CN111346356A - Sports teaching apparatus - Google Patents
Sports teaching apparatus Download PDFInfo
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- CN111346356A CN111346356A CN202010161160.XA CN202010161160A CN111346356A CN 111346356 A CN111346356 A CN 111346356A CN 202010161160 A CN202010161160 A CN 202010161160A CN 111346356 A CN111346356 A CN 111346356A
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- resistor
- camera
- ball frame
- basketball
- sensor
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B63/00—Targets or goals for ball games
- A63B63/08—Targets or goals for ball games with substantially horizontal opening for ball, e.g. for basketball
- A63B63/083—Targets or goals for ball games with substantially horizontal opening for ball, e.g. for basketball for basketball
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B47/00—Devices for handling or treating balls, e.g. for holding or carrying balls
- A63B47/02—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/18—Inclination, slope or curvature
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Studio Devices (AREA)
Abstract
The invention provides a physical education teaching apparatus, comprising: a lift cage assembly; the ball frame assembly is connected to the lifting frame assembly; and the basketball collecting device is used for collecting the basketballs falling from the ball frame assembly. The lifting frame component is arranged for adjusting the height of the ball frame component, so that the ball frame component is convenient to adapt to users with different heights and is more convenient to use. According to the invention, the basketball collecting device is arranged, so that the basketball is collected after falling from the basketball hoop component, the times of running back and forth for picking up the basketball from a long distance are reduced, and the basketball collecting device is more convenient to use.
Description
Technical Field
The invention relates to the technical field of sports goods, in particular to a sports teaching instrument.
Background
The physical education is a purposeful and organized education process carried out according to a certain plan and course standards, the physical education is participated by teachers and students, the task is to teach physical education knowledge, technology and skill to the students, enhance the constitution, cultivate moral, will, quality and the like, the physical education is a basic form for realizing physical education of schools, is one of implementation ways of physical objects, is used as a main force or 'assistant' of the physical education, and is a physical education teaching instrument, such as a basketball stand. The existing basketball stand has the problem that the height of the basketball stand cannot be adjusted, and the basketball stand cannot collect the basketball and needs to frequently run back and forth for a long distance to pick up the basketball.
Disclosure of Invention
The present invention provides a physical education apparatus for solving at least one of the above-mentioned technical problems.
A physical education apparatus comprising:
a lift cage assembly;
the ball frame assembly is connected to the lifting frame assembly;
and the basketball collecting device is used for collecting the basketballs falling from the ball frame assembly.
Preferably, the crane assembly comprises:
the mounting seat is hollow inside;
the two vertical threaded rods are arranged in the mounting seat at intervals, and the upper end and the lower end of each vertical threaded rod are respectively and rotatably connected with the inner walls of the upper end and the lower end of the mounting seat;
the lifting block is provided with a vertical internal thread hole matched with external threads on the outer side of the vertical threaded rod, and the vertical internal thread hole is in threaded connection with the outer side of the vertical threaded rod;
the first fixed block is fixedly connected with the two lifting blocks respectively;
the lifting support is fixedly connected to the upper end of the first fixing block, and a through hole for lifting the lifting support is formed in the upper end of the mounting seat;
the driving motor is arranged on one side of one vertical threaded rod, and an output shaft of the driving motor is horizontally arranged;
the two second fixed blocks are arranged between the two vertical threaded rods;
the rotating rods are horizontally arranged and are respectively and rotatably connected with the two second fixing blocks;
the first bevel gear is fixedly connected to an output shaft of the driving motor;
the second bevel gear is fixedly sleeved on the vertical threaded rod close to the driving motor, and the first bevel gear and the second bevel gear are in meshing transmission;
the third bevel gear and the fourth bevel gear are respectively fixed at two ends of the rotating rod;
the fifth bevel gear is fixedly sleeved on the vertical threaded rod far away from the driving motor;
the second bevel gear is in meshing transmission with the third bevel gear, and the fourth bevel gear is in meshing transmission with the fifth bevel gear.
Preferably, the ball frame assembly includes:
the first connecting bracket is rotatably connected to the left side or the right side of the top end of the lifting frame assembly;
the ball frame mounting plate is fixedly connected to one side, away from the lifting frame assembly, of the first connecting support;
the ball frame is fixedly connected to the middle part of the ball frame mounting plate;
a plurality of first threaded through holes are formed in the top of the lifting frame assembly at intervals up and down, and the first threaded through holes are formed in the front and back direction of the lifting frame assembly;
one end of each second connecting support is fixedly connected to the front side and the rear side of the lower end of each first connecting support, and the other end of each second connecting support is provided with a second threaded through hole;
the first threaded through hole is connected with the second threaded through hole through a bolt.
Preferably, the basketball collection apparatus includes:
a collection frame;
the first ends of the four first supporting rods are respectively and rotatably connected to the inner sides of four corners of the top end of the collecting frame, and the second ends of the first supporting rods are provided with first threaded grooves along the axial direction of the first supporting rods;
the first ends of the four second support rods are respectively connected with the second ends of the four first support rods, and one end of each second support rod is provided with an external thread matched with the first thread groove;
the collecting net is connected to the inner sides of the four first supporting rods and the second supporting rods;
a support rod assembly is arranged between the two first support rods on the same side;
the support rod assembly includes:
the first end of the third supporting rod is rotatably connected with one first supporting rod on the same side;
the first end of the fourth supporting rod is rotatably connected with the other first supporting rod on the same side; and the second end of the third support rod is in threaded connection with the second end of the fourth support rod.
Preferably, the ball frame assembly includes: the middle lower part of the ball frame mounting plate is provided with a ball frame;
further comprising: a detection assembly, the detection assembly comprising:
the camera is connected to the top end of the ball frame mounting plate;
the shell is connected to the lifting support, a power supply and a microcontroller are arranged in the shell, and an alarm device is arranged on the shell;
one side of the basketball mounting plate, which is provided with the ball frame, is provided with a mounting layer, and a plurality of pressure sensors are arranged in the mounting layer;
the microcontroller is respectively electrically connected with the camera, the power supply, the pressure sensor and the alarm device, and is also wirelessly connected with the monitoring terminal.
Preferably, the detection device further comprises: basketball induction system includes: the light ray emitters are arranged on the ball frame mounting plate; and the light receiver is arranged on the ball frame mounting plate.
Preferably, the alarm device comprises a first alarm and a second alarm; the alarm circuit also comprises a first alarm circuit and a second alarm circuit;
the first alarm circuit includes:
the first end of the third resistor is connected with the output end of the controller;
the cathode of the third diode is connected with the second end of the third resistor;
one end of the third capacitor is connected with the second end of the third resistor and the second power supply, and the other end of the third capacitor is connected with the anode of the third diode;
the power end of the second integrated chip is connected with a second power supply, and the output end of the second integrated chip is connected with the first alarm;
one end of the second resistor is connected with a second power supply, and the other end of the second resistor is connected with the input end of the second integrated chip;
one end of the sixth capacitor is connected with the anode of the third diode and is grounded, and the other end of the sixth capacitor is connected with the input end of the second integrated chip;
one end of the first resistor is connected with the output end of the second integrated chip, and the other end of the first resistor is grounded;
one end of the seventh capacitor is connected with the output end of the second integrated chip, and the other end of the seventh capacitor is grounded;
the second alarm circuit includes:
the cathode of the first diode is connected with the anode of the power supply;
the input end of the first integrated chip is connected with the anode of a power supply, and the output end of the first integrated chip is connected with the anode of a first diode and the power end of a camera;
one end of the first capacitor is connected with the input end of the first integrated chip, and the other end of the first capacitor is grounded;
one end of the fourth resistor is connected with the control end of the first integrated chip;
the fifth resistor is an adjustable resistor, one end of the fifth resistor is connected with the other end of the fourth resistor, and the other end of the fifth resistor is grounded;
the first end of the sixth resistor is connected with the output end of the first integrated chip, and the second end of the sixth resistor is connected with the control end of the first integrated chip;
the cathode of the second diode is connected with the output end of the first integrated chip, and the other end of the second diode is connected with the second end of the sixth resistor;
one end of the second capacitor is grounded, and the other end of the second capacitor is connected with the anode of the second diode;
one end of the fourth capacitor is connected with the cathode of the second diode, and the other end of the fourth capacitor is grounded;
the two input ends of the third logic gate are connected with the power end of the camera;
one end of the auxiliary power supply is connected with the fifth diode;
the first end of the eleventh resistor is the cathode of the fifth diode, and the second end of the eleventh resistor is connected with the power supply end of the third logic gate;
one end of the eighth capacitor is connected with the second end of the eleventh resistor, and the other end of the eighth capacitor is grounded;
the negative electrode of the fourth diode is connected with the second end of the eleventh resistor, and the positive electrode of the fourth diode is grounded;
the input end of the first logic gate is connected with the output end of the third logic gate;
a ninth resistor, the first end of which is connected with the other input end of the first logic gate circuit;
the output end of the second logic gate is connected with the first end of the ninth resistor;
one end of the tenth resistor is connected with two input ends of the second logic gate circuit, and the other end of the tenth resistor is connected with the second end of the ninth resistor;
one end of the fifth capacitor is connected with the second end of the ninth resistor, and the other end of the fifth capacitor is connected with the output end of the first logic gate;
one end of the eighth resistor is connected with the output end of the first logic gate;
the base electrode of the triode is connected with the other end of the eighth resistor and is grounded through the seventh resistor, and the emitting electrode of the triode is grounded;
one end of the second alarm is connected with the output end of the third logic gate, and the other end of the second alarm is connected with the collector electrode of the triode.
Preferably, the detection device further comprises:
the human body infrared distance sensor is arranged on the ball frame mounting plate and is close to the camera;
the light supplement lamp is connected to the ball frame mounting plate and is arranged close to the camera;
the camera rotating device is used for driving the camera to rotate;
the first illuminance sensor is arranged at the position, where the light supplement lamp is installed, on the ball frame installation plate;
the second illuminance sensor is arranged on the lifting bracket;
the height sensor is arranged on the ball frame mounting plate;
the angle detection device is used for detecting the angle of the camera;
when the human body infrared distance sensor senses a human body and the basketball sensing device senses that a basketball approaches the basketball rim mounting plate, the microcontroller controls the camera to rotate according to information detected by the first illumination sensor, the second illumination sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and then the microcontroller controls the camera to shoot;
the microcontroller controls the camera to rotate according to the information detected by the first illuminance sensor, the second illuminance sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and the method comprises the following steps:
step 1: determining a coefficient according to equation (1);
wherein A is coefficient, when α < B, A ═ A1；
When α is greater than or equal to B, A is equal to A2；
α is a illuminance value detected by the second illuminance sensor, β is a illuminance value detected by the first illuminance sensor, λ is a vertical distance from a ball frame mounting plate to a ball frame at the camera mounting position, e is a constant, e is 2.71828, pi is a constant, pi is 3.14159, M is a basketball mass, η is a horizontal distance from the ball frame mounting plate to the ball frame at the camera mounting position, ln () is a natural logarithm, and g is a gravity acceleration;
step 2: determining a target angle according to the formula (2) based on the basketball sensing device, the human body infrared sensor, the height sensor and the coefficient;
where θ is the target angle, θ0The angle between the current direction and the vertical direction of a camera detected by an angle detection device is detected, D is a distance value detected by a human body infrared distance sensor, L is a height value detected by a height sensor, A is a coefficient, N is the number of light emitters, and H is the distance of light rays emitted by each light emitter sensed by a light sensor;
and step 3: and the microcontroller controls the camera rotating device to enable the included angle between the camera and the vertical direction to be the target angle.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Figure 2 is a schematic diagram of one embodiment of the basketball collection system of the present invention.
FIG. 3 is a circuit diagram of a first alarm circuit and a second alarm circuit of the present invention.
In the figure: 1. a lift cage assembly; 11. a mounting seat; 12. a vertical threaded rod; 13. a lifting block; 14. a first fixed block; 15. a lifting support; 16. a drive motor; 17. a second fixed block; 18. rotating the rod; 19. a first bevel gear; 110. a second bevel gear; 111. a third bevel gear; 112. a fourth bevel gear; 113. a fifth bevel gear; 2. a ball frame assembly; 21. a first connecting bracket; 22. a ball frame mounting plate; 23. a ball frame; 24. a first threaded through hole; 25. a second connecting bracket; 26. a bolt; 3. a basketball collection device; 31. a collection frame; 32. a first support bar; 33. a second support bar; 34. a third support bar; 35. collecting a net; 36. a fourth support bar; 36. a third link; 37. a fourth link; r1, a first resistor; r2, a second resistor; r3, third resistor; r4, fourth resistor; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; r9, ninth resistor; r10, tenth resistor; r11, eleventh resistor; c1, a first capacitance; c2, a second capacitor; c3, a third capacitance; c4, a fourth capacitance; c5, a fifth capacitance; c6, a sixth capacitor; c7, a seventh capacitance; c8, an eighth capacitor; u1, a first logic gate; u2, a second logic gate; u3, third logic gate; q, a triode; v1, auxiliary power supply; v2, second power supply; d1, a first diode; d2, a second diode; d3, a third diode; d4, a fourth diode; d5, a fifth diode.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.
An embodiment of the present invention provides a physical education apparatus, as shown in fig. 1-2, including:
a crane assembly 1;
the ball frame assembly 2 is connected to the lifting frame assembly 1;
and the basketball collecting device is used for collecting the basketballs falling from the ball frame assembly. The basketball collecting component can be connected to the lower end of the lifting frame component, or the basketball collecting component and the lifting frame component are two independent devices.
The working principle and the beneficial effects of the technical scheme are as follows:
the lifting frame component is arranged for adjusting the height of the ball frame component, so that the ball frame component is convenient to adapt to users with different heights and is more convenient to use.
According to the invention, the basketball collecting device is arranged, so that the basketball is collected after falling from the basketball hoop component, the times of running back and forth for picking up the basketball from a long distance are reduced, and the basketball collecting device is more convenient to use.
In one embodiment, as shown in figure 1,
the lift truck assembly 1 includes:
the mounting seat 11 is hollow inside;
the two vertical threaded rods 12 are arranged in the mounting seat 11 at intervals, and the upper end and the lower end of each vertical threaded rod 12 are respectively and rotatably connected with the inner walls of the upper end and the lower end of the mounting seat 11;
the two lifting blocks 13 are respectively connected with the two vertical threaded rods 12, the lifting blocks 13 are provided with vertical internal threaded holes matched with external threads on the outer sides of the vertical threaded rods 12, and the vertical internal threaded holes are in threaded connection with the outer sides of the vertical threaded rods 12;
the first fixing block 14 is fixedly connected with the two lifting blocks 13 respectively;
the lifting support 15 is fixedly connected to the upper end of the first fixing block 14, and a through hole for lifting the lifting support 15 is formed in the upper end of the mounting seat 11;
the driving motor 16 is arranged on one side of one vertical threaded rod 12, and an output shaft of the driving motor 16 is horizontally arranged;
two second fixed blocks 17 arranged between the two vertical threaded rods;
the rotating rods 18 are horizontally arranged, and the rotating rods 18 are respectively and rotatably connected with the two second fixing blocks 17;
a first bevel gear 19 fixedly connected to an output shaft of the driving motor 16;
the second bevel gear 110 is fixedly sleeved on the vertical threaded rod 12 close to the driving motor 16, and the first bevel gear 19 and the second bevel gear 110 are in meshing transmission;
a third bevel gear 111 and a fourth bevel gear 112 respectively fixed at two ends of the rotating rod 18;
a fifth bevel gear 113 fixedly sleeved on the vertical threaded rod 12 far away from the driving motor 16;
the second bevel gear 110 is in mesh transmission with a third bevel gear 111, and the fourth bevel gear 112 and a fifth bevel gear 113 are in mesh transmission.
Preferably, a motor start button can be arranged on one side of the mounting seat; or a microcontroller is arranged in the mounting seat, the microcontroller is electrically connected with the driving motor, the microcontroller is also wirelessly connected with a control terminal (such as a remote control terminal), and the driving motor can be wirelessly controlled by sending instructions through the control terminal.
The working principle and the beneficial effects of the technical scheme are as follows: when the height of ball basket subassembly needs to be adjusted, start driving motor, driving motor rotates, through first bevel gear, second bevel gear drive be close to driving motor's vertical threaded rod and rotate, simultaneously through second bevel gear, third bevel gear, fourth bevel gear, fifth bevel gear drive another vertical threaded rod and rotate, two vertical threaded rod synchronous rotations, the elevator on two vertical threaded rods reciprocates, drives the lifting support through the second fixed block and reciprocates to the ball frame subassembly that drives on the lifting support reciprocates. The technical scheme is convenient for driving the ball frame assembly to move up and down, and the two vertical threaded rods are arranged, so that the vertical movement of the lifting support bracket is guided conveniently, and the lifting support bracket is reliably supported; and through motor drive, compare in pneumatics or hydraulically move more reliably.
In one embodiment, as shown in fig. 1, the ball frame assembly 2 includes:
the first connecting bracket 21 is rotatably connected to the left side or the right side of the top end of the lifting frame assembly 1;
the ball frame mounting plate 22 is fixedly connected to one side, away from the lifting frame assembly 1, of the first connecting bracket 21;
the ball frame 23 is fixedly connected to the middle part of the ball frame mounting plate 22;
a plurality of first threaded through holes 24 are formed in the top of the lifting frame assembly 1 at intervals up and down, and the first threaded through holes 24 are formed along the front and back directions of the lifting frame assembly 1;
one ends of the two second connecting brackets 25 are fixedly connected to the front side and the rear side of the lower end of the first connecting bracket 21 respectively, and the other ends are provided with second threaded through holes;
the first threaded through hole 24 and the second threaded through hole are connected by a bolt 26.
The working principle and the beneficial effects of the technical scheme are as follows: when the inclination angle of the ball frame mounting plate (ball frame) needs to be adjusted, the first connecting support is rotated to adjust the inclination angle, then the second threaded through hole at the other end of the second connecting support is respectively connected with the first threaded through holes at different positions (heights) through bolts, and the first connecting support is fixed in position. Above-mentioned technical scheme is convenient for adjust the inclination of ball frame mounting panel, and the inclination is adjusted to the pure mechanical structure of accessible, and is more reliable.
In one embodiment, as shown in fig. 1-2, the basketball collection apparatus 3 may include:
a collection frame 31; preferably, the collecting frame may be provided in a foldable form.
First ends of the four first support rods 32 are respectively and rotatably connected to the inner sides of four corners of the top end of the collecting frame 31, and second ends of the first support rods 32 are provided with first threaded grooves along the axial direction of the first support rods;
first ends of the four second support rods 33 are respectively connected with second ends of the four first support rods 32, and one end of each second support rod 33 is provided with an external thread matched with the corresponding first thread groove;
a collecting net 35 connected to the inner sides of the four first support bars 32 and the four second support bars 33;
a support rod assembly is arranged between the two first support rods on the same side;
the support rod assembly includes:
a third support bar 34, the first end of which is rotatably connected with the first support bar 32 on the same side;
a fourth support bar 36, the first end of which is rotatably connected with the other first support bar 32 on the same side; the second end of the third support rod 34 is in threaded connection with the second end of the fourth support rod 36 (for example, the second end of the third support rod is provided with an external thread, and the second end of the fourth support rod is provided with a threaded hole, and the threaded hole is in matched connection with the external thread through the internal thread).
The working principle and the beneficial effects of the technical scheme are as follows: when the basketball collecting device is not needed, the second ends of the third supporting rod 34 and the fourth supporting rod 36 are detached, so that the third supporting rod and the fourth supporting rod are separated, and the basketball collecting device is convenient to store; when needs use basketball collection device, rotate third bracing piece and fourth bracing piece, make both be in horizontal position, then with third bracing piece 34 second end and the 36 second end threaded connection of fourth bracing piece, through the length of adjusting 34 second ends of third bracing piece and the 36 second end threaded connection of fourth bracing piece, be convenient for adjust the total length of third bracing piece and fourth bracing piece, thereby realize the different contained angles of two first bracing pieces with one side, with the different collection regions of the collection net on the first bracing piece of adjustment, more convenient to use, and above-mentioned structural adjustment is convenient. And the basketball can be placed in the collecting frame after being used at every time, and the basketball is convenient to store and transport.
In one embodiment, the ball frame assembly 2 includes: the ball frame mounting plate 22 is provided with a ball frame 23 at the middle lower part of the ball frame mounting plate 22;
further comprising: a detection assembly, the detection assembly comprising:
the camera is connected to the top end of the ball frame mounting plate 22;
the shell is connected to the lifting support 15, a power supply and a microcontroller are arranged in the shell, and an alarm device is arranged on the shell; preferably, the power supply can be a storage battery, or an external power supply is connected through a power line.
One side of the basketball mounting plate, which is provided with the ball frame 23, is provided with a mounting layer, and a plurality of pressure sensors are arranged in the mounting layer;
the microcontroller is respectively electrically connected with the camera, the power supply, the pressure sensor and the alarm device, and is also wirelessly connected with the monitoring terminal.
The working principle and the beneficial effects of the technical scheme are as follows: the pressure sensor is used for detecting the information of the pressure value at the position of the pressure sensor and transmitting the information to the microcontroller, when the microcontroller is preset with a pressure standard value, the microcontroller controls the alarm device to alarm when the pressure value corresponding to the information of the pressure value is larger than the pressure standard value, the alarm device prompts that the collision pressure between the basketball and the ball frame mounting plate is overlarge, and the influence of the overlarge collision pressure on the service life of the basketball hoop mounting plate is avoided by setting the pressure alarm.
The camera is used for shooting basketball movement track information and transmitting the basketball movement track information to the microcontroller, and the microcontroller transmits the basketball movement track information to the monitoring terminal, so that the relationship between the basketball movement track and whether a basketball goal is shot or not can be conveniently analyzed, and teaching guidance is more convenient.
In one embodiment, the detection apparatus further comprises: basketball induction system includes: a plurality of light emitters arranged on the ball frame mounting plate 22; and the light receiver is arranged on the ball frame mounting plate 22. If the distance is judged according to the time of the light receiver receiving the light, and if the distance is smaller than a preset standard value, a basketball (basketball) appears.
The working principle and the beneficial effects of the technical scheme are as follows: above-mentioned basketball induction system is used for responding to the basketball, works as when basketball induction system sensed the basketball, microcontroller control camera was shot, avoided the camera not sensing the basketball also long-time shooting, influences the life of camera.
In one embodiment, as shown in fig. 3, the alarm device comprises a first alarm and a second alarm; the alarm circuit also comprises a first alarm circuit and a second alarm circuit;
the first alarm circuit includes:
a first end of the third resistor R3 is connected with the output end of the controller;
the cathode of the third diode D3 is connected with the second end of the third resistor R3;
a third capacitor C3, having one end connected to the second end of the third resistor R3 and the second power source V2, and the other end connected to the anode of the third diode D3;
the power end of the second integrated chip is connected with a second power supply V2, and the output end of the second integrated chip is connected with the first alarm; preferably, the second integrated chip is an integrated chip integrated with amplification, filtering and voltage stabilization functions.
One end of the second resistor R2 is connected with a second power supply V2, and the other end of the second resistor R2 is connected with the input end of the second integrated chip;
one end of the sixth capacitor C6 is connected with the anode of the third diode D3 and the ground, and the other end of the sixth capacitor C6 is connected with the input end of the second integrated chip;
one end of the first resistor R1 is connected with the output end of the second integrated chip, and the other end is grounded;
one end of the seventh capacitor C7 is connected with the output end of the second integrated chip, and the other end of the seventh capacitor C7 is grounded;
the second alarm circuit includes:
a first diode D1, the negative pole of which is connected with the positive pole of the power supply;
the input end of the first integrated chip is connected with the anode of a power supply, and the output end of the first integrated chip is connected with the anode of a first diode D1 and the power supply end of a camera; preferably, the first integrated chip is an integrated chip integrated with a voltage stabilizing function.
One end of the first capacitor C1 is connected with the input end of the first integrated chip, and the other end of the first capacitor C1 is grounded;
one end of the fourth resistor R4 is connected with the control end of the first integrated chip;
a fifth resistor R5 which is an adjustable resistor, wherein one end of the fifth resistor R5 is connected with the other end of the fourth resistor R4, and the other end of the fifth resistor R5 is grounded;
a first end of the sixth resistor R6 is connected with the output end of the first integrated chip, and a second end of the sixth resistor R6 is connected with the control end of the first integrated chip;
the cathode of the second diode D2 is connected with the output end of the first integrated chip, and the other end of the second diode D2 is connected with the second end of the sixth resistor R6;
one end of the second capacitor C2 is grounded, and the other end of the second capacitor C2 is connected with the anode of a second diode D2;
one end of the fourth capacitor C4 is connected with the cathode of the second diode D2, and the other end of the fourth capacitor C4 is grounded;
a third logic gate U3, wherein two input ends of the third logic gate U3 are both connected with the power end of the camera;
an auxiliary power supply V1 having one end connected to the fifth diode D5;
an eleventh resistor R11, having a first terminal connected to the negative terminal of the fifth diode D5 and a second terminal connected to the power supply terminal of the third logic gate U3;
one end of the eighth capacitor C8 is connected with the second end of the eleventh resistor R11, and the other end of the eighth capacitor C8 is grounded;
a cathode of the fourth diode D4 is connected with the second end of the eleventh resistor R11, and an anode of the fourth diode D4 is grounded;
a first logic gate U1, an input terminal of which is connected to the output terminal of the third logic gate U3; the U1-U3 are all logic NOR gates.
A ninth resistor R9, the first end of which is connected with the other input end of the first logic gate U1 circuit;
the output end of the second logic gate U2 is connected with the first end of the ninth resistor R9;
a tenth resistor R10, one end of which is connected to two input ends of the second logic gate U2 circuit, and the other end of which is connected to the second end of the ninth resistor R9;
one end of the fifth capacitor C5 is connected with the second end of the ninth resistor R9, and the other end of the fifth capacitor C5 is connected with the output end of the first logic gate U1;
an eighth resistor R8, one end of which is connected with the output end of the first logic gate U1;
a base electrode of the triode Q is connected with the other end of the eighth resistor R8 and is grounded through a seventh resistor R7, and an emitting electrode of the triode Q is grounded;
one end of the second alarm is connected with the output end of the third logic gate U3, and the other end of the second alarm is connected with the collector electrode of the triode Q.
The working principle and the beneficial effects of the technical scheme are as follows: in the first alarm circuit, when the pressure value corresponding to the pressure value information is greater than a preset pressure standard value of the microcontroller, the microcontroller sends an alarm signal to the third resistor, the alarm signal is transmitted to the second integrated chip, the alarm signal enters the input end of the second integrated chip through R3, D3 and C3, R2 enters the input end of the second integrated chip through C3 and C6 for filtering, the signal is adjusted (such as amplified and filtered) through the second integrated chip, and the signals are ensured not to be weakened at R1 and C7 connected with the output end of the second integrated chip; the alarm circuit is convenient for reliable alarm.
In the second alarm circuit, the circuit composed of the first integrated chip and the circuits D1, C1, C2, C4, R4-R6 and D1 is used for adjusting the pressure of power input to the camera and adjusting the pressure to a proper pressure for the camera to use, so that the reliable work of the camera is ensured, the voltage is stabilized by the first integrated chip, the second integrated chip is protected by the D1, and the filtering can be realized by the circuits C1, C2 and C4; the circuit formed by other components in the second alarm circuit is used for detecting whether the power supply normally supplies power to the camera, when the power supply is abnormal (such as power failure), the second alarm alarms, in the circuit, C8 is an energy storage capacitor, V1, D5, R11, C8 and D4 are used for auxiliary power supply, and when the power supply is abnormal, the microcontroller is temporarily powered and the second alarm is powered for alarm.
In one embodiment, the detection apparatus further comprises:
the human body infrared distance sensor is arranged on the ball frame mounting plate and is close to the camera;
the light supplement lamp is connected to the ball frame mounting plate and is arranged close to the camera;
the camera rotating device is used for driving the camera to rotate;
the first illuminance sensor is arranged at the position, where the light supplement lamp is installed, on the ball frame installation plate;
the second illuminance sensor is arranged on the lifting bracket;
the height sensor is arranged on the ball frame mounting plate;
the angle detection device is used for detecting the angle of the camera;
when the human body infrared distance sensor senses a human body and the basketball sensing device senses that a basketball approaches the basketball rim mounting plate, the microcontroller controls the camera to rotate according to information detected by the first illumination sensor, the second illumination sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and then the microcontroller controls the camera to shoot;
the microcontroller controls the camera to rotate according to the information detected by the first illuminance sensor, the second illuminance sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and the method comprises the following steps:
step 1: determining a coefficient according to equation (1);
wherein A is coefficient, when α < B, A ═ A1；
When α is greater than or equal to B, A is equal to A2；
α is a illuminance value detected by the second illuminance sensor, β is a illuminance value detected by the first illuminance sensor, λ is a vertical distance from a ball frame mounting plate to a ball frame at the camera mounting position, e is a constant, e is 2.71828, pi is a constant, pi is 3.14159, M is a basketball mass, η is a horizontal distance from the ball frame mounting plate to the ball frame at the camera mounting position, ln () is a natural logarithm, and g is a gravity acceleration;
step 2: determining a target angle according to the formula (2) based on the basketball sensing device, the human body infrared sensor, the height sensor and the coefficient;
where θ is the target angle, θ0The angle between the current direction and the vertical direction of a camera detected by an angle detection device is detected, D is a distance value detected by a human body infrared distance sensor, L is a height value detected by a height sensor, A is a coefficient, N is the number of light emitters, and H is the distance of light rays emitted by each light emitter sensed by a light sensor;
and step 3: and the microcontroller controls the camera rotating device to enable the included angle between the camera and the vertical direction to be the target angle. Preferably, the calculation can be transmitted to the microcontroller through the monitoring terminal calculation or the microcontroller calculation.
The working principle and the beneficial effects of the technical scheme are as follows:
in the light supplement lamp, when the ambient illuminance detected by the second illuminance sensor is smaller than a preset standard value, the light supplement lamp is started to supplement light;
human infrared distance sensor is used for responding to human distance value information and gives microcontroller with it, when sensing the human body and being close to, starts basketball induction system, and above-mentioned basketball induction system is used for responding to the basketball, works as when basketball induction system senses the basketball, microcontroller control camera shoots.
The height sensor is used for detecting the height from the ball frame mounting plate to the ground;
the angle detection device is used for detecting the angle of the camera;
when the human body infrared distance sensor senses a human body and the basketball sensing device senses that a basketball approaches the ball frame mounting plate, the microcontroller controls the camera to rotate according to information detected by the first illumination sensor, the second illumination sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and then the microcontroller controls the camera to shoot so as to prevent the camera from shooting for a long time when the basketball is not sensed and the service life of the camera is influenced;
and above-mentioned formula (1) and (2) are according to the initial information of sensing the basketball (the distance information that receives of above-mentioned light sensor), information, influence coefficient information (illumination influence, the influence of ball frame installation, the influence of basketball itself) of basketball induction system, come the rotation of intelligent control camera to guarantee to shoot the effect, avoid artifical adjustment loaded down with trivial details, and more accurate reliable.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A physical education apparatus, comprising:
a head gear assembly (1);
the ball frame assembly (2) is connected to the lifting frame assembly (1);
and the basketball collecting device (3) is used for collecting the basketballs falling from the ball frame component (2).
2. A physical education instrument according to claim 1,
the lift cage assembly (1) comprises:
the mounting seat (11), the inside of the mounting seat (11) is hollow;
the two vertical threaded rods (12) are arranged in the mounting seat (11) at intervals, and the upper end and the lower end of each vertical threaded rod (12) are respectively and rotatably connected with the inner walls of the upper end and the lower end of the mounting seat (11);
the two lifting blocks (13) are respectively connected with the two vertical threaded rods (12), the lifting blocks (13) are provided with vertical internal threaded holes matched with external threads on the outer sides of the vertical threaded rods (12), and the vertical internal threaded holes are in threaded connection with the outer sides of the vertical threaded rods (12);
the first fixing block (14), the first fixing block (14) is respectively fixedly connected with the two lifting blocks (13);
the lifting support (15) is fixedly connected to the upper end of the first fixing block (14), and a through hole for lifting the lifting support (15) is formed in the upper end of the mounting seat (11);
the driving motor (16) is arranged on one side of one vertical threaded rod (12), and an output shaft of the driving motor (16) is horizontally arranged;
two second fixed blocks (17) arranged between the two vertical threaded rods (12);
the rotating rods (18) are horizontally arranged, and the rotating rods (18) are respectively and rotatably connected with the two second fixing blocks (17);
the first bevel gear (19) is fixedly connected to an output shaft of the driving motor (16);
the second bevel gear (110) is fixedly sleeved on the vertical threaded rod (12) close to the driving motor (16), and the first bevel gear (19) is in meshing transmission with the second bevel gear (110);
a third bevel gear (111) and a fourth bevel gear (112) which are respectively fixed at two ends of the rotating rod (18);
the fifth bevel gear (113) is fixedly sleeved on the vertical threaded rod (12) far away from the driving motor (16);
the second bevel gear (110) is in meshing transmission with a third bevel gear (111), and the fourth bevel gear (112) and a fifth bevel gear (113) are in meshing transmission.
3. A sports teaching device according to claim 1, wherein the ball frame assembly (2) comprises:
the first connecting bracket (21) is rotatably connected to the left side or the right side of the top end of the lifting frame assembly (1);
the ball frame mounting plate (22) is fixedly connected to one side, away from the lifting frame assembly (1), of the first connecting support (21);
the ball frame (23) is fixedly connected to the middle part of the ball frame mounting plate (22);
a plurality of first threaded through holes (24) are formed in the top of the lifting frame assembly (1) at intervals up and down, and the first threaded through holes (24) are formed in the front-back direction of the lifting frame assembly (1);
one end of each of the two second connecting supports (25) is fixedly connected to the front side and the rear side of the lower end of the first connecting support (21), and the other end of each of the two second connecting supports is provided with a second threaded through hole;
the first threaded through hole (24) and the second threaded through hole are connected through a bolt (26).
4. A sports teaching device according to claim 1, characterized in that the basketball collection means (3) comprises:
a collection frame (31);
the first ends of the four first supporting rods (32) are respectively and rotatably connected to the inner sides of four corners of the top end of the collecting frame (31), and the second ends of the first supporting rods (32) are provided with first threaded grooves along the axial direction of the first threaded grooves;
the first ends of the four second support rods (33) are respectively connected with the second ends of the four first support rods (32), and external threads matched with the first thread grooves are arranged at one ends of the second support rods (33);
a collecting net (35) connected to the inner sides of the four first support rods (32) and the four second support rods (33);
a supporting rod component is arranged between the two first supporting rods (32) on the same side;
the support rod assembly includes:
a third support bar (34) having a first end rotatably connected to one of the first support bars (32) on the same side;
the first end of the fourth supporting rod (36) is rotatably connected with the other first supporting rod (32) on the same side; the second end of the third supporting rod (34) is in threaded connection with the second end of the fourth supporting rod (36).
5. A physical education instrument according to claim 1,
the ball frame assembly (2) comprises: the middle lower part of the ball frame mounting plate (22) is provided with a ball frame (23);
further comprising: a detection assembly, the detection assembly comprising:
the camera is connected to the top end of the ball frame mounting plate (22);
the shell is connected to the lifting support (15), a power supply and a microcontroller are arranged in the shell, and an alarm device is arranged on the shell;
one side of the basketball mounting plate, which is provided with the ball frame (23), is provided with a mounting layer, and a plurality of pressure sensors are arranged in the mounting layer;
the microcontroller is respectively electrically connected with the camera, the power supply, the pressure sensor and the alarm device, and is also wirelessly connected with the monitoring terminal.
6. A physical education instrument according to claim 5 wherein the detection means further includes: basketball induction system includes: the light emitters are arranged on the ball frame mounting plate (22); and the light receiver is arranged on the ball frame mounting plate (22).
7. A physical education instrument according to claim 5 wherein the alarm means includes a first alarm and a second alarm; the alarm circuit also comprises a first alarm circuit and a second alarm circuit;
the first alarm circuit includes:
a third resistor (R3), the first end of which is connected with the output end of the controller;
a cathode of the third diode (D3) is connected with the second end of the third resistor (R3);
a third capacitor (C3), one end of which is connected with the second end of the third resistor (R3) and the second power supply (V2), and the other end of which is connected with the anode of the third diode (D3);
the power end of the second integrated chip is connected with a second power supply (V2), and the output end of the second integrated chip is connected with the first alarm;
a second resistor (R2), one end of which is connected with a second power supply (V2) and the other end is connected with the input end of the second integrated chip;
one end of the sixth capacitor (C6) is connected with the anode of the third diode (D3) and the ground, and the other end of the sixth capacitor is connected with the input end of the second integrated chip;
a first resistor (R1), one end of which is connected with the output end of the second integrated chip and the other end of which is grounded;
one end of the seventh capacitor (C7) is connected with the output end of the second integrated chip, and the other end of the seventh capacitor is grounded;
the second alarm circuit includes:
a first diode (D1) having a negative electrode connected to the positive electrode of the power supply;
the input end of the first integrated chip is connected with the anode of a power supply, and the output end of the first integrated chip is connected with the anode of a first diode (D1) and the power supply end of the camera;
a first capacitor (C1), one end of which is connected with the input end of the first integrated chip and the other end of which is grounded;
a fourth resistor (R4), one end of which is connected with the control end of the first integrated chip;
the fifth resistor (R5) is an adjustable resistor, one end of the fifth resistor (R5) is connected with the other end of the fourth resistor (R4), and the other end of the fifth resistor (R5) is grounded;
a sixth resistor (R6), wherein the first end is connected with the output end of the first integrated chip, and the second end is connected with the control end of the first integrated chip;
the cathode of the second diode (D2) is connected with the output end of the first integrated chip, and the other end of the second diode is connected with the second end of the sixth resistor (R6);
a second capacitor (C2), one end of which is grounded and the other end of which is connected with the anode of a second diode (D2);
one end of the fourth capacitor (C4) is connected with the cathode of the second diode (D2), and the other end of the fourth capacitor is grounded;
a third logic gate (U3), wherein two input ends of the third logic gate are connected with the power end of the camera;
an auxiliary power supply (V1) having one end connected to the fifth diode (D5);
an eleventh resistor (R11), having a first terminal connected to the negative terminal of the fifth diode (D5), and a second terminal connected to the power supply terminal of the third logic gate (U3);
an eighth capacitor (C8), one end of which is connected with the second end of the eleventh resistor (R11), and the other end of which is grounded;
a cathode of the fourth diode (D4) is connected with the second end of the eleventh resistor (R11), and an anode of the fourth diode (D4) is grounded;
a first logic gate (U1) having an input connected to the output of the third logic gate (U3);
a ninth resistor (R9), the first end of which is connected with the other input end of the first logic gate (U1) circuit;
the output end of the second logic gate (U2) is connected with the first end of the ninth resistor (R9);
a tenth resistor (R10), one end of which is connected with two input ends of the second logic gate (U2) circuit, and the other end of which is connected with the second end of the ninth resistor (R9);
a fifth capacitor (C5), one end of which is connected with the second end of the ninth resistor (R9), and the other end of which is connected with the output end of the first logic gate (U1);
an eighth resistor (R8) with one end connected with the output end of the first logic gate (U1);
the base of the triode (Q) is connected with the other end of the eighth resistor (R8), the base of the triode is grounded through the seventh resistor (R7), and the emitter of the triode is grounded;
one end of the second alarm is connected with the output end of the third logic gate (U3), and the other end of the second alarm is connected with the collector of the triode (Q).
8. A physical education instrument according to claim 6 wherein the detection means further includes:
the human body infrared distance sensor is arranged on the ball frame mounting plate and is close to the camera;
the light supplement lamp is connected to the ball frame mounting plate and is arranged close to the camera;
the camera rotating device is used for driving the camera to rotate;
the first illuminance sensor is arranged at the position, where the light supplement lamp is installed, on the ball frame installation plate;
the second illuminance sensor is arranged on the lifting bracket;
the height sensor is arranged on the ball frame mounting plate;
the angle detection device is used for detecting the angle of the camera;
when the human body infrared distance sensor senses a human body and the basketball sensing device senses that a basketball approaches the basketball rim mounting plate, the microcontroller controls the camera to rotate according to information detected by the first illumination sensor, the second illumination sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and then the microcontroller controls the camera to shoot;
the microcontroller controls the camera to rotate according to the information detected by the first illuminance sensor, the second illuminance sensor, the human body infrared distance sensor, the angle detection device and the height sensor, and the method comprises the following steps:
step 1: determining a coefficient according to equation (1);
wherein A is coefficient, when α < B, A ═ A1；
When α is greater than or equal to B, A is equal to A2；
α is a illuminance value detected by the second illuminance sensor, β is a illuminance value detected by the first illuminance sensor, λ is a vertical distance from a ball frame mounting plate to a ball frame at the camera mounting position, e is a constant, e is 2.71828, pi is a constant, pi is 3.14159, M is a basketball mass, η is a horizontal distance from the ball frame mounting plate to the ball frame at the camera mounting position, ln () is a natural logarithm, and g is a gravity acceleration;
step 2: determining a target angle according to the formula (2) based on the basketball sensing device, the human body infrared sensor, the height sensor and the coefficient;
where θ is the target angle, θ0The angle between the current direction and the vertical direction of a camera detected by an angle detection device is detected, D is a distance value detected by a human body infrared distance sensor, L is a height value detected by a height sensor, A is a coefficient, N is the number of light emitters, and H is the distance of light rays emitted by each light emitter sensed by a light sensor;
and step 3: and the microcontroller controls the camera rotating device to enable the included angle between the camera and the vertical direction to be the target angle.
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