Sit-up detection device and method

Abstract

The present invention discloses a sit-up detection device and method; the sit-up detection device includes a bottom plate and a camera support provided on the side of the bottom plate; a camera is fixed at the upper end of the camera support, and further includes a control host connected to the camera, and a human body bone detector is provided in the image recognition unit of the control host; the camera captures the image of the user, and through comparison with the human body bone detector, it is detected that the user lies flat once and then gets up until the elbows and knees coincide once, and thus one sit-up action is calculated; the bottom plate is provided with a vertical rod and a foot horizontal pressure rod provided on the vertical rod to press the feet. The present invention recognizes the lower body in the image and matches it with a fixed triangular graphic model, and recognizes the image of the upper body and matches it with a movable triangular graphic model, so as to realize the counting of sit-up actions, and has the characteristics of simplicity and practicality. A foot horizontal pressure rod is also provided to press the feet, which can play an auxiliary role.

Description

Technical Field

[0001] The present invention relates to a sit-up detection device, and more specifically to a sit-up detection device and method. Background Art

[0002] In the prior art, there are many detection devices for sit-ups. For example, the patent document CN214415570U discloses a sit-up automatic counting device, and the patent document CN211986807U discloses a sports equipment mat for sit-up testing. Obviously, the technical solutions provided by these patent documents can only be used for detection and can be regarded as products for examinations, but have no other functions. For some beginners, they cannot complete standard operations at the beginning and need certain assistance to gradually complete standard operations. For example, the patent document CN211885168U discloses an auxiliary device for sit-up teaching. However, the tutoring functions of these tutoring devices are fixed and the tutoring effect is limited. In addition, among the currently disclosed patent documents, there is a lack of a detection function for the suspended state.

[0003] Therefore, the inventor believes that it is necessary to develop a sit-up device and method that can play a detection role and have an auxiliary function. Further provide a sit-up device that can detect the suspended state. Summary of the Invention

[0004] The purpose of the present invention is to provide a sit-up detection device and method for the above problems existing in the prior art.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A sit-up detection device includes a bottom plate and a camera support provided on the side of the bottom plate; a camera is fixed at the upper end of the camera support, and further includes a control host connected to the camera. The image recognition unit of the control host is provided with a human body bone detector; the camera captures the image of the user, and by comparing with the human body bone detector, it detects that the user lies flat once and then gets up until the elbows and knees coincide once, thereby calculating one sit-up movement; the bottom plate is provided with a vertical rod and a foot horizontal pressing rod provided on the vertical rod to press the feet.

[0007] Its further technical solution is: the human skeleton detector includes a lower limb detector and an upper body detector; the lower limb detector and the upper body detector are constructed into models after manual recognition and stored in the image recognition unit of the control host; the lower limb detector includes a fixed triangle graphic model formed by the waist fulcrum, the knee joint fulcrum and the ankle fulcrum; the upper body detector includes a movable triangle graphic model formed by the waist fulcrum, the shoulder joint fulcrum and the elbow joint fulcrum.

[0008] Its further technical solution is: it also includes an infrared detection part, which includes an upper vertical plate and a lower vertical plate arranged on the side of the bottom plate. The upper vertical plate is provided with an upper infrared sensor for detecting the position of the head and upper body moving to the lower limbs, and the lower vertical plate is provided with a lower infrared sensor for detecting the state of the upper body in a lying position.

[0009] A further technical solution is as follows: the vertical rod is further provided with a foot horizontal supporting rod to support the calf.

[0010] A further technical solution is as follows: a foot pressure sensor is provided on the lower side of the foot transverse pressure rod for detecting the magnitude of the force exerted by the foot.

[0011] A further technical solution is as follows: a flat airbag is provided on the upper surface of one end of the bottom plate close to the lower vertical plate, and a back pressure sensor connected to the flat airbag.

[0012] Its further technical solution is: it also includes a controller connected to the upper infrared sensor, the lower infrared sensor, the foot pressure sensor, and the back pressure sensor, and a power supply circuit connected to the controller; the controller is communicatively connected to the control host.

[0013] A further technical solution is as follows: the lower vertical plate is further provided with a middle infrared sensor located above the lower infrared sensor, and the middle infrared sensor is adjustably connected to the lower vertical plate in the up and down directions.

[0014] The sit-up detection method of the present invention adopts the aforementioned sit-up detection device, and the detection method includes a training detection method and / or an examination detection method;

[0015] The training detection method enables one or both of image detection by a camera and infrared detection by an infrared sensor;

[0016] The test detection method adopts an infrared detection mode, and the infrared detection part is enabled during operation.

[0017] Its further technical solution is as follows: When performing training detection, the voice information output when the upper body gets up is rhythmic music, and the rhythm frequency of the music gradually increases. When the breathing detector detects that the breathing of the student or during exercise is inhalation, a prompt sound is output to prompt the student or the exerciser to change the breathing method; when performing exam detection, the buzzer only outputs the counted voice information of the numbers reported.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a camera and an image recognition unit with a human body bone detector. In the image, the lower body is recognized and matched with a fixed triangular graphic model, and the image of the upper body is recognized and matched with a movable triangular graphic model, so as to realize the counting of sit-up movements, which has the characteristics of simplicity and practicality. There is also a foot horizontal pressure bar to press the feet, which can play an auxiliary role. Further, an upper vertical plate, a lower vertical plate, an upper infrared sensor, and a lower infrared sensor are also adopted, which can detect the number of sit-ups and achieve the purpose of detection, and can be used as an exam device. A middle infrared sensor is also adopted, which can be used to detect and count the practice or exam when the upper body of the user is in a semi-suspended state, for the practice or exam of abdominal endurance. The middle infrared sensor also adopts an adjustable connection, which can adjust the detection position of the semi-suspended state to guide the user to maintain the semi-suspended state at different angles. Description of the Drawings

[0019] Figure 1 Schematic diagram of the first specific embodiment of the sit-up detection device of the present invention (only the camera detection method);

[0020] Figure 1A is Figure 1 Schematic diagram of the image in the embodiment (lying flat state);

[0021] Figure 1B is Figure 1 Schematic diagram of the image in the embodiment (getting up state);

[0022] Figure 1C is Figure 1 Circuit connection diagram in the embodiment;

[0023] Figure 2 Schematic diagram of the second specific embodiment of the sit-up detection device of the present invention;

[0024] Figure 3 is Figure 2 Circuit block diagram of the embodiment;

[0025] Figure 4 Schematic diagram of the third specific embodiment of the sit-up detection device of the present invention;

[0026] Figure 5 isFigure 4 Circuit block diagram of the embodiment;

[0027] Figure 6A It is the coordination degree coordinate diagram of the user of the sit-up detection method of the present invention at the beginning;

[0028] Figure 6B It is the coordination degree coordinate diagram of the user of the sit-up detection method of the present invention after coordination practice.

[0029] Attached drawings

[0030] 10 Base plate 80 Camera

[0031] 81 Control host 811 Image recognition unit

[0032] 82 Respiration detector 821 Transparent baffle

[0033] 822 Ventilation groove 823 Metal sheet

[0034] 824 Inhalation electrical contact piece 825 Exhalation electrical contact piece

[0035] 83 Lower limb detector 831 Waist fulcrum

[0036] 832 Knee joint fulcrum 833 Ankle joint fulcrum

[0037] 84 Upper body detector 841 Waist fulcrum

[0038] 842 Shoulder joint fulcrum 843 Elbow joint fulcrum

[0039] 90 Camera support

[0040] P Infrared detection part 10A Base plate

[0041] 11 Vertical rod 12 Foot horizontal pressure rod

[0042] 121 Foot pressure sensor 13 Foot horizontal top rod

[0043] 19 Back pressure sensor 20 Upper vertical plate

[0044] 200 Base 201 Vertical rod

[0045] 202 Detection shell 21 Upper infrared sensor

[0046] 30 Lower vertical plate 300 Base

[0047] 301 Vertical rod 302 Detection shell

[0048] 31 Lower infrared sensor 32 Middle infrared sensor

[0049] 40 Controller 41 Power circuit

[0050] 42 Display screen 49 Control box Detailed implementation manner

[0051] To more fully understand the technical content of the present invention, the technical solution of the present invention will be further introduced and described below in conjunction with specific embodiments, but not limited thereto.

[0052] As Figures 1 to 1C Shown in Embodiment 1, the sit-up detection device of the present invention includes a bottom plate 10 and a camera bracket 90 provided on the side of the bottom plate; a camera 80 is fixed at the upper end of the camera bracket 90, and further includes a control host 81 connected to the camera 80. The image recognition unit 811 of the control host 81 is provided with a human body bone detector; the camera 80 captures the image of the user, and by comparing with the human body bone detector, it detects that the user lies flat once and then gets up until the elbows and knees coincide once, and thus calculates that one sit-up movement is completed; the bottom plate is provided with a vertical rod (not shown in this embodiment) and a foot horizontal pressing rod provided on the vertical rod to press the feet.

[0053] The human body bone detector includes a lower limb detector 83 and an upper body detector 84; the lower limb detector 83 and the upper body detector 84 are constructed into a model after artificial recognition and stored in the image recognition unit of the control host; the lower limb detector 83 includes a fixed triangular graphic model formed by a waist fulcrum 831, a knee joint fulcrum 832, and an ankle fulcrum 833; the upper body detector 84 includes a movable triangular graphic model formed by a waist fulcrum 841, a shoulder joint fulcrum 842, and an elbow joint fulcrum 843. The waist fulcrum 831 and the waist fulcrum 841 therein can be completely coincident or can have an appropriate interval, and the interval corresponding in the image at a distance of 30-80 mm is used as the count.

[0054] It further includes an infrared detection part. The infrared detection part includes an upper vertical plate and a lower vertical plate provided on the side of the bottom plate. The upper vertical plate is provided with an upper infrared sensor for detecting the position where the head and upper body move to the lower limbs, and the lower vertical plate is provided with a lower infrared sensor for detecting the state where the upper body is in a lying flat position. Specifically as follows:

[0055] As Figures 2 - 3 Shown in Embodiment 2, the infrared detection part P of the present invention includes an upper vertical plate 20 and a lower vertical plate 30 provided on the side of the bottom plate 10A. The upper vertical plate 20 is provided with an upper infrared sensor 21 for detecting the position where the head and upper body move to the lower limbs, and the lower vertical plate 30 is provided with a lower infrared sensor 31 for detecting the state where the upper body is in a lying flat position; one end of the bottom plate 10A near the upper vertical plate 20 is provided with a vertical rod 11 and a foot horizontal pressing rod 12 provided on the vertical rod 11 to press the feet.

[0056] More specifically, the vertical rod 11 is also equipped with a foot crossbar 13 to support the calf. The upper and lower vertical panels 20, 30 are connected to the base plate 10A in a separate structure. The upper and lower vertical panels 20, 30 are respectively equipped with bases 200 and 300. Detection shells 202 and 302 are supported upward by vertical rods 201 and 301. Upper and lower infrared sensors 21 and 31 are respectively located within detection shells 202 and 302. Indicator lights and other components are also provided. A buzzer or speaker connected to the controller is also included to output a counted number of times or an alarm signal.

[0057] More specifically, a foot pressure sensor 121 is provided on the lower side of the foot transverse pressure rod 12 for detecting the magnitude of the foot force. Both the upper infrared sensor and the lower infrared sensor are reflective sensors.

[0058] More specifically, a flat airbag (not shown in the figure) and a back pressure sensor connected to the flat airbag are provided on the upper surface of one end of the bottom plate close to the lower vertical plate.

[0059] More specifically, the device further includes a controller 40 connected to the upper infrared sensor 21, the lower infrared sensor 31, the foot pressure sensor 121, and the back pressure sensor 19, and a power supply circuit 41 connected to the controller 40. The controller 40, the power supply circuit 41, and the display screen 42 are all installed in the control box 49. The display screen 42 is a touch screen structure.

[0060] In other embodiments, the bottom plate includes at least three connected base plates, which are folded in a zigzag shape or in a surrounding folding shape when stored for easy storage. When opened for use, a locking structure is used at the connected positions to make it a fixed whole.

[0061] In other embodiments, the upper vertical plate and the bottom plate are fixedly connected and are horizontally adjustable or split.

[0062] In other embodiments, a pair of upper and lower vertical plates are provided; the upper infrared sensor and the lower infrared sensor are both through-beam sensors, and the other side of the bottom plate is provided with an upper reflective plate and a lower reflective plate corresponding to the upper and lower vertical plates respectively.

[0063] like Figures 4 to 5In the third embodiment, foot pressure sensors and back pressure sensors are not adopted. However, the lower vertical plate 30 is further provided with a middle infrared sensor 32 above the lower infrared sensor 31. It can be used to detect and count the practice or examination in which the user's upper body is in a semi-suspended state, for the practice or examination of abdominal endurance. The middle infrared sensor can further adopt an adjustable connection to adjust the detection position of the semi-suspended state and guide the user to maintain a semi-suspended state at different angles.

[0064] In other embodiments, the second and third embodiments described above can also be combined to form a new embodiment.

[0065] The sit-up detection method of the present invention uses the aforementioned sit-up detection device, and the detection method includes a training detection method and / or an examination detection method;

[0066] The training detection method enables one or two of the image detection of the camera and the infrared detection of the infrared sensor;

[0067] The examination detection method adopts an infrared detection method, and the infrared detection part is enabled during operation.

[0068] During training detection, the voice information output when the upper body gets up is rhythm music, and the rhythm frequency of the music gradually increases. When the respiration detector detects that the respiration of the student or during exercise is inhalation, a prompt sound is output to prompt the student or the exerciser to change the respiration method; during examination detection, the buzzer only outputs the counted voice information of the number of sit-ups.

[0069] The respiration detector is as Figure 3 shown. The respiration detector 82 needs to be connected to the control host 81 (or controller). The respiration detector 82 can be structured as follows. It includes a transparent baffle 821 provided in front of the mouth and nose of the user. At least one ventilation slot 822 is provided on the transparent baffle 821. A metal sheet 823 is fixed at one end of the ventilation slot 822, and the other end of the metal sheet 823 is movable and extends to the other end of the ventilation slot 822, and can alternatively be electrically connected to the inhalation electrical contact piece 824 and the exhalation electrical contact piece 825 at the other end of the ventilation slot 822. Among them, the inhalation electrical contact piece 824 and the exhalation electrical contact piece 825 are respectively provided on the inner side (i.e., the side close to the mouth and nose) and the outer side at the other end of the ventilation slot.

[0070] More specifically, before doing sit-ups, the user needs to perform ID identification. After the exercise, the exercise result displayed on the display screen is confirmed and then exited.

[0071] In other embodiments, during the counting process of the training detection method and the exam detection method, when detecting the getting-up motion, if the breathing state from the lying state to the getting-up state is exhalation, it is recorded as the number of sit-ups in the physical and mental balance style. That is, in the training detection or exam detection, the number of sit-ups includes the regular number and the number in the physical and mental balance style. When the number in the physical and mental balance style reaches more than 95% of the regular number, the user is marked as a balanced athlete; the video during their training is used as the modeling data for the image recognition unit. Further, using the video of the balanced athlete as the modeling data, rhythm music with the same frequency as the sit-ups is generated.

[0072] In other embodiments, a back pressure sensor connected to a flat airbag can also be used. As the user's upper body lies flat on the bottom plate, the change value of the back pressure sensor is compared with the inhalation change value detected by the breathing detector, and is output to the user or coach through a display screen or other means to prompt the user to adjust the coordination of breathing and movement, thereby changing the rhythm during exercise, achieving the unity of body and mind, and improving the pleasure and quality of exercise. The display method can be in the form of a chart, such as a coordination chart using an XY coordinate graph, where the X-axis is time and the Y-axis is respectively the pressure value of the back pressure sensor and the cumulative inhalation volume. Specifically, as Figure 6A and Figure 6B shown. Among them, Figure 6A is a chart at the beginning of a user. The change in the breathing volume is first fast and then slow, and the change in the pressure value is relatively stable. After detection, through self-adjustment or adjustment by a coach, it becomes Figure 6B 's chart, where the change in the breathing volume and the change in the pressure value are relatively matched and stable.

[0073] In other embodiments, a detection device with a middle infrared sensor is used to provide practice detection for the state where the upper body is suspended. When the middle infrared sensor detects the upper body, it starts to output prompt language to count numbers for the user. A better way of counting numbers is to count down from a set number, and the counting frequency is generally one number per second. This can save the user the trouble of counting numbers, making it easier to like the practice, easier to engage in, and easier to find the feeling of flow.

[0074] In summary, the present invention uses a camera and an image recognition unit with a human body bone detector. In the image, the lower body is recognized and matched with a fixed triangular graphic model, and the upper body image is recognized and matched with a movable triangular graphic model, so as to achieve the counting of sit-up movements, which has the characteristics of simplicity and practicality. There is also a foot cross bar to press the feet, which can play an auxiliary role. The upper vertical plate, the lower vertical plate, the upper infrared sensor and the lower infrared sensor are further adopted, which can detect the number of sit-ups and achieve the detection purpose, and can be used as an examination device. The middle infrared sensor is also adopted, which can be used to detect and count the practice or examination of the user when the upper body is in a semi-suspended state, for the practice or examination of abdominal endurance. The middle infrared sensor also adopts an adjustable connection, which can adjust the detection position of the semi-suspended state to guide the user to maintain the semi-suspended state at different angles.

[0075] The above only uses embodiments to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. Sit-up detection method, characterized in that An abdominal crunch detection device is adopted. The abdominal crunch detection device includes a bottom plate and a camera support provided on the side of the bottom plate. It is characterized in that a camera is fixed at the upper end of the camera support, and a control host connected to the camera is further included. A human body bone detector is provided in the image recognition unit of the control host. The camera captures the image of the user, and by comparing it with the human body bone detector, it detects that the user lies flat once and then gets up until the elbows and knees coincide once, and thus calculates that an abdominal crunch movement is one time. The bottom plate is provided with a vertical rod and a foot horizontal pressing rod provided on the vertical rod to press the feet. The human body bone detector includes a lower limb detector and an upper body detector. The lower limb detector and the upper body detector are constructed into a model through artificial recognition and stored in the image recognition unit of the control host. The lower limb detector includes a fixed triangle graphic model formed by a waist fulcrum, a knee joint fulcrum, and an ankle joint fulcrum. The upper body detector includes a movable triangle graphic model formed by a waist fulcrum, a shoulder joint fulcrum, and an elbow joint fulcrum. An infrared detection part is further included. The infrared detection part includes an upper vertical plate and a lower vertical plate provided on the side of the bottom plate. The upper vertical plate is provided with an upper infrared sensor for detecting the position where the head and upper body move to the lower limbs, and the lower vertical plate is provided with a lower infrared sensor for detecting the state where the upper body is in a lying flat position. The detection method includes a training detection method and / or an exam detection method. For the training detection method, one or two of the image detection of the camera and the infrared detection of the infrared sensor are enabled. For the exam detection method, an infrared detection method is adopted, and the infrared detection part is enabled during operation. During training detection, the voice information output when the upper body gets up is rhythm music, and the rhythm frequency of the music gradually increases. When the breath detector detects that the breath of the student or during exercise is inhalation, a prompt sound is output to prompt the student or the exerciser to change the breathing method. During exam detection, the buzzer only outputs the counted reporting voice information. The breath detector is connected to the control host or the controller. The breath detector includes a transparent baffle provided in front of the mouth and nose of the user. At least one ventilation groove is provided on the transparent baffle. A metal sheet is fixed at one end of the ventilation groove, and the other end of the metal sheet is movable and extends to the other end of the ventilation groove, and is alternatively connected to an inhalation electrical contact piece and an exhalation electrical contact piece at the other end of the ventilation groove. Among them, the inhalation electrical contact piece and the exhalation electrical contact piece are respectively provided on the inner side and the outer side at the other end of the ventilation groove. The vertical rod is further provided with a foot horizontal top rod to top the lower leg. And when detecting the getting up, when it is detected that the breathing state from the lying flat state to the getting up state is exhalation, it is recorded as the number of abdominal crunches in the physical and mental balance style, that is, during training detection or exam detection, the number of abdominal crunches includes the regular number and the number in the physical and mental balance style. When the number in the physical and mental balance style reaches more than 95% of the regular number, the user is marked as a balanced athlete. The video during his training is used as the modeling data of the image recognition unit. Taking the video of the balanced athlete as the modeling data, rhythm music with the same frequency as the abdominal crunches is generated.

2. The sit-up detection method according to claim 1, wherein A foot pressure sensor is provided on the lower side of the foot horizontal pressure bar for detecting the magnitude of the force exerted by the foot.

3. The sit-up detection method according to claim 2, wherein A flat airbag is provided on the upper surface of one end of the bottom plate near the lower vertical plate, and a back pressure sensor connected to the flat airbag; the change value of the back pressure sensor is compared with the change value of inhalation detected by the respiration detector, and is output to the user or coach through a display screen or other means to prompt the user to adjust the coordination of breathing and movement, thereby changing the rhythm during exercise, achieving the unity of body and mind, improving the pleasure of exercise and the quality of exercise. The display method is a chart type, using a coordination chart of an XY coordinate graph, with the X-axis being time and the Y-axis being the pressure value of the back pressure sensor and the cumulative inhalation volume respectively.

4. The sit-up detection method according to claim 3, wherein It further includes a controller connected to the upper infrared sensor, the lower infrared sensor, the foot pressure sensor, and the back pressure sensor, and a power supply circuit connected to the controller; the controller is communicatively connected to the control host.

5. The sit-up detection method according to claim 1, characterized in that, The lower vertical plate is further provided with a middle infrared sensor above the lower infrared sensor, and the middle infrared sensor is adjustably connected to the lower vertical plate in the up and down direction.

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