JP2002336507A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fraudulent input of a control signal to a controlling CPU from a base board electrically connected to the controlling CPU controlling a game machine. SOLUTION: The base board 700 is electrically connected to the controlling CPU controlling the game machine. On a base board mounting face 250a for mounting the base board 700, a recess part 252 matching a projection part 712 formed on the base board mounting face side in the base board 700 is formed. Therefore, when the base board 700 is mounted to the base board mounting face 250a, the projection part 712 is housed in the recessed part 252 to be tightly stuck to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine controlled by a control CPU, and more particularly, to a technique for preventing an illegal act on a control CPU.

[0002]

2. Description of the Related Art For example, a gaming machine that is highly electronically equipped, such as a pachinko machine, is equipped with a control CPU for controlling various gaming machines. Therefore, there is a case where the state of the gaming machine is brought into a state advantageous to the player (the person who commits the injustice) by acting on the control CPU.
As a typical method of acting illegally on a control CPU, there is a method of replacing a regular control CPU with an illegal one. Therefore, in a conventional gaming machine, a control board on which a control CPU is mounted is housed in a board box, and the board box is sealed by a sealing seal. In such a gaming machine, it is necessary to release the sealed state of the board box in order to replace the control CPU. Therefore, by examining the sealing state of the substrate box, it was possible to discover whether or not fraudulent acts were performed.

[0003]

However, in some cases, fraudulent acts cannot be prevented by the above-described method. That is, the control CPU provided in the gaming machine receives a control signal output from a detection device or an operation switch provided in each part of the gaming machine, and controls the gaming device based on the input control signal. . Therefore, it is possible to attach an unauthorized component (illegal IC) that generates a signal to a board that is not housed in the board box and that is electrically connected to the control CPU, and illegally input a signal to the control CPU. Become. In such a case, since the sealed state of the substrate box is not released, it is not possible to detect fraudulent activities, and in particular,
When an unauthorized component is mounted on the back surface of the board (the space between the board and the board mounting surface), it has been difficult to detect whether or not the unauthorized component has been installed from the front of the board.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a gaming machine capable of easily detecting an illegal act by eliminating a space for mounting an illegal component on the back surface of a substrate. provide.

[0005]

Means for Solving the Problems, Functions and Effects In order to solve the above problems, a game machine according to claim 1 is a game machine having a board electrically connected to a control CPU for controlling the game machine. A concave portion corresponding to a convex portion formed on the substrate mounting surface side of the substrate is formed on the substrate mounting surface on which the substrate is mounted. In this gaming machine, a concave portion corresponding to a convex portion (for example, a solder or a terminal of an electronic element) formed on the substrate mounting surface side of the substrate is formed on the substrate mounting surface.
Therefore, when the substrate is mounted on the substrate mounting surface, the convex portion of the substrate is accommodated in the concave portion formed on the substrate mounting surface. For this reason, the board and the board mounting surface can be brought into substantially close contact, and there is no space for mounting unauthorized components on the board mounting surface (back side) of the board. Therefore, in order to attach a fraudulent component, it must be attached to the front side of the substrate, and it becomes easy to detect fraudulent acts.

In the above gaming machine, it is preferable that the concave portion has substantially the same shape as the shape of the convex portion. According to such a configuration, the space between the convex portion on the substrate side and the concave portion on the substrate mounting surface can be further reduced.

In the above-mentioned gaming machine, a plurality of convex portions are formed on the substrate mounting surface side of the substrate, and a plurality of concave portions are formed on the substrate mounting surface corresponding to each of the plurality of convex portions. Is also good. According to such a configuration, a concave portion is formed corresponding to each of the convex portions formed on the back surface of the substrate,
The size of each recess can be reduced.

In the above-mentioned gaming machine, a plurality of convex portions are formed on the substrate mounting surface side of the substrate, and one or more concave portions are formed on the substrate mounting surface corresponding to the plurality of convex portions. And at least one of the concave portions may accommodate two or more convex portions. According to such a configuration, the number of concave portions formed on the substrate mounting surface can be reduced, and labor for processing the substrate mounting surface can be saved.

A game machine according to a fifth aspect of the present invention is a game machine having a board electrically connected to a control CPU for controlling the game machine, wherein the board has a board mounting surface. Are mounted on the board mounting surface such that the space between the substrates is substantially in close contact. In this gaming machine, the space between the board and the board mounting surface is substantially in close contact, so that there is no space for mounting unauthorized components on the board mounting surface (back side) of the board. Therefore, it is easy to find out whether or not an unauthorized component has been attached.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The gaming machine described in each of the above-mentioned claims can be suitably implemented in the following forms. (Mode) The control CPU generates a random number using a random number program of an initial value changing random number system. Control C
The PU acquires the random number generated due to the establishment of the lottery condition, and makes the state of the gaming machine advantageous to the player when the acquired random number is a hit value. The board is a board that outputs an initialization signal to the control CPU. Here, the “initial value change type random number method” means that random numbers are sequentially updated from an initial value at predetermined time intervals, circulate within a preset numerical range, and the initial value is changed at predetermined time intervals. System.
Further, the “initialization signal” may be any signal as long as it is a signal for initializing and restarting a random number program executed by the control CPU, and for example, a power failure signal (a signal for starting a power failure process). ), A clear signal (a signal for clearing information stored in the storage device at the time of a power failure), and the like.

According to this embodiment, it is possible to prevent an illegal act of forcibly inputting an initialization signal to the control CPU and initializing the random number program. For the sake of specific description, it is assumed that a random number generated by the control CPU is updated and circulates within a numerical range of 0 to 249 every 4 ms.
The initial value is changed for each cycle (one cycle) (FIG. 7).
reference). As shown in FIG. 7, the random number is 0 to 2 in the first cycle.
49, the initial value is changed in the next cycle (for example, from 0 to 150), and the random numbers are 150 to 249, 0 to 14
9 will be circulated. For this reason, the time from when the random number becomes the initial value until the hit value is generated changes with the change of the initial value (t1 → t2 in the example in the figure). Therefore, the timing of the hit value is not known to the player, and it is possible to prevent an improper action (a so-called aiming action of a hit random number using a bodily sensation machine (metronome) or the like). However, even in the case of the initial value changing random number method, the initial value is a fixed value (usually 0) in the process of the first cycle when the random number program is started. Therefore, when the random number program is forcibly initialized and the program is restarted, the initial value at the time of restarting is always a fixed value. For this reason, the time from when the signal for initializing the random number program is input to the control device until the random number reaches the hit value is always constant, and the timing at which the random number becomes the hit value using this is known. This makes it possible to commit fraud. However, in the gaming machine according to the above-described embodiment, no space is formed on the back surface of the board that outputs the initialization signal to the control CPU, for attaching a fraudulent component. For this reason, in order to attach an illicit component, it must be attached to the surface of the substrate, so that the addition of the illicit component can be easily found.

[0012]

Hereinafter, an embodiment in which the present invention is applied to a first-class pachinko machine will be described with reference to the drawings. FIG. 1 is a front view showing the appearance of the pachinko machine. As shown in FIG. 1, a symbol display device 1 is provided on a game board surface 12 of a pachinko machine 10.
4. The first-type starting port 30, the special winning port 34, and the like are appropriately arranged. The first type starting port 30 is a starting port sensor (not shown;
However, a pachinko ball that has won the first-type start-up port 30 is detected by the start-up port sensor. The special winning opening 34 has an opening / closing lid 36, and the opening / closing lid 36 is opened and closed by a solenoid (not shown; however, shown in FIG. 3) under specific conditions. The period during which the opening / closing lid 36 is opened ends, for example, whichever comes first until a predetermined number (generally, 10) of pachinko balls are won in the special winning opening 34 or until 30 seconds elapse after opening. I do. Symbol display device 14
Is provided with a symbol display 22 for variably displaying a special symbol.
The symbol display unit 22 performs a special symbol change display when a specific condition is satisfied (for example, a win of a pachinko ball into the first-type start-up port 30). The special symbol fluctuated and displayed on the symbol display 22 indicates to the player that the special game state (a state in which the special winning opening 34 is opened; a state advantageous to the player) is changed according to the display mode when the fluctuation is stopped. It has a function to make it recognized. A pachinko ball that has won a winning opening, such as the first-type start-up opening 30 and the special winning opening 34, is detected by a winning ball sensor (not shown) provided on the back side of the game board surface 12, and similarly on the back side of the game board surface 12. A pachinko ball is paid out from a prize ball device (not shown) assembled in the device. The above prize ball device,
The operation is controlled by a prize ball control unit described later.

The pachinko machine 10 has the above-mentioned gaming board surface 1
In addition to 2, an upper plate 46 for storing pachinko balls including prize balls and rental balls is provided. On the back side of the upper plate 46, there are provided speakers 48 for generating a sound effect when a pachinko ball wins in each of the above-mentioned winning openings, a sound effect when a special symbol is displayed on the symbol display 22 in a fluctuating manner, and the like. ing. Below the upper plate 46, a lower plate 40 for temporarily storing pachinko balls when the pachinko balls stored in the upper plate 46 are full,
An ashtray 42 for holding cigarette butts is provided.
The structures and the like of these devices are the same as those of a known pachinko machine, and thus detailed description thereof will be omitted.

Next, the structure of the electrical system of the pachinko machine 10 shown in FIG. 1 will be described with reference to FIGS. FIG. 2 shows FIG.
FIG. 3 is a rear view of the pachinko machine shown in FIG. 3, and FIG. 3 is a block diagram showing a configuration of an electric system of the pachinko machine shown in FIG.
As shown in FIG. 2, the electrical system of the pachinko machine 10 according to the present embodiment, like the conventional pachinko machine, uses A control device (hereinafter, referred to as a main control unit) 200 for controlling is mainly configured. The main control unit 200 includes a prize ball control unit 300, a sound control unit 40
0, a control unit such as a display control unit 500 is connected. The prize ball control unit 300 controls the prize ball device 40 based on the control information (command data) transmitted from the main control unit 200. The sound control unit 400 controls the speaker 48 based on the control information (command data) transmitted from the main control unit 200.
Is controlled to generate a sound effect. Display control unit 500
Controls the symbol display 22 based on the control information (command data) transmitted from the main control unit 200. In addition, the main control unit 200 is electrically connected to a winning ball sensor 50, a starting port sensor 32, a solenoid 35 (a driving device for opening and closing the flat lid 36 of the special winning port 34), and the like. The main control unit 200 is connected to the hall computer 600 when installed in the game hall, and outputs business information such as the number of big hits. In addition,
The configuration and the like of the sound control unit 400 and the display control unit 500 may be the same as those provided in the conventional pachinko machine,
Since the present invention is not particularly characterized, its detailed description is omitted.

Hereinafter, the main control unit 200 and the prize ball control unit 3
00, the power supply device 100, and the structure of the relay board 700 will be described. The main control unit 200 and the prize ball control unit 30
0, the power supply device 100 is provided on the back of the pachinko machine. The main control unit 200 includes a CPU 202
(A control CPU described in the claims), and storage devices such as a ROM 202a and a RAM 202b connected to the CPU 202;
It comprises an input processing circuit 204, an output processing circuit 208, a communication control circuit 206 and the like. CPU 202 is a ROM
The pachinko machine 10 is controlled in accordance with the control program stored in 202a. For example, when a winning detection signal is received from the starting port sensor 32, a random number is obtained, and a command is output to the display control unit 500 to variably display a special symbol based on the obtained random number. Specifically, when the obtained random number is a hit value, a command is output to the display control unit 500 so as to stop the special symbol from displaying the big hit, and the opening operation of the special winning opening 34 (that is, the solenoid 35 (Opening control of the opening / closing lid 36). On the other hand, if the obtained random number is not a hit value, a command is output to the display control unit 500 so that the special symbol stops displaying the loss. Note that the random numbers obtained in the above-described processing are generated by the CPU 202 executing a random number program of an initial value changing type random number system. The winning ball information transmitted from the winning ball sensor 50, the starting port sensor 3
Various data, such as the start-up opening information transmitted from 2 and probability variation information indicating that the special symbol displayed on the symbol display 22 has a high probability of being a "big hit", are stored. This R
The AM 202b includes a power supply device 100 and a main control unit 20.
The electric charge stored during energization in the capacitor provided in the power supply line connecting the power supply line to the power supply line when the energization is interrupted (at the time of power failure). Thus, the contents stored in the RAM 202b are retained even while the power is turned off. In addition, as a method of retaining the stored contents of the RAM 202b when the power is turned off, for example,
In addition to the method described above, by using a non-volatile flash memory as the RAM 202b, it is also possible to retain the storage contents stored in the RAM 202b. The input processing circuit 204 includes a winning ball sensor 50, a starting port sensor 32,
This is a circuit that processes signals transmitted from the initialization switch 102, the power failure detection unit 106, and the like so that the CPU 202 can handle them. Further, the output processing circuit 208 includes the solenoid 3
5 is a circuit for outputting a drive signal to the communication control circuit 20.
6 is a prize ball control unit 300, a sound control unit 400, a display control unit 5
00, command information is transmitted to the hall computer 600, and a notification signal for notifying that the detection signal has been received within a predetermined period after the input of the initialization signal and sales information such as the number of jackpots is output. It is a circuit for performing.

The prize ball control unit 300 includes a main control unit 200
Receiving the command data (ball payout information) transmitted from the prize ball device 40, a prize ball payout process of paying out a predetermined number of prize balls from the prize ball device 40 is performed. The prize ball control unit 300 includes the main control unit 1
00, CPU 302, ROM 302a, RAM 3
02b, a communication control circuit 303, an input processing circuit 304, an output processing circuit 306, and the like. CPU 302
Performs prize ball payout control of the prize ball device 40 in accordance with a control program stored in the ROM 302a. ROM
The control program stored in the RAM 302a includes a RAM
A program for initializing the storage contents of 302b is included. The RAM 302b stores various data such as ball payout information and input / output signals. This RAM 302b
Also, similarly to the RAM 202b of the main control unit 100, the contents stored in the RAM 302b are retained while the power is cut off by using the electric charge stored in the capacitor during energization. Note that the content of the RAM 302b may be held by using a nonvolatile flash memory as in the case of the main control unit 100.
The communication control circuit 303 is a circuit for receiving data transmitted from the main control unit 200, and the input processing circuit 304 is a circuit for receiving a signal output from the initialization switch 102 and the power failure detection unit 104. And also
The output processing circuit 306 receives the data sent from the CPU 302 and outputs a drive signal for performing a prize ball payout control (drive control of a prize ball motor (typically a stepping motor)) to the prize ball device 40. The output circuit.

The power supply device 100 includes a voltage transformer 106 for supplying electric power of a predetermined potential to each of the electric devices mounted on the pachinko machine 10, and a power failure detector 104 for detecting power interruption.
Various switches such as a power switch 108 and an initialization switch 102 are provided. The voltage transformer 106 is
Main control unit 200, prize ball control unit 300, sound control unit 40
0, while supplying electric power of a predetermined potential to the display control section 500, various electric devices (the winning ball sensor 50, the starting port sensor 3).
2, symbol display 22, solenoid 35, prize ball device 40,
A power of a predetermined potential is supplied to the speaker 48 and the like. That is, the voltage transformer 106 rectifies and smoothes the AC input from the AC power supply in the hall by the rectifier circuit, and converts the rectified and smoothed DC power into a voltage suitable for each electrical device by the regulator and supplies the voltage. . In FIG. 3, power supply lines to devices other than the main control unit 200 and the award ball control unit 300 are not shown. Power failure detection unit 106
Monitors the AC input from the AC power supply of the hall continuously, determines that the power supply has been cut off when the waveform continues to be lost for a predetermined period, and sends the main control unit 200 and the prize ball control unit 300 Outputs a power failure signal. Power switch 1
08: ON / OF of AC input from AC power supply of hall
This is a switch for operating F, and is provided on the back of the pachinko machine as shown in FIG. Initialization switch 1
Reference numeral 02 denotes a switch operated by a hall clerk at the start of business after recovery from a power failure, and the like.
0, operated to initialize the processing of the award ball control unit 300. Therefore, a fraudulent person trying to initialize the random number program executed in the main control unit 200 is attached to the relay board 700 interposed between the initialization switch 102 and the main control unit 200 by a fraudulent component (illegal). IC) is attached, and an initialization signal is output from the unauthorized IC to the main control unit 200.

Next, the power supply unit 100 and the main control unit 20
0, the structure of the relay board 700 interposed between
This will be described with reference to FIGS. 4 is a diagram schematically illustrating a connection relationship between the power supply device, the main control unit, and the relay board, FIG. 5 is a diagram schematically illustrating a mounting structure of the relay board, and FIG. 6 is a board mounting surface of the relay board. FIG. 6 is a diagram showing an example of a concave portion formed in FIG. As shown in FIG. 4, the relay board 700 is fixed to a cover 250 to which a main control unit 200 (a board box accommodating the main control unit 200 is shown in the figure) is attached by screws or the like. Relay board 7
00, connectors 710a and 710b (8-pin connectors) are attached to the surface of the connector 710.
a and 710b are electrically connected by wiring printed on the substrate. One end of the harness 110 is inserted into the connector 710a, and the other end of the harness 110 is connected to the power supply device 100. One end of the harness 120 is inserted into the connector 710b, and the other end of the harness 120 is connected to the main control unit 200. Therefore, various signals (initialization signal, power failure signal, power signal) output from the power supply device 100 are input to the main control unit 200 via the harness 110, the connector 710a, the connector 710b, and the harness 120.

The relay board 700 is attached to the cover 250 by an attachment structure shown in FIG. That is, the concave portion 2 is provided on the substrate mounting surface 250a of the cover 250.
52 are formed. The concave portion 252 is provided at a position corresponding to the terminal portion (soldered portion) 712 of the connector 710a (710b) of the relay board 700, and has a shape and depth corresponding to the arrangement and the protruding length of the terminal portion 712. Is formed. For this reason, the relay board 700 is
, The terminal portion 712 of the connector 710a (710b) is housed in the concave portion 252, and the relay substrate 700
Is in close contact with the substrate mounting surface 250a.

Therefore, in this embodiment, the relay board 70
If an unauthorized IC is to be mounted on the relay board 700, it cannot be mounted on the back surface of the relay board 700, but must be mounted on the front face of the relay board 700. Therefore, unlike the related art, even if an unauthorized IC is attached to the relay board 700, it can be immediately detected. That is, in the conventional board mounting structure, as shown in FIG. 5B, the terminal section 712 protruding from the back surface of the relay board 700 causes the board mounting surface 250 a
A boss 254 is erected on the relay board 70.
0 was wearing a screw. Therefore, a space is formed between the relay board 700 and the board mounting surface 250a by the length of the boss 254, and a fraudulent IC 714 (in FIG.
(Indicated by the dotted line). However, in this embodiment, since the relay substrate 700 comes into close contact with the substrate mounting surface 250a, the relay substrate 700
There is no space for attaching an unauthorized IC on the backside of the device. Therefore, if an unauthorized IC is to be mounted, the relay substrate 700
It is necessary to attach the IC to the surface, and it is possible to easily detect whether or not the unauthorized IC is attached.

The preferred embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention may be embodied in various modified and improved forms based on the knowledge of those skilled in the art. Can be. For example, the shape of the concave portion formed on the substrate mounting surface can take various forms according to the shape of the convex portion (terminal portion in the above embodiment) projecting from the mounting surface side of the substrate. For example, the concave portion formed on the substrate mounting surface is
As shown in FIG. 6A, the shape may be such that a plurality of protrusions can be accommodated, or as shown in FIG. Is also good. In the above-described embodiment, the substrate and the substrate mounting surface are brought into close contact with each other by forming a concave portion on the substrate mounting surface. However, the mounting structure for bringing the substrate into contact with the substrate mounting surface is not limited to the above-described structure. Instead, various mounting structures can be used. For example,
A structure may be employed in which a concave portion is formed on the substrate mounting surface side of the substrate, and the terminal portion projects into the concave portion. With such a structure, the protrusions do not project from the substrate mounting surface, and the substrate can be brought into close contact with the substrate mounting surface. Further, for example, a spacer manufactured separately may be disposed between the substrate and the substrate mounting surface, so that a space for mounting an unauthorized IC may be eliminated.

[Brief description of the drawings]

FIG. 1 is a front view showing the appearance of a pachinko machine according to one embodiment of the present invention.

FIG. 2 is a rear view of the pachinko machine shown in FIG.

FIG. 3 is a block diagram showing a configuration of an electrical system of the pachinko machine shown in FIG. 1;

FIG. 4 is a diagram schematically illustrating a connection relationship between a power supply device, a main control unit, and a relay board;

FIG. 5 is a diagram schematically showing a mounting structure of a relay board;

FIG. 6 is a view showing an example of a concave portion formed on the board mounting surface of the relay board;

FIG. 7 is a diagram for explaining an initial value changing type random number system;

[Explanation of symbols]

 10, pachinko machine 48, speaker 100, power supply device 102, initialization switch 108, power switch 200, main control unit 250, cover 250a, board mounting surface 252, recess 300, prize ball Control unit 400, sound control unit 500, display control unit 700, relay board 710, connector 712, terminal unit

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazunari Tanaka No. 1 Nishinokawa, Oki-mura, Nishiharu-cho, Nishikasugai-gun, Aichi F-term (reference) 2C088 BC47 EA10

Claims (5)

[Claims] 1. A game machine having a board electrically connected to a control CPU for controlling the game machine, wherein a board mounting surface on which the board is mounted has a projection formed on the board mounting surface side of the board. A gaming machine, wherein a concave portion corresponding to a part is formed. 2. The gaming machine according to claim 1, wherein the recess has substantially the same shape as the shape of the projection. 3. A plurality of protrusions are formed on the substrate mounting surface side of the substrate, and a plurality of recesses are formed on the substrate mounting surface corresponding to each of the plurality of protrusions. Item 3. The gaming machine according to item 1 or 2. 4. A plurality of convex portions are formed on the substrate mounting surface side of the substrate, and one or more concave portions are formed on the substrate mounting surface corresponding to the plurality of convex portions, and at least one of the concave portions is formed. The gaming machine according to claim 1, wherein one accommodates two or more projections. 5. A game machine comprising a board electrically connected to a control CPU for controlling the game machine, wherein the board is mounted on a board mounting surface such that the board is substantially in close contact with the board mounting face. A gaming machine characterized by being attached to a game machine.