Zero-gravity seat and control method

Abstract

Embodiments of the present application provide a zero-gravity seat and a control method, and relate to the technical field of seats. The method comprises: acquiring physiological parameter information of a target user; wherein the physiological parameter information comprises at least one of a heart rate parameter, a body movement parameter and a breathing parameter; and adjusting an inclination angle of a backrest and an inclination angle of a leg rest of the zero-gravity seat according to the physiological parameter, a change trend of the physiological parameter within a preset time and a preset control strategy. The inclination angle of the backrest and the inclination angle of the leg rest of the zero-gravity seat can be adjusted according to different riding states of the passenger during riding, thereby improving the long-time riding comfort of the zero-gravity seat.

Description

Technical Field

[0001] This invention relates to the field of seating technology, and more specifically, to a zero-gravity seat and its control method. Background Technology

[0002] As people's living standards continue to improve, car seats, as a key component of the vehicle interior, are receiving increasing attention for their comfort and functionality. Zero-gravity seats, which simulate the zero-gravity environment of space and effectively relieve body pressure, are highly favored by consumers.

[0003] However, existing zero-gravity seats often maintain a fixed adjustment angle after the user sits on them. They cannot adjust the seat angle in real time according to the passenger's different states during the ride, resulting in a significant reduction in the comfort of zero-gravity seats during long journeys. Summary of the Invention

[0004] The present invention aims to provide a zero-gravity seat and control method, which can adjust the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat according to the different sitting states of the passenger during the ride, thereby improving the long-term riding comfort of the zero-gravity seat.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a zero-gravity seat control method, the method comprising:

[0007] Obtain physiological parameter information of the target user; wherein, the physiological parameter information includes at least one of heart rate parameter, body movement parameter, and respiratory parameter;

[0008] Based on the physiological parameters, the trend of the physiological parameters within a preset time period, and the preset control strategy, the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat are adjusted.

[0009] In an optional implementation, the step of adjusting the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat based on the physiological parameters, the trend of the physiological parameters over a preset time period, and a preset control strategy includes:

[0010] Based on the physiological parameters, the riding state of the target user is determined; wherein, the riding state includes normal riding state, light sleep riding state, and deep sleep riding state;

[0011] Based on the seating state and the preset control strategy corresponding to the seating state, the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat are adjusted to the tilt angle corresponding to the seating state.

[0012] Based on the changing trend of the physiological parameters within the preset time period, the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat are adjusted.

[0013] In an optional implementation, the step of determining the riding status of the target user based on the physiological parameters includes:

[0014] Determine whether the physiological parameter is greater than a first preset threshold;

[0015] If the physiological parameter is greater than the first preset threshold, then the target user's riding state is confirmed to be the normal riding state;

[0016] Determine whether the physiological parameter simultaneously satisfies the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold;

[0017] If the physiological parameters simultaneously meet the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold, then the target user's riding state is confirmed to be a light sleep riding state.

[0018] Determine whether the physiological parameter is less than the second preset threshold;

[0019] If the physiological parameter is less than the second preset threshold, then the target user's riding state is confirmed to be a deep sleep riding state.

[0020] In an optional implementation, the preset control strategy includes a first preset control strategy corresponding to the normal riding state, a second preset control strategy corresponding to the light sleep riding state, and a third preset control strategy corresponding to the deep sleep riding state.

[0021] Wherein: in the first preset control strategy, the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat are both smaller than the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat in the second preset control strategy; in the second preset control strategy, the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat are both smaller than the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat in the third preset control strategy.

[0022] The step of adjusting the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat to the tilt angle corresponding to the seating state based on the seating state and the preset control strategy corresponding to the seating state includes:

[0023] If the sitting state is the normal sitting state, then the tilt angle of the backrest and the tilt angle of the leg rest of the zero gravity seat are adjusted to the tilt angle corresponding to the first preset control strategy according to the first preset control strategy.

[0024] If the sitting state is the light sleep sitting state, then the tilt angle of the backrest and the tilt angle of the leg rest of the zero gravity seat are adjusted to the tilt angle corresponding to the second preset control strategy according to the second preset control strategy.

[0025] If the riding state is the deep sleep riding state, then according to the third preset control strategy, the tilt angle of the backrest and the tilt angle of the leg rest of the zero gravity seat are adjusted to the tilt angle corresponding to the third preset control strategy.

[0026] In an optional implementation, the tilt angle of the backrest in the first preset control strategy ranges from 105° to 110°, and the tilt angle of the leg rest ranges from 120° to 125°.

[0027] In the second preset control strategy, the tilt angle of the backrest is in the range of 125° to 130°, and the tilt angle of the leg rest is in the range of 130° to 135°.

[0028] In the third preset control strategy, the tilt angle of the backrest ranges from 145° to 150°, and the tilt angle of the leg rest ranges from 140° to 145°.

[0029] In an optional implementation, the step of adjusting the tilt angle of the backrest and the tilt angle of the leg rest of the zero-gravity seat according to the changing trend of the physiological parameters within the preset time period includes:

[0030] Obtain the physiological parameters within the preset time period;

[0031] Based on the physiological parameters within a preset time period, the changing trend of the physiological parameters is determined; wherein, the changing trend of the physiological parameters includes at least a decreasing trend, an increasing trend, and a stable trend;

[0032] When the physiological parameters show a downward trend, the tilt angles of the backrest and the leg rest are increased by a preset adjustment range based on the current tilt angles of the backrest and the leg rest.

[0033] When the physiological parameters show an upward trend, the tilt angles of the backrest and the leg rest are reduced by a preset adjustment range based on the current tilt angles of the backrest and the leg rest.

[0034] When the trend of the physiological parameters is the stable trend, the current tilt angle of the backrest and the tilt angle of the leg rest are maintained.

[0035] In an optional implementation, the adjustment range is 0.5° to 2°.

[0036] In an optional implementation, the preset time ranges from 30s to 60s.

[0037] In an optional implementation, the step of obtaining the physiological parameter information of the target user includes:

[0038] Acquire detection data from a millimeter-wave radar located on the back of the zero-gravity seat and corresponding to the heart region of the target user;

[0039] Based on the detection data, the physiological parameter information of the target user is determined.

[0040] In a second aspect, the present invention provides a zero-gravity seat, including a memory storing executable program code and a processor coupled to the memory;

[0041] The processor can call the executable program code stored in the memory to execute the zero-gravity seat control method described in any of the foregoing embodiments.

[0042] The beneficial effects of the zero-gravity seat and control method provided in this invention include:

[0043] This application obtains physiological parameter information of a target user sitting in a zero-gravity seat. Based on these physiological parameters, their changing trends over a preset time period, and a preset control strategy, it adjusts the backrest and leg rest tilt angles of the zero-gravity seat. Since the physiological parameter information and their changing trends over a preset time period reflect the target user's current sitting state, adjusting the backrest and leg rest tilt angles according to the preset control strategy improves the comfort of long-term sitting in the zero-gravity seat. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a structural schematic diagram of the zero-gravity seat provided in this embodiment;

[0046] Figure 2 This is a schematic diagram of the circuit module of the zero-gravity seat provided in this embodiment;

[0047] Figure 3This is a flowchart illustrating the control method for the zero-gravity seat provided in this embodiment;

[0048] Figure 4 A flowchart illustrating a sub-step of step S2 in the zero-gravity seat control method provided in this embodiment;

[0049] Figure 5 This is a flowchart illustrating all the sub-steps of the zero-gravity seat control method provided in this embodiment.

[0050] Icons: 100-Zero Gravity Seat; 110-Seat Body; 111-Backrest; 112-Leg Rest; 113-First Motor; 114-Second Motor; 120-Memory; 130-Processor; 140-Millimeter Wave Radar; A-Backrest Tilting Angle; B-Leg Rest Tilting Angle. Detailed Implementation

[0051] As people's living standards continue to improve, car seats, as a key component of the vehicle interior, are receiving increasing attention for their comfort and functionality. Zero-gravity seats, which simulate the zero-gravity environment of space and effectively relieve body pressure, are highly favored by consumers.

[0052] However, existing zero-gravity seats often maintain a fixed adjustment angle after the user sits on them. They cannot adjust the seat angle in real time according to the passenger's different states during the ride, resulting in a significant reduction in the comfort of zero-gravity seats during long journeys.

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0055] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0058] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0059] The following detailed description of the overall structure, working principle, and technical effects of the zero-gravity seat and its control method provided by the present invention, through embodiments and in conjunction with the accompanying drawings, is a practical example.

[0060] Please refer to Figure 1 This embodiment provides a zero-gravity seat 100, which can adjust the tilt angle A of the backrest and the tilt angle B of the leg rest according to the different sitting states of the passenger during the ride, thereby improving the long-term riding comfort of the zero-gravity seat 100.

[0061] Please refer to Figure 1 and Figure 2 In this embodiment, the zero-gravity seat 100 includes a seat body 110, a memory 120, and a processor 130. The memory 120 stores executable program code, and the processor 130 can call the executable program code stored in the memory 120 to control the tilt angle A of the backrest and the tilt angle B of the leg rest of the seat body 110.

[0062] Furthermore, the processor 130 is connected to the storage medium via a bus. The storage medium stores a control program corresponding to the control method of the zero-gravity seat 100 in the following embodiments. After receiving an execution instruction, the processor 130 executes the program to implement the control method of the zero-gravity seat 100 disclosed in the following embodiments.

[0063] The storage medium may include high-speed random access memory (RAM) 120, and may also include non-volatile memory (NVM) 120.

[0064] Processor 130 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed through the integrated logic circuitry of processor 130's hardware or through software instructions. The processor 130 can be a general-purpose processor, including a Central Processing Unit (CPU), a Microcontroller Unit (MCU), a Complex Programmable Logic Device (CPLD), a Field-Programmable Gate Array (FPGA), embedded ARM chips, etc.

[0065] In this embodiment, the seat body 110 has a first motor 113 for adjusting the angle of the backrest 111 and a second motor 114 for adjusting the leg rest 112. The processor 130 is electrically connected to the first motor 113 and the second motor 114. The processor 130 can call executable program code stored in the memory 120 to control the rotation of the first motor 113 and the second motor 114.

[0066] Please refer to Figure 1 and Figure 2 In this embodiment, the zero-gravity seat 100 also includes a millimeter-wave radar 140, which is disposed inside the backrest 111 of the seat body 110 and corresponds to the position of the passenger's heart. The millimeter-wave radar 140 is electrically connected to the processor 130. The millimeter-wave radar 140 is used to detect the physiological parameter information of the target user sitting in the zero-gravity seat 100. The processor 130 can execute programs based on the physiological parameter information.

[0067] The heartbeat causes minute vibrations and displacement changes on the body surface. The millimeter-wave radar 140 detects heart rate parameters by detecting phase changes in the frequency-modulated continuous wave signal at a specific distance gate caused by the heartbeat. During respiration, the chest cavity rhythmically expands and contracts, causing minute changes in the distance between the chest cavity and the radar. These changes are also reflected in the phase and frequency of the signal received by the millimeter-wave radar 140, allowing for the detection of respiratory parameters. When the human body moves, the intensity, frequency, and phase of the reflected signal change; the millimeter-wave radar 140 also analyzes these changes to detect movement parameters.

[0068] Please refer to Figure 3 This embodiment also provides a control method for a zero-gravity seat 100, the method comprising:

[0069] S1. Obtain the physiological parameter information of the target user; wherein, the physiological parameter information includes at least one of the following: heart rate parameter, body movement parameter, and respiratory parameter;

[0070] It should be noted that the target user's physiological parameter information was obtained through millimeter-wave radar 140.

[0071] S2. Based on physiological parameters, the trend of physiological parameter changes within a preset time, and the preset control strategy, adjust the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero-gravity seat 100.

[0072] This embodiment acquires the physiological parameter information of the target user sitting in the zero-gravity seat 100, and adjusts the backrest tilt angle A and leg rest tilt angle B of the zero-gravity seat 100 based on the physiological parameters, the trend of physiological parameter changes over a preset time period, and a preset control strategy. Since the physiological parameter information and the trend of physiological parameter changes over a preset time period can reflect the target user's current sitting state, the backrest tilt angle A and leg rest tilt angle B of the zero-gravity seat 100 can be adjusted according to the preset control strategy, thereby improving the comfort of long-term sitting in the zero-gravity seat 100.

[0073] It should be noted that, generally, two of the physiological parameters—heart rate, body movement, and respiratory parameters—and their trends over a preset time period are selected for adjustment. This is then combined with a preset control strategy to avoid erroneous adjustments due to abnormal raw data. Specifically, the selection can be based on the trends of heart rate, body movement, and respiratory parameters over a preset time period; two of these parameters should exhibit similar trends.

[0074] Of course, in other embodiments of this application, one or all of the heart rate parameters, body movement parameters, and respiratory parameters may also be selected.

[0075] Please refer to Figure 4 Furthermore, step S2 includes the following sub-steps:

[0076] S21. Determine the riding status of the target user based on physiological parameters; among which, riding status includes normal riding status, light sleep riding status, and deep sleep riding status.

[0077] S22. Based on the seating state and the preset control strategy corresponding to the seating state, adjust the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero gravity seat 100 to the tilt angle corresponding to the seating state.

[0078] S23. Based on the trend of physiological parameter changes within a preset time, adjust the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero-gravity seat 100.

[0079] This embodiment determines the target user's sitting state based on physiological parameters, and then adjusts the tilt angle A of the backrest and the tilt angle B of the zero-gravity seat 100 to the corresponding angles based on the sitting state and a preset control strategy. This provides the target user with an optimal tilt angle A and B of the zero-gravity seat 100 during the initial sitting period, quickly improving initial comfort. As the target user's sitting time increases, their sitting state may transition from a normal sitting state to a light sleep sitting state, and then to a deep sleep sitting state. Alternatively, it may transition from a light sleep sitting state to a normal sitting state or from a deep sleep sitting state to a light sleep sitting state. This embodiment adjusts the tilt angle A of the backrest and the tilt angle B of the zero-gravity seat 100 based on the trend of physiological parameter changes over a preset time period. This allows for fine-tuning during the target user's sitting process to match the changing comfort requirements of their sitting state, thereby improving overall comfort.

[0080] Please refer to Figure 5 In this embodiment, S21 includes the following sub-steps:

[0081] S211. Determine whether the physiological parameters are greater than the first preset threshold;

[0082] S212. If the physiological parameters are greater than the first preset threshold, then the target user's riding status is confirmed to be a normal riding status.

[0083] S213. Determine whether the physiological parameters simultaneously satisfy the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold.

[0084] S214. If the physiological parameters simultaneously meet the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold, then the target user's riding state is confirmed to be a light sleep riding state.

[0085] S215. Determine whether the physiological parameters are less than the second preset threshold;

[0086] S216. If the physiological parameters are less than the second preset threshold, then the target user's riding state is confirmed to be a deep sleep riding state.

[0087] This embodiment can better determine the riding status of the target user by determining the range of the physiological parameters within the preset threshold, thereby facilitating more convenient adjustment.

[0088] Taking heart rate as an example, the first preset threshold is 80 beats / minute, and the second preset threshold is 60 beats / minute. Taking respiratory rate as an example, the first preset threshold is 20 beats / minute, and the second preset threshold is 10 beats / minute. Taking body movement as an example, the first preset threshold is 20 beats / minute, and the second preset threshold is 10 beats / minute.

[0089] When at least two of the above heart rate parameters, respiratory parameters, and body movement parameters are within the threshold range of the same riding state, the riding state can be confirmed as the state corresponding to the given threshold range.

[0090] In this embodiment, the preset control strategies include a first preset control strategy corresponding to the normal sitting state, a second preset control strategy corresponding to the light sleep sitting state, and a third preset control strategy corresponding to the deep sleep sitting state. Specifically: in the first preset control strategy, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero-gravity seat 100 are both smaller than those in the second preset control strategy; and in the second preset control strategy, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero-gravity seat 100 are both smaller than those in the third preset control strategy.

[0091] Please refer to Figure 5 Furthermore, step S22 includes the following sub-steps:

[0092] S221. If the seating state is the normal seating state, then according to the first preset control strategy, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero gravity seat 100 are adjusted to the tilt angle corresponding to the first preset control strategy.

[0093] S222. If the sitting state is a light sleep sitting state, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero gravity seat 100 are adjusted to the tilt angle corresponding to the second preset control strategy according to the second preset control strategy.

[0094] S223. If the seating state is a deep sleep seating state, then according to the third preset control strategy, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero gravity seat 100 are adjusted to the tilt angle corresponding to the third preset control strategy.

[0095] In this embodiment, the tilt angle A of the backrest and the tilt angle B of the leg rest of the zero-gravity seat 100 can be quickly matched with the current sitting state of the target user through the above adjustment method.

[0096] Furthermore, in the first preset control strategy, the backrest tilt angle A ranges from 105° to 110°, for example, 108°. The leg rest tilt angle B ranges from 120° to 125°, for example, 123°. In the second preset control strategy, the backrest tilt angle A ranges from 125° to 130°, for example, 128°, and the leg rest tilt angle B ranges from 130° to 135°, for example, 133°. In the third preset control strategy, the backrest tilt angle A ranges from 145° to 150°, for example, 148°, and the leg rest tilt angle B ranges from 140° to 145°, for example, 143°.

[0097] Since the first preset control strategy corresponds to normal sitting, this embodiment sets the backrest tilt angle A to 105° to 110° and the leg rest tilt angle B to 120° to 125°. This allows passengers to maintain a relatively upright sitting posture, facilitating activities such as observing road conditions and operating in-vehicle equipment during daily riding, thereby improving comfort in normal sitting conditions. The second preset control strategy corresponds to light sleep sitting. In this embodiment, the backrest tilt angle A to 125° to 130° and the leg rest tilt angle B to 130° to 135° are set in the second preset control strategy. This allows passengers to sit in a more relaxed state, reducing pressure on the back and waist, while preventing excessive backward leaning and avoiding waking up due to uncomfortable posture during light sleep. It also ensures a comfortable angle between the lower leg and thigh, promoting blood circulation in the legs and reducing muscle tension, thus improving comfort in light sleep sitting conditions. The third preset control strategy corresponds to the deep sleep riding state. In this embodiment, the tilt angle A of the backrest in the third preset control strategy is set to a range of 145° to 150°, and the tilt angle B of the leg rest is set to a range of 140° to 145°. This allows the passenger's body to be fully stretched, minimizing the pressure on various parts of the body and enabling the person to enter a deep relaxation state.

[0098] Please refer to Figure 5 In this embodiment, step S23 includes the following sub-steps:

[0099] S231. Obtain physiological parameters within a preset time period;

[0100] S232. Determine the trend of physiological parameter changes based on physiological parameters within a preset time period; wherein the trend of physiological parameter changes includes at least a decreasing trend, an increasing trend, and a stable trend.

[0101] S233. When the physiological parameters show a downward trend, increase the tilt angles A and B of the backrest and leg rest according to the preset adjustment range, based on the current tilt angles A and B of the backrest and leg rest.

[0102] S234. When the physiological parameters show an upward trend, reduce the tilt angles of the backrest A and the leg rest B by the preset adjustment range, based on the current tilt angles of the backrest A and the leg rest B.

[0103] S235. When the trend of physiological parameters is stable, maintain the current backrest tilt angle A and leg rest tilt angle B.

[0104] In this embodiment, different physiological parameters change trends are used to fine-tune the backrest tilt angle A and the leg rest tilt angle B using different logics, which can make passengers more comfortable when sitting for a long time.

[0105] In this embodiment, the adjustment range is from 0.5° to 2°. For example: 0.5°, 1°, 1.5°, 2°.

[0106] The adjustment range is set between 0.5° and 2° to avoid affecting passenger comfort due to excessive adjustment.

[0107] In this embodiment, the preset time ranges from 30s to 60s. For example, 15s, 30s, 40s, 45s, 50s, 60s, etc.

[0108] Setting the preset time range to 30s to 60s can more accurately determine the trend of physiological parameter changes.

[0109] Of course, in some embodiments of this application, the value of the preset time can also be selected according to requirements.

[0110] In this embodiment, physiological parameters can be collected every five minutes for one minute, and the collected data can be processed to obtain the trend of physiological parameter changes. Alternatively, physiological parameters can be continuously collected in real time, and the data collected from the previous 30 to 60 seconds every five minutes can be processed to obtain the trend of physiological parameter changes.

[0111] Please refer to Figure 5 Furthermore, step S1 includes:

[0112] S11. Acquire detection data from the millimeter-wave radar 140, which is set on the backrest 111 of the zero-gravity seat 100 and corresponds to the heart region of the target user.

[0113] S12. Based on the detection data, determine the physiological parameter information of the target user.

[0114] The physiological parameters of the target user can be determined by the detection data of the millimeter-wave radar 140, which is set on the backrest 111 of the zero-gravity seat 100 and corresponds to the heart area of ​​the target user. The raw data can be obtained directly and more conveniently.

[0115] In summary, this embodiment acquires the physiological parameter information of the target user sitting in the zero-gravity seat 100, and adjusts the backrest tilt angle A and leg rest tilt angle B of the zero-gravity seat 100 based on the physiological parameters, the trend of physiological parameter changes over a preset time period, and a preset control strategy. Since the physiological parameter information and the trend of physiological parameter changes over a preset time period can reflect the target user's current sitting state, the backrest tilt angle A and leg rest tilt angle B of the zero-gravity seat 100 can be adjusted according to the preset control strategy, thereby improving the comfort of long-term sitting in the zero-gravity seat 100.

[0116] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A zero-gravity seat control method, characterized in that, The method includes: Obtain physiological parameter information of the target user; wherein, the physiological parameter information includes at least one of heart rate parameter, body movement parameter, and respiratory parameter; Based on the physiological parameters, the trend of the physiological parameters within a preset time period, and the preset control strategy, adjust the tilt angle (A) of the backrest and the tilt angle (B) of the leg rest of the zero-gravity seat. The step of adjusting the tilt angle (A) of the backrest and the tilt angle (B) of the zero-gravity seat based on the physiological parameters, the trend of the physiological parameters within a preset time period, and a preset control strategy includes: In the initial stage of riding, the riding state of the target user is determined based on the physiological parameters; wherein, the riding state includes normal riding state, light sleep riding state, and deep sleep riding state. Based on the seating state and the preset control strategy corresponding to the seating state, the tilt angle (A) of the backrest and the tilt angle (B) of the zero-gravity seat are adjusted to the tilt angle corresponding to the seating state. Then, based on the trend of the physiological parameters within the preset time, the tilt angle (A) of the backrest and the tilt angle (B) of the zero gravity seat are adjusted. The step of adjusting the tilt angle (A) of the backrest and the tilt angle (B) of the zero-gravity seat based on the changing trend of the physiological parameters within the preset time period includes: Obtain the physiological parameters within the preset time period; Based on the physiological parameters within a preset time period, the changing trend of the physiological parameters is determined; wherein, the changing trend of the physiological parameters includes at least a decreasing trend, an increasing trend, and a stable trend; When the physiological parameters show a downward trend, the tilt angles of the backrest (A) and the leg rest (B) are increased by a preset adjustment range based on the current tilt angles of the backrest (A) and the leg rest (B). When the physiological parameters show an upward trend, the tilt angles of the backrest (A) and the leg rest (B) are reduced by a preset adjustment range based on the current tilt angles of the backrest (A) and the leg rest (B). When the trend of the physiological parameters is the stable trend, the current tilt angle of the backrest (A) and the tilt angle of the leg rest (B) are maintained. The preset adjustment range is from 0.5° to 2°.

2. The zero-gravity seat control method according to claim 1, characterized in that, The step of determining the riding status of the target user based on the physiological parameters includes: Determine whether the physiological parameter is greater than a first preset threshold; If the physiological parameter is greater than the first preset threshold, then the target user's riding state is confirmed to be the normal riding state; Determine whether the physiological parameter simultaneously satisfies the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold; If the physiological parameters simultaneously meet the conditions of being less than or equal to the first preset threshold and greater than or equal to the second preset threshold, then the target user's riding state is confirmed to be a light sleep riding state. Determine whether the physiological parameter is less than the second preset threshold; If the physiological parameter is less than the second preset threshold, then the target user's riding state is confirmed to be a deep sleep riding state.

3. The zero-gravity seat control method according to claim 1 or 2, characterized in that, The preset control strategy includes a first preset control strategy corresponding to the normal riding state, a second preset control strategy corresponding to the light sleep riding state, and a third preset control strategy corresponding to the deep sleep riding state. Wherein: in the first preset control strategy, the tilt angle (A) of the backrest and the tilt angle (B) of the zero-gravity seat are both smaller than the tilt angle (A) of the backrest and the tilt angle (B) of the leg rest in the second preset control strategy; in the second preset control strategy, the tilt angle (A) of the backrest and the tilt angle (B) of the leg rest in the zero-gravity seat are both smaller than the tilt angle (A) of the backrest and the tilt angle (B) of the leg rest in the third preset control strategy; The step of adjusting the tilt angle (A) of the backrest and the tilt angle (B) of the zero-gravity seat to the tilt angle corresponding to the seating state based on the seating state and the preset control strategy corresponding to the seating state includes: If the sitting state is the normal sitting state, then the tilt angle (A) of the backrest and the tilt angle (B) of the zero gravity seat are adjusted to the tilt angle corresponding to the first preset control strategy according to the first preset control strategy. If the sitting state is the light sleep sitting state, then the tilt angle (A) of the backrest and the tilt angle (B) of the zero gravity seat are adjusted to the tilt angle corresponding to the second preset control strategy according to the second preset control strategy. If the sitting state is the deep sleep sitting state, then according to the third preset control strategy, the tilt angle (A) of the backrest and the tilt angle (B) of the zero gravity seat are adjusted to the tilt angle corresponding to the third preset control strategy.

4. The zero-gravity seat control method according to claim 3, characterized in that, In the first preset control strategy, the tilt angle (A) of the backrest ranges from 105° to 110°, and the tilt angle (B) of the leg rest ranges from 120° to 125°. In the second preset control strategy, the tilt angle (A) of the backrest is in the range of 125° to 130°, and the tilt angle (B) of the leg rest is in the range of 130° to 135°. In the third preset control strategy, the tilt angle (A) of the backrest ranges from 145° to 150°, and the tilt angle (B) of the leg rest ranges from 140° to 145°.

5. The zero-gravity seat control method according to claim 1, characterized in that, The preset time ranges from 30s to 60s.

6. The zero-gravity seat control method according to claim 1, characterized in that, The step of obtaining the physiological parameter information of the target user includes: Acquire detection data from a millimeter-wave radar (140) located on the backrest (111) of the zero-gravity seat and corresponding to the heart region of the target user; Based on the detection data, the physiological parameter information of the target user is determined.

7. A zero-gravity seat, characterized in that, It includes a memory (120) storing executable program code and a processor (130) coupled to the memory (120). The processor (130) can call the executable program code stored in the memory (120) to execute the zero-gravity seat control method according to any one of claims 1 to 6.

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