JP2005080669A - Game machine, and method and program for preventing illegal behavior in game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent illegal behavior by accelerating error notification and confirming work of reset in work for performing setting change of a game machine. <P>SOLUTION: The game machine is provided with a main board 1 which performs internal drawing and prize-winning judgment when operated by a player and which controls paying out of game mediums according to prize-winning. The game machine is further provided with: a first storage part 1b for storing setting information about the internal operation of the main board 1; a setting switch 83 for changing the setting information; a second storage part 1c for storing selected new setting information when the setting switch requests setting change; a comparing part 1d for comparing the setting information in the second storage part with that in the first storage part; and a game impossible state setting part 1e for setting the game machine to be in the state of rejecting a game based on the output of the comparing part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a gaming machine such as a slot machine, a fraud prevention method for the gaming machine, and a program.

  A gaming machine such as a slot machine allows a player to enjoy a game by inserting a predetermined number of medals into the gaming machine. The medals necessary for the game can be borrowed with a medal lending machine provided in the game hall, and the game can be started by inserting it into the medal slot of a desired gaming machine.

  The gaming machine basically pays out medals when the pattern is complete, but whether the pattern is complete or not depends on the result of a lottery by an internal computer. Various prizes, such as big bonuses, regular bonuses, and small roles, also follow the results of internal computer lottery. The lottery process can be set within a predetermined range, and setting work is performed by the store in a hall or the like where a gaming machine is installed. The setting change was performed by a procedure such as opening a door of the gaming machine, turning on a setting key switch provided in the power supply unit, and performing a predetermined operation such as pressing the setting change switch.

  A small part of the players performed a dishonest act (so-called goto act). For example, there has been a person who illegally changes the setting of the gaming machine to one advantageous for himself by performing the setting operation illegally. The door of the gaming machine is provided with a key so that it can not be easily opened and closed, and a key is also necessary for the operation of the setting key switch, but those who perform cheating drill holes in the door, It seems that the setting is performed illegally by adding work to the wiring of the setting key switch.

  As described above, there is no security measure other than the mechanism of the key in the conventional gaming machine. Anyone who knows the procedure for changing the predetermined setting could perform the illegal setting.

  An object of the present invention is to provide a gaming machine, a fraud prevention method for the gaming machine, and a program that can prevent such cheating by the intention of the store.

  The present invention stores a setting information related to an internal operation of the control unit in a gaming machine including a control unit that performs internal lottery and winning determination in response to a player's operation and performs payout control of game media in accordance with winning. A first storage unit; a setting switch for changing the setting information; a second storage unit for storing new setting information selected when a setting change request is received from the setting switch; A comparison unit that compares setting information in the storage unit with setting information in the first storage unit, and an inoperable state setting unit that sets a gaming machine in a state in which no game is accepted based on the output of the comparison unit. is there.

  Preferably, a reset unit that returns the gaming machine to a state of accepting a game, and when the reset unit returns the gaming machine to a state of accepting a game, setting information in the second storage unit is stored in the first memory Sent to the store and stored.

  The first storage unit and the second storage unit are configured to retain the stored contents even when the power is cut off (for example, provided with a battery backup or a nonvolatile memory such as an EEPROM), and the first storage unit If the contents of the storage unit and the second storage unit are not lost even when the power is turned off, the comparison unit displays the setting information of the second storage unit as the setting information of the first storage unit when the power is turned on. In comparison with the above, the game impossible state setting unit may set the gaming machine in a state in which a game is not accepted when the comparison result of the comparison unit does not match.

  You may make it provide the error alerting | reporting part which alert | reports an error, when a game machine is set to the state which does not accept a game.

This invention is a fraud prevention method in a gaming machine comprising a control unit that performs internal lottery and winning determination in response to a player's operation and performs payout control of gaming media according to winning,
A first step of storing setting information related to the internal operation of the control unit;
A second step of selecting new setting information when receiving a setting change request regarding the internal operation of the control unit;
A third step of comparing the new setting information of the second step with the current setting information stored in the first step;
And a fourth step of setting the gaming machine so as not to accept a game when the comparison result is inconsistent.

Returning the gaming machine to a state of accepting a game when receiving a reset signal;
Storing the new setting information as current setting information.

Informing the error when the comparison result of the third step is inconsistent;
A step of continuing a state in which no game is accepted unless the reset signal is received.

  A comparison may be made when the power is turned on, and a game may not be accepted if they do not match.

The present invention is a control program for a gaming machine that includes a control unit that performs internal lottery and winning determination in response to a player's operation and performs payout control of gaming media according to winning,
A first step of storing setting information related to the internal operation of the control unit;
A second step of selecting new setting information when receiving a setting change request regarding the internal operation of the control unit;
A third step of comparing the new setting information of the second step with the current setting information stored in the first step;
A program for causing a computer to execute a fourth step of setting a gaming machine in a state in which a game is not accepted when the comparison result is inconsistent.

The program according to the present invention is recorded on a recording medium, for example.
Examples of the medium include EPROM devices, flash memory devices, flexible disks, hard disks, magnetic tapes, magneto-optical disks, CDs (including CD-ROMs and Video-CDs), DVDs (DVD-Videos, DVD-ROMs, DVD-s). RAM), ROM cartridge, RAM memory cartridge with battery backup, flash memory cartridge, nonvolatile RAM cartridge, and the like.

  In addition, a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line is included. The Internet is also included in the communication medium here.

  A medium is a medium in which information (mainly digital data, a program) is recorded by some physical means, and allows a processing device such as a computer or a dedicated processor to perform a predetermined function. is there.

  According to the present invention, the new setting value is compared with the current setting value, and the game is accepted when they match, so that a procedure such as a reset operation is required at the time of changing the setting, thereby making it difficult to perform an illegal act. Therefore, unauthorized setting value changes can be prevented.

Embodiment 1 of the Invention
A gaming machine according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a gaming machine (also called a slot machine or a revolving gaming machine).
A player who wants to enjoy a game with the slot machine 10 first borrows a medal as a game medium from a medal lending machine (not shown) or the like, and inserts a medal directly into the medal insertion slot 100 of the medal insertion device. The medal slot 100 is provided at a substantially central height in front of the slot machine 10.

  The slot machine 10 has a square box-shaped housing 11. A square window-like display window 12 facing the player side is formed at the center and upper part of the casing 11. A symbol display window 13 through which the symbols 61 of the three rotary reels 40 can be seen is formed at the center of the display window 12 at the center. The bet switch 16 is a switch located below the rotary reel 40, and reduces the number of stored medals that are continuously inserted into the medal insertion slot 100 and stored to replace the medal insertion. The settlement switch 17 is a switch located obliquely below the rotating reel, and pays out the stored inserted medal. The start switch 30 is a lever positioned obliquely below the rotary reel 40 and starts driving the reel unit 60 on condition that a game medal is inserted or the bet switch 16 is inserted. The stop switch 50 is for stopping the driving of the reel unit 60. The reel unit 60 is composed of three rotating reels 40. Each rotary reel 40 includes a rotary drum made of synthetic resin and a tape-like reel tape 42 attached around the rotary drum. A plurality of (for example, 21) symbols 61 are displayed on the outer peripheral surface of the reel tape 42. Reference numeral 62 denotes a liquid crystal display unit for performing various effects.

  Inside the slot machine 10, a control device for controlling the overall operation of the slot machine 10 is incorporated as will be described later. The control device is configured around a CPU and includes a ROM, a RAM, an I / O, and the like. Then, the CPU (processing unit) is operated by reading the program stored in the ROM (storage unit) in response to the player's operation. Specifically, the CPU operates the start switch 30 and the stop switch 50. Based on this, the rotation and stop of the rotary reel 40 are controlled, and the display of lamps, speakers, and the like are controlled. Temporary data necessary for the operation of the CPU is RAM (storage unit: RAM is generally a volatile memory, and data is lost in principle when the power is turned off. A backup power source such as a battery may be prepared. In this case, data is not lost even if the power is cut off). The CPU performs a predetermined operation in accordance with a program recorded in the ROM, records temporary data necessary for processing in the RAM, and reads out and refers to the recorded data as necessary.

  The start switch 30 is a lever that is positioned obliquely below the rotary reel 40 as described above. The start switch 30 can be obtained on the condition that a game medal is inserted or the bet switch 16 is inserted or according to a winning determination. "Replay)" is to start driving the reel unit 60 on condition that a predetermined time has elapsed since the previous game.

  The stop switch 50 is for stopping the driving of the reel unit 60 as described above. Specifically, the stop switch 50 includes three switches corresponding to each rotary reel 40, and one stop switch 50 is disposed below each rotary reel 40. The operation of the stop switch 50 corresponding to the rotating reel 40 is set to stop the rotation of the corresponding rotating reel 40.

  When the start switch 30 is operated on the condition that the medal is inserted or the bet switch 16 is inserted, or on the condition that a predetermined time elapses from the previous game at the time of the “replay”, the reel unit 60 is driven, and the three The rotary reel 40 starts to rotate. Thereafter, when one of the stop switches 50 is operated, the rotation of the corresponding rotary reel 40 is stopped. When all three stop switches 50 are operated, the rotation of the three rotary reels 40 is stopped. At this time, if a predetermined symbol 61 on the effective pay line of the display window 13 stops, it is determined that the winning is made, and a predetermined number of medals are paid out through a hopper unit (not shown). In addition, you may credit instead of paying out medals.

  When the control device controls the rotation and stop of the rotary reel 40 based on the operation of the start switch 30 and the stop switch 50, the control device determines whether or not a winning qualification has been obtained based on a predetermined internal lottery probability. A winning lottery means for performing a lottery. A winning flag is established when the internal lottery result by the winning lottery means is a win, and the winning combination is made on the condition that the combination of the stopped symbols of the rotating reel 40 matches a predetermined winning symbol while the winning flag is established. Is determined, and the player is given a profit such as paying out medals or a special game advantageous to the player.

  FIG. 2 is a block diagram showing an electrical schematic structure of the slot machine 10. In this figure, the display about the power supply system is omitted. The slot machine 10 includes a main substrate 1 (first processing unit) and a sub-substrate 2 (second processing unit) that receives a command from the main substrate 1 and operates as a main processing device. At least the main substrate 1 is accommodated inside the case so that it cannot be contacted from the outside, and a sealing process is performed so that traces remain when the substrates are removed.

  The main board 1 is for performing an internal lottery in response to a player's operation, and processing such as reel rotation / stop and medal payout. The main board 1 includes a CPU that performs a control operation according to a preset program, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like. As described above, in this gaming machine, a backup power source such as a battery is prepared for part or all of the RAM, and in this case, data is not lost even if the power is turned off.

  The main board 1 receives a request to change internal settings such as a winning probability from a setting key switch and a setting switch / reset switch 83 provided on a panel of a power supply unit (not shown), and changes the internal setting. A first storage unit 1b for storing the current setting value (a part of the RAM may be used), and a new setting value generated by the setting changing unit 1a. 2 a storage unit 1c (a part of the RAM may be used), a comparison unit 1d (implemented by software or hardware) that compares a new setting value with a current setting value, a new setting value and a current setting An inoperable state setting unit 1e (implemented by software or hardware), a setting switch / reset switch 83 or the like that stops the gaming machine when the values do not match Comprising a reset unit 1f for returning the gaming machine to the normal game state (which is implemented in software or hardware) from a reset switch 84 provided in the ackee receives a reset signal. The comparison unit 1d sends a mismatch signal to the inoperable state setting unit 1e and sends an error notification command to the sub-board 2.

  The sub-board 2 is for receiving a command signal from the main board 1 and notifying the result of the internal lottery and performing various effects. The sub-board 2 includes a CPU that performs a control operation according to a preset program corresponding to the command signal, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like.

  The sub board 2 includes an error notification section 2a (implemented by software or hardware) that receives an error notification command from the main board 1 and performs error notification.

  The sub-board 2 receives a command from the main board 1 and performs processing such as rendering according to the command. The flow of commands is only one from the main board 1 to the sub board 2, and conversely, no command or the like is issued from the sub board 2 to the main board 1.

  In order to count the number of medals paid out from the random number generator 20, start switch 30, stop switch 50, reel drive 70, reel position detection circuit 71, hopper drive 80, hopper 81 and hopper 81 on the main board 1. The medal detection unit 82, the setting switch / reset switch 83, and the reset switch 84 are connected. A peripheral board (local board) such as a control board 200 of the liquid crystal display device 62, a speaker 201, and an LED board 202 is connected to the sub board 2. Hereinafter, these peripheral substrates / devices except for the start switch 30 and the stop switch 50 will be described.

  The random number generation unit 20 has a random number generation function for generating a pseudo random number by updating the numerical values in a certain range at high speed, and a sampling function for extracting an arbitrary random number from the generated random numbers in response to the player's operation. It is to be prepared. As a specific example, it is composed of a counter and a latch.

  The reel driving unit 70 is a circuit that drives a stepping motor (not shown) that rotationally drives the three reels 40. Each stepping motor is subjected to 1-2 phase excitation by the reel drive circuit 70 and rotates once when a drive signal having a predetermined number of pulses is supplied.

  The reel position detection circuit 71 is provided in the vicinity of the reel 40, receives an output pulse signal from a photo interrupter (not shown) for detecting the rotation position of the reel 40, detects the rotation position of each of the three reels 40, and detects it. A signal is output. A photo interrupter (not shown) detects a shielding plate provided on each reel 40 and generates a reset pulse every time each reel 40 rotates once. This reset pulse is given to the CPU of the main board 1 via the reel position detection circuit 71. In the RAM of the main board 1, a count value corresponding to the rotation position within one rotation range is stored for each reel 40, and when the CPU receives the reset pulse, the count value formed in the RAM is stored. Clear to “0”. By this clearing process, the deviation generated between the movement display of each symbol and the rotation of each stepping motor is eliminated every rotation.

  The hopper driving unit 80 is a circuit that drives a motor of a hopper 81 that stores medals and pays out the number of medals corresponding to the designated winning.

  The medal detection unit 82 is for counting the number of medals paid out from the hopper 81. The CPU of the main board 1 stops driving by the hopper driving unit 80 when the actually paid out medal count value received from the medal detection unit 82 reaches the predetermined payout number data corresponding to the winning. Finish paying out. A predetermined number of medals are paid out to the player by the hopper driving circuit 80 and the medal detection unit 82 based on a winning obtained as a result of the game.

  The setting switch / reset switch 83 is provided on a panel of a power supply unit (not shown). The switch 83 serves as both a setting switch for selecting a setting value and a reset switch for canceling the error. The panel of the power supply unit is also provided with a setting key switch for setting the mode. The reset switch 84 is provided, for example, on a door key and is operated as the door is opened and closed.

The liquid crystal control board 200 is a circuit for driving the liquid crystal display unit 62.
The speaker 201 is for generating sound such as voice and sound effects.
The LED substrate 202 is a circuit for driving a display lamp and a back lamp (not shown).

  The liquid crystal display device 62 controlled by the liquid crystal control substrate 200 and the LED substrate 202 including the speaker 201 and the display lamp constitute an effect display device. This effect display device is for notifying a player of a prize or the like, or for teaching a user a specific small role during a certain game with some action during a so-called assist time (AT).

  The ROM of the main board 1 stores game processing procedures executed in the slot machine 10 as a sequence program, and stores a winning probability table, a symbol table, a winning symbol combination table, and the like. Has been. The winning probability table is divided so as to divide the random number extracted by the random number generation unit 20 into each winning mode, and the random number extracted from a certain range of numerical values generated by the random number generating unit 20 is assigned to each winning mode. The data to be partitioned into is stored. That is, the winning probability table has an area divided for each winning mode corresponding to the entire area of random numbers taken by the random number generator 20. For example, a range of 0 to a certain number is divided into a plurality, one division (area) is excluded, and the other division (area) is set as winning 1, winning 2,. The extracted random number data is collated with each of the winning determination area data divided for each winning mode in all areas corresponding to the random number generated from the random number generator 20, and the winning prize to which the extracted random number data belongs. The winning corresponding to the aspect is determined. For example, it is determined to which category (region) of the winning probability table the extracted random number value belongs, and if the category is, for example, a category of winning 1, it is determined as “winning 1”. Similarly, if the extracted random number value belongs to an out-of-range category (region) in the winning determination table 5, it is determined as “out”. For example, when the evaluation of the lottery process is out of place, it is set so that the predetermined symbols are not aligned (so-called kicking), and when winning, the predetermined symbols are aligned on the condition that the stop switch is pressed at a predetermined timing. (So-called pull-in). And if predetermined symbols are prepared, medals corresponding to winning symbols are paid out. Various winnings are generated under the probability according to the data setting of the winning probability table, and the symbol stop control is performed. For example, the operating hours of the day are not influenced by the skill of the player. The total medal payment rate is maintained almost constant.

  FIG. 3 is an internal setting process flowchart in the gaming machine according to the first embodiment of the present invention. Hereinafter, the operation of the gaming machine will be described based on this figure. In order to change the internal setting for selecting the winning probability table, the following procedure is required.

S1: A setting key switch (not shown) is turned on. The setting key switch is provided on a panel of a power source (not shown) (not shown). Normally off.

S2: A power switch (not shown) is turned on. As a result, power is supplied to the gaming machine. Since the setting key switch is on, the current setting value stored in the first storage unit 1b is displayed on a display unit (not shown) (for example, provided below the symbol display window 13).

S3: Select internal setting. The internal setting can be set, for example, in 1 to 6 stages. When the setting switch / reset switch 83 is operated, the displayed set value changes.

S4: Operate the start lever 30.

S5: As a result, the set value is confirmed, and the set value is stored in the second storage unit 1c.

S6: The setting key switch is turned off. The set value display on the display disappears. From the viewpoint of the operator, S1 to S6 are the same as the conventional procedure. In the conventional procedure, the new set value becomes effective immediately after the process of S6.

S7: The set value in the second storage unit 1c is compared with the set value in the first storage unit 1b. That is, the new set value is compared with the current set value.

S8: As a result of comparison, when the two match, the process proceeds to normal game processing. This is because the setting value has not been changed, and there is no fear of fraud even if the game is accepted as it is.

S9: As a result of the comparison, if the two do not match, error notification is performed. The error notification is performed by emitting or blinking all or a part of the lamps, LEDs, and liquid crystal display device 62 that can be controlled by the sub-board 2, or by lighting or displaying a specific pattern, or blowing a speaker. Alternatively, it is performed by arbitrarily combining the notification modes. Instead of or in addition to this, an error signal may be output to the outside. This error signal is received by the hall computer, for example, and an error is displayed on the hall monitoring device.

S10: Stop receiving the game together with the error notification, and disable the normal game. For example, the CPU is not stopped until a reset signal is received, or a switch signal other than reset is not read.

  The processes of S9: Error notification and S10: Normal game impossibility are executed not only when the fraudster changes the setting but also when the authorized administrator changes the setting.

S11: A reset operation is performed in order to cancel the error notification and the normal game impossible state. This state continues until it is reset. When a legitimate administrator changes the setting, only the setting switch / reset switch 83 is operated, which is not a burden. The reset operation is a normal operation and can be easily reset if an error occurs. On the other hand, since the fraudster cannot correctly access the setting switch / reset switch 83, it seems that he / she has a hard time dealing with it. Changing the setting is always troublesome, but it can be troublesome, but if you can't play games, the meaning of cheating is lost. From such a point, it is considered that the processes of S9 and S10 are effective for preventing fraud.

S12: When the reset operation is performed, the new setting value is stored in the first storage unit 1b to make the gaming machine in a normal state (a state in which the old and new setting values match), and the new setting value is validated. After that, the normal gaming state is entered.

  According to the gaming machine according to the first embodiment of the invention, it is possible to promote the confirmation work in the work of changing the setting of the gaming machine, and to prevent fraud.

  The gaming machine according to the first embodiment of the present invention compares the previous setting value with the current setting value in the conventional setting change program, and if they are different, sets the error state that can be reset and the normal gaming impossible state. A program is added. For this reason, it can be realized while observing the operation procedure that is customary in the industry, and therefore it can be said that the game machine is easily accepted by the hall.

  When changing the setting in the gaming machine, an error is always displayed and the gaming machine is stopped. From the stopped state, the normal game is waited by releasing the reset. Thereby, the operator who changes the setting can recognize that the setting has been changed. In addition, when an illegal setting change accompanied by power on / off is made during business, the gaming machine is stopped, so that damage can be minimized.

Embodiment 2 of the Invention
A state in which the contents of the first storage unit and the contents of the second storage unit do not match means that the internal setting process in FIG. 3 has not been reset, which means that the correct procedure has not been taken. Such a state is abnormal and suspicion of cheating occurs. Therefore, in this state, it is desirable that the game cannot be played even if the power is turned on again. In order to eliminate this abnormal state, the internal setting process shown in FIG. 3 may be performed once again, which is considered not to be a burden for the hall manager. On the other hand, only in FIG. 3, the above-mentioned abnormal state is resolved. S12: If the new setting value is written to the first storage unit, the power is turned on again or the reset switch is operated (except S11). However, since the above abnormal state continues, it seems to be effective from the point of prevention of fraud.

  Processing for preventing the game from being accepted in the abnormal state will be described with reference to FIG. The process of FIG. 4 is executed when the power is turned on.

S20: Turn on the power switch.

S21: The set value of the second storage unit 1c is compared with the set value of the first storage unit 1b.

S22: As a result of the comparison, if both match, it is considered to be a normal state, so the routine proceeds to normal game processing.

S23: As a result of the comparison, if the two do not match, error notification is performed.

S24: The reception of the game is stopped together with the error notification, and the normal game cannot be performed. This state is maintained for a long time. Even if reset, it does not enter the normal gaming state.

  After the internal setting process of FIG. 3 is executed, unless the process of S12 is correctly performed, the contents (new setting value) of the second storage unit 1c are not stored in the first storage unit 1b, and therefore the new setting value is valid. Don't be. When the power is repeatedly turned off / on, an error is only notified each time, and the game does not shift to a normal game.

  In conventional gaming machines, the game can be played by turning the power off / on. On the other hand, according to the second embodiment of the present invention, a game cannot be performed. This is believed to make it extremely difficult for cheating. Therefore, it can be said that the illegal act can be more effectively prevented by performing the process of FIG.

The characteristics of the gaming machine are as follows.
(1) The set value changing procedure itself is not different from the conventional procedure and is easy to accept. A reset operation is added, which is what the hall manager has done in the past, and there is not much resistance.
(2) It can be realized only by software. Only a few software modifications are required.
(3) When an illegal act is performed with respect to a setting change, an error is always notified, and it does not return unless a reset operation is performed. This is very effective in preventing fraud because it is fraudulent.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say. Further, if the setting switch / reset switch 83 is covered with a cover, it is more effective in preventing fraud.

  Further, in the present specification, the term “unit” does not necessarily mean a physical means, but includes a case where the function of each unit is realized by software. Furthermore, the function of one part may be realized by two or more physical means, or the function of two or more parts may be realized by one physical means.

It is a front view of a rotating type game machine. 1 is a schematic block diagram of a gaming machine according to Embodiment 1 of the present invention. The processing flowchart of the gaming machine according to the first embodiment of the present invention is shown. The processing flowchart of the game machine which concerns on Embodiment 2 of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main board | substrate 1a Setting change part 1b 1st memory | storage part 1c 2nd memory | storage part 1d Comparison part 1e Unplayable state setting part 1f Reset part 2 Sub board | substrate 2a Error notification part 10 Slot machine 11 Housing | casing 12 Display window 13 Symbol display window 16 Bet switch 17 Settlement switch 20 Random number generator 30 Start switch 40 Rotating reel 42 Reel tape 50 Stop switch 60 Reel unit 61 Pattern 62 Liquid crystal display unit 70 Reel drive unit 71 Reel position detection circuit 80 Hopper drive unit 81 Hopper 82 Medal detection unit 83 Setting switch 100 Medal slot 200 Liquid crystal control board 201 Speaker 202 LED board 304 Medal payout slot 311 Medal receiving part (lower plate)

Claims (6)

  A first storage unit that stores setting information related to an internal operation of the control unit in a gaming machine including a control unit that performs internal lottery and winning determination in response to a player's operation and performs payout control of game media in accordance with winning A setting switch for changing the setting information; a second storage unit for storing the selected new setting information when a setting change request is received from the setting switch; and a setting of the second storage unit A gaming machine comprising: a comparing unit that compares information with setting information in the first storage unit; and an inoperable state setting unit that sets a gaming machine in a state in which no game is accepted based on an output of the comparing unit.   A reset unit that returns the gaming machine to a state that accepts a game, and when the reset unit returns the gaming machine to a state that accepts a game, setting information in the second storage unit is sent to the first storage unit. The gaming machine according to claim 1, wherein the gaming machine is stored. The first storage unit and the second storage unit are configured to hold the stored content even when the power is cut off,
The comparison unit compares the setting information of the second storage unit with the setting information of the first storage unit at the time of power-on, and the non-gaming state setting unit determines that the comparison result of the comparison unit does not match 3. The gaming machine according to claim 1, wherein the gaming machine is set in a state in which no game is accepted.   The gaming machine according to any one of claims 1 to 3, further comprising an error notification unit that notifies an error when the gaming machine is set to a state in which a game is not accepted. In accordance with the player's operation, an internal lottery and a winning determination, and a fraud prevention method in a gaming machine comprising a control unit that controls the payout of gaming media according to winning,
A first step of storing setting information related to the internal operation of the control unit;
A second step of selecting new setting information when receiving a setting change request regarding the internal operation of the control unit;
A third step of comparing the new setting information of the second step with the current setting information stored in the first step;
And a fourth step of setting the gaming machine in a state in which no game is accepted when the comparison result is inconsistent. A control program for a gaming machine that includes a control unit that performs internal lottery and winning determination in response to a player's operation, and controls payout of game media in accordance with winning,
A first step of storing setting information related to the internal operation of the control unit;
A second step of selecting new setting information when receiving a setting change request regarding the internal operation of the control unit;
A third step of comparing the new setting information of the second step with the current setting information stored in the first step;
A program for causing a computer to execute a fourth step of setting a gaming machine so as not to accept a game when the comparison result is inconsistent.

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