JP2010184069A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent fraudulentness (by a hanging board ) in a game machine. <P>SOLUTION: In a command transmitted from a main board to a sub-board, one fluidized bit is provided. The main board sets one bit in a specified position in generating a command, and changes the setting position at every command transmission (fluidizes). Although the sub-board can know the setting position in advance, an unauthorized board (the hanging board) cannot set the bit in an appropriate position. Therefore, one fluidized bit is used for determining whether or not the command is regular, whereby the fraudulentness can be determined and prevented. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gaming machine such as a ball and ball game machine (pachinko machine), and more particularly to a technique for preventing an illegal act by illegally providing a board inside the gaming machine.

  A ball ball game machine (a so-called pachinko machine) installed in a game machine installation store (hall) or the like uses a game ball (also called a game medium) to play a game. The borrowed game balls are launched to the board surface provided on the game board of the ball game machine, and a predetermined number of game balls are paid out each time the game balls enter a predetermined winning opening. The game balls to be paid out are called prize balls.

There are the following winning holes provided on the board of the ball game machine.
(1) Ordinary winning device (2) Start chucker (starting winning device)
(3) Attacker (Large winning device)
(4) Through chucker (winning chucker)

The start chucker (starting winning device) is also called a specific winning device. When a game ball is accepted by the start chucker (start prize-winning device) and enters the winning state, the prize ball is paid out and an electronic lottery is performed. In the case of winning, the game state is advantageous to the player from the normal state. Thus, the attacker (large winning device) is opened.
The attacker (large winning device) is also called a special winning device.

  The through chucker (winning chucker) does not pay out the winning ball directly, but is included in the winning slot in this specification. When it is detected that the game ball has passed through the through chucker (winning chucker), an electronic lottery is performed. When winning, a predetermined start chucker (starting winning device) is set so that a game state is advantageous to the player. The time is released to make it easier for the game ball to enter the start chucker (start prize winning device). The game ball received by the through chucker (winning chucker) moves on the board as it is and is received by another winning port or discharge port (out port).

  Pachinko machines and other gaming machines that are installed and used in pachinko parlors and other gaming venues are given a certain value to gaming media such as pachinko balls, and the gaming media acquired through games are exchanged for various prizes. can do. In the gaming machine, various drive devices such as a lamp device and a sound generation device that are operated based on the supply of the game medium, and a control circuit device (control) corresponding to control these drive devices are provided in the housing. And a sub-control unit), and when the player plays a game, they are appropriately operated to make the game full of fun. Further, in recent years, a variable symbol display device such as a liquid crystal image display device capable of variably displaying predetermined identification information (symbol) is built in, and when predetermined conditions are satisfied, the identification information is changed and then stopped and displayed. The thing which operates a symbol variable display apparatus has become mainstream. Such control is realized by transmitting a predetermined command from a control unit that mainly executes game processing to a sub-control unit that mainly executes effect processing.

JP 2000-300776 A JP 2000-126429 A Japanese Patent Laid-Open No. 11-346158 Japanese Patent Laid-Open No. 11-114166

  By the way, cheating on gaming machines has become a major problem. There are various types of cheating. In addition to exchanging the ROM or the control unit itself, an illegal board (hanging board) is provided between the control unit and the sub-control unit, and the command sent from the control unit to the sub-control unit is altered to play a game There is a fraudulent act (hanging goto) that causes a person to perform an advantageous performance. In the fraudulent act, screen display and lighting of the lamp by the sub-control unit are normally performed. Therefore, it is difficult to detect such fraud.

  The present invention has been made to prevent the above-mentioned fraud, and an object of the present invention is to provide a gaming machine that can prevent the above-mentioned fraud by detecting alteration of a command by a hanging board.

The present invention relates to a gaming machine including a control unit that executes a control process related to a game, and a sub-control unit that receives a command from the control unit and performs a predetermined process such as an effect based on the command.
The command includes a preceding command composed of a plurality of bits and a succeeding command subsequent to the preceding command.
The control unit includes a command generation unit that generates at least the preceding command and transmits it to the sub-control unit,
The sub-control unit includes a command counter that performs counting based on reception of the preceding command, and a command receiving unit that receives at least the preceding command,
The command generator is
A first transmission step of setting a predetermined first bit of the preceding command;
A second transmission step of setting a predetermined second bit of the preceding command;
A third transmission step of transmitting the preceding command generated by the first generation step and the second generation step;
A fourth transmission step of setting a bit separated by a predetermined number of bits from the second bit of the preceding command generated this time as the second bit of the preceding command to be generated next time;
Repeating the first transmission step to the fourth transmission step,
The command receiver
A first receiving step for checking whether the first bit of the received preceding command is set;
A second receiving step of setting the position of the second bit based on the count value of the command counter;
A third receiving step for checking whether or not the second bit set in the second receiving step is set;
When it is determined in the first reception step that the first bit is set and it is determined in the third reception step that the second bit is set, the subsequent command is accepted and the sub-command is received. A fourth receiving step for causing the control unit to execute a predetermined process;
When it is determined that at least the second bit is not set in the third reception step, a fifth reception step for performing error processing is executed.

The command generator is
In the second transmission step, when the second bit is first set, the least significant bit is set as the second bit and the bit is set.
In the fourth transmission step,
A 41st transmission step of setting, as the second bit of the preceding command to be generated next time, a bit moved from the second bit of the preceding command generated this time to the most significant bit side by a predetermined bit;
A 42nd transmission step of repeating the 41st transmission step until the most significant bit is set as the second bit;
A 43rd transmission step of setting a bit moved from the second bit of the preceding command generated this time to the least significant bit side by a predetermined bit as the second bit of the preceding command to be generated next time;
A 44th transmission step of repeating the 43rd transmission step until the least significant bit is set as the second bit;
A 45th transmission step for executing the 41st transmission step when the second bit of the preceding command generated this time is the least significant bit;
When the second bit of the preceding command generated this time is the most significant bit, execute the 46th transmission step to execute the 43rd transmission step next,
The command counter may perform any of the following first command counter step to fourth command counter step when the command is received.
A first command counter step of adding a predetermined value to the count value when the previous operation is addition of a predetermined value and the current count value has not reached a predetermined upper limit;
A second command counter step for subtracting a predetermined value from the count value when the count value has reached a predetermined upper limit;
A third command counter step for subtracting a predetermined value from the predetermined value when the previous operation is a subtraction of the predetermined value and the current count value has not reached a predetermined lower limit;
A fourth command counter step of adding a predetermined value to the count value when the count value has reached a predetermined lower limit value;

The command generation unit reverses the moving direction in the 41st transmission step and the 43rd transmission step when the command generated this time is a predetermined command,
When the received command is a predetermined command, the command counter changes addition to subtraction in the first command counter step and changes subtraction to addition in the third command counter step. Also good.

  According to the present invention, the main board sets a predetermined second bit when generating a preceding command, and changes (fluidizes) the set position for each command transmission, so that the fluidized bit is obtained. Based on this, it can be determined whether or not the preceding command is legitimate. Therefore, an illegal command from the hanging board can be distinguished from a normal command, and an illegal act can be detected. It is possible to terminate the fraud by failing by performing error processing after detecting the fraud and taking measures such as disabling the gaming machine.

It is a perspective view which shows the surface structure of a game machine. It is a perspective view which shows the back surface structure of a game machine. It is a figure (front view) which shows the mode of the board surface seen from the player. It is a functional block diagram of the gaming machine according to the embodiment of the invention. It is explanatory drawing of the command which concerns on embodiment of invention. It is explanatory drawing of the prior | preceding command which concerns on embodiment of invention. It is explanatory drawing (a figure which shows the change of a time series) of the prior | preceding command which concerns on embodiment of invention. It is explanatory drawing (the figure which shows the status change of a sub control part, and the change of a command counter) which concerns on embodiment of invention. It is a production | generation / transmission process flowchart of the command which concerns on embodiment of invention. It is a generation process flowchart of the preceding command which concerns on embodiment of invention. It is a reception process flowchart of the command which concerns on embodiment of invention. It is a check process flowchart of the preceding command which concerns on embodiment of invention. It is another generation processing flowchart of a preceding command concerning an embodiment of the invention. It is another check processing flowchart of the preceding command which concerns on embodiment of invention.

Embodiment 1 of the Invention
An outline of the structure of the ball game machine will be described with reference to FIGS. 1 and 2.
First, the external structure of the gaming machine according to the embodiment of the present invention will be described with reference to FIG.
The outer frame 50 is a wooden frame member having a vertical rectangular shape for fixing to an installation location (island facilities or the like) provided in a gaming machine installation sales shop.
The main body member 51 is a member that is provided inside the outer frame 50 and serves as a longitudinal rectangular gaming machine base body that is rotatably attached to the outer frame via a hinge portion 51a. The main body member 51 is formed in a frame shape and has a space portion inside thereof.
The opening frame door 52 is mounted on the front surface of the main body member 51 on the front side of the gaming machine so as to be openable and closable, and is configured in a frame shape so that the inside is an opening. It is a door member.
A transparent plate member made of glass or resin is provided at the opening of the opening frame door 52, and an electrical decoration 52a, a speaker 52b, and the like are attached in the vicinity of the opening.
A game board (not shown in FIG. 1), which will be described later, is detachably attached to the main body member 51 using a predetermined fixing member so as to face the space of the main body member 51. After the game board is mounted on the main body member 51, the game area can be observed from the opening.

The door 53 with a ball tray is a door member provided at least with a ball tray for storing a game ball attached to the lower part of the main body member 51 on the front surface of the gaming machine so as to have a lock function and be openable and closable. In addition, the following members are attached to the door with a ball tray in the present embodiment.
(1) A ball tray in which a plurality of game balls can be stored and a passage for guiding the game balls to the firing drive device 48 is provided.
(2) A rotary operation handle 48b for performing an operation of launching the stored game ball guided to the launch drive device 48 to a game area provided on the board surface 11 of the game board 10.
(3) A ball lending-related operation unit provided with buttons for instructing a read-in related to reading a paid card and a lending process related to a borrowed game ball.
(4) A storage ball discharge operation button for a ball tray for releasing the game ball stored in the ball tray into a game ball collecting container (common name, dollar box).

Next, an internal configuration of the gaming machine according to the embodiment of the present invention will be described with reference to FIG.
As described above, reference numeral 40 denotes a control unit that is provided via the main body member 51 or the game board 11 or a support member attached thereto, and performs electrical game control processing to generate main processing information.
40b is provided through the main body member 51 or the game board 11 or a support member provided to the main body member 51, or a sub member that performs control to perform predetermined output mode processing by obtaining processing information generated by the control unit 40. It is a control unit.
A payout control unit 42 performs payout control of prize balls.
43 is a game ball payout device for paying out game balls.
Reference numeral 44 denotes an electric decoration control unit that controls a lamp and electric decoration 52a (not shown).
An acoustic control unit 46 generates sound by controlling and driving the speaker 52b.
49 is a control device for controlling the firing drive device 48, and is a launch control device for controlling the launch of a game ball to a game area provided on the board surface via a rotary operation handle 48b.

FIG. 3 is a front view of the game board of the gaming machine.
In FIG. 3, reference numeral 11 denotes a board surface of the game board 10. The board surface 11 changes the direction of the guide rail 12, the discharge port (out port) 13 that guides the game ball that has fallen through the substantially circular game area defined by the guide rail 12, and the direction of the game ball that moves in the game area. It is a rectangular board surface provided with a plurality of obstacles such as the nailing 14 and the windmill 14a.

  The game area of the board surface 11 described above is partitioned and formed into a substantially circular shape by the guide rail 12 (including a sliding part for sliding the game ball and a regulation part for regulating the game ball), and the movement of the game ball that has been launched It is an area that regulates the range. A restricting portion is provided to follow the sliding portion. The sliding portion is arranged on the board surface 11 in a spiral as a whole.

  The discharge port (out port) 13 is a collection opening provided at a position where the game balls thrown into the game area converge.

  The game nails as the obstacles 14 are a plurality of rod-shaped members that are driven into appropriate positions on the board surface 11 in order to make the movement direction irregular by contacting with the game ball or to restrict the movement direction.

Reference numeral 30a denotes a variable display device (center accessory) that is provided at the center or slightly above the game area and has one or more variable display sections such as an effect display lamp and an LCD (liquid crystal display device).
30b is a through chucker (winning chucker).
30c is a normal winning device having a normal winning opening.
30d is a start chucker (start winning device) having a start winning opening.
30e is an attacker having a big prize opening.
In the following description, 30b to 30d may be collectively referred to as a winning opening 30 or the like.
Although not shown, the ball passage detectors 20b, 20c, and 20d are provided inside the 30b, 30c, and 30d (the reference numerals in parentheses in the figure mean that).

The start winning device of the start chucker 30d is also called a specific winning device, and the big winning device of the attacker 30e is also called a special winning device.
The start chucker (start winning device) 30d is provided with movable pieces on both sides for expanding and contracting the opening range of the winning opening, making a variable display by winning a game ball and winning a prize for a player. Device.
The attacker (large winning device) 30e is driven and controlled by a movable door that exposes the winning port and closes the winning port, and is compared with other winning devices by winning game balls. This is a winning device that allows more prize balls to be obtained.

FIG. 4 is a functional block diagram of the gaming machine according to the embodiment of the present invention.
Reference numeral 40 denotes a control unit that performs electrical game control processing and generates main processing information. The control unit 40 moves (flows down) the game area and receives signals from the ball passage detectors 20b to 20d that detect the game balls that have passed through the winning holes 30b to 30d, respectively, and passes the gaming balls through the winning holes 30b to 30d. A winning determination unit 40a for performing a lottery / determination in accordance with the selection.

  The winning determination unit 40a includes a random number generation unit 40a-1 that generates random numbers for lottery. The random number generator 40a-1 generates a plurality of random numbers for various lotteries. Specifically, the generation method is a counting operation in which data in a predetermined area (address) of the memory is defined as a random number value and the data is incremented by 1 at a predetermined time interval. When the random number increases and reaches the maximum value MAX, it returns to the minimum value MIN (for example, 0000). The same is repeated again. This process is also called a random number update process. Since the memory is cleared when the power is turned on with the memory clear switch MCLR turned on, the random number value of the random number generator 40a-1 returns to the initial value (for example, 0000).

  Reference numeral 41 denotes a display control unit that turns on an effect display lamp of the variable display device (center accessory) 30a and displays an image related to the effect on an LCD (liquid crystal display device). The display control unit 41, in accordance with the result of the electronic winning / losing lottery based on establishment of a predetermined condition in the winning determination unit 40a provided in the control unit 40 (for example, winning of a game ball to the start winning device 30d, etc.) It is also a display control device that performs stop display after variably displaying the identification display information (effect display on the LCD of the variable display device (center accessory) 30a). Furthermore, the display control unit 41 determines the identification lighting information (in accordance with the result of electronic determination of lottery based on the establishment of a predetermined condition in the winning determination unit 40a (for example, the passing of a game ball to a predetermined passing port). This is a display control device that performs stop display after variable display of the variable display device (center accessory) 30a is lit and displayed on the effect display lamp.

  The LCD of the variable display device (center accessory) 30a is a device that variably displays a specific symbol related to the big hit state and also displays a background image, various characters, and the like in an animated manner. When it is detected that the game ball has passed through the start chucker (start winning device) 30d, the displayed symbol fluctuates for a predetermined time, and the lottery is drawn when the game ball start chucker (start winning device) 30d passes. The stop symbol determined by the random number for lottery is displayed on the LCD and stopped. The attacker 30e includes an opening / closing plate that can be opened forward. When the symbol after the LCD fluctuation stops is a winning symbol such as “777”, a special game called “big hit” is started, and the opening / closing plate of the attacker 30e is opened a predetermined number of times. After the opening / closing plate of the attacker 30e is opened, the opening / closing plate is closed when a predetermined time elapses or when a predetermined number of game balls are won.

42 is a payout control unit that receives the signal of the winning determination unit 40a and controls the game ball payout device 43 according to the game balls passing through the winning holes 30b to 30d and / or according to the lottery / determination result. .
43 is a game ball payout device provided with a driving source for paying out a predetermined number of game balls according to the result of the lottery / determination according to the game balls passing through the winning openings 30b to 30d and / or as the game profits. .

  Reference numeral 40b denotes a sub-control unit that performs control to perform predetermined output mode processing including effects such as blinking of light and generation of sound by obtaining the processing information generated by the control unit 40.

Reference numeral 44 denotes a lamp control unit for controlling lighting of the lamp / electric decoration 52a and the like provided on the gaming board 10 or the gaming machine casing.
An acoustic control unit 46 generates sound effects / sounds through a speaker 52b provided in the gaming board 10 or the gaming machine casing.

  Reference numeral 30 denotes a concentrated terminal board that relays a signal from the control unit 40 and sends it to a hall computer (not shown).

  The winning devices 30b to 30d provided in the game area are respectively provided with ball passage detectors (for example, switches) 20b to 20d so that the passage of the game ball can be detected. When the position of any of the winning devices 30b to 30d passes, the ball passage detectors 20b to 20d detect this, and the winning determination unit 40a performs a predetermined lottery / determination process. For example, when the ball passage detector 20b detects a game ball that has passed through the through chucker (winning chucker) 30b, a predetermined lottery is performed, and when winning, the start chucker (starting winning device) 30d is released for a predetermined time. That is, a pair of movable pieces provided opposite to each other on both the left and right sides of the start chucker (start winning device) 30d are opened outward. At the same time, the effect of winning is displayed on the variable display device (center accessory) 30a. Then, when it is detected that the game ball has passed the start chucker (starting winning device) 30d, a predetermined lottery is performed, and when winning, the big winning device of the attacker 30e is released.

  The control unit 40 includes a command generation unit 100 that generates and transmits a predetermined command to the sub-control unit 40b. Note that the command generation unit 100 may be provided separately from the control unit 40.

  The sub-control unit 40b receives a command from the control unit 40, a command counter 111 that performs counting based on command reception, and an error that performs error processing when the command reception unit 110 receives an irregular preceding command. A processing unit 112 is included. Note that the command receiving unit 110 and the command counter 111 may be provided separately from the sub-control unit 40b.

  FIG. 5 is an explanatory diagram of commands generated by the command generation unit 100 of the control unit 40. The command consists of 8-bit data (of course, 8-bit is an example, and 16-bit may be used). As shown in the figure, the command is composed of a preceding command and a subsequent command. The preceding command has a most significant bit (MSB) of 1 and a succeeding command has 0. These are fixed and do not change (flow). The command receiving unit 110 that receives the command can distinguish the preceding command and the subsequent command based on the most significant bit of the command. The most significant bits 1 and 0 can be reversed. Based on this, it is defined that the most significant bit is “set” in the preceding command, and that the bit is set to 1 in positive logic and 0 in negative logic is set to “set the most significant bit. I will do it.

  Since the embodiment of the present invention relates to the preceding command, only the preceding command will be described below.

FIG. 6 shows all bit patterns that can be a preceding command in an 8-bit command. That is, there are a total of eight types of preceding commands: a pattern in which only the most significant bit is 1 (= 80H) and a pattern in which only the most significant bit and the other 1 bit are 1 (= 81H to C0H). The remaining 6 bits are all 0 (not set). As can be understood from FIG. 6 and the following description, since one bit other than the most significant bit is constantly changed, in other words, one bit is fluidized, it becomes difficult to analyze a command. Even if an illegal command is sent by providing a hanging board), there is a low possibility that it will be accepted by the sub-control unit 40b.
In the following explanation, the bit set by changing the position for each command is “fluidized 1 bit” or “second bit”, and the bit that is not changed (the most significant bit in the example of FIG. 6) is “first”. Sometimes called "bit".

  FIG. 7 is a diagram illustrating a change in one bit other than the most significant bit of the preceding command. In the figure, the preceding commands are arranged from top to bottom according to the time series. Left shift and left shift at the left end indicate the direction in which the 1 bit moves. At the right end, the value of the preceding command at that time is written in hexadecimal along with the contents of the command.

  Since the status management (not shown) is performed by the sub-control unit 40b, it is possible to grasp the next command. By receiving the preceding command as shown in FIG. 7, it is possible to grasp what the command received by the sub control unit 40b is (see the right column in FIG. 7). Therefore, in FIG. 7, the preceding command and the content of the command do not correspond one to one. For example, 80H corresponds to a power-on command and a fluctuation end command. On the other hand, there are three types of preceding commands at the time of winning the start opening, 81H, 90H and C0H.

  As can be seen from the figure, only the most significant bit is 1 in the initial state when the power is turned on. After that, there is one bit which is 1 in addition to the most significant bit, and it moves in order from the least significant bit to the most significant bit (left shift). When the bit overlaps the most significant bit, thereafter, the bit moves in order from the most significant bit to the least significant bit (right shift). Thereafter, the above procedure is repeated.

  In the above procedure, both the control unit 40 and the sub-control unit 40b can grasp where the fluidized 1 bit is located. Therefore, the control unit 40 can set the fluidized 1 bit at a specified position when generating the preceding command, and the sub-control unit 40b sets the fluidized 1 bit at the specified position. Can be determined. On the other hand, if an illegal board (hanging board) is attached to the game in operation, the fluidized 1 bit cannot be set correctly. If the preceding command is intercepted, the fluidized 1-bit position at that time can be known, but the moving direction cannot be known. Thus, the fluidized 1 bit can be used to determine whether the command is legitimate.

  With reference to FIG. 8, the state of command transmission from the control unit 40 to the sub-control unit 40b and the change in the count value of the command counter 111 will be described. Following the time series from top to bottom is the same as FIG. For convenience of explanation, reference numerals t1,... Are attached, which indicate time. That is, it is assumed that time elapses in the order of t1,.

  At time t1, a command for turning on the power is transmitted from the control unit 40 to the sub-control unit 40b. In the preceding command at this time, only the most significant bit is 1 as described above (80H). In response to this, the status of the sub-control unit 40b becomes the initial state (MODE_INT). When a predetermined initial setting process is completed, the game state (MODE_PLAY) is entered. The command counter 111 is reset by a command when the power is turned on, and the count value becomes 0 (zero).

  The command to be transmitted next is a command at the time of starting winning a prize. The command is transmitted at time t2. In response to this, the status of the sub-control unit 40b becomes a stopped state (MODE_STOP). The command counter 111 is incremented (+1) by receiving the command at the start winning prize, and the count value becomes 1.

  Subsequently, a command at the time of deviation fluctuation and other necessary commands are transmitted. The preceding commands of these commands are 81H and 82H, respectively, according to the rules of FIG. The command counter 111 is incremented twice and its count value becomes 3.

  At time t3, a command at the end of change is transmitted. The preceding command is 88H. In response, the status of the sub-control unit 40b returns to the gaming state (MODE_PLAY). The command counter 111 is incremented and the count value becomes 4.

  At time t4 and t6, a command for starting winning is transmitted, and the same procedure is repeated. At time t5 and t7, a command at the end of fluctuation is transmitted, and the same procedure is repeated. Those preceding commands change according to the rules of FIG. The command counter 111 is incremented for each command and reaches a maximum value of 8 at time t5, where the shift direction changes. Hereinafter, the command counter 111 is decreased to 7, 6,..., And the count value becomes 4 at time t7.

  Since the jackpot is won at time t8, a jackpot start command is transmitted. The preceding command is 84H. In response to this, the status of the sub-control unit 40b becomes a bonus state (MODE_BONUS). The command counter 111 is decremented (−1) and the count value becomes 3.

  At time t9, a round starts, so a round start command is transmitted. The preceding command is 82H. In response to this, the status of the sub-control unit 40b becomes a round state (MODE_ROUND). The command counter 111 is decremented and the count value becomes 2.

  The count value of the command counter 111 indicates the fluidized 1-bit position of the preceding command of the command when the command is received and the count operation is performed (the least significant bit position is 1, the most significant bit As 8). The position of 1 bit fluidized based on the count value may be specified and the preceding command may be checked. In the example of FIG. 8, the count value of the command counter 111 directly indicates the fluidized 1-bit position of the current preceding command.

  If one bit that is fluidized is specified based on the count value before receiving the command (that is, the count value at the time of receiving the previous command), the previous count value is incremented by +1 (in the case of left shift), Alternatively, -1 (in the case of right shift) may be used.

  An overview of command generation and transmission processing of the control unit 40 will be described with reference to a command generation / transmission processing flowchart according to the embodiment of the invention of FIG.

S1: An instruction is received from a CPU (or program) (not shown) of the control unit 40 to transmit a predetermined command.

S2: When the above command is received, a preceding command is generated according to the rules shown in FIG.

S3: A subsequent command corresponding to the instruction is generated. Subsequent commands are the same as known ones, so the description thereof is omitted.

S4: Send the preceding command and the succeeding command generated in S2 and S3.

A specific procedure for generating the preceding command will be described with reference to the flowchart for generating the preceding command according to the embodiment of the invention in FIG. This procedure generates a preceding command according to the rules shown in FIG.
As described above, the “second bit” is a bit that is set by changing the position for each command, and the “first bit” is a bit that does not change.

S11: A predetermined first bit of the preceding command is set.

S12: A predetermined second bit of the preceding command is set. When the second bit is set first (immediately after power-on), the most significant bit is set as the second bit and the bit is set (see t1 in FIGS. 7 and 8).

S13: As a second bit of the preceding command to be generated next time, a bit separated by a predetermined number of bits from the second bit of the preceding command generated this time is set as the second bit of the preceding command to be generated next (fourth transmission). Step).

  As shown in FIG. 9, S1 to S4 and S11 to S13 are repeated for each command transmission.

  Specifically, the process of S13 includes the following processes.

As the second bit of the preceding command to be generated next time, the bit moved from the second bit of the preceding command generated this time by the predetermined bit to the most significant bit side is set as the second bit of the preceding command to be generated next time (41st transmission) Step, see t2 to t5 in FIGS.

The 41st transmission step is repeated until the most significant bit is set as the second bit (see the 42nd step, t2 to t5 in FIGS. 7 and 8).

As the second bit of the preceding command to be generated next time, the bit moved from the second bit of the preceding command generated this time to the least significant bit side by a predetermined bit is set as the second bit of the preceding command to be generated next time (43rd transmission). Step, see t5 to t9 in FIGS.

The 43rd transmission step is repeated until the least significant bit is set as the second bit (see the 44th transmission step, t5 to t9 in FIGS. 7 and 8).

When the second bit of the preceding command generated this time is the least significant bit, the 41st transmission step is executed (45th transmission step, see t2 in FIGS. 7 and 8).

When the second bit of the preceding command generated this time is the most significant bit, the 43rd transmission step is executed (see the 46th transmission step, t6 in FIGS. 7 and 8).

  The outline of the reception process of the sub-control unit 40b will be described with reference to the command reception process flowchart according to the embodiment of the invention in FIG.

S21: Receive a command.

S22: A preceding command located at the head of the received command is checked. Specifically, both the first bit and the second bit are checked.

S23: It is checked whether the first bit is set and the second bit is set. A set is 1 in positive logic and 0 in negative logic.

  If the first bit is not set, there is a possibility of a subsequent command, and the head command may be lost for some reason. If the second bit is not set, the command of FIG. 7 is not followed, and there is a possibility that the command is from an illegal board (hanging board). If the former, there is a possibility of substrate failure, and if the latter, there is a possibility of fraud. In any case, it is preferable to perform error processing. Therefore, if NO in S23, the error process in S26 is executed. Preferably, error processing is performed when it is determined that at least the second bit is not set.

S24: If the check result of the preceding command is OK (YES in S23), the subsequent command is accepted. That is, when it is determined that the first bit is set and it is determined that the second bit is set, the subsequent command is accepted and the sub-control unit 40b executes a predetermined process.

S25: The received subsequent command is sent to the CPU (program) of the sub-control unit 40b to execute the command.

  A specific procedure for checking the preceding command will be described with reference to the preceding command check processing flowchart according to the embodiment of the invention shown in FIG. This procedure is to check preceding commands according to the rules shown in FIG.

S31: It is checked whether or not the first bit of the received preceding command is set.

S32: The position of the second bit is set based on the count value of the command counter 111. As described above, when using the count value after counting with the received command, the count value of the command counter 111 indicates the position of the fluidized 1 bit of the preceding command of the command (the maximum). The lower bit position is 1 and the most significant bit position is 8). The position of 1 bit that has been fluidized is identified directly using the count value, and the preceding command is checked. Then, it is checked whether the second bit is set.

  If one bit that is fluidized is specified based on the count value before receiving the command (that is, the count value at the time of receiving the previous command), the previous count value is incremented by +1 (in the case of left shift), Alternatively, it may be -1 (in the case of right shift) (see the description of S33).

S33: Counting is performed by the command counter 111.

  As shown in FIG. 11, S21 to S25 and S31 to S33 are repeated for each command transmission.

  Specifically, the process of S33 includes the following processes.

  When receiving a command, the command counter 111 performs any one of the following first command counter step to fourth command counter step.

A first command counter step of adding a predetermined value (= 1) to the count value when the previous operation is addition of the predetermined value and the current count value has not reached a predetermined upper limit value ,

A second command counter step for subtracting a predetermined value (= 1) from the count value when the count value has reached a predetermined upper limit value;

A third command counter step for subtracting the count value from the predetermined value when the previous operation is a subtraction of the predetermined value and the current count value has not reached a predetermined lower limit;

A fourth command counter step for adding a predetermined value to the count value when the count value has reached a predetermined lower limit value

  The preceding command according to the rule of FIG. 7 can be generated by the processing of FIG. 10 and FIG.

  According to the embodiment of the invention, by changing (fluidizing) one bit of the preceding command of the command transmitted from the control unit to the sub-control unit for each command transmission, the command is complicated and its analysis is difficult. Can be made. By fluidizing one bit of the preceding command, even if an illegal board (hanging board) is provided and an illegal command is sent, the possibility that this is accepted by the sub-control unit is reduced. Therefore, cheating can be prevented.

Embodiment 2 of the Invention
In the example of FIG. 7, switching between left shift and right shift when fluidizing is performed only when the fluidized bit reaches the most significant bit or the least significant bit.

  In the second embodiment of the present invention, when the command generated this time is a predetermined command, the moving direction is reversed. Accordingly, when the received command is a predetermined command, the command counter 111 changes addition to subtraction in the first command counter step and changes subtraction to addition in the third command counter step.

  As a specific command, for example, a jackpot start command can be used. After the command, the analysis becomes more difficult and therefore fraud can be more effectively prevented.

  FIG. 13 shows a flowchart of a process for generating a preceding command according to the second embodiment of the invention. FIG. 13 differs from FIG. 10 in that “however, the direction of movement is reversed when the command generated this time is a predetermined command” is added to S13b. Since others are the same, detailed description is abbreviate | omitted.

  FIG. 14 is a flowchart of the preceding command check process according to the second embodiment of the invention. FIG. 14 differs from FIG. 12 in that “however, when the received command is a predetermined command, the addition is changed to subtraction and the subtraction is changed to addition” is added to S33b. Since others are the same, detailed description is abbreviate | omitted.

  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.

40 control unit 40b sub control unit 100 command generation unit 110 command reception unit 111 command counter 112 error processing unit

Claims (3)

In a gaming machine comprising: a control unit that executes a control process related to a game; and a sub-control unit that receives a command from the control unit and performs a predetermined process such as an effect based on the command.
The command includes a preceding command composed of a plurality of bits and a succeeding command subsequent to the preceding command.
The control unit includes a command generation unit that generates at least the preceding command and transmits it to the sub-control unit,
The sub-control unit includes a command counter that performs counting based on reception of the preceding command, and a command receiving unit that receives at least the preceding command,
The command generator is
A first transmission step of setting a predetermined first bit of the preceding command;
A second transmission step of setting a predetermined second bit of the preceding command;
A third transmission step of transmitting the preceding command generated by the first generation step and the second generation step;
A fourth transmission step of setting a bit separated by a predetermined number of bits from the second bit of the preceding command generated this time as the second bit of the preceding command to be generated next time;
Repeating the first transmission step to the fourth transmission step,
The command receiver
A first receiving step for checking whether the first bit of the received preceding command is set;
A second receiving step of setting the position of the second bit based on the count value of the command counter;
A third receiving step for checking whether or not the second bit set in the second receiving step is set;
When it is determined in the first reception step that the first bit is set and it is determined in the third reception step that the second bit is set, the subsequent command is accepted and the sub-command is received. A fourth receiving step for causing the control unit to execute a predetermined process;
And a fifth receiving step for performing error processing when it is determined at least in the third receiving step that the second bit has not been set. The command generator is
In the second transmission step, when the second bit is first set, the least significant bit is set as the second bit and the bit is set.
In the fourth transmission step,
A 41st transmission step of setting, as the second bit of the preceding command to be generated next time, a bit moved from the second bit of the preceding command generated this time to the most significant bit side by a predetermined bit;
A 42nd transmission step of repeating the 41st transmission step until the most significant bit is set as the second bit;
A 43rd transmission step of setting a bit moved from the second bit of the preceding command generated this time to the least significant bit side by a predetermined bit as the second bit of the preceding command to be generated next time;
A 44th transmission step of repeating the 43rd transmission step until the least significant bit is set as the second bit;
A 45th transmission step for executing the 41st transmission step when the second bit of the preceding command generated this time is the least significant bit;
When the second bit of the preceding command generated this time is the most significant bit, execute the 46th transmission step to execute the 43rd transmission step next,
2. The gaming machine according to claim 1, wherein when the command is received, the command counter performs any one of the following first command counter step to fourth command counter step.
A first command counter step of adding a predetermined value to the count value when the previous operation is addition of a predetermined value and the current count value has not reached a predetermined upper limit;
A second command counter step for subtracting a predetermined value from the count value when the count value has reached a predetermined upper limit;
A third command counter step for subtracting a predetermined value from the predetermined value when the previous operation is a subtraction of the predetermined value and the current count value has not reached a predetermined lower limit;
A fourth command counter step of adding a predetermined value to the count value when the count value has reached a predetermined lower limit value; The command generation unit reverses the moving direction in the 41st transmission step and the 43rd transmission step when the command generated this time is a predetermined command,
The command counter is configured to change addition to subtraction in the first command counter step and change subtraction to addition in the third command counter step when the received command is a predetermined command. The gaming machine according to claim 2.

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