JP2003275444A - Game machine managing device and game machine managing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine managing device and a game machine managing method capable of determining anomaly and dishonesty per each game machine in a game house on a real time basis. <P>SOLUTION: The game machine managing device is composed at least of a first counting means provided so as to generate a signal pulse responding to a supplied number of balls to the game machine, a second counting means provided so as to generate a signal pulse responding to a number of prize balls in the game machine, a third counting means provided so as to generate a signal pulse responding to sales in a ball dispenser provided in the game machine, a calculating means for receiving the signal pulses of the first, second and third counting means, converting them into numbers of balls and calculating a total sum of the numbers of balls, and a computer carrying out calculation and management. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine management device and a game machine management method for managing a game machine. In particular, a game machine management device and a game machine for the purpose of quickly and accurately grasping an abnormality in a peripheral machine such as a game machine and a ball rental machine provided in the game machine and an illegal operation on the game machine and the peripheral machine. Regarding machine management method.

[0002]

2. Description of the Related Art In a game arcade, early detection of abnormalities in the game arcade and its peripherals and illegal operations on the game arcade and peripherals is extremely important for smooth sales and achievement of business goals. is important. Conventionally, in order to detect the above-mentioned abnormality and fraud, the total of the ball counters for one day is subtracted from the total number of prize balls of the game machine for one day, and the error is calculated. That is, the balls thrown to the ball counter include the number of prize balls won by the game, and the total number of balls thrown to the ball counter in one day is ejected from the gaming table as prize balls. It is equal to the sum of the total number of prize balls awarded and the total number of balls lent from the ball lending machine provided in the game machine in one day. Therefore, if the total number of balls thrown to the ball counting machine is larger or smaller than the sum of the total number of prize balls paid out from the gaming machine and the total number of balls lent out from the ball lending machine, some abnormality or It is thought that there was an illegal operation. Based on this knowledge, the business operator of the amusement arcade checks the error every day and monitors the presence or absence of abnormality or fraud.

[0003]

However, in the conventional method, since the presence or absence of abnormality or fraud is determined by the total number of balls in the game hall, it is possible to identify where the abnormality or fraud occurs. I couldn't do it. Therefore, even if you know that there is an abnormality or fraud, there is no means to identify the place where the abnormality or fraud has occurred, so check the data of each gaming machine and check the operation of the suspicious gaming machine etc. I was dealing with it. Moreover, the work of calculating the error of the total number of balls is a work after the store is closed, which is a heavy work for the employees of the amusement hall, and this improvement has been demanded.

As a device for monitoring anomalies and frauds in this type of gaming machine, Japanese Patent Laid-Open No. 11-192370 "Pachinko Hall Fraud Detection Device" is known. That is, the total number of balls obtained by integrating the replenishment signal, the ball-rental signal, the out-ball signal, and the count signal of the number of won balls (prize balls) with the number of corrected balls preset in the replenishment signal and the ball-rental signal, and the count signal. Is a device that judges that the count signal is larger than the count signal, and judges that the count signal is normal in other cases. In this device, it is necessary to install a large number of counters for measuring the number of balls, and it is necessary to add the corrected number of balls to the count value. For example, the operation of the device is complicated.

The present invention solves the above-mentioned problems of the prior art, and aims to provide a gaming machine management apparatus and a gaming machine management method for counting the number of balls with a minimum counter and detecting abnormalities and fraud with high accuracy. To do. In addition, it is possible to judge abnormalities and frauds that were previously made by the error of the ball total in the entire hall individually for each gaming table, and it is possible to easily and accurately detect abnormalities and frauds. is there. As a result, the burden on the game hall operator can be significantly reduced.

[0006]

Means for Solving the Problems The gist of the present invention is a first counting means provided to generate a signal pulse according to at least the number of balls supplied to a gaming machine, and the number of prize balls in the gaming machine. Second counting means provided so as to generate a signal pulse according to, a third counting means provided so as to generate a signal pulse according to sales in the ball lending machine provided at the gaming machine, First counting means, second counting means and third
The gaming machine management device is provided with an arithmetic means for receiving a signal pulse from the counting means and converting each into the number of balls to calculate the number of balls, and a computer for performing arithmetic and management.

[0007] Then, for each gaming machine, first counting means provided so as to generate at least a signal pulse corresponding to the number of balls supplied to the gaming machine, a signal corresponding to the number of prize balls in the gaming machine Second counting means provided to generate a pulse, third counting means provided to generate a signal pulse according to sales in a ball lending machine provided corresponding to the game machine, first An arithmetic means for receiving the signal pulses from the counting means, the second counting means and the third counting means and converting each to the number of balls to calculate the number of balls and a computer for performing calculation and management can be provided.

The calculating means or the computer measures the signal pulses sent from the first counting means, the second counting means and the third counting means, the means for converting each measured signal pulse into the number of balls, and each conversion. Cumulative number of balls and total number of supply balls N
1. Means for calculating the total number N2 of prize balls and the total number N3 of lent balls and the total error E = N1− (N2 + N3) or (N2 + N)
3) A means for calculating -N1 can be provided.

The cumulative error E can be calculated by a calculation means or a computer. When the calculation means performs the calculation and the absolute value of the cumulative error E becomes larger than the allowable error Ec, the calculation means notifies the computer to that effect. The computer that has received the notification can notify the manager of the game hall or the related persons via the broadcasting facility, for example. When the computer calculates and the absolute value of the accumulated error E becomes larger than the allowable error Ec, the computer notifies the manager of the game hall and the related persons via the broadcasting facility.

In calculating the cumulative error E, the cumulative error E = N1- (N2 + N3) or (N2 + N3) -N
It is possible to obtain the total error E by obtaining the error e for every fixed time. For example, it is possible to obtain the cumulative error E by obtaining the error e in units of seconds or minutes at regular time intervals and cumulatively calculating the error e.
That is, the accumulated error is initialized to zero, and the error e
Where e = n1- (n2 + n3) or (n2 + n3) -n1
Then, the cumulative error E can be obtained by E = E + e. Here, n1 is the number of replenishing balls for each fixed time,
n2 is the number of prize balls per fixed time, and n3 is the number of ball rentals per fixed time.

At this time, the arithmetic means or the computer determines the absolute value of the cumulative error E and the set allowable error Ec, and the absolute value of the cumulative error E is the allowable error Ec.
If it is larger than c, means for notifying this may be provided. Further, the arithmetic means or the computer may include means for determining whether the value of the cumulative error E is positive or negative and notifying an abnormality or an incorrect portion. At this time, as described above, the calculation of the cumulative error E can be performed by the calculation means or the computer. When the calculation means performs the calculation and the absolute value of the cumulative error E becomes larger than the allowable error Ec, the calculation means notifies the computer to that effect. The computer that has received the notification can notify the manager of the game hall or the related persons via the broadcasting facility, for example. When the computer calculates and the absolute value of the cumulative error E becomes larger than the allowable error Ec, the computer can notify the manager of the game hall and the related persons via the broadcasting facility.

Further, at least first counting means provided to generate a signal pulse according to the number of balls supplied to the gaming machine, so as to generate a signal pulse according to the number of prize balls in the gaming machine. A second counting means provided, a third counting means, a first counting means, and a second counting means, which are provided so as to generate a signal pulse according to sales in a ball lending machine provided in the game machine. In the gaming machine management device including a computing unit that receives a signal pulse from the third counting unit and converts each into the number of balls to calculate the number of balls, and a computer that performs computation and management, the computing unit or the computer is the first The signal pulse sent from the counting means, the second counting means and the third counting means is measured, each measured signal pulse is converted into the number of balls, and each converted number of balls is accumulated and the total number of replenished balls N
1. Calculate the total number N2 of prize balls and the total number N3 of lent balls, and calculate the total error E = N1- (N2 + N3) or (N2 + N3) -N.
1 is calculated, and the absolute value of the cumulative error E and the allowable error Ec are calculated.
It is a game machine management method characterized in that the size of the game is judged and an abnormality or an irregularity is notified. Then, it is a gaming machine management method of judging whether the value of the cumulative error E is positive or negative and notifying the abnormal portion. At this time, it is possible to determine whether the value of the cumulative error E is positive or negative and notify the abnormal or incorrect portion.

When obtaining the cumulative error E, it can also be obtained as a cumulative value of the error e at regular time intervals, as described above. That is, at least the first counting means is provided to generate a signal pulse according to the number of balls supplied to the gaming machine, and is provided to generate a signal pulse according to the number of prize balls in the gaming machine. Second counting means, third counting means, first counting means, second counting means and third counting means provided so as to generate a signal pulse according to sales in the ball lending machine provided in the gaming machine. In the gaming machine management device, which is configured by an arithmetic means for receiving a signal pulse from the means and converting each to the number of balls and calculating the number of balls, the arithmetic means or the computer calculates the accumulated error E. Initialized to zero, the signal pulse for every fixed time is converted into the number of balls, and the cumulative number of replenishing balls for every fixed time n1,
The cumulative number of prize balls n2 and the cumulative number of ball rentals n3 are calculated, and an error e = n1- (n2 + n3) or (n2 + n) at regular time intervals.
3) -n1 is calculated, the cumulative error is calculated as E = E + e, and the absolute value of the cumulative error E and the set allowable error E are set.
The magnitude of c is determined, and the absolute value of the cumulative error E is the allowable error Ec.
It is a gaming machine management method of notifying an abnormality or fraud when it is larger than the above.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a gaming machine management device according to the present invention will be described based on embodiments with reference to the drawings. FIG. 1 shows the configuration when the present invention is applied to a gaming machine, particularly a pachinko gaming machine operated in combination with the most common ball lending machine. FIG. 2 shows a flowchart showing the operation of the calculation means 5 of FIG.

In FIG. 1, the gaming machine management apparatus of the present invention receives signals 4 from the gaming machine 1, the ball lending machine 2, the replenishing device 3, the gaming machine 1, the ball lending machine 2 and the replenishing device 3 for measurement. It is composed of a computing means 5, a computer 6 and a communication line 7. Then, a first counter that generates a signal pulse according to the number of balls supplied to the gaming machine 1 is a second counter that generates a signal pulse according to the number of prize balls in the gaming machine 1 to the supply device 3. The gaming machine 1 is provided with each of the ball lending machine 3 and each of the third counting machines that generate a signal pulse according to the sales of the ball lending machine 2. In addition, when a player uses the pachinko gaming machine 1 to play a game, an out signal (not shown) corresponding to ball firing, a special prize signal (not shown) associated with a jackpot, and probability fluctuation The pachinko gaming machine 1 outputs signals such as a probability change signal (not shown) in accordance with the state and a start signal (not shown) in association with the jackpot lottery.

The signal 4 is a sales signal 41 from the ball lending machine 2,
It consists of a replenishment signal 42 from the replenishment device 3 and a prize ball signal 43 from the pachinko gaming machine 1, and although not shown, other signals related to the operation of the pachinko gaming machine 1 are input to the computing means 5 and various data processing And the result is communication line 7
Is sent to the computer 6 via. Abnormality or fraudulent information notified to the computer is immediately notified to relevant persons including the game hall manager using, for example, broadcasting means.

Gaming machine 1, ball lending machine 2, replenishing device 3, computing means 5, computer 6, communication line 7, first counter, second
The counting machine and the third counting machine can be provided with the gaming machine island as a unit, and for each gaming machine, the ball lending machine 2, the replenishing device 3, the computing means 5, the computer 6, the communication line 7, the first counting machine. It is also possible to provide a counter, a second counter and a third counter. By providing each gaming machine, it is possible to surely grasp an abnormal or illegal place individually. In this case, since the arithmetic means 5 is provided corresponding to the gaming machine 1, the ball lending machine 2 and the supply device 3, there are a plurality of computing means 5. Computing means 5
The computer 6 has the correspondence between the gaming machine 1 and the gaming machine 1 as data, and data processing can be performed for each gaming machine.

The computer sets the permissible error, transmits an alarm, records these and calculates the number of balls, as well as operating data of the gaming machine, that is, a prize signal, a probability change signal, a start signal, an out signal for each machine, Various data such as award ball signals are recorded, and the opening / closing status of gaming machine doors is grasped.

The operation of the gaming machine management device of the present invention will be described below. First, the player borrows a ball for a game from the ball lending machine 2 by using a prepaid card or cash. At this time, the ball renter 2 displays the sales signal 4 corresponding to the purchase amount of the player.
3 is output. When a player plays a game using the pachinko gaming machine 1, an out signal (not shown) corresponding to the firing of a ball, a prize ball signal 42 corresponding to the payout of a prize ball according to the winning of the ball, Signals related to game such as special prize signal (not shown) with big hit, probability change signal (not shown) with probability change state, start signal (not shown) with big hit lottery Is output from the pachinko gaming machine 1. In the present invention, in addition to these signals, the replenishment device 3 sends a replenishment signal 41 to the computing means 2. In a normal hall monitoring device, various data necessary for hall business is generated by combining special prize signals, probability variation signals, start signals, out signals, prize ball signals, etc., but description thereof will be omitted.

The present invention is intended to detect an abnormality of a gaming machine, a supply device, a ball lending machine, or the like, and an illegal operation for each gaming machine. Hereinafter, the operation of the operation means 5 of this operation portion will be described with reference to the flowchart of FIG. The calculation means 5 sets the allowable error Ec which is the criterion in step S10. Since this allowable error Ec varies depending on the holding property of the table and the characteristics of the replenishment measure 3, the allowable error Ec is sent from the computer 6 to the calculation means 5 via the communication line 7 before the start of normal operation. In step S11, the supply signal 41 (signal pulse) sent from the supply device 3 is measured. The pulse measurement is generally cleared every time data is read, and addition processing is required by the calculation means 5 to obtain a cumulative measurement value.

Generally, unlike the number of replenishing balls and the number of pulses,
It is configured to output 1 pulse with 10 balls. Therefore, in step S12, the measured number of pulses is converted into the replenishment number n′1, and the cumulative replenishment number N1 is calculated by the calculation process of N1 = N1 + n′1. Similarly, in steps S13 and S14, the cumulative prize ball count N2 is calculated. In step S15, the sales signal 43 (signal pulse) from the ball lending machine 2 is measured. Sales signal is sales (Unit: Yen)
The signal of 100 yen per pulse is usually output.
If this number of pulse signals is P, sales are 100 * P
It becomes (yen). The rental ball n'3 is paid out corresponding to this sales. The number of balls to lend per 100 yen is n (usually 25
N'3 = n * (100 * P) / 100 =
This means that n * P balls have been paid out. Therefore, the cumulative total number of rental balls N3 is calculated by N3 = N3 + n'3. As a matter of course, N1 to N3 are initialized by an instruction from the computer 6 at the preparatory stage in which the calculation means 5 collects data. In the case where the pulse measurement is a method of measuring the cumulative total, the addition processing is not performed in the above description and only conversion to the number of balls is required.

In step S17, the cumulative error E is calculated. The sum of the number of lent balls N3 and the number of prize balls N2 is the total number of balls held by the player. Since this total number of balls is eventually supplied from the replenishing device 3 for replenishing each game machine with balls, if the replenishment is performed in synchronization, the cumulative error E of the number of balls coming in and out is equal to 1
And the value of E should be zero.

[0023]

[Equation 1] E = N1- (N2 + N3)

However, the replenishing device 3 replenishes balls to the upper plate provided in the gaming machine (not shown), and this replenishment is a system in which a fixed amount is replenished when the number of balls on the upper plate becomes small,
There is a system that is constantly replenished. In both cases, the balls are supplied without being synchronized with the payout of the balls of the gaming machine 1. Therefore, until the replenishment from the replenishing device 3 to the upper plate is started by the replenishment, the cumulative error E increases in the negative direction in the calculation by the equation 1 in step 17. Further, once the replenishment is started, a certain amount of replenishment is performed and N1 increases, so that the cumulative error E goes in a positive direction, and becomes a positive value depending on the ball replenishment of the replenishing device 3. The cumulative error E is calculated by the equation 1, but can also be calculated by the equation 2. In that case, of course,
The sign of the value of the cumulative error E is opposite.

[0025]

[Equation 2] E = (N2 + N3) -N1

As described above, in the actual gaming machine, the cumulative error E is generated even in the normal operating state. Therefore, the allowable error Ec is set, and the absolute value of the cumulative error E is compared with the value of Ec. , Abnormality, Illegal judgment. That is, in step 18, it is determined whether or not the absolute value of the cumulative error E exceeds the allowable error Ec. If it is within the normal range, nothing is done and the process returns to step 11 to perform the determination again. On the other hand, for example, when a ball is paid out from the pachinko gaming machine 1 due to an abnormal operation or an illegal operation without a prize ball signal, the cumulative error E obtained by the equation 1 is obtained.
Works in the negative direction and expands further in the negative direction.
Therefore, the determination condition in step S18 is satisfied, and in step 19, the computer 5 is notified of abnormality or injustice.

Also, the sales signal 43 due to a failure of the ball lending machine 2 or the like.
In the case where is not output or the malfunction in which the prize ball signal 42 of the pachinko gaming machine 1 is not output, the cumulative error E obtained by Equation 1 moves in the plus direction, and similarly, the determination in step S18 is established. And detect an abnormality. Cumulative error E
By determining whether the sign is positive or negative, it is possible to know which part is abnormal as well. It is possible to notify the computer of the failure location determined in this way.

In step S20, the abnormality signal from the computing means 5 to the computer 6 is held for a certain period of time, the presence or absence of the abnormality is judged again after the certain period of time, and the abnormality is notified to the computer 6 while the abnormality continues. I am trying to continue. Further, the measurement of the number of balls, the comparison of the total error E of the number of balls and the allowable error Ec, and the determination of abnormality or irregularity are repeatedly executed at regular intervals. The length of this period can be appropriately determined according to the type of game machine and its operating status.

In the above description, the calculation of the cumulative error is performed by the calculation means, but the computer 6 can receive the count value from the calculation means 5 and perform the same calculation.
In addition, as already described, the calculation of the cumulative error can be performed from the error of a fixed period. That is, the cumulative error is E = N1- (N2 + N3) or (N2 + N3)-
It can be obtained from N1, or the accumulated error E can be obtained by obtaining the error e for each fixed time. For example, it is possible to obtain the cumulative error E by obtaining the error e in units of seconds or minutes at regular time intervals and cumulatively calculating the error e. That is, the accumulated error is initialized to zero, and the error e for every fixed time is e = n1− (n2 + n3) or (n2 + n3) −.
It is possible to obtain the cumulative error E with E = E + e by obtaining it from n1. Here, n1 is the number of replenishment balls for each fixed time, n2 is the number of prize balls for each fixed time, and n3 is the number of rental balls for each fixed time.

As described above, according to the method of the present invention, it becomes possible to detect fraud, abnormality of the device, fraud in real time for each gaming machine, and further, there is information for estimating the cause of the abnormality. can get. In the description of FIG. 1, the pachinko gaming machine 1 is described as outputting the award ball signal 42, but some pachinko gaming machines do not output the award ball signal 42. It should be noted that in the case of such a model, the method of the present invention cannot be used.

[0031]

As described above, according to the present invention, it is possible to detect injustice to a gaming machine or abnormality of the equipment for each gaming machine in real time, and further, information for estimating the cause of the abnormality is obtained. Therefore, it becomes possible to make a great contribution to the management of the gaming machines in the gaming hall. That is, the present invention has an effect that it is possible to instantly and individually determine an abnormal or illegal place on the gaming machine.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of an embodiment of the present invention.

FIG. 2 is a diagram for explaining a calculation operation.

[Explanation of symbols]

1 Pachinko machine 2 ball rental machine 3 supply device 4 signals 5 computing means 6 computer 7 communication lines 41 Supply signal 42 award ball signal 43 Sales signal

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Sasaki             2-12-10 Shiba, Minato-ku, Tokyo Pi Inc.             ー Inside A-NET Technical Research Institute F-term (reference) 2C088 BA13 BA16 BA17 BC67 BC68                       CA08 CA17 CA23 CA35 EA46

Claims (9)

[Claims] 1. A first counting means provided to generate at least a signal pulse according to the number of balls supplied to a gaming machine, so as to generate a signal pulse according to the number of prize balls in the gaming machine. A second counting means provided, a third counting means, a first counting means, and a second counting means, which are provided so as to generate a signal pulse according to sales in a ball lending machine provided in the game machine. A gaming machine management device comprising arithmetic means for receiving a signal pulse from the third counting means and converting each into a number of balls to calculate the number of balls, and a computer for performing calculation and management. 2. A first counting means provided to generate at least a signal pulse corresponding to the number of balls supplied to the gaming machine, for each gaming machine, and a signal corresponding to the number of prize balls in the gaming machine. Second counting means provided to generate a pulse, third counting means provided to generate a signal pulse according to sales in a ball lending machine provided corresponding to the game machine, first 7. A calculation means for receiving a signal pulse from the counting means, the second counting means and the third counting means, converting each to a number of balls and calculating the number of balls, and a computer for performing calculation and management. The gaming machine management device according to 1. 3. The calculating means or computer means for measuring the signal pulses sent from the first counting means, the second counting means and the third counting means, the means for converting each measured signal pulse into the number of balls, Cumulative number of converted balls and total number of replenished balls N
1. Means for calculating the total number N2 of prize balls and the total number N3 of lent balls and the total error E = N1− (N2 + N3) or (N2 + N)
3) The gaming machine management device according to claim 1 or 2, further comprising means for calculating -N1. 4. The calculation means or computer, initialization means for making the cumulative error E zero, means for converting signal pulses at constant time intervals into the number of balls, the converted number of replenishment balls at constant time intervals n1, A means for calculating the number of prize balls n2 and the same number of rental balls n3, a means for calculating an error e = n1- (n2 + n3) or (n2 + n3) -n1 at constant time intervals, and a total error of E
3. The gaming machine management device according to claim 1 or 2, further comprising means for calculating as = E + e. 5. The calculation means or computer comprises means for determining the absolute value of the cumulative error E and the magnitude of the set allowable error Ec, and means for notifying when the absolute value of the cumulative error E is larger than the allowable error Ec. Claim 3 characterized by the above.
Alternatively, the gaming machine management device according to claim 4. 6. The method according to claim 3, wherein the computing means or the computer comprises means for judging whether the value of the cumulative error E is positive or negative and notifying an abnormality or an incorrect portion. The described gaming machine management device. 7. A first counting means provided to generate at least a signal pulse according to the number of balls supplied to the gaming machine, so as to generate a signal pulse according to the number of prize balls in the gaming machine. A second counting means provided, a third counting means, a first counting means, and a second counting means, which are provided so as to generate a signal pulse according to sales in a ball lending machine provided in the game machine. In a gaming machine management device comprising a calculating means for receiving a signal pulse from the third counting means and converting each to a number of balls to calculate the number of balls, and a computer for performing calculation and management, the calculating means or the computer The signal pulse sent from the 1st counting means, the 2nd counting means and the 3rd counting means is measured, each measured signal pulse is converted into the number of balls, and each converted number of balls is accumulated and the total number of replenished balls N
1. Calculate the total number N2 of prize balls and the total number N3 of lent balls, and calculate the total error E = N1- (N2 + N3) or (N2 + N3) -N.
1 is calculated, the absolute value of the accumulated error E and the set allowable error Ec are determined, and when the absolute value of the accumulated error E is larger than the allowable error Ec, an abnormality or an irregularity is notified. A gaming machine management method. 8. A first counting means provided so as to generate at least a signal pulse according to the number of balls supplied to the gaming machine, so as to generate a signal pulse according to the number of prize balls in the gaming machine. A second counting means provided, a third counting means, a first counting means, and a second counting means, which are provided so as to generate a signal pulse according to sales in a ball lending machine provided in the game machine. In a gaming machine management device comprising a calculation means for receiving a signal pulse from the third counting means and converting each to a number of balls to calculate the number of balls, and a computer for performing calculation and management, the calculation means or computer is a cumulative total. The error E is initialized to zero, the signal pulse for every fixed time is converted into the number of balls, and the cumulative total number of replenishing balls for every fixed time n1,
The cumulative number of prize balls n2 and the cumulative number of ball rentals n3 are calculated, and an error e = n1- (n2 + n3) or (n2 + n) at regular time intervals.
3) -n1 is calculated, the cumulative error is calculated as E = E + e, and the absolute value of the cumulative error E and the set allowable error E are set.
The magnitude of c is determined, and the absolute value of the cumulative error E is the allowable error Ec.
A gaming machine management method characterized by notifying an abnormality or a fraud when it is larger than the above. 9. The gaming machine management method according to claim 7, wherein whether the value of the erroneous cumulative difference E is positive or negative is determined and an abnormal or illegal portion is notified.