982 results about "Sitting posture" patented technology

The invention provides a physiological mechanism driving and data fusion method and system for sitting posture human body modeling, and relates to the technical field of digital twinning and biomechanics crossing. The method comprises the following steps: mapping human body macroscopic parameters into biomechanical attribute parameters; generating a basic three-dimensional human body grid based on the human body macroscopic parameters; generating a deformed three-dimensional human body grid in combination with the basic three-dimensional human body grid and the human body macroscopic parameters; solving an optimal attitude based on the vehicle geometric parameters, the task scene identifier and the biomechanical attribute parameters; finally, the deformed three-dimensional human body grid and the optimal posture are integrated, the high-fidelity sitting posture digital twinborn body is generated, end-to-end automatic modeling from macroscopic parameters to the digital twinborn body is achieved, and the core problems that the form and the posture are not matched, crowd coverage is insufficient and task adaptability is poor are solved.

A deck chair with a seat has two opposite sides and two handrails, each handrail being arranged on one of the two opposite sides of the seat; a back arranged behind the seat and located between the two handrails; a footrest arranged in front of the seat and lower than a height of the seat; wherein, the back is rotatable relative to the seat, and the footrest is movable and is capable of extending back and forth relative to the seat. Various sitting postures and lying postures can be realized by adjusting the footrest and the back, thereby satisfying various needs and greatly expanding applicability.

The present application relates to the field of medical devices, and provides a back plate adjustable exoskeleton, comprising: a column structure and a control module, the column structure is slidably connected with a back plate mechanism, and a lower limb exoskeleton connected with the back plate mechanism, and the back plate mechanism is provided with a back plate which can move up and down relative to the back plate mechanism; further comprising: a binding device arranged on the lower limb exoskeleton and a foot bottom exoskeleton, the foot bottom exoskeleton is provided with a pressure sensor. When the human body wears the exoskeleton and changes from a sitting posture to a standing posture, the back plate mechanism adjusts the back plate mechanism along the column structure to the height matched with the user according to different body shapes of the user; and when the user changes the posture in the walking process in the standing posture, the foot bottom exoskeleton detects the change of the foot bottom pressure, so that the control module can control the up and down movement of the back plate relative to the back plate mechanism according to the foot bottom pressure to adjust the human body posture.

The invention provides a sitting posture detection method and equipment for a segmented seat and a storage medium, and relates to the technical field of sitting posture detection. Comprising the following steps that S1, a seat is provided, and the seat comprises a seat face and a seat back; s2, dividing the chair surface into a plurality of subareas; s3, detecting the pressure of the chair back and the pressure of the chair surface in each subarea; s4, whether the user is in an upright sitting posture or a backrest sitting posture is distinguished according to the chair back pressure; s5, in the upright sitting posture, analyzing whether the sitting posture of the user inclines left and right or forwards or not according to the chair surface pressure by adopting a first strategy; under the backrest sitting posture, a second strategy is adopted to jointly analyze whether the sitting posture of the user is inclined leftwards and rightwards or not according to the chair surface pressure and the chair back pressure; and S6, when the sitting posture is judged to incline leftwards and rightwards and / or forwards, giving an alarm. According to the application, the seat pressure in different subareas is analyzed, and whether a user on the seat tilts left and right or forwards can be judged.

The invention belongs to the technical field of intelligent scooters, provides a dynamic supporting type self-adaptive scooter based on artificial intelligence, and innovatively solves the defects of an existing scooter in the conversion process of a sitting posture and a standing posture by combining an intelligent AI model, a 360-degree somatosensory camera, sensor data and an electroactive polymer supporting system. Through the self-adaptive adjusting function of the AI model, the system can accurately carry out dynamic supporting adjustment in real time according to the posture, pressure and body shape of the user, and comfort, stability and health of each stage are ensured.

The invention discloses a spine form prediction method and device for driving digital human model construction, and relates to the field of driving digital human model construction, and the method comprises the steps: obtaining first scanning data when a driver keeps a sitting posture on a seat with a hole in a backrest for three-dimensional scanning; four-limb marking points and a body marking point are arranged on the body of the driver; acquiring second scanning data when the driver keeps the standing posture to perform three-dimensional scanning; acquiring third scanning data when the driver keeps the sitting posture on the driving seat to perform three-dimensional scanning; according to the first scanning data, the second scanning data and the third scanning data, a geometrical shape alignment technology and a coordinate system conversion technology are applied, and the spine form of the driver when the driver keeps the sitting posture on the driving seat is predicted; the spine form can be accurately predicted, and the problem that the spine form cannot be accurately measured due to shielding of a driving seat is solved.

The utility model discloses a backrest assembly which comprises a backrest, a linkage support, a first supporting component and a second supporting component, and the linkage support is located on one side of the backrest and rotationally connected with a base of a seat. One end of the first supporting component is movably connected with the backrest, and the other end of the first supporting component is rotationally connected with the linkage bracket; one end of the second supporting member is rotatably connected with the first supporting member or the backrest, and the other end of the second supporting member is connected with the base. According to the backrest assembly of the seat, when the backrest is subjected to pressure towards the rear side of the seat, the backrest can move relative to the first supporting component, the linkage support and / or the base through movable connection of the first supporting component and the backrest, so that when a user uses the seat, and the back and / or the waist of the user exert force on the backrest to adjust the sitting posture, the user can conveniently adjust the sitting posture. The backrest can adaptively move along with adjustment of the sitting posture of the user so as to be better attached to the back and / or the waist of the user, better supporting is achieved, and the use comfort of the seat is improved.

There is provided a dynamic and proactive system for supporting sitting while detecting and changing sitting postures of a user and method of operation thereof. The system including a frame, a plurality of supports, each configured to support a different body part, and a plurality of joints each configured to move independently of or together with any other of the joints, each of the supports is connected to the frame via a corresponding joint, at least one of the joints is a two dimensional joint which enables a change in angle between the frame and a corresponding support. Each one of the plurality of supports is configured to move with respect to the frame or to another support, thereby enabling any changes in sitting postures of the user. The system comprises sensors, which based on their readings, the system detects user postures and suggests or creates posture changes.

The invention discloses a real-time sitting posture detection method based on a Kalman filtering fusion algorithm. The method comprises the steps that S1, a user sitting posture video stream is collected in real time through a camera; s2, using a MediaPipe attitude estimation framework to extract 33 key point coordinates of a human body in the video stream; s3, smoothing the coordinates of the key points by using a Kalman filtering algorithm to suppress jitter of the key points; s4, calculating a torso bending angle and a cervical vertebra forward inclination angle based on the filtered key point coordinates; s5, jointly judging whether the user is in a humpback state or not according to a preset threshold value, and judging that the user is in a humpback state if any angle exceeds the threshold value; and S6, feeding back the sitting posture state in real time through the interactive interface. According to the invention, a dynamic filtering technology is introduced for optimization through a lightweight Medipe attitude estimation algorithm, and the algorithm is deployed to a common embedded device to realize non-contact mobile human body sitting posture monitoring, so that the problems of low comfort, large measurement error and high time delay are effectively solved.

The invention relates to the field of seats, and particularly discloses a zero-gravity seat linkage framework which comprises a driving assembly, a linkage structure, a cushion structure, a leg supporting structure and a back supporting frame, the cushion structure comprises a movable base and a fixed base, and the driving assembly drives the movable base to slide on the fixed base in a limited mode; the back supporting frame is rotationally connected with the movable base through a back mounting rod, and the linkage structure can achieve overturning of the leg supporting structure and rotation of the back supporting frame in the moving process of the movable base. By arranging the linkage structure, the single driving assembly can drive the leg supporting structure to be unfolded or folded and drive the back supporting piece to be turned over, so that switching between a normal sitting posture and a zero-gravity sitting posture is achieved, the comfort is better, and due to the fact that the leg supporting structure and the back supporting piece act separately, the sitting posture is more comfortable. Therefore, the stretched leg support structure can be matched with backrests with various angles, a more flexible and personalized lying posture is further obtained, the manufacturing cost and the assembling difficulty are remarkably reduced through the overall structure, and the adaptability is high.

The invention discloses a spine health monitoring method and monitoring device of an intelligent seat, a storage medium and the intelligent seat, and relates to the technical field of spine monitoring, and the method comprises the following steps: obtaining sitting posture information and physiological information of a target user; determining a humpback index and a lateral bending index based on the sitting posture information, and determining a fatigue index based on the physiological information; determining a health monitoring grade based on the humpback index, the lateral bending index and the fatigue index; and controlling the air pressure of a motor and / or an air bag of the intelligent seat based on the health monitoring grading result. Therefore, according to the method, the air pressure of the motor and the air bag of the intelligent seat is hierarchically controlled based on the humpback index, the lateral bending index and the fatigue index, dynamic intervention of the sitting posture can be realized, and the accuracy of spine health monitoring is improved.

The embodiment of the invention relates to the technical field of sitting posture detection, in particular to a sitting posture detection method, device, equipment and system and a storage medium. The sitting posture detection method is applied to sitting posture detection equipment, the sitting posture detection equipment is installed on a seat, a preset number of pressure sensors are arranged at preset positions of the seat respectively, and the sitting posture detection method comprises the steps that analog signals collected by the pressure sensors are obtained, the analog signals pass through an amplification circuit, a filtering circuit and other analog circuits, and the analog signals are converted into the sitting posture detection equipment; digital signals used for sitting posture detection and identification are obtained after digital-to-analog conversion processing; determining a current sitting posture feature of the to-be-detected object according to the digital signal; and detecting the current sitting posture characteristics based on a sitting posture detection algorithm, and determining abnormal sitting posture information of the to-be-detected object according to a detection result. According to the method, the accuracy and the cost of sitting posture detection and the use convenience of the user can be considered.

The utility model provides a stretching device and a sofa. The stretching device can be arranged in a reciprocating and switchable manner among a sitting posture state, a leisure state and a lying posture state; when the stretching device is in the sitting posture state, the foot rest piece is retracted below the seat frame, and the minimum distance between the highest point of the backrest cushion and a preset vertical plane is equal to zero; when the stretching device is in a leisure state, the foot rest piece stretches to the front of the seat frame and inclines relative to the horizontal direction, and the distance between the highest point of the backrest cushion and a preset vertical plane is larger than zero; when the stretching device is in the lying posture state, the minimum distance between the highest point of the backrest cushion and the preset vertical plane is equal to zero, and the height of the highest point of the foot rest piece relative to the horizontal installation base plane is larger than that of the highest point of the backrest piece relative to the horizontal installation base plane. The utility model solves the problem that the iron stand floor sofa in the prior art cannot meet the requirements of customers on zero wall-leaning arrangement and zero-gravity comfortable experience of the sofa at the same time.

The invention discloses a cognitive load assessment method based on fusion of behavior characteristics and heart rate variability in a classroom video. According to the method, face and behavior videos of students in a real classroom are collected, behavior characteristics such as eye movement tracks, sitting postures and facial expressions of the students are extracted through a computer vision algorithm, heart rate variability indexes are predicted in combination with a remote photoplethysmography technology, and a time sequence characteristic sequence is formed. And then, a time sequence deep learning model is adopted to carry out joint modeling on the multi-modal time sequence characteristics, and the cognitive load scale level is taken as a supervision signal to construct a classification model to realize cognitive load level prediction. The method has the advantages of non-contact, automation, high adaptability and the like, and can be applied to personalized teaching monitoring and intelligent teaching feedback.

The invention discloses a sitting posture detection method, system, equipment and medium in a virtual learning cabin, and belongs to the technical field of man-machine interaction and health monitoring, and the method comprises the steps: collecting pressure values of hip and thigh areas of a user in the learning cabin in real time, constructing a pressure distribution cloud picture of a learning cabin seat, and extracting pressure health parameters; a depth image and an RGB image of a user are collected in real time at multiple angles, and key skeleton points of a human body are recognized through a skeleton recognition algorithm; performing three-dimensional reconstruction on the identified key skeleton points, constructing a three-dimensional skeleton model of the user, and extracting posture health parameters based on the three-dimensional skeleton model; and carrying out data fusion on the pressure distribution cloud picture, the three-dimensional skeleton model, the pressure health parameters and the posture health parameters, constructing a digital twinborn body, and carrying out user sitting posture state evaluation and early warning based on a preset risk level. According to the invention, multi-source sensing data can be realized, and the sitting posture can be accurately evaluated in real time.

1. The name of this design product: Lumbar support cushion (in the shape of the Chinese character "Fu"). 2. Purpose of this design product: This design product is a lumbar support cushion used to correct sitting posture. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model discloses a wall-leaning-free seat frame and a seat. The zero wall-leaning seat frame comprises a base; the movable frame is movably assembled on the base; the first driving mechanism is connected to the movable frame and used for driving the movable frame to move forwards or backwards; the stretching mechanism is assembled on the movable frame and can be switched among a sitting posture state, a TV posture state and a lying posture state. According to the utility model, the movable frame is driven by the first driver to move forwards or backwards, so that the movable frame can drive the stretching mechanism to move forwards or backwards, and therefore, the stretching mechanism can be kept against a wall in any state, interference between the stretching mechanism and the outside is effectively avoided, and the stretching mechanism can be prevented from being damaged. Moreover, the indoor space can be fully utilized, and better use experience is brought to the user.

The invention discloses a self-adaptive waist tracking method, a computer readable storage medium and an intelligent seat, the self-adaptive waist tracking method is used for the intelligent seat, the intelligent seat is provided with a pressure sensor array and a waist support adjusting mechanism, and the method comprises the following steps: acquiring real-time pressure data of a current user collected by the pressure sensor array; extracting pressure characteristic parameters according to the real-time pressure data, and determining the body type category of the current user according to the pressure characteristic parameters by using a pre-trained body type recognition model; determining a current sitting posture type and an initial pressure threshold value of the current user according to the real-time pressure data by utilizing a pre-trained sitting posture recognition model; determining a target pressure threshold value according to the real-time pressure data, the body type category and the initial pressure threshold value; according to the target pressure threshold value, supporting parameters of a waist support adjusting mechanism are adjusted, so that the waist support is matched with the waist state of the user. According to the self-adaptive waist-following method, personalized waist-following adaptation of the user in multiple scenes is realized.

The invention provides a stretching device and a sofa. The stretching device can be arranged in a reciprocating and switchable manner among a sitting posture state, a leisure state and a lying posture state; when the stretching device is in the sitting posture state, the foot rest piece is retracted below the seat frame, and the minimum distance between the highest point of the backrest cushion and a preset vertical plane is equal to zero; when the stretching device is in a leisure state, the foot rest piece stretches to the front of the seat frame and inclines relative to the horizontal direction, and the distance between the highest point of the backrest cushion and a preset vertical plane is larger than zero; when the stretching device is in the lying posture state, the minimum distance between the highest point of the backrest cushion and the preset vertical plane is equal to zero, and the height of the highest point of the foot rest piece relative to the horizontal installation base plane is larger than that of the highest point of the backrest piece relative to the horizontal installation base plane. The invention solves the problem that the iron stand floor sofa in the prior art cannot meet the requirements of customers on zero wall-leaning arrangement and zero-gravity comfortable experience of the sofa at the same time.

The invention relates to the field of furniture control, and discloses an intelligent massage armchair control method based on posture recognition, comprising a multi-modal sensing fusion module which collects vision, pressure and millimeter-wave radar data through a sensor, constructs a three-dimensional body contour value of a user, and sends the three-dimensional body contour value to the multi-modal sensing fusion module; data are transmitted to an individual feature recording module based on the collected vision, pressure and millimeter wave radar data; and the individual feature analysis module is used for receiving the information acquired by the multi-modal sensing fusion module, judging the body shape of the user by using a K-means clustering algorithm according to the information, and then selecting a preset scheme according to the body shape information of the user to carry out matching judgment on the sitting posture of the current user. According to the invention, data of the infrared camera, the pressure sensor and the millimeter wave radar are integrated through the multi-modal sensing fusion module, multi-dimensional sensing of a visual contour, pressure distribution and a skeleton structure is realized, and the problem of key feature point extraction deviation caused by body type difference of a single camera is effectively solved.

To provide a foldable chair having high safety and excellent design.SOLUTION: A foldable chair 1 includes: a pair of right and left front leg parts 10; a front leg connection part 20 for connecting the front leg parts 10 at both of right and left end parts; a pair of right and left rear leg parts 30; and a seat part 50 on which a user sits. A rear side 50B of the seat part 50 is rotatable around a rotation axis P1 with respect to the rear leg parts 30. The foldable chair 1 is changeable from a sitting posture to sit on the seat part 50 to a standing posture of the seat part 50 by rotating a front side of the seat part 50 upward. The front leg parts 10 and the rear leg parts 30 are rotatably connected around a rotation axis O1 above the seat part 50 in the state of the sitting posture. The front leg connection part 20 supports the seat part 50 in the state of the sitting posture. The front leg connection part 20 and a lower side connection part 50a1 located behind the front leg connection part 20 and also in front of the rotation axis P1 on a lower surface 50a of the seat part 50 are connected to be relatively movable via a link mechanism 60.SELECTED DRAWING: Figure 3

The invention belongs to the technical field of collision safety, and discloses an intelligent cabin non-standard sitting posture passenger-oriented damage severity prediction method and system, and the method comprises the steps: collecting a real traffic accident case, carrying out the simulation working condition reconstruction, and obtaining a high-risk working condition data set; identifying accident morphological characteristics and passenger injury severity of the high-risk working condition data set to obtain a standard attitude data set under the high-risk working condition; the collision parameters and the passenger posture parameters are considered, a simulation data set with the collision parameters coupled with the non-standard sitting posture parameters is obtained, the standard posture data set and the simulation data set are fused, and a high-risk working condition global sitting posture database is obtained; and training the neural network by using the high-risk working condition global sitting posture database to obtain a trained prediction model, and predicting the severity of the passenger injury by using the trained prediction model. Accurate safety evaluation of the non-standard sitting posture of the intelligent cabin is realized, and passenger injury severity prediction of the non-standard sitting posture of the intelligent cabin is completed through a machine learning algorithm.

A body-encompassing blanket includes a lower panel configured to cover the front of a user's lower body, an upper front panel divided into two parts forming sleeves, and a back panel extending from a waist opening toward an upper back region. A rear leg panel is attached to the lower panel to define a pocket that encloses the lower legs and feet of the user. The waist opening facilitates entry and exit and includes adjustable closure fasteners. Arm openings allow access to the sleeves, and hems and interior seams incorporate clean-finish stitching and overlock reinforcement. The blanket provides warmth, mobility, and a comfortable, non-restrictive fit suitable for seated or reclined use.

The invention relates to the field of medical apparatus and instruments, and provides an exoskeleton with an adjustable backboard, the exoskeleton comprises a column structure and a control module, the column structure is slidably connected with a backboard mechanism and a lower limb exoskeleton connected with the backboard mechanism, and the backboard mechanism is provided with a backboard capable of moving up and down relative to the backboard mechanism; the binding device and the plantar exoskeleton are arranged on the lower limb exoskeleton, and the plantar exoskeleton is provided with a pressure sensor. When a human body wears the exoskeleton and is changed into a standing posture from a sitting posture, the back plate mechanism is adjusted upwards to the height matched with a user along the stand column structure according to different body types of the user; when the user walks in the standing posture state, the posture of the human body changes, at the moment, the plantar exoskeleton detects the change of plantar pressure, and the control module can control the back plate to move up and down relative to the back plate mechanism according to the plantar pressure so as to adjust the posture of the human body.

The invention relates to the technical field of posture recognition, and discloses a human body posture recognition method based on computer vision, which comprises the following steps: acquiring posture video data of a recognized person to obtain image data; key point detection is carried out on the image data to obtain two-dimensional key point coordinates, normalization processing is carried out to obtain a data set, attitude mapping labels are established, different attitude categories are systematically mapped into unique corresponding digital identifiers, and the two-dimensional key point coordinates are converted into a floating point type numerical matrix; adding an attitude mapping label to the floating point type numerical matrix to construct an npz format data file; constructing a lightweight graph convolution sitting posture comparison and recognition initial model, and training and testing to obtain an LGCSPNet operation model; and adopting an LGCSPNet operation model to recognize a human body posture. According to the method provided by the invention, high-efficiency reasoning can be realized while extremely low parameter quantity is maintained, the deployment threshold of edge equipment is remarkably reduced, and a lightweight solution is provided for accurate posture recognition.

The utility model relates to a cervical traction chair which comprises a chair frame, a seat plate, a chest pillow and a head pillow, the chest pillow and the head pillow are installed on the chair frame through a chest pillow adjusting device and a head pillow adjusting device respectively, the head pillow adjusting device comprises a head pillow bracket, a head pulling block is arranged on the head pillow bracket in a sliding mode, a neck pulling shaft is arranged above the top end of the head pulling block, and the neck pulling shaft is connected with the seat plate. A pull rope rod is arranged below the bottom end of the headrest bracket, a pull rope shaft is rotatably arranged at the top end of the headrest bracket, and a containing cavity used for containing the face of a user is formed in the headrest. When the cervical traction chair is used for carrying out cervical traction on a patient, the patient sits on the seat plate and lies on the chest pillow, the face of the patient is placed in the containing cavity, the comfort degree of semi-prostrate body position traction is higher than that of sitting vertical body traction, and the patient can insist in long-term traction; and the problem that the back of the patient is unconsciously bent during traction during sitting traction is solved, and the traction effect is good.

The multifunctional sitting posture correcting device comprises a desk and a seat, a first clamping groove is formed in the top of the desk, a sitting posture correcting plate is installed on the inner wall of the first clamping groove in a matched and clamped mode, a sitting posture correcting assembly is fixedly installed on the outer wall of the top of the sitting posture correcting plate, and the sitting posture correcting assembly comprises a telescopic pipe. The top of the telescopic pipe is rotatably connected with a clamping support used for limiting the shoulders of a student, and the top of the sitting posture correcting plate is rotatably connected with an overturning plate through a shaft pin. The sitting posture correcting plate is installed on the surface of the desk, and the clamping support capable of telescopically adjusting the height is installed on the surface of the sitting posture correcting plate; the sitting posture correcting device is simple in structure and is matched with the back support for use, so that front-back synchronous sitting posture correction is facilitated, meanwhile, the phenomenon of fatigue caused by long-time sitting can be prevented, the protection effect on the body of a student is improved, and the safety and practicability of equipment use are improved.

1. The name of the design product: sitting chair (silicone). 2. The use of the design product: sitting chair for people to sit, correct sitting posture and support waist. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model provides a chair seat which comprises a seat frame and an air bag assembly arranged in the seat frame, and mesh cloth tightened at the initial height position is arranged at the open position of the upper end of the seat frame. The air bag assembly comprises a plurality of air bags which are stacked up and down, and the air bags can be inflated to expand and can also be deflated to contract; the multiple air bags stacked up and down are divided into a lifting air bag located at the topmost end and used for acting on the screen cloth and one or more jacking air bags located at the lower end of the lifting air bag. When a seated person has a rest, the net cloth can elastically support the seated person, and when the seated person works, the lifting air bag and the jacking air bag expand and form double lifting force on the net cloth, so that the pelvic angle is changed, the pressure of the spine is greatly reduced, meanwhile, the sitting posture is corrected, the seated person is kept in an upright posture, and the risk of spine dislocation or lumbar muscle strain of the seated person is reduced.

The utility model provides a novel waist rest assembly. The novel waist rest assembly comprises a waist rest supporting frame with the hollow middle. The mesh cloth and the adjusting air bag assembly are arranged at the hollowed-out position of the waist rest supporting frame, the adjusting air bag assembly which expands or contracts through inflation and deflation is arranged in the waist rest supporting frame, the mesh cloth under the action of the adjusting air bag assembly can be sunken inwards or ejected forwards according to the requirements of a user, the structure is simple, operation is convenient, and practicability is high. Therefore, the waist rest assembly has the functions of comfortable sitting and sitting posture correction.