A smart bed screen without driving mechanism and control method thereof

Abstract

The present invention relates to the field of furniture technology, and specifically discloses a smart bed screen without a driving mechanism and a control method thereof, wherein the smart bed screen comprises: a bed screen body; an adjustable support assembly, wherein the adjustable support assembly comprises a support airbag installed on the bed screen body and a pressure sensor for sensing the air pressure inside the support airbag; an inflation device, wherein the inflation device is used to deliver gas to the interior of the support airbag; a deflation device, wherein the deflation device is used to release the gas inside the support airbag; and a control device, wherein the control device is electrically connected to the pressure sensor, the inflation device, and the deflation device, respectively, and is used to control the air pressure inside the support airbag. The present invention provides a smart bed screen without a driving mechanism and a control method thereof, which can adjust the support according to the user's sitting posture, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture, and in particular to an intelligent bed screen without a driving mechanism and a control method thereof. Background Art

[0002] Most beds are equipped with a bed screen at the head of the bed. In order to facilitate the user to lean against the bed screen when sitting on the bed, the bed screen is usually tilted. The current bed screen is only a tilted wooden board, which does not have the function of telescopic movement. Therefore, the support method cannot be adjusted as the user's sitting posture changes, which greatly reduces the user experience.

[0003] Therefore, it is necessary to improve the existing bed screen to solve the problem that it cannot be supported and adjusted according to the user's sitting posture. Summary of the invention

[0004] An object of the present invention is to provide a smart bed screen without a driving mechanism and a control method thereof, which can adjust the support according to the user's sitting posture, thereby improving the user's experience.

[0005] To achieve the above objectives, on the one hand, the present invention provides a smart bed screen without a driving mechanism, comprising:

[0006] Bed screen body;

[0007] An adjustable support assembly, the adjustable support assembly comprising a support airbag mounted on the bed screen body and a pressure sensor for sensing the air pressure in the support airbag:

[0008] an inflation device, the inflation device being used to deliver gas to the interior of the support airbag;

[0009] A deflation device, the deflation device is used to release the gas inside the support airbag;

[0010] A control device is electrically connected to the pressure sensor, the inflation device and the deflation device respectively, and is used to control the air pressure inside the support airbag.

[0011] Optionally, at least one supporting area is provided on a side of the bed screen body close to the human body, and at least one adjustable supporting component is provided in the supporting area.

[0012] Optionally, the support airbags of the adjustable support assemblies in the same support area are arranged sequentially from top to bottom.

[0013] Optionally, a support plate is provided between the support airbag and the bed screen body.

[0014] Optionally, the control device includes a timer, which is electrically connected to the inflation device and the deflation device, respectively, and is used to record the inflation time of the inflation device and to record the deflation time of the deflation device.

[0015] On the other hand, the present invention provides a control method applicable to the above-mentioned smart bed screen without a driving mechanism, which comprises:

[0016] The pressure sensor detects the air pressure inside the support airbag in real time;

[0017] When the change value of the air pressure in the support airbag reaches the entry condition, the control device enters the adjustable mode;

[0018] The control device adjusts the air pressure in the support air bag to a predetermined pressure value;

[0019] When the change value of the air pressure in the support airbag reaches the inflation condition, the control device controls the inflation device to inflate the support airbag;

[0020] When the change value of the air pressure in the support airbag reaches the deflation condition, the control device controls the deflation device to deflate the support airbag;

[0021] When the change value of the air pressure in the support airbag reaches an exit condition, the control device exits the adjustable mode.

[0022] Optionally, the change value of the air pressure inside the support airbag reaches the entry condition specifically:

[0023] The air pressure inside the support airbag increases within a first period of time and is greater than a first threshold.

[0024] Optionally, the change in the air pressure in the support airbag to reach the inflation condition is specifically:

[0025] The air pressure inside the support airbag decreases by more than a second threshold value within a second period of time.

[0026] Optionally, the air pressure change value in the support airbag reaches the deflation condition specifically:

[0027] The air pressure inside the support airbag increases by more than a third threshold value within a third time.

[0028] Optionally, the change value of the air pressure in the support airbag reaches the exit condition specifically:

[0029] The air pressure inside the support airbag increases by more than a fourth threshold value within a fourth time; the third time is different from the fourth time, and / or the fourth threshold value is different from the third threshold value.

[0030] The beneficial effects of the present invention are: providing an intelligent bed screen without a driving mechanism and a control method thereof, which, on the one hand, uses a supporting airbag as a supporting structure, and can maintain close contact with the user's back as the user's sitting posture changes without using a driving mechanism such as a motor or a cylinder; on the other hand, a control device is provided to control the inflation device and the deflation device, and the supporting force can be adaptively adjusted according to the user's needs, thereby solving the problem that traditional bed screens cannot be supported and adjusted according to the user's sitting posture, resulting in a poor user experience. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 1 A schematic diagram of the front structure of a smart bed screen without a driving mechanism provided in an embodiment;

[0033] Figure 2 A schematic diagram of the side structure of a smart bed screen without a driving mechanism provided in an embodiment;

[0034] Figure 3 A flow chart of a control method provided in an embodiment.

[0035] In the figure:

[0036] 1. Bed screen body; 101. Accommodation slot;

[0037] 2. Support airbag;

[0038] 3. Support plate;

[0039] 4. Air pump;

[0040] 5. Intake valve;

[0041] 6. Air release valve;

[0042] 7. Control device;

[0043] 8. Pressure sensor. DETAILED DESCRIPTION

[0044] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it is to be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally disposed component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally disposed component.

[0046] In addition, terms such as "long", "short", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific direction or operate with a specific direction structure, and should not be understood as a limitation of the present invention.

[0047] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0048] Embodiment 1

[0049] See also Figure 1-2 This embodiment provides a smart bed screen without a driving mechanism, including a bed screen body 1, an adjustable support assembly, an inflation device, a deflation device and a control device 7. The adjustable support assembly includes a support airbag 2 installed on the bed screen body 1 and a pressure sensor 8 for sensing the air pressure inside the support airbag 2. The inflation device is used to deliver gas to the interior of the support airbag 2. The deflation device is used to release the gas inside the support airbag 2. The control device 7 is electrically connected to the pressure sensor 8, the inflation device and the deflation device, respectively, and is used to control the air pressure inside the support airbag 2.

[0050] It should be understood that in order to solve the problem that traditional bed screens cannot adjust their support according to the user's sitting posture, resulting in a poor user experience, two improvements are needed. First, when the user's sitting posture changes, the support structure can change with the state of the user's back and fit closely to the user's back so that the user's back does not lose support. Second, when the user's sitting posture changes, the support force required for the user's back will change. The support force provided by the support structure to the user should be adaptively adjusted. For example, when the user's back is almost vertical, the support force can be smaller, but when the user's back is almost lying flat, the support force needs to be larger, that is, when the user changes from sitting upright to sitting slumped, the support force needs to increase, and when the user changes from sitting slumped to sitting upright, the support force needs to decrease.

[0051] The smart bed screen without a driving mechanism provided in this embodiment, on the one hand, uses the support airbag 2 as the support structure in contact with the user's back. The support airbag 2 can keep in contact with the user's back at all times as the user's sitting posture changes, provide support for the user, and has a high degree of fit with the user's back; when the user leans on the support airbag 2, if the user feels that the support airbag 2 is too soft or the supporting force is insufficient, it means that the air pressure in the bag of the support airbag 2 is relatively low, and the control device 7 can be used to start the inflation device to supply gas to the support airbag 2 to increase the air pressure in the bag of the support airbag 2, thereby increasing the supporting force provided by the support airbag 2 to the user; conversely, if the user feels that the support airbag 2 is too hard or the supporting force is too great, it means that the air pressure in the bag of the support airbag 2 is relatively high, and the control device 7 can be used to start the deflation device to release the gas inside the support airbag 2 to reduce the air pressure in the bag of the support airbag 2, thereby reducing the supporting force provided by the support airbag 2 to the user. The smart bed screen without a driving mechanism provided in this embodiment can, firstly, maintain close contact with the user's back as the user's sitting posture changes without using a driving mechanism such as a motor or a cylinder; secondly, the supporting force can be adaptively adjusted according to the user's needs, thereby greatly improving the user experience.

[0052] It should be noted that the pressure sensor 8 can sense the air pressure inside the support airbag 2 to prevent over-inflation or over-deflation.

[0053] Optionally, the side of the bed screen body 1 close to the human body is provided with at least one support area, and at least one adjustable support assembly is provided in the support area. Furthermore, the support airbags 2 of each adjustable support assembly in the same support area are arranged in sequence from top to bottom.

[0054] For example, if the bed screen body 1 is suitable for a single bed, a support area can be set in the central position of the bed screen body 1; if the bed screen body 1 is suitable for a double bed, two support areas arranged side by side on the left and right can be set in the middle position of the bed screen body 1. Of course, as the size of the bed screen body 1 increases, three, four or even more laterally arranged support areas can be set. It can be understood that only one larger support airbag 2 can be used in the same support area to provide support for the shoulders and waist at the same time; or two smaller support airbags 2 can be set, the upper support airbag 2 provides support for the shoulders, and the lower support airbag 2 provides support for the waist. Of course, in order to facilitate the detailed control of the support force at each position of the back, three, four or even more support airbags 2 can also be set.

[0055] Optionally, the inflation device includes an inflation pump 4 and a plurality of air inlet valves 5, and the deflation device is an air deflation valve 6. Specifically, each support airbag 2 is connected to an air inlet valve 5 and an air deflation valve 6, respectively, and all the air inlet valves 5 are connected to the inflation pump 4. When a certain support airbag 2 needs to be inflated, the control device 7 starts the inflation pump 4 and opens the corresponding air inlet valve 5, and when a certain support airbag 2 needs to be deflated, the control device 7 opens the corresponding air deflation valve 6. Optionally, the control device 7 and the inflation pump 4 can be fixed to the side or edge of the bed screen body 1.

[0056] In this embodiment, a support plate 3 is provided between the support airbag 2 and the bed screen body 1 .

[0057] Optionally, the bed screen main body 1 is provided with a receiving groove 101 which can accommodate the support plate 3, and a push-pull mechanism such as a cylinder is provided in the receiving groove 101. When the support airbag 2 is needed, the push-pull mechanism pushes the support plate 3 out; when the support airbag 2 is not needed, the push-pull mechanism retracts the support plate 3 and hides it in the receiving groove 101.

[0058] Optionally, the support plate 3 is detachably connected to the bed screen body 1. As an optional detachable connection method, the support plate 3 is fixed with a magnet, the bed screen body 1 is fixed with an iron block, and the support plate 3 and the bed screen body 1 are magnetically connected through the magnet and the iron block; or, the bed screen body 1 is provided with a slot opening upward, and the support plate 3 is provided with a 7-shaped plug block extending downward, and the 7-shaped plug block can be inserted into the slot from top to bottom; or, a fixing nut is fixed on the bed screen body 1, and a bolt hole is provided on the support plate 3, and a fixing bolt is passed through the bolt hole and threadedly connected to the fixing nut; or, the support plate 3 is buckled with the bed screen body 1 through a concealed buckle; or, the support plate 3 is bonded to the bed screen body 1 through double-sided tape or the like.

[0059] The support plate 3 and the bed screen body 1 are detachably connected. On the one hand, the bed screen body 1 is generally not easy to be damaged and has a high reusability. When the adjustable support component needs to be replaced, the original bed screen body 1 can be retained and continued to be used to avoid waste of resources. On the other hand, the support plate 3, the adjustable support component, the inflation device, the deflation device and the control device 7 can be combined into a movable integrated whole, which is convenient for the transformation of the existing traditional bed screen. For example, a blind hole is opened on the traditional bed screen, and a fixing nut or an iron block is placed in the blind hole to achieve connection with the integrated whole, thereby completing the transformation of the traditional bed screen.

[0060] Optionally, the control device 7 includes a timer, which is electrically connected to the inflation device and the deflation device, respectively, and is used to record the inflation time of the inflation device and to record the deflation time of the deflation device.

[0061] In this embodiment, when inflating or deflation is performed, the working time is used as the stopping condition of the inflating device and the deflation device. That is, when the air pressure in the support airbag 2 needs to be changed, the inflating device inflates or the deflation device deflates for a specified time (for example, 2 seconds), and the inflating device or the deflation device stops working after 2 seconds.

[0062] In some other embodiments, the pressure change amount sensed by the pressure sensor 8 may also be used as a stop condition for the inflation device and the deflation device. For example, if the air pressure in the support airbag 2 needs to be changed, the inflation device inflates or the deflation device deflates until the air pressure change amount in the support airbag 2 reaches a specified pressure value (e.g., 0.1 Bar), and the inflation device or the deflation device stops working.

[0063] The smart bed provided in this embodiment can control the inflation device and the deflation device using buttons on the control device 7 or using a mobile terminal such as a smart phone wirelessly connected to the control device 7, or can also be controlled using the control method provided in Example 2.

[0064] The present embodiment provides an intelligent bed screen without a driving mechanism, which is suitable for application scenarios where support and adjustment are required for users. On the one hand, a supporting airbag 2 is used as a supporting structure, and the supporting airbag 2 can maintain close contact with the user's back as the user's sitting posture changes without the use of a driving mechanism such as a motor or a cylinder; on the other hand, a control device 7 is provided to control the inflation device and the deflation device, and the supporting force can be adaptively adjusted according to the user's needs, thereby solving the problem that traditional bed screens cannot be supported and adjusted according to the user's sitting posture, resulting in a poor user experience.

[0065] Embodiment 2

[0066] This embodiment provides a control method for the smart bed screen described in Embodiment 1, which has corresponding functions and corresponding beneficial effects.

[0067] See also Figure 3 , the control method comprises:

[0068] S10: The pressure sensor 8 detects the air pressure inside the support airbag 2 in real time.

[0069] S20: When the change value of the air pressure inside the support airbag 2 reaches the entry condition, the control device 7 enters the adjustable mode.

[0070] It is understandable that at the beginning, the user does not lean on the smart bed screen, and the pressure in the support airbag 2 should maintain a constant value. Optionally, the constant value can be a lower initial pressure. When the user leans on the smart bed screen, it is equivalent to suddenly squeezing the support airbag 2, so the air pressure in the support airbag 2 will increase sharply in a short time. Corresponding to this user scenario, in this embodiment, when the air pressure in the support airbag 2 increases by more than a first threshold value (e.g., 0.3 Bar) within a first time (e.g., 1s), the control device 7 enters the adjustable mode.

[0071] Optionally, before entering the adjustable mode, the support plate 3 is located in the receiving groove 101, and the smart bed screen remains in a standby state, that is, the inflation device and the air supply device are both turned off to save power, and only the pressure sensor 8 is working. After entering the adjustable mode, the push-pull mechanism pushes the support plate 3 out, and the inflation device and the air supply device are powered on and standby, ready to inflate or deflate at any time.

[0072] Furthermore, the first time and the first threshold are adjustable, which is equivalent to the adjustable sensitivity of entering the adjustable mode, which can effectively reduce the probability of entering the adjustable mode by mistake. For example, if you are annoyed because you often accidentally touch the support airbag 2 to enter the adjustable mode, you can extend the first time and increase the first threshold to reduce the sensitivity of entering the adjustable mode. If you feel inconvenient because you often need to squeeze the support airbag 2 hard to enter the adjustable mode, you can reduce the first time and reduce the first threshold to increase the sensitivity of entering the adjustable mode.

[0073] Preferably, the first time and the first threshold value can be adjusted by the control device 7 , or by a mobile terminal that is communicatively connected to the control device 7 .

[0074] S30: The control device 7 adjusts the air pressure inside the support airbag 2 to a predetermined pressure value.

[0075] In order to prevent the support airbag 2 from being subjected to high pressure for a long time, which may reduce its service life, the initial pressure of the air pressure in the bag is generally low. After entering the adjustable mode, the inflation device is first started to increase the air pressure in the bag to a predetermined pressure value. Specifically, the predetermined pressure value can be regarded as a reference for subsequent adjustments, which can be set at the factory or by the user, or the control device 7 records the pressure data commonly used by the user within a period of time such as a week or a month, and uses the average value as the predetermined pressure value.

[0076] S401 : When the change value of the air pressure inside the support airbag 2 reaches the inflation condition, the control device 7 controls the inflation device to inflate the support airbag 2 .

[0077] Preferably, when the air pressure in the support airbag 2 decreases by more than a second threshold value within the second time, the control device 7 controls the inflation device to inflate the support airbag 2. This application scenario is: when the user leans forward, the airbag will be automatically inflated.

[0078] Specifically, when the air pressure in the bag rises to a predetermined pressure value, the user feels that the supporting force is too small and leans forward. At this time, the pressure of the back on the support airbag 2 becomes smaller, and the pressure in the bag drops suddenly. When the pressure in the bag drops by a certain value in a short time, the control device 7 can understand that the user has leaned forward and needs to inflate the support airbag 2, so it starts the inflation device to inflate. Therefore, for the user, only need to lean forward a certain amount and keep it for a certain time to make the control device 7 automatically inflate the support airbag 2.

[0079] It is understandable that the second time and the second threshold setting can determine the sensitivity of automatic inflation. For example, if a slight rotation of the body will cause automatic inflation during the use of the support airbag 2, the second time can be extended and the second threshold can be increased to reduce the sensitivity of automatic inflation. If the body needs to lean forward significantly during the use of the support airbag 2 to automatically inflate, the second time can be reduced and the second threshold can be reduced to increase the sensitivity of automatic inflation.

[0080] Optionally, the inflating device inflates once each time the pressure change value in the support airbag 2 reaches the inflation condition. Specifically, the inflation may be a process that lasts for a specified time or until the pressure increment in the airbag reaches a preset value. For example, each time the user leans forward, the airbag is automatically inflated for 2 seconds, or automatically inflated to a pressure increase of 0.1 Bar, etc. If the user feels that it is not enough, the user can lean forward again to inflate for the second time.

[0081] S402 : When the change value of the air pressure inside the support airbag 2 reaches the deflation condition, the control device 7 controls the deflation device to deflate the support airbag 2 .

[0082] Preferably, when the air pressure in the support airbag 2 increases by more than a third threshold value within a third time, the control device 7 controls the deflation device to deflate the support airbag 2. This application scenario is: when the user pushes the support airbag 2 backward, it will automatically deflate.

[0083] Specifically, when the air pressure in the bag rises to a predetermined pressure value, the user feels that the supporting force is too great, and leans back to squeeze the supporting airbag 2. At this time, the squeezing force of the back on the supporting airbag 2 becomes greater, and the pressure in the bag rises suddenly. When the pressure in the bag rises to a certain value in a short time, the control device 7 can understand that the user has leaned back and needs to deflate the supporting airbag 2, so it starts the deflation device to deflate. Therefore, for the user, only need to lean back a certain amount and keep it for a certain time to make the control device 7 automatically deflate the supporting airbag 2.

[0084] It is understandable that the settings of the third time and the third threshold value can determine the sensitivity of automatic deflation. For example, if a slight rotation of the body will cause automatic deflation during the use of the support airbag 2, the third time can be extended and the third threshold value can be increased to reduce the sensitivity of automatic deflation. If the body needs to lean back significantly during the use of the support airbag 2 to automatically deflate, the third time can be reduced and the third threshold value can be reduced to increase the sensitivity of automatic deflation.

[0085] Optionally, the deflation device deflates once each time the pressure change value in the support airbag 2 reaches the deflation condition. Specifically, deflation once may be a deflation process that lasts for a specified time or deflates until the pressure reduction in the airbag reaches a preset value. For example, each time the user leans back, the airbag automatically deflates for 2 seconds, or automatically deflates until the pressure is reduced by 0.1 Bar, etc. If the user feels that it is not enough, the user can lean back again to deflate for the second time.

[0086] S50: When the change value of the air pressure inside the support airbag 2 reaches the exit condition, the control device 7 exits the adjustable mode.

[0087] In this embodiment, when the air pressure in the support airbag 2 increases by more than a fourth threshold value within a fourth time, the control device 7 exits the adjustable mode. This application scenario is: when the user pushes the body backward and squeezes the support airbag 2 for a long time, the adjustable mode will be automatically exited.

[0088] In order to distinguish from S402, the third time is different from the fourth time, and / or the fourth threshold is different from the third threshold. Preferably, the third time can be the same as the fourth time, and the fourth threshold is greater than the third threshold, that is, lightly pressing the support airbag 2 is deflation, and heavy pressing the support airbag 2 is exiting the adjustable mode; the fourth time can also be greater than the third time, and the fourth threshold is equal to the third threshold, that is, short-term squeezing the support airbag 2 is deflation, and long-term squeezing the support airbag 2 is exiting the adjustable mode.

[0089] Optionally, after exiting the adjustable mode, the smart bed screen returns to the standby state, the air pressure in the bag returns to the initial pressure, and the push-pull mechanism retracts the support plate 3 into the accommodating groove 101.

[0090] This embodiment provides a control method suitable for a smart bed screen, which is applied to application scenarios for supporting and adjusting the user. The user only needs to lean forward or backward to achieve automatic inflation or deflation. The adjustment is convenient, which greatly improves the user experience.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control method, applicable to a smart bed screen without a driving mechanism, characterized in that: The smart bed screen without a driving mechanism comprises: Bed screen body; An adjustable support assembly, the adjustable support assembly comprising a support airbag mounted on the bed screen body and a pressure sensor for sensing the air pressure in the support airbag: an inflation device, the inflation device being used to deliver gas to the interior of the support airbag; A deflation device, the deflation device is used to release the gas inside the support airbag; A control device, the control device being electrically connected to the pressure sensor, the inflation device and the deflation device respectively, and being used to control the air pressure inside the support airbag; The method comprises: The pressure sensor detects the air pressure inside the support airbag in real time; When the change value of the air pressure in the support airbag reaches the entry condition, the control device enters the adjustable mode; The control device adjusts the air pressure in the support air bag to a predetermined pressure value; When the user leans forward so that the change value of the air pressure in the support airbag reaches the inflation condition, the control device controls the inflation device to inflate the support airbag; each time the change value of the air pressure in the support airbag reaches the inflation condition, the inflation device inflates once; specifically, inflation once means that the inflation process lasts for a specified time or is inflated until the air pressure increment in the airbag reaches a preset value; When the user leans back so that the change value of the air pressure in the support airbag reaches the deflation condition, the control device controls the deflation device to deflate the support airbag; each time the change value of the air pressure in the support airbag reaches the deflation condition, the deflation device deflates once, specifically, deflation once means that the deflation process lasts for a specified time or until the air pressure reduction in the airbag reaches a preset value; When the user leans back so that the change value of the air pressure in the support airbag reaches the exit condition, the control device exits the adjustable mode; in, The air pressure change value in the support airbag reaches the deflation condition specifically when: the air pressure in the support airbag increases by more than a third threshold value within a third time; The change in the air pressure inside the support airbag reaches the exit condition as follows: The air pressure inside the support airbag increases by more than a fourth threshold value within a fourth time; the third time is different from the fourth time, and / or the fourth threshold value is different from the third threshold value.

2. The control method according to claim 1, characterized in that: The change in the air pressure inside the support airbag reaches the entry condition as follows: The air pressure inside the support airbag increases within a first period of time and is greater than a first threshold.

3. The control method according to claim 1, characterized in that: The change in the air pressure inside the support airbag to reach the inflation condition is specifically: The air pressure inside the support airbag decreases by more than a second threshold value within a second period of time.

4. The control method according to claim 1, characterized in that: At least one supporting area is provided on the side of the bed screen body close to the human body, and at least one adjustable supporting component is provided in the supporting area.

5. The control method according to claim 4, characterized in that: The support airbags of the adjustable support assemblies in the same support area are arranged in sequence from top to bottom.

6. The control method according to claim 1, characterized in that: A support plate is provided between the support airbag and the bed screen body.

7. The control method according to claim 1, characterized in that: The control device comprises a timer, which is electrically connected to the inflation device and the deflation device respectively, and is used to record the inflation time of the inflation device and the deflation time of the deflation device.

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