3433 results about "Wheelchair" patented technology

The invention discloses a wheelchair storage device which comprises a device fixing rack used for being hung on a wall, a swing connecting frame and a storage frame used for storing and placing a wheelchair, the device fixing rack is provided with a traction device used for controlling the swing connecting frame to swing and move, and the storage frame is connected with the swing connecting frame. The swing connecting frame swings so as to generate height change movement along with the swing movement of the swing connecting frame; wherein the storage frame comprises a bottom frame for bearing a wheelchair and suspension arms arranged on the two sides of the bottom frame; the swing connecting frame comprises a cantilever used for hanging the storage frame and a connecting arm hinged to the device fixing rack, one end of the cantilever is connected with the connecting arm, and the other end of the cantilever is hinged to the suspension arm, so that when the connecting arm is driven by swing of the traction device, the bottom frame is kept in a horizontal arrangement state. By the adoption of the wheelchair, the wheelchair is convenient to store and easy to take and use and does not occupy the ground.

The invention discloses an automobile seat automatic adjusting sliding rail and an automobile seat thereof, and belongs to the technical field of automobile parts. Comprising a static sliding rail, and the static sliding rail comprises a static sliding rail fixing bottom plate, a static sliding rail front side wall and a static sliding rail rear side wall; a movable sliding rail front edge folding groove and a movable sliding rail rear edge folding groove are formed in the movable sliding rail, and the bottoms of the left end and the right end of the movable sliding rail are each provided with a pair of Z-direction gap eliminating idler wheels; the seat basin connecting plate is connected to the upper part of the movable sliding rail; the screw rod is arranged in the static slide rail cavity; the movable sliding rail automatic displacement driving mechanism is matched with the seat basin connecting plate, the movable sliding rail and the screw rod; the device is characterized in that front clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the front edge folding groove of the movable sliding rail respectively, and rear clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the rear edge folding groove of the movable sliding rail respectively; a pair of movable sliding rail guide mechanisms is arranged on the downward side of the middle of the movable sliding rail. The device has the advantages of simplifying the overall structure and facilitating manufacturing and assembling; the all-around excellent anti-backlash effect is embodied; the service life is long.

The invention relates to the technical field of intelligent shared wheelchairs, in particular to an intelligent shared wheelchair control system for accompanying diagnosis, and the system comprises a reservation module which obtains a user reservation request and completes the reservation of an intelligent shared wheelchair; the demand information acquisition module acquires a target department ward of a user; the indoor navigation and state monitoring module is used for acquiring an indoor traffic map of a hospital and monitoring the treatment state of a ward of a target department in real time; the accompanying diagnosis path optimization module takes the accompanying diagnosis navigation path as an optimization target, creates a target department ward accompanying diagnosis knowledge graph based on a hospital indoor traffic map, and creates an accompanying diagnosis navigation path optimization model based on a grey wolf optimization algorithm and the target department ward accompanying diagnosis knowledge graph; optimizing the accompanying diagnosis navigation path through the accompanying diagnosis navigation path optimization model to obtain an optimal accompanying diagnosis navigation path; the intelligent navigation module controls the intelligent shared wheelchair to operate according to the optimal diagnosis accompanying navigation path. The utilization rate of the intelligent shared wheelchair can be improved, and meanwhile the user experience is improved.

The invention provides a remote elderly monitoring method and system based on artificial intelligence, and relates to the technical field of elderly behavior recognition, and the method comprises the steps: firstly obtaining a current image and a physiological monitoring signal of an elderly in a target area; preprocessing the current image and the physiological data to obtain a preprocessed image and the physiological data; performing multi-modal fusion on the preprocessed image and the physiological data based on a fusion algorithm to form fusion data; inputting the fusion data into a trained old people behavior model to obtain a monitoring result; the model is constructed through a walking elderly sample set and a wheelchair elderly sample set. And giving an alarm according to a monitoring result. According to the method, the multi-modal information of the image and the physiological signal is combined, the visual information and the physiological state are comprehensively considered, and the monitoring accuracy and reliability are greatly improved. The complementarity of different source information is effectively utilized by multi-modal fusion, and the behavior recognition capability in a complex scene is enhanced. By considering individual difference information, false alarm and missing alarm can be reduced, and the monitoring effect is improved.

A patient transport apparatus (100, 10) which is configurable in at least three modes of operation, according to specific operational requirements. The apparatus (100, 10) comprises a patient support assembly 12 and at least a first and second wheel arrangement (14, 16). The patient support assembly 12 comprises a main portion 12.1, and a first and second portion (12.2, 12.3) extending from opposite sides of the main portion 12.1. The first and second portions (12.2, 12.3) are independently adjustable relative to the main portion 12.1. The first and second wheel arrangements (14, 16) are independently adjustable relative to the patient support assembly 12. The patient transport apparatus (100, 10) is configurable as a stretcher, as a chair (or wheelchair) and as a stair chair, by relative adjustment of the patient support assembly 12 and the first and second wheel arrangements (14, 16).

The invention relates to an accurate collision-free automatic docking control method which is characterized by comprising the following steps: S1, remote guidance: triggering an automatic docking signal, establishing a three-dimensional semantic map, completing autonomous positioning, planning a docking path, performing real-time obstacle avoidance navigation, and executing safe and stable movement to reach a pre-docking position; s2, posture adjustment: when reaching the pre-docking position, determining the target posture of the target docking object and the posture of the object to be docked, and adjusting the posture of the object to be docked to the pre-docking posture; and S3, short-range docking: based on motion compensation, detecting a motion error, generating a motion correction instruction according to error signal feedback, and realizing collision-free accurate docking. The movement function and the body position changing function of the intelligent wheelchair are achieved through the intelligent wheelchair, smooth and stable switching can be achieved in the changing process of the intelligent wheelchair, and meanwhile the intelligent wheelchair is an indoor power assisting system, has the obstacle avoiding walking function and can be in collision-free automatic butt joint with a bed body and a closestool.

An expandable lavatory for full-size wheelchairs may comprise an aircraft lavatory door system with a forward door and an aft door wherein both doors are capable of expanding into an expanded locked position. The expandable lavatory for full-size wheelchairs may comprise a first single lavatory, a second single lavatory, a collapsible divider, and a lavatory door system which functions to provide a door to each single lavatory and a door for a configuration in which the two single lavatories convert into one expanded double lavatory. The expandable lavatory for full-size wheelchairs may be a forward lavatory facing the aisle in proximity to a first galley, a second galley, and a wheelchair tie down space.

The invention relates to the technical field of intelligent wheelchair control, in particular to an intelligent wheelchair control method and system. The method comprises the following steps: constructing a three-dimensional ground feature model by extracting historical environment data in a memory of electronic monitoring equipment on a wheelchair; thirdly, ground pit geometrical morphology analysis is carried out, pit data are obtained, wheel clamping stagnation situation simulation is carried out based on the pit data, and the wheel struggling behavior is simulated; and finally, constructing an optimization model by using the struggling behavior learning data, and performing optimization through training feature importance parameters to form a clamping stagnation struggling control optimization model. The model is then transmitted to the intelligent wheelchair control terminal. The intelligent wheelchair control technology is optimized, so that the intelligent wheelchair control technology is more perfect.

The foldable multifunctional walking-aid wheelchair mainly comprises a left frame, a right frame, a left handle, a right handle and four wheels, the left frame and the right frame are of a symmetrical structure, the left handle and the right handle are installed at the upper ends of the two frames respectively, and a left brake handle and a right brake handle are installed on the front sides of the upper ends of the two frames respectively. The left front wheel and the right front wheel are installed on the front sides of the lower ends of the two frames respectively, the left rear wheel and the right rear wheel are installed on the rear sides of the lower ends of the two frames respectively, the three supporting rod sets which are not located on the same straight line are installed between the two frames, and the left backrest plate, the middle backrest plate and the right backrest plate are sequentially and rotationally connected and installed between the two frames. The middle seat cushion is rotatably connected with the middle backrest plate, the two sides of the middle seat cushion are rotatably connected with the left seat cushion and the right seat cushion respectively, the left pedal and the right pedal are rotatably installed at the front ends of the two frames respectively, the left front wheel and the right front wheel can be braked by pinching the left brake handle and the right brake handle, and a user can select a wheelchair mode, a walking aid mode or a folding mode according to needs.

The invention relates to the technical field of intelligent wheelchair scheduling, in particular to an intelligent wheelchair scheduling method and system. The method comprises the following steps: extracting an obstacle avoidance failure decision in a historical scheduling task, and generating a clustering logic of decision failure through clustering analysis; analyzing the motion trail deduction deviation of the sudden obstacle based on clustering logic, and further performing sudden risk pre-judgment lag analysis to obtain lag regression data; and lagging regression data is utilized to carry out front deviation correction memory learning of wheelchair scheduling braking, decision is optimized through reinforcement learning iteration, and finally optimized decision data is output. According to the method, the intelligent wheelchair scheduling technology is optimized, so that the intelligent wheelchair scheduling technology is more perfect.

An expandable lavatory and an aircraft cabin configuration including the same. First, second and third walls form the lavatory interior and the third wall is repositionable to expand the lavatory interior footprint to accommodate a wheelchair. The third wall carries a door deployable when the third wall is in the expanded configuration such that the wheelchair can access the lavatory interior via an exit pathway. A first door positioned in the second wall provides access to the lavatory interior via a longitudinal aisle. In some embodiments, a wheelchair securement area is positioned longitudinally aligned with the second door, when the second door is deployed, such that wheelchair access to the lavatory is provided through second door when the lavatory is in the expanded configuration.

The invention belongs to the field of intelligent robots, particularly relates to an intelligent wheelchair following system based on single target tracking, and aims to solve the problem of poor effect of effectively avoiding obstacles in a complex scene and continuously following a single target under the condition of multi-target interference. The system comprises a sensor module used for restoring scene image data; the man-machine interaction module is used for acquiring a to-be-tracked target; the single-target tracking module is used for generating a moving strategy of the intelligent wheelchair; the intelligent decision-making module is used for generating an optimized path and dynamically adjusting the moving direction and speed of the wheelchair; the driving control module is used for realizing smooth steering and emergency braking of the intelligent wheelchair; and the communication module is used for realizing communication among the modules. According to the invention, three-dimensional positioning precision, target identification accuracy and tracking stability are improved, safety control and man-machine interaction are optimized, the method is especially suitable for people having difficulty in moving, and life self-care and social participation are improved.

The invention belongs to the technical field of wheelchairs, and particularly relates to a foldable wheelchair which comprises a backrest frame body, a seat plate frame body, armrest frame bodies and a folding mechanism, the folding mechanism comprises a first folding arm and a second folding arm, the top end of the first folding arm is rotationally connected with the front end of the seat plate frame body, and the top end of the second folding arm is rotationally connected with the bottom end of the backrest frame body; the top of the second folding arm is fixedly connected with the bottom of the backrest frame body through bolts which are in interference fit and can be movably locked, the left bolt and the right bolt are correspondingly arranged, and a pull rope is connected between the two bolts; the overall structural design is simple and ingenious, a user does not need to conduct complex operation when needing to fold, only the pull rope needs to be pulled, and when needing to unfold, only the bolts on the two sides need to be inserted, and locking can be completed.

A chair-drive interface assembly is for use with a wheelchair assembly having a first chair-connection member and a second chair-connection member, and also for use with a drive assembly including a wheel assembly, a motor assembly, a drive-connection member and a steering assembly. The chair-drive interface assembly has a first connection member configured to be fixedly attached to the first chair-connection member. The chair-drive interface assembly also has a second connection member configured to be fixedly attached to the second chair-connection member. The second connection member is spaced apart from the first connection member. The chair-drive interface assembly also has a third connection member configured to be fixedly attached to the drive-connection member of the drive assembly.

A wheelchair comprises a chassis (10) with a chair frame (20) thereon. The chair frame comprises a base frame (21) and a back frame (30) connected pivotally thereto. A first actuator (25) is arranged operatively between the base frame (21) and the back frame (30). The back frame (30) comprises a first part (31) which is connected to the base frame, and a second part (32) which carries a back cushion (23). Both parts (31, 32) are axially displaceable relative to each other. For this purpose the back frame (30) comprises a further actuator (35) which is arranged operatively between the first part (31) and the second part (32) of the back frame.

The invention discloses a dynamic gesture recognition control system for an intelligent wheelchair, and relates to the technical field of intelligent wheelchairs, the system comprises the following components: an environment sensing module which is composed of a laser radar and an ultrasonic sensor and is used for collecting information of a surrounding environment in real time and constructing an environment map; meanwhile, the position and the shape of the obstacle and the distance information between the obstacle and the wheelchair are accurately recognized; by introducing the dynamic gesture recognition technology, not only can the current static gesture action of the user be recognized, but also the following action intention of the user can be predicted based on parameters such as the speed, the angle and the acceleration of the gesture, so that the intelligent wheelchair can make a response in advance, closer and smoother interaction with the gesture operation of the user is achieved, and in addition, the user experience is improved. In combination with the information of the environment sensing module, the intelligent wheelchair can more accurately understand the intention of the user and perform reasonable obstacle avoidance operation in a complex environment, so that the overall use experience and safety are improved.

A multimodal wheelchair configured to be securely mounted to an aircraft is disclosed. The multimodal wheelchair may include: a first section, including: a processing system contained within a housing of the first section; a movement controller component positioned on a portion of the first section that is connected to the processing system; a plurality of wheels that are controllable by the movement controller; and a set of tracks recessed within a first side of the first section; and a second section, including: a seat portion located on a first side of the second section, the seat portion having an integrated harness; and a connection component, coupled to a second side of the second section, that attaches the second section to the first section via coupling with the set of tracks of the first section. Other aspects are described and claimed.

An angle-adjustable wheelchair tractor comprises a lower frame (7) and an upper frame (8) which are hingedly connected, the lower frame (7) being a shock-absorbing frame, the lower frame (7) being respectively provided with a wheel hub motor (2) and a battery (3) for providing electric energy to the wheel hub motor (2), the upper frame (8) being provided with a pair of handles (4) for controlling the direction of the wheel hub, a brake disc (5) being provided on one side of the wheel hub motor (2), a brake handle (6) for controlling the brake disc (5) being respectively provided on the pair of handles (4), a connecting sleeve (10) being provided on the lower frame (7), and a front support frame (11) and a front connection device (12) connected to a front support rod of the wheelchair being respectively provided on the connecting sleeve (10). The utility model has the advantages that the tractor and the wheelchair are connected in a split type, the installation and use are convenient and flexible, and it is convenient for traveling alone over long distances, the frame is provided with a shock absorber and the inclination angle of the upper part thereof is adjustable, which can greatly improve the driving comfort.

The invention belongs to the technical field of intelligent wheelchairs, particularly relates to a wheelchair real-time obstacle prediction and avoidance system based on multi-target tracking, and aims to solve the problem that the performance and application of a wheelchair in a complex dynamic environment are limited in the prior art. The system comprises a data acquisition and processing module used for calculating the distance between an obstacle and a reference point; the obstacle detecting and tracking module is used for generating a suspected area of the obstacle based on the multi-dimensional features; screening out a determined area, then calculating the similarity of suspected dynamic obstacles in the determined area, screening out the dynamic obstacles based on the similarity, and screening out the determined obstacles based on credibility scores; the decision control module is used for determining an optional path based on the path evaluation function; and then a trajectory evaluation preferential function is used to score a trajectory corresponding to path planning, and the trajectory with the highest stability is selected. According to the invention, high-efficiency obstacle detection and avoidance can be realized on the premise of low calculation amount.

The invention discloses an automatic driving wheelchair navigation method and system based on intelligent voice interaction, and the method comprises the steps: responding to a voice wake-up instruction, and starting a voice interaction system, a visual perception system and a navigation system of an automatic driving wheelchair; calling a voice interaction system to output a navigation destination inquiry instruction, and receiving navigation destination feedback information input by a user; calling a visual perception system to generate a three-dimensional semantic point cloud map model containing semantic information and an operation environment; calling a navigation system to mark target position information in the navigation destination feedback information in the three-dimensional semantic point cloud map model; generating a moving path according to the current position information of the automatic driving wheelchair and the three-dimensional semantic point cloud map model marked with the target position information; and controlling the automatic driving wheelchair to move according to the moving path. According to the scheme disclosed by the invention, the navigation instruction can be quickly adjusted according to real-time conditions and user requirements, so that the automatic driving wheelchair is flexibly controlled to move.

The invention discloses an intelligent wheelchair control method based on multi-source information fusion, and belongs to the field of data recognition and wheelchair intelligent control. The implementation method comprises the following steps: constructing a corresponding relation between gesture actions and wheelchair control directions, and presetting an identification framework; processing the obtained multi-source information to obtain a basic probability distribution result of the evidence corresponding to each single-source information; determining the absolute importance of the evidence corresponding to each piece of single-source information in the fusion process; determining the relative importance of the evidence corresponding to each piece of single-source information in the fusion process; determining the comprehensive importance of the evidence according to the obtained relative importance and absolute importance; according to the comprehensive importance of the evidence corresponding to the single-source information, redistributing a fusion weight for the evidence corresponding to each piece of single-source information to obtain a weighted new evidence; dS evidence fusion is applied, a final fused gesture action recognition result is obtained, the behavior of the wheelchair is controlled according to the gesture recognition result, and intelligent wheelchair control based on multi-source information fusion is achieved.

The invention relates to the technical field of intelligent wheelchairs, in particular to an intelligent wheelchair safety early warning braking system and method based on trajectory prediction. According to the technical scheme, the system comprises a multi-sensor module, a data processing module, a track prediction module and a safety early warning braking module. Wheelchair motion state data are collected in real time through a multi-sensor module, multi-source data are fused based on a Kalman filtering algorithm, noise is removed, feature parameters of obstacles and the wheelchair are extracted, a motion track equation of the wheelchair and a target object is derived, the relative distance and the collision time are calculated, the collision risk is evaluated, and according to the risk evaluation result, the collision risk is evaluated. And triggering early warning and starting a brake device. According to the method, the future motion trails of the wheelchair and the target object can be predicted more accurately, the precision and reliability of trajectory prediction are remarkably improved, and powerful support is provided for pre-judging collision risks in advance.

Wheelchair (10) for a person with reduced mobility, - with a frame (13), - with a seat supported by the frame (13) for the person, - with wheels (17, 18) arranged on the frame (13), - with a platform (19) that provides a standing area (28) for a second person, - with at least one coupling point on the frame (13) in which the frame (13) and the platform (19) are connected to each other, - with at least one platform wheel which is arranged near the end of the platform (19) furthest from the coupling point, characterized in that - the platform (19) is fixed to the frame (13) by means of a detachable coupling (32), - the platform wheel is designed as a drive wheel (29) that can be driven by an electric motor, - the platform (19) attached to the frame (13) is designed to move the wheelchair (10) by means of its drive wheel (29).

The present invention is intended to provide a lithium battery pack for a wheelchair and medical auxiliary driving equipment, the lithium battery pack including a battery module configured such that a plurality of cylindrical batteries are arranged along the horizontal and vertical directions therein, an insulation case configured to cover the battery module in an insulating manner while fastening the battery module, and a battery case injection-molded with aluminum so that it has excellent heat dissipation performance, wherein the insulation case covering the battery module is allowed to be detachably inserted and fastened into the battery case, so that the lithium battery pack can be easily mounted on various types of auxiliary driving equipment such as a medical electric scooter, a medical electric wheelchair, etc.

A platform access system for a wheelchair includes a deployable ramp, actuators, a sensor, and a controller. The deployable ramp includes a first elongated beam having a toothed rack portion arranged thereon. The deployable ramp is moveable, via actuators, on a platform between a first position and a second position. The deployable ramp is vertically pivotable on an edge portion of the platform, with a second end being disposed at a second elevation. The first end of the deployable ramp is securable, via one of the plurality of actuators, to the edge portion, and the toothed rack portion of the first elongated beam is arranged to engage a sprocket of a drive wheel of a wheelchair that is disposed at the second elevation. A communication link of the ramp controller is arranged to communicate with the wheelchair to control the wheelchair to traverse the ramp and access the platform.

The utility model discloses a multifunctional mobile nursing device which comprises a movement chassis and a seat assembly, the seat assembly comprises a stand column and a lifting part, the stand column is vertically fixed to one side of the movement chassis and has a height adjusting function, and the lifting part is fixedly installed on the stand column and used for bearing a user; the lifting part comprises a seat plate support horizontally fixed to the top end of the stand column, a backrest support rotationally installed on the seat plate through a first angle adjusting mechanism, and a leg support rotationally installed on the seat plate support through a second angle adjusting mechanism. According to the utility model, the elderly can be safely and efficiently transferred to the bed, the elderly can be automatically navigated to a specified area according to an indoor preset guide line, the direction and position of the elderly can be flexibly and freely changed even in narrow spaces such as bedrooms and toilets, and meanwhile, the elderly can be switched from a wheelchair to a potty chair at any time; and the obstacles of living and sanitary living of the old people are greatly solved.

A system of non-parallel folding planar cross-braces are adapted to naturally fold away from one another to provide a naturally rigid structure that requires little or no latching to provide a stable frame. An interlocking system that engages opposing pivot points of the cross-braces can be arranged to create a very rigidly connected frame. A variation of the system may allow for both a sling seat and an open frame for attached seating to utilize the opposing planar cross-braces.

The invention discloses an exoskeleton rehabilitation wheelchair robot with high safety and stability, and particularly relates to the technical field of exoskeleton wheelchairs, the exoskeleton rehabilitation wheelchair robot comprises a fixing support, a fixing chassis is fixedly arranged at the bottom of the fixing support, four driving wheels are rotatably arranged at the bottom of the fixing chassis, and a connecting frame is telescopically arranged at the top of the fixing support; a back supporting frame is telescopically arranged at the top of the connecting frame, two mounting seats are fixedly arranged on one side of the connecting frame, rehabilitation training devices are rotatably connected to the bottoms of the two mounting seats, and foot supporting plates are rotatably connected to the tops of the two rehabilitation training devices; the controller is pushed by the second telescopic rod to rotate so as to drive the rehabilitation training device to rotate, legs are hung and tightened, the structural strength is improved, the movement gait control is more accurate by adopting a push rod mode, the stability of a person standing on the seat cabin can be further improved, shaking is avoided, and the rehabilitation training effect is better. And the stability and the structural strength of the legs are improved to a certain extent.

The utility model relates to the technical field of medical instruments, in particular to a limb lifting device for orthopedic nursing, which comprises a lead screw, a connecting component is fixedly mounted at the bottom end of the lead screw, a threaded sleeve is screwed and assembled on the outer surface of the lead screw, a supporting block is rotatably mounted on the outer surface of the threaded sleeve, and a supporting rod is fixedly mounted on one side of the supporting block. A supporting frame is fixedly installed at one end of the supporting rod, a movable groove is formed in the outer surface of the supporting frame, and an adjusting block is arranged in the movable groove. According to the limb lifting device for orthopedic nursing, the device is installed on a wheelchair through the connecting assembly, the device can be conveniently used in cooperation with the wheelchair, by rotating a rotary knob, the adjusting assembly is conveniently driven to work, the distance between the two branch supporting arc plates and the leg supporting plate is adjusted, and the device can conveniently adapt to patients of different body types; then the limbs of the patient can be conveniently fixed on the branch supporting arc plates through the bandages, and the situation that the limbs of the patient bend or slide off from the leg supporting plates, and the supporting effect of the limbs of the patient is affected is prevented.

The utility model discloses a wheelchair convenient to fold, which comprises a seat supporting frame, a front supporting frame is hinged on the front side of the seat supporting frame, front wheels are arranged at the bottoms of two fork feet of the front supporting frame, rear supporting rods are respectively hinged on two sides of the seat supporting frame, rear wheels are arranged at the end parts of the rear supporting rods, and a backrest supporting frame is hinged on the rear side of the seat supporting frame. A side supporting rod is connected between the backrest supporting frame and the rear supporting rod, a lower supporting rod is connected between the side supporting rod and the front supporting frame, a lock hole is formed in the upper end of the side supporting rod, and a lock pin assembly corresponding to the lock hole is installed on the backrest supporting frame. The connecting pin can be driven to slide in the guide groove by rotating the handle, so that the lock pin head is driven to be separated from the lock hole under the action of the pull rope, unlocking when the wheelchair is folded is realized, and compared with a traditional plate buckle type structure, the unlocking mechanism has the advantages of being more convenient and labor-saving to operate, free of hand clamping risk and good in attractiveness.