A calibrating device for training action standard of aerobics

Abstract

The application relates to the technical field of aerobics training aids, and discloses an aerobics training action standard calibration device, which comprises a support, the top of the support is fixedly provided with a supporting plate, the top of the supporting plate is provided with a threaded groove, the inner wall of the threaded groove is in threaded connection with a threaded rod, and the top of the supporting plate is provided with a first air vent. The laser grating module is controlled by a computer to play light sources, the computer captures N images through a light source acquisition module, and then matrix points of the N images are produced; the matrix points of the X and Y axes are acquired, and coordinates are represented, so that curves in the X and Y axial directions can be made; the curve file of a standard dance posture S is compared with the curve file of a dancer, the standard degree of the dance posture can be judged according to the coincidence degree, and the two laser grating modules are used to realize the acquisition of the grating matrix, so that the accuracy can be up to a point and the high-precision dense degree can be realized.

Description

Technical Field

[0001] This invention relates to the field of aerobics training assistance technology, specifically to an aerobics training movement standard calibration device. Background Technology

[0002] Aerobics is a popular and widely enjoyed sport that combines gymnastics, dance, music, fitness, and entertainment. It incorporates many movements from disco, jazz, and breakdancing, including movements of the upper and lower limbs, torso, head and neck, and feet, particularly hip movements. This adds vitality to aerobics and helps reduce fat accumulation in the hips and abdomen, while also improving coordination and flexibility.

[0003] An existing aerobics posture correction training device and method can be found in Chinese invention patent CN109331441B, which discloses "an aerobics posture correction training device, a training space, the training space having at least a top surface and two side surfaces connected to the top surface, a display device being provided on one of the side surfaces, and radar scanning devices being provided at the midpoints of the four sides of the top surface and at the center of the top surface; a training area being provided at the center of the floor of the training space, where the trainee stands, and the training area is provided with evenly arranged latitude and longitude squares, the radar scanning devices scanning the trainee's human body image and the coordinate transformation of the latitude and longitude squares in the training area, and transmitting the human body image and the coordinate transformation of the latitude and longitude squares to a host computer in real time." The host computer uses an image processing module to digitize high-speed acquired human body images via an analog-to-digital converter. The digitized data is then stored, and after storage, Fourier transform is performed to remove noise. Pulse compression and image compression are then applied, and the data is input to a comparison module for comparison with standard movements. The comparison results are displayed on a display device. By acquiring the echo energy of each technical movement of the human body, and based on the echo energy and the acquired coordinate transformation, the echo energy of each movement can be converted and compared with each corresponding standard movement to obtain overlapping and non-overlapping parts. The overlapping parts are converted from analog to digital and output as analog solid lines, while the non-overlapping parts are directly output as dashed lines. The standardization of the movement is judged by the results of the analog solid line output and dashed line output.

[0004] Analysis revealed that the proposed solutions in the aforementioned comparative documents require a large number of radar deployment points. The density of the radar deployment directly affects the accuracy of the data acquisition, and the increased number of radars also leads to higher costs.

[0005] Therefore, a standard calibration device for aerobics training movements is invented, which has high motion acquisition accuracy, is easy to calibrate and adjust, and has high component stability. Summary of the Invention

[0006] This invention provides a calibration device for aerobics training movements, which has the advantage of detecting the calibration of dancers' aerobics movements and solves the problem that traditional equipment cannot detect whether dancers' postures are standard.

[0007] This invention provides the following technical solution: a calibration device for aerobics training movements, comprising a support, a support plate fixedly mounted on the top of the support, a threaded slot on the top of the support plate, a threaded rod threadedly connected to the inner wall of the threaded slot, a first ventilation opening on the top of the support plate, a housing assembly and a power supply respectively disposed on the top of the support plate, a clamping plate disposed on the top of the power supply, a computer, a heat dissipation assembly, a controller, and an alarm system respectively disposed on the top of the clamping plate, a telescopic assembly fixedly mounted on the top of the clamping plate, a data connector electrically connected to the outer wall of the computer, a second ventilation opening on the top of the clamping plate, a laser grating module threadedly connected to the top of the telescopic assembly, one end of a video cable inserted into the inner wall of the data connector, the other end of the video cable inserted into a display, a mounting bracket fixedly mounted on the bottom of the display, one end of a data acquisition cable inserted into the inner wall of the data connector, the other end of the data acquisition cable inserted into a data acquisition device, and a light source acquisition module disposed on the outer wall of the data acquisition device.

[0008] Preferably, the housing assembly includes a protective housing, the top of which has a mounting groove, the outer wall of which has a ventilation groove and a mounting square groove, the inner wall of which has a retaining plate, and the outer wall of which is fixedly fitted with control buttons and a control panel.

[0009] Preferably, the telescopic assembly is located on the inner wall of the mounting groove, the number of the four clamping plates is four, and the four clamping plates are respectively clamped to the four inner walls of the protective shell, and the control panel is electrically connected to the control buttons via a computer.

[0010] Preferably, the telescopic assembly includes a base, a first telescopic rod is fixedly mounted on the top of the base, a second telescopic rod is slidably sleeved on the inner wall of the first telescopic rod, a third telescopic rod is slidably sleeved on the inner wall of the second telescopic rod, a fourth telescopic rod is slidably sleeved on the inner wall of the third telescopic rod, and an internal thread groove is provided on the top of the fourth telescopic rod.

[0011] Preferably, the top outer edges of the first, second, and third retractable rods are all provided with circular grooves, and the bottom outer edges of the fourth, third, and second retractable rods are all provided with circular grooves. A U-shaped spring is fixedly mounted on the bottom inner wall of each of the four retractable rods. A locking block is fixedly mounted on the outer edges of both ends of the U-shaped spring. A monitoring and control board is fixedly mounted on the inner wall of the U-shaped spring. Elastic monitoring electrodes are fixedly mounted on the inner walls of both sides of the U-shaped spring near the locking block. A wire passes through the top of the U-shaped spring.

[0012] Preferably, the locking block is conical, and the circular grooves on the outer edges of the first, second, third, and fourth retractable rods are all corresponding. The first and second retractable rods are engaged by the locking blocks on the inner walls of the circular grooves, the second and third retractable rods are engaged by the locking blocks on the inner walls of the circular grooves, and the third and fourth retractable rods are engaged by the locking blocks on the inner walls of the circular grooves. The wire is electrically connected to the elastic monitoring electrode through the monitoring control board, and the two elastic monitoring electrodes are in contact with each other, forming a closed circuit on the monitoring control board.

[0013] Preferably, the heat dissipation assembly includes a fixed frame, a fixed shaft is fixedly mounted on the inner wall of the fixed frame, and a fan is fixedly mounted on the outer edge of the fixed shaft.

[0014] Preferably, there are two fans, and the two fans are symmetrically arranged on the inner wall of the fixed frame, and the position of the heat dissipation component corresponds to the position of the ventilation slot.

[0015] Preferably, there are several light source acquisition modules, and the light source acquisition modules are evenly embedded in the front outer wall of the collector. The power supply is electrically connected to the computer, controller, warning system, display and collector respectively through the protective shell. The warning system has built-in warning devices.

[0016] The present invention has the following beneficial effects:

[0017] 1. This aerobics training movement standard calibration device uses a computer-controlled laser grating module to play light source playback. The computer captures the image N through the light source acquisition module, thereby producing a matrix of points for the human image N. By acquiring the matrix points on the X and Y axes, coordinate representation is performed, which can generate curves in the X and Y axis directions. By comparing the curve file of the standard dance posture S with the dancer's curve file, the standardization of the dance posture can be judged based on the degree of overlap. The use of two laser grating modules to acquire the grating matrix can achieve point-to-point accuracy and high precision through density. It eliminates the need for the large number of radars found in traditional equipment, where the density of radar deployment directly affects the accuracy of movement acquisition, and the cost of a large number of radars is also high.

[0018] 2. This aerobics training movement standard calibration device, by pulling up the laser grating module, causes the second lifting rod to slide inside the first lifting rod cavity. The elasticity of the U-shaped spring causes the locking block to engage with the inner cavity of the circular groove, thus fixing the lifting assembly and adjusting the height of the laser grating module to a suitable position, making the device suitable for dancers of different heights. On the other hand, a wire is used to electrically connect the monitoring control board to the elastic monitoring electrode, allowing the monitoring control board to be electrically connected to the control panel. When the locking blocks on both sides of the U-shaped spring are pressed against the inner wall of the second lifting rod, they make contact, creating a closed circuit on the monitoring control board. This allows the monitoring control board to control the alarm via the wire. Furthermore, the elastic monitoring electrode and the monitoring control board detect the engagement status of the third and fourth lifting rods, thus preventing the laser grating module from suddenly descending and causing the dancer's movement calibration to terminate due to a loose engagement between the third and fourth lifting rods during movement calibration.

[0019] 3. This aerobics training movement standard calibration device records the image on the outer wall of the acquisition unit through the built-in image acquisition function of the laser grating module, and stores it through a computer. This allows dancers to reproduce the dance footage through the computer, thereby recording any mistakes made by the dancers during the dance and enabling them to better train.

[0020] 4. The aerobics training movement standard calibration device has a plane composed of the grating coordinate set emitted by the laser grating module 14 and the plane composed of the grating coordinate set acquired by the image acquisition function within the laser grating module 14. The sum of these two planes constitutes the entire grating, which can verify the accuracy of the acquired movements at the surface level. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the acquisition line structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the display structure of the present invention;

[0024] Figure 4 This is a schematic cross-sectional view of the outer casing assembly of the present invention;

[0025] Figure 5 This is a schematic diagram of the data connector structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the first ventilation opening structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the telescoping component of the present invention;

[0028] Figure 8 This is a partial structural diagram of the telescoping component of the present invention;

[0029] Figure 9 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 10 This is a circuit diagram of the monitoring and control board of the present invention;

[0031] Figure 11 This is a curve comparing the coverage area of ​​the standard dance posture on the X-axis and the dance posture of the trainee on the X-axis according to the present invention;

[0032] Figure 12 This is a curve comparing the coverage area of ​​the standard dance posture on the Y-axis and the dance posture of the trainee on the Y-axis according to the present invention.

[0033] In the diagram: 1. Support; 2. Support plate; 3. Threaded slot; 4. Threaded rod; 5. First vent; 6. Housing assembly; 601. Protective housing; 602. Mounting slot; 603. Ventilation slot; 604. Mounting square slot; 605. Clamping plate; 606. Control panel; 607. Control buttons; 7. Power supply; 8. Clamping plate; 9. Computer; 10. Controller; 11. Data connector; 12. Heat dissipation assembly; 1201. Fixing frame; 1202. Fixing shaft; 1203. Fan; 13. Lifting and retracting assembly; 1301. Base ; 1302, First retracting rod; 1303, Second retracting rod; 1304, Third retracting rod; 1305, Fourth retracting rod; 1306, Internal threaded groove; 1307, U-shaped spring; 1308, Locking block; 1309, Circular groove; 1310, Monitoring and control board; 1311, Elastic monitoring electrode; 1312, Wire; 14, Laser grating module; 15, Second ventilation opening; 16, Video cable; 17, Fixing bracket; 18, Display; 19, Acquisition cable; 20, Acquisition device; 21, Light source acquisition module; 22, Warning system. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-12A calibration device for aerobics training movements includes a support 1, a support plate 2 fixedly mounted on the top of the support 1, a threaded slot 3 on the top of the support plate 2, a threaded rod 4 threadedly connected to the inner wall of the threaded slot 3, a first ventilation opening 5 on the top of the support plate 2, a housing assembly 6 and a power supply 7 respectively disposed on the top of the support plate 2, a clamping plate 8 disposed on the top of the power supply 7, a computer 9, a heat dissipation assembly 12, a controller 10, and an alarm system 22 respectively disposed on the top of the clamping plate 8, a telescopic assembly 13 fixedly mounted on the top of the clamping plate 8, a data connector 11 electrically connected to the outer wall of the computer 9, a second ventilation opening 15 on the top of the clamping plate 8, a laser grating module 14 threadedly connected to the top of the telescopic assembly 13, one end of a video cable 16 inserted into the inner wall of the data connector 11, the other end of the video cable 16 inserted into a monitor 18, and a mounting bracket 1 fixedly mounted on the bottom of the monitor 18. 7. One end of the acquisition cable 19 is inserted into the inner wall of the data connector 11, and the other end of the acquisition cable 19 is inserted into the acquisition device 20. The outer wall of the acquisition device 20 is provided with a light source acquisition module 21. In the above structure, the image on the outer wall of the acquisition device 20 is recorded by the image acquisition function built into the laser grating module 14 and stored by the computer 9. The dancer can then read the dancer's dance stored in the computer 9 through the monitor 18 and reproduce the image. The computer 9 is used to control the entire device and make the device operate according to the preset program. The controller 10 is used to control the power supply 7 of the device so that the device can be powered off when not in use. Its warning system 22 consists of a buzzer, a warning light and the computer 9. The computer 9 records and monitors the operation of the device and the dancer's dance posture. When the data of the device operation and the dancer's dance posture are abnormal, the buzzer and the warning light will provide an alert.

[0036] The outer casing assembly 6 includes a protective casing 601. The top of the protective casing 601 has a mounting groove 602. The outer wall of the protective casing 601 has ventilation grooves 603 and mounting square grooves 604. The inner wall of the protective casing 601 is fitted with a retaining plate 605. The outer wall of the protective casing 601 is fixedly equipped with control buttons 607 and control panel 606. In the above structure, by opening the mounting groove 602, the telescopic assembly 13 can be telescopically raised and lowered through the mounting groove 602, thereby allowing the position and height of the laser grating module 14 to be adjusted. By opening the mounting square groove 604, external devices can be connected to the data connector 11 through the mounting square groove 604, thereby enabling the device to realize the device external function.

[0037] The telescopic assembly 13 is located on the inner wall of the mounting slot 602. There are four clamping plates 605, which are respectively clamped to the four inner walls of the protective shell 601. The control panel 606 is electrically connected to the control buttons 607 via the computer 9. In the above structure, the clamping plates 605 are respectively clamped to the four inner walls of the protective shell 601, so that the clamping plate 8 can overlap the top of the clamping plate 605. This prevents the equipment structure on the top of the clamping plate 8 from pressing against the power supply 7, thereby increasing the safety of the power supply 7. At the same time, the control buttons 607 can realize the power on and off of the equipment. The control panel 606 can display the screen detected by the equipment. By setting the control panel 606, the equipment itself can realize the browsing function, thus solving the problem that the equipment can be used normally when there is no external display device.

[0038] The lifting and retracting assembly 13 includes a base 1301, a first lifting and retracting rod 1302 fixedly mounted on the top of the base 1301, a second lifting and retracting rod 1303 slidably sleeved on the inner wall of the first lifting and retracting rod 1302, a third lifting and retracting rod 1304 slidably sleeved on the inner wall of the second lifting and retracting rod 1303, and a fourth lifting and retracting rod 1305 slidably sleeved on the inner wall of the third lifting and retracting rod 1304. The top of the fourth lifting and retracting rod 1305 is provided with an internal threaded groove 1306. With the above structure, the laser grating module 14 can be lifted and retracted through the lifting and retracting assembly 13, thereby adjusting the height of the laser grating module 14. As a result, the light source of the laser grating module 14 can be aligned with the dancer, thereby achieving better light projection.

[0039] Among them, the top outer edges of the first retracting rod 1302, the second retracting rod 1303, and the third retracting rod 1304 are all provided with circular grooves 1309; the bottom outer edges of the fourth retracting rod 1305, the third retracting rod 1304, and the second retracting rod 1303 are all provided with circular grooves 1309; and the bottom inner walls of the fourth retracting rod 1305, the third retracting rod 1304, and the second retracting rod 1303 are all fixedly fitted with U-shaped springs 1307, with both ends of the U-shaped springs 1307 fixedly fitted with... The device is equipped with a locking block 1308. A monitoring and control plate 1310 is fixedly mounted on the inner wall of a U-shaped spring 1307. Elastic monitoring electrodes 1311 are fixedly mounted on both inner walls of the U-shaped spring 1307 near the locking block 1308. A wire 1312 passes through the top of the U-shaped spring 1307. In the above structure, the locking block 1308 can be raised and lowered through the U-shaped spring 1307, thereby allowing the locking block 1308 to slide in the inner wall of the circular groove 1309.

[0040] The locking block 1308 is conical in shape. The circular grooves 1309 on the outer edges of the first retractable rod 1302, second retractable rod 1303, third retractable rod 1304, and fourth retractable rod 1305 are positioned correspondingly. The first retractable rod 1302 and second retractable rod 1303 are engaged by the locking block 1308 on the inner wall of the circular groove 1309. The second retractable rod 1303 and third retractable rod 1304 are engaged by the locking block 1308 on the inner wall of the circular groove 1309. The third retractable rod 1304 and fourth retractable rod 1305 are engaged by the locking block 1308 on the inner wall of the circular groove 1309. The wire 1312 is electrically connected to the elastic monitoring electrode 1311 through the monitoring control board 1310. The two elastic monitoring electrodes 1311 are... The monitoring and control board 1310 forms a closed circuit. Utilizing this structure, after the telescopic assembly 13 is telescopically extended or retracted, the locking blocks 1308 can move to both sides of the U-shaped spring 1307 by the elastic force of the U-shaped spring 1307. This allows the locking blocks 1308 to engage with the inner wall of the circular groove 1309, thus fixing the telescopic assembly 13 and preventing it from naturally retracting. Under the pressure of the inner wall of the second telescopic rod 1303, the locking blocks 1308 on both sides of the U-shaped spring 1307 bring the elastic monitoring electrodes 1311 into contact, creating a closed circuit on the monitoring and control board 1310. This allows the monitoring and control board 1310 to control the alarm via the wire 1312.

[0041] The heat dissipation component 12 includes a fixed frame 1201, a fixed shaft 1202 is fixedly mounted on the inner wall of the fixed frame 1201, and a fan 1203 is fixedly mounted on the outer edge of the fixed shaft 1202. With the above structure, the device inside the outer shell component 6 can dissipate heat through the heat dissipation component 12, thereby preventing the device from experiencing high temperature overload.

[0042] There are two fans 1203, and the two fans 1203 are symmetrically arranged on the inner wall of the fixed frame 1201. The position of the heat dissipation component 12 corresponds to the position of the ventilation slot 603. With the above structure, the heat dissipation efficiency of the heat dissipation component 12 is increased, and the air flow rate in the inner cavity of the outer shell component 6 is increased.

[0043] The system includes several light source acquisition modules 21, which are evenly embedded in the front outer wall of the collector 20. The power supply 7 is electrically connected to the computer 9, the warning system 22, the display 18, and the collector 20 via the controller 10. The warning system 22 has a built-in warning device. In this structure, two sets of devices are placed along the X and Y axes, with the dancer as the intersection point of their extended lines, to achieve the purpose of separately acquiring the dancer's side and frontal movements. The light source acquisition modules 21 are evenly embedded in the front outer wall of the collector 20, and the laser grating module 14 is used to capture the dancer's movements. The image is projected onto the front outer wall of the acquisition unit 20, allowing the human image N to be acquired through the light source acquisition module 21 by matrix point acquisition. The acquired matrix points generate a virtual model of the dancer. Combined with the matrix points of the X and Y axes, coordinate representation is performed, which can create curves in the X and Y axis directions. By comparing the curve file of the standard dance posture S with the curve file of the dancer, the standard of the dance posture can be judged based on the degree of overlap, thus enabling the dancer's posture to be detected. At the same time, during the detection process, when an abnormality occurs in the dancer's image, the warning system 22 triggers an alarm, allowing the dancer to adjust their posture.

[0044] Working principle: When using the equipment, two sets of devices are placed along the X and Y axes, with the dancer as the intersection point of the extended lines. The collector 20 is placed in front of the dancer, and the laser grating module 14 is placed behind the dancer, so that the collector 20, the dancer, and the laser grating module 14 are aligned in a straight line. By pulling up the laser grating module 14, the second lifting rod 1303 slides inside the cavity of the first lifting rod 1302. The elastic force of the U-shaped spring 1307 causes the locking block 1308 to engage with the cavity of the circular groove 1309, thereby fixing the lifting assembly 13. The height of the laser grating module 14 is adjusted to a suitable position, and the calculation is performed... Computer 9 controls laser grating module 14 to play light source. Computer 9 captures image N through light source acquisition module 21, and then produces matrix points of human image N. By acquiring matrix points of X and Y axes, coordinate representation is performed, that is, curves in the X and Y axis directions can be created. By comparing the curve file of standard dance posture S with the curve file of the dancer, the standard of the dance posture can be judged according to the degree of overlap, and the difference between the dancer's posture and the standard posture can be obtained. At the same time, through the image acquisition function built into laser grating module 14, the image on the outer wall of acquisition device 20 is recorded, so that computer 9 can play it back on display 18.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibration device for aerobics training movements, comprising a support (1), characterized in that: A support plate (2) is fixedly mounted on the top of the support (1). A threaded slot (3) is opened on the top of the support plate (2). A threaded rod (4) is threadedly connected to the inner wall of the threaded slot (3). A first ventilation opening (5) is opened on the top of the support plate (2). A housing assembly (6) and a power supply (7) are respectively arranged on the top of the support plate (2). A clamping plate (8) is arranged on the top of the power supply (7). A computer (9), a heat dissipation assembly (12), a controller (10), and an alarm system (22) are respectively arranged on the top of the clamping plate (8). A telescopic assembly (13) is fixedly mounted on the top of the clamping plate (8). The computer (9) has a telescopic assembly (13) on its outer shell. The wall is electrically connected to a data connector (11), the top of the clamp (8) is provided with a second ventilation opening (15), the top of the telescopic assembly (13) is threadedly connected to a laser grating module (14), one end of a video cable (16) is inserted into the inner wall of the data connector (11), the other end of the video cable (16) is inserted into a display (18), the bottom of the display (18) is fixedly equipped with a mounting bracket (17), one end of a collection cable (19) is inserted into the inner wall of the data connector (11), the other end of the collection cable (19) is inserted into a collector (20), and the outer wall of the collector (20) is provided with a light source collection module (21).

2. The aerobics training movement standard calibration device according to claim 1, characterized in that: The outer casing assembly (6) includes a protective casing (601), the top of which is provided with a mounting groove (602), the outer wall of which is provided with a ventilation groove (603) and a mounting square groove (604), the inner wall of which is snapped with a retaining plate (605), and the outer wall of which is fixedly fitted with control buttons (607) and a control panel (606).

3. The aerobics training movement standard calibration device according to claim 2, characterized in that: The telescopic assembly (13) is located on the inner wall of the mounting groove (602). There are four clamping plates (605), and the four clamping plates (605) are respectively clamped to the four inner walls of the protective shell (601). The control panel (606) is electrically connected to the control buttons (607) through the computer (9).

4. The aerobics training movement standard calibration device according to claim 1, characterized in that: The telescopic assembly (13) includes a base (1301), a first telescopic rod (1302) is fixedly mounted on the top of the base (1301), a second telescopic rod (1303) is slidably sleeved on the inner wall of the first telescopic rod (1302), a third telescopic rod (1304) is slidably sleeved on the inner wall of the second telescopic rod (1303), a fourth telescopic rod (1305) is slidably sleeved on the inner wall of the third telescopic rod (1304), and an internal threaded groove (1306) is provided on the top of the fourth telescopic rod (1305).

5. The aerobics training movement standard calibration device according to claim 4, characterized in that: The top outer edges of the first retractable rod (1302), the second retractable rod (1303), and the third retractable rod (1304) are all provided with circular grooves (1309). The bottom outer edges of the fourth retractable rod (1305), the third retractable rod (1304), and the second retractable rod (1303) are all provided with circular grooves (1309). The bottom inner walls of the fourth retractable rod (1305), the third retractable rod (1304), and the second retractable rod (1303) are all provided with circular grooves (1309). A U-shaped spring (1307) is fixedly mounted, and a locking block (1308) is fixedly mounted on the outer edges of both ends of the U-shaped spring (1307). A monitoring and control board (1310) is fixedly mounted on the inner wall of the U-shaped spring (1307). An elastic monitoring electrode (1311) is fixedly mounted on both inner walls of the U-shaped spring (1307) near the locking block (1308). A wire (1312) passes through the top of the U-shaped spring (1307).

6. A calibration device for aerobics training movements according to claim 4 or 5, characterized in that: The locking block (1308) is conical. The circular grooves (1309) on the outer edges of the first retractable rod (1302), second retractable rod (1303), third retractable rod (1304), and fourth retractable rod (1305) are all corresponding. The first retractable rod (1302) and the second retractable rod (1303) are engaged by the locking block (1308) on the inner wall of the circular groove (1309). The second retractable rod (1303) and the third retractable rod (1305) are also engaged by the locking block (1308) on the inner wall of the circular groove (1309). 304) The third lifting rod (1304) and the fourth lifting rod (1305) are connected by the locking block (1308) on the inner wall of the circular groove (1309). The wire (1312) is electrically connected to the elastic monitoring electrode (1311) through the monitoring control board (1310). The two elastic monitoring electrodes (1311) are in contact with each other, and the monitoring control board (1310) forms a closed circuit.

7. The aerobics training movement standard calibration device according to claim 1, characterized in that: The heat dissipation assembly (12) includes a fixed frame (1201), a fixed shaft (1202) is fixedly mounted on the inner wall of the fixed frame (1201), and a fan (1203) is fixedly mounted on the outer edge of the fixed shaft (1202).

8. The aerobics training movement standard calibration device according to claim 7, characterized in that: The number of fans (1203) is two, and the two fans (1203) are symmetrically arranged on the inner wall of the fixed frame (1201). The position of the heat dissipation component (12) corresponds to the position of the ventilation slot (603).

9. The aerobics training movement standard calibration device according to claim 1, characterized in that: The number of light source acquisition modules (21) is several, and the light source acquisition modules (21) are evenly embedded in the front outer wall of the collector (20). The power supply (7) is electrically connected to the computer (9), controller (10), warning system (22), display (18) and collector (20) respectively through the protective shell (601). The warning system (22) has built-in warning devices.

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