Seat height adjusting method and system based on seat cushion pressure distribution

Abstract

The invention relates to the technical field of intelligent seat adjustment, and provides a seat height adjustment method and system based on seat cushion pressure distribution.The method comprises the steps that pressure distribution characteristics are recognized in pressure distribution data of multiple groups of users on a seat cushion, and a relation model reflecting the pressure distribution characteristics of the users in the comfortable sitting posture is constructed through the characteristics; by monitoring the pressure distribution data in the current seat cushion height adjusting process in real time and substituting the pressure distribution data into the relation model, when the relation model is met, it is regarded that the seat cushion height is adjusted to the height comfortable for the user, the seat height adjusting efficiency can be improved, and the seat use experience of the user is further optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent seat adjustment, and in particular to a seat height adjustment method and system based on seat cushion pressure distribution. Background Art

[0002] Current seats generally require users to manually adjust the height to suit their sitting posture. The intelligent seat height adjustment strategy generally adjusts the seat cushion height to the same height as the calf, so that the popliteal fossa is level with the seat cushion. However, users can adjust the popliteal fossa to the same level as the seat cushion in different sitting postures by tilting their calves. It is not necessary to rigidly make the seat cushion height consistent with the calf height. Therefore, the current seat height adjustment solution is inefficient and cannot provide users with the best user experience. Summary of the Invention

[0003] The present invention provides a seat height adjustment method based on seat cushion pressure distribution, which is used to solve the problem in the prior art that low efficiency of seat adjustment affects user experience.

[0004] A first aspect of the present invention provides a seat height adjustment method based on seat cushion pressure distribution, comprising:

[0005] Acquire multiple groups of user seat cushion pressure sample data, and construct a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each group of user sitting posture sample data is data on the comfortable sitting posture of the same user at different seat cushion heights; identify pressure distribution feature data based on the seat cushion pressure distribution function;

[0006] A relationship model between pressure magnitude and pressure distribution in a comfortable sitting posture is constructed based on the pressure distribution characteristic data, and the relationship model is modified based on the pressure distribution characteristic data of different users;

[0007] Send a seat cushion height adjustment start instruction and monitor the current seat cushion pressure distribution data in real time; substitute the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and send a seat cushion height adjustment stop instruction when the relationship model is satisfied.

[0008] Optionally, the relationship model between the pressure magnitude and pressure distribution in the comfortable sitting posture is specifically:

[0009] ;

[0010] in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle.

[0011] Optionally, after sending the seat cushion height adjustment stop instruction, the method further includes:

[0012] The current user's pressure zone area and the total pressure on the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the current user's seat cushion height is associated with the corresponding user database.

[0013] Optionally, also include:

[0014] The user's identity is identified based on the current seat cushion pressure distribution data, and the seat height is adjusted according to the seat cushion height stored in the user database.

[0015] A second aspect of the present application provides a seat height adjustment system based on seat cushion pressure distribution, comprising:

[0016] The data processing module is used to obtain multiple groups of user seat cushion pressure sample data, construct a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each group of user sitting posture sample data is data on the comfortable sitting posture of the same user at different seat cushion heights; and identify pressure distribution feature data based on the seat cushion pressure distribution function;

[0017] A relationship model building module is used to build a relationship model between pressure magnitude and pressure distribution under comfortable sitting posture based on pressure distribution characteristic data, and to modify the relationship model based on pressure distribution characteristic data of different users;

[0018] The seat adjustment module is used to send a seat cushion height adjustment start instruction and monitor the current seat cushion pressure distribution data in real time; substitute the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and send a seat cushion height adjustment stop instruction when the relationship model is satisfied.

[0019] Optionally, in the relationship model building module, the relationship model between the pressure magnitude and pressure distribution in a comfortable sitting posture is specifically:

[0020] ;

[0021] in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle.

[0022] Optionally, the seat adjustment module, after sending the seat cushion height adjustment stop instruction, further includes:

[0023] The current user's pressure zone area and the total pressure on the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the current user's knee height is associated with the corresponding user database.

[0024] Optionally, also include:

[0025] The seat memory adjustment module is used to identify the user's identity based on the current seat cushion pressure distribution data and adjust the seat height based on the seat cushion height stored in the user database.

[0026] A third aspect of the present application provides a seat height adjustment method and device based on seat cushion pressure distribution, the device comprising a processor and a memory:

[0027] The memory is used to store program code and transmit the program code to the processor;

[0028] The processor is configured to execute the seat height adjustment method based on seat cushion pressure distribution according to any one of the first aspects of the present invention according to the instructions in the program code.

[0029] A fourth aspect of the present application provides a computer-readable storage medium for storing program code, wherein the program code is used to execute a seat height adjustment method based on seat cushion pressure distribution as described in any one of the first aspects of the present invention.

[0030] It can be seen from the above technical solution that the present invention has the following advantages: by identifying the pressure distribution characteristics in the pressure distribution data of multiple groups of users on the seat cushion, a relationship model reflecting the pressure distribution characteristics of the user under a comfortable sitting posture is constructed based on the characteristics; by real-time monitoring of the pressure distribution data during the current seat cushion height adjustment process and substituting it into the relationship model, when the relationship model is met, the seat cushion height is deemed to be adjusted to a comfortable height for the user, which can improve the seat height adjustment efficiency and further optimize the user's seat usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 is a flow chart of a seat height adjustment method based on seat cushion pressure distribution;

[0033] Figure 2 This is a structural diagram of a seat height adjustment system based on seat cushion pressure distribution. DETAILED DESCRIPTION

[0034] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] The present invention provides a seat height adjustment method based on seat cushion pressure distribution, which is used to solve the problem in the prior art that low efficiency of seat adjustment affects user experience.

[0036] See also Figure 1 , Figure 1 This is a first flow chart of a seat height adjustment method based on seat cushion pressure distribution provided by an embodiment of the present invention.

[0037] S100, obtaining multiple sets of user seat cushion pressure sample data, constructing a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each set of user sitting posture sample data represents the comfortable sitting posture of the same user at different seat cushion heights; and identifying pressure distribution feature data based on the seat cushion pressure distribution function;

[0038] It should be noted that seat cushion pressure sample data is obtained in advance for multiple users of different heights and weights. Each user maintains the most comfortable posture at different seat cushion heights. The data is then detected and recorded to obtain multiple sets of user seat cushion pressure sample data. Because the user's calf length remains unchanged and the most comfortable sitting posture is maintained, the popliteal fossa needs to be level with the seat cushion. That is, the user's calf will be tilted and the thigh will be spread when sitting. At this time, the user's pressure distribution on the seat cushion and the pressure at each location will change. The seat cushion is soft and will deform under the pressure of the user. In this embodiment, a thin film pressure sensor can be arranged in the seat cushion to detect the pressure distribution by deformation. A spatial coordinate system is constructed based on the plane on which the seat cushion is located. The user's default sitting posture orientation on the seat cushion is used as the horizontal axis. The seat cushion surface is approximately regarded as a flat plane. On this plane, the user's default sitting posture orientation on the seat cushion is used as the horizontal axis, and the vertical axis is perpendicular to the user's default sitting posture orientation. The default sitting posture orientation on the seat is generally the direction on the seat cushion plane facing the seat back plane, and the direction perpendicular to the seat cushion plane is the depth axis of the constructed spatial coordinate system.

[0039] Since the pressure exerted by the user on the seat surface should be due to gravity, the pressure direction is considered to be perpendicular to the seat plane downward. The seat plane and the horizontal and vertical axes of the spatial coordinate system are in the same plane. The pressure value at each coordinate point on the plane can be obtained through the thin film pressure sensor to construct the seat pressure distribution function. , and the coordinate area under pressure can constitute the pressure area The pressure distribution characteristic data in this embodiment includes the pressure area center and the pressure distribution center of the pressure distribution. The pressure distribution center can be obtained based on the pressure distribution center calculation model. The pressure distribution center calculation model is specifically:

[0040] ;

[0041] The pressure distribution center corresponds to the center of gravity of the user on the seat cushion. The pressure area center can be obtained based on the pressure area center calculation model. The pressure area center calculation model is specifically:

[0042] ;

[0043] The pressure distribution center calculation model is equivalent to treating the distribution of pressure on the plane as the density distribution of a two-dimensional object, and calculating the center of weight distribution of the user's sitting posture on the seat plane by calculating the center of mass; while the pressure area center calculation model is equivalent to only considering the shape of the pressure area, calculating the centroid of the plane area as the center of the pressure area, and because the user's comfortable sitting posture will change with the seat height and the thigh opening angle changes, the shape of the pressure area will also change.

[0044] S200, constructing a relationship model between pressure magnitude and pressure distribution in a comfortable sitting posture based on the pressure distribution characteristic data, and modifying the relationship model based on the pressure distribution characteristic data of different users;

[0045] It should be noted that the same user will have different pressure distribution when sitting on the seat cushion in different sitting postures. Due to the different heights of the seat cushion, in order to ensure the most comfortable sitting posture, the user's popliteal fossa height is consistent with the seat cushion height, and the calf will tilt as the height decreases. The calf will be upright in the most comfortable sitting posture when the seat cushion height is consistent with the calf height. In the different most comfortable sitting postures in the aforementioned steps, as the calf tilts, the user will naturally lean forward to ensure a balanced sitting posture. The center of the user's pressure distribution on the seat cushion will shift away from the backrest on the horizontal axis, and the contact area between the user's legs and buttocks and the seat cushion will also decrease. When the contact area changes, the user's pressure distribution on the seat cushion also changes accordingly. Therefore, the pressure distribution characteristics of the user on the seat cushion can reflect It reflects the actual sitting posture of the user, because the pressure distribution area is irregular in shape and the pressure distribution center may not be within the pressure distribution area; based on the seat cushion pressure distribution characteristic data of the same user maintaining a comfortable sitting posture at different seat cushion heights, the coordinate correlation relationship between the pressure area center and the pressure distribution center can be found. The constructed relationship model can reflect what kind of relationship needs to be satisfied between the user's center of gravity on the seat cushion of the current seat and the sitting posture so that the user can sit comfortably; there may be some personalized differences between different users, so when constructing the relationship model between pressure size and pressure distribution under a comfortable sitting posture, the pressure distribution characteristic data obtained from multiple groups of different users can be used to modify the relationship model to improve the universality of the model.

[0046] S300, sending a seat cushion height adjustment start instruction and monitoring the current seat cushion pressure distribution data in real time; substituting the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and sending a seat cushion height adjustment stop instruction when the relationship model is satisfied.

[0047] It should be noted that when an unfamiliar user uses the seat, the seat cushion's pressure distribution data is monitored in real time, and a height adjustment start command is issued to the seat cushion. At this time, the seat cushion will slowly and steadily rise. As the seat cushion height changes, the user's pressure distribution on the seat cushion will also change. The detected real-time pressure distribution data is substituted into the relationship model between pressure magnitude and pressure distribution. Based on whether the pressure distribution satisfies the relationship model, it can be determined whether the user's sitting posture at the current seat cushion height is comfortable for the user. Furthermore, to increase the speed of adaptive seat height adjustment, after monitoring the current seat cushion pressure distribution data, an approximate pressure distribution center can be fitted based on the pressure values of multiple feature points to improve data processing efficiency. The pressure area center only requires the area outline to be calculated, and the real-time pressure distribution data does not need to completely satisfy the relationship model. Data close to a certain range required by the model can also be considered to be in a comfortable sitting position for the user. During the seat cushion height adjustment process, if it is detected that the data satisfies the relationship model, a seat cushion height adjustment stop command can be issued to maintain a comfortable seat cushion height for the user.

[0048] In this embodiment, by identifying pressure distribution characteristics in the pressure distribution data of multiple groups of users on the seat cushion, a relationship model that reflects the pressure distribution characteristics under the user's comfortable sitting posture is constructed based on the characteristics; by real-time monitoring of the pressure distribution data during the current seat cushion height adjustment process and substituting it into the relationship model, when the relationship model is met, the seat cushion height is deemed to be adjusted to a comfortable height for the user, which can improve the seat height adjustment efficiency and further optimize the user's seat usage experience.

[0049] The above is a detailed description of the first embodiment of a seat height adjustment method based on seat cushion pressure distribution provided by the present application. The following is a detailed description of the second embodiment of a seat height adjustment method based on seat cushion pressure distribution provided by the present application.

[0050] In this embodiment, a seat height adjustment method based on seat cushion pressure distribution is further provided. In the aforementioned step S200, the relationship model between the pressure magnitude and pressure distribution in the comfortable sitting posture is specifically:

[0051] ;

[0052] in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle;

[0053] It should be noted that the pressure distribution center corresponds to the distribution of the force applied by the user on the seat cushion, and the pressure area center corresponds to the user's sitting posture on the seat cushion. Generally speaking, when the user is in a comfortable sitting posture with a seat back, the body's center of gravity will lean backward, and the pressure distribution center should be in the negative direction of the horizontal axis of the pressure area center. When there is no seat back, the body's center of gravity will lean forward, and the pressure distribution center should be in the positive direction of the horizontal axis of the pressure area center, and the degree of this forward and backward leaning is limited under comfortable conditions. The data can be limited by the vector direction and vector modulus from the pressure distribution center to the pressure area center. The comfortable sitting center offset constant A corresponds to the vector modulus. The distance between the pressure distribution center and the pressure area center should be within a certain range, and the upper and lower limits of the center offset direction angle limit the vector direction from the pressure distribution center to the pressure area center. The relationship model between the pressure size and pressure distribution in a comfortable sitting posture limits the user's pressure distribution center to a certain range of the pressure area center. The pressure distribution function reflects the overall pressure situation of a surface affected by the user. In addition to the horizontal coordinate of the pressure distribution center, It mainly reflects the user's sitting posture in the horizontal direction. However, since the user's sitting posture may not completely conform to the horizontal direction, there may be deviations. The vertical coordinate of the pressure distribution center on the vertical axis is It can reflect the influence of sideways downward pressure when sitting, that is, if the user's sitting posture is not completely in the horizontal direction and the sitting posture is partially offset on the vertical axis, then the pressure distribution center will also be offset on the vertical axis along with the sitting posture direction;

[0054] A seat height adjustment method based on seat cushion pressure distribution is further provided. In the aforementioned step S300, after the seat cushion height adjustment stop instruction is sent, the method further includes:

[0055] The pressure area of the current user and the total pressure borne by the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the seat cushion height of the current user is associated with the corresponding user database; it should be noted that each user has his or her own sitting habits when using a seat. The sitting habits in this embodiment refer to the position of the user on the seat cushion. For example, some users like to sit close to the backrest, and the corresponding pressure area on the seat cushion is larger, while some users like to sit on the edge of the seat, and the corresponding pressure area on the seat cushion is smaller. In addition, the pressure values on the pressure area are different for different users with different weights. The user can be identified based on the user's pressure area and the total pressure borne by the seat cushion, and a corresponding database is constructed to associate the user with the calculated knee height of the current user.

[0056] Furthermore, based on the user database constructed in the aforementioned steps, after associating the current user's knee height with the corresponding user database, the system further includes step S400, specifically: identifying the user based on the current seat cushion pressure distribution data, and adjusting the seat height based on the seat cushion height stored in the user database. After constructing the corresponding database to associate the user with the calculated comfortable sitting cushion height for the current user, the seat cushion height can be adjusted more quickly to the user's optimal sitting position based on the real-time monitored current seat cushion pressure distribution data.

[0057] The above is a detailed description of a seat height adjustment method based on seat cushion pressure distribution provided in the first aspect of the present application. The following is a detailed description of an embodiment of a seat height adjustment system based on seat cushion pressure distribution provided in the second aspect of the present application.

[0058] See also Figure 2 , Figure 2 This embodiment provides a seat height adjustment system based on seat cushion pressure distribution, including:

[0059] The data processing module 10 is used to obtain multiple groups of user seat cushion pressure sample data, construct a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each group of user sitting posture sample data is data of the same user's comfortable sitting posture at different seat cushion heights; and identify pressure distribution feature data based on the seat cushion pressure distribution function;

[0060] A relationship model building module 20 is used to build a relationship model between pressure magnitude and pressure distribution in a comfortable sitting posture based on the pressure distribution characteristic data, and to modify the relationship model based on the pressure distribution characteristic data of different users;

[0061] The seat adjustment module 30 is used to send a seat cushion height adjustment start instruction and monitor the current seat cushion pressure distribution data in real time; substitute the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and send a seat cushion height adjustment stop instruction when the relationship model is satisfied.

[0062] Furthermore, in the relationship model building module 20, the relationship model between the pressure magnitude and the pressure distribution in a comfortable sitting posture is specifically:

[0063] ;

[0064] in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle.

[0065] Furthermore, after sending the seat cushion height adjustment stop instruction, the seat adjustment module 30 further includes:

[0066] The current user's pressure zone area and the total pressure on the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the current user's knee height is associated with the corresponding user database.

[0067] Furthermore, it also includes:

[0068] The seat memory adjustment module 40 is used to identify the user's identity based on the current seat cushion pressure distribution data and adjust the seat height according to the seat cushion height stored in the user database.

[0069] The third aspect of the present application also provides a seat height adjustment method device based on seat cushion pressure distribution, including a processor and a memory: the memory is used to store program code and transmit the program code to the processor; the processor is used to execute the above-mentioned seat height adjustment method based on seat cushion pressure distribution according to the instructions in the program code.

[0070] A fourth aspect of the present application provides a computer-readable storage medium, which is used to store program code, and the program code is used to execute the above-mentioned seat height adjustment method based on seat cushion pressure distribution.

[0071] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and equipment can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0072] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0073] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0074] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0075] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0076] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seat height adjustment method based on seat cushion pressure distribution, characterized in that include: Acquire multiple groups of user seat cushion pressure sample data, and construct a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each group of user sitting posture sample data is data on the comfortable sitting posture of the same user at different seat cushion heights; identify pressure distribution feature data based on the seat cushion pressure distribution function; A relationship model between pressure magnitude and pressure distribution in a comfortable sitting posture is constructed based on the pressure distribution characteristic data, and the relationship model is modified based on the pressure distribution characteristic data of different users; Send a seat cushion height adjustment start instruction and monitor the current seat cushion pressure distribution data in real time; substitute the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and send a seat cushion height adjustment stop instruction when the relationship model is satisfied.

2. The seat height adjustment method based on seat cushion pressure distribution according to claim 1, characterized in that: The relationship model between pressure magnitude and pressure distribution in the comfortable sitting posture is specifically as follows: ； in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle.

3. The seat height adjustment method based on seat cushion pressure distribution according to claim 1, characterized in that: After sending the seat cushion height adjustment stop instruction, the method further includes: The current user's pressure zone area and the total pressure on the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the current user's seat cushion height is associated with the corresponding user database.

4. The seat height adjustment method based on seat cushion pressure distribution according to claim 1, characterized in that: Also includes: The user's identity is identified based on the current seat cushion pressure distribution data, and the seat height is adjusted according to the seat cushion height stored in the user database.

5. A seat height adjustment system based on seat cushion pressure distribution, characterized in that: include: The data processing module is used to obtain multiple groups of user seat cushion pressure sample data, construct a seat cushion pressure distribution function based on the user seat cushion pressure sample data, where each group of user sitting posture sample data is data on the comfortable sitting posture of the same user at different seat cushion heights; and identify pressure distribution feature data based on the seat cushion pressure distribution function; A relationship model building module is used to build a relationship model between pressure magnitude and pressure distribution under comfortable sitting posture based on pressure distribution characteristic data, and to modify the relationship model based on pressure distribution characteristic data of different users; The seat adjustment module is used to send a seat cushion height adjustment start instruction and monitor the current seat cushion pressure distribution data in real time; substitute the current seat cushion pressure distribution data into the relationship model between pressure magnitude and pressure distribution, and send a seat cushion height adjustment stop instruction when the relationship model is satisfied.

6. The seat height adjustment system based on seat cushion pressure distribution according to claim 5, characterized in that: In the relationship model building module, the relationship model between pressure magnitude and pressure distribution in a comfortable sitting posture is specifically: ； in, is the horizontal coordinate of the pressure distribution center, is the horizontal coordinate of the center of the pressure area, is the vertical coordinate of the pressure distribution center, is the vertical coordinate of the center of the pressure area, is the center offset correction coefficient, is the comfortable sitting center offset constant, is the lower limit of the center offset direction angle, The upper limit of the center offset direction angle.

7. The seat height adjustment system based on seat cushion pressure distribution according to claim 5, characterized in that: The seat adjustment module further includes, after sending the seat cushion height adjustment stop instruction: The current user's pressure zone area and the total pressure on the seat cushion are calculated based on the current seat cushion pressure distribution data, and a corresponding user database is constructed, and the current user's knee height is associated with the corresponding user database.

8. The seat height adjustment system based on seat cushion pressure distribution according to claim 5, characterized in that: Also includes: The seat memory adjustment module is used to identify the user's identity based on the current seat cushion pressure distribution data and adjust the seat height based on the seat cushion height stored in the user database.

9. A seat height adjustment device based on seat cushion pressure distribution, characterized in that: The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the seat height adjustment method based on seat cushion pressure distribution according to any one of claims 1 to 4 according to the instructions in the program code.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store program codes, and the program codes are used to execute the seat height adjustment method based on seat cushion pressure distribution according to any one of claims 1 to 4.

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