CN219221701U

CN219221701U - Motion detection device based on human gesture recognition technology

Info

Publication number: CN219221701U
Application number: CN202222506375.8U
Authority: CN
Inventors: 管振宇; 朱婉若; 应嘉鑫; 黄嘉伟; 管延阳
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-06-20
Anticipated expiration: 2032-09-19

Abstract

The utility model belongs to the technical field of human body movement detection and discloses a movement detection device based on a human body gesture recognition technology, which comprises a base, wherein four groups of support legs are fixedly connected to the lower end surface of the base at equal intervals, a support shaft is connected to the upper end surface of the base in a centered and rotating mode, a mounting frame is fixedly connected to the upper end surface of the support shaft, a display screen is mounted in the mounting frame through a clamping mechanism, a connecting hole is formed in the inner bottom surface of the mounting frame, and a connecting port corresponding to the connecting hole is fixedly connected to the lower end surface of the display screen in the middle. When the device is used, the motion state of a human body is identified through the gesture sensor, information is transmitted to the controller, so that the servo motor is driven to work, the supporting shaft is driven to rotate, the camera is always aligned to the human body to track and shoot, meanwhile, three groups of cooling fins synchronously rotate to cool and dissipate heat of the servo motor in working, the failure rate of the servo motor is reduced, and the service life of the device is prolonged.

Description

Motion detection device based on human gesture recognition technology

Technical Field

The utility model relates to the technical field of human body motion detection, in particular to a motion detection device based on a human body gesture recognition technology.

Background

With the development of computer vision and the wide application in living practice, behavior detection and motion recognition programs based on various algorithms are increasingly applied in practice and are being widely studied in the related fields. In the aspect of behavior monitoring, not only is the monitoring of the behavior of the bee colony carried out through information such as graphics, temperature and humidity, sound and the like, but also more applications are focused on the monitoring of the behavior of human beings. Human body gesture recognition is used as an important reference basis for behavior monitoring, and is widely applied to the fields of video capturing, computer graphics and the like.

With the great development of sports education in China, more and more people are added to sports industry, but sports coaches have limited personal energy and cannot watch all students, so how to train sports children becomes a problem. Many manufacturers make relevant motion detection devices to help students to perform self-detection, but the traditional motion detection devices have great influence on the motion personnel, and the traditional motion detection devices need to be carried on the body or worn on the body, so that burden and influence are caused to the motion personnel, and accordingly, errors are generated in corresponding detection results, and the final detection results are influenced.

To this end, we provide a motion detection device based on human gesture recognition technology to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a motion detection device based on a human body gesture recognition technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a motion detection device based on human gesture recognition technique, includes the base, the lower terminal surface annular equidistance fixedly connected with four sets of support legs of base, the up end of base rotates in the middle and is connected with the back shaft, the up end fixedly connected with mounting bracket of back shaft, install the display screen through fixture in the mounting bracket, the connecting hole has been seted up to the interior bottom surface of mounting bracket, the lower terminal surface of display screen fixedly connected with in the middle with the connecting port corresponding to the connecting hole;

the lifting plate is fixedly mounted on the upper end face of the lifting plate, the attitude sensor is fixedly mounted on the lower end face of the lifting plate, the lower end face of the lifting plate is in threaded connection with a fastening bolt for fixing the camera, and the lifting plate is fixed on the supporting shaft through the positioning mechanism;

the upper end surface of the base is fixedly connected with a mounting plate through four groups of vertically arranged supporting rods, the upper end surface of the mounting plate is fixedly provided with a controller, the controller is electrically connected with a posture sensor, the lower end surface of the mounting plate is fixedly provided with a servo motor in the middle, the output end of the servo motor is fixedly connected with an output shaft, the output shaft is connected with a supporting shaft through a first meshing mechanism, three rotating shafts are connected between the mounting plate and the base in a common rotating mode, the three rotating shafts are connected with the output shaft through second meshing mechanisms, and radiating fins are fixedly sleeved on the three rotating shafts.

Preferably, the clamping mechanism comprises fastening knobs and a retaining plate, the number of the fastening knobs is four, the fastening knobs are respectively connected with the front side face, the rear side face, the left side face and the right side face of the mounting frame in a threaded penetrating manner, and the retaining plate is fixedly connected with one end, close to the display screen, of the fastening knobs.

Preferably, the positioning mechanism comprises a positioning pin which is connected to the rear side surface of the lifting plate in a sliding and penetrating manner, a reset spring is sleeved on the positioning pin, one end of the reset spring is fixed to the rear side surface of the connecting hole, and the other end of the reset spring is fixed to a pin handle of the positioning pin.

Preferably, the annular outer side surface of the support shaft is vertically provided with a plurality of positioning holes which are matched with one end of the positioning pin, which is close to the support shaft, at equal intervals.

Preferably, the first meshing mechanism comprises a first gear and a second gear, the first gear is fixedly sleeved on the annular outer side surface of the support shaft, the second gear is fixedly sleeved on the annular outer side surface of the output shaft, and the first gear and the second gear are meshed with each other.

Preferably, the second meshing mechanism comprises three third gears, the third gears are fixedly sleeved on annular outer side surfaces of the three rotating shafts respectively, and the three third gears are respectively connected with the second gears in a meshing mode.

Preferably, the left side face, the right side face and the rear side face of the mounting plate are fixedly connected with the convex blocks, and the top end of the rotating shaft is rotationally connected to the lower end faces of the convex blocks.

Preferably, the radiating fin is cross structure, the up end fixedly connected with protection casing of base, a plurality of thermovent has been seted up to the annular lateral surface annular equidistance of protection casing.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, through the cooperation of the support shaft, the camera, the attitude sensor, the first engagement mechanism, the output shaft, the controller, the second engagement mechanism, the rotating shaft and the cooling fins, when the attitude sensor recognizes the motion state of a human body, information is transmitted to the controller in real time, so that the servo motor is driven to work, and the support shaft is driven to rotate, so that the camera always aims at the human body to track and shoot, and meanwhile, the three groups of cooling fins synchronously rotate to cool and dissipate heat of the servo motor in working, the failure rate of the servo motor is reduced, and the service life of the device is prolonged.

2. According to the utility model, through the cooperation of the positioning mechanism, the clamping mechanism, the mounting frame and the display screen, the display screens with different widths and thicknesses can be rapidly and stably assembled and disassembled, so that the display screens are convenient to overhaul in case of faults, and meanwhile, the positioning pin is driven to be clamped into the corresponding positioning hole on the supporting shaft by utilizing the reset action of the reset spring, so that the height adjustment and stable fixation of the camera are realized, and the application range of the device is further enlarged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the first engagement mechanism, the second engagement mechanism and the heat sink according to the present utility model;

FIG. 4 is a schematic view of the structure of the mounting frame, the connecting hole and the clamping mechanism according to the present utility model;

fig. 5 is an enlarged schematic view of the structure at a in fig. 1.

In the figure: 1. a base; 2. a bracket leg; 3. a support shaft; 4. a mounting frame; 5. a display screen; 6. fastening a knob; 7. a retaining plate; 8. a connection hole; 9. a lifting plate; 10. a camera; 11. a fastening bolt; 12. an attitude sensor; 13. a positioning pin; 14. a return spring; 15. positioning holes; 16. a protective cover; 17. a first gear; 18. a second gear; 19. an output shaft; 20. a servo motor; 21. a support rod; 22. a mounting plate; 23. a controller; 24. a third gear; 25. a rotating shaft; 26. a heat sink.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, a motion detection device based on human body gesture recognition technology comprises a base 1, four groups of support legs 2 are fixedly connected to the lower end surface of the base 1 at equal intervals in an annular mode, a support shaft 3 is connected to the upper end surface of the base 1 in a centered and rotating mode, a mounting frame 4 is fixedly connected to the upper end surface of the support shaft 3, a display screen 5 is mounted in the mounting frame 4 through a clamping mechanism, a connecting hole 8 is formed in the inner bottom surface of the mounting frame 4, and a connecting port corresponding to the connecting hole 8 is fixedly connected to the lower end surface of the display screen 5 in the middle; by arranging the clamping mechanism, the display screen 5 can be quickly installed and disassembled, when faults occur, the display screen 5 is overhauled, and meanwhile, the device is applicable to the installation of the display screens 5 with different thicknesses and widths, and the application range is wider;

the support shaft 3 is in sliding sleeve connection with a lifting plate 9, a camera 10 is fixedly arranged on the upper end surface of the lifting plate 9, a gesture sensor 12 is fixedly arranged on the lower end surface of the lifting plate 9, a fastening bolt 11 for fixing the camera 10 is in threaded connection with the lower end surface of the lifting plate 9, and the lifting plate 9 is fixed on the support shaft 3 through a positioning mechanism; the camera 10 is fixed through the fastening bolt 11 at the bottom of the lifting plate 9, and the height of the camera 10 can be manually adjusted according to actual use requirements through the arrangement of the positioning mechanism, so that the human body movement gesture can be more completely shot, and later calibration with standard actions is facilitated;

the upper end face of the base 1 is fixedly connected with a mounting plate 22 through four groups of vertically arranged supporting rods 21, the upper end face of the mounting plate 22 is fixedly provided with a controller 23, the controller 23 is electrically connected with the attitude sensor 12, the lower end face of the mounting plate 22 is fixedly provided with a servo motor 20 in the middle, the output end of the servo motor 20 is fixedly connected with an output shaft 19, the output shaft 19 is connected with a supporting shaft 3 through a first meshing mechanism, three rotating shafts 25 are connected between the mounting plate 22 and the base 1 in a common rotation mode, the three rotating shafts 25 are connected with the output shaft 19 through a second meshing mechanism, and cooling fins 26 are fixedly sleeved on the three rotating shafts 25;

when a human body moves, the motion state and the motion track are identified through the gesture sensor 12, information is transmitted to the controller 23 in real time, the controller 23 receives signals and then drives the servo motor 20 to work, the servo motor 20 works to drive the output shaft 19 to rotate, so that the first meshing mechanism drives the support shaft 3 to rotate, and further drives the camera 10 and the gesture sensor 12 to rotate, the camera 10 and the gesture sensor 12 are always aligned with the moving human body, accurate tracking shooting is guaranteed, and later-stage motion calibration is facilitated; meanwhile, the output shaft 19 rotates to drive the three rotating shafts 25 to synchronously rotate through the cooperation of the second meshing mechanism, so that the cooling fins 26 are driven to rotate, the working servo motor 20 is cooled and radiated, and the service life of the servo motor 20 is prolonged.

Referring to fig. 1 and 4, the clamping mechanism includes four fastening knobs 6 and a retaining plate 7, the fastening knobs 6 are threaded through and connected to the front side, the rear side, the left side and the right side of the mounting frame 4 respectively, and the retaining plate 7 is fixedly connected to one end of the fastening knobs 6 close to the display screen 5;

through setting up fixture, can carry out the centre gripping to display screen 5 in the past, back, left and right four angles fixedly, improved the stability of display screen 5, prevent that display screen 5 from taking place to rock or the phenomenon of skew at pivoted in-process, make things convenient for the installation and the dismantlement of display screen 5 simultaneously, overhaul when making things convenient for the trouble.

Referring to fig. 1, 2 and 5, the positioning mechanism comprises a positioning pin 13 slidably penetrating through the rear side surface of the lifting plate 9, a return spring 14 is sleeved on the positioning pin 13, one end of the return spring 14 is fixed with the rear side surface of the connecting hole 8, the other end of the return spring 14 is fixed with a pin handle of the positioning pin 13, and a plurality of positioning holes 15 matched with one end of the positioning pin 13 close to the supporting shaft 3 are vertically and equidistantly formed in the annular outer side surface of the supporting shaft 3;

through setting up positioning mechanism, accessible reset spring 14's reset and elasticity effect drive locating pin 13 resilience and card into corresponding locating hole 15 on the back shaft 3 to fix lifter plate 9 in the back shaft 3 suitable position, conveniently monitor the human motion on the platform of different altitudes, increased the application scope of device.

Referring to fig. 2-3, the first engagement mechanism includes a first gear 17 and a second gear 18, the first gear 17 is fixedly sleeved on the annular outer side surface of the support shaft 3, the second gear 18 is fixedly sleeved on the annular outer side surface of the output shaft 19, and the first gear 17 and the second gear 18 are engaged with each other; the second meshing mechanism comprises three third gears 24, the number of the third gears 24 is three, the third gears 24 are respectively fixedly sleeved on the annular outer side surfaces of three rotating shafts 25, and the three third gears 24 are respectively in meshing connection with the second gear 18; the left side surface, the right side surface and the rear side surface of the mounting plate 22 are fixedly connected with lugs, and the top end of the rotating shaft 25 is rotationally connected with the lower end surface of the lug;

through setting up first meshing mechanism for output shaft 19 and back shaft 3 linkage, through setting up second meshing mechanism, make output shaft 19 and three pivot 25 linkage, thereby make back shaft 3 pivoted, drive the synchronous rotation of three fin 26 that are located servo motor 20 left side, right side and rear side, thereby cool off the heat dissipation to servo motor 20 in the work, reduce servo motor 20's fault rate, help improving the life of device.

Referring to fig. 1-3, the heat sink 26 has a cross structure, the upper end surface of the base 1 is fixedly connected with a protecting cover 16, and a plurality of heat dissipation openings are annularly and equidistantly formed on the annular outer side surface of the protecting cover 16;

the radiating fins 26 are of a cross structure, wind power can be generated during rotation, so that the servo motor 20 is blown to dissipate heat, the protective cover 16 is arranged to achieve a good protection effect, the radiating fins 26 are prevented from damaging operators, the radiating ports are formed in the protective cover 16 to be matched with the radiating fins 26 for radiating heat, air flow inside and outside the protective cover 16 is facilitated, and radiating efficiency is improved.

Working principle: before the device is used, the display screen 5 is required to be installed, the display screen 5 is vertically and centrally placed in the mounting frame 4, then the tightening knob 6 is screwed, the retaining plate 7 is driven to move towards the direction of the display screen 5, and therefore the display screen 5 is clamped and fixed, and the tightening knob 6 is unscrewed during disassembly;

then according to the actual use environment, the height of the camera 10 is adjusted, the positioning pin 13 is pulled outwards firstly, so that one end of the positioning pin 13, which is close to the support shaft 3, is separated from the positioning hole 15, then the lifting plate 9 is pushed to slide to a proper height on the support shaft 3, the positioning pin 13 is loosened, and under the reset action of the reset spring 14, the positioning pin 13 is driven to rebound and be clamped into the corresponding positioning hole 15, so that the fixing of the camera 10 is completed;

when the device works, the gesture sensor 12 recognizes and detects the human body state, then the information is transmitted to the controller 23 in real time, and then the servo motor 20 is driven to work, the servo motor 20 works to drive the output shaft 19 to rotate, the output shaft 19 rotates to drive the second gear 18 to rotate, the second gear 18 rotates to drive the first gear 17 to rotate, so that the support shaft 3 is driven to rotate, the camera 10 always aims at the human body, tracking shooting is carried out, and later action calibration is facilitated;

meanwhile, the second gear 18 rotates to drive the three third gears 24 to rotate, so that the three rotating shafts 25 are driven to synchronously rotate, the cooling fins 26 are driven to rotate and generate wind power, the working servo motor 20 is cooled and cooled, and the failure rate of the servo motor 20 is reduced.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a motion detection device based on human gesture recognition technique, includes base (1), its characterized in that: the novel display device comprises a base (1), four groups of support legs (2) are fixedly connected to the lower end face of the base (1) at equal intervals, a supporting shaft (3) is connected to the upper end face of the base (1) in a centered and rotating mode, a mounting frame (4) is fixedly connected to the upper end face of the supporting shaft (3), a display screen (5) is mounted in the mounting frame (4) through a clamping mechanism, a connecting hole (8) is formed in the inner bottom face of the mounting frame (4), and a connecting port corresponding to the connecting hole (8) is fixedly connected to the lower end face of the display screen (5) in the centered and rotating mode;

the lifting device is characterized in that a lifting plate (9) is sleeved on the supporting shaft (3) in a sliding manner, a camera (10) is fixedly arranged on the upper end face of the lifting plate (9), an attitude sensor (12) is fixedly arranged on the lower end face of the lifting plate (9), a fastening bolt (11) for fixing the camera (10) is connected to the lower end face of the lifting plate (9) in a threaded manner, and the lifting plate (9) is fixed on the supporting shaft (3) through a positioning mechanism;

the utility model discloses a motor vehicle seat, including base (1), mounting panel (22) are fixed connection through bracing piece (21) of four vertical settings to the up end of base (1), up end fixed mounting of mounting panel (22) has controller (23), controller (23) and attitude sensor (12) electric connection, servo motor (20) are fixed mounting in the middle of the lower terminal surface of mounting panel (22), output fixedly connected with output shaft (19) of servo motor (20), output shaft (19) are connected through first meshing mechanism with back shaft (3), joint rotation is connected with three pivot (25) between mounting panel (22) and base (1), and is three pivot (25) are all connected with output shaft (19) through second meshing mechanism, and all fix on pivot (25) and cup joint fin (26).

2. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the clamping mechanism comprises a fastening knob (6) and a retaining plate (7), wherein the number of the fastening knobs (6) is four, the fastening knobs are respectively connected with the front side face, the rear side face, the left side face and the right side face of the mounting frame (4) in a threaded penetrating mode, and the retaining plate (7) is fixedly connected with one end, close to the display screen (5), of the fastening knob (6).

3. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the positioning mechanism comprises a positioning pin (13) which is connected to the rear side surface of the lifting plate (9) in a sliding penetrating mode, a reset spring (14) is sleeved on the positioning pin (13), one end of the reset spring (14) is fixed to the rear side surface of the connecting hole (8), and the other end of the reset spring (14) is fixed to a pin handle of the positioning pin (13).

4. A motion detection apparatus based on human gesture recognition technology according to claim 3, wherein: the annular outer side surface of the support shaft (3) is vertically provided with a plurality of positioning holes (15) which are matched with one end of the positioning pin (13) close to the support shaft (3) at equal intervals.

5. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the first meshing mechanism comprises a first gear (17) and a second gear (18), the first gear (17) is fixedly sleeved on the annular outer side face of the supporting shaft (3), the second gear (18) is fixedly sleeved on the annular outer side face of the output shaft (19), and the first gear (17) and the second gear (18) are meshed with each other.

6. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the second meshing mechanism comprises three third gears (24), the number of the third gears (24) is three, the third gears are respectively and fixedly sleeved on annular outer side surfaces of three rotating shafts (25), and the three third gears (24) are respectively in meshing connection with the second gears (18).

7. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the left side face, the right side face and the rear side face of the mounting plate (22) are fixedly connected with protruding blocks, and the top end of the rotating shaft (25) is rotationally connected to the lower end face of the protruding blocks.

8. A motion detection apparatus based on human gesture recognition technology according to claim 1, characterized in that: the radiating fins (26) are of a cross structure, the upper end face of the base (1) is fixedly connected with a protective cover (16), and a plurality of radiating holes are formed in the annular outer side face of the protective cover (16) at annular equal intervals.