700 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.

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 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.

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 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.

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.

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 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 relates to the technical field of waist stools, and discloses an adjustable waist stool strap structure for infants, which comprises a protective plate, a stool is mounted at the upper part of the front side of the protective plate, a protective strap is connected to the front side of the top of the stool, shoulder straps are mounted on the outer sides of connecting straps, first elastic bands are sewed at the rear parts of the shoulder straps, and a second elastic band is sewed at the rear parts of the first elastic bands. First buckles are mounted at the inner ends of the first elastic bands; the second elastic bands are sewn on the front side and the rear side of the strap, buttons are arranged on the front side and the rear side of the protecting band and the inner sides of the second elastic bands, a first binding band is connected to the lower portion of the left side of the strap, and a second binding band is connected to the lower portion of the right side of the strap. According to the adjustable waist stool strap structure for the infant, the second elastic band is separated from the button, so that the two legs of the infant can be changed into a free moving state, blood circulation of the legs can be improved, and the situation that the blood vessels on the inner sides of the thighs are possibly pressed by a diverging sitting posture is avoided.

1. The name of the design product: chair for correcting sitting posture. 2. The use of the design product: for correcting sitting posture. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

The invention discloses a massage adaptive control method and device based on sitting posture induction, and the method comprises the steps: obtaining distance induction information, judging whether the distance induction information meets a gravity detection condition or not, and obtaining gravity induction information and analyzing the gravity induction information to obtain gravity analysis information if the distance induction information meets the gravity detection condition; correspondingly generating first gear control information corresponding to the first massage assembly according to the gravity analysis information, and sending the first gear control information to the first massage assembly; and judging whether the gravity sensing information meets a starting condition or not, and if the gravity sensing information meets the starting condition, generating second gear control information corresponding to the second massage assembly according to the gravity center analysis information and sending the second gear control information to the second massage assembly. According to the massage adaptive control method, the gravity sensing information when the user sits down can be correspondingly analyzed to obtain the gravity analysis information, the two massage assemblies are controlled according to the gravity analysis information, and the massage assemblies are adaptively controlled according to the sitting posture and gravity center shift of the user; the control flexibility of the massage assembly is greatly improved, and the massage effect is improved.

1. The name of the design product: posture correcting cushion. 2. The use of the design product: for correcting sitting posture. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

This application belongs to the field of ergonomics, and specifically relates to a method for analyzing physiological fatigue in sitting posture based on the fusion of subjective and objective factors. It includes: Step 1, conducting muscle strength tests before and after continuous sitting posture and collecting electromyographic (EMG) signal data; Step 2, extracting EMG signal features from the EMG signal data and obtaining objective fatigue indicators based on these features; Step 3, obtaining subjective fatigue indicators based on a human body zonal subjective fatigue evaluation scale; Step 4, fusing the objective and subjective fatigue indicators to obtain the physiological fatigue state of the human body in sitting posture. This application objectively and accurately reflects the physiological fatigue state through certain physiological parameters of the human body, simultaneously considering the characteristics of physiological parameter indicators and the subjective feelings of the human body. It can solve the problem of accurately evaluating the physiological fatigue state in sitting posture, and has significant and practical engineering application value for scientifically and rationally conducting research on sitting posture design, seating design, and fatigue relief.

1. The name of the design product: posture corrector (anti-humpback). 2. The use of the design product: for correcting sitting posture. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best shows the design points: perspective view 1.

1. The name of the design product: orthopedic chair. 2. The use of the design product: for people to sit and rest, correct sitting posture. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention specifically discloses a golden sight distance sitting posture management method with read-write sitting posture non-inductive behavior intervention, and relates to the technical field of ergonomics. The method comprises the following steps: firstly, selecting a learning table and chair or an office table and chair with centimeter-level accurate height adaptation ability; secondly, according to the height of the user, the table top height, the under-table clearance height, the seat height and the seat depth are accurately matched; after the user sits, the sliding chair is inclined forwards until the distance between the abdomen and the table edge is smaller than one fist and the body is straightened, and braking is triggered; finally, final sitting posture intervention is completed through on-site training of health teachers, personal service guidance, instruction of character labels on tables and chairs, instruction text guidance or reminding of an intelligent human body induction device. According to the golden sight distance sitting posture management method for reading and writing sitting posture non-inductive behavior intervention, the user can be helped to develop a good reading and writing sitting posture habit of the golden sight distance larger than or equal to 33cm in the field, the waist and the back are leaned, the table top is located on the abdomen, and the physical health and the learning efficiency of the user are promoted.

The utility model relates to the technical field of exercise training, in particular to an air resistance type sitting posture kicking trainer. The device comprises a bottom frame, the bottom frame comprises two cross beams arranged in parallel and longitudinal beams connected with the two cross beams, two supporting shafts arranged in parallel are horizontally arranged on the outer side of the longitudinal beam on the left side in a spaced mode, and the front ends and the rear ends of the two supporting shafts are connected with the cross beams on the corresponding sides respectively. And a bottom plate connected with the two cross beams is horizontally arranged on the outer side of the longitudinal beam on the right side. The device is reasonable in structural design and convenient to operate, adopts an air resistance type structure, and enables the swing force to be stable and controllable, so that the injury of training to the lower limbs of an athlete is effectively reduced, the training can be achieved, the bearing capacity of the lower limbs is improved, the athlete can safely train, the athlete can adjust the resistance at any time according to own needs, time and labor are saved, and the training efficiency is improved. The competitive score can be improved, and the problems in the prior art are solved.

The invention discloses a multi-target sitting posture detection method based on improved YOLOv11, and relates to the technical field of target detection and recognition. The method comprises the following steps: S1, configuring parameters used by a training module; s2, customizing a data set class, and packaging feature data and labels of a sitting posture classification task; s3, preprocessing the sitting posture data of the scene of the simulated student in class by using a preprocess module; s4, defining a sitting posture classification model architecture; s5, instantiating the sitting posture classification model architecture; s6, the data are introduced, a train model function is constructed, YOLO model cycle training is carried out, and finally an improved YOLO11 model is obtained; s7, accessing the trained model to a camera, and performing multi-person sitting posture detection by dynamically rotating the camera at the same time; according to the method, the data preprocessing effect of the YOLO model is excellent, and the accuracy of dynamic target detection of the camera is greatly improved; multi-person sitting posture detection can be carried out, and detection scientificity and reliability are improved.

This invention relates to the field of posture recognition technology and provides a deep learning-based, efficient 3D human posture recognition method, comprising the following steps: recording video data; performing 3D posture estimation on all images in the video using BlazePose to extract 3D keypoint coordinates; then performing data augmentation by randomly jittering and mirroring the obtained keypoint coordinates to expand the dataset; constructing a KpointNet model based on a point cloud model; training the KpointNet model to generate a training model; and finally testing the trained model and applying it in practice. This invention can obtain richer spatial information from RGB images, increasing the information dimensionality; the KpointNet model based on a point cloud model improves the inference utilization of the network model and has better accuracy; directly learning from 3D keypoint data results in more efficient data utilization; this invention can efficiently identify human posture categories in 3D, correct poor posture in a timely manner, and prevent potential health risks.

The utility model relates to the technical field of folding chairs, in particular to an armrest folding chair which comprises chair back supports, the opposite sides of the two chair back supports are respectively and fixedly connected with one side of a chair back cross beam, one side of the chair back cross beam is fixedly connected with one side of a chair mesh, one side of each chair back support is movably connected with an armrest through an adjusting bolt, and the other side of each chair back support is fixedly connected with the chair mesh. The bottoms of the chair back supports are movably connected with the tops of the chair back adjusters in a sleeved mode, the bottoms of the chair back adjusters are movably connected with the tops of the seat supports in a lap joint mode, and the opposite sides of the two seat supports are fixedly connected with one side of the chair back beam. The improved armrest folding chair adopts a six-gear adjustment design, can adapt to sitting postures, prone postures and sleeping postures, meets various sitting posture requirements, can be adjusted to a comfortable position capable of supporting arms according to actual requirements of a user, forms a stable triangular structure after being folded and unfolded, and is convenient to use. And the weight of an adult male can be easily born.

1. The name of the design product: chin support of the sitting posture corrector. 2. The use of the design product: the overall appearance is used for correcting the sitting posture, and the part to be protected is used as a chin support to prevent tilting the head. 3. The design points of the design product: in the local shape. 4. The picture or photo that best indicates the design points: front view. 5. Other circumstances that need to be explained: the part covered by the green translucent layer is not required to be protected in this design application, and the part not covered by the green translucent layer is the part to be protected in this design application.

The invention discloses an exoskeleton shoulder joint rotation center position control method oriented to a shoulder-brachial rhythm, and relates to the technical field of upper limb exoskeleton rehabilitation robot control. Inputting the posture information of the big arm of the human body into the shoulder-brachial rhythm mapping model, and calculating the motion angle of the sternoclavicular joint of the human body; inputting the posture information of the big arm of the human body into the exoskeleton kinematics model for inverse kinematics solution by taking the motion angle as a constraint condition of the exoskeleton kinematics model to obtain a joint angle variable of a rotation center of the shoulder joint of the exoskeleton; the joint angle variable serves as a target motion angle, and target control torque is calculated; when the exoskeleton shoulder joint is driven to move and alignment deviation is judged to exist based on the collected second electromyographic signals, the exoskeleton shoulder joint is subjected to compensation adjustment until the alignment deviation is eliminated; the problem of human-machine joint dislocation is solved, the risk of shoulder joint collision is avoided, the human-machine compatibility is enhanced, and the device is suitable for dynamic scenes such as individual difference and sitting posture deviation of patients.

The utility model discloses a sitting body forward flexion trainer, which relates to the technical field of body forward flexion training equipment and comprises a fixing part and pedal parts arranged on two sides of the fixing part, and a handheld part with a plurality of training positions is arranged on the fixing part. According to the utility model, the handheld part with a plurality of training positions is arranged on the fixing part, during training, a person begins to sit, two feet abut against the pedal part, two hands stretch forwards towards the direction of the feet and then hold the handheld part, and the handheld part is arranged on the fixing part to keep a stable position, so that the two hands are kept fixed, and the training effect is improved. The posture of the body is fixed and stretched; after training to a certain degree, the hand-held part at the position farther from the body is held by the hand, so that the training difficulty is increased, and the training effect is gradually improved; the whole structure is simple, the number of components is small, machining is convenient, cost is low, and training is convenient.