JP5487602B2 - System and method for detecting fraud in a casino - Google Patents

Description

  The present invention relates to a system and method for detecting fraudulent acts performed in conspiracy by dealers and players in a casino amusement park.

  Conventionally, various illegal acts have been performed in casino games. For this reason, casino amusement halls are often equipped with surveillance cameras for monitoring fraud. In this case, an illegal act of a dealer (a casino game provider) or a player (a casino game hall customer) is monitored using the video of the surveillance camera.

  In casino games, wagers and refunds are often exchanged using “chips”. In some cases, fraudulent acts such as misrepresenting the number and type of chips are performed. For this reason, a system has been proposed in which bets and payouts are automatically calculated by incorporating an IC tag in each chip.

For example, in the fraud prevention system described in Patent Document 1, when a player places a chip on a table, an IC tag built in the chip is read by a player IC tag reader, and a wager for each player is calculated. The When the dealer distributes the card, the IC tag reading device for the dealer reads the IC tag built in the card, and the type and score of the card are automatically recognized. When the game is over, a payout amount to the winning player is calculated, and the result is displayed on the monitor device. Further, the IC tag of the refund chip is read, and the calculated refund amount is compared with the amount represented by the refund chip. If they do not match, an alarm is output.
JP 2005-342175 A

  In casino games, dealers and players often engage in collusion. For example, an illegal act may be performed in which a dealer intentionally wins a specific player. Such cheating is generally difficult to detect.

  Accordingly, there is a demand for the development of a method or system for detecting fraudulent acts performed in conspiracy by dealers and players in a casino game hall.

  The cheating detection system according to one aspect of the present invention includes a recording unit and a detection unit, and detects cheating in a casino game hall. The recording unit records the game result of each player in association with the dealer. A detection part totals a game result for every combination of a dealer and a player, and detects the combination of a dealer and a player which shows the game result exceeding the predetermined criterion.

  In the fraud detection system configured as described above, the game results are counted for each combination of the dealer and the player. If the game result of a combination of a dealer and a player exceeds a predetermined criterion, it is determined that there is a high possibility that the dealer and the player are performing collusion in a conspiracy.

  According to the disclosed system or method, it is possible to detect fraudulent acts that a dealer and a player conspire in a casino game hall.

  FIG. 1 is a diagram schematically showing an entire image of a casino game hall. The casino game hall 1 includes a plurality of game facilities. In FIG. 1, three game facilities 2a to 2c are illustrated, but the number of game facilities is not particularly limited.

  In each of the game facilities 2a to 2c, a game involving a dealer is performed. In the example shown in FIG. 2, dealers 3a to 3c provide games at the game facilities 2a to 2c, respectively. In addition, the game performed in each game facility 2a-2c is not specifically limited, For example, they are a card game, a roulette game, etc.

  A dealer ID card 4 is distributed to each of the dealers 3a to 3c. In the dealer ID card 4, a dealer ID number for identifying each dealer is recorded. In addition, a player ID card 6 is distributed to each player (that is, a customer of the casino game hall 1) when entering the casino game hall 1. In the player ID card 6, a player ID number for identifying each player is recorded. At this time, the player ID number of the issued player ID card is registered in the computer system 11 described later. Note that the player ID card 6 has a function of charging a game wager, a function of recording a game balance, and the like. Then, the player ID card 6 is collected at the exit of the casino game hall 1. At this time, the player ID card 6 is used to perform payment according to the game result.

  Each of the game facilities 2a to 2c includes a dealer ID card reader 7. When the dealers 3 a to 3 c start the game at the game facilities 2 a to 2 c, the dealer ID cards 4 respectively distributed are inserted into the dealer ID card reader 7. When the dealer ID card 4 is inserted, the dealer ID card reader 7 reads the dealer ID number and transmits it to the computer system 11. In the example shown in FIG. 1, the dealer ID card 4 of the dealer 3b is inserted into the dealer ID card reader 7 provided in the gaming facility 2b. Although not shown in FIG. 1, the dealer ID cards 4 of the dealers 3a and 3c are also inserted into the corresponding dealer ID card readers 7 in the game facilities 2a and 2c, respectively, and the dealer ID number is assigned to the computer system. 11 is transmitted.

  When the dealers 3a to 3c finish the game at the game facilities 2a to 2c, the dealers 3a to 3c remove the distributed dealer ID card 4 from the dealer ID card reader 7. When the dealer ID card reader 7 is extracted, the dealer ID card reader 7 notifies the computer system 11 to that effect. Therefore, the computer system 11 can recognize which dealer is playing the game at which time zone in each of the game facilities 2a to 2c.

  In each of the game facilities 2a to 2c, a plurality of player seats for the player 5 to sit are provided. For example, the game facility 2b includes player seats 8a to 8g. Each of the game facilities 2 a to 2 c includes a player ID card reader 9. A player ID card reader 9 is provided for each player seat.

  The player 5 can participate in the game at a desired gaming facility. When the player 5 participates in the game, the player ID card 6 is inserted into the player ID card reader 9 provided for the seated player seat. When the player ID card 6 is inserted, the player ID card reader 9 reads the player ID number and transmits it to the computer system 11. In the example shown in FIG. 1, the player 5 a is seated in the player seat 8 d of the gaming facility 2 b and the player ID card 6 is inserted into the corresponding player ID card reader 9. In this case, information representing a state in which the player 5a is seated in the player seat 8d of the gaming facility 2b and participates in the game is transmitted from the ID card reader 9 to the computer system 11.

  The player 5 pulls out the distributed player ID card 6 from the player ID card reader 9 when the game is ended at the game facilities 2a to 2c. When the player ID card 6 is extracted, the player ID card reader 9 notifies the computer system 11 to that effect. Therefore, the computer system 11 can recognize which player is sitting at which player seat and participating in the game at each game facility 2a to 2c.

  Furthermore, the game facilities 2 a to 2 c include a balance calculator 10. The balance calculator 10 has a function of detecting the amount betted by each player (and what was bet depending on the type of game), a function of recognizing a game result, and a function of calculating a refund amount to each player. It has. These functions are not particularly limited, but may be realized using known techniques. In this case, for example, the chips used in the game facilities 2a to 2c may each have a built-in IC tag for displaying the amount of money as described in Patent Document 1 described above.

  The function of detecting the amount betted by each player is realized by, for example, an RFID system that detects an IC tag of a chip placed in a predetermined area by each player. The function of recognizing the game result is realized by an RFID system that detects the type of each card in a card game. In this case, it is assumed that an IC tag for identifying the card type is built in each card. Alternatively, in the roulette game, it is realized by a sensor that detects the color and number of the frame in which the roulette ball is rolled. Furthermore, the function of calculating the payout amount to each player is realized by a calculator that calculates the payout amount according to the wager amount and game result of each player.

  The balance calculator 10 updates the charge amount written in the player ID card 6 of each player 5 according to the game result. Further, the balance calculator 10 notifies the computer system 11 of the balance calculation result of each player 5. At this time, the balance calculator 10 may notify the computer system 11 of the balance calculation result of each player 5 for each game. Alternatively, the balance calculator 10 gives the computer system 11 the balance calculation result of “a series of games” from when the player 5 inserts the player ID card 6 into the ID card reader 9 until the player ID card 6 is removed. You may be notified.

  The computer system 11 receives game information transmitted from the dealer ID card reader 7, the player ID card reader 9, and the balance calculator 10, and stores it in the game result database. The game result database records the game results of each player 5 in association with the dealers 3a to 3c. The game result database is constructed in, for example, a storage device built in the computer system 11 or a storage device connected to the outside of the computer system 11.

  FIG. 2 is a diagram showing the configuration of the game result database. In the game result database 21, the result of “a series of games” is registered for each player (that is, the player ID number). A “series of games” is a game played by the same dealer at the same gaming facility, and the player ID card 6 from when the player ID card 6 is inserted into the ID card reader 9 at a gaming facility. It means one or a plurality of games that have participated until 6 is extracted. Therefore, when the dealer changes in the middle, the next “series of games” is started.

  As a game result, “dealer ID”, “table number”, “game time”, “balance”, “state”, and the like are registered. The “dealer ID” is a dealer ID number read by the dealer ID card reader 7 and identifies the dealer who played the game. The “game table number” identifies the game facilities 2a to 2c in which the player 5 has participated in the game. The “game table number” also includes information for identifying the player seat where the player 5 is seated. These pieces of information are created based on a notification from the player ID card reader 9. “Game time” represents the time from when the player ID card 6 is inserted into the ID card reader 9 until the player ID card 6 is removed. “Balance” represents a balance calculation result of a series of games in which the player 5 participates, and is created based on a notification from the balance calculator 10. The “state” indicates whether or not the player 5 has finished a series of games, and is updated according to a notification from the ID card reader 9.

  In the example shown in FIG. 2, the first player (ID = 20081010001) is seated in the player seat “2” of the gaming machine number “3” and participates in the game as the first series of games. At this time, a dealer (ID = 1001) played a game in this amusement facility. The participation time was “80 minutes”. The balance was “−100”. Subsequently, as the second series of games, the first player is seated in the player seat “6” of the game machine number “5” and participates in the game. A dealer (ID = 1002) is playing a game. Further, the second player (ID = 20081010002) is seated in the player seat “1” of the game machine number “3” and participates in the game as the first series of games. At this time, a dealer (ID = 1001) is playing a game in this gaming facility. Further, the third player (ID = 20081010003) took part in the game as the first series of games, sitting in the player seat “4” of the gaming machine number “8”. At this time, a dealer (ID = 1115) played a game in this gaming facility. The participation time was “120 minutes”. And the balance was “+100”.

  Returning to FIG. The computer system 11 refers to the game result database 21 and totals the game results for each combination of dealer and player. Then, the computer system 11 detects a combination of a dealer and a player showing a game result exceeding a predetermined criterion as a “dealer and player who may be cheating in collusion”.

  The surveillance camera 12 captures a moving image in the casino amusement hall 1 in accordance with an instruction from the computer system 11. When the computer system 11 detects a “dealer and player who may be fraudulently conspiring”, the monitoring camera 12 acquires the image of the dealer and / or player.

  The position of the dealer to be monitored is detected by identifying the dealer ID card reader 7 in which the dealer ID card 4 is inserted. Similarly, the position of the player to be monitored is detected by identifying the player ID card reader 9 in which the player ID card 6 is inserted. Here, for example, it is assumed that the game result of the combination of the dealer 3b and the player 5a exceeds a predetermined criterion. In this case, the video of the dealer who is playing the game at the gaming facility 2b (that is, the dealer 3b) and the player who is sitting in the player seat 8d of the gaming facility 2b and that is participating in the game (that is, the player 5a) Taken by The video acquired by the monitoring camera 12 is displayed in real time on the display device 13 connected to the computer system 11. The video is stored in a storage device as necessary.

In this way, when “dealer and player who may be cheating in collusion” is detected, the image of the dealer and the player is displayed on the display device 13. Therefore, the supervisor of the casino amusement hall 1 can intensively monitor dealers and players who may conspire and cheat.

FIG. 3 is a flowchart illustrating the cheating detection method according to the embodiment. The process of this flowchart is executed by the computer system 11. The determination according to this flowchart is made for each player. In this embodiment, it is assumed that the following conditions 1 to 3 are set in advance in the computer system 11 in order to detect a combination of a dealer and a player who may be cheating. These conditions are set by, for example, an administrator of the casino amusement hall 1.
Condition 1: Participated in a game played by the same dealer three times or more Condition 2: Three games of Condition 1 have all won in three games of Condition 3: Condition 1 which are different game facilities ( The balance is positive)
First, it is assumed that the player 5 sits at a player seat in a desired gaming facility and inserts the player ID card 6 into the player ID card reader 9. Then, in step S <b> 1, the computer system 11 registers the game machine number and the seat number in the game result database 21 in association with the player ID number based on the notification from the player ID card reader 9. At this time, a dealer ID number for identifying the dealer playing the game at the gaming facility is also registered.

  When the player 5 finishes the series of games, the player ID card 6 is extracted from the player ID card reader 9. At this time, the game result of the player 5 is notified from the balance calculator 10 to the computer system 11. Then, in step S2, the computer system 11 records the balance result in the game result database 21 in association with the player ID number.

  FIG. 4 shows an example of the game result database 21 created by executing the processes of steps S1 and S2 for each player. In the embodiment shown in FIG. 4, game result information for player X (ID = 20081010011) and player Y (ID = 20081010013) is registered. Player X participates in a game played by the same dealer (ID = 1009) in three different game facilities (6, 7, 8). The balance of the player X at each gaming facility is “+300”, “+500”, and “+1200”, respectively. Player Y participates in a game played by the same dealer (ID = 1200) in three different game facilities (5, 2, 6). The balance of the player Y at each gaming facility is “+2000”, “−100”, and “+2500”, respectively.

  The computer system 11 refers to the game result database 21 and executes steps S3 to S6 for each player. In step S3, the computer system 11 checks whether or not game results for three or more “series games” are registered. When game results for three or more “series games” are registered, the computer system 11 determines whether or not the condition 1 is satisfied in step S4. That is, it is checked whether the player 5 has participated in the game played by the same dealer three times or more.

  If condition 1 is satisfied, in step S5, the computer system 11 determines whether or not condition 2 is satisfied. That is, it is checked whether three or more games by the same dealer with which the player 5 has participated have been played at different game facilities. If condition 2 is satisfied, in step S6, the computer system 11 determines whether or not condition 3 is satisfied. That is, it is checked whether the balance of the three or more games is all positive. If the conditions 1 to 3 are satisfied, it is determined that there is a high possibility of fraud by the collusion between the dealer and the player, and the process proceeds to step S7.

  In step S7, the computer system 11 starts an operation relating to a dealer and a player who are determined to have a high possibility of fraud. The monitoring operation in step S7 includes a process in which the computer system 11 transmits an instruction to cause the monitoring camera 12 to photograph the target dealer / player, and a process in which an alarm (alarm sound, alarm display, etc.) is output. The video of the monitoring camera 12 is displayed on the display device 13. The video data of the monitoring camera 12 is recorded in a storage device as necessary.

  Here, the detection method shown in FIG. 3 is applied to the players X and Y shown in FIG. First, since the player X participates in the game played by the same dealer (1009) three times, the determination result of steps S3 and S4 is “Yes”. In addition, since the three games are performed in different game facilities (6, 7, 8), the determination result in step S5 is also “Yes”. Further, since the balance of the above three games is all positive (+300, +500, +1200), the determination result in step S6 is also “Yes”. Therefore, it is determined that the combination of the dealer (1009) and the player X is the monitoring target person.

  Since the player Y has visited the game played by the same dealer (1200) three times, the determination result of steps S3 and S4 is “Yes”. In addition, since the three games are performed in different game facilities (5, 2, 6), the determination result in step S5 is also “Yes”. However, since the balance of the second game is negative (+2000, −100, +2500), the determination result in step S6 is “No”. In this case, it is determined that the combination of the dealer (1200) and the player Y is not a monitoring target person.

  This algorithm is based on the premise that it is unnatural that a player continues to win three or more consecutive times in the same dealer / player combination. Therefore, by using this algorithm, it is possible to detect a player who continues to win unnaturally in a game played by a specific dealer.

  FIG. 5 is a detailed flowchart of the monitoring operation. The process of this flowchart corresponds to step S7 shown in FIG. 3, and is executed by the computer system 11 when a combination of a suspicious dealer and a player is detected.

  In step S11, an alarm is sounded by the computer system 11. That is, the alarm in the monitoring room of the casino amusement hall 1 is sounded for a certain time. In step S12, the computer system 11 performs monitor display. In other words, the dealer ID number of the detected dealer, the player ID number of the detected player, and information (game table number and seat number) specifying the gaming facility and player seat in which the player participates are displayed on the display device 13. Is done. In step S <b> 13, the surveillance camera is controlled by the computer system 11. That is, the surveillance camera 12 installed in the gaming facility is controlled so as to zoom in on the player sitting at the specified player seat in the specified gaming facility.

  In step S14, the video of the surveillance camera 12 controlled in step S13 is recorded for a certain period by the computer system 11. In step S <b> 15, the recording data is stored by the computer system 11 together with information for identifying the recording date and time and the monitoring camera 12. In addition, the video of the specified player may be acquired, and the video of the specified dealer may be acquired together.

FIG. 6 is a flowchart showing a fraud detection method based on another policy. In the processing of this flowchart, it is assumed that the following conditions 4 to 6 are set in the computer system 11. Note that the processing in steps S1, S2, and S7 is the same as the flowchart shown in FIG.
Condition 4: Participated in a game played by the same dealer at least twice Condition 5: Winned twice in a game played by the same dealer (plus / minus)
Condition 6: The balance of the above two games is a plus of 1000 or more. The computer system 11 refers to the game result database 21 and executes the processes of steps S21 to S24 for each player. In step S21, the computer system 11 checks whether or not game results for two or more “series of games” are registered. If game results for two or more “series of games” are registered, the computer system 11 determines whether or not the condition 4 is satisfied in step S22. That is, it is checked whether or not the player 5 has participated in the game played by the same dealer twice or more.

  If condition 4 is satisfied, the computer system 11 determines whether or not condition 5 is satisfied in step S23. That is, it is checked whether the balance of the two games by the same dealer to which the player 5 participates is positive. If the condition 5 is satisfied, the computer system 11 determines whether or not the condition 6 is satisfied in step S24. That is, it is checked whether the balance of the two games is “+1000 or more”. If conditions 4 to 6 are satisfied, it is determined that there is a high possibility of fraudulent acts due to conspiracy between the dealer and the player, and the process proceeds to step S7.

  Here, the detection method shown in FIG. 6 is applied to the players X and Y shown in FIG. First, the player X is determined as follows when the second “series of games” is completed. That is, since the player X has visited the game performed by the same dealer (1009) twice, the determination result of steps S21 and S22 is “Yes”. Further, since the balance of the two games is both positive (+300, +500), the determination result in step S23 is also “Yes”. However, since the balance of the two games is 1000 or less, the determination result in step S24 is “No”. Therefore, it is determined that the combination of the dealer (1009) and the player X is not a monitoring target person.

  Subsequently, when the third “series of games” is completed, the player X is determined as follows. That is, since the player X has visited the game played by the same dealer (1009) at least twice, the determination result of steps S21 and S22 is “Yes”. Further, since the balance of the game of two or more times is plus (+300, +500, +1200), the determination result in step S23 is also “Yes”. However, since there is only one game with a balance of “+1000 or more”, the determination result in step S24 is “No”. Therefore, even at this time, it is determined that the combination of the dealer (1009) and the player X is not the person to be monitored.

  Player Y is determined as follows when the second “series of games” is completed. That is, since the player Y has visited the game played by the same dealer (1200) twice, the determination result of steps S21 and S22 is “Yes”. However, since one of the balances of the two games is minus (+2000, −100), the determination result in step S23 is “No”. Therefore, it is determined that the combination of the dealer (1200) and the player Y is not a monitoring target person.

Subsequently, the player Y is determined as follows when the third “series of games” is completed. That is, since the player Y has visited the game performed by the same dealer (1200) at least twice, the determination result of steps S21 and S22 is “Yes”. In addition, since the balance is positive (+2000, −100, +2500) in two or more games, the determination result in step S23 is also “Yes”. Furthermore, since there are two games whose balance is “+1000 or more”, the determination result in step S24 is also “Yes”. Therefore, at this time, it is determined that the combination of the dealer (1200) and the player Y is the monitoring target person.

  This algorithm is based on the premise that it is unnatural that a player wins more than once in the same dealer / player combination. Therefore, by using this algorithm, it is possible to detect a player that is repeatedly provided in a game played by a specific dealer.

  Thus, if the conditions for detecting fraud are changed, the detected object may change. Therefore, these conditions are preferably optimized to enable fraud detection with high accuracy. The above-mentioned conditions 1 to 3 and conditions 4 to 6 are examples, and various other conditions can be considered. For example, the balance may be tabulated according to the type of game, and a combination of a dealer and a player that makes a profit compared to the expected value may be detected.

  FIG. 7 is a diagram illustrating a hardware configuration of the computer system 11. In FIG. 7, the CPU 101 uses the memory 103 to execute a fraud detection program. The cheating detection program describes, for example, the processing of the flowchart shown in FIG. 3 or FIG. The storage device 102 is, for example, a hard disk and stores a fraud detection program. Note that the storage device 102 may be an external recording device. The memory 103 is a semiconductor memory, for example, and includes a RAM area and a ROM area.

  The reading device 104 accesses the portable recording medium 105 according to an instruction from the CPU 101. The portable recording medium 105 includes, for example, a semiconductor device (PC card or the like), a medium to / from which information is input / output by a magnetic action, and a medium to / from which information is input / output by an optical action. The communication interface 106 transmits / receives data via a network in accordance with instructions from the CPU 101. That is, the communication interface 106 receives notifications from the dealer ID card reader 7, the player ID card reader 9, and the balance calculator 10. The communication interface 106 transmits a control signal to each monitoring camera 12. In this embodiment, the input / output device 107 corresponds to an input device that receives information from the administrator, the display device 13, and the like.

The fraud detection program according to the embodiment is provided in the following form, for example.
(1) Installed in advance in the storage device 102.
(2) Provided by the portable recording medium 105.
(3) Download from the program server 110.
Then, when the computer system 11 executes the fraud detection program, the fraud detection system according to the embodiment is realized.

The following supplementary notes are further disclosed with respect to the embodiments including the above examples.
(Appendix 1)
A system for detecting fraud in a casino amusement hall,
A recording unit for recording game results of each player in association with dealers;
A detection unit that counts the game results for each combination of the dealer and the player, and detects a combination of the dealer and the player that indicates a game result exceeding a predetermined criterion.
A fraud detection system having:
(Appendix 2)
The cheating detection system according to appendix 1,
A balance calculator for calculating the balance of each player in association with the game facility and the dealer;
The recording unit records the balance of each player calculated by the balance calculation unit as the game result,
The detection unit detects a combination of a dealer and a player having a positive balance in a predetermined number or more of game facilities.
(Appendix 3)
The cheating detection system according to appendix 1,
A balance calculator for calculating the balance of each player in association with the game facility and the dealer;
The recording unit records the balance of each player calculated by the balance calculation unit as the game result,
The detection unit detects a combination of a dealer and a player whose balance exceeds a threshold level in a predetermined number or more of game facilities.
(Appendix 4)
The cheating detection system according to appendix 1,
Information indicating that the balance of a predetermined number of games is all positive is set as the determination criterion.
(Appendix 5)
The cheating detection system according to appendix 1,
Information indicating that the balance exceeds a threshold level in a predetermined number of games is set as the criterion.
(Appendix 6)
The cheating detection system according to appendix 1,
A fraud detection system, further comprising a surveillance camera that acquires an image of at least one of a combination of a dealer and a player detected by the detection unit.
(Appendix 7)
The cheating detection system according to appendix 1,
A first reading unit that reads a dealer ID assigned to an ID device distributed to each dealer;
A second reading unit that reads a player ID assigned to an ID device distributed to each player;
The fraud detection system, wherein the recording unit records a game result by using a dealer ID and a player ID read by the first and second reading units.
(Appendix 8)
A method for detecting fraud in a casino amusement hall,
Record the game results of each player in association with the dealer,
Game results are aggregated for each combination of dealer and player, and a combination of a dealer and a player showing a game result exceeding a predetermined criterion is detected.
A fraud detection method characterized by the above.

It is a figure which shows a casino game hall typically. It is a figure which shows the structure of a game result database. It is a flowchart which shows a fraud detection method. It is an Example of a game result database. It is a detailed flowchart of the monitoring operation. It is a flowchart which shows the fraud detection method by another policy. It is a figure which shows the hardware constitutions of a computer system.

Explanation of symbols

1 Casino amusement halls 2a to 2c Game facilities 3a to 3c Dealer 4 Dealer ID card 5 Player (customer)
6 Player ID card 7 Dealer ID card reader 8a-8g Player seat 9 Player ID card reader 10 Balance calculator 11 Computer system 12 Surveillance camera 13 Display device 21 Game result database

Claims (4)

A system for detecting fraud in a casino amusement hall having a plurality of play facilities,
A recording unit for recording the game result of each player in association with the amusement facility and the dealer;
A detection unit that counts the game results for each combination of the dealer and the player, and detects a combination of the dealer and the player that indicates a game result exceeding a predetermined criterion;
A balance calculation unit for calculating the balance of each player in association with a game facility and a dealer,
In each amusement facility, a first reading unit that reads a dealer ID assigned to an ID device distributed to each dealer, and a player ID assigned to an ID device distributed to each player A second reading unit is provided for reading
The recording unit records the balance of each player calculated by the balance calculation unit as the game result,
The detection unit extracts a combination of a dealer and a player who played N (N is 3 or more) times in the same combination,
The detection unit uses a dealer ID read by the first reading unit and a player ID read by the second reading unit, and uses different games among the combinations of the extracted dealer and the player. A fraud detection system characterized by detecting a combination of a dealer and a player, each of which has a positive balance of payments at a facility. The cheating detection system according to claim 1,
The detection unit detects a combination of a dealer and a player whose balance exceeds a threshold level in a predetermined number or more of game facilities. The cheating detection system according to claim 1,
A fraud detection system, further comprising a surveillance camera that acquires an image of at least one of a combination of a dealer and a player detected by the detection unit. A first reading unit that reads a dealer ID assigned to an ID device distributed to each dealer provided in each of a plurality of play facilities in the casino amusement hall , and an ID distributed to each player A method for detecting fraud using a computer that is communicably connected to a second reading unit that reads a player ID assigned to a device ,
The computer calculates the game balance of each player in association with the game facility and dealer,
The computer uses the dealer ID and the player ID to record a game balance of each player in a recording unit in association with a play facility and a dealer,
The computer refers to the recording unit and totals the balance of the game for each combination of dealer and player,
The computer refers to the recording unit and extracts a combination of a dealer and a player who played N (N is 3 or more) times in the same combination,
Using the dealer ID and the player ID, the computer detects a combination of a dealer and a player having a positive balance of the player in different amusement facilities among the extracted dealer and player combinations. A fraud detection method characterized by the above.

Images