JPH0684043A - Paper money identifying device - Google Patents

Abstract

PURPOSE:To provide a paper money identifying device capable of measuring the accurate output data of a bill even when a data measuring point is shifted due to the cutting shear of a paper money, the carrying slip of a carrying means, or the like. CONSTITUTION:The device is provided with a measuring section setting means 8 for setting up plural output data measuring sections for detecting the features of the printing pattern of a paper money by measuring means 6, an output data processing means 9 for finding out at least one of data out of a maximum value in a section, a minimum valve in a section and an average value in a section based on the output data measured by the means 6 and an authenticity judging means 11 for judging the authenticity of a paper money by executing operation based on data found out by the means 9 and comparing the operation result with a reference value. Consequently at least one of data out of the maximum value in a section, the minimum value in a section and the average value in a section can be found out based on the output from the means 8, 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill discriminating apparatus which is mounted on an automatic vending machine or the like and judges the authenticity of inserted bills.

[0002]

2. Description of the Related Art In recent years, the number of vending machines equipped with a bill validator has been increasing due to the diversification and price increase of products sold by vending machines. The vending machine may be installed unattended outdoors, and the bill validators installed in these vending machines may have counterfeit bills inserted by mischief, thus ensuring the true bill acceptance rate. In addition, it is required to have excellent counterfeit bill elimination performance.

A conventional bill validator will be described below with reference to the drawings. FIG. 2 is a block diagram showing the configuration of a conventional bill identifying device. In FIG. 2, 1 is a banknote transport means for transporting banknotes, 2 is a transport amount detection means for detecting the transport amount of the transport means 1, and 3 is a banknote insertion detection means for detecting that a banknote has been inserted into a banknote identification device. Reference numeral 4 is an optical sensor for detecting transmitted light or reflected light of a bill, 5 is amplification means for amplifying the output of the optical sensor 4, and 6 is output data of the amplification means 5 in accordance with the carrying amount of the carrying means 1. A measuring means for measuring, 7 is a measuring point setting means for setting a point at which the output data of the amplifying means 5 is measured by the measuring means 6, and 10 is output time of the amplifying means 5 measured by the measuring means 6 at the time of authenticity determination of a bill. Storage means for storing up to 1
Reference numeral 1 is a genuine / counterfeit determination unit that determines the authenticity of a bill by performing a calculation based on the output data stored in the storage unit 10 and comparing the calculation result with a reference value.

The operation of the bill discriminating apparatus having the above structure will be described below. First, when the bill insertion detecting means 3 detects that a bill has been inserted into the bill validating device, the bill transporting means 1 is normally rotated to draw the bill into the bill validating device to start the bill validating process. Regarding the bill identification processing, an optical sensor 4 is provided on the bill conveyance path to detect transmitted light or reflected light of the bill, and further, the output of the optical sensor 4 is amplified by an amplification means 5 to obtain output data. There is. Further, the carry amount of the bill accompanying the carry of the bill by the carrying unit 1 is detected by the carry amount detecting unit 2.

On the other hand, the measuring means 6 determines the measuring point setting means such as "a, b, c, ..." In the case of measuring the output data of FIG. The output data of the amplifying means 5 is measured at the output data measuring point set by 7, and the measured output data is stored in the storage means 10 until the time of authenticity determination of the bill. The authenticity determination means 11 is the storage means 1
The authenticity of the bill is determined by performing an arithmetic operation based on the output data stored in 0 and comparing the arithmetic result with a reference value.

[0006]

However, in the above-mentioned conventional configuration, as shown in FIG. 4, the data measuring points "a, b, c" are "a1, b, c" due to deviation of cutting of bills or conveyance slip of the conveying means. If there is a deviation such as “b1, c1”, the authenticity determination reference value must be set wide in order to secure the true bill acceptance rate, and there is a problem in that the bill identification performance deteriorates.

The present invention solves the above-mentioned conventional problems. Even when the data measurement point is deviated due to the deviation of cutting of bills or the conveyance slip of the conveying means, the output data of the accurate measurement point of the bill is measured. An object of the present invention is to provide a bill validator that can be used.

[0008]

In order to solve this problem, a bill discriminating apparatus of the present invention comprises a measuring section setting means for setting a plurality of output data measuring sections for detecting characteristics of a printing pattern of a bill by the measuring means. In the plurality of measurement sections, output data processing means for obtaining at least one data of the section maximum value, the section minimum value, and the section average value based on the output data measured by the measurement means in the plurality of measurement sections, An arithmetic operation is performed based on the data obtained by the output data processing means, and the arithmetic result is compared with a reference value to provide an authenticity determining means for determining the authenticity of the bill.

[0009]

With this configuration, even if the data measurement points are displaced due to the cutting deviation of the bill or the slip of the conveying means, the measuring means sets a plurality of output data measuring sections for detecting the characteristics of the printing pattern of the bill. Accurate measurement of banknotes by determining at least one data of the section maximum value, the section minimum value, and the section average value based on the output data measured by the measurement section setting means and the measuring means in the plurality of measurement sections The output data of the points can be measured.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bill discriminating apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the construction of a bill validator according to an embodiment of the present invention. In FIG. 1, 1
Is a banknote transport unit for transporting banknotes, 2 is a transport amount detection unit for detecting the transport amount of the transport unit 1, 3 is a banknote insertion detection unit for detecting that a banknote has been inserted into the banknote identification device, 4
Is an optical sensor for detecting transmitted light or reflected light of a bill, 5 is amplification means for amplifying the output of the optical sensor 4, and 6 is measurement of output data of the amplification means 5 according to the carry amount of the carrying means 1. Measuring means, 8 is a measuring section setting means for setting a plurality of output data measuring sections for detecting the characteristics of the printing pattern of the banknote by the measuring means 6, and 9 is output data measured by the measuring means 6 in the plurality of measuring sections. Output data processing means for obtaining at least one or more data of the interval maximum value, the interval minimum value and the interval average value on the basis of the output data of the amplifying means 5 measured by the measuring means 6 and the output data processing means 9. Storage means for storing the obtained section maximum value, section minimum value, and section average value up to the time of authenticity determination of the bill, 11 is the output data processing means in a plurality of measurement sections Performs calculation based on the data obtained by, by comparing the calculation result with a reference value, a false determination means for determining the authenticity of the banknote.

The operation of the bill discriminating apparatus constructed as described above will be described below. First, when the bill insertion detecting means 3 detects that a bill has been inserted into the bill validating device, the bill transporting means 1 is normally rotated to draw the bill into the bill validating device to start the bill validating process. Regarding the bill identification processing, an optical sensor 4 is provided on the bill conveyance path to detect transmitted light or reflected light of the bill, and further, the output of the optical sensor 4 is amplified by an amplification means 5 to obtain output data. There is. Further, the carry amount of the bill accompanying the carry of the bill by the carrying unit 1 is detected by the carry amount detecting unit 2.

On the other hand, the measuring means 6 outputs the output of the amplifying means 5 in a plurality of output data measuring sections for detecting the characteristics of the printing pattern of the bill set by the measuring section setting means 8 according to the carry amount of the bill carrying means 1. The data is measured, and the measured data is temporarily stored in the storage unit 10. At the final point of each of the plurality of output data measurement sections, the output data processing unit 9 uses, for example, the output data of the plurality of measurement sections temporarily stored in the storage unit 10 as shown in FIG. In the output data, the maximum section value is measured in the measurement section A where the characteristics of the thin printed portion of the banknote are detected, the minimum section value is measured in the measurement section B where the characteristics of the dark printed portion of the banknote is detected, and the watermark of the banknote. In the measurement section C of a portion where there is no printing such as a section, the section average value and at least one or more data are obtained for each measurement section, and are stored in the storage means 10 until the authenticity of the bill.

By processing the output data in the plurality of measurement sections by the output data processing means 9 as described above, even when the data measurement point is displaced due to a deviation in cutting of bills or a transportation slip of the transportation means 1, Within the measurement section set by the measurement section setting means 8, the output data is automatically corrected, the output data at the correct measurement point of the bill can be measured, and the variation in the output data of the bill is reduced. Further, the bill authenticity determination unit 11 performs an operation based on the data obtained by the output data processing unit 9 in the plurality of measurement sections stored in the storage unit 10, and sets the operation result as a reference value. By comparing, the authenticity of the bill is determined.

[0015]

As described above, the bill discriminating apparatus according to the present invention has a measuring section setting means for setting a plurality of output data measuring sections for detecting the characteristics of the printing pattern of the bill by the measuring means, and the measuring section setting means for the plurality of measuring sections. Output data processing means for obtaining at least one or more of the section maximum value, section minimum value, and section average value based on the output data measured by the measuring means, and the output data processing means for a plurality of measurement sections. An operation is performed based on the data, and the authenticity of the bill is determined by comparing the operation result with a reference value. Therefore, even if the data measurement point is displaced due to a cutting deviation of the bill or a conveyance slip of the conveyance means, the output data is automatically corrected within the measurement section set by the measurement section setting means, and the bill is accurately measured. Since the output data of the points can be measured, the variation of the output data of the banknotes can be reduced, and the reference value of the authenticity judgment of the banknotes can be set strictly, so that the banknote identification device with excellent counterfeit note rejection performance can be realized. It is possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of a bill validator according to an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of a conventional bill validator.

FIG. 3 is a characteristic diagram for explaining the operation of the bill validator in one embodiment of the present invention.

FIG. 4 is a characteristic diagram for explaining the operation of a conventional bill validator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 bill conveyance means 2 conveyance amount detection means 3 bill insertion detection means 4 optical sensor 5 amplification means 6 measurement means 7 measurement point setting means 8 measurement section setting means 9 output data processing means 10 storage means 11 true / false determination means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takema Fujiwara 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. An optical sensor for detecting transmitted light or reflected light of a bill, and an amplifying means for amplifying an output of the optical sensor,
A bill validator having a carrying unit for carrying the bill, a carrying amount detecting unit for detecting a carrying amount of the carrying unit, and a measuring unit for measuring output data of the amplifying unit according to the carrying amount of the carrying unit. In, the measurement section setting means for setting a plurality of output data measurement section for detecting the characteristics of the printing pattern of the banknote by the measurement section, and the section maximum value based on the output data measured by the measurement section in the plurality of measurement sections Output data processing means for obtaining at least one or more data of the section minimum value and the section average value, and an operation based on the data obtained by the output data processing means in the plurality of measurement sections, and the operation result A bill discriminating apparatus provided with a genuine / counterfeit determining unit for determining whether the bill is true or false by comparing with a reference value.