JP4928655B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine such as a slot machine, and in particular, in a gaming machine including a plurality of boards and a wire harness that electrically connects them, fraudulent acts that are performed by adding unauthorized electronic components are suppressed. It relates to a possible gaming machine.

  Pachinko machines such as pachinko machines and slot machines that are installed and used in game halls such as pachinko parlors are given a certain value to game media such as pachinko balls and medals, and the game media acquired by playing games It can be exchanged for various prizes. The gaming machine is provided with various drive devices such as a lamp device and a sound generation device that are operated based on the supply of the game medium, and a control circuit device corresponding to control these drive devices inside the housing. Therefore, when the player plays a game, the game is filled with interest by appropriately operating them. Further, in recent years, a variable symbol display device such as a reel display device or a liquid crystal image display device that can display predetermined identification information (symbol) in a variable manner is built in and stopped after changing the identification information when a predetermined condition is satisfied. The mainstream is to operate the variable symbol display device so that it can be displayed. These devices are controlled by a control circuit device.

  A control circuit device disposed in a recent gaming machine is generally one in which a CPU (central processing unit) provided on a board performs electronic control according to a control program. The control program is stored as data in an IC chip mounted on a substrate such as a mask ROM (read only memory), and the CPU sequentially reads and executes the control program data from the IC chip according to the gaming state. Control is done by doing.

  Fraudulent acts against gaming machines have become a major problem. There are various types of cheating. In addition to replacing the ROM and the main board itself, a wire harness that connects the board and multiple boards (a wire harness) Hereafter, there is a method of attaching an illegal electronic component to a “harness”. Actually, it seems that a connector or harness on which unauthorized electronic parts are mounted in advance is replaced with a regular one. An unauthorized electronic component performs an unauthorized process that makes a game advantageous to a person who performs an unauthorized act.

  If cheating is divided roughly, there is a thing with exchange of a harness, ie, insertion and removal of a connector, and a thing which is not so. Examples of the former include replacement of the main board, replacement of connectors and harnesses, and examples of the latter include replacement of ROM. In the following description, fraudulent acts involving the replacement of the former harness (connector insertion / extraction) will be described.

  Even if the harness is replaced with an unauthorized one, the game can be performed thereafter, and an unauthorized electronic component cannot be found from outside the gaming machine. In a conventional gaming machine, even if a medium for connecting a signal line such as a harness is temporarily removed during a game or in a game standby, an electronic component or the like on a board to which the signal line is connected does not operate. However, other substrates and electronic components were not affected. For these reasons, it has been difficult to prevent the above fraud.

  There exists a thing of the following patent documents 1 as a technique for preventing the said fraud.

Japanese Patent Application Laid-Open No. 2005-58637 "Improper Wiring Detection Device and Method for Game Machine and Program"

  The technology of Patent Document 1 compares signals at both ends of a harness with a detection circuit, and determines that an unauthorized electronic component is attached when the signals do not match. However, the method of Patent Document 1 cannot detect an illegal act unless the illegal electronic component actually operates and modifies the signal. It was impossible to detect and notify immediately that an unauthorized electronic component was attached. In order not to allow the execution of fraudulent acts, it is desirable to quickly detect the attachment of the unauthorized electronic component.

  The present invention makes it possible to detect and notify that an unauthorized electronic component has been attached when the power is turned on immediately thereafter. That is, a method for detecting human beings such as sound and light when an unauthorized operation (for example, replacement of harness or unauthorized connector insertion / extraction) is applied to the harness connecting the plurality of boards. It is an object of the present invention to provide a gaming machine in which an unauthorized part cannot be easily attached by notifying an error state.

The present invention includes a main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board and performs an effect process, a power supply unit that supplies power to the main board and the sub board, and the main board In a gaming machine comprising a first wire harness for supplying power to a board, and a second wire harness and a third wire harness for supplying power to the sub-board,
A backup power supply provided in the power supply unit for supplying power when the power is cut off,
A first semiconductor element and a second semiconductor element which are provided on the sub-board and receive power from the backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The first semiconductor element is supplied with electric power from the backup power source through the second wire harness,
The second semiconductor element is supplied with power from the backup power source through the first wire harness or the third wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the backup power supply has deteriorated,
When the determination result relating to the first semiconductor element indicates a voltage drop and the determination result relating to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed.

The present invention includes a main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board and performs an effect process, a power supply unit that supplies power to the main board and the sub board, and the main board In a gaming machine comprising a first wire harness for supplying power to a board, and a second wire harness and a third wire harness for supplying power to the sub-board,
A first backup power source and a second backup power source provided in the power source unit for supplying power when the power is cut off;
A first semiconductor element provided on the sub-board and receiving power from the first backup power source; and a second semiconductor element receiving power from the second backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the second backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The capacity of the second backup power supply is smaller than the capacity of the first backup power supply,
The first semiconductor element is supplied with power from the first backup power source through the second wire harness,
The second semiconductor element is supplied with power from the second backup power source through the first wire harness or the third wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the second backup power supply has deteriorated,
When the determination result relating to the first semiconductor element indicates a voltage drop and the determination result relating to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed.

The present invention includes a main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board and performs an effect process, a power supply unit that supplies power to the main board and the sub board, and the main board In a gaming machine comprising a first wire harness for supplying power to a board and a second wire harness for supplying power to the sub-board,
A first backup power supply provided in the power supply unit for supplying power when the power is cut off;
A second backup power source provided on the sub-board for supplying power when the power is cut off;
A first semiconductor element provided on the sub-board and receiving power from the first backup power source; and a second semiconductor element receiving power from the second backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the second backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The capacity of the second backup power supply is smaller than the capacity of the first backup power supply,
The first semiconductor element is supplied with power from the first backup power source through the second wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the second backup power supply has deteriorated,
When the determination result relating to the first semiconductor element indicates a voltage drop and the determination result relating to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed.

The stored content is, for example, a characteristic value of volatile storage element data. The feature value is (1) a checksum value for all or part of data in the volatile memory element, (2) a value obtained by a logical operation including logical product, logical sum or exclusive logical sum, (3) For example, a hash value obtained by a hash function.

The stored contents are, for example, all or a part of data of the volatile memory element saved when the power is turned off, and all or a part of the data of the volatile memory element read when the power is turned on.

The stored contents are, for example, predetermined data written at a predetermined address when the power is turned off, and data read from the predetermined address when the power is turned on.

For example, the determination unit obtains a characteristic value of the data of the volatile memory element when the power is turned off, holds this as a characteristic value when the power is turned off, and obtains a characteristic value of the data of the volatile memory element when the power is turned on , Determine the presence or absence of voltage drop by comparing this with the characteristic value at the time of power off,
Determine the presence or absence of voltage drop based on the flag or the signal of the voltage drop detection semiconductor element at power-on,
The presence or absence of removal of the second wire harness is determined based on the determination result of the voltage drop related to the volatile memory element and the determination result of the voltage drop related to the voltage drop detection semiconductor element.

  For example, in order to obtain the feature value, the determination unit obtains a checksum for all data or a part of data of the volatile memory element, and performs a logical operation including logical product, logical sum, or exclusive logical sum. And / or obtaining a hash value using a hash function.

The determination unit, for example, saves all or part of the data of the volatile memory element when the power is turned off, reads all or part of the data of the volatile memory element when the power is turned on, and saves the data To determine whether there is a voltage drop,
Determine the presence or absence of voltage drop based on the flag or the signal of the voltage drop detection semiconductor element at power-on,
The presence or absence of removal of the second wire harness is determined based on the determination result of the voltage drop related to the volatile memory element and the determination result of the voltage drop related to the voltage drop detection semiconductor element.

The determination unit, for example, writes predetermined data to a predetermined address of the volatile memory element, reads data of the predetermined address of the volatile memory element when power is turned on, Determine the presence or absence of voltage drop by comparing with the predetermined data,
Determine the presence or absence of voltage drop based on the flag or the signal of the voltage drop detection semiconductor element at power-on,
The presence or absence of removal of the second wire harness is determined based on the determination result of the voltage drop related to the volatile memory element and the determination result of the voltage drop related to the voltage drop detection semiconductor element.

  According to the present invention, the backup power supply is provided in the power supply unit, and the backup power supply is supplied to the voltage drop detection semiconductor element (or volatile storage element) via the second wire harness that is removed in the case of fraud. Then, it is detected that the second wire harness has been removed, and an error notification is performed in such a manner that a person such as sound or light can detect it if necessary. As a result, fraud can be suppressed.

  A gaming machine (slot machine) according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of the slot machine with the front door closed, and FIG. 2 is a front view of the slot machine with the front door opened 180 degrees.

  1 and 2, reference numeral 100 denotes a slot machine. As shown in FIG. 1, the slot machine 100 can be opened and closed by a hinge or the like on the slot machine main body 120 and one side of the front surface of the slot machine main body 120. And a front door 130 attached thereto. As shown in FIG. 1, a game display unit 131 is provided substantially in the center of the front door 130, and a medal insertion slot 132 for a player to insert medals is provided at the lower right corner of the game display unit 131. Provided further below the medal insertion slot 132 is a reject button 133 for forcibly discharging a clogged medal inserted from the medal insertion slot 132 to the outside of the slot machine 100.

  A start switch 134 for starting a game is provided at the lower left of the game display unit 131, and three stop buttons 140 are provided corresponding to the three reels. A medal payout port 135 is provided at the center of the lower end of the front door.

  As shown in FIG. 2, the slot machine main body 120 is fixed to the inner bottom surface, stores a plurality of medals therein, and stores the stored medals at a payout port 135 provided on the front surface of the front door 130. A hopper device 121 for paying out the sheets one by one is installed. An upper portion of the hopper device 121 is provided with a hopper tank 122 that opens upward and stores a plurality of medals therein. Inside the slot machine main body 120, a reel unit 203 including three rotating reels is installed at a position where the game display unit 131 comes when the front door 130 is closed. The game display unit 131 is provided with an opening through which a player can see the symbols of each rotating reel of the reel unit 203. A power supply unit 205 is provided between the upper hopper unit 121 and the reel unit 203.

  As shown in FIG. 2, the medal (coin) selector 1 is attached to the back side of the front door 130 on the back side of the medal slot 132 provided on the front surface of the front door 130. This medal selector 1 rolls the medal toward the hopper device 121 while detecting the passage of the medal inserted from the medal insertion slot 132, and has a different diameter medal or iron or iron whose outer diameter is different from the predetermined dimension. This is an apparatus for selecting and removing illegal medals made of an alloy and selecting and eliminating a predetermined number or more of medals that can be inserted per game.

  Further, as shown in FIG. 2, a lead-out path 136 that covers the lower side and communicates with the payout port 135 of the front door 130 is provided below the medal selector 1. The medals distributed by the medal selector 1 are returned to the player from the payout port 135 via the derivation path 136.

FIG. 3 shows details of the panel of the power supply unit 205.
In FIG. 3, a power switch 2051 is a power on / off switch, a power supply pilot lamp 2052 is a lamp (LED) that is lit when the power is on, and a stop presence / absence switch 2053 is a stop that limits the number of medals to be paid out. Is a switch for setting “Yes” or “No”. The stop / presence switch 2053 is normally set to “none” and is not frequently used. A setting key switch 2054 is a switch for changing a setting, a setting change / reset switch 2055 is a switch for changing a setting value or resetting the apparatus, and an AC100V pilot lamp 2056 is a power source of the casing. The lamp indicates that AC 100 V is supplied, and the AC power output and power cable 2057 are for supplying power.

FIG. 4 is a functional block diagram of the slot machine according to the embodiment of the invention.
In this figure, the display about the power supply system is omitted. The slot machine 100 includes a main substrate 1 and a sub substrate 2 that operates in response to a command from the main substrate 1 as main processing devices. At least the main substrate 1 is accommodated inside the case so that it cannot be contacted from the outside, and a sealing process is performed so that traces remain when the substrates are removed.

  The main board 1 is for performing an internal lottery in response to a player's operation, and processing such as reel rotation / stop and medal payout. The main board 1 includes a CPU that performs a control operation according to a preset program, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like.

  The sub-board 2 is for receiving a command signal from the main board 1 and notifying the result of the internal lottery and performing various effects. The sub-board 2 includes a CPU that performs a control operation according to a preset program corresponding to the command signal, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like. The flow of commands is only one from the main board 1 to the sub board 2, and conversely, no command or the like is issued from the sub board 2 to the main board 1.

  The main board 1 counts the start switch 134, the stop button 140, the reel unit (including the reel driving device) 70, the reel position detection circuit 71, the hopper driving unit 80, the hopper 81, and the number of medals paid out from the hopper 81. For this purpose, a medal detection unit 82 (which constitutes the hopper device 121 described above) is connected. A peripheral substrate (local substrate) such as a control substrate 200 of the liquid crystal display device, a speaker 201, and an LED substrate 202 is connected to the sub substrate 2.

  As described above, the main board 1 and the sub board 2 are configured around the CPU, and include a ROM, a RAM, an I / O, and the like. A CPU (processing unit) receives a player's operation and reads a program stored in a ROM (storage unit) to perform a predetermined operation. Specifically, the rotation and stop of the three rotating reels built in the reel unit 70 are controlled based on the operation of the start switch 134 and the stop button 140, and the display of lamps, speakers, and the like are controlled. Temporary data necessary for the CPU to operate is RAM (generally RAM is a volatile memory, and data is lost in principle when the power is turned off. A backup power supply may be prepared, and in this case, data is not lost even if the power is turned off. The CPU performs a predetermined operation in accordance with a program recorded in the ROM, records temporary data necessary for processing in the RAM, and reads out and refers to the recorded data as necessary.

  A player who wants to enjoy a game with a slot machine can first borrow a medal as a game medium from a medal lending machine (not shown) or the like, and insert a medal directly into the medal slot 132 of the medal slot device. The start switch 134 is a lever positioned obliquely below the rotating reel, and starts driving the reel unit 70 on condition that a game medal is inserted. The drive of the reel unit 70 is stopped by a stop button 140. The reel unit 70 is composed of three rotating reels. Each rotating reel includes a rotating drum made of a synthetic resin and a tape-like reel tape attached around the rotating drum. A plurality of (for example, 21) symbols are displayed on the outer peripheral surface of the reel tape.

  FIG. 5 shows a power supply system (only a portion related to the backup power supply) of the power supply unit 205 and the main board 1 and sub board 2 according to the first embodiment of the present invention. This figure shows only the parts necessary for explaining the operation of the first embodiment of the present invention, and the ROM and other displays on the sub-board 2 and the display of address signals and data signals are omitted.

  In FIG. 5, 2b is a backup power supply provided in the power supply unit 205 for supplying power to the voltage drop detection semiconductor element (RTC) 2c of the sub-board 2 when the power is turned off. The backup power source 2b is a secondary battery such as a lithium battery, but the present invention is not limited to the secondary battery. A battery such as a primary battery or a capacitor may be used. 2c is a real-time clock IC (semiconductor element; “voltage drop detection semiconductor element” having a function of detecting a drop in power supply voltage as will be described later; hereinafter referred to as RTC) that receives power from a backup power supply. . The RTC 2c is a commercially available IC, and has, for example, a calendar function and a counter function for year, month, date, day of the week, hour, minute, and second, and functions such as a time alarm, an interval timer, and a time change interrupt. A determination unit 2d determines whether or not the wire harness WH2 connecting the main board 1 and the sub board 2 is removed. The determination unit 2d can read data and flags from the RTC 2c and write data and flags to the RTC 2c. The determination unit 2d is realized by a CPU (not shown) that operates according to a predetermined program, for example. The CPU of the sub-board 2 can also serve as the CPU of the determination unit 2d. In addition to determining whether or not the wire harness WH2 connecting the main board 1 and the sub board 2 is removed, the determination unit 2d may determine the deterioration of the backup power source 2b. 2e is a diode for receiving the power source (DC voltage) VDD of the power source unit 205 and supplying it to the backup power source 2b for charging, and for preventing the current of the backup power source 2b from flowing back to the power source VDD at the time of power-off backup. is there.

  In FIG. 5, the backup power supply 2b for the RTC 2c of the sub board 2 is mounted on the power supply unit 205, and the output reaches the sub board 2 via the wire harness WH1, the wiring P1 inside the main board 1, and the wire harness WH2. , RTC2c is configured to supply power. In FIG. 5, P205 indicates wiring from the backup power supply 2b to the output terminal of the power supply unit 205 (connected to the wire harness WH1), and P1 is an input terminal of the main board 1 (connected to the wire harness WH1). P2 indicates the wiring from the input terminal of the sub-board 2 to the power input terminal of the RTC 2c (which receives at least the power from the back amplifier power supply 2b). Show. S1 represents an output signal line of the main board 1, and S2 represents an input signal line of the sub board.

  In the apparatus / method according to Embodiment 1 of the present invention, the backup power source 2b is provided in the power source unit 205, and the backup power source is supplied to the voltage drop detection semiconductor element (RTC) 2c on the sub-board 2. And the wiring harness WH1 that connects the main board 1, the wiring harness WH2 that connects the main board 1 and the sub board 2, and the wiring P1 provided on the main board 1. When one of the wire harnesses WH1, WH2 or the main board 1 is removed (at least when the wire harness WH2 is removed, this includes a signal line, and when the main board 1 or the sub board 2 is replaced) It is necessary to remove the backup power supply to the RTC 2c, and the contents of the output (data and flag) of the RTC 2c are checked when the power is turned on. It is characterized in that it is determined whether or not (at least the wire harness WH2) has been removed.

  The RTC 2c has a flag register therein, and at least one bit thereof is a flag (VLF (Voltage Low Flag) bit) set when the power supply voltage is lowered. The fact that the VLF bit is set (= 1) means that time-measured data or the like may be lost due to a decrease in power supply voltage or the like, and it is recommended to initialize the registers and the like.

  If none of the wire harnesses WH1, WH2 and the main board 1 are removed, the power backup is performed normally, and the VLF bit of the internal flag should not be set (= 0) when the power is turned on. If the VLF bit is set, it can be determined that either the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) may have been removed (the same applies when the backup power supply 2b deteriorates). Although a phenomenon occurs, in this case as well, it is necessary to report an error as in the case of fraud detection, so that the following processing including the case of backup power supply degradation does not cause a problem).

  FIG. 7 shows a processing flowchart when the power switch is turned on. FIG. 8A shows a timing chart when the power switch is turned off, and FIG. 8B shows a timing chart when the power switch is turned on. The operation of the first embodiment of the invention will be described with reference to these drawings.

  In FIG. 8A, when the power switch is on, the power supply voltage is a specified value (period P1). In the period P1, the power supply VDD is supplied to the RTC 2c via the diode 2e and the backup power supply 2b is charged. When the power switch is turned off from on (time T1), the power supply voltage supplied to the sub-board 2 or the like does not decrease immediately, and after a while after the power switch is turned off, the power supply voltage becomes zero ( Time T2). During this period (period P2), the CPU or the like of the sub-board 2 can perform a predetermined process. Immediately after the power switch is turned from on to off (time T1), the power-off signal indicating that effect becomes effective, so that the CPU or the like can execute processing at the time of power-off upon the power-off signal. .

  When the voltage of the power supply VDD decreases, power is supplied from the backup power supply 2b to the RTC 2c as indicated by thick lines P205, P1, and P2 in FIG. Therefore, even if the power switch is turned off, the flag (VLF bit) of the RTC 2c is not set.

  Next, when the power switch is turned on, the power supply voltage rises and quickly reaches the specified value. At that time, a reset signal is usually generated, and the CPU or the like starts an initial operation in the subsequent period. As one of the initial operations, the process of FIG. 7 is performed.

  That is, the RTC 2c flag register is checked (S10), and it is checked whether the VLF bit is set (S11). When the VLF bit is not set (NO), it means that the battery is backed up even while the power of the RTC 2c is cut off. Therefore, none of the wire harnesses WH1, WH2 and the main board 1 is removed, and the backup power supply 2b Can be determined to be normal. Since this is a normal state, normal activation processing is performed (S13).

  On the other hand, when one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed during the power-off period P3 (when the main board 1 or its ROM is replaced, and the ROM is removed) In order to be effective, it is necessary to cut off the power supply once), and as shown in FIG. 6, when any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed, the RTC 2c is reached. The power supply is cut off. This is because at least a part of the power supply line from the backup power source 2b to the RTC 2c is arranged to pass through the wire harness WH2. In the state of FIG. 6, the VLF bit of the RTC 2c is set (= 1), and the bit is not reset (= 0) even when power is supplied again. As a result, the determination result in S11 is YES, error processing is performed, and notification is made that one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed (S12). After this, the normal activation process is not performed, so that the game cannot be performed. Note that error processing may be performed when a VLF bit set is detected even during a period other than the power-off period.

  According to the first embodiment of the invention, the backup power is supplied to the semiconductor element (RTC) via either the wire harnesses WH1, WH2 or the main substrate 1 (at least the wire harness WH2), and the wire harnesses WH1, WH2 are supplied. Alternatively, when any of the main boards 1 (at least the wire harness WH2) is removed, the supply of the backup power to the semiconductor element is cut off, thereby causing a backup failure. Since the flag of the semiconductor element is checked by the determination unit when the power is turned on, if any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed, a backup failure is detected. . It is determined that any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) may have been removed, and the game is stopped by shifting to an error state or the like. In addition to the meaning of backup failure due to deterioration of the backup power source, the error state has a meaning that either the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed. With the configuration as described above, it is possible to detect an unauthorized exchange of the wire harness WH2 and notify an error, and it is possible to suppress an illegal act. It should be noted that the replacement of the main board 1 can also be detected and notified.

  In the above description, the power supply voltage drop detection semiconductor element received by the backup power supply has been described by taking the real time clock IC (RTC) as an example. However, this is only an example, and other semiconductor elements may be used. it can. For example, it is possible to use an IC that detects this when the power is lowered and outputs a signal (for example, a reset signal), and holds the output until the power is turned on, for example, by a register or a nonvolatile memory (EEPROM, etc.).

Embodiment 2 of the Invention
A second embodiment of the invention will be described with reference to the drawings.
FIG. 9 is a block diagram showing a backup power supply system according to Embodiment 2 of the invention. In FIG. 9, reference numeral 2b denotes a backup power source for supplying power when the power is turned off. 2c-1 is an RTC that receives power from the backup power supply 2b. Reference numeral 2c-2 denotes a RAM (volatile storage element) that receives power from the backup power supply 2b. The RTC 2c-1 and the RAM 2c-2 are supplied with power from the same backup power source 2b when the power is cut off, but the wiring route from the backup power source 2b is different (this point will be further described later). 2d is a determination unit that determines whether any of the wire harnesses WH1 and WH2 or the main board 1 (at least the wire harness WH2) is removed. The determination unit 2d can read data (flag) from the RTC 2c-1 and RAM 2c-2 and write data to the RTC 2c-1 and RAM 2c-2 (set / reset flag). The determination unit 2d is realized by a CPU (not shown) that operates according to a predetermined program, for example. The CPU of the sub-board 2 can also serve as the CPU of the determination unit 2d. The determination unit 2d may determine the deterioration of the backup power source 2b in addition to determining whether or not the wire harnesses WH1 and WH2 or the main board 1 (at least the wire harness WH2) is removed. Reference numeral 2e denotes a diode that receives the power supply (DC voltage) VDD of the substrate and supplies it to the backup power supply 2b for charging, and also prevents the current of the backup power supply 2b from flowing back to the power supply VDD at the time of power-off backup.

  In FIG. 9, the power from the backup power supply 2b to the RTC 2c-1 passes through the wiring P205 of the power supply unit 205, the wire harness WH1, the wiring P1 of the main board 1, the wire harness WH2 and the wiring P2 of the sub board 2 ( Same as Embodiment 1 of the invention). On the other hand, the power from the backup power supply 2b of the RAM 2c-2 is supplied from the wiring P205 of the power supply unit 205, the wire harness WH1, the wiring P1 'branched from the wiring P1 of the main board 1, the wiring harness WH3, and the wiring of the sub board 2. Via P21. That is, when the wire harness WH2 is removed, a backup failure occurs for the RTC 2c-1, but not for the RAM 2c-2. It is assumed that the wire harness WH3 is dedicated for backup power supply and does not need to be removed in principle.

  The backup power supply system may be as shown in FIG. That is, branching is performed in the power supply unit 205, and the wiring P205 'is directly connected to the wiring P21 of the sub-board 2 by the wire harness WH31. According to the configurations of FIGS. 9 and 10, as described later, it is possible to detect that any of the wire harnesses WH1, WH2 or the main board 1 has been removed, as distinguished from a backup failure due to deterioration of the backup power supply 2b. it can.

  In the apparatus / method according to the second embodiment of the present invention, the backup power supply to the volatile memory element (RAM) 2c-2 on the sub-board 2 is not routed via the wire harness WH2 (in FIG. Although it is performed via the harness WH3 (via the wire harness WH31 in FIG. 10), the backup power is supplied to the RTC 2c-1 via the wire harness WH2. When any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed, the backup power is not supplied to the RTC 2c-1, and the power supply voltage with respect to the RTC 2c-1 is turned on when the power is turned on. By confirming whether or not the content of the RAM 2c-2 is the same as when the power supply was cut off (if there is a mismatch, it means that the power supply voltage has been reduced with respect to the RAM 2c-2), the wire harness Whether any of WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed is determined by distinguishing from deterioration of the backup power supply 2b.

  If any of the wire harnesses WH1, WH2 and the main board 1 is not removed, the backup is performed normally, and the RTC 2c-1 decreases the power supply voltage when the power is turned off and when the power is turned on (that is, during the power cut). Should not be detected. If the RTC 2c-1 detects a drop in the power supply voltage, it can be determined that any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) may have been removed.

  Similarly, when the backup power supply 2b deteriorates, the RTC 2c-1 detects a drop in the power supply voltage. In this case, the contents of the RAM 2c-2 also change. The RTC 2c-1 and the RAM 2c-2 are each checked for the presence or absence of a decrease in power supply voltage, and by comprehensively judging these results, either the wire harness WH1, WH2 or the main board 1 (at least the wire harness WH2) Can be distinguished from the case where the backup power supply 2b has deteriorated.

  In order to determine whether or not the contents of the RAM 2c-2 have changed during power-off, that is, between power-off and power-on, a checksum (check sum) is used in the second embodiment of the invention. The checksum is a total obtained for the data of all addresses of the RAM or the data of some addresses. Even when one bit of one data changes, this can be detected by a checksum. The checksum can be said to be a feature value that represents the entire data of the RAM 2c-2.

  FIG. 11 shows a processing flowchart when the power switch is turned off, and FIG. 12 shows a processing flowchart when the power switch is turned on. In the second embodiment of the invention, the timing chart is the same as that in FIG.

  In FIG. 8A, when the power switch is on, the power supply voltage is a specified value (period P1). In the period P1, the power supply VDD is supplied to the RTC 2c-1 and the RAM 2c-2, and the backup power supply 2b is charged. When the power switch is turned off from on (time T1), the power supply voltage supplied to the sub-board 2 or the like does not decrease immediately, and after a while after the power switch is turned off, the power supply voltage becomes zero ( Time T2). During this period (period P2), the CPU or the like of the sub-board 2 can perform a predetermined process. When the power switch is turned from on to off (time T1), the power-off signal indicating that effect becomes effective immediately after that, so that the CPU or the like may execute processing at the end of the power source in response to the power-off signal. it can. Specifically, the process of FIG. 11 is performed in the period P2.

  That is, calculated a checksum of RAM (S21), and stores each checksum calculated to any address in RAM (previously decide whether to advance which address) (S22). Since the backup power is supplied to the RAM 2c-2, the characteristic value (check sum) of the RAM 2c-2 when the power is cut off is held in the RAM 2c-2 during the power cut-off period (period P3 in FIG. 8). become.

  The power supply voltage is zero in the period P3 after time T2 in FIG. 8A, but power is supplied from the backup power supply 2b to the RTC 2c-1 and the RAM 2c-2 as shown by the thick lines in FIGS. The Therefore, the RTC 2c-1 does not detect a decrease in the power supply voltage, and the contents of the RAM 2c-2 are retained.

  Next, as shown in FIG. 8B, when the power switch is turned on (time T3), the power supply voltage rises and quickly reaches the specified value. At that time, a reset signal is usually generated, and the CPU or the like starts an initial operation in the subsequent period P4. The process of FIG. 12 is performed as one of the initial operations.

  That is, the checksum of the RAM 2c-2 is obtained (S30), the checksum stored in the RAM 2c-2 when the power is cut off is read (S31), and both are compared (S32). The comparison process in S32 is to determine whether or not the power supply voltage has dropped, that is, whether or not the backup power supply 2b has deteriorated.

  If the checksum read in S31 for the RAM 2c-2 matches the checksum obtained in S30 (matched in S32), it means that the contents of the RAM 2c-2 are retained even when the power is turned off. Since it can be determined that the backup power source 2b is normal, the processing from S34 onward is performed to determine whether any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed.

  If the checksums do not match (does not match in S32), it means that the backup power supply 2b has deteriorated, so error processing (S33) is performed and a notification to that effect is given.

  Next, the flag register of RTC2c-1 is checked (S34), and it is checked whether the VLF bit is set (S35). When the VLF bit is not set (NO), it means that the battery is backed up even while the RTC 2c-1 is powered off, so either the wire harness WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed. It can be judged that it was not. Since this is a normal state, normal activation processing is performed (S37). At this time, the checksum stored in the RAM 2c-2 may be cleared.

  On the other hand, when one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is replaced in the power-off period (when the main board 1 or its ROM is replaced, the ROM is effective) In order to achieve this, it is necessary to turn off the power supply once), and when the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed, the power supply to the RTC 2c-1 is performed. Be cut off. This is because at least a part of the power supply line from the backup power supply 2b to the RTC 2c-1 is arranged so as to pass through the wire harness WH2. When one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed, the VLF bit of the RTC 2c-1 is set (= 1), and the bit is reset even when power is supplied again (= 0) is never done. As a result, the determination result in S35 is YES, error processing is performed, and notification is made that one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been replaced (S36). After this, the normal activation process is not performed, so that the game cannot be performed. Note that error processing may be performed when a VLF bit set is detected even during a period other than the power-off period.

  According to the second embodiment of the present invention, the backup power supply is supplied to the voltage drop detection semiconductor element (RTC) via one of the wire harnesses WH1, WH2 or the main substrate 1 (at least the wire harness WH2), and the wire harness When any of WH1, WH2 or main board 1 (at least wire harness WH2) is removed, the backup power supply to the voltage drop detection semiconductor element is cut off, and a backup failure occurs. Since the voltage drop detection semiconductor element is checked for voltage drop when the power is turned on, there is a voltage drop when any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed. It is detected that there is a possibility of fraud, and the game is stopped by shifting to an error state or the like.

  On the other hand, since the backup power supply line does not pass through the wire harness WH2, the volatile memory element (RAM) has a voltage even if one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is removed. Does not decrease and the feature values match. Therefore, when a voltage drop is detected only for the voltage drop detection semiconductor element, it is determined that one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed, and error processing is performed. By processing in this way, it is possible to determine that one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed, as distinguished from backup failure due to deterioration of the backup power supply.

  In the above description, the case where a checksum is obtained as a feature value has been described as an example, but the present invention is not limited to this. It suffices if a characteristic value unique to the contents of the volatile memory element (RAM) can be obtained. For example, a logical operation including logical product, logical sum, or exclusive logical sum is performed, or a hash value is obtained by a hash function. You may do it. The hash function is a calculation method for generating a fixed-length pseudorandom number from a given original text, and the generated value is called a “hash value”. Also called “summary function” or “message digest”. Since an irreversible one-way function is included, the original text cannot be reproduced from the hash value, and it is extremely difficult to create different data having the same hash value.

  In the above description, the feature value is written in the RAM 2c-2 itself, but the present invention is not limited to this. You may make it write in other RAM or non-volatile memory elements (EEPROM etc.) to which backup power is supplied.

Modification of Embodiment 2 of the Invention.
In the above example, the voltage drop detection semiconductor element (RTC) is applied to the element (first semiconductor element) that supplies the backup power via the wire harness WH2, and the element that supplies the backup power without passing through the wire harness WH2 (second Although the volatile memory element (RAM) is applied to the semiconductor element), the present invention is not limited to this. A volatile memory element (RAM) is applied to the element (first semiconductor element) that supplies the backup power via the wire harness WH2, and the element (second semiconductor element) that supplies the backup power without passing through the wire harness WH2 is used. A voltage drop detection semiconductor element (RTC) may be applied.

  In this case, the processes of S30 to S32 and the processes of S34 to S35 in FIG.

  That is, first, the flag register of RTC2c-1 is checked to see if the VLF bit is set. When the VLF bit is not set, it means that the RTC 2c-1 is backed up even while the power is off. Therefore, it can be determined that the backup power source 2b is normal. judge. When the VLF bit is set, it means that the backup power supply 2b has deteriorated, so error processing (S33) is performed to notify that effect.

  When the wire harness WH2 is removed during the power-off period P3, the supply of backup power to the RAM 2c-2 is cut off when the wire harness WH2 is removed. The contents of the RAM 2c-2 are lost and will not be restored even if power is supplied again (the contents become random). Therefore, with respect to the RAM 2c-2, the read checksum (checksum when the power is turned off) does not match the checksum obtained when the power is turned on. This is because, since the contents of the RAM 2c-2 are lost, the checksum obtained when the power is turned on is naturally different from that obtained when the power is turned off, and the stored checksum itself is also lost. Therefore, error processing is performed to notify that any of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) has been removed (S36).

  The modification of the second embodiment of the invention also has the same effect as the second embodiment of the invention.

Embodiment 3 of the Invention
In the second embodiment of the present invention, the decrease in the power supply voltage is detected using the feature value of the content of the volatile memory element, but the same detection can be performed by comparing the data itself without obtaining the feature value. . Examples are listed. The following example can also be applied to a modification of the second embodiment of the invention.

(1) By saving all data in the RAM 2c-2, for example, by writing to another RAM or a non-volatile storage element (EEPROM, etc.) to which backup power is supplied, the data is held even when the power is cut off. In general, evacuation is temporary in order to use the contents of a specific storage location (location), region (region), register (register), etc. on the main storage for other purposes. In other words, it is stored in another storage location of the main storage device or in an auxiliary storage.
When the power is turned off, all data in the RAM 2c-2 is read, and these are written in another RAM or a non-volatile memory element. When the power is turned on, all data in the RAM 2c-2 is read and compared with the saved data. As a result of the comparison, when a discrepancy occurs in all or part of the data, it is determined that the power supply voltage has decreased.

(2) By saving a part of the data in the RAM 2c-2, for example, by writing to another RAM or a non-volatile storage element (EEPROM, etc.) to which backup power is supplied, the data is held even when the power is cut off.
When the power is turned off, a part of the data in the RAM 2c-2 is read, and these are written in another RAM or a nonvolatile memory element. When the power is turned on, a part of the data in the RAM 2c-2 (at the same address as when the power is turned off) is read and compared with the saved data. As a result of the comparison, when a discrepancy occurs in all or part of the data, it is determined that the power supply voltage has decreased. Only the data at one address may be saved. Since the data of all addresses in the RAM is affected by the power interruption, the determination can be made only by monitoring the data of one address.

(3) A part of the data in the RAM 2c-2 is written (saved) in an area prepared in advance in the RAM 2c-2. Other points are the same as (2) above.

  The third embodiment of the invention has the same effect as the second embodiment of the invention.

Embodiment 4 of the Invention
Even if a specific value is written at a specific address in the RAM and it is determined whether or not it is maintained when the power is turned on, the same effects as those of the first to third embodiments of the present invention can be obtained. The specific address of the RAM is always determined to be a specific value at least when the power is turned off, and if it is not maintained when the power is turned on, it is determined that the power supply voltage has decreased. In this case, it is not necessary to obtain the characteristic value, and it is not necessary to read the contents of the RAM when the power is turned off.

  FIG. 13 shows a flowchart of the preliminary data writing process according to the fourth embodiment of the invention, and FIG. 14 shows a flowchart of the process when the power switch is turned on. The process of writing a specific value to the specific address in FIG. 13 may be performed when the power is turned off (period P2 in FIG. 8), or may be performed at any other timing (such as at initialization). You may make it repeat repeatedly regularly or irregularly.

  The fourth embodiment of the invention has the same effects as the first embodiment of the invention.

Embodiment 5 of the Invention
FIG. 15 shows a connection diagram of the backup power supply system according to the fifth embodiment of the present invention. This figure shows only the parts necessary for explaining the operation of the fifth embodiment of the present invention, and the display of the CPU and ROM on the sub-board 2 and the display of address signals and data signals are omitted.

  In FIG. 15, 2b-1 and 2b-2 are backup power supplies for supplying power to the RTC 2c-1 and the RAM 2c-2, respectively, when the power is turned off. The backup power supply 2b-1 is provided in the power supply unit 205, and the backup power supply 2b-2 is provided in the sub board 2. The capacity of the backup power supply 2b-2 is set to be smaller than that of the backup power supply 2b-1. For example, the current consumption of the RTC 2c-1 and the RAM 2c-2 is the same, and the voltage value (threshold value) determined to be a voltage drop in the RTC 2c-1 is the same as the voltage value at which the contents of the RAM 2c-2 are lost. In such a case, the backup power source 2b-2 is composed of one secondary battery, and the backup power source 2b-1 is composed of two secondary batteries, or secondary batteries having different capacities are used. Is to do. In general, the capacity of a battery (power supply) is expressed by how much current can be supplied for how long, for example, the current that can flow (A: amps) and the time (H: time). (Hour)) product (AH). However, the “capacity” used in the description of the embodiment of the present invention is not simply the capacity of the battery (power source) itself (details will be described later). The capacity of the backup power supply 2b-2 is smaller than that of the backup power supply 2b-1, which means that the backup battery 2b-2 is stored first with the backup batteries 2b-1 and 2b-2 attached to the gaming machine. It means that electric energy is exhausted (increased). As long as general operation is performed, the backup power supply will not increase in gaming machines. In such a case, it is desirable to replace the backup power supply, considering that the performance of the backup power supply itself has deteriorated. Backup power supplies 2b-1 and 2b-2 are often replaced together).

  Reference numeral 2c-1 denotes an RTC that receives power from the backup power source (first backup power source) 2b-1. Reference numeral 2c-2 denotes a RAM (volatile storage element) that receives power from the backup power source (second backup power source) 2b-2. The RTC 2c-1 and the RAM 2c-2 are supplied with power from the backup power source when the power is cut off, but the backup power sources receiving the power supply are different, and the wiring route from the backup power source is different. 2d is a determination unit that determines whether any of the wire harnesses WH1 and WH2 or the main board 1 (at least the wire harness WH2) is removed. 2e-1 receives the power supply (DC voltage) VDD of the substrate, supplies it to the backup power supply 2b-1, charges it, and prevents the current of the backup power supply 2b-1 from flowing back to the power supply VDD when the power is cut off. This is a diode. Reference numeral 2e-2 denotes a diode provided in the backup power supply 2b-2, which performs the same function.

  In FIG. 15, the backup power supply 2b-1 is mounted on the power supply unit 205, but at least a part of the power supply line from the backup power supply 2b-1 to the RAM 2c-1 is arranged so as to pass through the wire harness WH2. Yes. On the other hand, the backup power supply 2b-2 is provided on the sub board 2, and the power supply line to the RAM 2c-2 is not routed from the outside. That is, the connection between the backup power supply 2b-2 and the RAM 2c-2 exists only on the sub-board 2, and does not go outside.

  The backup power supply system may be as shown in FIG. The power supply unit 205 is provided with a backup power supply 2b-2, and its output is directly connected to the wiring P21 of the sub-board 2 by the wire harness WH31.

According to the configurations of FIGS. 15 and 16, it is possible to detect that any of the wire harnesses WH1, WH2 or the main board 1 has been removed, as distinguished from a backup failure due to deterioration of the backup power supply 2b.
Since the process of the determination unit 2d in the fifth embodiment of the invention is the same as that in the second to fourth embodiments, the description thereof is omitted.

The meaning of “large or small capacity” used in the description of the embodiment of the present invention will be described.
Even when the backup power supply 2b-1 is deteriorated, the RTC 2c-1 detects a decrease in the power supply voltage in the same manner as when the wire harness WH2 is removed, but the capacity of the backup power supply 2b-1 is the capacity of the backup power supply 2b-2. Therefore, the power of the backup power supply 2b-2 is exhausted first, and the contents of the RAM 2c-2 also change. The RTC 2c-1 and the RAM 2c-2 are each checked for the presence or absence of a decrease in power supply voltage, and by comprehensively judging these results, either the wire harness WH1, WH2 or the main board 1 (at least the wire harness WH2) Can be distinguished from the case where the backup power supply has deteriorated.

  Since the backup power supply 2b-2 is configured to have a smaller capacity than the backup power supply 2b-1, the RAM 2c-2 always has a backup failure first when it is naturally discharged. The reason for preparing a plurality of backup batteries having different capacities is that there is a difference in voltage and current consumption that cause backup failure between RTC and RAM. If the backup battery 2b-1 runs out of power first in relation to the power consumption of the RTC, the wire harness WH1, WH2 or the main board 1 (at least the wire harness WH2) is not removed. The frequency with which it is determined that one of WH1, WH2 or main board 1 (at least the wire harness WH2) has been removed increases. By providing a difference in capacity, the RAM 2c-2 surely has a backup failure first during natural discharge, and there is an erroneous alarm, that is, one of the wire harnesses WH1, WH2 or the main board 1 (at least the wire harness WH2) is erroneously removed. It is possible to avoid notifying an error that there was an illegal act.

  From this point of view, the difference between the capacity of the backup power supply 2b-1 and the capacity 2b-2 becomes the backup failure of the RTC 2c-1 so that the RAM 2c-2 is surely failed first in the natural discharge. It is preferable to make a determination based on the difference between the voltage and / or current consumption and the voltage and / or current consumption causing the backup failure of the RAM 2c-2. For example, if the ratio of the current consumption of the RTC 2c-1 and the current consumption of the RAM 2c-2 is 1: 2, the ratio of the capacity of the backup power supply 2b-1 to the capacity of the backup power supply 2b-2 is 1: 1. It can be said that “the backup power supply 2b-2 has a smaller capacity than the backup power supply 2b-1.” Further, if the ratio of the current consumption of the RTC 2c-1 and the current consumption of the RAM 2c-2 is 1:10, even if the ratio of the capacity of the backup power supply 2b-1 to the capacity of the backup power supply 2b-2 is 1: 5. It can be said that “the backup power supply 2b-2 has a smaller capacity than the backup power supply 2b-1.” As described above, the magnitude of the capacity according to the embodiment of the present invention is relatively determined in relation to the magnitude of the power consumption of the device targeted by the backup power supply (and / or the level of the voltage causing the backup failure). Note that the battery capacity is not simply the capacity of the battery itself (note that the power consumption at the time of backup of the RTC 2c-1 and the RAM 2c-2 (and / or the level of voltage causing backup failure)) Of course, the capacity in the ordinary sense can be applied to the embodiment of the present invention).

  According to the fifth embodiment of the invention, the same effects as those of the second embodiment of the invention can be obtained, and the capacity of the RTC backup power supply is made smaller than the capacity of the RAM backup power supply. It is possible to avoid performing error notification and improve reliability.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

It is a front view of the slot machine which shows the state which closed the front door. It is a front view of the slot machine which shows the state which opened the front door 180 degree | times. It is a front view of the power supply part of a slot machine. It is a block diagram of a gaming machine. It is a block diagram which shows the backup power supply system which concerns on Embodiment 1 of invention. It is a block diagram which shows the state which removed the 2nd wire harness by the backup power supply system which concerns on Embodiment 1 of invention. It is a process flowchart at the time of ON of the power switch which concerns on Embodiment 1 of invention. 3 is a timing chart for explaining the operation of the first embodiment of the invention. It is a block diagram which shows the backup power supply system which concerns on Embodiment 2 of invention. It is a block diagram which shows the other backup power supply system which concerns on Embodiment 2 of invention. It is a process flowchart at the time of OFF of the power switch which concerns on Embodiment 2 of invention. It is a process flowchart at the time of ON of the power switch which concerns on Embodiment 2 of invention. In the flowchart of the prior data write processing which concerns on Embodiment 4 of invention. It is a process flowchart at the time of ON of the power switch which concerns on Embodiment 4 of invention. It is a block diagram which shows the backup power supply system which concerns on Embodiment 5 of invention. It is a block diagram which shows the other backup power supply system which concerns on Embodiment 5 of invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main board | substrate 2 Sub board | substrate 2b, 2b-1, 2b-2 Backup power supply 2c, 2c-1 RTC (voltage drop detection semiconductor element)
2c-2 RAM (volatile memory element)
2d determination unit 2e, 2e-1, 2e-2 Diode 100 Slot machine 120 Slot machine body 121 Hopper device 122 Hopper tank 130 Front door 131 Game display unit 132 Reject button 133 Start switch 135 Payout port 136 Outlet path 140 Stop Button 205 Power supply P1, P2, P205 Backup power supply wiring WH Wire harness (harness)

Claims (3)

A main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board, performs an effect process, a power supply unit that supplies power to the main board and the sub board, and power to the main board In a gaming machine comprising a first wire harness for supplying, and a second wire harness and a third wire harness for supplying power to the sub-board,
A backup power supply provided in the power supply unit for supplying power when the power is cut off,
A first semiconductor element and a second semiconductor element which are provided on the sub-board and receive power from the backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The first semiconductor element is supplied with electric power from the backup power source through the second wire harness,
The second semiconductor element is supplied with power from the backup power source through the first wire harness or the third wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the backup power supply has deteriorated,
When the determination result related to the first semiconductor element indicates a voltage drop and the determination result related to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed. To play. A main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board, performs an effect process, a power supply unit that supplies power to the main board and the sub board, and power to the main board In a gaming machine comprising a first wire harness for supplying, and a second wire harness and a third wire harness for supplying power to the sub-board,
A first backup power source and a second backup power source provided in the power source unit for supplying power when the power is cut off;
A first semiconductor element provided on the sub-board and receiving power from the first backup power source; and a second semiconductor element receiving power from the second backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the second backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The capacity of the second backup power supply is smaller than the capacity of the first backup power supply,
The first semiconductor element is supplied with power from the first backup power source through the second wire harness,
The second semiconductor element is supplied with power from the second backup power source through the first wire harness or the third wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the second backup power supply has deteriorated,
When the determination result related to the first semiconductor element indicates a voltage drop and the determination result related to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed. To play. A main board that performs a lottery process relating to a game, a sub board that receives a command signal from the main board, performs an effect process, a power supply unit that supplies power to the main board and the sub board, and power to the main board In a gaming machine comprising a first wire harness for supplying and a second wire harness for supplying power to the sub-board,
A first backup power supply provided in the power supply unit for supplying power when the power is cut off;
A second backup power source provided on the sub-board for supplying power when the power is cut off;
A first semiconductor element provided on the sub-board and receiving power from the first backup power source; and a second semiconductor element receiving power from the second backup power source;
A determination unit that determines presence or absence of removal of the second wire harness or deterioration of the second backup power source based on outputs of the first semiconductor element and the second semiconductor element;
The capacity of the second backup power supply is smaller than the capacity of the first backup power supply,
The first semiconductor element is supplied with power from the first backup power source through the second wire harness,
One of the first semiconductor element and the second semiconductor element is a voltage drop detection semiconductor element that sets a flag indicating that a power supply voltage has dropped or outputs a signal, and the other is a volatile memory element. And
The determination unit
When the power is turned off, the storage content of the volatile storage element is obtained, and this is stored as the storage content when the power is turned off.
When the power is turned on, the storage content of the volatile storage element is obtained and compared with the stored storage content when the power is turned off. When the comparison result is inconsistent, the power supply voltage of the volatile storage element decreases. Determined that
At the time of turning on the power, it is determined whether the power supply voltage of the voltage drop detection semiconductor element is lowered based on the flag or the signal of the voltage drop detection semiconductor element,
The determination unit
When the determination results of both the first semiconductor element and the second semiconductor element do not indicate a voltage drop, it is determined that the second wire harness has not been removed,
When the determination result related to the second semiconductor element indicates a voltage drop, it is determined that the second backup power supply has deteriorated,
When the determination result related to the first semiconductor element indicates a voltage drop and the determination result related to the second semiconductor element does not indicate a voltage drop, it is determined that the second wire harness has been removed. To play.

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