Method and system for testing wearing comfort of wearable device

Abstract

The invention relates to the field of wearable devices, in particular to a method and system for testing the wearing comfort of a wearable device. The testing method is applied to a testing system for the wearing comfort of the wearable equipment, the testing system for the wearing comfort of the wearable equipment comprises a head module assembly and a torque testing device, the torque testing device comprises a torque sensor, an angle sensor and a driving part, the torque sensor is arranged at a target position, and the torque testing device is used for being detachably connected with the head module assembly. The driving part is used for driving the head mold assembly to rotate on the pitch axis, and the angle sensor is used for acquiring the pitch angle of the head mold assembly; the method comprises the following steps: wearing a target wearable device on a head module assembly; the torque testing device is controlled to drive the head mold assembly to rotate on the pitch axis, the torque applied to the target position by the target wearable device is obtained under the condition that the actual pitch angle of the head mold assembly meets the first preset condition, and the torque represents the wearing comfort of the target wearable device.

Description

Technical Field

[0001] The present disclosure relates to the field of wearable devices, and more specifically, to a method and system for testing the wearing comfort of a wearable device. Background Art

[0002] With the rapid development of technology, wearable devices have become increasingly popular and deeply integrated into daily life and professional fields. Smart glasses, augmented reality (AR) / virtual reality (VR) headsets, and headphones not only occupy a significant position in the consumer electronics market but also show broad application prospects in industries such as healthcare, industrial manufacturing, and education and training. As their functions become increasingly complex, user experience requirements are also constantly improving. In particular, wearing comfort, stability, and long-term reliability have become key indicators of product quality.

[0003] However, current torque testing methods for wearable devices still have significant flaws. For example, each test requires manual angle adjustment, which often exhibits some deviation, resulting in low test accuracy and repeatability, making it impossible to provide reliable data support for design optimization. Furthermore, manual operation is inefficient, making it difficult to meet the needs of large-scale, standardized testing, and thus becoming a bottleneck in product development and quality control. Summary of the Invention

[0004] An objective of the present disclosure is to provide a method and system for testing the wearing comfort of a wearable device, which can solve the problems of poor accuracy and low efficiency when testing the torque of a wearable device on the human body.

[0005] According to a first aspect of the present disclosure, a method for testing the wearing comfort of a wearable device is provided, which is applied to a system for testing the wearing comfort of a wearable device. The system comprises a head mold assembly and a torque testing device, wherein the torque testing device comprises a torque sensor, an angle sensor, and a driving unit. The torque sensor is disposed at a target position, the torque testing device is configured to be detachably connected to the head mold assembly, the driving unit is configured to drive the head mold assembly to rotate on a pitch axis, and the angle sensor is configured to obtain a pitch angle of the head mold assembly. The method comprises: Wearing the target wearable device on the head mold assembly; The torque testing device is controlled to drive the head mold assembly to rotate on the pitch axis, and when the actual pitch angle of the head mold assembly meets the first preset condition, the torque applied by the target wearable device to the target position is obtained, and the torque is used to characterize the wearing comfort of the target wearable device.

[0006] According to a second aspect of the present disclosure, a system for testing the wearing comfort of a wearable device is provided, comprising a processor, a memory, a head mold assembly, and a torque testing device, wherein the torque testing device comprises a torque sensor, an angle sensor, and a driving unit, the torque sensor being arranged at a target position, the torque testing device being used to be detachably connected to the head mold assembly, the driving unit being used to drive the head mold assembly to rotate on a pitch axis, the angle sensor being used to obtain the pitch angle of the head mold assembly, the memory storing computer instructions, and the method described in the first aspect being implemented when the computer instructions are executed by the processor.

[0007] One of the technical effects of the present disclosure is that it provides a method for testing the wearing comfort of a wearable device. By adopting a wearable device wearing comfort testing system including a head mold assembly and a torque testing device, an automated and high-precision test of the torque of a target wearable device is achieved. The head mold assembly is automatically driven to rotate on the pitch axis by a driving unit, and the actual pitch angle is obtained in real time based on the angle sensor. When the first preset condition is met, the torque applied by the target wearable device to the target position can be accurately collected to obtain a quantitative index characterizing the wearing comfort, helping product developers to effectively evaluate the wearing comfort of the wearable device. At the same time, the deviation caused by manual adjustment of the angle is effectively avoided, and the accuracy and repeatability of the test results are significantly improved. At the same time, the detachable connection structure and the automated testing process improve the test efficiency, meet the needs of large-scale, standardized testing, and provide reliable data support for the design optimization and quality control of wearable devices.

[0008] Other features and advantages of the embodiments of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0010] Figure 1 is a schematic diagram of a torque testing device according to an embodiment of the present disclosure; Figure 2 is another schematic diagram of a torque testing device according to an embodiment of the present disclosure; Figure 3 is a schematic diagram of a calibration component according to an embodiment of the present disclosure; Figure 4 is a schematic diagram of a testing unit according to an embodiment of the present disclosure; Figure 5 is a schematic diagram of the connection between a test portion and a calibration component according to an embodiment of the present disclosure; Figure 6is a cross-sectional view of the connection between a test portion and a calibration piece according to an embodiment of the present disclosure; Figure 7 is a flow chart of a method for testing wearing comfort of a wearable device according to an embodiment of the present disclosure; Figure 8 4 is a schematic diagram of the structure of a wearable device wearing comfort testing system according to an embodiment of the present disclosure.

[0011] Description of reference numerals: 1. Base; 2. Transmission unit; 21. Connecting shaft; 22. Mounting bracket; 23. Limit bracket; 3. Calibration part; 31. Limit groove; 32. Assembly port; 4. Testing unit; 41. Connecting part; 411. Guide groove; 5. Torque sensor; 6. Adjustment part; 7. Drive unit; 71. Motor; 72. Reducer; 8. Angle sensor; 9. Controller. DETAILED DESCRIPTION

[0012] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0013] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0014] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0015] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0016] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0017] It should be noted that all actions of acquiring signals, information or data in the embodiments of the present disclosure are performed in compliance with the corresponding data protection laws and policies of the country where they are located and with the authorization given by the owner of the corresponding device.

[0018] In an example of this embodiment, a method for testing the wearing comfort of a wearable device is provided, which is applied to a testing system for the wearing comfort of a wearable device. The testing system for the wearing comfort of a wearable device includes a head mold assembly and a torque testing device. The torque testing device includes a torque sensor, an angle sensor and a driving unit. The torque sensor is arranged at a target position. The torque testing device is used to detachably connect the head mold assembly. The driving unit is used to drive the head mold assembly to rotate on the pitch axis. The angle sensor is used to obtain the pitch angle of the head mold assembly.

[0019] In one example of this embodiment, the torque testing device is used to accurately calibrate and test the torque value of the torque sensor 5. Figure 1 and Figure 2 As shown, the torque testing device provided in this embodiment includes: Base 1; A transmission part 2, the transmission part 2 being rotatably mounted on the base 1; A calibration member 3 and a test unit 4, wherein the test unit 4 is connected to the transmission unit 2 and can rotate synchronously with the transmission unit 2, and the test unit 4 has a connecting member 41, and the calibration member 3 forms a detachable connection with the connecting member 41; The torque sensor 5 is connected to the transmission part 2 and is configured to collect the torque value generated from the center of gravity of the calibration part 3 to the center of the rotation axis of the transmission part 2 when the test part 4 rotates to a preset angle following the transmission part 2.

[0020] like Figure 1 and Figure 2 As shown, base 1 serves as the fundamental support component of the entire torque tester. It can be made of a high-strength, high-stability metal material, such as stainless steel. The surface of base 1 can be finely processed to ensure its flatness, providing a good reference surface for the installation of other components such as the transmission unit 2. Furthermore, mounting holes can be provided at each of the four corners of base 1, allowing base 1 to be securely fixed to a workbench using bolts or other fasteners to enhance the stability of the device.

[0021] Transmission unit 2 can utilize a high-precision rotating shaft structure made of high-quality alloy steel with high strength and wear resistance. The rotating shaft can be mounted on base 1 via a pair of high-precision tapered roller bearings. The inner ring of the bearings fits tightly against the rotating shaft, while the outer ring of the bearings provides an interference fit with the bearing seat hole on base 1. This ensures the rotating shaft can rotate smoothly and flexibly while effectively bearing axial and radial loads, thereby ensuring transmission reliability.

[0022] like Figure 1 and Figure 2As shown, the test unit 4 is connected to the output end of the transmission unit 2 so that it can rotate synchronously with the transmission unit 2. The test unit 4 can be composed of a connecting arm and a connecting member 41. The connecting arm is made of a lightweight, high-strength aluminum alloy material. One end of the connecting arm is fixedly connected to the transmission unit 2 by a bolt, and the other end is provided with a connecting member 41. The connecting member 41 can be a sliding structure with an external thread. The external thread specifications of the connecting member 41 match the internal thread on the calibration member 3, so as to form a detachable connection with the calibration member 3.

[0023] The shape and size of the connecting arm are carefully designed to ensure that during the test, the center of gravity of the calibration piece 3 and the axis of rotation of the transmission part 2 can maintain an appropriate distance, thereby generating a torque value that meets the requirements.

[0024] The shape and weight of the calibration piece 3 can be designed according to actual calibration requirements to simulate the head-mounted device and head mold assembly for the torque to be measured. Specifically, the calibration piece 3 can be provided with an internal thread that cooperates with the external thread of the connector 41 of the test section 4 to achieve a detachable connection; the calibration piece 3 can also be provided with a groove that cooperates with the protrusion of the connector 41 of the test section 4 to achieve a detachable connection. In this way, by replacing the calibration piece 3 with a different weight or different center of gravity position, different torque conditions can be simulated, thereby meeting diverse calibration requirements.

[0025] The target location can be Figure 1 and Figure 2 As shown, it is set at a position corresponding to the human neck so as to test the torque of the wearable device on the user's neck at different pitch angles. The output end of the transmission part 2 is connected to the torque sensor 5 so as to transmit the torque generated during the rotation process to the torque sensor 5 for measurement. In this way, the torque sensor 5 can collect the torque value generated from the center of gravity of the calibration piece 3 to the axis of rotation of the transmission part 2 when the test part 4 follows the transmission part 2 to rotate to a preset angle. By replacing calibration pieces 3 of different specifications or changing the preset angle multiple times, a comprehensive torque calibration work can be carried out, providing accurate data support for the torque calibration of the torque sensor 5. Among them, the preset angle is the preset rotation angle of the driving part 7.

[0026] The test section 4 is provided with a connector 41, with the calibration member 3 forming a detachable connection thereto. This design allows the user to conveniently and quickly replace calibration members 3 of varying specifications, weights, or shapes to meet different calibration requirements. For example, when performing low-torque calibration, a lighter calibration member 3 can be selected; when performing high-torque calibration, a heavier calibration member 3 can be used. Furthermore, calibration members 3 of varying shapes can simulate different center of gravity positions, thereby meeting diverse torque simulation requirements and improving the versatility and flexibility of the device.

[0027] Among them, the torque sensor 5 can be connected to the output shaft of the transmission part 2 through a coupling. When the transmission part 2 drives the test part 4 and the calibration part 3 to rotate, the center of gravity of the calibration part 3 will generate a torque around the axis of the rotation axis of the transmission part 2, and this torque will cause the elastic shaft inside the torque sensor 5 to elastically deform. A resistance strain gauge is attached to the elastic shaft, and the resistance value of the strain gauge will change with the deformation of the elastic shaft. By measuring the change in the resistance value of the strain gauge and converting it into an electrical signal, and then amplifying, filtering and other processing by the signal processing circuit, a voltage signal proportional to the torque value can be finally obtained. This voltage signal can be transmitted to an external display instrument or data acquisition system to realize real-time display and recording of the torque value.

[0028] In another example, the torque sensor 5 can also be set to other target positions of the test fixture based on the same connection method to correspond to the torque of the wearable device on other positions of the human body.

[0029] During calibration, a calibration piece 3 of known weight is mounted at a predetermined position on the connector 41 of the test unit 4. As the transmission unit 2 rotates the test unit 4 and calibration piece 3, the center of gravity of calibration piece 3 generates a torque around the axis of rotation of the transmission unit 2. The torque value measured by the torque sensor 5 is then stored and recorded. Calibration of the torque sensor 5 is achieved by adjusting the rotation angle of the transmission unit 2, which drives the test unit 4 and calibration piece 3.

[0030] After a period of use, a calibration piece 3 of known weight is installed at a predetermined position on the connecting piece 41 of the test unit 4. When the transmission unit 2 drives the test unit 4 and the calibration piece 3 to rotate together, the center of gravity of the calibration piece 3 generates a torque value around the axis of rotation of the transmission unit 2. The torque value measured by the torque sensor 5 is then compared with the pre-stored known torque value. The accuracy of the torque sensor 5 can be determined by comparing the two.

[0031] Optionally, the calibration member 3 has a limiting groove 31 , and the limiting groove 31 is engaged with the connecting member 41 .

[0032] like Figure 3 and Figure 4 As shown, when installing the calibration member 3, the stopper groove 31 provides a clear positioning guide for the calibration member 3. The operator simply aligns the stopper groove 31 of the calibration member 3 with the connector 41, then gently pushes or rotates the calibration member 3 until the connector 41 engages the stopper groove 31, completing the installation process. This rapid positioning and installation method significantly shortens installation time and improves work efficiency, making it particularly suitable for scenarios where the calibration member 3 needs to be frequently replaced for calibration under different torque conditions.

[0033] In addition, during the torque calibration process, the calibration member 3 needs to rotate synchronously with the test unit 4 and the transmission unit 2 to generate an accurate torque value. In this design, the structure in which the limit groove 31 and the connector 41 are engaged can limit the relative rotation between the calibration member 3 and the connector 41 through mechanical engagement. The shape and size of the limit groove 31 precisely match the connector 41. When the connector 41 is engaged with the limit groove 31, a tight engagement is formed between the two, allowing the calibration member 3 to always remain synchronized with the connector 41 during rotation, thereby ensuring the stability and accuracy of torque transmission.

[0034] In addition, the side walls of the limiting groove 31 can also play a certain blocking role on the connecting piece 41. When the calibration piece 3 is subjected to axial force, the interaction force between the connecting piece 41 and the side walls of the limiting groove 31 will prevent the axial movement of the calibration piece 3, thereby ensuring the position stability of the calibration piece 3 in the axial direction, thereby improving the accuracy of torque calibration.

[0035] Optionally, an adjusting member 6 is included, the calibration member 3 has an assembly opening 32 , the adjusting member 6 passes through the assembly opening 32 and is connected to the connecting member 41 , and the adjusting member 6 is used to fix the calibration member 3 at a preset position of the connecting member 41 .

[0036] like Figures 3 to 6 As shown, when installing the calibration member 3, the operator only needs to align the assembly opening 32 of the calibration member 3 with the corresponding position on the connecting member 41, then insert the adjustment member 6, such as an indexing pin or a knob, and tighten it to complete the installation. When removing the calibration member 3, the operator only needs to loosen the adjustment member 6 to remove the calibration member 3 from the connecting member 41. This convenient installation and removal method greatly shortens the operation time, reduces the operator's labor intensity, and improves work efficiency.

[0037] During the torque calibration process, the center of gravity position of the calibration member 3 is crucial for accurately measuring the torque value. By setting the adjustment member 6 to cooperate with the assembly opening 32 of the calibration member 3 and the connecting member 41, the calibration member 3 can be accurately fixed at a preset position on the connecting member 41. The operator can accurately install the calibration member 3 at a specific position of the connecting member 41 through the adjustment member 6 according to different calibration requirements and torque working conditions to ensure that the distance between the center of gravity of the calibration member 3 and the axis of rotation of the transmission part 2 reaches the theoretical design value. This precise positioning enables the test part 4 to generate an accurate and expected torque value when the test part 4 rotates with the transmission part 2, thereby improving the accuracy of the torque calibration.

[0038] Furthermore, the rotation of the test unit 4 and calibration member 3 by the transmission unit 2 generates a certain amount of vibration and centrifugal force. Passing the adjustment member 6 through the assembly opening 32 and tightly connecting it to the connector 41 securely fixes the calibration member 3 in its preset position, resisting the effects of vibration and centrifugal force and preventing it from shifting. This ensures the stability of the calibration member 3's position even during long, high-frequency calibration operations, providing reliable support for torque calibration.

[0039] Optionally, the connecting member 41 is provided with a guide groove 411 , and the calibration member 3 is slidably connected to the guide groove 411 .

[0040] like Figure 3 and Figure 4 As shown, the guide groove 411 can be a rectangular groove to facilitate a sliding fit with the protrusion in the calibration member 3. By providing the calibration member 3 with a sliding connection to the guide groove 411, its installation and removal process becomes very convenient. When installing the calibration member 3, the operator only needs to align it with the entrance of the guide groove 411 and then gently push it to slide it into the guide groove 411 and reach the designated position. When removing, the calibration member 3 can be pulled out by simply pulling it along the direction of the guide groove 411.

[0041] Thus, the guide groove 411 provides a precise movement track for the calibration member 3, allowing it to slide along a predetermined path. During torque calibration, the guide groove 411 allows the operator to accurately move the calibration member 3 to the desired position, ensuring that its center of gravity aligns with the theoretically designed position, thereby ensuring the accuracy of torque measurement.

[0042] Furthermore, the design of the guide slot 411 allows the calibration member 3 to slide freely within its length, allowing the operator to flexibly adjust the position of the calibration member 3 based on the actual calibration conditions, such as different torque ranges and the characteristics of the test object. For example, when performing low-torque calibration, the calibration member 3 can be slid close to the axis of the rotating shaft of the transmission unit 2; when performing high-torque calibration, it can be slid away from the axis of the rotating shaft. This flexible position adjustment function enables the torque testing device to adapt to a variety of different calibration scenarios, thereby improving the device's versatility and applicability.

[0043] Optionally, one of the guide groove 411 and the calibration member 3 is provided with a plurality of positioning grooves, and the other of the guide groove 411 and the calibration member 3 is provided with positioning balls, and the positioning balls can be partially engaged in the positioning grooves.

[0044] like Figure 4As shown, the setting of multiple positioning grooves enables the calibration member 3 to have multiple precise positioning positions in the guide groove 411. When performing torque calibration, different test requirements often require the calibration member 3 to be in different positions to change its distance from the axis of the rotating shaft of the transmission part 2, thereby generating different torque values. By using the clamping connection between the positioning balls and different positioning grooves, the operator can easily fix the calibration member 3 at the required specific position to achieve precise positioning of multiple gears. In this way, the center of gravity position of the calibration member 3 can be ensured to be accurate, so that when the test part 4 rotates with the transmission part 2, the torque value generated meets the theoretical design requirements, thereby improving the accuracy of the torque calibration.

[0045] Different torque calibration conditions require different positions for calibration member 3. The multi-positioning slot design of this design allows the operator to flexibly adjust the position of calibration member 3 according to the actual calibration conditions. Position adjustment can be completed by simply applying a certain external force, such as rotating the adjustment member 6, to disengage the positioning ball from one positioning slot, then moving the calibration member 3 to another suitable positioning slot and engaging it. This flexible adjustment function enables the torque test device to adapt to a variety of different calibration conditions without replacing the entire device or complex structural modifications, which also improves the device's versatility and scope of application.

[0046] Furthermore, the snap-fit ​​structure between the positioning ball and the positioning groove in this design also achieves high positioning accuracy. The spherical surface of the positioning ball fits tightly against the curved surface of the positioning groove, reducing positioning errors caused by uneven contact surfaces. Furthermore, the snap-fit ​​of the positioning ball within the positioning groove provides a certain self-locking function, effectively preventing the calibration element 3 from undergoing minor displacement after positioning, further ensuring positioning accuracy and providing reliable support for torque calibration.

[0047] Optionally, the adjusting member 6 is an indexing pin, and the indexing pin is threadedly engaged with the assembly opening 32 to fix the connecting member 41 .

[0048] like Figure 5 and Figure 6 As shown, after the calibration part 3 is adjusted to the preset position, the indexing pin can be tightened, and the calibration part 3 can be fixed by using the threaded fit between the indexing pin and the assembly port 32 to facilitate the subsequent calibration of the torque sensor; after the calibration is completed, the indexing pin can be screwed in the opposite direction, and the indexing pin and the assembly port 32 are disengaged to facilitate the position movement or replacement of the calibration part 3.

[0049] Optionally, a driving unit 7 is further included, and the driving unit 7 is arranged on the base 1 , and a driving end of the driving unit 7 is in transmission connection with the transmission unit 2 .

[0050] like Figure 1 and Figure 2As shown, the driving unit 7 may include a motor 71 and a reducer 72. The motor 71 can rotate at a predetermined angle under the control of the controller 9. The reducer 72 can slow down and buffer the power output by the motor 71, thereby ensuring the reliability and safety of power transmission.

[0051] Optionally, the transmission part 2 includes a connecting shaft 21 and a mounting bracket 22, one end of the connecting shaft 21 is connected to the driving end of the driving part 7, and the other end of the connecting shaft 21 is connected to the mounting bracket 22, the torque sensor 5 is fixed in the mounting bracket 22, and the testing part 4 is connected to the side of the mounting bracket 22 away from the torque sensor 5.

[0052] like Figure 1 and Figure 2 As shown, the mounting bracket 22 is passed through the connecting shaft 21 and is used to mount the torque sensor 5 and the test unit 4. This allows the mounting bracket 22 to support and protect the torque sensor 5 while also providing a convenient mounting location for the test unit 4. Driven by the driving unit 7, the connecting shaft 21 can drive the mounting bracket 22, the torque sensor 5, and the test unit 4 to rotate together.

[0053] Optionally, the transmission part 2 further includes a limiting bracket 23, and the mounting bracket 22 is connected to the limiting bracket 23. Figure 2 As shown, the limiting bracket 23 is fixed on the base 1 so that the limiting bracket 23 can limit the rotation angle of the connected mounting bracket 22 to avoid abnormalities caused by excessive rotation of the mounting bracket 22.

[0054] Optionally, an angle sensor 8 is further included, which is connected to the driving part 7 and is used to detect the rotation angle of the driving part 7. Figure 1 As shown, the angle sensor 8 is connected to the driving part 7 for signal communication so as to be able to monitor the rotation angle of the driving part 7, which is equivalent to the actual pitch angle of the calibration piece and the head mold assembly.

[0055] Optionally, the weight of the calibration piece 3 matches the device to be tested, so as to simulate the device to be tested, such as a head-mounted device, which is capable of measuring the torque, thereby facilitating the evaluation of the neck comfort of the head-mounted device.

[0056] In one example, a wearable device comfort test system may also include a head mold assembly. The head mold assembly may utilize the same connection structure and method as calibration component 3 in the aforementioned embodiment to be detachably connected to a torque testing device. This allows the torque testing device to rotate the head mold assembly and the wearable device worn on the head mold assembly along a rotation axis to test the torque generated by the wearable device at a target position. In this example, the rotation axis may be a pitch axis.

[0057] In one example of this embodiment, a method for testing the wearing comfort of a wearable device is as follows: Figure 7 As shown, the method includes steps S11 and S12.

[0058] Step S11, wearing the target wearable device on the head mold assembly; In this embodiment, the target wearable device may include different types of smart glasses such as VR, AR, XR, MR, or headphones and other devices.

[0059] Step S12: Control the torque testing device to drive the head mold assembly to rotate on the pitch axis, and obtain the torque applied by the target wearable device to the target position when the actual pitch angle of the head mold assembly meets the first preset condition. The torque is used to characterize the wearing comfort of the target wearable device.

[0060] In this example, the torque applied by a wearable device to a specific location on the human body when worn can be measured using the aforementioned method. The magnitude of the torque directly reflects the degree of pressure exerted by the device on the neck or other target location. A smaller torque generally means that the device places less pressure on the target location, resulting in higher wearing comfort. Conversely, a larger torque may indicate that the device places a greater pressure on the target location, resulting in relatively lower wearing comfort. By quantitatively measuring this torque value, an objective comfort evaluation index can be established, providing data support for the structural optimization, material selection, and ergonomic design of wearable devices, thereby improving the user experience. In this example, a method for testing the wearing comfort of a wearable device is provided. By using a wearable device wearing comfort testing system comprising a head mold assembly and a torque testing device, automated, high-precision testing of the torque of a target wearable device is achieved. The drive unit automatically drives the headform assembly to rotate on the pitch axis and uses the angle sensor to obtain the actual pitch angle in real time. When the first preset condition is met, the torque applied by the target wearable device to the target position can be accurately collected to obtain a quantitative indicator representing the wearing comfort. This helps product developers effectively evaluate the wearing comfort of wearable devices. At the same time, it effectively avoids the deviation caused by manual angle adjustment and significantly improves the accuracy and repeatability of test results. Furthermore, the detachable connection structure and automated testing process improve test efficiency, meet the needs of large-scale, standardized testing, and provide reliable data support for the design optimization and quality control of wearable devices.

[0061] In one example of this embodiment, controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis includes: setting a first target pitch angle of the head mold assembly; based on the first target pitch angle and the actual pitch angle, controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis; when a first absolute value of the difference between the actual pitch angle of the head mold assembly and the first target pitch angle is less than a first preset threshold, determining that the actual pitch angle meets a first preset condition.

[0062] In one example, setting the first target pitch angle of the headform assembly can be accomplished through host computer software or an embedded system's human-machine interface. The operator can input a specific angle value, such as 15 degrees, 30 degrees, or 45 degrees, based on test standards or requirements (for example, to simulate common head tilt or tilt angles). This value serves as the first target pitch angle. The drive unit then receives the control signal and begins rotating, driving the headform assembly along the pitch axis via the transmission unit. Simultaneously, an angle sensor monitors and provides feedback on the drive unit's rotation angle in real time, which is used as the actual pitch angle of the headform assembly. The device's control unit continuously compares the target pitch angle with the actual pitch angle and employs a PID (proportional-integral-derivative) control algorithm to create a continuous closed-loop control method, ensuring the accuracy of the actual pitch angle.

[0063] The first preset threshold defines the allowable error range within which the system considers the target angle to have been reached. For example, if the first target pitch angle is set to 30.0° and the first preset threshold is set to 0.5°, then when the actual pitch angle reaches any value between 29.5° and 30.5°, the first absolute value of the difference is less than 0.5°, and the condition is met. This closed-loop angle control method eliminates the effects of jitter caused by system inertia or small vibrations, and triggers torque measurement only after the posture is sufficiently stable, thereby greatly ensuring the repeatability of the data. Each test can be performed under almost identical geometric conditions, making the test results of different batches or different models of equipment highly comparable.

[0064] In one example of this embodiment, based on the first target pitch angle and the actual pitch angle, the torque testing device is controlled to drive the head mold assembly to rotate on the pitch axis, including: comparing the first target pitch angle and the actual pitch angle; based on the comparison result, determining the rotation direction of the head mold assembly, wherein, when the actual pitch angle is less than the first target pitch angle, the rotation direction is the direction of increasing the pitch angle of the pitch axis, and when the actual pitch angle is greater than the first target pitch angle, the rotation direction is the direction of decreasing the pitch angle of the pitch axis.

[0065] In this embodiment, the direction of rotation of the headform assembly about the pitch axis can be determined based on the actual pitch angle and the target pitch angle. For example, if the first target pitch angle is 20.0°, and the actual pitch angle reported by the angle sensor is 5.0°, the actual pitch angle is smaller than the first target pitch angle. The system then determines the rotation direction as the direction of increasing the pitch angle of the pitch axis. For the headform, this could be the direction in which the drive unit drives the headform downward, causing the actual angle to continuously increase, approaching the target of 20.0°. If the headform overshoots or needs to test a different angle, the actual pitch angle increases to 25.0°, while the first target pitch angle remains at 20.0°. In this case, the actual pitch angle is larger than the first target pitch angle. The system then determines the rotation direction as the direction of decreasing the pitch angle of the pitch axis. Specifically, the drive unit rotates in the opposite direction, driving the headform upward, reducing the pitch angle and returning it to the target of 20.0°. This clear direction judgment logic ensures that the system can always drive the head model to the target position in the shortest and most efficient way, avoiding unnecessary reciprocating motion and significantly improving test efficiency.

[0066] In one example of this embodiment, controlling the torque testing device to rotate the head mold assembly on the pitch axis based on the first target pitch angle and the actual pitch angle also includes: determining a rotational speed of the head mold assembly based on a first absolute value, wherein the rotational speed is positively correlated with the first absolute value, and the rotational speed decreases as the first absolute value decreases.

[0067] In this example, the first absolute value can be used to determine the rotational speed of the headform assembly. The rotational speed of the drive unit is not constant and can be adjusted by the reducer based on the current angular error. The rotational speed is positively correlated with the first absolute value of the angular error. For example, when the target angle is 30.0°, when the headform begins to rotate and the actual pitch angle is 0.0°, the first absolute value is 30.0°. At this point, the error is significant, so the system controls the drive unit to operate at a relatively high speed, for example, 80% of the motor speed, to achieve rapid approach and save testing time. As the headform rotates, the actual pitch angle becomes 25.0°, and the first absolute value decreases to 5.0°. Based on a preset mapping, the system reduces the rotational speed accordingly, for example, to 30% of the motor speed, to achieve a smooth approach and prevent overshoot due to inertia. When the actual pitch angle reaches 29.5°, the first absolute value is only 0.5°, meaning it is below the first preset threshold. The motor may have entered a low-speed inching or holding state to ensure stability. This speed adjustment method not only ensures positioning efficiency, but also greatly improves the accuracy and stability of the positioning end point, effectively prevents overshoot and oscillation, and lays a solid foundation for the accurate collection of torque data.

[0068] In an example of this embodiment, before the target wearable device is worn on the head mold assembly, the method further includes: determining whether the test accuracy of the torque testing device meets the preset requirements; if the test accuracy of the torque testing device meets the preset requirements, executing the step of wearing the target wearable device on the head mold assembly.

[0069] In one example, a standard torque calibration device or a calibration component with a known precise torque value can be used to apply a series of standard torques to the torque test device. The measured values ​​of the torque test device are recorded and compared with the known standard values ​​to calculate the measurement error and repeatability error. If the measurement error and repeatability error are both within the allowable range, the test accuracy is determined to meet the preset requirements, ensuring that the subsequently collected wearing torque data is accurate and reliable.

[0070] In one example of this embodiment, the testing system for wearing comfort of a wearable device also includes a calibration piece, a torque testing device for detachably connecting the calibration piece or a head mold assembly, a driving unit for driving the calibration piece or the head mold assembly to rotate on the pitch axis, and an angle sensor for obtaining the pitch angle of the calibration piece or the head mold assembly; before wearing the target wearable device on the head mold assembly, determining whether the test accuracy of the torque testing device meets the preset requirements includes: installing the target calibration piece to the torque testing device; controlling the target calibration piece to rotate on the pitch axis, and when the target calibration piece rotates to a second target pitch angle, obtaining a first torque applied by the target calibration piece to the target position; determining whether the difference between the first torque and the target torque meets a second preset condition; and when the difference meets the second preset condition, determining whether the test accuracy of the torque testing device meets the preset requirements.

[0071] In this example, the system can include a variety of calibration components of different sizes and weights to meet the testing or calibration needs of different users. In this example, the torque test device can be pre-calibrated to determine whether it can accurately detect torque values ​​and eliminate the impact of other factors such as vibration and human operation during use. First, the target calibration component can be installed on the torque test device. Then, the drive unit of the system control device drives the target calibration component to rotate on the pitch axis. After it rotates to the second target angle, the first torque is obtained through the torque sensor.

[0072] In this example, the target torque, target calibration object, and second target pitch angle are all pre-stored reference values ​​within the system. These reference values ​​are a set of standard data that can be pre-measured in a rigorous laboratory environment using higher-precision measurement equipment and stored in the system database. For example, for a target calibration object of a specific weight and center of gravity position, when it is rotated to the second target pitch angle, such as 30.0°, due to its own gravitational torque, a specific, calculable target torque, such as 5.00 N·m, should theoretically be applied to the target position. This target torque value serves as the theoretical benchmark for the calibration process.

[0073] During step S23, the system calculates the absolute value of the difference between the first torque and the target torque. The second preset condition typically takes the form of an absolute error value or a relative error percentage. The system determines whether the torque sensor's current measurement accuracy meets the acceptable tolerances by determining whether the absolute value of the difference falls within this tolerance range.

[0074] If the difference satisfies the second pre-set condition, the torque test device's measurement is within an acceptable error range and its results are accurate and reliable. Therefore, the system determines in step S24 that the torque test device has passed verification. This not only signifies a successful verification, but also demonstrates that the entire wearable device comfort testing system's hardware and software are in good condition and can be used for subsequent high-reliability torque testing of wearable devices.

[0075] Conversely, if the difference exceeds the allowable range of the second preset condition, the system will determine that the verification has failed and may trigger an alarm, instructing the operator to recalibrate the sensor, check for loose connections, or investigate whether the system has mechanical failures. This periodic or quick verification before use effectively ensures the long-term accuracy and metrological traceability of torque test data, providing a solid data foundation for product quality assessment.

[0076] In one example of this embodiment, the target calibration member, the second target pitch angle and the target torque are predetermined through a calibration process; the calibration process includes: installing the first calibration member to the torque testing device; controlling the first calibration member to rotate on the pitch axis, and obtaining the second torque applied by the first calibration member to the target position when the first calibration member rotates to the first angle; and determining the first calibration member, the first angle and the second torque as the target calibration member, the second target pitch angle and the target torque for verification, respectively.

[0077] In this embodiment, the reference values ​​used in the calibration process, namely, the target calibration component, the second target pitch angle, and the target torque, can be determined by the user through the system executing the calibration process.

[0078] First, one or more calibration objects in the system, namely the first calibration object, are mounted on the torque testing device. The system then controls the first calibration object to rotate along the pitch axis. When the first calibration object stabilizes at a selected angle under the control of the driver, the torque sensor measures and obtains the second torque applied by the first calibration object to the target position.

[0079] In one example, the second torque can be determined by taking an average value of multiple measurements, and the number of first angles can also be set to one or more according to the user's test requirements or accuracy requirements.

[0080] Afterwards, the system uses the first calibration part, the first angle and the measured second torque as a new reference combination and stores it as the target calibration part, the second target pitch angle and the target torque for subsequent routine calibration.

[0081] In this example, the system's calibration relies on a flexible, user-defined benchmark based on specific testing needs or varying accuracy requirements. For example, a user can select a calibration component with a weight similar to the wearable device being tested and calibrate it at a specific angle of greatest concern, achieving the most accurate calibration at that critical point. This design significantly enhances the system's flexibility and adaptability, enabling not only periodic calibration but also rapid adaptation to specific product-specific test scenarios.

[0082] In one example of this embodiment, determining whether the difference between the first torque and the target torque meets the second preset condition includes: determining the relative error between the first torque and the target torque, wherein the relative error is the ratio of the second absolute value to the target torque, and the second absolute value is the absolute value of the difference between the first torque and the target torque; when the relative error is less than or equal to the preset error threshold, determining that the difference meets the second preset condition.

[0083] In this example, relative error = (second absolute value / target torque) × 100%. The second absolute value is the absolute difference between the first torque (measured value) and the target torque (theoretical reference value). By dividing the absolute difference by the target torque, the error is normalized to a percentage that is independent of the torque value. This allows for comparable accuracy assessments of torques of varying magnitudes.

[0084] The system then compares the calculated relative error with a pre-set error threshold. The threshold can be a maximum allowable relative error value, such as 1%, 2%, or 5%, based on the accuracy requirements of the test system, sensor performance indicators, or industry standards. If the relative error is less than or equal to the threshold, the difference is determined to meet the preset condition.

[0085] In this example, using relative error for judgment adapts to different torque ranges. Whether calibrating low or high torque, the same percentage standard is used, ensuring consistency of calibration standards. This criterion also makes calibration conclusions more intuitive and easy to understand, allowing operators to clearly understand the degree to which the current sensor's measurement accuracy deviates from the full-scale or expected value.

[0086] In an example of this embodiment, after determining that the torque testing device has passed the calibration, the method further includes: installing the head mold assembly to the torque testing device; wearing the target wearable device on the head mold assembly; controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis, and obtaining the torque applied by the target wearable device to the target position when the actual pitch angle of the head mold assembly meets the first preset condition.

[0087] In this example, after the torque testing device is calibrated, the calibration component can be removed from the device, and after the head mold assembly is installed, the torque of the wearable device can be tested.

[0088] Optionally, controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis includes: setting a first target pitch angle of the head mold assembly; based on the first target pitch angle and the actual pitch angle, controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis; when a first absolute value of the difference between the actual pitch angle of the head mold assembly and the first target pitch angle is less than a first preset threshold, determining that the actual pitch angle meets a first preset condition.

[0089] Optionally, based on the first target pitch angle and the actual pitch angle, the torque testing device is controlled to drive the head mold assembly to rotate on the pitch axis, including: comparing the first target pitch angle and the actual pitch angle; based on the comparison result, determining the rotation direction of the head mold assembly, wherein, when the actual pitch angle is less than the first target pitch angle, the rotation direction is the direction of increasing the pitch angle of the pitch axis, and when the actual pitch angle is greater than the first target pitch angle, the rotation direction is the direction of decreasing the pitch angle of the pitch axis.

[0090] Optionally, based on the first target pitch angle and the actual pitch angle, controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis also includes: determining the rotation speed of the head mold assembly based on the first absolute value, wherein the rotation speed is positively correlated with the first absolute value, and when the first absolute value decreases, the rotation speed decreases.

[0091] The present disclosure also provides a testing system 200 for wearing comfort of a wearable device, including a processor 201, a memory 202, a head mold assembly 203 and a torque testing device 204. The torque testing device includes a torque sensor, an angle sensor and a driving unit. The torque sensor is arranged at a target position. The torque testing device is used to detachably connect to the head mold assembly. The driving unit is used to drive the head mold assembly to rotate on the pitch axis. The angle sensor is used to obtain the pitch angle of the head mold assembly. The memory stores computer instructions. When the computer instructions are executed by the processor, any method in the embodiments of the testing method for wearing comfort of a wearable device is implemented.

[0092] Optionally, the wearable device wearing comfort testing system 200 also includes a calibration part 3, the torque testing device is used to detachably connect the head mold assembly or the calibration part, the driving part is used to drive the head mold assembly or the calibration part to rotate on the pitch axis, and the angle sensor is used to obtain the pitch angle of the head mold assembly or the calibration part.

[0093] The various embodiments of this disclosure are described in a progressive manner. Similar portions between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the device and apparatus embodiments are generally similar to the method embodiments, so their descriptions are relatively simple. For relevant portions, reference can be made to the descriptions of the method embodiments.

[0094] The foregoing description describes specific embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that described in the embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order shown or the sequential order to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0095] The embodiments of the present disclosure may be systems, methods, and / or computer program products. The computer program product may include a computer-readable storage medium carrying computer-readable program instructions for causing a processor to implement various aspects of the embodiments of the present disclosure.

[0096] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disc (DVD), a memory stick, a floppy disk, a mechanical encoding device such as a punch card or raised-in-groove structure on which instructions are stored, and any suitable combination thereof. As used herein, a computer-readable storage medium is not to be construed as a transient signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., a light pulse through a fiber optic cable), or an electrical signal transmitted through an electrical wire.

[0097] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to each computing / processing device, or downloaded to an external computer or external storage device via a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network can include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. The network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions to be stored in the computer-readable storage medium in each computing / processing device.

[0098] The computer program instructions used to perform the operations of the embodiments of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, the state information of the computer-readable program instructions is used to personalize an electronic circuit, such as a programmable logic circuit, a field programmable gate array (FPGA), or a programmable logic array (PLA), so that the electronic circuit can execute the computer-readable program instructions, thereby implementing various aspects of the embodiments of the present disclosure.

[0099] Various aspects of the embodiments of the present disclosure are described herein with reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each block of the flowcharts and / or block diagrams, and combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer-readable program instructions.

[0100] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, thereby producing a machine, so that when these instructions are executed by the processor of the computer or other programmable data processing device, a device is generated that implements the functions / actions specified in one or more blocks in the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium, where these instructions cause the computer, programmable data processing device, and / or other device to operate in a specific manner. Thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing various aspects of the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0101] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device, so that a series of operational steps are performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to implement the functions / actions specified in one or more blocks in the flowchart and / or block diagram.

[0102] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to multiple embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of an instruction, and a part of the module, program segment or instruction contains one or more executable instructions for implementing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, as well as the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, implementation by software, and implementation by a combination of software and hardware are all equivalent.

[0103] While various embodiments of the present disclosure have been described above, the above descriptions are illustrative, non-exhaustive, and not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A method for testing the wearing comfort of a wearable device, characterized in that: A testing system for wearing comfort of a wearable device includes a head mold assembly and a torque testing device. The torque testing device includes a torque sensor, an angle sensor, and a driving unit. The torque sensor is disposed at a target position. The torque testing device is used to detachably connect to the head mold assembly. The driving unit is used to drive the head mold assembly to rotate on a pitch axis. The angle sensor is used to obtain the pitch angle of the head mold assembly. The method includes: Wearing the target wearable device on the head mold assembly; The torque testing device is controlled to drive the head mold assembly to rotate on the pitch axis, and when the actual pitch angle of the head mold assembly meets the first preset condition, the torque applied by the target wearable device to the target position is obtained, and the torque is used to characterize the wearing comfort of the target wearable device.

2. The method according to claim 1, characterized in that The step of controlling the torque testing device to drive the head mold assembly to rotate on the pitch axis includes: Setting a first target pitch angle of the head mold assembly; Based on the first target pitch angle and the actual pitch angle, controlling the torque testing device to drive the headform assembly to rotate on the pitch axis; When a first absolute value of a difference between the actual pitch angle of the head mold assembly and the first target pitch angle is smaller than a first preset threshold, it is determined that the actual pitch angle meets the first preset condition.

3. The method according to claim 2, characterized in that The step of controlling the torque testing device to drive the headform assembly to rotate on the pitch axis based on the first target pitch angle and the actual pitch angle includes: comparing the first target pitch angle and the actual pitch angle; Based on the comparison result, the rotation direction of the head mold assembly is determined, wherein, when the actual pitch angle is less than the first target pitch angle, the rotation direction is a direction of increasing the pitch angle of the pitch axis; when the actual pitch angle is greater than the first target pitch angle, the rotation direction is a direction of decreasing the pitch angle of the pitch axis.

4. The method according to claim 2, characterized in that The method further comprises: controlling the torque testing device to drive the headform assembly to rotate on the pitch axis based on the first target pitch angle and the actual pitch angle; Based on the first absolute value, a rotation speed of the head mold assembly is determined, wherein the rotation speed is positively correlated with the first absolute value, and when the first absolute value decreases, the rotation speed decreases.

5. The method according to claim 1, wherein Before putting the target wearable device on the head mold assembly, the method further includes: Determining whether the test accuracy of the torque testing device meets preset requirements; When the test accuracy of the torque testing device meets the preset requirements, the step of wearing the target wearable device on the head mold assembly is performed.

6. The method according to claim 5, characterized in that The wearable device wearing comfort testing system further includes a calibration piece, the torque testing device is used to detachably connect the calibration piece or the head mold assembly, the driving unit is used to drive the calibration piece or the head mold assembly to rotate on the pitch axis, and the angle sensor is used to obtain the pitch angle of the calibration piece or the head mold assembly; Determining whether the test accuracy of the torque testing device meets the preset requirements includes: Installing the target calibration piece to the torque testing device; controlling the target calibration member to rotate on the pitch axis, and obtaining a first torque applied by the target calibration member to the target position when the target calibration member rotates to a second target pitch angle; determining whether a difference between the first torque and the target torque satisfies a second preset condition; When the difference satisfies the second preset condition, it is determined whether the test accuracy of the torque testing device meets the preset requirement.

7. The method according to claim 6, characterized in that The target calibration component, the second target pitch angle, and the target torque are predetermined by a calibration process; The calibration process includes: Installing a first calibration piece to the torque testing device; controlling the first calibration member to rotate on the pitch axis, and obtaining a second torque applied by the first calibration member to the target position when the first calibration member rotates to a first angle; The first calibration piece, the first angle, and the second torque are respectively determined as the target calibration piece, the second target pitch angle, and the target torque for calibration.

8. The method according to claim 6, characterized in that Determining whether the difference between the first torque and the target torque satisfies a second preset condition includes: determining a relative error between the first torque and the target torque, wherein the relative error is a ratio of a second absolute value to the target torque, and the second absolute value is an absolute value of a difference between the first torque and the target torque; When the relative error is less than or equal to a preset error threshold, it is determined that the difference meets the second preset condition.

9. A wearable device wearing comfort testing system, characterized in that: The invention comprises a processor, a memory, a head mold assembly and a torque testing device, wherein the torque testing device comprises a torque sensor, an angle sensor and a driving unit, the torque sensor being arranged at a target position, the torque testing device being used for detachably connecting to the head mold assembly, the driving unit being used for driving the head mold assembly to rotate on a pitch axis, the angle sensor being used for obtaining the pitch angle of the head mold assembly, the memory storing computer instructions, and the computer instructions implementing the method described in any one of claims 1 to 8 when executed by the processor.

10. The system according to claim 9, characterized in that The system also includes a calibration piece, the torque testing device is used to detachably connect the head mold assembly or the calibration piece, the driving unit is used to drive the head mold assembly or the calibration piece to rotate on the pitch axis, and the angle sensor is used to obtain the pitch angle of the head mold assembly or the calibration piece.

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