JP3112222B2 - Banknote handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bill processing apparatus used for various automatic service devices such as automatic vending machines, and more particularly to a bill processing apparatus which performs bill discrimination processing even if slip occurs between a bill and a conveyor belt for carrying bills. The present invention relates to a banknote processing apparatus capable of performing operation reliably.

[0002]

2. Description of the Related Art A banknote handling apparatus used in various automatic service devices such as an automatic vending machine transports a bill inserted from a bill insertion slot through a device using a transport belt driven by a transport motor. Through the position of the identification sensor,
The banknote determined to be a genuine note based on the output of the banknote identification sensor is temporarily held (escrowed), and then stored in a stacker according to a stack command.

[0003] Here, a magnetic sensor, an optical sensor, or a combination thereof is used as a bill discriminating sensor, and a genuine bill discriminating device stores in advance output values sequentially obtained from the bill discriminating sensor as the bill passes. It is determined whether or not it is a genuine bill by sequentially comparing it with a determination reference value for use.

[0004] That is, data of each position of a bill (hereinafter referred to as a bill address) and each reference value (identification data) stored in advance corresponding to each address of the bill for genuine bill determination.
And sequentially, if the data of each address of the bill is within the allowable range of the identification data, the inserted bill is accepted as a genuine bill, and the data of each address of the bill is within the allowable range of the identification data. If not, the inserted bill is configured to be returned as a counterfeit note.

[0005]

The problem with the above-mentioned conventional banknote handling apparatus is that if a slippage occurs between the banknote and the transport belt during the banknote identification and transport, the address of the banknote and the identification data are used. In this case, even if the inserted bill is a genuine bill, the data of each address of the bill does not match each identification data, and the inserted bill is returned as a fake bill. Inconvenience that it occurs.

Here, the cause of slippage between the bill and the conveyor belt is considered to be abrasion of the conveyor belt, a chemical change of the surface, adhesion of liquid, and the like. This is inevitable in vending machines and the like that are placed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bill processing apparatus capable of reliably performing a bill discriminating process even when a slip occurs between a transport belt for transporting bills and the bill. .

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a bill transporter for transporting a bill inserted into a bill insertion slot to the inside of an apparatus body along a bill transport path using a transport belt. Means, an identification sensor means disposed on the bill transport path and reading data for determining whether or not the transported bill is a genuine bill, and determining that the bill is genuine based on the data read by the identification sensor means And a stacking means for stacking the bills stacked on a stacker, wherein the billing device is output from the identification sensor means in synchronization with a synchronization signal generated in response to the rotation of a transport motor driving the transport belt. Sampling means for sequentially sampling data; criterion value storage means for storing a criterion value of a bill in correspondence with sampling values at a plurality of locations on the bill; The sampling value sampled by the ring means is sequentially compared with the judgment reference value stored in the judgment reference value storage means, and if no match is obtained by the comparison, the result is stored in the judgment reference value storage means. A comparing unit that compares the determination reference value with the next sampling value; a mismatch counter that counts the number of times a match output is not obtained by the comparison unit; and a count value that is set by the mismatch counter. A counterfeit note output generating means for generating a counterfeit note output when the value exceeds a predetermined value.

Further, according to the present invention, in the above configuration, when a coincidence output is not obtained by the comparison by the comparing means, a non-coincidence address storage means for storing an address corresponding to a judgment reference value from which a coincidence output was not obtained. Is further provided.

Further, the present invention, in the above configuration, further comprises a comprehensive discriminating means for performing a comprehensive discrimination of the bills by using other sampling values except for a sampling value corresponding to the address stored in the mismatch address storing means. It is characterized by the following.

Further, the present invention provides a slip detecting means for detecting slip between the transport belt and the bill in a plurality of sections of the bill transport path, and a slip between the transport belt and the bill detected by the slip detecting means. In the case where the data is not stored in the non-coincidence address storage means, an abnormal signal generating means for generating an abnormal signal is further provided.

[0012]

According to the present invention, data output from the identification sensor means is sequentially sampled by the sampling means in synchronization with a synchronization signal generated in accordance with the rotation of the conveyance motor driving the conveyance belt, and the data is outputted by the comparison means. While sequentially comparing the sampled sampled value with the determination reference value stored in the determination reference value storage means, and when no match is obtained by the comparison, the determination reference value stored in the determination reference value storage means is compared with the determination reference value stored in the determination reference value storage means. It is compared with the next sampling value, and the number of times that no match output is obtained by the comparison is counted by the mismatch counter means. If the count value by the mismatch counter means exceeds a predetermined value, a false value is obtained. A counterfeit note output is generated by the note output generating means.

Here, the criterion value storage means stores the criterion value at each address, and advances the address from which the criterion value is read out only when a coincidence output is obtained by the comparison by the comparing means. It is configured as follows.

Further, in the present invention, when a match output is not obtained by the comparison by the comparing means, the address corresponding to the judgment reference value at which the match output was not obtained is stored in the mismatch address storage means.

Further, according to the present invention, in the above configuration,
Comprehensive discrimination of banknotes is performed by the comprehensive discriminating means using other sampling values except for the sampling value corresponding to the address stored in the mismatch address storing means.

Further, when the counterfeit note output is generated from the counterfeit note output generating means, the banknote transport means reverses the transport belt at the time when the counterfeit note output is generated and returns the bill to the bill insertion slot. .

According to the invention, slips between the transport belt and the bill in a plurality of sections of the bill transport path are detected by slip detecting means, respectively, and slip between the transport belt and the bill is detected by the slip detecting means. If there is a memory in the mismatch address storage means even though it is not stored, an abnormal signal is generated by the abnormal signal generating means.

Here, the slip detecting means includes: setting means for presetting the number of the synchronization signals generated in the plurality of sections when the bill is normally conveyed by the conveying belt; A slip detection counter that counts the number of synchronization signals actually generated in the section; and a slip occurrence detection that detects a slip when the set value set by the setting unit does not match the count value of the slip detection counter. Means.

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a banknote processing apparatus according to an embodiment of the present invention;

FIG. 1 is a block diagram showing the overall configuration of a control system of a banknote processing apparatus according to the present invention, and FIG. 2 is a side view showing a schematic configuration of a banknote processing apparatus 500 according to the present invention. .

In FIG. 1 and FIG. 2, the bill processing apparatus 500 is provided with an entrance sensor 10 for detecting a bill 300 inserted from the bill insertion slot 11 near the bill insertion slot 11. The detection output of the entrance sensor 10 is
0, the control unit 100 drives the bill transport motor 50 via the drive circuit 51 based on the detection output of the entrance sensor 10, whereby the transport mechanism (not shown) starts operating, and inserts the bill. Banknote 3 inserted from mouth 11
00 is transported along the bill transport path 400.

Here, the bill transport belt 52 suspended between the pulley 53 and the pulley 54 constitutes a part of the transport mechanism, and the bill 300 reaching the position where the bill transport belt 52 is disposed. Is transported along the bill transport path 400 by the bill transport belt 52.

The bill transport path 400 has an entrance shutter 71.
Is provided. The entrance shutter 71 is moved up and down by a shutter motor 70 to open and close the bill transport path 400, and the shutter motor 70 is driven by the control unit 100 via a drive circuit 71.

The bill transport path 400 is provided with an optical sensor 20 and a magnetic sensor 30 for identifying bills.

The bill 300 conveyed along the bill conveyance path 400 has necessary data read by the optical sensor 20 and the magnetic sensor 30. The outputs of the optical sensor 20 and the magnetic sensor 30 are input to the control unit 100, and the control unit 100
Is determined based on the output of the bill 300.

The bill transport path 400 is provided with a bill passing sensor 40 for detecting the passage of the bill 300 passing through the position where the optical sensor 20 and the magnetic sensor 30 are provided. This detection output is applied to the control unit 100.

A stacker 90 for accumulating the bills 300 conveyed on the bill conveying path 400 is provided at an end point portion of the bill conveying path 400. The banknotes 300 transported along the banknote transport path 400 are accumulated in the stacker 90 by driving the stack motor 80 using a stack mechanism (not shown).

The stack motor 80 includes a control unit 100
It is driven via a drive circuit 81 by a stack command from.

The banknote transport motor 50 is provided with a synchronization signal generator 60 for generating a synchronization signal in synchronization with the rotation of the banknote transport motor 50. The signal is applied to the control unit 100, and is used for a process corresponding to a slip between the bill and the transport belt 52, which will be described in detail later.

In this embodiment, the optical sensor 20
As shown in FIG. 3, the magnetic sensor 30 includes three optical sensors 20-1, 20-2, 20-3, and 2 arranged in a line in a direction perpendicular to the bill transport direction A of the bill transport path 400. Magnetic sensors 30-1 and 30-2,
As will be described in detail later, the bills conveyed along the bill conveyance path 400 include the three optical sensors 20-1, 20-2,
The authenticity is determined based on the detection outputs of 20-3 and the two magnetic sensors 30-1 and 30-2.

Next, referring to FIG. 2 and FIGS. 4 to 8, a schematic operation of the bill processing apparatus of this embodiment will be described.

As shown in FIG. 2, when the bill 300 is inserted from the bill insertion slot 11, the bill 300 is first detected by the entrance sensor 10. When the insertion of the bill 300 is detected by the entrance sensor 10, the shutter motor 70 is driven by the detection output of the entrance sensor 10, the shutter 71 is moved upward as shown in FIG. Is done. In addition, the bill output motor is driven by the detection output of the entrance sensor 10, and the bill 30 inserted from the bill insertion slot 11 by a transport mechanism (not shown).
0 is guided inside the apparatus and is transported upward by the transport belt 52. When the leading end of the bill 300 reaches the position where the optical sensor 20 is provided, the operation of identifying the bill 300 by the optical sensor 20 is started.

By the way, in this embodiment, the judgment of the bill 300 is made at any time based on the detection output of the optical sensor 20, and then the comprehensive judgment is made based on the detection output of the optical sensor 20 and the detection output of the magnetic sensor 30. It is configured.

That is, in this embodiment, the bill 300 is divided into 40 points along the length of the bill,
The detection output of the optical sensor 20 is sampled at a point of 0, and the sampled value is sequentially compared with a predetermined reference value (identification data) corresponding to the 40 points. If not, the bill is determined to be a counterfeit note at this point, and the banknote transport motor 50 is rotated in reverse, whereby the banknote determined to be a counterfeit note is returned to the bill insertion slot 11, which is a so-called occasional determination. Have been.

The detection data of the optical sensor 20 and the detection data of the magnetic sensor 30 are temporarily stored and stored in the optical sensor 2.
A comprehensive judgment is made based on these stored data for a banknote that has been determined to be a genuine note in the occasional determination of 0.

In the above description, the judgment is made at any time based on the output of the optical sensor 20. However, the judgment may be made at any time in consideration of the output of the magnetic sensor 30.

The transport belt 52 is moved along the bill transport path 400.
As shown in FIG. 5, when the leading end of the bill 300 conveyed by the robot reaches the position where the bill passing sensor 40 is provided, the bill passing sensor 40 is turned on, and further proceeds as shown in the bill 300. As shown in FIG. 6, when the rear end of the bill 300 reaches the position where the magnetic sensor 30 is provided, the overall judgment based on the detection data of the magnetic sensor 30 is performed,
Here, when it is determined that the bill 300 is a genuine bill,
By driving the shutter motor 70, the shutter 71 is moved downward, and the bill conveyance path 400 is closed.

When the bill 300 further advances along the bill transport path 400 and the rear end of the bill 300 reaches the position where the bill passing sensor 40 is disposed as shown in FIG. 7, the bill passing sensor 40 is turned off. Then, the bill 300 is put into a temporary holding state (escrow state).

In this state, when a stack command is issued from the control unit 100, the bill 300 is advanced to the position shown in FIG. 8 by the driving of the transport belt 52, and at this position, as shown by an arrow B by a stack mechanism (not shown). And is stored in the stacker 90.

FIG. 9 is a flowchart showing the initial operation of the banknote handling machine of this embodiment when the power is inserted.

In an initial operation such as when a power supply is inserted, first, initial setting of the control unit 100, that is, clearing of a storage device (RAM) (not shown), port initialization, and the like are performed (step 101). Next, it is checked whether a door (not shown) of the stacker 90 is open (step 102). Here, if the door of the stacker 90 is open, the door is closed, and then it is checked whether a bill is present at the identification unit, that is, at the position where the optical sensor 20 and the magnetic sensor 30 are disposed (Step 1).
03) If there is, a refund operation of this bill is performed (step 104), and if not, it is checked next whether there is a bill on the bill path, that is, the bill transport path 400 (step 10).
5). Here, when there is a bill on the bill transport path 400, a collecting operation for taking in the bill is performed (Step 10).
6) If not, the shutter motor 70 is driven to close the shutter (step 107), and thereafter, the stack motor 80 is driven to perform a stacking operation of accumulating the bills on the bill transport path 400 in the stacker 90 (step 107). 10
8) Standby state.

FIG. 10 is a flowchart showing the operation in the standby state.

In this operation, first, the optical sensor 10
It is checked whether there is any abnormality in the optical sensor 10 (step 111).
If there is no abnormality, check if there is an abnormality in the switches (step 112). If there is no abnormality, drive the shutter motor 70 to open the shutter (step 113), and check if there is a bill in the entrance sensor 10. (Step 11
4) If there is a bill, the process proceeds to a bill insertion process; otherwise, the process returns to a standby state.

FIG. 11 is a flow chart showing a bill insertion process when a bill is inserted into the bill insertion slot.

In the bill insertion process, first, a bill is discriminated based on the detection outputs of the optical sensor 20 and the magnetic sensor 30 (step 121), and if the bill inserted by this bill discrimination process is a genuine bill. If it is determined (step 122), the shutter motor 70 is driven to close the shutter (step 123), and the bills determined to be genuine are counted up (step 124), and then temporarily held (escrowed).

If it is determined in step 122 that the bill is not a genuine bill, that is, it is determined to be a counterfeit one, the banknote transport motor 50 is reversed to perform a refund operation of returning the banknote determined to be counterfeit to the banknote insertion slot 11 (step 125) Standby state.

FIG. 12 is a flowchart showing the operation at the time of temporary suspension (escrow).

At the time of temporary suspension (escrow), it is first checked whether a refund command is issued (step 131). If there is a refund command, a refund operation is performed (step 13).
3) Standby state.

If there is no refund command in step 131, it is next checked whether or not there is a collection command, that is, a stack command (step 132). If there is a collection command, a collection operation is performed (step 134). ), It goes into a standby state. If there is no payment command in step 132, step 1
Return to 31.

Next, details of the bill discriminating process in this embodiment will be described.

FIG. 13 is a functional block diagram of a part related to the bill discriminating process of the control unit 100 shown in FIG. 1 extracted.

As described above, in this embodiment,
The bill 300 is divided into N (= 40) points along the length direction of the bill, and the light sensor 2
0, that is, the detection outputs of the optical sensors 20-1, 20-2, and 20-3 are sampled, and the sampled values are sequentially compared with predetermined judgment reference values (identification data) corresponding to the N points. The banknote is determined as needed based on whether or not this sampling value is within the allowable range of the identification data.

Therefore, in this embodiment, the control unit 10
Has a judgment value memory 101 for storing judgment reference values (identification data) corresponding to the N points.

In this embodiment, the output RXL of the optical sensor 20-1 and the output RXL of the optical sensor 20-2 are used.
C, from the output RXR of the optical sensor 20-3, for example, RX
R / (RXL + RXC + RXR) calculation unit 102
Based on the calculated value Di, the comparison unit 103 makes a comparison judgment with a determination reference value (identification data).

That is, the calculated value Di corresponding to the above-mentioned 40 points in the case of a genuine bill is stored in the judgment value memory 101.
Is stored in advance at each address as identification data D0i (i = 1 to N).
Samples the operation value Di of the operation unit 102 in accordance with the synchronization signal generated from the synchronization signal generation unit 60 and adds the operation value Di to the comparison unit 103.

The judgment value memory 101 reads out the identification data D0i corresponding to the sampling value Di of the arithmetic unit 102 under the control of the judgment control unit 104, and
Add to 03.

The comparing section 103 sequentially compares the sampling value Di from the calculating section 102 with the identification data D0i read from the judgment value memory 101, and this sampling value Di matches the identification data D0i, If the value Di falls within the allowable range of the identification data D0i, a coincidence output is generated.

When a coincidence output is generated from the comparison unit 103, the discrimination control unit 104 advances the address of the judgment value memory 101 by "1", and reads the identification data read from the next address of the judgment value memory 101. D0i + 1 and the sampling value Di + 1 from the arithmetic unit 102 sampled at the timing of the next synchronization signal are then compared by the comparing unit 103.

As described above, each time the comparison unit 103 generates a coincidence output, the address of the judgment value memory 101 is set to “1”.
The sampling value Di from the arithmetic unit 102
Is the identification data D0 read from the determination value memory 101.
i and a comparison unit 103.

By the way, for example, when a slip occurs between the transport belt 52 and the bill 300 shown in FIG. 4, even if a synchronization signal is generated from the synchronization signal generator 60, the bill does not advance by that amount. , The sampling value Di from the calculation unit 102 does not correspond to the identification data D0i read from the determination value memory 101.

Therefore, in this embodiment, the comparison unit 1
03, the sampling value Di from the calculation unit 102
And the identification data D0i from the determination value memory 101 do not match, it is determined that a slip may have occurred between the transport belt 52 and the banknote 300, and the next sampling is performed without advancing the address of the determination value memory 101. Compare with value. In this case, addresses that do not match, that is, mismatch, are stored in the mismatch address storage unit 107 in the discrimination control unit 104, and the number of times this mismatch occurs is counted by the NG counter 105.

When the count value of the NG counter 105 becomes n (for example, “10”), the discrimination control unit 1
04 judges this bill as a counterfeit note and outputs a counterfeit note signal. When the address of the determination value memory 101 has advanced to N without the count value of the NG counter 105 reaching n, the detection outputs of the optical sensors 20-1, 20-2, and 20-3 and the magnetic sensor 30-1 , 30-2 based on the detection outputs. That is, the optical sensors 20-1, 2
0-2, 20-3 detection output and magnetic sensor 30-
The detection outputs of 1, 30-2 are sampled at the timing of the synchronization signal generated from the synchronization signal generation unit 60,
It is stored in a memory (not shown) corresponding to the entire area of the bill, and comprehensive judgment is performed based on the sampling data stored in this memory. Here, in this comprehensive judgment,
The data corresponding to the address stored in the mismatch address storage unit 107 is excluded.

FIG. 14 is a flowchart showing the above operation in the discrimination control unit 104.

That is, the discrimination control unit 104 first sets N
The G counter 105 is cleared (step 201), and the read address of the judgment value memory 101 is set to an initial value, that is, "1" (step 202).

Next, the output of the optical sensor corresponding to the synchronizing signal generated from the synchronizing signal
02 is sampled (Step 203), and the sampled value (Di) is compared with the judgment value (identification data D0i) read from the judgment value memory 101 (Step 204).

In this comparison, when a match output is obtained (step 205), the judgment value address, that is, the read address of the judgment value memory 101 is incremented by "1" (step 207), and the judgment value address becomes N (= 4).
0) is checked (step 207), where N
If it has not reached (= 40), the process returns to step 203, and the processing from step 203 to step 207 is repeated until it reaches N (= 40).

If no coincidence output is obtained in step 205, it is determined that a slip may have occurred between the transport belt and the bill, and the count value of the NG counter 105 is incremented by "1" (step 211). ). In addition,
In step 205, the address at which the mismatch output has occurred is stored in the mismatch address storage unit 107 in the discrimination control unit 104.

Next, the count value of the NG counter 105 is n
It is checked whether (= 10) has been reached (step 212), and if not, the process returns to step 203. In this case, since the judgment value address has not been incremented, in step 204, the judgment value (identification data D0i) read from the previous judgment value memory 101 is compared with the next sampling value Di + 1.

This operation is repeated, and step 2
At 12, the count value of the NG counter 105 is n (= 1).
0), the inserted bill is determined to be a counterfeit note, and a counterfeit note signal is output (step 21).
3).

If the judgment value address reaches N (= 40) in step 207, it means that the inserted bill is judged to be genuine in the occasional judgment based on the detection output of the optical sensor 20. Comprehensive determination is performed based on the detection data of the sensor 20 and the detection data of the magnetic sensor 30 (step 208). Here, in this comprehensive judgment, data corresponding to the address stored in the mismatch address storage unit 107 is excluded.

If it is determined that the bill is genuine (step 209), a genuine bill signal is output (step 21).
0), this process ends.

If it is determined in step 209 that the bill is not genuine, a counterfeit signal is output (step 213).
This processing ends.

FIG. 15 is a timing chart showing an example of an operation when a slip occurs between the transport belt and the bill. In FIG. 15, FIG.
15A shows a synchronization signal address corresponding to the timing of the synchronization signal, FIG. 15B shows a sampling value from the optical sensor, and FIG.
15 shows the determination value (identification data) read out from FIG.
15D shows a determination value address which is a read address of the determination value memory 101, FIG. 15E shows a count value of the NG counter 105, and FIG. 15F shows a storage of the mismatch address storage unit 107. Show the contents.

In this example, the synchronization signal address "1"
In, the sampling value is “A” and the judgment value is “A” at this time.
become.

At the next synchronization signal address "2", a sampling value "B" is obtained. At this time, the judgment value is "B".

However, at the next synchronization signal address "3", the sampling value is "B", but at this time the judgment value is "C". In this case, the two values do not match, and the comparison is NG. . In this case, it is determined that a slip has occurred between the transport belt and the bill, the count value of the NG counter 105 becomes “1”, and “3” is stored in the mismatch address storage unit 107 as the mismatch address.

At the next synchronization signal address "4",
As the sampling value, "C" is obtained, and the determination value at this time is "C", and both match, and the comparison is OK.

At the next synchronizing signal address "5", a sampling value "D" is obtained. At this time, the judgment value is "D".

At the next synchronizing signal address "6", a sampling value "E" is obtained. At this time, the judgment value is "E".

However, at the next synchronization signal address "7", the sampling value is "E", but at this time, the judgment value is "F", and the two values do not match, and the comparison is NG. In this case, it is determined that a slip has occurred between the transport belt and the bill, the count value of the NG counter 105 becomes “2”, and “7” is newly stored in the mismatch address storage unit 107 as a mismatch address. .

At the next synchronizing signal address "8", the sampling value is "E". At this time, the judgment value is "F".
In this case, it is determined that a slip has occurred between the transport belt and the bill, and the count value of the NG counter 105 becomes “3”,
“8” is newly stored in the mismatch address storage unit 107 as the mismatch address.

At the next synchronization signal address "9",
As the sampling value, "F" is obtained, and the determination value at this time is "F", and both match, and the comparison is OK.

At the next synchronization signal address "10", a sampling value "G" is obtained. At this time, the judgment value is "G".

As described above, every time the comparison NG occurs, the count value of the NG counter 105 is incremented by “1”.
Each time a new mismatch address is added to the mismatch address storage unit 107.

Here, in this embodiment, when the count value of the NG counter 105 reaches a predetermined value, for example, "10", a counterfeit note signal is generated, and the bill is refunded as a counterfeit note. In the above-described embodiment, the NG counter 105 counts the accumulated value of the comparison NG and generates the counterfeit note signal. However, the NG continuation counter 108 counts the number of times the comparison NG occurs continuously. And a counterfeit note signal may be generated in accordance with the count value of the NG continuous counter 108.

Further, in the above embodiment, the slip detecting means for directly detecting the slip between the transport belt and the bill in the specific section of the bill transport path 400 is provided, and the slip is not detected by the slip detecting means. Regardless, if a mismatch address is stored in the mismatch address storage unit 107, an abnormal signal is output, and processing such as refund of the bill is performed. This operation is performed using the output of the optical sensor 20, the output of the bill passage sensor 40, and the output of the slip detection counter 106 that counts up based on the synchronization signal shown in FIG.

FIG. 16 is a flowchart showing the above operation.

In this flowchart, the first section from when the optical sensor 20 is turned on to when the bill passing sensor 40 is turned on, and the first section between when the bill passing sensor 40 is turned on and when the bill passing sensor 40 is turned off. The slip between the conveyor belt and the banknote in the section 2 is detected based on the count value of the slip detection counter 106, and the slip address is detected based on the count value of the slip detection counter 106, although the slip is not detected. If a mismatch address is stored in the storage unit 107, an abnormal signal is output.

In FIG. 16, first, it is checked whether or not the optical sensor 20 is turned on (step 221). When the optical sensor 20 is turned on, the slip detection counter 106 is cleared and the counting of the slip detection counter 106 is started (step 22).
2). Here, the slip detection counter 106 counts a synchronization signal generated from the synchronization signal generator 60.

Next, it is checked whether or not the bill passage sensor 40 is turned on (step 223). When the bill passage sensor 40 is turned on, the count value of the slip detection counter 106 at this time and the preset value N1, ie, the bill is A comparison is made with a value corresponding to the number of synchronization signals generated in the first section from when the optical sensor 20 is turned on to when the bill passing sensor 40 is turned on when the paper is conveyed without slippage (step 2).
24). Here, the count value of the detection counter 106 is the value N1.
Next, it is checked whether or not the mismatched address corresponding to the first section is stored in the mismatched address storage unit 107 (step 225).

Here, if the mismatch address corresponding to the first section is stored in the mismatch address storage unit 107, an abnormal signal is output (step 230).

If it is determined in step 230 that the mismatch address corresponding to the first section is not stored in the mismatch address storage unit 107, the slip detection counter 106 is cleared and the slip detection counter 106 starts counting ( Step 226). Here, the slip detection counter 106 counts a synchronization signal generated from the synchronization signal generator 60. Next, it is checked whether or not the bill passage sensor 40 is turned off (step 227). When the bill passage sensor 40 is turned off, the count value of the slip detection counter 106 at this time and a preset value N2, that is, the bill is transported without slipping. Then, a value corresponding to the number of synchronization signals generated in the second section from when the bill passage sensor 40 is turned on to when the bill passage sensor 40 is turned off is compared (step 228).
Here, if the count value of the detection counter 106 matches the value N2, it is next checked whether or not the mismatched address corresponding to the second section is stored in the mismatched address storage unit 107 (step 229).

Here, when the mismatch address corresponding to the second section is stored in the mismatch address storage unit 107, an abnormal signal is output (step 230).

According to such a configuration, counterfeit bills can be reliably eliminated.

[0095]

As described above, according to the present invention, the data output from the identification sensor means is sampled in synchronization with the synchronization signal generated in response to the rotation of the transport motor driving the transport belt. And sequentially comparing the sampled sampled value with the judgment reference value stored in the judgment reference value storage means by the comparing means. If no match is obtained by the comparison, the judgment reference value The determination reference value stored in the storage means is compared with the next sampling value, and the number of times that a match output is not obtained by the comparison is counted by the mismatch counter means, and the count value by the mismatch counter means is set in advance. When a predetermined value is exceeded, the counterfeit note output generating means generates a counterfeit note output. Even if slippage between the banknote becomes possible to reliably perform the bill discrimination process.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a control system of an embodiment of a banknote handling apparatus according to the present invention.

FIG. 2 is a side view showing a schematic configuration of an embodiment of the bill processing apparatus according to the present invention.

FIG. 3 is a diagram showing an arrangement example of an optical sensor and a magnetic sensor in the embodiment.

FIG. 4 is a view for explaining the schematic operation of this embodiment.

FIG. 5 is a view for explaining the schematic operation of this embodiment.

FIG. 6 is a view for explaining the schematic operation of this embodiment.

FIG. 7 is a view for explaining the schematic operation of this embodiment.

FIG. 8 is a view for explaining the schematic operation of this embodiment.

FIG. 9 is a flowchart showing an initial operation of the bill processing apparatus of this embodiment when a power supply is inserted.

FIG. 10 is a flowchart showing the operation of the banknote handling apparatus of this embodiment in a standby state.

FIG. 11 is a flowchart showing an operation when a bill is inserted into a bill insertion slot of the bill processing apparatus of the embodiment.

FIG. 12 is a flowchart showing an operation of the banknote processing apparatus of this embodiment at the time of temporary holding (escrow).

FIG. 13 is a functional block diagram in which a portion related to a bill discriminating process of the control unit 100 shown in FIG. 1 is extracted.

FIG. 14 is a flowchart showing the operation of the discrimination control unit shown in FIG.

FIG. 15 is a timing chart showing an example of an operation when a slip occurs between the transport belt and the banknote.

FIG. 16 is a flowchart showing another operation of the discrimination control unit shown in FIG. 13;

[Explanation of symbols]

 Reference Signs List 10 entrance sensor 11 bill insertion slot 20 optical sensor 30 magnetic sensor 40 bill passage sensor 50 bill transport motor 52 bill transport belt 60 synchronization signal generating unit 70 shutter motor 71 shutter 80 stack motor 90 stacker 100 control unit 300 bill 400 bill transport path 500 Banknote handling equipment

──────────────────────────────────────────────────続 き Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G07D 7/00

Claims (7)

(57) [Claims] 1. A bill transporting means for transporting a bill inserted into a bill insertion slot along a bill transport path into the apparatus main body using a transport belt; and a bill disposed and transported in the bill transport path. Bill processing comprising: identification sensor means for reading data for determining whether or not the bill is genuine; and stack means for stacking, on a stacker, bills determined to be genuine based on data read by the identification sensor means. In the apparatus, sampling means for sequentially sampling data output from the identification sensor means in synchronization with a synchronization signal generated in response to rotation of a conveyance motor for driving the conveyance belt; and A criterion value storage means for storing corresponding to a plurality of sampling values of a banknote, and a sampling value sampled by the sampling means and The determination reference values stored in the constant reference value storage means are sequentially compared, and if no match is obtained by the comparison, the determination reference value stored in the determination reference value storage means and the next sampling value are compared. Comparing means for comparing; mismatch counter means for counting the number of times a match output was not obtained by the comparison means; counterfeit note output when the count value of the mismatch counter means exceeds a predetermined value. And a counterfeit note output generating means for generating the bill. 2. The criterion value storage means stores the criterion value at each address, and increments an address from which the criterion value is read out only when a match output is obtained by comparison by the comparing means. The bill processing device according to claim 1, wherein: 3. A non-coincidence address storage means for storing an address corresponding to a criterion value for which no coincidence output is obtained when no coincidence output is obtained by comparison by said comparison means. The banknote processing apparatus according to claim 2, wherein 4. The apparatus according to claim 3, further comprising a comprehensive discriminating means for performing a comprehensive discrimination of the bill by using other sampling values except the sampling value corresponding to the address stored in the mismatched address storage means. A banknote processing apparatus according to the above. 5. When the counterfeit note output is generated from the counterfeit note output generating means, the banknote transport means reverses the transport belt at the time when the counterfeit note output is generated to insert the bill into the bill. The bill processing device according to claim 1, wherein the bill is returned to a mouth. 6. A slip detecting means for detecting slip between the transport belt and the bill in a plurality of sections of the bill transport path, respectively, wherein a slip between the transport belt and the bill is not detected by the slip detecting means. The banknote processing apparatus according to claim 3, further comprising an abnormal signal generating means for generating an abnormal signal when the mismatch address storage means stores the data. 7. The slip detecting means includes: setting means for presetting the number of the synchronization signals generated in the plurality of sections when the bill is normally conveyed by the conveying belt; A slip detection counter that counts the number of synchronization signals actually generated in the section; and a slip occurrence detection that detects as slip when the set value set by the setting unit does not match the count value of the slip detection counter. The bill processing apparatus according to claim 5, comprising means.