Intelligent pillow, control method thereof and storage medium

Abstract

The application discloses an intelligent pillow, a control method thereof and a storage medium, wherein the intelligent pillow comprises a pillow main body and a control system, and the pillow main body is internally provided with a neck air bag, a head air bag and a pressure sensor for detecting the pressure of a shoulder, which are arranged in parallel along the length direction of the pillow main body. The control system is configured to: firstly perform a calibration operation, acquire and store the individual air bag height and the corresponding reference pressure value set by a user for the supine and lateral positions respectively; and then in sleep, automatically determine the sleeping position based on the comparison between the real-time detection value of the pressure sensor and the reference value, and control the air bag to inflate and deflate when the sleeping position changes, so as to adjust the height of the pillow to the individual preset height corresponding to the sleeping position. The application aims to realize the automatic and accurate comfortable support of the intelligent pillow.

Description

Technical Field

[0001] This invention relates to the field of smart home and healthy sleep technology, and in particular to a smart pillow and its control method and storage medium. Background Technology

[0002] To improve sleep quality, smart pillow technology aims to solve the problem of traditional pillows having a fixed height and being unable to adapt to different sleeping positions. Several smart pillow solutions have already emerged that can detect sleeping posture and automatically adjust their height.

[0003] For example, prior art CN111436808A discloses a smart pillow and its control method and device, control equipment, and storage medium. This solution incorporates a first airbag for supporting the neck and shoulders and a second airbag for supporting the head. It determines sleeping posture by placing at least two pressure sensors along the width of the pillow on the surface or inside the first airbag near the shoulders: when all sensors experience "balanced" pressure, it is determined to be supine; when the pressure is "uneven," it is determined to be side-lying. After determining the sleeping posture, the control system inflates or deflates the second airbag supporting the head according to a preset "target air pressure range" corresponding to that posture, thereby adjusting the pillow height. However, this prior art has the following significant drawbacks: First, its height adjustment is based on a preset, fixed "target air pressure range," meaning that all users adjust to the same air pressure value (height) when supine and to a different air pressure value when side-lying. This completely ignores the significant differences in height, body shape, head and neck curves, and personal comfort preferences among different users, failing to achieve true personalized adaptation and limiting comfort. Secondly, its sleeping posture judgment logic is relatively simple, relying solely on whether multiple sensors are "simultaneously" under pressure or whether the pressure is "equal". This may lead to misjudgment when the user is small, has an incorrect sleeping posture, or the pillow is deformed.

[0004] Furthermore, existing technology CN116268902A discloses a user sleeping posture detection method, a smart pillow, a device, and a storage medium. This solution also employs a dual-airbag structure with head and neck airbags, but its sleeping posture judgment logic is more complex. This method requires pre-inflating the airbags based on user-inputted shoulder width, neck circumference, and other information. It then analyzes the pressure change curves, abrupt pressure change points, and curve slopes of the two airbags during pre-inflation, combining this with the user's body movement data after stabilization and the pressure ratio of the two airbags to comprehensively determine the sleeping posture. The shortcomings of this technology are: First, its height adjustment relies on a complex algorithm model. When a user uses it for the first time, due to a lack of personal historical data and the algorithm model not being trained, it is difficult to make accurate and effective adjustments, resulting in a poor initial user experience. Second, its method is cumbersome, requiring multiple pre-inflations, monitoring of pressure change curves, and multiple rounds of judgment, resulting in high response speed and control logic complexity. Finally, it also fails to provide a direct and convenient way for users to quickly set a personalized comfort height based on their subjective feelings; its personalization relies on long-term algorithm learning rather than active user calibration.

[0005] In summary, existing smart pillow technology still has shortcomings in terms of the convenience and accuracy of highly personalized adaptation, the reliability of sleeping posture recognition, and the initial user experience. Therefore, there is an urgent need for a smart pillow solution that allows users to quickly complete personalized settings, accurately identify sleeping postures and achieve seamless automatic switching, while avoiding the initial failure issues of complex algorithms. Summary of the Invention

[0006] The main objective of this invention is to provide a smart pillow, its control method, and storage medium to solve the technical problems in the prior art, such as the inability of smart pillow height adjustment to meet personalized needs, the potential inaccuracy in judging sleeping posture, and the poor initial experience caused by reliance on complex algorithms.

[0007] To achieve the above objectives, the present invention provides a smart pillow, the smart pillow comprising a pillow body and a control system connected to the pillow body:

[0008] The pillow body has a neck airbag, a head airbag, and a pressure sensor arranged parallel to each other along the length of the pillow body. The head airbag is located above the neck airbag in the vertical direction. The pressure sensor is located on the side of the neck airbag facing the user's shoulder and is used to detect the pressure value and pressure area value.

[0009] The control system is connected to the neck airbag and the head airbag and is used to control their inflation and deflation.

[0010] The control system is configured to execute:

[0011] The calibration operation specifically includes: acquiring and storing the personalized preset heights of the neck airbag and head airbag corresponding to the user's supine and lateral positions, respectively, as well as the baseline detection values ​​of the pressure sensors in the corresponding states;

[0012] After the calibration operation is completed, the adjustment operation is performed, which specifically includes: determining the user's current sleeping position based on the comparison between the real-time detection value of the pressure sensor and the reference detection value, and adjusting the air pressure of the neck airbag and head airbag to a personalized preset height corresponding to the current sleeping position when the sleeping position is determined to have changed.

[0013] Optionally, the neck airbag and the head airbag are connected to the control system via corresponding first pressure sensor and second pressure sensor.

[0014] Optionally, the pressure sensor is a strip-shaped flexible pressure sensor.

[0015] Optionally, the smart pillow may also include a thin padding cover that can be detachably wrapped around the neck airbag, head airbag, and pressure sensor.

[0016] Optionally, the control system includes a control subunit, an air pump, a multi-way solenoid valve, and a power supply module.

[0017] Furthermore, to achieve the above objectives, the present invention also provides a control method for a smart pillow, applied to any of the smart pillows described above, the method comprising:

[0018] Perform calibration steps to acquire and store the personalized preset heights of the neck airbag and head airbag corresponding to the user's supine and lateral positions, respectively, as well as the baseline detection values ​​of the pressure sensor in the corresponding states;

[0019] The adjustment steps include: determining the user's current sleeping position based on a comparison between the real-time detection value of the pressure sensor and the reference detection value; and adjusting the air pressure of the neck airbag and head airbag to the personalized preset height corresponding to the current sleeping position in response to the determination of a change in sleeping position.

[0020] Optionally, the calibration procedure includes a user-manual calibration step, specifically including:

[0021] First calibration step: Guide the user to lie in a supine position and record the first supine air pressure value of the head airbag, the second supine air pressure value of the neck airbag, and the first reference pressure value and the first reference area value of the pressure sensor when the user confirms that it is comfortable.

[0022] Second calibration step: Guide the user to lie on their side and record the first lateral pressure value of the head airbag, the second lateral pressure value of the neck airbag, and the second reference pressure value and the second reference area value of the pressure sensor when the user confirms that they are comfortable.

[0023] Optionally, the step of determining the user's current sleeping position includes:

[0024] Obtain the real-time pressure value and real-time pressure area value of the pressure sensor;

[0025] If the real-time pressure value is greater than the first reference pressure value and less than or equal to the second reference pressure value, and / or the real-time pressure area value is greater than or equal to the second reference area value and less than half of the first reference area value, then the current sleeping position is determined to be side-lying.

[0026] Otherwise, the current sleeping position is determined to be supine.

[0027] Optionally, in the user manual calibration step, the user receives a manual adjustment command for the airbag height through the user interface, and records the corresponding air pressure value and sensor reference value after user confirmation. The manual adjustment command is synchronized with the real-time changes in the height of the neck airbag and head airbag.

[0028] In addition, to achieve the above objectives, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the control method for the smart pillow as described in any of the above-described embodiments.

[0029] Beneficial effects:

[0030] (1) Achieve high personalization and avoid algorithm dependence: Through intuitive manual calibration, users can set the comfortable height for two sleeping positions and store it as a personalized preset value. When adjusting automatically, the preset value is directly called, without relying on machine learning algorithms for long-term learning. This fundamentally solves the problem of adjustment failure caused by insufficient data in the early stage of user use of complex algorithms, and achieves the excellent experience of "perfect adaptation out of the box".

[0031] (2) Accurate and reliable sleep posture judgment: A strip pressure sensor is arranged along the length of the pillow on the side of the neck airbag facing the shoulder. The pressure value and pressure area value are detected together and compared with the reference value recorded during calibration to determine the sleep posture. This method directly senses the shoulder pillow characteristics. Compared with the method that relies on the balance of multiple discrete sensors or the pressure ratio between airbags, it is more accurate and more resistant to interference.

[0032] (3) Reasonable structure and comfortable experience: It adopts a three-part combination structure of pillow body, independent control system and thin padding cover. The external control system reduces the impact of air pump noise on sleep; the thin padding cover is easy to remove and wash, and its internal partition can fix the components; the upper and lower layered design of head airbag and neck airbag is more ergonomic and can provide precise zoned support. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a smart pillow according to the present invention;

[0035] Figure 2 for Figure 1 System connection diagram of the smart pillow;

[0036] Figure 3 A flowchart illustrating the manual calibration mode;

[0037] Figure 4 A schematic diagram of the interactive interface for manual calibration mode;

[0038] Figure 5 This is a schematic diagram of the overall flow of the control method of the present invention;

[0039] Figure 6 This is a schematic diagram of the process for determining human sleeping posture based on a pressure sensor according to the present invention.

[0040] Explanation of icon numbers:

[0041] 1-Pillow body, 11-Neck airbag, 12-Head airbag, 13-Strip pressure sensor; 2-Control system, 201-Control subunit, 202-Air pump, 203-Multi-way solenoid valve, 204-Power module, 205-First air pressure sensor, 206-Second air pressure sensor; 3-Thin padding cover.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] This invention provides a smart pillow designed to address the problems of existing smart pillows, such as their inability to meet personalized height requirements, potentially inaccurate sleeping posture judgment, and poor initial user experience due to reliance on complex algorithms. This invention achieves personalized, comfortable sleep support out of the box by combining a one-time manual calibration to set a personalized baseline with automatic switching based on real-time pressure sensor judgment.

[0045] See Figure 1-6 The smart pillow provided in this embodiment mainly includes a pillow body 1, an independently set control system 2, and a thin padding cover 3. The pillow body 1 is the part that the user directly contacts, and it includes a neck airbag 11, a head airbag 12, and a pressure sensor 13. The neck airbag 11 and the head airbag 12 are arranged horizontally in parallel, with the head airbag 12 positioned vertically above the neck airbag 12, providing independent zoned support for the user's neck and head, respectively.

[0046] The pressure sensor 13 is preferably a 70mm long flexible thin film pressure sensor, which is arranged on the side of the neck airbag 11 facing the user's shoulder and extends along the length of the pillow, for accurately sensing the pressure value (Y) and pressure area (M) generated by the user's shoulder and back on the pillow.

[0047] Furthermore, the control system 2 includes a control subunit 201, an air pump 202, a multi-way solenoid valve 203, a power module 204, a first air pressure sensor 205, and a second air pressure sensor 206. The control subunit 201 is electrically connected to the air pump 202 and the multi-way solenoid valve 203. The control subunit 201 can send switching commands to each solenoid valve within the multi-way valve 203 via cables to achieve air path switching. The control subunit 201 controls the start and stop of the air pump 202 via cables. The power module 204 supplies power to all electrical components within the smart pillow through internal wiring.

[0048] The control system 2 is an external module independent of the pillow body 1, connected to the air bladder and sensors inside the pillow body 1 via air tubes and cables. The external design of the control system 2 reduces the impact of operating noise on sleep and also facilitates maintenance.

[0049] Furthermore, such as Figure 1-2 As shown, the neck airbag 11 and the head airbag 12 are connected to the control system 2 through corresponding first air pressure sensor 205 and second air pressure sensor 206. The first air pressure sensor 205 and the second air pressure sensor 206 sample the air pressure directly from inside the neck airbag 11 and the head airbag 12 (or on a very close connecting airway) through thin air tubes, and feed back the detected real-time air pressure value (electrical signal) to the control subunit 201, which can be used as a feedback signal to monitor whether the airbag height (air pressure) has reached the preset value.

[0050] Furthermore, the air pump 202 is connected to the neck airbag 11 and the head airbag 12 via a multi-way valve 203. When an increase in altitude (inflation) is required, the control subunit 201 controls the air pump 202 to start and controls the multi-way valve 203 to connect the air pump's outlet to the air inlet of the target airbag (head or neck). When a decrease in altitude (deflation) is required, the control subunit 201 controls the multi-way valve 203 to connect the target airbag's outlet to the atmosphere (exhaust port), using the airbag's internal pressure to expel the gas.

[0051] Furthermore, the control subunit 201 is also electrically connected to the pressure sensor 13, which (used to detect shoulder pressure and area) transmits the generated electrical signal directly to the control subunit 201 via a cable as the sole input for determining sleeping posture.

[0052] Furthermore, the thin padding cover 3 detachably encloses all components (neck airbag 11, head airbag 12, and pressure sensor 13) inside the pillow body 1, and has internal dividers to fix the position of each component. Preferably, the thin padding cover 3 has an opening and zipper on one side for easy removal for cleaning and quick reinstallation.

[0053] Furthermore, the smart pillow's air circuit is connected as follows: the outlet of the air pump 202 is connected to the common air inlet of the multi-way solenoid valve 203. Multiple output / input ports of the multi-way solenoid valve 203 are connected to the head airbag 12 and the neck airbag 11 respectively via air tubes for inflation and deflation. The first air pressure sensor 205 and the second air pressure sensor 206 are connected to the interior of the head airbag 12 and the neck airbag 11 respectively via thin air tubes for monitoring their internal air pressure.

[0054] Electrical connections of the smart pillow: Pressure sensor 13 transmits the detected pressure / area electrical signal to control subunit 201. First and second air pressure sensors 205 and 206 feed back the detected air pressure electrical signals to control subunit 201. Based on the logical operation results, control subunit 201 sends start / stop commands to air pump 202 and switches commands to multi-way solenoid valve 203 to switch the air path.

[0055] Furthermore, the control logic executed by control system 2 includes two core modes: manual calibration mode and automatic adjustment mode. Its workflow is as follows: Figure 3-5 As shown.

[0056] Manual calibration mode: This mode is used when the user is using the device for the first time or when they wish to reset the comfort height.

[0057] Step S101: The user triggers the altitude calibration procedure by pressing and holding the "OK" button on the control device or by other means.

[0058] Step S102: The system guides the user to lie in a supine position, and adjusts the heights of the head airbag 12 and the neck airbag 11 respectively through manual control (such as short pressing the "+" / "-" key) until the user feels that the neck and head obtain the most comfortable support. After the user confirms, the system records the air pressure value T1 of the head airbag 12 and the air pressure value J1 of the neck airbag 11 at this time as the "supine personalized preset height". At the same time, the system reads and records the pressure value Y1 and pressure area value M1 detected by the strip-shaped pressure sensor 13 at this time as the reference values for the supine sleeping posture.

[0059] Step S103: The system then guides the user to turn over and lie in a lateral position, and similarly finds the comfortable height of the head and neck in the lateral position through manual adjustment. After the user confirms, the system records the air pressure value T2 of the head airbag 12 and the air pressure value J2 of the neck airbag 11 at this time as the "lateral personalized preset height". At the same time, the pressure value Y2 and area value M2 of the pressure sensor 13 at this time are recorded as the reference values for the lateral sleeping posture.

[0060] Finally, the user completes the complete personalized settings covering the two main sleeping postures of supine and lateral positions, which are adapted to their own body shape and preferences. This process does not rely on any historical data or complex algorithm models, ensuring the effectiveness of the first use.

[0061] Automatic adjustment mode: After the calibration is completed, the pillow enters the daily automatic working state, as Figure 6 shown in the figure.

[0062] Step S201: The system monitors the data of the strip-shaped pressure sensor 13 in real time to obtain the current pressure value Y and the current pressure area value M.

[0063] Step S202: The obtained current values (Y, M) are compared with the reference values (Y1, M1; Y2, M2) recorded in the calibration phase, and the current sleeping posture is judged through preset logical rules. Specifically, if the condition is satisfied: (Y≤Y2 and Y>Y1) or (M≥M2 and M<M1 / 2), it is determined that the user is currently in the lateral position (S203); otherwise, it is determined that the user is in the supine position (S204). This logic combines the two dimensions of pressure magnitude and force-bearing area, which improves the robustness of sleeping posture recognition.

[0064] Step S205: The system compares the currently determined sleeping posture with the last recorded sleeping posture. If the sleeping posture has not changed, the process returns to step S201 to continue monitoring.

[0065] Step S206: If a change in sleeping posture is detected (e.g., from supine to side-lying), the system immediately activates the air pump 202 and the multi-way solenoid valve 203 to inflate or deflate the neck airbag 11 and head airbag 12, quickly and smoothly adjusting their air pressure values ​​to the personalized preset height corresponding to the new sleeping posture. For example, when changing to side-lying, the pressure is adjusted to (T2, J2), and when changing to supine, the pressure is adjusted to (T1, J1).

[0066] Step S207: After the adjustment is completed, update the current sleeping posture recorded by the system and return to step S201 to form a continuous monitoring-judgment-adjustment closed loop.

[0067] Example 1

[0068] Taking a male user who is 170cm tall as an example. When using the smart pillow for the first time, the first step is to lie flat on your back with your head resting normally on the pillow. Press and hold the OK button on the control device for 5 seconds to enter the setup state.

[0069] The second step is to press the headrest button and then use the plus and minus buttons to adjust the height of the head airbag to a comfortable level. Similarly, press the neckrest button and use the plus and minus buttons to adjust the height of the neck airbag to a comfortable level. Press the OK button to complete the automatic pillow height setting for the supine sleeping position. The system will then collect the following data: head airbag 12 (T1) pressure value: 2.5 kPa; pressure (Y1) value: 8.9 kPa; and area (M1) value: 242 cm². 2 The neck airbag 11 (J1) has an air pressure of 6.5 kPa.

[0070] Third, after pressing the side-lying head button, use the plus and minus keys to adjust the height of the head airbag to a comfortable level; after pressing the side-lying neck button, use the plus and minus keys to adjust the height of the neck airbag to a comfortable level; press the OK button to complete the self-setting of the pillow height for the side-lying sleeping position. The system collects the head airbag 12 (T2) pressure value of 5.2 kPa, pressure (Y2) value of 19.8 kPa, and area (M2) value of 115 cm². 2 The neck airbag 11 (J2) has an air pressure of 7.4 kPa.

[0071] Sleep posture detection and automatic adjustment process:

[0072] When the user rolls from supine to side-lying position, pressure sensor 13 collects a pressure value of 17.5 kPa, which is less than or equal to the side-lying pressure value (Y2) of 19.8 kPa when the pillow height is set, and greater than the supine pressure value (Y1) of 8.9 kPa when the pillow height is set; simultaneously, the pressure area is 120 cm². 2 Side-lying area (m2) greater than or equal to the pillow height setting: 115cm² 2 When the pillow height is less than the recommended setting, the supine area (m1) is 242cm². 2At halfway point, the patient is determined to be in a side-lying sleeping position. The head airbag 12 is inflated to a pressure of 5.2 kPa, and the neck airbag 11 is also inflated to a pressure of 7.4 kPa.

[0073] When the user rolls from side-lying to supine, the pressure sensor collects a pressure value of 7.2 kPa, which is less than or equal to the supine pressure value (Y1) of 8.9 kPa when the pillow height is set correctly; simultaneously, the pressure area is 210 cm². 2 The supine area (m1) when the pillow height is less than the recommended setting is 242cm². 2 When the pillow height is greater than the side-lying area (m2) of the pillow, the area should be 115cm². 2 The patient was determined to be in a supine sleeping position. The head airbag 12 deflated, causing the air pressure to reach 2.5 kPa, and the neck airbag 11 also deflated, causing the air pressure to reach 6.5 kPa.

[0074] The product brands, models, and parameter information for air pressure sensors, pressure sensors, air pumps, and multi-way valves are shown in Table 1.

[0075]

[0076] The air pressure sensor features a vertical nozzle for easy installation and sealing. Its pressure range is designed to match the air pressure of the smart pillow's air bladder, with ample margin for error. It also covers ambient temperature conditions suitable for indoor sleep environments. Furthermore, it boasts high-precision detection, ensuring accurate and comfortable air pressure adjustment for the pillow.

[0077] The pressure sensor is sized to perfectly fit the curved surface of the smart bed's shoulders, eliminating any foreign body sensation after embedding. Its pressure range covers shoulder pressure monitoring for various groups of people. Within its measurement accuracy range, it can accurately capture minute fluctuations in shoulder pressure. Furthermore, it is waterproof and sweatproof, can withstand long-term pressure from the human body, and has a mechanical lifespan of over 100,000 cycles.

[0078] The air pump can be precisely controlled by the main control chip to output pressure between 2 and 8 kPa, covering the core working range of 0 to 10 kPa for smart pillow airbags. The silent control can adapt to the requirements of quiet operation of smart pillows at night, and the inflation response speed can meet the support adjustment needs when changing sleeping positions. It also has advantages such as wear resistance, no pollution, and long mechanical life.

[0079] The multi-way valve's flow control matches the airbag's inflation and deflation speed; and its standard pressure rating exceeds the requirements of smart pillows, providing significant safety redundancy for the system. Its service life far surpasses that of conventional pillows. Furthermore, its ultra-compact design makes it ideal for portable mobility and confined bedroom scenarios.

[0080] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A smart pillow, characterized in that, The smart pillow includes a pillow body (1) and a control system (2) connected to the pillow body (1): The pillow body (1) is provided with a neck airbag (11), a head airbag (12) and a pressure sensor (13) arranged parallel to each other along the length of the pillow body. The head airbag (12) is located above the neck airbag (11) in the vertical direction. The pressure sensor (13) is located on the side of the neck airbag (11) facing the user's shoulder and is used to detect the pressure value and pressure area value. The control system (2) is connected to the neck airbag (11) and the head airbag (12) and is used to control their inflation and deflation. The control system is configured to execute: The calibration operation involves acquiring and storing the personalized preset heights of the neck airbag (11) and head airbag (12) corresponding to the user's supine and lateral positions, respectively, as well as the baseline detection values ​​of the pressure sensor (13) in the corresponding states. After the calibration operation is completed, the adjustment operation is performed, which specifically includes: determining the user's current sleeping posture based on the comparison between the real-time detection value of the pressure sensor (13) and the reference detection value, and adjusting the air pressure of the neck airbag (11) and the head airbag (12) to a personalized preset height corresponding to the current sleeping posture when the sleeping posture is determined to change.

2. The smart pillow according to claim 1, characterized in that, The neck airbag (11) and head airbag (12) are connected to the control system (2) through the corresponding first pressure sensor (205) and second pressure sensor (206).

3. The smart pillow according to claim 1, characterized in that, The pressure sensor (13) is a strip-shaped flexible pressure sensor.

4. The smart pillow according to claim 1, characterized in that, The smart pillow also includes a thin padding cover (3), which detachably wraps the neck airbag (11), the head airbag (12), and the pressure sensor (13).

5. The smart pillow according to claim 1, characterized in that, The control system (2) includes a control subunit (201), an air pump (202), a multi-way solenoid valve (203), and a power module (204).

6. A control method for a smart pillow, applied to the smart pillow according to any one of claims 1-5, characterized in that, The method includes: Perform calibration steps to acquire and store the personalized preset heights of the neck airbag and head airbag corresponding to the user's supine and lateral positions, respectively, as well as the baseline detection values ​​of the pressure sensors in the corresponding states. The adjustment steps include: determining the user's current sleeping position based on a comparison between the real-time detection value of the pressure sensor and the reference detection value; and adjusting the air pressure of the neck airbag and head airbag to the personalized preset height corresponding to the current sleeping position in response to the determination of a change in sleeping position.

7. The control method according to claim 6, characterized in that, The calibration process includes a user-manual calibration step, specifically including: First calibration step: Guide the user to lie in a supine position and record the first supine air pressure value of the head airbag, the second supine air pressure value of the neck airbag, and the first reference pressure value and the first reference area value of the pressure sensor when the user confirms that it is comfortable. Second calibration step: Guide the user to lie on their side and record the first lateral pressure value of the head airbag, the second lateral pressure value of the neck airbag, and the second reference pressure value and the second reference area value of the pressure sensor when the user confirms that they are comfortable.

8. The control method according to claim 6, characterized in that, The step of determining the user's current sleeping position includes: Obtain the real-time pressure value and real-time pressure area value of the pressure sensor; If the real-time pressure value is greater than the first reference pressure value and less than or equal to the second reference pressure value, and / or the real-time pressure area value is greater than or equal to the second reference area value and less than half of the first reference area value, then the current sleeping position is determined to be side-lying. Otherwise, the current sleeping position is determined to be supine.

9. The control method according to claim 7, characterized in that, In the user manual calibration step, the user receives a manual adjustment command for the airbag height through the user interface, and records the corresponding air pressure value and sensor reference value after the user confirms it. The manual adjustment command is synchronized with the real-time changes in the height of the neck airbag and head airbag.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method for the smart pillow as described in any one of claims 6 to 9.

Images