JP2005348810A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the fraudulence such as fraudulent change of a CPU, etc. mounted inside a game machine when a game parlor is closed or when the game machine is carried. <P>SOLUTION: An abnormality detecting means (a sensor 51) receives the electric power fed from a main power supply 331 or a spare power supply 332, and always monitors whether the CPU is mounted on a control board or not. If the abnormality detecting means (the sensor 51) detects that the CPU is detached from the control board, the abnormality detecting means outputs an abnormality detection signal to an announcing means (an LED 53) to announce the abnormality. The game machine also has a retaining circuit driven by the spare power supply 332 for retaining the abnormality detection signal, so that the state can be retained till the CPU is reset if the CPU is once detached. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pachinko machine, a slot machine, and other gaming machines, and more particularly to a gaming machine in which measures are taken to prevent fraud.

  As a gaming machine, for example, a slot machine disclosed in Patent Document 1 is known. As shown in FIG. 1 of the document 1, the slot machine incorporates a reel mechanism having three rows of reels 19a, 19b, 19c on the front surface of the main body, and the side of these reels 19a, 19b, 19c. A display panel (EL lamp) 3 as a display device for performing so-called effect display is provided on the (right wall surface).

In such a configuration, when the rotation start knob is pressed by the player, the game starts, the reels 19a, 19b, 19c are rotated at a predetermined speed, and then the reels 19a, 19b, 19c are turned on when the stop button is pressed. Stop sequentially. When a specific pattern (for example, numeral 7) drawn on the three stopped reels 19a, 19b, and 19c is aligned on the winning line, it becomes a “hit”, and the display panel 3 displays FIG. By giving the display shown in the above, it is notified that a big hit has been made, and the player is given a pleasant feeling.
JP 2001-170250 A

  By the way, in a slot machine, for example, a CPU as an arithmetic processing unit and various control boards composed of ROM and RAM as storage elements are installed inside, and the CPU is in accordance with a system program stored in the ROM. The operation of the gaming machine is controlled by performing arithmetic processing. For example, a control board called a main control board draws a jackpot and manages the number of winnings that are continuously generated at the jackpot. Each slot machine installed in a hall (game room) On the other hand, numerical information relating to the winning or losing of the game, such as the probability of generating the jackpot or the number of consecutive winnings, is set in advance on the main control board.

For this reason, some players unfairly pay a high payout by, for example, removing a CPU or microcomputer from the main control board and replacing it with another CPU that has been changed to a setting value that allows games to be played at a higher payout rate. There are those who want to get to. Such an illegal act may cause a great deal of damage to the hall side, and countermeasures have been desired.
As a measure to prevent such illegal acts, for example, by attaching a detection device to a gaming machine to notify the manager of the hall when the door of the gaming machine is opened, an unauthorized person by a person other than the manager Measures to prevent setting changes have been proposed.

  However, in the conventional detection device described above, even if, for example, a gaming machine is turned off at night and a person who has illegally entered the hall outside the business hours opens the gaming machine door and replaces electronic components, Since the detection device does not operate in a state in which is turned off, it has not always been possible to monitor and prevent fraud. Similarly, while transporting the gaming machine, the detection device does not operate when the power is turned off, and therefore, illegal activities cannot always be monitored and prevented.

  The present invention has been made in view of the above circumstances, and provides a gaming machine capable of preventing damage and suppressing damage by constantly monitoring fraud such as illegal replacement of electronic components. The purpose is that.

  In order to solve the above-described problems, the present invention is a gaming machine in which power is supplied by a main power supply and operation is controlled by a control board on which a CPU is mounted, and detects a mounting state of the CPU on the control board A sensor, an abnormality detection means for outputting an abnormality detection signal when the sensor detects a state in which the CPU is not mounted on the control board, and an abnormal state in response to the abnormality detection signal from the abnormality detection means. And a standby power supply for supplying power to the sensor, the abnormality detection means, and the notification means when the main power supply is shut off.

  Further, in the present invention, the abnormality detection means includes a first current supply circuit that supplies current to the sensor from the main power supply or the standby power supply, and a current to the notification means when an abnormality is detected by the sensor. A second current supply circuit to be supplied and a holding circuit for holding the state when the abnormality is detected are provided.

  In the present invention, the standby power supply is charged when main power is supplied to the control board, and supplies the charged power to the control board when the main power is shut off. Features.

  According to the present invention, the sensor can always monitor whether the CPU is mounted on the control board by the main power supply or the standby power supply, and when detecting the state where the CPU is removed from the control board, The means can output an abnormality detection signal to the notification means to notify the abnormality. Since these are also driven by a standby power supply when the main power supply is cut off, the CPU mounting status is always monitored even when the main power supply is cut off, such as when closing a store or carrying a gaming machine. Then, an abnormality can be notified.

  In addition, by providing a holding circuit that holds an abnormality detection signal driven by a standby power supply, once the CPU is removed, its state is held and notified through the notification means. Of course, it is possible to know the fact that there was fraud at the time of closing or transportation. Furthermore, when the main power supply is cut off, the standby power supply supplies the power charged to the control board, so that the mounting state of the CPU can always be monitored and an abnormality can be notified. As described above, an illegal act such as an intruder illegally replacing the CPU can be prevented at all times, and the safety in the gaming machine can be improved in the same way during transportation.

  Preferred embodiments of the present invention will be described below with reference to the drawings. Here, a slot machine 1 will be described as a gaming machine to which the present invention is applied. FIG. 1 is a perspective view showing the external structure of the slot machine 1, and FIG. 2 is a view showing the internal structure of the slot machine 1. In FIG. 1, the slot machine 1 includes a box-shaped casing 3 and a front door 2 attached to the casing 3 and a hinge mechanism so as to be opened and closed.

  On the side of the front door 2 facing the player, an upper panel portion 21, a middle panel portion 22, and a lower panel portion corresponding to a so-called decorative plate, each of which is designed and designed substantially integrally with hard plastic. 23 is provided. An operation console 24 is provided integrally between the middle panel portion 22 and the lower panel portion 23, which slightly protrudes toward the player and on which switches to be described later for performing game operations are arranged. Note that the upper panel portion 21, the middle panel portion 22, the lower panel portion 23, and the console 24 face the player side, and these constitute a “front panel portion”.

The upper panel portion 21 is provided with an effect lamp 211 formed of a high-intensity light emitting diode or the like, and sound emitting portions 212a and 212b each having a slit groove hole with a speaker (not shown) that emits an effect sound effect attached to the back side. It is installed.
A liquid crystal display unit 213 is disposed between the sound emitting units 212a and 212b so as to face a display window 214 formed by inserting a transparent hard plastic plate or the like. The liquid crystal display unit 213 displays an image related to the game effect and is viewed through the display window 214.

  The middle panel portion 22 is provided with a panel surface 221 formed of a hard plastic plate or the like. A substantially rectangular transparent display window 222 is formed substantially at the center of the panel surface 221, and the three reels 311a, 311b, and 311c attached in the housing 3 can be seen through the display window 222. .

  Here, although details will be described later, the spinning device 31 installed in the housing 3 is configured by arranging three cylindrical reels 311a, 311b, and 311c in the rotation axis direction, and each reel 311a. , 311b, 311c, a plurality of types of symbols are drawn along the circumferential direction. Then, the player can visually check the three symbols in the vertical direction drawn on one reel through the display window 222 and the symbols in the three rows of reels arranged in the horizontal direction. Further, the reels 311a, 311b, and 311c are rotated and stopped in accordance with the player's instruction operation, whereby the type of the displayed reel symbol is changed.

  In addition, on the panel surface 221 of the middle panel unit 22, an effect display unit 223 for effecting and displaying information related to a gaming state such as an internal winning for a winning combination by turning on a lamp (not shown) provided on the back side, A plurality of light emitting diodes are arranged in a matrix and each light emitting diode selectively emits light to produce a dot image, and a game medal (hereinafter simply referred to as “reserved”) in the slot machine 1. A status display LED 225 is provided for displaying numerical information such as the number of “medals”, the number of medals won by winning, or the number of winning combinations.

Further, on the panel surface 221, the usage method of the slot machine 1, explanation of game contents, and the like are drawn by characters and the like designed to enhance the visual effect.
On the side of the middle panel portion 22, there are provided effect lamps 226a and 226b formed of fluorescent lamps or high-intensity light emitting diodes. A plurality of effect lamps 211, 226a, and 226b described above blink in accordance with the progress of the game, thereby enhancing the effect of the game.

On the lower side of the middle panel portion 22, an operation console 24 having a flat surface slightly inclined downward toward the player side is formed. On the right side of the plane of the console 24, a medal insertion unit 241 for inserting medals is provided, and on the left side of the plane, three bet buttons 242, 243, and 244 that are push button switches are provided. ing.
The bet buttons 242, 243, and 244 are button switches for presenting the number of medals to bet on one game of the slot machine. When the game is started, the bet button 242 is pressed, and one medal is bet on the game from the stored medals. Similarly, two or three medals are bet by pressing the bet button 243 or 244, respectively. Note that the bet button 244 is particularly called a “max bet button” because it is provided to present the maximum number of medals that can be bet on one game.

A start lever 245 for instructing the start of rotation of the reels 311a, 311b, 311c is provided on the left side of the front surface of the console 24, and the rotation of the reels 311a, 311b, 311c is stopped almost at the center of the front surface of the console 24. Three stop buttons 246a, 246b, and 246c, which are push button switches for instructing, are provided corresponding to the reels 311a, 311b, and 311c.
The start lever 245 is provided with a swingable operation rod having a spherical operation knob at the tip, and is turned on when the operation rod is tilted, and automatically when the hand is released from the operation rod by the biasing force of the spring. It is formed of a switch unit that returns to a position and is turned off. The stop buttons 246a, 246b, and 246c are switches for independently stopping the rotating reels 311a, 311b, and 311c by pressing them.

That is, when the player presses one of the bet buttons 242, 243, and 244, the number of medals bet on the game is presented, and when the start lever 245 is tilted, the reels 311a, 311b, and 311c are simultaneously moved. Rotate to. At this time, the slot machine 1 performs a lottery of a winning combination (winning winning combination) by internal processing (hereinafter referred to as “internal lottery”).
When each reel 311a, 311b, 311c reaches a predetermined number of revolutions, the reel stop operation by the stop buttons 246a, 246b, 246c is ready. In this state, when the player presses the stop buttons 246a, 246b, and 246c in any order, the corresponding reels are controlled to stop. When the symbols displayed by the stopped three reels 311a, 311b, 311c are aligned on an effective line in a combination corresponding to the winning combination in the above-described internal lottery, a winning combination is obtained, and according to the type of winning combination. A number of medals are distributed to the player.

  A key hole 247 into which a key for unlocking the front door 2 is inserted is provided on the front right side of the console 24. When an administrator of the slot machine 1 inserts a predetermined key into the keyhole 247 and performs an unlocking operation, the front door 2 attached to the housing 3 can be opened forward by a hinge mechanism, and the front door 2 can be opened. These are automatically locked when closed to the housing 3 side.

  The lower panel portion 23 is provided with a panel 231 for introducing game contents of the slot machine 1 or appearance characters. Also, on the lower side of the panel 231, there are provided a discharge port 232 for discharging medals and a tray 233 for receiving the discharged medals. Further, adjacent to the discharge port 232, sound emitting portions 234a and 234b formed from a large number of holes are provided, and a speaker described later that emits effect sound effects is disposed on the back side of the sound emitting portions 234a and 234b.

Next, the back surface structure of the front door 2 and the internal structure of the housing 3 will be described with reference to FIG. FIG. 2 shows a state in which the front door 2 is opened from the housing 3. In the figure, a plurality of high-intensity light-emitting diodes 251 that are light sources of the effect lamp 211 are arranged on the upper surface of the back surface of the front door 2, and the speakers 252a and 252b are opposed to the sound emitting units 212a and 212b. Is attached. Although not shown in FIG. 2, the display window 214 described above is positioned between the speakers 252 a and 252 b, and the liquid crystal display unit 213 is attached with the display surface facing the display window 214. Further, a sub-control board 200 formed of an electric circuit board is attached to the back side of the liquid crystal display unit 213.
Although the details will be described later, the operation of the entire slot machine 1 is comprehensively controlled by the main control board 100 provided on the housing 3 side, and the sub control board 200 controls the display of the liquid crystal display unit 213. In addition, control relating to game effects such as control of effect lamps 213, 226a, 226b and speakers 252a, 252b is mainly performed.

  Below the sub-control board 200, a panel surface 221 having a display window 222 for viewing the reels 311a, 311b, 311c is attached. Below the display window 222, an electric circuit (relay) substrate called a central display substrate 240 is provided. The central display board 240 is electrically connected to switches such as bet buttons 242, 243, 244, a start lever 245, stop buttons 246 a, 246 b, 246 c provided on the console 24. Wiring connection is performed so that output signals of the switches are transferred to the main control board 100.

  Below the central display board 240, a selection mechanism 261 that distributes the input material to be inserted into the medal insertion unit 241 according to whether it is a regular medal or a foreign object and a medal distributed by the selection mechanism 261 are provided in the housing 3. A guide member 262 for guiding the hopper device 321, a guide member 263 for guiding the foreign matter distributed by the selection mechanism 261 to the discharge port 232, and a guide for guiding medals discharged from the hopper device 321 to the discharge port 232. A member 264 is provided. In addition, speakers 253a and 253b are attached to both sides of the discharge port 232 so as to face the sound emitting units 234a and 234b described above, so that the effect sound is output via the sound emitting units 234a and 234b. It is configured.

Next, a rotating drum device 31 including reels 311a, 311b, and 311c is provided at the approximate center in the housing 3. The rotating device 31 is positioned and attached to a predetermined frame (reference number omitted) of the housing 3 so that the reels 311a, 311b, and 311c face the display window 222 when the front door 2 is closed to the housing 3 side. ing. On the upper surface of the spinning device 31, there is provided a spinning device substrate 310 (not shown) that is an electric circuit board for controlling a stepping motor that rotationally drives the reels 311a, 311b, and 311c.
A main control board 100 that centrally controls the overall operation of the slot machine 1 is attached above the rotating drum 31. A hopper device 321, an auxiliary storage unit 322 for storing medals overflowing from the hopper device 321, and a main power supply device 331 are provided below the spinning device 31. On the side surface of the main power supply device 331, a power supply device substrate 330 corresponding to a so-called switchboard is provided. Further, an external central terminal board 390 that can be connected to a management computer called a “hall computer” installed in the game hall is attached to the inner wall on the upper right side of the housing 3.

  The main control board 100, the sub control board 200, the central display board 240, the spinning device board 310, the power supply board 330, and the external concentrated terminal board 390 are all insulative resins on which conductive wiring patterns are formed. An electronic circuit such as an integrated circuit (IC), a transistor, a resistor, and a capacitor is mounted on the substrate and is formed as a so-called electric circuit substrate connected by wiring. The main control board 100 and the sub control board 200 each have a unit structure housed in a hard plastic case.

  Next, a control system provided in the slot machine 1 will be described with reference to the block diagram of FIG. First, although not shown in FIG. 2 for convenience of explanation, the main control board 100 includes a sub-control board 200, a rotation device board 310, a central display board 240, a power supply board 330, and an external concentrated terminal board 390. Each is connected by a distribution cable.

The main control board 100 is equipped with a CPU (or a one-chip microcomputer) as an arithmetic unit, a ROM as a semiconductor memory, and electronic components such as a RAM, and a system program and a slot machine game stored in advance in the ROM. The CPU executes the program for the above and sends a control signal including a predetermined command to each of the control boards 200, 310, 240, 330, and 390, thereby causing each of the distributed control to be performed. Centralized control.
The central display board 240 is connected to the bet buttons 242, 243 and 244, the start lever 245 and the stop buttons 246a, 246b and 246c, and functions as a relay board for transferring output signals output from these switches to the main control board 100. To do. In addition, the central display board 240 transfers an output signal output from the game medal detection sensor provided in the selection mechanism 261 to the main control board 100 to inform the medal insertion unit 241 of the number of medals inserted and To inform you of the clogging and clogging. Further, a monitor LED 248 is connected to the central display board 240, and when the slot machine 1 is abnormal, error information thereof is displayed.

  The sub-control board 200 is equipped with a CPU, ROM and RAM, which are semiconductor memories, and a VDP (Video Display Processor) for performing control to display an effect image on the liquid crystal display unit 213. The sub-control board 200 is connected to effect lamps 211, 226a, 226b, speakers 252a, 252b, 253a, 253b, a liquid crystal display unit 213, and various game information display units such as effect display units 223, 224. When a control signal suggesting the start of production is supplied from the main control board 100, the production lamps 211, 226a, 226b and the speakers 252a, 252b, 253a, 253b are driven, and the production video is displayed on the liquid crystal display unit 213. By performing the display, an effect appealing to the visual and auditory sense of the player is performed.

  Stepping motors 312a, 312b, and 312c that rotationally drive the reels 311a, 311b, and 311c and photosensors 313a, 313b, and 313c that detect the rotational positions of the reels 311a, 311b, and 311c are connected to the spinning device substrate 310. ing. When the control signal indicating that the reels 311a, 311b, and 311c are to be rotated or stopped is supplied from the main control board 100, the spinning device board 310 receives the detection signals from the photosensors 313a, 313b, and 313c. While appropriately grasping the rotation position of each reel 311a, 311b, 311c, the drive pulse signal to the stepping motors 312a, 312b, 312c is controlled to control the operation of the reels 311a, 311b, 311c.

The power supply device board 330 is formed with a power distribution circuit that distributes various power supply voltages generated by the main power supply device 331 to the hopper device 321 and other parts, and system power necessary for the operation of the slot machine 1 is supplied from the power distribution circuit. Supply. When the power supply device board 330 receives a command to pay out medals from the main control board 100, the power supply device board 330 controls the hopper device 321 to pay out medals.
The external concentrated terminal board 390 is a terminal board for sending a status signal of the slot machine 1 output from the main control board 100 or a signal indicating the progress of the game to the hall computer.

The slot machine 1 having such a configuration enters a standby state when the medals are paid out to the previous player. In this standby state, for example, when a new player inserts a medal into the medal insertion unit 241, it is possible to play a game. It becomes.
When the player inserts a medal into the medal insertion unit 241 and presents the number of medals to bet on the game by any of the bet buttons 242, 243, 244, and then turns on the start lever 245, the main control board 100 is 3 The reels 311a, 311b, 311c are started to rotate simultaneously. At the same time, the winning combination is lottery-drawn, and if there is a winning combination, a flag corresponding to the winning combination is stored.

Next, when the player turns on the stop buttons 246a, 246b, and 246c in an arbitrary order, the main control board 100 performs control to sequentially stop the reels accordingly. When it is detected that all the reels 311a, 311b, and 311c have stopped, it is determined whether or not the symbol displayed on each reel matches the symbol combination related to the winning combination corresponding to the flag.
That is, among the nine symbols stopped facing the display window 222, they are arranged in three sets of symbols arranged on three horizontal lines in the upper, middle, and lower rows, and two diagonal lines on the right and left sides. Two sets of symbols are examined, and when any one of the symbols satisfies the winning combination conditions, it is determined that the winning combination corresponding to the above flag is won. When winning a winning combination is confirmed, medals with a predetermined number of payouts are paid out to the player according to the type of the winning combination.

  Here, apart from the normal game, the slot machine 1 is provided with a jackpot winning combination in which a special game that can be awarded several times in succession can be continuously performed. And this slot machine 1 can set the probability that this jackpot winning combination will occur to a plurality of levels. For example, at the setting level 1, the probability that the jackpot winning combination is won internally is 1/350, and at the setting level 6, the probability is 1/300. In this way, by changing the setting level appropriately, the payout rate of the slot machine 1 can be changed. The setting level is stored in a storage element in a CPU (or microcomputer) provided in the main control board 100 of the slot machine 1 or a RAM of the main control board 100, and a hole manager or the like is stored in the slot machine 1. This setting level can be changed by performing a predetermined operation.

Next, the abnormality detection device provided in the slot machine 1 will be described with reference to FIGS. 4 is a partial sectional view showing the structure of a CPU sensor provided in the abnormality detection device, FIG. 5 is an electric circuit diagram of the abnormality detection device, and FIG. 6 is a flowchart showing the operation of the abnormality detection device. 7 and 8 are diagrams showing an example of a connection form of the standby power supply.
Referring again to FIG. 3, the abnormality detection device includes a CPU sensor 50 that detects the mounting state of the CPU on the main control board 100, a battery 51 as a standby power supply, a notification unit 53, and a power supply device board 330. 52 is connected by wiring.

Here, the structure of the CPU sensor 50 will be described with reference to FIG. FIG. 4 is a partial cross-sectional view showing the structure of the CPU sensor 50 provided on the main control board 100.
In FIG. 4, a CPU is mounted on the main control board 100 through a resin socket 101 soldered to the board. The socket 101 is formed with a groove for fitting the CPU. A light emitting element 50a that emits sensing light toward the CPU and a light receiving element that receives the sensing light reflected by the back surface of the CPU are formed on the bottom surface of the groove. A CPU sensor 50, which is a reflective photosensor composed of the element 50b, is embedded.

When the CPU is normally attached to the socket 101, the CPU sensor 50 is turned on when sensing light from the light emitting element 50a is reflected by the back surface of the CPU and received by the light receiving element 50b. On the other hand, when the CPU is removed from the socket 101, the sensing light is not received by the light receiving element 50b and the CPU sensor 50 is turned off. Thereby, the CPU sensor 50 detects the mounting state of the CPU and sends a detection signal to the abnormality detection unit 52 via the wiring cable.
The CPU sensor 50 described above may be a micro switch that turns on when the CPU is attached to the socket 101 and turns off when the CPU is removed from the socket 101. The CPU sensor 50 may also be installed on the sub-control board 200 and monitor the mounting state of the CPU mounted on the sub-control board 200.

Next, the circuit configuration of the abnormality detection device will be described. In FIG. 5, a battery 51 as a standby power supply is a battery as a constant voltage source having a rating of 5 V, for example, and supplies power to the abnormality detection unit 52 at all times. The battery 51 may be a battery that can be charged from the power supply device substrate 330 described above as needed.
The notification means 53 connected as the output means of the abnormality detection unit 52 includes a plurality of light emitting diodes LED1. The light-emitting diode LED1 is provided, for example, on the front panel of the slot machine 1 and emits light to notify the periphery of the slot machine 1 of an abnormality. Further, the light emitting diode LED1 of the notification means 53 is built in the above-described effect lamps 211, 226a, 226b, and the anomaly of the slot machine 1 detected by the anomaly detection unit 52 is indicated in the effect lamps 211, 226a, 226b may notify.

Although not shown, the notification unit 53 may further include an amplifier and a speaker, and may generate a warning sound around the slot machine 1 as the light emitting diode LED1 is turned on. In this case, the above-mentioned speakers 252a, 252b, 253a, 253b provided on the front door 2 for use in the production of the slot machine 1 may be substituted for the speakers of the notification means 53.
Further, the notification means 53 is a monitor system installed in a manager room of a hall (game room), and may be connected to the slot machine 1 via a wiring cable and remotely operated. The notification means 53 is a communication control board that can be connected to a network system including a hall computer installed in a hall administrator room, and notifies the hall computer of an abnormality of the slot machine 1 via the network system. It may be a thing.

  The abnormality detection unit 52 includes a transistor Q1 that constantly supplies current from the battery 51 to the light emitting element 50a of the CPU sensor 50, and a transistor that outputs an abnormality detection signal by supplying current to the notification unit 53 when an abnormality is detected. Q2 is provided. The light receiving element 50b of the CPU sensor 50 is connected to the base of the transistor Q2, and when the CPU sensor 50 is on (when the CPU is attached to the main control board 100), the potential of the base of the transistor Q2 Is turned off to turn the transistor Q2 off, while when the CPU is removed from the main control board 100 and the CPU sensor 50 is turned off, a predetermined amount of current is supplied from the battery 51 via the resistor element R3 to the transistor Q2. The transistor Q2 is turned on by being supplied to the base, and the notification means 53 is driven.

Here, the abnormality detection unit 52 has a circuit configuration in which an abnormality is determined when the CPU sensor 50 is in an off operation, and an abnormality detection signal is output to the notification unit 53 in the subsequent stage. According to this, the connection with the CPU sensor 50 is broken, such as the connector of the main control board 100 provided with the CPU sensor 50 is removed or the wiring is cut, or the CPU sensor 50 does not function. Even in this case, since the abnormality detection unit 52 outputs an abnormality detection signal, safety is further improved.
Further, the abnormality detection unit 52 is connected to the power supply device substrate 330 described above, and an on / off signal indicating that the main power supply of the slot machine 1 is on or off is supplied via the connection terminal M1. Good. In this case, the abnormality detection unit 52 and the battery 51 are connected via, for example, the B contact relay SW1, and the on / off signal from the power supply board 330 is supplied to the control input terminal of the relay SW1. Then, when the main power supply of the slot machine 1 is on, the relay SW1 can be cut off so that the abnormality detection device is not operated.

Since this abnormality detection apparatus is driven by the battery 51 described above, it always operates in an infinite loop as shown in the flowchart of FIG. In this abnormality detection device, in step S101, the abnormality detection unit 52 constantly monitors the detection signal of the CPU sensor 50 to always determine whether or not the CPU has been removed. Here, since the CPU is normally mounted on the main control board 100, the CPU sensor 50 is on.
In step S101, for example, when the CPU is removed from the main control board 100 by a person who has illegally entered the hall, the CPU sensor 50 is turned off, and the transistor Q2 of the abnormality detection unit 52 is turned on to supply current to the notification means 53. To do. In step S102, the notification means 53 receives this and causes the light emitting diode LED1 to emit light or sound a speaker or the like, thereby notifying the periphery of the slot machine 1 or an administrator or the like.

7 and 8 show connection examples of the power supply system. In either case, the configuration of the power supply device substrate 330 described above is shown. For example, in FIG. 7, a power supply board 330 is connected to a load circuit 200 including a control board via a power supply circuit 333 with a main power supply 331 and a standby power supply 332 such as a battery.
Here, the main power supply 331 and the standby power supply 332 are coupled by a diode (D) in the power supply circuit 333. When the main power supply 331 is turned on by the function of this diode, the main power supply 331 The supplied power is converted into a required voltage of 5V to 24V internally and supplied to the load circuit 200. At this time, the standby power supply 332 is charged at the same time.
On the other hand, when the main power supply 331 is cut off when the hall is closed or transported, the power supply by the standby power supply 332 is enabled by the action of the diode, and the power supplied by the backup power supply 332 is supplied to the power supply circuit. It is converted into a necessary voltage of 5V to 24V inside 333, and continuous power supply to the load circuit 200 becomes possible. Since the operations of the sensor 50 and the LED 53 overlap with the above description, the description is omitted here.

  The same applies to FIG. Here, there is further provided a holding circuit for temporarily storing and holding an abnormality detection signal output when an abnormal state is detected such as when the CPU is removed. This holding circuit is driven by a standby power source 332 such as a battery as in the case of the sensor 51, and includes a known circuit such as a self-holding circuit using transistors Q3 and Q4 or a relay. Here, the state (abnormal state) is continued unless a reset is applied. The transistor Q2 has a role as a driver for driving the LED 54, and is shown here as the LED driving and holding circuit 54 together with the holding circuits Q3 and Q4.

By storing the above abnormal state in the nonvolatile memory together with the timer value, for example, at night or during transportation, the CPU is removed and replaced with another CPU while the main power of the slot machine 1 is turned off. Even so, since the history that the CPU has been once removed can be held, the main power supply of the slot machine 1 is turned on, and the main control board 100 checks the holding information of the holding circuit before executing the game. When a history indicating that the game has occurred is obtained, the main control board 100 can perform processing for stopping execution of the game. As a result, the fraudster cannot use the slot machine 1 that has been illegally modified to unfairly play a game with, for example, a high payout, and the damage on the hall side can be suppressed.
The means for holding the history described above is shown as a trace circuit 334 in FIG.

According to the slot machine 1 provided with the abnormality detection device having such a configuration, the sensor 50 driven by the standby power supply 332 always monitors the mounting state of the CPU, so that the main power supply 331 of the slot machine 1 is in a disconnected state. In addition, the administrator or the like can be notified that the CPU has been removed from the control board. In addition, by holding the history, it is possible to perform a process of stopping the execution of the game. As a result, it is possible to always prevent an illegal act such as a person who has entered the hole from replacing the CPU provided in the slot machine 1 and to improve the safety in the slot machine 1 game.
Although only the slot machine has been described according to the above-described embodiment of the present invention, the present invention can be similarly applied to a pachinko machine. In addition, although only the battery is illustrated as the standby power source 332, use of a storage battery, an uninterruptible power supply (UPS), or the like is also conceivable.

It is a perspective view showing the appearance structure of the slot machine according to the embodiment. It is a figure showing the internal structure of the slot machine which concerns on embodiment. It is a block diagram showing the control system of the slot machine which concerns on embodiment. It is a fragmentary sectional view showing the structure of the CPU sensor with which the abnormality detection apparatus which concerns on embodiment is equipped. It is an electric circuit diagram of the abnormality detection device according to the embodiment. It is a flowchart showing operation | movement of the abnormality detection apparatus which concerns on embodiment. It is a connection diagram of a power supply system according to the embodiment. It is a connection diagram of a power supply system according to the embodiment.

Explanation of symbols

51 ... Sensor, 53 ... Notification means (LED)
54 ... LED driving and holding circuit 100 ... main control board, 330 ... power supply board 331 ... main power supply, 332 ... standby power supply

Claims (3)

A gaming machine in which power is supplied by a main power source and operation is controlled by a control board on which a CPU is mounted,
A sensor for detecting a mounting state of the CPU on the control board;
An abnormality detection means for outputting an abnormality detection signal when the sensor detects a state in which the CPU is not mounted on the control board;
Informing means for receiving an abnormality detection signal from the abnormality detecting means and notifying that there is an abnormal state;
When the main power source is shut off, a standby power source that supplies power to the sensor, the abnormality detection unit, and the notification unit;
A gaming machine comprising: The abnormality detection means is
A first current supply circuit for supplying a current from the main power supply or the standby power supply to the sensor; a second current supply circuit for supplying a current to the notification means when an abnormality is detected by the sensor; The game machine according to claim 1, further comprising: a holding circuit that holds the state of the game when the game is detected.   2. The standby power supply is charged when main power is supplied to the control board, and supplies the charged power to the control board when the main power is shut off. The gaming machine described in 1.

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