JPH0797425B2 - Coin inspection method in coin sorter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a coin inspection method method in a coin sorting device for discriminating the appropriateness based on the degree of influence of an inspection coin on an oscillating magnetic field.

(B) Conventional technology Generally, such a coin sorting device brings an inspection coin closer to a sensor that forms an oscillating magnetic field, and captures the degree of influence on the sensor caused by the change in inductance, frequency, phase, induced voltage, etc. It measures the characteristics of coins. And as a conventional coin sorting device, Japanese Patent Publication No. 52-62
There is a configuration disclosed in Japanese Patent Publication No. 00, in which two types of sensors are provided, one for inspection and one for reference, a true coin is placed in advance for reference, and when the inspection coin passes through the sensor for inspection, both The suitability of this coin is determined by comparing the measurement results. Further, as a reference setting, there is also a configuration shown in Japanese Patent Publication No. 48-799, for example, in which a variable resistor or a variable capacitor is used so as to be the same as the electrical condition of the reference coin.

However, recently, as disclosed in Japanese Patent Laid-Open No. 49-95692, due to the downsizing of the device and the ease of setting the standard,
Instead of such reference coins and standard setting parts, set the coin determination data for determining the appropriate coins using the semiconductor memory, and when the coin data by the inspection coins is obtained, both data will match within the allowable range. If there is an inspection coin, a method of determining that the coin is appropriate is being adopted. This allowable range should be increased when discriminating coins with significantly different characteristics, but if the characteristics are very similar depending on the type of coin, or if delicate counterfeit coins are inserted. There is no choice but to set the allowable range narrow. In this case, the frequency, voltage, and temperature of the oscillating magnetic field and the influence of external changes of various electric elements in the sensor circuit as well as the circuit, element, and mechanism so that the relative positional relationship between the inspection coin and the sensor are always constant. Each device must be devised to make the device complicated. Therefore, JP-A-48-
Japanese Patent No. 29499 discloses an apparatus in which a circuit or a mechanism for preventing a change over time is omitted by canceling the influence of the fluctuation by adjusting the fluctuation of the inspection condition from the measured value of the coin. However, the technique according to this publication is premised on that the variation of the measured value due to the change over time always changes at the same rate. However, in this type of coin sorting device, it is known that the measured value changes exponentially with respect to the fluctuation of the measurement condition, and according to the above-mentioned conventional technique, the fluctuation of the measurement condition can be dealt with only within a narrow range. .

Therefore, in Japanese Patent Laid-Open No. 56-110196, the rate of change in the measurement conditions is calculated from the measured value of the sensor during standby, the value of the rate of change is multiplied by a correction coefficient to obtain the correction value, and the sensor There is disclosed a coin sorting device configured to sense an inspection coin and output a measured value, and correct the measured value with a correction value to cancel the influence of fluctuation. According to such a conventional technique, by setting the correction coefficient in anticipation of the change in the measured value when the measurement condition changes, it is possible to correct the measured value close to the actual value.

(C) Problems to be Solved by the Invention However, in the conventional methods of coping with changes over time, even if there is a difference in accuracy in the correction calculation method in order to correct the measured value, The corrected measured values are not actual ones, but only predictions. However, since there are many factors that change with time and various factors are intricately entangled with each other depending on the external environment, there is a limit in correcting the measured value with a certain function.

Therefore, the present invention does not correct the measured value but sets the acceptance range according to the occasion, and determines the appropriateness of the inspection coin based on the actual measured value. Therefore, the coin determination data, which is the reference of the acceptance range, is corrected by this measurement value every time a proper measurement value is obtained with a genuine coin, in preparation for the next inspection. Then, it is intended to provide a receiving range setting method for fixing the coin determination data by the operation of the changeover switch when the coin sorting device is rewritten to proper coin determination data by long-term use and the setting becomes stable.

(D) Means for Solving the Problem In order to solve the above problems, the coin inspection method in the coin sorting device according to the present invention forms an oscillating magnetic field, and determines the degree of influence of the inspection coin on the magnetic field. While detecting the coin data by measuring, comparing the coin data and the coin determination data, in the coin sorting device to determine that the inspection coin is appropriate when both data match within the allowable range, If a second range included in the permissible range is set and the coin data obtained by the inspection coin is within the second range, the coin determination data is corrected based on the coin data. The switching means is provided, and when the switching means is in operation, the correction of the coin determination data by the inspection coin is stopped.

(E) Operation When the coin data of the inspection coin is obtained, the coin data is compared with the coin determination data, and if they match within the allowable range, the inspection coin is determined to be proper. If the coin data also satisfies the second range, which is narrower than the permissible range, this coin is used as the genuine coin with less wear and dirt and is used for correcting the coin determination data. As a result, the coin determination data is corrected to an appropriate value according to changes over time and changes in drift, etc., in preparation for the next coin inspection. Then, the operation of the switching means stops the correction of the coin determination data and fixes it.

(F) Example FIG. 1 shows a coin sorting device (1) to which the present invention is applied, in which the inspection coins inserted into the coin slot (2) are rolled on the coin rail (6). Sensors (3), (4),
According to (5), the respective characteristics of the material, plate thickness and diameter are measured. The sensors (3), (4), and (5) form an oscillating magnetic field, and grasp the degree of influence on the oscillating magnetic field due to the passage of the inspection coin by changing the frequency, voltage, phase, etc.
It measures each characteristic of the inspection coin. Which characteristics of the inspection coins the sensors (3), (4) and (5) measure is determined by the oscillation frequency, the coil shape,
Furthermore, it is known that it depends on the mounting position of the sensor. In this example, the sensor (3) is, for example, 3 KHz.
The oscillation coil is connected to the oscillator (7) that oscillates at a relatively low frequency as described above. Since the magnetic flux induced by such oscillation frequency penetrates into the coin, the degree of influence of the inspection coin on the oscillation magnetic field depends on its material, and the maximum frequency when the inspection coin passes through the sensor (3). By measuring with a measuring device (10), coin data about the material can be obtained. Sensors (4) and (5) are, for example, 1MHz
An oscillator (8) that oscillates at a relatively high frequency, such as
Each oscillating coil is connected to (9), and the magnetic flux induced by such oscillating frequency penetrates only to the vicinity of the surface of the coin. Therefore, if the sensor (4) is connected to the oscillator (8) with a pair of oscillation coils connected in series and in reverse phase, and the inspection coin is passed between the coils, the influence of the passage on the oscillation magnetic field is reduced. It depends on the respective distances from both coils to the coin, and this degree of influence indicates the plate thickness of the inspection coin. Therefore, by measuring the maximum frequency when the inspection coin passes through the sensor (4) with the measuring device (11), the coin data regarding the plate thickness can be obtained. The sensor (5) is a single oscillator coil,
If the sensor diameter is made larger than the coin and it is arranged with a small clearance from the coin rail (6) and the area facing the inspection coin is set to differ depending on its outer diameter,
The degree of influence of the inspection coin on the oscillating magnetic field depends on the outer diameter of the inspection coin. Therefore, the coin data about the diameter can be obtained by measuring the maximum frequency when the inspection coin passes through the sensor (5) by the measuring device (12).

The data processing device (13) includes measuring devices (10), (11),
When each coin data is introduced from (12), memory (14)
The coin determination data is read from and compared with each other, and if both data match within the allowable range, the inspection coin is determined to be proper. The memory (14) stores 15 types of reference data as coin judgment data corresponding to the coin types A, B, C, D and E to be selected for each characteristic of material, plate thickness and diameter. ,
When the coin data is introduced from the measuring device (10), the data processing device (13) reads out the coin judgment data regarding the material for each coin type from the memory (14) and compares them.
If any coin determination data matches within the allowable range, it is determined in the material inspection that the inspected coin is the type of coin associated with the matched coin data. Further, when the coin data is introduced from the measuring device (11), the data processing device (13) reads out the coin judgment data regarding the plate thickness of each coin type from the memory (14) and compares the coin judgment data with any coin judgment. When the coins match with the data within the allowable range, it is determined that the coin is the type of the coin data. Similarly, when the coin data is introduced from the measuring device (12), the coin judgment data regarding the diameter is obtained. Make a comparison of. The inspection coin thus inserted from the coin insertion slot (2) rolls on the coin rail (6) and each sensor (3), (4),
While passing through (5), the data processing device (13) performs each of the comparison operations described above, and it is shown that the discrimination results of the material, plate thickness, and diameter are all coins of the same type. Open the coin gate (16) with proper inspection coins. As a result, the inspection coin that has finished rolling of the coin rail (6) is received in the device. However, if different results are obtained in each determination, or if there is at least one inconsistency between the coin data and the coin determination data, the data processing device (13) determines the inspection coin as a false coin. At this time, the data processing device (13) holds the coin gate (16) in a closed state, so that the coin rolled on the coin rail (6) is returned.

Explaining the above comparison operation with reference to FIG. 2, AS ₁₁ is coin determination data for determining whether the inspection coin is a type A coin in the material inspection, and is stored in the memory (14) as described above. , A ₁₁ is data indicating an allowable upper limit value when comparing the coin data and the coin determination data, and this data is set in the program of the data processing device (13). Therefore, the data processing device (13) is
When coin data is introduced from (0), memory (14)
More coin judgment data AS ₁₁ is read out and compared, and the coins to be inspected are determined depending on whether the coin data is within the range of a ₁₁ above and below with respect to AS ₁₁ , that is, the coin data is within the acceptance range AS _{15 to} AS ₁₄ . In the material inspection, it is determined whether it is a type A coin. In the present invention, when an inspection coin is inserted and the coin data obtained by this coin satisfies a certain standard,
It is characterized in that the coin determination data is corrected by this coin data. As this criterion, the second range narrower than the allowable range which is the width of the acceptance range is set, and when the coin data is included in this second range, in preparation for the next inspection coin, The coin determination data is corrected with the coin data. The fact that the coin data satisfies the second range, which is narrower than the allowable range, means that this inspection coin is a genuine coin with less wear and dirt, and the coin determination data should be corrected with the coin data obtained by such coin. Thus, it is possible to effectively deal with the change over time of the coin sorting device. The data processing device (13) uses the data a ₁₁ to define this second range.
It also programs data a _{12 with} much smaller values.
The data processor (13) has data for defining the allowable range for coin types A, B, C, D, E for each characteristic of material, plate thickness, and outer diameter ( A ₁₁ ) and the data defining the second range (a ₁₂ described above for the material of A type coins) are programmed respectively. Therefore, as shown in FIG. 4, the inspection coin is the sensor (3).
When the coin data SD ₁ is obtained in the measuring device (10) after passing through, the data processing device (13) outputs the data SD ₁ (A ~
D) S ₁₄ to (A to D) It is determined whether the inspection coin belongs to any of A to D depending on which one of the allowable ranges from S ₁₅ to S15, and the second coin corresponding to the acceptance range to which it belongs. Depending on whether the coin belongs to the range (A to D) S ₁₂ to (A to D) S ₁₃ , the coin data SD _{1 is used} to determine whether to correct the coin determination data that serves as the reference of the receiving range. That is, the coin data SD ₁ is the acceptance range AS _{14 to} AS ₁₅ and the second range AS _{12 to} AS.
_When all ₁₃ are satisfied, the coin determination data AS ₁₁ is corrected by the coin data SD ₁ . Further, when the inspection coin passes through the sensor (4) and the coin data SD ₂ is obtained in the measuring device (11), it is in any of the receiving ranges from (A to D) S ₂₄ to (A to D) S _25. The type of inspection coin is determined depending on whether it belongs, and the second range (A to D) S corresponding to the acceptance range to which it belongs
₂₂ ~ (A ~ D) coin data SD ₂ depending on whether it belongs to S ₂₃
Determines whether to correct the coin determination data which is the reference of this allowable range. Similarly, when the inspection coin passes through the sensor (5) and the coin data SD ₃ is obtained in the measuring device (12),
It is determined whether the coin data SD ₃ is included in (A to D) S ₃₄ to (A to D) S ₃₅ and (A to D) S ₃₂ to (A to D) S ₃₃ .
The type of coin and the necessity of correcting the coin determination data are determined.
The coin type E is omitted in FIG.

Figure 3 shows the storage of the memory (14) where data can be rewritten.
It is a schematic representation and stores data about materials.
Part (M₁) And a section that stores data about plate thickness
Minute (M₂) And the part that stores data about the outer diameter
(M₃) And judgment data for judging the reliability of memory
Part to store (M_Four) And have coins
Storage area corresponding to types A, B, C, D, E (m₁), (M₂), (M
₃), (M_Four), (M_Five) Each made up of. And
Each storage area for material (m₁), (M₂), (M₃),
(M_Four), (M_Five) (A ~ E) D₁₁~ (AE) D_1n
A to E measured by the sensor (3) are stored in the respective storage units of
Of the coin data of each coin type of
The data of n coins to be added are stored respectively, and the plate thickness
For each storage area (m₁), (M₂), (M₃),
(M_Four), (M_Five) (A ~ E) D_{twenty one}~ (AE) D_2n
A to E measured by the sensor (4) are stored in each storage unit of
Of the coin data of each coin type of
The data of n coins to be added are stored respectively, and the outer diameter is
For each storage area (m₁), (M₂), (M₃),
(M_Four), (M_Five) (A ~ E) D₃₁~ (AE) D_3n
In each of the storage units, A to E measured by the sensor (5)
Of the coin data of each coin type of
The n coin data to be added are stored. So
The data of n kinds of coins satisfying the respective second range is the maximum.
It will be rewritten with a new one. Therefore, in FIG.
Coin data SD₁Is a type A coin in the material inspection
If the second range of is satisfied, the coin data SD₁Is a memory
Department AD₁₁And store in AD₁₁The data stored in
Data is stored in AD₁₂Store in and below AD₁₂・ AD₁₃...... AD
_{1 (n-1)}The data stored in each is AD₁₃・ AD₁₄…
… AD_1nShift to. The material storage area (m₁) ~)
m_Five) In AD₁ In the memory section AD₁₁~ AD_1nIn
The average value of the coin data being toured is the A class hardness of the material inspection.
It is stored as coin judgment data about coins,
Memory BD₁ The storage unit BD₁₁~ BD_1nHard store
Coins of type B coins whose material data are averaged for material inspection
It is stored as judgment data. And storage CD₁
~ ED₁ Is the corresponding n kinds of coin data
The average value of the coins is coin judgment for C to E type coins in material inspection.
It is stored as data. Similarly, storage area for plate thickness
(M₁) ~ (M_Five) In AD₂ ~ ED₂ A to
The average value of each n types of coin data for class E coins is
Stored as currency judgment data, the outer diameter storage area (m₁)
~ (M_Five) In AD₃ ~ ED₃ Includes A to E hard
The average value of each n types of coin data for coins is coin judgment
Stored as data. Data processing equipment (13)
When the coin data satisfying the second range is obtained,
Any of the corresponding storage units (A to E) D₁₁・ (AE) D_{twenty one}・
(AE) D₃₁Stored in
Calculate the average value of the new n kinds of coin data and respond
Any storage unit (A to E) D₁ ・ (AE) D₂ ・ (A
~ E) D₃ Stored as coin judgment data in. to this
If another coin of the same type is inserted next, this coin
The coin data obtained at
Does the data match the allowable range and the second range?
Is determined.

In this way, the coin determination data is corrected when a genuine coin whose coin data satisfies the second range is inserted. However, the device (1) is installed, a long time has passed, and the change over time also occurs. At the end, when the coin judgment data is stabilized to some extent, the changeover switch (15) which is a changeover means is turned on. The coin determination data at this time is appropriate data according to the installed environment and the variation in the individual configuration of the device. Then, when the appropriate coin determination data is determined, the data processing device (13) does not correct the coin determination data even if a coin is subsequently inserted,
Moreover, the permissible range for recognizing that the coin data and the coin determination data match is set to the third range, which is narrower than before.
Explaining this with the type A coin in the material inspection, as shown in FIG. 2, the data processing device (13) defines the third range, which is the narrower allowable range together with a ₁₁ and a _12. A ₁₃ is programmed as the data of. Therefore, when the coin data is input while the changeover switch (15) is ON, the data processing device (13) compares the coin data with the fixed coin determination data, and within the allowable range of the third range. If they match, it is determined to be a true coin. In this way, the coin judgment data that is stable by repeating the correction is
It is the optimum data according to the configuration of the device and the usage conditions, and if this data is used as a reference, a genuine coin can be reliably received even if the allowable range is narrowed. In addition, narrowing the allowable range also improves the elimination of counterfeit coins.

Data processing of the data processing device (13) is shown in FIG. 5 and FIG. 5A.
The flow chart is shown to explain the operation of the coin sorting device (1).
Reveal After the power is turned on, the data processing device (13)
In the memory, the storage section DX of the memory (14)₁~ DX₆Store in
Read out the judgment data and the contents change.
Determine if not. If the judgment data is changing
If so, proceed to the initial set mode INT, (A to E) D_{(1
~ 3) (1 ~ n)}And (AE) D_{(1 ~ 3)} In each memory of
Write semi-data, DX₁~ DX_nAppropriate judgment for each storage unit of
Data for writing and AD_{1 α}~ ED_{1 α}・ AD_{2 α}~ ED_2
α・ AD_{3 α}~ ED_{3 α}・ AD_{1 α}~ ED_{1 β}・ AD_{2 β}~ ED_{2 β}・ AD_3
β~ ED_{3 β}Clear each memory of. Standard data is manufacturing
Various coins from A to E, which are typical of coin sorting equipment (1)
When inserting coins, the measuring devices (10), (11), (12)
The data obtained is used to program the data processor (13).
Has been set, and in the initial set mode INT
Standard data (AE) S₁₁Is the storage unit (A to E) D_{1 (1 ~ n)}
And (AE) D₁ Standard data stored in each
(AE) S_{twenty one}Is the storage unit (A to E) D_{2 (1 ~ n)}And (A ~
E) D₂ Standard data (AE) stored in each
S₃₁Is the storage unit (A to E) D_{3 (1 ~ n)}And (AE) D₃ To
Stored respectively. Therefore, the initial set
In the code INT, the description of material, plate thickness, and outer diameter is given.
Memory area (m₁), (M₂), (M₃), (M_Four), (M_Five)
The same n-type coin data storage unit
Standard data of a class is written, and the average value of these data is
This standard data is also written in the coin judgment data storage section.
Be done.

Coin data SD from the measuring device (10) in S3 step₁
When is input, the data processor (13)
After confirming that the selector switch (15) is off,
Go on. In this S5 step, coin data SD₁
And memory (14) memory AD₁ ・ BD₁ ・ CD₁ ・ DD₁ ・
ED₁ The coin judgment data stored in
Then, if they match within the allowable range, in S7 step
Any coin type from A to E to which the coin determination data belongs
It is determined that As is clear from FIG. 4, in this example
Is coin data that matches multiple coin judgment data.
And all coins that are in agreement at this time
Determine the likelihood of Next, in S9 step
Data SD₁And each coin judgment data within the second range
If there is a match, this coin day
Correct coin matching data based on
Decide that. Each allowable range up to the second range
When sandwiched, coin data SD₁Is included in any of the second ranges
No, or one type of second coin belonging to any coin type
It is included in the range of. So if included
If the coin type is
Storage part AD₁₁~ ED₁₁This coin data SD₁Load
In addition, the storage unit (A to E) D₁₁~ (AE) D
_{1 (n-1)}Enter the (n-1) coin data stored in
Memory (AE) D₁₂~ (AE) D_1nShift to.
Then, in the next S13 step,
Storage unit (A to E) D₁₁~ (A ~
E) D_1nAverage of n kinds of coin data stored in
Calculate the coin judgment data corrected by
Storage part AD of some₁ ~ ED₁ To load.

Coin data SD from the measuring device (11) in step S15₂
When is input, the data processing device (13)
After confirming that the selector switch (15) is off,
Go to step. In this S17 step, coin data S
D₂And memory (14) memory AD₂ ・ BD₂ ・ CD₂ ・ DD₂
・ ED₂ Sequentially compare each coin judgment data stored in
In comparison, in S19 step, it matches within the allowable range
It is determined that the type of coin belongs to the coin determination data.
S21 step coin data SD₂And each coin judgment data
It is determined whether they match within the second range, and they match.
In this case, coin judgment based on this coin data
Decide to correct the data and proceed to step S23.
Mu. In step S23, coins matching any of A to E
Memory AD corresponding to the type_{twenty one}~ ED_{twenty one}This coin data SD₂
And the following, corresponding to this coin type
Memory (A to E) D_{twenty one}~ (AE) D_{2 (n-1)}Remember
(N-1) kinds of coin data are stored in the storage unit (A to E) D_{twenty two}
~ (AE) D_2nShift to. And the next S25 station
In step S23, the data was not rewritten in step S23.
Memory section (AE) D_{twenty one}~ (AE) D_2nIs stored in
Is corrected by the average value of n coin data
Calculates currency determination data and stores any corresponding storage unit AD₂
~ ED₂ To load.

Coin data S by the measuring device (12) in step S27
D₃When is input, the data processing device (13) proceeds to the next S28.
After confirming that the changeover switch (15) is OFF in step,
Go to step. In this S29 step, coin day
SD₃And memory (14) memory AD₃ ・ BD₃ ・ CD₃ ・ DD
₃ ・ ED₃ Sequentially with each coin judgment data stored in
In comparison, the coin type is determined in step S31, and step S33 is performed.
Need to correct the coin judgment data with
In this case, in step S35, the predetermined storage unit AD₃₁~ ED₃₁Nico
Coin data SD₃With the following, this hard
Storage unit (AE) D corresponding to the type of coin₃₁~ (AE) D
_{3 (n-1)}Enter the (n-1) coin data stored in
Memory (AE) D₃₂~ (AE) D_3nShift to.
Then, in the next S37 step,
Storage unit (A to E) D₁₁~ (A ~
E) D_1nAverage of n kinds of coin data stored in
Calculate the coin judgment data corrected by the value and respond
Any storage unit AD₃ ~ ED₃ To load.

In step S39, if there is a common coin type among the coin types determined in steps S7, S19, and S31, it is determined that the inspection coin is a true coin of this type, and in the next step S41, the data processing device ( 13) controls the coin gate (15) to accept the inspection coins. However, if it is determined in any one of the above steps that it does not belong to any coin type, or if there is no common coin type among the coin types determined in each step, the inspection coin is a fake coin. Therefore, the acceptance control of the coin gate (15) is not performed.

Then, with the changeover switch (15) turned on,
Coin data SD in S3 step by inserting inspection coins₁Got
Then, the processing from step S4 to step S101 is performed. De
The data processing device (13), in step S101,
Coin data SD₁And each storage unit AD₁ ~ ED₁ Stored in
Matches each coin judgment data within the third range
It is determined that they match within the allowable range of the third range.
Then, in step S103, coin matching judgment data
It is determined that it is one of the coin types from A to E to which it belongs.
It And in S15 step, coin day with the same inspection coin
SD₂Is obtained, the steps S16 to S201 are processed.
It makes sense. In S201 step, coin data SD₂When
Each memory unit AD₂ ~ ED₂ Each coin judgment data stored in
Data is determined within the third range to determine whether they match.
If so, in step S203, coin coins that match
It is any coin type from A to E to which the constant data belongs.
To determine. Similarly, in S27 step, coin data SD₃Got
Then, the process from step S28 to step S301 is performed.
Coin data and each storage unit AD₃ ~ ED₃ Is stored in
Compare with each coin judgment data,
If the coin determination data and the coin data match, S303
In the step, the coin judgment data that is matched belongs
Judged as a coin of the type And in S39 step
Of the coin types determined in steps S103, S203, and S303
If you determine that there is a common coin type in
Acceptance control is performed in step S41 when it is determined that this kind of genuine coin.
Nau.

The operation of the coin sorting device (1) described above will be described with reference to FIG. 6. Initially, a wide allowable range (solid line) and a second range (dotted line) are set for the coin determination data indicated by the wavy line. ing. Then, when genuine coins satisfying the second range are inserted, the coin determination data changes and is corrected to proper data. Then, when the changeover switch (15) is operated at the time (t) when the fluctuation of the coin judgment data becomes stable and becomes the optimum data, the coin judgment data is fixed thereafter and the allowable range is set to the narrower third range. It

(G) Effect of the Invention According to the present invention, the effect determination data in the effect selecting device can be corrected to an appropriate one according to the change of the device over time or the change of drift and the like, which enables highly accurate coin selection. . When the optimal coin judgment data is obtained by overcoming the variations in the usage environment of the device and the configuration of each device, by fixing the correction of the coin judgment data by the operation of the switching means, the acceptability of the true coin and the false coin The acceptance range is set with excellent exclusion.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a coin sorting device, FIG. 2 is a diagram for explaining an allowable range and a second range, FIG. 3 is a diagram schematically showing memory storage, and FIG. 4 is coin data and coin determination. FIGS. 5 and 5A are flowcharts showing the operation of the data processing device, and FIG. 6 is a diagram illustrating an example of a coin determination data correction method. (1) …… Coin sorter, (3), (4), (5) ……
Sensor, (10), (11), (12) …… Measuring device, (1
3) ... data processing device, (14) ... memory.

Claims (1)

[Claims] 1. An oscillating magnetic field is formed, coin data is detected by measuring the degree of influence of an inspection coin on the magnetic field, and the coin data and the coin judgment data are compared with each other to be within an allowable range. In the coin sorting device that determines that the inspection coin is proper when both data match, the second range included in the allowable range is set, and the coin data obtained by the inspection coin is the second data. Within the range, the coin determination data is corrected based on this coin data, and further, a switching means is provided, and when the switching means operates, the correction of the coin determination data by the inspection coin is stopped. A coin inspection method in a coin sorting device.