Adjustable reach height detection equipment and method

By combining the LCD panel and the sliding rod scale, the problem of insufficient accuracy of existing high-tech equipment is solved, and higher measurement accuracy and stability are achieved, cost is reduced, and it is adapted to different groups of people and environments to meet personalized needs.

CN120324844APending Publication Date: 2025-07-18石远贵
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Patent Information

Application Number
CN202510483248.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

The existing high-level detection equipment is insufficient in accuracy and cannot accurately reflect the athlete's real high-level ability, resulting in the injustice of training plan formulation and event selection.

Method used

The liquid crystal panel is combined with the scale on the sliding rod, and the height of the touch height is determined by reading the sum of the scale value of the sliding rod and the corresponding scale value of the mark vertex on the LCD panel. Combining the adjustment components and the fixing components, personalized adjustment and stability of the equipment are achieved. A monochrome liquid crystal panel and fingertip pen are used to improve measurement accuracy and stability.

Benefits of technology

It achieves higher measurement accuracy, reduces production costs, expands the consumer group, has strong equipment stability and wide adaptability, and is suitable for different usage environments and people.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

The invention relates to the technical field of sports equipment, and discloses an adjustable reach height detection device and method, and the device comprises a base, the upper surface of the base is fixedly connected with a first supporting rod, the outer wall of the first supporting rod is fixedly connected with a limiting assembly, and the interior of the first supporting rod is slidably connected with an adjusting assembly. A fixing assembly is fixedly connected to the top end of the adjusting assembly, a fixing frame is arranged on the outer wall of the second supporting rod, a liquid crystal board is fixedly connected to the inner wall of the fixing frame, a graduated scale is fixedly connected to the outer wall of the fixing frame, a water bag is fixedly connected to the upper surface of the base, and a fingertip pen is arranged on the outer wall of the top end of the first supporting rod. The liquid crystal board is combined with the scales on the sliding rod, the reach height is determined by reading the sum of the scale values of the sliding rod and the scale values corresponding to the vertexes of the traces on the liquid crystal board, and the measurement is more accurate compared with a centimeter-level-precision plectrum reach device in the market.
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Description

Technical Field

[0001] The present invention relates to the technical field of sports equipment, and particularly to an adjustable high jump height detection device and method. Background Art

[0002] In the fields of sports training and physical fitness testing, high jump height detection is one of the important means to evaluate an individual's physical fitness and athletic ability. It is widely used in school physical education courses, professional athlete training, and the selection process of various sports events. With the increasing attention of people to health and sports, the demand for high jump height detection devices is also growing day by day, which promotes the continuous development of related technologies.

[0003] In the current market, the common high jump height detection devices are mainly the dial high jumpers with centimeter-level accuracy. In actual use, due to their accuracy limitations, they can only be accurate to centimeters, and there are large errors in measuring the high jump height. In some sports event selections or professional athlete training evaluation scenarios that require precise comparison of high jump results, the centimeter-level accuracy cannot accurately reflect the true high jump ability of athletes, and subtle height differences may be ignored, resulting in inaccurate evaluation of athletes and affecting the formulation of training plans and the fairness of event selections. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an adjustable high jump height detection device and method, which solves the problem of large errors in measuring the high jump height by common high jump height detection devices.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: An adjustable high jump height detection device includes a base. A first support rod is fixedly connected to the upper surface of the base. A limiting component is fixedly connected to the outer wall of the first support rod. An adjusting component is slidably connected to the inside of the first support rod. The limiting component is arranged at the junction of the first support rod and the adjusting component. The top of the adjusting component is fixedly connected to a fixing component. A second support rod is arranged inside the fixing component. A fixing frame is arranged on the outer wall of the second support rod. A liquid crystal panel is fixedly connected to the inner wall of the fixing frame. A scale is fixedly connected to the outer wall of the fixing frame. A water bag is fixedly connected to the upper surface of the base. The inner wall of the water bag is fixedly connected to the lower outer wall of the first support rod. A fingertip pen is arranged on the outer wall of the top of the first support rod.

[0006] Preferably, the fixing component includes a mounting post. The outer wall of the mounting post is fixedly connected to the top of the adjusting component. A threaded post is threadedly connected to the upper side inside of the mounting post. A grip is fixedly connected to the top of the threaded post.

[0007] Preferably, the adjusting component includes a sliding rod, the outer wall of the sliding rod is slidably connected to the inside of the first support rod, and a scale line is arranged on the outer wall of the sliding rod.

[0008] Preferably, the limiting component includes a metal sheet, the inner wall of the metal sheet is arranged on the outer wall of the first support rod, a first threaded button is threadedly connected to the upper side inside the metal sheet, and a second threaded button is threadedly connected to the lower side inside the metal sheet.

[0009] Preferably, a water inlet is provided inside the water bag.

[0010] Preferably, the liquid crystal panel is a monochromatic liquid crystal drawing board, and only supports color display by pressing with the fingertip pen.

[0011] Preferably, the fingertip pen includes three different sizes, which are respectively adapted for children, teenagers and adults to use.

[0012] Preferably, the fixing frame is in an inverted L shape and is fixed to the outer wall of the second support rod by screws.

[0013] Preferably, the scale is separately arranged from the liquid crystal panel.

[0014] Preferably, a method for using an adjustable height detection device for vertical jump includes the following steps:

[0015] S1. Equipment preparation: Fill the water bag with water through the water inlet. After the water injection is completed, place the equipment on a flat and open site to avoid obstacles around affecting the test.

[0016] S2. Height adjustment: Adjust the height of the equipment according to the height of the user. First, insert it into the inside of the installation column, rotate the grip, the grip drives the threaded column to rotate, the threaded column is threadedly connected to the installation column, and the threaded column will fix the second support rod inside the installation column. Then, pull up the sliding rod. There is a scale line on the outer wall. Observe the scale line and adjust the sliding rod to the appropriate height. At this time, the metal sheet of the limiting component will play a certain limiting role on the sliding rod. Then, fix the position of the sliding rod by tightening the first threaded button and the second threaded button to ensure that the height of the equipment will not change during the test.

[0017] S3. Test preparation and vertical jump test: The user selects a fingertip pen suitable for their own size. After wearing the fingertip pen, stand at a suitable position in front of the equipment and get ready for the vertical jump. The user jumps up and touches the liquid crystal panel with the finger wearing the fingertip pen.

[0018] S4. Height calculation: Read the scale value on the sliding rod and add the scale value corresponding to the vertex of the mark on the liquid crystal panel, which is the vertical jump height of the user.

[0019] The present invention provides an adjustable height detection device for vertical jump and a method. It has the following beneficial effects:

[0020] 1. The present invention adopts a liquid crystal panel combined with scales on a sliding rod, and determines the height of the high jump by reading the sum of the scale value of the sliding rod and the corresponding scale value of the vertex of the trace on the liquid crystal panel. Compared with the market's centimeter-level precision dial high jump measuring device, the measurement is more accurate. At the same time, the liquid crystal panel adopts cholesteric liquid crystal or pressure-sensitive liquid crystal technology, with a simple structure, no glass layer, being drop-resistant and pressure-resistant, having strong environmental adaptability, a long service life, and low maintenance costs.

[0021] 2. In the present invention, the adjustment component slides within the first support rod, and there are scale lines on the outer wall, enabling precise height adjustment. The fixing component can firmly fix the second support rod. By rotating the grip to adjust the threaded column, the second support rod can be fixed at an appropriate position, enabling the device to be adjusted personalized according to the heights of different users, meeting the usage requirements of children, teenagers, and adults.

[0022] 3. The cost of the 8.5-inch monochrome liquid crystal drawing board used in the present invention does not exceed 10 yuan, and the estimated overall cost of the machine is about 80 yuan, which is much lower than the mainstream dial high jump measuring devices and electronic announcement high jump measuring devices on the market, reducing the production cost and expanding the consumer group.

[0023] 4. The overall weight of the present invention is about 5 kg (including the water bag after filling with water), and it is 2.7 kg without the water bag. It can be carried to various venues with a storage bag for use. Filling the water bag can increase the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention

[0025] Figure 2 is a partial structural schematic diagram of the base of the present invention;

[0026] Figure 3 is the present invention Figure 2 is an enlarged schematic diagram at A in the present invention;

[0027] Figure 4 is a partial structural schematic diagram of the sliding rod of the present invention;

[0028] Figure 5 is a partial structural schematic diagram of the fixing component of the present invention;

[0029] Figure 6 is a partial structural schematic diagram of the limiting component of the present invention;

[0030] Figure 7 is a partial structural schematic diagram of the water bag of the present invention;

[0031] Figure 8 is a partial structural schematic diagram of the fingertip pen of the present invention;

[0032] Figure 9Flowchart of the usage method of an adjustable height detection device for high-touching of the present invention.

[0033] Among them, 1. Base; 2. First support rod; 3. Limit component; 31. Metal sheet; 32. First thread buckle; 33. Second thread buckle; 4. Adjustment component; 41. Sliding rod; 42. Scale line; 5. Fixing component; 51. Mounting column; 52. Threaded column; 53. Grip; 6. Second support rod; 7. Fixed frame; 8. Liquid crystal panel; 9. Scale; 10. Finger tip pen; 11. Water bag; 12. Water inlet. Detailed implementation manners

[0034] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to the attach Figure 1 -attach Figure 3 , an embodiment of the present invention provides an adjustable height detection device for high-touching, including a base 1, the upper surface of the base 1 is fixedly connected with a first support rod 2, the outer wall of the first support rod 2 is fixedly connected with a limit component 3, the inside of the first support rod 2 is slidably connected with an adjustment component 4, the limit component 3 is arranged at the junction of the first support rod 2 and the adjustment component 4, the top of the adjustment component 4 is fixedly connected with a fixing component 5, the inside of the fixing component 5 is provided with a second support rod 6, the outer wall of the second support rod 6 is provided with a fixed frame 7, the inner wall of the fixed frame 7 is fixedly connected with a liquid crystal panel 8, the outer wall of the fixed frame 7 is fixedly connected with a scale 9, the upper surface of the base 1 is fixedly connected with a water bag 11, the inner wall of the water bag 11 is fixedly connected to the lower outer wall of the first support rod 2, and a finger tip pen 10 is arranged on the top outer wall of the first support rod 2.

[0036] Specifically, the adjustment component 4 can slide inside the first support rod 2, and through it, the overall height of the device can be flexibly adjusted to adapt to users of different heights. The scale line 42 on the outer wall is convenient for precise height adjustment. The fixing component 5 at the top of the adjustment component 4 is used to stabilize the second support rod 6 to ensure its firm installation and avoid shaking during the test. The water bag 11 on the base 1 increases the weight at the bottom of the device and plays a role in stabilizing the device. The liquid crystal panel 8 can retain the historical records of multiple takeoff results, which is convenient for high-touching comparison. The finger tip pen 10 is installed at the top detail of the first support rod 2, which allows the high-touching person not to bend down to pick up the finger tip pen 10 and is also used to fix the finger tip pen 10. There is a button on the outside of the liquid crystal panel 8, and pressing the button can clear the high-touching data at one key. The shape of the first support rod 2 is thinner at the top and thicker at the bottom.

[0037] Please refer to the attach Figure 2 and attachFigure 5 The fixing component 5 includes a mounting post 51. The outer wall of the mounting post 51 is fixedly connected to the top end of the adjusting component 4. A threaded post 52 is threadedly connected to the upper side inside of the mounting post 51, and a grip 53 is fixedly connected to the top end of the threaded post 52.

[0038] Specifically, when the grip 53 is rotated, the threaded post 52 rotates accordingly. Using the transmission principle of the thread, the position of the second support rod 6 within the mounting post 51 can be precisely controlled. The grip 53 increases the force application area, facilitating the operation of the user. By adjusting the threaded post 52, the second support rod 6 can be firmly fixed inside the mounting post 51, ensuring that when the device is in use, the upper components are stable and the accuracy of the height measurement is not affected by shaking.

[0039] Please refer to the attached Figure 4 and the attached Figure 7 The adjusting component 4 includes a sliding rod 41. The outer wall of the sliding rod 41 is slidably connected inside the first support rod 2, and scale lines 42 are provided on the outer wall of the sliding rod 41.

[0040] Specifically, the scale lines 42 are used for the user to directly and clearly read the scale when adjusting the height of the device, achieving precise control of the height of the sliding rod 41. The sliding rod 41 is divided into two sections. The first section functions to hold the scale lines 42. In the second section, during long-term use by the user, the second support rod 6 will bend downward under the influence of gravity, resulting in height deviation and measurement error. By manually pulling the adjusting component 4 and tightening the first thread fastener 32 and the second thread fastener 33 to fix the sliding rod 41, the error can be balanced, making the adjustment process more convenient and efficient, ensuring the accuracy of each height adjustment. The sliding rod 41 can flexibly adjust its position according to the height of the user, enabling the device to adapt to different people.

[0041] Please refer to the attached Figure 6 The limiting component 3 includes a metal sheet 31. The inner wall of the metal sheet 31 is arranged on the outer wall of the first support rod 2. A first thread fastener 32 is threadedly connected to the upper side inside of the metal sheet 31, and a second thread fastener 33 is threadedly connected to the lower side inside of the metal sheet 31.

[0042] Specifically, the inner wall of the metal sheet 31 is sleeved on the outer wall of the first support rod 2, and the metal sheet 31 preliminarily limits the inserted sliding rod 41 by its own elasticity. After adjusting the sliding rod 41 to an appropriate height, the metal sheet 31 can prevent it from slipping or moving easily, providing a certain degree of stability. When the first thread fastener 32 and the second thread fastener 33 are tightened, the metal sheet 31 can be further pressed to tightly hold the sliding rod 41, so that the sliding rod 41 will not change its position due to external force or vibration, ensuring the stability of the device height and thus improving the accuracy of the height measurement data.

[0043] Please refer to the attached Figure 3 and Figure 8, the liquid crystal panel 8 is a monochrome liquid crystal drawing board, which only supports color display by pressing with the fingertip pen 10; the fingertip pen 10 includes three different sizes, which are respectively suitable for children, teenagers and adults.

[0044] Specifically, the liquid crystal panel 8 adopts a monochrome liquid crystal drawing board. This design only supports color display by pressing with the fingertip pen 10, effectively avoiding trace interference caused by accidental touch, ensuring the accuracy and reliability of the recorded vertical jump trace, and providing guarantee for accurately measuring the vertical jump height. The equipped fingertip pen 10 has three different sizes, corresponding to children, teenagers and adults respectively, taking into account the differences in hand sizes of different groups of people, greatly improving the accuracy and adaptability of the measurement, meeting the usage needs of people of different age groups. The 8.5-inch monochrome liquid crystal drawing board adopted by the liquid crystal panel 8 has a low cost, and the cost of each screen does not exceed 10 yuan. Compared with the display components used in competing products such as electronic voice broadcast vertical jump detectors, the overall cost of the device is greatly reduced, making the product price more competitive and helping to expand the consumer group.

[0045] The liquid crystal panel 8 adopts cholesteric liquid crystal or pressure-sensitive liquid crystal technology. By physically pressing, the arrangement of liquid crystal molecules is changed to form an image. Without backlight, erasure is achieved through a reset circuit or physical vibration. The structure only requires a single liquid crystal layer plus a conductive film, without complex components. This makes it have high physical durability, strong environmental adaptability, long service life, anti-electromagnetic interference and extremely low maintenance cost, and can adapt to different usage environments and usage frequencies, ensuring the long-term stable operation of the device.

[0046] Please refer to Appendix Figure 2 and Appendix Figure 3 , the shape of the fixing frame 7 is an inverted L shape, and it is fixed on the outer wall of the second support rod 6 by screws; the scale 9 is separated from the liquid crystal panel 8.

[0047] Specifically, the fixing frame 7 provides a stable installation foundation for the liquid crystal panel 8 and the scale 9, ensuring their stable positions during the use of the device and not being easily shaken or displaced. The separated setting makes it more convenient to replace or adjust the scale 9. Only by fixing the height of the vertical rod and directly reading the vertical jump height without addition calculation can meet different usage needs, enhancing the practicality and flexibility of the device.

[0048] Please refer to Appendix Figure 9 , a usage method of an adjustable vertical jump height detection device, including the following steps:

[0049] S1. Equipment preparation: Fill the water bag 11 with water through the water inlet 12. After filling, place the device on a flat and open site to avoid obstacles around affecting the test;

[0050] S2. Height adjustment: Adjust the height of the device according to the height of the user. First, insert the second support rod 6 into the interior of the mounting column 51. Rotate the grip 53, and the grip 53 drives the threaded column 52 to rotate. The threaded column 52 is threadedly connected to the mounting column 51, and the threaded column 52 will fix the second support rod 6 inside the mounting column 51. Then, pull up the sliding rod 41. There are scale lines 42 on the outer wall. Observe the scale lines 42 and adjust the sliding rod 41 to an appropriate height. At this time, the metal sheet 31 of the limit component 3 will play a certain limiting role on the sliding rod 41. Then, by tightening the first thread buckle 32 and the second thread buckle 33, fix the position of the sliding rod 41 to ensure that the height of the device will not change during the test process;

[0051] S3. Test preparation and vertical jump test: The user selects a fingertip pen 10 of a suitable size for himself / herself. After wearing the fingertip pen 10, stand at a suitable position in front of the device and get ready for the vertical jump. The user jumps up and touches the liquid crystal panel 8 with the finger wearing the fingertip pen 10;

[0052] S4. Height calculation: Read the scale value on the sliding rod 41 and add the scale value corresponding to the vertex of the mark on the liquid crystal panel 8, which is the vertical jump height of the user.

[0053] Specifically, device placement and preparation: Select a flat, open and obstacle-free site, and place the adjustable vertical jump height detection device stably on it. Use a suitable water injection tool to inject water into the water inlet 12. Height personalized adjustment: According to the height difference of the user, accurately adjust the height of the device. Hold the grip 53 with your hand to fix the second support rod 6 inside the mounting column 51. During the adjustment process, adjust the sliding rod 41 to a height suitable for the user's height. When adjusted to the appropriate height, the metal sheet 31 of the limit component 3 will play a preliminary limiting role on the sliding rod 41 by virtue of its own elasticity. To ensure that the sliding rod 41 will not loosen or shift during the test, use a screwdriver to tighten the first thread buckle 32 and the second thread buckle 33 to further fix the position of the sliding rod 41 and make the device height stable and reliable.

[0054] Preparation work before the test: From the three different sizes of fingertip pens 10 provided, the three fingertip pens 10 are respectively suitable for children, teenagers and adults. Through reasonable selection, it can ensure that the user can obtain the best measurement accuracy when touching the liquid crystal panel 8. After selecting the fingertip pen 10, the user wears it on the index finger or middle finger and adjusts the wearing comfort and stability to ensure that the fingertip pen 10 will not fall off during the vertical jump process.

[0055] Vertical jump operation and data collection: The user performs a vertical jump action and touches the liquid crystal panel 8 with the fingertip pen 10. Since the liquid crystal panel is a special monochromatic liquid crystal drawing board, it only supports color display by pressing with the fingertip pen. Therefore, at the moment of touching, a clear mark will be left on the liquid crystal panel 8.

[0056] Determination of the height of reaching for the high object: Read the scale value on the sliding rod 41, which represents the starting height of the liquid crystal panel 8. Add the scale value on the sliding rod 41 to the scale value corresponding to the vertex of the trace on the liquid crystal panel 8. The sum obtained is the height of reaching for the high object by the user. If the scale value on the sliding rod 41 is 200 cm and the scale value corresponding to the vertex of the trace on the liquid crystal panel 8 is 3.5 cm, then the height of reaching for the high object is 200 + 3.5 = 203.5 cm.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable height detection device for touching the height, comprising a base (1), characterized in that, The upper surface of the base (1) is fixedly connected with a first support rod (2). The outer wall of the first support rod (2) is fixedly connected with a limiting component (3). The inner part of the first support rod (2) is slidably connected with an adjusting component (4). The limiting component (3) is arranged at the junction of the first support rod (2) and the adjusting component (4). The top of the adjusting component (4) is fixedly connected with a fixing component (5). A second support rod (6) is arranged inside the fixing component (5). A fixing frame (7) is arranged on the outer wall of the second support rod (6). A liquid crystal panel (8) is fixedly connected to the inner wall of the fixing frame (7). A scale (9) is fixedly connected to the outer wall of the fixing frame (7). A water bag (11) is fixedly connected to the upper surface of the base (1). The inner wall of the water bag (11) is fixedly connected to the lower outer wall of the first support rod (2). A finger pen (10) is arranged on the top outer wall of the first support rod (2).

2. The adjustable height detection device for high jump according to claim 1, characterized in that, The fixing component (5) includes a mounting post (51). The outer wall of the mounting post (51) is fixedly connected to the top of the adjusting component (4). A threaded post (52) is threadedly connected to the upper inner part of the mounting post (51). A grip (53) is fixedly connected to the top of the threaded post (52).

3. The adjustable height detection device for high jump according to claim 2, wherein, The adjusting component (4) includes a sliding rod (41). The outer wall of the sliding rod (41) is slidably connected to the inner part of the first support rod (2). Scale lines (42) are arranged on the outer wall of the sliding rod (41).

4. An adjustable height detection device for touching the height according to claim 3, characterized in that, The limiting component (3) includes a metal sheet (31). The inner wall of the metal sheet (31) is arranged on the outer wall of the first support rod (2). A first threaded button (32) is threadedly connected to the upper inner part of the metal sheet (31). A second threaded button (33) is threadedly connected to the lower inner part of the metal sheet (31).

5. An adjustable height detection device for touching the height according to claim 1, characterized in that, An inlet (12) is formed inside the water bag (11).

6. An adjustable height detection device for touching the height according to claim 5, characterized in that, The liquid crystal panel (8) is a monochromatic liquid crystal drawing panel, and only supports color display by pressing with the finger pen (10).

7. An adjustable height detection device for high jump, characterized in that, The finger pen (10) includes three different sizes, which are respectively adapted for children, teenagers and adults to use.

8. An adjustable height detection device for touching the height according to claim 1, characterized in that, The fixing frame (7) is in an inverted L shape and is fixed to the outer wall of the second support rod (6) by screws.

9. An adjustable height detection device for high jump, characterized in that, The scale (9) is separately arranged from the liquid crystal panel (8).

10. A method for using an adjustable height detection device for touching the height, characterized in that, Applied to an adjustable height detection device for touch height as described in any one of claims 1-9, it includes the following steps: S1. Equipment preparation: Fill the water bag (11) with water through the inlet (12). After the water injection is completed, place the equipment on a flat and open site to avoid obstacles around affecting the test; S2. Height adjustment: Adjust the height of the device according to the height of the user. First, insert the second support rod (6) into the interior of the mounting column (51). Rotate the grip (53), and the grip (53) drives the threaded column (52) to rotate. The threaded column (52) is threadedly connected to the mounting column (51), and the threaded column (52) will fix the second support rod (6) inside the mounting column (51). Then, pull up the sliding rod (41) which has scale lines (42) on its outer wall. Observe the scale lines (42) and adjust the sliding rod (41) to the appropriate height. At this time, the metal sheet (31) of the limiting component (3) will play a certain limiting role on the sliding rod (41). Then, by tightening the first thread buckle (32) and the second thread buckle (33), fix the position of the sliding rod (41) to ensure that the height of the device will not change during the test; S3. Test preparation and vertical jump test: The user selects a fingertip pen (10) suitable for their own size. After wearing the fingertip pen (10), stand at an appropriate position in front of the device and get ready for the vertical jump test. The user jumps up and touches the liquid crystal panel (8) with the finger wearing the fingertip pen (10); S4. Height calculation: Read the scale value on the sliding rod (41) and add the scale value corresponding to the apex of the mark on the liquid crystal panel (8), which is the vertical jump height of the user.