Electronic chessboard capable of sensing positions of chess pieces in real time
By setting a sensing unit on the chessboard to identify the position of the chess piece, the problem of high manual input or image recognition delay in the prior art is solved, low-latency and low-cost chess piece position recognition is realized, and remote chess piece position recognition is supported.
Patent Information
- Application Number
- CN202422049385.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-23
AI Technical Summary
Existing chessboards and chess pieces need to be manually inputted on the computer or identified the image information collected by the photography equipment through the computer, resulting in high delays and costs.
A sensing unit including a surface layer, a PCB board, a frame and a metal chess piece, covering the generator electrode and the receiving electrode, is designed, and a capacitive electric field is used to identify the position of the chess piece, and output it to a computer or network in real time.
Real-time recognition of chess position is realized, delay and cost are reduced, and the implementation of remote chess is supported.
Smart Images
Figure CN223170287U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic chessboards, and particularly relates to an electronic chessboard capable of real-time sensing of the positions of chess pieces. Background Art
[0002] Playing chess is a common sports and entertainment activity, which can be specifically divided into multiple types such as Chinese chess, Go, military chess, and checkers. When playing chess, it is necessary to play against each other through the corresponding chessboard and chess pieces, and the chessboard and chess pieces can be selected according to actual requirements. In some cases, such as when carrying out a large-scale chess competition, it is necessary to display, monitor, and record the situation of the game in real time through photographic equipment, display equipment, and a computer. In addition, according to further actual requirements, such as when players play against each other remotely, or between a person and a robot, and between robots, and it is also necessary to identify the positions of the chess pieces in real time. At this time, it is necessary to manually input the position information of the chess pieces on the computer, or to identify the image information collected by the photographic equipment through the computer, and the delay and cost are relatively high. For this reason, we propose an electronic chessboard capable of real-time sensing of the positions of chess pieces. Summary of the Utility Model
[0003] The main purpose of the utility model is to propose an electronic chessboard capable of real-time sensing of the positions of chess pieces, aiming to solve the technical problems that for the existing chessboard and chess pieces, it is necessary to manually input the position information of the chess pieces on the computer, or to identify the image information collected by the photographic equipment through the computer, and the delay and cost are relatively high.
[0004] To achieve the above purpose, the electronic chessboard capable of real-time sensing of the positions of chess pieces proposed by the utility model includes a surface layer, a PCB board, a frame body, and chess pieces. The PCB board is installed in the frame body, the surface layer covers the PCB board, the surface layer has lines, the chess pieces are made of metal materials, and the chess pieces can be placed on the surface layer;
[0005] The PCB board includes a plurality of electronic components and several sensing units. The electronic components and the sensing units are both arranged on the PCB board. The sensing unit includes a generating electrode and a receiving electrode, and there is a gap between the generating electrode and the receiving electrode. The chess piece can cover both the generating electrode and the receiving electrode at the same time.
[0006] Optionally, the top surface of the generating electrode is circular, the top surface of the receiving electrode is annular, the radius of the circle of the generating electrode is smaller than the inner diameter of the ring of the receiving electrode, and the generating electrode is arranged inside the receiving electrode.
[0007] Optionally, the number of the PCB boards is one, the electronic components are arranged on the bottom surface of the PCB board, and the sensing units are arranged on the top surface of the PCB board.
[0008] Optionally, it further includes a pin header connector. The number of the PCB boards is two. The two PCB boards are sequentially arranged in the housing from top to bottom. The pin header connector is arranged between the two PCB boards and is electrically connected to the two PCB boards respectively. The electronic components are arranged on the lower PCB board, and the sensing unit is arranged on the upper PCB board.
[0009] Optionally, the surface layer is made of glass, acrylic or plastic film material.
[0010] Optionally, the surface layer is detachably connected to the PCB board and the housing.
[0011] Optionally, the surface layer includes a plurality of insertion blocks. The insertion blocks are arranged on the bottom surface of the surface layer. The housing and the PCB board both include a plurality of insertion holes. The insertion holes are arranged on the upper parts of the housing and the PCB board. The insertion blocks can be inserted into the insertion holes.
[0012] Optionally, the housing includes a mounting step. The mounting step is arranged on the upper part of the housing. The PCB board is arranged below the mounting step, and the surface layer is mounted on the mounting step.
[0013] Adopting the technical solution of the present utility model has the following beneficial effects:
[0014] By setting the surface layer, the PCB board, the housing, the chess pieces and the sensing unit, the position of the chess pieces can be recognized in real time. Outputting the real-time recognition result to the computer and the network, then the robot or the manipulator can be remotely controlled by the chess player, or the robot or the manipulator can be controlled independently by the computer system, realizing the effect of remote chess playing between players, or the effect of chess playing between a human and a robot, and between robots. Compared with the way of manually inputting the position information of the chess pieces on the computer or recognizing the image information collected by the photographic equipment by the computer, this structure has lower delay and cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0016] Figure 1 It is a schematic diagram of the overall structure of an electronic chessboard capable of sensing the position of chess pieces in real time according to an embodiment of the present utility model.
[0017] Figure 2Exploded structural schematic diagram of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model;
[0018] Figure 3 Structural schematic diagram of the PCB board of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model;
[0019] Figure 4 Structural schematic diagram of the sensing unit of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model;
[0020] Figure 5 Cross-sectional structural schematic of the sensing unit of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model Figure 1 ;
[0021] Figure 6 Cross-sectional structural schematic of the sensing unit of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model Figure 2 ;
[0022] Figure 7 Cross-sectional structural schematic of the sensing unit of an electronic chessboard capable of real-time sensing of the position of chess pieces according to an embodiment of the present utility model Figure 3 。
[0023] Explanation of the reference numerals in the drawings: surface layer 100, PCB board 200, sensing unit 210, generating electrode 2101, receiving electrode 2102, chess piece 300, finger 400, earth environment 500, frame 600.
[0024] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners
[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.
[0028] This utility model provides an electronic chessboard that can sense the position of chess pieces in real time.
[0029] Embodiment 1
[0030] As Figures 1 to 7 shown, in an embodiment of this utility model, the electronic chessboard that can sense the position of chess pieces in real time includes a surface layer 100, a PCB board 200, a frame 600, and chess pieces 300. Among them, the PCB board 200 is installed inside the frame 600, and the surface layer 100 covers the PCB board 200. Specifically, the surface layer 100 is made of glass, acrylic, plastic film material or other non-metallic materials, and lines are provided on the surface layer 100. The lines form a pattern for the chess players to play chess on the pattern. Further, the chess pieces 300 are made of metal materials. When playing chess, the chess players can place the chess pieces 300 on the pattern of the surface layer 100.
[0031] Specifically, the PCB board 200 includes a plurality of electronic components and several sensing units 210. The electronic components and the sensing units 210 are both arranged on the PCB board 200. Among them, the sensing unit 210 includes a transmitting electrode 2101 (Tx) and a receiving electrode 2102 (Rx). There is a gap between the transmitting electrode 2101 and the receiving electrode 2102, and the chess piece 300 can cover both the transmitting electrode 2101 and the receiving electrode 2102 at the same time. Specifically, the top surface of the transmitting electrode 2101 is circular, the top surface of the receiving electrode 2102 is annular, the radius of the circle of the transmitting electrode 2101 is smaller than the inner diameter of the ring of the receiving electrode 2102, and the transmitting electrode 2101 is concentrically arranged inside the receiving electrode 2102.
[0032] In this embodiment, the number of PCB boards 200 is one. The above-mentioned electronic components are arranged on the bottom surface of the PCB board 200, and the sensing units 210 are arranged on the top surface of the PCB board 200. The above-mentioned surface layer 100 is detachably connected to the PCB board 200 and the frame 600. Specifically, the surface layer 100 includes a plurality of insertion blocks, and the insertion blocks are arranged on the bottom surface of the surface layer 100. Both the frame 600 and the PCB board 200 include a plurality of insertion holes, and the insertion holes are arranged on the upper parts of the frame 600 and the PCB board 200. The insertion blocks can be inserted into the insertion holes. Further, the electronic components include a capacitive touch chip, a rectifier bridge, a transformer, and so on.
[0033] Further, taking Go as an example, the lines provided on the surface layer 100 form a pattern specifically as the Go board pattern. Each intersection node within the board is the position where the chess piece 300 is placed, and directly below the intersection node is the sensing unit 210. Moreover, one intersection node corresponds to one sensing unit 210. After the chess piece 300 is placed, the chess piece 300 made of metal material can simultaneously cover the transmitting electrode 2101 and the receiving electrode 2102, thereby connecting the transmitting electrode 2101 and the receiving electrode 2102 to identify the position of the chess piece 300. In some other embodiments, the lines provided on the surface layer 100 can form patterns of other types of chessboards, such as Chinese chess or military chess. For the chess pieces 300 in Chinese chess, after being placed, they are located within the grids in the pattern. Therefore, in the Chinese chessboard pattern, the sensing unit 210 is located directly below the grids.
[0034] As Figures 5 to 7 shown, the transmitting electrode 2101 (Tx) and the receiving electrode 2102 (Rx) of the sensing unit 210 form an annular capacitive electric field, and both the transmitting electrode 2101 and the receiving electrode 2102 are connected to the corresponding channels of the capacitive touch chip. The working process of the sensing unit 210 is as follows: The transmitting electrode 2101 (Tx) generates a signal of a certain frequency, and the receiving electrode 2102 (Rx) forms an annular capacitor to receive the signal from the transmitting electrode 2101 (Tx). When the chess piece 300 is placed above the sensing unit 210, the metal material of the chess piece 300 will increase the coupling electric field between the transmitting electrode 2101 and the receiving electrode 2102, thereby making the electrical signal passing through it larger to facilitate identifying the specific current position of the chess piece 300.
[0035] Specifically, when the transmitting electrode 2101 (Tx) sends a signal, it will generate Figure 5 the loop electric field from the transmitting electrode 2101 (Tx) to the receiving electrode 2102 (Rx) as shown, that is, the space indicated by the dotted arrow within the dotted square, enabling the signal to be transmitted along this path. However, due to the limited size of the annular capacitor formed by the transmitting electrode 2101 (Tx) and the receiving electrode 2102 (Rx), most of the electric field of the transmitting electrode 2101 (Tx) is scattered into space, which is called the open electric field.
[0036] Further, as Figure 6As shown in the figure, after placing the chess piece 300, it is equivalent to placing an electrode PCB board 200 above the transmitting electrode 2101 (Tx) and the receiving electrode 2102 (Rx), increasing the capacitance between the transmitting electrode 2101 (Tx) and the receiving electrode 2102 (Rx). As a result, part of the open electric field originally radiated into space by the transmitting electrode 2101 (Tx) becomes a loop electric field pointing to the chess piece 300 and flows to the receiving electrode 2102 (Rx). Thus, more charges pass through the electric field path formed by the chess piece 300, the transmitting electrode 2101 (Tx), and the receiving electrode 2102 (Rx), and reach the receiving electrode 2102 (Rx) from the transmitting electrode 2101 (Tx). Through the above structure, the signal received by the receiving electrode 2102 (Rx) becomes stronger, so as to identify that the chess piece 300 has fallen to the position of the sensing unit 210.
[0037] Furthermore, the sensing unit 210 can effectively prevent misidentification by the finger 400. During the chess game, the finger 400 of the chess player may also touch the chessboard, which will also cause changes in capacitance data. However, in this embodiment, the finger 400 will reduce the signal received by the receiving electrode 2102 (Rx), which is opposite to the effect that the chess piece 300 makes the signal received by the receiving electrode 2102 (Rx) stronger. Therefore, misidentification can be avoided.
[0038] As Figure 7 shown in the figure, when the finger 400 touches the sensing unit 210, the finger 400, the transmitting electrode 2101 (Tx), and the receiving electrode 2102 (Rx) form a larger capacitor, and a loop electric field for charge flow is formed by the finger 400, the transmitting electrode 2101 (Tx), and the receiving electrode 2102 (Rx). The charges radiated to the finger 400 can enter the earth environment 500 through the finger 400 and the human body. Therefore, in addition to the charges in the new "loop electric field" formed by the transmitting electrode 2101 and the receiving electrode 2102 and the finger 400, the charges in the original loop electric field formed by the transmitting electrode 2101 (Tx) and the receiving electrode 2102 (Rx) will also flow to the earth through the finger 400, thereby reducing the signal received by the receiving electrode 2102 (Rx). That is, the amount of charge that the receiving electrode 2102 (Rx) can receive will decrease due to the intervention of the finger 400, which is opposite to the effect that the chess piece 300 can achieve to make the signal received by the receiving electrode 2102 (Rx) stronger. Therefore, misidentification can be avoided.
[0039] In this embodiment, the above structure is used to achieve the effect of real-time identification of the position of the chess piece 300, and the effect of real-time identification can be output to a computer and a network. Thus, through the remote control of a robot or a manipulator by a chess player, or through the separate control of a robot or a manipulator by a computer system, the effect of remote chess playing between players can be achieved, or the effect of chess playing between a human and a robot, and between robots can be achieved.
[0040] Embodiment 2
[0041] The difference between this embodiment and Embodiment 1 is that: it further includes a pin connector. The number of PCB boards 200 is two, and the two PCB boards 200 are sequentially arranged in the frame 600 from top to bottom. The pin connector is arranged between the two PCB boards 200 and is electrically connected to the two PCB boards 200 respectively. Electronic components are arranged on the lower PCB board 200, and the sensing unit 210 is arranged on the upper PCB board 200.
[0042] Embodiment 3
[0043] The difference between this embodiment and Embodiment 1 is that: the frame 600 includes an installation step, the installation step is arranged at the upper part of the frame 600, the PCB board 200 is arranged below the installation step, and the surface layer 100 is installed on the installation step.
[0044] Specifically, the working principle and process of the present utility model are as follows:
[0045] By setting the surface layer, the PCB board, the frame, the chess piece and the sensing unit, the position of the chess piece can be identified in real time, and the effect of real-time identification can be output to a computer and a network. Then, through the remote control of a robot or a manipulator by a chess player, or through the separate control of a robot or a manipulator by a computer system, the effect of remote chess playing between players can be achieved, or the effect of chess playing between a human and a robot, and between robots can be achieved. Compared with the method of manually inputting the position information of the chess piece on a computer or identifying the image information collected by a photographic device by a computer, this structure has lower latency and cost.
[0046] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. An electronic chessboard capable of real-time sensing of the positions of chess pieces, characterized in that, It includes a surface layer, a PCB board, a housing, and chess pieces. The PCB board is installed in the housing, the surface layer covers the PCB board, the surface layer has lines, the chess pieces are made of metal materials, and the chess pieces can be placed on the surface layer. The PCB board includes a plurality of electronic components and several sensing units. The electronic components and the sensing units are both arranged on the PCB board. The sensing unit includes a generating electrode and a receiving electrode. There is a gap between the generating electrode and the receiving electrode, and the chess piece can cover the generating electrode and the receiving electrode at the same time.
2. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 1, wherein, The top surface of the generating electrode is circular, the top surface of the receiving electrode is annular, the radius of the circle of the generating electrode is smaller than the inner diameter of the annulus of the receiving electrode, and the generating electrode is arranged inside the receiving electrode.
3. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 1, characterized in that, The number of the PCB boards is one, the electronic components are arranged on the bottom surface of the PCB board, and the sensing units are arranged on the top surface of the PCB board.
4. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 1, wherein It further includes a pin connector. The number of the PCB boards is two. The two PCB boards are arranged in the housing from top to bottom in sequence. The pin connector is arranged between the two PCB boards and is electrically connected to the two PCB boards respectively. The electronic components are arranged on the lower PCB board, and the sensing units are arranged on the upper PCB board.
5. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 1, wherein, The surface layer is made of materials such as glass, acrylic, or plastic film.
6. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 1, wherein, The surface layer is detachably connected to the PCB board and the housing.
7. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 6, wherein, The surface layer includes a plurality of insertion blocks. The insertion blocks are arranged on the bottom surface of the surface layer. Both the housing and the PCB board include a plurality of insertion holes. The insertion holes are arranged at the upper parts of the housing and the PCB board, and the insertion blocks can be inserted into the insertion holes.
8. The electronic chessboard capable of real-time sensing of the positions of chess pieces according to claim 6, characterized in that, The housing includes an installation step. The installation step is arranged at the upper part of the housing. The PCB board is arranged below the installation step, and the surface layer is installed on the installation step.