CN104307153B - Basketball flight path guider and method - Google Patents

Abstract

The invention discloses a basketball flight track navigation device, which includes a bracket and a navigation limit mechanism, wherein the brackets are arranged in pairs, including a base, a column and two brackets arranged on the column, and the two brackets The relative distance along the vertical direction on the corresponding support can be adjusted; there are two navigation limit mechanisms, and each navigation limit mechanism includes a limit initiation unit and a limit receiving unit, which are respectively arranged on two brackets at the same height , used to generate the height limit mark in the horizontal direction, by adjusting the relative height of the two navigation limit mechanisms, the height limit mark is used as the highest limit height and the minimum limit height of the highest point of the basketball flight trajectory parabola, so that the two heights The area between the limit marks becomes the effective interval of the basketball flight trajectory, thereby realizing the control of the basketball flight trajectory. The invention can provide a real-time, intuitive and three-dimensional shooting mode, help shooters to practice scientifically and effectively, improve the shooting percentage, and has extensive practical value in basketball shooting training and teaching.

Description

Basketball flight track navigation device and method

technical field

The invention belongs to the field of sports equipment, and in particular relates to a basketball flight track navigation device and method, which are suitable for basketball shooting training or teaching.

Background technique

Whether the basketball can be thrown into the basket mainly depends on the flight trajectory of the basketball in the air. If the flight trajectory is reasonable, the shooting percentage will be high. That is, the key to improving the shooting percentage is to control the flight trajectory of the basketball.

The basketball flight trajectory is a parabola, and the basketball flight trajectory is related to many factors, including, for example, the height of the shot, the angle of the shot, the strength of the shot, the shooting distance, the center of gravity of the ball, and the factors of the shooter (shooter or shooting machine), etc., so that the basketball flight trajectory The control is very complicated.

The main parameters of the flight parabolic trajectory include the release angle, the entry angle and the parabola height, that is, the angle between the shooting and the horizontal plane, the angle between the basketball and the horizontal plane when it enters the frame, and the height of the highest point in the basketball flight. These three parameters are in a certain relationship. The impact of other factors is reflected in the above three parameters. As long as these three parameters can be effectively controlled, the shooting percentage can be greatly improved.

In basketball shooting training or teaching, for the control of such factors as the release angle, the entry angle and the height of the parabola, early shooters often estimate the highest point and the lowest point of the shot by feeling to determine the trajectory of the basketball, so This leads to unstable shooting movements, and the phenomenon of high and low shooting percentages. In order to control the shooting trajectory more effectively, there is a video recording of the shooting action and flight trajectory of the shooter on the basketball court, and then the movement is analyzed and compared off the court to correct the flight trajectory to obtain more effective shooting action and flight. trajectory scheme.

However, this control of the shooter's shooting action and flight trajectory is too complicated and cumbersome at first, and the equipment requirements are high, and because the factors affecting the shooting action and flight trajectory are too complicated, the accuracy control of the shooting percentage is not high. More importantly, this analysis and control method is usually carried out off the court, and then passed to the shooter on the court. It cannot guide and control the shooter to realize the control of the flight trajectory in real time, and cannot correct the shooter in time. Action, so the effect of improving shooting percentage is not good.

Contents of the invention

Aiming at the above defects of the prior art, the present invention provides a basketball flight track navigation device. By arranging the navigation path in the shooting space, the flight track of the basketball can be controlled within a certain range, so that the shooter can be intuitively and real-time. Shooting drills to improve your shooting percentage.

In order to achieve the above object of the present invention, according to one aspect of the present invention, a basketball flight trajectory navigation device is provided, which is used to enable the flight trajectory of the basketball to be controlled within a certain range, so as to guide the basketball into the frame accurately, thereby improving the accuracy of shooting. The hit rate is characterized in that the device includes a bracket and a navigation limit mechanism arranged on the bracket, wherein,

The supports are arranged in pairs with a certain distance apart on the horizontal plane. The supports include a base, a column vertically arranged on the base, and two brackets arranged on the column. The relative distance along the vertical direction on the bracket can be adjusted;

There are two navigation limit mechanisms, and each navigation limit mechanism includes a limit initiator and a limit receiver, which are respectively arranged on two brackets at the same height of the two supports for generating The altitude limit mark in the horizontal direction, by adjusting the relative height of the two navigation limit mechanisms, the height limit mark is used as the highest limit height and the minimum limit height of the highest point of the basketball flight trajectory parabola, so that the two height limit The area between the marks becomes the effective interval of the basketball flight trajectory, thereby realizing the control of the basketball flight trajectory.

As an improvement of the present invention, each column surface is provided with a vertical chute in the vertical direction, and the two brackets are arranged on the chute at a certain distance in height, wherein each bracket includes The sliding seat and the supporting plate fixed on the sliding seat, the navigation limit mechanism is arranged on the supporting plate, the sliding seat is arranged on the chute and can slide in the vertical direction relative to the chute, so as to realize two The adjustment of the relative distance of each bracket along the vertical direction on the corresponding bracket.

As an improvement of the present invention, the bracket is provided with a locking device for locking the bracket after the bracket slides into place on the bracket.

As an improvement of the present invention, the column is made of multi-stage cylinders that can be relatively stretched in height, and the two brackets are respectively arranged on different cylinders, and are realized by the relative expansion and contraction of the column cylinder. Adjustment of the relative distance between the two brackets along the vertical direction on the corresponding support.

As an improvement of the present invention, a locking mechanism is provided between two adjacent cylinders for locking the two cylinders after the two cylinders are telescopically stretched into place.

As an improvement of the present invention, the navigation limit mechanism is also provided with an alarm, which has a sensor for generating alarm information when the basketball touches the height limit mark or is not within the effective range.

As an improvement of the present invention, the alarm information is sound or light information.

As an improvement of the present invention, the height limit mark in the horizontal direction is a visible light, the limit triggering mechanism is a visible light transmitter, and the limit receiving mechanism is a visible light receiver.

As an improvement of the present invention, the visible light is laser.

As an improvement of the present invention, the height limit mark in the horizontal direction is a rope, one end of which is fixed on the limit initiating mechanism, and the other end is fixed on the limit receiving mechanism.

By setting the device of the present invention at a position between the shooter and the basket, and making the horizontal distance from the basket approximately at the position of the highest point of the parabola of the shooting trajectory, through the height of the shooter's shot and the distance between the shooter and the basket, The positions of the two navigation limit mechanisms are adjusted in height to form an effective range for shooting. As long as the shooting parabola is within the range, the shooting percentage will be greatly improved.

The device of the invention can display the absolute height of the parabola with a laser in the air, help to form a good shooting habit, and correct the player's wrong action in time through the infrared voice alarm device, thereby greatly improving the hit rate.

In order to achieve the above object of the present invention, according to another aspect of the present invention, a basketball flight trajectory navigation method is provided, which is used to enable the flight trajectory of the basketball to be controlled within a certain range, so as to guide the basketball into the frame accurately, Thereby improving the shooting percentage, it is characterized in that the method comprises setting two horizontally arranged height limit marking lines in the vertical plane where the highest point of the parabola where the basketball flight trajectory is located is, and the two height limit marking lines are respectively It is the horizontal line where the highest limit height and the lowest limit height of the highest point are located, so that the area between the two horizontally arranged height limit marking lines forms an effective shooting interval in the vertical plane, and controls the highest point of the basketball flight trajectory Being located in the effective range can increase the probability of the basketball entering the frame, thereby increasing the shooting rate.

As an improvement of the present invention, the height of the height limit marking line is determined according to the shooting angle, shooting height and shooting distance.

As an improvement of the present invention, the height limit marking line may be a visible light or a rope.

Generally speaking, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

(1) The device of the present invention adopts the mode of limiting the effective area of the highest point of the basketball flight parabola, and provides control of the basketball flight trajectory to control the shot angle, strength, etc. of the shooter;

(2) The device of the present invention adopts a visual limit mark, and is also provided with an alarm device, which can prompt the shooter very intuitively and in real time, without analyzing and correcting off the court, and the practice effect is better;

(3) The device of the present invention can provide real-time, intuitive and three-dimensional shooting methods in basketball shooting training and teaching, help shooters practice scientifically and effectively, improve shooting percentage, and have extensive practical value in professional training and teaching .

Description of drawings

FIG. 1 is a schematic structural diagram of a navigation device according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a support column of a navigation device according to another embodiment of the present invention;

Fig. 3 is a structural schematic diagram of a navigation limit mechanism of a navigation device according to yet another embodiment of the present invention;

Fig. 4 is a schematic diagram of the principle of the basketball flight trajectory of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

As shown in FIG. 1 , the navigation device of this embodiment includes a bracket 100 and a navigation limiting mechanism 200 arranged on the bracket.

In the navigation device of this embodiment, there are two brackets 100, and they are placed on the level surface of the court during operation, and are separated by a certain distance to form a pair arrangement. The bracket includes a base 110, a column 120 vertically arranged on the base 110, and two brackets 130 arranged on the column 120. The relative distance between the two brackets 130 in the vertical direction on the corresponding bracket 110 can be adjusted. This makes it possible for the two brackets 130 to be located at different heights on the court.

There are two navigation limit mechanisms 200, and each navigation limit mechanism 200 includes a limit initiation unit 210 and a limit reception unit 220, which are respectively arranged on the two brackets 130 at the same height of the two brackets 100 , the height limit mark in the horizontal direction can be generated at the same height of the two brackets 100 through the navigation limit mechanism 200 . The limit navigation mechanism 200 at two different heights can generate two height limit marks at different heights.

The navigation limit mechanism 200 is preferably provided with a sensor for measuring height information, and has a display unit capable of displaying the height information.

As a preferred embodiment, the limit initiating unit 210 is a visible light transmitter, and the corresponding limit receiving unit 220 is a visible light receiver, through which the limit initiating unit 210 emits visible light to the limit at the same height. The receiving unit 220 generates visible light in the horizontal direction as a height limit mark.

Preferably, the visible light can be a visible laser, and its color can be conspicuous green, red or other colors.

As another preferred embodiment, as shown in FIG. 3 , the height limit mark is formed by stretching the rope, and the corresponding limit initiation unit 210 ′ is a device for fixing one end of the rope, and the corresponding limit receiving unit 220 ' is the device for fixing the other end of the rope. The type and type of the rope are not limited, for example, it may be an elastic thread or the like.

Generally speaking, using lasers to reflect the highest and lowest points of the basketball trajectory is suitable for indoor teaching and training, and using elastic lines or other items to display the highest and lowest points of the basketball trajectory is suitable for outdoor teaching and training.

Two height limit marks of different heights respectively represent the limit height value of the highest point position of the basketball flying parabolic trajectory when shooting, that is, the highest and lowest values allowed at the highest point of the parabola that can make the basketball accurately enter the frame. The area between the bit marks becomes the effective interval of the basketball flight track, and the highest point of the parabola falls in this interval, then the probability of the basketball entering the frame is very high, so that the hit rate can be greatly improved.

As a preferred embodiment, a vertical chute 1201 is provided on the surface of each column 120 in the vertical direction, and the two brackets 130 are arranged in the chute 1201 at a certain distance in height, wherein each bracket The frame 130 includes a sliding seat 1301 and a supporting plate 1302 fixed on the sliding seat 1301. The navigation limit mechanism 200 is arranged on the supporting plate 1302. The sliding seat 1301 is arranged in the sliding groove 1201 and can be opposite to the sliding groove 1201. Sliding in the vertical direction, so as to realize the adjustment of the relative distance between the two brackets 13-on the corresponding support 100 along the vertical direction.

A locking device 1303 may be provided on the bracket 130 for locking the bracket 130 after the bracket 130 slides to a position on the bracket 100 .

As another preferred embodiment, as shown in FIG. 2 , the column 120 is formed by nesting multi-stage cylinders 1204 that are relatively stretchable in height, and the two brackets 130 are respectively arranged on different cylinders 1204 The adjustment of the relative distance between the two brackets 130 on the corresponding bracket 100 along the vertical direction is realized through the relative expansion and contraction of the column body 1204 .

A locking mechanism 1205 is provided between two adjacent cylinders 1204 for locking the two cylinders 1204 after the two cylinders 1204 are stretched to a certain position.

As a further preference, an alarm 230 may also be provided in the navigation limit mechanism, which has a sensor for generating an alarm message when the basketball touches the height limit mark or is not in the effective interval, and the alarm The information may be acoustic information or optical information, or other information that can be drawn to noticeable attention.

By setting the device of the present invention at a position between the shooter and the basket, and making the horizontal distance from the basket approximately at the position of the highest point of the parabola of the shooting trajectory, through the height of the shooter's shot and the distance between the shooter and the basket, The positions of the two navigation limit mechanisms are adjusted in height to form an effective range for shooting. As long as the shooting parabola is within the range, the shooting percentage will be greatly improved.

In the present invention, the determination of the height positions of the two navigation limit mechanisms, that is, the determination of the two height limit marks in the horizontal direction, can be calculated and determined by the user according to the actual situation, or can be stored in the database in advance .

Specifically, as shown in Figure 4, the shot angle α is the angle between the horizontal plane where the last contact point A is located and the highest point C of the basketball running parabola when the basketball leaves the shooter, that is, tanα=BC/AB; β is the angle between the connecting line between the center of the ball and the center of the rim and the horizontal plane of the rim when the basketball runs to the front of the rim, that is, tanβ=AB/BC; the height H of the parabola is the highest point of the basketball trajectory to the ground The height of H=CF, the shot height is AD=BF=h.

The shot angle a is directly related to the shot point A and the shot height h. Assuming that the strength L is quantitative, the formation of the parabola is related to the height of the basketball in the running track and the angle a of the player's shot, and the shot angle can be obtained:

$\mathrm{<span\; class="notranslate">\; \&alpha;</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; arg</span>}\mathrm{<span\; class="notranslate">\; the\; tan</span>}<span\; class="notranslate">\; (</span>\frac{\mathrm{<span\; class="notranslate">\; CF</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; h</span>}}{\mathrm{<span\; class="notranslate">\; DF</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; 180</span>}<span\; class="notranslate">\; \&divide;</span>\mathrm{<span\; class="notranslate">\; \&pi;</span>}<span\; class="notranslate">\; .</span>$

Through sampling statistics, set the different height h values of the shot point A: 160cm, 165cm, 170cm, 175cm, 180cm, 185cm, 190cm, 195cm, 200cm, 210cm, 220cm, 230cm, 240cm, according to the above formula, with a fixed Take the shooting point as an example. For example, in this embodiment, DF=353cm is taken as an example. When CF is 450cm, 440cm, 420cm and 400cm, the values of α angles corresponding to different shooting heights can be obtained.

According to the fitting calculation in the above table, the relationship between the height of the shot, the angle of the shot and the highest point of the basketball can be obtained. In fact, for the shooter, the height and angle of the shot are basically unchanged, and under the condition of a certain shooting distance, the position of the highest point in the horizontal direction is basically within a reasonable range. It is pre-estimated that the reasonable range of the highest point of the basketball can be estimated according to the relational formula obtained above. According to the above range, the height of the two horizontal limit height marks can be set, and the position of the navigation device can be set accordingly, so that shooting teaching practice or training can be carried out, and the shooting track can be navigated.

Those skilled in the art can easily understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (12)

1. a basketball flight path guider, flight path for making basketball can be controlled in certain limit, so that basketball can be guided accurately to enter frame, thus improve field goalds, it is characterized in that, this device includes support (100) and is arranged on this support (100) position-limit mechanism (200) that navigates, wherein

Described support (100) is two arranged in pairs the most separated by a distance, described support (100) includes base (110), the column (120) being vertically arranged on base (110) and two brackets (130) being arranged on column (120), said two bracket (130) relative distance adjustable vertically on corresponding support (100), locking device (1303) it is provided with on described bracket (130), for locking this bracket (130) at described bracket (130) after the upper slip of support (100) puts in place；

Described navigation position-limit mechanism (200) is two, each navigation position-limit mechanism (200) includes a spacing initiation unit and a spacing reception unit, it is separately positioned on being on two brackets (130) at sustained height of two supports (100), for producing the height limit labelling of horizontal direction, by adjusting the relative altitude of two navigation position-limit mechanism (200), described both heights gag lever post is made to remember the upper limit (UL) height respectively as the parabolical peak of basketball flight path and lowest limit height, the region between the spacing labelling of both heights is made to become basketball flight path valid interval, thus can realize realizing controlling to basketball flight path.

A kind of basketball flight path guider the most according to claim 1, wherein, each described column (120) surface is provided with vertical chute (1201) at vertical direction, said two bracket (130) in height keeps at a certain distance away and is arranged on described chute (1201), the most each bracket (130) includes slide (1301) and the supporting plate (1302) being fixed on this slide (1301), described navigation position-limit mechanism (200) is arranged on this supporting plate (1302), described slide (1301) is arranged on chute (1201) and above and can relatively slide at vertical direction by this chute (1201), thus realize the adjustment of two brackets (130) relative distance on corresponding support (100) vertically.

A kind of basketball flight path guider the most according to claim 1, wherein, described column (120) is by height can the multistage cylinder (1204) of relative telescopic being mutually socketed to form, said two bracket (130) is separately positioned on different cylinders (1204), is realized the adjustment of said two bracket (130) relative distance on corresponding support (100) vertically by the relative telescopic of column cylinder (1204).

A kind of basketball flight path guider the most according to claim 3, wherein, it is provided with retaining mechanism (1205) between adjacent two cylinders (1204), after stretching put in place at two cylinders (1204), locks two cylinders (1204).

5. according to a kind of basketball flight path guider according to any one of claim 1-4, wherein, alarm (230) it is additionally provided with in described navigation position-limit mechanism, it has sensor, for producing warning message when described basketball is touched described height limit labelling or is not in described valid interval.

A kind of basketball flight path guider the most according to claim 5, wherein, described warning message is sound or light information.

7. according to a kind of basketball flight path guider according to any one of claim 1-4 and 6, wherein, the height limit of described horizontal direction is labeled as visible rays, described spacing initiation unit (210) is visible light emitter, and described spacing reception unit (220) is visible light receptor.

A kind of basketball flight path guider the most according to claim 7, wherein, described visible rays is laser.

9. according to a kind of basketball flight path guider according to any one of claim 1-4 and 6, wherein, the height limit of described horizontal direction is labeled as rope, its one end is fixed on described spacing initiation unit (210 '), and the other end is fixed on spacing reception unit (220 ').

10. a basketball flight path air navigation aid, flight path for making basketball can be controlled in certain limit, so that basketball can be guided accurately to enter frame, thus improve field goalds, it is characterized in that, two horizontally disposed height limit mark lines are set in the perpendicular at the parabolical peak place that the method is included in basketball flight path place, these two height limit mark lines are respectively upper limit (UL) height and the horizontal line at lowest limit height place of described peak, so that between two horizontally disposed height limit mark lines between the formation shooting area, region in perpendicular, the peak controlling basketball flight path is positioned at this valid interval, basketball can be made to enter frame probability improve, thus improve field goalds.

11. a kind of basketball flight path air navigation aids according to claim 10, wherein, the height of described height limit mark line determines according to angle of trajectory of shooting, height and the shooting distance of selling.

12. according to a kind of basketball flight path air navigation aid described in claim 10 or 11, and wherein, described height limit mark line is visible rays or rope.