CN-122016291-A - Pillow bearing performance test method and system

CN122016291ACN 122016291 ACN122016291 ACN 122016291ACN-122016291-A

Abstract

The invention provides a method and a system for testing the bearing performance of pillows, and relates to the technical field of pillow detection. Aiming at the problem that the testing method in the prior art does not meet the testing requirement, the method comprises the steps of selecting a corresponding standardized human model according to the pillow target crowd to be tested, arranging a pressure sensing device at a key anatomical test point, carrying out structural correction on a key contact area of the standardized human model according to the biomechanical characteristics of a human body, adjusting the corrected human model to a preset sleeping posture, carrying out multi-degree-of-freedom posture compensation fine adjustment so that the position relation between the corrected human model and a pillow sample to be tested meets a set standard, continuously collecting pressure related data of each test point, repeatedly testing the same preset sleeping posture for preset times, analyzing and calculating the collected pressure related data, and obtaining a quantitative index of bearing performance, wherein the quantitative index comprises average pressure, pressure peak value and pressure gradient. The test method provided by the invention meets the requirements of objective, repeatable and bionic quantitative tests.

Inventors

SHAO WANYAN
DI HONGJING
REN YIJIA
CHU LU

Assignees

江苏省纺织产品质量监督检验研究院

Dates

Publication Date: 20260512
Application Date: 20260410

Claims (10)

1. The method for testing the bearing performance of the pillow is characterized by comprising the following steps of: S1, selecting a corresponding standardized human body model according to target people of pillows to be detected, and arranging a flexible pressure sensing device at key anatomy test points of the standardized human body model; s2, carrying out structural correction on the key contact area of the standardized human body model according to the preset sleep posture and the human body biomechanical characteristics under the preset sleep posture to obtain a corrected human body model; S3, placing the pillow sample to be tested on a standardized test platform, adjusting the corrected human body model to a preset sleep posture, and performing multi-degree-of-freedom posture compensation fine adjustment on the corrected human body model so that the position relationship between the corrected human body model and the pillow sample to be tested meets a set reference; S4, continuously collecting pressure related data of each test point through a flexible pressure sensing device; s5, repeating the test for the same preset sleeping posture for preset times according to the steps S3-S4, and analyzing and calculating the collected pressure related data to obtain the quantitative index of the bearing performance.
2. The method of claim 1, wherein the key anatomical points of the standardized manikin comprise a head anatomical point, a neck anatomical point, and a shoulder anatomical point.
3. The method of claim 1, wherein the flexible pressure sensing device comprises a plurality of individual flexible patch-type balloon pressure sensors.
4. The method for testing the bearing performance of pillows according to claim 1, wherein the key contact areas comprise pelvis, hip, chest back, arms and ear areas, and the step S2 of structurally correcting the key contact areas of the standardized manikin according to the preset sleep posture and the biomechanical characteristics of the human body in the preset sleep posture comprises: if the preset sleeping posture is a supine posture, performing geometric correction of reduced thickness on the hip area of the standardized human body model, and performing flattening treatment on the osteotuberosity area; If the preset sleeping posture is a lateral lying posture, performing lateral bulging design on a femur greater trochanter region of the standardized human body model, performing bionic design adapting to the lateral lying posture of the human body on an arm structure of the standardized human body model, enabling the form of a contact part of the arm and the trunk to conform to the compression deformation characteristics of human body soft tissues under the lateral lying posture, and performing platform bulging design on an ear region below the lateral lying state of the standardized human body model.
5. The method of claim 4, wherein the standardized manikin is configured with replacement modules that adapt to different physiological curvatures of the cervical spine.
6. The method for testing the bearing performance of pillows according to claim 1, wherein in S3, performing multi-degree-of-freedom posture compensation fine adjustment on the corrected phantom so that the positional relationship between the corrected phantom and the pillow sample to be tested satisfies a set reference, comprises: The correction human body model is finely adjusted through a multi-degree-of-freedom posture compensation mechanism in the correction human body model, so that the position relation between the correction human body model and the pillow sample to be tested meets the set standard; The setting of the standard comprises the steps of correcting the shoulder area of the human body model to be in contact with the lower edge of the pillow sample to be tested if the preset sleeping posture is a supine posture, enabling the sagittal plane central line of the head to be coincident with the central line of the pillow sample to be tested, and correcting the lower side shoulder area of the human body model to be in contact with the lower edge of the pillow sample to be tested if the preset sleeping posture is a lateral posture, and enabling the lower side ear screen point of the human body model to be coincident with the central line of the pillow sample to be tested.
7. The method of claim 6, wherein setting the reference further comprises correcting the cervical spine of the manikin to maintain a pre-set neutral posture.
8. The method for testing the bearing performance of pillows according to claim 1, further comprising, before placing the pillow sample to be tested on the standardized test platform: And (3) humidifying the pillow sample to be tested in a set standard atmosphere environment.
9. The method for testing the bearing performance of pillows according to claim 1, wherein in S5, the repeated test is performed for the same preset sleeping posture for a preset number of times, including: And standing the pillow sample to be tested during each test interval to restore the shape, and correcting the contact position of the human body model and the pillow sample to be tested to be consistent during each test.
10. A pillow support performance testing system for performing the pillow support performance testing method of any one of claims 1-9, the system comprising: The sensing device setting module is used for selecting a corresponding standardized human body model according to target people of the pillow to be detected, and arranging a flexible pressure sensing device at a key anatomical test point of the standardized human body model; the structure correction module is used for carrying out structure correction on the key contact area of the standardized human body model according to the preset sleep posture and the human body biomechanical characteristics under the preset sleep posture to obtain a corrected human body model; The adjusting module is used for placing the pillow sample to be tested on the standardized test platform, adjusting the corrected human body model to a preset sleep posture, and performing multi-degree-of-freedom posture compensation fine adjustment on the corrected human body model so that the position relationship between the corrected human body model and the pillow sample to be tested meets a set reference; the acquisition module is used for continuously acquiring pressure related data of each test point through the flexible pressure sensing device; The analysis module is used for repeatedly testing the same preset sleeping posture for preset times, and analyzing and calculating the collected pressure related data to obtain the quantitative index of the bearing performance.

Description

Pillow bearing performance test method and system Technical Field The invention relates to the technical field of pillow detection, in particular to a pillow bearing performance test method and system. Background The pillow product is used as one of the beds which are in contact with the human body for the longest time, and the bearing performance of the pillow product directly influences the stress state of the head, neck and shoulders of the human body, and even relates to sleeping quality and spinal health. The pillow bearing performance test provides objective data support for research and development, design and quality classification of pillow products, and is a key technical link of research and development production and quality control links of pillow products. At present, the test methods for the bearing performance of pillows in the industry are mainly divided into three types, namely a subjective test sleep evaluation method, a rigid pressure head simulation test method and a flexible pressure pad test method. The subjective test sleeping evaluation method is used for collecting qualitative evaluation of the neck supporting sense and the overall supporting comfort of the subjects in a subjective questionnaire form through recruiting real human subjects to test sleeping of pillow products to be tested, so as to judge the supporting performance of the pillow. The rigid pressure head simulating test method adopts ball, cylinder and other rigid pressure heads to simulate the head and neck of human body, and pressure sensor to measure the pressure data of the contact surface between the pressure head and pillow product to characterize the bearing performance. The flexible pressure pad test method is characterized in that a planar flexible pressure pad is laid on the surface of a pillow product, a person lies on the pressure pad, contact pressure distribution is collected through the pressure pad, and the bearing performance of the pillow product is analyzed. In the prior art, the pillow bearing performance test method is not combined with the sleep posture and the human biomechanics to carry out bionic simulation design, and lacks standardized posture control and calibration means, so that the deviation of multiple test results is large, the repeatability and the comparability are poor, meanwhile, the evaluation index is single or only qualitative description, objective and accurate quantitative evaluation cannot be realized, and the objective, repeatable and bionic quantitative test requirements of the pillow bearing performance are difficult to be achieved as a whole. Therefore, developing a pillow bearing performance test method and system has important significance for meeting the requirements of objective, repeatable and bionic quantitative tests of pillow bearing performance. Disclosure of Invention Aiming at the problem that the test method in the prior art does not meet the test requirement, the invention provides a test method for the bearing performance of pillows, which specifically comprises the following steps: S1, selecting a corresponding standardized human body model according to target people of pillows to be detected, and arranging a flexible pressure sensing device at key anatomy test points of the standardized human body model; s2, carrying out structural correction on the key contact area of the standardized human body model according to the preset sleep posture and the human body biomechanical characteristics under the preset sleep posture to obtain a corrected human body model; S3, placing the pillow sample to be tested on a standardized test platform, adjusting the corrected human body model to a preset sleep posture, and performing multi-degree-of-freedom posture compensation fine adjustment on the corrected human body model so that the position relationship between the corrected human body model and the pillow sample to be tested meets a set reference; S4, continuously collecting pressure related data of each test point through a flexible pressure sensing device; s5, repeating the test for the same preset sleeping posture for preset times according to the steps S3-S4, and analyzing and calculating the collected pressure related data to obtain the quantitative index of the bearing performance. Further, the key anatomical points of the standardized manikin include head anatomical points, neck anatomical points, and shoulder anatomical points. Further, the flexible pressure sensing device includes a plurality of individual flexible patch-type balloon pressure sensors. In the S2, the key contact area of the standardized human model is structurally modified according to a preset sleeping posture and human biomechanics characteristics under the preset sleeping posture, wherein the key contact area comprises geometric modification for reducing the thickness of the buttock area of the standardized human model and flattening the seated tuberosity area if the preset sleeping posture i