JP2012070860A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine readily determining the presence or absence of an abnormal condition of a hardware random number generating circuit every time random number obtaining conditions are satisfied.SOLUTION: A main controller 21 includes: a random number obtaining unit 21a for continuously obtaining a plurality of N hardware random numbers from the hardware random number generating circuit 41 at prize winning entry of a game ball into a first or second start pocket; an abnormal random number generation determining unit 21c for determining whether the values of at least two hardware random numbers of the plurality of N hardware random numbers obtained by the random number obtaining unit 21a, are coincident with each other or not; and an abnormal random number generation handling unit 21d for executing handling of abnormal random number generation when the abnormal random number generation determining unit 21c determines that the values of the at least two hardware random numbers of the plurality of N hardware random numbers, are coincident with each other.

Description

  The present invention relates to a gaming machine, and more particularly, to a gaming machine that determines whether or not a hard random number generation circuit is abnormal and executes random number abnormality handling processing when the hard random number generation circuit is abnormal.

  In recent years, in the mainstream pachinko machines, a lottery lottery is performed when a game ball wins a start opening, and if a big hit is won, the big winning opening opens and closes over multiple rounds and is advantageous to the player A big hit game that gives a state of profit is generated. In this type of pachinko gaming machine, generally, a hard random number generation circuit that sequentially generates lottery hard random numbers every minute time is provided, and when the game ball is won at the start opening, the lottery hard random numbers are acquired from the hard random number generation circuit. Whether or not the winning of the jackpot lottery is determined is determined based on whether or not the lottery hardware random number is a jackpot specific value.

  In conventional slot machines as well, generally, a hard random number for lottery is acquired from the hard random number generation circuit when a start lever is operated after a medal bet. Determined. In the case of a slot machine, a bonus game in which a specific symbol combination is easily arranged over a plurality of games is generated when a winner is won by a big hit lottery. The jackpot winning probability is determined by the ratio of the number of jackpot specific values to the total number of lottery hard random numbers that can be generated by the hard random number generation circuit.

  By the way, when the hard random number generation circuit cannot normally generate a hard random number due to a failure, the jackpot winning probability is unreasonably changed, the jackpot determination is not normally performed, and a disadvantage occurs on the player or the game hall side. Therefore, a technique for detecting an abnormality in the hard random number generation circuit has been proposed.

  In the pachinko machine of Patent Document 1, in the main process, the random number generation circuit abnormality check process is executed immediately after the power is turned on. If the random number generation circuit is abnormal, the abnormality notification process is executed, and then other game processes are performed. Loop processing is executed repeatedly so that it is not executed. In the random number generation circuit abnormality check process, a plurality of random numbers are acquired before the regular game control operation process, and the number of winnings of the determined plurality of random numbers is totaled, and the winning rate calculated from the number of winnings is calculated. The presence / absence of abnormality in the random number generation circuit is detected based on whether or not the probability of jackpot determination is close to the set probability.

  In the pachinko machine of Patent Document 2, random number monitoring processing is executed after winning check processing. In this random number monitoring process, the hard random number acquired this time and the hard random number acquired last time acquired by winning the game ball at the starting opening are compared, and for these both hard random numbers, all the 16 bits constituting the hard random number, It is determined whether the upper bit and the lower bit match each other. When the number of matches reaches the set number, the abnormality notification lamp is turned on.

  In the slot machine of Patent Document 3, random number update confirmation processing is executed at the beginning of the main processing during one game (or during reel rotation standby after the start lever is turned on). In this random number update confirmation processing, a plurality of (for example, 100) hard random numbers are acquired from the hard random number generation circuit within a very short time (for example, 1.8 μs), and the hard random number generation circuit is normal from these hard random numbers. Or abnormal. Specifically, for a plurality of acquired hard random numbers, it is determined whether both 0 and 1 have been confirmed for each of the 16 bits constituting the hard random number, and both 0 and 1 have not been confirmed. If there is, error handling is performed.

JP 2009-153897 A JP 2005-168562 A JP 2008-245958 A

  In the hard random number abnormality detection technique disclosed in Patent Document 1, since the random number generation circuit abnormality check process is executed only immediately after the power is turned on, the random number generation circuit outputs at least one of a plurality of hard random numbers for one cycle after the game operation starts. When a failure that cannot be generated has occurred, the big hit lottery executed when the random number acquisition condition is satisfied is not normally performed, and a disadvantage occurs on the player or the game hall side. In addition, the abnormality check process is configured to execute a plurality of steps (lottery process, success / failure determination process, aggregation process, abnormality determination process), and the process content is complicated.

In the hard random number abnormality detection techniques disclosed in Patent Documents 2 and 3, since the hard random number abnormality detection is processed and executed on a bit-by-bit basis, the processing content is complicated.
In addition, in the hard random number abnormality detection technique disclosed in Patent Document 2, a plurality of hard random numbers cannot be acquired unless a random number acquisition condition is satisfied a plurality of times, that is, unless a plurality of game balls are won at the start opening. Abnormality judgment cannot be performed. And, regarding the acquired multiple hard random numbers, when the number of random number matches that all the bits of the hard random number matches the set number of times (hard random number of the same value is set), it will be determined that the random number is abnormal, In this hard random number acquisition / abnormality determination process, although there is no random number abnormality, the number of random number matches becomes the set number, and the possibility of erroneous determination as random number abnormality remains low. That is, there is a limit to increasing the reliability of random number abnormality determination.

  Here, when the hard random number generation circuit is normal, it is impossible to acquire (that is, generate) a hard random number having the same value twice or more within the normal update time of the hard random number for one cycle. This can happen when the hard random number generation circuit is abnormal. However, it is difficult to detect the random number abnormality.

  In the hard random number abnormality detection technique disclosed in Patent Document 3, a plurality of hard random numbers are continuously acquired in a very short time and random number abnormality determination is performed. In order to determine that the random number is abnormal when both of 1 are not confirmed, an obvious random abnormality in which a hard random number of the same value is acquired twice or more is detected within the regular update time of the hard random number for one cycle. It is difficult. The hard random number abnormality detection techniques of Patent Documents 1 and 2 have the same problem.

  An object of the present invention is to easily and easily determine whether or not there is an abnormality in the hard random number generation circuit each time a random number acquisition condition is satisfied in a gaming machine.

The present invention has the following configuration. Note that the reference numerals show an example of the correspondence with the components shown in the drawings for the purpose of promoting the understanding of the present invention, and do not limit the technical scope of the present invention.
A gaming machine according to claim 1 is provided with a main control device (21, 21A) having a hard random number generation circuit (41) that periodically generates hard random numbers while being sequentially updated every first minute time (T1). In the machine (1), the main controller (21, 21A) sends a plurality (N) of hard random numbers from the hard random number generation circuit (41) at second minute time (T2) intervals when the random number acquisition condition is satisfied. It is determined whether or not the values of at least two hard random numbers among the random number acquiring means (21a) acquired continuously and the plurality (N) of hard random numbers acquired by the random number acquiring means (21a) match. When the random number abnormality determination means (21c, 21f) and the random number abnormality determination means (21c, 21f) determine that the values of at least two hard random numbers of the plurality of hard random numbers match, random number abnormality countermeasure processing is performed. It is characterized by having a random number abnormality countermeasure means (21d, 21g) to be executed.

  The gaming machine according to claim 2 is the game machine according to claim 1, wherein the random number obtaining means (21a) continuously obtains the plurality (N) of hard random numbers at the second minute time (T2) interval. T3) is configured to be shorter than the hard random number update time (T3) for one cycle in the hard random number generation circuit (41).

  The gaming machine according to claim 3 is the invention according to claim 1 or 2, wherein one of the hard random numbers (N) obtained by the random number acquisition means (21a) is used for lottery. It is also used as a hard random number.

  According to a fourth aspect of the present invention, in the invention of the third aspect, the lottery hard random number is a hard random number obtained first among the plurality (N) of hard random numbers.

  According to the gaming machine of the present invention, the random number acquisition unit continuously acquires a plurality of hard random numbers from the hard random number generation circuit when the random number acquisition condition is satisfied, and the random number abnormality determination unit includes the plurality of hard random numbers. Therefore, it is possible to easily and easily determine whether or not there is an abnormality in the hard random number generation circuit each time the random number acquisition condition is satisfied.

It is a front view of a pachinko gaming machine. It is a front view of the game board of a pachinko gaming machine. It is a block diagram of the control system of a pachinko gaming machine. It is a functional block diagram of a main controller. It is the block diagram which showed the structure of the hard random number generation circuit. It is a jackpot random number determination table. It is a flowchart of the main process which a main control apparatus performs. It is a flowchart of a power-off monitoring process. It is a flowchart of a timer interruption process. It is a flowchart of a start port SW process. It is a chart which shows each random number update time, the random number update time for 1 period, and the time between each random number acquisition. It is a time chart which shows the timing which produces | generates a hard random number, and acquires a hard random number continuously. It is a flowchart of a random number abnormality detection process. It is a flowchart of random number abnormality determination and countermeasure processing. FIG. 6 is a functional block diagram of a main control device according to a second embodiment. 7 is a flowchart executed by a main control device of Embodiment 2. 12 is a flowchart of random number abnormality determination / countermeasure processing according to the second embodiment.

  Hereinafter, modes for carrying out the present invention will be described based on examples.

  As shown in FIGS. 1 and 2, in the pachinko gaming machine 1, an open / close frame 2 is detachably attached to an outer frame attached to the game hall, and an open / close door 3 is detachably attached to the open / close frame 2. . A game board 4 is mounted on the open / close frame 2, and a game area 4 a is formed on the front side of the game board 4. A window 3a is formed in the opening / closing door 3, and a transparent plate 3b is attached to the window 3a, and the front side of the game area 4a is covered by the transparent plate 3b.

  The open / close door 3 is provided with a storage tray 5 for storing game balls below the window 3 a, an effect button 6 is mounted on the storage tray 5, and a launch handle 7 is mounted on the lower right side of the storage tray 5. ing. When the firing handle 7 is turned, the game balls introduced from the storage tray 5 to the launch position are launched, and when there are a plurality of game balls in the storage tray 5, the plurality of game balls are about 0. 0. Fired continuously at intervals of 6 seconds. The launched game ball is guided by the guide rail 8 and is thrown into the upper part of the game area 4a.

  As shown in FIGS. 2 and 3, the game board 4 includes a number of obstacle nails (not shown), a first start port 10, a second start port device 11, a gate 12, a grand prize opening device 13, and a plurality of general The winning opening 14, the center accessory 15, the image display 16, the movable accessory device 17, and the game display board 19 are mounted in the arrangement shown in FIG. 2, and the game control device 20 is mounted on the back side of the game board 4. .

  The first start opening 10 is provided with a first start opening SW10a for detecting a winning game ball, the gate 12 is provided with a gate SW 12a for detecting a passed game ball, and each general winning opening 14 is provided with a winning game. A general winning opening SW14a for detecting a ball is attached. “SW” means a switch.

  The second starter device 11 includes a second starter 11a, an opening / closing member 11b for opening / closing the second starter 11a, a second starter SW11c for detecting a game ball won in the second starter 11a, and an opening / closing member 11b. It has the 2nd starting port SOL11d (electricity | work SOL) to drive. “SOL” means a solenoid actuator. The opening / closing member 11b makes it impossible to win a game ball to the second start port 11a in the closed position, and allows the game ball to win the second start port 11a in the open position.

  The big prize opening device 13 includes a big prize opening 13a, an opening / closing member 13b for opening / closing the big prize opening 13a, a big winning opening SW13c for detecting a game ball won in the big prize opening 13a, and a big winning opening for opening / closing the opening / closing member 13b. It has SOL13d. The opening / closing member 13b makes it impossible to win a game ball to the big prize opening 13a in the closed position, and enables winning of the game ball to the big prize opening 13a in the open position.

  The center accessory 15 is provided in a size that occupies more than half of the game area 4a from the top to the center of the game board 4 so as to protrude forward from the front surface of the game board 4. The image display 16 and the movable accessory device 17 are attached to the camera.

  The game display board 19 includes a first special symbol indicator 19a, a second special symbol indicator 19b, a normal symbol indicator 19c, a first special symbol hold lamp 19d, a second special symbol hold lamp 19e, and a normal symbol hold lamp 19f. I have.

  On the first special symbol display 19a, the first special symbol is stopped and displayed after the symbol changes based on the winning of the game ball to the first starting port 10. On the second special symbol display 19b, the second special symbol is stopped and displayed after the symbol variation based on the winning of the game ball to the second starting port 11a. When the big hit symbol is stopped and displayed on the first or second special symbol indicator 19a or 19b, a big hit gaming state occurs, and the big prize opening device 13 opens and closes the opening / closing member 13b, and is normally closed. The grand prize opening 13a is opened and closed over a plurality of rounds.

  On the normal symbol display 19c, the normal symbol is stopped and displayed after the symbol changes based on the winning (passing) of the game ball to the gate 12. When the symbol is stopped and displayed on the normal symbol display 19c, an auxiliary game occurs, and the second starter device 11 opens and closes the opening and closing member 11b, and the normally closed second starter port 11a is set to 1 or Open and close multiple times.

  The first special symbol holding lamp 19d displays a maximum of four first holding numbers which are game balls won in the first starting port 10 and have not yet been used for symbol fluctuation in the first special symbol display 19a. The On the second special symbol holding lamp 19e, a maximum of four second holding numbers which are game balls won in the second starting port 11a and have not yet been used for symbol fluctuation in the second special symbol display 19b are displayed. The The normal symbol holding lamp 19f displays a maximum of four universal symbol holding numbers which are game balls won in the gate 12 and have not yet been used for symbol fluctuations in the normal symbol display 19c.

  By turning the launch handle 7, the game ball launched into the upper part of the game area 4a hits a plurality of obstacle nails and falls while changing direction, and any one of the winning holes 10, 11a, 13a, 14 When a prize is won, the game area 4a is discharged out of the game area 4a, and when it is not won in any of the winning openings 10, 11a, 13a, 14, it is finally formed at the lower end of the game area 4a. It is discharged out of the game area 4a from the out port 9.

  As shown in FIG. 3, the game control device 20 includes a main control device 21 that controls main game control, and a sub control device 25 that receives various commands from the main control device 21 and controls payout control and effect control. I have. The main control device 21 is a CPU that executes basic processing in accordance with the progress of game content on the game control board 22 based on the game control program, a ROM that stores the game control program, and a data work area when the CPU performs arithmetic processing. A computer having a functioning RAM and a hard random number generation circuit 41 are provided. The game control board 22 is connected to the board external information terminal board 23.

  A watchdog timer is attached to the CPU of the main controller 21. The watchdog timer has a function of monitoring whether or not the computer of the main control device 21 is operating normally according to the game control program. When an abnormality occurs in the game control program and the execution of the program is interrupted or stopped, or when only loop processing is repeatedly executed so that no other processing is executed after interrupting the execution of the program, When the timer count unit of the watchdog timer counts up during the standby state by the loop processing, the computer of the main control device 21 is forcibly initialized.

  The sub-control device 25 includes a payout control board 26, an effect control board 27, an image control board 28, and a lamp control board 29 each including a computer having a CPU, a ROM, and a RAM. The computer of the effect control board 27 further has a real time clock (RTC) as a time measuring means for measuring and outputting real time. The payout control board 26 is connected to the frame external information terminal board 24.

  The computer of the game control board 22 receives the ball detection signal from the first and second start openings SW10a, 11c, the gate SW12a, the big prize opening SW13c, the general prize opening SW14a and the control information from the payout control board 26, It controls the second start opening SOL11d, the big winning opening SOL13d, the symbol displays 19a to 19c, and the symbol holding lamps 19d to 19f, and controls the payout control board 26, the effect control board 27, and the board external information terminal board 23 to control information (games). Information).

  The computer of the payout control board 26 receives the control information from the game control board 22 and the ball detection signals from the payout ball detection SW31, the ball presence detection SW32, and the full tank detection SW33, and controls the payout motor 30 to receive a prize opening. For one winning game ball to 10, 11 a, 13 a, 14, the number of game balls set for each winning opening 10, 11 a, 13 a, 14 is paid out to the storage tray 5, and the game control board 22 and the outside for the frame Control information (payout information) is output to the information terminal board 24.

  The computer of the effect control board 27 receives the control information from the game control board 22 and the button operation signal from the effect button 6, outputs the control information to the image control board 28, and further controls from the image control board 28. In response to the information, the control information is output to the lamp control board 29.

  The computer of the image control board 28 receives the control information from the effect control board 27, controls the image display 16 and the speaker 34, and outputs the control information to the effect control board 27. The computer of the lamp control board 29 receives the control information from the effect control board 27, and synchronizes with the control of the image control board 28 mainly by the computer so that the frame lamp 35, the panel lamp 36, and the movable accessory device 17 are connected. Control.

  As shown in FIG. 4, the main control device 21 includes a random number acquisition unit 21a, a random number determination unit 21b, a random number abnormality determination unit 21c, a random number abnormality handling unit 21d, and a random number abnormality information output unit 21e, which are configured by the computer. In addition, a hard random number generation circuit 41 that periodically generates hard random numbers while being sequentially updated every minute time T1 (first minute time, for example, T1 = 0.067 μs) is provided separately from the computer.

  As shown in FIG. 5, the hard random number generation circuit 41 includes an oscillator 42 using a crystal resonator, a random number counter 43 that counts up based on a clock pulse of several MHz from the oscillator 42, and a CPU of the main control device 21. A D-type flip-flop 44 that latches a request signal from the D-type flip-flop 44 in synchronization with a clock pulse, and a buffer IC circuit 45 that reads the output value of the random number counter 43 in response to a change in the output value of the D-type flip-flop 44. It is configured to update the hard random number regardless of the operation clock of the computer of the main controller 21.

  The random number counter 43 is a counter IC capable of counting a counter value (random number value) of 1 to 65536 having a 16-bit configuration, and starts a count-up operation at the rising edge of the clock pulse from the oscillator 42.

  The D-type flip-flop 44 receives a clock pulse from the oscillator 42 via the NOT circuit 46 and reads and outputs a request signal from the CPU at the falling edge of the clock pulse from the oscillator 42. The request signal from the CPU is normally at the L level, but becomes the H level at the timing when the random number acquisition condition is satisfied in the processing of the CPU.

  The D-type flip-flop 44 reads the request signal every time the clock pulse from the oscillator 42 falls, but normally, since the request signal is at the L level, the output value of the D-type flip-flop 44 also remains at the L level. . On the other hand, when the request signal changes to the H level, the output of the D-type flip-flop 44 changes from the L level to the H level at the falling edge of the clock pulse. In response to this, the buffer IC circuit 45 outputs the value of the random number counter 43 to the random number acquisition unit 21a as a hard random number value.

  The random number acquisition unit 21a receives a plurality of N (for example, N = 3) hard random numbers from the hard random number generation circuit 41 when the random number acquisition condition is satisfied at intervals of a minute time T2 (second minute time: for example, T2 = 15.6 μs). Get continuously with. A plurality of N hard random numbers are acquired as abnormality detecting hard random numbers. One hard random number out of the plurality of N abnormality detecting hard random numbers is also used as a lottery hard random number. The random number acquisition condition is satisfied when the number of first or second reserved balls is less than 4 for each winning game ball to the first or second starting port 10 or 11a.

  The random number determination unit 21b determines whether or not the lottery hard random number acquired by the random number acquisition unit 21a is successful. In this case, it is determined whether or not the lottery hard random number acquired by the random number acquisition unit 21a is a preset jackpot specific value. As shown in FIG. 6, for example, in the normal / short-time gaming state, 205 big hit specific values are set, and the number of big hit specific values with respect to the total number of hard random numbers (65535) that can be generated by the hard random number generation circuit 41. Is about 1/320. In other words, the jackpot determination is made with a probability of about 1/320.

  Further, in the probability variation / latent probability gaming state, 2050 jackpot specific values are set, and the ratio of the number of jackpot specific values to the total number of hard random numbers that can be generated by the hard random number generation circuit 41 is about 10/320. In other words, the jackpot determination is made with a probability of about 10/320. In all gaming states, a small hit specific value is set at a ratio of about 3/320 with respect to the total number of hard random numbers that can be generated by the hard random number generation circuit 41, that is, a small value with a probability of about 3/320. It becomes a hit judgment. In the case of a small hit, a small hit game is generated in which the big winning opening 13a is opened and closed several times in a minute time.

  Here, when the big hit determination is made, any one of a probability variation symbol, a rush symbol symbol, a latent probability symbol, and a short time symbol symbol is determined by lottery as a big hit symbol, and the big hit symbol is displayed on the special symbol indicator 19a or 19b. The stop will be displayed. Then, after the big hit game, the game changes to the probability change gaming state in the case of the probability variation symbol and the probability symbol, shifts to the time reduction gaming state in the case of the short time symbol, and shifts to the latent probability gaming state in the case of the latent probability symbol. In the short-time gaming state, after the special symbol variation is performed 100 times (or several tens of times), the normal gaming state is entered. In the case of a small hit, the current gaming state is maintained. In the probability variation gaming state and the short-time gaming state, the rate of occurrence of auxiliary games is higher than in the latent probability gaming state and the normal gaming state, and in each auxiliary game, a game ball is won at the second starting port 11a. Is more likely to do.

  The random number abnormality determination unit 21c determines whether or not the values of at least two hard random numbers among a plurality of N hard random numbers acquired by the random number acquisition unit 21a match. Since this random number acquisition and abnormality determination are executed every time the random number acquisition condition is satisfied, a plurality of N abnormality detection hard random number acquisitions and abnormality determinations are performed many times during the game, and a hard random number generation circuit In 41, it is possible to improve the reliability of the determination as to whether or not all of a plurality (65535) of hard random numbers for one cycle have been updated normally.

  The random number abnormality handling unit 21d determines that the random number abnormality determination unit 21c determines that the values of at least two hard random numbers among a plurality of N hard random numbers match, that is, normal update of one cycle of hard random numbers. If a hard random number of the same value is acquired twice or more within the time, random number abnormality handling processing is executed. As random number error handling processing, the main processing execution is immediately interrupted, and only the processing to reset (clear) the watchdog timer is repeated so that the watchdog timer does not count up while the main processing execution is interrupted. Thus, execution of other processes in the main process is prohibited.

  The random number abnormality information output unit 21e generates random number abnormality information based on the determination result of the random number abnormality determination unit 21c, that is, when the hard random number generation circuit 41 has not updated all the hard random numbers for one cycle. (Random number abnormality command) is output to the sub-control device 25.

  The sub control device 25 has a random number abnormality handling unit 25a. When the random number abnormality handling unit 25a receives random number abnormality information from the main control device 21, the notification device 47 (the image display 16, the speaker 34, the frame lamp 35). And at least one of the panel lamps 36), the hard random number generation circuit 41 notifies the notification device 47 of a random number abnormality in which the lottery hard random number is not normally generated. As a specific random number abnormality notification, a random number abnormality warning display indicating that an abnormality has occurred in the hard random number generation circuit 41 is displayed on the image display 16.

Next, various processes executed by the main control device 21 will be described based on flowcharts. In the figure, reference sign Si (i = 1, 2,...) Indicates each step.
As shown in FIG. 7, the main process is started when the power is turned on. In this main process, first, the system waits for 1000 ms (S1), and thereafter, permission to access the RAM is set (S2). It is determined whether or not is turned on (S3).

  When the RAM clear SW is not turned on (S3; No), it is determined whether the backup flag is ON (S4). When the backup flag is ON (S4; Yes), it is determined whether the checksum is normal ( S5) When the checksum is normal (S5; Yes), recovery processing is executed (S6), and the process proceeds to S10.

  On the other hand, when the determination at S3 is Yes, the determination at S4 is No, or the determination at S5 is No, RAM clear (S7), work area setting at the time of clear (S8), and peripheral part initial setting (S9) are sequentially executed. Then, the process proceeds to S10. Here, the peripheral portions are the payout control board 26, the effect control board 27, and the like. The peripheral initial setting is executed by transmitting an initial setting command for instructing execution of the initial setting to the computers of the control boards 26 and 27.

  In S10, a timer counter (CTC) cycle (for example, 4 ms) is set. The timer interrupt process is executed using the period set in S10. Next, in response to the result of the random number abnormality detection process executed in the timer interrupt process, the random number abnormality determination / handling process is executed (S11).

  After executing the random number abnormality determination / handling process in S11, the power shutdown monitoring process (S12), the fluctuation pattern random number update process (S13), the timer interrupt process prohibition setting process (S14), the initial value random number update process (S15), the timer The interrupt permission setting process (S16) is sequentially executed, and the process returns to S11. Thereafter, the processes of S11 to S15 are repeatedly executed.

  As shown in FIG. 8, in the power-off monitoring process of S12, first, the setting of prohibition of interruption of the timer interruption process is executed (S21), and then it is determined whether or not the power is cut off (S22). If the power is not shut off (S22; No), the timer interrupt permission is set (S23), and the process returns to S13. On the other hand, when the power is cut off (S22; Yes), the output port clear (S24), checksum creation / storage (S25), backup flag ON (S26), RAM access prohibition setting (S27) are executed in sequence. Become.

  Next, the timer interrupt process will be described. The timer interrupt process is interrupted and executed every minute time in the main process at the period set in the CTC period setting in S10 of FIG. As shown in FIG. 9, in the timer interrupt process, random number update process (S31), switch process (S32), symbol process (S33), electric accessory process (S34), prize ball process (S35), output process ( S36) is sequentially executed and the process returns.

  As shown in FIG. 10, in the start port SW process of S32, when the first start port SW10a is on, that is, when a winning of a game ball to the first start port 10 is detected (S41; Yes), the first hold When the number U1 is less than 4 (S42; Yes), the first holding number U1 is added to U1 + 1 (S43), and a plurality of N (N = 3) first hard random numbers A, B and C are continuously acquired at a minute time T2 (15.6 μs) interval (S44 to S46).

  As shown in FIGS. 11 and 12, in the hard random number generation circuit 41, hard random numbers are sequentially updated every first minute time T1 (T1 = 0.0666668 μs) in the range of 1 to 65535, and a plurality of N ( The update time T3 (T1 × N) for one cycle in which all of the hard random numbers (N = 65535) are updated is 4369.1 μs (= 0.0666668 × 65535). The time between each hard random number acquisition (second minute time T2) when the random number acquisition unit 21a continuously acquires a plurality of N (N = 3) hard random numbers is 15.6 μs, and this second The minute time T2 is configured to be shorter than the hard random number update time T3 for one cycle (T3> T2).

  In S44 to S46, the time T4 for continuously obtaining the three first hard random numbers A, B, and C is 46.8 μs (15.6 μs × 3), and is equivalent to one cycle in the hard random number generation circuit 41. If the hard random number generation circuit 41 is normal, the hard random number generation cycle 41 is set to be shorter than the hard random number update time T3 (4369.1 μs) (T3> T4 (T2 × N)). The values of the three first hard random numbers A, B, and C acquired within the minute update time T3 are different.

  After the three first hard random numbers A, B, and C are acquired and stored, random number abnormality detection processing is executed (S47). As shown in FIG. 13, in the random number abnormality detection process, first, the values of the three acquired first hard random numbers A, B, and C are read (S57). Here, among the three first hard random numbers, the first hard random number A acquired and stored first is used as a hard random number for lottery, and all the first hard random numbers A, B, and C are abnormal. Used as a hard random number for detection.

  Next, in S58, it is determined whether or not the values of at least two first hard random numbers A, B, and C of the three abnormality detection first hard random numbers match. If the determination in S58 is Yes, The random number abnormality flag is turned on (S60). On the other hand, if the determination in S58 is No, the random number abnormality flag is turned off (S59). After S59 or S60 is executed, the random number abnormality detection process is terminated and the process returns.

  In the start port SW process of FIG. 10, after the random number abnormality detection process of S47, a first hold number increase command is set (S48). Next, when the second start port SW11c is not on, that is, when the winning of the game ball to the second start port 11a is not detected (S49; No), or when the second reserved number U2 is not less than 4 (S50; No), the start port SW process is terminated and the process returns. After that, based on the random number abnormality detection process in the timer interrupt process, the first hard random number abnormality determination and handling process of S11 shown in FIG. 14 is executed in the main process of FIG.

  On the other hand, in the start port SW process, when the winning of the game ball to the first start port 10a is not detected in S41 (S41; No), or when the first holding number U1 is not less than 4 (S42; No), the process proceeds to S49. If the game ball winning to the second starting port 11a is detected (S49; Yes), if the second hold number U2 is less than 4 (S50; Yes), the second hold number U2 becomes U2 + 1. Addition is performed (S51), and a plurality (three) of second hard random numbers A, B, and C are continuously acquired from the hard random number generation circuit 41 at minute time intervals (S52 to S54). Here, among the plurality (three) of second hard random numbers, the second hard random number A acquired and stored first is used as a lottery hard random number, and all the second hard random numbers A, B, and C are used. Is used as a hard random number for anomaly detection.

  Next, for the second hard random numbers A, B, and C for abnormality detection, the random number abnormality detection process similar to S47 is executed (S55), then the second hold number increase command is set (S56), and the start port Ends the SW process and returns. After that, based on the random number abnormality detection process in the timer interrupt process, the second hard random number abnormality determination and handling process of S11 shown in FIG. 14 is executed in the main process of FIG. The commands set in S48 and S56 and the commands set in other steps are transmitted to the effect control board 27 by the output process of S36 in the timer interrupt process.

  As shown in FIG. 14, in the random number abnormality determination / handling process of S11 in the main process of FIG. 7, it is determined whether or not the random number abnormality flag is ON as a detection result by the random number abnormality detection process (S61). When the random number abnormality flag is OFF (S61; No), that is, when the hard random number generation circuit 41 is normal, the main process is continued (S62) and the process returns. That is, the process after S11 of the main process is executed.

  On the other hand, if the random number abnormality flag is ON (S61; Yes), that is, if the hard random number generation circuit 41 is abnormal, a random number abnormality command is output to the sub-control device 25 (production control board 28) (S63), and the timer Interrupt permission prohibition of interrupt processing is set (S64). Subsequently, as various processes necessary for shutting down the power, output port clear (S65), checksum creation / storage (S66), backup flag ON (S67) After the RAM access prohibition setting (S68) is sequentially executed, the watchdog timer reset process is repeatedly executed (S69). In this state, when the power is turned off and then turned on, the game is resumed from the time when the game is interrupted based on the backup information (game information) stored when the hard random number generation circuit 41 detects an abnormality (when the main process is interrupted). Is done.

The operational effects of the pachinko gaming machine 1 described above will be described.
Each time a game ball wins the first or second starting port 10 or 11a, three random numbers including hard random numbers for lottery are continuously generated by the random number acquisition unit 21a at a second minute time interval by the random number acquisition unit 21a. Since the random number abnormality determination unit 21 determines whether or not the values of at least two of the three hard random numbers A, B, and C for abnormality detection match, the hard random number generation circuit The presence / absence of 41 abnormalities can be easily and easily determined. In addition, the number of times of random number abnormality determination can be increased by performing hard random number acquisition and abnormality determination many times during the game, thereby increasing the reliability of the random number abnormality determination of the hard random number generation circuit 41. .

  When the random number abnormality determination unit 21 determines that at least two hard random numbers (A and B, or A and C, or B and C) among the three abnormality detection hard random numbers A, B, and C match, Since the random number abnormality handling unit 21d executes the random number abnormality handling process, it is possible to reliably deal with the abnormality of the hard random number generation circuit 41 in which the hard random number is not normally generated.

  The time T2 (T2 = 15.6 μs) between the hard random number acquisition times when the random number acquisition unit 21a continuously acquires three hard random numbers is the update time of the hard random number generation circuit 41 for one cycle. It is configured to be shorter than T3 (T3 = 4369.1 μs), and a time T4 (T2 × 3) in which the random number acquisition unit 21a continuously acquires three hard random numbers is 1 in the hard random number generation circuit 41. Since it is configured to be shorter than the hard random number update time T3 for one cycle, it is possible to easily and easily detect the presence or absence of abnormality in the hard random number generation circuit 41 within the update time T3 for one cycle.

  Since one of the three hard random numbers continuously acquired from the hard random number generation circuit 41 by the random number acquisition unit 21a is also used as a hard random number for lottery, acquisition of a hard random number for lottery in the start port SW process There is no need to provide a process, and a hard random number for abnormality detection and a hard random number acquisition process for lottery can be efficiently performed.

  Since the random number abnormality handling unit 21d suspends the execution of the main process as the random number abnormality handling process when the abnormality in the hard random number generation circuit 41 is detected, the abnormality in the hard random number generation circuit 41 is detected. As soon as it occurs, the game can be stopped and the abnormality can be dealt with quickly. In addition, when an abnormality occurs in the hard random number generation circuit 41, it is possible to prevent other game processing (such as timer interrupt processing) from being executed.

  Further, as the random number abnormality handling process, only the process of resetting (clearing) the watchdog timer is repeatedly performed so that the watchdog timer does not count up while the execution of the main process is interrupted. The computer is not forcibly initialized, and the image display 16 can be prevented from executing initialization display (color bar display), and the player's distrust of the internal abnormality of the pachinko gaming machine 1 can be prevented. Can be suppressed.

  Next, a second embodiment in which the first embodiment is partially changed will be described. Note that description of substantially the same configuration as that of the first embodiment is omitted.

  As shown in FIG. 15, the main control device 21A includes a random number acquisition unit 21a, a random number determination unit 21b, a random number abnormality determination unit 21f, a random number abnormality handling unit 21g, and a random number abnormality information output unit 21e configured by the computer. In addition, a hard random number generation circuit 41 is provided separately from the computer.

  The hard random number generation circuit 41 includes a random number abnormality detection unit 41a, and the random number abnormality detection unit 41a includes one cycle within a set period Px including an update time required to generate a plurality of hard random numbers for one cycle. Detect whether all the hard random numbers of minutes have been generated.

  The random number anomaly detection unit 41a stores in advance the information of all hard random numbers 1 to 65535 in its memory, erases (resets) the information of the sequentially generated hard random numbers, and finally all the hardware random numbers When the random number information is erased, it is detected that all of a plurality of hard random numbers for one cycle have been generated. If not, at least one of the plurality of hard random numbers for one cycle has not been generated. Is detected.

  When all of a plurality of hard random numbers for one cycle are generated as a detection result by the random number abnormality detection unit 41a, the random number abnormality flag is turned OFF, and at least one of the plurality of hard random numbers is not generated The random number abnormality flag is turned ON.

  The setting period Px is the power-on period between immediately after power-on in the main process starting from power-on executed by the main controller 21A and until the interrupt permission of the first timer interrupt process to enter the game operation executable state is set. Included in the initial period. Specifically, the setting period Px is a period of 1000 ms, and is set when the hard random number generation circuit 41 is started immediately after the power is turned on. In the hard random number generation circuit 41, the random number abnormality detection unit 41a executes random number abnormality detection processing during a set period Px of 1000ms after the activation of the hard random number generation circuit 41 in the power-on initial period.

  The random number abnormality determination unit 21f combines a function of determining a random number abnormality based on the hard random number acquired by the random number acquisition unit 21a and a random number abnormality based on a detection result by the hard random number abnormality detection unit 41a of the hard random number generation circuit 41. . The random number abnormality determination unit 21a determines whether or not the detection result by the random number abnormality detection unit 41a of the hard random number generation circuit 41, that is, whether the hard random number generation circuit 41 has generated all of a plurality of hard random numbers for one cycle, Specifically, the determination is made by a random number abnormality flag.

  The random number abnormality handling unit 21g executes the random number abnormality handling process during the power-on initial period in the main process based on the determination result of the random number abnormality determination unit 21c, and further, based on the determination result of the random number abnormality determination unit 21c. Execute random number error handling processing while executing loop processing.

Next, processing executed by the main control device 21A will be described based on a flowchart. In each process, Si (i = 1A, 2,...) Indicates each step.
As shown in FIG. 16, the main process is started by turning on the power. In this main process, first, immediately after the power is turned on, the random number abnormality determination / handling process is executed (S1A).

  As shown in FIG. 17, in the random number abnormality determination / handling process of S1A, first, 1000 ms is set to the wait timer tw (S71), and then the hard random number generation circuit 41 is activated (S72).

  In the hard random number generation circuit 41, the random number abnormality detection unit 41a starts the random number detection process from the time of activation, and then, within the set period Px including the hard random number update time T3 for one cycle at the shortest, When the detection result of whether or not all of the plurality of hard random numbers have been generated is derived and all of the plurality of hard random numbers for one cycle are generated, the random number abnormality flag is turned off and the plurality of one cycle is generated. If at least one of the hard random numbers is not generated, the random number abnormality flag is turned ON.

  Subsequent timing of the wait timer tw is started after S72 (S73). In S74, it is determined whether or not tw = 0. If tw = 0 is not satisfied (S74; No), the subtraction timing process is continued until tw = 0. Repeatedly executed. In the meantime, the random number abnormality detection processing by the random number abnormality detection unit 41a is completed. If the determination in S74 is Yes, it is next determined whether or not the random number abnormality flag is read and ON (S75). When the random number abnormality flag is OFF (S75; No), that is, when all of the plurality of hard random numbers are generated, the main process is continued (S76) and the process returns. That is, the process after S2 of the main process is executed.

  On the other hand, if the random number abnormality flag is ON (S75; Yes), that is, if at least one of a plurality of hard random numbers is not generated, a random number abnormality command is output to the sub-control device 25 (production control board 28), and the main The process is interrupted (S78), and the process of resetting the count value of the watchdog timer that started counting simultaneously with the start of the main process is repeatedly executed (S79). In this state, if the power is turned off and then turned on, the game is resumed.

  In the main process of FIG. 16, after the random number abnormality determination / handling process of S1A, that is, when the determination of S75 is No, next, the processes of S2 to S16 are executed as in the first embodiment.

  As described above, since the random number abnormality determination / handling process is executed in the main process in the initial period of power-on, the presence or absence of abnormality in the hard random number generation circuit 41 can be detected early and reliably immediately after the power is turned on. In addition, the same effects as those of the first embodiment are obtained.

  Since only the process of resetting the watchdog timer is repeatedly executed as the random number abnormality handling process, and the execution of the main process is interrupted, the game can be stopped immediately when an abnormality occurs in the hard random number generation circuit 41 and the hard random number is also generated. An abnormality in the generation circuit 41 can be dealt with quickly. In addition, the same effects as those of the first embodiment are obtained.

The said Example can be changed as follows.
(1) In the embodiment, the random number acquisition unit 21a is configured to acquire three hard random numbers from the hard random number generation circuit 41, but the second minute time T2 within the hard random number update time T3 for one cycle. You may comprise so that the hard random number of 2 pieces or 4 or more and less than 280 pieces (T3 / T2) may be acquired at intervals. In the case of four or more, the reliability of the random number abnormality determination of the hard random number generation circuit 41 can be increased by increasing the number of acquired hard random numbers.

(2) In the embodiment, one of a plurality of N hard random numbers is also used as a lottery hard random number, but one lottery hard random number (first or second hard random number A) and a plurality ( You may make it acquire the hard random number for abnormality detection of 1st or 2nd hard random numbers B and C), respectively. That is, one abnormality detection hard random number may not be used as a lottery hard random number.

(3) In the embodiment, for each winning game ball to the first or second starting port 10 or 11a, a hard random number is obtained when the first or second reserved ball number is less than 4. However, a hard random number may be acquired even when the number of first or second reserved balls is four for each winning game ball to the first or second starting port 10 or 11a. In this case, however, one hard random number is not used as a lottery hard random number. That is, the big hit lottery is not determined for the fourth hard random number. As a result, a hard random number generation circuit 41 is obtained by acquiring a hard random number for each game ball winning in the first or second starting port 10 or 11a even if the number of the first or second reserved balls is four. Thus, the reliability of the random number abnormality determination of the hard random number generation circuit 41 can be further increased.

(4) In the second embodiment, the S1A random number abnormality determination / handling process in the main process is configured to be executed immediately after the start of the main process (immediately after the power is turned on). Any step before the CTC cycle setting may be executed after any step.

(5) As a condition for obtaining random numbers, in addition to winning the game ball to the first or second starting port 10 or 11a, a plurality of N hard random numbers are used when winning the game ball to the general winning port 14. You may make it acquire. However, none of the plurality of N hard random numbers is used as a lottery hard random number.

(6) As a condition for establishing random number acquisition, in addition to the conditions described in the embodiments, a plurality of (N) hard random numbers may be acquired from the hard random number generation circuit 41 at predetermined time intervals. However, none of the plurality of N hard random numbers is used as a lottery hard random number.

(7) In addition, various modifications can be added without departing from the scope of the present invention. The present invention can be applied to various pachinko gaming machines, slot machines other than pachinko gaming machines, and other various gaming machines.

T1 First minute time T2 Second minute time T3 Hard random number update time T4 Time for continuously acquiring a plurality of hard random numbers 1 Pachinko gaming machine 21, 21A Main controller 21a Random number acquisition unit 21c, 21f Random number abnormality determination unit 21d, 21g Random number abnormality handling unit 41 Hard random number generation circuit

Claims (4)

In a gaming machine provided with a main controller having a hard random number generation circuit that periodically generates hard random numbers while sequentially updating each first minute time,
The main controller is
Random number acquisition means for continuously acquiring a plurality of hard random numbers from the hard random number generation circuit at a second minute time interval when a random number acquisition condition is satisfied;
Random number abnormality determining means for determining whether or not the values of at least two hard random numbers among the plurality of hard random numbers acquired by the random number acquiring means match;
A random number abnormality coping means for executing a random number abnormality coping process when the random number abnormality judging means judges that the values of at least two hard random numbers of the plurality of hard random numbers match. Machine.   The time for the random number acquisition means to continuously acquire the plurality of hard random numbers at the second minute time interval is configured to be shorter than the update time of one cycle of hard random numbers in the hard random number generation circuit. The gaming machine according to claim 1, wherein:   3. The gaming machine according to claim 1, wherein one of the plurality of hard random numbers continuously acquired by the random number acquisition unit is used as a lottery hard random number.   4. The gaming machine according to claim 3, wherein the lottery hard random number is a hard random number acquired first among the plurality of hard random numbers.

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