Posture adjustment method, system and device based on Wifi sensing

Abstract

In order to overcome the prior art, the application provides a WifiSensing-based sitting posture adjustment method, system and device, which comprises the following steps: periodically collecting sitting posture data of a user after the user enters a monitoring stage; comparing the sitting posture data with standard sitting posture data to obtain a comparison result; and adjusting the angle of a seat used by the user according to the comparison result in a segmented manner, so that the user actively adjusts the sitting posture until the standard sitting posture is met. The method can determine the specific use scene of the user through the pulse frequency and the breathing frequency, and then adjust the angle of the chair surface in a segmented manner, so that the user can consciously ensure the standard sitting posture or approach the standard sitting posture when engaging in learning.

Description

Technical Field

[0001] This invention relates to the field of study desks and chairs, and more particularly to a method, system, and device for adjusting sitting posture based on the user's pulse rate and respiratory rate using WifiSensing. Background Technology

[0002] Student desks and chairs are common learning aids that provide students with an independent study space, help them develop independent learning habits, and cultivate the ability to organize neatly. More importantly, they can help students develop correct posture, protect their eyesight, and safeguard their spinal health.

[0003] Existing study desks and chairs typically address posture issues by issuing warning voice prompts. However, these prompts interrupt students when they are engaged in focused thinking, preventing them from fully concentrating on their studies. Over time, this leads to decreased concentration and poorer learning outcomes. Other methods use video cameras to monitor posture, but in certain scenarios, such as when a student is not reading but simply resting, the system may misinterpret this as incorrect posture and issue incorrect posture monitoring data.

[0004] It is evident that the existing study desks and chairs are not effective in adjusting posture, and a new method for adjusting posture is urgently needed. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a sitting posture adjustment method, system and device based on WifiSensing, for solving at least one of the aforementioned technical problems.

[0006] Specifically, the technical solution is as follows:

[0007] A sitting posture adjustment method based on WifiSensing includes:

[0008] Once the user enters the monitoring phase, the user's sitting posture data is collected periodically.

[0009] The sitting posture data is compared with standard sitting posture data to obtain the comparison results;

[0010] Based on the comparison results, the angle of the chair used by the user is adjusted in stages, so that the user can actively adjust their sitting posture until it meets the standard sitting posture.

[0011] The phrase "when the user enters the monitoring phase, periodically collecting the user's sitting posture data" includes:

[0012] collecting pulse frequency and breath frequency of the user;

[0013] confirming that the user enters a monitoring stage when the pulse frequency of the user rises and the breath frequency is stable;

[0014] collecting sitting posture data of the user after the user enters the monitoring stage, including angle between the chest and the leg of the user and distance between the chest and the table surface.

[0015] comparing the sitting posture data with standard sitting posture data to obtain a comparison result, including:

[0016] comparing the angle between the chest and the leg of the user and the distance between the chest and the table surface with the angle between the chest and the leg and the distance between the chest and the table surface in the standard sitting posture data respectively to obtain angle difference between the chest and the leg and distance difference between the chest and the table surface as the comparison result.

[0017] adjusting the angle of the seat used by the user according to the comparison result, including:

[0018] dividing the seat surface of the seat into multiple areas laterally;

[0019] obtaining relative position of the user on the seat surface according to force of each area;

[0020] taking one area closest to the back of the seat as a reference area according to the relative position;

[0021] taking an area adjacent to the reference area and far away from the back of the seat as an adjustment area;

[0022] adjusting the angle between the adjustment area and the back of the seat to make the sitting posture of the user tend to standard sitting posture.

[0023] A sitting posture adjustment system based on WifiSensing, including:

[0024] a control module;

[0025] a biological sign collecting module, electrically connected with the control module, for collecting pulse and breath data of a user;

[0026] a posture detecting module, electrically connected with the control module, for collecting sitting posture data of the user;

[0027] a seat module, electrically connected with the control module, for adjusting the posture of the seat module according to the instruction of the control module;

[0028] The control module simultaneously collects data of the pulse collection module and the posture detection module, and dynamically adjusts the posture of the user by the method as described above.

[0029] The seat module comprises:

[0030] A seat body;

[0031] A detection assembly arranged on the seat body and configured to collect relative position data between the user and the seat body;

[0032] A driving assembly arranged on the seat body and configured to adjust the seat body according to an instruction of the control module;

[0033] The seat body comprises:

[0034] A support assembly;

[0035] A seat surface arranged on one end of the support assembly away from the ground;

[0036] A seat back connected to one side of the seat surface;

[0037] The detection assembly is arranged below the seat surface and configured to collect the relative position data;

[0038] The driving assembly is arranged on one side of the support assembly close to the seat surface and configured to change a shape of the seat surface and / or an angle between the seat surface and the seat back according to the sitting posture of the user.

[0039] The seat surface comprises:

[0040] At least two connecting bodies;

[0041] A connecting mechanism arranged between adjacent connecting bodies and configured to movably connect the adjacent connecting bodies;

[0042] The connecting bodies are arranged in a transverse manner, and each connecting body is provided with a detection assembly;

[0043] The driving assembly is arranged below the connecting bodies and configured to adjust relative angles between the connecting bodies.

[0044] An electronic device for adjusting a sitting posture based on WifiSensing, comprising:

[0045] A storage medium configured to store a computer program;

[0046] A processing unit in data exchange with the storage medium, for performing the steps of the WifiSensing-based sitting posture adjustment method as described above when adjusting the sitting posture by executing the computer program via the processing unit.

[0047] A readable storage medium having a computer program stored therein; the computer program, when executed, performs the steps of the WifiSensing-based sitting posture adjustment method as described above.

[0048] The present application has at least the following beneficial effects:

[0049] The method provided by the present application first collects the sitting posture data of the user according to the pulse frequency and the breathing frequency of the user; then compares the sitting posture data with the standard sitting posture data to obtain a comparison result; and finally adjusts the angle of the seat used by the user according to the comparison result to ensure that the sitting posture of the user conforms to the standard sitting posture; the method provided by the present application determines the specific use scenario of the user through the pulse frequency and the breathing frequency, and then adjusts the angle of the seat surface in segments, so that the user can consciously ensure the standard sitting posture or approach the standard sitting posture when engaging in learning.

[0050] The system provided by the present application collects the pulse and breathing data of the user through the biological sign collection module to determine that the user enters a learning state; then collects the sitting posture data of the user through the posture detection module; and finally adjusts the posture of the sitting device module to force the user to consciously maintain the standard sitting posture; the system provided by the present application controls the seat surface in the sitting device module in segments according to the relative position of the user, can adjust the bad posture of the user, and optimizes the sitting posture of the user; and has the advantages of simple structure and good adjustment effect. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0052] Figure 1 The flowchart of the method provided by the present application;

[0053] Figure 2 The system block diagram of the system provided by the present application; Figure 1 The flow of collecting the sitting posture data in the flow;

[0054] Figure 3 The system block diagram of the system provided by the present application;

[0055] Figure 4 For Figure 3 The structural schematic diagram of the seat module in the system;

[0056] Figure 5 For Figure 4 The structural schematic diagram of the seat surface in the system;

[0057] Figure 6 For the non-standard sitting posture in specific use;

[0058] Figure 7 For the non-standard sitting posture in specific use; Figure 6 For the non-standard sitting posture in specific use;

[0059] Figure 8 For the non-standard sitting posture in specific use;

[0060] In Figures 1-5 In

[0061] 100. Control module; 200. Biological sign acquisition module; 300. Posture detection module; 400. Seat module; 401. Seat body; 402. Detection assembly; 403. Driving assembly; 4011. Support assembly; 4012. Seat surface; 4013. Seat back; 40121. Connecting body; 40122. Connecting mechanism; 40123. Flexible wrapping surface;

[0062] In Figures 6-8 In, the thicker curve represents the lateral curve of the human body sitting on the seat surface; wherein, the C section is the trunk curve section; the D section is the hip curve section; the F is the thigh curve section; and the E is the calf curve section. DETAILED DESCRIPTION

[0063] Those skilled in the art can understand that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be changed to be located in one or more devices different from the implementation scenario. The modules of the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0064] The existing learning table also generally adopts the overall adjustment mode, such as adjusting the overall height and slope of the chair, or adjusting the angle between the chair back and the chair surface in a split manner; however, due to the uncertainty of the relative position of the user on the chair surface, the overall adjustment of the angle between the chair surface and the chair back often does not have good effect

[0065] In order to solve the above technical problems, the present application provides an embodiment as follows:

[0066] Specific implementation I:

[0067] Specifically, the technical scheme is as follows:

[0068] As Figure 1 A WifiSensing-based sitting posture adjustment method, comprising: periodically collecting sitting posture data of a user after the user enters a monitoring stage, such as collecting once every 10 minutes; comparing the sitting posture data with standard sitting posture data to obtain a comparison result; and adjusting an angle of a chair used by the user according to the comparison result in a segmented manner, so that the user actively adjusts the sitting posture until the standard sitting posture is met.

[0069] In this embodiment, instead of reminding the user by alarm, the chair is segmented after entering the monitoring stage, and the angle of the chair is adjusted segment by segment, so that the user actively adjusts the sitting posture, thereby playing a role in adjusting the sitting posture without disturbing the user; and the user is prevented from being mistakenly reminded in a non-learning state, such as lowering the head to think.

[0070] In this embodiment, as Figure 2 , the user enters the monitoring stage, and the sitting posture data of the user is periodically collected, which includes: collecting the pulse frequency and the breathing frequency of the user; confirming that the user enters the monitoring stage when the pulse frequency of the user rises and the breathing frequency is stable; and collecting the sitting posture data of the user after the user enters the monitoring stage, including: the angle between the chest and the legs of the user and the distance between the chest and the table top;

[0071] The pulse frequency and the breathing frequency described above can be obtained by WifiSensing under the premise of starting CSI, and since it is prior art, the principle will not be described herein. After obtaining the pulse frequency and the breathing frequency, the pulse frequency and the breathing frequency in a period are compared with the pulse frequency and the breathing frequency after N periods, such as the pulse frequency of the user rising and the breathing frequency being stable, indicating that the user is deeply engaged in thinking; at this time, the monitoring stage described in this embodiment is entered; and the detection of the pulse frequency and the breathing frequency as described above is continuously performed, such as the user looking out the window and resting, at this time, the breathing frequency is stable and the pulse frequency is stable, which means that the monitoring stage is exited, thereby achieving the purpose of preventing false detection.

[0072] In the "comparing the sitting posture data with the standard sitting posture data to obtain a comparison result", the angle between the user's chest and legs and the distance between the chest and the table top can be collected by the millimeter wave radar; the angle between the user's chest and legs and the distance between the chest and the table top are compared with the angle between the chest and legs and the distance between the chest and the table top in the standard sitting posture data respectively to obtain the angle difference between the chest and legs and the distance difference between the chest and the table top; in the specific implementation, the corresponding threshold value can be set according to the above-mentioned angle difference and distance difference, and when the threshold value is exceeded, it is considered that the sitting posture is incorrect.

[0073] In the prior art, the angle of the chair is generally adjusted as a whole, and in the embodiment, the angle of the seat used by the user is adjusted according to the comparison result, including: the seat surface is divided into a plurality of regions, preferably a plurality of regions arranged horizontally; the relative position of the user on the seat surface is learned according to the force of each region; according to the relative position, the region closest to the seat back is taken as the reference region; the region adjacent to the reference region and away from the seat back is taken as the adjustment region; the distance between the adjustment region and the seat back is continuously adjusted, compared with the above-mentioned threshold value, until the sitting posture of the user tends to be the standard sitting posture.

[0074] In the embodiment, by adjusting the height of the adjustment region, the user's back is unconsciously close to the seat back, and after the back is close to the seat back; at the same time, if the user sits too far forward, the angle between the front chest and the legs will be too large, forming an uncomfortable sitting posture; at this time, the user will consciously adjust the sitting posture, so that the angle between the front chest and the legs and the distance between the front chest and the table top gradually become reasonable, and the sitting posture is naturally adjusted; finally, under the premise that the user's sitting posture is reasonable, each part of the seat is reset, and the next round of detection begins; and the technical solution in the embodiment does not passively adjust the user's sitting posture by using a voice prompt, but actively adjusts the sitting posture, which can not affect the user's thinking and improve the concentration.

[0075] Specific embodiment II:

[0076] The application also provides an embodiment:

[0077] As Figure 3The application discloses a WifiSensing-based sitting posture adjusting system, which comprises a control module 100, a biological sign collecting module 200, a posture detecting module 300 and a seat module 400; wherein the biological sign collecting module 200, such as a WIFI module, is electrically connected with the control module 100 and is used for collecting pulse and breathing data of a user; the posture detecting module 300, such as a millimeter wave radar, is electrically connected with the control module 100 and is used for collecting sitting posture data of the user; the seat module 400 is electrically connected with the control module 100 and is used for adjusting the posture of the seat module 400 according to the instruction of the control module 100; the control module 100 simultaneously collects the data of the pulse collecting module 200 and the posture detecting module 300 and is used for dynamically adjusting the posture of the user by the method as described in the specific embodiment I.

[0078] Specifically, as shown in the specific embodiment I, Figure 4 The seat module 400 comprises a seat body 401, a detecting assembly 402 and a driving assembly 403; wherein the detecting assembly 402, such as a pressure sensor, is arranged on the seat body 401 and is used for collecting relative position data between the user and the seat body 401; the driving assembly 403 is arranged on the seat body 401 and is used for adjusting the seat body 401 according to the instruction of the control module 100.

[0079] Specifically, as shown in the specific embodiment I, Figure 5 The seat body 401 comprises a supporting assembly 4011, a seat surface 4012 and a seat back 4013; wherein the seat surface 4012 is arranged on the end of the supporting assembly 4011, such as a chair leg, which is far away from the ground; the seat back 4013 is connected with one side of the seat surface 4012; the detecting assembly 402 is arranged below the seat surface 4012 and is used for collecting the relative position data; the driving assembly 403 is arranged on the side of the supporting assembly 4011 which is close to the seat surface 4012 and is used for changing the shape of the seat surface 4012 and / or the angle between the seat surface 4012 and the seat back 4013 according to the sitting posture of the user;

[0080] Preferably, the seating surface 4012 includes: four connecting bodies 40121 and a connecting mechanism 40122; the connecting mechanism 40122 is disposed between adjacent connecting bodies 40121 for enabling a movable connection between adjacent connecting bodies 40121; the connecting bodies 40121 are arranged laterally, and each connecting body 40121 is provided with a detection component 402; a driving component 403 is disposed below the connecting bodies 40121 for adjusting the relative angle between the connecting bodies 40121; the seating surface 4012 may further include a flexible wrapping surface 4. 0123, which extends with the movement of the connecting body 40121 and has a certain thickness to ensure comfort and breathability during use; at the same time, the connecting mechanism 40122 can be a hinge connection, so that when one of the connecting bodies 40121 rises, the adjacent connecting bodies 40121 will rise together to form a continuous arc-shaped seating surface 4012; preferably, the drive component 403 can be an airbag or other height-adjustable component, and its lifting and lowering is controlled by the control module 100; in actual production, silent components can be selected to prevent disturbing the user.

[0081] After the user uses the seating module 400, the control module 100 acquires the data collected by the detection component 402; upon confirming that a user has sat down, it begins to collect the user's pulse rate and respiratory rate. Since the user can maintain an ideal sitting posture when first sitting down, in this embodiment, the monitoring phase begins once the user is engaged in studying or working. First, as... Figure 6 The system uses detection component 402 to obtain the edge of the user's position on the seat surface, such as the connector 40121 corresponding to point A; then, it compares the sitting posture data with standard sitting posture data to obtain the comparison result; based on the comparison result, it adjusts the lifting height of the connector 40121 corresponding to point B, such as... Figure 7 At this point, no further reminders will be used, so as not to disturb the user. Simultaneously, as the connecting body 40121 corresponding to point B is raised, the distance between the user's legs and chest is gradually shortened. The improper sitting posture begins to feel uncomfortable, and the user will consciously and actively move their buttocks towards the chair back, widening the distance between their legs and chest, approaching a standard sitting posture. Figure 8 When the user's sitting posture approaches the standard sitting posture, the threshold in Specific Implementation I is met, and each connector 40121 is reset, starting a new round of monitoring.

[0082] The present invention also provides an embodiment:

[0083] An electronic device for adjusting a sitting posture based on WifiSensing, comprising: a storage medium and a processing unit; wherein the storage medium is configured to store a computer program; the processing unit is configured to exchange data with the storage medium, and execute the computer program by the processing unit to perform the steps of the method for adjusting a sitting posture based on WifiSensing as described in Embodiment I when adjusting a sitting posture.

[0084] The processing unit can perform various appropriate actions and processes according to the program stored in the storage medium. The electronic device further comprises an input part including a keyboard, a mouse, etc., and an output part including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc. In particular, the electronic device according to the embodiments of the present disclosure can perform the processes as described in any one of Figure 1 The processes as described in any one of the embodiments can be implemented as a computer software program.

[0085] The present disclosure also provides an embodiment of:

[0086] A readable storage medium; the readable storage medium stores a computer program; the computer program performs the steps of the method for adjusting a sitting posture based on WifiSensing as described in Embodiment I when running.

[0087] The present disclosure provides an embodiment of a computer program product comprising a computer program carried on a computer readable medium, the computer program comprising program code for performing the method shown in any one of the flowcharts as described in Figure 1 The computer program can be downloaded and installed from a network. When the computer program is executed by a CPU, the functions defined in the system of the present disclosure are performed.

[0088] In the present disclosure, the computer readable storage medium can be any tangible medium that contains or stores a program, which can be used by or in connection with an instruction execution system, apparatus or device. In the present disclosure, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries the computer readable program code. Such a propagated data signal can take various forms, including but not limited to electro-magnetic, optical or any suitable combination thereof. The computer readable signal medium can also be any computer readable medium that can send, propagate or transfer a program for use by or in connection with an instruction execution system, apparatus or device. The program code contained in the computer readable medium can be transmitted using any suitable medium, including but not limited to wireless, wire line, optical cable, RF, etc., or any suitable combination thereof.

[0089] The above disclosed are only several specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be thought of by those skilled in the art shall fall within the protection scope of the present application. The above application numbers are only for description, and do not represent the advantages and disadvantages of the implementation scenarios.

Claims

1. A method for adjusting sitting posture based on WifiSensing, characterized in that, The method comprises the following steps: After the user enters the monitoring stage, periodically collect the user's sitting posture data; Compare the sitting posture data with the standard sitting posture data to obtain a comparison result; According to the comparison result, adjust the angle of the seat used by the user in a segmented manner, so that the user actively adjusts the sitting posture until it conforms to the standard sitting posture; According to the comparison result, adjust the angle of the seat used by the user in a segmented manner, which comprises: Divide the seat surface into multiple areas in the transverse direction; According to the force of each area, know the relative position of the user on the seat surface; According to the relative position, take one area closest to the seat back as the reference area; Take the area adjacent to the reference area and away from the seat back as the adjustment area; Adjust the angle between the adjustment area and the seat back, so that the user's sitting posture tends to be a standard sitting posture.

2. The method of claim 1, wherein the method further comprises: The user enters the monitoring stage, and the user's sitting posture data is periodically collected, which comprises: Collect the pulse frequency and respiration frequency of the user; When the pulse frequency of the user rises and the respiration frequency is stable, it is determined that the user enters the monitoring stage; After the user enters the monitoring stage, the user's sitting posture data is collected, which comprises the angle between the user's chest and legs and the distance between the chest and the table surface. 3.The WifiSensing-based sitting posture adjustment method according to claim 1, characterized in that, Compare the sitting posture data with the standard sitting posture data to obtain a comparison result, which comprises: Compare the angle between the user's chest and legs and the distance between the chest and the table surface in the sitting posture data with the angle between the chest and legs and the distance between the chest and the table surface in the standard sitting posture data respectively to obtain the angle difference between the chest and legs and the distance difference between the chest and the table surface as the comparison result.

4. A sitting posture adjustment system based on WifiSensing, characterized in that, The method comprises: A control module; A biological sign collection module electrically connected to the control module, used to collect the pulse and respiration data of the user; A posture detection module electrically connected to the control module, used to collect the sitting posture data of the user; A seat module electrically connected to the control module, used to adjust the posture of the seat module according to the instruction of the control module; The control module simultaneously collects the data of the biological sign collection module and the posture detection module, and is used to dynamically adjust the posture of the user through the WifiSensing-based sitting posture adjustment method according to any one of claims 1-3.

5. The system of claim 4, wherein, The seat module comprises: A seat body; A detection assembly arranged on the seat body, used to collect the relative position data between the user and the seat body; A driving assembly arranged on the seat body, used to adjust the seat body according to the instruction of the control module; The control module collects the relative position data.

6. The system according to claim 5, wherein, The seat body comprises: A support assembly; A seat surface arranged on one end of the support assembly away from the ground; A seat back connected to one side of the seat surface; The detection assembly is arranged below the seat surface and is used to collect the relative position data; The driving assembly is arranged on one side of the supporting assembly close to the seat surface, and is used to change the shape of the seat surface and / or the angle between the seat surface and the seat back according to the sitting posture of the user.

7. The system according to claim 6, wherein, The seat surface comprises: at least two connecting bodies; a connecting mechanism arranged between adjacent connecting bodies, and used to movably connect the adjacent connecting bodies; The connecting bodies are arranged in transverse rows, and each connecting body is provided with a detection assembly; The driving assembly is arranged below the connecting bodies, and is used to adjust the relative angle between the connecting bodies. 8.An electronic device for adjusting a sitting posture based on Wifi sensing, comprising: It comprises: a storage medium for storing a computer program; a processing unit in data exchange with the storage medium, and used to execute the computer program through the processing unit to perform the steps of the WifiSensing-based sitting posture adjustment method according to any one of claims 1-3 when adjusting the sitting posture.

9. A readable storage medium, characterized in that: the readable storage medium stores a computer program; the computer program is executed to perform the steps of the WifiSensing-based sitting posture adjustment method according to any one of claims 1-3 when running.

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