JPH03186988A - Counter for paper sheet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention examines paper sheets of the same type (hereinafter referred to as regular notes) for the presence or absence of light type paper sheets (hereinafter referred to as previous type notes). This relates to a paper sheet counter that automatically counts paper sheets, and is particularly suitable for counting banknotes.

[Conventional technology]

):) A paper sheet counting machine that automatically counts sealed genuine bills while checking for the presence or absence of dissimilar bills is known as the Jikoko 6.
The one described in Japanese Patent No. 3-43566 is known. In this device, as shown in FIG. 5, a dissimilar bill detection device ( A stopper (not shown) to prevent the bill from being turned over when a different type of bill is detected by the bill (not shown)
is solenoid driven and counting is immediately stopped. Then, the back side of the last leaf that has been turned over is photographed using a mirror M, and the staff member OP visually confirms it. If it is confirmed through this visual check that the ticket is a pseudo-different kind of bill (genuine bill), the counting and the different kind of bill detection are continued by operating the restart button.

[Problem to be solved by the invention]

However, since the above-mentioned detection of different types of bills is performed during early flipping, misjudgment often occurs.

Therefore, in order to reliably remove foreign tickets, strict criteria tend to be applied, and as a result, a normal bill is detected as a foreign ticket, often resulting in a stoppage of operation. And each time this operation stoppage occurs,
The system requires visual confirmation by staff and manual restart, which is extremely complicated work and reduces counting efficiency.

The present invention has been made to solve these problems, and it not only reliably detects different types of notes, but also detects subsequent paper sheets that have been detected as Yd type notes and turns out to be genuine notes. It is an object of the present invention to provide a paper sheet counter that can quickly return to counting operation.

[Means to solve the problem]

The present invention provides a paper sheet counting machine that counts paper sheets placed in a device A in a holder while turning them one by one using a sheet turning means including a plurality of suction shafts that rotate and revolve while adsorbing the sheets.] A pattern signal output means for optically detecting patterns on one side and the opposite side of paper sheets that are sequentially turned over and counted one by one and outputs a pattern signal; The reference pattern signal storage means that stores the reference pattern of the opposite side, the one side pattern signal outputted from the pattern signal output means, and the one side reference pattern taken out from the reference pattern signal storage means are compared. A detection means for detecting a paper sheet that may be a ticket, and a method for peeling off subsequent paper sheets that have not yet been turned over when the detection means detects a paper sheet that may be a different type of ticket. and a pattern signal obtained by the pattern signal output means from the opposite side of the paper sheet detected as a paper sheet that may be a different type of paper sheet, and a reference pattern signal storage means. A confirmation means for confirming whether the paper sheet is a different type of note by comparing it with the obtained standard pattern on the opposite side, and this confirmation means makes it clear that the paper sheet is a pseudo different type of note (genuine note). The present invention is characterized in that it includes a control means for canceling the turning prevention means to continue counting, detecting, and confirming subsequent paper sheets.

The control means operates the turning prevention means when the detection means detects a paper sheet that may be a different type of ticket.
It is preferable that the suction shaft be rotated by at least two rotations to reliably move the detected different type of bill to a position where the detection of the opposite side is performed.

Further, the pattern signal output means preferably includes a variable angle light emitter and a light receiver for optically detecting patterns on one side and the opposite side of the paper sheet.

[For production]

When a paper sheet is turned over with the suction shaft, if the detection means detects a paper sheet that may be a different type of bill, the turning-up prevention means prevents the next sheet from being turned over. The opposite side of the paper sheet detected is optically detected. If a confirmation judgment is made based on this detection result and it is found that the ticket is not a hole ticket, the turning-up prevention means is released and the counting operation is automatically restarted. Therefore, it is rare for a normal bill to be mistakenly detected as a different type of bill, and - once it is determined that the detected paper sheet is not a different type of bill, counting is automatically restarted without any operator intervention. Therefore, counting efficiency is improved.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

In the following explanation, the - side and the opposite side refer to the side facing the suction axis of the banknote set in the holder and the opposite side, and are different from the absolute front and back sides of the banknote. I am using it.

FIG. 1 is a block diagram showing the basic configuration of a banknote counting machine as an embodiment of the present invention.

The banknotes to be counted are sequentially turned over one by one by the banknote turning means 30, and at this time, a pattern signal corresponding to the type of banknote is obtained from the surface of each banknote by the pattern signal output means, as will be described later.

FIG. 4 is a plan view showing the state of a mechanical section forming such a banknote flipping means 3o. When a banknote bundle P is loaded into the holder 1 at the banknote loading position and a start button (not shown) is pressed, the vacuum pump begins to rotate and the holder 1 begins to rotate along the guide 6, reaching the counting start position A. It will stop when it reaches that point. At this time, the holder is biased by a spring or the like so that a portion of the frontmost part of the banknote comes into contact with the suction shaft 7. Furthermore, the fourth
In the figure, reference numeral 4 denotes a paper presser bar for making it easier to turn over the banknote bundle P one by one. Next, the banknote P comes into contact with the suction port of the suction shaft 7 and blocks the suction port, and when the suction pressure inside the suction shaft 7 exceeds a certain specified value, the vacuum switch operates and outputs an output signal, and this signal causes the motor to start. As the rotor 9 rotates, the rotor 9 starts rotating, and the suction shaft 7 rotates on its own axis and revolves around it, attracts and flips off the banknotes one by one, and moves them to position B. Further, when the banknote P contacts the suction port of the suction shaft 7 and blocks the suction port, the irradiation light beam 12 is emitted from the light emitter 10 provided near the banknote P toward the designated area QR on the banknote surface, The reflected light from this area QR is reflected by the receiver 1.
The light is received by 1.

Furthermore, a stopper 18 is provided as a turning-over prevention means 20 to prevent unsucked banknotes from being attracted and turned over when a banknote that seems to be a different type of banknote is found. When a banknote is detected, the solenoid 16 is energized to move around a fulcrum 17, so that the tip of the stopper 18 presses the end of the banknote that has not been sucked.

FIG. 3 shows a designated region QR as an identification range for specifying the denomination of a banknote.As mentioned above, the irradiation light beam 12 irradiates at least this designated region, and the reflected light from this designated region is received by each element of the photoreceiver 1], the output from each element is scanned, compared with a predetermined reference value, coded as bright or dark, and binarized, and this specified area is further divided into multiple sections. Then, the binarized signals are counted for each section to obtain a pattern signal. In this way, the light emitter 10 and the light receiver 11 constitute a pattern signal output means 40.

In addition, another set of light emitting device 13 and light receiving device] 4 is provided, and the irradiation light beam 15 from the light emitting device 13 hits the portion corresponding to the designated area QR on the back side of the turned-over banknote P at position B. It is designed to irradiate.

Note that although a two-dimensional image sensor is usually used as the light receiver used to obtain the pattern signal, a -dimensional image sensor can also be used.

This pattern signal is then transmitted to the pattern signal output means 40.
from there to the detection means 60.

0 The detection means 60 determines the denomination by comparing this pattern signal with a pattern (reference pattern) preset for each denomination in the reference bang signal storage means 50.

This reference pattern signal storage means 50 has normal button storage areas 50a for the front side and for the back side, respectively.
, 5oc, special pattern storage areas 50b and 50d for the front side and the back side, respectively.

For the opposite side, pattern storage areas 50e and 50f are provided for the front side and the back side, respectively.

Here, for the - side and for the opposite side,
The reason for providing the back side is to deal with the fact that the side of the banknote loaded in the holder is generally not specified and also to deal with the fact that the front and back sides are mixed in a banknote bundle.

This special pattern is a reference pattern that is specially used to identify denominations in situations where there are many misjudgments, such as the first coin or after the 99th coin, and is different from the normal reference pattern used for normal denomination determination. It is. This was established in consideration of the fact that the first sheet set state and suction state are generally unstable, and applying strict standards is likely to result in erroneous judgments. The storage areas 50b and 5 described above have a looser judgment condition than
It is set within 0d.

As a result, when compared with the pattern signal of the first bill,
Multiple denominations are often output as matching candidates. When a plurality of denominations are extracted as the first banknote in this manner, information on the plurality of denominations is stored in the first banknote denomination storage means 70.

For the second banknote, unlike the first banknote, the normal standard pattern is extracted from the storage areas 50a and 50c of the standard pattern signal storage means 50 to identify the denomination. Therefore, the denomination of the second coin is usually specified to one type. The detection means 60 again determines whether or not the denomination identified in this way matches any of the denominations registered in the first banknote denomination storage means 70 described above. This is determined to be the denomination of the bill bundle, and the determined denomination information is stored in the determined denomination storage means 80. The denomination identification for the third and subsequent denominations is performed while comparing with the reference pattern stored in the reference pattern signal storage means 50 corresponding to the denomination stored in the determined denomination storage means 80. If the pattern signals do not match because the denominations are different, a command is issued to the control means 100 to stop counting banknotes, and the control means 100 gives a stop command to the banknote turning means 30 to stop counting banknotes of different types. Stop counting operation. At this time, in response to a command from the control means 100, the stopper 18 forming the turning-over prevention means 20 is moved to the fulcrum 17 by the operation of the solenoid 16.
The suction shaft 7 rotates around , and holds down the banknotes that are about to be turned over by the suction shaft 7 to prevent them from being turned over.

In this state, the pattern signal output signal output means 40
The confirmation means 90 compares the pattern signal for the opposite side of the banknote output from the banknote with the reference pattern signal for the opposite side distributed from the recording areas 50e and 50f of the reference pattern signal storage means 50. As a result, it is confirmed whether or not the banknote determined to be a ``class'' note in the previous steps is a ``lambda type'' note.

The counting operation is performed when the counting contact 2 provided around the rotor 9 passes near the counting proximity switch 3 provided near the rotor 9. Note that when bills of different denominations are detected, a stop signal from the control means 100 is transmitted to the proximity switch 3, and counting of different denominations is stopped. Therefore, only banknotes of the correct denomination will be counted.

Next, the counting operation in the embodiment shown in FIGS. 1 and 4 will be explained with reference to the flowchart in FIG. 2.

First, the denomination of the first banknote is determined (step 541).
). In this denomination determination, as described above, it is preferable to prepare a normal reference pattern and a special reference pattern different from the normal reference pattern as the judgment pattern, and to use this special reference pattern only when the denomination does not match the normal reference pattern. This special reference pattern can be selected from various types, such as one that has a looser standard than the normal reference pattern, or one that uses a judgment formula that makes a rough judgment.

In the case of this embodiment, the denomination is initially determined using the normal reference patterns for the front side and the back side (step 54).
1) If the denomination cannot be determined as a result (step 542), a special determination is made (step 543). If this special determination is possible (step 544), and a plurality of denominations of the first banknote are specified (step 545), the plurality of denominations are flagged on (step 546).

At this time, it does not matter which pattern matches the front or back. Note that as a result of the determinations in steps S42, S44, and S45, if the denomination of the first banknote is determined to be one type, this denomination is determined as the denomination of the banknote bundle, and step 55
Go to 1.

If the determination is two or more denominations, then a determination operation is performed for the second bill (step 547).

Determination of the second and subsequent banknotes is usually performed using a reference pattern, and if the denomination can be determined and only the - denomination is determined (steps 548 and 549), the denomination is already 1.
It is determined whether the denomination flag that is turned on as the 5th banknote matches or not (step 5).
50). That is, since a plurality of denomination flags are set as denomination candidates for the first bill, it is determined whether the denomination of the second bill corresponds to any of the flagged denominations.

If the determination result in steps S44, S48 to S50 is negative, the counting operation is stopped and the process moves to confirmation determination. That is, the solenoid 16 moves the stopper 18 to the fourth position.
The rotor 9 is moved from the position shown by the dashed line to the position shown by the solid line to prevent the next banknote from being adsorbed after the banknote determined to be abnormal, and the rotor 9 is stopped at the regular position (step 571). At this time, the vacuum valve is opened to reduce the suction pressure inside the suction shaft to prevent adsorption. Here, the fixed position refers to the rotor position where it is possible to detect the pattern on the opposite side of the banknote that has been determined to be abnormal and has been turned over. It is convenient to use the opposing position as the means for detecting the position of the rotor 9 can also be used for detecting the fixed position. 6. As a method of stopping at this fixed position, for example, the method disclosed in Japanese Utility Model Application No. 56-88372 or specially equipped vehicle 1-2611 is available.
A known method disclosed in Publication No. 7 and the like can be used.

Note that the banknote P' that has been determined to be abnormal is temporarily in the state shown by the broken line in FIG. It is preferable to stop the suction shaft when at least the second suction shaft faces the bill.

In this state, when the opposite side of the banknote is irradiated with light 15 from the light emitter 13, the reflected light is received by the light receiver 14, and the pattern signal is stored in the reference pattern signal storage means 50 for the opposite side. pattern storage areas 50e for front and back surfaces;
The confirmation means 90 compares the pattern with the reference pattern for the back side of each denomination taken out from 50f, and performs a confirmation judgment (step 572). In this confirmation judgment, it is possible to identify one denomination (step 573), and if the identified denomination is the first banknote (step 574), then that denomination is set as the denomination of the banknote bundle. Since it is OK, the stopper is released and counting is automatically restarted (step 576). On the other hand, if the specified denomination is not the first banknote, it is checked whether the specified denomination is included in the denomination flag that is turned on as the first banknote (step 575), and a match is made. If so, that denomination is determined, and the process proceeds to step S76 to automatically restart counting, and at the same time, the process proceeds to step S51 to determine the denomination of the banknote bundle.

Also, the judgment result is not only for one denomination (step 87
3) When the denomination of the identified banknote does not match the denomination of the first banknote (step 575), the counting control means 100 determines that a real foreign banknote or a defaced banknote is mixed in, and issues an alarm. Notify the operator of the inclusion of abnormal notes (step 56)
5).

When the denomination of the banknote bundle is determined in this manner (step 551), this denomination is stored in the determined denomination storage means 80, and a determination operation is performed for the third and subsequent banknotes. The judgment operation for the third and subsequent banknotes is performed by determining that the denomination of the first banknote matches the denomination of the second banknote. The normal reference patterns for the front and back sides are read out from the reference pattern signal storage means 50 and compared with each other (step 552). Then, the denomination can be determined (step 553), and if the determined denomination is not two or more types (step 557), the determined denomination matches the denomination stored in the determined denomination storage means 80. It is determined whether or not the banknotes are counted (step 558), and counting operations are performed sequentially until the counting of banknotes is completed (step 859).

As mentioned above, a normal banknote bundle is made up of 100 banknotes, and when the counting operation approaches the end and reaches around the 99th banknote, the denomination may change due to misalignment of the banknotes, etc. Judgment operation tends to become unstable. Therefore, if the denomination cannot be determined in step 553, it is checked in step S54 whether or not the banknote is the 99th or later banknote, and if it is the 99th or later banknote, the determination condition is changed to the normal standard pattern. The judgment is changed from the judgment based on the special reference pattern to the judgment based on the special reference pattern (Step 9 S55). As a result of the judgment based on this special reference pattern, if the denomination can be determined (step 356), the judgment is determined to be normal unless the judgment result is determined to be two or more denominations in step S57, and the judgment in step 858 is performed. Move.

Note that if the determination in step S57 is two or more denominations, or if the denominations do not match in step S58, the stopper 18 is moved from the position shown by the dashed line in Figure 4 to the position shown by the bold line. In addition to preventing the next bill from being adsorbed after the bill that has been moved to the position and determined to be abnormal,
The rotor 9 is stopped at a fixed position (step 560). In this state, the opposite side of the banknote is irradiated with light 15 from the light emitter 13, the reflected light is received by the light receiver 14, and the pattern signal is sent to the front side of each denomination as described in step S72. , and a reference pattern for the back side, and a confirmation judgment is performed (step 561).

It is checked whether one denomination can be identified in this confirmation judgment (step 562), and if it can be identified, it is checked whether the identified denomination matches the denomination of the banknote 0 bundle determined in step S51. (Step 563)
, when they match, the solenoid is de-energized to release the stopper, the vacuum valve (not shown) is closed, and when the suction pressure exceeds a predetermined value, the vacuum switch is activated, the rotor rotates forward, and the counting operation is automatically performed. Resume (step 564
).

On the other hand, if it cannot be identified as one denomination by the confirmation judgment (step 562), or if the identified denomination does not match the denomination of the banknote bundle (step 563), it is determined whether the banknote is a real nine-class note or a defaced note. It is determined that the abnormal note has been mixed in, and an alarm is issued to notify the operator that the abnormal note has been mixed in (step 565).

Note that the flowchart in Figure 4 initially uses the normal reference pattern as the first judgment pattern, and only when the normal reference pattern does not match the special reference pattern is used for judgment. It is also possible to prepare a reference pattern and use only this pattern to determine the first bill. Further, although the determined denomination storage means 80 stores only the determined denomination, it may also store not only the denomination but also the base Hp pattern signal of the denomination.

Further, a special reference pattern may be prepared for the reference pattern for the opposite side as well as the reference pattern for the one side. Note that it is generally not possible to share the reference pattern between one side and the opposite side. This is because the detection area of the banknote is partial as shown in FIG. 3, and if the directions are different, the patterns on the front and back sides will not match.

In addition, if the front and back sides of the banknotes are not mixed, and the side of the banknote bundle is always identified and counted when loaded into the holder, the reference pattern for the - side should be used for the front side and the back side. It is only necessary to prepare one side for use and a reference pattern for the other side as a reference pattern for the opposite side.

Further, in the above-described embodiment, the denomination of the banknote bundle is automatically determined and then it is determined whether different types of bills are mixed, but the denomination of the banknote bundle may be separately set manually.

Further, although the confirmation judgment after the redundancy judgment was performed individually, the judgment may be made comprehensively.

For example, if the normal judgment matches two or more denomination patterns, the confirmation judgment on the opposite side also matches two or more denominations, there is only one denomination common to both, and it is already Counting may be restarted when the denomination matches the determined denomination.

In addition, since the confirmation judgment on the opposite side can take more time between judgments than normal judgment, it is possible to use detailed judgments (judgment methods and detection methods that require more time than normal judgments). can.

Furthermore, in the example, the confirmation judgment on the opposite side is performed using a light emitting device and a light receiver that are different from those used for judgment on the side side.
- The light emitter and light receiver for surface side determination are made rotatable, and the angle can be changed using a solenoid, motor, etc., so that only one set of light emitter and light receiver can be used.

〔Effect of the invention〕

As described above in detail based on the embodiments, according to the present invention, when the detection means detects a paper sheet that may be a different type of ticket, the turning prevention means prevents the subsequent paper sheet from being turned over. 3. The opposite side of the detected paper sheet is optically detected, a confirmation judgment is made based on the detection result, and if it is determined that the paper sheet is not of a different type, the counting operation is automatically restarted. This reduces the possibility of genuine bills being mistakenly detected as dissimilar bills, and also reduces the need for the operator to troubleshoot when it turns out that a paper sheet for which a -star has been detected is not a promoted ticket. Counting efficiency is improved because counting is automatically restarted without any interruption.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the basic configuration of the main parts of the device of the present invention, Fig. 2 is a flowchart for explaining the operation of an embodiment of the present invention, and Fig. 3 shows the designated area of a banknote used for banknote identification. FIG. 4 is a plan view showing the structure of the mechanical part of the banknote counting machine used in the present invention, and FIG. 5 is a perspective view showing the structure for performing the conventional confirmation judgment. 1... Holder, 7... Suction shaft, 10.13... Light emitter, 11.1.4... Light receiver, 16... Solenoid, 18... Stopper, 20... Turning deterrent means,
30...Banknote turning 4 means, 40...Pattern signal output means, 5o...
・Reference pattern signal storage means, 50a... Normal reference pattern storage area for - side surface, 50b... Special reference pattern storage area for - side surface, 50c... Normal pattern storage area for - side side back surface. , 50d... Special pattern storage area for - side and back side, 50e... Reference pattern for opposite side front side, 5Of... Reference pattern for opposite side back side, 60 detection means, 70... 1 sheet banknote denomination storage means;
80... Determined denomination storage means, 9o... Confirmation means, 1
00...controller stage.

Claims (1)

[Scope of Claims] 1. A paper sheet counting machine that counts paper sheets loaded in a holder while turning them one by one using a paper sheet turning means that includes a plurality of suction shafts that revolve while rotating on their own axis. a pattern signal output means for outputting a pattern signal by optically detecting a pattern on one side and an opposite side of paper sheets that are sequentially turned over and counted one by one; and a plurality of types of paper sheets. a reference pattern signal storage means storing reference patterns for one side and an opposite side for each side; a one side pattern signal outputted from the pattern signal output means; and a one side reference pattern taken out from the reference pattern signal storage means; a detection means for detecting a paper sheet that may be a different type of ticket by comparing the paper sheets that may be a different type of ticket; a turning-up prevention means for preventing the leaf from being turned over; a confirmation means for checking whether the paper sheet is a different type of note by comparing it with the reference pattern on the opposite side obtained from the reference pattern signal storage means; 2. A paper sheet counter comprising: control means for canceling the turning prevention means to continue counting, detecting, and confirming subsequent paper sheets when it is determined that the paper sheet is turned over. 2. When the detection means detects a paper sheet that may be a different type of bill, the control means rotates the suction shaft at least two times with the turning prevention means operated, and detects 2. The paper sheet counter according to claim 1, wherein the paper sheet counter is configured to reliably move the paper sheets that have been removed to a position where the opposite side is detected. 3. Claim 1 or 2, wherein the pattern signal output means comprises an angle-variable light emitter and a light receiver for optically detecting patterns on one side and the opposite side of the paper sheet.
The paper sheet counting machine described.