CN108398177B

CN108398177B - Three-dimensional human body scanning equipment with built-in weighing module

Info

Publication number: CN108398177B
Application number: CN201810314818.9A
Authority: CN
Inventors: 杨少毅; 褚智威; 拜宏伟
Original assignee: Xi'an Weiplastic Intelligent Technology Co Ltd
Current assignee: Xi'an Weiplastic Intelligent Technology Co Ltd
Priority date: 2018-04-10
Filing date: 2018-04-10
Publication date: 2020-04-03
Anticipated expiration: 2038-04-10
Also published as: CN108398177A

Abstract

The invention relates to a three-dimensional human body scanning device with built-in weighing modules, which comprises a fixed upright post, a rotary table, a connecting plate and a depth camera, wherein the rotary table comprises a bottom plate, a rotary table, a driving rotary assembly and a plurality of weighing sensors, the bottom end of the rotary table is open and the periphery of the rotary table is closed, the top end of the rotary table is provided with a mounting hole, the mounting hole is communicated with the bottom end opening, the inner cavity of the rotary table is provided with a fixed plate, a human body weighing platform is embedded in the mounting hole, a plurality of weighing modules are arranged between the human body weighing platform and the fixed plate, the weighing modules are uniformly distributed along the axis of the human body weighing platform, the bottom end of a balancing assembly in each weighing module is contacted with the weighing sensors. The invention has self-aligning function to the rotating platform through the balance structure, and can still ensure that the gravity center of the acting force of the human body is not shifted after the human body stands on the rotating platform, thereby improving the detection precision of the human body three-dimensional scanning equipment.

Description

Three-dimensional human body scanning equipment with built-in weighing module

Technical Field

The invention belongs to the field of human body measurement, and particularly relates to a three-dimensional human body scanning device with a built-in weighing module.

Background

A human body three-dimensional scanner, also called a 3D human body scanner, is used for non-contact automatic measurement of the surface profile of a three-dimensional human body by utilizing an optical measurement technology, a computer technology, an image processing technology, a digital signal processing technology and the like. The human body whole body (half body) scanning system fully utilizes the advantages of rapidness of optical three-dimensional scanning and harmlessness of white light to a human body, and carries out multi-angle and multi-azimuth instantaneous scanning on the human body whole body or half body within 3-5 seconds.

A common human body three-dimensional scanner is characterized in that a single depth camera is fixed on a sliding block, and human body information is scanned in a mode that the sliding block moves up and down along a sliding rail. The depth camera is driven by a motor to move up and down along a guide rail, and the following defects exist in the mode of scanning the human body standing on the turntable: 1. the guide rail camera running up and down is dragged by a motor, so that noise inevitably occurs when a human body is scanned, and sensory experience of a user is influenced; 2. the camera moves along the guide rail, so that the establishment time of the human body 3D model is longer; 3. because revolving stage motor, slider motor start time and functioning speed etc. are different for 3D camera is taken a picture the position and is unset, and when the slider drove 3D camera and is taken a picture in three positions about the upper and lower of stand, the position of shooing at every turn can have the deviation slightly, therefore needs the algorithm to handle, the fit, just so leads to the synthetic stability of model to have the restriction slightly.

Based on this, it is urgently needed to provide a device for simultaneously and rapidly scanning a human body through a plurality of depth cameras.

Disclosure of Invention

In order to solve the above problems in the prior art, the present invention provides a three-dimensional human body scanning device with a built-in weighing module. The technical problem to be solved by the invention is realized by the following technical scheme:

a three-dimensional human body scanning device with a built-in weighing module comprises a fixed upright, a rotary table, a connecting plate and a depth camera, wherein one end of the connecting plate is connected with the fixed upright, the other end of the connecting plate is connected with the rotary table, and the depth camera is arranged on the fixed upright; the driving rotating assembly is arranged between the bottom plate and the turntable;

the top end of the rotary table is provided with a mounting hole which is communicated with the opening at the bottom end, the inner cavity of the rotary table is provided with a fixed plate, a human body weighing platform is embedded in the mounting hole, a plurality of weighing modules are arranged between the human body weighing platform and the fixed plate, and the weighing modules are uniformly distributed along the axis of the human body weighing platform;

the weighing module comprises: lower casing, last casing, weighing sensor and the balanced subassembly that supplies weighing sensor to place, with detachable mode fixed connection after casing and last casing phase lock down, go up the casing and fix in the cavity that the bottom of human weighing platform is used for installing weighing module, the casing is fixed on the fixed plate down, the bottom and the weighing sensor contact of balanced subassembly, the clearance has between the top of balanced subassembly and the last casing roof.

The three-dimensional human body scanning device with the built-in weighing module,

four corners of the inner cavity of the upper shell are respectively provided with a fixing column for fixing the weighing sensor, and the column-shaped part extends from the top wall of the upper shell to the opening direction; a through hole for the columnar piece to pass through is formed in the center of the weighing sensor;

the balance assembly comprises a shaft ring with a hemispherical structure and a seat ring provided with a hemispherical groove, and a cylindrical part which extends downwards and penetrates through the seat ring from the axis of the seat ring is arranged at the bottom end of the shaft ring; the center department of seat circle is equipped with the round hole that supplies the column to pass, and the internal diameter of this round hole is greater than the external diameter of column, the interior sphere contact of the outer sphere of shaft collar and seat circle to realize the tilting motion of shaft collar in the small-range.

The above three-dimensional human body scanning device with the built-in weighing module, the driving rotation assembly comprises: the gear is arranged on an output shaft of the rectangular shaft speed reducing motor, and the gear is meshed with the inner gear ring;

the rolling support pieces are uniformly distributed along the axis of the convex ring and fixedly arranged on the bottom surface of the convex ring, the rolling pieces of the rolling support pieces are in contact with the top surface of the bottom plate, the three-dimensional human body scanning equipment with the weighing modules is arranged in the equipment, the rotary table further comprises a plurality of rolling support pieces, the rolling support pieces are uniformly distributed along the axis of the convex ring and fixedly arranged on the bottom surface of the convex ring, and the rolling pieces of the rolling support pieces are in contact with the top surface of the bottom plate. .

The three-dimensional human body scanning device with the weighing module arranged inside is characterized in that the turntable further comprises a rotary bearing disc, and the rotary bearing disc comprises: the bottom plate comprises an outer ring, an inner ring and a rolling body embedded between the outer ring and the inner ring, wherein the height of the inner ring is higher than that of the outer ring, the top surface of the inner ring is fixedly connected with the bottom surface of the fixing plate, the outer ring is fixedly arranged at the center of the bottom plate, and the rectangular shaft speed reduction motor is positioned on any side of the outer ring.

The three-dimensional human body scanning equipment with the built-in weighing module further comprises a pull rod handrail, wherein the pull rod handrail is arranged on the top surface of the rotary table;

the pull rod handrail comprises a handle and a fixed seat cover, wherein an opening is formed in one side wall of the fixed seat cover, and a sawtooth part extending along the vertical direction is arranged on the side edge of the opening;

a sliding rail is arranged in the fixed seat sleeve, a sliding part of the sliding rail is provided with a push-pull electromagnet, a push-pull rod of the push-pull electromagnet is fixedly provided with an occlusion piece engaged with the sawtooth part, and the push-pull electromagnet is switched on and off to realize occlusion and separation of the occlusion piece and the sawtooth part; the handle is fixedly arranged at the top end of the sliding part.

In the three-dimensional human body scanning device with the built-in weighing module, the push-pull rod of the push-pull electromagnet is vertically arranged; the occluding piece is provided with an inclined guide long circular hole, the sliding part is provided with a guide column penetrating through the guide long circular hole, so that the guide long circular hole moves relative to the guide column when a push-pull rod of the push-pull electromagnet moves, and the occluding piece and the sawtooth part are occluded and separated.

In the three-dimensional human body scanning device with the built-in weighing module, the fixed part of the slide rail is fixedly arranged on the inner wall of the fixed seat cover, and the sliding part is connected with the fixed part in a sliding manner;

the fixed seat cover is sleeved with an outer cover which is fixedly connected with the handle.

According to the three-dimensional human body scanning device with the built-in weighing modules, the number of the depth cameras is multiple, the fixed stand column is formed by splicing a long first cuboid and a short and thick second cuboid, a plurality of vertically-distributed grooves are formed in the first cuboid, and the camera body is fixed in the grooves; a threading hole is formed in the bottom wall of each groove, and the cable penetrates through the threading hole; the second cuboid is of a hollow structure, and a host is arranged in the second cuboid.

According to the three-dimensional human body scanning device with the built-in weighing module, the processor and the driving module are further arranged in the second cuboid, the photoelectric sensor is embedded on the bottom plate, a transmission light path of the photoelectric sensor is perpendicular to the axis of the rotating assembly, and the bottom wall of the convex ring is provided with the light blocking sheet which can periodically block the transmission light path of the photoelectric sensor;

the depth camera is interactively connected with a host, the host is interactively connected with a processor, the output end of the weighing module is connected with the input end of the processor, the output end of the photoelectric sensor is connected with the input end of the processor, and the output end of the processor is electrically connected with the rectangular-axis speed reduction motor through the driving module;

the weighing module is used for measuring weight information of a measured human body on the rotary table, and the depth cameras are used for acquiring depth images of the measured human body in real time and transmitting the depth images to the host; the host is used for receiving and processing the depth image to generate a human body 3D model; the driving module is electrically connected with the rectangular-axis speed reducing motor, the rectangular-axis speed reducing motor drives the rotary table to rotate, and the depth camera collects depth images in the process that the rotary table rotates for a circle.

The invention has the beneficial effects that:

1. the invention has self-aligning function to the rotating platform through the balance structure, and can still ensure that the gravity center of the acting force of the human body is not shifted after the human body stands on the rotating platform, thereby improving the detection precision of the human body three-dimensional scanning equipment.

2. The host computer of the invention simultaneously issues photographing instructions to the plurality of depth cameras, and the depth cameras collect and output depth images of the detected human body, so that the multi-camera three-dimensional human body scanning equipment has higher scanning speed.

3. According to the invention, the rectangular-axis speed reducing motor is embedded in the rotary table for rotating and weighing the human body, so that the height of the rotary table is greatly reduced, and the volume of the rotary table is reduced;

4. according to the invention, the depth cameras are directly fixed on the upright post, so that the weight of the whole upright post is greatly reduced, and the transportation and disassembly and assembly processes of the upright post are more convenient.

5. The height of the handle can be quickly adjusted according to the height of a user by switching on and off the push-pull type electromagnet, so that the handle is time-saving and labor-saving, has strong adaptability, simple structure and low cost, and has long service life.

6. The invention realizes the height fixation of the slide rail through the meshing of the sawtooth part and the occluding part, has high fixation reliability, small volume and space saving.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of a three-dimensional human body scanning apparatus.

Fig. 2 is a schematic structural view of the pull rod armrest.

Fig. 3 is a schematic view showing the elongated state of the pull rod armrest.

Fig. 4 is a schematic structural diagram of the pull rod handrail push-pull type electromagnet when the power is off.

Fig. 5 is a schematic structural diagram of the pull rod handrail push-pull type electromagnet when the pull rod handrail push-pull type electromagnet is electrified.

Fig. 6 is a schematic structural view of a pull rod handrail push-pull type electromagnet positioned below an engagement piece.

Fig. 7 is a schematic view of the internal structure of the pull rod armrest.

Fig. 8 is a block diagram of a three-dimensional body scanning system.

Fig. 9 is a circuit schematic of a motor drive module.

Fig. 10 is a schematic view of the entire structure of the turntable.

Fig. 11 is a schematic view of the internal structure of the turntable.

Fig. 12 is a schematic view of the turn table of fig. 10 in a disassembled state.

FIG. 13 is a disassembled schematic view of the weighing module.

In the figure: 11. a first cuboid; 12. a second cuboid; 13. a depth camera; 2. a connecting plate; 3. a handrail; 31. a handle; 32. fixing the seat cover; 321. an opening; 322. a serration; 33. a sliding part; 331. a guide post; 34. a push-pull electromagnet; 341. a push-pull rod; 35. an engaging member; 351. a guide oblong hole; 36. a fixed part; 37. a housing; 38. switching a key; 4. a turntable; 41. an electrode sheet; 42. a nut; 43. a human body weighing platform; 45. a fixing plate; 45-1, an upper shell; 45-11, fixing the column; 45-12, upper shell holes; 46. a shaft ring; 47. a weighing sensor; 49. a seat ring; 401. a rolling support; 402. an annular plate; 403. an inner gear ring; 404. a rectangular axis gear motor; 405. a rotating bearing disk; 406. a middle plate; 407. a weighing guide column 417. photosensor; 418. a base plate; 420. a turntable; 421. a convex ring.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

A human body three-dimensional scanning system (application number of 2017207595943) applied in 2017, 6 and 27 of my company discloses a human body three-dimensional scanning system, which comprises a PC (personal computer), a processor, a weight and body fat measuring module, a weighing sensor, a turntable, a guide rail, a turntable guide rail driving device, a 3D (three-dimensional) camera, an electrode type resistance measuring module for measuring human body resistance, a guide rail slider position detecting sensor and a turntable position detecting sensor, wherein the PC is interactively connected with the 3D camera through a USB (universal serial bus) module, and the 3D camera is in sliding connection with the guide rail through a slider and slides up and down along the guide rail; the guide rail slide block position detection sensor is arranged at the upper end part and/or the lower end part of the guide rail; the rotary table position detection sensor, the body weight and body fat measurement module, the weighing sensor and the electrode type resistance measurement module are all arranged on the rotary table; the processor is interactively connected with the PC and the body weight and body fat measuring module; the input end of the body weight and body fat measuring module is connected with the output end of the weighing sensor and the output end of the electrode type resistance measuring module; the input end of the processor is connected with the output end of the guide rail slide block position detection sensor and the output end of the turntable position detection sensor; the output end of the processor is connected with the input end of the turntable guide rail driving device, and the output end of the turntable guide rail driving device is connected with the turntable and the guide rail.

Application number 2017207595943's application document is that to cover the scanning comprehensively to the human body through 3D camera cooperation guide rail and revolving stage, generates human three-dimensional model and carries out the measurement of human height based on this three-dimensional model through the PC, has reduced external factor to measured data's influence, and fast, efficient. This application passes through track slider position detection sensor with the positional information of 3D camera and feeds back to the motion range of treater in order to restrict the slider, makes the 3D camera scan the human body comprehensively in the safety range, and through the motion of step motor accurate control 3D camera.

The motion condition and the revolving stage turned angle of current revolving stage of revolving stage position detection sensor feedback make the revolving stage can be steady rotate a week, cooperate the 3D camera to accomplish comprehensive scanning, keep the integrality of human 3D model data.

In the course of subsequent development, we found that: the 3D camera passes through motor drive and moves up and down along the guide rail, in the mode of scanning the human body of standing on the revolving stage, has following defect: 1. the guide rail camera running up and down is dragged by a motor, so that noise inevitably occurs when a human body is scanned, and sensory experience of a user is influenced; 2. the camera moves along the guide rail, so that the establishment time of the human body 3D model is longer; 3. because revolving stage motor, slider motor start time and functioning speed etc. are different for 3D camera is taken a picture the position and is unset, and when the slider drove 3D camera and is taken a picture in three positions about the upper and lower of stand, the position of shooing at every turn can have the deviation slightly, therefore needs the algorithm to handle, the fit, just so leads to the synthetic stability of model to have the restriction slightly.

Based on this, the embodiment provides an improved multi-camera three-dimensional human body scanning device, which, as shown in fig. 1, includes a fixed stand column, a rotating table 4, a connecting plate 2, and a depth camera 13, wherein one end of the connecting plate 2 is connected with the fixed stand column, the other end of the connecting plate 2 is connected with the rotating table 4, the depth camera 13 includes a camera body and a cable connected with the camera body, the depth camera 13 is multiple, the fixed stand column is formed by splicing a first elongated cuboid and a second short and thick cuboid, a plurality of vertically distributed grooves are arranged on the first cuboid 11, and the camera body is fixed in the grooves; a threading hole is formed in the bottom wall of each groove, and a cable penetrates through the threading holes; the second cuboid is of a hollow structure, and a host is arranged in the second cuboid.

Preferably, the number of the depth cameras 13 is three, and the three depth cameras 13 can scan the information of the human body on the complete turntable 4 and can reduce the production cost to the maximum extent.

The fixed stand of this embodiment includes the first cuboid of slender form, the second cuboid of short thick form, and a host computer is placed to first cuboid concatenation in the top of second cuboid 12, has set firmly a plurality of degree of depth cameras 13 on the first cuboid 11, the inner chamber of second cuboid 12, and the cable passes the backplate of second cuboid 12 and is connected with the host computer. The inner cavity of the second cuboid 12 is also provided with a processor, and the processor is interactively connected with the host.

Since the depth camera 13 of this embodiment scans the information of the human body on the turntable 4, the connection plate 2 is also required to be disposed between the turntable 4 and the column. In particular, the connection plate 2 preferably: extends from the bottom surface of the fixed upright to the front of the depth camera 13 until contacting the turntable 4. Because the weighing module and the electrode plate 41 on the rotary table 4 need to perform data interaction with the processor, the bottom surface of the connecting plate 2 is provided with a wire passing groove with a downward opening, and the wire passing groove is used for accommodating a plurality of wires.

The embodiment omits a moving slide rail, a slide block for the up-and-down movement of the depth cameras 13, a belt mechanism and a motor for driving the slide block to move, and a drag chain for protecting cables of the depth cameras 13, and directly fixes the depth cameras 13 on the stand column. The noise that sends when this embodiment has not only stopped slider up-and-down motion has improved user experience and has felt, has left out the hardware circuit of driving motor motion part in hardware circuit part moreover, and more importantly greatly reduced the weight of whole stand, it can be more convenient to let transportation and equipment dismouting in-process.

As shown in fig. 10-12, the turntable 4 of the present embodiment comprises a bottom plate 418, a turntable 420, a driving rotation assembly, a rotation bearing plate 405 and a plurality of rolling support members 401, wherein the bottom end of the turntable 420 is open and the periphery is closed, and the bottom of the peripheral wall of the turntable 420 is provided with a convex ring 421 extending inwards, and the convex ring 421 is parallel to the top surface of the turntable 420; the drive rotating assembly includes: the gear is arranged on the output shaft of the rectangular shaft speed reducing motor 404, and the gear is meshed with the inner gear 403; the rolling support members 401 are uniformly distributed along the axis of the convex ring 421, the rolling support members 401 are fixedly arranged on the bottom surface of the convex ring 421, and the rolling members of the rolling support members 401 are in contact with the top surface of the bottom plate 418; the top end of the turntable 420 is provided with a mounting hole which is communicated with the opening at the bottom end, a human body weighing platform 43 is embedded in the mounting hole, the inner cavity of the turntable 420 is provided with a fixing plate, and the fixing plate is provided with a plurality of weighing modules; the weighing module is in contact with a human body weighing platform 43. The weighing module comprises a weighing sensor and a weighing guide pillar which are embedded at the bottom end of the fixed plate, and an induction hole is formed in the center of the weighing sensor; the top surface of the guide pillar of weighing and the bottom surface fixed connection of platform of weighing, the guide pillar of weighing runs through fixed plate, response hole according to the preface, and the free end of the guide pillar of weighing still is equipped with the mounting. The rotary bearing disk 405 includes: the inner ring is higher than the outer ring, the top surface of the inner ring is fixedly connected with the bottom surface of the fixing plate, the outer ring is fixedly arranged at the center of the bottom plate 418, and the rectangular axis speed reduction motor 404 is positioned on any side of the outer ring.

In actual production, the turntable of the embodiment can be integrally formed by using a mold, and certainly, the turntable can be assembled after parts are manufactured independently. The mold injection molding process is adopted, so that the strength of the whole turntable can be enhanced, the process can be simplified, and the mold opening cost is high; the process of assembling after independently preparing parts is adopted, the process is complex, and the cost is low. The embodiment also provides a structure for processing the independent part of the turntable, and the turntable 4 comprises a human body weighing platform, an intermediate plate (equivalent to the top surface of the turntable), an annular plate (convex ring) and a fixing plate.

Specifically, as shown in fig. 10 to 12, the turntable of the present embodiment includes a bottom plate 418, a plurality of rolling supports 401, and a rotating assembly disposed coaxially with the bottom plate 418, the rolling supports 401 being disposed between the bottom plate 418 and the rotating assembly, the plurality of rolling supports 401 being uniformly distributed along the axis of the annular plate 402; the inner wall of the rotating component is provided with an inner gear ring 403, the bottom plate 418 is embedded with a rectangular-axis speed reducing motor 404, an output gear of the rectangular-axis speed reducing motor 404 is meshed with the inner gear ring 403, and the rotating component rotates relative to the bottom plate 418 through the operation of the rectangular-axis speed reducing motor 404.

The rotating component is connected and matched with an output gear of the rectangular-axis speed reducing motor 404 through the inner gear ring 403, and the inner gear ring 403 drives the rotating component to rotate relative to the bottom plate 418 under the action of the rectangular-axis speed reducing motor 404. The inner gear ring 403 is matched with an output gear of the rectangular-axis speed reduction motor 404, so that the transmission precision is high, and the rotation angle is easy to control.

The rolling support 401 limits the distance between the bottom plate 418 and the rotating assembly, which is larger than the distance between the rectangular axis speed reducing motor 404 and the top wall to the bottom wall of the rotating assembly, thus ensuring the realization of the basic functions of the turntable; the bearing upper limit of the rotary table can be improved, and the application range of the rotary table is expanded; secondly, rolling support member 401 reduces the load of rectangular axle gear motor 404 when realizing the stable support to the rotating assembly, makes the revolving stage smoothly move, prolongs the life of rectangular axle gear motor 404. The ring gear 403 may be integrally formed with the ring plate 402, or may be separately machined and then fixedly connected.

Those skilled in the art can know that the rolling support member 401 of this embodiment can be various, as long as can realize the stable effectual support of revolving unit, and can reduce bottom plate 418, the rotational friction between the revolving unit can, the rolling support member 401 can be a plurality of universal balls of flying saucer, it is specific, the top of universal ball of flying saucer can pass through screw rod and cyclic annular board 402 fixed connection, the universal ball bottom of flying saucer is with bottom plate 418 roll cooperation, when the revolving stage rotates, the universal ball of flying saucer follows the revolving unit motion.

The rolling support 401 may also be a conventional rolling bearing, such as a deep groove ball bearing, which is fixed on the annular plate 402 by a central shaft, specifically, the annular plate 402 is provided with a plurality of slots for fixing the rolling support 401, the rolling bearing is mounted on the central shaft, the central shaft is mounted in the slots, it should be noted that the axial direction of the central shaft needs to be perpendicular to the axis of the rotating assembly, i.e. to coincide with the radial line of the annular plate 402; at this time, when the rotating assembly is rotated relative to the bottom plate 418 by the orthogonal-axis gear motor 404, the rolling bearing rolls in a direction perpendicular to the central axis. It will be appreciated by those skilled in the art that when the central shaft is directed to the rotation axis of the rotating assembly, the roller mounted on the central shaft moves along the tangential direction of the track circle with the rotation axis as the center, so that the roller can move circularly under the action of centripetal force, and in this way, the linear contact between the bearing and the bottom plate 418 is more stable, and the bearing performance of the rolling bearing is better.

In addition, the rolling support 401 may further include balls, such as steel balls, specifically, a plurality of ball grooves for accommodating the balls are uniformly formed in the bottom plate 418, a ball is disposed in each ball groove, an annular groove corresponding to the ball groove is formed in the annular plate 402, the top end of the ball is in rolling fit with the annular groove, and the rotating assembly is stably supported by the balls.

In the embodiment, the rectangular axis speed reducing motor 404 is used as the turntable driving motor to reduce the volume of the turntable, the speed reducing motor is an integration of a speed reducer and the driving motor, and the integration can also be called as a gear motor or a gear motor; it has the dual function of driving motor and speed reducer, and the contained angle between the output shaft of the motor of rectangular axis gear motor 404 in this embodiment and the output shaft of reduction gear is ninety degrees, becomes vertical distribution, can be under the prerequisite of guaranteeing great drive ratio, reduces the perpendicular installation space of motor, reduces the vertical height of revolving stage, reduces the revolving stage volume, makes the vertical interval between bottom plate 418 and the rotating assembly diminish simultaneously, and the transmission of rectangular axis speed reduction is more stable.

In order to further reduce the size, a motor mounting groove for mounting the rectangular-axis speed reduction motor 404 is formed in the bottom plate 418, so that the motor body is partially disposed in the bottom plate 418, and the bottom wall of the motor body needs to be higher than the bottom surface of the bottom plate 418 to prevent the motor body from bearing load. Preferably, the top wall and the bottom wall of the motor housing of the rectangular-axis gear motor 404 are parallel planes, and the top wall is the side wall of the rectangular-axis gear motor 404 where the output shaft is located, so that the shape of the motor housing is improved without affecting the normal function of the motor, and compared with the cylindrical side wall of the motor before the improvement, the thickness of the motor housing with the improved top wall and the improved bottom wall parallel to each other is thinner, thereby enabling the height of the rotary table with the rectangular-axis gear motor 404 installed to be smaller.

Further, the portion of the rotating assembly near the center is suspended, i.e., the portion inside the inner gear ring 403 is suspended without physical support, and the rolling support 401 alone carries and transfers the weight of the rotating assembly and the user on the rotating assembly. In the use, along with the lapse of live time, or user's weight is too big, can cause the rotating assembly middle part to produce decurrent deformation, influences the life of revolving stage, in addition, the revolving stage of this embodiment is mainly applied to in the human body rotary weighing equipment, be provided with the component and the structure that are used for measuring the weighing body of weight in the rotating assembly promptly, if the rotating assembly center sinks, then can influence the accuracy nature of weighing element measuring result.

Therefore, the turntable of the present embodiment further includes a rotary bearing disk 405 embedded in the middle of the bottom plate 418, and the rotary bearing disk 405 includes an outer ring fixedly connected to the bottom plate 418 and an inner ring fixedly connected to the bottom wall of the rotary component; the height of the inner ring is higher than that of the outer ring, and a plurality of balls are uniformly distributed on the peripheral wall between the inner ring and the outer ring, so that the inner ring can do circular motion relative to the outer ring. The rotary bearing disc 405 can further make the rotation of the turntable more stable, and can prevent the center of the rotary component from sinking and deforming downwards along with the lapse of the use time or the overweight of the human body; more importantly, the use of the rotary bearing disk 405 configuration allows the rotating assembly to rotate more stably during operation because the rotary bearing disk 405 allows the axis of rotation of the rotating assembly to coincide precisely with the central axis of the base plate 418, i.e., is centered and stable.

In order to increase the safety of the turntable, the body weighing turntable of the present embodiment further includes an intermediate plate 406 for mounting a handrail, the intermediate plate 406 is fixedly connected with the fixed plate 45, the body weighing platform 43 passes through the through slot at the center of the intermediate plate 406 and is fixedly connected with the fixed plate 45, and the handrail is mounted on the intermediate plate 406 to prevent a person from falling off the turntable during the rotation of the turntable. In actual use, it is preferred that the top surface of the human body platform 43 be flush with the top surface of the intermediate plate 406, and that the shape of the through slot in the intermediate plate 406 be compatible with the shape of the weigh plate.

Further, two electrode plates 41 are arranged on the human body weighing platform 43, and the electrode plates 41 are used for sensing and measuring the human body resistance and sending the measured result to the processor. A transmission type photoelectric sensor 417 is embedded on the bottom plate 418, and a transmission light path of the photoelectric sensor 417 is perpendicular to the axis of the rotating assembly; a light barrier is disposed on the bottom wall of the rotating assembly, and periodically blocks the transmission light path of the photo sensor 417. The photoelectric sensor 417 is used for acquiring an initial position and an end position in the rotation process of the rotating assembly, when the rectangular axis speed reducing motor 404 is started, the rotating assembly starts to rotate, the light blocking sheet passes through the light transmission groove of the photoelectric sensor 417 and instantly blocks the light transmission groove, at the moment, the photoelectric sensor 417 acquires the position where the rotating assembly starts to rotate, when the light blocking sheet rotates to the position of the photoelectric sensor 417 again after rotating a whole circle along with the rotating assembly, the light transmission path of the photoelectric sensor 417 can be blocked again, the photoelectric sensor 417 can sense a signal and feed the signal back to the system, the system sends out a control instruction to control the turntable motor to stop working, and the human body turntable stops rotating immediately, so that the human body scanning process is completed.

At present, the common human body three-dimensional scanning equipment on the market mainly ensures that a rotary table is balanced by contacting spherical convex points on 4 or 8 uniformly distributed weighing sensors 47 with the surface below a human body weighing platform 43, and if the surface below the human body weighing platform 43 and the flatness of the contact surface of the weighing sensors 47 and a fixing plate 45 are not processed in place, the gravity center of the acting force of each weighing sensor 47 can be deviated, so that the measurement precision of the weighing sensors 47 is influenced.

In order to overcome the drawback that the self-aligning of the existing weighing module cannot be realized, the embodiment provides a weighing module with a balancing function as shown in fig. 13, which includes: the balance device comprises a lower shell 43-1, an upper shell 45-1 for placing a weighing sensor 47, the weighing sensor 47, a balance assembly and a self-locking nut 42, wherein the self-locking nut 42 is used for limiting the axial displacement between the weighing sensor 47 and the balance assembly, the peripheral wall of the upper shell 45-1 is fixedly connected with a human body weighing platform 43, the lower shell 43-1 and the upper shell 45-1 are fixedly connected in a detachable mode after being buckled, the balance assembly comprises a shaft ring 49 with a hemispherical structure and a seat ring 46 with a hemispherical groove, and the bottom end of the shaft ring 49 is provided with a weighing guide pillar 407 which extends downwards and penetrates through the seat ring 46 from the axis of the seat ring 46; preferably, the lower case 43-1 and the upper case 45-1 are fixedly coupled by a plurality of studs.

A round hole for the weighing guide post 407 to pass through is formed in the center of the seat ring 46, the inner diameter of the round hole is larger than the outer diameter of the weighing guide post 407, and the outer spherical surface of the shaft ring 49 is in contact with the inner spherical surface of the seat ring 46, so that the tilting motion of the shaft ring 49 in a small range is realized;

four corners of the inner cavity of the upper shell 45-1 are respectively provided with a fixing column 45-11 for fixing the weighing sensor 47, and the weighing guide column 407 extends from the top wall of the upper shell 45-1 to the opening direction; the center of the weighing sensor 47 is provided with a through hole for the weighing guide column 407 to pass through.

It should be noted that the load cell 47 of the present embodiment is preferably a half-bridge sensor, and in practical use, the half-bridge sensor may be selected from CZL928DAD, a product of electrical technologies, inc.

The balance assembly of the present embodiment is mainly composed of a race 49 having an outer spherical surface and a race 46 having an inner spherical surface. Because the contact surface is a spherical surface, the contact surface can do tilting motion, namely aligning motion within a certain angle range, when the planeness of the contact surfaces of the surface of the human body weighing platform 43, the half-bridge sensor, the contact chip in the lower shell 43-1 and the like is not processed in place, the gravity center of the acting force can still be ensured not to shift.

In consideration of the fixing problem of the balance assembly, the present embodiment also makes structural changes to the half-bridge sensor, wherein the structure of the original half-bridge sensor is as shown in fig. 1, and a spherical bump is disposed on the sensor body. In the half-bridge sensor of this embodiment, as shown in fig. 2, a through hole is formed in the center of the sensor body, and the through hole is used for the weighing guide column 407 to pass through.

The self-locking nut 42 is arranged between the weighing sensor 47 and the top wall of the upper shell 45-1, and the weighing guide column 407 sequentially penetrates through the seat ring 46 and the weighing sensor 47 and then is fixedly connected with the self-locking nut 42; the self-locking nut 42 of the embodiment has the function of preventing looseness, so that the self-locking nut 42 is prevented from loosening and even slipping due to shaking of the human body weighing platform 43 in the body measurement process; the self-locking nut 42 can prevent the balance assembly and the through hole sensor from slipping, and has a limiting effect, and the outer diameter of the self-locking nut 42 is larger than the inner diameter of the through hole. When the weighing module of the embodiment is actually installed, a gap is formed between the self-locking nut 42 and the weighing sensor 47.

It should be noted that, the manner of fixing the load cell 47 to the inner cavity of the upper housing 45-1 in the present embodiment may adopt any fixing means, as long as the function of enabling the load guide pillar 407 to pass through the load cell 47 and to achieve self-alignment through the balance assembly can be achieved. Preferably, a threaded hole is formed at the center of the plurality of fixing posts 45-11, and the load cell 47 is placed on the top surface of the fixing posts 45-11 and fixedly connected by a stud penetrating through the load cell 47.

The collar 49 and the seat ring 46 of the present embodiment are in spherical contact, so the collar 49 and the seat ring 46 can perform tilting motion within a certain angle range, and the whole weighing module can be self-aligning. The plurality of weighing modules of the embodiment are arranged on the human body weighing platform 43, and after a human body stands on the human body weighing platform 43, the gravity center of the acting force of the human body can be ensured not to shift, so that the measurement precision of the human body three-dimensional scanning equipment is improved.

The weighing module of this embodiment employs a half-bridge sensor with a through hole that can be coupled to the balance assembly with a self-locking nut 42. Through the reasonable fit clearance who confirms balanced subassembly and weighing module, just can realize this weighing module in the real work, through the balanced subassembly of taking certainly, guarantee human weighing platform 43 and fixed plate 45 and rather than under the condition of contact surface flatness processing not in place, also enable the focus of human effort and the coincidence of sensor deformation position calibration center, and then guarantee measured data's accuracy.

The working process of the embodiment is as follows:

firstly, the rectangular axis deceleration motor 404 drives the output gear arranged on the output shaft to horizontally rotate, the output gear is meshed with the inner gear ring 403, the rotation of the rectangular axis deceleration motor 404 is transmitted to the inner gear ring 403 through the gear, the inner gear ring 403 drives the annular plate 402 to rotate together relative to the bottom plate 418, the annular plate 402 drives the fixing plate 45, the middle plate 406 and the human body weighing platform 43 to rotate together relative to the bottom plate 418, when the light blocking sheet on the surface of the fixing plate 45 rotates to the position where the photoelectric sensor 417 is arranged on the bottom plate 418, the light blocking sheet blocks the light path of the photoelectric sensor 417 to block the light signal, the photoelectric sensor 417 accordingly acquires the initial position of the rotating component and feeds back the initial position information to the control system, after the rotating component rotates for one circle, the light blocking sheet blocks the light path of the photoelectric sensor 417 again, the photoelectric sensor 417 accordingly acquires the end position of the rotating, the information of the termination position is fed back to the control system, and the control system controls the motor to stop working according to the information fed back by the photoelectric sensor 417 so as to stop the rotating assembly;

in addition, when a person stands on the human body weighing platform 43, because a gap is formed between the top end of the balance assembly and the top wall of the upper shell, the gravity of the human body generates downward pressure which is transmitted to the weighing sensor 47 through the balance assembly, the weighing sensor 47 is deformed due to the gravity, deformation information measured by the weighing sensor 47 is transmitted back to the control system, and the control system obtains a human body weight parameter according to the deformation information transmitted back by the weighing sensor 47; meanwhile, the electrode plate 41 senses the body resistance and transmits resistance information back to the control system, and the control system obtains body fat parameters of the human body according to the body resistance information.

The pull rod armrest of the embodiment, as shown in fig. 2 to 7, includes a handle 31 and a fixed seat cover 32, the fixed seat cover 32 is vertically disposed, an opening 321 is disposed on a side wall of the fixed seat cover 32, a length of the opening 321 extends vertically, and a side edge of the opening 321 is provided with a sawtooth portion 322 extending vertically. The fixed seat cover 32 is internally provided with a slide rail, a fixed part 36 of the slide rail is fixedly arranged on two opposite narrower inner walls of the fixed seat cover 32, the sliding part 33 is connected with the fixed part 36 in a sliding way, and the sliding part 33 can slide in the fixed seat cover 32 in a telescopic way, so that the structure is compact. A sliding part 33 of the sliding rail is provided with a push-pull electromagnet 34, a push-pull rod 341 of the push-pull electromagnet 34 is fixedly provided with an engagement piece 35 engaged with the sawtooth part 322, one side part of the engagement piece 35 is also provided with sawteeth, and the push-pull electromagnet 34 is positioned at one side of the engagement piece 35. The handle 31 is fixed on the top end of the sliding part 33, the switch button 38 is arranged on the handle 31, and the switch button 38 is electrically connected with the push-pull type electromagnet 34. After the push-pull electromagnet 34 is powered on through the operation switch key 38, the push-pull rod 341 contracts to move to compress a spring on the push-pull electromagnet 34, meanwhile, the push-pull rod 341 drives the meshing piece 35 to move, and then the meshing piece 35 is separated from the sawtooth part 322, at the moment, the sliding part 33 of the slide rail can move up and down in a telescopic mode, after the slide rail moves to a proper height, the push-pull electromagnet 34 of the operation switch key 38 is powered off, the push-pull rod 341 resets under the action of the spring, meanwhile, the push-pull rod 341 drives the meshing piece 35 to move, and then the meshing piece 35 is meshed with the sawtooth part 322, at the moment, the sliding part 33 of the slide rail. The user accessible handle 31 supports and supports the health of motion when passive motion to guarantee that the motion that the health can be steady avoids falling down, adjusts handle 31 height according to self height simultaneously. In the embodiment, the switch button 38 on the handle 31 is used for switching on and off the push-pull electromagnet 34 so as to adjust the height of the handle 31, so that the operation is very convenient; in the embodiment, the sliding rail is arranged in the fixed seat sleeve 32, and the meshing piece 35 and the push-pull type electromagnet 34 are arranged on the sliding part 33 of the sliding rail, so that the structure is compact, and the space is saved; meanwhile, the height of the handle 31 can be quickly adjusted according to the height of a user by switching on and off the push-pull type electromagnet 34, so that time and labor are saved, the adaptability is strong, and the service life is long; in the embodiment, the height of the slide rail is fixed by the engagement of the sawtooth part 322 and the engaging part 35, and the slide rail has a simple structure and high fixing reliability.

Further, the push-pull rod 341 of the push-pull electromagnet 34 is vertically arranged; the engaging piece 35 is provided with an inclined guide oblong hole 351, the sliding portion 33 is provided with a guide post 331 penetrating the guide oblong hole 351 so as to enable the push-pull rod 341 of the push-pull electromagnet 34 to move to drive the engaging piece 35 to move, and the guide post 331 is arranged in the guide oblong hole 351, so that the guide post 331 only enables the engaging piece 35 to move obliquely along the direction of the guide oblong hole 351. The push-pull rod 341 is vertically arranged, the push-pull rod 341 moves up and down in the vertical direction, when the push-pull rod 341 drives the engaging piece 35 to move, the engaging piece 35 obliquely moves to generate horizontal partial movement, the engaging piece 35 and the sawtooth part 322 can be separated or engaged, the slide rail can freely slide and stretch after separation, and the height of the slide rail is fixed after engagement.

Further, the push-pull rod 341 is located above the engaging member 35, the guide elongated hole 351 extends obliquely upward along a direction away from the serrated portion 322, so that the engaging member 35 moves obliquely upward when the push-pull rod 341 moves upward, horizontal component movement is generated to enable the engaging member 35 to move away from the serrated portion 322 and separate from the serrated portion 322, the slide rail can freely slide and stretch out and draw back after separation, after stretching out and drawing back to a proper position, the push-pull electromagnet 34 is powered off, the push-pull rod 341 moves downward, and the engaging member 35 is engaged with the serrated portion 322.

Furthermore, an outer cover 37 is sleeved outside the fixed seat cover 32, the outer cover 37 is fixedly connected with the handle 31, and all mechanisms are covered inside by the outer cover to play a role in protection and attractiveness.

The push-pull rod 341 is located below the engaging piece 35, the guide long circular hole 351 extends downwards along the direction away from the sawtooth portion 322 in an inclined mode, so that the engaging piece 35 moves downwards and generates horizontal sliding movement when the push-pull rod 341 moves downwards, the guide long circular hole is separated from the sawtooth portion 322, the separated slide rail can freely slide and stretch, after the slide rail stretches to a proper position, the push-pull electromagnet 34 is powered off, the push-pull rod 341 moves upwards, and the engaging piece 35 is meshed with the sawtooth portion 322.

The working process or working principle of the invention is as follows: when a user moves passively, the user holds the handle 31 with his hand, the push-pull electromagnet 34 is operated to be powered on through the switch button 38 on the handle 31, the push-pull rod 341 of the push-pull electromagnet 34 contracts upwards to move so as to compress the spring on the push-pull electromagnet 34 after being powered on, and simultaneously the push-pull rod 341 drives the engaging piece 35 to move, because the guide column 331 is in the guide long circular hole 351, the guide column 331 only enables the engaging piece 35 to move obliquely along the direction of the guide long circular hole 351, the push-pull rod 341 moves upwards so as to enable the engaging piece 35 to move obliquely upwards, the generated horizontal partial movement enables the engaging piece 35 to move away from the sawtooth part 322 to be separated from the sawtooth part 322, the sliding part 33 of the separated slide rail can freely slide and stretch, after the slide rail is pulled or pushed to stretch to a proper position through the handle 31, the switch button 38 is used to operate, the push-pull rod 341 moves downward to engage the engaging member 35 with the serration 322, and at this time, the sliding portion 33 of the slide rail cannot move up and down in a telescopic manner, thereby fixing the height of the slide rail.

Preferably, the multi-camera three-dimensional human body scanning device of the present embodiment further includes a three-dimensional human body scanning system, and the system includes:

the system comprises at least three depth cameras 13 which are vertically distributed, wherein the depth cameras 13 are directly fixed on a stand column, and the depth cameras 13 are used for collecting depth images of a detected human body in real time and transmitting the depth images to a host;

a host computer interactively connected to the depth camera 13 for receiving and processing the depth image to generate a 3D model of the human body; the host is placed in the inner cavity of the second cuboid 12;

the rotary table is used for the tested human body to stand and is driven by a motor; the depth camera 13 collects a depth image in the process that the rotary table rotates for a circle;

be equipped with weighing module on the revolving stage, this weighing module is used for measuring the weight information that is located the human body of quilt survey on the revolving stage, and weighing module's output is connected with the input of treater, and the treater is connected with the host computer interactive, and the treater still sends the weight information of weighing module feedback to the host computer, and after the host computer received the weight information, to the instruction of shooing of degree of depth camera 13 assignment, the treater setting is at the inner chamber of second cuboid 12.

It should be pointed out that the improved three-dimensional human body scanning system directly fixes a plurality of vertically distributed depth cameras 13 on the stand column, and after a user stands on the turntable, the depth cameras 13 can be started in the following two ways: 1. a starting button at the handle is pressed, the starting button sends a starting signal to the processor, the processor sends the starting signal to the host, the host controls the depth cameras 13 to take pictures, the processor controls the rotary table motor to work, and the rotary table rotates; 2. when a user stands on the rotary table, the weighing module embedded in the rotary table sends weight information to the processor, the processor receives the weight information and then sends a control signal to the host, the host controls the depth cameras 13 to take pictures, meanwhile, the processor controls the rotary table motor to work, and the rotary table rotates. Namely: in the actual control, it may be: the processor receives the weight information sent by the weighing module and then sends a control instruction to the motor driving module, and the motor driving module is used for controlling the working state of the motor; it can also be: a starting button is connected with the input end of the processor, the starting button sends a control instruction to the processor, and after the processor receives the control instruction, the processor sends the control instruction to the host and the motor driving module, so that the host sends a photographing instruction to the depth camera 13, and the motor driving module controls the motor to be in a working state; when the host computer is for handheld terminal, the user also can be through the measurement button on handheld terminal to three-dimensional human scanning system assigned weight, body fat measurement instruction and the instruction of shooing, handheld terminal receives the instruction back, control degree of depth camera 13 and color camera work, simultaneously, handheld terminal carries the instruction to the treater, treater control electrode piece, weight measurement module work.

The depth camera 13 of the present embodiment is described in detail below: the depth camera 13 brings advanced depth perception capabilities into prototyping. The depth camera 13 integrates: new intel real vision processor D4: processing a complex depth algorithm; a stereoscopic image sensor: capturing images and calculating differences between the images; an infrared signal transmitter: illuminating an object and collecting depth data; an RGB sensor: color data is collected.

The depth camera 13 is equipped with a new intel realistic vision processor and module to provide computer vision for the prototype with instantly available form factors.

The depth camera 13 of the present embodiment is preferably a depth camera 13D435, and the depth camera 13D435 with intel reality is equipped with a global image shutter and a wide field of view, and can effectively capture and stream depth data of a moving object, thereby providing highly accurate depth perception for a moving prototype.

Depth camera 13D435 has the following advantages:

1. a powerful visual processor that uses 28 nanometer (nm) process technology and supports up to 5 MIPI camera serial interface 2 channels to compute real-time depth images and speed up the output, generating a depth video stream of up to 90 frames per second (fps). This is 60fps higher than 30fps of the first generation stereoscopic depth camera 13.

2. A set of high resolution image sensors that provide up to 5 times the number of pixels in the depth data stream. This may result in a resolution of up to 1280x720, while the resolution of the first generation stereoscopic depth camera 13 is 480x 360.

3. The dedicated color image signal processor is used for image correction and color data scaling, thereby greatly improving the image quality. Advanced stereo depth algorithms and new designs to achieve more accurate depth perception and longer range. By calibration, the error rate of stereo depth perception is as low as 1%. In the most suitable environment, these cameras can capture data up to 10 meters away in both indoor and outdoor environments.

4. The new cross-platform open source intel real sense SDK2.0 is supported, including various operating systems (Windows10, Linux, or ubuntu 16.04), third party plug-ins and environments and programming languages.

It is important to explain that the host of this embodiment is also interactively connected to the color camera, the color camera can acquire color information of the human body to be detected in real time, and the host receives and processes the color information and embodies the color information in the human body 3D model.

The three-dimensional human body scanning system of the embodiment also has a function of measuring body fat, specifically, the electrode plates generate weak signals to measure the human body resistance, and the human body resistance is converted into body fat information in the processor. The output end of the electrode plate is connected with the input end of the processor, the electrode plate comprises a plurality of foot-stepping electrode plates arranged on the rotary table and a plurality of hand-holding electrode plates arranged on the handle, the bottom end of the handle is fixedly connected with the rotary table, and the handle is used for being held by a tested human body standing on the rotary table.

The depth cameras 13 of the present embodiment may be three, four or more, and the more the number of the depth cameras 13 is, the more accurate the human body 3D model generated by the host computer is. Considering the production cost, preferably three depth cameras 13 are arranged, the three depth cameras are arranged at the upper, middle and lower positions of the main control upright post, and the depth cameras vertically scan the human body; the dial portion is rotated under the control of the processor to achieve a 360 full scan of the human body.

It should be noted that the host computer of this embodiment issues a photographing command to the camera, and the depth camera 13 stops automatically after 1 picture is taken, and does not trigger a second photographing; be equipped with 0 position sensor on the revolving stage, the treater gives motor control module and issues the revolving stage instruction of rotating, and the revolving stage motor work, after the revolving stage has rotated the round, the revolving stage triggered 0 position sensor, and 0 position sensor sends information to the treater, and the treater control motor stop work.

The practical use of a three-dimensional body scanning device with a built-in weighing module is given below:

1. preparation and measurement: the tested person stands on the rotary table, presses the switch button 38 on the pull rod handrail, stretches the pull rod handrail to a proper state, the weighing module detects that the weight changes (from 0 to the weight of the tested person), the weighing module sends a message to the processor, the processor sends a message to the host, and the host plays notes to the tested person through the loudspeaker;

2. triggering measurement: the tested person stands on the rotary table and keeps still; the manual operation hand-held terminal triggers the measurement button (or the start button on the manual operation handle), and the three-dimensional human body scanning system starts to measure: the main machine issues an instruction for starting to measure the weight and the body fat through the processor, and after the weighing sensor and the electrode plate receive the instruction, the weighing sensor triggers the weight measurement and triggers the measurement of the body resistance of the left upper limb, the right upper limb, the trunk, the left lower limb and the right lower limb under the conditions of 1kHz, 5kHz, 50kHz, 250kHz and 500kHz and 1000 kHz; acquiring the weight and five-section human body impedance under six frequencies, and uploading 31 groups of data to a host; meanwhile, the turntable motor starts to work, the turntable rotates, the host synchronously opens 3 depth cameras 13 for data acquisition, and simultaneously opens the color cameras for data acquisition. After the depth camera 13 is started, transmitting a depth image to a host in real time; the host machine identifies each frame, synthesizes the models and outputs the final 3D model of the tested person; the color camera continuously collects the images of the face and other parts of the body of the tested person.

The position sensor 0 is positioned on the rotary table, the position sensor 0 can adopt a photoelectric sensor, a photoelectric encoder, a metal proximity switch and the like, the position sensor 0 sends the current motion condition and the rotation angle of the rotary table to the processor, the processor receives the position information of the rotary table and then processes the position information to control the motor driving module, the motor driving module drives the working state of the rotary table motor, the circuit diagram of the motor driving module is shown in figure 9, an input signal is introduced by a Port, a Port1 pin is a motor direction signal input end, a Port2 pin is a PWM signal input end, a Port3 pin is a ground wire, and the power supply is 12 VDC.

The processor of this embodiment employs an Atmega2560 processor or stm32 processor, and the weighing module employs a G-shaped or E-shaped stress piece. The weighing modules are arranged at one or more positions, preferably four or eight positions in the embodiment, the four weighing modules form a square, the four weighing modules are respectively arranged at four point positions, the weight of a user to be measured is evenly divided, and the accuracy of weight measurement data is improved. The eight weighing sensors are arranged to form an octagon, and the weight of a user to be measured can be detected from eight directions and balanced in multiple directions.

If the physical state of the user to be detected is uncomfortable or an emergency occurs, the emergency stop switch on the handle can be touched, the rotary table stops moving, and safety accidents are prevented.

In the embodiment, three depth cameras which are vertically distributed are arranged on the upright column, so that the depth image of a detected human body is acquired in real time, and specifically, the three depth cameras are arranged at the upper, middle and lower positions of the upright column to perform vertical scanning; the turntable sends a control instruction to the motor driving module through the processor so as to realize the rotation of the turntable, thereby achieving the purpose of 360-degree full scanning of a human body.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A three-dimensional human body scanning device with a built-in weighing module comprises a fixed upright post, a rotary table (4), a connecting plate (2) and a depth camera (13), wherein one end of the connecting plate (2) is connected with the fixed upright post, the other end of the connecting plate (2) is connected with the rotary table (4), and the depth camera (13) is arranged on the fixed upright post; the drive rotation assembly is arranged between the bottom plate (418) and the turntable;

the top end of the rotary table is provided with a mounting hole which is communicated with an opening at the bottom end of the rotary table, the inner cavity of the rotary table is provided with a fixing plate (45), a human body weighing platform (43) is embedded in the mounting hole, a plurality of weighing modules are arranged between the human body weighing platform (43) and the fixing plate (45), and the weighing modules are uniformly distributed along the axis of the human body weighing platform (43);

the weighing module comprises: lower casing, last casing, weighing sensor and the balanced subassembly that supplies weighing sensor to place, with detachable mode fixed connection after casing and last casing are buckled mutually down, go up the casing and fix in the cavity that the bottom of human weighing platform (43) is used for installing the weighing module, the casing is fixed on fixed plate (45) down, the bottom and the weighing sensor contact of balanced subassembly, the clearance has between the top of balanced subassembly and the last casing roof.

2. The three-dimensional human body scanning device of claim 1, wherein four corners of the inner cavity of the upper shell are provided with fixing columns for fixing the weighing sensors, and the columns extend from the top wall of the upper shell to the opening direction; a through hole for the columnar piece to pass through is formed in the center of the weighing sensor;

3. The three dimensional body scanning apparatus of claim 1 or 2, wherein said drive rotating assembly comprises: the gear transmission mechanism comprises an inner gear ring (403) arranged on the peripheral wall of the convex ring and a rectangular shaft speed reducing motor (404) embedded on a bottom plate (418), wherein a gear is arranged on an output shaft of the rectangular shaft speed reducing motor (404), and the gear is meshed with the inner gear ring (403);

the bottom surface of the convex ring is fixedly provided with a plurality of rolling supporting pieces (401), the rolling supporting pieces (401) are uniformly distributed along the axis of the convex ring, and the rolling pieces of the rolling supporting pieces (401) are in contact with the top surface of the bottom plate (418).

4. The three-dimensional human body scanning device according to claim 1 or 2, wherein the turntable further comprises a plurality of rolling support members (401), the plurality of rolling support members (401) are uniformly distributed along the axis of the convex ring, the rolling support members (401) are fixedly arranged on the bottom surface of the convex ring, and the rolling members of the rolling support members (401) are in contact with the top surface of the bottom plate (418).

5. The three-dimensional body scanning device according to claim 3, wherein said turntable (4) further comprises a rotating bearing disk (405), the rotating bearing disk (405) comprising: the novel roller bearing comprises an outer ring, an inner ring and a rolling body embedded between the outer ring and the inner ring, wherein the height of the inner ring is higher than that of the outer ring, the top surface of the inner ring is fixedly connected with the bottom surface of a fixing plate (45), the outer ring is fixedly arranged at the center of a bottom plate (418), and the rectangular shaft speed reduction motor (404) is positioned on any side of the outer ring.

6. The three-dimensional body scanning device according to claim 1, further comprising a tie bar handrail provided on a top surface of the turn table (4);

the pull rod handrail comprises a handle (31) and a fixed seat cover (32), an opening (321) is formed in one side wall of the fixed seat cover (32), and a sawtooth part (322) extending along the vertical direction is arranged on the side edge of the opening (321);

a sliding rail is arranged in the fixed seat sleeve (32), a sliding part (33) of the sliding rail is provided with a push-pull electromagnet (34), a push-pull rod (341) of the push-pull electromagnet (34) is fixedly provided with an occluding piece (35) meshed with the sawtooth part (322), and the push-pull electromagnet (34) is powered on and powered off to realize the occlusion and separation of the occluding piece (35) and the sawtooth part (322); the handle (31) is fixedly arranged at the top end of the sliding part (33).

7. The three-dimensional body scanning device according to claim 6, wherein the push-pull rod (341) of the push-pull electromagnet (34) is vertically arranged; the engaging piece (35) is provided with an inclined guide long circular hole (351), the sliding part (33) is provided with a guide column (331) penetrating through the guide long circular hole (351), so that the guide long circular hole (351) moves relative to the guide column (331) when the push-pull rod (341) of the push-pull electromagnet (34) moves, and the engaging and separating of the engaging piece (35) and the sawtooth part (322) are realized.

8. The three-dimensional human body scanning device according to claim 7, wherein the fixed part (36) of the slide rail is fixed on the inner wall of the fixed seat cover (32), and the sliding part (33) is connected with the fixed part (36) in a sliding way;

the fixed seat cover (32) is sleeved with an outer cover (37), and the outer cover (37) is fixedly connected with the handle (31).

9. The three-dimensional human body scanning device according to claim 1, wherein the number of the depth cameras (13) is multiple, the fixed column is formed by splicing a first long cuboid (11) and a second short and thick cuboid (12), the first cuboid (11) is provided with a plurality of vertically distributed grooves, and the camera body is fixed in the grooves; a threading hole is formed in the bottom wall of each groove, and a cable penetrates through the threading hole; the second cuboid (12) is of a hollow structure, and a host is arranged in the second cuboid (12).

10. The three-dimensional human body scanning device according to claim 9, wherein a processor and a driving module are further disposed in the second rectangular parallelepiped (12), a photoelectric sensor is embedded on the bottom plate (418), a transmission light path of the photoelectric sensor is perpendicular to an axis of the rotating assembly, and a light barrier is disposed on a bottom wall of the convex ring and can periodically block the transmission light path of the photoelectric sensor;

the depth camera (13) is interactively connected with a host, the host is interactively connected with a processor, the output end of the weighing module is connected with the input end of the processor, the output end of the photoelectric sensor is connected with the input end of the processor, and the output end of the processor is electrically connected with a rectangular-axis speed reduction motor (404) through a driving module;

the weighing module is used for measuring weight information of a measured human body on the rotary table (4), and the depth cameras (13) are used for acquiring depth images of the measured human body in real time and transmitting the depth images to the host; the host is used for receiving and processing the depth image to generate a human body 3D model; the driving module is electrically connected with the rectangular-axis speed reducing motor (404), the rectangular-axis speed reducing motor (404) drives the rotary table (4) to rotate, and the depth image is collected by the depth camera (13) in the process that the rotary table (4) rotates for a circle.