JPH0132461B2 - - Google Patents

Description

[Detailed Description of the Invention] [Summary] Development of a paper sheet validating machine that collects data on paper sheets including banknotes and performs various processes in developing a validating machine for the paper sheets. The system checks the validity of the collected data, generates sample data, uses the sample data to perform a simulation that applies the recognition logic corresponding to the discrimination machine to be tested, and develops the discrimination machine to be tested. It is disclosed that the paper sheet itself has a function of monitoring data from an operating discriminator, and changes in the data of the paper sheet itself can be monitored.

[Industrial application field]

The present invention relates to a paper sheet classification machine development system, particularly,
Using sample data, we perform a simulation to apply the recognition logic corresponding to the identification machine to be tested, thereby contributing to the development of the identification machine to be tested, and then collect data from the identification machine in operation. The present invention relates to a system for developing a paper sheet identification machine that is capable of monitoring changes in the data of paper sheets that are currently in circulation.

[Conventional technology]

Conventionally, recognition machines for paper sheets including banknotes have been developed. However, in the case of conventional technology, a large amount of data similar to that used by the classification machine under development is collected from the paper sheets to be classified, and the classification machine under development I was trying to find out how accurately I could identify paper sheets. In other words, by setting in advance a so-called preferable discrimination mode, and more specifically, by setting the sensor position in advance at a preferable position, it is possible to determine how accurately the discrimination mode in such a discrimination machine can perform discrimination. Many methods were used to find out.

[Problem that the invention is trying to solve]

In the conventional case described above, it has not been possible to develop a discriminator of the desired form from a comprehensive standpoint. For example, in a paper identification machine that discriminates paper sheets, it is necessary to evaluate which position on the paper sheet is best for the sensor to sense.
This was extremely difficult and virtually impossible because no data was collected when the sensor position was changed.

For this reason, it has been considered to manufacture a development system for a paper sheet discriminator as described below, but the following new problems arise. In other words, data on paper sheets may change due to subtle changes in the ink composition of banknotes that are currently in circulation. It is necessary to understand this and deal with it in subsequent development.

[Means for solving problems]

The present invention provides a paper sheet discriminator development system that solves the above-mentioned problems, and FIG. 1 shows the basic configuration diagram of the present invention. Code 5 in the diagram
1 is a banknote validating machine, P ₁ to P ₇ are data collection sensors, S ₁ to S ₄ are banknote entry and passage detection sensors, 101 and 102 are preamplifiers, and 103
is a multiplexer, 104 is an A/D converter,
105 is a comparator, 106 is a register, 10
7 is the bus, 108 is the processor, 109 is
RAM, 110 is ROM, 111 is register, 1
12 represents a data transmission register.

In the validation machine 5 currently in operation in the field, when a banknote is set in a banknote insertion slot (not shown), the insertion of the banknote is detected by sensors S ₁ , S ₂ , S ₃ , and S ₄ . The banknotes are transported by a transport device (not shown), while sensors P ₁ to P ₇ sense data from the banknotes. The processor 108 determines the validity of the inserted banknote based on a dictionary held in the RAM 109 or the like. The illustrated register 112 is provided in the present invention, and constitutes a data transmission section according to the present invention.

[Effect]

The identification machine 5 currently in operation in the field is
A sensor detects the banknotes set in the banknote insertion slot.
Data is collected through P ₁ to P ₇ to identify the validity and denomination of the banknote. The data collected at this time, the characteristics obtained based on the data,
The discrimination results and the like are temporarily held in the RAM 109 and transferred to the data editing device via the data transmission register 112, for example, by wireless transmission.

The data editing device is the location where the data has been transmitted.
Transfer information about banknotes in circulation to a database. Based on this information, the data processing device in the paper sheet validator development system monitors changes in the data of the banknotes themselves in circulation.

〔Example〕

FIG. 2 shows the configuration of an embodiment of the paper sheet discriminator development system of the present invention.

In the figure, reference numeral 1 is a data processing device, 2 is a bill data collector, 3 is a data editing device, 4 is a floppy disk that holds edited information and supplies it to the data processing device 1, and 5 represents a banknote validating machine that is being tested.

The banknote data collector 2 sets m×n grid areas on both the front and back sides of the banknote, and collects data for each grid area, such as color, amount of light reflection by color, amount of light transmission by color, etc. Collect. Furthermore, paper sheets are set so that data can be collected for each square area. The data editing device 3 adds additional data such as the denomination, setting direction, environmental conditions at the time of data collection, and banknote manufacturing lot number to the collected data, and writes the data onto the floppy disk 4.

The data processing device 1 is a floppy disk 4
It has the function of reading the contents of the data into the database 6 and performing the following processing. That is, 1) Conveyance state evaluation unit 7: When a banknote is set in the banknote data collector and data about the banknote is collected, whether or not the banknote conveyance speed is extremely abnormal; Check the degree of skew during conveyance.

2) Data base information evaluation unit 8...data base
Regarding the information group collected on the base 6, (i) For example, whether there are an extremely large number of banknotes of a particular denomination, or whether the data collected under a particular set state when banknotes are set is extremely (ii) Check the input data acquisition conditions, such as whether there are too many input data, and (ii) check the data acquisition conditions, such as when a 10,000 yen bill was set but it was mistakenly assumed that a 1,000 yen bill was set at the time of data collection. The reliability of the information population on the database 6 is evaluated by checking for abnormalities, checking for undesired deviations in the collected data and data abnormalities.

3) Banknote side data change monitoring unit 9...Although it cannot be detected by the human eye, the type of ink on banknotes is sometimes changed. For this,
It is necessary to constantly monitor the presence or absence of such changes and to ensure that the discrimination function of the discrimination machine correctly follows the changes. Try to change it to something more favorable.

4) Specimen data creation section 10: Creates a preferred number of specimen data from the collected information that can accommodate sensor variations in the discrimination machine to be tested, and supplies it to the recognition logic section 12, which will be described later.

5) Discrimination data synthesis unit 11...When collecting data by the banknote data collector 2, it is extremely complicated to collect a large amount of data when, for example, a banknote is skewed at a predetermined angle. It is. For this reason, it is desirable to synthesize data obtained when the vehicle is skewed at the predetermined angle from a group of data collected without skew. In addition, there may be times when you want to perform a test such as changing the placement position of the sensor in the banknote validator, and it is practically impossible to change the sensor position of the data collector 2 and collect data again. Can not. For this reason, it is desirable to appropriately synthesize data obtained when the sensor position is changed from the data on the data base 6. The discrimination data synthesis section 11 has such a function.

6) Recognition logic unit 12: When developing a banknote validator, it is necessary to test the degree of recognition function that the banknote validator has. For this,
Regarding the data collected by data collector 2,
It is necessary to apply and investigate the preferred form of epistemic logic. It is also necessary to apply recognition logic to examine the data created in the sample data creation section 10. The recognition logic unit 12 has a function for this purpose.

7) Discrimination sensor evaluation unit 13: evaluates what kind of sensor is more preferable as a sensor to be used in the test object discrimination machine.

The data processing device 1 has the above-mentioned processing functions, but as shown in the figure, (i) the database internal information evaluation section 8 has the input data acquisition condition checking section 8-
1, data abnormality check section 8-2, etc.
(ii) The discrimination data synthesis unit 11 includes a data synthesis unit 11-1 for sensor position movement, a data synthesis unit 11-2 for skew movement, etc., and (iii) the recognition logic unit 12 performs discrimination processing based on distance. It has a processing section 12-1, a processing section 12-2 based on intra-group division, and the like.

The illustrated banknote validating machine 5 is a valid validating machine to be tested,
This corresponds to the discriminating machines that are actually in use and in operation, and information from these discriminating machines 5 is guided to the data processing device 1 via the data editing device 3 as necessary.

Data is collected from the banknote data collector 2 for each denomination of banknotes by changing the set state of the banknotes, passes through a data editing device 3, and is held on a floppy disk 4. At this time, by changing the above-mentioned set state, data such as color is collected for each square area where the entire surface of the front and back of the banknote is divided into m x n square areas. be made to be

The data held on the floppy disk 4 is stored on the database 6, and the validity of the collected data is evaluated by the conveyance condition evaluation section 7 and the database information evaluation section 8. . Then, the sample data creation section 10 generates the data.
Sample data is created in a desired form from the contents of the base 6. Also, by the discrimination data synthesis unit 11,
Data for the case where the sensor position is moved are synthesized, and the synthesized data is used as necessary.

The recognition logic unit 12 performs predetermined recognition logic,
Perform various tests. Also, the discrimination sensor evaluation section 13
performs evaluations such as selecting preferred types of sensors.

FIG. 3 shows the configuration of an embodiment of the banknote data collector, in which FIG. 3A is a side view, FIG. 3B is a plan view, and FIG.
Figure C shows a configuration diagram of the roller. Reference numeral 14 in the figure is a feeding section, which supplies the banknote 18 to the data collection section 15 when the banknote 18 is inserted. The data collection unit 15 includes a roller 19 as shown in FIGS. 3B and 3C.
is generated, and the banknote 18' is conveyed on the conveyance path 20 as shown by the arrow. The conveyance path 20 is shown in FIG. 3B.
As shown, it has a width that is sufficiently large compared to the distance in the longitudinal direction of the banknote 18'. On the conveyance path 20, banknote entry detection sensors S ₁ and S ₂ 21 and a passage detection sensor 22 are provided, and a data collection sensor 23 is arranged symmetrically with respect to the vertical center line shown in FIG. 3B. ing. A track detection sensor 24 is also provided as shown.

As described above, since the width of the conveyance path 20 is sufficiently large compared to the longitudinal length of the banknote 18', the upper end of the banknote 18' is at the upper end of the conveyance path 20 shown in FIG. 3B. The banknotes 18' can be placed in any desired position, from a state in which the banknotes 18' are set and transported so that they touch each other, to a state in which the banknotes 18' are set and transported in such a way that the lower end of the banknotes 18' touches the lower end of the transport path 20 shown in FIG. It is possible to set Corresponding to these set positions, which position on the banknote 18' is sensed by the data collection sensor 23 is determined.

As shown in FIG. 4, the top of the banknote 18' is divided into m×n grid areas 25, and the _grid areas arranged in the horizontal direction as shown in _FIG . If the grid area groups arranged in the vertical direction shown in FIG. 4 are defined as zones Z ₁ , Z ₂ , Z ₃ . While the 18' is being conveyed, the data collection sensor 23 collects data on the grid areas on the upper and lower tracks. And banknote 18'
By changing the position at which the banknotes are set on the conveyance path 20, it is possible to collect data for each of the square areas 25 within a predetermined range on the banknote 18'. In addition, the data in the hatched square area 25 in FIG.
3 is extracted at the transport timing corresponding to zone Z ₂ while collecting data along track T _{i +1} . At this time, which track the sensor 23 corresponds to can be determined by which position of the track detection sensor 24 the end of the banknote 18' passes through.

The banknotes that have been conveyed through the data collection section 15 are stored in the illustrated storage section 16 as shown in the illustrated discriminator 18''.The data collected during the above conveyance is then sent from the control section 17 to the illustrated discriminator 18''. The data is transferred to the data editing device 3 of.

Transmission data from the operating discriminator 5 as shown in FIG. 1 is also transmitted to the data editing device 3,
It is stored on the above-mentioned database 6 shown in FIG.

FIG. 5 shows an explanatory diagram illustrating the concept of processing in the data change monitoring section 9 according to the present invention. The data change monitoring section corresponds to the banknote side data change monitoring section 9 shown in FIG.

In the "distance calculation" shown in _{FIG .} eye area data
Based on Z _pq , calculate the distance X shown. That is, the distribution center Z' _pq is determined based on the grid area data ' _pq collected up to a certain predetermined time. Then, the distance between the distribution center and each square area data Z _pq collected by the operating discrimination machine is accumulated based on the square area on each track and each sensor P ₁ to P ₇ . Then, the distance X from the conventional distribution center for each banknote inserted into the validating machine is determined.

Next, in the illustrated "frequency count", the frequency for each distance X is counted, and a histogram as illustrated is created. The histogram as shown in the figure is configured to be visible on a display or the like, and by monitoring the histogram as appropriate, it is possible to know changes in data on the banknote side. Of course, the change may be notified automatically. In addition, in the illustrated histogram, the solid line represents the square area data collected by the above specified time.
The histogram for Z′ _pq is shown, and the dotted line shows the histogram for the square area data Z _pq .

[Effects of the Invention] As explained above, according to the present invention, it is possible to collect data from a classification machine operating in the field, and to understand and deal with changes in data on paper sheets in circulation. becomes possible.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the principle configuration of the present invention, Fig. 2 is a configuration of an embodiment of the paper sheet validating machine development system of the present invention, Fig. 3 is an example of the configuration of a bill data collector, and Fig. 4 is a diagram of bill data collection. FIG. 5 is an explanatory diagram for explaining the collection, and FIG. 5 is an explanatory diagram for explaining the concept of processing in the data change monitoring section. In the figure, 1 is a data processing device, 2 is a bill data collector, 3 is a data editing device, 4 is a floppy disk, 6 is a data base, 8 is an information evaluation unit in the database, and 9 is a bill side data change monitoring department,
10 represents a sample data creation section, 11 represents a discrimination data synthesis section, and 12 represents a recognition logic section.

Claims (1)

[Scope of Claims] 1. A data collector 2 that reads information about set paper sheets 18 including banknotes using a plurality of sensors; A data editing device 3 that adds additional data related to the data editing device 3, a database 6 that holds information edited by the data editing device 3, and an information processing function unit that processes the information in the database 6. In the paper sheet validator development system having at least the following: a data processing device 1 equipped with the above, the information processing function section at least evaluates the validity of the collection state of the data collected by the data collector 2; a conveyance state evaluation section 7 that performs checks on the data collected by the data collector 2, a data base information evaluation section 8 that performs checks on the data collected by the data collector 2, including checking for data acquisition conditions and checking for abnormal data inclusion; and data change monitoring. part 9, and the sample data obtained based on the results checked by the database information evaluation part is used as data to be collected by the test object discrimination machine, and the discrimination simulation by the test object discrimination machine is performed. and a discrimination sensor evaluation section that obtains evaluation information about the sensor of the test object classification machine based on the simulation result by the recognition logic section, and also performs the discrimination processing on the paper sheets. The operating discrimination machine 5 transfers data read by the sensor for the discrimination and/or information on the discrimination results while performing the discrimination process to the data editing device 3. Data transmission section 112
Based on the data and/or information from the operating discriminator 5, the data change monitoring section 9 detects paper sheets set in the operating discriminator 5. The characteristics of the data itself should be collected, and when changes occur in the collected data, the above data/
A paper sheet identification machine development system characterized by updating the contents of base 6.