Multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment

Abstract

The invention discloses a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment, and relates to the field of air cushions, the multi-chamber anti-bedsore air cushion structure comprises an air cushion structure, a breathable cushion and a control system, a flexible inflation mechanism is mounted in the air cushion structure, and the control system comprises a multi-parameter sensing unit, an intelligent control unit and an execution driving unit. According to the invention, a plurality of groups of flexible inflation mechanisms distributed along human body regions in the air cushion structure and a dynamic adaptation module trigger body type self-calibration and distribute pressure thresholds and inflation and deflation amplitudes of the flexible inflation mechanisms in each region, and the dynamic adaptation module identifies user postures and generates a directional pressure regulation instruction; the dynamic optimization module adjusts an abnormal judgment threshold value based on historical early warning data and a user body position change rule, the multi-mode adjustment module supports switching of scene modes, adapts to different use requirements, realizes personalized pressure adaptation, and reduces the risk of long-term compression of an osseous process part through multi-parameter fusion perception and dynamic adjustment.

Description

Technical Field

[0001] This invention relates to the field of air cushion technology, specifically to a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment. Background Technology

[0002] Anti-bedsore air mattresses are medical / home care devices designed for people who are bedridden for long periods or have limited mobility. Their core purpose is to prevent bedsores by adjusting the contact pressure between the body and the support surface, thus avoiding long-term ischemia and hypoxia in local tissues and improving bed comfort.

[0003] In existing technologies, traditional air mattresses adjust the inflation and deflation of the air inside the mattress simultaneously during use, without being designed to differentiate the pressure requirements of different parts of the body. Changes in the user's body shape and posture will affect the pressure on different parts of the air mattress. Due to the lack of personalized adaptation logic, the air mattress cannot respond to these dynamic changes in real time, causing bony prominences to be under continuous pressure for a long time. Local tissues gradually become damaged due to ischemia and hypoxia, eventually leading to the risk of pressure ulcers, making it difficult to meet the pressure ulcer prevention and care requirements of different users. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment, in order to solve the problem mentioned in the background art that it does not have a differentiated design for the pressure requirements of different parts of the human body. Furthermore, changes in the user's body shape and posture will affect the pressure on different parts of the air cushion, making it difficult to meet the anti-bedsore care requirements of different users.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment, comprising an air cushion structure, a breathable cushion, and a control system. The air cushion structure is internally equipped with a flexible inflation mechanism, which is provided in multiple sets. The multiple sets of flexible inflation mechanisms are sequentially distributed along the length of the human body in the headrest area, shoulder and back area, waist and hip area, thigh area, and heel area. The control system includes a multi-parameter sensing unit, an intelligent control unit, and an execution drive unit. The multi-parameter sensing unit collects data on human body pressure distribution, skin contact microenvironment, and user posture through pressure sensors, temperature and humidity sensors, and posture sensors. The data is preprocessed. The intelligent control unit receives the preprocessed data from the multi-parameter sensing unit, analyzes and calculates it, and generates personalized inflation and deflation control commands. The execution drive unit receives the control commands from the intelligent control unit and drives multiple sets of flexible inflation mechanisms to complete the inflation and deflation actions. The intelligent control unit includes an adaptive threshold setting module, a multi-mode adjustment module, and a safety protection module; The adaptive threshold setting module dynamically adjusts the judgment threshold through the synergistic effect of multi-dimensional data to achieve personalized adaptation; the multi-mode adjustment module pre-stores the core voltage regulation parameters of three scenario modes based on the needs of different usage scenarios and switches between scenarios; the safety assurance module identifies faults by monitoring the operating data of core components, classifies faults based on the fault self-diagnosis results, and triggers corresponding response strategies.

[0006] Preferably, the adaptive thresholding module includes a dynamic adaptation module and a dynamic optimization module; The dynamic adaptation module sets judgment thresholds through the combination of body shape self-calibration, dynamic posture recognition, and microclimate adjustment; The dynamic optimization module dynamically adjusts the judgment threshold based on historical data to adapt to the usage habits of different users.

[0007] Preferably, in the dynamic adaptation module, body shape self-calibration is triggered upon first use of the air cushion, user change, air cushion restart, or inactivity for more than 24 hours. This involves inflating multiple flexible inflatable mechanisms to a reference pressure, collecting pressure distribution data based on pressure sensors embedded within each mechanism, focusing on pressure feedback from the core pressure area, calculating the user's weight range and body type, and assigning pressure thresholds and inflation / deflation ranges to each flexible inflatable mechanism. Posture dynamic recognition uses posture sensors located at the bottom of the air cushion structure to collect tilt angle and displacement data, combined with the pressure distribution characteristics of the flexible inflatable mechanisms, to determine the user's supine, left lateral, right lateral, and semi-recumbent lying postures. Microclimate regulation adjusts the inflation / deflation cycle and range by monitoring the temperature and humidity at the skin-air cushion interface.

[0008] Preferably, in the multi-mode adjustment module, the three scene modes include bed rest, rehabilitation care, and nighttime sleep.

[0009] Preferably, in the multi-mode adjustment module, in bed rest mode, a zoned synchronous alternation logic is adopted, with the headrest area, shoulder and back area, waist and hip area, thigh area and heel area being synchronously inflated and deflated according to preset groups. In rehabilitation nursing mode, a bony prominence area priority decompression logic is adopted, prioritizing the deflation of bony prominence areas in the waist, hip and heel areas, and then adjusting the pressure of non-bony prominence area chambers. In nighttime sleep mode, when the user is detected to have entered deep sleep, that is, after the body position has been stable for more than 2 hours, the inflation and deflation cycle is extended to the preset maximum value.

[0010] Preferably, in the safety assurance module, when identifying a fault, quantitative indicators of pressure change rate and body position stability are defined, and a real abnormality warning is triggered by cross-judgment of pressure change characteristics and body position status.

[0011] Preferably, in the security module, the fault classification includes Level 1 warning, Level 2 warning and Level 3 warning, with Level 1 warning for minor faults, Level 2 warning for moderate faults and Level 3 warning for severe faults.

[0012] Preferably, one side of the air cushion structure is fixedly connected to one side of the breathable cushion. The air cushion structure includes an air cushion body and an antibacterial layer. The antibacterial layer is fixedly connected to the outside of the air cushion body. The flexible inflation mechanism includes a multi-channel pipe. One end of the multi-channel pipe passes through the side of the air cushion structure and is fixedly connected to a solenoid valve. The other ends of the multi-channel pipe are fixedly connected to an air supply pipe. One side of the air supply pipe is fixedly connected to an inflation pipe. Multiple inflation pipes are provided and are equidistantly distributed on one side of the air supply pipe. The other end of the inflation pipe is fixedly connected to a flexible chamber. One side of the flexible chamber is fixedly connected to a second guide block. A fixing plate is fixedly connected to the outside of the inflation pipe. One side of the fixing plate is fixedly connected to a first guide block.

[0013] Preferably, a compression spring is sleeved on the outside of both the first guide block and the second guide block, and the compression spring is fixedly connected between the end of the second guide block and the fixing plate.

[0014] Preferably, the inflation tube is fixedly connected to a support strip, the end of which is fixedly connected to the inside of the air cushion body, and one side of the support strip is fixedly connected to the other side of the fixing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, multiple sets of flexible inflatable mechanisms distributed along the human body zones within the air cushion structure are used. The dynamic adaptation module triggers body shape self-calibration in scenarios such as first-time use and user replacement. It controls the inflatable mechanisms to be inflated to a reference pressure, fits the user's weight range and body type, and allocates the pressure threshold and inflation / deflation range of the flexible inflatable mechanisms in each area. The dynamic adaptation module identifies the user's posture, generates directional pressure adjustment commands, reduces the pressure on the pressure side, and increases the pressure on the support side. At the same time, it monitors the temperature and humidity of the contact interface and adjusts the inflation / deflation cycle and range. The dynamic optimization module adjusts the abnormal judgment threshold based on historical warning data and the user's body position change patterns. The multi-mode adjustment module supports the switching of scene modes to adapt to different usage needs and achieve personalized pressure adaptation. Through multi-parameter fusion perception and dynamic adjustment, the risk of long-term pressure on bony prominences is reduced.

[0016] 2. In this invention, the solenoid valve receives the instruction from the execution drive unit and controls the airflow to enter the flexible chamber sequentially through the multi-channel pipe, the air supply pipe, and the inflation pipe, causing the flexible chamber to inflate. At the same time, the second guide block cooperates with the first guide block to compress the compression spring between them, buffering the local pressure generated by the human body. The high-density flexible chambers in the waist, hip, and heel areas can perform more precise pressure adjustment on bony prominences, improving the accuracy of decompression. Attached Figure Description

[0017] Figure 1 This is a system block diagram of the control system in a multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to the present invention; Figure 2 This is a three-dimensional structural diagram of a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment according to the present invention; Figure 3 This is a schematic internal cross-sectional view of a multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to the present invention; Figure 4 This is a schematic diagram of the connection structure of a flexible inflation mechanism for a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment according to the present invention. Figure 5 This is a schematic diagram of the flexible chamber connection structure of a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment according to the present invention; Figure 6 This is a schematic diagram of the flexible chamber structure of a multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment according to the present invention.

[0018] In the diagram: 1. Air cushion structure; 11. Air cushion body; 12. Antibacterial layer; 2. Flexible inflation mechanism; 21. Solenoid valve; 22. Flexible chamber; 23. Multi-channel pipe; 24. Fixing plate; 25. Support bar; 26. Compression spring; 27. First guide block; 28. Second guide block; 29. ​​Inflation tube; 210. Air delivery tube; 3. Breathable cushion; 4. Multi-parameter sensing unit; 5. Intelligent control unit; 51. Adaptive thresholding module; 511. Dynamic adaptation module; 512. Dynamic optimization module; 52. Multi-mode adjustment module; 53. Safety protection module; 6. Execution drive unit. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Refer to Figure 1As shown: A multi-chamber anti-bedsore air cushion structure based on intelligent inflation adjustment, which achieves personalized anti-bedsore protection through multi-chamber zoned intelligent inflation and deflation control, combined with dynamic analysis of multi-dimensional sensing data. It includes an air cushion structure 1, a breathable pad 3, and a control system. The air cushion structure 1 is equipped with a flexible inflation mechanism 2. The flexible inflation mechanism 2 is provided in multiple groups. The multiple groups of flexible inflation mechanisms 2 are distributed along the length of the human body in the head pillow area, shoulder and back area, waist and hip area, thigh area, and heel area. The control system includes a multi-parameter sensing unit 4, an intelligent control unit 5, and an execution drive unit 6. The multi-parameter sensing unit 4 includes a pressure sensor embedded inside each flexible inflation mechanism 2, a temperature and humidity sensor attached to the upper surface of the air cushion structure 1, and an attitude sensor set at the bottom of the air cushion structure 1. The pressure sensor, temperature and humidity sensor, and attitude sensor collect data on human body pressure distribution, skin contact microenvironment, and user posture. The data is preprocessed. The intelligent control unit 5 receives the preprocessed data from the multi-parameter sensing unit 4, analyzes and calculates it, and generates personalized inflation and deflation control commands.

[0021] The intelligent control unit 5 includes an adaptive threshold setting module 51, a multi-mode adjustment module 52, and a safety protection module 53; The adaptive thresholding module 51 dynamically adjusts the judgment threshold through the synergistic effect of multi-dimensional data to achieve personalized adaptation. By dynamically adjusting the pressure judgment threshold, it avoids the problem of poor adaptability caused by a uniform threshold. The adaptive thresholding module 51 includes a dynamic adaptation module 511 and a dynamic optimization module 512; The dynamic adaptation module 511 sets a judgment threshold through the combination of body shape self-calibration, dynamic posture recognition, and microclimate adjustment.

[0022] Body shape self-calibration is triggered upon first use of the air cushion, user change, air cushion restart, or inactivity exceeding 24 hours. It ensures stable internal pressure by inflating multiple sets of flexible inflatable mechanisms 2 to a reference pressure. Pressure sensors embedded within each flexible inflatable mechanism 2 collect pressure distribution data, focusing on pressure feedback from core pressure areas, including the shoulder and back area, waist and hip area, and heel area. Based on the pressure distribution data, the user's weight range and body type are calculated. A linear relationship between total inflation volume and pressure value is used to fit the user's weight, classifying them into three categories: underweight, standard, and overweight. By comparing the pressure difference between bony prominence areas (waist, hips, and heels) and non-bony prominence areas (shoulder, back, and thighs), the user's body shape characteristics are identified. Based on the calculation results, pressure thresholds and inflation / deflation ranges are assigned to each set of flexible inflatable mechanisms 2.

[0023] The posture dynamic recognition system collects the tilt angle and displacement change data of the air cushion structure 1 by setting the posture sensor at the bottom of the air cushion structure 1. Combined with the pressure distribution change characteristics of the flexible inflation mechanism 2, it determines the user's supine, left lateral, right lateral, and semi-recumbent bed posture. When a posture change is detected, the control system generates a directional pressure adjustment command to reduce the pressure at the pressure point and increase the pressure at the support point, so as to avoid long-term pressure on bony prominences after the change of body position.

[0024] When determining the posture, if the horizontal tilt angle of the air cushion structure 1 is less than 5° and the pressure is evenly distributed in the waist and hip area, the posture is supine. If the air cushion structure 1 tilts to the left at an angle of 15°-30°, the pressure in the left shoulder and back area and the left waist and hip area increases, and the posture is left lateral decubitus. If the air cushion structure 1 tilts to the right at an angle of 15°-30°, the pressure in the right shoulder and back area and the right waist and hip area increases, and the posture is right lateral decubitus. If the head end of the air cushion structure 1 tilts upward at an angle of 10°-20°, the pressure in the shoulder and back area increases, and the pressure in the waist and hip area decreases, and the posture is semi-recumbent.

[0025] Microclimate regulation involves monitoring the temperature and humidity at the skin-cushion structure 1 contact interface, adjusting the inflation and deflation cycle and amplitude, promoting air circulation at the contact interface, optimizing the microclimate, and reducing the risk of skin infection.

[0026] The dynamic optimization module 512 dynamically adjusts the judgment threshold based on historical data, records the reason for each warning trigger, whether it is interference or a real abnormality, and the user's body position change pattern, such as the frequency and duration of turning over. For users who turn over frequently, the abnormal duration threshold is automatically extended, and for critically ill users with stable body positions, the threshold is automatically shortened, adapting to the usage habits of different users and reducing the false trigger rate.

[0027] The multi-mode adjustment module 52, based on the needs of different usage scenarios, pre-stores core pressure regulation parameters for three scenario modes and has a pre-set standardized pressure regulation parameter library. The parameters are dynamically corrected based on body shape self-calibration results for scenario switching. Three scenario modes are preset: bed rest, rehabilitation care, and nighttime sleep. In bed rest mode, a zoned synchronous alternating logic is adopted, with the headrest area, shoulder and back area, waist and hip area, thigh area, and heel area inflating and deflating synchronously according to preset groups. This avoids localized body sinking caused by isolated pressure regulation in certain areas. If the user turns over during mode operation, the pressure regulation process is automatically paused. After the body position is stabilized for 30 seconds, the original cycle is resumed to prevent body swaying. In rehabilitation nursing mode, the bony prominence area priority decompression logic is adopted, prioritizing the decompression of bony prominence areas in the waist, hip and heel areas, and then adjusting the pressure of non-bony prominence area chambers. If the pressure sensor detects that the pressure in the bony prominence area exceeds the safety threshold, emergency decompression is triggered immediately without waiting for the cycle to end. In night sleep mode, if the user is detected to have entered deep sleep, that is, after the body position has been stable for more than 2 hours, the inflation and deflation cycle is automatically extended to the preset maximum value. If the user is detected to turn over or wake up, the cycle is immediately reduced to the initial value.

[0028] The safety protection module 53 monitors the operating data of core components, including sensors and air pumps, identifies faults, classifies faults based on the fault self-diagnosis results, and triggers corresponding response strategies.

[0029] When identifying faults, first clarify the quantitative indicators of pressure change rate and body position stability. Pressure change rate reflects how fast the chamber pressure changes, distinguishing between sudden interference and continuous abnormality. Body position stability reflects whether the user's body position is in dynamic change, distinguishing between user movement interference and static abnormality. By cross-judging the pressure change characteristics and body position status, interference signals are filtered out and real abnormality warnings are triggered.

[0030] The fault classification includes Level 1, Level 2, and Level 3 warnings. Level 1 warnings are for minor faults, including single sensor drift, slight air leakage in a single chamber, and low battery power. Level 2 warnings are for moderate faults, including single-zone main valve assembly failure, air pump auxiliary pump failure, and slight air leakage in multiple chambers. Level 3 warnings are for severe faults, including air pump main pump failure, main control module failure, multi-zone valve assembly blockage, and power outage. The execution drive unit 6 receives control commands from the intelligent control unit 5 and drives multiple sets of flexible inflation mechanisms 2 to complete the inflation and deflation actions.

[0031] The multi-parameter sensing unit 4 collects pressure, temperature, humidity, and posture data, preprocesses them, and transmits them to the intelligent control unit 5. The intelligent control unit 5 sets personalized thresholds through the adaptive threshold setting module 51, selects scene strategies in conjunction with the multi-mode adjustment module 52, and monitors the equipment status through the safety protection module 53. It generates inflation and deflation control commands, executes the drive unit 6 to drive the flexible inflation mechanism 2 to complete inflation and deflation, and continuously collects data to achieve dynamic cyclic adjustment, ultimately achieving the effect of preventing bedsores.

[0032] Parameters are dynamically adjusted based on body shape, posture, and usage habits to adapt to different user needs. Prioritized decompression of bony prominence areas and alternating inflation and deflation in different zones prevent prolonged localized pressure. Three preset modes cater to rest, rehabilitation, and sleep scenarios, enhancing user comfort. Fault classification monitoring and response reduce the risk of equipment failure. Example 2: Figure 2 - Figure 6As shown, one side of the air cushion structure 1 is fixedly connected to one side of the breathable cushion 3. The air cushion structure 1 includes an air cushion body 11 and an antibacterial layer 12. The antibacterial layer 12 is fixedly connected to the outside of the air cushion body 11. The flexible inflation mechanism 2 includes a multi-channel pipe 23. One end of the multi-channel pipe 23 passes through the side of the air cushion structure 1 and is fixedly connected to a solenoid valve 21. The other multiple ends of the multi-channel pipe 23 are fixedly connected to air supply pipes 210. One side of the air supply pipe 210 is fixedly connected to an inflation pipe 29. Multiple inflation pipes 29 are provided, and multiple inflation... The trachea 29 is equidistantly distributed on one side of the air supply tube 210. The other end of the air tube 29 is fixedly connected to a flexible chamber 22. A second guide block 28 is fixedly connected to one side of the flexible chamber 22. A fixing plate 24 is fixedly connected to the outside of the air tube 29. A first guide block 27 is fixedly connected to one side of the fixing plate 24. According to the biomechanical characteristics of the human body, the chambers in the bony prominence area are designed to be smaller and more numerous, while the chambers in the non-bony prominence area are larger. The number density of chambers in the waist and hip area and the heel area is twice that of the shoulder and back area. A compression spring 26 is sleeved on the outside of the first guide block 27 and the second guide block 28. The compression spring 26 is fixedly connected between the end of the second guide block 28 and the fixing plate 24. The air tube 29 is fixedly connected to a support bar 25. The end of the support bar 25 is fixedly connected to the inside of the air cushion body 11. One side of the support bar 25 is fixedly connected to the other side of the fixing plate 24.

[0033] The solenoid valve 21 receives instructions from the drive unit 6 and controls the airflow through an external air pump, sequentially passing through the multi-port pipe 23, the air supply pipe 210, and the inflation pipe 29, into the flexible chamber 22. After the flexible chamber 22 inflates, it works in conjunction with the elastic cushioning of the compression spring 26 to form a flexible support surface that conforms to the human body. When the human body presses on the flexible chamber 22, the flexible chamber 22 drives the second guide block 28 to deform the compression spring 26. The elastic force of the compression spring 26 buffers the local pressure. At the same time, the intelligent control unit 5 adjusts the flexible chamber 22 according to the pressure sensor data. The inflation pressure of the chambers 22 is higher. The flexible chambers 22 in the waist, hip and heel areas are more densely packed, allowing for more precise adjustment of the pressure distribution in bony prominence areas during inflation or deflation. The flexible chambers 22 in non-bony prominence areas are larger in volume, ensuring support stability. The antibacterial layer 12 continuously inhibits bacterial growth on the surface of the air cushion body 11. The breathable pad 3 enhances air circulation between the air cushion structure 1 and the bed sheet, optimizing the skin contact environment. The support strip 25 works in conjunction with the fixing plate 24 to strengthen the connection between the flexible inflation mechanism 2 and the air cushion body 11, preventing chamber displacement caused by long-term inflation and deflation.

[0034] The device's usage and working principle are as follows: When the device is used for the first time, when the user changes, or when it has not been used for more than 24 hours, the dynamic adaptation module 511 triggers the body shape self-calibration process. The execution drive unit 6 sends a command to the solenoid valve 21 of the flexible inflation mechanism 2. The airflow is injected into the flexible chambers 22 of each zone through the multi-channel pipe 23, the air supply pipe 210, and the inflation pipe 29 and inflated to the reference pressure. The pressure sensor embedded in the flexible chamber 22 of the multi-parameter sensing unit 4 collects the pressure distribution data of the core areas such as the shoulder and back area, waist and hip area, and heel area. It fits the user's weight range, identifies body shape characteristics, and assigns the corresponding pressure threshold and inflation / deflation range to the flexible chambers 22 of each area.

[0035] After entering the normal use phase, the multi-parameter sensing unit 4 continuously collects pressure data of the flexible chamber 22, temperature and humidity data of the upper surface of the air cushion structure 1, and posture data of the bottom of the air cushion structure 1. After noise reduction and synchronous preprocessing, the data is transmitted to the intelligent control unit 5. The dynamic adaptation module 511 determines the user's posture based on the posture data, generates a directional pressure adjustment command, and executes the drive unit 6 to control the corresponding area solenoid valve 21. The dynamic adaptation module 511 adjusts the inflation and deflation cycle of the flexible chamber 22 in the corresponding area. The scene of the multi-mode adjustment module 52 can be switched through the panel or APP. At the same time, the dynamic optimization module 512 dynamically adjusts the abnormal duration threshold based on historical warning records and the user's turning frequency to adapt to different user habits and reduce the false trigger rate.

[0036] Throughout the process, the safety module 53 monitors the operating data of core components such as sensors, solenoid valves 21, and air pumps in real time. It filters interference signals through multi-dimensional verification and triggers abnormal alarms to ensure that the pressure of the flexible chamber 22 is maintained within a safe range. When the flexible chamber 22 is inflated, the second guide block 28 on its side will compress the compression spring 26 between the first guide block 27 and the fixed plate 24. The elastic force buffers the local pressure of the human body. The support bar 25 strengthens the connection between the fixed plate 24 and the air cushion body 11 to prevent the flexible chamber 22 from shifting.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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.

Claims

1. A multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment, characterized in that: It includes an air cushion structure (1), a breathable cushion (3) and a control system. The air cushion structure (1) is equipped with a flexible inflation mechanism (2). The control system includes a multi-parameter sensing unit (4), an intelligent control unit (5) and an execution drive unit (6). The multi-parameter sensing unit (4) collects data on human body pressure distribution, skin contact microenvironment and user posture through pressure sensor, temperature and humidity sensor and posture sensor, and preprocesses the data. The intelligent control unit (5) receives the preprocessed data from the multi-parameter sensing unit (4), analyzes and calculates it, and generates personalized inflation and deflation control commands. The execution drive unit (6) receives the control commands from the intelligent control unit (5) and drives multiple sets of flexible inflation mechanisms (2) to complete the inflation and deflation actions. The intelligent control unit (5) includes an adaptive threshold setting module (51), a multi-mode adjustment module (52), and a safety protection module (53). The adaptive threshold setting module (51) dynamically adjusts the judgment threshold through the synergistic effect of multi-dimensional data to achieve personalized adaptation; the multi-mode adjustment module (52) pre-stores the core voltage regulation parameters of three scenario modes based on the needs of different usage scenarios and performs scenario switching; the safety assurance module (53) identifies faults by monitoring the operating data of core components, classifies faults based on the fault self-diagnosis results, and triggers corresponding response strategies.

2. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: The adaptive thresholding module (51) includes a dynamic adaptation module (511) and a dynamic optimization module (512). The dynamic adaptation module (511) sets a judgment threshold through the combination of body shape self-calibration, dynamic posture recognition and microclimate adjustment; The dynamic optimization module (512) dynamically adjusts the judgment threshold based on historical data to adapt to the usage habits of different users.

3. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 2, characterized in that: In the dynamic adaptation module (511), body shape self-calibration is triggered when the air cushion is used for the first time, when the user is changed, when the air cushion is restarted, or when it has not been used for more than 24 hours. By filling the interior of multiple sets of flexible inflatable mechanisms (2) with reference pressure, pressure value distribution data is collected according to the pressure sensors embedded in each set of flexible inflatable mechanisms (2), and pressure feedback of the core pressure area is obtained. The user's weight range and body type are calculated, and the pressure threshold and inflation / deflation range of each set of flexible inflatable mechanisms (2) are assigned. The posture dynamic recognition uses a posture sensor set at the bottom of the air cushion structure (1) to collect the tilt angle and displacement change data of the air cushion structure (1), and combines the pressure distribution change characteristics of the flexible inflation mechanism (2) to determine the user's supine, left lateral, right lateral and semi-recumbent bed postures; the microclimate regulation adjusts the inflation and deflation cycle and amplitude by monitoring the temperature and humidity of the interface between the skin and the air cushion structure (1).

4. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: In the multi-mode adjustment module (52), the three scene modes include bed rest, rehabilitation care and nighttime sleep.

5. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: In the multi-mode adjustment module (52), in the bed rest mode, the partition synchronous alternation logic is adopted, and the head pillow area, shoulder and back area, waist and hip area, thigh area and heel area are synchronously inflated and deflated according to the preset group. In the rehabilitation nursing mode, the bony prominence area priority decompression logic is adopted, and the bony prominence areas of the waist and hip area and heel area are deflated first, and then the non-bony prominence area chambers are pressure regulated. In the night sleep mode, when it is detected that the user has entered deep sleep, that is, after the body position has been stable for more than 2 hours, the inflation and deflation cycle is extended to the preset maximum value.

6. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: In the safety protection module (53), when identifying a fault, the quantitative indicators of pressure change rate and body position stability are clearly defined, and a real abnormality warning is triggered by cross-judgment of pressure change characteristics and body position status.

7. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: In the security module (53), the fault classification includes Level 1 warning, Level 2 warning and Level 3 warning. Level 1 warning is a minor fault, Level 2 warning is a moderate fault and Level 3 warning is a severe fault.

8. The multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 1, characterized in that: One side of the air cushion structure (1) is fixedly connected to one side of the breathable cushion (3). The air cushion structure (1) includes an air cushion body (11) and an antibacterial layer (12). The antibacterial layer (12) is fixedly connected to the outside of the air cushion body (11). The flexible inflation mechanism (2) includes a multi-channel pipe (23). One end of the multi-channel pipe (23) passes through the side of the air cushion structure (1) and is fixedly connected to a solenoid valve (21). The other ends of the multi-channel pipe (23) are all fixedly connected to an air supply pipe (210). An inflation tube (29) is fixedly connected to one side of the air supply tube (210). Multiple inflation tubes (29) are provided, and multiple inflation tubes (29) are equidistantly distributed on one side of the air supply tube (210). The other end of the inflation tube (29) is fixedly connected to a flexible chamber (22). A second guide block (28) is fixedly connected to one side of the flexible chamber (22). A fixing plate (24) is fixedly connected to the outside of the inflation tube (29). A first guide block (27) is fixedly connected to one side of the fixing plate (24).

9. A multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 8, characterized in that: A compression spring (26) is sleeved on the outside of the first guide block (27) and the second guide block (28). The compression spring (26) is fixedly connected between the end of the second guide block (28) and the fixing plate (24).

10. A multi-chamber anti-decubitus air cushion structure based on intelligent inflation adjustment according to claim 8, characterized in that: The inflation tube (29) is fixedly connected to a support strip (25), the end of which is fixedly connected to the inside of the air cushion body (11), and one side of the support strip (25) is fixedly connected to the other side of the fixing plate (24).

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