Pillow supporting performance testing method and system

Abstract

The application provides a pillow supporting performance test method and system, and relates to the pillow detection technical field. In view of the problem that the test method in the prior art does not meet the test requirements, the application selects a corresponding standardized human body model according to a target human group of a pillow to be tested, and arranges a pressure sensing device at key anatomical test points; according to the human body biomechanics characteristics, the key contact areas of the standardized human body model are structurally modified; the modified human body model is adjusted to a preset sleeping posture, and multi-degree-of-freedom posture compensation fine adjustment is performed, so that the position relationship between the modified human body model and the pillow sample to be tested meets a set reference; the pressure related data of each test point is continuously collected; the preset sleeping posture is repeatedly tested for a preset number of times, and the collected pressure related data is analyzed and calculated to obtain supporting performance quantitative indexes, and the quantitative indexes include average pressure, pressure peak value and pressure gradient. The test method meets the objective, repeatable and bionic quantitative test requirements.

Description

Technical Field

[0001] This invention relates to the field of pillow testing technology, and in particular to a method and system for testing the support performance of pillows. Background Technology

[0002] As one of the bedding products that have the longest contact with the human body, pillows directly affect the stress on the head, neck, and shoulders, and even influence sleep quality and spinal health. Pillow support performance testing provides objective data support for the research, design, and quality grading of pillow products, and is a key technical step in the research, development, production, and quality control of pillow products.

[0003] Currently, industry testing methods for pillow support performance are mainly divided into three categories: subjective sleep trial evaluation, rigid pressure head simulation testing, and flexible pressure pad testing. The subjective sleep trial evaluation involves recruiting real subjects to sleep on the pillow product under test, collecting qualitative evaluations of neck support and overall comfort through subjective questionnaires to determine the pillow's support performance. The rigid pressure head simulation testing uses rigid pressure heads such as spheres or cylinders to simulate the human head and neck area, and measures the pressure data between the pressure head and the pillow product's contact surface using pressure sensors to characterize support performance. The flexible pressure pad testing involves laying a flat flexible pressure pad on the pillow product's surface, having a real person lie on the pressure pad, and collecting contact pressure distribution data through the pressure pad to analyze the pillow's support performance.

[0004] In existing technologies, the testing methods for pillow support performance do not incorporate sleep posture and human biomechanics for biomimetic simulation design, and lack standardized posture control and calibration methods, resulting in large deviations in multiple test results and poor repeatability and comparability. At the same time, the evaluation indicators are singular or only qualitative descriptions, which cannot achieve objective and accurate quantitative evaluation. Overall, it is difficult to meet the requirements for objective, repeatable and biomimetic quantitative testing of pillow support performance.

[0005] Therefore, developing a method and system for testing the support performance of pillows is of great significance for meeting the requirements of objective, repeatable, and biomimetic quantitative testing of pillow support performance. Summary of the Invention

[0006] To address the problem that existing testing methods do not meet testing requirements, this invention proposes a method for testing the support performance of pillows, specifically including the following steps:

[0007] S1. Based on the target population of the pillow to be tested, select the corresponding standardized human body model and deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model.

[0008] S2. Based on the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, the key contact areas of the standardized human body model are structurally modified to obtain the modified human body model.

[0009] S3. Place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to the preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark.

[0010] S4. Continuously collect pressure-related data at each test point using a flexible pressure sensing device;

[0011] S5. Following S3-S4, repeat the test a preset number of times for the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain quantitative indicators of support performance.

[0012] Furthermore, key anatomical test points for standardized human models include: head anatomical points, neck anatomical points, and shoulder anatomical points.

[0013] Furthermore, the flexible pressure sensing device includes multiple independent flexible patch-type airbag pressure sensors.

[0014] Furthermore, the key contact areas include the pelvis, buttocks, chest and back, arms, and ears. In S2, based on the preset sleeping posture and the biomechanical characteristics of the human body under the preset sleeping posture, the key contact areas of the standardized human body model are structurally modified, including: if the preset sleeping posture is supine, the thickness of the buttocks area of ​​the standardized human body model is reduced geometrically, and the ischial tuberosity area is flattened; if the preset sleeping posture is lateral, the greater trochanter of the femur of the standardized human body model is laterally bulged, the arm structure of the standardized human body model is biomimeticly designed to adapt to the lateral posture of the human body, so that the shape of the contact part between the arm and the torso conforms to the pressure deformation characteristics of the human soft tissue under this posture, and the ear area below the lateral posture of the standardized human body model is platformed and raised.

[0015] Furthermore, the standardized human body model is equipped with a replacement module adapted to different cervical spine physiological curvatures.

[0016] Furthermore, in step S3, the modified human body model undergoes multi-degree-of-freedom posture compensation fine-tuning to ensure that the positional relationship between the modified human body model and the pillow sample under test meets the set benchmarks. This includes: fine-tuning the modified human body model using a multi-degree-of-freedom posture compensation mechanism within the modified human body model to ensure that the positional relationship between the modified human body model and the pillow sample under test meets the set benchmarks. The set benchmarks include: if the preset sleeping posture is supine, the acromion region of the modified human body model contacts the lower edge of the pillow sample under test, and the midline of the sagittal plane of the head coincides with the midline of the pillow sample under test; if the preset sleeping posture is lateral, the lower acromion region of the modified human body model contacts the lower edge of the pillow sample under test, and the lower tragus point of the modified human body model coincides with the midline of the pillow sample under test.

[0017] Furthermore, the benchmark settings also include: correcting the cervical spine of the human model to maintain a preset neutral posture.

[0018] Furthermore, before placing the pillow sample to be tested on the standardized testing platform, the process also includes: conditioning the pillow sample to be tested in a set standard atmospheric environment.

[0019] Furthermore, in S5, repeating the test on the same preset sleep posture a preset number of times includes: during each test interval, allowing the pillow sample to be tested to rest and recover its shape, and correcting the contact position between the human body model and the pillow sample to be tested to remain consistent during each test.

[0020] The present invention also provides a pillow support performance testing system, the system being used to perform a pillow support performance testing method as described in any of the preceding claims, the system comprising:

[0021] The sensor device setting module is used to select the corresponding standardized human body model according to the target population of the pillow to be tested, and to deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model.

[0022] The structural correction module is used to correct the key contact areas of the standardized human body model according to the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, so as to obtain the corrected human body model.

[0023] The adjustment module is used to place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to a preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark.

[0024] The data acquisition module is used to continuously collect pressure-related data at each test point through a flexible pressure sensing device.

[0025] The analysis module is used to repeat the test a preset number of times in the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain quantitative indicators of support performance.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] This invention selects a corresponding standardized human body model based on the target population of the pillow to be tested, and deploys flexible pressure sensing devices at key anatomical test points of the standardized human body model. Based on preset sleep postures and the biomechanical characteristics of the human body under the preset sleep postures, the key contact areas of the standardized human body model are structurally modified to obtain a modified human body model. The pillow sample to be tested is placed on a standardized testing platform, and the modified human body model is adjusted to the preset sleep posture. Multi-degree-of-freedom posture compensation fine-tuning is performed on the modified human body model to ensure that the positional relationship between the modified human body model and the pillow sample meets the set benchmark. Pressure-related data at each test point is continuously collected through the flexible pressure sensing devices. Following the above steps, the same preset sleep posture is tested a preset number of times, and the collected pressure-related data is analyzed and calculated to obtain quantitative indicators of support performance. By combining a standardized human body model adapted to the target population with flexible pressure sensing devices at key anatomical points, the targeted nature of pillow support testing and the accuracy of pressure collection are achieved. Structural modification of the key contact areas of the model based on sleep posture and human biomechanics ensures that the test closely resembles the actual contact state of the human body, achieving biomimetic simulation. By standardizing the testing platform, adjusting the posture, and fine-tuning with multi-degree-of-freedom compensation, the contact reference between the model and the pillow-type samples was unified, ensuring the consistency of the tests. Simultaneously, through repeated testing in the same posture and analysis, multi-dimensional quantitative indicators of support performance, such as average pressure, peak pressure, and pressure gradient, were obtained, achieving an objective and quantitative evaluation of the pillow's support performance. Overall, the objective, repeatable, and biomimetic quantitative testing requirements for pillow support performance were met. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a flowchart of a pillow support performance testing method provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a pillow support performance testing system provided in an embodiment of the present invention. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0032] The specific embodiments of the present invention will be described below.

[0033] To address the issue that existing testing methods do not meet testing requirements, this invention selects a standardized human model corresponding to the target population for the pillow being tested, and deploys pressure sensing devices at key anatomical testing points. Based on human biomechanical characteristics, the key contact areas of the standardized human model are structurally modified. The modified human model is adjusted to a preset sleeping posture, and multi-degree-of-freedom posture compensation fine-tuning is performed to ensure that the positional relationship between the modified human model and the pillow sample meets the set benchmark. Pressure-related data at each testing point are continuously collected. The test is repeated a preset number of times in the same preset sleeping posture. The collected pressure-related data is analyzed and calculated to obtain quantitative indicators of support performance, including average pressure, peak pressure, and pressure gradient. The testing method of this invention meets the requirements of objective, repeatable, and biomimetic quantitative testing.

[0034] Example 1

[0035] This invention provides a method for testing the support performance of pillows. Figure 1 This is a flowchart of a pillow support performance testing method provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the specific steps include the following:

[0036] S1. Based on the target population of the pillow to be tested, select the corresponding standardized human body model, and deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model.

[0037] The target audience refers to the specific user group that the pillow product under test is designed and developed for. The body size and physiological characteristics of the target audience serve as the basis for selecting the standardized human body model. The standardized human body model is a fixed-specification test model manufactured according to relevant human body size standards, which can simulate the physical characteristics of the human body during sleep and can be adapted to different target groups. Key anatomical test points refer to characteristic test points that can accurately reflect the support performance of the pillow. Flexible pressure sensing devices are flexible sensing components deployed at the anatomical test points of the model to collect pressure data between the model and the contact surface of the pillow.

[0038] Key anatomical test points include: head anatomical points, neck anatomical points, and shoulder anatomical points. The flexible pressure sensing device includes multiple independent flexible patch-type airbag pressure sensors. Head anatomical points refer to the core bony landmarks corresponding to the standardized human model's head in direct contact with the pillow product, accurately reflecting the head's support force state; these are crucial areas for collecting head support pressure data. Neck anatomical points refer to the core bony landmarks corresponding to the standardized human model's neck in contact with the pillow product; these are key contact areas where the pillow provides neck support, directly related to the accurate collection of neck support force, and are core test points for evaluating neck support performance. Shoulder anatomical points refer to the core bony landmarks corresponding to the standardized human model's shoulder in contact with the pillow product; these are key areas for transmitting shoulder support force, and their pressure data directly reflects the pillow's support effect on the shoulder.

[0039] Due to the significant non-planar, multi-curved anatomical features of the head, neck, and face, especially in the lateral decubitus position where the curvature of areas such as the cheekbone and mandibular angle changes greatly, traditional planar grid array sensors are prone to wrinkles, localized suspensions, or deviations in the force direction of sensing units when conforming to such complex surfaces. This can affect the accuracy and reliability of pressure measurements at critical locations. To overcome this limitation and achieve continuous, dynamic monitoring of pressure at specific anatomical points, a flexible patch-type airbag pressure sensor is employed. This sensor measures the pressure change caused by the enclosed fluid within the flexible airbag. The airbag is completely flexible, perfectly conforming to complex surfaces, and has extremely low stiffness, causing almost no interference with the measurement process. It can directly measure the average pressure over the entire airbag contact area, reflecting the macroscopic sense of support and envelopment force. The flexible patch-type airbag pressure sensor has a diameter no greater than 20 mm and a thickness no greater than 3 mm. Its flexibility allows it to conform to the curved surfaces of the model and the pillow, without deformation interference caused by rigid contact, ensuring the fit of the data acquisition. The patch-like shape makes it small in size and easy to fix, and can be accurately placed at each anatomical test point to achieve accurate single-point pressure acquisition.

[0040] By selecting standardized human models corresponding to the target population to replace real human testing, individual differences between different individuals are eliminated, establishing a unified and fixed benchmark for the testing subject, laying the foundation for the repeatability of subsequent test results. Flexible pressure sensors are precisely deployed at key anatomical testing points, focusing pressure data collection on the core contact area of ​​the pillow support, avoiding indiscriminate collection, and ensuring the targeted and accurate collection of pressure data.

[0041] S2. Based on the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, the key contact areas of the standardized human body model are structurally modified to obtain the modified human body model.

[0042] Preset sleep postures refer to specific body positions that are pre-defined to simulate the actual sleep state of the human body. Examples of preset sleep postures include supine and lateral positions. Human biomechanical characteristics refer to the inherent biomechanical features of the head, neck, and shoulders, such as muscle tension, soft tissue deformation, force distribution, and contour morphology, under specific sleep postures. Key contact areas refer to the areas that directly contact the pillow sample under the preset sleep posture and are crucial for evaluating support performance. Key contact areas include the pelvis, buttocks, chest and back, arms, and ears. Modified human body models refer to test models that more closely resemble the actual human sleep state by structurally adjusting the key contact areas of a standardized human body model based on preset sleep postures and corresponding human biomechanical characteristics.

[0043] Specifically, based on preset sleeping postures and the biomechanical characteristics of the human body under these postures, structural modifications are made to key contact areas of the standardized human body model. These modifications include: if the preset sleeping posture is supine, geometric modifications are made to reduce the thickness of the buttocks area and flatten the ischial tuberosity area; if the preset sleeping posture is lateral, a lateral bulge design is implemented in the greater trochanter area of ​​the femur; the arm structure is biomimeticly designed to adapt to the lateral posture, ensuring the shape of the arm-to-torso contact area conforms to the pressure deformation characteristics of soft tissue in this posture; and a platform-like bulge design is applied to the ear area below the lateral posture. The standardized human body model is also equipped with replacement modules adapted to different cervical spine curvatures.

[0044] The ischial tuberosity region refers to the bony prominence below the buttocks and is a key contact area for the model in a supine position. It needs to be flattened to conform to the soft tissue deformation characteristics of a real person in a supine position. The greater trochanter of the femur refers to the bony prominence on the outer side of the thigh root and is a core contact area for the model in a lateral position. It needs a lateral bulge design to simulate the lateral extension of soft tissue in a real person in a lateral position. The platform-like raised design is a structural correction method for the ear area under the model in a lateral position. By creating planar, micro-raised structures, it simulates the actual support height and contact shape of a real ear under pressure. The cervical spine physiological curvature replacement module refers to the replaceable modular components of the standardized human model. It can adapt to different physiological states of the cervical spine, such as healthy standard curvature, straightening of curvature, and excessive flexion. It is a matching correction structure for the cervical spine characteristics of different groups of people. The cervical spine physiological curvature replacement module adopts a replaceable structure that combines plug-in and snap-on types. Based on the actual height of the pillow to be tested and the target support angle, select the cervical spine physiological curvature replacement module with the corresponding physiological curvature specification. Pull out the original cervical spine physiological curvature replacement module along the disassembly port on the back of the neck of the human model, insert the selected cervical spine physiological curvature replacement module along the cervical axis and lock it in place to complete the replacement of the cervical spine physiological curvature replacement module.

[0045] This embodiment features customized structural modifications for the two core sleep postures of supine and lateral lying. It accurately simulates the soft tissue deformation and skeletal contact patterns in key contact areas of the human body under different sleeping positions, ensuring a high degree of realism in the contact characteristics of the human model. This achieves highly realistic biomimetic simulation of support testing, solving the problem of distortion in traditional rigid models. Through refined structural modifications to key areas such as the buttocks, greater trochanter of the femur, and ears, it restores the real contact patterns and force support characteristics of the human body under different sleeping positions. This ensures that subsequent pressure data collection accurately reflects the actual support performance of the pillow product, improving the authenticity and accuracy of the test data. Furthermore, a replaceable cervical spine physiological curvature replacement module allows the model to adapt to the cervical spine physiological characteristics of different groups. This not only restores sleeping posture but also accommodates the differences in body structure among different groups, expanding the applicability of the testing method and making the test results more consistent with the actual user experience of different target groups.

[0046] S3. Place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to the preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark.

[0047] The pillow sample to be tested refers to the pillow sample that needs to be tested for its support performance. The standardized test platform refers to a special test platform that provides a unified and fixed placement benchmark for the pillow support performance test, and is used to standardize the placement position and posture of the pillow sample to be tested.

[0048] Specifically, the modified human body model undergoes multi-degree-of-freedom posture compensation fine-tuning to ensure that the positional relationship between the modified human body model and the pillow sample under test meets the set benchmarks. This includes: fine-tuning the modified human body model using a multi-degree-of-freedom posture compensation mechanism within the modified human body model to ensure that the positional relationship between the modified human body model and the pillow sample under test meets the set benchmarks. The set benchmarks include: if the preset sleeping posture is supine, the acromion region of the modified human body model contacts the lower edge of the pillow sample under test, and the midline of the sagittal plane of the head coincides with the midline of the pillow sample under test; if the preset sleeping posture is lateral, the lower acromion region of the modified human body model contacts the lower edge of the pillow sample under test, and the lower tragus point of the modified human body model coincides with the midline of the pillow sample under test. The set benchmarks also include: maintaining a preset neutral posture for the cervical spine of the modified human body model.

[0049] A multi-degree-of-freedom posture compensation mechanism refers to a drive and adjustment component installed inside the corrected human body model, enabling multi-dimensional adjustments; it is the execution structure for fine-tuning posture. A set reference refers to pre-defined standard posture and positional conditions used to unify the relative positional relationship between the corrected human body model and the pillow-like specimen under test. The acromion region refers to the bony landmark area of ​​the shoulder of the corrected human body model, serving as the reference contact point in supine and lateral positions. The sagittal midline of the head refers to the central symmetry line of the head along the sagittal plane of the corrected human body model. The tragus point refers to the anterior apex of the tragus in the external ear, a location point with a clear anatomical landmark on the side of the head. The preset neutral posture of the cervical spine refers to a pre-set neutral position of the cervical spine that conforms to the physiological state of the human body, serving as the standard posture reference for the cervical spine.

[0050] By modifying the multi-degree-of-freedom posture compensation mechanism within the modified human body model, multi-dimensional fine-tuning is performed on the model to ensure that the positional relationship between the model and the pillow sample under test conforms to the set benchmark. In the supine position, the acromion region of the modified human body model must be in contact with the lower edge of the pillow sample, and the midline of the head in the sagittal plane must coincide with the midline of the sample. In the lateral position, the lower acromion region of the modified human body model must be in contact with the lower edge of the pillow sample, and the lower tragus point must coincide with the midline of the sample. Simultaneously, regardless of the posture, the cervical spine of the modified human body model must maintain a preset neutral posture. This multi-degree-of-freedom posture compensation mechanism enables multi-dimensional fine-tuning, accurately compensating for differences in size and shape among different pillow samples, ensuring consistent relative position in each test.

[0051] Based on the above embodiments, before placing the pillow sample to be tested on the standardized testing platform, the method further includes: conditioned the pillow sample to be tested in a set standard atmospheric environment.

[0052] Before placing the pillow samples to be tested on the standardized testing platform, they are pre-conditioned in a set standard atmospheric environment for 24 hours to ensure that the humidity of the pillow samples reaches a uniform standard. This eliminates the influence of environmental humidity differences on the sample morphology and mechanical properties, ensures the consistency of the initial state of the samples, and improves the repeatability and comparability of the test results.

[0053] S4. Continuously collect pressure-related data at each test point using a flexible pressure sensing device.

[0054] By utilizing flexible pressure sensors pre-installed at key anatomical test points on a standardized human model, pressure-related data at each test point is continuously and uninterruptedly collected under a pre-defined test condition where the human model and the pillow sample are in a set baseline state. This enables continuous acquisition of pressure data during pillow support performance testing, ensuring the integrity and real-time nature of the acquired data.

[0055] S5. Following S3-S4, repeat the test a preset number of times for the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain the quantitative indicators of support performance; among which, the quantitative indicators of support performance include average pressure, pressure peak, pressure gradient, pressure concentration, and comfort contact ratio.

[0056] The quantitative indicators of support performance refer to the quantitative parameters used to objectively evaluate the support performance of pillows. They are obtained by analyzing and calculating the collected pressure-related data. Average pressure refers to the statistical average of pressure data from each test point, reflecting the overall support level of the pillow. Peak pressure refers to the maximum pressure value collected at each test point, reflecting the local pressure limit of the pillow. Pressure gradient refers to the rate of pressure change between adjacent test points, reflecting the uniformity of the pillow's support. Pressure concentration is equal to the peak pressure divided by the average pressure. The closer this value is to 1, the more uniform the pressure distribution and the better the support performance; the larger the value, the more concentrated the pressure is at a few points, indicating uneven support. Comfort contact ratio refers to the range of comfortable pressure in different areas determined through a combination of numerous subjective and objective tests. The comfort contact ratio is directly used to calculate the proportion of the area within the comfortable pressure range, directly reflecting the pillow's support and fit.

[0057] Specifically, the test is repeated a preset number of times for the same preset sleep posture, including: during each test interval, the pillow sample to be tested is left to stand still to restore its shape, and the contact position between the human model and the pillow sample is corrected to remain consistent during each test. The preset number of tests can be 3.

[0058] By allowing the pillow samples to stand still at test intervals, their initial shape is restored, eliminating the deformation effects of previous tests and ensuring consistent sample condition for each test. Maintaining consistent contact positions in each test ensures uniform testing conditions for repeated tests, further improving the accuracy of test results. This embodiment analyzes and obtains multi-dimensional quantitative indicators such as average pressure, peak pressure, and pressure gradient, ensuring that the test data comprehensively and accurately reflects the pillow's support effect on key support areas, providing a comprehensive and objective basis for product comfort.

[0059] This embodiment selects a standardized human body model corresponding to the target population of the pillow to be tested, and deploys flexible pressure sensing devices at key anatomical test points of the standardized human body model. Based on preset sleep postures and the biomechanical characteristics of the human body under the preset sleep postures, the key contact areas of the standardized human body model are structurally modified to obtain a modified human body model. The pillow sample to be tested is placed on a standardized testing platform, the modified human body model is adjusted to the preset sleep posture, and multi-degree-of-freedom posture compensation fine-tuning is performed on the modified human body model to ensure that the positional relationship between the modified human body model and the pillow sample meets the set benchmark. Pressure-related data at each test point are continuously collected through the flexible pressure sensing devices. Following the above steps, the same preset sleep posture is tested a preset number of times, and the collected pressure-related data is analyzed and calculated to obtain quantitative indicators of support performance. These quantitative indicators include average pressure, peak pressure, and pressure gradient. By combining a standardized human body model adapted to the target population with flexible pressure sensing devices at key anatomical points, the targeted nature of pillow support testing and the accuracy of pressure acquisition are achieved. Structural modification of the key contact areas of the model based on sleep postures and human biomechanics ensures that the test closely resembles the actual contact state of the human body, achieving biomimetic simulation. By standardizing the testing platform, adjusting the posture, and fine-tuning with multi-degree-of-freedom compensation, the contact reference between the model and the pillow-type samples was unified, ensuring the consistency of the tests. Simultaneously, through repeated testing in the same posture and analysis, multi-dimensional quantitative indicators such as average pressure, peak pressure, and pressure gradient were obtained, achieving an objective and quantitative evaluation of the pillow's support performance. Overall, the objective, repeatable, and biomimetic quantitative testing requirements for pillow support performance were met.

[0060] Example 2

[0061] This invention also provides a pillow support performance testing system. Figure 2 This is a schematic diagram of the structure of a pillow support performance testing system provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the system includes:

[0062] The sensor device setting module is used to select the corresponding standardized human body model according to the target population of the pillow to be tested, and to deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model.

[0063] The structural correction module is used to correct the key contact areas of the standardized human body model according to the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, so as to obtain the corrected human body model.

[0064] The adjustment module is used to place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to a preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark.

[0065] The data acquisition module is used to continuously collect pressure-related data at each test point through a flexible pressure sensing device.

[0066] The analysis module is used to repeat the test a preset number of times in the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain quantitative indicators of support performance.

[0067] The pillow support performance testing system provided in this embodiment is used to perform the pillow support performance testing method in any of the above embodiments, and has the beneficial effects of any of the above embodiments, which will not be repeated here.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A method for testing the support performance of pillows, characterized in that, include: S1. Based on the target population of the pillow to be tested, select the corresponding standardized human body model and deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model. S2. Based on the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, the key contact areas of the standardized human body model are structurally modified to obtain the modified human body model. Key contact areas include the pelvis, hips, chest and back, arms, and ears. Based on preset sleep postures and the biomechanical characteristics of the human body under preset sleep postures, structural modifications are made to key contact areas of standardized human models, including: If the default sleeping posture is supine, the thickness of the buttocks area of ​​the standardized human model is reduced by geometric correction, and the ischial tuberosity area is flattened. If the default sleeping posture is the side-lying posture, the femoral greater trochanter region of the standardized human body model is designed with lateral bulging, the arm structure of the standardized human body model is designed with biomimetic features to adapt to the side-lying posture of the human body, so that the shape of the part of the arm that contacts the torso conforms to the pressure deformation characteristics of the human soft tissue under this posture, and the ear area below the standardized human body model is designed with a platform-like bulge when lying on the side. S3. Place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to the preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark. This includes fine-tuning the modified human body model with multi-degree-of-freedom posture compensation to ensure that the positional relationship between the modified human body model and the pillow-like specimen under test meets the set benchmark, including: The modified human body model is finely adjusted by modifying the multi-degree-of-freedom posture compensation mechanism inside the modified human body model so that the positional relationship between the modified human body model and the pillow-type sample under test meets the set reference. The set criteria include: if the preset sleep posture is supine, the acromion region of the human model is corrected to contact the lower edge of the pillow sample to be tested, and the midline of the sagittal plane of the head coincides with the midline of the pillow sample to be tested; if the preset sleep posture is lateral, the lower acromion region of the human model is corrected to contact the lower edge of the pillow sample to be tested, and the lower tragus point of the human model coincides with the midline of the pillow sample to be tested. S4. Continuously collect pressure-related data at each test point using a flexible pressure sensing device; S5. Following S3-S4, repeat the test a preset number of times for the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain quantitative indicators of support performance.

2. The pillow support performance testing method according to claim 1, characterized in that, Key anatomical test points for standardized human models include: head anatomical points, neck anatomical points, and shoulder anatomical points.

3. The pillow support performance testing method according to claim 1, characterized in that, The flexible pressure sensing device includes multiple independent flexible patch-type airbag pressure sensors.

4. The pillow support performance testing method according to claim 1, characterized in that, The standardized human body model is equipped with a replacement module that adapts to different physiological curvatures of the cervical spine.

5. The pillow support performance testing method according to claim 1, characterized in that, The benchmark setting also includes: correcting the cervical spine of the human model to maintain a preset neutral posture.

6. The method for testing the support performance of pillows according to claim 1, characterized in that, Before placing the pillow sample to be tested on the standardized testing platform, the following steps are also included: The pillow samples to be tested were conditioned in a standard atmospheric environment.

7. The method for testing the support performance of pillows according to claim 1, characterized in that, In step S5, repeating the test on the same preset sleep posture a preset number of times includes: During each test interval, the pillow sample to be tested was left to stand to restore its shape, and the contact position between the human model and the pillow sample was adjusted to be consistent during each test.

8. A pillow support performance testing system, characterized in that, The system is used to perform the pillow support performance testing method according to any one of claims 1-7, the system comprising: The sensor device setting module is used to select the corresponding standardized human body model according to the target population of the pillow to be tested, and to deploy flexible pressure sensing devices at the key anatomical test points of the standardized human body model. The structural correction module is used to correct the key contact areas of the standardized human body model according to the preset sleep posture and the biomechanical characteristics of the human body under the preset sleep posture, so as to obtain the corrected human body model. The adjustment module is used to place the pillow sample to be tested on a standardized testing platform, adjust the modified human body model to a preset sleeping posture, and perform multi-degree-of-freedom posture compensation fine-tuning on the modified human body model so that the positional relationship between the modified human body model and the pillow sample to be tested meets the set benchmark. The data acquisition module is used to continuously collect pressure-related data at each test point through a flexible pressure sensing device. The analysis module is used to repeat the test a preset number of times in the same preset sleep posture, analyze and calculate the collected pressure-related data, and obtain quantitative indicators of support performance.

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