is stored, the firmware can be automatically updated, so that anyone can easily perform the update.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be obvious to those skilled in the art that various modifications and changes can be made within the technical scope of the present invention, and such modifications and modifications belong to the appended claims.

The bill acceptor and bill recognition method according to the present invention is divided into a main body portion to which the transfer device is installed and a cover portion to which the scanner is installed so that the cover can be opened and closed to the main body portion, and a large number is provided at the entrance of the main body into which the bill is inserted. Sensor is installed at regular intervals to determine new and old banknotes, and detects penetrating amount of transferred banknotes, if sensitivity information is over a certain amount, it is judged as pneumatic, and scanned banknotes (front or back) are scanned by scanner After correcting the deviation in the XY coordinates with the pattern image of the input banknote, the authenticity is judged by comparing their length and pattern, and the firmware for improving the performance or error can be updated using the USB memory stick. Infrared by using a method of recognizing letters and patterns after scanning a video image of a bill And it is able to recognize the paper type and improve the accuracy and stability greatly based on much more information than the conventional recognition method using the UV sensor.If the luminance value of the bill is out of the average value, adjust the ADC converter to adjust the luminance. By correcting the error, it is possible to significantly reduce the misrecognition and prevent the malfunction of the device, and by applying a combination of methods without recognizing the bills as a single method, the bills are not affected by damage, wrinkles or foreign matters. It is possible to recognize without mechanical errors, and even to recognize mechanical errors and deviations and old and new priesthood, it is possible to correct the positional deviation and angular deviation by software.

Claims (4)

On the upper side of the main body 2, the cover 3 is installed in a mandrel with a shaft piece 4 so as to be opened and closed, and the main body 2 is revolved by a conveying belt 15 by a conveying device. It is to transfer the, and to detect the transmission amount of the banknote 100 conveyed by the light emitting lamp 11 and the light receiving sensor 17 mounted on the cover 3 and the main body 2; Attaching and detaching levers 5 are provided with shafts 5-1 on both sides of the front end portions of the main body 2, which are opposite to the shaft pieces 4, and binding rods 7 are respectively provided on both ends of the cover portion 3, respectively. Fixing and binding or releasing the binding rod 7 by the detachable lever 5 to control the opening and closing of the cover portion 3; At the inlet of the main body 2 where the transfer device is installed, a plurality of detection sensors 16 are installed at regular intervals to determine the new and old banknotes; A scanner 10 is mounted on the bottom of the cover part 3 to scan bills to be transported; Correcting the deviation in the XY coordinates between the scanned image scanned by the scanner 10 and the pattern image of the banknote already input, and determining the authenticity by comparing the length and pattern of the corrected scanned image and pattern image; Detecting the transmission amount of the banknote 100 transferred by the light emitting lamp 11 and the light receiving sensor 17, and determining that the sensitivity information is pneumatic if the sensitivity information is a predetermined amount or more; Scanning the transferred bill 100 with a scanner to determine the authenticity by comparing the length and pattern of the scanned image with the pattern image of the already entered bill; The main body 2 includes a USB connector 18 connected to the control unit 20 so that firmware for improving performance or error can be updated by a USB memory stick. Banknote recognizer. The banknote 100 is transferred by the banknote conveying device 22, and judged whether it is pneumatic or counterfeit, and put into the banknote accommodating part 25, or by operating the conveying device in reverse to discharge the banknote 100 in reverse. In Banknote input step 31 for inserting the banknote 100 through the banknote insertion settle 6 mounted on the front end of the main body (2): The detection of the banknote 100, which is introduced through the banknote inserting frame 6, by the sensing sensors 16 mounted on the front end of the main body 2 in a row, and sensed by the entire sensing sensor 16. New priesthood judging step (32) of judging whether the priesthood bill (100-1) or old priesthood bill (100-2) according to whether or not; When the inserted banknote 100 is transferred to the discharge side by the transfer belt 15, the scanner 10 mounted on the cover part 3 scans the surface (front or back) of the banknote 100, and the scanned banknote ( Scan step 33 of providing a scan image of the 100 to the control unit 20: The control unit 20 may provide the scanned images 110-2, 120-2, and 130-2 with the pattern images 110-1, 120-1, 130-on the XY coordinates already input to the control unit 20. Scanned image XY deviation correction step 34 of correcting the deviation in preparation for conformity with 1): The control unit 20 sets the scan images 110-2, 120-2, and 130-2 with the XY deviation corrected in the scan image XY deviation correction step 34. 1) A banknote that determines whether the ten thousand won (110), five thousand won (120) or one thousand won (130) of the priesthood bill (100-1) or old bill (100-2) in preparation for (130-1) Type determination step 35; The controller 20 sets the scanned image 110-2, 120-2, or 130-2 of the front or rear surface of which the XY deviation is corrected in the scan image XY deviation correction step 34. In contrast to (120-1) (130-1), whether the right of ten thousand won (110), five thousand won (120) or one thousand won (130) in the priesthood bill (100-1) or old bill (100-2) An image contrast step 36 of determining; The authenticity determination unit 24 judges comprehensively the results determined in the old and new judging step 32, the scanned image XY deviation correction step 34, and the bill type determination step 35 and the image contrast step 36. Finally, it is judged whether or not the counterfeit is determined, and if it is determined as a pneumoconiosis (Y), it is supplied to the bill acceptor 25, and when it is determined as a counterfeit (N), the bill transfer device 23 of the driving unit 21 is operated in reverse. Final decision step (37) for discharging to the bill insertion slot (6); including, In the scan image XY deviation correction step 34, the deviation compensation between the scan images 110-2, 120-2, 130-2, and the pattern images 110-1, 120-1, 130-1 is performed; Correcting the scanned images 110-2, 120-2, 130-2 by an inclined angle ∠θ, and scanning the scan images 110-2, 120-2, 130-2 by the X coordinate. Correcting by the deviation X-1, correcting the scanned images 110-2, 120-2, 130-2 by the Y coordinate deviation Y-1, and scanning image 110-2 ( Matching the reference point (0-1) of the 120-2) (130-2) with the reference point (0) of the pattern image (110-1) (120-1) (130-1), the scan image has a deviation (110-2) (120-2) (130-2) matching the pattern image (110-1) (120-1) (130-1); bills using a bill recognizer, characterized in that consisting of Recognition method. The method of claim 1, wherein the bill transfer device 23 is further provided with a speed automatic adjustment device 26, the speed of the reduction motor to recognize the deviation caused by mechanical deviation, assembly error, deterioration of motor performance by scanning The bill recognizer characterized in that it is detected during the course of time and automatically corrected. The method according to claim 2, in the detection sensor 16 is provided at the inlet of the main body portion 2 at regular intervals, if all of the detection sensor 16 is recognized by the inserted banknotes, it is determined as a bill, and the detection sensor 16 Banknotes recognition method using a banknote recognizer, characterized in that it is determined that if the one or more less recognized.

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