Design method and device for ultra-light toddler shoe toe model based on toe dynamic data

Abstract

The present invention belongs to the field of computer-aided design and proposes a method and device for designing an ultralight toe model for a baby toddler shoe based on dynamic toe data. The method includes the following steps: obtaining the baby toddler shoe's walking dynamic data and the toe thickness of the baby toddler shoe; calculating the toe bending angle balance and the toe midsole compression deformation balance based on the baby toddler shoe's walking dynamic data; calculating the appropriate toe thickness based on the toe thickness, the toe bending angle balance, and the toe midsole compression deformation balance; and generating a new baby toddler shoe body model based on the appropriate toe thickness. The design method according to an embodiment of the present invention can optimize the toe thickness, adjust the toe bending angle, and the midsole compression performance, so that the toe can better adapt to a child's walking process.

Description

Technical Field

[0001] The present invention belongs to the field of computer-aided design, and in particular relates to a method and device for designing a toe model of an ultra-light toddler shoe based on dynamic toe data. Background Art

[0002] Patent No. CN114996786B, entitled "Method and Apparatus for Shoe Model Design Based on Dynamic Foot Data," proposes a shoe model design method that relies on static data (such as foot shape data, static pressure distribution, etc.) to determine the shape and thickness of the shoe. Although these static designs can meet some needs, they cannot reflect the dynamic changes of the shoe during actual walking. In addition, the use of toddler shoes is dynamic, and the bending and compression of the shoe during walking will change with the change of gait. Traditional methods cannot capture these dynamic changes, resulting in the design of the toe and sole often not matching the actual usage. For example, during walking, the bending angle of the toe and the compression of the midsole will change as the steps progress, and traditional static designs cannot adjust according to these changes.

[0003] The design of learning shoes must ensure the coordinated interaction between the toe box and the sole, specifically the coordination between the toe box's curvature and the midsole's compression. The toe box's curvature affects the toes' range of motion and comfort, while the midsole's compressibility determines the sole's elasticity and support. A significant discrepancy between the toe box's curvature and the midsole's compression can lead to the following problems: insufficient toe box curvature and excessive midsole compression, resulting in insufficient sole support. This can lead to foot fatigue, discomfort, or pain during walking, and compromised gait stability and comfort. Summary of the Invention

[0004] The present invention aims to at least partially address one of the technical problems in the related art. To this end, the first object of the present invention is to propose a method for designing a toe model for ultra-light toddler shoes based on dynamic toe data. This method can optimize the toe thickness, adjust the toe bending angle, and adjust the midsole compression performance to better adapt to a child's walking process.

[0005] The second object of the present invention is to provide a device for designing a toe model of an ultra-light toddler shoe based on toe dynamic data.

[0006] To achieve the above-mentioned purpose, the first embodiment of the present invention provides a method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data to determine the midsole compression amount;

[0007] S100, obtaining walking dynamic data of the toddler shoes and the thickness of the toe of the toddler shoes;

[0008] S200, calculating a toe bending angle balance and a toe midsole compression deformation balance based on walking dynamic data of the toddler shoe;

[0009] S300 calculates the appropriate toe thickness based on the toe thickness, toe bending angle balance, and toe midsole compression deformation balance of the toe;

[0010] S400 generates a new toddler shoe model by adjusting the toe box thickness.

[0011] According to the design method of the embodiment of the present invention, the toe thickness can be optimized to adjust the bending angle of the toe and the compression performance of the midsole, so that the toe can better adapt to the walking process of children.

[0012] Furthermore, in step S100, the walking dynamic data of the toddler shoes and the toe thickness of the toddler shoes are obtained, wherein the walking dynamic data of the toddler shoes include the toe bending angle and the midsole compression amount, including:

[0013] Toddler shoes are designed and produced using the shoe body model design method proposed in patent number CN114996786B, entitled "Method and Apparatus for Designing a Shoe Body Model Based on Foot Dynamic Data." The toddler shoes produced using this method are designed and produced by shooting a single 5-second dynamic walking video of the toddler shoe at different angles, with the time interval T of the video frames set to [0.1] seconds. This time interval is used to ensure that each frame of the image reflects the dynamic changes of the toddler shoe during walking. The shot walking video is frame-processed according to the time interval T to obtain multiple static images of the toddler shoe during walking, which correspond to the dynamic states at different time points. The walking dynamic data of the toddler shoe is obtained by performing image recognition on the static images of the toddler shoe during movement, wherein the walking dynamic data of the toddler shoe includes the toe bending angle and the midsole compression (midsole compression or midsole compression deformation).

[0014] Furthermore, the thickness of the toe of the learning shoe is obtained, wherein the method for obtaining the thickness of the toe of the learning shoe is to obtain it through the thickness parameter of the toe of the shoe body model of the learning shoe.

[0015] Because the design of learning shoes requires ensuring the interaction and coordination between the toe and the sole, especially the coordination between the toe curvature and the midsole compression; the toe curvature angle affects the range of motion and comfort of the toes, while the compressibility of the midsole determines the elasticity and support of the sole. If the difference between the toe curvature angle and the midsole compression performance is too large, it may lead to the following problems: insufficient toe curvature angle and excessive midsole compression, the sole cannot provide sufficient support, leading to foot fatigue during walking, prone to discomfort or pain, and affecting the stability and comfort of gait. To solve the above problems, the present invention proposes step S200;

[0016] Furthermore, in step S200, calculating the toe bending angle balance and the toe midsole compression deformation balance according to the walking dynamic data of the toddler shoe includes:

[0017] Let Head(Tk) be the toe bending angle of the toddler shoe at the kth time interval, and SOL(Tk) be the midsole compression of the toddler shoe at the kth time interval, where Tk = [(k-1)*T, k*T], k = 1, 2, ..., C, C = 50; obtain the maximum value of Head(Tk) and record it as Head(Tm), record Tm as the bending time, obtain the maximum value of SOL(Tk) and record it as SOL(Tx), record Tx as the compression time, m∈[1, C], x∈[1, C];

[0018] Calculate the balance of compression deformation of the toe midsole and the balance of the toe bending angle;

[0019] When walking in toddler shoes, first determine the maximum midsole compression SOL(Tm), which is the midsole compression value when the toe bending angle is the largest (i.e., at time Tm); calculate the sum of the differences between the compression SOL(Tk) and SOL(Tm) from the 1st to the Cth time point as the difference sum, and use 1 minus the difference sum divided by the product of the time interval C and SOL(Tm) as the correction ratio. Multiply the correction ratio by SOL(Tm) to obtain the toe midsole compression deformation balance SOLK. The mathematical expression of SOLK is:

[0020]

[0021] The principles of toe-toe midsole compression balance and toe-toe bending angle balance are based on the dynamic performance of toddler shoes during walking, reflecting the interactive relationship between the toe and midsole. The toe-toe midsole compression balance analyzes the midsole compression at different time points during walking, specifically when the toe bending angle reaches its maximum (bending time), and calculates the difference between the compression at each moment and the maximum midsole compression. Adjusting the thickness based on the toe-toe midsole compression balance ensures that the sole's inherent stress and external loads are balanced when the toe bending angle reaches its maximum, preventing irreversible physical bending, which in turn improves the stability of the shoe.

[0022] Furthermore, the toe bending angle balance HeadK is calculated by the toe midsole compression deformation balance. This angle is calculated based on the maximum bending angle Head(Tm) and the toe midsole compression deformation balance SOLK.

[0023] The calculation steps of the toe bending angle balance value HeadK include:

[0024] The maximum bending angle Head (Tm) is taken as the reference value and multiplied by the balance ratio to be recorded as HeadK, where the balance ratio is the ratio between the compression deformation balance of the toe midsole SOLK and SOL (Tx). The calculation formula of the toe bending angle balance HeadK is:

[0025]

[0026] The toe box bend balance is determined by the ratio of the maximum bend angle to the corrected midsole compression set. It measures the balance between the toe box's bending degree and the midsole's compressive performance. A large discrepancy between the toe box's bending and compression may indicate insufficient thickness, preventing effective foot support. Conversely, a small discrepancy may indicate excessive thickness, impacting comfort. Combining these two factors helps optimize toe box thickness through dynamic data for optimal comfort and support.

[0027] The beneficial effects of this step are as follows: Step S200 calculates the dynamic walking data of the toddler shoes to accurately obtain the balance of the toe bending angle and the balance of the toe midsole compression deformation, thereby providing a scientific basis for the design of the toe thickness; by shooting a dynamic video of the toddler shoes during walking and combining image recognition technology to extract dynamic data such as the toe bending angle and midsole compression, it can quantitatively reflect the dynamic changes of the toe and sole at different time points; by comparing the maximum bending angle and the maximum midsole compression, the balance of the toe bending angle and the balance of the toe midsole compression deformation are calculated, and then the temporal relationship between the toe bending and compression is analyzed, ensuring that the toddler shoes can effectively support the dynamic changes of the foot and provide a comfortable walking experience. Compared with traditional static design methods, S200 can accurately capture the interaction between the toe and the footstep through dynamic data-driven design optimization, which can meet the user's comfort and support needs.

[0028] Since the shoe body model design method proposed in patent number CN114996786B, entitled "Method and device for designing shoe body models based on dynamic foot data", relies on static data (such as foot shape data, static pressure distribution, etc.) to determine the shape and thickness of the shoe when designing and producing toddler shoes, although these static designs can meet some needs, they cannot reflect the dynamic changes of the shoe during actual walking. In addition, the use process of toddler shoes is dynamic, and the bending and compression of the shoe during walking will change with the change of gait. Traditional methods cannot capture these dynamic changes, resulting in the design of the toe and sole often not matching the actual usage. For example, during walking, the bending angle of the toe and the compression of the midsole will change as the steps advance, and traditional static designs cannot be adjusted according to these changes. In order to solve the above problem, the present invention proposes step S300.

[0029] Furthermore, in step S300, the appropriate thickness of the toe is calculated by the toe thickness of the toddler shoe, the toe bending angle balance and the toe midsole compression deformation balance: for each time interval Tk, the angle offset difference HAK(Tk) = |Head(Tk)+HeaK-Head(Tx)|÷(HeaK×3) is calculated, where || is the absolute value, Head(Tk) is the toe bending angle of the toddler shoe at the kth time interval, HeaK is the bending angle balance, and Head(Tx) is the toe bending angle at the compression time; all the angle offset differences are added and divided by C to obtain the thickness balance ratio β, and the toe thickness of the toddler shoe is denoted as U. When β is greater than 0.2, the appropriate thickness of the toe Uadjusted is U×(1+β-0.2); when β is less than 0.2, the appropriate thickness of the toe Uadjusted is U×(1-β).

[0030] The angle offset difference, HAK(Tk), is the difference between the actual toe flexion angle, Head(Tk), and the toe flexion angle, HeaK, during compression, for each time interval (Tk). Excessive angle offset differences indicate a design issue with the toe box, resulting in insufficient support or incompatibility with foot dynamics.

[0031] The thickness balance ratio β reflects the relationship between the toe box's bending angle and midsole compression. When β is greater than 0.2, the difference between the toe box's bending angle and compression is large, indicating that the toe box thickness is too small to effectively support dynamic bending and deformation. When β is less than 0.2, the difference between the toe box's bending angle and compression is small, indicating that the toe box thickness is too large, or the dynamic support is too strong, failing to meet comfort requirements. The toe box thickness needs to be reduced to increase flexibility.

[0032] S400, generates a new toddler shoe model through moderate thickness of the toe box;

[0033] The appropriate thickness Uadjusted of the toe of the toddler shoe is used as the toe thickness parameter and applied to the shoe body model design to generate a new toddler shoe body model.

[0034] Preferably, the geometric shape of the toe cap is adjusted according to the appropriate thickness, especially the curve and thickness distribution of the toe cap to ensure that it can support the bending of the foot without hindering normal walking movements.

[0035] Preferably, based on the result of appropriate thickness adjustment and combined with other walking dynamic data (such as gait, walking frequency, etc.), the overall design of the shoe body is adjusted through computer-aided design software to optimize the balance of the toe and sole to ensure that the comfort and support of the shoe can achieve the expected results.

[0036] To achieve the above-mentioned purpose, the second aspect embodiment of the present invention further proposes a device for designing a toe model of an ultra-light toddler shoe based on toe dynamic data. The device for designing a toe model of an ultra-light toddler shoe based on toe dynamic data includes: a processor, a memory, and a computer program stored in the memory and runnable on the processor. When the processor executes the computer program, the steps in a method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data are implemented. The device for designing a toe model of an ultra-light toddler shoe based on toe dynamic data runs on a computing device such as a desktop computer, a notebook, a PDA, and a cloud data center.

[0037] By implementing an ultra-light toddler shoe toe model design method based on toe dynamic data through an ultra-light toddler shoe toe model design device based on toe dynamic data, the toe thickness can be optimized, the toe bending angle and the compression performance of the midsole can be adjusted, so that the shoe can better adapt to the child's walking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Shown is a flow chart of a method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data;

[0039] Figure 2 Shown is a structural diagram of a device for designing a toe model of ultra-lightweight toddler shoes based on toe dynamic data. DETAILED DESCRIPTION

[0040] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0041] Figure 1 Shown is a flow chart of a method for designing a toe model of ultra-lightweight toddler shoes based on toe dynamic data.

[0042] Reference Figure 1 The present invention proposes a method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data, the method comprising the following steps:

[0043] S100, obtaining walking dynamic data of the toddler shoes and the thickness of the toe of the toddler shoes;

[0044] S200, calculating a toe bending angle balance and a toe midsole compression deformation balance based on walking dynamic data of the toddler shoe;

[0045] S300 calculates the appropriate toe thickness based on the toe thickness, toe bending angle balance, and toe midsole compression deformation balance of the toe;

[0046] S400 generates a new toddler shoe model by adjusting the toe box thickness.

[0047] According to the design method of the embodiment of the present invention, the toe thickness can be optimized to adjust the bending angle of the toe and the compression performance of the midsole, so that the toe can better adapt to the walking process of children.

[0048] Furthermore, in step S100, the walking dynamic data of the toddler shoes and the toe thickness of the toddler shoes are obtained, wherein the walking dynamic data of the toddler shoes include the toe bending angle and the midsole compression amount, including:

[0049] Toddler shoes are designed and produced using the shoe body model design method proposed in patent number CN114996786B, entitled "Method and Apparatus for Designing a Shoe Body Model Based on Foot Dynamic Data." The toddler shoes produced using this method are designed and produced by shooting a single 5-second dynamic walking video of the toddler shoe at different angles, with the time interval T of the video frames set to [0.1] seconds. This time interval is used to ensure that each frame of the image reflects the dynamic changes of the toddler shoe during walking. The shot walking video is frame-processed according to the time interval T to obtain multiple static images of the toddler shoe during walking, which correspond to the dynamic states at different time points. The walking dynamic data of the toddler shoe is obtained by performing image recognition on the static images of the toddler shoe during movement, wherein the walking dynamic data of the toddler shoe includes the toe bending angle and the midsole compression (midsole compression or midsole compression deformation).

[0050] Furthermore, the thickness of the toe of the learning shoe is obtained, wherein the method for obtaining the thickness of the toe of the learning shoe is to obtain it through the thickness parameter of the toe of the shoe body model of the learning shoe.

[0051] Because the design of learning shoes requires ensuring the interaction and coordination between the toe and the sole, especially the coordination between the toe curvature and the midsole compression; the toe curvature angle affects the range of motion and comfort of the toes, while the compressibility of the midsole determines the elasticity and support of the sole. If the difference between the toe curvature angle and the midsole compression performance is too large, it may lead to the following problems: insufficient toe curvature angle and excessive midsole compression, the sole cannot provide sufficient support, leading to foot fatigue during walking, prone to discomfort or pain, and affecting the stability and comfort of gait. To solve the above problems, the present invention proposes step S200;

[0052] Furthermore, in step S200, calculating the toe bending angle balance and the toe midsole compression deformation balance according to the walking dynamic data of the toddler shoe includes:

[0053] Let Head(Tk) be the toe bending angle of the toddler shoe at the kth time interval, and SOL(Tk) be the midsole compression of the toddler shoe at the kth time interval, where Tk = [(k-1)*T, k*T], k = 1, 2, ..., C, C = 50; obtain the maximum value of Head(Tk) and record it as Head(Tm), record Tm as the bending time, obtain the maximum value of SOL(Tk) and record it as SOL(Tx), record Tx as the compression time, m∈[1, C], x∈[1, C];

[0054] Calculate the balance of compression deformation of the toe midsole and the balance of the toe bending angle;

[0055] When walking in toddler shoes, first determine the maximum midsole compression SOL(Tm), which is the midsole compression value when the toe bending angle is the largest (i.e., at time Tm); calculate the sum of the differences between the compression SOL(Tk) and SOL(Tm) from the 1st to the Cth time point as the difference sum, and use 1 minus the difference sum divided by the product of the time interval C and SOL(Tm) as the correction ratio. Multiply the correction ratio by SOL(Tm) to obtain the toe midsole compression deformation balance SOLK. The mathematical expression of SOLK is:

[0056]

[0057] The principles of toe-toe midsole compression balance and toe-toe bending angle balance are based on the dynamic performance of toddler shoes during walking, reflecting the interactive relationship between the toe and midsole. The toe-toe midsole compression balance analyzes the midsole compression at different time points during walking, specifically when the toe bending angle reaches its maximum (bending time), and calculates the difference between the compression at each moment and the maximum midsole compression. Adjusting the thickness based on the toe-toe midsole compression balance ensures that the sole's inherent stress and external loads are balanced when the toe bending angle reaches its maximum, preventing irreversible physical bending, which in turn improves the stability of the shoe.

[0058] Furthermore, the toe bending angle balance HeadK is calculated by the toe midsole compression deformation balance. This angle is calculated based on the maximum bending angle Head(Tm) and the toe midsole compression deformation balance SOLK.

[0059] The calculation steps of the toe bending angle balance value HeadK include:

[0060] The maximum bending angle Head (Tm) is taken as the reference value and multiplied by the balance ratio to be recorded as HeadK, where the balance ratio is the ratio between the compression deformation balance of the toe midsole SOLK and SOL (Tx). The calculation formula of the toe bending angle balance HeadK is:

[0061]

[0062] The toe box bend balance is determined by the ratio of the maximum bend angle to the corrected midsole compression set. It measures the balance between the toe box's bending degree and the midsole's compressive performance. A large discrepancy between the toe box's bending and compression may indicate insufficient thickness, preventing effective foot support. Conversely, a small discrepancy may indicate excessive thickness, impacting comfort. Combining these two factors helps optimize toe box thickness through dynamic data for optimal comfort and support.

[0063] The beneficial effects of this step are as follows: Step S200 calculates the dynamic walking data of the toddler shoes to accurately obtain the balance of the toe bending angle and the balance of the toe midsole compression deformation, thereby providing a scientific basis for the design of the toe thickness; by shooting a dynamic video of the toddler shoes during walking and combining image recognition technology to extract dynamic data such as the toe bending angle and midsole compression, it can quantitatively reflect the dynamic changes of the toe and sole at different time points; by comparing the maximum bending angle and the maximum midsole compression, the balance of the toe bending angle and the balance of the toe midsole compression deformation are calculated, and then the temporal relationship between the toe bending and compression is analyzed, ensuring that the toddler shoes can effectively support the dynamic changes of the foot and provide a comfortable walking experience. Compared with traditional static design methods, S200 can accurately capture the interaction between the toe and the footstep through dynamic data-driven design optimization, which can meet the user's comfort and support needs.

[0064] Since the shoe body model design method proposed in patent number CN114996786B, entitled "Method and device for designing shoe body models based on dynamic foot data", relies on static data (such as foot shape data, static pressure distribution, etc.) to determine the shape and thickness of the shoe when designing and producing toddler shoes, although these static designs can meet some needs, they cannot reflect the dynamic changes of the shoe during actual walking. In addition, the use process of toddler shoes is dynamic, and the bending and compression of the shoe during walking will change with the change of gait. Traditional methods cannot capture these dynamic changes, resulting in the design of the toe and sole often not matching the actual usage. For example, during walking, the bending angle of the toe and the compression of the midsole will change as the steps advance, and traditional static designs cannot be adjusted according to these changes. In order to solve the above problem, the present invention proposes step S300.

[0065] Furthermore, in step S300, the appropriate thickness of the toe is calculated by the toe thickness of the toddler shoe, the toe bending angle balance and the toe midsole compression deformation balance: for each time interval Tk, the angle offset difference HAK(Tk) = |Head(Tk)+HeaK-Head(Tx)|÷(HeaK×3) is calculated, where || is the absolute value, Head(Tk) is the toe bending angle of the toddler shoe at the kth time interval, HeaK is the bending angle balance, and Head(Tx) is the toe bending angle at the compression time; all the angle offset differences are added and divided by C to obtain the thickness balance ratio β, and the toe thickness of the toddler shoe is denoted as U. When β is greater than 0.2, the appropriate thickness of the toe Uadjusted is U×(1+β-0.2); when β is less than 0.2, the appropriate thickness of the toe Uadjusted is U×(1-β).

[0066] The angle offset difference, HAK(Tk), is the difference between the actual toe flexion angle, Head(Tk), and the toe flexion angle, HeaK, during compression, for each time interval (Tk). Excessive angle offset differences indicate a design issue with the toe box, resulting in insufficient support or incompatibility with foot dynamics.

[0067] The thickness balance ratio β reflects the relationship between the toe box's bending angle and midsole compression. When β is greater than 0.2, the difference between the toe box's bending angle and compression is large, indicating that the toe box thickness is too small to effectively support dynamic bending and deformation. When β is less than 0.2, the difference between the toe box's bending angle and compression is small, indicating that the toe box thickness is too large, or the dynamic support is too strong, failing to meet comfort requirements. The toe box thickness needs to be reduced to increase flexibility.

[0068] S400, generates a new toddler shoe model through moderate thickness of the toe box;

[0069] The appropriate thickness Uadjusted of the toe of the toddler shoe is used as the toe thickness parameter and applied to the shoe body model design to generate a new toddler shoe body model.

[0070] Preferably, the geometric shape of the toe cap is adjusted according to the appropriate thickness, especially the curve and thickness distribution of the toe cap to ensure that it can support the bending of the foot without hindering normal walking movements.

[0071] Preferably, based on the result of appropriate thickness adjustment and combined with other walking dynamic data (such as gait, walking frequency, etc.), the overall design of the shoe body is adjusted through computer-aided design software to optimize the balance of the toe and sole to ensure that the comfort and support of the shoe can achieve the expected results.

[0072] The experimental design is as follows:

[0073] Experimental purpose: By comparing the performance of toddler shoes made by traditional design methods and those made by dynamic data optimization design methods in terms of comfort, support, gait stability, etc., the advantages of toddler shoes designed based on dynamic data optimization are evaluated.

[0074] Experimental Preparation: Experimental Group: Toddler shoes optimized and designed using the ultra-light toe model design method based on toe dynamic data proposed in this invention. Control Group: Toddler shoes designed and produced using the shoe body model design method proposed in Patent No. CN114996786B, entitled "Method and Apparatus for Shoe Body Model Design Based on Foot Dynamic Data."

[0075] Equipment and Tools: Motion tracking device: used to capture dynamic walking data while wearing toddler shoes. Pressure distribution test pad: used to test the pressure distribution on the sole during gait. Gait analyzer: used to record gait stability and monitor changes in center of gravity during walking. Video camera: used to capture video of the toddler shoes during walking and capture dynamic changes.

[0076] Participants: 20 volunteers (10 males, 10 females), aged 5-12 years old. Each volunteer was required to wear the shoes of the experimental group and the control group for walking tests.

[0077] Testing and data collection during the experiment:

[0078] 1. Subjective Rating of Comfort and Support: Volunteers walked for 10 minutes wearing the experimental and control shoes. The comfort and support of each volunteer were assessed during the test. Each volunteer rated the shoes based on their personal experience on a scale of 1-10.

[0079] 2. Gait Analysis: Volunteers will perform a 5-minute gait test wearing two types of walking shoes. Gait stability will be recorded using a gait analysis instrument, and pressure distribution on the sole will be analyzed using a pressure test pad. Center of gravity change and gait stability scores will be used as evaluation indicators for the dynamic adaptability of the shoes.

[0080] 3. Pressure distribution test: Use a pressure sensor to test the pressure distribution of the sole in contact with the ground during walking to evaluate the support and comfort of the sole.

[0081] Statistics and analysis of experimental results:

[0082] The results of the experimental and control groups were statistically analyzed to compare the differences in comfort, support, gait stability, pressure distribution, center of gravity change, etc. Statistical software was used to analyze the data and evaluate the advantages and disadvantages of dynamic data-driven toddler shoe design compared to traditional design methods.

[0083] The statistical results are as follows:

[0084]

[0085] The experimental group significantly outperformed the control group in terms of comfort, support, and gait stability. The experimental group's shoes had more even pressure distribution, effectively controlling center of gravity shifts and providing better gait support. An optimization design method based on dynamic data effectively improved the comfort and support of the toddler shoes, particularly in terms of the balance between the toe box bend angle and the midsole compression set.

[0086] Reference Figure 2 The present invention also proposes a device 20 for designing a toe model of an ultra-light toddler shoe based on dynamic toe data. The device 20 includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of a method for designing a toe model of an ultra-light toddler shoe based on dynamic toe data are implemented. The device 20 runs on a computing device such as a desktop computer, a notebook computer, a PDA, and a cloud data center.

[0087] The design device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to run in the following units of the design device:

[0088] The acquisition unit 21 is used to obtain walking dynamic data of the toddler shoes and the thickness of the toe of the toddler shoes;

[0089] The conversion unit 22 is used to calculate the balance of the toe bending angle and the balance of the toe midsole compression deformation according to the walking dynamic data of the toddler shoe;

[0090] A calculation unit 23 is configured to calculate an appropriate thickness of the toe box according to the toe box thickness, the toe box bending angle balance, and the toe box midsole compression deformation balance;

[0091] The generating unit 24 is configured to generate a new toddler shoe body model by adjusting the toe thickness.

[0092] The device for designing a toe model of an ultralight toddler shoe based on dynamic toe data can be run on computing devices such as desktop computers, notebooks, PDAs, and cloud servers. The device for designing a toe model of an ultralight toddler shoe based on dynamic toe data can include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that the example is merely an example of a device for designing a toe model of an ultralight toddler shoe based on dynamic toe data 20, and does not constitute a limitation on a device for designing a toe model of an ultralight toddler shoe based on dynamic toe data 20. The device can include more or fewer components than the example, or combine certain components, or different components. For example, the device for designing a toe model of an ultralight toddler shoe based on dynamic toe data can also include input and output devices, network access devices, buses, and the like.

[0093] By executing the ultra-light toddler shoe toe model design method based on toe dynamic data through the ultra-light toddler shoe toe model design device 20 based on toe dynamic data, the toe thickness can be optimized, the toe bending angle and the compression performance of the midsole can be adjusted, so that it can better adapt to the child's walking process.

[0094] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution device, apparatus, or device (e.g., a computer-based device, a device including a processor, or other device that can fetch instructions from and execute instructions on an instruction execution device, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by, or in conjunction with, an instruction execution device, apparatus, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection having one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0095] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution device. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0096] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0097] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0098] In addition, the terms "first" and "second" used in the embodiments of the present invention are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in this embodiment. Therefore, the features defined by the terms "first" and "second" in the embodiments of the present invention can explicitly or implicitly indicate that the embodiment includes at least one of such features. In the description of the present invention, the word "plurality" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0099] In the present invention, unless otherwise clearly specified or limited in the embodiments, the terms "installed," "connected," "connect," and "fixed" appearing in the embodiments should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection. It can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements, or an interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood based on the specific implementation.

[0100] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0101] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data, characterized in that: The method comprises the following steps: S100, obtaining walking dynamic data of the toddler shoes and the thickness of the toe of the toddler shoes; S200, calculating the toe bending angle balance and the toe midsole compression deformation balance according to the walking dynamic data of the toddler shoes; step S200 includes: recording Head(Tk) as the toe bending angle of the toddler shoes at the kth time interval, SOL(Tk) as the midsole compression of the toddler shoes at the kth time interval, wherein Tk=[(k-1)*T,k*T], k=1,2,…,C,C=50; obtaining the maximum value of Head(Tk) and recording it as Head(Tm), recording Tm as the bending time, obtaining the maximum value of SOL(Tk) and recording it as SOL(Tx), recording Tx as the compression time, m∈[1,C], x∈[1,C]; wherein, the method for calculating the toe midsole compression deformation balance and the toe bending angle balance includes: during the walking process of the toddler shoes, first determining the maximum midsole compression S OL(Tm), SOL(Tm) is the midsole compression value at time Tm; the sum of the differences between the compression amounts SOL(Tk) and SOL(Tm) at k time points is calculated, divided by the product of the number of time intervals C and SOL(Tm), and the correction ratio is applied to SOL(Tm), finally obtaining the toe midsole compression deformation balance SOLK; the toe bending angle balance HeadK is calculated based on the toe midsole compression deformation balance, and this angle is calculated based on the maximum bending angle Head(Tm) and the corrected midsole compression amount SOLK; wherein, the calculation step of the toe bending angle balance HeadK includes: taking the maximum bending angle Head(Tm) as a reference value and multiplying it by the balance ratio, wherein the balance ratio is the ratio between the corrected midsole compression amount SOLK and the compression amount SOL(Tx) when the compression amount reaches the maximum; S300 calculates the appropriate toe thickness based on the toe thickness, toe bending angle balance, and toe midsole compression deformation balance of the toe; S400 generates a new toddler shoe model by adjusting the toe box thickness.

2. The method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data according to claim 1, characterized in that: The method for obtaining walking dynamic data and toe thickness of a toddler shoe includes: shooting a single 5-second dynamic walking video of the toddler shoe at different angles, setting the time interval T of the video frames to [0.1] seconds to ensure that each frame of the image reflects the dynamic changes of the toddler shoe during walking, performing frame processing on the shot walking video according to the time interval T, and obtaining multiple static images of the toddler shoe during walking, wherein these images correspond to the dynamic state of the toddler shoe at different time points; obtaining the walking dynamic data of the toddler shoe by performing image recognition on the static images of the toddler shoe during movement, wherein the walking dynamic data of the toddler shoe includes the toe bending angle and the midsole compression; The thickness of the toe of the learning shoe is obtained by obtaining the thickness parameter of the toe of the learning shoe body model.

3. The method for designing a toe model of an ultra-light toddler shoe based on toe dynamic data according to claim 1, characterized in that: In step S400, generating a new toddler shoe body model according to the appropriate toe thickness includes: using the appropriate toe thickness of the toddler shoe as a toe thickness parameter, applying it to the shoe body model design, and generating a new toddler shoe body model.

4. A device for designing a toe model of an ultra-light toddler shoe based on toe dynamic data, characterized in that: The device for designing a toe model of an ultra-lightweight toddler shoe based on dynamic toe data includes: a processor, a memory, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the steps of the method for designing a toe model of an ultra-lightweight toddler shoe based on dynamic toe data described in any one of claims 1 to 3 are implemented.

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