JPH0214757B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to banknote counting machines, and in particular, counts while reading the optical pattern on the surface of banknotes and detecting the presence or absence of mixture of different types of banknotes, double feeding, etc. The present invention relates to a banknote counting machine having the above-mentioned structure.

``Prior Art'' In general, bill counting machines use vacuum pressure in a suction shaft that rotates on its own axis to attract bills one by one and count the bills while flipping them over. It has a function to check whether or not it is contaminated.

Conventionally, as a banknote counting machine having such a function, the present applicant has already provided a "discrimination device for a banknote counting machine" as shown in Japanese Utility Model Application Publication No. 60-104979. As a general paper sheet discriminating device, a "paper sheet discriminating device" as disclosed in Japanese Patent Laid-Open No. 60-61882 is known.

The discrimination device in the banknote counting machine shown in the former type is configured to read the pattern on the banknote surface in a line shape near the part that is attracted to the suction shaft.
By comparing the read data with reference data stored in advance, the denomination and the front and back sides are determined.

The paper sheet discriminating device shown in the latter type is equipped with a magnetic head and a photo sensor that detects the surface pattern of the banknotes in a line shape in the middle of a pair of belts that transport the banknotes one by one with the banknotes sandwiched between them. Similarly to the discrimination device in the banknote counting machine, the detection data of the magnetic head and photo sensor is stored in advance and compared with reference data to discriminate the denomination and the front and back sides.

``Problems to be Solved by the Invention'' By the way, in such a discriminating device, the pattern on the surface of the banknote is read by a single fixed line, and the position of this line is Since the settings are fixed according to the type and aspect of the banknote to be discriminated, for example, when the banknote to be discriminated is changed from a Japanese yen banknote to a US dollar banknote, the sensor for obtaining the line is used. This sometimes required changes in the design of the equipment.

The present invention has been made in view of the above circumstances, and by selecting and extracting a plurality of line data, it is possible to easily identify banknotes having various aspects (for example, banknotes of one's own country or other countries) with high accuracy. To obtain a discriminating device for different types of bills in a bill counting machine, which can effectively utilize the time-consuming suction shaft activation time and shorten the time required for bill discrimination as a whole. With the goal.

"Means for Solving the Problem" In order to achieve such an objective, the present invention has the following features:
In a dissimilar bill discriminating device in a bill counting machine that counts bills loaded in a holder by attracting them to a suction shaft and flipping them one by one, a light beam is irradiated onto the surface of the bills loaded in the holder and just before being sucked by the suction shaft. A lamp that detects the banknote, an area sensor that detects light rays reflected on the surface of the banknote in a two-dimensional manner, and a plurality of different lines from among the data indicating the banknote surface detected by the area sensor, and these are extracted as line data. A drive circuit, a ROM in which a plurality of banknote reference data serving as a reference to be compared with the line data are stored, and line data selectively extracted by the drive circuit are taken in via an A/D converter. , and a CPU that discriminates banknotes by comparing the line data with the reference data of the corresponding ROM, and this CPU,
Regarding the first bill that the suction shaft attracted, L
An all-pattern discrimination function that selects the standard data of four patterns of front and back, front and reverse, and compares it with the line data, and a gold-denominated banknote that stores the denomination of the first bill determined by this all-pattern discrimination function. For the second and subsequent banknotes that are attracted by the suction shaft, the type memory function selects standard data of four patterns of forward and reverse sides corresponding to the denomination of the first banknote stored by the denomination storage means. A specific pattern discrimination function is provided for comparing the line data with the line data.

"Operation" According to the present invention, by specifying a plurality of different lines from among the data indicating the banknote surface detected by the area sensor and selectively extracting them as line data, when the aspect of the banknote differs ( Even when detecting banknotes (US banknotes, Japanese banknotes, etc.), the detection area can be adjusted without changing the position of the sensor for detecting the surface of the banknote (US banknotes, Japanese banknotes, etc.).
(Japanese banknotes, etc.) can be set as appropriate.

In addition, since the standard data of the L denomination and 4 patterns of forward and reverse sides were selected for the first banknote and compared with the line data, it took a lot of time to start the suction shaft, resulting in As a result, it is possible to effectively utilize the time when processing the first banknote, which takes time to count.

In addition, for the second and subsequent banknotes, standard data for four patterns of forward and reverse front and back sides corresponding to the denomination of the first banknote were selected and compared with the line data, so that The second and subsequent banknotes whose denominations have been determined can be discriminated at high speed.

"Example" The present invention will be described below based on an example shown in FIGS. 1 to 10.

First, the structure of the banknote counting mechanism will be explained according to FIGS. 1 to 3.
By placing banknotes S on the holder 1 and horizontally rotating the holder 1 around the shaft 2, the banknotes S are moved to the counting position shown by the solid line in FIG. 1 or the standby position shown by the chain line in FIG. While rotating the rotary cylinder 3 in the counterclockwise direction in FIG. The banknotes S on the holder 1 are counted while being turned over one by one by applying vacuum pressure to the banknotes, and the banknotes are identified by reading the reflected light of the light rays irradiated onto the surface of the banknotes S from a projector, which will be described later, with a light receiver. The basic configuration is as follows.

The holder 1 has a banknote S on the back side (suction shaft 5
A base plate 1a is provided to support the base plate 1a from the opposite side), and the surface 1b of this base plate 1a is formed in a blackish color so as to reduce the level of reflected light.

The shafts 4 and 6 of the rotary cylinder 3 and the suction shaft 5 are formed in a hollow shape as shown in FIG.
Suction port 9 of vacuum pump 8 via suction line 7
The vacuum pressure of this vacuum pump 8 is connected to the opening 1 provided in a part of the outer periphery of the suction shaft 5.
By acting on the banknotes S through the suction shaft 5, the banknotes S are attracted to the suction shaft 5. Further, a pressure sensor 11 is provided in the middle of the suction pipe line 7, and this pressure sensor 11 allows
It is detected whether the vacuum pressure within the suction pipe line 7 has risen to a level that can attract banknotes.

On the other hand, an exhaust pipe line 13 is connected to the exhaust port 12 of the vacuum pump 8, and the tip of this exhaust pipe line 13 sprays exhaust gas onto the sides of the banknotes S to separate the banknotes S from each other. On the other hand, an exhaust nozzle 14 is provided in the middle of the exhaust pipe line 13 to switch the exhaust to a discharge port 15 to prevent noise from the exhaust nozzle 14 when banknotes are not being counted. A solenoid valve 16 is provided to prevent this.

In addition, each of the suction shafts 5 has a structure shown in FIGS.
As shown in FIG. 3, a pair of position regulating pieces 5a are fixed. This position regulating piece 5a is connected to the suction shaft 5
The opening 10 of the suction shaft 5 protrudes from the side surface of the suction shaft 5.
When the outside air is sucked through the opening 10 and the bill is attracted to the suction shaft 5, it supports the bill from the side and prevents the bill from falling or folding. It is now possible to prevent In this way, the position regulating piece 5a
, the suction shaft 5 maintains the suction-separated banknote in an upright state, and the banknote is placed in the position where it is detected whether or not double feeding is being carried out (the position Sa where the banknote is suction-separated in FIG. 1). positioning is now performed.

Further, a plurality of actuation pieces 17 made of magnetic material are attached to the outer circumference of the rotary cylinder 3, and each suction shaft 5 is moved to a standby position (opening) depending on whether or not these actuation pieces 17 actuate the magnetic sensor 18. 10 is in the starting position (opening 1
0 is in the position just before directly facing the bill, and the inside of the suction shaft 5 is in a position where it is cut off from the vacuum pump 8.

In addition, in FIG. 3, reference numeral 1 is a counting motor that drives the rotary cylinder 3 via a belt 20, and reference numeral 21 is
23 is a holder motor that rotates the holder 1; 24A and 24B indicate whether the holder 1 is in the closed position (close to the suction shaft 5) or in the open position; This is a holder position detection switch that detects whether the holder is in the position (a position away from the suction shaft 5).

Further, a separator 25 is provided near the rotary cylinder 3, and this separator 25 is connected to the shaft 26.
The spring 27
is biased in the counterclockwise direction in FIG. 1, and is further operated by the batch solenoid 28 to rotate it in the clockwise direction in FIG. As will be described later, the separator 25 has a function of being inserted between a banknote that has already been turned over and a banknote that has not yet been turned over and separating the two when a banknote of a different denomination is detected. There is.

Next, a stamping mechanism for stamping a confirmation stamp on a bundle of banknotes will be explained with reference to FIG. 1.

1 is a seal holding member provided in the holder 1, and the seal holding member 30 supports a seal 31 so as to be movable in the direction of the arrow E-L, and the seal holding member 30 supports a seal 31 movably in the direction of the arrow E-L. It is movably supported so as to be close to and away from S.
Further, a dial 32 is provided at the base end of the holder 1.
is provided, and by rotating this dial 32, the stamp 31 moves in the direction of the arrow E, so that the stamp part 31a of the stamp 31 is aligned with the band B. .

Further, on the base supporting the holder 1, there is a shaft 33.
a striking arm 34 that pivots in a horizontal plane about
and a solenoid 3 that rotates the striking arm 34.
5 is provided, and by rotating this striking arm 34 by the operation of a solenoid 35, the tip of the striking arm 34 is brought into contact with the rear end 3 of the stamp.
1b from the rear to seal the stamping part 3 of the seal 31.
1a is brought close to the band seal, thereby making it possible to stamp the band seal.

Next, a mechanism for detecting double feeding of banknotes turned over by the suction shaft 5 will be described with reference to FIG. 1.

In FIG. 1, reference numerals 37 and 38 respectively indicate a double feed detection lamp and a light-receiving element (these elements constitute a double-feed detection sensor), and reference numeral 39 indicates a light-receiving element. This is a condensing lens that condenses light.

The double feed detection lamp 37 and the light receiving element 3
8 are both provided facing the rotary tube 3 side, and the light beam emitted from the double feed detection lamp 37 is irradiated from a direction crossing the turned-over banknote Sa, and The beam is irradiated to approximately the center of the turned-up portion of the banknote Sa.

And the banknotes that were irradiated with light in this way
The amount of light transmitted through the banknote Sa, that is, the amount of transmitted light, is detected by a light receiving element 38, and further, based on the amount of transmitted light detected by this light receiving element 38, a judgment of double feeding is made. That is,
If the amount of transmitted light is greater than a predetermined value, it is determined that normal feeding (single sheet feeding) is occurring, and if the amount of transmitted light is less than a predetermined value, it is determined that double feeding is occurring.

Next, the discrimination function for discriminating the denomination and front and back of banknotes will be explained with reference to FIGS. 1 and 2.

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

The light receiver 41 also includes an area sensor 42 that generates an electrical signal according to the pattern on the surface of the banknote.
and a condensing lens 43 that condenses reflected light from the banknote Sb onto the area sensor 42.
The area sensor 42 is a two-dimensional sensor in which a large number of line-shaped image sensors are arranged in a direction perpendicular to the line, and is operated by a trigger signal issued from a discrimination control circuit 46 to be described later. The amount of reflected light at a specific position (line or coordinate) in area E is converted into an electrical signal, and a waveform signal corresponding to the pattern on the banknote surface is output. In other words, the area sensor 42 is
Its horizontal direction corresponds to the X coordinate of area E, and
Its vertical direction corresponds to the Y coordinate of area E,
The vertical and horizontal coordinates of such an area sensor and the area E
Depending on the correspondence with the XY coordinates, for example, the surface pattern (line data) in area E is Y=1,
You can read by specifying the line as Y=3,
Furthermore, the read area data is stored in the ROM64.
(described later), it is possible to determine the denomination and front and back of the banknote Sb (details will be described later).

Next, with reference to FIG. 4, a counting control circuit 45 and a discrimination control circuit 46 that operate the counting mechanism and discrimination mechanism, respectively, will be explained.

That is, the counting control circuit 45 has a ROM 47 that stores a counting control program (see FIGS. 5 and 6) to be described later, and writes and reads various data according to the program stored in the ROM 47. It is composed of a RAM 48 that performs this, and a CPU 49 that controls these. Furthermore,
The CPU 49 includes, via an input side I/O port 50 and a receiver 51, a start switch 52 for instructing the start of counting operation, a detection mode switch 53 for discriminating the denomination and double feed, and a detection mode switch 53 for discriminating front and back sides. The front/back mode switch 54 is connected, and other devices such as holder position detection sensors 24A and 24B, rotary cylinder position sensor 18, pressure sensor 11, clear switch, etc., which detect whether the holder 1 is in the closed position or the open position, are connected. Operation switches 55 are connected to each.

In this embodiment, the start switch 52 is composed of a push button 60 (see FIG. 1) provided on the holder 1.
A sensor (not shown) that detects that banknotes S are loaded may be used as the start switch 52.

Further, the CPU 49 is connected to a solenoid (printing solenoid) 35, a lamp consisting of a double feed detection lamp 37 or a projector 40, a holder motor 23, and a counting motor 19 via an output side I/O port 61 and a driver 62. , pump motor 21, solenoid valve 16, batch solenoid 28, and bill counter operation panel (not shown)
A display section 63 is connected to the display section 63 for displaying the number of banknotes, presence or absence of an abnormality, etc.

On the other hand, the discrimination control circuit 46 has a ROM 64 that stores discrimination control programs (see FIGS. 7 and 8), and writes and reads various data according to the programs stored in the ROM 64. RAM65 to perform and control these
It is composed of a CPU 66. Furthermore, the above
An area sensor 34 is connected to the CPU 66 via an output I/O boat 70 and a drive circuit 71, and the output of this area sensor 34 is connected to an amplifier 72,
A/D converter 73, input side I/O boat 74
It is designed to be input to the CPU 66 via.

Note that from the drive circuit 71 to the area sensor 34
The drive signal supplied to the banknote is composed of an X-axis drive signal and a Y-axis drive signal, and by outputting these X-axis drive signals and Y-axis drive signals, the surface pattern at a specific position in area E of the banknote is determined. (area data)
is now read out. When extracting surface pattern data in area E, first output a Y-axis drive signal to determine the Y coordinate of area E (see Figure 2).
The X coordinate of area E may be determined by outputting an X-axis drive signal. For example, set Y to 1 and read the data in area E as line data (X, 1), set Y to 3 and read the data in area E as line data (X, 3), and read these data. The output multiple line data (X, 1), (X, 3), etc.
The data may be compared with reference data stored in the RAM 65 (the X-axis and Y-axis of the drive signal correspond to the X-axis and Y-axis of area E shown in FIG. 2, respectively).

On the other hand, similar to the area sensor 34, double feed detection sensors 37 and 38 are connected to the A/D converter 73 via an amplifier 78. Further, an analog switch 7 operated by a switching signal from the output side I/O port 70 is connected between these amplifiers 72 and 78 and the A/D converter 73.
These analog switches 79 and 80 send the output signal of either the area sensor 34 or the double feed detection sensors 37 and 38 to the A/D converter 73. It's summery.

Further, the CPU 49 of the counting control circuit 45 and the CPU 66 of the discrimination control circuit 46 are connected to each other via data transfer I/O ports 81 and 82, and can mutually convert data and operate in conjunction. It is configured as follows.

Hereinafter, the contents of the program stored in the ROM 47 of the counting control circuit 45 will be explained along with the operation of the banknote counting machine with reference to FIGS. 5 and 9.

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

(a) ◇ Counting control operation 1 (see Figures 5 and 9) <Step 1> Turn on the power <Step 2> Based on the output signals of the holder position detection sensors 24A and 24B, check whether the holder 1 is in the open position or not. If the answer is NO, drive the holder motor 23 to set the holder 1 to the open position (step 3).
If YES, proceed to the next step 4.

<Step 4> Based on the presence or absence of an output from the rotary cylinder position sensor 18, it is determined whether the suction shaft 5 is in the standby position (that is, the position where the suction shaft 5 directly faces the banknotes),
If NO, the counting motor 19 is driven at low speed and the suction shaft 5 is set to the standby position (step 5).
If YES, proceed to the next step 6.

<Step 6> Determine whether or not mode setting operations have been performed. If YES, various mode setting operations,
For example, the stamping mode is memorized by the operation setting of the stamping mode (step 50), and in the case of NO, the process proceeds to the next step 7.

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

<Step 8> Determine whether the detection mode switch 53 is ON or not. If YES, double feed detection lamp 37 and floodlight 40 are turned on (Step 9); if NO, Proceed to the next step 10 and start counting.

<Step 10> Based on the outputs of the holder position sensors 24A and 24B, it is determined whether the holder 1 is in the closed position or not. If NO, a holder motor drive signal (HMD) is output and the holder motor 23 is to set holder 1 to the closed position (step
11), if YES, proceed to the next step 12 (timing T ₂ ).

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

<Step 13> Determine whether the suction shaft 5 is at the starting position,
If NO, count motor drive signal (CMD)
is output, the counting motor 19 is driven in the reverse direction at low speed to set the suction shaft 5 to the starting position (step
14), and in the case of YES, proceed to the next step (timing T ₃ ).

<Step 15> It is determined whether or not the pressure judgment signal (VSW) has been output, that is, it is determined whether the vacuum pressure in the suction pipe line 7 has increased to a predetermined value. It is determined whether a predetermined time (the time required for increasing the vacuum pressure) has elapsed since timing _T3 (step 16), and if step 16 is NO, the process returns to step 15, and step 16 is
In the case of YES, the process proceeds to a suction failure processing rule (indicated by chain line A in FIG. 5), which will be described later.

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

<Step 17> When the pressure discrimination signal (VSW) is output (step 15), the counting motor drive signal (CMD) is output.
is output, and the rotating barrel 3 and suction shaft 5 start rotating.

<Step 18> The suction shaft 5 counts the bills while flipping them one by one, and every time the rotary cylinder position sensor 18 generates a signal (SNS), a trigger signal (TRG) is generated to retrieve the detection data of the area sensor 42. ) is output. Also, at this time, a counting signal (CNT) is output to count (or discriminate) the banknotes (timings _T6 to Tm).

<Step 19> Check whether the pressure judgment signal (VSW) is output, that is, whether there are no more bills to be turned over and the vacuum pressure in the suction pipe 7 cannot rise (OFF). The process proceeds to the next step 20 on the condition that it is determined to be OFF (timing T _n+1 ).

<Step 20> Stop the counting motor 19 and pump motor 21.

<Step 21> In parallel with the stopping operation of the rotary cylinder 3 in step 20, it is determined whether or not a holder open signal has been output, and if YES, the process returns to step 2 (timing Tn), if NO, wait at step 21. And step 2
If it returns to (timing Tn), holder 1
It is determined whether or not the holder 1 is opened, and a holder motor drive signal (HMD) is output until the holder 1 is opened.

Then, when the holder opens (step 4; timing T _o+1 ), the motor drive signal (HMD) is activated.
At the same time as turning off, a counting motor drive signal (CMD) is output to drive the counting motor 19. When the suction shaft 5 is moved to the standby position by the driving of 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 stopped (timing T _{o +2} ).

When the suction shaft 5 is stopped at the standby position in this way, it becomes ready to start counting immediately by the next start signal (step 7).
The next preparation is completed.

Next, the suction and defect processing rate A will be explained.

In other words, if the rotary cylinder 3 cannot be stopped at a predetermined position due to a malfunction of the brake of the counting motor 19, etc., the inside of the suction pipe 7 is not sealed from the outside, so that the rotation cylinder 3 cannot be stopped for a certain period of time or more. However, the vacuum pressure does not increase even when the pressure is turned on, and therefore the pressure judgment signal cannot turn ON (step 16).

In such a case, adjust the position of the rotary cylinder 3 by rotating the counting motor 19 in reverse at a constant speed (step
30), repeat steps 13 to 15. and,
If the vacuum pressure does not increase even after repeating this case 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 31). 34).

Next, the counting processing flow in the CPU 49 will be explained with reference to FIG.
Figures 7 and 8 regarding the determination processing flow in
This will be explained with reference to the figures.

◇Counting control operation 2 (see Figure 6) <Step 100> Start <Step 101> Determine whether the detection mode switch 53 is turned on, that is, whether it is necessary to read the pattern on the banknote surface. , in the case of YES, outputs a discrimination ON signal and a front/back mode signal (however, only when the front/back mode switch 54 is ON, the same applies hereinafter) (step 102), and then outputs these banknote discrimination signals.
The ON signal and front/back mode signal are supplied to the discrimination routine shown in FIG. 7 (indicated by arrows).

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

<Step 103> Detects the rise of the rotary cylinder position sensor output signal (SNS), and if it becomes YES, proceed to the next step.
Proceed to 104.

<Step 104> The trigger signal (TRG) is raised at the same timing as in step 103, and the output of this trigger signal (TRG) is supplied to the discrimination routine shown in FIG. 7 (indicated by an arrow).

<Step 105> Turn on the rotary cylinder position sensor output signal (SNS).
The OFF state is detected, and if it is ON (YES), it is determined whether or not the pressure judgment signal (VSW) is ON (step 106).
If NO, a discrimination OFF signal is output (step
150), and counting motor 19, pump motor 21
drive and double feed detection lamp 37, floodlight 4
The lighting of 0 is stopped (step 151). Further, in step 106, if the pressure judgment signal (VSW) is output (YES), the next step is performed.
Proceed to 107.

<Step 107> It is determined whether the detection mode switch 53 is turned on or not. If YES, proceed to step 108; if NO, proceed to step 109.

<Step 108> If a different denomination is detected, if a discrepancy between the front and back sides is detected in the front/back discrimination mode, if the pattern does not match all the reference patterns and is judged to be a discrimination error, or if double adsorption is detected. In this case, it is determined whether or not there is an input of an error signal (indicated by an arrow) outputted from the determination processing flow, and if YES, the batch solenoid 28 is operated to interrupt counting;
If the answer is NO, proceed to step 109.

<Step 109> Determine whether the batch mode is ON or not. If NO, return to step 105; if YES, proceed to step 110.

<Step 110> The number of banknotes is determined, and if it is determined that the banknote count is less than the predetermined number (NO), the process returns to step 105, and if the banknote count matches the predetermined number. If it is determined that (YES),
After turning on the batch solenoid 28 and separating counted banknotes from uncounted banknotes (step 111), a discrimination OFF signal is output (step 112) (this discrimination OFF signal is supplied to the discrimination process flow as shown by the arrow). (step 113). Then, proceed to the next step 114.

<Step 114> It is determined whether or not a clear operation has been performed to deactivate the separator 25 that was activated during the batch processing or error detection described above, and if YES, the process proceeds to step 115.

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

Next, steps 120 to 121 will be explained.

<Step 120> In step 105, the ON-OFF state of the rotary cylinder position sensor output signal (SNS) is detected,
If it is in the ON state, the routine from step 105 to step 106 (or step 110) continues;
When the OFF state is reached, the process moves to step 120. Then, similar to step 106,
It is determined whether the pressure judgment signal (VSW) is ON or not, and if this judgment is NO, the process proceeds to the next step 150 in the same way as step 1066, and a judgment OFF signal is output (step 150). At the same time, the driving of the counting motor 19 and the pump motor 21 and the lighting of the double feed detection lamp 37 and the light projector 40 are stopped (step 151). Further, if the output of the pressure determination signal (VSW) is YES, the process proceeds to step 121.

<Step 121> Determine again whether the rotary cylinder position sensor output signal (SNS) is ON or not. If NO, return to step 120; if YES, output the trigger signal (TRG). (Step 122) (This
TRG is supplied to the discrimination processing flow as shown by the arrow), and after counting the counter (TRG is supplied to the discrimination processing flow as shown by the arrow),
123) Return to step 105.

Next, steps 150 to 165 will be explained.

<Step 150> As mentioned above, if the output of the pressure judgment signal (VSW) is not detected in steps 106 and 120,
For example, if the banknotes in the standby position are not picked up or there are no banknotes to be counted, the
The OFF signal is output, and the counting motor 19,
After driving the pump motor 21 and stopping the lighting of the double feed detection lamp 37 and the floodlight 40 (step 151), the process proceeds to step 152.

<Step 152> Determine whether or not the detection mode switch 53 is turned on. If NO, proceed to step 160; if YES, proceed to step 153.

<Step 153> If the discrimination routine does not output an end signal (indicated by an arrow) for a certain period of time (step 154), for example, even though the banknotes to be counted have been set, If suction is not performed, etc., a flag indicating a residual error is set in a predetermined area of the storage section (RAM 48 or CPU 49) (step 155), and then the process proceeds to the next step 114.

Further, if an end signal is output from the determination processing flow shown in FIG. 7, the process proceeds to the next step 160.

<Step 160> It is determined whether the mode setting is set to the number of sheets check mode. If NO, proceed to step 164; if YES, proceed to step 161.

<Step 161> It is determined whether the counted value of the banknotes matches the number set in the number of banknotes check mode, and if NO, a flag indicating a mismatch error is placed in a predetermined area of the storage unit. Step
166), proceed to step 114. If the set number of sheets matches the numerical value (YES), the process advances to the next step 162.

<Step 162> Determine whether or not the mode setting is set to the stamping mode. If YES, operate the stamping solenoid 35 to stamp the seal (step 162).
163), and if NO, proceed to the next step 164.

<Step 164> Determine whether or not the addition mode is set. If YES, add the counting results of the previously counted banknotes and store the addition result in the storage unit. If so, proceed to step 115;
Counting process ends.

Next, the determination processing flow in the CPU 66 will be explained with reference to the time charts of FIGS. 7, 8, and 10.

<Step 200> Start <Step 201> Determine whether the trigger signal (TRG) (indicated by the arrow) is output from the counting routine and select YES.
In this case, proceed to the next step 202.

<Step 202> It is determined whether or not the determination ON signal (indicated by the arrow) has been output from the counting routine. If NO, the process returns to step 201. If YES, the analog switch 80 shown in FIG. 4 is activated. Select the output of the double feed detection sensors 37 and 38 to the amplifier 78,
Capture via A/D converter 73, RAM
65 (step 203), step 204
Proceed to.

<Step 204> Based on the error codes set in steps 214, 222, and 232, it is determined whether there is a mixture of different denominations, there is a discrepancy between the front and back sides, and there is a discrimination error (mixture of abnormal banknotes). Detection of mixed denominations, discrepancies between front and back sides, and discrimination abnormalities will be described in steps 213, 221, and 231).If YES, an error signal and error code are output.
After displaying the error details on the display section 63 (step 205), the process returns to step 201. The error signal output at step 205 is supplied to step 108 of the counting routine in FIG. 6 as indicated by the arrow.

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

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

<Step 206> In step 203, double feed detection sensors 37 and 38
Based on the detection data taken in from the banknote and the double comparison level set as a discrimination standard in step 217 (described later), it is determined whether or not the banknote has been double-adsorbed, and if YES, an error signal and Outputs the error code and displays the error details on the display section 63
After displaying (step 207), the process returns to step 201.

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

If NO, that is, if it is determined that there is no double adsorption, the process proceeds to the next step 208.

Note that, as in step 204, when the first trigger signal (TRG) is output, the banknote Sa for which double adsorption should be determined does not exist in the position shown in Figure 1, and the reference double comparison level has not been set. Therefore, this step 206 is always NO and the process proceeds to step 208.

<Step 208> Select the analog switch 79 shown in FIG.
The output of the area switch 34 is transferred to the amplifier 72 and the A/D
By storing the data in the RAM 65 via the converter 73, area data in the area E (data in the N line) is taken in.
Note that this area data is taken in based on the flow shown in FIG.

That is, when a capture signal is output (step 300), after setting Y to 0 and X to 0 (step 301), the process proceeds to the next step 302. and,
In this step 302, it is determined whether or not the output of the necessary N lines of data (line data) has been completed.If YES, a determination start signal is output (step 303), and the main Return to routine. If the answer is NO at step 302, the data of the specified N line is sent to step 312.
Steps 304 to 311 are looped until the data is output, and when the data is output, the process proceeds to switch 303 as described above.

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

<Step 209> In step 208, it is determined whether the captured data is of a level that does not have a pattern (i.e.,
Whether it is a black pattern on the surface 1b of the first half holder 1)
If it is YES (no data), after outputting the end signal (step 210), step
Return to 201. The end signal output at step 210 is supplied to step 153 of the counting routine in FIG. 6 as indicated by the arrow.

Further, if the captured area data is of a level having a pattern (NO), the process advances to the next step 211.

<Step 211> It is determined whether or not the banknote sucked by the suction shaft 5 is the first one. If YES, proceed to step 212; if NO, proceed to step 230.
Proceed to.

<Step 212> Based on the area data of the first banknote imported in step 208, a total of 12 patterns (4 x L patterns) of the current 3 denominations (L denominations) stored in the ROM 64 are applied. Comparing with the data (for one denomination, there are 4 patterns of front and back, forward and reverse),
Proceed to the next step 213.

<Step 213> As a result of comparing the area data of the first banknote with the reference data of the 12 patterns, it is determined whether there is a matching pattern, and if NO, it is determined that the banknote is an abnormal banknote that cannot be identified. As the storage unit (RAM
A flag indicating a discrimination abnormality is set in a predetermined area of step 65) (step 214), and the process returns to step 201.

If there is a matching pattern (YES), a flag indicating that the identified banknote is one of the three denominations is set in a predetermined area of the storage unit (RAM 65) (step 215). ), and after setting a flag indicating the front and back sides of the banknote (step
216), based on the determined denomination and front and back information.
After setting the double comparison level, which is a criterion for determining double adsorption, stored in the ROM 64 in the storage section (RAM 65) (step 217), the process advances to step 218.

<Step 230> On the other hand, if it is determined in step 211 that the bill attracted by the suction shaft 5 is not the first bill, the area data of the bill taken in in step 208 and the area data of the bill are stored in the ROM 64. specified denomination (denomination set in step 215)
The process proceeds to the next step 231 after comparing only the reference data of four patterns of front and back, forward and reverse.

<Step 231> As a result of comparing the area data of the banknote with the reference data of the four patterns, it is determined whether there is a matching pattern, and if NO, this banknote is a banknote of a different denomination (strictly speaking, (There may also be banknotes with abnormal identification)
, a flag indicating a different denomination is set in a predetermined area of the storage section (step 232), and the step
Return to 201.

Also, if there is a matched pattern (YES)
As described above, a flag indicating the front and back sides of the banknote is set in a predetermined area of the storage unit (step 216).
Furthermore, in step 217, the amount of transmitted light of the banknote is set in a predetermined area of the storage section, and the process proceeds to the next step 218.

<Step 218> It is determined whether the front/back mode switch 54 is turned on. If NO, proceed to step 201; if YES, proceed to the next step 219.

<Step 219> Check whether this banknote is the first one or not, and select NO.
If YES, proceed to step 221; if YES, proceed to the next step 220.

<Step 220> The front and back codes of the first bill set in step 216 are stored in the storage unit as front and back reference data.
It is set in the RAM 65, and based on this front/back reference data, the front/back side of the banknote is determined (step
212).

<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 or not the second and subsequent banknotes match the front and back of the first banknote. If they match (YES), the process returns to step 201; if they do not match (NO), proceed to the next step 222. A flag indicating this is set (step 222), the process returns to step 201, and steps 201 to 232 described above are repeated again.

Note that the timing of the above-mentioned trigger signal (TRG), duplex data capture, etc. is described in the timing chart of FIG. If these trigger signals (TRG), the timing of importing double data, etc. correspond to the step numbers in FIG. 7, the discrimination trigger signal corresponds to step 201,
The double data acquisition timing corresponds to step 203, below, the error check timing corresponds to step 204, and the double check timing corresponds to step 203.
206, the area data import timing corresponds to step 208, the end check timing corresponds to step 209, and the discrimination processing timing corresponds to steps 211 to 216 and steps 230 and 231. The multiple comparison level and error set timing correspond to steps 215 to 217 and steps 214, 222, and 232, respectively.

As explained in detail above, in the banknote counting machine configured as above, as shown in the time chart of FIG.
Time from startup to constant speed state (T ₅ to _{T 6} )
takes advantage of this long rise time,
Comparison and discrimination of banknotes as shown in steps 211 to 213 of the discrimination processing flow in FIG. 7 can be performed.

In other words, _{as shown} in _FIG .
When comparing T _n+2 ), the time required to count one banknote is from the 1st banknote to the _2nd banknote _. In ₂ ), the line data of the banknote can only be compared with the reference data of the pattern 4, front and back, _forward and _reverse . It is possible to compare the area data with reference data of four patterns of front and back, forward and reverse, for one denomination, for a total of 12 patterns for three denominations.

As a result, as shown in the discrimination processing flow in FIG. 7, after first determining the denomination of the first banknote (step 215),
The banknotes are compared with the four patterns of front and reverse sides of the determined denomination (step 230), and those that deviate from these four patterns are determined to be of different denominations (steps 231, 232). It becomes possible to improve the efficiency of the discrimination work.

Furthermore, as explained in step 208 above, the area data in area E of the banknote is extracted as line data along the so you can take it out
By reading out a plurality of these line data and comparing these line data with reference data stored in advance in the ROM 64, highly accurate discrimination can be performed. In other words, the line data required to distinguish banknotes can be read out arbitrarily in multiple lines by setting the number Y, for example, so that it can be used not only for Japanese banknotes but also for US dollar banknotes of different formats. This has the effect that the denomination and front/back discrimination functions of this device can be adapted.

In addition, when changing the program for discriminating Japanese banknotes to a program for discriminating US dollar banknotes, this is done by replacing the ROM 64 or the like.

Further, in the discrimination control circuit 46 described above, the line data is extracted along the X axis, but the line data is not limited to this, and may be extracted along the Y axis.

Furthermore, as a sensor for reading the surface pattern in the area E, a plurality of one-dimensional image sensors are arranged at intervals with respect to the Y-axis or the X-axis shown in FIG. The detected data may be read out by specifying a column.

Furthermore, in this banknote counting machine, the arrangement of the stamping mechanism for stamping the band and the double-feed detection mechanism for detecting double-feed is arbitrary.

"Effects of the Invention" As explained in detail above, according to the present invention, a plurality of different lines are specified from among the data indicating the banknote surface detected by the area sensor, and these lines are selectively extracted as line data. Therefore, if there is a difference in the appearance of the banknotes (US banknotes,
Even for Japanese banknotes, etc., the detection area for determining the denomination, front and back, etc. can be set to the optimal line, and the determination can be performed with high accuracy.
In addition, by appropriately changing the line specified by the drive circuit, this detection area can be adjusted according to the aspect of the banknote, without having to specifically change the position of the sensor for detecting the surface of the banknote, as in the conventional case. (U.S. banknotes, Japanese banknotes, etc.) can be set as appropriate depending on the type of banknote (US banknote, Japanese banknote, etc.), thereby achieving the effect that a wide variety of banknotes can be easily distinguished while maintaining high accuracy.

In addition, for the first bill, standard data of L denomination and 4 patterns of front and reverse sides were selected and compared with the line data, so it took a lot of time to start the suction shaft, and as a result, The time when processing the first banknote, which takes time to count, can be effectively utilized. Complete identification of the first banknote (denomination, front and back,
(forward and reverse) can be performed accurately.

In addition, for the second and subsequent banknotes, standard data for four patterns of forward and reverse front and back sides corresponding to the denomination of the first banknote were selected and compared with the line data, so that This has the effect that the second and subsequent banknotes whose denominations have been determined can be discriminated at high speed, and the time required for banknote discrimination can be reduced overall.

[Brief explanation of drawings]

Figures 1 to 10 show an embodiment of the present invention, with Figure 1 being a plan view and Figure 2 being the same as in Figure 1.
Fig. 3 is a sectional view of the suction shaft and suction pipe system, Fig. 4 is a block diagram of the counting control circuit and discrimination control circuit, Fig. 5 is a flowchart of the counting control operation, and Fig. 6 is a diagram taken along the line. A diagram showing the CPU operation of the counting control circuit,
7 and 8 are diagrams showing the CPU operation of the discrimination control circuit, and FIGS. 9 and 10 are flowcharts of the counting control operation and the discrimination control operation. 1... Holder, 5... Suction shaft, 40... Floodlight (lamp), 42... Area sensor, 64...
ROM, 66...CPU (all pattern discrimination function, denomination memory function, specific pattern discrimination function), 71...
Drive circuit, 73...A/D converter.

Claims (1)

[Scope of Claims] 1. In a different type bill discriminating device in a bill counting machine that counts bills loaded in a holder by suctioning them to a suction shaft and turning them over one by one, A lamp that irradiates a light beam onto the surface of the banknote, an area sensor that detects the light beam reflected from the surface of the banknote in a two-dimensional manner, and a plurality of different lines specified from among the data indicating the banknote surface detected by the area sensor. A drive circuit that extracts this as line data; a ROM that stores a plurality of reference data of banknotes to be compared with the line data; /D converter and compares the line data with the corresponding reference data in the ROM to identify banknotes.
This CPU selects reference data of four patterns of L denominations, front and reverse, front and back of the first banknote attracted by the suction shaft, and performs all pattern discrimination for comparing with the line data. function, a denomination storage function that stores the denomination of the first banknote determined by this all-pattern discrimination function, and a denomination storage function that stores the denomination of the first banknote determined by the all-pattern discrimination function, and a denomination storage function that stores the denomination of the first banknote determined by the all-pattern discrimination function, and a denomination storage function that stores the denomination of the first banknote determined by the all-pattern discrimination function. A banknote counting machine having a specific pattern discrimination function that selects standard data of four patterns of front and reverse sides corresponding to the denomination of the first banknote stored in the banknote and compares it with the line data. Discrimination device.