Shuttlecock tester

Abstract

The utility model discloses a badminton tester, and belongs to the technical field of badminton detection. Comprising a large-screen display master control module which is connected with a host and an infrared receiving light curtain. The host is connected with the badminton pitching machine; a control panel is arranged in the infrared receiving light curtain; the control panel is connected with the large-screen display master control module and the infrared emission light curtain; the large-screen display master control module and the host are arranged on the periphery of a court, the badminton pitching machine is arranged between the badminton net and the blocking net, and the infrared receiving light curtain and the infrared emitting light curtain are arranged on the side, away from the badminton pitching machine, of the blocking net to jointly form a light curtain detection area. According to the utility model, a rectangular two-dimensional plane detection area is formed based on the infrared receiving and emitting light curtain, error detection is avoided by reasonably designing the height of a light curtain detection line and the height of the lower edge of the blocking net, and the automatic detection precision is improved. Distributed deployment is adopted, no long cable is arranged after deployment, and potential safety hazards of an examination site are reduced.

Description

Technical Field

[0001] This utility model relates to the field of badminton testing technology, and in particular to a badminton tester. Background Technology

[0002] The forehand high clear and the forehand backcourt high clear in badminton are the main components of the badminton test in the physical education entrance examination for middle school students. They are very helpful in improving physical strength and agility.

[0003] Currently, only AI-powered badminton testing devices are available on the market; sensor-based versions are not yet available for use in middle school entrance physical education exams. The high cost of these devices hinders their widespread adoption in middle school entrance exams. Due to product scarcity, most tests are judged manually, leading to inefficiency, high labor intensity, and increased human error, potentially resulting in unfairness and affecting the accuracy and impartiality of the assessment. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a badminton tester.

[0005] The purpose of this utility model is achieved through the following technical solution: a badminton testing instrument, including a large-screen display main control module, which is connected to a host computer and an infrared receiving light curtain; the host computer is connected to a badminton serving machine; a control board is installed inside the infrared receiving light curtain; the control board is connected to the large-screen display main control module and the infrared emitting light curtain; both the large-screen display main control module and the host computer are located around the perimeter of the court, the badminton serving machine is located between the net and the blocking net, and the infrared receiving light curtain and the infrared emitting light curtain are located on the side of the blocking net away from the badminton serving machine; the infrared receiving light curtain includes a longitudinal infrared receiving light curtain and a transverse infrared receiving light curtain, and the infrared emitting light curtain includes a longitudinal infrared emitting light curtain and a transverse emitting infrared receiving light curtain; the longitudinal infrared receiving light curtain and the longitudinal infrared emitting light curtain are arranged opposite each other, and the transverse infrared receiving light curtain and the transverse emitting infrared receiving light curtain are arranged opposite each other, together forming a light curtain detection area.

[0006] Preferably, the detection line of the infrared light curtain is higher than the height of the badminton shuttlecock after it lands.

[0007] Preferably, the light curtain detection line is at least 7 cm above the ground.

[0008] Preferably, the host computer and the badminton serving machine are wirelessly connected via Bluetooth.

[0009] Preferably, the host and the large-screen display main control module are connected wirelessly via 2.4G radio frequency.

[0010] Preferably, the large-screen display main control module and the control board are connected wirelessly via 433M radio frequency.

[0011] Preferably, the control board is connected to the infrared emitting light curtain via a short USB cable.

[0012] Preferably, the height of the lower edge of the barrier net is less than or equal to 0.32m.

[0013] The beneficial effects of this utility model are:

[0014] 1) Based on the rectangular two-dimensional plane detection area composed of infrared light-emitting curtains, false detections are avoided and the accuracy of automatic detection is improved by reasonably designing the height of the light curtain detection line and the height of the lower edge of the barrier net.

[0015] 2) The distributed deployment eliminates long cables, reducing security risks at the examination site. Attached Figure Description

[0016] Figure 1 The badminton tester is located away from the diagram;

[0017] Figure 2 A schematic diagram of the badminton testing equipment deployment;

[0018] Figure 3 A diagram showing the testing area for a badminton forehand high clear serve;

[0019] Figure 4 A diagram showing the testing area for a badminton forehand high clear from the backcourt.

[0020] Figure 5 This is a schematic diagram of the light curtain detection area;

[0021] Figure 6 This is a schematic diagram showing the height of the light curtain detection line;

[0022] Figure 7 This is a schematic diagram showing the height of the lower edge of the barrier netting. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] See Figures 1-7This utility model provides a technical solution: a badminton testing instrument, including a large-screen display main control module, which is connected to a host computer and an infrared receiving light curtain; the host computer is connected to a badminton serving machine; a control board is installed inside the infrared receiving light curtain; the control board is connected to the large-screen display main control module and the infrared emitting light curtain; both the large-screen display main control module and the host computer are located around the perimeter of the court, the badminton serving machine is located between the net and the blocking net, and the infrared receiving light curtain and the infrared emitting light curtain are located on the side of the blocking net away from the badminton serving machine; the infrared receiving light curtain includes a longitudinal infrared receiving light curtain and a transverse infrared receiving light curtain, and the infrared emitting light curtain includes a longitudinal infrared emitting light curtain and a transverse emitting infrared receiving light curtain; the longitudinal infrared receiving light curtain and the longitudinal infrared emitting light curtain are arranged opposite each other, and the transverse infrared receiving light curtain and the transverse emitting infrared receiving light curtain are arranged opposite each other, together forming a light curtain detection area.

[0025] In this embodiment, during the forehand high serve test, the host computer initiates the test, the infrared receiver screen detects the shuttlecock landing and reports the detection result to the large screen display module to display the valid shuttlecock count. After the test ends, the host computer uploads the result to the backend server. Figure 3 The following are the requirements for the badminton forehand high clear test venue: On a flat, clean, and softly lit indoor standard badminton singles court with a height of not less than 9 meters, a height marker line of 3.5 meters is set 3 meters away from the backcourt end line. Valid service area marker lines are set 1.5 meters (male) and 2 meters (female) in front of the backcourt end line. The area between the marker lines and the end line is the valid service area, and the marker lines are included within this area.

[0026] During the forehand high clear test, the host computer initiates the test, the badminton serving machine serves the shuttlecocks in an orderly manner as required, the infrared receiver screen detects the shuttlecock landing and reports the detection results to the large screen display module to display the valid shuttlecock count, and the host computer uploads the results to the backend server after the test ends. Figure 4 The requirements for the badminton forehand high clear test venue are as follows: On a flat, clean, and softly lit standard indoor badminton singles court with a height of at least 9 meters, a 3.5-meter-high marker line should be set 3 meters from the backcourt baseline. Marker lines should be set 1.5 meters (for boys) and 2 meters (for girls) from the backcourt baseline. Separate marker lines should be set for boys and girls. The serving machine should be placed 1.5 meters from the front edge of the front service line to the center line on the same half of the court. The landing area of ​​the shuttlecock delivered by the serving machine is a 3-37-meter x 3-meter square area formed by extending 1.5 meters to each side and 3 meters inward from the midpoint of the baseline on the opposite half of the court from the serving machine.

[0027] like Figure 5As shown, a rectangular area (i.e., the effective landing area) is enclosed by infrared light-emitting curtains (horizontal and vertical light curtains), enabling two-dimensional planar detection of badminton shuttlecock landing points within this area. This solution can automatically distinguish between the left and right halves of the area, as well as automatically determine whether the landing point is valid.

[0028] Based on the ball landing point detection in the light curtain detection area, the system uses the candidate's gender information and the current serving half-zone settings collected by the host computer. After fusing the information, the host computer sends the valid ball area range to the light curtain detection area, which can automatically determine whether the landing point is valid based on the parameters. This method can adapt to the examination standards for candidates of different genders, and can also be adapted to the examination standards of different regions through pre-examination settings.

[0029] In some embodiments, the detection line of the infrared light curtain is higher than the height of the shuttlecock after it lands.

[0030] In some embodiments, the light curtain detection line is at least 7 cm above the ground.

[0031] In this embodiment, as Figure 6 As shown, the detection line of the infrared light curtain is more than 7cm above the ground (the maximum horizontal dimension of the badminton shuttlecock is 6.8cm), which can ensure that the shuttlecock is below the detection line of the light curtain after it falls, so as not to cause false detection.

[0032] In some embodiments, the host computer and the badminton serving machine are wirelessly connected via Bluetooth.

[0033] In some embodiments, the host and the large-screen display main control module are connected wirelessly via 2.4G radio frequency.

[0034] In some embodiments, the large-screen display main control module and the control board are wirelessly connected via 433M radio frequency.

[0035] In some embodiments, the control board is connected to the infrared emitting light curtain via a short USB cable.

[0036] In some embodiments, the height of the lower edge of the barrier net is less than or equal to 0.32m.

[0037] In this embodiment, to further reduce the probability of invalid balls being miscounted, the lower edge height of the blocking net surface is at least 0.32m.

[0038] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A badminton shuttlecock tester, characterized in that: The system includes a large-screen display main control module, which connects to a host computer and an infrared receiving light curtain. The host computer is connected to a badminton serving machine. A control board is installed inside the infrared receiving light curtain. The control board connects to the large-screen display main control module and an infrared emitting light curtain. Both the large-screen display main control module and the host computer are located around the perimeter of the court. The badminton serving machine is located between the net and the blocking net. The infrared receiving light curtain and the infrared emitting light curtain are located on the side of the blocking net away from the badminton serving machine. The infrared receiving light curtain includes a vertical infrared receiving light curtain and a horizontal infrared receiving light curtain. The infrared emitting light curtain includes a vertical infrared emitting light curtain and a horizontal infrared emitting light curtain. The vertical infrared receiving light curtain and the vertical infrared emitting light curtain are arranged opposite each other, and the horizontal infrared receiving light curtain and the horizontal infrared emitting light curtain are arranged opposite each other, together forming a light curtain detection area.

2. The badminton tester according to claim 1, characterized in that: The detection line of the infrared light curtain is higher than the height of the badminton shuttlecock after it lands.

3. The badminton tester according to claim 2, characterized in that: The light curtain detection line is at least 7cm above the ground.

4. The badminton tester according to claim 1, characterized in that: The host unit is wirelessly connected to the badminton serving machine via Bluetooth.

5. The badminton tester according to claim 1, characterized in that: The host and the large-screen display main control module are connected wirelessly via 2.4G radio frequency.

6. The badminton tester according to claim 1, characterized in that: The large-screen display main control module and the control board are connected wirelessly via 433M radio frequency.

7. The badminton tester according to claim 1, characterized in that: The control board is connected to the infrared light curtain via a short USB cable.

8. The badminton tester according to claim 1, characterized in that: The height of the lower edge of the barrier net is less than or equal to 0.32m.

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