JPS5853796B2 - Banknote authenticity determination method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a banknote authenticity determination system, and in particular, for example, a banknote authenticity determination system that determines whether or not a banknote inserted into a coin handling machine is a genuine banknote. Currency handling machines such as currency exchange machines and automatic deposit machines are installed at these facilities.

When a customer inserts a bill into such a bill handling machine, a built-in pill checker detects whether the bill is a legitimate bill and also determines its denomination.

FIG. 1 is a block diagram of a money handling machine which is the background of this invention.

Hereinafter, with reference to FIG. 1, a description will be given of an authenticity determination method for determining whether or not an inserted banknote in a conventional money handling machine is a genuine banknote.

In the configuration, the money handling machine includes a pill checker 1 and a control unit 2.
It consists of

The pill checker 1 detects whether the banknotes inserted by the customer are legitimate banknotes, and includes detectors 12 to 16.

More specifically, the detector 12 is for detecting the width of the banknote 11, and also serves as a detector for detecting that the banknote 11 has been inserted.

The detector 13 detects that the banknote 11 is short when the banknote 11 is folded into four and inserted.

The detector 14 detects one end of the banknote 11 in the length direction, and the detector 15 detects the other end of the banknote 11 in the length direction to determine whether the length of the banknote 11 is shorter than a regular banknote. However, the detector 16 similarly detects whether the banknote 11 is long.

In addition, the two light transmission amount detectors 17L172 are connected to the banknotes 11.
When light is irradiated onto the sensor, the amount of light transmitted is detected.

The color tone detector 18 detects the color tone of the printed surface of the banknote 11,
The magnetic detector 19 detects magnetism distributed on the printed surface of the banknote 11.

The read data detected by the detectors 171, 172, 18, and 19 is provided to a pill checker (hereinafter referred to as BCR) control circuit 22.

When the detectors 12 to 19 read data on each banknote 11, the BCR control circuit 22 stores the read data in the memory 2 by DMA control regardless of program operation.
5 is stored.

A pulse signal is also given to this BCR control circuit 22 by a pulse oscillator 23 .

The pulse oscillator 23 generates a pulse signal by shaping the signal from the pulse disk in synchronization with the banknote transport speed when the banknote 11 is inserted into the pill checker 1.

Further, the output of this pulse oscillator 23 is given to the address setting circuit 3.

The address setting circuit 3 sets an address in the memory 25 based on the read data of the banknote 11 and the pulse signal given from the BCR control circuit 22, and stores the read data at the address.

The address signal 201 and read data signal 202 set by the address setting circuit 3 are transmitted to the gate circuit 2.
given to 4.

The gate circuit 24 receives a data signal 202 and an address signal 201 from the address setting circuit 3 based on a DMA control signal 203 from the BCR control circuit 22, and an address signal 205 and data given from a central processing unit (hereinafter referred to as CPU) 21, which will be described later. The signal 206 is switched.

The address signal and data signal switched by gate circuit 24 are applied to memory 25.

The memory 25 is composed of, for example, a random access memory.

This memory 25 is controlled by a control signal from a gate 26.
Write or read control is performed.

The gate 26 receives the WRITE from the BCR control circuit 22 based on the DMA control signal 203 from the BCR control circuit 22.
Command signal 207 and control signal 208 from CPU 21
Switch between.

The CPU 21 transfers data and controls each control device based on a program stored in the read-on memory 27.

Further, when the CPU 21 receives a DMA request signal from the BCR control circuit 22, the CPU 21 provides a DMA permission signal to the BCR control circuit 22.

Furthermore, a denomination and amount designator 28, a display 29, etc. are provided in connection with the CPU 21.

In operation, when a banknote 11 is inserted into a banknote insertion slot (not shown) of a banknote handling machine, the detectors 12 to 19 each detect predetermined data.

That is, the detectors 12, 12 detect whether the width of the banknote 11 is normal, and the detectors 14, 15, 16 detect whether the length of the banknote 11 is normal.

Then, when the transmission amount detector 17L172 gives each output to the BCR control circuit 22, the BCR control circuit 22
gives a DMA request signal to the CPU 21.

In response, the CPU 21 provides a DMA permission signal to the BCR control circuit 22.

Based on permission for DMA control, the BCR control circuit 22 applies a DMA control signal 203 to the gate circuit 24 and the gate 26, and switches each of them for DMA control.

Therefore, address signal 2 from address setting circuit 3
01 and the data signal 202 are applied to the memory 25 via the gate circuit 24.

Furthermore, since the WRITE command signal from the BCR control circuit 22 is applied to the memory 25 via the gate 26, writing to the memory 25 becomes possible.

On the other hand, the pulse oscillator 23 provides a pulse signal proportional to the transport speed of the banknote 11 to the BCR control circuit 22 and the address setting circuit 3.

At the same time, the BCR control circuit 22 includes a magnetic detector 19,
The read data of the color tone detector 18 and the transmission amount detector 17L172 is provided to the address setting circuit 3.

The address setting circuit 3 is set to 1, for example, by a pulse signal.
For example, reading data at 160 locations on a banknote 11 is sampled.

Furthermore, the sampled outputs are converted into digital values, and the digital values are stored in the memory 25, respectively.

In this way, as shown in FIG. 2A, the magnetic detector 1
9 reading data, color tone detector 18 reading data, transmission amount detector 171 reading data, and transmission amount detector 1
Four types of read data of 72 read data are banknotes 11
For example, 160 locations are stored in the order they are read.

Note that the figure shows sampling areas at FF (hexadecimal) locations.

After reading the read data of one banknote 11, the BCR control circuit 22 turns off the DMA control signal 203.

Then, in order to compare the read data shown in FIG. 2A stored in the memory 25 with the standard data of regular banknotes stored in other addresses of the memory 25, the CPU 21 uses a magnetic detector as shown in FIG. 2B. 19, the color tone detector 18, the transmission amount detector 171, and the transmission amount detector 172.

The classified read data and standard data are then compared to determine whether the respective data match or not, and the denomination of the banknote is determined.

In this way, in the conventional system, the detector detects the banknote 11.
Three detectors 14, 15, and 16 are required to determine whether the length is normal or not.

Furthermore, since it is only possible to determine whether the banknote 11 is long or short, the exact length of the banknote 11 cannot be determined.

Furthermore, it was necessary to temporarily store the data read by the detectors 171, 172, 18, and 19 in a memory, and to classify the data by detector as post-processing.

Therefore, there are problems in that a program for data classification processing is required, the capacity of the read-only memory must be increased, and time is required for the processing.

Therefore, the present invention has a simple structure and accurately detects the length of a banknote, without providing a dedicated detector for detecting the length of the banknote, to determine whether or not the banknote is a genuine banknote. The purpose of the present invention is to provide a method for determining the authenticity of banknotes.

Another object of the present invention (first invention) is to utilize a counting means for sequentially storing read data of a plurality of pattern detection means in a storage means as a counting means for counting the length of banknotes. An object of the present invention is to provide a method for determining authenticity of banknotes that simplifies the process.

Furthermore, another object of the present invention (second invention) is to classify a plurality of read data detected by a detector by detector from the beginning to determine whether or not the banknote is a regular banknote. The purpose is to provide a method for determining authenticity.

To summarize, the first invention includes, in response to the detection of a banknote by the banknote detection means, a pulse signal proportional to the conveyance speed of the banknote by the counting means, and a pattern of the banknote is measured based on the output of the counting means. While individually selecting read data from a plurality of pattern detection means, specifying an address of a storage means to store the selected read data, and in response to the bill detection means no longer detecting a bill, It is determined whether or not the length of the banknote is appropriate by comparing the counted value of the counting means with information on the length of the banknote stored in advance, and the read data stored in the storage means and the information stored in advance are determined. It is determined whether or not the bill bill pattern is appropriate by comparing it with a standard pattern.

In a second aspect of the invention, the counting means includes a first counting means for counting pulse signals.
and a second counting means for counting the highest output signal of the first counting means, and the first counting means selects the read data and sequentially specifies a plurality of storage areas of the storage means. The address within the specified storage area is designated by the output of the second counting means, and the read data is sequentially stored in the corresponding storage area.

The present invention will be described in more detail below with reference to embodiments shown in the drawings.

FIG. 3 is a schematic block diagram of an embodiment of the present invention.

In the figure, since this block diagram is the same as the block diagram shown in FIG. 1 except for the following points, the same parts are denoted by the same reference numerals, and the detailed explanation thereof will be omitted.

That is, the detector eliminates the need for the detectors 14, 15, 16 for reading the length of the banknote 11 shown in FIG.

The light transmission amount detectors 171 and 172 measure the amount of light transmitted through the banknote 11 when the banknote 11 is conveyed inside the pill checker 1, and detect whether or not there is a banknote 11 being conveyed based on the change in the transmission amount. is being detected.

When the light transmission amount detectors 171 and 172 no longer detect the bill 11, the BCR control circuit 22 provides a length reading signal to the address setting circuit 3 based on the sudden rise or fall of the waveform. .

Further, the pulse oscillator 23 is set to derive eight pulse signals every time the banknote 11 is conveyed by 1 vtm.

Furthermore, as shown in FIG. 2B, the memory 25 stores banknotes 1
Areas 2a and 2b are provided for storing length data of 1 mm or less and length data of one peak or more.

FIG. 4 is a block diagram of an address setting circuit to which an embodiment of the present invention is applied.

Note that this address setting circuit is used as the address setting circuit 3 shown in FIG.

The pulse signal from the pulse oscillator 23 is applied to an octal counter 31.

The octal counter 31 counts the pulse signals and provides the 3-bit count output to the temporary storage circuit 33 as data of the length of the banknotes 1101 or less.

Of the 3-bit outputs of the octal counter 31, the B and C outputs are address signals AD8. It is applied to the address gate circuit 39 as AD9.

The decoder 32 decodes the output of the octal counter 31 and applies it to the A-D inputs of the multiplexer 35.

This multiplexer 35 includes the BCR control circuit 22
The read data of magnetic data, color tone data, transmission amount data 1, and transmission amount data 2 are given from.

The multiplexer 35 selects read data as analog values based on the output of the decoder 32 and supplies the selected data to the A-D conversion circuit 36 .

The A/D conversion circuit 36 converts the read data into a digital value and supplies it to the serial/parallel conversion circuit 37 .

The serial-to-parallel conversion circuit 37 is for converting bit-serial read data into bit-parallel data, and provides the bit-parallel output to the data gate circuit 38 .

The data gate circuit 38 includes transmission amount detectors 171 and 172.
In response to the completion of detecting the length of the banknote 11 from one end to the other end in the length direction, the serial/parallel conversion circuit 37
The reading data given from the banknote 11 and the length data of the banknote 11, which will be described later, are switched.

Outputs DBO to DB7 of this data gate circuit 38 are given to the memory 25 as data signals.

Further, the C output of the most significant digit of the octal counter 31 is given to the counting input of the address counter 35.

The address counter 35 consists of two hexadecimal counters 351.
352, and by counting the C output of the octal counter 31, the output becomes length data of one or more lengths of the banknote 11, and the detector 171 of the memory 25
, 172, 18° 19 Used to specify the address of another storage area.

The outputs of the address counter 35 are sent to the temporary storage circuit 33 and the address gate circuit 34 from ADD to A.
D7DMA permission signal is received.

The temporary storage circuit 33 is composed of a register or the like, and stores the banknote 1
The length data of 1 u or less and the length data of 1 mm or more are temporarily stored, and the respective outputs are given to the length data gate circuit 34.

The length data gate circuit 34 switches the length data of less than 1101 stacks of banknotes and the length data of 1 square or more based on the output of a monostable multi-bi break 42, which will be described later, and supplies the data to the data gate circuit 38.

The length read signal is applied to a first monostable multi-bi break 40.

The first monostable multivibrator 40 derives a gate signal at a high level (hereinafter referred to as "H") for a certain period of time consisting of the falling timing of the length reading signal, that is, when the banknote 11 is no longer detected, and generates a gate signal at a high level (hereinafter referred to as "H"). It is applied to the monostable multivibrator 41.

The second monostable multivibrator 41 derives a gate signal of rHJ for a certain period from the timing when the first monostable multivibrator 40 falls to a low level (hereinafter referred to as "L").

This gate signal is used to switch between the data gate circuit 38 and the address gate circuit 39.

Furthermore, the output of the monostable multi-by break 40 is provided to a third mono-stable multi-by break 42 .

A monostable multivibrator 42 switches the length data gate circuit 34 and is applied to an adder 43.

An address setting switch 44 is connected to this adder 43 in order to store length data of lvtm or more at address "0400" of the memory 25.

Further, when the gate signal from the monostable multivibrator 42 is rLJ, the adder 43 adds 1 to the address to designate the address "0401J" for storing length data of 2501 mm or less in the memory.

The output of this adder 43 is given to an address gate circuit 39.

Also, any storage area can be set for the upper bin (ADA-ADF) of the memory 25, but if the address is set as shown in Figure 2B, all the upper 6 bits are II OII.
Therefore, the switch 45 sets it to rLl.

Based on the output of the second monostable multivibrator 41, the address gate circuit 39 determines an address for storing the read data in the memory 25 and an address for storing the length data from the adder 43 in the memory 25. Switch.

FIG. 5 is a waveform diagram for explaining the operation of an embodiment of the present invention.

Next, the operation of one embodiment of the present invention will be specifically described with reference to FIGS. 2B to 5.

When the customer inserts the banknote 11 into the banknote insertion slot, the detector 12
, 12 detect this, and the banknote 11 is sent into the pill checker 1 at a constant transport speed.

Then, the detectors 17L172, 18.degree. 19 measure the respective read data and provide it to the BCR control circuit 22.

Further, the pulse oscillator 23 generates one pulse every time the banknote 11 moves 178 mm, as shown in FIG. 5a.

First, in response to the detection of a banknote by the detector 17L172, the BCR control circuit 22 provides a DMA request signal to the CPU 21 and provides read data to the multiplexer 35.

If DMA control is possible, the CPU 21 provides a DMA permission signal shown in FIG. 5 to the BCR control circuit 22.

In response to being given the DMA permission signal, the BCR control circuit 22 sends a reset signal (fifth
Figure C) is given.

Thereby, the octal counter 31° address counter 3
5 are respectively reset (d=i in FIG. 5).

Therefore, ADO to ADF of the address gate circuit 39
The input will be logic 1-0000J.

Here, the address gate circuit 39 is connected to the address counter 3.
Since the address signal r00 is switched to the 5 side, the address signal r00
00J is given to memory 25.

Further, the decoder 32 decodes the output of the octal counter 31 and supplies it to the multiplexer 35 to select the data read by the magnetic detector 19.

The read data of the magnetic detector 19 of the analog value selected by the multiplexer 35 is converted into a bit-serial digital value by the A-reconversion circuit 36, and further converted into a bit-parallel signal by the serial-parallel conversion circuit 37, and the data The signal is applied to the gate circuit 38.

Since the data gate circuit 38 is switched to the read data side, the magnetic data is stored in the memory 25 as shown in FIG. 2B.
is stored at address 1-0000J.

On the other hand, a pulse signal from the pulse oscillator 23 is given to the BCR control circuit 22 and the address setting circuit 3.

The octal counter 31 of the address setting circuit 3 counts the first and second pulse signals, and outputs "1, OJ(
5e and f) are applied to the memory 25 via the address gate circuit 39 and the gate circuit 24 (note that these counters are shown as being triggered by the falling edge of the input waveform).

As a result, the address AD8 of the memory 25 is set to logic "1".
”, and the other addresses ADO to γ and 9 to F become logic “0”.

At the same time, the output of octal counter 31 is decoded by decoder 32 and applied to multiplexer 35 to select the next tone detector 18 read data.

The multiplexer 35 then derives the tone data and A
-D conversion circuit 36, serial/parallel conversion circuit 37 (Fig. 5C),
The data is stored at address "0100" of the memory 25 via the data gate circuit 38 and gate circuit 24.

Similarly, when the 3.4th pulse signal is given, the address becomes "0200" and the transmission amount data 1 (
4 p) is stored in the memory 25 at address 0200J.

5. When the 6th pulse signal is given, the address is r
At 0300, the transmission amount data 2 (FIG. 4q) is stored in the memory 25.

Further, when the 7.8th pulse signal is applied, the least significant bit of the address counter 351 becomes high level, so the address becomes "0O01" and the second magnetic data is stored in the memory 25.

Similarly, the second color tone data is stored at the address "0101" of the memory 25, and the second color tone data is stored at the address "020" of the memory 25.
1", the second transmission amount data 1 is stored, and the address JO301J stores transmission amount data 2.

In this way, by specifying the address of the memory 25, the read data is stored by category as shown in FIG. 2B.

When the reading data of the banknote 11 is stored in the memory 25, when the transmission amount detectors 171 and 172 no longer detect the banknote 11, the length reading signal becomes "L" (Fig. 5r).
Falling down.

In FIG. 5, when the length read signal falls to rLJ, each read data is shown to be being sampled for the 160th (AO in hexadecimal).

When the length reading signal falls to "L", the temporary memory circuit 33 is attached, and the output of the octal counter 31 correlated with the length data of 1 mm or less of the banknote 11 and 17nr/
The output of the address counter 35 that correlates with length data of L or more is stored in the temporary storage circuit 33.

Furthermore, based on the fact that the length read signal falls to "L", the first monostable multivibrator 40 outputs the rHJ gate signal (FIG. 5S) for a certain period of time.

While the output of this monostable multivibrator 40 is rHJ, each gate circuit 38 and 39 is connected so as to continue outputting read data.

This includes transmission amount detectors 171, 172, etc. and magnetic detector 1.
This is to ensure that there is no misalignment between the banknotes and the banknotes 9 in the transport direction.

That is, in this embodiment, the transmission amount detector 171,
Since each reading data is sampled while the magnetic detector 172 is detecting a banknote, the reading data of the magnetic detector 19 read in the first few samplings is meaningless, and on the contrary, the amount of transmitted data is Even after the detectors 171 and 172 no longer detect banknotes, the monostable multivibrator 40 is used to continue reading the magnetic detector 19 for a while (two samplings are shown in the figure, of course this can be set arbitrarily). (In other words, the monostable multivibrator 41 is triggered only when the output of the monostable multivibrator 40 falls).

During this time, the read data of the transmission amount detectors 171, 172 and the color tone detector 18 are meaningless.

After a certain period of time, when the gate signal of the monostable multivibrator 40 falls to rLJ, the monostable multivibrator 41
and 42 each output a gate signal (t, u in FIG. 5) of rHJ for a certain period of time.

The gate signal rHJ of the monostable multivibrator 41 is applied to the data gate circuit 38 and the address gate circuit 39, and during this period both gates are switched to the length data side.

Also, the gate t' signal rH of the monostable multivibrator 42
J is given to the adder 40, and during this time the adder 40 outputs the setting output of the switch 44 as it is, and in order to store the length data of 1 or more minutes in the memory 25, the address JO400J set by the switch 44 is It is applied to the memory 25 via the address gate circuit 39 and the gate circuit 24.

Then, the data gate circuit 38 is switched to the length data side, and further, the length data gate circuit 34 is switched to Lmrt by the gate signal rHJ of the monostable multivibrator 42.
Since it has been switched to the length data side of t or more, the length data of 1 mm or more stored in the temporary storage circuit 33 is stored in the length data gate circuit 34, data gate circuit 38,
The signal is applied to the memory 25 via the gate circuit 24.

Therefore, length data of 17/LrIL or more of the banknote 11 is stored at the address [0400j of the memory 25.

Furthermore, at the same time as the monostable multivibrator 41, rHJ
After a certain period of time, the gate signal of the third monostable multivibrator 42 falls to "L".

Thereby, the adder 43 increases the address r0400 by +1
Then, address l-0401J for storing length data of 1 mm or less in the memory 25 is set.

In addition, the gate signal “L” of the monostable multibiflator 42 is
” switches the data gate circuit 34 to the length data side of one fight or less.

Then, at the address "0401J" of the memory 25, data of the length of the banknote 11 of one length or less is stored.

Thereafter, the BCR control circuit 22 no longer derives the DMA control signal, and the CPU 21 compares the read data with the standard data stored in the memory 25 according to classification, and determines whether or not the banknote inserted by the customer is a regular banknote. Perform false discrimination.

Furthermore, the CPU 21 uses addresses 1-040 of the memory 25.
0J and r0401. It is checked whether the banknote length data stored in J is within a predetermined range.

This is done by determining the length depending on the type of banknote, such as 160 mm to 166 mm for a 1,000 yen bill (of course, it is also possible to strictly inspect lengths of mm or less) based on the inspection of the banknote pattern. Alternatively, all banknotes may be determined at once to be within a predetermined length range.

In addition, as mentioned above, the position where the magnetic detector 19 is arranged, the transmitted amount detectors 171, 172, and the color tone detector 18
The transmission amount detectors 1γ1 and 1γ2 are shifted from the position where the banknotes 11 are placed in the transport direction of the banknotes 11.
Immediately after detecting the magnetic field, the magnetic detector 19 measures unnecessary data and includes meaningless read data. However, by invalidating the meaningless data when reading from the memory 25, the read data becomes inconvenient. data is not included in the comparison.

In the above embodiment, the length read signal was applied to the monostable multivibrator to generate the gate signal, and the read data and length data were switched, as well as the respective address signals were switched. A gate signal for switching may be generated by counting pulse signals proportional to the transport speed using a counter or the like.

In this way, only one counter is required, and the number of sampling times after the permeation amount detectors 171 and 172 no longer detect banknotes can be kept constant regardless of the banknote transport speed (monostable vibrator 4
At 0, the number of sampling times changes slightly depending on the conveyance speed of the banknote).

In addition, in the above-described embodiment, when measuring the amount of light transmitted through the printing surface of a banknote, the level fluctuation of light transmission "M" due to the presence or absence of a banknote is greater than the level fluctuation of the amount of light transmission due to the brightness of the printed surface. Taking advantage of the fact that it is much larger, the transmission amount detector 17
1.172 is used not only as a pattern detection means for reading banknote patterns, but also as a banknote detection means that detects the presence of banknotes by determining when the received light level reaches a predetermined level. Further, another bill detection means may be provided near the permeation amount detectors 171 and 172, and the reading data may be sampled and the bill length may be counted by the bill detection by this detection means.

Further, while the detector 13 is detecting the banknote, the length of the banknote is counted and the read data is sampled (in this case, the first few samplings are meaningless data reading). Alternatively, sampling of the read data may be started after a predetermined period of time has elapsed since the detector 13 detects the presence of the banknote (it is even better if the time corresponds to the transport speed of the banknote). good.

Further, in the above-described embodiment, the length data of the banknote is temporarily stored in the temporary storage circuit 33 by the length reading signal, but this is done by, for example, inhibiting the counter 31 from incrementing by the length reading signal. Alternatively, the values of the counters 31 and 35 may be directly read as length data.

As described above, according to the first invention, the counting means (counter) for sequentially storing each read data of the plurality of pattern detecting means (detectors 171, 172, 18° 19) in the storage means (memory 25) is used. 31, 35) are used to determine the length of banknotes, the authority becomes simple.

According to the second invention, the storage area is specified by the first counting means (counter 31) among the above-mentioned counting means,
The second counting means (counter 35) specifies the address within the storage area, and the highest output signal of the first counting means is used as the input signal of the second counting means, so the read data is stored in the memory. At the same time, it is possible to classify and store each read data, which simplifies the determination of standard data and other processing, and also simplifies programming and shortens processing time.

Therefore, the present invention can be effectively used as an authenticity determination method when there is a large amount of input data and a plurality of detectors, such as when determining the authenticity of banknotes using a pill checker.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a money handling machine which is the background of this invention. FIG. 2A is a diagram for explaining a state in which data read from a conventional detector is stored in memory. FIG. 2B is a diagram for explaining a state in which read data is classified by detector and stored in memory. FIG. 3 is a schematic block diagram of one embodiment of the present invention. FIG. 4 is a block diagram of an address gate circuit to which an embodiment of the present invention is applied. FIG. 5 is a waveform diagram for explaining one embodiment of the present invention. In the figure, 1 is a pill checker, 11 is a banknote, 171.
172 is a light transmission amount detector, 18 is a color tone detector, 19 is a magnetic detector, 21 is a central processing unit, 22 is a pill checker control circuit, 23 is a pulse oscillator, 24 is a gate circuit, 2
5 is a memory, 26 is a gate, 3 is an address setting circuit, 3
1 is an octal counter, 32 is a decoder, 33 is a temporary storage circuit, 34 is a length data gate circuit, 35 is a multiplexer, 36 is an A-D conversion circuit, 37 is a serial/parallel conversion circuit, 3
8 is a data gate circuit, 39 is an address gate circuit, 4
0, 41 and 42 are monostable multivibrators, 43 is an adder, and 44 and 45 are switches.

Claims (1)

[Claims] 1. Inspecting at least the length and pattern of the banknote,
A banknote authenticity determination method for determining whether or not the banknote is a proper banknote, the system comprising: a banknote detection means for detecting the presence of a banknote; a plurality of pattern detection means for measuring patterns on the banknote; and transport of the banknote. A pulse signal generating means for generating a pulse signal proportional to the speed, a counting means for counting the pulse signals from the pulse signal generating means, and a storage means for storing read data of each of the plurality of pattern detecting means. , causing the counting means to count the pulse signals in response to the bill detection means detecting a bill, and individually selecting data read by the plurality of pattern detection means based on the counted value of the counting means. At the same time, specifying an address of the storage means to store the selected read data in the storage means; It is determined whether or not the length of the banknote is appropriate by comparing the information regarding the length of the banknote stored in advance, and the read data stored in the storage means is compared with the standard information stored in advance. A method for determining authenticity of banknotes, characterized in that it is determined whether or not a pattern of a banknote is appropriate by comparing the pattern with a pattern of the banknote. 2. The plurality of pattern detection means includes at least a pattern detection means for measuring the amount of light transmitted, and the pattern detection means for measuring the amount of light transmitted is also used as the banknote detection means. The banknote authenticity determination method described in scope 1. 3. A banknote authenticity determination system that determines whether or not a banknote is a proper banknote by inspecting at least the length and pattern of the banknote, comprising a banknote detection means for detecting the presence of a banknote; a plurality of pattern detection means for measuring patterns; a pulse signal generation means for generating a pulse signal proportional to the conveyance speed of the banknote; a first counting means for counting pulse signals from the pulse signal generation means; a second counting means for counting the highest output signal of the first counting means; and a storage means having a number of storage areas corresponding to the number of the pattern detection means, and the banknote detection means detects a banknote. causing the first counting means to count the pulse signals in response to the fact that the pulse signal is present, and sequentially selecting data read by the plurality of pattern detection means based on the counted value of the first counting means;
Sequentially specifying a plurality of storage areas of the storage means, specifying addresses within the specified storage areas by the output of the second counting means, and sequentially storing the selected storage data in the respective corresponding storage areas. and, in response to the fact that the banknote detection means no longer detects a banknote, the length of the banknote is determined by comparing at least the counted value of the second counting means with information regarding the length of the banknote stored in advance. and determining whether the pattern of the banknote is appropriate by comparing the read data stored in the storage means with a standard pattern stored in advance. A method for determining authenticity of banknotes. 4. The plurality of pattern detection means includes at least a pattern detection means for measuring the amount of light transmitted, and the pattern detection means for measuring the amount of light transmitted is also used as the banknote detection means. The banknote authenticity determination method described in scope 3.