JPH11146938A - Medal game machine and control of medal delivery rate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fluctuate a hit rate of a reel slot at random to improve player's interest and keep a medal delivery rate to a fixed rate at all times to facilitate the operation of a game machine by recording medal delivery rates in a fixed period of time in the past and controlling a hit rate of a slot in accordance with the recorded values. SOLUTION: When a medal loaded by a player is hit out from above a pin panel 10 by a medal loading device and drops and the dropping medal enters a slot start checker 12, a reel slot 11 is rotated by a slot control circuit 22. When patterns of three reels reach a predetermined combination, a predetermined number of medals are delivered from a delivery port. In this case, a hit probability control circuit 23 and a delivery rate control circuit 24 are provided in a control circuit 20 to control the probability that gives a hit and the delivery rate of medal. That is, the hit rate is controlled in such a manner that it is fluctuated by the cycle and amplitude determined at random and its average value becomes a hit rate set value by the delivery rate control circuit 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a medal game machine and a method for controlling a medal payout rate of the medal game machine.

[0002]

2. Description of the Related Art Here, a medal payout rate Θ is expressed by the following equation (1).
That is,

(Equation 1) Is a value calculated by

The medal payout rate of this medal game device メ ダ ル
Varies slightly due to various factors. However, if the medal payout rate Θ decreases, the popularity of customers drops,
If the price is too high, a loss of business will occur in the game hall, so it is desirable that the medal payout rate Θ is always kept at a constant reference level. It is desirable that the medal payout rate Θ be changed with a complicated cycle and amplitude, rather than being constantly constant, and that the average value Θmean be managed so as to match the desired ideal value.

Conventionally, the medal payout rate の of this medal game device has been adjusted by finely adjusting the pin positions of the pin board. This adjustment requires skill, it is impossible to make adjustments during business hours, and it is not immediately known whether or not the intended adjustment has been made. There was a problem that the result of the adjustment could not be confirmed.

In the above conventional method, the medal payout rate Θ
Cannot be finely adjusted at any time, and even more so with complex periods and amplitudes.It is almost impossible to imagine controlling the average value to match the desired ideal value. Was.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to always make the medal payout rate の of a medal game machine simple and ideal. It is an object of the present invention to provide a novel medal game device and a medal payout rate control method thereof, which are configured to be able to control each other.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is as follows.
A pin panel having a reel slot, a slot start checker, a winning checker, and a large number of pins,
A reel slot control device that is activated when a medal enters the slot start checker, activates the reel slot, and controls the reel slot so as to win at a predetermined probability. The medal game machine configured to pay out a predetermined number of medals, a device for recording the medal payout rate 内 within a predetermined period in the past, and a record value of a device for recording the payout rate. And a medal payout rate control device comprising a device for controlling a hit rate of a slot according to the above.

[0008] Further, in the above-mentioned medal game device according to the present invention, the hit rate of the reel slot is appropriately and desirably determined in accordance with the medal payout rate 内 in a past fixed period. This is realized by controlling the winning rate of the reel slots so that the average payout rate of medals is substantially constant.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings. FIG. 1 is an explanatory diagram showing the configuration of the medal game device according to the present invention.

In FIG. 1, reference numeral 10 denotes a pin panel, and reference numeral 20 denotes a circuit for controlling the operation of the entire medal game device. The pin panel 10 includes a video-type reel slot 11, a slot start checker 12, a winning checker 13, a return trap 14, A control circuit 20 having a plurality of pins 15
Comprises a CPU 21, a slot control circuit 22, a hit probability control circuit 23, a payout rate control circuit 24, and the like.

In this drawing, for simplicity of description, parts unrelated to the present invention, such as a cabinet of the entire apparatus, a glass plate on the front of a pin panel, a medal input device, a punching device, a payout device, and a dropout device are shown. Is omitted. The medal to be inserted by the player is shot from above the pin panel 10 by a medal insertion device (not shown), and falls between the pin panel 10 and the glass plate on the front surface thereof.

When the falling medal enters the slot start checker 12, the control circuit 20 rotates the reel slot 11 via the slot control circuit 22,
When the pattern of the reels matches a predetermined combination, a predetermined number of medals are paid out to a player from a payout port (not shown). In addition, medal is prize checker 1
When the player enters 3, a predetermined number of medals are paid out to the player from a payout port (not shown).

When a medal that falls to the lower end of the pin panel 10 enters the return trap 14, the medal is paid back to the player from a payout port (not shown). Is collected in the medal game device.

As described above, in the medal game device, the management of the payout rate of medals is extremely important, and it is advantageous if the medal payout rate is managed reliably and easily.
Thus, in the present embodiment, the control circuit 20 has the hit probability control circuit 23 and the payout rate control circuit 24, and by these, the probability that the reel slot 11 hits and the payout rate of the medals are reduced. It is controlled.

The hit probability control circuit 23 controls the slot control circuit 22 to change the hit rate E of the reel slot 11 between a maximum allowable value Emax and a minimum allowable value Emin, for example, as shown in FIG. The payout rate control circuit 24 fluctuates at a randomly determined cycle and amplitude, and the average value Emean is obtained.
Is controlled so as to be a hit ratio set value specified by the user.

The symbols at the time of stopping each reel in the reel slot 11 are randomly determined. As a result, the winning rate E of the reel slot 11 given by the following equation (2), that is,

(Equation 2) Fluctuates within the range of not more than the maximum value Emax and not less than the minimum value Emin, and the moving average value within a considerable period is E
Make it mean.

Such control can be performed, for example, as follows. 77 hits on reel slot 11
It is assumed that the number is 7, and whether each digit is accepted or not is determined by a random lottery method. One symbol is randomly selected three times from a population consisting of a total of N symbols including n symbols 7, and the selected symbols are sequentially allocated to each digit of the reel slot 11. The probability of getting 7 in each lottery is (n /
N), and therefore, the probability E that 7 is aligned in three digits is (n / N) ³
It is. Now, for example, when N = 1000, the relationship between n and E is as follows.

[Table 1]

Accordingly, by appropriately changing n, the hitting ratio E can be changed between Emax and Emin as described above, and the average value can be made equal to Emean. For example,
n is between 292 and 422, and the average value of n ³ is 368 ³
If Emax is changed to become 7.5%, Emean
Of 5% and Emin of 2.5%.

On the other hand, the payout rate Φ of medals depends on the probability that medals enter the slot start checker 12, the winning checker 13, and the return trap 14, respectively, and the number of medals paid out when the medals enter them.
Now, let the above probabilities be E ₁₂ , E ₁₃ , and E _14, and the corresponding medal payout numbers are Z ₁₂ , Z ₁₃ ,
When Z _14, payout rate of medals Φ is as follows.

(Equation 3)

Here, the above probabilities E ₁₂ , E ₁₃ and E ₁₄ are
In addition to the situation of the pin panel 10, especially the inclination and the position of the pin, etc., it varies subtly depending on the skill of the player or the individual difference in the game method, the ambient temperature, the vibration of the machine, the degree of wear of the medal, the degree of contamination, etc. . In the present invention, the winning rate E of the reel slot in the above equation 3 is controlled so that the payout rate Φ of medals is varied within a certain range and the long-term moving average value is maintained at a desired value. Things.

For this purpose, the control circuit 20 is provided with a payout rate control circuit 24. The payout rate control circuit 24 records a change in the medal payout rate during a certain period in the past, and when a deviation ΔΦ occurs between the average value or the integrated value and a predetermined reference value, the deviation ΔΦ Is set and the above set values of Emax, Emean and Emin are changed and controlled.

Therefore, it is desirable that the control system of the hit ratio of the reel slot is not very accurate, has a moderate waste time and delay, and causes overshoot, undershoot and hunting. In addition, the control operation may be performed by an accurate proportional operation, differential operation, or integral operation.

The so-called "adjustable operation" means, for example, that the control operation is not performed if the deviation ΔΦ is within a predetermined allowable limit ± ε. Rather than changing controlled values such as Emean in proportion to ΔΦ, its differential value or integral value, one random value randomly selected by a suitable method from a certain numerical range as a new Emean is hit rate control. Set to circuit 23,
Also, regarding Emax and Emin (Emax-Emean),
In the same manner as above, (Emean-Emin) is randomly selected from predetermined ranges by appropriate methods, and numerical values ΔEmax and ΔEmin are selected, and new set values of Emax and Emin are obtained by using these values.
Equations 4 and 5 below:

(Equation 4)

(Equation 5) , So that Ema of the hit probability control circuit 23
Change and control the set values of x, Emean and Emin. or,
During these control operations, it is desirable to reselect and reset the above Emax, Emean and Emin at a cycle determined at random as appropriate.

[0024]

Since the present invention is constructed as described above, according to the present invention, the hit rate of the reel slot 11 fluctuates randomly, so that the interest of the player is enhanced and the popularity of the player decreases over a long period of time. In addition, since the medal payout rate is always constant, it is possible to provide a novel medal game device that can be installed in a game hall with security.

The present invention is not limited to the above embodiment. For example, not only the pin panel and the reel slot, but also the slot control circuit, the hit probability control circuit, the payout rate control circuit, and the medal payout rate can be controlled. The control method etc.
The present invention encompasses all modified embodiments that can be easily conceived by a person skilled in the art from the above description within the scope of the purpose, and can be appropriately modified as needed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing the configuration of one embodiment of a medal game device according to the present invention.

[Explanation of symbols]

 10 pin panel 11 reel slot 12 slot start checker 13 winning checker 14 return trap 15 pin 20 control circuit 21 CPU 22 slot control circuit 23 hit rate control circuit 24 payout rate control circuit

Claims (3)

[Claims] 1. A pin panel (10) having a reel slot (11), a slot start checker (12), a winning checker (13), a return trap (14) and a number of pins (15), and a slot start checker (12). And a slot control device (22) for controlling the reel slot (11) so that the reel slot (11) is activated when a medal enters the reel slot (11) so as to win at a predetermined probability. In the medal game machine (10) configured to pay out a predetermined number of medals when a hit occurs in the slot (11), the winning rate of the reel slot (11) is selected within a predetermined range. A hit rate control circuit (23) that can be controlled to match the rate setting value; and a medal payout rate within a certain period in the past, and the recorded value. A medal payout rate control device (24) for switching and controlling a hit rate set value of a hit rate control circuit (23) of a reel slot (11) according to the above-mentioned medal game machine (10). 2. A medal game machine (10) according to claim 1.
Controlling the medal payout ratio of the reel slot (11) to a hit ratio set value determined in accordance with a change in the medal payout ratio within a predetermined period in the past. A method for controlling a medal payout rate of the above-mentioned medal game machine (10). 3. The medal game machine (10) according to claim 2, wherein the hit ratio of the reel slot (11) is controlled such that the average payout rate of medals is substantially constant. Method.