KR100693291B1 - Double sheet detecting device using magnetic ink character recognition device and method thereof - Google Patents

Abstract

The present invention relates to a double sheet detecting device and a method using a magnetic ink character recognition device, and more particularly, that counting two or more checks in one sheet when counting the number of checks for withdrawal and withdrawal of the check in the cash dispenser In the double sheet detecting device installed for detecting, using a magnetic ink character recognition (MICR) device, the size of the magnetic ink such as check number, serial number, account number, etc. printed on the lower part of the check is read. The present invention relates to a double sheet detecting device and a method using a magnetic ink character recognition device capable of detecting a double sheet of a check by checking whether the sheet is included in a range or not.

As described above, the conventional invention can be simply implemented with fewer components and can reduce the installation area, compared with the conventional invention, in which several optical sensors or physical components had to be provided to detect size and thickness, respectively. There is a more advantageous effect in that.

ATM, check, withdrawal, MICR, magnetic ink character recognition device

Description

Double sheet detecting device using magnetic ink character recognition device and its method {Apparatus and Method for Detecting Two Papers Using MICR}

1A to 1B are block diagrams showing the internal structure of a conventional double sheet detecting device of a cash machine, and a flow chart showing the double sheet detecting method.

2A to 2B are diagrams showing the shape of magnetic ink characters printed on a check used in the present invention and waveforms when the magnetic ink characters are read.

3 is a block diagram showing an internal configuration of a double sheet detecting device using the magnetic ink character recognition device according to the present invention.

4 is a flowchart illustrating a double sheet detecting method using the magnetic ink character recognition apparatus according to the present invention.

FIG. 5 is a graph showing waveforms of a reference waveform and a double sheet when a check is made in accordance with the present invention.

* Explanation of symbols for the main parts of the drawings

10, 100: double sheet detection device 12: size detection unit

14 thickness detecting unit 16 check conveying unit

18, 150 control unit 110: MICR search unit

120: waveform extraction unit 130: comparison unit

140: check transfer unit 200: check

210: MICR part

The present invention relates to a double sheet detecting device and a method using a magnetic ink character recognition device, and more particularly, a check number printed in a lower portion of a check using a magnetic ink character recognition (MICR) device that recognizes a magnetic ink character. By using the magnetic ink character recognition device to read the magnitude of the magnetic ink such as serial number and account number, it checks whether it is included in the standard range and detects the double sheet of the check to enable more accurate and reliable double sheet detection. A double sheet detecting device and a method thereof.

In general, when a check is counted for cash withdrawal at a cash dispenser, the detection method of a double sheet detector equipped to detect the counting of two or more checks into one sheet is, firstly, the length of the check and the size of the check. Determining the double sheet of the check by discriminating the difference, and then detects the double sheet in a manner that detects the thickness of the double sheet that has not been detected.

Hereinafter, with reference to the accompanying drawings will be described a conventional double sheet detection device of a cash machine.

Figure 1a is a block diagram showing the internal configuration of a conventional double sheet detection device of a cash machine.

Referring to FIG. 1A, when the conventional double sheet detecting device 10 detects whether a check is inserted into the double sheet detecting device, the size detecting unit 12 determines the presence or absence of a sheet by a check size such as the length and width of the check; The thickness detecting unit 14 detects the thickness of the check by detecting the thickness of the check, the check conveying unit 16 which rejects the check when the check is determined to be a double sheet in each module, and controls each module. And a control unit 18 for determining whether to count or reject a check by receiving whether a double sheet is transmitted from each module.

The size detecting unit 12 includes a light emitting unit for converting a general electric signal into an optical signal and irradiating a check, and a light receiving unit for receiving an optical signal passed after irradiating a check from the light emitting unit and restoring the electric signal into an electric signal. When a check is put in, it plays a role in recognizing it.

The thickness detecting unit 14 may be implemented using various kinds of sensors or mechanisms to detect the thickness. In the conventional double sheet detecting method, the thickness detecting unit 14 may detect a thickness or an optical sensor using a lever principle. The method of detecting the thickness by using the method has been mainly used.

More specifically, Figure 1b is a flow chart showing a double sheet detection method of a conventional cash dispenser.

Referring to the drawings, first, when it is detected that the check is inserted (S102), the size detecting unit 12 irradiates a predetermined light with the check in the light emitting unit of the provided optical sensor, and then passes the check through the light sensor The light receiving unit detects the size of the check therefrom, and detects the presence or absence of a double sheet (S104). As a result of the above check, if the check is determined to be a double sheet (S106), the check conveying unit 16 rejects the check to the customer at the time of the deposit and the reject box of the cash dispenser at the time of withdrawal (S112).

When the check is judged to be normal (S106), the thickness detector 14 detects the weight of the check by detecting the weight of the moving slit by detecting the weight of the check when the check comes in using the principle of the lever and detects the presence of the double sheet The thickness of the check is detected using a method of detecting the presence or absence of a double sheet by the amount of light that passes through the check using an optical sensor as used in the size sensor (S108).

As a result of the above check, if it is determined that the check is a double sheet (S110), the check transfer unit 18 may reject the check (S112), and if it is determined that the check is normal, the check may be counted and work on the next check may be performed. (S114).

However, when using the principle of the lever in the conventional method as described above, there is a problem in that the structure is much more complicated, because a large number of driving parts to implement this mechanism mechanism is strong.

In addition, in the case of using an optical sensor, the resolution of the sensor for analyzing the input waveform should be high or a potentiometer should be used. The parts are expensive and the components for implementing the same are sophisticated. Because of the design, the design had a difficult problem.

The present invention has been proposed to solve the above problems, when counting the number of checks for withdrawal and withdrawal of cash in a cash dispenser, a double sheet detection device equipped to detect that two or more checks are counted as one sheet. By using a magnetic ink character recognition (MICR) device that recognizes magnetic ink characters, the size of the magnetic ink such as check number, serial number, account number, etc. printed on the lower part of the check is read and included in the reference range. It is an object of the present invention to provide a double sheet detecting device and a method using a magnetic ink character recognition device capable of detecting a double sheet of a check by detecting a double sheet of a check.

In addition, in the conventional invention, a plurality of optical sensors or physical components had to be provided in order to detect size and thickness, respectively, and in the present invention, the present invention can be easily implemented with fewer components. This has the advantage that the installation area can be reduced.

In order to achieve the above object, the present invention describes a double sheet detecting apparatus and method using the magnetic ink character recognition apparatus, and also proposes an internal configuration module of the double sheet detecting apparatus for achieving the above processes.

The present invention for detecting double sheets using a magnetic ink character recognition device, the first step of recognizing the position of the magnetic ink character of the check when the check is inserted, if the magnetic ink character is recognized on one side of the check, A second step of detecting the intensity of the magnetic field; a third step of extracting the magnitude of the waveform representing the intensity of the magnetic field per hour from the detected intensity of the magnetic field; and reading the magnitude of the waveform to determine the magnetic ink waveform of the check. If not included in the reference range is provided with a fourth step to determine the two sheets.

In addition, the double sheet detection device using the magnetic ink character recognition device to control the steps, the magnetic ink character recognition (MICR) search unit for receiving a check to recognize the magnetic ink character of the check; A waveform extraction unit for detecting the intensity of the magnetic field of the recognized magnetic ink character and extracting the detected magnetic field waveform; A comparison unit which compares the extracted waveform with a reference range of the magnetic ink waveform when the check is a piece, and transmits the result to the control unit; A control unit for controlling each module and processing or counting a check according to the result transmitted from the comparison unit, and a check transfer unit for rejecting the checked check when it is determined to be a double sheet.

Hereinafter, with reference to the accompanying drawings, the most preferred embodiment of the present invention will be described in detail as follows.

2A to 2B are diagrams showing the shape of magnetic ink characters printed on a check used in the present invention and waveforms when the magnetic ink characters are read.

In general, a method for recognizing a character or a mark includes magnetic ink character reading, optical mark reading, and optical character reading. Among them, magnetic ink character recognition (MICR, Magnetic Ink Character Recognition) is a character recognition system using magnetic ink characters are mainly used in banking business. In particular, the check number, serial number, account number, etc. printed at the bottom of the check are printed with magnetic ink characters, and the magnetic ink characters are characters printed with special ink (magnetic ink) containing magnetic material. Ink character shapes are internationally standardized. Magnetic ink letters include E13B developed by the American Bankers Association (ABA) and CMC7 developed in Europe.

In Korea, E13B was enacted and standardized in 1983 as Korean Industrial Standard KS C5623, and internationally standardized to ISO1004. E13B uses 10 numbers and 4 special symbols from 0 to 9, using a total of 14 standard letters. The magnetic ink character is magnetized and then goes through the magnetic recognition head to generate a voltage waveform on the magnetic recognition head by the magnetized magnetic ink character. A method of quantizing the voltage waveform to recognize the character is mainly used.

Referring to FIG. 2A, a total of 20 digits is described as a magnetic ink character (MICR) 210 at the lower end of the check 200, and the rightmost 10 digits represent the check amount 220, and immediately to the left of the check 200. The two digits indicate a check winding 230 that indicates whether it is 100,000 won, 500,000 won, or 1 million won. Also, the first eight digits of the leftmost check 200 are check number 240, the next two digits represent bank number 250, and the next four digits 260 represent issue point number.

The above numbers are formed of magnetic ink characters, and the numbers of voltage waveforms generated by the magnetic ink characters represented by the numerals and the English letters generate unique waveforms. As shown in FIG. The detection waveform at time and the detection waveform at '2' have a unique shape as shown in Figs. 2B (a) and 2B (b), so that the corresponding character can be decoded therefrom.

In the present invention, through the magnetic ink character recognition apparatus for recognizing magnetic ink characters as described above, the entire magnetic ink characters formed at the lower end of the check are recognized as one magnetic ink character, and the strength of the magnetic field and the magnitude of the waveform thereof are determined. When the check is one sheet, the magnetic ink waveform range is set as the reference range, and when the checks overlap, the magnetization density increases and the magnitude of the waveform vibrates greatly. The device was able to detect the double check of the check by checking whether it was lifted.

More specifically, Figure 3 is a block diagram showing the internal configuration of the double sheet detection device using a magnetic ink character recognition device according to the present invention.

Referring to the drawings, the double sheet detecting apparatus 100 according to the present invention receives the check in the vertical direction and recognizes the magnetic ink character of the check 110 and the strength of the magnetic field of the recognized magnetic ink character A waveform extracting unit 120 for detecting and extracting a magnitude of a waveform from the detected magnetic field strength, a comparing unit 130 for comparing the extracted waveform with a reference range and transmitting the result to a control unit; As a result, if it is determined that the check is a double sheet, a check carrying unit 140 for rejecting the check and a control unit 150 for controlling each module is provided.

The MICR search unit 110 searches whether the magnetic ink character of the check is located on the right or left side, at the same time on both sides, or not on either side. In the above, if the magnetic ink letters of the check are located on both sides at the same time, it is determined that the two sheets of the check are overlapped, and the check transfer unit 140 checks the customer with the deposit box of the cash dispenser at the time of the deposit and withdraws the check. Reject In the above, if the magnetic ink character of the check is not located on either side, it is determined as an abnormal check and the corresponding error content is transmitted to the controller 150.

The waveform extraction unit 120 first detects the intensity of the magnetic field of the magnetic ink character recognized by the MICR search unit 110, and then, the waveform extractor 120 detects the intensity of the magnetic field per hour from the intensity of the detected magnetic field. Extract the size.

The comparison unit 130 compares the extracted waveform with a reference range and transmits the result to the control unit. In the present invention, the reference range may be set as a reference range that detects the intensity of the magnetic field when the check is one sheet and extracts the magnitude of the waveform therefrom.

First, the control unit 140 receives the comparison result of the comparison unit 130, and if the extracted waveform is included in the reference range, the check is determined to be a normal check, and the extracted waveform is in the reference range If not included, check and reject check.

4 is a flowchart illustrating a double sheet detecting method using the magnetic ink character recognition apparatus according to the present invention.

Referring to the drawing, first, when a check is inserted in the vertical direction of FIG. 2A (S202), the MICR search unit 110 searches whether a magnetic ink character exists at the right or left side of the check, that is, at both ends (S204).

In the above, if the magnetic ink character is not retrieved from the right or left (S206), it is determined as an abnormal check (S208), and transmits the corresponding error content to the control unit 150 (S210), withdrawal to the customer at the time of deposit At the time, the check is rejected to the reject box of the cash dispenser (S212) to complete the above operation.

In the above, if the magnetic ink character is searched in both (S214), it means that the checks are overlapped, so it is determined as a double sheet (S222), and rejects the check (S224).

In the above, if the check is searched only on either the right or the left (S214), the waveform extraction unit 120 detects the intensity of the magnetic field of the searched magnetic ink character (S216), per hour from the intensity of the detected magnetic field The magnitude of the waveform representing the strength of the magnetic field is extracted (S218).

At this time, if the check is more than two sheets, the magnetic ink characters are overlapped to increase the density of magnetization and accordingly, the size of the waveform greatly vibrates, and thus the size of the extracted waveform is included in the reference range. Check (S220). If the size of the waveform is not included in the reference range, it is determined as a double sheet (S222), the check is processed by rejecting (S224), and if included in the reference range, it is determined as a normal one-sheet check (S226), By counting the checks (S228), the above operation can be completed.

In the above description, the reference range refers to a range of reference waveform sizes that the magnetic field can achieve by detecting the total magnetic field strength of the inserted magnetic ink character when the check is one sheet, and the reference waveform at this time is as shown in FIG. It has the shape of a waveform that is constantly decreasing with time.

On the other hand, the waveform when the check is double is oscillated at a constant period as shown in Fig. 5 (b), and has a waveform larger than when the check is a single sheet. In the present invention, it is possible to detect a double sheet of a check by setting the reference waveform range as the reference range, extracting waveforms from the detected magnetic field, and comparing them.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example and should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

As described above, the present invention relates to a double sheet detecting device, which is equipped with a magnetic ink to detect when two or more checks are counted as one sheet when counting the number of checks for withdrawal and withdrawal of the check in a cash machine. By using the character recognition (MICR) device, by reading the magnitude of the magnetic ink such as check number, serial number, account number, etc. It can help more accurate and reliable double sheet detection.

In addition, in the conventional invention, a plurality of optical sensors or physical components had to be provided in order to detect size and thickness, respectively, and in the present invention, the present invention can be easily implemented with fewer components. Therefore, there is a more advantageous effect in that the installation area can be reduced.

Claims (7)

A first step of recognizing a position of a magnetic ink character of a check when a check is inserted; A second step of detecting a strength of a magnetic field of the magnetic ink character when the magnetic ink character is recognized at one side of the check; Extracting the magnitude of the waveform representing the intensity of the magnetic field per hour from the detected intensity of the magnetic field; A fourth step of reading the magnitude of the waveform and determining that it is a double sheet if it is not included in the reference range of the magnetic ink waveform for one sheet of the check; Double sheet detection method, characterized in that consisting of. The method of claim 1, wherein If the magnetic ink character is not recognized, it is determined as an abnormal check and the corresponding error content is transmitted to the control unit. The method of claim 1, wherein When the magnetic ink character is retrieved from both sides of the check, it is determined as a double sheet and rejected sheet characterized in that the rejected. A magnetic ink character recognition (MICR) search unit for recognizing magnetic ink characters of a check; A waveform extraction unit for detecting the intensity of the magnetic field of the recognized magnetic ink character and extracting the waveform of the detected magnetic field; A comparison unit which compares the extracted waveform with a reference range of the magnetic ink waveform when the check is one sheet and transmits the result to the controller; A control unit which controls each module and processes or counts a check according to a result transmitted from a comparison unit; Double sheet detection device, characterized in that consisting of. The method according to claim 4, If the checked check is deducted from the check, the check transfer section will reject the check to the customer at the time of deposit and to the reject box of the cash dispenser. The double sheet detecting device further comprising. The method of claim 4, wherein the MICR search unit If the searched magnetic ink character is not recognized, it is determined as an abnormal check and the corresponding error content is transmitted to the control unit. The double sheet detecting device according to claim 4 or 6, wherein the MICR retrieval unit determines that the retrieved magnetic ink character is recognized on both sides of the check and rejects the check.

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