CN111167109B - Method and mechanism for pointing, calculating and indicating thickness of cut ball and posture adjusting device - Google Patents
Method and mechanism for pointing, calculating and indicating thickness of cut ball and posture adjusting device Download PDFInfo
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- CN111167109B CN111167109B CN202010086004.1A CN202010086004A CN111167109B CN 111167109 B CN111167109 B CN 111167109B CN 202010086004 A CN202010086004 A CN 202010086004A CN 111167109 B CN111167109 B CN 111167109B
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- A63—SPORTS; GAMES; AMUSEMENTS
- A63D—BOWLING GAMES, e.g. SKITTLES, BOCCE OR BOWLS; INSTALLATIONS THEREFOR; BAGATELLE OR SIMILAR GAMES; BILLIARDS
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Abstract
The invention provides a method and a mechanism for calculating and indicating thickness and aiming of a cut ball and a billiard posture adjusting device, and belongs to the technical field of billiard practice auxiliary equipment. The method comprises the following steps: presetting a ball hitting direction; acquiring images of a cue ball and a target ball along a direction to be hit; processing the image and calculating to obtain a first collision line formed by connecting the center of the mother ball and the center of the target ball; a first collision line or an angle of the first collision line is generated and displayed on a display device. The mechanism comprises a connecting body, a light source assembly, a connecting rod, a camera shooting assembly, a data processing module and a display module. The billiard posture adjusting device comprises the ball cutting thickness aiming calculation indicating mechanism, a hand-held cue holder, a shoulder front connecting assembly, an arm connecting assembly and a cue holder. The invention can be conveniently and integrally moved and used, can improve the perception efficiency of a user, is beneficial to reducing the difficulty of controlling the thickness of the split ball, is beneficial to improving the exercise efficiency, shortens the exercise time and is beneficial to quickly improving the level of the split ball.
Description
Technical Field
The invention belongs to the technical field of auxiliary billiard practicing equipment, and particularly relates to a method and a mechanism for calculating and indicating thickness and aiming of a cut ball and a billiard posture adjusting device.
Background
At present, in the billiard sports, the success rate of a player hitting a target ball far away or at a large angle is very low, because no reference object is available for the player to refer to the thickness of the cut ball or a targeted ball entering point, and meanwhile, when a new person practices billiards, generally through the guidance of a coach, the long-time observation and experience accumulation are needed for grasping the advancing route of the target ball after hitting, the thickness of the cut ball can be known only after the advancing route of the billiards can be roughly estimated, so that a better cue method is played, and the process is slow and relatively difficult, and the progress of many new persons is limited.
Disclosure of Invention
The invention aims to provide a method and a mechanism for aiming, calculating and indicating thickness of a cut ball and a billiard posture adjusting device, which aim to solve the technical problems that the thickness of the cut ball is difficult to control and the thickness of the cut ball is difficult to control in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the thin and thick aiming calculation and indication device for the tangent ball is provided, which comprises the following steps:
presetting a ball hitting direction;
utilizing parallel light rays to shoot to a target ball along the direction of the ball to be hit;
acquiring parallel rays and an image of a target ball;
processing the image and calculating to obtain a first collision line formed by connecting the center of a virtual ball and the center of a target ball, wherein the virtual ball is the position of a cue ball when colliding with the target ball after the cue ball travels along the direction to be hit;
a first collision line or an angle of the first collision line is generated and displayed on a display device.
In one embodiment of the present invention, the step of processing the image and calculating a first collision line connecting the center of the virtual ball and the center of the target ball includes:
processing the image to obtain a distance L between the virtual ball and the projection of the center of the target ball on a plane vertical to the axis of the club, and calculating a first collision line by using a formula x = arcsin (L/2 r), wherein r is the radius of the virtual ball and the target ball, and x is a separation angle, namely an included angle between the first collision line and the direction of the ball to be hit.
In one embodiment of the present invention, the parallel light rays are parallel light beams having an outer diameter equal to the diameter of the target sphere, and the step of acquiring the images of the parallel light rays and the target sphere comprises:
acquiring an image of a target ball after the parallel light ray edge irradiates on the target ball by utilizing a first camera shooting component which is preset in the direction of the ball to be hit and/or above a table;
the step of processing the image and calculating to obtain a first collision line formed by connecting the center of the virtual ball and the center of the target ball comprises the following steps:
processing the image and obtaining the proportion of the target ball at the inner side and the outer side of the parallel light rays, and obtaining the proportion of the target ball covered by the cue ball;
and calculating a first collision line formed by connecting the sphere center of the virtual ball and the sphere center of the target ball by utilizing the proportion of the cue ball covering the target ball.
In one embodiment of the present invention, the method further comprises the following steps:
after the first collision line is obtained through calculation, the range of the first collision line is estimated again by combining the impact of the position and the force of the hitting ball on the first collision line, and the range of the first collision line is obtained; the influence of the position and force of the hitting point on the first collision line is a parameter obtained in the test; when a high-club is used for hitting the ball, the separation angle of the cue ball is smaller than m, and when a low-club is used for hitting the ball, the separation angle of the cue ball is larger than m, and the degree of the separation angle of the cue ball is larger than or smaller than m, which is related to the rotating speed of the cue ball and the hitting force, namely, the separation angle is inversely proportional to the force and is directly proportional to the rotating speed.
In one embodiment of the present invention, the method further comprises the following steps:
and calculating a second collision line formed by connecting the center of the virtual ball and the center of the target ball by using the straight line where the parallel light is located and the reflected light after the parallel light irradiates on the target ball, which are obtained by the camera assembly at the fixed position on the table in advance, so as to inspect the calculated first collision line.
In order to achieve the purpose, the invention adopts the following technical scheme: the thickness of the cut ball is aimed at and calculated the indicating mechanism, including connector, light source assembly, tie rod, make a video recording assembly, data processing module and display module, the connector is used for connecting with ball arm; the light source component is arranged in front of the ball arm and is provided with a light source component for emitting parallel rays; the connecting rod is respectively connected with the connecting body and the light source component and has the freedom degree of enabling the light source component to deviate from the right front of the ball arm and move to the right front of the ball arm; the camera shooting assembly is used for acquiring images of parallel rays, a cue ball and a target ball; the data processing module is electrically connected with the camera shooting assembly and used for processing the image transmitted by the camera shooting assembly and calculating to obtain a traveling route signal of the target ball; the display module is electrically connected with the data processing module and is used for displaying the traveling route signal of the target ball.
In one embodiment of the invention, the light source assembly comprises a lamp ring and a point-shaped light source positioned at the central point of the lamp ring, laser lamps annularly and uniformly distributed on the periphery of the lamp ring, one or more of LED lamps, fluorescent lamps or incandescent lamps which are arranged on the lamp ring and provided with a lampshade; the parallel light rays are point light rays, parallel light beams, light columns or light rings; the camera shooting assembly is arranged in the middle of the lamp ring or on the lamp ring; the display module is arranged on the connecting body; the connecting rod is provided with a rotating shaft parallel to the ball rod, and the rotating shaft controls the degree of freedom of the light source component deviating from the right front of the ball rod and moving to the right front of the ball rod; the connecting body is provided with a slideway which is used for being connected with the ball rod and can be matched with the ball rod to move back and forth.
In order to achieve the purpose, the invention adopts the following technical scheme: the billiard posture adjusting device comprises the ball cutting thickness aiming calculation indicating mechanism, a hand-held billiard rod fixer, a shoulder front connecting assembly, an arm connecting assembly and a rod holder, wherein the hand-held billiard rod fixer is connected with a connecting body of the ball cutting thickness aiming calculation indicating mechanism and is used for being connected with the front part of a billiard rod; the front end of the shoulder front connecting component is connected with the hand-held cue fixer, and the rear end is used for connecting with the shoulder of a human body; the front end of the arm connecting assembly is connected with the rear end of the shoulder front connecting assembly and is used for connecting with the arm of the human body; the rod holder is connected with the rear end of the arm connecting component and is used for being connected with the rear part of the cue.
In one embodiment of the invention, the hand-held cue holder comprises a base, a support rod, a first slide rail, a sliding clamping block and a second slide rail, wherein the base is used for being placed on a billiard table surface; the supporting rod is vertically arranged on the base; the first sliding rail is arranged on the supporting rod and arranged along the axial direction of the ball arm; the sliding clamping block is connected with the first sliding rail in a sliding mode and is used for being connected with the ball rod; the second slide rail is used for extending from the middle part to the rear part of the ball rod, is connected with the first slide rail in a sliding manner, is connected with the shoulder front connecting assembly in a rotating manner, and is fixedly connected with the rod holder.
In one embodiment of the invention, the support rod is a telescopic rod; the front end or the base of the first slide rail is connected with the connecting body, and the rear end of the first slide rail is connected with the shoulder front connecting assembly; the first sliding rail is rotatably connected with the supporting rod; the lower part of the support rod is connected with the base in a sliding way along the direction vertical to the axis of the ball rod or is connected with the base in a rotating way around a rotating shaft parallel to the axis of the ball rod.
In one embodiment of the invention, the hand-held club holder further comprises a second slide rail, wherein the second slide rail is used for extending from the middle part to the rear part of the club, is connected with the first slide rail in a sliding manner, is rotatably connected with the shoulder front connecting assembly and is fixedly connected with the club holder.
In one embodiment of the invention, the assembly has three-dimensional rotational and telescopic freedom; the telescopic connecting rod component is vertically arranged and has the freedom degree of vertical telescopic, and the lower end of the telescopic connecting rod component is connected with a ball rod and/or a hand-held ball rod fixer; the lower part of the rotating shaft connecting rod component is provided with a first rotating shaft which is rotatably connected with the upper end of the telescopic connecting rod component and is parallel to the axis of the ball rod, the middle part of the rotating shaft connecting rod component is provided with a vertical second rotating shaft, the upper part of the rotating shaft connecting rod component is provided with a third rotating shaft which is vertical to the axis of the ball rod and a fourth rotating shaft which is rotatably connected with the arm connecting component, and the fourth rotating shaft and the axis of one end of the arm.
In one embodiment of the invention, the telescopic link assembly comprises an insert rod, a sleeve and an elastic assembly, wherein the insert rod is rotatably connected with a club and/or a hand-held club holder; the sleeve is inserted into the inserted rod, the lower end of the sleeve is provided with a flaring structure, and the upper end of the sleeve is rotationally connected with the rotating shaft connecting rod component; and two ends of the elastic component are respectively connected with the inserted bar and the sleeve and used for driving the inserted bar and the sleeve to be inserted and reset.
In one embodiment of the invention, the arm connecting assembly comprises a large arm rod, a small arm rod and a shoulder connecting rod, wherein one end of the large arm rod is rotatably connected with the front shoulder connecting assembly and is used for being connected with the large arm of the human body; one end of the small arm rod is rotatably connected with the other end of the large arm rod, and the other end of the small arm rod is rotatably connected with the rod holder and is used for being connected with the small arm of the human body; one end of the shoulder connecting rod is connected with the large arm rod and is used for being connected with the shoulders of the human body.
In one embodiment of the invention, the part of the front shoulder connecting assembly rotatably connected with the arm connecting assembly is also provided with a three-dimensional angle ruler for detecting a three-dimensional rotating angle between the front shoulder connecting assembly and the arm connecting assembly.
The method for calculating and indicating the thickness of the cut ball by aiming has the advantages that: compared with the prior art, a user can preset a ball hitting direction by himself, a first collision line formed by connecting a virtual ball center and a ball center of a target ball is obtained through calculation of an image processor by acquiring an image of the target ball along the ball hitting direction, the first collision line is approximately on a traveling line of the target ball after the target ball is impacted, then the angle of the first collision line or the first collision line is displayed on a display device and can be observed by the user, the user can know the possible traveling line of a backstage ball at multiple angles by changing the preset ball hitting direction for multiple times, the best ball hitting direction is selected, the traveling line of the billiards can be sensed quickly without each ball hitting test, the control difficulty of the user on the thickness of the billiards is reduced, the practice efficiency is improved, and the practice time is shortened, facilitating the rapid increase of the level thereof.
The thickness of the cutting ball aims and calculates the indicating mechanism of the invention has the beneficial effects that: compared with the prior art, the method for calculating and indicating the thickness of the cut ball by aiming can be implemented by a user through the cooperation of all parts, when the method is used, the user firstly moves the light source assembly to the right front of the ball rod to enable light beams emitted by the light source assembly to irradiate the target ball, then images are formed by the camera assembly, then the light beams are processed by the data processing module and finally displayed on the display module for the user to refer to, and when the user needs to hit the ball, the light source assembly is moved to a position deviating from the right front of the ball rod; on the one hand, the light source subassembly is under the cooperation of connector and connecting rod, can remove along with the removal of club, and conveniently aim at and remove away, on the other hand, can be in order to play the effect of mark, the data processing module of being convenient for is to the processing of image, also can make the user see the route of marcing of cue ball directly perceivedly, and then estimate the route of marcing of billiard ball after bumping, compare with the route of marcing that the display module shows again, user's perception efficiency can be improved, be favorable to reducing the user to the control degree of difficulty of the slice ball thickness, and be favorable to improving exercise efficiency, shorten exercise time, be favorable to its horizontally to improve fast.
The billiard posture adjusting device provided by the invention has the beneficial effects that: compared with the prior art, through setting up foretell cut ball thickness and aiming calculation indicating mechanism to aim at foretell cut ball thickness and calculate indicating mechanism and be connected with hand rest club fixer, can conveniently remove and use wholly, can improve user's perception efficiency, be favorable to reducing the control degree of difficulty of user's cut ball thickness, and be favorable to improving exercise efficiency, shorten the exercise time, be favorable to its horizontally to improve fast.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a first schematic structural diagram of a billiard posture adjusting device according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a billiard position adjusting device according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the connection assembly portion of the front shoulder of FIG. 2;
FIG. 4 is a schematic view of a hand-held cue stick holder portion of a billiards position adjustment apparatus according to another embodiment of the present invention;
fig. 5 is a calculation auxiliary diagram of a thin and thick aiming calculation indication method for a ball cut according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
10. the thickness of the cut ball aims at and calculates the indicating mechanism; 11. a linker; 12. a light source assembly; 13. a connecting rod;
14. a camera assembly; 15. a display module;
20. a hand-held cue holder; 21. a base; 22. a support bar;
23. a first slide rail; 24. a sliding clamping block; 25. a second slide rail;
30. a shoulder front connection assembly; 31. a rotating shaft connecting rod assembly; 32. inserting a rod; 33. a sleeve;
40. an arm connecting assembly; 41. a large arm lever; 42. a small arm lever; 43. a shoulder connecting rod;
50. a rod holder;
60. a shaft; 61. a cue ball.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention provides a method and a mechanism for pointing, calculating and indicating thickness of a cut ball, and a billiard posture adjusting device.
The invention provides a thin and thick aiming calculation and indication method for a tangent ball, which comprises the following steps:
presetting a ball hitting direction;
utilizing parallel light rays to shoot to a target ball along the direction of the ball to be hit;
acquiring parallel rays and an image of a target ball;
processing the image and calculating to obtain a first collision line formed by connecting the center of a virtual ball and the center of a target ball, wherein the virtual ball is the position of a cue ball when colliding with the target ball after the cue ball travels along the direction to be hit;
a first collision line or an angle of the first collision line is generated and displayed on a display device.
The parallel light rays, i.e. the parallel light beams, include point-like straight lines, light rays with a certain width, light rings with a certain shape, light columns with a certain shape and the like.
Compared with the prior art, the cut ball thickness aiming calculation indication method provided by the invention has the advantages that a user can preset a ball hitting direction by himself, a first collision line formed by connecting a virtual ball center and a ball center of a target ball can be calculated and obtained through an image processor by acquiring parallel light and an image of the target ball along the ball hitting direction, the first collision line is approximately on a traveling line of the target ball after being hit, then the angle of the first collision line or the first collision line is displayed on a display device and can be observed by the user, the user can know the possible traveling line of a background ball at multiple angles by changing the preset ball hitting direction for multiple times, the best ball hitting direction is selected, the traveling line of the billiards can be rapidly sensed without a ball hitting test every time, and the control difficulty of the user on the thickness of the cut ball is favorably reduced, and is favorable for improving the exercise efficiency, shortening the exercise time and being favorable for rapidly improving the level of the exercise.
As a specific embodiment of the thin and thick ball-cutting aiming calculation and indication method provided by the present invention, the step of processing the image and calculating to obtain a first collision line connecting the center of the virtual ball and the center of the target ball comprises:
processing the image to obtain a distance L between the virtual ball and the projection of the center of the target ball on a plane vertical to the axis of the club, and calculating a first collision line by using a formula x = arcsin (L/2 r), wherein r is the radius of the virtual ball and the target ball, and x is a separation angle, namely an included angle between the first collision line and the direction of the ball to be hit.
As shown in FIG. 5, B1、B3As a virtual ball, B2Is the target sphere, three spheres, etc. are equally large with radius r. Point P1Is B1And B2A point of contact. O is1、O2、O3Are respectively 3 ball centers, L1、L2Respectively through O in top view1、O2Perpendicular line in the horizontal plane, P4Is O1And O2The intersection point of the extension line and the excircle with the center of the excircle being O2Radius of 2r, P2Is O1In the horizontal plane with L in top view2Perpendicular point of (1), like P3Is O2And L1The vertical point of (a). L is3，L4Is a circumscribed straight line.
When the virtual ball covers B2At 100%, the virtual ball is at B3Location. When the virtual ball coverage area is reduced, B3To B1Moving in the direction of B1In position, at this time B3The distance of horizontal movement is O1To P2Length of room l1L with the length captured by the camera3To L4Is set as L minus 2r, i.e./1Is as P = L-2r3、O2、P2、O1The shape of the composition is rectangular, so P3O2Is equal to O1P2Length of (i) i1While O is1To O2Has a pitch of 2r, O2P3Perpendicular to L1So that the angle P can be solved according to the trigonometric function3O1O2Sine value (set to x) sinx = l1And/2 r = y, and then the angle of x = arcsiny is obtained according to an inverse cosine function, and the angle of x, namely the travel path (separation angle) of the target ball is calculated. The separation angle m =90 ° -x of the cue ball 61. The following table shows the partial coverage ratios and the corresponding target ball separation angles.
| Coverage ratio | Target |
| 10% | 64.15 |
| 20% | 53.13 degree |
| 29.3% | 45 |
| 30% | 44.43 |
| 40% | 36.87 |
| 50% | 30 |
| 60% | 23.58 degrees |
| 70% | 17.46 degree |
| 80% | 11.54 degree |
| 90% | 5.74 degree |
| 100% | 0 degree |
Understanding player about separation angle has common understanding error, such as that the radius of the mother ball is equal to that of the target ball, the thickness of the ball cut is generally considered to be changed in proportion to the separation angle, for example, the separation angle is 45 degrees when the ball is cut by half of the target ball, however, the separation angle is 30 degrees when the ball is cut by half according to scientific calculation, which is greatly different from the understood separation angle, so that the player has no confidence in the alignment, and the success rate is low particularly when the target ball with far table or large angle is hit.
As a specific implementation of the thin and thick aiming calculation and indication method for the ball cut provided by the present invention, the parallel light beams are parallel light beams with an outer diameter equal to the diameter of the target ball, and the step of acquiring the parallel light beams and the image of the target ball comprises:
acquiring an image of a target ball after the edge of parallel rays irradiates on the target ball by using a first camera shooting assembly preset in the direction of the ball to be hit or above a table;
the step of processing the image and calculating to obtain a first collision line formed by connecting the center of the virtual ball and the center of the target ball comprises the following steps:
processing the image and obtaining the proportion of the parts of the target ball on the inner side and the outer side of the parallel light rays, and obtaining the proportion of the target ball covered by the cue ball, wherein the proportion of the target ball covered by the cue ball is the proportion of the part of the target ball in the parallel light rays and the whole target ball;
and calculating a first collision line formed by connecting the sphere center of the virtual ball and the sphere center of the target ball by utilizing the proportion of the cue ball covering the target ball.
Under the assistance of the parallel light, the image obtained by the camera assembly in the hitting direction can be the same as the advancing direction of the cue ball 61 after hitting, after the image is corrected, the overlapping proportion of the virtual ball (namely, the center of the parallel light is the center of the virtual ball) and the target ball can be obtained, the proportion of the cue ball 61 covering the target ball at the moment before the collision can be accurately calculated, and the first collision line when the cue ball 61 collides with the target ball can be obtained.
In this embodiment and the previous embodiment, the size of the target ball displayed on the display module and the size of the virtual ball are substantially equal, the influence of the size of the target ball can be ignored, the virtual ball can be generated on the display module with the center point of the parallel light as the center of the sphere and the size of the target ball as the diameter, the thickness of the virtual ball cutting the target ball can be displayed, the separation angle generated at the same time can be displayed by the number, and the player can judge whether the thickness of the cut ball is correct through the display module. The calculating unit may also calculate the ratio of the virtual ball covering the target ball by the diameter displayed by the target ball with the center point of the parallel light as the center of the sphere and display the ratio with a number while generating the separation angle without generating the virtual ball on the display module. The virtual ball is generated when the mother ball contacts with the target ball, the distance difference between the two balls and the camera module is a distance in the range of 0-R, when the two balls are completely covered, the distance difference is smaller when the two balls are completely covered. If the precise distance from the virtual ball to the camera module is determined, adjustment is needed according to the thickness of the cut ball, and the method is similar to the algorithm of the separation angle.
As a specific implementation mode of the thin and thick aiming calculation and indication method for the ball cutting, the method further comprises the following steps:
after the first collision line is obtained through calculation, the range of the first collision line is estimated again by combining the impact of the position and the force of the hitting ball on the first collision line, and the range of the first collision line is obtained; the influence of the position and force of the hitting point on the first collision line is a parameter obtained in the test; when a high-club is used for hitting the ball, the separation angle of the cue ball is smaller than m, and when a low-club is used for hitting the ball, the separation angle of the cue ball is larger than m, and the degree of the separation angle of the cue ball is larger than or smaller than m, which is related to the rotating speed of the cue ball and the hitting force, namely, the separation angle is inversely proportional to the force and is directly proportional to the rotating speed.
And estimating the range of the first collision line again, namely introducing factors which can influence the travel route of the billiards, so as to estimate the possible range of the first collision line.
As a specific implementation mode of the thin and thick aiming calculation and indication method for the ball cutting, the method further comprises the following steps:
and calculating a second collision line formed by connecting the center of the virtual ball and the center of the target ball by using the straight line where the parallel light is located and the reflected light after the parallel light irradiates on the target ball, which are obtained by the camera assembly at the fixed position on the table in advance, so as to inspect the calculated first collision line. And estimating the range of the first collision line again, namely introducing factors which can influence the travel route of the billiards, so as to estimate the possible range of the first collision line.
Referring to fig. 1 and fig. 2, the sphere cutting thickness aiming calculation indicating mechanism provided by the present invention includes a connecting body 11, a light source assembly 12, a connecting rod 13, a camera assembly 14, a data processing module and a display module 15; the connecting body 11 is used for connecting with the club 60; the light source assembly 12 is arranged in front of the cue 60 and is provided with a light source assembly for emitting parallel rays; the connecting rod 13 is respectively connected with the connecting body 11 and the light source component 12, the degree of freedom is provided for enabling the light source component 12 to deviate from the right front of the cue 60 and move to the right front of the cue 60, and another rotating shaft can be arranged at other positions of the connecting body 11 and/or the connecting rod 13, so that the front part of the connecting rod 13 can be turned and/or moved back and forth, left and right or up and down on a cue ball for aiming and storage; the camera assembly 14 is used for acquiring images of the parallel light beams and the target ball; the data processing module is electrically connected with the camera assembly 14 and is used for processing the image transmitted by the camera assembly 14 and calculating and obtaining a traveling route signal of the target ball; the display module 15 is electrically connected with the data processing module and is used for displaying the traveling route signal of the target ball. The light source module 12 may be a lamp ring, a rectangular panel, or any other shape as long as it can emit light.
Compared with the prior art, when the sighting, calculating and indicating mechanism for the thickness of the cut ball is used, a user firstly moves the light source component 12 to the position right in front of the ball rod 60 to enable light beams emitted by the light source component 12 to irradiate the target ball, then images are formed by the camera component 14, then the light beams are processed by the data processing module and finally displayed on the display module 15 for the user to refer to, and when the user needs to hit the ball, the light source component 12 is moved to a position deviated from the position right in front of the ball rod 60; on the one hand, the light source component 12 can move along with the movement of the cue 60 under the matching of the connecting body 11 and the connecting rod 13, and can be conveniently aligned and moved away, on the other hand, the marking function can be achieved, the data processing module can conveniently process images, a user can visually see the advancing line of the cue ball 61, the advancing line of the billiards after collision is estimated, the advancing line is compared with the advancing line displayed by the display module 15, the perception efficiency of the user can be improved, the control difficulty of the thickness of the billiards by the user can be reduced, the exercise efficiency can be improved, the exercise time is shortened, and the level of the billiards can be rapidly improved.
Referring to fig. 1 and 2 together, as a specific embodiment of the sphere-cutting thickness-aiming calculation and indication mechanism provided by the present invention, the light source assembly 12 includes a lamp ring and a point-shaped light source located at the central point of the lamp ring, laser lamps circumferentially and uniformly distributed on the periphery of the lamp ring, one or more of an LED lamp, a fluorescent lamp or an incandescent lamp provided on the lamp ring and having a lamp cover; the parallel light rays are point light rays, parallel light beams, light columns or light rings; the camera assembly 14 is arranged in the middle of the lamp ring or on the lamp ring; the display module 15 is provided on the connection body 11. The parallel light beams comprise point-shaped straight lines, light rays with certain width, light rings with certain shapes, light columns with certain shapes and the like.
Referring to fig. 1 and 2 together, as a specific embodiment of the present invention, a connecting rod 13 is provided with a rotating shaft parallel to a club 60, and the rotating shaft controls the degree of freedom of a light source assembly 12 deviating from the front of the club 60 and moving to the front of the club 60; the connecting body 11 is provided with a slideway which is used for being connected with the ball rod 60 and can be matched with the ball rod 60 to move back and forth.
When the billiard cue is used, the light source component emits a punctiform straight line L, and the straight line and the billiard cue point to the same vertical plane, is parallel to the billiard cue, and has the height which is higher than the billiard cue by the distance equal to the radius R of the billiard cue. This light L is the path that the center point of the cue ball 61 follows as it progresses in the direction of the cue ball when the cue hits any point on the vertical centerline of the cue ball. Meanwhile, the light source component can also emit a light beam which takes the L as a central axis and the radius of the mother sphere R as the radius, and the part of the light beam, which is irradiated to the target sphere, is the proportion of the tangent sphere, namely the thickness of the tangent sphere. The light beam can also be replaced or coexisted by an annular aperture or annular punctiform light.
The camera module captures the proportion of the light beam irradiating the target ball or the distance between the center point of the target ball and the L is set as D, and if the distance is more than or equal to 0 and less than or equal to 2R, the calculation module calculates the traveling routes of the cue ball and the target ball. And if the central point of the target ball is Q, the line of the target ball deviating from L in the horizontal plane is separated from L by an angle of X through the point Q, wherein X = arcsinD/2R, and the separation angle M = 90-X between the mother ball and L in the horizontal plane. Different separation angles of the target ball corresponding to different thicknesses of the cut ball can be obtained through the formula, and a database corresponding to the separation angles and the thicknesses of the cut ball can be generated. After the camera module captures the proportion of the light beam irradiating the target ball, relevant information can be displayed on the display module.
The display module displays the separation angle of the target ball and the mother ball in a picture obtained by the video module through a virtual line and generates a top view or a three-dimensional view to be displayed on the display module, the display module can be an electronic device such as a display, a display panel, a mobile phone and a wearable device, and when the virtual line of the target ball points to the center of the bag opening, the thickness of the tangent ball or the straight line where the L is located is the correct position for aiming.
The calculating unit can also calculate the proportion of the virtual ball covering the target ball through the displayed diameter of the target ball by taking the center of the parallel light beam as a central point, and the virtual ball is displayed by using a number without generating the virtual ball on the display module, namely, the separation angle of the target ball is synchronously changed along with the change of the direction aimed by the parallel light beam and displayed on the display module. The data processing module can form the shape of a virtual player according to the data collected by each part and display the shape on the display module, so that the player can intuitively know the problems existing in the posture.
Referring to fig. 1 to 4 together, the billiard posture adjusting device provided by the present invention includes the aforementioned ball cutting thickness aiming calculation indication mechanism, the hand-held cue holder 20, the shoulder connecting assembly 30, the arm connecting assembly 40 and the rod holder 50; the hand-held club holder 20 is connected with the connecting body 11 of the ball-cutting thickness aiming calculation indication mechanism and is used for being connected with the front part of the club 60; the front end of the shoulder connecting component 30 is connected with the hand-held cue holder 20, and the rear end is used for connecting with the shoulders of the human body; the front end of the arm connecting assembly 40 is connected with the rear end of the shoulder front connecting assembly 30 and is used for connecting with the arm of the human body; the shaft holder 50 is connected to the rear end of the arm connecting assembly 40 and is adapted to be connected to the rear of the club 60.
Compared with the prior art, the billiard posture adjusting device provided by the invention has the advantages that the billiard ball thickness aiming calculation and indication mechanism is arranged and is connected with the hand-held cue holder 20, so that the billiard ball thickness aiming calculation and indication mechanism can be conveniently and integrally moved and used, the perception efficiency of a user can be improved, the control difficulty of the user on the thickness of the billiard ball can be reduced, the practice efficiency can be improved, the practice time can be shortened, and the level can be quickly improved.
Referring to fig. 1, 2 and 4 together, as an embodiment of the billiard posture adjusting apparatus provided by the present invention, a billiard cue holder 20 includes a base 21, a support rod 22, a first slide rail 23 and a slide clamping block 24, wherein the base 21 is used for being placed on a billiard table surface; the supporting rod 22 is vertically arranged on the base 21; the first slide rail 23 is arranged on the support rod 22 and arranged along the axial direction of the cue 60; the slide clamp 24 is slidably connected to the first slide rail 23 and is adapted to be connected to the club 60.
Referring to fig. 1, 2 and 4 together, as an embodiment of the billiards posture adjusting device provided by the present invention, the support rod 22 is a telescopic rod; the front end or the base 21 of the first slide rail 23 is connected with the connecting body 11, and the rear end is connected with the shoulder front connecting assembly 30; the first slide rail 23 is rotatably connected to the support rod 22. The part that first slide rail 23 is located base 21 top can the fretwork setting, and bracing piece 22 is two, is connected around with first slide rail 23 fretwork position respectively to keep the position that the club was reserved in the support of tiger's mouth, thereby need not change player's hand frame hack lever custom, avoid bracing piece 22 to adopt the mode production influence of hand frame club to the user. Because the club is a tapered structure with a thin front part and a thick rear part, the lower end of the shoulder front connecting assembly 30, the sliding clamping block 24 and the club holder 50 can plug the club 60 in the sleeve in a clamping manner so as to form fixed connection. In addition, the sleeve can be made into a shape which is thin in the front and thick in the back and conforms to the shape of a club, or can be made into a shape of a clamp, a fastening bandage or a rotating fastening structure, so that the installation is convenient.
As a specific embodiment of the billiard posture adjusting device provided by the present invention, the supporting rod 22 is a telescopic rod, the base 21 is connected with the connecting body 11, the lower portion of the supporting rod 22 is connected with the base 21 in a sliding manner along a direction perpendicular to the axis of the billiard cue 60, or is connected with the base 21 in a rotating manner around a rotating shaft parallel to the axis of the billiard cue 60, so that the first sliding rail 23 is adjusted and the fine adjustment of the position of the end of the billiard cue 60 is driven by the adjustment of the supporting rod 22, so that the billiard cue 60 can hit a hitting point such as a left ball plug and a.
Referring to fig. 1 to 4, as an embodiment of the billiard posture adjusting device according to the present invention, the billiard cue holder 20 further includes a second slide rail 25, the second slide rail 25 is configured to extend from the middle to the rear of the billiard cue 60, is slidably connected to the first slide rail 23, is rotatably connected to the front shoulder connecting assembly 30, and is fixedly connected to the cue holder 50. The first slide rail 23 and the second slide rail 25 may be of a split structure or an integrated structure.
Referring to fig. 1 to 3, as an embodiment of the billiards posture adjusting device provided by the present invention, the front shoulder connecting assembly 30 has three-dimensional rotational freedom and telescopic freedom; the assembly 30 comprises a telescopic connecting rod assembly and a rotating shaft connecting rod assembly 31, the telescopic connecting rod assembly is vertically arranged and has a freedom degree of vertical extension, and the lower end of the telescopic connecting rod assembly is connected with a ball rod 60 and/or a hand-held ball rod fixer 20; the lower part of the rotating shaft connecting rod assembly 31 is provided with a first rotating shaft which is rotatably connected with the upper end of the telescopic connecting rod assembly and is parallel to the axis of the ball rod 60, the middle part of the rotating shaft connecting rod assembly is provided with a vertical second rotating shaft, the upper part of the rotating shaft connecting rod assembly is provided with a third rotating shaft which is vertical to the axis of the ball rod 60 and a fourth rotating shaft which is rotatably connected with the arm connecting assembly 40, and the fourth rotating shaft and the axis of one end, close to the rotating. Referring to fig. 1 to 3 together, as an embodiment of the billiard posture adjusting apparatus provided by the present invention, the telescopic link assembly includes a rod 32, a sleeve 33 and a resilient member, wherein the rod 32 is rotatably connected to the cue 60 and/or the cue holder 20; the sleeve 33 is inserted into the insert rod 32, the lower end of the sleeve is provided with a flaring structure, and the upper end of the sleeve is rotatably connected with the rotating shaft connecting rod assembly 31; two ends of the elastic component are respectively connected with the inserted rod 32 and the sleeve 33 and used for driving the inserted rod 32 and the sleeve 33 to be inserted and reset.
Referring to fig. 1 to 3 together, as an embodiment of the billiard posture adjusting device provided by the present invention, the arm connecting assembly 40 includes a big arm rod 41, a small arm rod 42 and a shoulder connecting rod 43, one end of the big arm rod 41 is rotatably connected to the front shoulder connecting assembly 30 and is used for connecting to the big arm of the human body; one end of the small arm rod 42 is rotatably connected with the other end of the large arm rod 41, and the other end of the small arm rod is rotatably connected with the rod holder 50 and is used for connecting with the small arm of the human body; one end of the shoulder connecting rod 43 is connected with the upper arm rod 41 and is used for connecting with the shoulder of the human body.
As a specific embodiment of the billiard posture adjusting device provided by the present invention, the billiard posture adjusting device further comprises a ridge link for contacting with the ridge of the human body and a hard belt for connecting with the waist of the human body, one end of the ridge link is connected with the middle part of the arm connecting assembly 40, the other end is connected with the middle part of the hard belt, each connection is provided with a rotating shaft and a mechanism for displaying the rotating angle, the mechanism can be a mechanical structure or an electronic mechanism such as a sensor, etc., and the rotating data can be sent to the computing module and displayed on the display module.
Referring to fig. 1 to 3, as an embodiment of the billiard posture adjusting device provided by the present invention, a three-dimensional angle ruler for detecting a three-dimensional rotation angle between the front shoulder connecting assembly 30 and the arm connecting assembly 40 is further provided at a portion where the front shoulder connecting assembly 30 and the arm connecting assembly 40 are rotatably connected.
The three-dimensional angle ruler comprises a first angle measuring module and a second angle measuring module, wherein the first angle measuring module is coaxially connected with the shoulder front connecting assembly 30, the second angle measuring module is coaxially connected with the arm connecting assembly 40, the first angle measuring module and the second angle measuring module are vertically connected or integrally arranged, and the three-dimensional rotating angle between the shoulder front connecting assembly 30 and the arm connecting assembly 40 is obtained through twice reading. Specifically, the three-dimensional angle ruler is arranged at the joint of the upper arm rod and the front shoulder connecting assembly 30 and used for detecting the included angle of the body on the plane vertical to the upper arm and the lower arm.
In addition, in the thin and thick ball cutting aiming calculation indicating mechanism and the billiard posture adjusting device provided by the invention, each part in rotary connection can be provided with a rotation angle measuring module, the angle measuring module can be a mechanical structure module or an electronic module, if the angle measuring module is the electronic module, the angle measuring module can be connected with a controller, and finally angle data is displayed on a display module 15 through the controller, and the electronic module can be a sensor or an electronic reading device.
The present invention provides a visible cue ball center point travel path, a visible ball cutting thickness ratio and a separation angle of a target ball when the target ball is cut according to different proportions for a player, so that a goal rate can be greatly improved, and the player can rapidly improve the ball cutting thickness feeling of the target ball hitting different angles through practice, thereby improving accuracy.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A thin and thick aiming calculation and indication mechanism for a ball is characterized by comprising:
a connecting body (11) for connecting with a shaft (60);
the light source component (12) is arranged in front of the cue (60) and the cue ball and used for emitting light columns;
a link (13) which is connected to the connecting body (11) and the light source assembly (12), respectively, and which has a degree of freedom for moving the light source assembly (12) away from the front of the club (60) and toward the front of the club (60) so as to avoid a cue ball when hitting a ball;
a camera assembly (14) for acquiring images of the light pillar, the cue ball (61) and the target ball;
the data processing module is electrically connected with the camera assembly (14) and used for processing the image transmitted by the camera assembly (14) and calculating and obtaining a traveling route signal of the target ball; and
and the display module (15) is electrically connected with the data processing module and is used for displaying the traveling route signal of the target ball.
2. The thin and thick aiming calculation and indication mechanism for cutting ball of claim 1, wherein: the camera assembly (14) is arranged in the middle of the light source assembly (12) and/or above the table; the light source component comprises laser lamps circumferentially and uniformly distributed on the periphery of the light source component (12), and one or more of fluorescent lamps, LED lamps or incandescent lamps which are arranged on the light source component (12) and provided with lampshades; the display module (15) is arranged on the connecting body (11); a rotating shaft parallel to the ball arm (60) is arranged on the connecting rod (13), and the rotating shaft controls the degree of freedom of the light source component (12) deviating from the right front of the ball arm (60) and moving to the right front of the ball arm (60); the connecting body (11) is provided with a slideway which is used for being connected with the ball rod (60) and can be matched with the ball rod (60) to move back and forth.
3. A ball-cutting thickness aiming calculation indication method, characterized in that the ball-cutting thickness aiming calculation indication mechanism of claim 1 or 2 is adopted, and the method comprises the following steps:
presetting a ball hitting direction;
utilizing parallel light rays to shoot to a target ball along the direction of the ball to be hit;
acquiring parallel rays and an image of a target ball;
processing the image and calculating to obtain a first collision line formed by connecting the center of a virtual ball and the center of a target ball, wherein the virtual ball is the position of a cue ball (61) when colliding with the target ball after traveling along the direction to be hit;
generating the first collision line or the angle of the first collision line, and displaying on a display device.
4. The method for pointing thin and thick ball cutting aiming calculation and indication according to claim 3, wherein the step of processing the image and calculating to obtain the first collision line connecting the center of the virtual ball and the center of the target ball comprises the steps of:
and processing the image to obtain a distance L between the virtual ball and the projection of the center of the target ball on a plane vertical to the axis of the club, and calculating the first collision line by using a formula x = arcsin (L/2 r), wherein r is the radius of the virtual ball and the target ball, and x is a separation angle, namely an included angle between the first collision line and the direction to be hit.
5. The thin and thick aiming calculation indication method for cutting a sphere according to claim 3, wherein the parallel light rays are parallel light beams having an outer diameter equal to the diameter of the target sphere, and the step of acquiring the images of the parallel light rays and the target sphere comprises:
acquiring an image of the target ball after the parallel light ray edge irradiates on the target ball by using a first camera shooting component which is preset in the direction of the ball to be hit or above the table;
the step of processing the image and calculating to obtain a first collision line formed by connecting the center of the virtual ball and the center of the target ball comprises the following steps:
processing the image and obtaining the proportion of the parts of the target ball at the inner side and the outer side of the parallel light rays to obtain the proportion of the target ball covered by the cue ball (61);
a first collision line connecting the center of the virtual ball and the center of the target ball is calculated using the ratio of the target ball covered with the cue ball (61).
6. The thin and thick sight calculation and indication method for the tangent ball as claimed in claim 3, further comprising the steps of:
after the first collision line is obtained through calculation, estimating the range of the first collision line again by combining the impact of the position and the force of the hitting on the first collision line, and obtaining the range of the first collision line; the influence of the position and the force of the hitting on the first collision line is a parameter obtained by a test; the separation angle of the cue ball (61) is less than m when hitting a high shot, and the separation angle of the cue ball (61) is greater than m when hitting a low shot, and the degree of the greater or lesser is related to the rotational speed of the cue ball (61) and the hitting power, i.e., inversely proportional to the power and directly proportional to the rotational speed.
7. The thin and thick sight calculation and indication method for the tangent ball as claimed in claim 3, further comprising the steps of:
and calculating a second collision line formed by connecting the center of the virtual ball and the center of the target ball by utilizing a straight line where the parallel light is located and the reflected light after the parallel light irradiates on the target ball, which are obtained by a camera assembly at a fixed position on the table in advance, so as to inspect the calculated first collision line.
8. A billiard position adjusting device, comprising:
the thin and thick aiming calculation and indication mechanism for the ball cutting according to any one of claims 1-2;
the hand-held club holder (20) is connected with the connecting body (11) of the ball cutting thickness aiming calculation and indication mechanism and is used for being connected with the front part of a club (60);
the front shoulder connecting component (30) is connected with the hand-held cue holder (20) at the front end and connected with the shoulder of a human body at the rear end;
the front end of the arm connecting component (40) is connected with the rear end of the shoulder front connecting component (30) and is used for being connected with the arm of the human body; and
a rod holder (50) connected to a rear end of the arm connecting assembly (40) and adapted to be connected to a rear portion of the club (60).
9. The billiard attitude adjusting apparatus of claim 8, wherein the hand-held cue holder (20) includes:
a base (21) for placing on a billiard table surface;
the supporting rod (22) is vertically arranged on the base (21);
the first sliding rail (23) is arranged on the supporting rod (22) and is arranged along the axial direction of the ball rod (60);
the sliding clamping block (24) is connected with the first sliding rail (23) in a sliding mode and is used for being connected with the ball rod (60); and
and the second slide rail (25) is used for extending from the middle part to the rear part of the club (60), is connected with the first slide rail (23) in a sliding way, is connected with the shoulder front connecting assembly (30) in a rotating way, and is fixedly connected with the rod holder (50).
10. A billiards position adjusting device according to claim 9, wherein the support rod (22) is a telescopic rod; the front end of the first slide rail (23) or the base (21) is connected with the connecting body (11), and the rear end of the first slide rail is connected with the shoulder front connecting assembly (30); the first sliding rail (23) is rotatably connected with the supporting rod (22); the lower part of the supporting rod (22) is connected with the base (21) in a sliding way along the direction vertical to the axis of the ball arm (60) or is connected with the base in a rotating way around a rotating shaft parallel to the axis of the ball arm (60);
the shoulder front connecting assembly (30) has three-dimensional rotational freedom and telescopic freedom; the pre-shoulder connection assembly (30) comprises:
the telescopic connecting rod component is vertically arranged, has the freedom degree of vertical telescopic movement, and the lower end of the telescopic connecting rod component is connected with the ball rod (60) and/or the hand-held ball rod fixer (20); and
the lower part of the rotating shaft connecting rod assembly (31) is provided with a first rotating shaft which is rotatably connected with the upper end of the telescopic connecting rod assembly and is parallel to the axis of the ball rod (60), the middle part of the rotating shaft connecting rod assembly is provided with a vertical second rotating shaft, the upper part of the rotating shaft connecting rod assembly is provided with a third rotating shaft which is vertical to the axis of the ball rod (60) and a fourth rotating shaft which is rotatably connected with the arm connecting assembly (40), and the fourth rotating shaft is superposed with the axis of one end, close to the rotating shaft connecting rod assembly (31), of the arm;
the telescopic link assembly comprises:
a plunger (32) rotatably connected to the shaft (60) and/or the hand held shaft holder (20);
the sleeve (33) is inserted into the insertion rod (32), the lower end of the sleeve is provided with a flaring structure, and the upper end of the sleeve is rotatably connected with the rotating shaft connecting rod component (31); and
two ends of the elastic component are respectively connected with the inserted bar (32) and the sleeve (33) and used for driving the inserted bar (32) and the sleeve (33) to be inserted and reset;
the arm connecting assembly (40) includes:
one end of the big arm rod (41) is rotatably connected with the shoulder front connecting assembly (30) and is used for being connected with the big arm of the human body;
one end of the small arm rod (42) is rotatably connected with the other end of the large arm rod (41), and the other end of the small arm rod is rotatably connected with the rod holder (50) and is used for being connected with the small arm of the human body; and
a shoulder connecting rod (43), one end of which is connected with the big arm rod (41) and is used for being connected with the shoulder of the human body;
the position of the shoulder front connecting assembly (30) and the arm connecting assembly (40) in rotating connection is also provided with a three-dimensional angle ruler used for detecting a three-dimensional rotating angle between the shoulder front connecting assembly (30) and the arm connecting assembly (40).
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| CN202010086004.1A CN111167109B (en) | 2020-02-11 | 2020-02-11 | Method and mechanism for pointing, calculating and indicating thickness of cut ball and posture adjusting device |
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| CN202010086004.1A CN111167109B (en) | 2020-02-11 | 2020-02-11 | Method and mechanism for pointing, calculating and indicating thickness of cut ball and posture adjusting device |
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| CN111167109B true CN111167109B (en) | 2021-07-13 |
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| CN202020896U (en) * | 2011-03-15 | 2011-11-02 | 卢庆华 | Pole-ejection training device for hitting billiards |
| CN103349835A (en) * | 2013-08-06 | 2013-10-16 | 刘佳林 | Billiard aiming method and special billiard aiming device |
| CN104874171B (en) * | 2015-02-06 | 2016-11-23 | 珠海市欣颖电子有限公司 | Sight for billiard and method of sight |
| CN108694466B (en) * | 2018-05-18 | 2021-12-07 | 梁栋 | Method and device for recommending batting route |
| KR102003292B1 (en) * | 2018-10-25 | 2019-07-24 | 박철훈 | A billiard pointer apparatus providing information for the thickness and the hitting point |
| CN209333169U (en) * | 2018-11-30 | 2019-09-03 | 王永辉 | Billiard ball posture detection adjusts device |
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