Multi-person competitive card table

Abstract

The utility model discloses a multi-person competition card table, and belongs to the technical field of card tables with a data acquisition function. A table top of the multi-person competition card table is divided into a plurality of card showing areas, and an antenna arrangement layer is arranged below the table top. An annular electronic tag induction antenna is arranged on the antenna arrangement layer and corresponds to the area periphery of each card playing area in a surrounding mode, the feed end of each electronic tag induction antenna is electrically connected to the corresponding antenna tuning circuit, and the radio frequency end of each antenna tuning circuit is connected to an electronic tag signal reader. And the signal output end of the electronic tag signal reader is connected to the data acquisition processor. According to the utility model, accurate data acquisition can be carried out on label signals carried by cards on a card table in a competition process, missing of the cards is avoided, subsequent analysis is facilitated, and a reliable data basis is provided for intelligent process management of card competition.

Description

Technical Field

[0001] This utility model relates to the field of card table technology with data acquisition function, and in particular to a multi-player competitive card table. Background Technology

[0002] As card games are increasingly recognized as a suitable sport for promotion and competitions are held, higher demands are being placed on the functionality of card tables. Traditional card tables are only suitable for regular entertainment. Although some intelligent card tables on the market can automatically shuffle and deal cards, with the rise of competitive card games and people's pursuit of fairness in card games, data collection and recording during gameplay have become particularly important.

[0003] Especially in card games, intelligent card tables need to enable intelligent information management throughout the entire competition process. This includes real-time display of scores, player play information, and play timing during competitions; intelligent card verification; intelligent call-and-response; intelligent card reporting when necessary; and replay of the competition process. The realization of these functions all relies on accurate and real-time collection of tabletop card data, laying the foundation for process control and the fairness of the results in card games. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-player competitive card table that can accurately collect data on the tag signals carried by the cards on the table during the competition, avoid missing cards, facilitate subsequent analysis, and provide a reliable data foundation for the intelligent process management of card games.

[0005] The technical solution adopted by this utility model is: a multi-player competitive card table, the tabletop is divided into multiple card playing areas, and an antenna arrangement layer is provided under the tabletop;

[0006] On the antenna arrangement layer, a ring-shaped electronic tag sensing antenna is set around the perimeter of each card-playing area. The feed terminal of each electronic tag sensing antenna is electrically connected to the corresponding antenna tuning circuit. The radio frequency terminal of each antenna tuning circuit is connected to the electronic tag signal reader. The signal output terminal of the electronic tag signal reader is connected to the data acquisition processor.

[0007] Optionally, any two of the plurality of playing areas may have overlapping areas.

[0008] Each playing area has a verification area that is not overlapped with other playing areas. The signal strength detected by the electronic tag antenna in the verification area will be significantly higher than that detected by the tag antennas in other playing areas. When it is necessary to detect the total number of cards held by each party, placing the cards of each party in the verification area can improve the detection accuracy and simplify the analysis process.

[0009] Furthermore, all of the multiple play areas cover the central area of ​​the card table. These designs can specifically improve the reliability of detecting cards that land at the edges of the play areas, especially in the center of the table.

[0010] Optionally, the multiple playing areas are identical in shape and size and evenly distributed across the card table. This design is suitable for card games involving 2, 3, 4, or more players; the number of playing areas on the table can be determined based on the number of players.

[0011] Optionally, the number of playing areas is 4, which are respectively in the shape of rounded isosceles triangles or rounded fan shapes, and are evenly distributed on the four sides of the square card table;

[0012] The edges of any two adjacent playing areas are parallel to the diagonal of the square table and are located inside the opponent's playing area. Alternatively, the table can be circular, or all playing areas can form a circular area.

[0013] Optionally, the tabletop of the multiplayer competitive card table includes a base layer and a tabletop layer that are fitted together and detachably fixed. On the surface of the base layer facing the tabletop layer, grooves are provided around the perimeter of each card-playing area, and the electronic tag sensing antenna is embedded within these grooves. This design makes the card table and its internal antenna structure more coordinated, and the antenna position more stable, laying the foundation for stable sensing performance during use.

[0014] Optionally, each of the antenna tuning circuits corresponding to each card playing area is carried on an antenna tuning board and fixedly installed on the outer side of the corresponding card playing area facing the side of the card table;

[0015] Each antenna tuning board is electrically connected to an electronic tag signal reader.

[0016] Optionally, the electronic tag sensing antenna is an RFID high-frequency loop antenna, and the electronic tag signal reader is an RFID reader. In this implementation, an RFID tag can be embedded in the playing card to carry the card's information. Alternatively, the embedded tag can also be an NFC tag; correspondingly, the antenna can be an NFC antenna such as a loop coil antenna, transmitting NFC tag information through electromagnetic induction coupling, and the tag signal reader is an NFC reader.

[0017] Optionally, on the table of a multiplayer competitive card game, a display area and an operation area are also provided on the outside of each card-playing area;

[0018] The display area is equipped with a display unit, and the operation area includes a pass key, a report key, and a bid / judgment key. The signal input terminal of the display unit, as well as the signal output terminals of the pass key, report key, and bid / judgment key, are electrically connected to the data acquisition processor.

[0019] Beneficial effects

[0020] The antenna system of this utility model, by setting induction antennas around multiple playing areas, can collect real-time card information of the tagged cards in the playing areas corresponding to each competitor, avoid missing cards, and provide a reliable data foundation for intelligent analysis during the competition.

[0021] Meanwhile, through the design of the intersection area between the multiple antenna sensing areas corresponding to multiple card playing areas, this utility model can more reliably collect card information of cards placed at the edge of the card playing area, avoiding the loss of card playing data in the card game competition process. Attached Figure Description

[0022] Figure 1 The diagram shown is a schematic representation of the tabletop division area of ​​a four-player competitive card table according to an embodiment of this utility model.

[0023] Figure 2 The diagram shown is a schematic representation of the tabletop division area of ​​another four-player competitive card table provided in this embodiment of the present invention.

[0024] Figure 3 The diagram shown is a schematic diagram of the transmission path of the electronic tag signal in an embodiment of this utility model.

[0025] Figure 4 The diagram shown is a schematic diagram of the antenna arrangement inside the card table in an embodiment of this utility model;

[0026] Figure 5 As shown Figure 3 The diagram shows the setup and connection of the antenna and antenna tuning circuit in the illustrated embodiment;

[0027] Figures 1 to 5 In the middle, 1-groove, 2-electronic tag sensing antenna, 21-antenna feed end, 3-antenna tuning board, 31-circuit mounting box, 32-antenna tuning circuit RF terminal connection line. Detailed Implementation

[0028] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details.

[0029] It should be noted that in the following description, the terms "center," "upper," "lower," "east," "south," "west," and "north," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Example 1

[0032] This embodiment describes a multiplayer competitive card table, referencing... Figure 1 and Figure 2 As shown, the multiplayer competitive card table is divided into multiple playing areas, and an antenna layer is located beneath the table. (Reference) Figure 3 and Figure 4 As shown, on the antenna arrangement layer, an electronic tag sensing antenna is set around the perimeter of each card-playing area. The two ends of each electronic tag sensing antenna are connected to the corresponding antenna tuning circuit. The radio frequency terminal of each antenna tuning circuit is connected to the electronic tag signal reader. The signal output terminal of the electronic tag signal reader is connected to the data acquisition processor.

[0033] In RFID and NFC sensing technologies, antenna tuning circuits are used to configure resonant frequencies, impedance matching, and other parameters. For example, the antenna tuning circuit of an RFID antenna uses an LC resonant circuit, impedance matching network, EMC filter circuit, and automatic tuning technology to match and amplify the signal received by the antenna, ensuring that the antenna can transmit and receive signals at the specified operating frequency. RFID readers can then process the signal processed by the antenna tuning circuit.

[0034] When an RFID tag enters the reader's identification range, the tag transmits its information back to the reader via backscattering technology. The reader receives these signals through an antenna and antenna tuning circuit, and then processes the received signals through demodulation and filtering to obtain the tag information, which in this invention refers to the card information carried by each card. Specific details can be found in existing technologies, which will not be elaborated upon here.

[0035] In this embodiment, RFID or other electronic tags can be embedded within the playing cards to carry card information, including the card's rank and suit. Taking RFID tags as an example, this card information can be encoded into an EPC code format and carried within the RFID tag embedded in the card. When a card carrying an electronic tag enters the area surrounded by the electronic tag's sensing antenna in each playing zone, the information written in the electronic tag will be detected by the antenna, and further read by an RFID reader to obtain the tag's EPC data.

[0036] In some possible implementations, each player's designated playing area is equipped with a set of electronic tag sensing antennas, antenna tuning circuits, and electronic tag signal readers. The signal outputs of all electronic tag signal readers are then connected to a data processor. In other possible implementations, each electronic tag sensing antenna and antenna tuning circuit is configured with only one tag electronic reader. For example, using multi-antenna spatial division positioning technology, a unique address code is assigned to each antenna. When an electronic tag is read, the antenna's address code, along with the data carried by the electronic tag, is transmitted to the reader, thereby enabling the identification of the antenna from which the tag originates. Further details can be found in existing technologies.

[0037] The data acquisition processor described in this embodiment is mainly used for collecting card information from the tabletop cards. It can be a data processing center for managing the entire process of card games, or a data processor that independently collects card data. In this case, a microcontroller such as a single-chip microcomputer can be used.

[0038] In some possible implementations, the playing areas of different competitors may have different sizes and shapes. However, in more cases, the competition rules that multiple competitors need to follow in card games are the same, and the playing areas should also be the same. Under this setting, the shape and size of multiple playing areas should preferably be the same and evenly distributed on the card table.

[0039] This invention is applicable to card games involving 2, 3, 4 or more players. The number of areas on the table can be divided according to the number of players, and an antenna system can be set up accordingly.

[0040] Example 2

[0041] Based on Example 1, this example also has the following improvements:

[0042] In this multi-play zone system, any two play zones overlap, and all play zones cover the central area of ​​the card table. This design effectively improves the reliability of detecting cards that land at the edges of the play zones, particularly in the center of the table.

[0043] The following explanation uses a 4-player game as an example.

[0044] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, corresponding to the four card-playing directions (east, west, south, north) of the playing area, there are four playing areas on the square card table, each in a rounded-corner fan shape, evenly distributed on the four sides of the square card table. The edge lines of corresponding sides of any two adjacent playing areas are parallel to the diagonal of the square card table and are located inside the opponent's playing area. Each playing area covers the central area of ​​the card table. The card table can also be set as a circle, with the playing areas evenly distributed, and the edge lines of adjacent sides of any two adjacent playing areas being parallel to each other.

[0045] Furthermore, each playing area has a card verification area in the middle that is not overlapped with other playing areas.

[0046] In RFID technology, the RSSI (Received Signal Strength Indicator) value is used to measure the signal strength returned from the RFID tag to the reader, and the RSSI value can be obtained through further calculation.

[0047] Naturally, the RSSI value of the RFID tags located in the aforementioned card verification area will be significantly higher than the detection results of the tag antennas in other card playing areas. Therefore, when it is necessary to detect the total number of cards owned by each player, it is only necessary to place all the cards of each player in the card verification area, and the players can be easily distinguished according to the size of the RSSI value, which can greatly simplify the efficiency of subsequent detection and analysis of card ownership.

[0048] Combination Figures 1 to 3 as well as Figure 5 As shown, in this embodiment, the tabletop of the multiplayer competitive card table includes a base layer and a tabletop layer that are fitted together and detachably fixed. On the surface of the base layer facing the tabletop layer, grooves 1 are provided at the edges of the areas corresponding to each card-playing zone. Figure 2 The orange lines in the diagram indicate the electronic tag sensing antenna 2 corresponding to a single card-playing area. The electronic tag sensing antenna 2 is embedded within the groove 1. This design makes the card table and its internal antenna structure more coordinated and the antenna position more stable.

[0049] like Figure 3 and Figure 5 As shown, since multiple card-playing areas have overlapping parts, the electronic tag sensing antennas of different card-playing areas also intersect and overlap. The wiring can be run vertically at the intersection and overlap of the electronic tag sensing antennas.

[0050] Combination Figures 3 to 5In this embodiment, each of the four card-playing areas (east, west, south, and north) is equipped with a combination of electronic tag sensing antennas, antenna tuning circuits, and electronic tag signal readers. This includes: a first tag sensing antenna, a first antenna tuning circuit, and a first tag reader for the east card-playing area; a second tag sensing antenna, a second antenna tuning circuit, and a second tag reader for the north card-playing area; a third tag sensing antenna, a third antenna tuning circuit, and a third tag reader for the west card-playing area; and a fourth tag sensing antenna, a fourth antenna tuning circuit, and a fourth tag reader for the south card-playing area. Each antenna tuning circuit corresponding to a card-playing area is mounted on an antenna tuning board 3 and fixed to the outer side of the corresponding card-playing area facing the card table via a circuit fixing box 31. The lower part of the tabletop layer can be provided with corresponding embedded slots for other protruding components such as the circuit fixing box 31, or the middle surface of the base layer can be recessed downwards to form a cavity for installing antennas and other components, so that the tabletop layer and the base layer can fit together around the perimeter of the table. The feed terminal of the electronic tag sensing antenna is connected to the corresponding antenna tuning circuit, the radio frequency terminal of the antenna tuning circuit is connected to the corresponding electronic tag signal reader, and the signal output terminals of all electronic tag signal readers are connected to the data acquisition processor.

[0051] After data acquisition, the data acquisition processor can assign a unique identification code or identifier to the card information read by each antenna, thereby enabling the matching of the detected cards in each playing area to the corresponding competitors in subsequent data analysis. Details outside the scope of this invention will not be elaborated upon.

[0052] In this embodiment, the electronic tag signal reader is an RFID reader, and the electronic tag sensing antenna is a high-frequency loop antenna, forming a multi-channel high-frequency near-field stacked loop antenna array across all card-playing areas. This array reads tag information from the cards in each card-playing area using multiple different energy radiation direction ranges. An RFID tag can be embedded within the card to carry the card's information. This information may include the card's rank and suit. This information can be encoded into an EPC code format and carried in the embedded RFID tag. The antenna detects the corresponding signal, and the RFID reader further reads the tag's EPC and RSSI data.

[0053] In some possible embodiments, the tag embedded in the card can also be an NFC tag. Correspondingly, the antenna can be an NFC antenna such as a loop coil antenna, and the NFC tag information can be transmitted through electromagnetic induction coupling. The tag signal reader is an NFC reader.

[0054] In this embodiment, when the cards are located in the verification area, after the data acquisition processor obtains the EPC and RSSI data of all card tags read by the electronic tag signal readers, it can directly eliminate redundant data based on the magnitude of the RSSI signal value during analysis, thereby determining the player or player to whom each card belongs. At the start of the game, the player to whom each card belongs can be marked by having all players place all their cards in the verification area.

[0055] During subsequent rounds, when a card falls into a non-intersecting play area, redundant data can be eliminated directly based on the RSSI signal value to determine the player or player associated with the card. When a card falls into the intersection of multiple play areas, multiple antennas can work together to avoid missing the corresponding card. Furthermore, given that the player to whom the card belongs was already marked during the initial card verification, the player's information can be matched to obtain the information of the player who played the card.

[0056] refer to Figure 2 As shown, in this embodiment, the multi-player competitive card table has a display area and an operation area on the outer side of each playing area. The display area has a display unit, which can use an existing display screen. The operation area includes a pass button, a report button, and a referee / judgment button. The signal input terminal of the display unit, and the signal output terminals of the pass button, report button, and referee / judgment button are electrically connected to the data acquisition processor. This design enables the card table of this utility model to support more intelligent competitive process management and display of card game process information. For example, during the card game, when a player presses the report button, the data acquisition processor or a logic device connected to it can respond to the report signal to calculate the remaining cards of the current player and display them through the display unit; when a player presses the report button, the data acquisition processor or a logic device connected to it can respond to the pass signal and prompt the next player to play a card through the display unit; when a player presses the referee / judgment button, the data acquisition processor or a logic device connected to it can respond to the referee / judgment signal and output a referee / judgment notification signal. However, this utility model only provides the basic card table structure to support these functions; the specific analysis of the implementation of the functions is not the focus of this utility model.

[0057] In some possible embodiments, the pass, report, and bid / judgment buttons in the operation area can also be function keys displayed on the screen, allowing users to perform operations such as pass, report, and bid / judgment via touchscreen.

[0058] In summary, the antenna system of this invention can accurately collect information about the cards on the table during a game, providing a reliable data foundation for intelligent data analysis and management of card games.

[0059] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present utility model without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present utility model.

Claims

1. A multiplayer competitive card table, characterized in that, The table is divided into multiple card-playing areas, and an antenna arrangement layer is located at the bottom of the table. On the antenna arrangement layer, a ring-shaped electronic tag sensing antenna is set around the perimeter of each card-playing area. The feed terminal of each electronic tag sensing antenna is electrically connected to the corresponding antenna tuning circuit. The radio frequency terminal of each antenna tuning circuit is connected to the electronic tag signal reader. The signal output terminal of the electronic tag signal reader is connected to the data acquisition processor.

2. The multiplayer competitive card table according to claim 1, characterized in that, Among the multiple playing areas, any two playing areas have overlapping areas; Each playing area has a card verification area in the middle that is not overlapped by other playing areas.

3. The multiplayer competitive card table according to claim 2, characterized in that, The multiple card-playing areas all cover the central area of ​​the card table.

4. The multiplayer competitive card table according to any one of claims 1-3, characterized in that, The multiple playing areas are identical in shape and size and are evenly distributed on the card table.

5. The multiplayer competitive card table according to claim 4, characterized in that, The number of playing areas is 4, which are either rounded isosceles triangles or rounded fan shapes, and are evenly distributed on the four sides of the square card table. The edge lines of any two adjacent playing areas are parallel to the diagonal of the square card table and are located inside the opponent's playing area.

6. The multiplayer competitive card table according to any one of claims 1-3, characterized in that, The tabletop of the multiplayer competitive card table includes a base layer and a tabletop layer that are attached to each other and can be detachably fixed. On the surface of the base layer facing the tabletop layer, there are grooves around the perimeter of the area corresponding to each card playing area, and the electronic tag sensing antenna is embedded in the groove.

7. The multiplayer competitive card table according to any one of claims 1-3, characterized in that, Each of the antenna tuning circuits corresponding to each card playing area is carried on an antenna tuning board and is fixedly installed on the outer side of the corresponding card playing area facing the side of the card table; Each antenna tuning board is electrically connected to an electronic tag signal reader.

8. The multiplayer competitive card table according to any one of claims 1-3, characterized in that, The electronic tag sensing antenna is an RFID high-frequency loop antenna, and the tag signal reader is an RFID reader.

9. The multiplayer competitive card table according to any one of claims 1-3, characterized in that, Each card-playing area on the table also has a display area and an operation area on its outer side; The display area is equipped with a display unit, and the operation area includes a pass key, a report key, and a bid / judgment key. The signal input terminal of the display unit, as well as the signal output terminals of the pass key, report key, and bid / judgment key, are electrically connected to the data acquisition processor.

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