Human model system and evaluation method for evaluating bra support performance

Abstract

The present application relates to a human body model system and an evaluation method for evaluating the support performance of a bra. The support performance of a bra is evaluated by obtaining the torso motion trajectory and breast motion trajectory of a torso model in the human body model system, calculating the breast motion deviation rate, and calculating the difference in the breast motion deviation rate of the torso model under wearing and non-wearing conditions.

Description

Technical Field

[0001] The invention belongs to the field of textile performance testing, and in particular relates to a human body model system and an evaluation method for evaluating the support performance of a bra. Background Art

[0002] Bras worn by women are among the most complex engineered apparel products, with intricate construction details and unique fit requirements to enhance body shape. Since the structure of the breasts provides little anatomical support, bras are designed to protect the breasts and provide external support to hold them in place. During the design and development of bras, biomechanical parameters of breast motion and movement, as well as fit and comfort are particularly important, so a scientifically reliable method to evaluate the biomechanical interaction between the breast and bra during different activities and the wearer's needs is urgently needed as an effective solution to promote the continued design and development of quality bras in the intimate apparel industry. Summary of the invention

[0003] Based on this, the present invention aims to propose a human body model system and an evaluation method for evaluating the support performance of a bra, so as to overcome the defects of the prior art.

[0004] In a first aspect, the present invention provides a method for evaluating bra support performance, comprising:

[0005] actuating the motion support to cause linear and / or rotational movement of the torso model, the torso model being provided with marker points;

[0006] Obtaining a trunk motion trajectory and a breast motion trajectory of the trunk model to calculate a breast motion deviation rate;

[0007] The difference in breast movement deviation rate between wearing and not wearing was calculated to evaluate the bra support performance.

[0008] Furthermore, the calculation of the breast motion deviation rate includes:

[0009] The torso movement is offset in the breast movement trajectory according to the torso movement trajectory to obtain the breast movement offset trajectory;

[0010] During the recorded gait cycle, the average breast motion offset was calculated based on the breast motion offset trajectory, and the average trunk displacement was calculated based on the trunk motion trajectory;

[0011] The breast motion excursion ratio was calculated based on the average breast motion excursion and the average trunk displacement.

[0012] Furthermore, the calculation of the breast motion deviation trajectory includes:

[0013] A local three-dimensional coordinate system is established with the marking point at the clavicle of the torso model as the origin and the vector direction formed by the left rib marking point and the right rib marking point as the x-axis;

[0014] Subtract the trunk motion trajectory and breast motion trajectory obtained in the natural coordinate system point by point to obtain the coordinate difference;

[0015] The dot product operation is performed on the coordinate difference calculated in the natural coordinate system and the unit vector in the local three-dimensional coordinate system to obtain the breast motion deviation trajectory.

[0016] Furthermore, the breast motion deviation rate difference is calculated as follows:

[0017] Breast movement deviation rate difference = (breast movement deviation rate without wearing - breast movement deviation rate with wearing) / breast movement deviation rate without wearing * 100%;

[0018] The greater the difference, the better the bra's support.

[0019] Further, the actuating motion bracket comprises:

[0020] Obtain real human motion parameters;

[0021] Calculate actuation parameters based on real human motion parameters;

[0022] The motion support is actuated according to the actuation parameters.

[0023] Furthermore, the real human motion parameter includes at least one of a running gait cycle, an average vertical displacement, and an average maximum rotation angle.

[0024] Further, the actuation parameters include linear motion actuation parameters and rotational motion actuation parameters.

[0025] Furthermore, the linear motion actuation parameters include vertical displacement and vertical motion speed.

[0026] Further, the rotational motion actuation parameters include a rotation angle and a steering speed.

[0027] Furthermore, the calculation of the vertical displacement includes:

[0028] The average vertical displacement is taken as the upward displacement and the downward displacement when the moving bracket is actuated.

[0029] Furthermore, the vertical movement speed is calculated as follows:

[0030]

[0031] Furthermore, the calculation of the rotation angle includes:

[0032] The average maximum rotation angle is taken as the left-hand rotation angle and the right-hand rotation angle when the moving bracket is actuated.

[0033] Furthermore, the steering speed is calculated as follows:

[0034]

[0035] Furthermore, obtaining the average vertical displacement includes:

[0036] The motion curve of the human clavicle position in the z-axis direction in the natural coordinate system was recorded, and the average value of several adjacent peak-to-valley displacement differences within an evaluation cycle was calculated, and the average value was recorded as the average vertical displacement.

[0037] In a second aspect, the present invention provides a human model system for evaluating bra support performance, comprising:

[0038] A torso model, wherein the torso model is provided with marker points;

[0039] a motion support, to which the torso model is fixed;

[0040] The motion mount is actuated to provide linear and / or rotational movement of the torso model;

[0041] A three-dimensional motion capture unit is used to capture the motion trajectory data of the marker points and transmit the data to the analysis system to evaluate the bra support performance;

[0042] The system is used to implement the above-mentioned bra performance evaluation method.

[0043] Furthermore, the surface of the torso model is covered with a replaceable bionic skin layer, and a hollow groove for placing a breast substitute is formed on the skin layer to simulate the structure of a human breast.

[0044] Further, the bionic skin layer includes silicone material.

[0045] Further, the breast substitute comprises a silicone material.

[0046] Further, the torso model includes fiberglass material.

[0047] Furthermore, the motion support includes a metal frame and an actuating assembly, wherein the actuating assembly is fixed in the center of the metal frame structure, and the torso model is fixed to the actuating assembly.

[0048] Further, the actuation assembly includes a first motor, a second motor, and a retractable rod;

[0049] The actuation assembly receives the actuation parameters to cause linear and / or rotational movement of the torso model;

[0050] The first motor controls the telescopic rod to extend and retract in the vertical direction to make the trunk model move linearly, and the second motor controls the rotational movement of the trunk model.

[0051] Further, the actuation parameters include linear motion actuation parameters and rotational motion actuation parameters.

[0052] Furthermore, the first motor is a servo motor.

[0053] Furthermore, the second motor is a stepping motor.

[0054] Further, the actuation assembly is communicatively coupled to an external actuation control system.

[0055] Furthermore, the base of the actuating assembly is provided with a communication line, and the actuating assembly is electrically connected to the actuating control system via the communication line.

[0056] Further, the actuation parameters are calculated based on real human body motion parameters.

[0057] Furthermore, the linear motion actuation parameters include vertical displacement and vertical motion speed.

[0058] Furthermore, the rotational motion actuation parameters include a rotation angle and a rotation speed.

[0059] In a third aspect, the present invention provides an evaluation device, which is communicatively coupled to the human body model system provided in the second aspect, and includes a memory and a processor storing computer executable instructions. When the computer executable instructions are executed by the processor, the device executes the bra support performance evaluation method provided in the first aspect.

[0060] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer-executable program, which, when executed, can implement the bra support performance evaluation method provided in the first aspect.

[0061] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0062] The bra support performance evaluation method and evaluation system provided by the present invention utilize a human trunk model to simulate the running gait of a real human body, and actuate a motion bracket to enable the trunk model to perform linear and / or rotational motion. The design of the trunk model is more in line with the body characteristics of Asian women, and the breast structure and skin layer can be replaced to match different sizes. The method of obtaining performance evaluation parameters by simulating motion with a model saves the manpower cost of a large number of experimenters required for the participation of conventional experimental methods. The mechanical design of the trunk model and the motion bracket can flexibly change the speed / motion mode according to the changes in the human trunk posture and activity level. The evaluation method obtains the trunk motion trajectory and the breast motion trajectory to calculate the breast motion offset, and compares the degree of change of the breast motion offset under the wearing and non-wearing conditions, which is used to measure the support performance of the bra, providing a more scientific and objective support performance evaluation method for bra design. Compared with other static model mimicry methods, the experimental process of the method proposed by the present invention is dynamic, and can more accurately simulate the gait presented by human motion to obtain motion parameters, and the evaluation effect is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0064] Figure 1 A side view of an exemplary torso model of a human body model system for evaluating bra support performance according to various embodiments of the present invention;

[0065] Figure 2 A side view of a torso model with a skin layer as an example of a human model system for bra support performance evaluation according to various embodiments of the present invention;

[0066] Figure 3 A schematic diagram of replacing the skin layer of a torso model in an embodiment of the present invention;

[0067] Figure 4 It is a schematic diagram of the structure of a torso model fixed to a motion support according to an embodiment of the present invention;

[0068] Figure 5 It is a first partial schematic diagram of the structure of the motion component according to an embodiment of the present invention;

[0069] Figure 6 It is a second partial schematic diagram of the structure of the motion component according to an embodiment of the present invention;

[0070] Figure 7 It is a schematic diagram of the simulated motion of the torso model according to the embodiment of the present invention when the motion component is actuated;

[0071] Figure 8 A schematic diagram of a control structure for actuating a motion support according to an embodiment of the present invention;

[0072] Fig. 9 A schematic diagram of attaching a marker to a torso model according to an embodiment of the present invention;

[0073] Fig.10 A schematic diagram of capturing motion data of a torso model using a three-dimensional motion capture system according to an embodiment of the present invention;

[0074] Fig.11 Schematic diagram of a human body model system for bra support performance evaluation according to various embodiments of the present invention;

[0075] Fig.12 A schematic diagram of motion trajectory data acquired by a three-dimensional motion capture system according to various embodiments of the present invention;

[0076] Fig.13 Schematic diagram of the movement of the clavicle marker along the z-axis in a running gait cycle according to various embodiments of the present invention;

[0077] Fig.14 Schematic diagram of the motion displacement curve of the torso model in the z-axis direction according to various embodiments of the present invention;

[0078] Fig.15 Schematic diagram of the movement of the clavicle marker along the x-axis in a running gait cycle according to various embodiments of the present invention;

[0079] Fig.16 Schematic diagram of the motion displacement curve of the torso model in the x-axis direction according to various embodiments of the present invention;

[0080] Fig.17 Schematic diagram of the shoulder steering angle of each embodiment of the present invention;

[0081] Fig.18 Schematic diagram of the curve of the change of the steering angle during the rotational movement of the torso model in each embodiment of the present invention;

[0082] Fig.19 A schematic diagram of actuating a motion support to make a torso model move vertically according to an embodiment of the present invention;

[0083] Fig. 20 A schematic diagram of actuating a motion bracket to rotate a torso model according to an embodiment of the present invention;

[0084] Fig.21 A schematic diagram of a motion trajectory data of a torso model simulating human motion obtained by a three-dimensional motion capture system according to an embodiment of the present invention;

[0085] Fig. 22 A schematic diagram of establishing a local coordinate system according to an embodiment of the present invention;

[0086] FIG23( a ) is a schematic diagram of a breast motion trajectory according to an embodiment of the present invention;

[0087] FIG23( b ) is a schematic diagram of a breast movement deviation trajectory according to an embodiment of the present invention;

[0088] Fig.24 A flowchart of an exemplary method for evaluating bra support performance described for an embodiment of the present invention;

[0089] Fig.25 A block diagram of an actuation control system environment used in various examples described for embodiments of the present invention. DETAILED DESCRIPTION

[0090] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0091] From a biomechanical perspective, breast motion is related to trunk motion during human exercise. The breast and trunk move simultaneously or with only a small delay at different movement speeds or activity levels. Net forces are generated by the vibration effect of the chest and trunk motion. However, the gravitational forces acting on the breast and trunk are limited by the breast anatomy, and women with larger breasts require more breast support. The momentum and displacement of the breasts caused by exercise are affected by the level of physical activity and breast mass. If the bra does not provide adequate mechanical support for the breasts, excessive body movement can cause great pressure on the breasts, resulting in excessive stretching of the breast tissue and related breast pain, increased breast sagging, and even permanent deformation of the breast structure. In addition, increased breast motion can also cause great discomfort and embarrassment because the breasts are not properly positioned and cannot move freely with the chest. It is foreseeable that appropriate bra design and garment construction as well as good manufacturing process and fabric elasticity are closely related to controlling breast motion and good fit and comfort. However, to date, little scientific work has been able to provide accurate and objective evaluation techniques to assess the impact of various bra parameters and material selection on bra performance.

[0092] Motion experiments have been commonly used to measure three-dimensional breast displacement, which requires experimenters to perform wearable experiments. 3D motion capture systems can be used to quantify the magnitude, velocity, or acceleration of breast movement, thereby providing important biomechanical information for bra design. In breast motion experiments, a non-wearing experimental group is often used as a control group for comparison to evaluate the effectiveness of bras in providing breast support. Since the experimenters are required to take off their outer clothes, they may feel embarrassed, and the sample size is usually small, which is inevitable. However, it is difficult to recruit a sufficient number of subjects, and the participation of a large number of subjects will also lead to huge differences in breast characteristics. Similarly, when subjects are tested under non-wearing conditions, insufficient support for the breasts may cause breast pain and / or injury during the motion experiment. Therefore, sometimes subjects are restricted to walking slowly when performing non-wearing conditions. Other limitations to subject recruitment include health status, differences in the natural structure of the breast, and differences in breast volume and breast shape between women of the same body type; factors such as weight, fat percentage, and gait differences are also key factors affecting motion experiments, and it becomes more difficult to maintain consistent experimental conditions, which will affect the evaluation results and the repeatability of the experiment.

[0093] Additionally, the study found that the level of support provided to the breasts affects a person's stride length, distance covered per minute, and range of motion of the thigh during the gait cycle during running. When the support provided to the breasts increases, the amplitude of breast movement decreases. Approximately 50% of the overall breast displacement comes from the vertical component, while the mediolateral and anterior-posterior accelerations together account for 41% of breast acceleration. Therefore, knowledge of the direction and magnitude of peak breast displacement, velocity, and acceleration can improve the quality of bra design by determining multi-plane breast support requirements during physical activity.

[0094] Human models have been developed and used as objective tools to analyze human physiological responses, however, there are few studies using soft breast models because the soft tissue and geometry of the breast are very complex and traditional human models are usually made of metal with rigid surfaces.

[0095] Aspects of the present invention relate to a human model system and evaluation method for evaluating the support performance of a bra, providing a scientific and objective evaluation method for bra designers, which can be used to evaluate the support performance of a bra for a female wearer's breasts in motion. The human model system can simulate real human motion, and motion parameters can be measured under dynamic conditions for performance evaluation.

[0096] As exemplified in the present invention, the human model system provided by the present invention includes a trunk model with a breast structure, a motion support and a three-dimensional motion capture unit. Marking points are set on the trunk model, and markers can be set at the positions of the marking points in the form of being attached to the surface of the trunk model or worn and / or attached to the test clothing (e.g., bra), and the markers can be recognized by the motion capture system. When a bionic structure such as a skin layer is set on the surface of the trunk model, the marker can also be attached or integrated on the bionic structure such as the skin layer, and when the bionic structure needs to be replaced, the sensor will also be transferred to the bionic structure for replacement accordingly. Specifically, the sensor can be set in the nipple area of ​​the breast structure, and also includes the left and right clavicles, and the central area formed by the clavicle on the chest. In order to more completely obtain the motion trajectory of the trunk model, the sensor can also be set at the left and right ribs, the left and right shoulders, etc. When the human model is actuated to simulate human motion, the trajectory depicted by some markers is captured, and of course, the trajectory depicted by all markers can also be captured. The markers set on the torso model can accurately depict the movement trajectory of the torso and breast structures in motion when the model simulates human body movement.

[0097] When the experiment is conducted under wearing conditions, a garment such as a bra is worn on the torso model, and the torso model is fixed to a motion bracket, which is actuated by an actuation control system to make the torso model perform linear and / or rotational motion, which can be understood as simulating human body motion such as running, jumping, etc. When the torso model simulates human body motion with the actuation of the motion bracket, the three-dimensional motion capture system captures the torso motion trajectory and breast motion trajectory of the torso model through markers. In addition, in situations not mentioned in the present invention but conceivable, it is permitted to use additional sensors to improve the accuracy of motion capture.

[0098] The motion trajectory data captured by the marker can be used to evaluate the support performance of the bra on the breast in motion. In addition to being used in experiments under wearing conditions, the human model system of the present invention can also be used in experiments under non-wearing conditions (for example: the torso model is not wearing clothing such as a bra), so as to compare with the motion trajectory data captured under wearing conditions to determine the support performance of the clothing. In these two experimental conditions, similar or even the same actuation parameters can be used to actuate the human model system, such as the same movement in the same specified direction, the same movement degree / amplitude in the same specified direction, the same movement speed in the same specified direction, the same movement frequency, the same experimental cycle, etc.

[0099] The human body model system provided by the present invention realizes the measurability of performance evaluation experimental data and the repeatability of the experiment, and more scientifically and objectively evaluates the supporting performance of the bra for the breasts in a moving state.

[0100] In terms of the torso model, the material used to make the model can simulate as much as possible the changes in breast displacement, movement trajectory, movement amplitude, etc. that occur during real human movements such as running and jumping. Specifically, the body of the torso model can be made of rigid materials such as fiberglass, polyurethane, HIPS, etc. to simulate the hard bone structure of the human body and resist the impact caused by actuation, so as not to generate redundant movement data to interfere with the analysis of experimental data.

[0101] In terms of breast structure, the materials used simulate the texture and physical properties of human breasts and skin as much as possible. In order to improve the adaptability of the model, the materials of the breast structure can be designed to be replaceable so that different bra sizes can be evaluated. For example, a groove for filling breast filler material is formed on the bionic skin layer, and the size and shape of the groove restore the physiological structure of the human breast as much as possible, so that the movement data of the breast moving with the body under the human body movement state can be reproduced when the breast filler is filled. In view of the fact that the present invention is mainly for Asian female wearers, the size and shape of the torso model and the bionic skin layer are designed to conform to the Asian bra size system.

[0102] The terms used in this document to describe positional relationships, such as "front", "back", "top", "bottom", "above", "below", "over", "below", etc., are relative to the torso model in an upright position (for example, the chest area including the neck, clavicle, etc. of the torso model is positioned above the waist area of ​​the torso model) and the breast structure is located on the front of the torso model. When conducting a wearing experiment, these terms also indicate that the front part of a garment such as a bra covers the front of the torso model, and the back part of the garment covers the back of the torso model.

[0103] The "breast structure" and "nipple area" mentioned in the present invention refer to the typical female physiological anatomical structure. Usually, the breasts are symmetrically located on the front of the wearer's upper torso, and the nipple area is located at the apex of the breast morphological structure.

[0104] like Figure 1 The first example torso model 100 shown in the figure includes a breast structure 110 and a torso region 120. The front of the torso region 120 also includes anatomical features such as the clavicle and ribs (not shown in the figure). Not shown in the figure but conceivable by those skilled in the art is that the breast structure 110 follows the typical female physiological anatomical features, and has a first breast region and a second breast region that are bilaterally symmetrical and located in the upper half of the torso region 120. These anatomical features can be used to correctly position clothing such as a bra on the torso model 100. The torso model 100 is fixed on a motion bracket 200, which is communicatively coupled to an external actuation control system, and can of course also be used as shown in the figure. Figure 1The illustrated pass line 300 is electrically connected to an actuation control system so that the motion bracket 200 receives an actuation signal and is actuated.

[0105] like Figure 2 In another example shown, the surface of the torso model 100 is covered with a bionic structure 130 such as a skin layer, and a hollow groove for filling a breast filler is formed on the skin layer 130, that is, the breast structure 110 is embodied by the skin layer 130. The hollow groove is generally symmetrically arranged on the front side of the skin layer 130, such as the physiological structure of the breast. The front side here means that when the skin layer is covered on the torso model, the breast structure is located on the front side of the torso model 100, and the size and shape of the hollow groove after being filled form the breast structure 110. The skin layer 130 together with the breast filler can be replaced to match different bra sizes for evaluation. For example, the support performance of a bra with a size of 36C to 36B can be evaluated by replacing the bionic structure 130. Figure 3 An example of replacing the skin layer 130 is shown, in which the empty groove 131 formed by the skin layer 130 is filled with a breast filler material 132 for simulating the texture and physical properties of human breasts and skin, and the volume filled by the filler can present breast structures of different sizes.

[0106] In some embodiments, the material used to make the torso model 100 is formed of glass fiber, which has good hardness and impact resistance, and the skin layer 130 and the breast filler 132 are formed of silicone material. Specifically, the example silicone material used to form the skin layer 130 may include 00-30 of Ecoflex, and the example silicone material used to form the breast filler 132 may include Gel 2 and 00-10 of Ecoflex, and the ratio of the two to make the breast filler can be exemplified as 1:0.5. The ratio of the breast filler silicone material can be modified during the manufacturing process with reference to the Young's modulus and hardness requirements. It is worth mentioning that the movement and deformation of the human breast will change with changes in breast size, age, running speed, etc.

[0107] Figure 4Some examples of the trunk model 100 being fixed to the motion bracket 200 are shown. The motion bracket 200 includes a metal frame 210 that provides support and an actuating assembly 220 that receives an actuating parameter and is actuated. In some examples, the actuating assembly 220 includes a first motor 221 (e.g., a motor that controls linear motion) that controls linear motion (e.g., moves the trunk model up and down in an upright direction) and rotational motion (e.g., rotates the trunk model around the actuating assembly in a horizontal direction), a second motor 222 (e.g., a motor that controls rotational motion), and a retractable rod 223 that guides the trunk model 100 to move up and down. The actuating assembly 220 is fixed in the center of the metal frame 210 structure, and the trunk model 100 is fixed to the actuating assembly 220. Specifically, the metal frame 210 is made of metal aluminum, and other types of metals can also be used. The present invention does not limit the material of the metal frame.

[0108] Figure 5 and Figure 6 A partial schematic diagram of the actuation assembly 220 in some examples is shown. A first motor and a second motor are arranged on the telescopic rod 223 structure along the upright direction of the torso model. Specifically, the first motor 221 uses a servo motor and the second motor 222 uses a stepping motor. The first motor 221 is fixed on the base 224 of the actuation assembly, and the base 224 is provided with a cable 300 so that the first motor 221 is connected to the actuation control system. The upper part of the first motor 221 is connected to the second motor 222 for controlling the rotation of the torso model 100, and is connected to the actuation control system through a cable arranged on the second motor 222. Specifically, the telescopic rod 223 includes a main rod 2231 and guide rods 2232 symmetrically arranged on both sides of the main rod 2231. When the main rod 2231 is actuated to move up and down, the guide rods 2232 can ensure that the main rod 2231 moves smoothly without shaking or rotating, so as to avoid the linear movement in the up and down directions from introducing erroneous trajectory data. In some examples, the connection between the first motor and the second motor further includes a support member 224 to provide structural stability when the actuating assembly is actuated. The connection between the torso model 100 and the actuating assembly further includes a support member 225 to provide structural stability when the torso model 100 is fixed to the motion bracket 200.

[0109] like Figure 7 In the illustrated case, the first motor 221 triggers the retractable rod 223 to cause the torso model 100 to move up and down, and the second motor 222 triggers the torso model 100 to rotate in the horizontal direction to simulate human movements such as running and jumping. The rod 223 will move up and down a specific distance at a given speed to control the vertical movement of the torso model 100, and the second motor 222 will repeatedly rotate clockwise and / or counterclockwise at a given angle to simulate the shoulder rotation of a person during exercise. The two motors can run simultaneously according to a predetermined program.

[0110] The actuation parameters for actuating the motion bracket 200 to make the trunk model 100 simulate human motion are based on real human motion data collected in running experiments (eg, running cadence, shoulder rotation angle, running gait cycle, human trunk vertical displacement, etc.).

[0111] like Figure 8 In some of the illustrated embodiments, the process of actuating the motion support 200 can be described as follows: the vertical and rotational movements of the torso model 100 are controlled by a 2-axis motor controller (e.g., the illustrated 2-Axis Motor Controller), which is a programmable device that can control the movement of the motor in a predetermined manner. The motor can be started and stopped manually or automatically, and the motor shaft is rotated forward and / or reversed given the rotation speed (rpm) and number of revolutions (rev) of the motor, so that the first motor (e.g., the illustrated Servo Motor) triggers the up and down movement of the actuating assembly, and the second motor (e.g., the illustrated Step Motor) triggers the actuating assembly to rotate clockwise and / or counterclockwise in the horizontal direction. The pulse signal is sent as an input signal by the 2-axis motor controller to the motor driver (e.g., the illustrated Step Motor Driver and the Servo Motor Driver), which will be processed by the motor driver as a control signal and sent to the motor to perform a specific movement.

[0112] like Fig. 9 and Fig.10 In some of the embodiments shown, the marker 400 is attached to the torso model 100 so that the motion trajectory of the torso model 100 can be captured by the three-dimensional motion capture system. Fig. 9 As shown in the positioning, for example, the marker 400 is positioned at the center of the left and right sternums of the torso model 100, the nipple area of ​​the breast structure, and the left and right ribs. In order to more accurately capture the motion data of shoulder rotation, the marker 400 can also be attached to the left and right shoulders. The remaining possible attachment positions that are not shown in the figures belong to the scope of the present invention. In some specific instances, based on the balance between simplicity (simpler setup, fewer cameras) and accuracy (higher accuracy, more cameras), the three-dimensional motion capture system uses a configuration of three cameras, which can effectively and accurately track 3D torso movement and breast movement in the vertical, mediolateral, and anterior-posterior directions. Specifically, it can be as follows Fig.10The three-dimensional motion capture system 500 with three cameras is configured for the example scenario, and is set at 1 meter away from the torso model, and the distance between the cameras is 0.5 meters. When entering the simulated motion state, the marker 400 moves with the torso model 100. The three-dimensional motion capture system 500 tracks the coordinate changes of the marker in real time. The captured motion trajectory data is sent to the analysis system for quantitative analysis, and the analysis results are used to evaluate the support performance of the bra on the breast structure. Considering the changes in bra styles and features, the attachment position of the marker can be adjusted.

[0113] Fig.11 The human body model system 600 provided by the present invention is shown, and the system includes a torso model 100, a motion support 200, and a three-dimensional motion capture unit 500. The system 600 can be communicatively coupled or electrically connected to an external actuation control system 700 and / or an analysis system 800. The actuation control system 700 is used to output an actuation signal to actuate the human body model system, and the analysis system 800 is used to analyze the motion data captured by the three-dimensional motion capture unit 500 to evaluate the support performance of the bra. In some embodiments, the actuation control system 700 and the analysis system 800 can be integrated and integrated into devices such as "workstations", "servers", "computers", "handheld devices", etc.

[0114] Next, the bra support performance evaluation method proposed by the present invention will be described.

[0115] The actuation parameters for simulating human motion performed on the human model system proposed in the present invention are derived from real human motion experiments. When conducting real human motion tests, we also attach markers to the positions on the subject's body corresponding to the positioning of the markers of the human model system, and use a motion capture system to capture the subject's real motion data in the motion experiment. These motion data typically include running gait cycles, vertical displacement, shoulder rotation angles, trunk swing amplitudes, etc. As the present invention is concerned, in terms of examples, the initial motion data obtained include trunk motion trajectories and breast motion trajectories. The breast motion trajectories mentioned here include the motion trajectories of the first breast area and the second breast area. The acquisition of these trajectories will be completed by moving the markers in the center of the left and right clavicles and the nipple area. Fig.12 As shown, the three-dimensional motion capture system will capture three motion trajectory data, which correspond to the trunk motion trajectory, the first breast area motion trajectory, and the second breast area motion trajectory from top to bottom and from left to right respectively.

[0116] The duration of a single experiment in the example is 1 minute. A running gait cycle is usually less than 1 second. Therefore, the experimenter often performs multiple running gait cycles in 1 minute, which will be reflected in the displacement curve as a continuous curve with multiple alternating peaks and valleys.

[0117] In the example, the real human motion parameters are calculated through the motion trajectory data, including the average running gait cycle, the average vertical displacement and the average maximum rotation angle. These real human motion parameters will be used to calculate the actuation parameters of the actuating motion bracket, which can also be understood as the control parameters of the motor.

[0118] When the torso model is placed in a natural coordinate system, the torso model will move up and down in the z-axis direction, and when it rotates horizontally, a displacement change will occur on the x-axis. The angle between the shoulder and the x-axis reflects the change in the shoulder rotation angle during the movement.

[0119] (1) Average running gait cycle

[0120] The term "average running gait cycle" as used herein refers to the average length of time required to complete a running gait.

[0121] For linear motion (e.g., movement in the z-axis direction), Fig.13 and Fig.14 In the situation shown, with the torso facing right as the starting point of the gait, a complete running gait includes the process of the torso turning from right to left and from left to right, which is due to the swinging and touching of the feet, which is reflected in the displacement curve of the z-axis as a gait cycle including two peaks and two valleys. Of course, if the torso is facing left as the starting point of the gait, a complete running gait includes the process of the torso turning from left to right and from right to left, and the recorded z-axis displacement curve is also reflected as a gait cycle including two peaks and two valleys. In the example, the movement displacement of the torso in the z-axis direction is recorded by the marking points at the center of the left and right clavicles.

[0122] For rotational motion (e.g., clockwise and / or counterclockwise rotation in the horizontal direction), Fig.15 and Fig.16 In the situation shown, with the trunk facing right as the starting point of the gait, a complete running gait includes the process of the trunk turning from right to left and from left to right, which is reflected in the x-axis displacement curve as a gait cycle including two peaks and one valley, the peak value represents the maximum displacement on the x-axis when facing right, and the valley value represents the maximum displacement on the x-axis when facing left. Similarly, if the trunk faces left as the starting point of the gait, a complete running gait includes the process of the trunk turning from left to right and from right to left, and the recorded x-axis displacement curve is reflected as a gait cycle including one peak and two valleys. In the example, the movement displacement of the trunk in the x-axis direction is recorded by the marking points at the center of the left and right clavicles.

[0123] For the z-axis displacement curve and the x-axis displacement curve obtained simultaneously in the same time interval, the running gait cycles they represent are of equal duration. The calculation of the average running gait cycle is to calculate the average value of multiple gait cycle time periods defined by peak and valley values ​​in the displacement curve.

[0124] (2) Average vertical displacement

[0125] The term "average vertical displacement" as used herein refers to the displacement of the trunk in the vertical direction from the lowest or highest point to the highest or lowest point. In the exemplary embodiment, the displacement of the trunk in the z-axis direction is recorded by the marking points at the center of the left and right clavicles. Fig.14 As shown, in the z-axis displacement curve, the average value of the difference between adjacent peak-to-valley values ​​is calculated and recorded as the average vertical displacement.

[0126] (3) Average maximum rotation angle

[0127] The term "average maximum rotation angle" as used herein refers to the average maximum angle formed by the shoulder vector and the x-axis. Fig.17 and Fig.18 As shown, in the example, the change in the turning angle of the torso in motion is recorded by the marking points at the left and right shoulders, and the marking points at the left and right shoulders form a vector. The change curve of the angle θ between the vector and the x-axis is recorded, and the average value of the maximum value of the curve is calculated and recorded as the average maximum turning angle.

[0128] In addition to the motion parameters mentioned above, the present invention does not mention but it is conceivable that other measurable motion parameters can be obtained by calculating and processing the motion trajectory data, such as obtaining the spatial coordinates of different markers on different coordinate axes, displacement curves, etc. by processing the motion trajectory data through a computer system.

[0129] The process of converting motion parameters into actuation parameters is described below.

[0130] In the example, the above average running gait cycle, average vertical displacement and average maximum rotation angle can be converted into control parameters for the motor as shown in the example, and can also be understood as output parameters output by the motor controller for controlling the movement of the motor.

[0131] In the example, for the first motor (e.g., servo motor) that triggers linear motion, its control of the motion bracket includes up and down movement, which is achieved by rotating the internal shaft of the motor to actuate the motion component in the vertical direction. Therefore, as shown in the example, the actuation parameters that need to be converted for the first motor include vertical displacement, vertical motion speed, and the relationship between the motor steering and the vertical motion direction of the motion component. The ground on which the human model system is placed is the zero displacement line, and the average vertical displacement is the upward displacement and downward displacement when the motion bracket is actuated. For example, when the average vertical displacement is 90mm, the first motor will be configured to control the motion component to move up 90mm first, then move down 90mm, and so on to make the motion component reciprocate in the vertical direction. As in the example, in the z-axis displacement curve representing the average vertical displacement, a running gait cycle includes two peaks and two valleys. It can be determined that between adjacent peaks and valleys, the movement from the peak to the valley or from the valley to the peak includes 1 / 4 of the gait cycle, and the vertical motion speed of the motor-actuated motion component can be calculated as follows:

[0132]

[0133] As shown in the example here, if a running gait cycle is 0.8 seconds and the average vertical displacement is 90 mm, the vertical motion speed of the motion component can be calculated as

[0134] The relationship between the motor direction and the vertical movement direction of the moving component, in an example, can be that when the motor runs clockwise, the moving component moves upward, and when it runs counterclockwise, the moving component moves downward. This is just an example, and other steering relationships can be used according to various aspects of the present invention.

[0135] In one example, for a second motor (e.g., a stepper motor) that triggers a rotational motion, the actuation of the motion component to rotate in the horizontal direction is achieved by rotating the internal shaft of the motor. Therefore, as shown in the example, the actuation parameters that need to be converted for the second motor include the rotation angle, the steering speed of the motion component, and the relationship between the motor steering and the rotational motion direction of the motion component. Taking the initial position as the starting point, the average maximum rotation angle is used to reflect the left rotation angle and the right rotation angle of the motion component. For example, when the average maximum rotation angle is 20°, the position of the front of the torso model (the motion component does not rotate at any angle) is recorded as 0°, and the second motor will be configured to control the motion component to rotate clockwise by 20° first, then counterclockwise by 40°, and so on, so that the motion component rotates back and forth in the horizontal direction. This is just an example given, and it is conceivable that the second motor can also be configured to control the motion component to rotate counterclockwise first and then clockwise. As in the example, assuming that clockwise turning is to the left, counterclockwise turning is to the right, and the motion component turns from the leftmost to the rightmost (or, from the rightmost to the leftmost) including 1 / 2 gait cycle, the turning speed of the motor-actuated motion component can be calculated as follows:

[0136]

[0137] As shown in the example here, if a running gait cycle is 0.8 seconds and the average maximum turning angle is 20°, the turning speed of the motion component is calculated as

[0138] The relationship between the motor direction and the rotational motion direction of the motion component, in an example aspect, can be that the motion component direction follows the direction of the second motor. This is just an example given, and other steering relationships can be used according to various aspects of the present invention.

[0139] like Fig.19 and Fig. 20 In the illustrated situation, in one exemplary aspect, given the actuation parameters of the motor-actuated motion assembly, the average running gait cycle is 0.8 seconds, the average vertical displacement is 90 mm, the average maximum steering angle is 20°, the initial position of the trunk model is reflected as a valley on the z-axis displacement curve, the initial orientation is at the far left (i.e., 20° turned left), the first motor 221 is configured to actuate the motion assembly 220 so that the trunk model 100 moves 90 mm upward, and then moves 90 mm downward, repeating the process for 20 seconds, the second motor 222 is configured to actuate the motion assembly 220 so that the trunk model 100 rotates 40° clockwise, and then rotates 40° counterclockwise back to the initial orientation, and repeating the process for 20 seconds. The first motor 221 and the second motor 222 are started simultaneously, so that the trunk model simultaneously moves in the vertical direction and rotates in the horizontal direction to simulate the motion state of the human body.

[0140] As shown in the example, when evaluating the support performance of a bra on the breast, the human model system 600 is actuated to perform predetermined linear and / or rotational movements under the conditions of wearing clothing and not wearing clothing. For example, the motion component 220 is actuated in the first cycle, and the clothing being evaluated (e.g., a bra) is positioned on the torso model 100, so the first cycle can simulate the movement trajectory of the breast structure and torso of a human breast structure when wearing a bra (with external support). Then the motion component 220 is actuated in the second cycle, and no clothing is positioned on the torso model 100, so the second cycle can simulate the movement trajectory of the breast structure and torso of a human breast structure when not wearing a bra (without external support).

[0141] The duration and actuation parameters of the first and second cycles and the motion of the motion component during the first and second cycles may be the same. The motion data acquired by the 3D motion capture system 500 is transmitted to the analysis system 800, which processes the motion data as follows.

[0142] like Fig.21 In the illustrated situation, in terms of example, the three-dimensional motion capture system 500 acquires three motion trajectories in a single cycle, which are captured by the markers at the center of the left and right clavicles and the nipple area, respectively, including the trunk motion trajectory (clavicle) represented by the markers at the center of the left and right clavicles, the first breast motion trajectory (Left nipple) represented by the markers in the first nipple area, and the second breast motion trajectory (Right nipple) represented by the markers in the second nipple area. It can be seen that the breast motion trajectory shows a larger displacement than the trunk motion trajectory, because when the trunk changes from a moving state to a stationary state, the breast structure will still deviate under the influence of gravity and inertia, so the breast motion trajectory reflects both the trunk movement and the displacement movement of the breast.

[0143] The term "RND" proposed in the present invention is described as the breast motion deviation rate, which is used to describe the deviation degree of breast motion. In order to obtain RND, it is necessary to separate the breast deviation motion data from the total trajectory data. In an example, it is obtained by offsetting the torso motion trajectory in the first breast motion trajectory and the second breast motion trajectory.

[0144] The clavicle is a relatively rigid part of the chest area, so the trunk movement is roughly represented by the movement trajectory of the marker (clavicle) at the center of the left and right clavicles. The local coordinate system is constructed by taking the marker (clavicle) as the coordinate origin and forming a triangular plane with the markers at the left and right ribs, such as Fig. 22As shown, in the local coordinate system, u, n, and v represent the x, y, and z axes in the natural coordinate system, respectively. The u axis (x axis in the natural coordinate system) is the line connecting the two markers at the left and right ribs, the n axis is the normal vector of the triangular plane, and the v axis is the vector perpendicular to both the u axis and the n axis. represents the vector representation of each point in the first breast motion trajectory, The vector representation of each point in the trunk motion trajectory is represented by performing point-by-point subtraction of the first breast motion trajectory and the trunk motion trajectory obtained in the natural coordinate system, that is, the operation The unit vectors along each axis of the local coordinate system are expressed as follows: For the trajectory point representation in the local coordinate system, the coordinate difference calculated in the natural coordinate system Perform the following dot product operation with the unit vector in the local three-dimensional coordinate system The breast motion deviation trajectory is obtained, and each point in the breast motion deviation trajectory can be expressed as c = (c x ,c y ,c z ). As shown in FIG. 23(a) and FIG. 23(b), the breast motion offset trajectory obtained in the local coordinate system eliminates the trunk motion trajectory.

[0145] The average breast motion offset is calculated based on the obtained breast motion offset trajectory, and the average trunk displacement is calculated based on the trunk motion trajectory. In terms of examples, the average value of the difference between adjacent peaks and valleys in the breast motion offset trajectory can be counted. Similarly, the average trunk displacement can be calculated in the trunk motion trajectory in the same way, and the RND of the first breast structure is calculated based on the average breast motion offset and the average trunk displacement. It is conceivable but not described in detail in this article that the same calculation process can be performed on the second breast motion trajectory and the trunk motion trajectory to obtain the RND of the second breast structure.

[0146] In an exemplary aspect, the human body model system 600 is subjected to the same motion simulation process in the first cycle and the second cycle, and the RND calculated during the first cycle (wearing condition) and the RND calculated during the second cycle (no wearing condition) are compared. As shown in the example, the difference in the breast motion deviation rate under the wearing condition and the no wearing condition is compared, and the value of the degree of change is used to evaluate the support performance of the bra on the breast structure. In an exemplary aspect, an expression for calculating the difference in the breast motion deviation rate can be given here, that is, %BC=(RND nude -RND bra ) / RND nude *100%, %BC represents the difference in breast movement deviation rate, RND bra Indicates RND under wearing conditions, RND nudeRepresents RND without wearing condition. The larger the %BC is, the better the support performance of the bra for the breast structure is. It should be understood that the above is only an example of the present invention, and other solutions can be used according to various aspects of the present invention.

[0147] Fig.24 A flow chart of a method for evaluating the support performance of a bra is shown. As described above, a motion support can be actuated to allow a torso model to simulate a series of human motion states. The same variables are captured using markers when the torso model is positioned with supporting garments such as a bra and when no garments are positioned. The motion data obtained in the two cycles are compared, and the support performance of the bra is evaluated based on the comparison results.

[0148] refer to Fig.24 , the actuation control system 700 may include: at least one processor 1, at least one communication interface 2, at least one memory 3 and at least one communication bus 4;

[0149] In the embodiment of the present application, the number of the processor 1, the communication interface 2, the memory 3, and the communication bus 4 is at least one, and the processor 1, the communication interface 2, and the memory 3 communicate with each other through the communication bus 4;

[0150] The processor 1 may be a central processing unit CPU, or an application-specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention, etc.;

[0151] The memory 3 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory;

[0152] The memory stores a program, and the processor can call the program stored in the memory to implement the control process of the actuating motion component in the above example.

[0153] The analysis system 800 may adopt an architecture similar to that of the actuation control system 700 to implement processing and analysis of motion trajectory data. In other examples, the analysis system 800 may also be integrated with the actuation control system 700 in the same device.

[0154] The actuation control system 700 and the analysis system 800 generally include various computer-readable media, which may be any available media that can be accessed by the actuation control system 700 or the analysis system 800, and include volatile media and non-volatile media, removable media and non-removable media. As an example and not a limitation, computer-readable media may include computer storage media and communication media. These media store programs suitable for execution by a processor, which when executed can be used to implement the processing of the aforementioned exemplary aspects, and its logic can refer to the relevant description of the aforementioned exemplary aspects.

[0155] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0156] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bra support performance evaluation method, characterized in that: include: Actuating the motion bracket to make the torso model move linearly and / or rotationally, the torso model is provided with marking points, and the setting positions of the marking points include the center of the left and right clavicles, the left rib, the right rib, and the nipple area of ​​the torso model. The marking points set at the center of the left and right clavicles, the left rib, and the right rib are used to capture the torso motion trajectory of the torso model, and the marking points set at the nipple area are used to capture the breast motion trajectory of the torso model; The torso motion trajectory and the breast motion trajectory are obtained by capturing the motion trajectory data of the marking points, and the breast motion deviation rate is calculated according to the torso motion trajectory and the breast motion trajectory; The calculation of the breast movement deviation rate includes the following process: offsetting the trunk motion in the breast motion trajectory according to the trunk motion trajectory to obtain a breast motion offset trajectory; During the recorded gait cycle, an average breast movement offset is calculated according to the breast movement offset trajectory, and an average trunk displacement is calculated according to the trunk movement trajectory; Calculating a breast motion displacement rate according to the average breast motion displacement and the average trunk displacement; The method of offsetting the trunk motion in the breast motion trajectory according to the trunk motion trajectory to obtain the breast motion offset trajectory comprises: A local three-dimensional coordinate system is established with the mark point at the center of the left and right clavicles of the torso model as the origin, the vector direction formed by the left and right rib mark points as the x-axis, the normal vector of the triangular plane formed by the three mark points as the y-axis, and the vector perpendicular to both the x-axis and the y-axis as the z-axis. The coordinate difference is obtained by subtracting the trunk motion trajectory and breast motion trajectory obtained in the natural coordinate system point by point. represents the vector representation of each point in the breast motion trajectory, The vector representation of each point in the trunk motion trajectory; For coordinate differences calculated in the natural coordinate system The dot product operation is performed with the unit vector of each axis in the local three-dimensional coordinate system to obtain the breast motion deviation trajectory, that is, in represents the unit vector of each axis of the local three-dimensional coordinate system, and each point in the breast motion deviation trajectory can be expressed as c=(c x ,c y ,c z ); The step of calculating the average breast movement offset according to the breast movement offset trajectory and calculating the average trunk displacement according to the trunk movement trajectory during the recorded gait cycle comprises: The average breast movement offset is obtained by calculating the average value of the difference between adjacent peak-to-valley values ​​in the breast movement offset trajectory, and the average trunk displacement is obtained by calculating the average value of the difference between adjacent peak-to-valley values ​​in the trunk movement trajectory; The difference in breast movement deviation rate between wearing and not wearing is calculated, wherein the difference in breast movement deviation rate = (breast movement deviation rate without wearing - breast movement deviation rate with wearing) / breast movement deviation rate without wearing * 100%. The greater the difference in breast movement deviation rate, the better the bra support performance.

2. The bra support performance evaluation method according to claim 1, characterized in that: The actuating motion bracket comprises: Obtain real human motion parameters; Calculating actuation parameters according to the real human body motion parameters; The motion support is actuated according to the actuation parameters.

3. The bra support performance evaluation method according to claim 2, characterized in that: The real human motion parameter includes at least one of a running gait cycle, an average vertical displacement, and an average maximum rotation angle.

4. The bra support performance evaluation method according to claim 3, characterized in that: The actuation parameters include linear motion actuation parameters and rotational motion actuation parameters.

5. The bra support performance evaluation method according to claim 4, characterized in that: The linear motion actuation parameters include vertical displacement and vertical motion speed.

6. The bra support performance evaluation method according to claim 4, characterized in that: The rotational motion actuation parameters include a rotation angle and a steering speed.

7. The bra support performance evaluation method according to claim 5, characterized in that: The vertical movement speed is calculated as follows:

8. The bra support performance evaluation method according to claim 6, characterized in that: The steering speed is calculated as follows:

9. The bra support performance evaluation method according to claim 3, characterized in that: The obtaining of the average vertical displacement comprises: The motion curve of the human clavicle position in the z-axis direction in the natural coordinate system is recorded, and the average value of several adjacent peak-to-valley displacement differences in one evaluation cycle is calculated, and the average value is recorded as the average vertical displacement.

10. A human model system for evaluating bra support performance, characterized in that: include: A torso model, wherein the torso model is provided with marker points; a motion support, to which the torso model is fixed; The motion mount is actuated to provide linear and / or rotational movement of the torso model; A three-dimensional motion capture unit is used to capture the motion trajectory data of the marker points and transmit the data to the analysis system to evaluate the bra support performance; The human body model system is used to implement the bra support performance evaluation method described in any one of claims 1-9.

11. The human body model system for evaluating bra support performance according to claim 10, characterized in that: The surface of the torso model is covered with a replaceable bionic skin layer, and a hollow groove for placing a breast substitute is formed on the skin layer to simulate the structure of a human breast.

12. The human body model system for evaluating bra support performance according to claim 11, characterized in that: The bionic skin layer includes silicone material.

13. The human body model system for evaluating bra support performance according to claim 11, characterized in that: The breast substitute comprises a silicone material.

14. The human body model system for evaluating bra support performance according to claim 10, characterized in that: The torso model includes a fiberglass material.

15. The human body model system for evaluating bra support performance according to claim 10, characterized in that: The motion support comprises a metal frame and an actuating assembly, wherein the actuating assembly is fixed at the center of the metal frame structure, and the torso model is fixed to the actuating assembly.

16. The human body model system for evaluating bra support performance according to claim 15, characterized in that: The actuating assembly includes a first motor, a second motor, and a retractable rod; The actuation assembly receives an actuation parameter to cause the torso model to move linearly and / or rotationally; The first motor controls the telescopic rod to extend and retract in the vertical direction to make the trunk model move linearly, and the second motor controls the trunk model to rotate.

17. The human body model system for evaluating bra support performance according to claim 16, characterized in that: The actuation parameters include linear motion actuation parameters and rotational motion actuation parameters.

18. The human body model system for evaluating bra support performance according to claim 16, characterized in that: The actuation parameters are calculated according to real human body motion parameters.

19. The human body model system for evaluating bra support performance according to claim 17, characterized in that: The linear motion actuation parameters include vertical displacement and vertical motion speed.

20. The human body model system for evaluating bra support performance according to claim 19, characterized in that: The rotational motion actuation parameters include a rotation angle and a rotation speed.

21. The human body model system for evaluating bra support performance according to claim 16, characterized in that: The first motor is a servo motor.

22. The human body model system for evaluating bra support performance according to claim 16, characterized in that: The second motor is a stepping motor.

23. The human body model system for evaluating bra support performance according to claim 15, characterized in that: The actuation assembly is communicatively coupled to an external actuation control system.

24. The human body model system for evaluating bra support performance according to claim 23, characterized in that: The base of the actuating assembly is provided with a communication line, and the actuating assembly is electrically connected to the actuating control system via the communication line.

25. An evaluation device, characterized in that The device is communicatively coupled to the human body model system provided by any one of claims 10-24, and comprises a memory and a processor storing computer executable instructions, and when the computer executable instructions are executed by the processor, the device executes the bra support performance evaluation method provided by any one of claims 1-9.

26. A computer-readable storage medium storing a computer-executable program, characterized in that: When the program is executed, the bra support performance evaluation method provided in any one of claims 1 to 9 can be implemented.

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