Inspection system

Abstract

To provide an inspection system for inspecting gaming chips for problems.SOLUTION: An inspection system 101 is provided, comprising: a placing surface having a plurality of areas for placing a plurality of gaming chips to be inspected one by one; an RFID reading system that reads RFID tags 111 of the gaming chips 110 placed in each of the plurality of areas on the placing surface to obtain the type information and identification information for each of the areas; a chip recognition system that at least recognizes the presence or absence of the gaming chips 110 placed in each of the plurality of areas of the placing surface; a control device 30 that determines a status of a gaming chip 110 in the area, in each of the areas of the placing surface, based on the type information and identification information obtained by the RFID reading system and the recognition results of the chip recognition system; and a display device 20 performing a display reflecting the status determined by the control device 30 for each area.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to an inspection system for gaming coins incorporating RFID tags.

Background Art

[0002] Conventionally, RFID-embedded gaming coins incorporating RFID tags have been known. By storing information such as the denomination information and identification information of the gaming coins in the RFID tags, it becomes possible to detect counterfeit gaming coins, manage the inventory of gaming coins, and perform patron rating, etc. Since the RFID technology can simultaneously read a plurality of RFID tags by using an RFID reader, it is advantageous in that a large number of gaming coins can be handled collectively. For example, by collectively reading the RFID tags of a plurality of gaming coins housed in a chip tray with an RFID reader, information such as the number of gaming coins and the total amount housed in the chip tray can be obtained.

[0003] On the other hand, when reading the RFID tags of a plurality of gaming coins using the RFID technology, there is a problem that counterfeit gaming coins or gaming coins with a malfunctioning RFID tag cannot be detected. For example, among a large number (e.g., 1000 pieces) of gaming coins that are difficult to count, there is one gaming coin incorporating a malfunctioning RFID tag or a gaming coin without an RFID tag mixed in. As a result, even if the RFID reader reads 999 RFID tags, unless it is known that there are 1000 such gaming coins, even if it is known that the result of reading 999 RFID tags, it is impossible to know that there is one gaming coin whose RFID tag has not been read.

[0004] Even if it is found that among a plurality of gaming tokens, there are counterfeit gaming tokens or gaming tokens with malfunctioning RFID tags mixed in, it is not easy to identify which specific gaming token among the plurality of gaming tokens has such a problem. For example, even if it is known that there is one problematic gaming token among 1000 gaming tokens, in order to find that one problematic gaming token, it is necessary to conduct inspections one by one, which requires labor and time.

[0005] Furthermore, there may be fraud such as altering the appearance of a gaming token to that of a higher-value gaming token without forging the RFID tag, or removing the RFID tag from one gaming token and replacing it with the RFID tag of another gaming token, or manufacturing counterfeit gaming tokens using the RFID tag extracted from a genuine gaming token. In such fraud, since there is no problem with the information stored in the RFID tag, simply reading the RFID tag cannot recognize such a gaming token as a problematic (altered in appearance) gaming token.

Summary of the Invention

[0006] The present invention provides an inspection system for inspecting whether there is a problem with gaming tokens in view of the above problems.

[0007] An inspection system according to one aspect of the present invention is an inspection system for inspecting gaming currency with a built-in RFID tag storing type information and / or identification information, and having the type information and / or identification information expressed on the surface, comprising: a placement surface having a plurality of areas for placing a plurality of gaming currency for inspection one by one; an RFID reading system for reading the RFID tags of the gaming currency placed in each of the plurality of areas of the placement surface, and acquiring the type information and / or identification information for each area; a chip recognition system for recognizing at least the presence or absence of the gaming currency placed in each of the plurality of areas of the placement surface; a control device for determining the state of the gaming currency in each area based on the type information and / or identification information obtained by the RFID reading system and the recognition result of the chip recognition system for each area of the placement surface; and a display device for displaying, for each area, a display reflecting the state determined by the control device. The states determined by the control device include at least (1) the gaming currency in the area is normal, (2) the gaming currency in the area has a broken RFID tag or no RFID tag built in, and (3) there is no gaming currency in the area, The control device determines that the gaming currency in the area where the gaming currency is recognized by the sensor but the RFID tag cannot be read normally by the RFID reading system is in the state where (2) the RFID tag of the gaming currency in the area is broken or no RFID tag is built in, and determines that the area where the gaming currency is not recognized by the recognition system is in the state where (3) there is no gaming currency in the area.

[0008] The above inspection system may further include a storage device storing at least the identification information of the plurality of gaming currency, and the control device may determine that the gaming currency for which the identification information read by the RFID reading system is not stored in the storage device is in an abnormal (counterfeited) state.

[0009] In the above inspection system, a plurality of arrangement areas in which the plurality of areas are arranged side by side in the row direction may be provided side by side in the column direction. The control device may determine that a gaming currency for which the identification information read by the RFID reading system is different from the type information of the gaming currencies on both adjacent sides in the row direction is in an abnormal (counterfeited) state.

[0010] In the above inspection system, a plurality of arrangement areas in which the plurality of areas are arranged side by side in the column direction may be provided side by side in the row direction. The control device may determine that a gaming currency for which the identification information read by the RFID reading system is different from the type information of the gaming currencies on both adjacent sides in the column direction is in an abnormal (counterfeited) state.

[0011] In the above inspection system, a plurality of arrangement areas in which the plurality of areas are arranged side by side in the row direction may be provided side by side in the column direction. The control device may determine that a gaming currency for which the identification information read by the RFID reading system has no predetermined relationship with the type information of other gaming currencies adjacent in the column direction is in an abnormal (counterfeited) state.

[0012] In the above inspection system, a plurality of arrangement areas in which the plurality of areas are arranged side by side in the column direction may be provided side by side in the row direction. The control device may determine that a gaming currency for which the identification information read by the RFID reading system has no predetermined relationship with the type information of other gaming currencies adjacent in the row direction is in an abnormal (counterfeited) state.

[0013] In the above inspection system, the type of gaming currency to be placed may be defined for each of the plurality of arrangement areas. The control device may determine that a gaming currency is in an abnormal (counterfeited) state when the type information read by the RFID reading system does not correspond to the type defined for the arrangement area for each of the plurality of arrangement areas.

[0014] In the above inspection system, the control device may determine that the reading of the RFID tag is in an unstable state for the gaming currency in the area where the reading of the RFID tag is unstable.

[0015] In the above inspection system, the RFID reading system may be capable of changing the radio wave or magnetic field strength for reading the RFID tag for each area, and the control device can read when the strength of the radio wave or magnetic field is increased and cannot read when the strength of the radio wave or magnetic field is decreased. For the gaming currency in the area, the control device may determine that the reading of the RFID tag is in an unstable state.

[0016] In the above inspection system, the chip recognition system may use optical means to further recognize at least the types of the gaming currency placed in each of a plurality of areas on the placement surface, and the control device may determine that the gaming currency for which the type information read by the RFID reading system does not match the type determined by the chip recognition system is in an abnormal (counterfeited) state.

[0017] In the above inspection system, the chip recognition system may be an image recognition system including a camera that captures the gaming currency placed on the placement surface to generate a captured image, and a recognition device that recognizes the type of the gaming currency for each area by analyzing the captured image.

[0018] The above inspection system may further include a storage device that stores at least the type information and the identification information of a plurality of the gaming currency in association with each other, and the control device may determine that the gaming currency for which the type recognized by the chip recognition system does not match the type information associated with the identification information read by the RFID reading system in the storage device is in an abnormal (counterfeited) state.

[0019] In the above inspection system, the control device may determine that the gaming currency for which the type recognized by the chip recognition system does not match the type information read by the RFID reading system is in an abnormal (counterfeited) state.

[0020] The above inspection system may further include a database that stores in association at least the identification information of a plurality of the gaming currency and the activation information of the gaming currency. The control device may determine that the gaming currency in an area where the activation information associated with the identification information read by the RFID reading system in the database is invalid is in an invalid state.

[0021] In the above inspection system, the gaming currency may store the identification information in the RFID tag and may further have the identification information by means other than the RFID tag. The storage device may further store the reading history in the RFID reading system. When the control device determines that the RFID tag of the gaming currency is broken or the RFID tag is not built in, the reading history of the gaming currency stored in the storage device may be acquired using the identification information possessed by means other than the RFID tag.

[0022] In the above inspection system, the display device may be a plurality of lamps provided corresponding to each of the plurality of areas that represent the status in color.

[0023] In the above inspection system, the lamp may be provided in each of the plurality of areas of the placement surface.

[0024] In the above inspection system, the display device may be a display panel composed of a plurality of two-dimensionally arranged pixels.

[0025] In the above inspection system, the display panel may show at least an area indicating the content of forgery and / or the content of the failure.

[0026] In the above inspection system, the display panel may indicate at least the number of normal gaming coins.

[0027] In the above inspection system, the display panel may indicate the type information read by the RFID reading system for each of the areas.

[0028] The above inspection system may further include a plurality of placement surfaces for placing a plurality of the gaming coins, and a second RFID reading system that reads the RFID tags of the plurality of gaming coins placed on the plurality of placement surfaces respectively to obtain the type information and / or identification information.

[0029] An inspection system according to another aspect of the present invention is an inspection system for inspecting gaming coins with a built-in RFID tag storing type information and with type information expressed on the surface, and includes an arrangement area having a plurality of areas for placing a plurality of gaming coins related to the inspection one by one, an RFID reading system that reads the RFID tags of the gaming coins placed in each of the plurality of areas respectively to obtain the type information for each area, a control device that determines counterfeit gaming coins for each area of the placement surface, and a display device that displays the determination result of the control device for each area. The control device has a configuration to determine that there are counterfeit gaming coins when a plurality of types of the type information are obtained from the plurality of areas.

[0030] In the above inspection system, a plurality of the arrangement areas formed by arranging the plurality of areas in the column direction may be arranged in the row direction, or a plurality of the arrangement areas formed by arranging the plurality of areas in the row direction may be arranged in the column direction. The control device may determine whether a plurality of types of the type information are obtained from the plurality of areas for each of the plurality of arrangement areas.

[0031] In the inspection system described above, when a plurality of types of the type information are acquired from the plurality of areas, the control device may determine that the gaming currency in the area where the type information different from the large number of the type information is acquired is the illegal gaming currency.

[0032] An inspection system according to still another aspect of the present invention is an inspection system for inspecting gaming currency incorporating an RFID tag storing at least type information, including a placement surface having a plurality of areas for placing a plurality of gaming currency related to the inspection one by one, an RFID reading system for reading the RFID tags of the gaming currency placed in each of the plurality of areas of the placement surface, and a display device for displaying the type information read by the RFID reading system for each area.

Brief Description of the Drawings

[0033]

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[0034] Hereinafter, a plurality of embodiments of the present invention will be described. However, the present invention is not limited to the following embodiments, and each technical element, function, etc. of the plurality of embodiments can be arbitrarily combined. In the following, a circular chip will be taken as an example of a gaming currency for explanation. For this reason, a gaming currency is also referred to as a chip.

[0035] (First Embodiment) The inspection system of the present embodiment is a system for inspecting gaming currency received from a player at the time of exchange at a cage, table, etc., or gaming currency received by collecting it from a player who has lost the game. The inspection system of the present embodiment can also inspect the gaming currency owned by the casino in the chip tray of the cage or table at an arbitrary timing. The inspection system of the present embodiment has a mounting table on which gaming currency can be placed one by one, and a chip reader is provided on the mounting table. Also, on the mounting table, gaming currency can be placed in groups of five for each type.

[0036] FIG. 1 is a diagram showing the configuration of an inspection system according to a first embodiment of the present invention. The inspection system 101 is a system for inspecting gaming coins, and includes a mounting table 10 having a mounting surface 120, a display device 20 for displaying inspection results, a control device 30 for performing calculations for inspection, and a storage device 40 storing information on gaming coins.

[0037] The upper surface of the mounting table 10 is the mounting surface 120, and a plurality of chip placement areas for placing a plurality of gaming coins to be inspected one by one are defined on the mounting surface 120. In the example of FIG. 1, the mounting surface 120 has 25 chip placement areas arranged in 5 rows and 5 columns. One chip placement area accepts one chip. These chip placement areas may be defined by printing lines on the mounting surface 120, or adjacent chip placement areas may be partitioned by walls having a height of about several millimeters. Alternatively, each chip placement area may have a recess for receiving a gaming coin.

[0038] FIG. 2 is a diagram showing the configuration of a gaming coin and a database. On the gaming coin 110, numbers indicating its type (denomination) are marked on the front and back surfaces. Identification information (for example, an identification number) unique to the gaming coin 110 is further marked on the front and back surfaces of the gaming coin. This identification information may be printed with ink that cannot be observed under natural light, such as ultraviolet-responsive ink or infrared-absorbing ink. In this case, the identification information may be visualized by irradiating the gaming coin with ultraviolet light or infrared light using an ultraviolet light or an infrared light.

[0039] The gaming coin 110 incorporates an RFID tag 111. The RFID tag 111 stores information on the type (denomination) and identification information of the gaming coin. The RFID tag 111 may further store other information such as information on the casino to be used, manufacturing information, and owner history information.

[0040] In the memory device 40, information such as type (denomination) information, identification information, activation status, and reading history is stored for each gaming currency. The activation status is made valid in the memory device 40 when the gaming currency is brought into the casino and made available for use in the casino, and is made invalid (deactivated) in the memory device 40 when it becomes unusable in the casino due to a malfunction, deterioration, suspicion of fraud, being stolen, etc. As the reading history, the installation locations of the RFID readers at which the chip was read are stored in chronological order. That is, the reading history is the movement history of the gaming currency within the casino and is information associating the player or dealer with the gaming currency.

[0041] The memory device 40 is updated periodically. When the memory device 40 or the inspection system 101 including it is connected to a communication network, update data may be sent to each memory device 40 via the communication network.

[0042] Returning to FIG. 1, on the mounting table 10, an object detection sensor 11 for detecting the presence or absence of the gaming currency placed thereon is installed in each of a plurality of chip placement areas on the mounting surface 120. Each object detection sensor 11 consists of a combination of a laser irradiator and a laser receiver. It outputs an ON signal when an object (gaming currency) exists in the chip placement area.

[0043] Also, in each of a plurality of chip placement areas on the mounting surface 120 of the mounting table 10, an RFID reading system is provided that reads the RFID tag 111 of the gaming currency 110 placed there and acquires type information and identification information for each chip placement area. The RFID reading system includes an antenna for reading information from the RFID tag and an RFID reader for controlling the antenna.

[0044] Figure 3 is a diagram showing an example of an antenna provided on the mounting table of the present embodiment and the intensity distribution of its radio wave or magnetic field. In this example, a reading antenna 121 and a jamming antenna 12 are provided for each chip placement area. The reading antenna 121 generates a radio wave or a magnetic field to supply power to the RFID tag 111 and reads information from the RFID tag 111.

[0045] The jamming antenna 12 is induced by the radio wave or magnetic field from the reading antenna 121 in the surrounding chip placement area to generate a radio wave or magnetic field, and shapes the radio wave or magnetic field of the reading antenna 121 in the surrounding chip placement area. By the action of this jamming antenna 12, as shown in the lower part of FIG. 3, the radio wave or magnetic field formed by the reading antenna 121 in each chip placement area has a predetermined intensity only within the chip placement area and becomes weak outside the chip placement area. Therefore, the reading antenna 121 is prevented from reading the RFID tag 111 of the game currency 110 outside the chip placement area.

[0046] With such a combination of the reading antenna 121 and the jamming antenna 12, the game currency 110 placed in each chip placement area cannot be read by the reading antenna 121 wired to other chip placement areas, and as a whole, it becomes possible to distinguish the RFID tags 111 for each chip placement area.

[0047] The positive and negative electrodes of the reading antenna 121 are connected to the RFID reader, and current flows from the RFID reader. The jamming antenna 12 includes a switch 123. When the switch 123 is closed, a closed loop is formed, and when the switch 123 is opened, the closed loop is opened. The RFID reader controls the opening and closing of the switch of each jamming antenna 12.

[0048] The RFID reader reads RFID tags in a time-division manner for a plurality of chip placement areas by sequentially activating one by one the reading antennas 121 of each chip placement area. The RFID reader closes the switch of the jamming antenna 12 of the chip placement areas around the chip placement area where the reading is performed in synchronization with the switching of the chip placement area where the reading is performed, and turns on the jamming effect. Thereby, it is possible to prevent the reading antenna 121 of the chip placement area where the reading is performed from reading the RFID tags of the surrounding chip placement areas.

[0049] FIG. 4 is a diagram showing another example of the antenna provided on the mounting table of the present embodiment. In this example, elongated reading antennas 124 and 125 are provided in each row and each column of the chip placement areas arranged in a two-dimensional matrix. Although not shown, similar to FIG. 3, jamming antennas may be provided corresponding to each of the reading antennas 124 and 125.

[0050] In this example, the number of the reading antennas 124 and 125 can be reduced as compared with the case where the reading antenna 121 is arranged for each chip placement area as in the example of FIG. 3. The RFID reader reads the RFID tags of the row or column by sequentially using the plurality of reading antennas 124 and 125.

[0051] For example, the RFID tag 111 of the game currency 110 in the first row of the chip placement area of the mounting table 10 can be read by the reading antenna 124 in the first row. Also, the RFID tag 111 of the game currency 110 in the first column of the chip placement area of the mounting table 10 can be read by the reading antenna 125 in the first column. The RFID tag that is read in the first row and also read in the first column is the RFID tag 111 of the game currency 110 arranged in the chip placement area of the first row and first column of the chip placement areas arranged in a two-dimensional matrix.

[0052] In this way, the RFID reader reads multiple rows one by one and multiple columns one by one, and by referring to the read data, it can identify the RFID tag 111 of the gaming currency 110 placed in each chip placement area.

[0053] Returning to FIG. 1, the control device 30 determines the state of the gaming currency 110 based on the type information obtained by the RFID reading system and the outputs of the plurality of object detection sensors 11 for each chip placement area. For this purpose, the control device 30 acquires the reading result for each chip placement area from the RFID reading system and acquires the detection result from each of the plurality of object detection sensors 11. As a result, the control device 30 obtains the information stored in the RFID tag 111 and the information on the presence or absence of the gaming currency for each chip placement area.

[0054] FIG. 5 is a table showing an example of the types of states of the gaming currency determined by the control device. The states determined by the control device 30 can be roughly classified into five types: normal, caution, counterfeit, failure, and no chip.

[0055] First, for the gaming currency 110 in the chip placement area where the gaming currency is detected by the object detection sensor 11 but the RFID tag 111 cannot be normally read by the RFID reading system, the control device 30 determines that the RFID tag 111 is broken or the RFID tag 111 is not built in.

[0056] More specifically, first, when the gaming currency is not detected by the object detection sensor, the control device 30 determines that there is no chip in the chip placement area.

[0057] In addition, when the control device 30 can read some information from the RFID tag 111 but cannot decrypt the information (for example, when the identification information can be obtained but other information cannot be obtained), it is determined that the data stored in the RFID tag 111 is damaged. When no information can be read from the RFID 111, it is determined that the RFID tag 111 is completely malfunctioning or the RFID tag 111 is not built in.

[0058] In addition, when the identification information read by the RFID reading system is not stored in the storage device 40, the control device 30 determines that the gaming currency is in a forged state. In this case, it is suspected that the RFID tag 111 built into the gaming currency 110 may not be a legitimate one.

[0059] The control device 30 determines that the gaming currency with the identification information read by the RFID reading system being different from the type information of the gaming currencies adjacent to both sides in the column direction is in a forged state. For the gaming currencies at both ends of each column, since there are no adjacent gaming currencies on both sides, the control device 30 determines that when the identification information read by the RFID reading system is different from the identification information of the adjacent gaming currency in the column direction and the identification information of the adjacent gaming currency is the same as the identification information of the further adjacent gaming currency, the gaming currency at the end is in a forged state.

[0060] In addition, the control device 30 determines that the gaming currency 110 with the identification information read by the RFID reading system not having a predetermined relationship (for example, when comparing a certain row with the row above it, whether the amounts in the upper and lower rows are the same or the amount in the lower row is larger than the amount in the upper row) with the type information of other adjacent gaming currencies 110 in the column direction is in a forged state.

[0061] In this embodiment, when placing gaming currency in each chip placement area of the mounting table 10, there is a rule that the types in the same row are the same, and the gaming currency with a smaller amount is placed in the upper row. Therefore, as described above, when the types of adjacent gaming currency in the same row are different, and when the amount of the gaming currency in the lower row is smaller than the amount of the gaming currency in the upper row, or when the amount of the gaming currency in the upper row is larger than the amount of the gaming currency in the lower row, although the RFID tag 111 built into the gaming currency 110 is a legitimate one, it is suspected that the appearance of the legitimate gaming currency 110 has been altered, or that the RFID tag 111 of the legitimate gaming currency 110 has been transplanted to another legitimate gaming currency 110.

[0062] For the gaming currency 110 in the chip placement area where the reading of the RFID tag 111 is unstable, the control device 30 determines that the state of reading the RFID tag 111 is unstable. To make this determination, the RFID reading system can change the intensity of the radio wave or magnetic field for reading the RFID tag 111 for each chip placement area. The control device 30 determines that the state of reading the RFID tag 111 is unstable for the gaming currency in the chip placement area where it can be read when the intensity of the radio wave or magnetic field is increased and cannot be read when the intensity of the radio wave or magnetic field is decreased.

[0063] Information on unstable, faulty, suspicious chips, and non - normal gaming currency is stored and shared in a database. For example, if it is determined that a chip has unstable reading in a chip tray (a location other than the mounting table 10), it is stored in the database, and when it is read on the mounting table 10, it can be awaited as a chip with unstable reading based on the information in the database. If information on unstable, faulty, suspicious chips, and non - normal chips is put into a blacklist in the database, an alert can be issued when it is read and matches the information in the blacklist.

[0064] The control device 30 determines, in the storage device 40, that the gaming currency in the chip placement area where the activation status associated with the identification information read by the RFID reading system is invalid is in an invalid state.

[0065] The control device 30 determines that the gaming currency in a state without any defined problems is in a normal state.

[0066] Returning to FIG. 1, the display device 20 is composed of a display panel having pixels arranged in a matrix. On the display screen, an area-by-area display area 21 showing the result of the status determination for each chip placement area and a total display area 22 showing the total value of the determination results are displayed.

[0067] FIG. 6 is a diagram showing a usage example of the inspection system 101 according to the first embodiment of the present invention. In this example, 5 ten-dollar chips are placed in the first row, 3 fifty-dollar chips are placed flush left in the second row, 4 one-hundred-dollar chips are placed flush left in the third row, 3 one-thousand-dollar chips are placed flush left in the fourth row, and 5 one-thousand-dollar chips are placed flush left in the fifth row.

[0068] As shown in FIG. 6, in the present embodiment, when placing one gaming currency in each chip placement area of the mounting table 10, the gaming currency is placed so that the types (amounts) in the same row are the same, and the amount increases (or is equal) as going to the lower row. The person performing the inspection places the gaming currency in each chip placement area while checking the appearance of the gaming currency, that is, the amounts indicated on the front and back surfaces of the gaming currency.

[0069] In this example, the $10 chip located in area number 3 is a gaming currency without the built-in RFID tag 111. The $50 chip located in area number 6 is a gaming currency with a malfunctioning RFID tag 111. The $1000 chip in area number 17 is a gaming currency where the identification information stored in its RFID tag 111 is not stored in the storage device 40. The $1000 chip in area number 24 is a gaming currency with an RFID tag for a $10 gaming currency, but its appearance is that of a $1000 chip, and it is a gaming currency with a tampered appearance.

[0070] Regarding area number 3 and area number 6, although the gaming currency is detected by the object detection sensor 11, no information can be read by the RFID reading system. Therefore, it is determined that the RFID tag 111 is malfunctioning or the gaming currency does not contain the RFID tag 111.

[0071] In the area corresponding to the area number of the area display area 21 for each area, a display indicating such an error is shown. Specifically, the area is displayed in red, and it is also displayed in text that the RFID tag 111 is malfunctioning or the gaming currency does not contain the RFID tag 111.

[0072] Regarding area number 17, the gaming currency is detected by the object detection sensor 11, and the RFID tag 111 is read by the RFID reading system, but it is determined that the identification information is not stored in the storage device 40. In this case, a display indicating such an error is shown in the area corresponding to the area number of the area display area 21 for each area. Specifically, the area is displayed in orange, and it is also displayed in text that the RFID tag 111 or the identification information is not registered. In this case, even if the amount information of the gaming currency can be specified, the amount is not displayed.

[0073] Regarding area number 24, gaming currency has been detected by the object detection sensor 11, and the identification information read from the RFID tag 111 has been stored in the storage device 40. However, in the storage device 40, it is determined that the amount information associated with the identification information does not match the amounts of the gaming currency on both adjacent sides. Specifically, while the amounts of the gaming currency on both adjacent sides (area number 23 and area number 25) are $1000, the amount information associated with the identification information read from the RFID tag 111 of area number 24 is $10.

[0074] Such a situation can occur, for example, when the appearance of a regular $10 chip is forged to look like a $1000 chip, or when a counterfeit $1000 chip is made using the RFID tag 111 of a regular $10 chip. The dealer can visually confirm the difference between the information based on the RFID tag 111 and the appearance to check if it is a dealer's mistake, and can correct it if it is a mistake.

[0075] In this case, in the area corresponding to the area number of the area-by-area display area 21, a display indicating such an error is made. Specifically, the area is displayed in orange, and it is also displayed in characters that the gaming currency is counterfeit. In this case, the amount information associated with the identification information read from the RFID tag 111 is displayed in the area corresponding to the area number of the area-by-area display area 21.

[0076] Note that in this embodiment, by referring to the storage device 40 using the identification information read from the RFID tag 111, the amount information associated with the identification information is specified and compared with the amounts on both adjacent sides. Instead of this, or in addition to this, it may also be determined whether the amount information read from the gaming currency is different from the amounts on both adjacent sides.

[0077] The total results of reading and determination for a plurality of chip placement areas are displayed in the total display area 22. FIG. 7 is a diagram showing an example of the display of the total display area in the example of FIG. 6. In the examples of FIGS. 6 and 7, since the game currency determined to be normal in the total display area 22 is 4 pieces of $10 chips, 2 pieces of $50 chips, 4 pieces of $100 chips, and 6 pieces of $1000 chips, the subtotal amount for each denomination ($40 for $10 chips, $100 for $50 chips, $400 for $100 chips, and $6000 for $1000 chips) and the total amount of $6540 are shown.

[0078] Also, for the game currency 110 that is illegal or abnormal, the content and number of its illegality or abnormality are shown. In the examples of FIGS. 6 and 7, it is shown that the number of game currency determined to have a malfunction of the RFID tag 111 or no RFID tag 111 is 2 pieces, the number of game currency determined to be unregistered is 1 piece, and the number of game currency determined to be counterfeit is 1 piece.

[0079] FIG. 8 is a diagram showing another usage example of the inspection system 101 according to the first embodiment of the present invention. In the example of FIG. 8, only 1 piece of $100 chip is placed. In such a case, it is not possible to compare the $100 chip with the denominations of other chips in the same row. However, for area number 11, a $50 chip is placed in the row above the row (the third row) including the area (the second row), and a $1000 chip is placed in the row below the row (the third row) including the area (the fourth row).

[0080] For the area with area number 11, the control device 30 determines whether the amount of gaming currency in area number 11 is in the above-described predetermined relationship in relation to the amounts read in the upper and lower rows. In the example of FIG. 8, in area number 11, in the storage device 40, the amount associated with the identification information read by the RFID reading system is $10. In this case, in relation to the lower row (the fourth row), since the amount in this row is smaller, the predetermined relationship is satisfied. However, in relation to the upper row (the second row), since the amount in this row is smaller, the predetermined relationship is not satisfied. Therefore, the control device 30 determines that there is an abnormality in the amount of $10 specified for area number 11 and that this gaming currency is counterfeit.

[0081] FIG. 9 is a diagram showing a display example of the aggregation display area in the example of FIG. 8. In the examples of FIGS. 8 and 9, in the aggregation display area 22, the gaming currency determined to be normal is 5 $10 chips, 3 $50 chips, 0 $100 chips, and 7 $1000 chips. Therefore, the subtotal amount for each amount ($50 for $10 chips, $150 for $50 chips, $0 for $100 chips, $7000 for $1000 chips) and the total amount of $7200 are shown.

[0082] Also, for the illegal or abnormal gaming currency 110, the content and number of its illegality or abnormality are shown. In the examples of FIGS. 8 and 9, it is shown that there is 1 piece of gaming currency determined to be counterfeit.

[0083] In the above-described embodiment, a rule is set such that the same amount of gaming currency 110 is placed in each row, and the amount of gaming currency 110 placed in the upper row is smaller. The dealer visually places the gaming currency 110 one by one in the chip placement area so as to follow this rule. Instead of this, a rule may be set such that the same amount of gaming currency 110 is placed in each row, and the amount of gaming currency 110 placed in the upper row is larger. A rule may also be set such that the same amount of gaming currency 110 is placed in each column, and the amount of gaming currency 110 placed in the left column is smaller. Alternatively, a rule may be set such that the same amount of gaming currency 110 is placed in each column, and the amount of gaming currency 110 placed in the right column is smaller.

[0084] Also, in the above-described embodiment, a rule is set such that the same amount of gaming currency 110 is placed in each row, and the amount of gaming currency 110 placed in the upper row is smaller. The control device 30 determines that the gaming currency 110 with an amount different from that of its two adjacent ones is a forgery. Instead of this, when a plurality of amounts of gaming currency 110 are included in the same row, the amount of the majority may be regarded as correct, and the amount of the minority may be determined as a forgery.

[0085] In this case, the control device 30 first determines whether a plurality of amounts of gaming currency 110 are included in the same row. Then, when there are a plurality of amounts of gaming currency 110, it determines which amount is larger and which amount is smaller, thereby determining which amount of gaming currency 110 is a forgery. Also, even when a rule is set such that the same amount of gaming currency 110 is placed throughout the placement table 10, when a plurality of amounts of gaming currency 110 are included, the amount of the majority may be regarded as correct, and the amount of the minority may be determined as a forgery.

[0086] Furthermore, a rule may be set such that the same amount of gaming currency 110 is placed in the same row, and the magnitude relationship of the gaming currency 110 placed in each row is arbitrary. In this case, the control device 30 may use the amount of the gaming currency 110 in the leftmost column (column 1) of each row as a reference, and determine whether the amount of the gaming currency 110 in the second and subsequent columns in each row is the same as the amount of the gaming currency 100 in column 1.

[0087] FIG. 10 is a diagram showing an inspection system according to a modified example of the first embodiment of the present invention. In this example, for each of a plurality of chip placement areas on the placement table 10, the amount of chips to be placed there is assigned in advance. In each chip placement area on the placement surface 120 of the placement table 10, a number indicating the amount of gaming currency to be placed there is printed. A dealer or other casino staff places gaming currency one by one in each chip placement area according to this number.

[0088] When the control device 30 determines in the storage device 40 that the amount information associated with the identification information read from each chip placement area is different from the amount assigned to the chip placement area, the control device 30 determines that the gaming currency in the chip placement area is counterfeit.

[0089] FIG. 11 is a diagram showing an example of use of the inspection system according to a modified example of the first embodiment of the present invention. In this example, the amount assigned to area number 24 is $1000, but in the storage device 40, an amount of $10 is associated with the identification information read by the RFID reading system. That is, since the amount specified based on the RFID tag 111 is different from the amount assigned to the chip placement area, the control device 30 determines that this gaming currency is counterfeit.

[0090] Since the appearance of the gaming currency 110 is $1000, a dealer or other casino staff places this gaming currency 110 in the chip placement area of area number 24. Therefore, this gaming currency 110 is determined to be counterfeit because the amount specified from the appearance does not match the amount specified from the RFID tag 111.

[0091] As described above, according to the inspection system of the first embodiment of the present invention and its modification, a plurality of chip placement areas are provided on the placement table 10, and gaming currency is placed one by one in each chip placement area for inspection. In each chip placement area, a reading antenna 121 for reading the RFID tag 111 and a material inspection sensor 11 are provided. The reading antenna 121 reads the RFID tag 111 of the gaming currency 110 in each chip placement area, and the material inspection sensor 11 detects the presence or absence of the gaming currency 110 in each chip placement area.

[0092] With this configuration, for a chip placement area where the material inspection sensor 11 has detected (the gaming currency is placed), but the RFID tag 111 cannot be read, it can be determined that the RFID tag 111 of the gaming currency has failed, or that the gaming currency does not have an RFID tag 111 built in.

[0093] Also, in the first embodiment, a storage device 40 that stores the identification information of the gaming currency used in the casino is provided, and the control device 30 determines whether the identification information read from each chip placement area by the RFID reading system is stored in the storage device 40. If the read identification information is not stored in the control device 30, the control device 30 determines that the gaming currency 110 is unregistered.

[0094] Furthermore, in the first embodiment, a predetermined rule is provided for the arrangement of the amounts of the gaming currency on the placement surface 120. The dealer or casino staff recognizes the amount from the appearance of the gaming currency and places the gaming currency based on the rule, or the amount of the gaming currency to be placed in each chip placement area is assigned in advance. The dealer or casino staff recognizes the amount from the appearance of the gaming currency and places the gaming currency corresponding to the assigned amount in each chip placement area.

[0095] By referring to the storage device 40, the control device 30 identifies the amount associated with the identification information read by the RFID reading system, and determines whether the identified amount corresponds to the above rules or the assigned amount. Thereby, it can be determined that game currency with a different amount indicated by the appearance and the amount specified by the RFID tag 111 is a forgery.

[0096] In the above embodiment, the RFID reading system reads the identification information from the RFID tag 111 of the game currency 110, and the control device 30 refers to the storage device 40 to identify the amount associated with the identification information, thereby identifying the amount based on the RFID tag 111 of the game currency 110. In addition to this, or instead of this, the RFID reading system may read the amount information from the RFID tag 111, and the control device 30 may identify the amount of the game currency 110 based on the amount information read by the RFID reading system. In this case, the storage device 40 may be omitted. Alternatively, when identifying the amount of the game currency 110 based on the amount stored in the storage device 40, the amount information stored in the RFID tag 111 may be omitted.

[0097] Further, the control device 30 may determine whether the amount information stored in the RFID tag 111 corresponds to (indicates the same amount as) the amount information associated with the identification information read from the RFID tag 111 in the storage device 40, and determine whether the game currency 110 or the RFID tag 111 has been forged or altered.

[0098] The determination of each state shown in FIG. 5 will be further described. The RFID reading system can change the intensity of the radio wave or magnetic field emitted from the reading antenna 121 (hereinafter referred to as "antenna intensity"). The RFID reading system changes the antenna intensity and performs multiple readings for the game currency 110 placed in each chip placement area of the mounting table 10. For example, the RFID reading system performs readings with two levels of antenna intensity, strong and weak.

[0099] When the antenna strength is high, the control device 30 can read the RFID tag 111. However, when the antenna strength is low and the RFID tag 111 cannot be read, it is determined that the game currency 110 in the chip placement area is unstable.

[0100] Also, the storage device 40 stores the activation status as described above. When the activation status of the identification information read from the RFID tag 111 is not valid (for example, not yet activated or deactivated) in the storage device 40, the control device 30 determines that the game currency 110 is invalid.

[0101] In a casino, although monitoring for counterfeit game currency and illegal acts is carried out in each scenario, there are cases where it cannot be determined with certainty that the game currency is counterfeit but is suspected. Also, game currency involved in illegal acts should be used with caution later. Although forgery and the like of these game currencies have not been confirmed, they may be made unusable.

[0102] Regarding such suspicious game currency, the storage device 40 can store information indicating that it is unusable in association with the identification information of the game currency. When the inspection system 101 reads the identification information with the RFID reading system and the storage device 40 indicates that the identification information is unusable, the control device 30 determines that the game currency is in an unusable state.

[0103] Also, in the above-described embodiment, when no information can be read from the gaming currency 110, it is determined that the RFID tag 111 has failed or is missing. However, if some information can be read from the RFID tag 111 and it can be determined that the RFID tag 111 is present, but no valid information is stored in the RFID tag, for example, if the TID (Tag ID) area of the RFID tag 111 can be read but the data in the EPC (Electronic Product Code) area or user area is damaged, it may be determined that the RFID tag 111 has (data) failure.

[0104] (Second Embodiment) FIG. 12 is a diagram showing the configuration of the system according to the second embodiment of the present invention. This system includes a plurality of inspection systems 102 and a chip management system 200. The plurality of inspection systems 102 and the chip management system 200 are communicably connected via a communication network 300.

[0105] This chip management system 200 is installed within a casino facility. An intranet may be used as the communication network 300, or the chip management system 200 may be connected to a plurality of inspection systems 102 within the casino facility via the Internet 300. In the chip management system 200, information such as the amount, reading history, activation and deactivation information, unstable chip information, unusable information, etc. is updated in association with the identification information of each gaming currency, and these information are periodically shared with each inspection system 102 via the communication network 300. In the first embodiment, various information associated with the identification information is stored in the storage device 40, and the control device 30 of each inspection system 101 refers to the storage device 40 within the same inspection system 101 to determine whether the identification information is registered or not. However, in this embodiment, the inspection system 102 does not include the storage device 40, and the control device 30 inquires of the chip management system 200 via the communication network 300 about the identification information read from the RFID tag 111 of the gaming currency 110 by the RFID reading system, so as to determine whether the said identification information is registered or not.

[0106] Note that each inspection system 102 may include the storage device 40. In this case, in each inspection system 102, it is not necessary to connect to the chip management system 200 via the communication network 300 every time an inspection is performed, and the control device 30 can access the storage device 40 to perform the inspection. Also, in this case, the storage device 40 of each inspection system 102 is periodically updated by the chip management system 200 via the communication network 300.

[0107] FIG. 13 is a diagram showing the configuration of the inspection system 102 according to the second embodiment of the present invention. In the description of the inspection system 102 of this embodiment, elements having the same functions as those of the inspection system 101 in the first embodiment are given the same numbers and the description thereof is omitted as appropriate.

[0108] The inspection system 102 includes a mounting table 10, a display device 20, a control device 30, and an imaging device 50. Although not shown in FIG. 13, the inspection system 102 includes an RFID reading system similar to the inspection system 101. The control device 30 of the present embodiment has a communication function and communicates with the chip management system 200. In the present embodiment, the mounting table 10 is provided with a total of 16 chip placement areas arranged in 4 rows and 4 columns.

[0109] In the inspection system 102, a physical inspection sensor 11 is not provided in each chip placement area. Instead, the mounting table 10 is provided with an imaging device 50 for imaging the mounting table 10. The imaging device 50 is a camera system including an optical system such as a lens, an imaging element, an image processing device, and the like.

[0110] The imaging device 50 images the gaming tokens 110 placed in each chip placement area of the mounting table 10 from above the mounting table 10 and generates a captured image. The camera 20 generates a full-color image. Note that the imaging device 50 is not limited to one, and two or more imaging devices 50 may be provided. Further, when information such as identification information is marked on the gaming token 110 with invisible ink such as ultraviolet reaction ink or infrared absorption ink, an ultraviolet light or an infrared light for visualizing such invisible ink is provided in association with the imaging device 50.

[0111] The control device 30 has an image recognition function of recognizing the chips in each chip placement area and determining their types by performing image recognition on the captured image. That is, the control device 30 also functions as an image recognition device. For this image recognition, machine learning methods such as neural networks and SVM can be used. In these machine learnings, the gaming currency 110 is designed and learned to be recognizable at any rotation angle. Also, in image recognition, a differential image may be generated from the image of the placement surface 120 in a state where the gaming currency 110 is not placed and the image of the placement surface 120 in a state where the gaming currency 110 is placed, so as to extract and recognize the gaming currency 110. Further, using the differential image, only the presence or absence of the gaming currency 110 may be detected, and the inspection of the gaming currency 110 may be performed in the same manner as in the first embodiment.

[0112] The control device 30 may identify the amount of the gaming currency by recognizing the number indicated on the gaming currency 110 through image recognition. Alternatively, the control device 30 may extract features from the entire image of the gaming currency by self-learning without specifying features for identification and recognize its amount. In addition to the number representing the amount, the gaming currency 110 also has different colors and patterns for each amount, so these colors and patterns can also be features for discriminating the amount.

[0113] Note that as described above, when the identification information is represented on the gaming currency 110 by visible ink or invisible ink, the control device 30 also reads this identification information based on the captured image. Also in this case, recognition by a neural network such as deep learning may be performed.

[0114] The display device 20 includes a lamp section 23 for each area and a liquid crystal display section 24. In the lamp section 23 for each area, a plurality of lamps are provided in an arrangement corresponding to the chip placement areas on the placement surface 120 of the placement table 10. The lamp includes an LED light-emitting element of three primary colors and can emit an arbitrary color.

[0115] In this embodiment, the state of the gaming currency determined by the control device 30 is represented by the lighting color of the lamps in the lamp unit 23 for each area. In this embodiment, the control device 30 determines the state of each chip placement area to be one of "normal", "caution", "counterfeit", "failure", and "no chip", and lights the lamps green (normal), yellow (caution), orange (counterfeit), and red (failure) respectively. When there is no chip, the lamp is not lit.

[0116] The chip management system 200 functions as a database server that stores data similar to the data stored in the storage device 40 of the first embodiment. That is, the chip management system 200 stores identification information, denomination information, activation status, reading history, unusable flag, etc. of all the gaming currencies 110 used in the casino. Using the identification information as a key, the denomination information, activation status, etc. associated with the identification information can be specified.

[0117] When the gaming currency 110 is unstable, invalid, or unusable, the control device 30 determines that it is "caution" and lights the lamp of the area number of the gaming currency yellow. Note that the yellow blinking pattern may be changed according to the differences in instability, invalidity, and unusability. For example, instability may be a steady light, and invalidity and unusability may be blinking, and the blinking patterns may be different between invalidity and unusability.

[0118] In addition, when the reading of the RFID tag 111 of the gaming currency 110 is unstable, the control device 30 may store information to that effect in the chip management system 200 in association with the identification information. For the gaming currency for which the chip management system 200 stores unstable information in this way, when the control device 30 subsequently acquires the identification information from the RFID reading system, by querying the chip management system 200 using the identification information as a key, the control device 30 can grasp that the reading of the RFID tag 111 of the gaming currency 110 is unstable.

[0119] Further, when the amount recognized from the captured image by the image recognition function of the control device 30 does not match the amount obtained by referring to the chip management system 200 using the identification information read from the RFID tag 111 by the RFID reading system, the control device 30 determines that the appearance of the gaming currency has been forged. Also, when the identification information read from the RFID tag 111 by the RFID reading system is not stored in the chip management system 200, the control device 30 determines that the identification information of the RFID tag 111 of the gaming currency is unregistered.

[0120] When the control device 30 determines that the appearance has been forged or the RFID tag 111 is unregistered, it determines that the status of this gaming currency 110 is "counterfeit" and lights the lamp of the area number of the gaming currency in orange. Note that the blinking pattern of orange may be changed according to the difference between the forged appearance and the unregistered identification information. For example, the forged appearance may be lit and the unregistered RFID tag may blink.

[0121] When, as a result of performing image recognition on the captured image, no reading result of the RFID tag 111 is obtained from the RFID reading system for the chip placement area where the gaming currency is recognized, the control device 30 determines that the RFID tag 111 of the gaming currency 110 in the chip placement area has failed or that the gaming currency 110 in the chip placement area does not have the RFID tag 111, determines that the status of the gaming currency 110 is "faulty", and lights the lamp of the area number of the gaming currency 110 in red.

[0122] When, as a result of performing image recognition on the captured image, no gaming currency is recognized in the chip placement area, the control device 30 determines that there is "no chip" and does not light the lamp of the area number of the chip placement area.

[0123] As described above, the control device 30 has a lamp control function for controlling the lighting of each lamp of the per-area lamp display unit 23 according to the result of the determination.

[0124] The liquid crystal display unit 24 displays the aggregation of the results of inspections of each of the plurality of chip arrangement areas. Specifically, the liquid crystal display unit 24 displays the number of gaming coins determined to be "normal" and the total number of gaming coins determined to be "caution", "counterfeit", or "defective", that is, the number of gaming coins that are illegal or abnormal.

[0125] FIG. 14 is a diagram showing a usage example of the inspection system according to the second embodiment of the present invention. In this example, the control device 30 determines that the reading of the gaming coin 110 in area number 3 is unstable and is in a "caution" state, and lights the lamp of area number 3 of the area-by-area lamp unit 23 in yellow.

[0126] In addition, for area number 8, the control device 30 recognizes that there is a $100 chip from the photographed image, and receives the result that the RFID tag 111 cannot be read from the gaming coin 110 in area number 8 from the RFID reading system. Then, the control device 30 determines that the RFID tag 111 is in a "defective" state, and lights the lamp of area number 8 of the area-by-area lamp unit 23 in red.

[0127] Also, for area number 9, the control device 30 acquires the identification information read from the RFID reading system, makes an inquiry to the chip management system 200 using this identification information as a key, and acquires information indicating an amount of $10 as the information on the amount associated with the identification information. On the other hand, for area number 9, the control device 30 recognizes from the photographed image that the gaming coin 110 is a $100 chip. Since the amount information ($10) stored in the chip management system 200 is different from the amount information ($100) recognized from the photographed image, the control device 30 determines that this gaming coin 110 is a "counterfeit" with an altered appearance, and lights the lamp of area number 9 of the area-by-area lamp unit 23 in orange.

[0128] In addition, for area number 11, the control device 30 acquires the identification information read from the RFID reading system, and makes an inquiry to the chip management system 200 using this identification information as a key. When the control device 30 receives the result from the chip management system 200 that the identification information is unregistered, it determines that this gaming currency 110 is a "forgery" using an unregistered RFID tag, and lights the lamp of area number 11 of the area-by-area lamp unit 23 in orange.

[0129] In addition, for area numbers 1, 2, 4 to 7, 10, 12 to 14, as a result of performing image recognition on the captured image, the gaming currency 110 is recognized and there are no problems as described above. Therefore, these gaming currencies 110 are determined to be "normal", and the lamps of area numbers 1, 2, 4 to 6, 10, 12 to 14 of the area-by-area lamp unit 23 are lit in green. For area numbers 15 and 16, as a result of performing image recognition on the captured image, the gaming currency 110 is not recognized. Therefore, the control device 30 does not light the lamps of area numbers 15 and 16 of the area-by-area lamp unit 23.

[0130] FIG. 15 is a diagram showing a modified example of the display of the liquid crystal display unit according to the second embodiment of the present invention. As shown in FIG. 15, the liquid crystal display unit 24 may display the number and subtotal for each denomination of the normal gaming currency 110, and the total amount of the normal gaming currency 110. For the illegal or abnormal gaming currency 110, the area number and the content of the illegality or abnormality may be displayed.

[0131] In the examples of FIGS. 14 and 15, as described above, for area number 3, it is determined to be unstable, for area number 8, it is determined that there is an RFID failure or no RFID, for area number 9, it is determined that the appearance has been tampered with, and for area number 11, it is determined that the RFID tag 111 is unregistered. Therefore, the respective contents are displayed on the liquid crystal display unit 24.

[0132] As described above, according to the inspection system 102 of the present embodiment, the imaging device 50 captures an image of the gaming currency 110 placed on the mounting table 10, and recognizes the denomination of the gaming currency from its appearance. Therefore, unlike the inspection system 101 of the first embodiment, there is no need to arrange the gaming currency 110 according to a predetermined rule or the denomination previously assigned to the mounting table 10, and gaming currency 110 of any denomination can be placed in a plurality of chip placement areas.

[0133] In the present embodiment, the control device 30 may make a determination using the identification information marked on the surface of the gaming currency 110. For example, the control device 30 may read the identification information marked on the surface of the gaming currency 110 from the captured image and inquire of the chip management system 200. In this case, the RFID reading system may be omitted.

[0134] Alternatively, the identification information recognized from the captured image and the identification information recognized by the RFID reading system may be compared to determine the gaming currency. If the two are different, the control device 30 determines that either the appearance of the gaming currency 110 has been tampered with or an unregistered RFID tag 111 is being used.

[0135] In addition, when there are no problems in the inspection system 102 prepared by the control device 30, the control device 30 determines that the gaming currency is normal.

[0136] In the present embodiment, the gaming currency 110 stores identification information in the RFID tag 111 and also has additional identification information by means other than the RFID tag, that is, by printing with ink. In addition, the chip management system 200 stores the reading history in the RFID reading system of each inspection system 102. That is, the chip management system 200 stores which identification information was read by which inspection system 102 at what time.

[0137] According to such a configuration, when the control device 30 determines that the RFID tag of the gaming currency is broken or the RFID tag is not built in, the identification information possessed by means other than the RFID tag can be used to obtain the reading history of the gaming currency stored in the chip management system 200. Thereby, it is possible to track how far the RFID tag 111 has been correctly read, which can also lead to the discovery of fraud.

[0138] If the RFID is malfunctioning or there is no RFID tag, the identification information to be deactivated is unknown, so the identification information possessed by means other than the RFID tag can be found and the identification information can be deactivated. For gaming currency from which a normal RFID tag 111 has been removed and which does not have the RFID tag 111, since there is a risk that another gaming currency may be counterfeited using the removed RFID tag 111, the identification information specified by means other than the RFID tag is deactivated.

[0139] (Third Embodiment) FIG. 16 is a diagram showing the configuration of the inspection system according to the third embodiment of the present invention. The inspection system 101 of the above-described first embodiment is a stand-alone type that can be used even when the mounting table 10, the display device 20, the control device 30, and the storage device 40 are integrated and not connected to the communication network.

[0140] Further, the inspection system 102 of the second embodiment is a network type in which a chip management system 200 corresponding to the storage device 40 is connected to a plurality of inspection systems 102 via a communication network. The inspection system 103 of the present embodiment is configured such that the mounting table 10, the display device 20, the control device 30, and the chip management system 200 corresponding to the storage device 40 are each separate devices.

[0141] Also, in the example of FIG. 16, for the gaming currency 110 with area number 7, the appearance is a $50 chip, but the amount based on the reading of the RFID tag 111 by the RFID reading system is $100. In this case, the display device 20 displays that for area number 7, both $50 and $100 have been recognized.

[0142] Also, for area number 8, the gaming currency 110 does not have an RFID tag 111, and the amount cannot be specified based on the RFID tag 111. However, the imaging device 50 recognizes it as $100 based on the appearance. Therefore, the display device 20 displays that the reading of the RFID tag 11 was not possible and that the appearance is $100. That is, in the present embodiment, the content recognized via the imaging device and the content recognized via the RFID reading system are displayed as they are.

[0143] Also, in the present embodiment, a personal computer can be used as the control device 30, and a PC monitor can be used as the display device 20.

[0144] FIG. 17 is a diagram showing a modified example of the inspection system according to the third embodiment of the present invention. In this example, the inspection system 103 includes a mounting table 10 incorporating an RFID reading system, a tablet computer 600, and a chip management system 200. That is, compared with the above-described third embodiment, the display device 20, the control device 30, and the imaging device 50 are realized by a single device, namely, the tablet computer.

[0145] The tablet computer 600 and the mounting table 10 (its RFID reading system) communicate with each other by wire or short-range wireless communication. Also, the tablet computer 600 is connected to the communication network 300 by a wireless router and communicates with the chip management system 200.

[0146] In the case of this example, all functions such as image recognition, determination, and display of the control device 30 may be provided to the tablet computer 600 as one packaged application.

[0147] (Fourth Embodiment) FIG. 18 is a diagram showing the configuration of the inspection system according to the fourth embodiment of the present invention. In the inspection system 104 of the present embodiment, the placement surface 120 is installed at a position close to the dealer position on the table surface of the game table 500. A 4-row and 5-column chip placement area is partitioned by lines on the placement surface 120. Further, a display device 20 is embedded in the table surface in the vicinity of the placement surface 120, and a control device 30 is provided inside the game table 500.

[0148] Each control device 30 of the plurality of game tables 500 is communicably connected to the chip management system 200 via a communication network 300. The RFID reading system reads the RFID tag 111 of the gaming currency 110 placed in each chip placement area of the placement surface 120. Note that a camera may be provided on the ceiling to recognize the gaming currency with that camera.

[0149] Using the identification information read by the RFID reading system from the RFID tag 111 as a key, the control device 30 makes an inquiry to the chip management system 200 to acquire the amount information associated with the identification information. Thereafter, in the same manner as in the first embodiment, it may be checked whether the specified amounts are the same for each row and whether the amounts decrease as the rows go up.

[0150] Alternatively, the control device 30 may determine whether the gaming currency 110 in each chip placement area is normal based on whether the amount information read from the RFID tag 111 of the gaming currency 110 by the RFID reading system matches the amount acquired from the chip management system 200.

[0151] In the present embodiment, the lines partitioning each chip placement area on the placement surface may emit light from below the table surface by an LED light when necessary to indicate the chip placement area.

[0152] Also, in the present embodiment, the chip tray 501 is a tray for accommodating dealer's chips, and an RFID reading system may be provided. The RFID reading system of the chip tray 501 and the RFID reading system of the inspection system 104 may cooperate with each other.

[0153] FIG. 19 is a diagram showing a modification of the inspection system according to the fourth embodiment of the present invention. In this example, five chip placement areas are provided in a row on the table surface of the game table 500. The dealer is assumed to place game coins 110 of the same amount in this row. A monitor or a lamp may be provided in this chip placement area.

[0154] The RFID reading system reads the information on the amount stored in the RFID tag 111 of the game coins 110 placed one by one in a plurality of chip placement areas. The control device 30 acquires the reading result from the RFID reading system. When there is at least one game coin 110 with a different amount among the plurality of amount information acquired from the RFID reading system, that is, when the amount information of all the game coins 110 is not the same, the control device 30 determines that there is a counterfeit game coin 110 among the plurality of game coins 110.

[0155] Also, when the RFID tag 111 has not been read for the number of chip placement areas (five in this example), the control device 30 determines that there is a game coin 110 in which the RFID tag 111 has failed or a game coin 110 that does not have the RFID tag 111 among the plurality of game coins 110.

[0156] In the inspection system 104 of this example, the display device 20 includes three lamps. Each lamp is controlled to be turned on and off by the control device 30. When the five gaming coins 110 are normal, the control device 30 turns on the green normal lamp. When it is determined that there is a counterfeit gaming coin 110, the control device 30 turns on the orange counterfeit lamp. When it is determined that the RFID tag 111 has failed or there is a gaming coin 110 without the RFID tag 111, the control device 30 turns on the red failure lamp.

[0157] According to this example, the area of the inspection system 104 on the table surface of the game table 500 can be kept small, and the influence on other operations by the dealer can be reduced.

[0158] (Fifth Embodiment) FIG. 20 is a diagram showing the configuration of the inspection system according to the fifth embodiment of the present invention. As shown in FIG. 20, in the inspection system 105 of the present embodiment, a display device 20 indicating the determination result is provided in each chip placement area of the mounting table 10. In the present embodiment, the display device 20 provided in each chip placement area is a lamp that represents the content of the determination by its color. In addition to or instead of this, a liquid crystal display panel for each chip placement area may be provided.

[0159] The inspection system 105 inspects the gaming coins 110 in the same manner as the inspection system 101 of the first embodiment, and represents the determination result of the gaming coins in each chip placement area by the color of the lamp in the corresponding chip placement area.

[0160] (Sixth Embodiment) FIG. 21 is a diagram showing the configuration of the inspection system according to the sixth embodiment of the present invention. As shown in FIG. 21, the inspection system 106 of the present embodiment has a plurality of chip placement areas 16 provided on the mounting table 10 as compared with the inspection system 101 of the first embodiment.

[0161] In this plurality of chip placement areas 16, a reading antenna (not shown) for reading the RFID tags 111 of a plurality of gaming tokens 110 placed in the plurality of chip placement areas 16 is provided. Similar to the first embodiment, a jamming antenna may be provided corresponding to this reading antenna, or a shield may be provided so that this reading antenna does not read the RFID tags 111 of the gaming tokens 110 placed in a plurality of adjacent chip placement areas.

[0162] When a dealer or other casino staff uses the inspection system 106 of this embodiment, first, before placing the gaming tokens 110 one by one in the chip placement area, a plurality (for example, 5 tokens in a row) of gaming tokens 110 to be placed in the chip placement area are stacked in the plurality of chip placement areas 16.

[0163] The reading antenna in the plurality of chip placement areas 16 collectively reads the RFID tags 111 of the plurality of gaming tokens 110 placed in the plurality of chip placement areas 16, and displays the result on the plurality of reading result display units 25.

[0164] FIG. 22 is a diagram showing an example of use of the inspection system according to the sixth embodiment of the present invention. In this example, 5 one-hundred-dollar chips are placed in the plurality of chip placement areas 16. The plurality of reading result display units 25 display the results read by the RFID reading system in the plurality of chip placement areas 16.

[0165] A dealer or other casino staff (hereinafter simply referred to as "dealer") thus takes out 5 gaming tokens 110 and places them in the plurality of chip placement areas 16. At this time, the dealer visually confirms the amounts of the 5 gaming tokens 110. Typically, 5 gaming tokens 110 of the same amount are placed in the plurality of chip placement areas 16.

[0166] The content read by the RFID reading system in the plurality of chip placement areas 16 is displayed on the plurality of reading result display units 25, and the dealer checks this. If this result is different from the content visually confirmed, the dealer places five gaming coins 110 one by one in the chip placement area for further inspection.

[0167] Since it takes time to place one gaming coin at a time, multiple gaming coins can be placed together. If the dealer can confirm that all the gaming coins are normal by checking the plurality of reading result display units 25 where the information is displayed, the inspection can be terminated there. By doing so, the time required for the inspection can be shortened. If a non-normal gaming coin is confirmed after placing multiple gaming coins, the gaming coins can be placed one by one in the chip placement area to identify the non-normal gaming coin.

[0168] In this embodiment, the amount of the gaming coins 110 placed in the plurality of chip placement areas 16 is specified. Alternatively, only the number of coins may be specified. In this case, the dealer visually checks a predetermined number and in the plurality of chip placement areas 16, the plurality of reading result display units 25 display the number of RFID tags 111 read as the reading result.

[0169] With such a configuration, first, it is possible to inspect whether there is a malfunctioning RFID tag 111 or a gaming coin 110 without an RFID tag 111 among the plurality of gaming coins 110. If there is a malfunctioning RFID tag 111 or a gaming coin 110 without an RFID tag 111, the number of gaming coins 110 placed in the plurality of chip placement areas 16 will be different from the number displayed on the plurality of reading result display units 25.

[0170] However, at this stage, it is unknown which of the plurality of gaming coins 110 has a problem. Therefore, these plurality of gaming coins are placed one by one in adjacent plurality of chip placement areas for inspection one by one.

[0171] Incidentally, the multi-chip placement area 16 may be designed to be wide enough to accommodate, for example, five chip cases each containing 20 chips. In this case, five chip cases each containing 20 chips (a total of 100 chips) are placed in the multi-chip placement area 16, and the result is displayed on the plurality of reading result display units 25. The person conducting the inspection places a plurality of chip cases each containing 20 chips in the multi-chip placement area 16, and if the reading result matches the gaming currency that can be visually confirmed (for example, 100 chips of $100, 20 chips per case for 5 cases, a total of 100 chips), the inspection is completed there. If they do not match, the chip cases may be placed one by one in the multi-chip placement area 16 for inspection. And if a problematic chip case can be identified, the chip case may be opened to take out the gaming currency 110, and the inspection may be carried out by placing them one by one in the chip placement area of the mounting table 10.

[0172] Alternatively, the control device 30 may determine whether there are a predetermined number (for example, 100) of gaming currencies 110 of the same amount in the multi-chip placement area 16, and display only the determination result of whether it is successful or not on the plurality of reading result display units 25. Further, the control device may determine only whether the amounts of the plurality of gaming currencies 110 read in the multi-chip placement area 16 are all the same, and display the determination result of whether it is successful or not on the plurality of reading result display units 25. Incidentally, the multi-chip placement area 16 and the plurality of reading result display units 25 may be configured separately from the mounting table 10.

[0173] (Seventh Embodiment) FIG. 23 is a diagram showing the configuration of the inspection system according to the seventh embodiment of the present invention. The inspection system 107 of the present embodiment does not include the storage device 40 as compared with the inspection system of the first embodiment, and can be used without communicating with the chip management system 200 as in the second embodiment. Also, the control device 30 does not perform the above-described inspection or determination.

[0174] The RFID reading system of the placement table 10 reads the denomination information from the gaming currency 110 placed in each chip placement area. The control device 30 displays the denomination information read by the RFID reading system in the area-by-area display area 21. Further, the control device 30 totals the denomination information read from the RFID tags 111 of the gaming currency 110 in each chip placement area by the RFID reading system, and displays the total result in the total display area 22.

[0175] FIG. 24 is a diagram showing a usage example of the inspection system according to the seventh embodiment of the present invention. In this example, while the dealer visually confirms, 100-dollar chips are placed in all the chip placement areas. In the area-by-area display area 21, it is displayed that 100-dollar chips have been read for all the area numbers, and in the total display area 22, it is displayed that 25 100-dollar chips have been read. The dealer can confirm that there is no problem with all of these 25 gaming currency 110 by comparing the appearance of the gaming currency 110 placed on the placement table 10 with the displays in the area-by-area display area 21 and the total display area 22.

[0176] FIG. 25 is a diagram showing another usage example of the inspection system according to the seventh embodiment of the present invention. In this example, the gaming currency 110 placed in area number 14 has information of 10 dollars stored as the denomination information in the RFID tag 111, but the appearance is that of a 100-dollar chip. The dealer judges this gaming currency 110 to be a 100-dollar chip and places it in area number 14 together with other 100-dollar chips. However, in the area-by-area display area 21, although it should be displayed as the same 100 dollars for all the area numbers, only area number 14 shows 10 dollars. By confirming the display of the gaming currency 110 placed on the placement table 10 and the area-by-area display area 21, the dealer can judge that the gaming currency 110 in area number 14 is a counterfeit.

[0177] Also, the gaming currency 110 placed in area number 17 does not have an RFID tag 111 built in. Therefore, in the area-by-area display region 21, no number representing an amount is displayed for area number 17. By checking the gaming currency 110 placed on the mounting table 10 and this display in the area-by-area display region 21, the dealer can determine that the gaming currency 110 in area number 17 is faulty.

[0178] Also, in the total display region 22, although originally it should display that there are 25 one-hundred-dollar chips, since there is a counterfeit gaming currency 110 in area number 14 and a faulty gaming currency 110 in area number 17, it is shown that there are only 23 one-hundred-dollar chips, and instead there is 1 ten-dollar chip, and the total is 24. By checking the gaming currency 110 placed on the mounting table 10 and this display in the total display region 22, the dealer can determine that there is 1 counterfeit gaming currency 110 and 1 faulty gaming currency 110.

[0179] As described above, in the inspection system 107 of the present embodiment, the control device 30 does not perform inspection or determination, but the display device 20 displays information for the dealer to make a determination. In particular, if operations such as placing gaming currency 110 of the same amount in the chip placement area are carried out, it is possible to easily discover counterfeit or faulty gaming currency by checking the display device 20. For example, if different colors are assigned to the area-by-area display region 21 for each type (amount) of the recognized gaming currency 110, the presence of gaming currency 110 with an amount different from the appearance becomes obvious.

[0180] (Eighth Embodiment) FIG. 26A is a cross-sectional view of a part of the mounting table of the inspection system according to the eighth embodiment of the present invention, and FIG. 26B is a plan view of a part of the mounting table of the inspection system according to the eighth embodiment of the present invention. In the mounting table 10 of the present embodiment, stoppers 221 for placing one gaming coin 110 in each chip placement area 220 are provided in each chip placement area 220. The stoppers 221 are provided at the left end of each chip placement area 220, divided vertically. Each stopper 221 has a wall 221w that stands vertically from the mounting surface 120 at the left end of the chip placement area 220, and has a slope portion 221s that gently slopes from the wall 221w toward the center of the chip placement area 220. The height of the wall 221w is designed to be approximately the same as the thickness of the gaming coin 110, or slightly lower than the thickness of the gaming coin 110. A groove 222 without a stopper 221 is formed between the stoppers 221 adjacent to each other in the vertical direction.

[0181] FIGS. 27A and 27B are diagrams showing usage examples of the inspection system according to the eighth embodiment of the present invention. When an inspector places one gaming coin 110 in each chip placement area 220 of the mounting table 10, the inspector picks up a stack of five gaming coins 110 of the same amount with a finger, and while moving the hand from left to right in the row where the gaming coins 110 are to be placed, places one gaming coin 110 in each chip placement area 220. As shown in FIG. 27A, the lowermost gaming coin 110 among the plurality of gaming coins 110 held abuts against the wall 221w of the stopper 221 and cannot go further to the right. As shown in FIG. 27B, only the second and higher gaming coins 110 from the bottom are moved to the right by hand. Thereby, the gaming coins 100 can be smoothly placed in each chip placement area 220 of the mounting table 10 row by row.

[0182] By using such a stopper 221, it is also easy to remove the gaming currency 110 placed in each chip placement area 220 from the mounting table 10. When removing the gaming currency 110, the inspector moves the hand from right to left, one row at a time, with one finger along the groove 222. The right end portion of the gaming currency 110 is pushed by the finger and moves leftward while climbing the slope portion 221s from the left end. When the left end of the gaming currency pushed leftward climbs over the slope portion 221s, it overlaps the next gaming currency 110, and the next gaming currency 100 is pushed by the finger together with other gaming currencies and moves leftward. By repeating this, the inspector can stack and collect a plurality of gaming currencies 110 arranged side by side in one row in a stacked manner simply by moving the hand with the finger along the groove 222 to the left.

[0183] As described above, the first to eighth embodiments have been explained, but the components of each embodiment can be arbitrarily combined.

[0184] In the inspection system, basically, most of the gaming currencies are assumed to be normal. Therefore, when a non-normal gaming currency is detected, it may be notified by sound. By outputting the inspection result by sound and / or a lamp, for example, even when the lamp is broken, the inspection result can be known by sound. Also, sound can be confirmed more easily than visually checking. Conversely, it may be notified by sound when a normal gaming currency is read.

[0185] Also, when the gaming currency is not normal due to, for example, alteration of the appearance, by acquiring the reading history of the RFID tag 111 and tracking the state before the alteration of the appearance or the like, it is possible to find out where the fraud occurred.

[0186] Regarding a gaming currency with a malfunctioning RFID tag 111 or a gaming currency without an RFID tag 111, the gaming currency may be disassembled and checked.

[0187] In addition, in the above-described embodiment, the RFID antenna is set to a strength that can read only one gaming currency, so that radio waves or magnetic fields are not formed far away.

[0188] Also, for counterfeit gaming currency, no cashing is performed. However, if a gaming currency with a malfunctioning RFID tag 111, a gaming currency without an RFID tag 111, or an abnormal gaming currency is found, first, a person of higher rank (such as a manager) is called. In the case of a malfunctioning or tagless RFID tag 111, the RFID is identified from other IDs, and the identified RFID is deactivated or registered in the blacklist.

Explanation of Signs

[0189] 10 Placement table 11 Object inspection sensor 20 Display device 21 Display area for each area 22 Aggregate display area 30 Control device 40 Storage device 50 Imaging device 101~107 Inspection system 110 Gaming currency 111 RFID tag 120 Placement surface 121 Reading antenna 122 Jamming antenna 200 Chip management system 220 Chip placement area 221 Stopper 221w Wall 221s Slope part 222 Groove 300 Communication network 500 Game table 600 Tablet computer

Claims

1. An inspection system that incorporates an RFID tag storing type information and / or identification information and inspects gaming currency with type information and / or identification information expressed on its surface, comprising: A placement surface having a plurality of areas for placing a plurality of gaming currencies to be inspected one by one; An RFID reading system that reads the RFID tags of the gaming currencies placed in each of the plurality of areas of the placement surface and acquires the type information and / or identification information for each area; A chip recognition system that recognizes at least the presence or absence of the gaming currencies placed in each of the plurality of areas of the placement surface; A control device that determines the status of the gaming currency in each area based on the type information and / or identification information obtained by the RFID reading system and the recognition result of the chip recognition system for each area of the placement surface; A display device that displays a display reflecting the status determined by the control device for each area; And comprising: The status determined by the control device includes at least: (1) The gaming currency in the area is normal; (2) The gaming currency in the area has a broken RFID tag or no RFID tag is incorporated; and (3) The state that there is no gaming currency in the area, The control device: Regarding the gaming currency in the area where the gaming currency is recognized by the chip recognition system but the RFID tag cannot be read normally by the RFID reading system, it is determined that the gaming currency in the area (2) has a broken RFID tag or no RFID tag is incorporated; Regarding the area where the gaming currency is not recognized by the recognition system, it is determined that there is no gaming currency in the area (3). An inspection system.

2. Further comprising a storage device that stores the identification information of at least a plurality of the gaming currencies, The control device determines that the gaming currency for which the identification information read by the RFID reading system is not stored in the storage device is in an abnormal state. The inspection system according to claim 1.

3. A plurality of arrangement areas in which the plurality of areas are arranged side by side in the row direction are provided side by side in the column direction. The inspection system according to claim 1, wherein the control device determines that a gaming currency for which the identification information read by the RFID reading system is different from the type information of gaming currencies on both adjacent sides in the row direction is in an abnormal state.

4. A plurality of arrangement areas in which the plurality of areas are arranged side by side in the column direction are provided side by side in the row direction. The inspection system according to claim 1, wherein the control device determines that a gaming currency for which the identification information read by the RFID reading system is different from the type information of gaming currencies on both adjacent sides in the column direction is in an abnormal state.

5. A plurality of arrangement areas in which the plurality of areas are arranged side by side in the row direction are provided side by side in the column direction. The inspection system according to claim 1, wherein the control device determines that a gaming currency for which the identification information read by the RFID reading system has no predetermined relationship with the type information of other gaming currencies adjacent in the column direction is in an abnormal state.

6. A plurality of arrangement areas in which the plurality of areas are arranged side by side in the column direction are provided side by side in the row direction. The inspection system according to claim 1, wherein the control device determines that a gaming currency for which the identification information read by the RFID reading system has no predetermined relationship with the type information of other gaming currencies adjacent in the row direction is in an abnormal state.

7. The types of gaming currencies to be placed are defined in the plurality of arrangement areas. The inspection system according to claim 1, wherein the control device determines that a gaming currency is in an abnormal state when the type information read by the RFID reading system does not correspond to the type defined in the arrangement area for each of the plurality of arrangement areas.

8. The inspection system according to any one of claims 1 to 7, wherein the control device determines that the RFID tag reading is in an unstable state for the gaming currency in an area where the RFID tag reading is unstable.

9. The RFID reading system can change the radio wave or magnetic field intensity for reading the RFID tag for each area. The inspection system according to claim 8, wherein the control device determines that the RFID tag is in an unstable state for the gaming currency in an area where reading is possible when the intensity of the radio wave or magnetic field is increased, and reading is not possible when the intensity of the radio wave or magnetic field is decreased.

10. The chip recognition system further recognizes at least the types of the gaming currency placed in each of a plurality of areas of the placement surface by using optical means. The inspection system according to claim 1, wherein the control device determines that the gaming currency for which the type information read by the RFID reading system does not match the type determined by the chip recognition system is in an abnormal state.

11. The inspection system according to claim 10, wherein the chip recognition system is an image recognition system including a camera that captures the gaming currency placed on the placement surface to generate a captured image, and a recognition device that recognizes the type of the gaming currency for each area by analyzing the captured image.

12. The inspection system further includes a storage device that stores in association at least the type information and the identification information of the plurality of gaming currency. The inspection system according to claim 10 or 11, wherein the control device determines that the gaming currency for which the type recognized by the chip recognition system does not match the type information associated with the identification information read by the RFID reading system in the storage device is in an abnormal state.

13. The inspection system according to claim 10 or 11, wherein the control device determines that the gaming currency for which the type recognized by the chip recognition system does not match the type information read by the RFID reading system is in an abnormal state.

14. The inspection system further includes a database that stores in association at least the identification information of the plurality of gaming currency and the activation information of the gaming currency. The inspection system according to any one of claims 1 to 13, wherein the control device determines that the gaming currency in an area where the activation information associated with the identification information read by the RFID reading system in the database is invalid is in an invalid state.

15. The gaming currency stores the identification information in the RFID tag and further has the identification information by means other than the RFID tag. The storage device further stores the reading history in the RFID reading system. The inspection system according to any one of claims 1 to 14, wherein when the control device determines that the RFID tag of the gaming currency is broken or the RFID tag is not built in, the identification information possessed by means other than the RFID tag is used to obtain the reading history of the gaming currency stored in the storage device.

16. The inspection system according to any one of claims 1 to 15, wherein the display device is a plurality of lamps provided corresponding to each of the plurality of areas, and the status is represented by color.

17. The inspection system according to claim 16, wherein the lamp is provided in each of the plurality of areas of the placement surface.

18. The inspection system according to any one of claims 1 to 15, wherein the display device is a display panel composed of a plurality of pixels arranged in a two-dimensional array.

19. The inspection system according to claim 18, wherein the display panel indicates at least an area showing the content of forgery and / or the content of the failure.

20. The inspection system according to claim 18, wherein the display panel indicates at least the number of normal gaming currencies.

21. The inspection system according to claim 16, wherein the display panel indicates the type information read by the RFID reading system for each of the areas.

22. A plurality of placement surfaces for placing a plurality of the gaming currencies, A second RFID reading system that reads the RFID tags of the plurality of gaming currencies placed on the plurality of placement surfaces respectively to obtain the type information and / or identification information, The inspection system according to any one of claims 1 to 21, further comprising.

23. An inspection system for inspecting gaming currency that incorporates an RFID tag storing type information and has the type information expressed on the surface, A placement area having a plurality of areas for placing a plurality of gaming currencies to be inspected one by one, An RFID reading system that reads the RFID tags of the gaming currencies placed in each of the plurality of areas respectively to obtain the type information for each area, A control device that determines illegal gaming currency for each area of the placement surface, For each of the areas, a display device that displays the determination result of the control device; comprising; The control device is an inspection system that determines that there is counterfeit gaming currency when a plurality of types of the type information are acquired from the plurality of areas.

24. A plurality of the arrangement areas formed by arranging the plurality of areas in a column direction are arranged side by side in a row direction, or a plurality of the arrangement areas formed by arranging the plurality of areas in a row direction are arranged side by side in a column direction, The control device determines, for each of the plurality of arrangement areas, whether a plurality of types of the type information are acquired from the plurality of areas. The inspection system according to claim 23.

25. The control device determines that the gaming currency in the area where type information different from a large number of the type information is acquired is counterfeit gaming currency when a plurality of types of the type information are acquired from the plurality of areas. The inspection system according to claim 23.

26. An inspection system for inspecting gaming currency incorporating at least an RFID tag storing type information, a placement surface having a plurality of areas for placing one by one a plurality of gaming currency related to the inspection, an RFID reading system that reads the RFID tags of the gaming currency placed in each of the plurality of areas of the placement surface, for each of the areas, a display device that displays the type information read by the RFID reading system; An inspection system comprising.

Images