JPH09115024A - Medium discriminating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an acceptance rate from decreasing owing to the reinsertion of a damaged medium, forged medium or altered medium by inhibiting the discrimination result of a medium from being totalizing if the reinsertion of the same medium is detected by a reinsertion detecting means when the medium which is returned is inserted again. SOLUTION: After a read and judging part 14 discriminates whether or not an inserted bill A is genuine, a data totalization part 22 of a storage part 18 totalizes information regarding the genuine/false decision result. Further, a temporary storage part 21 temporarily stores features of the inserted bill A and when the feature quantity of the bill A which is reinserted matches with the feature quantity of the bill A stored in the temporary storage part 21, the discrimination result of the bill A is inhibited from being totalized. Consequently, decrease in the acceptance rate due to the damaged bill, forged bill, or altered bill is prevented to improve the reliability of the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a result of the authenticity of a medium such as a bill inserted in an automatic ticket vending machine, an automatic vending machine, an ATM, an automatic money changer, etc. The present invention relates to a medium identification device that aggregates information (determination defect rate, amount, etc.).

[0002]

2. Description of the Related Art Conventionally, as a medium discrimination apparatus of the above-mentioned example,
For example, a sensor that detects the characteristics of the target medium such as banknotes,
An electronic circuit that processes the sensor signal using a filter circuit, a peak detection circuit, a difference detection circuit, and the like to determine the authenticity, and an aggregation unit that aggregates the results of the authenticity discrimination by this electronic circuit as information. There is a device equipped.

However, if the above-mentioned sensors, circuits, mechanical parts, etc., deteriorate with time due to deterioration of the acceptance rate due to aging and dust adhesion, it is highly likely that the re-inserted bill is judged to be true. On the other hand, extremely damaging media (hereinafter simply referred to as damaging media), forged media, and forged media are added with the false judgment data at the above-mentioned aggregation unit, and these damaged media, forged media, and forged media are added. Will be returned as a defective judgment, so if such a medium is intentionally inserted many times, the acceptance rate will drop excessively, not only will the reliability of the device deteriorate, but it will also be inversely proportional to the decline in the acceptance rate. As a result, the rejection rate (judgment failure rate) increases, so if an alarm is configured to be issued when the rejection rate exceeds a specified value, the above-mentioned artificial repetitive input may cause an unnecessary alarm to be issued by mistake. Problems There was.

[0004]

SUMMARY OF THE INVENTION The invention according to claim 1 of the present invention, when the inserted medium is re-input after being returned, prohibits the totalization of the discrimination results of this medium, and thereby the above-mentioned damage medium. Another object of the present invention is to provide a medium discriminating apparatus capable of improving the reliability of the apparatus by preventing the acceptance rate from decreasing due to the re-input of the forged medium and the altered medium.

According to the second aspect of the present invention, the re-inputting of the inserted medium after the return is judged by the characteristic amount of the medium, and the aggregation of the discrimination result of the medium is prohibited at the time of the re-inputting. An object of the present invention is to provide a medium discriminating apparatus capable of improving the reliability of the apparatus by preventing a reduction in the acceptance rate due to the re-input of the damaged medium, the forged medium, and the altered medium.

According to a third aspect of the present invention, the reinsertion of the inserted medium after the return is judged based on a lapse of time, and the discrimination result of the medium is prohibited at the time of the reinjection. It is an object of the present invention to provide a medium discriminating apparatus capable of improving the reliability of the apparatus by preventing a reduction in the acceptance rate due to re-insertion of a damaged medium, a forged medium, and a modified medium.

[0007]

The invention according to claim 1 of the present invention is a medium discriminating apparatus for discriminating the authenticity of an inputted medium and summing up information on the result of the discrimination. And a re-introduction detecting means for detecting that the medium has been re-introduced after returning, and a tabulation prohibiting means for prohibiting tabulation of discrimination results of the medium when re-introduction of the same medium is detected by the re-introduction detecting means. It is characterized in that it is a medium discrimination device provided with.

According to a second aspect of the present invention, there is provided a medium discriminating apparatus for discriminating the authenticity of an inserted medium and summing up the information regarding the result of the discrimination, wherein the characteristic of the inserted medium is stored. And a counting prohibiting means for prohibiting counting of discrimination results of the medium when the characteristic amount of the re-input medium matches the characteristic amount of the medium stored in the characteristic storing means. It is a medium discrimination device.

The invention according to claim 3 of the present invention is a medium discriminating apparatus for discriminating the authenticity of an inserted medium and summing up information relating to the result of the discrimination, wherein the returned medium is within a predetermined time. It is a medium discriminating device that prohibits tabulation of discrimination results of the medium when the medium is re-entered.

[0010]

According to the invention described in claim 1 of the present invention, the above-mentioned re-insertion detecting means detects that the once-inserted medium is re-inserted after being returned, that is, re-injection of the same medium. The counting prohibition means prohibits counting of discrimination results of the same medium when re-input of the same medium is detected. When the medium thus input is re-input after being returned, aggregation of the discrimination results of this medium is prohibited, so that the reduction of the acceptance rate due to the re-input of the damaged medium, the counterfeit medium, and the altered medium is prevented. Therefore, there is an effect that the reliability of the device can be improved.

According to the second aspect of the present invention,
The above feature storage means stores the features of the input medium,
When the feature quantity of the re-input medium matches the feature quantity of the medium stored in the feature storage means, the aggregation prohibiting means prohibits aggregation of the discrimination result of the medium. In this way, the re-insertion of the inserted medium after the return is determined by the characteristic amount of the medium, and the aggregation of the discrimination result of the medium is prohibited at the time of the re-introduction. Therefore, the damage medium, the forged medium, and the altered medium are There is an effect that it is possible to improve the reliability of the device by preventing a decrease in the acceptance rate due to re-input.

According to the third aspect of the present invention,
When the returned medium is loaded again within the predetermined time, the aggregation of the discrimination result of the medium is prohibited. That is, since the re-input of the same medium is judged based on the elapsed time and the aggregation of the discrimination result of this medium is prohibited at the time of the re-input, the acceptance ratio by the re-input of the damaged medium, the counterfeit medium, and the altered medium is There is an effect that the deterioration can be prevented and the reliability of the device can be improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows an automatic ticket vending machine incorporating the medium discrimination apparatus of the present invention. In FIG. 1, the automatic ticket vending machine 1 installed for station service such as railways has a guide display 3 on a customer service panel 2 on the front thereof. Selection buttons 4 for purchasing various tickets, coin insertion slot 5, banknote insertion slot 6, card insertion slot 7, ticket ejection slot 8 for ejecting a ticket, cancel button 9 for canceling purchase, fishing tag Fishing tag discharge port 10 and saucer 1
1 are arranged respectively.

FIG. 2 shows a control circuit of the medium discriminating apparatus incorporated in the above-mentioned automatic ticket vending machine 1, in which a sensor 12 for converting the magnetic distribution pattern of the bill A inserted into the bill insertion slot 6 into an electric signal is provided. The sensor 12 is configured to obtain an electrical read waveform b from a bill A having a magnetic bar code a ... As shown in FIG.

The signal processing unit 13 connected to the next stage of the above-mentioned sensor 12 includes a filter circuit, a peak detection circuit, a difference detection circuit, etc., and the above-mentioned read waveform so that the characteristics of the bill A as a medium can be remarkably exhibited. b (electrical signal) is processed. The reading / determining unit 14 connected to the next stage of the above-mentioned signal processing unit 13 is based on the signal in which the characteristics of the banknote A are prominently expressed by the signal processing unit 13 described above, and the above-mentioned banknote insertion slot. The authenticity of the banknote A inserted in 6 is determined.

The CPU 20 drives and controls the timer 16 and the notification unit 17 according to the program stored in the ROM 15 based on the signal input from the reading / determination unit 14 described above, and the storage unit 18 stores the temporary storage unit 21 and the data total. The storage unit 18 stores the data format as shown in FIG. 4 in an updatable manner.

The above-mentioned data format (see FIG. 4) has a large number of areas. The first area e1 contains true banknote waveform data, the second area e2 contains inserted banknote waveform data, and the third area e3 contains. The number of true banknotes accepted, the number of false banknotes in the fourth area e4, the reject rate (judgment failure rate) shown in the following [Equation 1] for the fifth area e5, and the prescribed value x for the sixth area e6. Remember each.

[0018]

(Equation 1)

Here, the above-mentioned CPU 20 is the bill insertion slot 6
The reinsertion detecting means (see sixth step S6 in the flow chart shown in FIG. 5) for detecting that the banknote A inserted (inserted) into the banknote is reintroduced after being returned, and the reinsertion detecting means detects the same medium (the same banknote). ) Is detected again, the counting prohibition means (FIG. 5) for prohibiting the counting of the discrimination result of the banknote concerned.
It also serves as the seventh step S7 in the flowchart shown).

Further, the data summation unit 22 of the storage unit 18 shown in FIG.
After being discriminated by
The above-mentioned temporary storage unit 21 is a feature storage means for temporarily storing the features of the inserted banknotes A, and the above-mentioned seventh step S7 is for the reinserted banknotes A. The feature amount is the above-mentioned feature storage means (temporary storage unit 2
(See 1)), when it matches the characteristic amount of the bill A stored in (1), it also serves as a counting prohibition unit that prohibits the counting of the discrimination results of the bill.

The operation of the medium discriminating device for the automatic ticket vending machine 1 thus constructed will be described in detail below with reference to the flow chart shown in FIG. When the banknote A is inserted into the banknote insertion slot 6 shown in FIG. 1, the sensor 12 converts the magnetic distribution pattern of the inserted banknote A into an electric signal, and the signal processing unit 13 at the next stage has a remarkable characteristic of the banknote A. Process the electrical signal as it appears in.

In the first step S1, the reading / determining unit 14 executes reading of the sensor signal after signal processing, and in the next second step S2, the reading / determining unit 14 executes medium determination (authenticity determination). Then, in the next third step S3, the reading / determination unit 14 determines whether the inserted banknote A is true or false, and if it is determined to be true, it is determined to be false in the next fourth step S4. Then, the process shifts to another fifth step S5.

In the above-mentioned fourth step S4, the CPU 20 updates the data stored in the data totaling unit 22 in response to the true determination and ends the series of processing, while in the above-mentioned fifth step S5, the CPU 20 executes After storing the characteristics of the inserted banknote A in the temporary storage unit 21, the inserted banknote A is returned from the banknote insertion slot 6 once. Therefore, when the same banknote A is reinserted after the return, by repeating the flowchart, In this fifth step S5, the bill information at this time is compared with the temporary storage data one time before.

Next, in a sixth step S6, the CPU 20 causes the banknote information (characteristic amount of the banknote A) at this time to be inserted and the temporary storage unit 2.
It is determined whether or not the banknote information at the time of the previous insertion (feature amount of the banknote A received immediately before) temporarily stored in No. 1 is coincident with each other. On the other hand, the process proceeds to step S7, and when a mismatch is determined, the process proceeds to another eighth step S8.

In the above-mentioned seventh step S7, the CPU 20 prohibits the addition processing of the totalized data to the data totaling unit 22 in response to the maximum insertion detection, and returns the fake bill from the bill insertion slot 6 to perform a series of processes. To finish. On the other hand, the above-mentioned eighth
In step S8, the CPU 20 stores the information (feature amount) of the banknote A that is determined to be false (see the third step S3) in the temporary storage unit.

Next, in a ninth step S9, the CPU 20 updates the aggregated data of the data aggregating unit 22, and in the next tenth step S10, the CPU 20 checks the aggregated data. Next, in an eleventh step S11, the CPU 20 determines whether or not the reject rate is within a range of a preset prescribed value x, and if the reject rate is within the prescribed range, the series of processes is ended, while the reject rate is prescribed. When it exceeds the value x, the process proceeds to the next twelfth step SS12.

At the twelfth step S12, the CPU 20
Responds to the fact that the reject rate (value inversely proportional to the acceptance rate) exceeds the prescribed value x, drives the notification unit 17 to generate an alarm for the purpose of notifying that the acceptance rate has dropped, and a series of The process ends.

In short, the re-insertion detecting means (see the sixth step S6) described above reinserts the medium (see banknote A) that was once inserted, that is, reinserts the same medium (same banknote). Then, the counting prohibiting means (see the seventh step S7) described above prohibits counting of the discrimination result of the bill when the re-insertion of the same bill is detected. When the inserted banknote A is re-inserted after being returned, the counting of the discrimination result of the banknote A is prohibited, so that the reduction of the acceptance rate due to the reinsertion of the damaged banknote, the counterfeit banknote, and the modified banknote is prevented. Thus, there is an effect that the reliability of the device can be improved.

Further, the above-mentioned characteristic storage means (temporary storage unit 2
1) stores the characteristics of the inserted banknote A, and the counting prohibiting means (see the seventh step S7) described above stores the characteristic amount of the reinserted banknote A in the characteristic storage means (see the temporary storage unit 21). When it coincides with the characteristic amount of the banknote A stored in, the tabulation of the discrimination result of the banknote A is prohibited.

Since the reinsertion of the thus inserted banknote A after the return is judged by the characteristic amount of the banknote A and the discrimination result of the banknote A is prohibited at the time of reinsertion, the above-mentioned damaged banknote, There is an effect that it is possible to improve the reliability of the device by preventing a reduction in the acceptance rate due to the re-input of counterfeit bills and altered bills.

Further, in the device configured to issue an alarm when the reject rate exceeds the specified value x as shown in the embodiment, the above-mentioned artificial repetitive input causes an erroneous alarm which is not originally necessary. That is, there is an effect that it is possible to favorably prevent the occurrence of a false alarm due to repeated insertion of the same defective medium.

FIG. 6 is a flow chart showing another embodiment of the medium discriminating apparatus of the present invention. In this embodiment also, the circuit device shown in FIGS. 1 to 4 is used. In this embodiment, the CPU 20 described above is returned to the time counting start means (see the third step S23 of the flowchart shown in FIG. 6) for starting the time counting by the timer 16 triggered by the false determination of the input medium. The same as the re-insertion detecting means (see the fourth step S24 in the flowchart shown in FIG. 6) that detects re-insertion based on the medium (see banknote A) being inserted again within a predetermined time. When the re-insertion of the medium (the same banknote) is detected, the totalization prohibition means (the sixth step S26 of the flowchart shown in FIG. 6) for prohibiting the totalization of the discrimination result of the medium (see the banknote A).
(Refer to NO judgment in)).

The operation of the medium discriminating apparatus configured as described above will be described in detail below with reference to the flowchart shown in FIG.
When a banknote A as a medium is inserted from the banknote insertion slot 6 of the automatic ticket vending machine 1 shown in FIG. 1, the sensor 12 converts the magnetic distribution pattern of the inserted banknote A into an electric signal, and a signal processing unit in the next stage. Reference numeral 13 performs signal processing on an electric signal such that the characteristic of the bill A is prominently displayed.

In the first step S21, the reading / determining unit 14
Executes the signal-processed waveform reading, and in the next second step S22, the reading / determining unit 14 inserts the inserted bill A
The true / false judgment of is executed. When it is determined to be true, the process proceeds to the seventh step S27, and when it is determined to be false, the process proceeds to the next third step S23. The above-mentioned seventh step S
At 27, the CPU 20 responds to the true discrimination, and the data totaling unit
On the other hand, the CPU 20 turns on the timer 16 in response to the false determination in the above-described third step S23 while executing the data totaling process in 2.

Next, in a fourth step S24, the CPU 20 determines again whether the bill A has been inserted while the timer 16 is ON, and if the bill A has not been inserted within a preset time, a series of If it is determined that the timer 16 is turned on again while the processing is ended, the next fifth step S
It moves to 25. This re-insertion includes both the re-insertion of the same banknote as the previous time and the insertion of a completely different banknote from the previous time, so the following processing is executed.

That is, in the fifth step S25, reading /
The determination unit 14 executes signal-processed waveform reading, and in the next sixth step S26, the reading / determination unit 14 determines the authenticity of the bill A inserted within the time (while the timer 16 is ON). During the true determination, the process proceeds to the seventh step S27, while during the false determination, the series of processes is ended for the purpose of prohibiting the data aggregation by regarding it as the re-insertion of the false banknote previously returned. In the above-mentioned seventh step S27, the CPU 20
Performs a data totaling process in the data totaling unit 22 corresponding to the true determination, and then ends the series of processes.

As described above, when the returned medium (see the bill A) is re-inserted within the predetermined time (while the timer 16 is ON), the counting of the discrimination result of the bill is prohibited. In other words, re-inserting the same bill is judged based on the passage of time,
Since the counting of the discrimination results of the banknotes is prohibited at the time of recharging, it is possible to prevent the reduction of the acceptance rate due to the recharging of the damaged banknotes, the counterfeit banknotes, and the modified banknotes, and improve the reliability of the device. There is.

In the correspondence between the configuration of the present invention and the above-described embodiment, the medium of the present invention corresponds to the banknote A of the embodiment, and hereinafter, likewise, the reinsertion detecting means is controlled by the CPU 20 in the sixth step S6. (See FIG. 5), fourth step S2
4 (see FIG. 6), the aggregation prohibiting means is the CPU 20.
It corresponds to the seventh step S7 (see FIG. 5) by the control and the NO determination (see FIG. 6) in the sixth step S26, and the feature storage means corresponds to the temporary storage section 21. The configuration is not limited to the example configuration.

For example, in the above embodiment, the automatic ticket vending machine 1 is shown as an example of a device having a built-in medium discrimination device.
It may be applied to other medium processing devices such as automatic vending machines, ATMs, and automatic money changers. As the medium, in addition to the banknote A, securities such as checks, coins, and other mediums such as cards may be used. In addition to the pattern converted into an electric signal by the sensor 12 described above, another pattern such as a reflected light pattern may be used. Further, instead of detecting the interval of the medium loading time by the timer 16 described above, another sensor detects that the user continues to be on the customer service side of the device, and re-loading of the medium is detected based on the detection condition by this sensor. It may be configured as appropriate.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an automatic ticket vending machine including a medium discriminating device of the present invention.

FIG. 2 is a block diagram of a control circuit of the medium discrimination device.

FIG. 3 is an explanatory diagram showing an example of a read waveform.

FIG. 4 is an explanatory diagram showing a data format of a storage unit.

FIG. 5 is a flowchart showing an example of medium discrimination processing of the present invention.

FIG. 6 is a flowchart showing another embodiment of the medium discrimination processing of the present invention.

[Explanation of symbols]

 21 ... Temporary storage unit A ... Banknotes S6, S24 ... Reinsertion detection means S7 ... Counting prohibition means

Claims (3)

[Claims] 1. A medium discriminating apparatus for discriminating the authenticity of an input medium and summing up information relating to the result of the truth.
Re-insertion detection means that detects that the inserted media has been re-inserted after returning, and prohibits tabulation of the discrimination results of the same media when re-insertion of the same medium is detected by the re-insertion detection means And a medium discriminating apparatus including means. 2. A medium discriminating apparatus for discriminating the authenticity of inserted media and summing up information on the result of the truth.
When the characteristic storage means for storing the characteristics of the inserted medium and the characteristic quantity of the re-inserted medium match the characteristic quantity of the medium stored in the characteristic storage means, prohibiting the aggregation of the discrimination results of the medium. A medium discrimination apparatus having a counting prohibiting means. 3. A medium discriminating device for discriminating the authenticity of inserted media and summing up information on the result of the truth.
A medium discriminating apparatus that prohibits tabulation of discrimination results of a medium when the returned medium is inserted again within a predetermined time.