Contact type chess and card recognition device and card sorting machine

Abstract

The utility model provides a contact type chess and card recognition device, and belongs to the technical field of card arranging machines. Comprising a contact type recognition device and a chess and card sensing area used for containing to-be-recognized chess and cards. The contact type recognition device is arranged opposite to the detection face of the chess and card to be recognized, and the contact type recognition device directly makes physical contact with the chess and card to be recognized. The contact type recognition device comprises a contact rod, a contact, a position sensor and a control module, the contact is arranged at one end of the contact rod, the other end of the contact rod is connected with the position sensor, and the position sensor is connected with the control module; the contact is used for responding to concave-convex character marks of mahjong tiles to generate actions, the position sensor is used for responding to the actions of the contact to generate signals, and the control module is used for receiving the signals output by the position sensor. According to the utility model, the problem of poor precision of color identification of the board surface is solved. Compared with the prior art, the recognition precision is high, and the detection efficiency is effectively improved; and the structure is simple, installation is convenient, maintenance is easy, and cost is low.

Description

TECHNICAL FIELD

[0001] The application relates to a contact type chess piece recognition device and belongs to the technical field of card sorting machines. BACKGROUND

[0002] The non-magnetic chess piece in the prior art uses a color sensor as a front and back surface recognition sensor, and the front and back surfaces of the chess piece need to be calibrated when the color sensor is used, and then recognition is performed according to the calibration result. However, the color of the chess piece is not uniform, and the color position of each mahjong tile is different. The non-uniform color position of the chess piece leads to low accuracy of the front and back surface recognition of the mahjong tile using the color sensor, and there is a situation that the front and back colors are similar. In this case, the recognition accuracy is even worse.

[0003] Therefore, the technology of recognizing the front and back surfaces of the chess piece using the color sensor cannot meet the existing demand, and an accurate device for recognizing the front and back surfaces of the chess piece is urgently needed. CONTENT OF THE UTILITY MODEL

[0004] In the following, a brief summary of the utility model is given in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive summary of the utility model. It is not intended to determine the key or important parts of the utility model, nor to limit the scope of the utility model. Its purpose is only to give some concepts in a simplified form as a prelude to the more detailed description discussed later.

[0005] In view of this, in order to solve the technical problem of poor precision of color recognition card surface in the prior art, the utility model provides a contact type chess piece recognition device.

[0006] Scheme one, a contact type chess piece recognition device, comprising a contact type recognition device and a chess piece sensing area for accommodating a chess piece to be recognized; the contact type recognition device is arranged opposite to the detection surface of the chess piece to be recognized, and the contact type recognition device directly physically contacts the chess piece to be recognized.

[0007] Preferably, the contact type recognition device comprises a contact rod, a contact head, a position sensor and a control module, the contact head is arranged at one end of the contact rod, the other end of the contact rod is connected with the position sensor for sensing the displacement of the contact rod, and the position sensor is connected with the control module; the contact head is used to respond to the concave-convex characters of the mahjong tile to produce an action, the position sensor is used to respond to the action of the contact head to produce a signal, and the control module is used to receive the signal output by the position sensor.

[0008] Preferably, the position sensor is an electromagnetic induction type sensor, a pressure conversion type sensor or a detection distance type sensor.

[0009] Preferably, the contact rod comprises a detection part, an elastic part and a supporting part; one end of the detection part is in physical contact with the chessboard through a contact head, and the other end is connected with the supporting part through the elastic part; and the rear end of the supporting part is connected with a position sensor.

[0010] Preferably, the contact rod is at least two, and is distributed based on the center point of the height of the chessboard.

[0011] Preferably, the contact rod is arranged at the edge of the chessboard, and is used for identifying the interval signal of the chessboard.

[0012] Preferably, the contact type identification device is a three-coordinate measuring machine, an articulated arm measuring machine, a capacitive sensor, a potentiometer sensor, a linear displacement sensor or a grating displacement sensor.

[0013] Preferably, the contact type identification device is an inductive sensor, and when the contact type identification device is an inductive sensor, the contact type identification device has relative motion with the chessboard.

[0014] Preferably, the identification device further comprises a base, and the chessboard sensing area and the contact type identification device are arranged on the base.

[0015] Preferably, the identification device further comprises a positioning module, and an output end of the positioning module is connected with an input end of the control module.

[0016] Scheme two, a card shuffler, the card shuffler comprises a contact type chessboard identification device according to scheme one.

[0017] Preferably, the card shuffler is a mahjong machine or a bone card machine or a Lami card machine.

[0018] The beneficial effects of the utility model are as follows:

[0019] The utility model is suitable for a wide range of applications, and can be applied to both magnetic chessboards and non-magnetic chessboards.

[0020] The utility model breaks through the difficulty of destroying the structure of the card body and placing a magnetic object to identify the card surface of the traditional magnetic chessboard, and beautifies the appearance of the customized chessboard.

[0021] Compared with the prior art, the utility model has high identification precision.

[0022] The utility model has high detection efficiency.

[0023] The utility model has the advantages of simple structure, convenient installation, easy maintenance and low cost. DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application. In the drawings:

[0025] Figure 1 Fig. 1 is a schematic diagram of a contact type chess recognition device structure;

[0026] Figure 2 Fig. 2 is a schematic diagram of a contact type recognition device in physical contact with a chess piece, in which 1-1 is a partial enlarged view;

[0027] Figure 3 Fig. 3 is a schematic diagram of a chess piece sensing area;

[0028] Figure 4 Fig. 4 is a schematic diagram of a contact rod structure;

[0029] Figure 5 Fig. 5 is a schematic diagram of a contact type recognition device structure;

[0030] Figure 6 Fig. 6 is a schematic diagram of a contact type recognition device structure from a side view.

[0031] In the drawings, 1 is a contact type recognition device; 2 is a chess piece; 3 is a chess piece sensing area; 4 is a contact rod; 5 is a contact head; 6 is a position sensor; 41 is a detection part; 42 is an elastic part; and 43 is a support part. DETAILED DESCRIPTION

[0032] In order to make the technical solutions and advantages of the embodiments of the present application clearer, the following further describes the exemplary embodiments of the present application with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict.

[0033] Embodiment 1, refer to Figures 1-6The embodiment is illustrated by a contact type chess piece recognition device, the chess piece with concave-convex character marks on the front side, such as mahjong tiles, paiji tiles and lami tiles. The mahjong tile is taken as an example in the embodiment. According to the prior art, the front side of the mahjong tile with character marks is generally concave. Therefore, the front and back sides of the mahjong tile can be recognized according to the concave-convex character marks on the front side of the mahjong tile. The mahjong tile moves forward along a track and moves in the state that the front and back sides are opposite. The recognition device is arranged on one side of the track. The front and back sides of the mahjong tile are recognized by detecting the concave-convex character marks on the front side of the mahjong tile. Specifically, the contact type recognition device 1 and a chess piece sensing area 3 for accommodating a chess piece to be recognized 2 are included. The contact type recognition device 1 is arranged opposite to the detection surface of the chess piece to be recognized 2 and has relative movement with the chess piece 2. The contact type recognition device 1 directly physically contacts the chess piece to be recognized 2.

[0034] The contact type recognition device 1 includes a contact rod 4, a contact head 5, a position sensor 6 and a control module. The contact head 5 is arranged at one end of the contact rod 4. The other end of the contact rod 4 is connected to the position sensor 6. The position sensor 6 is connected to the control module. The contact head 5 is used to respond to the concave-convex character marks of the mahjong tile to generate an action. The position sensor is used to respond to the action of the contact head 5 to generate a signal. The control module is used to receive the signal output by the position sensor 6.

[0035] The contact rod 4 includes a detection part 41, an elastic part 42 and a support part 43. One end of the detection part 41 physically contacts the chess piece 2 through the contact head 5. The other end of the detection part 41 is connected to the support part 43 through the elastic part 42. The rear end of the support part 43 is connected to the position sensor 6.

[0036] The detection part 41 and the elastic part 42 can be hinged or integrally connected to ensure that the detection part 41 has a downward tendency and can be lifted only after contacting the mahjong tile. That is, the elastic body starts to store energy when the contact rod contacts the mahjong tile, so that the contact point of the contact rod has a pressure on the mahjong tile. When the mahjong tile has a concave pit, the contact point of the contact rod enters the concave pit, so that the contact rod has an action and the position sensor 6 has a signal. The elastic part 42 can provide a restoring force to the detection part 41 to restore the original position, support the contact rod 4 and allow the action of the contact head 5 to be transmitted to the electromagnetic induction sensor with low loss.

[0037] The position sensor 6 can be an electromagnetic induction sensor, a pressure conversion sensor or a detection distance sensor.

[0038] The working principle of the present embodiment is illustrated by taking an electromagnetic induction sensor as an example. The electromagnetic induction sensor includes a coil and a magnet. One end of the elastic part 42 is connected to the detection part 41, and the other end is connected to the magnet. The coil is fixed on the detection part 41. Alternatively, one end of the elastic part 42 is connected to the detection part 41, and the other end is connected to the coil. The magnet is fixed on the detection part 41. The movement of the contact 5 will cause the movement of the elastic part 42. Thus, the magnet will move relative to the coil. Then, the metal wire in the coil will cut the magnetic induction line, thereby generating an electromotive force at both ends of the wire in the coil. The action signal of the contact can be obtained by detecting the electromotive force at both ends of the wire in the coil.

[0039] The contact rods 4 are at least two and are distributed around the center point of the height of the chessboard 2.

[0040] The working principle of the present embodiment is illustrated by taking five contact rods 4 of the contact recognition device 1 as an example to identify the front and back of the mahjong tile. The mahjong tile passes through the contact recognition device 1 in a unified order. The contact recognition device 1 is provided with five contact rods 4. Each contact rod 4 includes a detection part 41, an elastic part 42, and a support part 43. The detection part 41 is suspended and provided with a contact 5 at one end for physical contact with the chessboard 2. The other end is connected to the support part 43 through the elastic part 42. Each contact rod 4 is provided with a contact 5 on the detection part 41. The contact 5 is used to contact the detection surface of the mahjong tile. The detection surface of the mahjong tile is the front and back of the mahjong tile. The contact 5 can be a position sensor 6 configured to generate a signal in response to the movement of the contact 5. By comparing the signals of the five contact rods, the front and back of the mahjong tile can be identified. Specifically, for the five contact rods, if the back of the mahjong tile is contacted, the action signals of the five contact rods are consistent. Because the back of the mahjong tile is flat, the action signals of the five contacts will not change. If the front of the mahjong tile is contacted, the front of the mahjong tile has a concave pit. At least one of the five contact rods will have an action. The action signals of the five contact rods are inconsistent. Because the front of the mahjong tile is uneven, the action signals of the five contacts will change.

[0041] The contact recognition device can also be a three-coordinate measuring machine, a joint arm measuring machine, a capacitive sensor, a potentiometer sensor, a linear displacement sensor, or a grating displacement sensor.

[0042] The contact recognition device can also be an inductive sensor. When the contact recognition device is an inductive sensor, the contact recognition device has relative movement with the chessboard.

[0043] The principles of the inductive sensor and the capacitive sensor in the recognition device are illustrated in the present embodiment. The principles of other recognition devices are not described in detail.

[0044] The detection principle of the inductive sensor is: the inductive sensor directly contacts the to-be-detected chessboard 2, and the magnetic resistance changes when the inductive sensor contacts the concave-convex marks on the chessboard 2. When the magnetic resistance in the magnetic circuit changes, the inductance of the coil also changes accordingly, thereby causing the change of the output signal. At this time, the to-be-detected chessboard 2 is the front surface. When the inductive sensor contacts the chessboard 2 without the concave-convex marks, the magnetic resistance does not change. At this time, the to-be-detected chessboard 2 is the back surface. The magnetic resistance change signal generated by the concave-convex structure of the chessboard mark surface and the signal generated by the back surface of the chessboard without the magnetic resistance change generate a distance signal difference. In this way, the front surface and the back surface of the mahjong tile are detected, and then the front surface and the back surface signal can be transmitted to the tile turning structure to guide the tile turning structure to correctly turn the tile.

[0045] The detection principle of the inductive sensor is: the inductive sensor directly contacts the to-be-detected chessboard 2, and the magnetic resistance changes when the inductive sensor contacts the concave-convex marks on the chessboard 2. When the magnetic resistance in the magnetic circuit changes, the inductance of the coil also changes accordingly, thereby causing the change of the output signal. At this time, the to-be-detected chessboard 2 is the front surface. When the inductive sensor contacts the chessboard 2 without the concave-convex marks, the magnetic resistance does not change. At this time, the to-be-detected chessboard 2 is the back surface. The magnetic resistance change signal generated by the concave-convex structure of the chessboard mark surface and the signal generated by the back surface of the chessboard without the magnetic resistance change generate a distance signal difference. In this way, the front surface and the back surface of the mahjong tile are detected, and then the front surface and the back surface signal can be transmitted to the tile turning structure to guide the tile turning structure to correctly turn the tile.

[0046] Embodiment 2, the difference from embodiment 1 is that the contact rod 4 is arranged at the edge of the chessboard 2, and is used for identifying the interval signal of the chessboard 2.

[0047] For all the chessboards 2, the position close to the edge of the chessboard 2 is flat. By arranging the contact rod 4 at the edge of the chessboard 2, the contact rod 4 is classified, and the interval signal of the two mahjong tiles can be identified. If the mahjong tiles are not close together, the interval signal of the two mahjong tiles can also be identified.

[0048] Embodiment 3, the difference from embodiment 1 is that the identification device further comprises a base, the chessboard sensing area 3 and the laser identification device are arranged on the base. The laser identification device is arranged on one side of the chessboard sensing area 3.

[0049] Embodiment 4, the difference from embodiment 1, embodiment 2 and embodiment 3 is that the identification device further comprises a positioning module; the output end of the positioning module is connected with the input end of the control module, and is used for identifying the interval signal of the chessboard 2.

[0050] The positioning module collects the position signal of the to-be-identified chessboard 2 and transmits the collected signal to the control module, the control module controls the contact type identification device 1 to perform a contact action for a certain time, judges the front and back of the to-be-detected chessboard 2 by comparing the signal returned by the contact rod 4, and then transmits the front and back signal to the card turning structure to control the card turning structure to turn the card correctly.

[0051] The time for the contact type identification device 1 to perform the contact action can be set according to actual conditions.

[0052] The positioning module is a position sensor 6 or a limit switch or a proximity switch or a photoelectric switch or an encoder or an ultrasonic sensor or a visual sensor.

[0053] The control module is a PLC or a microprocessor or a single-chip microcomputer or an industrial computer or a distributed control system.

[0054] Embodiment 5, a card shuffler, the card shuffler comprising a contact type chessboard 2 identification device as described in embodiment 1 or embodiment 2 or embodiment 3 or embodiment 4.

[0055] The card shuffler is a mahjong machine or a backgammon machine or a rummy machine.

[0056] Although the present application is described in terms of a limited number of embodiments, those skilled in the art, with the benefit of the description above, will appreciate that other embodiments are possible within the scope of the application described herein. Furthermore, it should be noted that the language used in the specification is principally selected for readability and instructional purposes and can not have been selected to convey an exclusive or exhaustive explanation of the application. Therefore, many modifications and variations of the application are possible in light of the above teachings without departing from the scope and spirit of the appended claims. The disclosure of the application is illustrative only and not restrictive of the scope of the application, which is defined by the appended claims.

Claims

1. A contact type board game recognition device, characterized by, The contact type identification device (1) and the mahjong tile sensing area (3) for accommodating the mahjong tile (2) to be identified are included; the contact type identification device (1) is arranged opposite to the detection surface of the mahjong tile (2) to be identified; the contact type identification device (1) directly physically contacts the mahjong tile (2) to be identified.

2. The contact type chessboard recognition device according to claim 1, characterized in that, The contact type identification device (1) includes a contact rod (4), a contact head (5), a position sensor (6) and a control module, the contact head (5) is arranged at one end of the contact rod (4), the other end of the contact rod (4) is connected with the position sensor (6) for sensing the displacement of the contact rod, the position sensor (6) is connected with the control module; the contact head (5) is used for responding to the concave-convex marks of the mahjong tile to generate an action, the position sensor is used for generating a signal in response to the action of the contact head (5), and the control module is used for receiving the signal output by the position sensor (6).

3. A contact chess recognition device according to claim 2, characterized in that, The position sensor (6) is an electromagnetic induction type sensor, a pressure conversion type sensor or a detection distance type sensor.

4. The contact type chessboard recognition device according to claim 2, characterized in that, The contact rod (4) includes a detection part (41), an elastic part (42) and a supporting part (43); one end of the detection part (41) physically contacts the mahjong tile (2) through the contact head (5), the other end is connected with the supporting part (43) through the elastic part (42), and the rear end of the supporting part (43) is connected with the position sensor (6); and the position sensor (6) is connected with the control module.

5. The contact type chessboard recognition device according to claim 2, wherein, The contact rod (4) is at least two, and is distributedly arranged based on the center point of the height of the mahjong tile (2).

6. The contact type chessboard recognition device according to claim 2, wherein, The contact rod (4) is arranged at the edge of the mahjong tile (2) and is used for identifying the spacing signal of the mahjong tile (2).

7. The contact type chessboard recognition device according to claim 1, wherein, The contact type identification device (1) is a three-coordinate measuring machine, a joint arm measuring machine, a capacitive sensor, a potentiometer type sensor, a linear displacement sensor or a grating displacement sensor.

8. The contact chess recognition device according to claim 1, wherein, The contact type identification device (1) is an inductive sensor, and when the contact type identification device (1) is an inductive sensor, the contact type identification device (1) and the mahjong tile have relative motion.

9. The contact type chessboard recognition device according to claim 1, wherein, The identification device further includes a base, and the mahjong tile sensing area (3) and the contact type identification device (1) are arranged on the base.

10. The contact type chessboard recognition device according to claim 2, wherein, The identification device further includes a positioning module, and an output end of the positioning module is connected with an input end of the control module.

11. A card shuffler, comprising: The shuffling machine includes the contact type mahjong tile identification device according to any one of claims 1 to 10.

12. The card shoe of claim 11, wherein, The shuffling machine is a mahjong machine or a bone tile machine or a Lami tile machine.

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