CN114130000A

CN114130000A - Amusement apparatus

Info

Publication number: CN114130000A
Application number: CN202111497475.2A
Authority: CN
Inventors: 武建峰; 代明; 杜修富
Original assignee: Quanzhou Kuntaixin Microelectronic Technology Co ltd
Current assignee: Quanzhou Kuntaixin Microelectronic Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-03-04

Abstract

The invention relates to the field of entertainment, and provides an entertainment tool which comprises a base body and an article, wherein the base body is provided with an identification position, and the article is detachably matched with the identification position in a preset posture; the article is provided with a permanent magnet, and the matrix is provided with a magnetic sensor at the position corresponding to the identification position; the magnetic sensors can be used for detecting the direction of a magnetic field at the position of the magnetic sensors, for the same identification position, when an article is matched with the identification position, the direction of the magnetic field generated by the corresponding permanent magnet at the corresponding magnetic sensor is a first direction, and the first directions corresponding to any two articles are different. The invention can realize the identification of the article type at the identification position only by correspondingly arranging one magnetic sensor at each identification position, is beneficial to reducing the type and the number of the sensors and is beneficial to simplifying the structure of the entertainment appliance.

Description

Amusement apparatus

Technical Field

The invention relates to the field of entertainment, in particular to an entertainment tool.

Background

The electronic chessboard has the advantages of an offline entity chessboard and an online APP chessboard, can provide the user with experience of the entity chessboard, can also apply various intelligent playing methods in the APP, and is widely applied to remote teaching, single-person breakthrough and other application occasions.

Taking chess/chess as an example, common electronic chessboards include the following two types:

according to one scheme, Hall sensors are arranged on a chessboard, permanent magnets are arranged on chesses, the Hall sensors are used for sensing whether chesses exist in a chess position or not, the type of the corresponding chesses is determined through chess playing rules and a chess playing track memorizing mode, and relevant published patent documents are CN101721804B, CN201889059U, CN205042085U, CN205730273U and CN 105709409A.

In another scheme, technologies such as radio frequency identification, optical identification, magnetic coding array and the like are additionally adopted to identify the types of the chess pieces, for example, CN102872586B adopts optical coding to identify the types of the chess pieces, CN111617462A/CN202983151U adopts radio frequency technology to identify the types of the chess pieces, CN2523473Y adopts reflective identification of the types of the chess pieces, and CN110478887A adopts a magnetic coding array mode to identify the types of the chess pieces.

Further, chinese patent application publication No. CN106405454A discloses a magnetic angle sensing system, which detects an angular position of a magnet by sensing a magnetic field of the magnet by a magnetic angle sensor, and fig. 1 and 4 of which show two different relative positional relationships of the magnetic angle sensor and the magnet, respectively.

For the scheme of determining the type of the corresponding chessman by the chessman moving rule and the mode of memorizing the chessman moving track, the scheme is usually only suitable for the condition of determining the initial position of the chessman, which greatly limits the use of the electronic chessboard by users, so that the users cannot independently place residual games, and on the other hand, the scheme is not suitable for chessman with uncertain initial positions of the chessman.

For the scheme of additionally adopting technologies such as radio frequency identification, optical identification, magnetic coding array and the like to identify the types of the chess pieces, the scheme needs to adopt sensors which are several times as many as the number of chess positions, and the number of the sensors is more, so that the cost of the electronic chessboard is higher, and the structure is more complex; for example, the scheme of radio frequency identification often needs to set a magnetic sensor to sense whether the chessman is located at the chess falling position, a radio frequency identification module and a magnetic sensor need to be set at each chess falling position, and the electronic chessboard has more sensors/identification modules, which results in higher cost and more complex structure.

Disclosure of Invention

The object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide an amusement device with a simple structure, which can identify the type of an article and uses a small amount of sensors.

The entertainment tool provided by the invention comprises a base body and articles, wherein the base body is provided with an identification position, the articles can be detachably matched with the identification position in a preset posture, and the same identification position is matched with one article at most at the same time; the article is provided with a permanent magnet, and the matrix is provided with a magnetic sensor at the position corresponding to the identification position; the magnetic sensors can be used for detecting the direction of a magnetic field at the position of the magnetic sensors, for the same identification position, when the identification position is matched with an article, the direction of the magnetic field generated by the corresponding permanent magnet at the corresponding magnetic sensor is a first direction, and the first directions corresponding to any two articles are different; or the magnetic sensors can be used for detecting the component direction of the magnetic field at the position of the magnetic sensors on the preset plane, for the same identification position, when the identification position is matched with an article, the component direction of the magnetic field generated by the corresponding permanent magnet at the corresponding magnetic sensor on the preset plane is the second direction, and the second directions corresponding to any two articles are different.

Therefore, the entertainment tool can identify the types of the articles matched with the corresponding identification positions according to the direction of the magnetic field detected by the magnetic sensor, and accurately identify the types of the articles, and each identification position of the entertainment tool can identify the types of the articles matched with the identification position only by correspondingly arranging one magnetic sensor, so that the types and the number of the sensors are reduced, and the structure of the entertainment tool is simplified; particularly, in the scheme that the second directions corresponding to any two articles are different, two-axis magnetic sensors can be selected to detect each second direction, and the article types can be identified according to the detected second directions, so that the magnetic sensor can be the same as the widely-used magnetic knob, namely, the present invention can identify the article types by using the existing general magnetic sensor, thereby being beneficial to improving the universality of the magnetic sensor, reducing the use cost of the magnetic sensor and improving the economy of the entertainment appliance.

A two-axis magnetic sensor, that is, a magnetic sensor capable of detecting magnetic field components in two directions perpendicular to each other, thereby realizing detection of a component in a plane parallel to the two directions.

It should be noted that, unless otherwise specified, the direction of the magnetic field in the present invention may be a vector direction of the magnetic field, or may be a linear direction parallel to the magnetic field vector.

The base body and the object are matched to form a limiting position structure, the limiting position structure limits the object to the identification position in a preset posture, and the limiting position structure limits the object to rotate relative to the base body.

The further scheme is that the limiting structure comprises a concave-convex matching structure; and/or the defining bit structures comprise magnetic locating structures.

Another preferred scheme is that the entertainment tool is a chess tool, a chessboard of the chess tool is a substrate, the chessmen of the chess tool are articles, and the chess falling position of the chessboard is an identification position; or the entertainment appliance is a educational stationery, the article is a movable block representing letters, or the article is a movable block representing numbers/operators.

Therefore, in the scheme that the entertainment tool is a chess tool, the chess falling position is the position used for falling chess on the chessboard in the normal chess playing process, so that the chess tool disclosed by the invention can realize online and offline cooperative chess playing after being connected to the network/APP, not only can have the experience of the solid chessboard, but also can realize playing in different places, such as online playing, online teaching and the like by adopting the solid chessboard, and the chess tool disclosed by the invention identifies the types of the chess pieces and does not depend on chess playing rules and memorizes chess playing tracks, so that the chess tool disclosed by the invention can be suitable for chess types with uncertain initial positions of the chess pieces, such as military flags, is more widely applicable, and can be suitable for playing games/teaching in incomplete games and the like, and is favorable for expanding the application range and flexibility of the chess tool.

In the scheme that the entertainment tool is the educational stationery, the entertainment tool can be used for helping children to learn foreign languages/pinyin/arithmetic after combining operation processing and voice broadcasting/digital display, compared with the learning mode of adopting a tablet personal computer and the like, the mode is beneficial to increasing the interest of the children in foreign language/pinyin/arithmetic learning, is beneficial to the pleasure learning of the children, can prevent the children from contacting the computer/mobile phone prematurely, prevents the children from being enthusiastic in the virtual world of the computer/mobile phone, and is beneficial to the healthy growth of the children.

Still another preferred scheme is that the amusement apparatus includes a magnetic induction switch provided on the base and an induction magnet provided on the article, the magnetic induction switch corresponds to the identification position, and when the magnetic induction switch is triggered by the induction magnet, it is determined that the corresponding identification position is matched with the article.

Therefore, the entertainment tool can sense whether the corresponding identification position is matched with the article or not through whether the magnetic induction switch is triggered or not, so that the entertainment tool can start to detect the type of the article when the detected corresponding identification position is matched with the article, and the wrong detection result is avoided; when the article having an abnormal engagement in the identification position is present after the state presenting means is combined, the operator can present the article from the state presenting means, and can place the article in the engagement state with the corresponding identification position by the operation of the operator.

The further scheme is that the identification position corresponds to a first visual identification, the article is provided with a second visual identification, and the combination of the second visual identification of the article and the corresponding first visual identification indicates that the article and the corresponding identification position are in a matching state.

Therefore, the operator can match the article to the identification position through the corresponding relation between the first visual identification and the second visual identification.

In a further preferred embodiment, the direction from the south pole to the north pole of the permanent magnet is a fourth direction, and for the same identification position, the fourth direction of the corresponding permanent magnet is perpendicular to the third direction when each article is matched with the identification position, and the fourth directions corresponding to any two articles are different.

It can be seen from the above that, when the article is matched with the identification position, the directions of the magnetic fields at the positions opposite to the central position of the permanent magnet along the third direction are all perpendicular to the third direction, that is, the directions of the magnetic fields at the positions opposite to the central position of the permanent magnet along the third direction are all along the same plane, so that the magnetic sensor can be arranged at one side of the permanent magnet along the third direction, the plane perpendicular to the third direction is taken as a preset plane, the component directions of the magnetic fields on the preset plane are detected by the two-axis magnetic sensor, and the article type at the corresponding identification position is identified according to the directions of the magnetic fields detected by the two-axis magnetic sensor, therefore, on the one hand, the invention can adopt the same type of magnetic sensor with the widely used magnetic knob, that is, the invention can realize the identification of the article type by adopting the existing general magnetic sensor, and is beneficial to the improvement of the universality of the magnetic sensor, the use cost of the magnetic sensor is reduced, and the economy of the entertainment tool is improved; on the other hand, at this time, the direction of the magnetic field at the magnetic sensor is along the plane (the preset plane) perpendicular to the third direction, and the component size of the magnetic field in the third direction is almost zero, so that the identification precision is not reduced due to neglecting the magnetic field component perpendicular to the preset plane, and the accuracy of detecting and identifying the type of the article by using the two-axis magnetic sensor is improved.

The magnetic sensor is a three-axis magnetic sensor, the three-axis magnetic sensor can be used for detecting the size of a magnetic field, and the central position of the permanent magnet of the article is opposite to the corresponding magnetic sensor along a third direction; when the component size of the magnetic field detected by the magnetic sensor in the third direction is greater than or equal to a preset first threshold value, determining that the corresponding identification bit is abnormally matched with the article; or when the included angle between the direction of the magnetic field detected by the magnetic sensor and the third direction exceeds the range of the preset included angle, determining that the corresponding identification position is abnormally matched with the article.

As seen from the above, since the fourth direction is perpendicular to the third direction when the article is fitted to the identification position, and since the center positions of the corresponding magnetic sensors and the corresponding permanent magnets are opposite to each other in the third direction, theoretically, the direction of the magnetic field at the magnetic sensors should be perpendicular to the third direction, and the component of the magnetic field at the magnetic sensors in the third direction should be zero; on the basis, in practice, the component size of the magnetic field detected by the magnetic sensor in the third direction is also significantly smaller than the component size of the magnetic field in the direction perpendicular to the third direction, and the included angle between the magnetic field detected by the magnetic sensor and the third direction is close to 90 °, so that if the included angle between the magnetic field detected by the magnetic sensor and the third direction is too far away from 90 ° (for example, more than 5 °), or the component of the magnetic field detected by the magnetic sensor in the third direction is too large (greater than or equal to the preset first threshold), it indicates that the item at the corresponding identification position is abnormally matched with the corresponding identification position at this time.

When the matching of the article and the identification position is abnormal, the direction of the magnetic field detected by the magnetic sensor and the first direction corresponding to the corresponding article possibly have large difference, and the identification result of the article type can be wrong at the moment.

In addition, the magnetic sensor is used for detecting whether the article is abnormally matched with the identification position or not and identifying the type of the article, so that the scheme does not need to additionally arrange the sensor to detect whether the article is abnormally matched with the identification position or not, the number of the sensors is favorably reduced, the structure of the scheme is favorably simplified, and the economy of the scheme is improved.

The abnormal matching state of the article and the identification position may be, for example: the position of the article is shifted from the position of engagement with the recognition site, and it may be that the posture of the article is inclined from the posture of engagement with the recognition site.

In the present invention, the expressions relating to the engagement of an article with an identification position and the engagement of an article with an identification position refer to the engagement state of an article with a corresponding identification position when the article type can be identified by a corresponding magnetic sensor, except for the meaning of specifically describing the abnormal engagement or the abnormal engagement state.

According to a further scheme, when the included angle between the direction of the magnetic field detected by the magnetic sensor and the third direction exceeds the range of the preset included angle and the size of the magnetic field detected by the magnetic sensor is larger than or equal to a preset second threshold value, the corresponding identification position is determined to be abnormally matched with the article.

Therefore, the situation that the corresponding identification position is matched with the article or the corresponding identification position is matched with the article abnormally due to the fact that the magnetic sensor detects other unrelated magnetic fields can be avoided.

The entertainment appliance further comprises a state prompting unit which is in communication connection with the magnetic sensor; and when the identification position is determined to be abnormally matched with the article, the corresponding state prompt unit sends prompt information.

It is thus obvious that like this when discernment position and article cooperation are unusual, operating personnel can obtain the feedback from state prompt unit, is favorable to operating personnel to hold article and discerns whether the position cooperates unusually, is favorable to promoting user experience.

The further scheme is that the device comprises a state detection unit, wherein the state detection unit comprises a magnetic induction switch arranged on a base body and an induction magnet arranged on an article, the magnetic induction switch corresponds to the identification position, and when the magnetic induction switch is triggered by the induction magnet, the corresponding identification position is determined to be matched with the article.

Therefore, whether the article and the identification position are matched abnormally is detected by additionally arranging the state detection unit.

The magnetic sensor can be used for detecting the vector direction of a magnetic field at the position of the magnetic sensor, wherein the first direction is the vector direction, and the second direction is the vector direction; or the magnetic sensor can be used for detecting the linear direction of the magnetic field at the position of the magnetic sensor, wherein the first direction is the linear direction, and the second direction is the linear direction.

In a further aspect, the magnetic sensor includes a magnetic sensor chip.

The further proposal is that the magnetic sensor is a two-axis magnetic sensor; therefore, the invention can adopt the same magnetic sensor as the widely used magnetic knob, namely the invention can realize the identification of the article types by adopting the existing universal magnetic sensor, is beneficial to improving the universality of the magnetic sensor, is beneficial to reducing the use cost of the magnetic sensor and is beneficial to improving the economy of the entertainment appliance.

Further, the article can be detachably matched with the corresponding identification position along the third direction.

The further scheme is that the substrate is provided with a first matching surface at the identification position, the article is provided with a second matching surface, the first matching surface is attached to the second matching surface of the corresponding article, and the normal of the first matching surface and the normal of the second matching surface of the corresponding article are both along the third direction.

In another preferred embodiment, the magnetic sensor detects the actual direction of the magnetic field, and the entertainment apparatus uses the article type corresponding to the first direction matching the actual direction as the article type matching the corresponding identification position; the magnetic sensor detects the actual component direction of the magnetic field in the preset plane, and the entertainment tool takes the article type corresponding to the second direction matched with the actual component direction as the article type matched with the corresponding identification position.

In a further preferred embodiment, for the same identification position, when an article is fitted to the identification position, the possible range of the magnitude of the magnetic field detected by the corresponding magnetic sensor is a first preset magnitude interval, and the possible range of the direction of the magnetic field detected by the corresponding magnetic sensor is a first preset direction interval; when the actual direction and the actual size of the magnetic field detected by the magnetic sensor are sequentially located in a first preset direction interval and a first preset size interval corresponding to the same article type, the entertainment tool determines that the article is matched with the identification position, and determines that the article at the corresponding identification position belongs to the article type corresponding to the interval where the actual direction and the actual size are located.

In another preferred embodiment, for the same identification position, when the identification position is matched with an article, the possible range of the component size of the magnetic field detected by the corresponding magnetic sensor in the preset plane is a second preset size interval, and the possible range of the proper amount of the magnetic field detected by the corresponding magnetic sensor in the component direction of the preset plane is a second preset direction interval; when the actual component direction and the actual component size of the magnetic field detected by the magnetic sensor on the preset plane are sequentially located in a second preset direction interval and a second preset size interval corresponding to the same article type, the entertainment tool determines that the article is matched with the identification position, and determines that the article at the corresponding identification position belongs to the article type corresponding to the interval where the actual component direction and the actual component size are located.

Therefore, whether the identification position is matched with the article or not is judged according to the size and the direction of the magnetic field detected by the magnetic sensor, the type of the article matched with the identification position is obtained, and the accuracy of identifying the type of the article by the entertainment tool is improved.

The entertainment appliance is provided with a state prompting unit corresponding to the identification bit, and the state prompting unit is in communication connection with the corresponding magnetic sensor; when the identification position is matched with an article, the corresponding state prompting unit prompts that the state is normal; and/or when the actual size/the actual component size is larger than or equal to a preset second threshold value and the article is not matched with the identification position, the corresponding state prompting unit prompts that the state is abnormal.

Therefore, the operation personnel can intuitively master whether the article is matched with the identification position abnormally.

The state prompting unit is a state indicating lamp/sound prompting device; when the identification position is determined to be matched with an article, the corresponding state prompting unit prompts that the article is in a first normal state; and when the actual size/the actual component size is smaller than a second threshold value, the corresponding state prompting unit prompts that the state is a second normal state.

Drawings

Figure 1 is a partial block diagram of a first embodiment of the present invention entertainment appliance.

Figure 2 is an exploded view of a portion of a first embodiment of the present invention.

Figure 3 is a cross-sectional view of a playing piece in a first embodiment of the amusement device of the present invention in cooperation with a playing position.

FIG. 4 is a schematic view of the first embodiment of the game piece "Red commander" of the amusement apparatus of the present invention.

Figure 5 is a schematic view of a pawn "hong shi" according to a first embodiment of the amusement device of the invention.

Figure 6 is a schematic view of a pawn "red phase" in a first embodiment of the amusement device according to the invention.

Figure 7 is a cross-sectional view of a playing piece in an alternative to the second embodiment of the amusement device of the present invention in cooperation with a playing position.

Figure 8 is a schematic top view of a second embodiment of the present invention entertainment appliance.

Detailed Description

First embodiment

Fig. 1 to 7 of the present embodiment adopt a unified spatial rectangular coordinate system (right-hand system) to represent the relative positional relationship between the features of the present embodiment, wherein the positive direction of the Z axis is vertically upward.

The entertainment appliance of the present embodiment is a chess, please refer to fig. 1 and 2, the chess includes a chessboard 1 (example of a base) and chess pieces 2 (example of articles), the chessboard 1 includes a bottom case 11, a panel 13 and a circuit board 12, the panel 13 is located on the upper side (Z-axis positive side) of the bottom case 11, the bottom case 11 and the panel 13 enclose a mounting cavity 14, and the circuit board 12 is fixed in the mounting cavity 14.

Referring to fig. 1 and 2, an upper main surface of the panel 13 is a working surface 131, a normal line of the working surface 131 is along a vertical direction (an example of a third direction), nine rows of chess positions (an example of identification positions) are distributed on the working surface 131 along an X-axis direction, each row of chess positions has ten chess positions distributed along a Y-axis direction, and nine rows of chess positions are distributed in an array manner.

The chess pieces 2 comprise twelve types of red commander 2a (shown in figure 4), red soldier 2b (shown in figure 5), red photo 2c (shown in figure 6), red horse, red car, red cannon, red soldier, black elephant, black horse, black cannon and black pawn, the chess pieces 2 can be detachably matched with falling positions of the chessboard 1, and the content and color of marks such as 'commander' and 'soldier' on the chess pieces 2 are visual type marks of the chess pieces 2.

Ninety magnetic sensors 121 distributed according to ten rows and nine columns are arranged on the circuit board 12, each magnetic sensor 121 corresponds to each chess falling position one by one, and the magnetic sensors 121 are positioned right below the corresponding chess falling positions, namely the magnetic sensors 121 are positioned on the negative direction side of the Z axis of the corresponding chess falling positions.

In this embodiment, the magnetic sensor 121 can be configured to detect a magnetic vector direction on an XOY plane where the magnetic sensor 121 is located, and the magnetic sensor 121 can detect vector components of a magnetic field in the XOY plane, so that a vector component direction of the magnetic field vector at the magnetic sensor 121 on the XOY plane can be obtained through calculation. Specifically, the magnetic sensor 121 of the present embodiment includes a magnetic sensing chip, which is also commonly referred to as a magnetic encoding chip, a magnetic encoder chip, a magnetic encoding chip, a magnetic angle sensor, etc., for example, the magnetic angle sensor in the invention patent applications with publication numbers CN109855668A and CN106405454A, and for example, the magnetic encoding chip in the utility model patent with publication number CN 206455664U.

The chess pieces 2 are matched with the chess falling positions to be provided with limiting position structures, the limiting position structures limit the chess pieces 2 at the corresponding chess falling positions in preset postures (such as the postures shown in figure 1), and the limiting position structures limit the chess pieces 2 to rotate relative to the chessboard 1; specifically, the cross-sectional profile of the normal of the chess piece 2 along the vertical direction is a circle with a flat cut, the flat cut of the chess piece 2 is located at the negative end of the Y axis, each chess-falling position is provided with a groove 132, the cross-sectional profile of the normal of the groove 132 along the vertical direction is a circle with a flat cut, the cross-sectional profile of the normal of the groove 132 along the vertical direction is matched with the cross-sectional profile of the normal of the chess piece 2 along the vertical direction, the matching of the chess piece 2 and the corresponding chess-falling position is realized when the chess piece 2 is placed in the groove 132, and the groove 132 limits the rotation of the chess piece 2 relative to the chessboard 1.

The groove 132 and the flat notch of the playing piece 2 form the position-limiting structure of this embodiment, alternatively, in other embodiments of the present invention, the position-limiting structure may also be a concave-convex matching structure with other shapes.

The bottom surface of recess 132 is first fitting surface, and the bottom surface of piece 2 is the second fitting surface, and first fitting surface is the plane of normal line along vertical direction with the second fitting surface that corresponds piece 2, and the second fitting surface of piece 2 is laminated with the first fitting surface of recess 132 that corresponds, is favorable to promoting the piece 2 and the cooperation stability of falling the chess position like this.

Alternatively, in other embodiments of the present invention, the limiting structure may also be a magnet positioning structure, and the solution of the magnet positioning structure may be set according to the prior art, for example, according to the utility model with publication number CN 210582466U.

Referring to fig. 3, the chess piece 2 is provided with permanent magnets 21, such as the permanent magnet 21a of the "red commander" 2a shown in fig. 4, the permanent magnet 21b of the "red soldier" 2b shown in fig. 5, and the permanent magnet 21c of the "red phase" 2c shown in fig. 6, when the chess piece 2 is fitted in the chess-falling position, the corresponding magnetic sensor 121 is located right below the chess piece 2, preferably, the corresponding magnetic sensor 121 is located right below the center position of the permanent magnet 21 of the chess piece 2, the direction from the south pole to the north pole of the permanent magnet 21 is a fourth direction a, and the fourth direction a of each permanent magnet 21 is perpendicular to the vertical direction, that is, the fourth direction a of each permanent magnet 21 is along the horizontal direction.

For the same game playing position, the fourth directions a corresponding to the game playing positions of the different chessmen 2 of the same kind are the same, and the fourth directions a corresponding to the different chessmen 2 when matching with the game playing positions are different, please refer to fig. 4 to 6, for example, the fourth direction a1 corresponding to "red commander" 2a is the same as the X-axis forward direction, the rotation angle of the fourth direction a2 corresponding to "red commander" 2b is 25 ° when rotating in the counterclockwise direction to the X-axis forward direction, the rotation angle of the fourth direction A3 corresponding to "red phase" 2c is 50 ° … … when rotating in the counterclockwise direction to the X-axis forward direction, and so on, the included angle of at least 25 ° is formed between the fourth directions a corresponding to the different chessmen 2.

Correspondingly, for the same chess-falling position, when the chess pieces 2 are matched with the chess-falling position, the vector direction of the magnetic field generated by the corresponding permanent magnet 21 at the corresponding magnetic sensor 121 is the first direction B, the first directions B corresponding to the different chess pieces 2 are the same, and an included angle is formed between the first directions B corresponding to any two kinds of chess pieces 2, that is, the first directions B corresponding to each kind of chess pieces 2 are different from each other.

Similarly, since the fourth direction a of each permanent magnet 21 is set to be perpendicular to the vertical direction, and the center position of each permanent magnet 21 is set to be opposite to the corresponding magnetic sensor 121 along the vertical direction, the magnetic field vector direction at the magnetic sensor 121 is parallel to the XOY plane at this time, and the magnetic field vector direction at the magnetic sensor 121 is the same as the component direction of the magnetic field vector direction on the XOY plane at this time; therefore, for the same chess-falling position, if the vector component direction of the magnetic field generated by the corresponding permanent magnet 21 at the corresponding magnetic sensor 121 when the chess pieces 2 are matched with the chess-falling position on the XOY plane (an example of a preset plane) is set as the second direction, the second directions corresponding to the different chess pieces 2 are the same, and an included angle is formed between the second directions corresponding to any two kinds of chess pieces 2, that is, the second directions corresponding to the different chess pieces 2 are different from each other.

Therefore, the present embodiment can identify the type of the chess piece 2 at the corresponding chess-dropping position according to the component direction of the magnetic field vector detected by the magnetic sensor 121 in the XOY plane, specifically, the magnetic sensor 121 of the present embodiment detects the actual component direction of the magnetic field vector at the position of the magnetic sensor in the XOY plane, and the chess piece 2 matched with the corresponding chess-dropping position is the type of the chess piece corresponding to the second direction matched with the actual component direction. Alternatively, in another embodiment of the present invention, a three-axis magnetic sensor may be used instead of the two-axis magnetic sensor of this embodiment, the magnetic sensor 121 of this solution detects the actual direction of the magnetic field vector, and the type of the chess piece corresponding to the first direction B matching with the actual direction is the type of the chess piece matching with the corresponding dropping position.

For example, in this embodiment, the first direction/the second direction corresponding to the "red commander" 2a is along the negative direction of the X axis, that is, the opposite direction of the fourth direction a1 corresponding to the "red commander" 2a, the first direction/the second direction corresponding to the "red commander" 2b is along the opposite direction … … corresponding to the fourth direction a2, and so on, when the corresponding magnetic sensor 121 detects that the magnetic field vector direction is along the negative direction of the X axis, the corresponding pawn 2 can be determined as the "red commander" 2a, and when the corresponding magnetic sensor 121 detects that the magnetic field vector direction is along the opposite direction of the fourth direction a2, the corresponding pawn 2 can be determined as the "red commander" 2b, and certainly, in consideration of installation and manufacturing errors, the corresponding pawn 2 can also be determined as the "red commander" 2b when the magnetic sensor 121 detects that the included angle between the magnetic field vector direction and the negative direction of the X axis is within ± 5 °, which can allow the little deviation of the position and angle of the matching of the pawn 2 with the chess position, the matching of the chess pieces 2 and the grooves 132 can be set to be loose matching, which is beneficial to improving chess playing experience of users.

The magnetic sensor 121 of this embodiment can adopt the diaxon magnetic sensor among the current magnetism knob, detect the vector component direction of magnetic field vector on the XOY plane through the diaxon magnetic sensor, just can discern the kind of piece 2 in view of the above, be favorable to promoting the commonality of magnetic sensor 121 like this, be favorable to promoting the economic nature of this embodiment chess, and, the magnetic sensor technical maturity of current magnetism knob, be favorable to promoting the accuracy to piece kind discernment.

The center position of the permanent magnet 21 is directly opposite to the corresponding magnetic sensor 121 in the vertical direction, that is, a straight line passing through the center position of the permanent magnet 21 and in the vertical direction passes through the corresponding magnetic sensor 121.

Of course, in other embodiments of the present invention, even if the fourth direction a of the permanent magnet 21 is not perpendicular to the vertical direction, or the permanent magnet 21 and the corresponding magnetic sensor 121 are not directly opposite to each other in the vertical direction, for the same game playing position, as long as any two kinds of the playing pieces 2 have a difference in the component direction of the corresponding first direction B in the preset plane when being matched with the game playing position, that is, any two kinds of the playing pieces 2 have a difference in the corresponding second direction when being matched with the game playing position, the kind of the playing piece 2 in the corresponding game playing position can be identified according to the vector component direction of the magnetic field detected by the magnetic sensor 121 in the preset plane, and the magnetic sensor 121 can be set as a two-axis magnetic sensor. Of course, in the solution of this embodiment, since the magnetic field vector direction of each permanent magnet 21 at the corresponding magnetic sensor 121 is generally along the horizontal direction (the second direction is exactly the same as the corresponding first direction B), the vector component of the magnetic field vector in the vertical direction can be ignored, and the detection error is not easily caused, so that it is more beneficial to accurately identify the type of the chess piece 2 according to the detection signals of the two-axis magnetic sensors.

Alternatively, in another embodiment of the present invention in which the magnetic sensor employs a three-axis magnetic sensor, the fourth direction a of the magnetic sensor 121 may not be perpendicular to the vertical direction, and the magnetic sensor 121 may be offset from the projection space of the permanent magnet 21 in the vertical direction, so long as the correspondence between the first direction B corresponding to each pawn 2 and each kind of the pawn 2 is ensured, the kind of the pawn 2 at the corresponding chess position can be identified according to the magnetic field vector direction detected by the magnetic sensor 121.

Because the type of each piece 2 can be detected, the chess of the embodiment can be applied to the practice of the incomplete game of online-offline linkage, the application range of the chess of the embodiment can be expanded, and the user can use the chess of the embodiment freely; moreover, each chess falling position of the embodiment can realize the identification of the type of the chess pieces 2 only by correspondingly arranging one magnetic sensor 121, thereby being beneficial to simplifying the structure of the chess.

Further, although the foregoing solution can identify the type of the chess piece 2 by the detection result of the corresponding magnetic sensor 121 when the chess piece 2 is in the matching state with the chess-falling position, when the matching of the chess piece 2 and the chess-falling position is abnormal (for example, the position of the chess piece 2 is shifted from the position when matching with the chess-falling position, or the posture of the chess piece 2 is inclined from the posture when matching with the chess-falling position), the type of the chess piece 2 may be identified by the detection result of the magnetic sensor 121, so preferably, the magnetic sensor 121 of the present embodiment can detect the magnitude of the magnetic field vector, the chess piece 2 of the present embodiment is identified by the magnitude and direction of the magnetic field vector detected by the magnetic sensor 121, specifically, for the same chess-falling position, when the chess piece 2 is matched with the chess-falling position, the possible range of the magnitude of the component of the magnetic field vector detected by the corresponding magnetic sensor 121 in the XOY plane is the second preset magnitude interval, the possible range of the component direction of the appropriate amount of the magnetic field detected by the corresponding magnetic sensor on the XOY plane is a second preset direction interval (the possible range of the second direction); when the actual component direction and the actual component size of the magnetic field vector detected by the magnetic sensor 121 on the XOY plane of the chess are sequentially located between the second preset direction interval and the second preset size interval corresponding to the same chess piece type, the chess piece 2 is matched at the corresponding chess position, and the corresponding chess piece 2 at the chess position is determined to belong to the chess piece type corresponding to the interval between the actual component direction and the actual component size. Therefore, the detection result of the magnetic sensor when the chess piece 2 is abnormally matched with the chess falling position is favorably used for identifying the type of the chess piece, and the error of type identification of the chess piece 2 caused by the abnormal matching of the chess piece 2 and the chess falling position is avoided; the second preset size interval and the second preset direction interval can be obtained through experiments, and are not repeated here.

Similarly, for the same chess-dropping position, when the chess piece 2 is matched with the chess-dropping position, the possible range of the magnitude of the magnetic field vector detected by the corresponding magnetic sensor is a first preset magnitude interval, and the possible range of the direction of the magnetic field vector detected by the corresponding magnetic sensor is a first preset direction interval (the possible range of the first direction B); when the actual direction and the actual size of the magnetic field vector detected by the magnetic sensor 121 of the chess are sequentially located in the first preset direction interval and the first preset size interval corresponding to the same chess piece type, the chess position is determined to be matched with the chess pieces (i.e. the chess position and the chess pieces are determined to be in a normal matching state), and the chess pieces 2 at the corresponding chess position are determined to belong to the chess piece type corresponding to the actual direction and the actual size interval.

Furthermore, the chess is provided with a state prompting unit corresponding to the chess-falling position, and the state prompting unit is in communication connection with the corresponding magnetic sensor 121; when the chess piece 2 is matched at the position where the chess is located, the corresponding state prompting unit prompts that the state is normal; when the actual size/the actual component size is larger than or equal to a preset second threshold value and the chess piece is not matched at the chess position, the corresponding state prompting unit prompts that the state is abnormal. Through the suggestion of state suggestion unit, when piece 2 was unusual with the cooperation of the chess position that falls, the personnel of playing chess can obtain the feedback from state suggestion unit, is favorable to the personnel of playing chess to hold piece 2 and whether cooperate unusually with the chess position that falls, is favorable to promoting user experience. Specifically, the state prompting unit is a state indicator light; when the chess piece 2 is matched at the position where the chess is located, the corresponding state indicating lamp is turned on to be a green lamp (indicating as an example of a first normal state); when the actual size/the actual component size is larger than or equal to the second threshold value and the chess piece 2 is not matched at the chess position, the corresponding status indicator lamp is lighted to be a red lamp (indicating as an example of abnormal status); when the actual size/actual component size is smaller than the second threshold, the corresponding status indicator lamp is turned off (indicated as an example of the second normal state).

When the actual magnitude/actual component magnitude of the magnetic field vector detected by the magnetic sensor 121 is greater than or equal to the second threshold, it indicates that the chess piece 2 is located in the region close enough to the corresponding chess-falling position, and certainly, the region is greater than the region corresponding to the chess-falling position, and at this time, the chess piece 2 may be in a matching state with the corresponding chess-falling position, and may also be in abnormal matching with the corresponding chess-falling position, so that the type of the chess piece 2 cannot be normally identified, specifically, the value of the second threshold may be determined through experiments, and is not described herein again.

Optionally, in other embodiments of the present invention, the status prompting unit may also include a sound prompting device such as a speaker or a buzzer, the sound prompting device and the status indicator light may be used simultaneously or alternatively, and when the matching between the chess piece 2 and the chess position is abnormal, the sound prompting device sounds to prompt the player; and/or when the piece is in the cooperation state with the chess position that falls in correspondence, can carry out normal discernment to the kind of piece, the mode that sends sound through the sound suggestion device reminds the chess player to know.

Optionally, in other embodiments of the present invention, the magnetic sensor 121 is only used to detect a linear direction of the magnetic field vector, and when the chess pieces are matched with the chess-playing position, the linear directions (another example of the first direction) of the magnetic field vectors corresponding to any two kinds of chess pieces 2 have a difference, so that the types of the chess pieces can be identified according to the linear direction of the magnetic field vector detected by the magnetic sensor 121; similarly, the second direction may also be a linear direction, and when the second directions are not parallel to each other, the type of the chess pieces can be identified according to the linear direction in which the magnetic field vector detected by the magnetic sensor is located.

Optionally, in other embodiments of the present invention, the amusement tool of the present invention may also be other chess such as military chess, animal chess, etc., and particularly, the amusement tool of the present invention may also be chess with uncertain initial placement positions of the chess pieces, which can also realize online and offline linked playing, and realize remote cooperative playing.

Second embodiment

The entertainment appliance of the present embodiment is a chess, and the difference between the present embodiment and the first embodiment is that in the present embodiment, when the center position of the permanent magnet 21 of the chess piece 2 is opposite to the corresponding magnetic sensor 121 along the Z-axis direction, the magnetic sensor 121 adopts a three-axis magnetic sensor, and the three-axis magnetic sensor can detect vector components of a magnetic field vector in three directions perpendicular to each other, for example, can detect vector components of a magnetic field in the X-axis direction, the Y-axis direction and the Z-axis direction, so that the magnetic field vector direction at the magnetic sensor 121 can be obtained through calculation; when the component size of the magnetic field detected by the magnetic sensor 121 in the Z-axis direction is greater than or equal to a preset first threshold value, determining that the matching between the chess piece 2 and the chess-falling position is abnormal; or when the included angle between the magnetic field vector direction detected by the magnetic sensor 121 and the Z-axis direction exceeds the preset included angle range, it is determined that the matching between the chess piece 2 and the chess-falling position is abnormal.

The three-axis magnetic sensor can be set according to the prior art, for example, the three-axis magnetic sensor in the chinese patent application with publication number CN108205119A, or the single-chip three-axis magnetic sensor in the chinese patent application with publication number CN103913709A or CN103105592A, or the three-axis linear magnetic sensor in the chinese patent application with publication number CN 103954920A; the magnetic sensor chip of the present embodiment may be, for example, a magnetic field sensor chip of CN 103105592A.

In the first embodiment, in the scheme of only using the first direction/the second direction to identify the kind of the chess piece, when the chess piece 2 is in the matching state with the chess falling position, the kind of the chess piece 2 can be identified through the detection result of the corresponding magnetic sensor, however, when the matching of the chess piece and the chess falling position is abnormal (for example, the position of the chess piece 2 is deviated from the position matched with the chess falling position, or the posture of the chess piece 2 is inclined from the posture matched with the chess falling position), the kind of the chess piece 2 can be identified through the detection result of the magnetic sensor 121, which may be wrong.

In order to reduce the risk of identification error caused by abnormal matching between the chess piece 2 and the chess falling position, in the embodiment, before identifying the type of the chess piece 2, whether the chess piece 2 and the chess falling position are abnormally matched or not is identified, specifically, when the magnitude of the magnetic field vector in the Z-axis direction detected by the magnetic sensor 121 is greater than or equal to a first threshold value, it indicates that the chess piece with abnormal matching at the corresponding chess falling position is present, that is, it indicates that the type of the chess piece at the corresponding chess falling position is easy to be error according to the detection result of the magnetic sensor 121 at the moment; similarly, when the included angle between the magnetic field vector direction detected by the magnetic sensor and the Z axis exceeds the preset included angle range, it is indicated that the type of the chess pieces at the corresponding chess-falling position is easy to make mistakes according to the detection result of the magnetic sensor. The first threshold and the preset included angle range may be specifically set on the basis of an experiment, for example, when the groove is adopted as the limit structure in cooperation of the chess piece 2 and the chess position, as long as the chess piece is fitted in the groove, the magnetic field vector in the Z-axis direction detected by the corresponding magnetic sensor is smaller than the first threshold, and the included angle between the magnetic field vector direction detected by the magnetic sensor and the Z-axis is within the preset included angle range.

In this embodiment, when the chess pieces are in a matching state with the chessboard, because the fourth direction a corresponding to the chess piece 2 is perpendicular to the Z-axis direction, and the center positions of the magnetic sensor 121 and the corresponding permanent magnet 21 are opposite to each other along the Z-axis direction, the magnetic field vector direction detected by the magnetic sensor 121 at this time should be perpendicular to the Z-axis direction, and the magnetic field vector magnitude detected by the magnetic sensor in the Z-axis direction should be zero; on the basis, considering that the matching of the chess pieces 2 and the chess placing positions allows certain errors, in practice, the component size of the magnetic field vector detected by the magnetic sensor 121 in the Z-axis direction is also significantly smaller than the component size of the magnetic field vector in the direction perpendicular to the Z-axis direction, the component size of the magnetic field vector detected by the magnetic sensor 121 in the Z-axis direction should be smaller than the allowable range (smaller than the first threshold), the angle between the direction of the magnetic field vector detected by the magnetic sensor 121 and the Z-axis direction should be close to 90, thus if the magnetic field vector direction detected by the magnetic sensor 121 is at an angle outside the preset angle range (e.g. 90 ° ± 3 °) with respect to the Z-axis direction, or the component size of the magnetic field vector detected by the magnetic sensor 121 in the Z-axis direction is too large (greater than or equal to the preset first threshold), it indicates that the matching between the chess piece 2 at the corresponding chess-playing position and the corresponding chess-playing position is abnormal. When piece 2 and the cooperation of the position of falling the chess are unusual, magnetic field vector direction that detects according to magnetic sensor 121 probably has great difference with the second direction that this piece 2 corresponds, the identification result to the kind of piece 2 probably makes mistakes this moment, therefore this scheme still detects piece 2 and the cooperation of the position of falling the chess is unusual, be favorable to avoiding like this to use the testing result of the magnetic sensor 121 who corresponds as the discernment of piece kind when piece 2 and the cooperation of the position of falling the chess are unusual, reduce because piece 2 and the cooperation of the position of falling the chess unusual and lead to the risk of making mistakes to the kind discernment of piece 2. In addition, the magnetic sensor of this scheme both has been used for detecting piece 2 and whether cooperate unusually with the chess position of falling, is used for discerning the kind of piece 2 again, and this scheme need not additionally set up the sensor like this and detects piece 2 and whether cooperate unusually with the chess position of falling, is favorable to saving the quantity of sensor, is favorable to simplifying the structure of this scheme, promotes the economic nature of this scheme.

Further, if the corresponding chess position is judged to have the chess piece 2 with abnormal matching only according to whether the included angle between the direction of the magnetic field detected by the magnetic sensor 121 and the direction of the Z axis exceeds the preset included angle range, when no chess piece 2 exists near the corresponding chess position, the corresponding magnetic sensor is possibly mistakenly judged to have the chess piece 2 matched with the corresponding chess position because of the interference of other unrelated magnetic fields, or mistakenly judged to have the chess piece 2 with abnormal matching with the corresponding chess position; therefore, it is preferable to determine that the matching between the corresponding chess position and the chess piece 2 is abnormal when the included angle between the direction of the magnetic field detected by the magnetic sensor 121 and the Z-axis direction exceeds the preset included angle range and the magnitude of the magnetic field detected by the magnetic sensor 121 is greater than or equal to the preset second threshold value. The magnetic field detected by the magnetic sensor 121 is greater than or equal to the preset second threshold value, which indicates that the corresponding chess position has the chess piece (at this time, the corresponding chess position may be in a matching state with the chess piece 2, or the corresponding chess position may be abnormal in matching with the chess piece 2), so that it can be avoided that the magnetic sensor 121 detects other unrelated magnetic fields and misjudges that the corresponding chess position is matched with the chess piece 2, or misjudges that the corresponding chess position has the abnormal chess piece 2 in matching.

Preferably, the chess further comprises a state prompting unit, and the state prompting unit is in communication connection with the magnetic sensor; when the matching between the chess position and the chess pieces 2 is determined to be abnormal, the corresponding state prompting units send out prompting information. Therefore, when the matching of the chess position and the chess pieces 2 is abnormal, the chess player can obtain feedback from the state prompting unit, the chess player can conveniently master whether the matching of the chess pieces 2 and the chess position is abnormal or not, and the user experience is improved; specifically, the status indication unit may be configured according to the first embodiment, and details are not described here.

Specifically, the step of this embodiment chess piece kind of discernment is: the first step is to acquire the actual magnitude and the actual direction of the magnetic field vector detected by the magnetic sensor 121; secondly, judging whether the actual size of the magnetic field is larger than or equal to a second threshold value, if so, executing a third step, judging whether the actual component size of the magnetic field in the Z-axis direction is larger than or equal to the first threshold value, if so, executing a fourth step, controlling a state prompting unit to send out prompting information, and prompting that the matching of the chess piece 2 and the chess-dropping position is abnormal; if the execution result of the second step is no, ending the program, or re-executing the first step, if the execution result of the third step is no, taking the type of the chess piece corresponding to the first direction B matched with the actual direction as the type of the chess piece 2 matched with the corresponding chess falling position, thereby completing the identification of the type of the chess piece 2, and of course, the state prompting unit can be controlled to send out the prompting information that the chess piece 2 and the chess falling position are in the matched state.

Optionally, referring to fig. 7, in other embodiments of the present invention, a state detection unit may be additionally disposed to detect whether the chess piece 2 and the chess-falling position are matched abnormally/normally, for example, the state detection unit includes a magnetic induction switch 122 disposed on the chessboard 12 and an induction magnet 22 disposed on the chess piece 2, the magnetic induction switch 122 corresponds to the chess-falling position, and when the magnetic induction switch 122 is triggered by the induction magnet 22, it is determined that the corresponding chess-falling position is matched with the chess piece 2; in order to avoid the interference caused by the sensing magnet 22 to the detection result of the magnetic sensor 121 and the interference caused by the permanent magnet 21 to the magnetic induction switch 122, it is preferable to arrange the sensing magnet 22 and the permanent magnet 21 separately, and arrange the magnetic induction switch 122 and the magnetic sensor 121 separately, for example, arrange the permanent magnet 21 and the sensing magnet 22 at two ends of the pawn 2; specifically, the magnetic induction switch 122 may be a hall sensor, and of course, the solution is more complex than the present embodiment due to the additional magnetic induction switch 122, and thus the solution of the present embodiment is preferably adopted; furthermore, in the scheme of detecting whether the matching between the chess piece and the chess-falling position is abnormal/normal by additionally arranging the state detection unit, the chess-falling position is correspondingly provided with the first visual identification which is positioned at the edge of the chess-falling position, the chess piece 2 is provided with the second visual identification which is positioned on the surface of the chess piece 2, when the chess piece 2 is matched with the chess-falling position, the corresponding first visual identification is just opposite to the corresponding second visual identification, the combination of the second visual identification of the chess piece 2 and the corresponding first visual identification indicates that the chess piece 2 and the corresponding chess-falling position are in the matching state, so that a position structure can be cancelled, a player places the chess piece at the corresponding chess-falling position in a preset posture through the indication of the first visual identification and the second visual identification, so that the matching between the chess piece and the corresponding chess-falling position is realized, and when the matching between the chess piece and the chess-falling position is abnormal, the chess can identify the chess, and prompt information can be sent to the chess player through the state prompt unit to prompt the chess player to place the chess pieces in a state matched with the corresponding chess falling positions in a preset posture; preferably, more than two sets of combinations of the magnetic induction switches 122 and the induction magnets 22 can be provided in the solution, and/or more than two sets of combinations of the first visual marks and the second visual marks can be provided.

The rest of this embodiment is the same as the first embodiment.

Third embodiment

Referring to fig. 8, the entertainment apparatus of the embodiment includes a base 1 'and an article 2', the base 1 'includes a housing and a circuit board, the housing includes an upper half-shell and a lower half-shell, the upper half-shell is located on an upper side of the lower half-shell, the upper half-shell and the lower half-shell enclose a mounting cavity, the circuit board is fixed in the mounting cavity, and a basic composition structure of the base 1' can be performed with reference to the first embodiment, which is not described herein again.

Five identification positions distributed along a straight line perpendicular to the vertical direction are arranged on the upper surface of the upper half shell, the articles 2 'can be detachably matched with the identification positions, each identification position is matched with one article 2' at most, a positioning groove is correspondingly arranged at each identification position, and the normal line of each positioning groove is in an isosceles triangle shape along the cross section contour shape of the vertical direction.

The number of the types of the articles 2 'is fifteen, each article 2' represents a number/operator, the fifteen numbers/operators are respectively "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "+", "-", "×", "÷" and "=", the upper surface of each article 2 'has an identifier corresponding to the number/operator, and the number/operator is identified as a visual type identifier of the article 2'.

The sectional profile of the normal line of the article 2 ' along the vertical direction is in the shape of an isosceles triangle, the sectional profile of the normal line of the article 2 ' along the vertical direction is matched with the sectional profile of the normal line of the positioning groove along the vertical direction, when the article 2 ' is matched with the identification position, the article 2 ' is placed in the corresponding positioning groove, the positioning groove limits the article 2 ' at the corresponding identification position in a preset posture, and limits the article 2 ' to rotate relative to the base body 1 '.

The circuit board is provided with five magnetic sensors which are in one-to-one correspondence with five identification positions, the article 2 ' is provided with a permanent magnet, and when the article 2 ' is matched with the identification positions, the type of the article 2 ' is identified according to the magnetic field vector direction sensed by the corresponding magnetic sensors.

Therefore, the embodiment can be used for children to learn arithmetic after combining operation processing and voice broadcasting/digital display, compared with learning modes such as a tablet personal computer, the mode is beneficial to increasing the pleasure of the children to arithmetic learning and enjoying learning of the children, and can prevent the children from contacting the computer/mobile phone prematurely, avoid the children from being enthusiastic in the virtual world of the computer/mobile phone, and be beneficial to the healthy growth of the children.

The positioning groove of the embodiment constitutes a limiting structure, optionally, in other embodiments of the invention, a special positioning protrusion may be added at the bottom of the object, the cross-sectional profile of the normal of the positioning protrusion along the vertical direction matches with the cross-sectional profile of the positioning groove, and the shape of the cross-sectional profile of the positioning groove matched with the article 2 'may also be changed, or the article 2' is limited by the matching of more than two sets of positioning protrusions and positioning grooves; in addition, the positions of the positioning protrusion and the positioning groove can be interchanged, that is, the positioning protrusion can be arranged at the identification position of the substrate 1'.

Alternatively, in other embodiments of the invention, the amusement device may be other devices and equipment related to culture, education, sports, art.

The other parts of this embodiment are the same as those of the first embodiment.

For example, in the present embodiment, the positional relationship among the identification position, the corresponding magnetic sensor, and the article 2 'engaged with the identification position may be set with reference to the positional relationship among the chess-playing position, the corresponding magnetic sensor, and the chess piece engaged with the chess-playing position in the first embodiment, so as to ensure that the type of the article 2' can be identified according to the direction of the magnetic field vector detected by the magnetic sensor, specifically, the magnetic sensor is located directly below the corresponding article 2 ', the magnetic sensor is located directly below the permanent magnet of the corresponding article 2', the direction from the south pole to the north pole of the permanent magnet is the fourth direction, the fourth direction of each permanent magnet is perpendicular to the vertical direction, the fourth direction of the permanent magnets of the same article 2 'is the same direction, and for the same identification position, any two articles 2' have a difference between the corresponding fourth directions when engaged with the identification position, for example, five identification bits are distributed in the reference direction M in sequence, and the rotation angles corresponding to the various articles 2 ' representing "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "+", "" - "," "x", "+", "/" and "=" rotate clockwise to the same direction as the reference direction M and increase sequentially in an arithmetic progression, and the fourth direction corresponding to each article 2 ' is perpendicular to the vertical direction, that is, the rotation angle corresponding to the article 2 ' representing "0" is 0 °, the rotation angle corresponding to the article 2 ' representing "1" is 24 °, the rotation angle corresponding to the article 2 ' representing "2" is 48 °, and so on; for the same identification position, when the identification position is matched with the article 2 ', the vector direction of the magnetic field generated by the corresponding permanent magnet at the corresponding magnetic sensor is the first direction, the first directions corresponding to the same kind of article 2 ' are the same, and the first directions corresponding to any two kinds of articles 2 ' have difference, so that the type of the article 2 ' can be identified according to the vector direction of the magnetic field sensed by the corresponding magnetic sensor when the article 2 ' is matched with the identification position.

Alternatively, in other embodiments of the present invention, the reference direction M may also extend along an arc, or the reference direction M may extend along a curve.

Optionally, in other embodiments of the present invention, the number of the identification bits may also be adjusted to adapt to the operation learning with different difficulties, and of course, the number of the identification bits may also be one, or the identification bits may be distributed in other ways, for example, distributed in two columns.

For another example, as in the first embodiment, the first direction corresponding to each article 2' may have a certain error range, and the size of the error range may be preset.

Alternatively, in other embodiments of the present invention, the articles 2 'representing different numbers/operators may be replaced with articles 2' representing different letters, for example, the articles 2 'representing different letters include twenty-six articles representing "a", "b", "c", "d", "e", "f", "g", "h", etc., and the kind of the article 2' is identified according to the magnetic field vector direction sensed by the magnetic sensor, so that the articles can be used for children to learn english/pinyin after combining the calculation processing and the voice broadcasting/digital display (e.g., an existing calculator).

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.

Claims

1. An amusement apparatus comprising a base body and an article, the base body having an identification location, the article being detachably engaged with the identification location in a predetermined attitude, the same identification location engaging at most one of the articles simultaneously;

the method is characterized in that:

the article is provided with a permanent magnet, and the matrix is provided with a magnetic sensor at a position corresponding to the identification position;

the magnetic sensors can be used for detecting the direction of a magnetic field at the position of the magnetic sensors, for the same identification position, when the identification position is matched with the article, the direction of the magnetic field generated by the corresponding permanent magnet at the corresponding magnetic sensor is a first direction, and the first directions corresponding to any two articles are different;

or the magnetic sensors can be used for detecting the component direction of the magnetic field at the position of the magnetic sensors on a preset plane, for the same identification position, when the identification position is matched with the article, the component direction of the magnetic field, generated by the corresponding permanent magnet at the corresponding magnetic sensor, on the preset plane is a second direction, and the second directions corresponding to any two articles are different.

2. The amusement apparatus according to claim 1, wherein:

the base body is matched with the object to form a limiting position structure, the limiting position structure limits the object to the identification position in the preset posture, and the limiting position structure limits the object to rotate relative to the base body;

the limiting structure comprises a concave-convex matching structure; and/or the defining bit structure comprises a magnetic locating structure.

3. The amusement apparatus according to claim 1, wherein:

the entertainment appliance comprises a magnetic induction switch arranged on the base body and an induction magnet arranged on the object, wherein the magnetic induction switch corresponds to the identification position, and when the magnetic induction switch is triggered by the induction magnet, the identification position corresponding to the magnetic induction switch is matched with the object.

4. The amusement apparatus according to claim 1, wherein:

the identification position is provided with a first visual identification correspondingly, the article is provided with a second visual identification, and the combination of the second visual identification of the article and the corresponding first visual identification indicates that the article and the corresponding identification position are in a matching state.

5. The amusement apparatus according to claim 1, wherein:

the entertainment tool is a chess tool, a chessboard of the chess tool is the substrate, the chesses of the chess tool are the articles, and the chess falling position of the chessboard is the identification position;

or

The amusement article is a educational stationery, the article is a movable block representing letters, or the article is a movable block representing numbers/operators.

6. An amusement device according to any one of claims 1 to 5, wherein:

the direction from the south pole to the north pole of the permanent magnet is a fourth direction, for the same identification position, the fourth direction of the permanent magnet corresponding to each article when the article is matched with the identification position is perpendicular to the third direction, and the fourth directions corresponding to any two articles are different.

7. The amusement apparatus according to claim 6, wherein:

the magnetic sensor is a three-axis magnetic sensor, the three-axis magnetic sensor can be used for detecting the size of a magnetic field, and the central position of the permanent magnet of the article is opposite to the corresponding magnetic sensor along the third direction;

when the component size of the magnetic field detected by the magnetic sensor in the third direction is greater than or equal to a preset first threshold value, determining that the corresponding identification bit is abnormally matched with the article;

or when the included angle between the direction of the magnetic field detected by the magnetic sensor and the third direction exceeds the range of the preset included angle, determining that the corresponding identification position is abnormally matched with the article.

8. The amusement apparatus according to claim 7, wherein:

and when the included angle between the direction of the magnetic field detected by the magnetic sensor and the third direction exceeds the range of a preset included angle, and the size of the magnetic field detected by the magnetic sensor is greater than or equal to a preset second threshold value, determining that the corresponding identification position is abnormally matched with the article.

9. The amusement apparatus according to claim 7, wherein:

the entertainment appliance also comprises a state prompting unit which is in communication connection with the magnetic sensor;

and when the identification position is determined to be abnormally matched with the article, the corresponding state prompt unit sends prompt information.

10. The amusement apparatus according to claim 6, wherein:

the magnetic sensor can be used for detecting the vector direction of a magnetic field at the position of the magnetic sensor, the first direction is the vector direction, and the second direction is the vector direction; or the magnetic sensor can be used for detecting the linear direction of the magnetic field at the position of the magnetic sensor, wherein the first direction is the linear direction, and the second direction is the linear direction;

the magnetic sensor comprises a magnetic sensing chip;

the magnetic sensor is a two-axis magnetic sensor;

the article is detachably matched with the corresponding identification position along the third direction.

11. The amusement apparatus according to claim 6, wherein:

the base body is provided with a first matching surface at the identification position, the article is provided with a second matching surface, the first matching surface is attached to the second matching surface of the corresponding article, and the normal of the first matching surface and the normal of the second matching surface of the corresponding article are all along the third direction.

12. An amusement device according to any one of claims 1 to 5, wherein:

the magnetic sensor detects the actual direction of the magnetic field, and the entertainment appliance takes the article type corresponding to the first direction matched with the actual direction as the article type matched with the corresponding identification position;

the magnetic sensor detects the actual component direction of the magnetic field in the preset plane, and the entertainment appliance takes the article type corresponding to the second direction matched with the actual component direction as the article type matched with the corresponding identification position.

13. An amusement device according to any one of claims 1 to 5, wherein:

for the same identification position, when the identification position is matched with the article, the possible range of the size of the magnetic field detected by the corresponding magnetic sensor is a first preset size interval, and the possible range of the direction of the magnetic field detected by the corresponding magnetic sensor is a first preset direction interval;

when the actual direction and the actual size of the magnetic field detected by the magnetic sensor are sequentially located in the first preset direction interval and the first preset size interval corresponding to the same article type, the entertainment tool determines that the article is matched with the identification position, and determines that the article at the corresponding identification position belongs to the article type corresponding to the interval where the actual direction and the actual size are located;

for the same identification position, when the identification position is matched with the article, the possible range of the component size of the magnetic field detected by the corresponding magnetic sensor on the preset plane is a second preset size interval, and the possible range of the proper amount of the magnetic field detected by the corresponding magnetic sensor on the component direction of the preset plane is a second preset direction interval;

when the actual component direction and the actual component size of the magnetic field detected by the magnetic sensor on the preset plane are sequentially positioned in the second preset direction interval and the second preset size interval corresponding to the same article type, the entertainment tool determines that the article is matched with the identification position, and determines that the corresponding article at the identification position belongs to the article type corresponding to the actual component direction and the actual component size interval.

14. The amusement apparatus according to claim 13, wherein:

the entertainment tool is provided with a state prompting unit corresponding to the identification bit, and the state prompting unit is in communication connection with the corresponding magnetic sensor;

when the article is matched at the identification position, the corresponding state prompting unit prompts that the state is normal;

and/or

And when the actual size/the actual component size is larger than or equal to a preset second threshold value and the article is not matched with the identification position, the corresponding state prompting unit prompts that the state is abnormal.

15. The amusement apparatus according to claim 14, wherein:

the state prompting unit is a state indicating lamp/sound prompting device;

when the article is matched at the identification position, the corresponding state prompting unit prompts a first normal state;

and when the actual size/the actual component size is smaller than the second threshold value, the corresponding state prompting unit prompts that the state is the second normal state.