A human body parameter measuring device

Abstract

The present invention provides a human body parameter measurement device, which includes: a base; an interactive panel, the interactive panel includes a fixed frame and a first depth camera, a second depth camera, a touch screen and a host arranged on the fixed frame, the fixed frame is detachably connected to the base, the touch screen is fixed to the surface of the fixed frame, the first depth camera and the second depth camera are tilted and arranged at different heights of the fixed frame, the host is electrically connected to the first depth camera, the second depth camera and the touch screen; a turntable, the turntable includes a measuring platform for a human body to stand on and a base connected to the measuring platform, the measuring platform can rotate relative to the base, and the measuring platform includes an electrode sheet located on the surface and a human body composition measurement component located inside. The present invention has the advantages of low site requirements, low detection cost, comprehensive detection, high detection data accuracy, good stability, etc.

Description

Technical Field

[0001] The present invention relates to the field of human body detection, and in particular to a human body parameter measuring device. Background Art

[0002] With the rapid development of social economy and technology, people pay more and more attention to their appearance and dressing. Everyone has their own habits and preferences for these external factors. However, habits and preferences are subjective information, and users may not know what is really suitable for them. Therefore, many data services have been developed to recommend body shape and posture correction programs, fitness programs, dressing recommendations, clothing customization, size recommendations, clothing customization, etc.

[0003] The premise of the above data services is to obtain accurate parameters of the user, including the dimensions of various parts of the human body, weight, body fat, etc. At present, the commonly used human body scanning and human body composition measurement systems are generally non-contact automatic measurement systems that use BIA electrical impedance measurement, optical measurement technology, point cloud processing technology, etc. to perform three-dimensional human body surface contour processing and body composition calculation. For human body scanning, generally speaking, there are several technologies available to achieve this:

[0004] (1) Four-column human body scanning system. Four columns are placed on the vertices of the polygon around the human body measurement space. Two to four depth cameras are installed on each column. The intrinsic and extrinsic parameters of the camera are calibrated. Then, the depth data of multiple depth cameras are collected alternately, and the data is fused to generate a three-dimensional human body model.

[0005] (2) Based on a sliding single depth camera. Usually, a single depth camera is fixed on a slide rail, and the motor drives the slide block to move the camera up and down along the slide rail to scan human body information.

[0006] (3) Two depth cameras are used to alternately collect human body data. The first depth camera and the second depth camera are fixed vertically on the device, and a turntable is connected to the front of the device. During the collection, the person being measured rotates 360° following the turntable.

[0007] For (1), 2 to 4 depth cameras need to be fixed on each column of the four-column device, and the whole set of equipment requires a total of 8 to 16 depth cameras. The hardware cost is high, and the equipment size and floor space are large, which limits the scope of use and is not conducive to installation, movement and transportation. Due to the large size, the distance between the depth camera and the host is increased, so a longer data cable is required to connect the depth camera and the host, which greatly reduces the connection stability of the device and the data transmission stability. Moreover, moving any column requires recalibration of the entire device, which increases the complexity of the mobile device. There will also be blind spots for shooting, such as missing parts of the armpits and crotch, which affects the reconstruction and measurement accuracy.

[0008] For (2), the sliding single depth camera device, when the depth camera moves up and down along the slide rail to scan human body information, noise will inevitably occur, which will affect the user's sensory experience; due to the different start-up time and movement speed of the turntable motor and the slide rail motor, the depth camera's shooting position will be slightly deviated, resulting in poor stability of model synthesis; and the information collected by the single camera lacks contrast and error correction, so the accuracy of the scanned model is not high. The person being measured needs to rotate one circle, so the scanning time is long.

[0009] Regarding (3), the vertical dual-depth camera solution, compared with technologies 1 and 2, it reduces the cost, reduces the equipment size and installation complexity, and increases the scanning stability. However, since the turntable is still far away from the module, it does not actually reduce the area used by the equipment. Summary of the invention

[0010] In view of this, the present invention discloses a human body parameter measurement device, aiming to improve the above problems.

[0011] The present invention adopts the following scheme:

[0012] A human body parameter measuring device, comprising:

[0013] Base;

[0014] An interactive panel, the interactive panel comprising a fixed frame and a first depth camera, a second depth camera, a touch screen and a host arranged on the fixed frame, the fixed frame being detachably connected to the base, the touch screen being fixed to the surface of the fixed frame, the first depth camera and the second depth camera being tilted at different heights of the fixed frame, and the host being electrically connected to the first depth camera, the second depth camera and the touch screen;

[0015] A turntable, the turntable comprising a measuring platform for a human body to stand on and a base connected to the measuring platform, the measuring platform can rotate relative to the base, the measuring platform comprises an electrode sheet located on the surface and a human body composition measuring component located inside, the electrode sheet is electrically connected to the human body composition measuring component, and the human body composition measuring component is electrically connected to the host; wherein:

[0016] The host includes a memory and a processor, and the processor is configured to implement the following steps by executing a computer program stored in the memory:

[0017] Obtain a depth image of the person being measured standing on the turntable through the first depth camera and the second depth camera, reconstruct a real human body three-dimensional model of the person being measured through the depth image, and then obtain the dimensions of key parts of the person being measured based on the real human body three-dimensional model;

[0018] Acquiring body composition data of the measured person through the electrode sheet and the body composition measurement component;

[0019] The key part dimensions and the body composition data are displayed on the touch screen.

[0020] Preferably, the base is bakelite.

[0021] Preferably, a space for accommodating the turntable is formed at the bottom end of the fixed frame.

[0022] Preferably, the distance between the first depth camera and the horizontal ground is 1700mm, and its lens is tilted downward; the distance between the second depth camera and the horizontal ground is 500mm, and its lens is tilted upward; the inclination angle of the first depth camera and the second depth camera is for:

[0023]

[0024] d2=H2-H1

[0025] Among them, d1 is the distance between the measured person and the interactive panel;

[0026] h1 is the distance between the first depth camera and the horizontal ground;

[0027] h2 is the distance between the second depth camera and the horizontal ground;

[0028] H1 is the distance from the lowest point where the first depth camera's viewing cone intersects with the person being measured to the horizontal plane;

[0029] H2 is the distance from the lowest point where the second depth camera's viewing cone intersects the measured person to the horizontal plane.

[0030] Preferably, a glass mirror is formed on the surface of the fixed frame, the glass mirror is provided with a clearance groove, the touch screen is installed in the clearance groove, and the glass mirror and the touch screen are arranged on the fixed frame by a full-lamination process.

[0031] Preferably, the first depth camera and the second depth camera are arranged on the glass mirror surface by using a masking process, and the infrared transmittance of the mirror surface at the lens is above 92%.

[0032] Preferably, the turntable is electrically connected to the host via a double-headed USB-C3.1 data cable, and the USB-C3.1 interface standard outputs a rated power of 19V / 2A.

[0033] Preferably, a wall-mounted component is provided on the back side of the fixed frame.

[0034] Preferably, a depth image of the person being measured standing on the turntable is obtained by the first depth camera and the second depth camera, and the size of the key parts of the person being measured is obtained according to the depth image, specifically:

[0035] Controlling the first depth camera and the second depth camera to detect the standing posture of the person being measured, and guiding the standing posture of the person being measured to reach a preset measurement specification;

[0036] Controlling the turntable to rotate, and simultaneously controlling the first depth camera and the second depth camera to alternately acquire depth images corresponding to various parts of the person being measured located on the turntable;

[0037] Processing the acquired depth image to form a three-dimensional human body model corresponding to the person being measured;

[0038] Extract point cloud data from the 3D human body model and calculate the dimensions of key parts of the person being measured.

[0039] Preferably, the body composition measurement component comprises a body fat scale.

[0040] In summary, the human body parameter detection device provided by this embodiment, by tilting the two depth cameras, enables the interactive panel and the turntable to obtain the complete body shape of the person being measured without requiring too much distance, thereby reducing the demand for the site. In addition, this embodiment also has the advantages of low detection cost, comprehensive detection, high detection data accuracy, and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a structural schematic diagram of a human body parameter detection device provided by an embodiment of the present invention.

[0043] Figure 2 It is a schematic diagram of the installation of the interactive panel and the base provided in an embodiment of the present invention.

[0044] Figure 3 It is a schematic diagram of the back side of the interactive panel provided by the embodiment of the present invention.

[0045] Figure 4 It is a diagram of the internal structure of the interactive panel provided by an embodiment of the present invention.

[0046] Figure 5 is along Figure 4 Schematic diagram of the cross section of AA.

[0047] Figure 6 and Figure 7 It is a display diagram of the measurement result provided by the embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] See also Figure 1 , an embodiment of the present invention provides a human body parameter measurement device, which includes:

[0050] Base 10;

[0051] The interactive panel 20 includes a fixed frame 21 and a first depth camera 22, a second depth camera 23, a touch screen 24 and a host 25 arranged on the fixed frame 21. The fixed frame 21 is detachably connected to the base 10, the touch screen 24 is fixed to the surface of the fixed frame 21, the first depth camera 22 and the second depth camera 23 are tilted at different heights of the fixed frame 21, and the host 25 is electrically connected to the first depth camera 22, the second depth camera 23 and the touch screen 24.

[0052] A turntable 30, the turntable 30 includes a measuring platform 31 for a human body to stand on and a base 32 connected to the measuring platform 31, the measuring platform 31 can rotate relative to the base 32, the measuring platform 31 includes an electrode sheet 33 located on the surface and a human body composition measuring component located inside, the electrode sheet 33 is electrically connected to the human body composition measuring component, and the human body composition measuring component is electrically connected to the host 25; wherein:

[0053] The host 24 includes a memory and a processor, and the processor is configured to implement the following steps by executing a computer program stored in the memory:

[0054] Obtaining a depth image of the person being measured standing on the turntable 30 through the first depth camera 22 and the second depth camera 23, and obtaining the size of a key part of the person being measured according to the depth image;

[0055] Acquiring body composition data of the measured person through the electrode sheet 33 and the body composition measurement component;

[0056] The key part dimensions and the body composition data are displayed on the touch screen 24 .

[0057] In this embodiment, if Figure 2 As shown, the fixed frame 21 is generally in the shape of a thin rectangular parallelepiped. The base 10 includes a bottom plate and two parallel connecting arms 12 arranged on both sides of the bottom plate 11. Along the width direction, the two sides of the fixed frame 21 are located just on the inner side of the two connecting arms 12, so that the fixed frame 21 can be partially embedded in the base 10, and then the fixed frame 21 is fixed to the connecting arms 12 by screws or other fixing methods to complete the connection between the interactive panel 20 and the base 10.

[0058] In this embodiment, the fixed frame 21 is formed with a surface and a receiving cavity, the first depth camera 22, the second depth camera 23, and the touch screen 24 are arranged on the surface of the fixed frame 21, and the host 25 is arranged in the receiving cavity. In addition, in order to facilitate electrical connection with the outside, the fixed frame 21 is also formed with necessary interfaces, such as a USB interface or other interfaces, etc., which are not described in detail in the present invention.

[0059] In this embodiment, a glass mirror is formed on the front surface of the fixed frame 21, and a make way groove is formed on the glass mirror. The touch screen 24 is installed in the make way groove, and the glass mirror and the touch screen 24 are arranged on the fixed frame 21 by a full bonding process. Among them, the touch screen 24 is used for user interaction and data display. The glass mirror can provide a glass mirror effect and can be used as an ordinary dressing mirror in the screen-off state. In addition, in order to meet the camera's requirements for infrared transmittance, a masking process is adopted to ensure that the infrared transmittance of the mirror at the depth camera lens reaches more than 92% without affecting the mirror effects of other areas of the mirror.

[0060] In this embodiment, preferably, Figure 3 As shown, a wall hanging 26 may be provided on the rear surface of the fixed frame 21, and the entire interactive panel 20 may be hung on the wall as a whole through the wall hanging 26, so that the device can further reduce the requirements for the site and adapt to more scenes.

[0061] In this embodiment, preferably, Figure 2As shown, a space 27 for accommodating the turntable 30 is formed at the bottom of the fixed frame 21 .

[0062] When not in use, the turntable 30 can be stored in the space 27 , and when in use, the turntable 30 can be moved out of the space 27 , thus further saving space.

[0063] In this embodiment, if Figure 4 and Figure 5 As shown, the first depth camera 22 and the second depth camera 23 are tilted at different heights of the fixed frame 21. In particular, in one embodiment, the distance between the first depth camera 22 and the horizontal ground is approximately 1700 mm, and its lens is tilted downward; the distance between the second depth camera 23 and the horizontal ground is approximately 500 mm, and its lens is tilted upward. Of course, it should be noted that in other embodiments of the present invention, the height and tilt angle of the two depth cameras can be adjusted according to actual needs, and the present invention does not make specific limitations.

[0064] In this embodiment, since the lenses of the two depth cameras are tilted, even when the turntable 30 is close to the interactive panel 10, the two depth cameras can fully capture the full picture of the person being measured standing on the turntable 30, thus reducing the requirement for the site area.

[0065] In this embodiment, in particular, the tilt angles of the first depth camera and the second depth camera are for:

[0066]

[0067] d2=H2-H1

[0068] Among them, d1 is the distance between the measured person and the interactive panel;

[0069] h1 is the distance between the first depth camera and the horizontal ground;

[0070] h2 is the distance between the second depth camera and the horizontal ground;

[0071] H1 is the distance from the lowest point where the first depth camera's viewing cone intersects with the person being measured to the horizontal plane;

[0072] H2 is the distance from the lowest point where the second depth camera's viewing cone intersects the measured person to the horizontal plane.

[0073] By adopting such an inclination angle, it can be ensured that the depth image of the user's complete body can be accurately obtained, and the area requirement for the site can be reduced as much as possible.

[0074] In this embodiment, the human body composition measurement component includes a body fat scale. The turntable 30 is used to collect human body electrical impedance data and drive the person being measured to rotate. In order to ensure that the power of the turntable 30 can rotate a maximum load of 200 kg and the stability of the rotation speed, the turntable 30 adopts the USB-C3.1 interface standard to output a rated power of 19V / 2A.

[0075] The human body electrical impedance data can be measured and obtained by two electrode sheets 33 arranged on the measuring platform 31 , and the electrode sheets 33 can be made of SUS 304 material.

[0076] Among them, considering that the weight and body fat scales on the market are generally required to be placed on a flat and hard ground when weighing. In order to increase the stability of the turntable 30, the base 32 is made of bakelite, and the gravity sensor is in direct contact with the bakelite, not with the ground, reducing the equipment's requirements on the ground.

[0077] In addition, the turntable 30 also provides the voltage required for the interactive panel 20 to work. The turntable 30 is approximately 750 mm away from the depth camera and is connected to the host 25 using a double-headed USB-C3.1 data cable, which is both a power supply cable and a data transmission cable.

[0078] In this embodiment, the host 25 includes an interactive module, a human three-dimensional model reconstruction module and a body fat calculation module. Through the cooperation of these three modules with external sensors and the touch screen 24, the body parameters of the person being measured can be detected and displayed.

[0079] The working process of the present invention is described in detail below:

[0080] Before the person being measured is measured, he or she can first enter and confirm user information through the interactive module. For example, the person being measured can register, log in, and perform other operations through the interactive model. In addition, the person being measured can also scan the QR code on the touch screen to achieve binding.

[0081] Specifically, the interface of the interactive module includes a device self-checking interface, a login interface, a scanning interface, a result display interface, etc.

[0082] Among them, in the device self-check interface, the interactive module can be used to perform a series of initial checks such as network detection, software version detection, device registration detection, system time detection, turntable connection status detection, turntable position detection, etc.

[0083] On the login interface, the interactive module can provide multiple ways for users to register and log in, such as logging in by scanning a QR code, logging in through face recognition, registering and logging in by entering an account number and password, etc.

[0084] In the scanning interface, the interactive module is used to scan the body of the person being measured to obtain a depth image.

[0085] The person being measured stands on the turntable 30 , and his two feet contact two electrode sheets 33 arranged on the surface of the turntable 30 respectively.

[0086] The host 25 controls the first depth camera 22 and the second depth camera 23 to detect the standing posture of the person being measured, and guides the standing posture of the person being measured to reach a preset measurement specification.

[0087] The host 25 can make a rough judgment on the standing posture of the measured person through the first depth camera 22 and the second depth camera 23, and then judge whether the standing posture of the measured person meets the preset measurement specifications by comparing it with the standard standing posture. For example, it can judge whether the measured person stands straight, whether the arms are open, etc., and then according to the detection results, the host 25 can remind the measured person to adjust the standing posture by sound until the measurement specifications are met.

[0088] Next, the host 25 controls the turntable 30 to rotate, and simultaneously controls the first depth camera 22 and the first depth camera 23 to alternately collect depth images corresponding to various parts of the person being measured located on the turntable 30, and processes the collected depth images through the human body three-dimensional model reconstruction module to form a real human three-dimensional human body model corresponding to the person being measured, extract point cloud data in the real human body three-dimensional human body model, and calculate the sizes of key parts of the person being measured.

[0089] The key parts may include chest circumference, waist circumference, height, etc., which are not specifically limited in the present invention. After the three-dimensional human body model is reconstructed, the key part dimensions of the measured person can be obtained through identification.

[0090] Next, the host 25 receives the data from the turntable 30 through the electrode sheet 33 and the human body composition measurement component through the data line, and obtains the body composition data of the measured person through the body fat calculation module.

[0091] For example, the weight, body fat and other data of the person being measured can be obtained.

[0092] Finally, if Figure 6 and Figure 7 As shown, the host 25 displays the data of the key parts size, body fat, weight, etc. of the measured person on the result display interface.

[0093] In this embodiment, after completing the measurement, the measured person can choose to re-measure, save the measurement data, export the measurement data, etc. In addition, the host 25 can also bind the current detection data with the user ID and save it locally so that the measured person can view the detection data later.

[0094] In summary, the human body parameter detection device provided in this embodiment, by tilting the two depth cameras, enables the interactive panel 10 and the turntable 30 to obtain the complete body shape of the person being measured without requiring too much distance, thereby reducing the demand for the site. In addition, this embodiment also has the advantages of low detection cost, comprehensive detection, high detection data accuracy, and good stability.

[0095] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A human body parameter measuring device, characterized in that: include: Base; An interactive panel, the interactive panel comprising a fixed frame and a first depth camera, a second depth camera, a touch screen and a host arranged on the fixed frame, the fixed frame being detachably connected to the base, the touch screen being fixed to the surface of the fixed frame, the first depth camera and the second depth camera being tilted at different heights of the fixed frame, and the host being electrically connected to the first depth camera, the second depth camera and the touch screen; A turntable, the turntable comprising a measuring platform for a human body to stand on and a base connected to the measuring platform, the measuring platform can rotate relative to the base, the measuring platform comprises an electrode sheet located on the surface and a human body composition measuring component located inside, the electrode sheet is electrically connected to the human body composition measuring component, and the human body composition measuring component is electrically connected to the host; wherein: The host includes a memory and a processor, and the processor is configured to implement the following steps by executing a computer program stored in the memory: Obtain a depth image of the person being measured standing on the turntable through the first depth camera and the second depth camera, reconstruct a real human body three-dimensional model of the person being measured through the depth image, and then obtain the dimensions of key parts of the person being measured based on the real human body three-dimensional model; Acquiring body composition data of the measured person through the electrode sheet and the body composition measurement component; Displaying the key part dimensions and the body composition data on the touch screen; The distance between the first depth camera and the horizontal ground is 1700mm, and its lens is tilted downward; the distance between the second depth camera and the horizontal ground is 500mm, and its lens is tilted upward; the inclination angles of the first depth camera and the second depth camera to the horizontal plane are for: Among them, d1 is the distance between the measured person and the interactive panel; h1 is the distance between the first depth camera and the horizontal ground; h2 is the distance between the second depth camera and the horizontal ground; H1 is the distance from the lowest point where the first depth camera's viewing cone intersects with the person being measured to the horizontal plane; H2 is the distance from the highest point where the second depth camera's viewing cone intersects the measured person to the horizontal plane.

2. The human body parameter measuring device according to claim 1, characterized in that: The base is made of bakelite.

3. The human body parameter measuring device according to claim 1, characterized in that: A space for accommodating the turntable is formed at the bottom end of the fixed frame.

4. The human body parameter measuring device according to claim 1, characterized in that: A glass mirror is formed on the surface of the fixed frame, a recess is formed on the glass mirror, the touch screen is installed in the recess, and the glass mirror and the touch screen are arranged on the fixed frame by a full-fitting process.

5. The human body parameter measuring device according to claim 4, characterized in that: The first depth camera and the second depth camera are arranged on the glass mirror surface by using a masking process, and the infrared transmittance of the mirror at the lens of the first depth camera and the second depth camera is above 92%.

6. The human body parameter measuring device according to claim 1, characterized in that: The turntable is electrically connected to the host via a double-headed USB-C3.1 data cable, and the USB-C3.1 interface standard outputs a rated power of 19V / 2A.

7. The human body parameter measuring device according to claim 1, characterized in that: A wall-mounted component is arranged on the back of the fixing frame.

8. The human body parameter measuring device according to claim 1, characterized in that: The depth image of the person being measured standing on the turntable is obtained by the first depth camera and the second depth camera, and the size of the key parts of the person being measured is obtained according to the depth image, specifically: Controlling the first depth camera and the second depth camera to detect the standing posture of the person being measured, and guiding the standing posture of the person being measured to reach a preset measurement specification; Controlling the turntable to rotate, and simultaneously controlling the first depth camera and the second depth camera to alternately acquire depth images corresponding to various parts of the person being measured located on the turntable; Processing the acquired depth image to form a three-dimensional human body model corresponding to the person being measured; Extract point cloud data from the 3D human body model and calculate the dimensions of key parts of the person being measured.

9. The human body parameter measuring device according to claim 1, characterized in that: The human body composition measurement component includes a body fat scale.

Images