CN112863139A - Badminton service violation alarm device and method - Google Patents
Badminton service violation alarm device and method Download PDFInfo
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- CN112863139A CN112863139A CN202110065312.0A CN202110065312A CN112863139A CN 112863139 A CN112863139 A CN 112863139A CN 202110065312 A CN202110065312 A CN 202110065312A CN 112863139 A CN112863139 A CN 112863139A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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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
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
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Abstract
The invention belongs to the technical field of equipment for badminton match and discloses a badminton service violation alarm device, wherein support columns are fixed at four corners of the top wall of a support plate, a support box is fixed at the top ends of the four support columns, an alarm body is arranged on the outer top wall of the support box, a rectangular limiting hole is formed in the middle position of the top wall of the support box, a fixture block is fixed at the bottom end of the alarm body and movably sleeved inside the limiting hole, limiting grooves are formed in the side walls of two sides of the fixture block positioned inside the support box, a movable hole is formed in the middle position of the bottom wall of the support box, a vertical connecting column is movably sleeved inside the movable hole, the bottom end of the connecting column extends to the lower side of the support box and is fixedly connected with a horizontal pressing plate, and the top end of the connecting column extends to the inside of the support box and is fixedly connected with a lifting block, the convenience maintainer overhauls, and the practicality is higher, is suitable for using widely.
Description
Technical Field
The invention belongs to the technical field of equipment for badminton games, and particularly relates to a badminton service violation alarm device and a badminton service violation alarm method.
Background
In the process of badminton game, when a badminton player serves illegally, the referee can control the badminton service violation alarm to give an alarm so as to warn the badminton player that the badminton player serves illegally. The badminton service violation alarm generally realizes supporting through the alarm base, and when the badminton service violation alarm broke down, maintainer need pull the badminton service violation alarm off from the alarm base earlier, overhauls the badminton service violation alarm again.
But the required operation of current badminton service violation alarm is pulled apart from the alarm base is complicated, overhauls the badminton service violation alarm for maintainer and causes inconvenience, and the practicality is relatively poor.
In summary, the problems of the prior art include: the existing alarm device is manually controlled by a judge, cannot automatically alarm and has inaccurate subjective judgment result; meanwhile, the conventional badminton service violation alarm is complex to detach from the alarm base, inconvenience is caused to overhaul the badminton service violation alarm for maintainers, and the practicability is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an alarm device for the violation of badminton service.
The invention is realized in this way, a badminton service violation alarm device is provided with:
a support plate;
the four corners of the top wall of the supporting plate are respectively fixed with a supporting column, the top ends of the four supporting columns are respectively fixed with a supporting box, the outer top wall of each supporting box is provided with an alarm body, the middle position of the top wall of each supporting box is provided with a rectangular limiting hole, the bottom end of each alarm body is fixed with a clamping block, each clamping block is movably sleeved in each limiting hole, the side walls of the two sides of each clamping block, which are positioned in each supporting box, are respectively provided with a limiting groove, the middle position of the bottom wall of each supporting box is provided with a movable hole, the inner movable sleeve of each movable hole is provided with a vertical connecting column, the bottom end of each connecting column extends to the lower side of each supporting box and is fixedly connected with a horizontal pressing plate, the top end of each connecting column extends to the inner part of each supporting box and is fixedly connected with a lifting block, and the inner bottom wall of each supporting box, two sides of the inner bottom wall of the supporting box are both connected with vertical transmission plates in a sliding manner, horizontal clamping bolts are fixed on the mutually-close side walls of the two transmission plates positioned on the upper side of the lifting block, the mutually-close sides of the two clamping bolts are respectively movably sleeved in the two limiting grooves, the mutually-close side walls of the two transmission plates positioned on the lower side of the lifting block are respectively hinged with a transmission rod which is obliquely arranged, and the mutually-close ends of the two transmission rods are respectively hinged with the two side ends of the lifting block;
a handle is fixed at the side end of the alarm body, and the pressing plate is in clearance fit with the outer rings of the four supporting columns;
sliding grooves are formed in the inner bottom walls of the supporting boxes on the two sides of the movable hole along the length direction, sliding blocks are arranged inside the sliding grooves in a sliding mode, and the two driving plates are fixed to the top ends of the two sliding blocks respectively;
badminton service violation alarm device includes:
the shooting module is used for acquiring squint image data of a ball sender when the ball is sent by utilizing the shooting equipment;
the image data processing module is used for processing the acquired image data;
and the distance calculation module is used for calculating the distance between the ball holding height of the ball sender and the ground based on the processed image data.
Furthermore, the size of the limiting hole is matched with that of the clamping block, and the size of the limiting groove is matched with that of the clamping bolt.
Furthermore, the two transmission rods are arranged in a splayed shape.
Furthermore, the spring is sleeved on the outer ring of the connecting column.
Furthermore, a plurality of anti-skidding grooves are formed in the bottom wall of the supporting plate.
Further, badminton service violation alarm device still includes:
the judging module is used for judging whether the calculated distance exceeds a preset threshold value; the preset threshold value is 1.15 meters;
the alarm module is used for alarming by using an alarm when the calculated distance exceeds a preset threshold value;
the fixing module is used for fixing and supporting the alarm by utilizing the supporting plate, the supporting column, the supporting box and other structures;
and the separation module is used for dismounting the badminton service violation alarm from the base and carrying out maintenance.
Further, the oblique-view image includes a forward oblique image and a side oblique image.
Another object of the present invention is to provide a badminton service violation alarm method applied to the badminton service violation alarm system, where the badminton service violation alarm method includes:
the method comprises the following steps that firstly, image data of a ball dispenser during ball serving are obtained through a camera module by utilizing camera equipment; processing the acquired image data through an image data processing module;
calculating the distance between the ball holding height of the ball sender and the ground through a distance calculation module based on the processed image data; judging whether the calculated distance exceeds a preset threshold value or not through a judging module;
and step three, when the calculated distance exceeds a preset threshold value through the alarm module, an alarm is used for alarming.
Further, the processing the acquired image data by the image data processing module includes:
denoising and enhancing the acquired image data; and performing keystone correction on the enhanced forward oblique image, and performing keystone correction on the enhanced side oblique image after rotating.
Further, the step of calculating the distance between the ball holding height of the ball sender and the ground through the distance calculation module based on the processed image data comprises the following steps:
(1) horizontally expanding the enhanced orthorhombic image to obtain a horizontal correction image; carrying out inverse curve interpolation correction on the distortion of the obtained horizontal correction image in the vertical direction to obtain an inverse interpolation image;
(2) determining pixel points of the shuttlecocks and ground pixel points vertically corresponding to the pixel points of the shuttlecocks in the obtained reciprocal interpolation graph, and calculating the distance between the determined pixel points of the shuttlecocks and the positions on the reference object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the shuttlecocks;
(3) based on the calculated distance between the pixel points of the badminton and the positions on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton, the pixel points of the badminton and the coordinates of the objects on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton are positioned;
(4) and determining the distance between the badminton and the ground based on the pixel points of the badminton and the coordinates of the object on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton.
The invention has the beneficial effects that: through backup pad, support column, according to board, spliced pole, supporting box, alarm body, handle, activity hole, spring, transfer line, elevator, bayonet catch, spacing hole, fixture block, spacing groove and driving plate's mating reaction, can make badminton offence alarm break away from required easy operation from the alarm base, can make things convenient for the maintainer to overhaul badminton offence alarm, the effectual practicality that has promoted badminton offence alarm.
The alarm base is novel in structure, convenient to detach from the alarm base, convenient for overhaul personnel to overhaul, high in practicability and suitable for popularization and use.
The invention calculates the real distance between the ball holding position of the ball dispenser and the ground based on the acquired ball serving image, judges the distance with the preset threshold value intelligently and automatically, and alarms by using the alarm in case of violation, thereby realizing quantitative judgment and automatic alarm of the ball serving, avoiding the phenomena of misjudgment and the like caused by manual judgment in the prior art and improving the judgment speed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a badminton service violation alarm device provided by an embodiment of the invention;
FIG. 2 is a sectional view of a badminton service violation alarm device provided by an embodiment of the invention;
fig. 3 is a partially enlarged view of a portion a provided in an embodiment of the present invention.
In FIGS. 1-3: 1. a support plate; 2. a support pillar; 3. pressing a plate; 4. connecting columns; 5. a support box; 6. an alarm body; 7. a handle; 8. a movable hole; 9. a spring; 10. a transmission rod; 11. a lifting block; 12. fastening a bolt; 13. a limiting hole; 14. a clamping block; 15. a limiting groove; 16. a drive plate.
FIG. 4 is a schematic structural diagram of a badminton service violation alarm system provided by the embodiment of the invention;
in the figure: 21. a camera module; 22. an image data processing module; 23. a distance calculation module; 24. a judgment module; 25. an alarm module; 26. a fixed module; 27. and (5) a separation module.
FIG. 5 is a flow chart of a badminton service violation alarm method provided by the embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following 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.
Aiming at the problems in the prior art, the invention provides an alarm device for the violation of badminton service, which is described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, in the badminton service violation alarm device provided by the embodiment of the present invention, support columns 2 are fixed at four corners of a top wall of a support plate 1, a support box 5 is fixed at top ends of the four support columns 2, an alarm body 6 is installed on an outer top wall of the support box 5, a side end of the alarm body 6 is connected to a button switch through a wire, the alarm body 6 is controllable to open and close through the button switch, a rectangular limit hole 13 is formed in a middle position of the top wall of the support box 5, a fixture block 14 is fixed at a bottom end of the alarm body 6, the fixture block 14 is movably sleeved inside the limit hole 13, limit grooves 15 are formed on two side walls of the fixture block 14 inside the support box 5, a movable hole 8 is formed in a middle position of a bottom wall of the support box 5, a vertical connection column 4 is movably sleeved inside the movable hole 8, a bottom end of the connection column 4 extends to a lower side of the support box 5 and is fixedly connected, the top of spliced pole 4 extends to the inside and the fixedly connected with lifter 11 of supporting box 5, the inner diapire of supporting box 5 is connected with vertically spring 9 with the diapire of lifter 11, the equal sliding connection in both sides of the inner diapire of supporting box 5 has vertically driving plate 16, all be fixed with horizontally bolt 12 on two driving plate 16 mutual approaching of lifter 11 upside lateral walls, two inside of spacing groove 15 are located to one side that two bolts 12 are close to each other movable sleeve respectively, it has the transfer line 10 that is the slope setting all to articulate on the lateral wall that two driving plate 16 mutual approaching of lifter 11 downside, the one end that two transfer lines 10 are close to each other is articulated with the both sides side end of lifter 11 respectively mutually.
Preferably, a handle 7 is fixed at the side end of the alarm body 6, and the pressing plate 3 is in clearance fit with the outer rings of the four supporting columns 2, so that the pressing plate 3 and the connecting column 4 can be lifted stably.
As preferred, all seted up the spout along length direction on the interior diapire of the supporting box 5 that is located activity hole 8 both sides, the inside slip of spout is provided with the slider, and two driving plates 16 are fixed respectively on the top of two sliders for driving plate 16 can steadily horizontal migration.
Preferably, the size of the limiting hole 13 is matched with that of the latch 14, and the size of the limiting groove 15 is matched with that of the latch 12, so that the stability of the latch 14 is high.
Preferably, the two transmission rods 10 are arranged in a figure of eight.
Preferably, the spring 9 is sleeved on the outer ring of the connecting column 4, so that the stability of the spring 9 is high.
Preferably, the bottom wall of the supporting plate 1 is provided with a plurality of anti-slip grooves, so that the stability of the supporting plate 1 is high.
As shown in fig. 4, the badminton service violation alarm system provided by the embodiment of the present invention includes:
the camera module 21 is used for acquiring squint image data of a ball sender when the ball is sent by using camera equipment;
an image data processing module 22, configured to process the acquired image data;
the distance calculation module 23 is used for calculating the distance between the ball holding height of the ball sender and the ground based on the processed image data;
a judging module 24, configured to judge whether the calculated distance exceeds a preset threshold; the preset threshold value is 1.15 meters;
the alarm module 25 is used for alarming by using an alarm when the calculated distance exceeds a preset threshold value;
the fixing module 26 is used for fixing and supporting the alarm by utilizing a supporting plate, a supporting column, a supporting box and other structures;
and the separation module 27 is used for detaching the badminton service violation alarm from the base and carrying out maintenance.
The squint image provided by the embodiment of the invention comprises a forward squint image and a side squint image.
As shown in fig. 5, the badminton service violation alarm method provided by the embodiment of the invention comprises the following steps:
s101, acquiring image data of a ball dispenser when the ball dispenser serves a ball by using camera equipment through a camera module; processing the acquired image data through an image data processing module;
s102, calculating the distance between the ball holding height of the ball sender and the ground through a distance calculation module based on the processed image data; judging whether the calculated distance exceeds a preset threshold value or not through a judging module;
and S103, when the calculated distance exceeds a preset threshold value, an alarm is used for alarming through the alarm module.
The processing of the acquired image data by the image data processing module provided by the embodiment of the invention comprises the following steps:
denoising and enhancing the acquired image data; and performing keystone correction on the enhanced forward oblique image, and performing keystone correction on the enhanced side oblique image after rotating.
The embodiment of the invention provides a method for calculating the distance between the ball holding height of a ball sender and the ground through a distance calculation module based on processed image data, which comprises the following steps:
(1) horizontally expanding the enhanced orthorhombic image to obtain a horizontal correction image; carrying out inverse curve interpolation correction on the distortion of the obtained horizontal correction image in the vertical direction to obtain an inverse interpolation image;
(2) determining pixel points of the shuttlecocks and ground pixel points vertically corresponding to the pixel points of the shuttlecocks in the obtained reciprocal interpolation graph, and calculating the distance between the determined pixel points of the shuttlecocks and the positions on the reference object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the shuttlecocks;
(3) based on the calculated distance between the pixel points of the badminton and the positions on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton, the pixel points of the badminton and the coordinates of the objects on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton are positioned;
(4) and determining the distance between the badminton and the ground based on the pixel points of the badminton and the coordinates of the object on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton.
The technical solution of the present invention is further illustrated by the following specific examples.
Example 1:
when the alarm for the abnormal badminton service condition needs to be detached from the alarm base, the supporting plate 1, the supporting column 2 and the supporting box 5 form the alarm base, the pressing plate 3 is pressed downwards to drive the connecting column 4 to descend, the lifting block 11 is driven to descend and the spring 9 is compressed, the lifting block 11 drives the end, close to each other, of the two transmission rods 10 to descend, the end, far away from each other, of the two transmission rods 10 drives the two transmission plates 16 to be far away from each other, the two clamping bolts 12 are driven to be far away from each other until the two clamping bolts 12 move to the two sides of the clamping block 14 respectively, the clamping bolts 12 can be completely separated from the limiting groove 15, the handle 7 is lifted upwards to drive the alarm body 6 and the clamping block 14 to ascend until the clamping block 14 rises above the supporting box 5, and the clamping block 14 can be completely separated from the limiting hole 13, can accomplish and tear badminton service violation alarm off from the alarm base, the easy operation that badminton service violation alarm was torn off from the alarm base makes things convenient for the maintainer to overhaul badminton service violation alarm.
The alarm base is novel in structure, convenient to detach from the alarm base, convenient for overhaul personnel to overhaul, high in practicability and suitable for popularization and use.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a badminton service violation alarm device which characterized in that, badminton service violation alarm device is provided with:
a support plate;
supporting columns are fixed at four corners of the top wall of the supporting plate, supporting boxes are fixed at the top ends of the four supporting columns, the alarm body is arranged on the outer top wall of the supporting box, a rectangular limiting hole is arranged in the middle of the top wall of the supporting box, a clamping block is fixed at the bottom end of the alarm body, the clamping block is movably sleeved in the limiting hole, limiting grooves are formed in the side walls of the two sides of the clamping block positioned in the supporting box, a movable hole is arranged in the middle of the bottom wall of the supporting box, a vertical connecting column is movably sleeved in the movable hole, the bottom end of the connecting column extends to the lower side of the supporting box and is fixedly connected with a horizontal pressing plate, the top end of the connecting column extends to the inside of the supporting box and is fixedly connected with a lifting block, and a vertical spring is connected between the inner bottom wall of the supporting box and the bottom wall of the lifting block;
badminton service violation alarm system still is provided with:
the shooting module is used for acquiring squint image data of a ball sender when the ball is sent by utilizing the shooting equipment;
the image data processing module is used for processing the acquired image data;
and the distance calculation module is used for calculating the distance between the ball holding height of the ball sender and the ground based on the processed image data.
2. The badminton service violation alarm device according to claim, wherein two sides of the inner bottom wall of the support box are slidably connected with vertical transmission plates, two mutually adjacent side walls of the two transmission plates positioned on the upper side of the lifting block are respectively fixed with a horizontal clamping bolt, one mutually adjacent sides of the two clamping bolts are respectively movably sleeved inside the two limiting grooves, mutually adjacent side walls of the two transmission plates positioned on the lower side of the lifting block are respectively hinged with a transmission rod which is obliquely arranged, and mutually adjacent ends of the two transmission rods are respectively hinged with two side ends of the lifting block;
a handle is fixed at the side end of the alarm body, and the pressing plate is in clearance fit with the outer rings of the four supporting columns;
sliding grooves are formed in the inner bottom walls of the supporting boxes on the two sides of the movable hole along the length direction, sliding blocks are arranged inside the sliding grooves in a sliding mode, and the two driving plates are fixed to the top ends of the two sliding blocks respectively;
the size of the limiting hole is matched with that of the clamping block, and the size of the limiting groove is matched with that of the clamping bolt.
3. The shuttlecock service violation alarm device as in claim wherein two of said transmission rods are arranged in a "figure eight" configuration.
4. The shuttlecock service violation alarm device as in claim wherein said spring is sleeved on the outer ring of said connecting post.
5. The shuttlecock service violation alarm device as in claim wherein the bottom wall of the support plate is provided with a plurality of anti-slip grooves.
6. The shuttlecock service violation alarm device of claim wherein said shuttlecock service violation alarm device further comprises:
the shooting module is used for acquiring squint image data of a ball sender when the ball is sent by utilizing the shooting equipment;
the image data processing module is used for processing the acquired image data;
the distance calculation module is used for calculating the distance between the ball holding height of the ball sender and the ground based on the processed image data;
the judging module is used for judging whether the calculated distance exceeds a preset threshold value; the preset threshold value is 1.15 meters;
the alarm module is used for alarming by using an alarm when the calculated distance exceeds a preset threshold value;
the fixing module is used for fixing and supporting the alarm by utilizing the supporting plate, the supporting column, the supporting box and other structures;
and the separation module is used for dismounting the badminton service violation alarm from the base and carrying out maintenance.
7. The shuttlecock service violation alarm system of claim 6 wherein the oblique view images comprise a forward oblique image and a side oblique image.
8. A badminton service violation alarm method applied to the badminton service violation alarm system of claims 6-7, wherein the badminton service violation alarm method comprises the following steps:
the method comprises the following steps that firstly, image data of a ball dispenser during ball serving are obtained through a camera module by utilizing camera equipment; processing the acquired image data through an image data processing module;
calculating the distance between the ball holding height of the ball sender and the ground through a distance calculation module based on the processed image data; judging whether the calculated distance exceeds a preset threshold value or not through a judging module;
and step three, when the calculated distance exceeds a preset threshold value through the alarm module, an alarm is used for alarming.
9. The badminton service violation alarm method according to claim 8, wherein the processing the acquired image data by the image data processing module comprises:
denoising and enhancing the acquired image data; and performing keystone correction on the enhanced forward oblique image, and performing keystone correction on the enhanced side oblique image after rotating.
10. The shuttlecock service violation alarm method of claim 8 wherein calculating, by the distance calculation module based on the processed image data, the distance of the height at which the ball is taken by the ball sender from the ground comprises:
(1) horizontally expanding the enhanced orthorhombic image to obtain a horizontal correction image; carrying out inverse curve interpolation correction on the distortion of the obtained horizontal correction image in the vertical direction to obtain an inverse interpolation image;
(2) determining pixel points of the shuttlecocks and ground pixel points vertically corresponding to the pixel points of the shuttlecocks in the obtained reciprocal interpolation graph, and calculating the distance between the determined pixel points of the shuttlecocks and the positions on the reference object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the shuttlecocks;
(3) based on the calculated distance between the pixel points of the badminton and the positions on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton, the pixel points of the badminton and the coordinates of the objects on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton are positioned;
(4) and determining the distance between the badminton and the ground based on the pixel points of the badminton and the coordinates of the object on the object plane corresponding to the ground pixel points vertically corresponding to the pixel points of the badminton.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110065312.0A CN112863139A (en) | 2021-01-18 | 2021-01-18 | Badminton service violation alarm device and method |
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| CN202110065312.0A CN112863139A (en) | 2021-01-18 | 2021-01-18 | Badminton service violation alarm device and method |
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| CN109045662A (en) * | 2018-08-27 | 2018-12-21 | 李泽栋 | The shuttlecock service judge auxiliary system of view-based access control model |
| CN109931870A (en) * | 2019-04-03 | 2019-06-25 | 山东大学 | A kind of height detection method and device of view-based access control model detection |
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Application publication date: 20210528 |
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| RJ01 | Rejection of invention patent application after publication |