A student chair

Abstract

The application discloses a student seat, which comprises a base, a backrest, an image acquisition module, a processing module and a central control module. The base is provided with a containing bin below, and a first transmission assembly inside the containing bin can drive the base to lift up and down. The backrest is hinged to the containing bin, and three control nodes of a side connector can cooperate to adjust the inclination angle of the backrest. The image acquisition module acquires a multi-angle sitting posture graph of a detection object, and the processing module establishes a real-time sitting posture model according to the multi-angle sitting posture graph, compares the real-time sitting posture model with an ergonomic standard model, calculates a deviation, and determines adjustment parameters. The central control module receives instructions, and synchronously controls the transmission assembly and the connector to optimize the sitting posture. The application acquires the sitting posture information of the detection object through the image acquisition module, compares and analyzes the deviation through the processing module, determines the adjustment parameters, and then synchronously controls the transmission assembly and the connector to adjust the lifting up and down of the base and the inclination of the backrest through the central control module, so that the dynamic optimization of the sitting posture is realized, and the user is provided with the sitting posture conforming to ergonomics.

Description

Technical Field

[0001] This invention relates to the field of seating technology, and more specifically, to a student seat. Background Technology

[0002] Student chairs are essential tools for students' daily learning. Students typically sit for 6 to 8 hours a day to study. High-quality student chairs must have adjustable functions to adapt to growth and development, an ergonomic structure to support the spine, and a long-lasting comfortable user experience to ensure students' spinal health and improve their concentration.

[0003] However, traditional student chairs have significant shortcomings: First, the adjustment precision is insufficient, relying mostly on manual knobs to adjust height or backrest tilt. The adjustment levels are fixed and lack precision, making it difficult to accurately match the body proportions of students of different heights and weights. This results in some students having their lower backs unsupported, their feet unable to touch the ground stably, or their heads tilting excessively forward when sitting. Second, there is a lack of posture monitoring and feedback mechanisms, making it impossible to capture students' poor postures such as hunching, rounded backs, and unilateral sitting in real time, and failing to provide timely reminders for adjustment. This can easily lead to health problems such as scoliosis and cervical strain in the long term. Third, the functional adaptability is poor. Most chairs can only meet basic short-term usage needs and cannot dynamically adjust the support position and structure as students grow 5-10cm in height each year. The service life is short, and some chairs have poor breathability and fixed lumbar support firmness, which can easily cause discomfort such as stuffiness in the buttocks and lower back pain after prolonged use.

[0004] Therefore, it is necessary to design a student chair with precise dynamic adjustment, real-time posture monitoring, and adaptation to growth and development to solve the problems of low adjustment accuracy, lack of posture feedback, short adaptation period, and insufficient comfort of traditional student chairs. Summary of the Invention

[0005] In view of this, the present invention proposes a student seat that aims to solve the problems of low adjustment precision, lack of posture feedback, short adaptation period and insufficient comfort of traditional student seats.

[0006] In one aspect, the present invention provides a student chair, comprising: A base has a receiving compartment below it, and a first transmission component is installed inside the receiving compartment. The top end of the first transmission component is fixedly connected to the bottom of the base, and the first transmission component is used to drive the base to move up and down in the vertical direction. A chair back is provided on one side of the receiving compartment, and the chair back is hinged to the receiving compartment; a connecting member is provided on the side of the chair back away from the base, the connecting member is composed of a first control node, a second control node and a third control node, the first control node is hinged to the chair back, the second control node is hinged to the receiving compartment, and the third control node is used to cooperate with the first and second control nodes to form an angle adjustment transmission structure to drive the chair back to rotate around the hinge point; An image acquisition module is disposed on both sides and above the seat. The image acquisition module is used to acquire full-body sitting posture image information of the detection object from different angles. The processing module is electrically connected to the image acquisition module, the first transmission component, and the connector. The processing module is used to collect the sitting posture image information of the image acquisition module and construct a real-time sitting posture model of the detected object based on the image information. The processing module is also used to compare the real-time sitting posture model with a preset ergonomic standard model, calculate the sitting posture deviation parameters, and then determine the lifting amount of the base and the tilt angle of the chair back according to the preset correspondence between the deviation parameters and the adjustment parameters, and generate corresponding adjustment control commands. The central control module is electrically connected to the processing module, the first transmission component, and the connector. The central control module is used to receive adjustment and control commands from the processing module, and synchronously control the first transmission component to drive the base movement and the connector to adjust the backrest tilt angle, thereby dynamically optimizing the sitting posture.

[0007] Furthermore, when the central control module performs dynamic optimization of the sitting posture, it also includes: The upper surface of the base is provided with a seat cushion adjustment component and a first sensing area, the first sensing area being used to detect the pressure distribution and contact status information of the buttocks of the object being tested. The backrest is provided with a backrest adjustment component and a second sensing area on the side near the base. The second sensing area is used to detect the back fit and pressure distribution information of the object being tested. The first sensing area, the second sensing area, the seat cushion adjustment component, and the back cushion adjustment component are all electrically connected to the processing module. The processing module is also used to collect hip pressure information of the first sensing area and back contact information of the second sensing area, and to determine the seat cushion contact adjustment value and the back cushion contact value according to the preset ergonomic standard model to generate adjustment control commands. The seat cushion adjustment assembly and the back cushion adjustment assembly are electrically connected to the central control module. The central control module is also used to receive adjustment control commands from the processing module and synchronously control the seat cushion adjustment assembly to adjust the seat cushion state and the back cushion adjustment assembly to adjust the back cushion state.

[0008] Furthermore, when the central control module controls the first transmission assembly to adjust the seat height, it includes: Each of the image acquisition modules first acquires a full-body image of the initial seated posture of the target object. The processing module combines the image with a preset ergonomic standard model to calculate the target seat height. The current base height is acquired through the position sensor of the first transmission component. A first height difference interval and a second height difference interval are preset, and the height difference between the target seat height and the current base height is calculated. The processing module determines the adjustment strategy based on the numerical range of the height difference. When the height difference is zero, it is determined that the current height meets the ergonomic standard, and the processing module sends a height maintenance command to the central control module; When the difference is not zero: If the difference is within the first height difference range, the processing module sends an instruction to the central control module to drive the first transmission component to adjust the first height; If the difference is within the second height difference range, the processing module sends an instruction to the central control module to drive the first transmission component to adjust the second height, so that the second height is higher than the first height; The adjusted base height must be limited to between the minimum and maximum safe heights suitable for students of different heights. During the adjustment process, the image acquisition module captures the lower limb posture of the subject in real time to avoid imbalance caused by sudden changes in height.

[0009] Furthermore, after the first transmission assembly completes the seat height adjustment, it also includes: Each of the image acquisition modules focuses on acquiring images of the lower limbs of the object being detected, while the first sensing area simultaneously acquires data on the pressure distribution of the buttocks. The processing module analyzes the acquired images and pressure data and calculates two key indicators: the foot contact area and the uniformity of pressure on the buttocks. The preset height adjustment meets the following standards: standard foot contact area and standard hip pressure uniformity. The processing module compares these real-time indicators with the standard values ​​to determine the height adjustment effect. When both the foot contact area and the hip pressure uniformity are greater than or equal to the standard foot contact area, the seat height adjustment is determined to have achieved the expected effect. The processing module sends a height lock command to the central control module, and then the seat back angle adjustment process begins. When either the foot contact area is less than the standard foot contact area or the hip pressure uniformity is less than the standard hip pressure uniformity, the processing module corrects the target height based on the current detection data, sends a readjustment command to the central control module, and restarts the seat height adjustment process until the seat height adjustment achieves the expected effect.

[0010] Furthermore, when the central control module controls the connecting parts to adjust the seat back angle, it includes: Based on the seat height meeting the standard, the image acquisition module acquires an image of the upper body of the subject in a seated posture. The processing module combines the image with ergonomic standards to calculate the target backrest tilt angle. The connector is equipped with an angle sensor, which acquires the current backrest angle. A first angle difference range and a second angle difference range are preset, and the angle difference between the target backrest tilt angle and the current backrest angle is calculated. The processing module controls the connector's linkage according to the numerical range of the angle difference. When the angle difference is zero, it is determined that the current backrest angle meets the standard, and the processing module sends a backrest angle maintenance command to the central control module; When the angle difference is not zero: If the angle difference is within the first angle difference range, the processing module sends an instruction to the central control module to adjust the first angle using the drive connector; If the angle difference is within the second angle difference range, the processing module sends an instruction to the central control module to adjust the second angle of the drive connector, and the second angle is greater than the first angle; The adjusted backrest angle must be limited to between the minimum tilt angle that prevents the subject from bending over and the maximum tilt angle that prevents the subject from leaning back. During the adjustment process, the second sensing area provides real-time feedback on the fit between the back and the backrest to prevent the back from losing support due to angle adjustment.

[0011] Furthermore, after the connecting member completes the backrest angle adjustment, it also includes: Each of the image acquisition modules captures a side view image of the spine of the object being tested, while the second sensing area simultaneously acquires back pressure distribution data; the processing module analyzes the images and pressure data and calculates two core indicators: spinal fit and back pressure peak value. The preset standards for backrest angle adjustment are: standard spinal fit and standard peak back pressure. The processing module compares real-time indicators with standard values ​​to determine the effectiveness of the backrest angle adjustment. When the spinal fit is greater than or equal to the standard spinal fit and the peak back pressure is less than or equal to the standard peak back pressure, the backrest angle adjustment is determined to have achieved the expected effect. The processing module sends a backrest angle lock command to the central control module, and then the seat cushion and backrest adjustment process begins. When either the spinal fit is less than the standard spinal fit or the peak back pressure is less than the standard peak back pressure, the processing module corrects the target angle based on the current data, sends a command to the central control module to readjust the backrest angle, and restarts the backrest angle adjustment process until the backrest angle adjustment achieves the expected effect.

[0012] Furthermore, when the central control module synchronously controls the seat cushion adjustment assembly and the backrest adjustment assembly to adjust, it includes: After the seat height and backrest angle meet the standards, the first sensing area collects pressure distribution data of different areas of the buttocks. The processing module combines the data to determine the target adjustment parameters of the seat cushion: one is the height of the front protrusion of the seat cushion, and the other is the softness and hardness of the back of the seat cushion. The second sensing area collects the fit data of different areas of the back. The processing module combines the data to determine the target adjustment parameters of the backrest: one is the position of the lumbar support point of the backrest, and the other is the shoulder support strength of the backrest. The current seat cushion parameters are obtained through the sensors of the seat cushion adjustment component, and the current back cushion parameters are obtained through the sensors of the back cushion adjustment component. The first and second difference ranges of the seat cushion parameters are preset, and the upper limit of the first difference range of the seat cushion parameters is less than the lower limit of the second difference range of the seat cushion parameters; the first and second difference ranges of the back cushion parameters are preset, and the upper limit of the first difference range of the back cushion parameters is less than the lower limit of the second difference range of the back cushion parameters. Calculate the differences between the current and target values ​​of each parameter: the difference in the height of the front protrusion of the seat cushion, the difference in the firmness of the back of the seat cushion, the difference in the position of the lumbar support point of the back cushion, and the difference in the shoulder support strength of the back cushion; the processing module determines the adjustment strategy based on the differences: When all parameter differences are zero, the processing module sends a seat cushion and back cushion maintenance command to the central control module. When the difference between each parameter is within the corresponding first difference range, the processing module sends an instruction to the central control module to adjust the value to the first range value. When the difference between each parameter is within the corresponding second difference interval, the processing module sends an instruction to the central control module to adjust the amount to the value of the second interval, where the value of the second interval is greater than the value of the first interval. Among them, the adjustment of the seat cushion parameters should be limited to the range of the height of the front protrusion of the seat cushion and the range of the softness and hardness of the back of the seat cushion to suit students of different body types; the adjustment of the back cushion parameters should be limited to the range of the position of the lumbar support point of the back cushion and the range of the shoulder support strength of the back cushion to suit students of different body types.

[0013] Furthermore, after the seat cushion adjustment assembly and back cushion adjustment assembly have completed their adjustment, the system further includes: The first and second sensing areas simultaneously collect adjusted pressure and fit data on the buttocks and back. The image acquisition module acquires dynamic images of the subject's full-body sitting posture. The processing module performs comprehensive analysis on the collected data and calculates two key performance indicators: the uniformity of the seat cushion pressure and the fit area of ​​the back cushion. The preset standards for seat and backrest adjustments are: standard seat cushion pressure uniformity and standard backrest contact area. The processing module compares real-time indicators with standard values ​​to determine the overall adjustment effect. When the uniformity of seat cushion pressure is greater than or equal to the uniformity of standard seat cushion pressure and the contact area of ​​back cushion is greater than or equal to the contact area of ​​standard back cushion, it is determined that the full-process adjustment of seat height, backrest angle, seat cushion and back cushion has achieved the expected effect. The processing module sends a system end adjustment command to the central control module, and the seat enters a stable support state. When either the seat cushion pressure uniformity is less than the standard seat cushion pressure uniformity or the backrest contact area is less than the standard backrest contact area, the processing module sends a recalibration command to the central control module and restarts the entire adjustment process in the order of seat height adjustment, backrest angle adjustment, and seat cushion and backrest adjustment. If the standard is not met after three consecutive restarts, the processing module generates a device calibration fault signal and sends it to the central control module to remind staff to conduct a manual inspection.

[0014] Furthermore, a headrest is provided at the top of the chair back, and a pressure sensor is provided inside the headrest. The pressure sensor is used to collect the contact pressure data between the head and the headrest in real time, and presets an effective leaning pressure threshold and a pressure continuous trigger duration; a leg rest is provided at the bottom of the base on the side away from the chair back, and the leg rest can extend from the bottom of the base; the pressure sensor is electrically connected to the processing module to transmit real-time pressure data, and the leg rest is electrically connected to the central control module; The pressure sensor and leg rest form a linkage adjustment mechanism through the processing module and the central control module. The processing module receives the pressure sensor data and makes a status judgment, and the central control module controls the leg rest movement and the chair back adjustment according to the instructions of the processing module.

[0015] Furthermore, after receiving the real-time pressure data transmitted by the pressure sensor, the processing module simultaneously performs two judgments: Pressure validity determination: If the real-time pressure value is greater than or equal to the valid contact pressure threshold, it is determined to be a valid contact state and the timer is started; if the real-time pressure value is less than the valid contact pressure threshold, it is determined to be an invalid contact and the timer is reset. Duration judgment: When the duration of the effective leaning state is greater than or equal to the duration of the continuous pressure trigger, the processing module determines that the user has entered a short rest mode and triggers the headrest, leg rest and backrest linkage adjustment command; if the duration of the effective leaning state is less than the duration of the continuous pressure trigger, the current sitting posture is maintained.

[0016] Furthermore, the execution process of the linkage adjustment command includes: Backrest angle synchronous adjustment: The processing module combines the current backrest reference angle to calculate the target tilt angle in rest mode, increases it to a third angle based on the original reference angle, generates a backrest adjustment command and sends it to the central control module; the central control module controls the connector to drive the backrest to adjust slowly, while the second sensing area provides real-time feedback on the fit between the back and the backrest. If the fit is lower than 90% of the standard spinal fit, the processing module immediately corrects the adjustment angle to ensure that the back always receives stable support; Leg rest extension synchronized with the backrest adjustment: The processing module determines the target extension length of the leg rest based on the current base height and the lower limb length data collected by the image acquisition module. The processing module generates a leg rest extension command and sends it to the central control module. The central control module controls the electric push rod drive component built into the leg rest to smoothly extend the leg rest from the storage slot at the bottom of the base to the target length. During the extension process, the image acquisition module captures the lower limb posture in real time, and the first sensing area simultaneously monitors the hip pressure distribution. If a sudden drop in hip pressure of 20% or more is detected or the lower limbs become unbalanced or deviate, the central control module immediately pauses the leg rest extension and continues adjustment after the posture stabilizes. After the linkage adjustment is completed, the processing module continuously receives pressure sensor data: if the real-time pressure value is less than the effective leaning pressure threshold and the duration is greater than or equal to 10 seconds, it is determined that the user has ended the rest mode, and the processing module generates a reset command and sends it to the central control module; the central control module synchronously controls the connecting parts to drive the backrest to return to the reference angle before rest, and the leg rest is retracted to the bottom of the base through the electric push rod, and the entire seat is restored to the standard sitting posture parameters in the learning state.

[0017] Furthermore, handrails are provided on both sides of the base.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The base is precisely raised and lowered by the first transmission component. Combined with the angle adjustment transmission structure formed by the three control nodes of the connecting parts, the precise lifting and tilting angle values ​​calculated by the processing module based on the body data of the detected object, and the synchronous control of the central control module, it replaces the traditional fixed gear manual adjustment. It can accurately match the body proportions of students of different heights and weights, avoid problems such as the waist being suspended in the air and the feet not being able to land stably, and greatly improve the adjustment accuracy.

[0019] 2. The image acquisition modules on both sides and above the seat collect multi-angle full-body sitting posture images in real time. The processing module constructs a real-time sitting posture model and compares it with the ergonomic standard model. It can promptly capture poor sitting postures such as hunching and slouching and calculate deviation parameters to form dynamic feedback, providing a basis for sitting posture adjustment and effectively avoiding scoliosis and cervical strain caused by long-term poor sitting posture.

[0020] 3. The processing module can dynamically update the real-time sitting posture model according to the student's height growth, and simultaneously adjust the base lifting amount and backrest tilt angle. It can adapt to the physical needs of students at different growth stages without replacing the seat, significantly extending the service life of the seat and reducing the cost of use.

[0021] 4. By dynamically optimizing the base height and backrest tilt angle, the system ensures that students' lower back and back receive proper support when sitting, reducing local pressure and indirectly improving discomfort such as stuffiness in the buttocks and lower back pain caused by improper support in traditional chairs, thus enhancing the comfort of sitting posture during long periods of study. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of a student seat provided in an embodiment of the present invention; Figure 2 Rear view of a student seat provided in an embodiment of the present invention; Figure 3 A functional block diagram of a student chair provided in an embodiment of the present invention; Figure 4 A flowchart illustrating the workflow of a student chair provided in an embodiment of the present invention.

[0023] In the diagram, 100 is the base; 110 is the storage compartment; 111 is the first transmission assembly; 200 is the backrest; 210 is the connector; 300 is the headrest; 400 is the leg rest; and 500 is the armrest. Detailed Implementation

[0024] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] like Figures 1-3 As shown in some embodiments of this application, this embodiment provides a student seat, including: a base 100, a backrest 200, an image acquisition module, a processing module, and a central control module.

[0026] Specifically, the base 100 has a receiving compartment 110 below it. The receiving compartment 110 has a first transmission component 111 inside it. The top of the first transmission component 111 is fixedly connected to the bottom of the base 100. The first transmission component 111 is used to drive the base 100 to move up and down in the vertical direction. The chair back 200 is located on one side of the receiving compartment 110 and is hinged to the receiving compartment 110. A connector 210 is provided on the side of the chair back 200 away from the base 100. The connector 210 consists of a first control node, a second control node and a third control node. The first control node is hinged to the chair back 200, the second control node is hinged to the receiving compartment 110, and the third control node is used to cooperate with the first and second control nodes to form an angle adjustment transmission structure to drive the chair back 200 to rotate around the hinge point. The image acquisition module is located on both sides and above the seat. The image acquisition module is used to acquire full-body sitting posture image information of the detection object from different angles. The processing module is electrically connected to the image acquisition module, the first transmission component 111, and the connector 210. The processing module is used to collect the sitting posture image information of the image acquisition module and construct a real-time sitting posture model of the detected object based on the image information. The processing module is also used to compare the real-time sitting posture model with a preset ergonomic standard model, calculate the sitting posture deviation parameters, and then determine the lifting amount of the base 100 and the tilt angle value of the backrest 200 according to the preset deviation parameters and adjustment parameters, and generate corresponding adjustment control commands. The central control module is electrically connected to the processing module, the first transmission component 111, and the connector 210. The central control module is used to receive adjustment and control commands from the processing module, and synchronously control the first transmission component 111 to drive the base 100 to move and the connector 210 to adjust the tilt angle of the chair back 200, so as to dynamically optimize the sitting posture.

[0027] Specifically, handrails 500 are provided on both sides of the base 100.

[0028] The above embodiment uses the first transmission component 111 to drive the base 100 to precisely raise and lower, combined with the angle adjustment transmission structure formed by the three control nodes of the connecting piece 210. This, along with the processing module calculating the precise lifting and tilt angle values ​​based on the body data of the detected object, and the synchronous control of the central control module, replaces the traditional fixed-gear manual adjustment. This allows for precise matching of the body proportions of students of different heights and weights, avoiding problems such as the lower back being unsupported or the feet not being able to land stably, significantly improving adjustment accuracy. The image acquisition modules on both sides and above the seat collect multi-angle full-body sitting posture images in real time. The processing module constructs a real-time sitting posture model and compares it with an ergonomic standard model, promptly capturing poor sitting postures such as hunching and calculating deviation parameters, forming dynamic feedback to provide a basis for posture adjustment, effectively avoiding scoliosis and cervical strain caused by long-term poor sitting posture. The processing module can dynamically update the real-time sitting posture model according to the student's height growth, synchronously adjusting the lifting amount of the base 100 and the tilt angle of the backrest 200. This allows for adaptation to the student's different growth stages without replacing the seat, significantly extending the seat's lifespan and reducing usage costs. By dynamically optimizing the height of the base 100 and the tilt angle of the backrest 200, the lower back and back of students are ensured to receive close support when sitting, reducing local pressure and indirectly improving discomfort such as stuffiness in the buttocks and soreness in the lower back caused by improper support in traditional chairs, thus enhancing the comfort of sitting posture during long periods of study.

[0029] In a specific embodiment of this application, the above steps are implemented as follows: When a student uses the chair, the image acquisition modules on both sides and above it first acquire real-time images of the student's full-body sitting posture from different angles; after receiving this information, the processing module constructs a real-time sitting posture model, compares it with a preset ergonomic standard model to calculate the sitting posture deviation parameters, and then determines the lifting amount of the base 100 and the tilt angle of the backrest 200 based on the correspondence between the deviation parameters and the adjustment parameters, and generates adjustment control commands; after receiving the commands, the central control module synchronously controls the first transmission component 111, which is fixedly connected to the bottom of the base 100 inside the receiving compartment 110. The drive base 100 is precisely raised and lowered in the vertical direction, and the connecting piece 210 on the side of the backrest 200 away from the base 100 (which is an angle adjustment transmission structure formed by the first control node hinged to the backrest 200, the second control node hinged to the receiving compartment 110, and the third control node) drives the backrest 200 to rotate around the hinge point, ultimately achieving dynamic optimization of sitting posture. This not only solves the problem of low adjustment precision of traditional seats and accurately matches the body proportions of students of different heights and weights, but also improves poor sitting postures such as hunchback and round back through real-time monitoring and feedback. It can also dynamically adapt to the needs of students as their height increases and improve the comfort of long-term study.

[0030] The above scenarios are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0031] like Figures 1-4 As shown, when the central control module performs dynamic optimization of the sitting posture, it also includes: The upper surface of the base 100 is provided with a seat cushion adjustment component and a first sensing area. The first sensing area is used to detect the pressure distribution and contact status information of the buttocks of the object being tested. The backrest 200 is provided with a backrest adjustment component and a second sensing area on the side near the base 100. The second sensing area is used to detect the back fit and pressure distribution information of the object being tested. The first sensing area, the second sensing area, the seat cushion adjustment component, and the back cushion adjustment component are all electrically connected to the processing module. The processing module is also used to collect the hip pressure information of the first sensing area and the back contact information of the second sensing area, and to determine the seat cushion fit adjustment value and the back cushion fit according to the preset ergonomic standard model to generate adjustment control commands. The seat cushion adjustment assembly and the back cushion adjustment assembly are electrically connected to the central control module. The central control module is also used to receive adjustment control commands from the processing module and synchronously control the seat cushion adjustment assembly to adjust the seat cushion state and the back cushion adjustment assembly to adjust the back cushion state.

[0032] Specifically, when the central control module controls the first transmission assembly 111 to adjust the seat height, it includes: Each image acquisition module first acquires a full-body image of the initial seated posture of the target object. The processing module combines the image with a preset ergonomic standard model to calculate the target seat height. The current base height 100 is acquired via the position sensor of the first transmission component 111. A first height difference range and a second height difference range are preset, and the height difference between the target seat height and the current base height is calculated. The processing module determines the adjustment strategy based on the numerical range of the height difference. When the height difference is zero, it is determined that the current height meets the ergonomic standard, and the processing module sends a height maintenance command to the central control module; When the difference is not zero: If the difference is within the first height difference range, the processing module sends an instruction to the central control module to drive the first transmission component 111 to adjust the first height; If the difference is within the second height difference range, the processing module sends an instruction to the central control module to drive the first transmission component 111 to adjust the second height, and the second height is higher than the first height; The adjusted base height 100 must be limited to between the minimum and maximum safe heights suitable for students of different heights. During the adjustment process, the image acquisition module captures the lower limb posture of the subject in real time to avoid imbalance caused by sudden changes in height.

[0033] Specifically, during the adjustment process, the image acquisition module captures the lower limb posture of the detected object in real time: if no lower limb swaying is detected, the current adjustment speed is maintained; if lower limb swaying (signs of imbalance) are detected, the processing module immediately sends a pause adjustment command to the central control module, and after 5 seconds, the adjustment continues at 50% of the original adjustment speed until the target height is reached.

[0034] Specifically, after the first transmission assembly 111 completes the seat height adjustment, it also includes: Each image acquisition module focuses on acquiring images of the lower limbs of the subject being detected, while the first sensing area simultaneously acquires data on the pressure distribution of the buttocks. The processing module analyzes the acquired images and pressure data to calculate two key indicators: the contact area of ​​the foot and the uniformity of pressure on the buttocks. The preset height adjustment meets the following standards: standard foot contact area and standard hip pressure uniformity. The processing module compares these real-time indicators with the standard values ​​to determine the height adjustment effect. When both the foot contact area and the hip pressure uniformity are greater than or equal to the standard foot contact area, the seat height adjustment is determined to have achieved the expected effect. The processing module sends a height lock command to the central control module, and then enters the 200° angle adjustment process of the seat back. When either the foot contact area is less than the standard foot contact area or the hip pressure uniformity is less than the standard hip pressure uniformity, the processing module corrects the target height based on the current detection data, sends a readjustment command to the central control module, and restarts the seat height adjustment process until the seat height adjustment achieves the expected effect.

[0035] Specifically, when the central control module controls the connector 210 to adjust the seat back angle 200, it includes: Based on the seat height meeting the standard, the image acquisition module acquires an image of the upper body of the subject in a seated posture. The processing module combines the image with ergonomic standards to calculate the target chair back tilt angle of 200°. The connector 210 is equipped with an angle sensor, which acquires the current chair back angle of 200°. A first angle difference range and a second angle difference range are preset, and the angle difference between the target chair back tilt angle and the current chair back angle is calculated. The processing module controls the connector 210 to move in tandem according to the range of the angle difference. When the angle difference is zero, it is determined that the current 200° angle of the chair back meets the standard, and the processing module sends a 200° angle maintenance command to the central control module. When the angle difference is not zero: If the angle difference is within the first angle difference range, the processing module sends an instruction to the central control module to adjust the first angle using the drive connector 210; If the angle difference is within the second angle difference range, the processing module sends an instruction to the central control module to adjust the second angle through the drive connector 210, and the second angle is greater than the first angle; The adjusted backrest angle 200 must be limited to between the minimum tilt angle that prevents the subject from bending over and the maximum tilt angle that prevents the subject from leaning back. During the adjustment process, the second sensing area provides real-time feedback on the fit between the back and the backrest 200 to prevent the back from losing support due to angle adjustment.

[0036] Specifically, after the connector 210 completes the backrest angle adjustment 200, it also includes: Each image acquisition module captures a side view image of the spine of the object being tested, while the second sensing area simultaneously acquires back pressure distribution data; the processing module analyzes the images and pressure data to calculate two core indicators: spinal fit and back pressure peak value. The preset standards for a 200° backrest adjustment are: standard spinal fit and standard peak back pressure. The processing module compares real-time indicators with these standard values ​​to determine the effectiveness of the 200° backrest adjustment. When the spinal fit is greater than or equal to the standard spinal fit and the peak back pressure is less than or equal to the standard peak back pressure, it is determined that the 200° angle adjustment of the chair back has achieved the expected effect. The processing module sends a 200° angle locking command to the central control module, and then the seat and back cushion adjustment process begins. When either the spinal fit is less than the standard spinal fit or the peak back pressure is less than the standard peak back pressure, the processing module corrects the target angle based on the current data, sends a command to the central control module to readjust the backrest angle by 200 degrees, and restarts the backrest angle adjustment process until the backrest angle adjustment reaches the expected effect.

[0037] Specifically, when the central control module synchronously controls the seat cushion adjustment assembly and the backrest adjustment assembly to adjust, it includes: After the seat height and backrest angle are both within the specified range, the first sensing area collects pressure distribution data for different areas of the buttocks. The processing module combines the data to determine the target adjustment parameters of the seat cushion: one is the height of the front protrusion of the seat cushion, and the other is the firmness of the back of the seat cushion. The second sensing area collects fit data for different areas of the back, and the processing module combines the data to determine the target adjustment parameters of the backrest: one is the position of the lumbar support point of the backrest, and the other is the shoulder support strength of the backrest. The current seat cushion parameters are obtained through the sensors of the seat cushion adjustment component, and the current back cushion parameters are obtained through the sensors of the back cushion adjustment component. The first and second difference ranges of seat cushion parameters are preset, and the upper limit of the first difference range of seat cushion parameters is less than the lower limit of the second difference range of seat cushion parameters; the first and second difference ranges of back cushion parameters are preset, and the upper limit of the first difference range of back cushion parameters is less than the lower limit of the second difference range of back cushion parameters. Calculate the differences between the current and target values ​​of each parameter: the difference in the height of the front protrusion of the seat cushion, the difference in the firmness of the back of the seat cushion, the difference in the position of the lumbar support point of the back cushion, and the difference in the shoulder support strength of the back cushion; the processing module determines the adjustment strategy based on the differences: When all parameter differences are zero, the processing module sends a seat cushion and back cushion maintenance command to the central control module. When the difference between each parameter is within the corresponding first difference range, the processing module sends an instruction to the central control module to adjust the value to the first range value. When the difference between each parameter is within the corresponding second difference interval, the processing module sends an instruction to the central control module to adjust the amount to the value of the second interval, where the value of the second interval is greater than the value of the first interval. Among them, the adjustment of the seat cushion parameters should be limited to the range of the height of the front protrusion of the seat cushion and the range of the softness and hardness of the back of the seat cushion to suit students of different body types; the adjustment of the back cushion parameters should be limited to the range of the position of the lumbar support point of the back cushion and the range of the shoulder support strength of the back cushion to suit students of different body types.

[0038] Specifically, after the seat cushion adjustment assembly and backrest adjustment assembly are adjusted, the following are also included: The first and second sensing areas simultaneously collect adjusted pressure and fit data on the buttocks and back. The image acquisition module acquires dynamic images of the subject's full-body sitting posture. The processing module performs comprehensive analysis on the collected data and calculates two key performance indicators: the uniformity of the seat cushion pressure and the fit area of ​​the back cushion. The preset standards for seat and backrest adjustments are: standard seat cushion pressure uniformity and standard backrest contact area. The processing module compares real-time indicators with standard values ​​to determine the overall adjustment effect. When the uniformity of seat cushion pressure is greater than or equal to the uniformity of standard seat cushion pressure and the contact area of ​​back cushion is greater than or equal to the contact area of ​​standard back cushion, it is determined that the seat height, backrest angle of 200° and the full process adjustment of seat cushion and back cushion have achieved the expected effect. The processing module sends a system end adjustment command to the central control module, and the seat enters a stable support state. When either the seat cushion pressure uniformity is less than the standard seat cushion pressure uniformity or the backrest contact area is less than the standard backrest contact area, the processing module sends a recalibration command to the central control module, restarting the entire adjustment process in the order of seat height adjustment, backrest 200° angle adjustment, and seat cushion and backrest adjustment. If the standard is not met after three consecutive restarts, the processing module generates a device calibration fault signal and sends it to the central control module to remind staff to conduct a manual inspection.

[0039] Specifically, the first sensing area uses distributed sensing units to capture in real time the integrity of the edge of the contact between the buttocks and the cushion, the dynamic trend of pressure changes in different areas (such as the pressure difference between the ischial tuberosity area and the area under the thigh), and the continuity of the contact state (such as whether there is a local suspension). The second sensing area uses a matrix sensing structure to not only detect the tightness of the fit between the back and the back cushion, but also to identify the pressure gradient changes in different areas of the back (such as the scapula, lumbar spine, and thoracic spine), as well as the distribution of the fit gap (such as whether there is an obvious gap in the waist).

[0040] Specifically, when the processing module combines the preset ergonomic standard model, the model integrates the physiological characteristics of students of different age groups, such as the physiological curvature of the spine, the distribution pattern of the hip bones, and the support needs of the back muscle groups, so that the calculation of the fit adjustment value is more suitable for the growth and development characteristics of the student group.

[0041] Specifically, when the central control module controls the first transmission component 111 to adjust the seat height, each image acquisition module adopts a multi-view collaborative acquisition method (such as capturing the vertical relationship between the lower limbs and the ground from the front and recording the knee bending angle from the side) to ensure that the initial full-body image of the sitting posture can completely reflect the spatial positional relationship between the lower limbs, the seat, and the ground; the position sensor of the first transmission component 111 has real-time data refresh capability, which can dynamically correct the measurement deviation of the current base 100 height and avoid the cumulative error caused by mechanical clearance during the adjustment process.

[0042] Specifically, during the adjustment process, the image acquisition module judges the lower limb swaying based on the displacement fluctuation amplitude of key points of the lower limb (such as ankle, knee, and groin) in multiple consecutive frames of images. When the fluctuation exceeds the preset stability threshold (not a specific value), it is judged as an unbalanced sign. During the 5-second pause adjustment, the image acquisition module continuously monitors the stability of the lower limb posture, providing a status basis for subsequent deceleration adjustment.

[0043] Specifically, in the standard judgment after the first transmission component 111 completes the height adjustment, the foot contact area refers to the proportion of the actual contact area between the foot and the ground to the total area of ​​the foot, reflecting the stability of the foot bearing weight; the buttock pressure uniformity is reflected by calculating the dispersion of the pressure values ​​of each sensing area of ​​the buttock (the lower the dispersion, the higher the uniformity), reflecting the balance of the seat cushion's support for the buttock.

[0044] Specifically, when the central control module controls the connector 210 to adjust the angle of the chair back 200, the image acquisition module captures the upper body sitting posture image, focusing on the relative positional relationship of the shoulder horizontal line, the lumbar curve tangent line, and the neck tilt angle. It calculates the target angle by combining the angle range of the natural physiological curvature of the spine (such as the coordinated curvature characteristics of the cervical, thoracic, and lumbar vertebrae). The angle sensor of the connector 210 can provide real-time feedback on the rate of change of the relative tilt angle between the chair back 200 and the base 100, providing data support for the dynamic control of the adjustment speed.

[0045] Specifically, during the 200° angle adjustment of the backrest, if the second sensing area detects that the gap between a key area of ​​the back (such as the lumbar support point) and the backrest exceeds the set range, the central control module will immediately slow down the adjustment speed until the area is restored to the correct fit before continuing to adjust according to the original strategy, thus avoiding postural imbalance caused by partial loss of support.

[0046] Specifically, when the central control module simultaneously controls the seat cushion adjustment component and the backrest adjustment component, the height adjustment of the front protrusion of the seat cushion aims to support the lower thighs and avoid obstructing blood circulation. Its height change must adapt to the tilt angle of the thighs contacting the seat cushion. The firmness of the rear seat cushion is dynamically adjusted based on pressure feedback from the ischial tuberosity area of ​​the buttocks, balancing support strength and contact comfort. The lumbar support point of the backrest needs to be precisely matched to the natural apex of the lumbar spine of the tested subject, while the shoulder support strength is adjusted according to the shoulder width and muscle thickness characteristics to ensure a close fit to the shoulder contour without localized pressure.

[0047] In a specific embodiment of this application, the above steps are implemented as follows: When a student uses the chair, the image acquisition module first acquires an initial full-body image of the sitting posture. The processing module calculates the target height using an ergonomic standard model. The first transmission component 111 adjusts the height of the base 100 according to the difference between the current height and the target height (divided into first and second height difference intervals). During the process, the image acquisition module monitors the lower limb posture in real time. If there is any shaking, it pauses for 5 seconds and then adjusts at 50% speed. After adjustment, the height is verified by the foot contact area and the uniformity of the buttock pressure. If it does not meet the standard, the target height is corrected and readjusted. After the height meets the standard, the image acquisition module acquires an upper body image to calculate the target backrest angle 200°. The connecting piece 210 adjusts the height according to the difference between the current angle and the target angle (divided into first and second angles). The angle is adjusted by the first and second sensing areas (within the degree difference range). During the process, the second sensing area monitors the back fit status. After adjustment, the spinal fit and back pressure peak are verified. If the standard is not met, the angle is corrected and readjusted. After both meet the standard, the first and second sensing areas collect the pressure and fit data of the buttocks and back respectively. The processing module determines the target parameters of the seat cushion (front protrusion height, back softness and hardness) and the back cushion (lumbar support point position, shoulder support strength). According to the difference between the current parameters and the target parameters (corresponding to the first and second difference ranges), the seat cushion and back cushion adjustment components are adjusted. After adjustment, the seat cushion pressure uniformity and back cushion fit area are verified. If the standard is met, it enters a stable state. If the standard is not met, the adjustment is restarted in the order of height, backrest 200, seat cushion and back cushion. If it fails 3 times in a row, a fault signal is generated to remind manual inspection.

[0048] The above scenarios are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0049] Understandably, this student chair significantly improves safety, adaptability, and ergonomic fit through phased precise adjustment and multi-dimensional monitoring and verification: height adjustment is done in stages according to the difference range, combined with real-time monitoring of lower limb posture (pausing and slowing down when shaking) and verification of foot contact area and hip pressure uniformity, avoiding the problems of low precision and easy imbalance of traditional adjustments, and accurately adapting to students of different heights; the 200° angle adjustment of the backrest is controlled by the difference range, and verified by spinal fit and back pressure peak, ensuring stable back support and reducing the spinal burden caused by bending over or leaning back; the seat cushion and back cushion are adjusted based on pressure distribution data to personalize the front protrusion, back softness and hardness, lumbar support points, and shoulder strength, adapting to different body types and improving comfort during long periods of sitting; the entire process is set up with a verification and restart mechanism after adjustment to ensure the adjustment effect. If the adjustment fails to meet the standard for 3 consecutive times, a fault signal is generated to remind manual inspection, ensuring the reliability of the equipment. Ultimately, it solves the problems of inaccurate adjustment, lack of feedback, poor adaptability, and improper support of traditional student chairs, providing students with healthy sitting posture support that conforms to their growth needs and effectively preventing problems such as spinal strain.

[0050] like Figures 1-4 As shown, a headrest 300 is installed at the top of the backrest 200. A pressure sensor is installed inside the headrest 300. The pressure sensor is used to collect the contact pressure data between the head and the headrest 300 in real time, and presets the effective leaning pressure threshold and the pressure continuous triggering duration. A leg rest 400 is installed at the bottom of the base 100 on the side away from the backrest 200. The leg rest 400 can extend from the bottom of the base 100. The pressure sensor is electrically connected to the processing module to transmit real-time pressure data, and the leg rest 400 is electrically connected to the central control module. The pressure sensor and leg rest 400 form a linkage adjustment mechanism through the processing module and the central control module. The processing module receives the pressure sensor data and makes a status judgment, and the central control module controls the movement of the leg rest 400 and the adjustment of the backrest 200 according to the instructions of the processing module.

[0051] Specifically, after receiving the real-time pressure data transmitted by the pressure sensor, the processing module simultaneously performs two judgments: Pressure validity determination: If the real-time pressure value is greater than or equal to the valid contact pressure threshold, it is determined to be a valid contact state and the timer is started; if the real-time pressure value is less than the valid contact pressure threshold, it is determined to be an invalid contact and the timer is reset. Duration judgment: When the duration of the effective leaning state is greater than or equal to the duration of the continuous pressure triggering, the processing module determines that the user has entered a short rest mode and triggers the linkage adjustment command of the headrest 300, leg rest 400, and backrest 200; if the duration of the effective leaning state is less than the duration of the continuous pressure triggering, the current sitting posture is maintained.

[0052] Specifically, the execution process of the linkage adjustment command includes: Backrest 200 Angle Synchronous Adjustment: The processing module combines the current backrest 200 reference angle to calculate the target tilt angle in rest mode, increases it to a third angle based on the original reference angle, generates a backrest 200 adjustment command and sends it to the central control module; the central control module controls the connector 210 to drive the backrest 200 to adjust slowly, while the second sensing area provides real-time feedback on the fit between the back and the backrest 200. If the fit is lower than 90% of the standard spinal fit, the processing module immediately corrects the adjustment angle to ensure that the back always receives stable support; The leg rest 400 extends synchronously: Synchronized with the adjustment of the backrest 200, the processing module determines the target extension length of the leg rest 400 based on the current height of the base 100 and the lower limb length data collected by the image acquisition module. The processing module generates an extension command for the leg rest 400 and sends it to the central control module. The central control module controls the electric push rod drive component built into the leg rest 400, causing the leg rest 400 to smoothly extend from the storage slot at the bottom of the base 100 to the target length. During the extension process, the image acquisition module captures the lower limb posture in real time and simultaneously monitors the hip pressure distribution in the first sensing area. If a sudden drop in hip pressure of 20% or more is detected, or if the lower limbs show imbalance or deviation, the central control module immediately pauses the extension of the leg rest 400 and resumes adjustment after the posture stabilizes. After the linkage adjustment is completed, the processing module continuously receives pressure sensor data: if the real-time pressure value is less than the effective leaning pressure threshold and the duration is greater than or equal to 10 seconds, it is determined that the user has ended the rest mode, and the processing module generates a reset command and sends it to the central control module; the central control module synchronously controls the connector 210 to drive the backrest 200 to return to the reference angle before resting, and the leg rest 400 is retracted to the bottom of the base 100 through the electric push rod, and the entire seat is restored to the standard sitting posture parameters in the learning state.

[0053] Understandably, this student chair achieves multiple beneficial effects through the linkage adjustment design of the headrest 300 pressure sensor, leg rest 400, and backrest 200: it can automatically identify students' short-term rest needs by judging the effectiveness and duration of pressure, triggering adjustments without manual operation, thus improving ease of use; when adjusting the backrest 200, it adjusts the angle in real time based on the backrest fit, and when the leg rest 400 extends, it monitors the pressure on the buttocks and the lower limb posture and pauses in time, effectively avoiding the risk of imbalance during adjustment and ensuring safety; in rest mode, the backrest 200 increases the tilt angle and the leg rest 400 extends to support the lower limbs, providing students with more relaxed sitting posture support, relieving back and leg fatigue after long periods of study, and improving rest comfort; and after rest, it can automatically reset to the standard parameters of the study state, allowing students to quickly return to study without readjustment, balancing rest needs and learning efficiency, and solving the problems of traditional student chairs lacking targeted rest adaptation, cumbersome manual adjustment, and insufficient safety.

[0054] In a specific embodiment of this application, the above steps are implemented as follows: When a student uses the chair, an initial full-body sitting posture image is first acquired through the image acquisition modules on both sides and above the chair. The processing module calculates the target height using a preset ergonomic standard model. The position sensor of the first transmission component 111 acquires the current height of the base 100 and calculates the height difference. An adjustment strategy is determined based on the first and second height difference ranges. During the adjustment process, the image acquisition module monitors the lower limb posture in real time. If swaying occurs, the adjustment is paused and slowed down. After adjustment, the foot contact area and hip pressure data are verified using the lower limb images and hip pressure data. The system monitors the evenness of hip pressure. Once the target height is met, it locks the height; otherwise, it corrects and readjusts the target height. After the height is met, the image acquisition module acquires an upper body image to calculate the target backrest angle of 200 degrees. The angle sensor on connector 210 acquires the current angle and adjusts it according to the difference between the first and second angles. During this process, the second sensing area monitors the backrest fit. After adjustment, the spinal side view image and back pressure data are used to verify the spinal fit and peak back pressure. Once the target height is met, the angle is locked; otherwise, it corrects and readjusts the target angle. Once both are met, the first sensing area acquires hip pressure to determine the target parameters of the seat cushion (front protrusion height, ...). The backrest's firmness is assessed using a second sensing area that collects back contact data to determine target parameters for the backrest (lumbar support point position, shoulder support strength). The seat and backrest are adjusted according to parameter difference ranges. After adjustment, pressure uniformity and backrest contact area are verified using pressure, contact data, and final images. If the target is met, stable support is achieved; otherwise, the adjustment is restarted in the order of height - backrest 200 - seat and backrest. Three consecutive failures generate a fault signal to prompt manual inspection. Simultaneously, a pressure sensor on the headrest 300 at the top of the backrest 200 collects head contact pressure in real time, and the processing module determines whether the pressure reaches an effective threshold. If the duration is sufficient, a short rest mode is triggered: the backrest 200 increases to a third angle based on the baseline angle, and is adjusted in real time to ensure back support. The leg rest 400 extends from the bottom of the base 100 by an electric push rod according to the height of the base 100 and the length of the lower limbs. During the extension, the pressure on the buttocks drops suddenly and the lower limbs become unbalanced. If any abnormality occurs, the rest is paused immediately. After the rest ends (the pressure is below the threshold and lasts for 10 seconds), the backrest 200 returns to its original position and the leg rest 400 retracts to the bottom of the base 100, resuming the learning state. The armrests 500 on both sides of the base 100 provide support for the student throughout the process.

[0055] The above scenarios are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0056] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0057] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0058] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0059] These computer program instructions can also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A student chair, characterized in that, include: A base has a receiving compartment below it, and a first transmission component is installed inside the receiving compartment. The top end of the first transmission component is fixedly connected to the bottom of the base, and the first transmission component is used to drive the base to move up and down in the vertical direction. A chair back is provided on one side of the receiving compartment, and the chair back is hinged to the receiving compartment; a connecting member is provided on the side of the chair back away from the base, the connecting member is composed of a first control node, a second control node and a third control node, the first control node is hinged to the chair back, the second control node is hinged to the receiving compartment, and the third control node is used to cooperate with the first and second control nodes to form an angle adjustment transmission structure to drive the chair back to rotate around the hinge point; An image acquisition module is disposed on both sides and above the seat. The image acquisition module is used to acquire full-body sitting posture image information of the detection object from different angles. The processing module is electrically connected to the image acquisition module, the first transmission component, and the connector. The processing module is used to collect the sitting posture image information of the image acquisition module and construct a real-time sitting posture model of the detected object based on the image information. The processing module is also used to compare the real-time sitting posture model with a preset ergonomic standard model, calculate the sitting posture deviation parameters, and then determine the lifting amount of the base and the tilt angle of the chair back according to the preset correspondence between the deviation parameters and the adjustment parameters, and generate corresponding adjustment control commands. The central control module is electrically connected to the processing module, the first transmission component, and the connector. The central control module is used to receive adjustment and control commands from the processing module, and synchronously control the first transmission component to drive the base movement and the connector to adjust the backrest tilt angle, thereby dynamically optimizing the sitting posture.

2. The student seat according to claim 1, characterized in that, When the central control module performs dynamic optimization of sitting posture, it also includes: The upper surface of the base is provided with a seat cushion adjustment component and a first sensing area, the first sensing area being used to detect the pressure distribution and contact status information of the buttocks of the object being tested. The backrest is provided with a backrest adjustment component and a second sensing area on the side near the base. The second sensing area is used to detect the back fit and pressure distribution information of the object being tested. The first sensing area, the second sensing area, the seat cushion adjustment component, and the back cushion adjustment component are all electrically connected to the processing module. The processing module is also used to collect hip pressure information of the first sensing area and back contact information of the second sensing area, and to determine the seat cushion contact adjustment value and the back cushion contact value according to the preset ergonomic standard model to generate adjustment control commands. The seat cushion adjustment assembly and the back cushion adjustment assembly are electrically connected to the central control module. The central control module is also used to receive adjustment control commands from the processing module and synchronously control the seat cushion adjustment assembly to adjust the seat cushion state and the back cushion adjustment assembly to adjust the back cushion state.

3. The student seat according to claim 2, characterized in that, When the central control module controls the first transmission component to adjust the seat height, it includes: Each of the image acquisition modules first acquires a full-body image of the initial seated posture of the target object. The processing module combines the image with a preset ergonomic standard model to calculate the target seat height. The current base height is acquired through the position sensor of the first transmission component. A first height difference interval and a second height difference interval are preset, and the height difference between the target seat height and the current base height is calculated. The processing module determines the adjustment strategy based on the numerical range of the height difference. When the height difference is zero, it is determined that the current height meets the ergonomic standard, and the processing module sends a height maintenance command to the central control module; When the difference is not zero: If the difference is within the first height difference range, the processing module sends an instruction to the central control module to drive the first transmission component to adjust the first height; If the difference is within the second height difference range, the processing module sends an instruction to the central control module to drive the first transmission component to adjust the second height, so that the second height is higher than the first height; The adjusted base height must be limited to between the minimum and maximum safe heights suitable for students of different heights. During the adjustment process, the image acquisition module captures the lower limb posture of the subject in real time to avoid imbalance caused by sudden changes in height.

4. The student seat according to claim 3, characterized in that, After the first transmission assembly completes the seat height adjustment, it also includes: Each of the image acquisition modules focuses on acquiring images of the lower limbs of the object being detected, while the first sensing area simultaneously acquires data on the pressure distribution of the buttocks. The processing module analyzes the acquired images and pressure data and calculates two key indicators: the foot contact area and the buttock pressure uniformity. The preset height adjustment meets the following standards: standard foot contact area and standard hip pressure uniformity. The processing module compares these real-time indicators with the standard values ​​to determine the height adjustment effect. When both the foot contact area and the hip pressure uniformity are greater than or equal to the standard foot contact area, the seat height adjustment is determined to have achieved the expected effect. The processing module sends a height lock command to the central control module, and then enters the seat back angle adjustment process. When either the foot contact area is less than the standard foot contact area or the hip pressure uniformity is less than the standard hip pressure uniformity, the processing module corrects the target height based on the current detection data, sends a readjustment command to the central control module, and restarts the seat height adjustment process until the seat height adjustment achieves the expected effect.

5. The student seat according to claim 4, characterized in that, When the central control module controls the connector to adjust the chair back angle, it includes: Based on the seat height meeting the standard, the image acquisition module acquires an image of the upper body of the subject in a seated posture. The processing module combines the image with ergonomic standards to calculate the target backrest tilt angle. The connector is equipped with an angle sensor, which acquires the current backrest angle. A first angle difference range and a second angle difference range are preset, and the angle difference between the target backrest tilt angle and the current backrest angle is calculated. The processing module controls the connector's linkage according to the numerical range of the angle difference. When the angle difference is zero, it is determined that the current backrest angle meets the standard, and the processing module sends a backrest angle maintenance command to the central control module; When the angle difference is not zero: If the angle difference is within the first angle difference range, the processing module sends an instruction to the central control module to adjust the first angle using the drive connector; If the angle difference is within the second angle difference range, the processing module sends an instruction to the central control module to adjust the second angle of the drive connector, and the second angle is greater than the first angle; The adjusted backrest angle must be limited to between the minimum tilt angle that prevents the subject from bending over and the maximum tilt angle that prevents the subject from leaning back. During the adjustment process, the second sensing area provides real-time feedback on the fit between the back and the backrest to prevent the back from losing support due to angle adjustment.

6. The student seat according to claim 5, characterized in that, After the connecting piece completes the backrest angle adjustment, it also includes: Each of the image acquisition modules captures a side view image of the spine of the object being tested, while the second sensing area simultaneously acquires back pressure distribution data; the processing module analyzes the images and pressure data and calculates two core indicators: spinal fit and back pressure peak value. The preset standards for backrest angle adjustment are: standard spinal fit and standard peak back pressure. The processing module compares real-time indicators with standard values ​​to determine the effectiveness of the backrest angle adjustment. When the spinal fit is greater than or equal to the standard spinal fit and the peak back pressure is less than or equal to the standard peak back pressure, the backrest angle adjustment is determined to have achieved the expected effect. The processing module sends a backrest angle lock command to the central control module, and then the seat cushion and backrest adjustment process begins. When either the spinal fit is less than the standard spinal fit or the peak back pressure is less than the standard peak back pressure, the processing module corrects the target angle based on the current data, sends a command to the central control module to readjust the backrest angle, and restarts the backrest angle adjustment process until the backrest angle adjustment achieves the expected effect.

7. The student seat according to claim 6, characterized in that, When the central control module synchronously controls the seat cushion adjustment assembly and the back cushion adjustment assembly to adjust, it includes: After the seat height and backrest angle meet the standards, the first sensing area collects pressure distribution data of different areas of the buttocks. The processing module combines the data to determine the target adjustment parameters of the seat cushion: one is the height of the front protrusion of the seat cushion, and the other is the softness and hardness of the back of the seat cushion. The second sensing area collects the fit data of different areas of the back. The processing module combines the data to determine the target adjustment parameters of the backrest: one is the position of the lumbar support point of the backrest, and the other is the shoulder support strength of the backrest. The current seat cushion parameters are obtained through the sensors of the seat cushion adjustment component, and the current back cushion parameters are obtained through the sensors of the back cushion adjustment component. The first and second difference ranges of seat cushion parameters are preset, and the upper limit of the first difference range of seat cushion parameters is less than the lower limit of the second difference range of seat cushion parameters; the first and second difference ranges of back cushion parameters are preset, and the upper limit of the first difference range of back cushion parameters is less than the lower limit of the second difference range of back cushion parameters. Calculate the differences between the current and target values ​​of each parameter: the difference in the height of the front protrusion of the seat cushion, the difference in the firmness of the back of the seat cushion, the difference in the position of the lumbar support point of the back cushion, and the difference in the shoulder support strength of the back cushion; the processing module determines the adjustment strategy based on the differences: When all parameter differences are zero, the processing module sends a seat cushion and back cushion maintenance command to the central control module. When the difference between each parameter is within the corresponding first difference range, the processing module sends an instruction to the central control module to adjust the value to the first range value. When the difference between each parameter is within the corresponding second difference interval, the processing module sends an instruction to the central control module to adjust the amount to the value of the second interval, where the value of the second interval is greater than the value of the first interval. Among them, the adjustment of the seat cushion parameters should be limited to the range of the height of the front protrusion of the seat cushion and the range of the softness and hardness of the back of the seat cushion to suit students of different body types; the adjustment of the back cushion parameters should be limited to the range of the position of the lumbar support point of the back cushion and the range of the shoulder support strength of the back cushion to suit students of different body types.

8. The student seat according to claim 7, characterized in that, After the seat cushion adjustment assembly and back cushion adjustment assembly have been adjusted, the following are also included: The first and second sensing areas simultaneously collect adjusted pressure and fit data on the buttocks and back. The image acquisition module acquires dynamic images of the subject's full-body sitting posture. The processing module performs comprehensive analysis on the collected data and calculates two key performance indicators: the uniformity of the seat cushion pressure and the fit area of ​​the back cushion. The preset standards for seat and backrest adjustments are: standard seat cushion pressure uniformity and standard backrest contact area. The processing module compares real-time indicators with standard values ​​to determine the overall adjustment effect. When the uniformity of seat cushion pressure is greater than or equal to the uniformity of standard seat cushion pressure and the contact area of ​​back cushion is greater than or equal to the contact area of ​​standard back cushion, it is determined that the full-process adjustment of seat height, backrest angle, seat cushion and back cushion has achieved the expected effect. The processing module sends a system end adjustment command to the central control module, and the seat enters a stable support state. When either the seat cushion pressure uniformity is less than the standard seat cushion pressure uniformity or the backrest contact area is less than the standard backrest contact area, the processing module sends a recalibration command to the central control module and restarts the entire adjustment process in the order of seat height adjustment, backrest angle adjustment, and seat cushion and backrest adjustment. If the standard is not met after three consecutive restarts, the processing module generates a device calibration fault signal and sends it to the central control module to remind staff to conduct a manual inspection.

9. The student seat according to claim 8, characterized in that, A headrest is provided at the top of the chair back, and a pressure sensor is provided inside the headrest. The pressure sensor is used to collect the contact pressure data between the head and the headrest in real time, and preset the effective leaning pressure threshold and the pressure continuous trigger duration. A leg rest is provided at the bottom of the base away from the chair back, and the leg rest can extend from the bottom of the base. The pressure sensor is electrically connected to the processing module to transmit real-time pressure data, and the leg rest is electrically connected to the central control module. The pressure sensor and leg rest form a linkage adjustment mechanism through the processing module and the central control module. The processing module receives the pressure sensor data and makes a status judgment, and the central control module controls the leg rest movement and the chair back adjustment according to the instructions of the processing module.

10. The student seat according to claim 9, characterized in that, After receiving the real-time pressure data transmitted by the pressure sensor, the processing module simultaneously performs two judgments: Pressure validity determination: If the real-time pressure value is greater than or equal to the valid contact pressure threshold, it is determined to be a valid contact state and the timer is started; if the real-time pressure value is less than the valid contact pressure threshold, it is determined to be an invalid contact and the timer is reset. Duration judgment: When the duration of the effective leaning state is greater than or equal to the duration of the continuous pressure trigger, the processing module determines that the user has entered a short rest mode and triggers the headrest, leg rest and backrest linkage adjustment command; if the duration of the effective leaning state is less than the duration of the continuous pressure trigger, the current sitting posture is maintained.

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