JP5284591B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine with improved security.

  In a gaming machine such as a pachinko machine or a slot machine where a player can perform a predetermined game, when the external power supply to the gaming machine is turned on, it is diagnosed whether there is an abnormality in the diagnosis part of various electrical parts, There is one in which the diagnosis result is stored in a storage unit and the stored diagnosis result is displayed on a display device (for example, see Patent Document 1).

Also, there is an open / close detection sensor that detects opening / closing of a front door between a housing that houses various electrical components and a front door that can be opened / closed on the front of the housing (for example, patents). Reference 2).
Japanese Patent Laid-Open No. 9-253311 JP 2003-24505 A

  However, in the gaming machines described in Patent Documents 1 and 2, for example, an external power source is connected to the gaming machine such as a period during which it is transported from a production factory that produces gaming machines to a gaming shop or outside the business hours of the gaming shop. Even if there is a fact that the front door is illegally opened when the power supply is not supplied and the control board is illegally operated, there is no way to monitor this and there is a problem in terms of security.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a gaming machine with improved security so that it is possible to monitor fraud at the time of power-off when external power is not supplied to the gaming machine. And

According to the present invention, the above problem is solved as follows.
A door opening / closing detection sensor capable of detecting opening / closing of a front door provided to be openable / closable in a housing of the gaming machine, and a storage means which is an electronic element provided in the housing when external power is not supplied to the gaming machine And a backup power source capable of supplying power necessary for the operation of the clock module, and when the door open / close detection sensor detects the opening of the front door when the external power is not supplied to the gaming machine. In addition, a timer that counts a predetermined time, which is a time required for the postscript storage control unit to store postscript date and time information in the storage means , irrespective of the time during which the front door is opened, is provided in the housing. The power of the backup power source is supplied to the post-storage control unit while the timer is counting the predetermined time. After the predetermined time has elapsed, the backup power source is supplied to the post-storage control unit. And the power supply controller stops the power supply, the housing provided in the body, start triggered by the power of the backup power is supplied by the power supply control unit, within the predetermined time, the door opening and closing and a storage control unit that stores the date and time information when receiving the open signal from the detection sensor in the storage means, the power supply control unit, when the external power to the gaming machine is not supplied, the power the power is supplied from the backup power source to the storage means and the clock module is required to supply, and by the external power is supplied, the power supply from the backup power source to the storage means and the watch module And a power source switching unit capable of switching to supply of the external power.

According to the present invention, the following effects can be obtained.
According to the first aspect of the present invention, when external power is not supplied to the gaming machine, the storage control unit stores the abnormality information in the storage unit by supplying power from the backup power source. It is possible to monitor fraud based on the abnormality information, and to improve security. When the abnormal state detection sensor detects an abnormal state, the power supply control unit supplies the power from the backup power source to the storage control unit for a predetermined time required for the storage control unit to store the abnormal information in the storage unit. Since the power supply from the backup power supply is stopped after a predetermined time has elapsed, the power consumption of the backup power supply can be saved, and illegal activities can be monitored over a long period of time.
Further, when external power is not supplied to the gaming machine, power is supplied from a backup power source to an electronic element that needs to be supplied, and when external power is supplied, backup power is supplied to the electronic element. Since the power supply from the power supply is stopped and the external power is supplied, the power consumption of the backup power supply can be suppressed.

  FIG. 1 is a perspective view of a gaming machine (slot machine) to which an embodiment of the present invention is applied, FIG. 2 is a perspective view of the gaming machine with a front door opened, and FIGS. FIG. 7 is a time chart, and FIG. 8 is a display example displayed on the display device. In the following description, the lower left diagonal in FIGS. 1 and 2 is referred to as “front”, and the upper right diagonal in FIGS.

  A slot machine as a gaming machine 1 is pivotally supported by a front-opening rectangular housing 2 and a pair of upper and lower hinge shafts (not shown) facing the top and bottom on the left side of the housing 2. The front door 3 is provided.

  As shown in FIG. 2, in the housing 2, a main control board 4 that comprehensively controls the game, sub-control that can output abnormality information including control of effects related to the game and opening / closing information of the front door 3, etc. Various electrics of the board 5, the rotary reel unit 6 capable of variably displaying and stopping the identification information composed of a plurality of types of symbols, numbers, etc., the hopper unit 7 capable of storing and paying out medals as game media, and the gaming machine 1 An electrical component related to the game, such as an external power supply device 8 for supplying power from the external power source to the component, is accommodated. The external power supply of the external power supply device 8 to each electrical component is performed via the main control board 4.

  A door opening / closing detection sensor 60 serving as an abnormal state detection sensor capable of detecting opening / closing of the front door 3 is disposed at a location facing the front door 3 in the housing 2. The opening / closing signal detected by the door opening / closing detection sensor 60 is transmitted to the sub-control board 5. The door opening / closing detection sensor 60 that detects opening / closing of the front door 3 is preferably a mechanical limit switch having a function of opening / closing an electric circuit by a mechanical operation.

  The main control board 4 is fixed to the rear plate 2a in the housing 2 in a state accommodated in a transparent board box in order to prevent unauthorized modification, replacement, etc., and a sealing portion provided in the board box is provided. It cannot be removed from the substrate box unless it is destroyed.

  The rotary reel unit 6 includes three left, middle, and right rotary reels 61 whose identification information is printed or pasted on the outer peripheral surface, and a motor drive circuit 62 that controls a motor for rotating each rotary reel 61. Prepare. The motor drive circuit 62 controls the rotation and stop of the motor of each rotary reel 61 based on a control command output from the main control board 4.

  On the back side of the front door 3, a display device 9 having a liquid crystal display screen 91 capable of displaying information related to games output by the sub control board 5, display information, opening / closing information of the front door 3, and other information, The relay board 10 that relays the control signal output from the sub-control board 5, the left and right speakers 11 that generate sound effects, and the authenticity of medals inserted in the medal insertion unit 18 described later are discriminated, and only true medals are hopperd. A medal selector 12 for guiding to the unit 7 is provided.

  On the open side (right side) around the back side of the front door 3, a lower hook 13 is pivotally supported so that it can be engaged and disengaged at an appropriate position of the housing 2. The hook 13 restrains the front door 3 in a closed state by engaging with a proper position of the housing 2.

  The relay board 10 is provided with an abnormality confirmation operation switch 14 that is operated when displaying the opening / closing information of the front door 3 and other information detected by the door opening / closing detection sensor 60 on the display screen 91. The abnormality confirmation operation switch 14 can be operated only when the front door 3 is opened after the hook 13 is disengaged by using a key possessed only by an attendant of the game store. It cannot be operated.

  As shown in FIG. 1, on the front surface of the front door 3, information relating to games displayed on the display screen 91 of the display device 9, presentation information, opening / closing information of the front door 3 and other information can be seen through. An identification information display window through which three pieces of identification information can be seen through the display window 15, the game information display operation switch 16 operated when displaying the history data of the game related to the gaming machine 1 on the display screen 91 17 and a lamp 27 for effecting a game light.

  Below the identification information display window 17, a medal insertion unit 18 into which medals are inserted when a game is started, a MAX bet button 19 for setting the maximum number (3) of bets for medals, and the number of bets for medals. One bet button 20 to be set to one, a start lever 21 that is operated when all the rotating reels 61 are rotated simultaneously, and three stop buttons that are operated when each rotation reel 61 is stopped individually. 22, a settlement button 23 that is operated when the game is settled, a key cylinder 24 that can be operated by a key possessed by an attendant of the game store, and the like.

  When the key cylinder 24 is operated clockwise with the key, the hook 13 is released and the front door 3 can be opened. When the key cylinder 24 is operated counterclockwise by the key, the reset switch 25 provided on the back side of the front door 3 detects the key operation and cancels the error of the electric parts related to the game.

  The MAX bet button 19, the 1 bet button 20, the start lever 21, the stop buttons 22, and the checkout button 23 have built-in sensors for detecting respective operations.

  Next, a gaming method of the gaming machine 1 will be briefly described. After the player inserts a medal into the medal insertion unit 18 and sets the bet number of the game by operating the MAX bet button 19 (or 1 bet button 20), the start lever 21 is operated to rotate each rotary reel 61. Rotate all at once. Then, after a predetermined time has elapsed, the respective stop buttons 22 corresponding to the respective rotary reels 61 are sequentially operated to stop the respective rotary reels 61.

  The combination of left, middle and right identification information displayed on the active line in the identification information display window 17 when each rotating reel 61 is stopped determines the presence / absence of a prize and the size of the prize. Depending on the number of medals, the medal is paid out from the hopper unit 7 to the tray 3a provided at the lower part of the front door 3. And when it becomes a specific game state among winnings, a predetermined sound effect is generated from the speaker 11, game information or effect information related to the specific game state is displayed on the display screen 91 of the display device 9, etc. And enhance the production effect.

Next, a control circuit of the entire gaming machine 1 will be described with reference to FIG.
The main control board 4 has a control unit configured as an integrated one-chip CPU together with a ROM storing a control program and data and a RAM functioning as a work area of the CPU. The control process is executed.

  The ROM on the main control board 4 stores a basic program related to the game of the gaming machine 1 and also stores a data table such as the winning probability of each winning, the number of medals paid out for winning. The CPU executes game control, for example, control of rotation and stop of the rotary reel 61 in the rotary unit 6 in accordance with the ROM program.

  In the input interface of the main control board 4, the external power supply device 8, the MAX bet button 19, the 1 bet button 20, the start lever 21, the stop button 22, the settlement button 23, the reset switch 25, and the medal that has passed the medal selector 12 A medal detection sensor 26 to be detected is connected.

  The output interface of the main control board 4 is connected to the hopper unit 7, the motor drive circuit 62 of the rotary reel unit 6, and the sub control board 5.

  When the control unit of the main control board 4 receives the start signal from the start lever 21, the lottery determines whether or not a prize is won based on the numerical data update data, and sends a control command based on the lottery result to the motor of the rotary reel unit 6. This is transmitted to the drive circuit 62 to individually control the motor of each rotary reel 61 and to transmit the effect command to the sub control board 5.

  The main control board 4, the abnormality confirmation operation switch 14, the game information display operation switch 16 and the door open / close detection sensor 60 are connected to the input interface of the sub control board 5, and the relay board 10 is also connected to the output interface. The display device 9, the speaker 11, and the lamp 27 are connected via the via.

  When an external power supply is connected to the external power supply device 8 and external power is supplied to the gaming machine 1 (for example, during a game shop operation), the sub-control board 5 outputs a control command output by the main control board 4 The display information is transmitted to the liquid crystal control board 92 of the display device 9 to display characters, images, etc. on the display screen 91, the lamp 27 is lit on, and the speaker 11 outputs voice, music, etc. To produce an effect.

As will be described later, the sub control board 5 stores opening / closing information when receiving an opening / closing signal from the door opening / closing detection sensor 60 and date / time information when external power is applied to the gaming machine 1. The opening / closing information includes date / time information when the door opening / closing detection switch 60 detects opening / closing of the front door 3, and power supply source identification information described later for identifying the power source at that time.

  As shown in FIG. 4, the sub-control board 5 includes a ROM 51 storing a control program and various data, a control command output from the main control board 4, and an external power supply device 8 when connected to an external power supply. A CPU 52 serving as a storage control unit that reads the external power-on signal 101 and the opening / closing signal 102 output from the door opening / closing detection sensor 60 through the I / O port 54, and a RAM 53 serving as a storage unit that stores various information by the CPU 52. When the supply of external power (for example, rated voltage DC 3.3V) is stopped (when the external power supply device 8 is not connected to the external power supply or when the external power supply device 8 is OFF) , A rechargeable backup power supply 55 capable of supplying backup power (for example, rated voltage DC3V) necessary for the CPU 52 to operate, and an external Always drivable watch module 56 by the force or back-up power, ROM51, CPU52, RAM53 and the power supply control unit 50 for controlling the power supplied to the watch module 56 is mounted. In the present embodiment, the RAM 53 and the clock module 56 constitute an electronic element that needs to supply power constantly in the present invention.

The storage means in this embodiment uses a non-volatile semiconductor memory such as SRAM (static random access memory) or flash memory that requires power only during operation in order to reduce the power consumption of the backup power supply 55. Instead of this, a DRAM (dynamic random access memory (memory that can be written and read at any time)) that can retain memory even when the power is shut off may be used.

As the backup power source 55, it is desirable to use a secondary battery such as a nickel metal hydride battery or a lithium ion battery that can be used repeatedly after being returned to its original state by charging. Of course, primary batteries such as manganese batteries and alkaline batteries can also be used.

When the external power is not supplied to the gaming machine 1, the CPU 52 opens and closes the opening / closing signal 102 from the door opening / closing detection sensor 60 during, for example, a period during which the gaming machine 1 is transported from the production factory to the gaming shop or a period outside the gaming shop business hours. Is output by the backup power output from the CPU power supply control unit 500 (to be described later) of the power supply control unit 50, the date and time information when the one that has been stopped until then is activated and the open / close signal 102 is received. The power supply information indicating that the power supply source at that time is backup power is stored in the RAM 53. Further, the external power supply device 8 is connected to an external power source, for example, when the gaming machine 1 is installed in a gaming store, and external power is supplied to the gaming machine 1, so that the CPU 52 transmits from the main control board 4. The RAM 53 stores the date and time information when the external power is turned on based on the external power on signal 101. Further, the CPU 52 is driven by the external power output from the CPU power supply control unit 500 during the period when the external power is supplied to the gaming machine 1, for example, during the business hours of the game store, and the door opening / closing detection sensor 60. When the open / close signal 102 is received, the RAM 53 stores the date / time information when the open / close signal at that time is received and the power supply information for identifying that the power supply source at that time is external power.

The date and time information when receiving the open / close signal 102 of the information stored in the RAM 53, the power supply information for identifying the power supply source, and the date and time information when the external power source is turned on are open and closed date and time information 201 and 202, power The supply source identification information 204 and the external power-on date / time information 203 can be displayed on the display screen 91 of the display device 9 as shown in FIG.

  The power supply control unit 50 includes a CPU power supply control unit 500 that controls power supplied to the ROM 51 and the CPU 52, and a RAM power supply control unit 550 that controls power supplied to the RAM 53 and the clock module 56.

  As shown in FIG. 5, the CPU power supply control unit 500 performs signal processing on the open / close signal 102 output from the door open / close detection sensor 60, and outputs backup power based on the open / close signal 102. A backup power-on control signal generation unit 520 that generates the backup power supply control signal 103 and a CPU power supply switching unit 530 that can switch the power source 65 supplied to the ROM 51 and the CPU 52 to external power or backup power.

The RAM power supply control unit 550 includes a RAM power supply switching unit 560 that can switch the power source supplied to the RAM 53 and the clock module 56 to external power or backup power.

As shown in FIG. 6, the signal processing unit 510 of the CPU power supply control unit 500 is formed by a CR circuit including a resistor R1 and a capacitor C1 connected in series to the door opening / closing detection sensor 60. Prevent chattering of the output open / close signal.

The backup power-on control signal generation unit 520 includes a NAND gate 521 having both input terminals 521a and 521b connected to the resistor R1 and the capacitor C1, and connected to the door opening / closing detection sensor 60 through the resistor R1. A CR circuit (delay circuit) that is a timer that determines the time for supplying backup power to the ROM 51 and the CPU 52, and a resistor R2 and a capacitor C2 connected in series to the output terminal 521c, and both input terminals 522a and 522b are resistors. A NAND gate 522 connected between the R2 and the capacitor C2 and the output terminal 521c of the NAND gate 521 via the resistor R2, and one input terminal 523a is connected to the output terminal 521c of the NAND gate 521, and the other Input terminal 523b is the output of NAND gate 522 A NAND gate 523 connected to the terminal 522c, one input terminal 524a connected to the output terminal 521c of the NAND gate 521, and the other input terminal 524b connected to the output terminal 522c of the NAND gate 522; One input terminal 525 a is connected to the output terminal 524 c of the OR gate 524, the other input terminal 525 b is connected to the output terminal 523 c of the NAND gate 523, and the output terminal 525 c is connected to ENB of the CPU power supply switching unit 530. An AND gate 525 is provided.

When a low signal is input to at least one of the input terminals 525a and 525b, the AND gate 525 causes the backup power supply control signal 103 of the low signal from the output terminal 525c and the CPU 52 to store the open / close information in the RAM 53. Output only for the required time.

The CPU power switching unit 530 has a built-in 2-channel power switching IC. External power is input to INA on the input side, backup power is input to INB, and backup power-on control is input to ENB. The backup power supply control signal 103 output from the AND gate 525 of the signal generator 520 is input. When external power is supplied to the gaming machine 1, that is, when external power is input to INA, external power is output from OUTA regardless of whether backup power supply control signal 103 is input to ENB or not. Output. Further, when external power is not supplied to the gaming machine 1, that is, when external power is not input to INA, the CPU 52 opens and closes to the RAM 53 from OUTB only during the period when the backup power supply control signal 103 is input to ENB. The backup power is output for a predetermined time necessary for storing the information. Further, when external power is input to INA of the CPU power supply switching unit 530 and backup power is input to INB, the power having the higher voltage of the power input to INA and INB is DCV65 from OUTA or OUTB. Is output as In the embodiment of the present invention, the external power is 3.3 V and the backup power is 3 V. Therefore, when each power is supplied to INA and INB, the external power is supplied from OUTA. Backup power is not output.

The RAM power source switching unit 560 includes the same two-channel power source switching IC element as the CPU power source switching unit 530. External power is input to the INA on the input side, and the backup power source 55 is connected to INB. The positive (DC3V) side is connected and backup power is input. When each power is input to INA and INB, the voltage of the external power input from INA is higher, so the RAM power switching unit 560 outputs the external power input from INA from OUTA. To do. Further, when external power is not supplied to the gaming machine 1, backup power is output from OUTB, and when external power is input to INA again, the RAM power supply switching unit 560 stops outputting backup power. Thus, external power is output from OUTA, and the power consumption of the backup power supply 55 is suppressed. Further, since the positive side of the backup power supply 55 is connected to the external power, when the external power is supplied to the gaming machine 1, the backup power supply 55 is supplied with the external power from the positive side and is supplied by the external power supply. Charged.

Next, control of the CPU power supply control unit 500 in the power supply control unit 50 when external power is not supplied to the gaming machine 1 will be described with reference to the time chart shown in FIG.
The door opening / closing detection sensor 60 is OFF when the closing of the front door 3 is detected. Therefore, when the front door 3 is closed, the voltage at the point A of the CR circuits R1 and C1 of the CPU power supply control unit 500 is high, so that a high signal is input to both input terminals 521a and 521b of the NAND gate 521. Thus, a low signal is output from the output terminal 521c. At this time, since the voltage at point B of the CR circuits R2 and C2 is low, a low signal is input to both input terminals 522a and 522b of the NAND gate 522, and a high signal is output from the output terminal 522c.

When a high signal is output from the output terminal 522c of the NAND gate 522, the NAND gate 523 has a low signal output from the output terminal 521c of the NAND gate 521 at its input terminal 523a and a NAND gate 522 at the input terminal 523b. Since the high signal output from the output terminal 522c is input, the high signal is output from the output terminal 523c. The OR circuit 524 receives the low signal output from the output terminal 521c of the NAND gate 521 at the input terminal 524a and the high signal output from the output terminal 522c of the NAND gate 522 at the input terminal 524b. Therefore, a high signal is output from the output terminal 524c.

As a result, the AND circuit 525 receives a high signal from both its input terminals 525a and 525b, and outputs a high signal that is not the backup power-on control signal 103 from its output terminal 525c. Is input to ENB. As a result, the CPU power supply switching unit 530 does not output backup power from OUTB regardless of whether or not external power is supplied to the gaming machine 1.

When the door opening / closing detection sensor 60 detects the opening of the front door 3 and outputs an opening signal 102, at that time (point a shown in FIG. 7), a time T1 (for example, 22 msec) based on the time constants of the CR circuits C1 and R1. ) Later, the voltage at point A goes low. For this reason, the NAND gate 521 receives a low signal at both input terminals 521a and 521b and outputs a high signal from the output terminal 521c when the time T1 has elapsed (point b shown in FIG. 7). When a high signal is output from the output terminal 521c, the NAND gate 522 causes the high voltage from the output terminal 522c until the voltage at the point B of the CR circuits C2 and R2 changes to high after time T2 (for example, 33 msec). Continue signal output. Then, the NAND gate 523 outputs a low signal from the output terminal 523c when the high signal is output from the output terminal 521c of the NAND gate 521.

When a low signal is output from the output terminal 523c of the NAND gate 523, the high signal is input to the input terminal 525a and the low signal is input to the input terminal 525b of the AND gate 525, and the backup power-on control signal is output from the output terminal 525c. 103 is output to the ENB of the CPU power source switching unit 530. As a result, the CPU power supply switching unit 530 outputs backup power from OUTB.

Then, after the backup power is output from OUTB of the CPU power source switching unit 530, when time T2 elapses, the voltage at point B of the CR circuits R2 and C2 becomes high at that time (point c shown in FIG. 7). Therefore, the NAND gate 522 receives the high signal from both the input terminals 522a and 522b, and outputs a low signal from the output terminal 522c. As a result, the NAND gate 523 receives the low signal at its input terminal 523b and outputs a high signal from the output terminal 523c.

When the high signal is output from the output terminal 523c of the NAND gate 523, the high signal is input to the input terminals 525a and 525b of the AND gate 525, and the high signal is output from the output terminal 525c. In response to this, the CPU power supply switching unit 530 stops outputting backup power from OUTB.

The CPU 52 starts when the backup power is supplied from the CPU power supply switching unit 530 of the CPU power supply control unit 500, and the gaming machine 1 is in an abnormal state when no external power is supplied to the gaming machine 1. Assuming that it has occurred, the date and time when the open signal 102 output from the door open / close detection sensor 60 is received is read from the clock module 56 and stored in the RAM 53, and the power source at that time is backup power. The power supply source information to that effect is also stored in the RAM 53 and stopped after the time T2.

Note that when external power is not supplied to the gaming machine 1, the backup power supplied to the CPU 52 causes the CPU 52 to store the opening / closing information of the front door 3 in the RAM 51 regardless of the time during which the front door 3 is open. Therefore, even when the front door 3 is opened for a long time, the power of the backup power supply 55 is not wasted.

  When the front door 3 is closed from the open state, at that time (point d shown in FIG. 7), when the door open / close detection sensor 60 switches from ON to OFF and outputs a close signal 102, the time constants of the CR circuits C1 and R1 After a time T1 based on, the voltage at point A becomes high. For this reason, the NAND gate 521 receives a high signal from both the input terminals 521a and 521b and outputs a low signal from the output terminal 521c when the time T1 elapses (point e shown in FIG. 7). When the low signal is output from the output terminal 521c, the NAND gate 522 outputs the low signal from the output terminal 522c until the voltage at the point B of the CR circuits C2 and R2 changes to low after the time T2. Continue. The OR gate 524 outputs a low signal from the output terminal 524c when the low signal is output from the output terminal 521c of the NAND gate 521.

When a low signal is output from the output terminal 524c of the OR gate 524, the AND gate 525 receives a low signal from the input terminal 525a and a high signal from the input terminal 525b, respectively, and a backup power-on control signal from the output terminal 525c. 103 is output to the ENB of the CPU power source switching unit 530. As a result, the CPU power supply switching unit 530 outputs backup power from OUTB.

Then, after the backup power is output from OUTB of the CPU power source switching unit 530, when time T2 elapses, the voltage at the point B of the CR circuits R2 and C2 becomes low at that time (point f shown in FIG. 7). Therefore, the NAND gate 522 receives a low signal at both its input terminals 522a and 522b, and outputs a high signal from the output terminal 522c. Thus, the OR gate 524 receives the high signal at the input terminal 524b and outputs the high signal from the output terminal 524c.

When the high signal is output from the output terminal 524c of the OR gate 524, the AND gate 525 receives the high signal from the input terminals 525a and 525b, and outputs the high signal from the output terminal 525c. In response to this, the CPU power supply switching unit 530 stops outputting backup power from OUTB.

The CPU 52 is activated again when the backup power is supplied from the CPU power supply switching unit 530 of the CPU power supply control unit 500, and the gaming machine 1 is in an abnormal state when external power is not supplied to the gaming machine 1. The date and time when the closing signal 102 output from the door open / close detection sensor 60 is received is read from the clock module 56 and stored in the RAM 53, and the power source at that time is backup power. The power supply source information indicating that there is a certain amount is also stored in the RAM 53 and stopped after the elapse of time T2.

  Next, a method for confirming the opening / closing information stored in the RAM 53 will be described. When external power is supplied to the gaming machine 1, information stored in the RAM 53 by the CPU 52 of the sub control board 5, for example, the front door 3 is opened by opening the front door 3 and operating the fraud confirmation operation switch 14. Opening date / time information 201 when the door is opened, closing date / time information 202 when the front door 3 is closed, external power-on date / time information 203 when external power is applied to the gaming machine 1, and opening / closing of the front door 3 The power supply source identification information 204 for identifying whether the power supplied to the CPU 52 is external power or backup power is displayed on the display screen 91 of the display device 9 in time series as shown in FIG. 8, for example. The opening / closing information of the front door 3 can be confirmed.

  For example, as shown in FIG. 8, it is determined that the gaming machine 1 in which the opening / closing information of the front door 3 is displayed on the display screen 91 of the display device 9 before the external power-on date is likely to be fraudulent, Carefully checked or replaced with a new gaming machine.

As described above, the gaming machine according to the present embodiment has the following operational effects.
(A) When the front door 3 is opened and closed when the external power is not supplied to the gaming machine 1 and when the front door 3 is opened and closed, the CPU 52 indicates the date and time information when the front door 3 is opened and closed to the RAM 53 by the backup power supply. Since it is stored in the RAM, it is possible to monitor fraud based on the opening / closing information stored in the RAM 53, and to improve security.

(B) Since the time for supplying the backup power to the CPU 52 is only a short time T2 necessary for the CPU 52 to store the open / close information in the RAM 53, the power consumption of the backup power supply 55 can be minimized. The illegal opening and closing of the front door 3 at the time of power-off of the gaming machine 1 can be monitored for a long period of time, the capacity of the backup power supply 55 can be reduced, and an inexpensive and small backup power supply 55 can be used.

(C) Even when the front door 3 is open for a long time when the external power supply is shut down, the backup power supply time to the CPU 52 is only the time T2, so the power consumption of the backup power supply 55 is minimized. Can do.

(D) The RAM power supply control unit 550 of the power supply control unit 50 supplies backup power to the RAM 53 and the clock module 56 when external power is not supplied to the gaming machine 1, and also supplies external power to the gaming machine 1. Is switched to supply the external power to the RAM 53 and the clock module 56, so that the power consumption of the backup power supply 55 can be suppressed.

Although the embodiment of the present invention has been described above, the following various modifications and changes can be made to the present embodiment without departing from the gist of the present invention.
(I) The gaming machine 1 is a pachinko machine in which the gaming medium is a pachinko ball, a slot machine, and other gaming machines, instead of a slot machine in which the gaming medium is a medal (including coins).
(Ii) The door opening / closing detection sensor 60 is a photoelectric non-contact type sensor instead of a mechanical limit switch.
(Iii) As a display device that displays open / close information, instead of the display device 9 that displays open / close information on the front surface of the front door 3 as in the above-described embodiment, A separate display device dedicated to display of switching information is provided.
(Iv) The abnormal state detection sensor detects another abnormal state instead of or in addition to the door open / close detection sensor 60 that detects opening / closing of the front door 3. Other abnormal states include an abnormal inclination and vibration of the gaming machine 1 caused by detachment / removal of the board box containing the main control board 4, movement of the gaming machine 1, and insertion of unauthorized tools into the housing 2. Detection of abnormal pressure load.

1 is a perspective view of a gaming machine to which an embodiment of the present invention is applied. It is a perspective view of the gaming machine with the front door opened. It is a block diagram which shows an example of a control circuit. It is a block diagram of the principal part of a control circuit. It is a block diagram of a power supply control part. It is a circuit diagram which shows an example of a power supply control part. It is a time chart which shows the operation timing of a control circuit. It is a display example displayed on a display screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Game machine 2 Case 2a Rear plate 3 Front door 3a Receptacle 4 Main control board 5 Sub control board 6 Rotating reel unit 7 Hopper unit 8 External power supply device 9 Display device 10 Relay substrate 11 Speaker 12 Medal selector 13 Hook 14 Abnormality confirmation Operation switch 15 information display window 16 game information display operation switch 17 identification information display window 18 medal insertion part 19 MAX bet button 20 1 bet button 21 start lever 22 stop button 23 settlement button 24 key cylinder 25 reset switch 26 medal detection sensor 27 Lamp 50 Power supply controller 51 ROM
52 CPU (Storage Control Unit)
53 RAM (storage means)
54 I / O port 55 Backup power supply 56 Clock module 60 Door open / closed detection sensor (abnormal state detection sensor)
61 Rotating reel 62 Motor drive circuit 65 DCV
91 Display Screen 92 Liquid Crystal Control Board 101 External Power On Signal 102 Open / Close Signal 103 Backup Power Supply Control Signal 201 Open Date / Time Information 202 Closed Date / Time Information 203 External Power On Date / Time Information 204 Power Supply Source Identification Information 500 CPU Power Supply Control Unit 510 Signal Processing Unit 520 backup power-on control signal generation unit 521, 522, 523 NAND gate 524 OR gate 525 AND gate 530 CPU power supply switching unit 550 RAM power supply control unit 560 RAM power supply switching unit R1, R2 resistors C1, C2 capacitors

Claims (1)

A door opening / closing detection sensor capable of detecting opening / closing of a front door provided to be openable / closable in a housing of the gaming machine;
When external power is not supplied to the gaming machine , a storage power source that is an electronic element provided in the housing and a backup power source that can supply power necessary for the operation of the clock module ;
When the external power is not supplied to the gaming machine, the storage control unit described later is triggered by the door opening / closing detection sensor detecting the opening of the front door, regardless of the opening time of the front door. A timer for measuring a predetermined time, which is a time necessary for storing postscript date and time information in the storage means ;
The backup power source is provided in the housing and supplies power of the backup power source to a later-described storage control unit while the timer is counting the predetermined time, and after the elapse of the predetermined time, the backup power source to the later-described storage control unit A power supply control unit for stopping the power supply of
When the power supply control unit is provided in the housing and is activated when the power of the backup power source is supplied by the power supply control unit, and when an open signal is received from the door open / close detection sensor within the predetermined time and a storage control unit for storing time information in the storage means,
The power supply control unit supplies power from the backup power source to the storage means and the timepiece module that need to supply power when the external power is not supplied to the gaming machine, and the external power is A gaming machine comprising: a power supply switching unit capable of switching to supply of external power by stopping supply of power from the backup power supply to the storage means and the timepiece module when supplied.

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