JPH0762875B2 - Discriminating device in bill counting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to a banknote counter, and in particular, performs counting while reading an optical pattern on the surface of a banknote to detect the presence / absence of mixed-type banknotes, double feed, and the like. The present invention relates to a bill counting machine.

"Prior Art" Generally, a bill counting machine sucks and flips bills one by one by vacuum pressure in a suction shaft that revolves around its axis while revolving, and also counts bills of different denominations. It has a function to check whether or not is mixed.

Conventionally, as a bill counting machine having such a function, the present applicant has already provided a "discriminating device in a bill counting machine" as shown in Japanese Utility Model Laid-Open No. 60-104979. Further, as a general paper sheet discriminating device, a device shown in "paper sheet discriminating device" as disclosed in JP-A-60-61882 is known.

The discrimination device in the bill counting machine shown in the former is designed to read the pattern of the bill surface in a line shape near the portion attracted to the suction shaft, and the read data is a reference stored in advance. By comparing with the data,
The denomination and the front and back are distinguished.

Further, the latter paper sheet discriminating apparatus is one in which a magnetic head and a photo sensor for linearly detecting the surface pattern of the banknote are provided in the middle of a pair of belts that convey the banknotes one by one with the banknote sandwiched therebetween. Therefore, like the discrimination device in the bill counting machine, by comparing the detection data of the magnetic head and the photosensor with the reference data stored in advance, the denomination and the front and back are discriminated. .

[Problems to be Solved by the Invention] By the way, in such a discriminating apparatus, the pattern on the bill surface is read by one fixed line, and the position of this line is determined by the denomination and the front and back sides. Since it is fixedly set according to the form of the bill to be discriminated, for example, when the bill to be discriminated is changed from, for example, Japanese yen bills to US dollar bills, the position of sensors for obtaining a line Modifications were necessary, which sometimes necessitated design changes to the device.

The present invention has been made in view of the above circumstances, and banknotes having various aspects (for example, domestic or foreign banknotes) by selecting and extracting a plurality of line data.
An object of the present invention is to obtain a discriminating device in a bill counting machine which can discriminate with high accuracy and at high speed.

[Means for Solving the Problem] In order to achieve such an object, according to the present invention, in a bill counting machine that counts while bills loaded in a holder are attracted to a suction shaft and flipped one by one, the bills are loaded in a holder. In addition, a large number of lamps that irradiate the surface of the banknote immediately before being sucked by the suction shaft and a large number of line-shaped image sensors are arranged in a direction orthogonal to the line, and the light rays reflected on the surface of the banknote are detected in a plane. And a two-dimensional area sensor that outputs data indicating the surface of a banknote, and the positions of a plurality of different lines that should be selected and designated from the data indicating the surface of the banknote detected by the area sensor are stored as reference position data. A reference data storage unit for storing reference line data to be compared with line data of a line selected and designated by the reference position data; Based on the reference position data stored in the storage means, a plurality of different lines are designated from the data indicating the bill surface detected by the area sensor, and the data indicating the bill surface along the designated line is line data. Line data output means for outputting the line data output means, line data storage means for temporarily storing the line data output from the line data output means, and line data temporarily stored in the line data storage means for the reference data storage means. The reference line data stored in the reference line data is compared with the position of the line indicated by the reference position data, and the comparison determination means for determining the bill based on the comparison result is provided. .

[Operation] According to the present invention, based on the reference position data stored in the reference data storage means, the line data output means specifies a plurality of different lines from the data indicating the bill surface detected by the area sensor. Then, the line data is selectively output as line data, and then the line data storage means temporarily stores the line data output from the line data output means. On the other hand, the comparison and determination means compares the line data temporarily stored in the line data storage means with the reference line data stored in the reference data storage means in correspondence with the position of the line indicated by the reference position data. The bill is discriminated based on the comparison result.

That is, in the discriminating apparatus of the present invention, when a plurality of different lines are designated from the data indicating the surface of the bill detected by the area sensor, and the lines are selectively taken out as line data, the case of different bills ( US banknotes,
Even if it is a Japanese bill, etc., by replacing the reference data storage means (ROM64 of the embodiment), the detection area can be changed without changing the position of the sensor for detecting the surface of the bill. Can be appropriately set according to the form of the banknote (US banknote, Japanese banknote, etc.). Further, in the discrimination device of the present invention, instead of comparing and discriminating all of the data detected by the area sensor with the corresponding reference data, a plurality of different lines are selected from the data indicating the bill surface detected by the area sensor. Since it is specified and selectively extracted as line data and compared with the corresponding reference line data, as a result, the time required for comparing and determining the data can be shortened, and the speed of the comparison and determination process can be increased. It is also possible to plan.

[Example] The present invention will be described below based on an example shown in Figs. 1 to 10.

First, the structure of the banknote counter mechanism will be described with reference to FIG. 1 to FIG. 3. In this counter mechanism, the banknote S is placed on the holder 1 and the holder 1 is horizontally swung about the axis 2 1 is moved to the counting position shown by the solid line or the standby position shown by the chain line in FIG. 1, and when the holder 1 is at the counting position, the rotary cylinder 3 is rotated counterclockwise in FIG. Meanwhile, the suction shaft 5 on the rotary cylinder 3 is rotated clockwise about the shaft 6 and a vacuum pressure is applied to the suction shaft 5 to count the banknotes S on the holder 1 one by one while counting. At the same time, it has a basic configuration in which the reflected light of a light beam applied to the surface of the banknote S from a light projector to be described later is read by a light receiver to identify the banknote.

The holder 1 is provided with a base plate 1a that supports the banknote S from the back side (the side opposite to the suction shaft 5), and the surface 1b of the base plate 1a.
Are formed in black so that the reflected light level becomes low.

The rotary cylinder 3 and the shafts 4 and 6 of the suction shaft 5 are formed in a hollow shape as shown in FIG. 3, and are connected to a suction port 9 of a vacuum pump 8 via a suction pipe line 7, By the vacuum pressure of the vacuum pump 8 acting on the banknote S through the opening 10 provided in a part of the outer circumference of the suction shaft 5,
The bill S is attracted to the suction shaft 5. A pressure sensor 11 is provided in the middle of the suction pipe line 7. The pressure sensor 11 detects whether or not the vacuum pressure in the suction pipe line 7 has risen to such an extent that a bill can be sucked. It has become so.

On the other hand, the exhaust port 12 of the vacuum pump 8 has an exhaust pipe line.
An exhaust nozzle 14 is provided at the tip of the exhaust pipe line 13 for blowing exhaust gas to the side surface of the banknote S to facilitate separation of the banknotes S from each other. A solenoid valve 16 is provided in the middle of 13 to prevent exhaust noise from being generated from the exhaust nozzle 14 by switching exhaust gas to the discharge port 15 when bills are not being counted.

A pair of position regulating pieces 5a is fixed to each of the suction shafts 5 as shown in FIGS. 1 to 3. The position restricting piece 5a is provided so as to project from the side surface of the suction shaft 5 and sandwich the opening 10 of the suction shaft 5 therebetween, and the outside air is sucked from the opening 10 to the suction shaft 5. When a bill is adsorbed, the bill is supported from the side to prevent the bill from collapsing or bending.
Then, the position regulating piece 5a thus holds the bill in which the suction shaft 5 has been suction-separated to maintain a standing state, thereby detecting whether or not the paper is double-fed (the bill is suction-separated in FIG. 1). The banknote is positioned at the position Sa).

Further, an operating piece made of a magnetic material is provided on the outer circumference of the rotary cylinder 3.
A plurality of 17 are attached, and depending on whether or not these operating pieces 17 operate the magnetic sensor 18, each suction shaft 5 is in a standby position (the opening 10 faces the bill and the inside of the suction shaft 5 is the vacuum pump 8). It is detected whether it is in a communicating position) or a starting position (a position immediately before the opening 10 faces the bill and the inside of the suction shaft 5 is shut off from the vacuum pump 8). It is like this.

In FIG. 3, reference numeral 19 is a counting motor for driving the rotary cylinder 3 via the belt 20, reference numeral 21 is a pump motor for driving the vacuum pump 8 via the belt 22, and reference numeral 23 is a holder for rotating the holder 1. Motor, code 24A and 24B
Is a holder position detection switch for detecting whether the holder 1 is in the closed position (position close to the suction shaft 5) or in the open position (position separated from the suction shaft 5).

Further, a separator 25 is provided in the vicinity of the rotary cylinder 3, and the separator 25 is supported by a shaft 26 so as to be horizontally rotatable and is biased by a spring 27 in the counterclockwise direction in FIG. The batch solenoid 28 is operated so that it can be rotated clockwise in FIG. And
As will be described later, the separator 25 has a function of being inserted between a bill that has already been flipped and a bill that has not been flipped when a bill of a different denomination is detected, and separating the two.

Next, a stamping mechanism for stamping a confirmation stamp on a banded bundle of banknotes will be described with reference to FIG.

The reference numeral 30 in FIG. 1 denotes a seal stamp holding member provided in the holder 1, and the seal stamp holding member 30 supports the seal stamp 31 so as to be movable in the arrow (a)-(b) directions. Further, it is movably supported so as to approach and separate from the banknote S. Further, a dial 32 is provided at the base end of the holder 1, and by rotating the dial 32, the seal 31 is indicated by an arrow (a)-.
By moving in the (b) direction, the stamped portion 31a of the stamp 31 is aligned with the band B.

Further, on the base that supports the holder 1, a striking arm 34 that rotates about a shaft 33 in a horizontal plane, and a striking arm 34.
A solenoid 35 for rotating the striking arm 34 is provided. By rotating the striking arm 34 by the operation of the solenoid 35, the tip end portion of the striking arm 34 is moved to the rear end portion 31b of the seal.
Is pressed from the rear side to bring the imprinting portion 31a of the stamp 31 close to the band seal, whereby the imprint is performed on the band seal.

Next, a double feed detection mechanism for bills that are picked up by the suction shaft 5 will be described with reference to FIG.

Reference numerals 37 and 38 in FIG. 1 denote a double feed detection lamp and a light receiving element (the double feed detection sensor is configured by these elements), and a reference numeral 39 denotes a light receiving element. Is a condenser lens for condensing

The double feed detecting lamp 37 and the light receiving element 38 are both provided toward the rotary cylinder 3 side, and the light beam emitted from the double feed detecting lamp 37 is a flipped banknote Sa. Is irradiated from the direction intersecting with and the bill
It is designed to irradiate the center of the Sa turning part.

Then, in the banknote Sa irradiated with light in this manner, the amount of light transmitted through the banknote Sa, that is, the amount of transmitted light, is the light receiving element 38.
The double feed is determined based on the amount of transmitted light detected by the light receiving element 38. That is, if the amount of transmitted light is equal to or larger than a predetermined value, it is determined as normal feeding (single sheet feeding), and if the amount of transmitted light is equal to or less than the predetermined value, double feeding is determined.

Next, a discriminating mechanism for discriminating the denomination of bills and the front and back thereof will be described with reference to FIGS. 1 and 2.

In the figure, reference numeral 40 indicates a light projector that irradiates the accumulated frontmost banknote Sb with light, and reference numeral 41 indicates a light receiver that receives the reflected light of the light emitted from the light projector 40 onto the banknote Sb. The light beam emitted from the light projector 40, which is a (detection element), is applied to the area including the area E indicated by the chain double-dashed line on the banknote Sb.

The light receiver 41 is composed of an area sensor 42 that generates an electric signal according to the pattern on the surface of the bill and a condenser lens 43 that condenses the reflected light of the bill Sb on the area sensor 42. The area sensor 42 is a two-dimensional sensor in which a large number of linear image sensors are arranged in a direction orthogonal to the line, and a discrimination control circuit 46 to be described later.
The area E is scanned by a trigger signal emitted from the area E, the amount of reflected light at a specific position (line or coordinate) of the area E is converted into an electric signal, and a signal having a waveform corresponding to the pattern on the bill surface is generated. Is output. That is, the area sensor 42
The horizontal direction corresponds to the X coordinate of the area E, and the vertical direction corresponds to the Y coordinate of the area E. By the correspondence between the vertical and horizontal coordinates of the area sensor and the XY coordinate of the area E, , The surface pattern (line data) in the area E can be read by designating a line such as Y = 1, Y = 3 (reference position data), and further, the read area data is read by the ROM 64 (described later). ), The banknote Sb is compared with the reference data (reference line data) stored in
It is possible to perform denomination discrimination and front / back discrimination (details will be described later).

Next, referring to FIG. 4, a counting control circuit 45 and a discrimination control circuit 46 for operating the counting mechanism and the discrimination mechanism, respectively.
Will be explained.

That is, the counting control circuit 45 is a ROM 47 that stores a counting control program (see FIGS. 5 and 6) described later.
And a RAM 48 for writing and reading various data according to a program stored in the ROM 47, and a CPU 49 for controlling these. Further, the CPU 49, via the input side I / O port 50 and the receiver 51, a start switch 52 for instructing the start of counting operation, a denomination and a detection mode switch 53 for determining double feed, and front / back discrimination. Front and back mode switch 54 for connecting, and holder position detection sensors 24A and 24B that detect whether holder 1 is in the closed position or the open position, rotary cylinder position sensor 18, pressure sensor 11, clear switch, etc. The other operation switches 55 are respectively connected.

Although the start switch 52 is composed of a push button 60 (see FIG. 1) provided on the holder 1 in this embodiment, for example, a sensor (for detecting that the banknote S is loaded in the holder 1 ( (Not shown) may be used as the start switch 52.

Further, in the CPU 49, a lamp including a solenoid (marking solenoid) 35, a double feed detection lamp 37 or a projector 40, a holder motor 23, a counting motor 19 via an output side I / O port 61 and a driver 62. , Pump motor 2
1, a solenoid valve 16, a batch solenoid 28, and an operation panel (not shown) of a bill counting machine, etc., which are connected to a display unit 63 for displaying the number of bills, presence / absence of abnormality, and the like.

On the other hand, the discrimination control circuit 46 stores the discrimination control program (see FIGS. 7 and 8) and the like in the ROM 64 and the R 64.
It is composed of a RAM 65 that writes and reads various data according to a program stored in the OM 64, and a CPU 66 that controls these. Further, the CPU66,
The area sensor 42 is connected via the output I / O port 70 and the drive circuit 71, and the output of the area sensor 42 is output to the amplifier 7
2, A / D converter 73, input side I / O port 74
It is designed to be input to PU66.

The drive signal supplied from the drive circuit 71 to the area sensor 42 is composed of an X-axis drive signal and a Y-axis drive signal, and the output of the X-axis drive signal and the Y-axis drive signal outputs the bill. The surface pattern (area data) at a specific position in the area E is read out. When extracting the surface pattern data in the area E, first, a Y-axis driving signal is output to determine the Y coordinate of the area E (see FIG. 2), and then the X-axis driving signal is output. A signal may be output to determine the X coordinate of area E. For example, Y is set to 1 to read the data in the area E as line data (X, 1), and Y is set to 3 to read the data in the area E as line data (X, 3). ROM64 for a plurality of output line data (X, 1), (X, 3), etc.
It should be compared with the reference data stored in (the X-axis and the Y-axis of the drive signal correspond to the X-axis and the Y-axis of the area E shown in FIG. 2, respectively).

On the other hand, similar to the area sensor 42, the double feed detection sensors 37 and 38 are connected to the A / D converter 73 via an amplifier 78. Between the amplifiers 72/78 and the A / D converter 73, analog switches 79/80 which operate by a switching signal from the output side I / O port 70 are respectively provided. Depending on 80, area sensor 42 or double feed detection sensor 37/38
One of the output signals is sent to the A / D converter 73.

Further, the CPU 49 of the counting control circuit 45 and the C of the discrimination control circuit 46
The PU 66 is connected to each other via the data transfer I / O ports 81 and 82, and is configured so that data can be mutually converted and interlocked operation can be performed.

Hereinafter, according to FIGS. 5 and 9, the counting control circuit 45 will be described.
The contents of the program stored in the ROM 47 will be described together with the operation of the bill counting machine.

Note that SN in FIG. 5 indicates step N in the following description, and Tn in FIG. 9 indicates timing Tn in the following description.

(A) ◇ Counting control operation 1 (see FIGS. 5 and 9) <Step 1> Power on <Step 2> Whether the holder 1 is in the open position according to the output signals of the holder position detection sensors 24A and 24B. If NO, drive the holder motor 23 to set the holder 1 to the open position (step 3), and if YES, proceed to the next step 4.

<Step 4> Depending on whether or not there is an output from the rotary cylinder position sensor 18, the suction shaft 5
Is in the standby position (that is, the position where the suction shaft 5 faces the bill), and if NO, the counting motor
19 is driven at a low speed to set the suction shaft 5 to the standby position (step 5), and if YES, the process proceeds to the next step 6.

<Step 6> Judge whether the mode setting operation has been performed, and YES
In the case of, the marking mode is stored by various mode setting operations, for example, the marking mode operation setting (step 50),
If NO, go to the next step 7.

<Step 7> It is determined whether or not the start signal (ST) is output from the start switch 52. If NO, the process returns to step 6; if YES, the process proceeds to the next step 8 (timing T ₁ ).

<Step 8> It is determined whether or not the detection mode switch 53 is ON, and if YES, the double feed detection lamp 37 and the projector 4
If 0 is turned on (step 9), and if NO, the counting operation proceeds to the next step 10 is started.

<Step 10> The holder 1 is detected by the outputs of the holder position sensors 24A and 24B.
Is in the closed position, and if NO, the holder motor drive signal (HMD) is output to drive the holder motor 23 to set the holder 1 in the closed position (step
11) If YES, go to the next step 12 (timing T ₂ ).

<Step 12> The pump drive signal (PMP) is output and the pump motor 21
Drive solenoid valve drive signal (SV)
Is output to switch the solenoid valve 16 to the exhaust nozzle 14 side.

<Step 13> It is determined whether or not the suction shaft 5 is at the start position, and if NO, the count motor drive signal (CMD) is output and the count motor 19 is driven at a low speed in the reverse direction to suck. The axis 5 is set to the start position (step 14), and if YES, the process proceeds to the next step (timing T ₃ ).

<Step 15> It is determined whether or not the pressure determination signal (VSW) is output, that is, it is determined whether or not the vacuum pressure in the suction pipeline 7 has risen to a predetermined value. Then, it is determined whether or not a predetermined time (time required to increase the vacuum pressure) has passed from the timing T ₃ (step 16), and if this step 16 is NO, the process returns to step 15, and the step 16 is YES
In this case, the process proceeds to the suction failure processing rule (shown by the chain line A in FIG. 5) described later.

On the other hand, if this step 15 is YES, the next step 17
Proceed to (timing T ₄ ).

<Step 17> When the pressure discrimination signal (VSW) is output (Step 1
A counting motor drive signal (CMD) is output to 5) to start rotation of the rotary cylinder 3 and the suction shaft 5.

<Step 18> The suction shaft 5 performs counting while flipping the banknotes one by one, and each time the rotary cylinder position sensor 18 generates a signal (SNS), a trigger signal (TRG) for extracting the detection data of the area sensor 42. ) Is output. At this time, a counting signal (CNT) is output to count (or discriminate) banknotes.
(Timing T _{6 to} T _m ).

<Step 19> It is determined whether or not the pressure determination signal (VSW) is output, that is, whether or not there is no bill to be flipped and the vacuum pressure in the suction pipe line 7 cannot be increased (OFF). Then, if it is turned off (timing T _{m + 1} ), the process proceeds to the next step 20.

<Step 20> The counting motor 19 and the pump motor 21 are stopped.

<Step 21> In Step 20, in parallel with the stopping operation of the rotary cylinder 3, it is determined whether or not the open signal of the holder is output.
If YES, return to step 2 (timing T _n ), NO
If this is the case, this step 21 is awaited. Then, when returning to step 2 (timing T _n ), it is determined whether or not the holder 1 is opened, and the holder motor drive signal (HMD) is output until the holder 1 is opened.

Then, when the holder is opened (step 4; timing T _{n + 1} ), the motor drive signal (HMD) is turned off, and at the same time, the count motor drive signal (CMD) is output and the count motor 19
To drive. When the suction shaft 5 is moved to the standby position by driving the counting motor 19, the output of the rotary cylinder position sensor 18 is turned on, and at the same time, the counting motor 19 is turned on.
Are stopped (timing T _{n + 2} ).

When the suction shaft 5 is stopped at the standby position in this way, the next start signal (step 7) allows the counting to be started immediately, and the next preparation is completed.

Next, the suction / defective processing route A will be described.

That is, when the rotary cylinder 3 cannot be stopped at a predetermined position due to a malfunction of the brake of the counting motor 19 or the like, the inside of the suction pipe line 7 is not sealed from the outside, so that a certain period of time or more elapses. The vacuum pressure does not rise and therefore the pressure determination signal cannot be turned on (step 16).

In such a case, the counting motor 19 is reversely rotated at a constant speed to adjust the position of the rotary cylinder 3 (step 30), and steps 13 to 15 are repeated. If the vacuum pressure does not increase even after repeating this operation N times (step 31), the pump motor 21 is stopped (step 32), an alarm signal is output (step 33), and then the machine is stopped. (Step 34).

Next, the counting process flow in the CPU 49 will be described with reference to FIG. 6, and the determination process flow in the CPU 66 will be described with reference to FIGS. 7 and 8.

◇ Counting control operation 2 (see FIG. 6) <Step 100> Start <Step 101> It is determined whether or not the detection mode switch 53 is ON, that is, it is necessary to read the pattern on the bill surface. , YES, the discrimination ON signal and the front / back mode signal (however, the same applies only when the front / back mode switch 54 is ON) are output (step 102), and the bill discrimination is turned ON.
The signal and the front / back mode signal are supplied to the discrimination routine shown in FIG. 7 (indicated by an arrow).

If the detection mode switch 53 is OFF, it is determined that only counting is performed, and the process proceeds to the next step 103.

<Step 103> When the rising of the rotary cylinder position sensor output signal (SNS) is detected and YES is determined, the process proceeds to the next step 104.

<Step 104> Trigger signal (T
This trigger signal (TR
The output of G) is supplied to the discrimination routine shown in FIG. 7 (indicated by an arrow).

<Step 105> The ON-OFF state of the rotary cylinder position sensor output signal (SNS) is detected, and if ON (YES), it is determined whether or not the pressure determination signal (VSW) is ON (step 106), if this step 106 is NO, a discrimination OFF signal is output (step
150), and driving of the counting motor 19, the pump motor 21, the double feed detection lamp 37, and the lighting of the projector 40 are stopped (step 151). If the pressure determination signal (VSW) is output in step 106 (YES), the process proceeds to step 107.

<Step 107> It is determined whether or not the detection mode switch 53 is ON. If YES, the process proceeds to step 108, and if NO, the process proceeds to step 109.

<Step 108> When different denominations are detected, when the front and back discrepancies are detected in the front and back discriminating mode, when it is judged that the discriminating abnormality does not match all the reference patterns, or double suction is detected. In this case, it is determined whether or not an error signal (indicated by an arrow) output from the determination processing flow is input. If YES, the batch solenoid 28 is operated to stop counting, and if NO, To go to step 109.

<Step 109> It is determined whether or not the batch mode is ON. If NO, the procedure returns to Step 105, and if YES, Step 110.
Proceed to.

<Step 110> When the number of bills is determined and it is determined that the count value of bills is less than the predetermined number (NO), the process returns to step 105, and it is determined that the count value of bills matches the predetermined number. If it is determined (YES), the batch solenoid 28 is turned on to separate the counted banknotes from the uncounted banknotes (step 11
For 1), output the discrimination OFF signal (step 112) (this discrimination OFF signal is supplied to the discrimination processing flow as shown by the arrow) for driving the counting motor 19 and the pump motor 21 and for detecting the double feed. The lighting of the lamp 37 and the projector 40 is stopped (step 113). Then, the process proceeds to next step 114.

<Step 114> It is determined whether or not a clear operation for canceling the operation of the separator 25 that was operated during the batch processing or the error detection is performed, and if YES, the process proceeds to step 115.

<Step 115> An open signal (see step 21) is output to the holder 1, and this flow ends.

Next, step 120 to step 121 will be described.

<Step 120> In step 105, the ON-OFF state of the rotary cylinder position sensor output signal (SNS) is detected, and if it is ON, the routine of step 105 to step 109 (or step 110) is continued. , When the state becomes OFF, the process proceeds to step 120. Then, similarly to step 106, it is determined whether or not the pressure determination signal (VSW) is ON. If the determination is NO, the process proceeds to the next step 150 as in step 106, and the determination is made. The OFF signal is output (step 150), and at the same time, the driving of the counting motor 19, the pump motor 21, the double feed detection lamp 37, and the lighting of the projector 40 are stopped (step 151). If the output of the pressure determination signal (VSW) is YES, the process proceeds to step 121.

<Step 121> It is determined again whether the rotary cylinder position sensor output signal (SNS) is ON or not. If NO, the process returns to Step 120 and Y
In the case of ES, a trigger signal (TRG) is output (step 122) (this TRG is supplied to the discrimination processing flow as indicated by the arrow), and after counting the counter by 1 (step
123) Return to step 105.

Next, step 150 to step 165 will be described.

<Step 150> As described above, when the output of the pressure determination signal (VSW) is not detected in steps 106 and 120, for example, when the bills at the standby position are not adsorbed, or there is no bill to be counted, Judgment OFF signal is output, and
After stopping the lighting of the counting motor 19, the pump motor 21, the double feed detection lamp 37, and the projector 40 (step
151), and proceed to step 152.

<Step 152> It is determined whether or not the detection mode switch 53 is ON. If NO, the process proceeds to step 160, and if YES, the process proceeds to step 153.

<Step 153> When the end signal is not output from the determination routine (indicated by an arrow) for a certain period of time (step 154), for example, although the banknotes to be counted are set, When the bill is not sucked, a flag indicating a residual error is set in a predetermined area of the storage unit (RAM 48 or CPU 49) (step 155), and then the process proceeds to the next step 114.

When the end signal is output from the determination processing flow of FIG. 7, the process proceeds to the next step 160.

<Step 160> It is determined whether or not the mode setting is the number-of-sheets check mode. If NO, the process proceeds to step 164, and if YES, the process proceeds to step 161.

<Step 161> It is determined whether or not the count value of the counted bills matches the number set in the number check mode. If NO, a flag indicating a mismatch error is displayed in a predetermined area of the storage unit. Stand (step 166) and proceed to step 114. When the set number of sheets and the count value match (YES)
To the next step 162.

<Step 162> It is judged whether or not the mode setting is set to the marking mode, and if YES, the marking solenoid 35 is operated,
The band is marked (step 163), and if NO, the process proceeds to the next step 164.

<Step 164> It is determined whether or not the addition mode is set, and if YES, the counting result of the previously counted banknotes is added, the addition result is stored in the storage unit, and NO in case of,
The process proceeds to step 115, and the counting process ends.

Next, FIG. 7 shows the discrimination processing flow in the CPU 66.
Description will be made with reference to the time charts of FIGS. 8 and 10.

<Step 200> Start <Step 201> It is determined whether or not a trigger signal (TRG) (indicated by an arrow) is output from the counting routine, and if YES, the process proceeds to the next step 202.

<Step 202> It is determined whether or not a discrimination ON signal (indicated by an arrow) is output from the counting routine. If NO, the process returns to step 201, and if YES, the analog switch 80 shown in FIG.
To select the output of the double feed detection sensors 37 and 38 as an amplifier.
78, after being fetched through the A / D converter 73 and stored in the RAM 65 (step 203), the process proceeds to step 204.

<Step 204> Based on the error codes set in Steps 214, 222, and 232, it is determined whether or not different denominations are mixed, front and back do not match, and discrimination is abnormal (abnormal banknotes are mixed). Detecting mixed denominations, inconsistency between front and back, and abnormal discrimination will be described in steps 213, 221, and 231), Y
In case of ES, an error signal and an error code are output, and the error content is displayed on the display unit 63 (step
205), and returns to step 201. The error signal output at step 205 is supplied to step 108 of the counting routine of FIG. 6 as indicated by the arrow.

Further, when there is no mixing of different denominations, inconsistency between front and back, and discrimination abnormality (NO), the process proceeds to the next step 206.

It should be noted that when the first trigger signal (TRG) is output, it has not passed through steps 214, 222, and 232, and no determination has been made, so the first step 204 is always NO and proceeds to step 206.

<Step 206> Based on the detection data fetched from the double feed detection sensors 37 and 38 in Step 203 and the double comparison level which is the determination reference set in Step 214 (described later), the double suction of the bill is determined. If YES, an error signal and an error code are output, the content of the error is displayed on the display unit 63 (step 207), and the process returns to step 201.

The error signal output at step 207 is supplied to step 108 of the counting routine of FIG. 6 as indicated by the arrow.

Further, in the case of NO, that is, when it is determined that the double adsorption is not present, the process proceeds to the next step 208.

As with step 204, the first trigger signal (TRG)
At the time of output, the banknote Sa for which double suction is to be discriminated does not exist in the position shown in FIG. 1, and since the reference double comparison level is not set, this step 206 is always NO and proceeds to step 208. .

<Step 208> The analog switch 79 shown in FIG. 4 is selected and the output of the area sensor 42 is transferred to the RAM 65 via the amplifier 72 and the A / D converter 73.
Area data (data on the N line) in the area E is fetched by storing in the area.
The area data is taken in based on the flow shown in FIG.

That is, when a capture signal is output (step 30
After setting Y to 0 and X to 0 in (0) (step 301),
Proceed to next step 302. Then, in this step 302, it is judged whether or not the output of the necessary N lines of data (line data) is completed, and if YES, a discrimination start signal is output (step 303), and FIG. Return to the main routine of. If NO in step 302, the loop of steps 304 to 311 is performed until the data of the designated N line (the designation of this line is based on the position data) is output in step 312, and the output of the data is performed. Is performed, the process proceeds to step 303 as described above.

Then, when the line-by-line acquisition of the area data is completed in this way, the process proceeds to the next step 209 shown in FIG.

<Step 209> It is determined whether or not the data captured in step 208 is of a level having no pattern (that is, whether or not it is a black pattern on the front surface 1b of the holder 1 in the previous period) and YES (no data) After outputting the end signal (step 210), the process returns to step 201. Note that the above step 210
The end signal output at is supplied to step 153 of the counting routine of FIG. 6 as indicated by the arrow.

Further, when the taken-in area data is of a level having a pattern (NO), the process proceeds to the next step 211.

<Step 211> It is determined whether or not the bill sucked by the suction shaft 5 is the first bill, and if YES, the process proceeds to step 212 and NO.
If yes, then go to step 230.

<Step 212> For the area data of the first bill taken in step 208, a total of 12 patterns (4 × L patterns) of the current three denominations (L denominations) stored in the ROM 64 are used as a reference. Data (for one denomination, there are 4 patterns of front and back)
And are compared, and the process proceeds to the next step 213. These 1
The two patterns of reference data correspond to the line data extracted and specified in step 208.

<Step 213> As a result of comparing the area data of the first bill and the reference data of 12 patterns, it is determined whether or not there is a matched pattern. If NO, it is impossible to discriminate the abnormal bill. Then, a flag indicating a discrimination abnormality is set in a predetermined area of the storage unit (RAM65) (step 214), and the step 201
Return to.

If there is a matching pattern (YES), a flag indicating that the banknote identified in the predetermined area of the storage unit (RAM65) is one of the three denominations is set (step 215). ), After setting a flag indicating the front and back of the bill (step 216), the double comparison level, which is the determination criterion for double suction stored in the ROM 64 based on the determined denomination and front and back information, is set. After setting in the storage unit (RAM65) (step 217), the process proceeds to step 218.

<Step 230> On the other hand, if it is determined in step 211 that the bill sucked by the suction shaft 5 is not the first bill, the area data of the bill taken in step 208 and the ROM 64 are stored. Only the reference data of the front and back four normal and reverse patterns for the specified denomination (the denomination set in step 215) are compared and the process proceeds to the next step 231. In addition,
These four patterns of reference data correspond to the line data specified in step 208 and taken out.

<Step 231> As a result of comparing the area data of the banknote with the reference data of four patterns, it is determined whether or not there is a matching pattern. If NO, this banknote is a different denomination banknote (strictly speaking, It is also possible that there is a discriminated banknote, and a flag indicating a different denomination is set in a predetermined area of the storage unit (step 23
2) Return to step 201.

If there is a matching pattern (YES), as described above, a flag indicating the front and back of the banknote is set in a predetermined area of the storage unit (step 216), and further, in step 217, a predetermined area of the storage unit is set. The amount of transmitted light of the bill is set in the area, and the process proceeds to the next step 218.

<Step 218> It is determined whether the front / back mode switch 54 is ON. If NO, the process proceeds to step 201, and if YES, the process proceeds to the next step 219.

<Step 219> It is determined whether or not this bill is the first bill, and if NO, the process proceeds to step 221, and if YES, the process proceeds to next step 220.

<Step 220> The front and back codes of the first banknote set in step 216 are set in the storage unit RAM65 as front and back reference data, and bill front and back determination is performed based on the front and back reference data (step 221).

<Step 221> The front and back codes set in step 216 are compared with the front and back reference data set in step 220 to determine whether the second and subsequent banknotes match the front and back of the first banknote. Judge, and if they match (YES), return to step 201,
If they do not match (NO), the process proceeds to the next step 222, and in this step 222, a flag indicating that the two sides do not match is set in a predetermined area of the storage unit (step 22).
2), return to step 201 and repeat step 20 above.
Repeat steps 1 to 232.

The timing for fetching the above-mentioned trigger signal (TRG), dual data, etc. is described in the timing chart of FIG. These trigger signals (TRG),
Corresponding to the timing of fetching double data and the step number of FIG. 7, the discrimination trigger signal is step 20.
Corresponding to 1, the dual data acquisition timing is step 2
Corresponding to 03, the error check timing corresponds to step 204, the double check timing corresponds to step 206, the area data acquisition timing corresponds to step 208, the end check timing corresponds to step 209, and the discrimination processing timing corresponds to Corresponding to Steps 211 to 213 and Steps 230 and 231. Furthermore, the denomination, front and back, double comparison level, and error set timing are Steps 215 to 2
17, corresponding to steps 214, 222, and 232, respectively.

As described in detail above, in the banknote counter configured as described above, as shown in the time chart of FIG. 9, the rotary cylinder is activated and the rotary cylinder 3 is activated to enter the constant speed state. It takes time (T _{5 to} T ₆ ), and using this long rise time, the steps of the discrimination processing flow in FIG. 7
It is possible to compare and determine the banknotes as indicated by 211 to 213.

That is, as shown in FIG. 9, at the rise of the rotating cylinder 3 a (T ₅ ~T _6), when compared with the constant-speed state _{(T 6 ~T m + 2)} , 1 banknotes counting 1 time required to do
Since the second and subsequent sheets are the second and subsequent sheets, in the constant speed state (T ₆
At ~ T _{m + 2} ), the line data of the banknote can only be compared with the standard data of the front and back four patterns, while 1 at the rising of the rotary cylinder 3 (T _{5 to} T ₆ ).
It is possible to compare the area data of the first banknote with the reference data of four patterns of front and back for one denomination and a total of 12 patterns of three denominations.

As a result, as shown in the discrimination processing flow of FIG.
After the denomination is first determined by the first bill (step 215), the second and subsequent bills are compared with the four patterns of forward and reverse sides of the denomination determined by the first bill (step 230). ), It is possible to improve the efficiency of the bill discriminating work by determining the ones deviating from these four patterns as different denominations (steps 231, 232).

Further, as described in step 208, the area data in the area E of the banknote is taken out as line data along the X axis, and the line data is set to the Y value arbitrarily within the area E. Therefore, it is possible to make a highly accurate discrimination by reading out a plurality of these line data and comparing these line data with reference data stored in advance in the ROM 64, that is, bill discrimination. Since the line data required for performing the above can be read arbitrarily and for example by setting the number Y, the denomination and front and back sides of this device can be applied to not only Japanese banknotes but also US dollar banknotes of different forms. This has an effect that the discrimination function can be adapted.

When the program for discriminating Japanese currency bills is changed to a program for discriminating US dollar bills, the ROM 64 or the like is replaced.

In addition, in the flowchart of FIG. 8 described above, SP304
P305 …… S data of the line specified in SP310
It is designed to output at P312. Therefore, replace ROM64 where this flowchart is stored, and use SP304 / SP
305 …… By changing the processing contents of SP310, these
It is also possible to change the line specified by SP.

Further, although the discrimination control circuit 46 fetches the line data along the X axis, it is not limited to this and may be fetched along the Y axis.

Further, as a sensor for reading the surface pattern in the area E, instead of the area sensor 42, a one-dimensional image sensor is arranged in a plurality of rows at intervals with respect to the Y-axis or the X-axis shown in FIG. The detection data may be read out by designating a column.

Further, in this bill counting machine, the arrangement of the stamping mechanism for stamping the band seal and the double feed detecting mechanism for detecting the double feed is arbitrary.

"Effects of the Invention" As described in detail above, in the discriminating apparatus of the present invention, a plurality of different lines are designated from the data indicating the bill surface detected by the area sensor, and this is selectively taken out as line data. Therefore, even if the form of the bill is different (US bill, Japanese bill, etc.), by replacing the reference data storage means (ROM64 of the embodiment),
In particular, the detection area can be appropriately set according to the mode of the banknote (US banknote, Japanese banknote, etc.) without changing the position of the sensor for detecting the surface of the banknote.

Further, in the discrimination device of the present invention, instead of comparing and discriminating all of the data detected by the area sensor with the corresponding reference data, a plurality of different lines are selected from the data indicating the bill surface detected by the area sensor. Since it is specified and selectively extracted as line data and compared with the corresponding reference line data, as a result, the time required for comparing and determining the data can be shortened, and the speed of the comparison and determination process can be increased. It is also possible to plan.

[Brief description of drawings]

1 to 10 show an embodiment of the present invention.
FIG. 2 is a plan view, FIG. 2 is a view taken along the line II-II in FIG.
FIG. 3 is a sectional view of the suction shaft and the suction pipe system, FIG. 4 is a block diagram of a counting control circuit and a discrimination control circuit, FIG. 5 is a flow chart of counting control operation, and FIG. 6 is a CPU operation of the counting control circuit. FIG. 7, FIG. 7 and FIG. 8 are diagrams showing the CPU operation of the discrimination control circuit, and FIGS. 9 and 10 are flow charts of the counting control operation and the discrimination control operation. 1 ... Holder 5 ... Suction shaft 40 ... Emitter (lamp) 42 ... Area sensor 64 ... ROM (reference data storage means) 65 ... RAM (line data storage means) 66 ... CPU (comparison / discrimination means) 71 …… Drive circuit (line data output means).

Claims (1)

[Claims] 1. A bill counting machine that counts bills loaded in a holder by sucking them onto a suction shaft and flipping them one by one, and irradiates a light beam onto the surface of the bill just before sucking by the suction shaft. And a two-dimensional area sensor in which a large number of line-shaped image sensors are arranged in a direction orthogonal to the line and which planarly detects the light rays reflected on the surface of the bill and outputs data indicating the bill surface. , Storing the positions of a plurality of different lines to be selected and designated from the data indicating the surface of the bill detected by the area sensor as reference position data, and comparing with the line data of the line selected and designated by the reference position data Based on the reference position data stored in the reference data storage means and the reference position data stored in the reference data storage means. Line data output means for designating a plurality of different lines from the data indicating the bill surface detected by the sensor and outputting data indicating the bill surface along the designated lines as line data, and output from the line data output means The line data storage means for temporarily storing the generated line data, and the line data temporarily stored in the line data storage means by the reference line data stored in the reference data storage means and the reference position data. A discriminating device in a bill counting machine, comprising: a comparing and discriminating means for discriminating a bill based on a result of the comparison according to the position of a line to be formed.