139 results about "Finger movement" patented technology

The disclosure presents a humanoid robot with an upper region (head, torso, arms with forearm assemblies, end effectors), lower region (legs), and connecting central region. Each end effector features index, middle, ring, little finger, and thumb assemblies attached to a housing of said end effector. The housing includes interior wall extents creating spaces for tendon routing, where the first distance between first and second wall extents is less than 45% of the second distance between third and fourth wall extents. Tendons controlling finger movements pass between these wall extents. The robot incorporates a wrist assembly connecting the housing of the end effector to the forearm, actuators housed in the forearm that control the tendons, and a carpal tunnel-like structure that guides tendons from forearm to base of the housing, enabling precise hand movements without requiring actuators in the hand itself.

The embodiment of the invention provides a dynamic tactile rendering method based on a two-dimensional image and a finger motion track. The method comprises the following steps: acquiring an original two-dimensional image; converting a target object in the original two-dimensional image into a three-dimensional structure point cloud; respectively mapping the three-dimensional structure point cloud and the predicted complete trajectory to a unified coordinate system to obtain a corresponding point cloud data point set and a trajectory data point set; performing interpolation smoothing on the matching point set to construct a continuous geometric profile curve; calculating a first-order derivative of each section point in the geometric profile curve, and taking the first-order derivative as a stimulation value of the virtual tactile sense; converting the stimulation value into a driving voltage signal, and controlling the operation of the electrostatic adhesion tactile feedback device through the driving voltage signal; according to the dynamic tactile rendering generation method based on the two-dimensional image and the finger motion trail, the limitation that traditional tactile feedback depends on a static template and special sampling data is broken through, and automatic modeling and real-time response from two-dimensional visual input to physical tactile output are achieved.

The invention discloses a dexterous hand environment article sensing and modeling algorithm based on body sensing. The algorithm comprises the steps that a mechanical arm drives a dexterous hand to approach an object; tactile-spatial data acquisition: a three-axis force sensor is arranged at the tail end of each finger of the dexterous hand, and the system is in contact with an object through multiple fingers of the dexterous hand to acquire multi-dimensional information of the appearance, surface characteristics and local topology of the object; active exploration sampling, multi-finger movement of the mechanical arm and the dexterous hand, and active penetration of unknown object surface and enhanced sampling of local features through the dexterous hand by the system; the method comprises the following steps: modeling an object attribute, analyzing a mechanical response sequence obtained by tactile-spatial data acquisition and active exploration sampling, modeling a target object in three dimensions of elasticity, hardness and local geometric morphology, and realizing accurate identification and modeling of an unknown object appearance form and an object attribute in an environment. The distribution uniformity of the tactile point cloud and the model integrity are improved, the hardware dependency is reduced, and the environmental adaptability is enhanced.

A silencer mechanism for attachment to a Picatinny rail of a gun is provided. The fast tool apparatus has a locking spring and a lever arm which releases the lock with a finger movement, the gapless fixation of said apparatus and its removal from the picatinny rail in a single movement being provided by the fixing apparatus. The inner compartment parts allow the pressure from the gun barrel to be directed in a spiral loop by increasing the loop of the silencer internal compartment parts, to be drawn by the handle inner compartment parts and to be silently discharged through the second drain hole.

The invention discloses a memory alloy driving glove for hand rehabilitation. The memory alloy driving glove comprises a glove body, a forearm base and a traction mechanism, the glove body comprises an elastic iron sheet located on the palm side, the elastic iron sheet extends to the fingertip of each finger from the palm center and is fixed to each finger through a finger ring, and guide grooves are formed in the elastic iron sheet and the finger ring. The front arm base is fixed on the front and back surfaces of the front arm; the traction mechanism comprises memory alloy arrays and traction lines, the memory alloy arrays are arranged on the front face and the back face of the forearm base correspondingly, and the glove body is pulled by penetrating the traction lines through the guide grooves; the device further comprises a bending angle sensor and a memory alloy driver, the bending angle sensor is attached to the back face of the finger, and the memory alloy driver is used for conducting pulse heating on the memory alloy array so as to drive the finger to move. According to the invention, overshoot is suppressed while the response speed is ensured, the steady-state error is reduced, and the follow-up flexibility is improved.

A head-wearable apparatus improves user interactions with virtual interface elements in augmented reality (AR) environments. The apparatus tracks hand movements in 3D space, calculating velocity vectors and positions of fingers. For each virtual interface element, it determines a UI-to-finger vector and calculates alignment with the finger's velocity vector. Interaction zones are dynamically adjusted based on this alignment and velocity magnitude. The system evaluates consistency between finger movement and element locations to predict intended targets. Interactions are triggered when fingers enter adjusted zones of predicted targets. This approach reduces erroneous selections and improves interaction accuracy, even for closely-spaced elements. The invention applies to various AR scenarios, enhancing user experiences in applications like gaming and education.

The application discloses a duck web type pneumatic glove and a hand mirror image control method thereof, and steps of the method comprise the following steps: 1, initialization of the duck web type pneumatic glove; 2, selection and preparation of an active hand and a passive hand; 3, collection of a finger motion track and a joint bending angle of the active hand by a binocular camera; 4, visualization of the finger motion track of the active hand; 5, three-dimensional modeling and mirror image processing of the finger motion track of the active hand; 6, acquisition of a finger motion track and a fingertip pressure of the passive hand by the duck web type pneumatic glove; 7, comparison of the finger motion tracks of the active hand and the passive hand to obtain actual errors of the two; and 8, control of joint angles of the duck web type pneumatic glove according to the actual errors of the two to achieve mirror image motion tracks of the active hand. The application can more accurately and reliably realize hand mirror image by collecting motion tracks of the active hand and the passive hand by the binocular camera and the duck web type pneumatic glove respectively, and controlling fingers of the duck web type pneumatic glove to spread, open and close.

A head-wearable apparatus improves user interactions with virtual interface elements in augmented reality (AR) environments. The apparatus tracks hand movements in 3D space, calculating velocity vectors and positions of fingers. For each virtual interface element, it determines a UI-to-finger vector and calculates alignment with the finger's velocity vector. Interaction zones are dynamically adjusted based on this alignment and velocity magnitude. The system evaluates consistency between finger movement and element locations to predict intended targets. Interactions are triggered when fingers enter adjusted zones of predicted targets. This approach reduces erroneous selections and improves interaction accuracy, even for closely-spaced elements. The invention applies to various AR scenarios, enhancing user experiences in applications like gaming and education.

According to a first aspect of the present invention, it may be provided a method for controlling a computer device. The computer device may comprise a touchless gesture input system. The computer device may comprise a touch-sensitive control surface. The method may comprise in a touch input mode, generating at least one control command configured to manipulate content displayed on a display associated with the computer device based on touch input on the touch-sensitive control surface. It may be provided determining presence of a gesture mode activation trigger. The gesture mode activation trigger may include a touch input on the touch-sensitive control surface comprising two or more touchpoints. The method may further comprise switching from the touch mode to a touchless gesture input mode in response to the determining. In the touchless gesture input mode, the method may comprise generating at least one control command configured to manipulate content displayed on the display based on a free-space finger movement determined by the touchless gesture input system.

The application discloses a three-dimensional target selection method based on finger motion as a ray mapping basis, and belongs to the technical field of human-computer interaction. The method comprises the following steps: (1) capturing hand state information, switching the mapping subject of ray tracking according to the stretching and bending degree of fingers and the motion speed of fingers, and determining the mapping subject; the mapping subject comprises the whole hand and each finger; (2) determining the information type number of mapping, the mapping scale, the projection mode of mapping according to the current mapping subject, and selecting the target in the three-dimensional space by using the mapped ray. The application switches the current mapping subject, improves the selection efficiency of the target in the three-dimensional scene, and reduces the fatigue of hands and arms; different mapping information type numbers, projection modes and projection scales are flexibly used, so that the limitations of different finger types are compensated, and the mapped ray can have a larger selection range in the virtual three-dimensional scene.

To provide an input terminal device that, when detecting the position of a finger in a non-contact manner to perform an input operation, correctly executes processing according to an intended input operation without reacting to an invalid motion of the movement of the finger.SOLUTION: An input terminal device inputting a user's operation through a position input object PS comprises: a position detection unit that detects the position of the position input object operated by the user in a non-contact manner; a display unit that displays a cursor on the basis of the position detected by the position detection unit; and an operation processing control unit that causes corresponding operation processing to be executed on the basis of the position detected by the position detection unit. The operation processing control unit has a plurality of operation modes related to the execution of the operation processing, and one of the operation modes includes a state M0 in which any types of operation processing are not executed other than moving the cursor according to the position of the position input object. The operation processing control unit is configured to switch between the plurality of operation modes when the user performs a specific operation through the position input object.SELECTED DRAWING: Figure 5

The utility model discloses a multifunctional restraining glove which comprises a glove body, a restraining belt, a grip ball and a tightening device, the glove body is integrally connected with finger separating sleeves of four fingers, a hole is formed in the position, corresponding to the ring finger, of the glove body, the end of each finger separating sleeve is open, and a groove is formed in the position, corresponding to the hand back, of the glove body. A grip ball is sewn and connected to the position, corresponding to the palm center, of the glove body, and an elastic rope is sewn between the side, facing the grip ball, of each finger separating sleeve and the grip ball. A finger ring is fixedly arranged at the end of each finger separating sleeve in a sleeved mode, a guide pipe is fixed to the bottom of the grip ball, four pulling ropes with different lengths penetrate through the guide pipe, one end of each pulling rope is fixed to one finger ring, the other ends of the four pulling ropes are movably fixed to a tightening device, and the tightening device is fixed to a binding belt. The glove has the advantages that the elastic rope of the glove body limits the moving space from fingers to the grip ball, so that the fingers are prevented from moving randomly while moving and exercising of the fingers are facilitated, and an infusion tube is prevented from being struggled off.

The invention provides an image-based finger trajectory processing method, an edge computing device and a medium. The method comprises the following steps: determining a finger tracking position of a finger at each moment according to images of the finger at different moments; determining a finger motion parameter at the current moment based on the finger tracking position at each moment; based on the finger motion parameters at the current moment, determining the validity of the finger tracking position at the current moment; and determining a corresponding finger motion track based on the effective finger tracking position. According to the method and the device, invalid track points which are irrelevant to finger control or have overlarge finger tracking errors in the finger motion track can be comprehensively eliminated, accurate display of the finger motion track is ensured, and the effective reliability of the finger motion track is improved.

The invention relates to the technical field of simulation, in particular to a finger motion trail simulation method and device, equipment, a medium and a program product, and the method comprises the steps: obtaining a hand skeleton image and a hand motion video of a detected target; constructing a three-dimensional hand simulation model according to the hand skeleton image; extracting a plurality of video frames from the hand action video, extracting a two-dimensional coordinate of at least one position point from each of the plurality of video frames, converting the hand action video into a three-dimensional coordinate based on a pre-established coordinate mapping relationship, and forming time sequence data according to the position point of the three-dimensional coordinate; and driving the three-dimensional hand simulation model to execute a simulation action by using the time sequence data, and generating a finger motion track of the tested target according to an execution result of the simulation action. Therefore, the problems of high acquisition cost, poor universality and the like of the finger motion trail in the prior art are solved.

The application discloses a hand exoskeleton for capturing finger movement and a finger configuration reconstruction method, and can realize full-space precise movement capturing of human fingers and reconstruction of finger configurations. The hand exoskeleton is composed of a plurality of serial kinematic chains and a common base, each serial kinematic chain comprises one active joint and five passive joints, and a magnetic rotation angle sensor is arranged on the joint to realize movement capturing of the end of the serial kinematic chain. The serial kinematic chain forms a parallel structure with a human finger to realize six-degree-of-freedom precise movement capturing of the end of the human finger. Captured human finger tip movement is reconstructed through a circular arc fitting algorithm, and the finger movement configuration can be displayed in real time in a three-dimensional visual simulation environment. According to different requirements, the number of serial kinematic chains on the base can be increased or reduced, and hand movement can be reproduced in real time in a three-dimensional simulation environment, and experience is improved.

The utility model relates to a pair of restraining gloves, belongs to the technical field of medical instruments, and solves the problem of unsmooth blood circulation caused by the fact that the hands of a patient are not easy to move due to the restraining gloves in the prior art. The device comprises an auxiliary movement mechanism used for finger movement, the auxiliary movement mechanism comprises an arc-shaped elastic metal sheet and a bending control assembly, and the bending control assembly is used for controlling bending or unbending of the arc-shaped elastic metal sheet; the bending control assembly comprises a flexible inserting sleeve and a rigid inserting strip, the flexible inserting sleeve is arranged on one side of the arc-shaped elastic metal sheet, the rigid inserting strip can be inserted into the flexible inserting sleeve to straighten the arc-shaped elastic metal sheet, the arc-shaped elastic metal sheet comprises a fixed section and a movable section, and after the rigid inserting strip is pulled out of the flexible inserting sleeve, the movable section can be bent towards the palm center. After the rigid insertion strip is drawn out of the flexible insertion sleeve, the movable section loses constraint, fingers of a patient are pushed to bend under the action of bending force of the movable section, and hand movement of the patient can be assisted without taking down the constraint glove.

The invention provides a password anti-theft method and device, equipment, a storage medium and a product, and relates to the field of financial science and technology or other related fields. The method comprises the following steps: in response to a target operation of a user on a password input area of password input equipment, generating a corresponding random confusion pattern according to a preset period; and displaying the generated random confusion patterns in the password input area in sequence, so that the camera device confuses moving tracks when shooting the moving tracks of the fingers of the user in the password input area. According to the method, visual interference can be formed in the password input area, and the integrity of the finger movement track in the image captured by the candid shooting equipment can be remarkably destroyed, so that lawbreakers cannot clearly identify and track the finger movement track from the video recording, and password leakage of a user is avoided.

In order to highlight effective decoding information contained in complex finger motor imagery electroencephalogram data, the invention discloses a finger motor imagery decoding method based on a diversity feature learning network, and provides two data preprocessing methods based on time migration and masks. On this basis, a diversity feature generation module and a multi-scale feature enhancement module are constructed, and finally a dual-branch diversity feature learning network is formed. The data preprocessing method is used for generating difference of electroencephalogram data; the diversity feature generation module is used for extracting effective decoding information contained in the electroencephalogram data and solving the problem that deep potential information is difficult to extract; the multi-scale feature enhancement module is used for fusing and enhancing the decoding potential of the extracted diversity features. According to the method, diversity characteristics can be extracted, the problem that deep potential information is difficult to use is solved by utilizing the characteristics of electroencephalogram signals, and the ability of decoding finger motor imagery is remarkably improved.

The invention relates to the technical field of medical care, and discloses a device for driving fingers of a patient to move, the device comprises a base and a support seat on the base, an electric capstan is rotatably connected in the support seat, an insertion groove is formed between the base and the support seat, a glove is installed in the insertion groove, the glove comprises a palm sleeve and finger sleeves, and the palm sleeve and the finger sleeves are arranged in the insertion groove. The palm sleeve is installed at the inserting groove, a finger sleeve is installed at one end of the palm sleeve, and an upper pull wire is installed at the upper end of the finger sleeve. An electric capstan is driven by a motor in a support seat to rotate, the electric capstan pulls an upper pull wire to be wound on the outer surface of the electric capstan, so that the upper pull wire pulls a finger stall and fingers in the finger stall to tilt upwards, and the fingers of a patient are straightened; and the electric capstan loosens the upper traction line, so that the fingers naturally fall down, and the fingers of the patient are driven to move in cycles.

The utility model discloses a numerical control lathe of automatic feeding relates to numerical control lathe technical field, including numerical control lathe body, the one side fixed connection of numerical control lathe body has the mounting panel, the one side mounting of mounting panel has the switching mechanism, in the utility model, through pneumatic finger to the component for grabbing fixed, second electric push rod work drive pneumatic finger movement, make pneumatic finger linear motion in vertical direction, first electric push rod work drive mobile sleeve board movement, the horizontal position of pneumatic finger is adjusted, is used for the loading and unloading position of component adjustment, can be applicable to different component feeding, when loading, fourth electric push rod work drive sliding rod movement, steering wheel movement, steering rod rotates, and the angle of feeding frame is deflected, and the loading angle of component is adjusted when loading, improves the positioning accuracy of component.

To provide a small article case having a fit-in cover that can be easily opened / closed and fixed due to a double lock mechanism, where in the mechanism, the fit-in cover performs an opening / closing and fixing function by a rib lock (insertion part) moving in a certain direction.SOLUTION: A rib lock (insertion part) (1a) moves in a certain direction by a simple finger movement. When a fit-in cover is in an open state, if the rib lock (insertion part) moves along an L-shaped groove of a cover part and a mounting base groove on a rear face, a rectangular key is inserted into a notch latch at a symmetrical / opposing position, and a fit-in cover (2a) is fixed / stopped. When the rib lock (insertion part) moves in an L-shaped direction, the rectangular key is pinched between the mounting base groove on the fit-in type rear face and the notch latch, and the cover changes to a closed state. A return to the open state is achieved by moving the rib lock (insertion part), acting as a knob, backwards.SELECTED DRAWING: Figure 1

The invention discloses a bionic dexterous hand and a humanoid robot. The bionic dexterous hand comprises a metacarpal bone assembly, a plurality of finger assemblies and a driving assembly. Each finger assembly comprises a cross-shaped connecting unit and a phalanx unit, the cross-shaped connecting units are rotationally connected with the metacarpal bone assembly and the phalanx units respectively, and each phalanx unit comprises two phalanx blocks which are detachable in a left-right split mode; the driving assembly is in transmission connection with the finger assembly and drives the finger assembly to bend and laterally swing. The cross-shaped connecting unit allows the fingers to bend and swing laterally. On the other hand, connection support can be provided for the left and right detachable phalanx blocks. The maintainability and repairability of the dexterous hand are improved, and the replacement cost is reduced. And the finger movement is more accurate and controllable, so that the control difficulty is reduced, and the operation stability of the dexterous hand is improved.

The invention discloses an anesthetic patient finger activity monitoring device based on inertia measurement, and relates to the field of finger activity monitoring, the anesthetic patient finger activity monitoring device comprises a detector, a wiring end of the detector is fixedly connected with a data line, the other end of the data line is fixedly connected with a toggle clip type sensor, the toggle clip type sensor is clamped at a fingertip, and the detector is connected with a power supply. The measuring system comprises a sensor module, a signal processing module, a multi-mode data fusion module, a low-delay data transmission module and an environment adaptation and self-calibration module. By capturing the finger micro-motion signal in real time and being linked with the central monitoring system, the system is used for anesthesia depth dynamic evaluation and intraoperative risk early warning, the defect of motor nerve feedback in traditional anesthesia monitoring is overcome, high-precision finger micro-motion signal monitoring is achieved, sub-millimeter finger motion changes can be accurately captured, and the accuracy and accuracy of anesthesia monitoring are improved. Richer and more accurate original data are provided for anesthesia depth evaluation.

1. Name of the Design Product: Imitation Doll Gloves. 2. Use of the Design Product: The product is used to be worn on people's fingers to simulate the finger movements of BJD ball-jointed dolls, enhancing the interactivity and expressiveness of the dolls. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

It measures finger movements accurately with a simple configuration. [Solution] A measuring device 1 for measuring the movement of a finger 3, comprising: a base portion 11 attached to the proximal phalanx 26 of the finger 3; a distal phalanx attachment portion 12 attached to the distal phalanx 28 of the finger 3; a connecting link 13 having one end 13a rotatably connected to the base portion 11 around a first rotation axis A1 and the other end 13b rotatably connected to the distal phalanx attachment portion 12 around a second rotation axis A2, connecting the base portion 11 and the distal phalanx attachment portion 12; and a sensor 14 for measuring the relative position of the distal phalanx attachment portion 12 with respect to the base portion 11, wherein the first rotation axis A1 is positioned on the fingertip 28a side of the PIP joint 22 when the finger 3 is extended.

The invention relates to a rocker-based man-machine interaction device, which comprises an electronic assembly and a touch assembly, the electronic assembly comprises a circuit board and a rocker mounted on the circuit board, the touch assembly comprises a composite keycap and a support cap, the composite keycap is fixedly mounted on the rocker, the composite keycap is used for placing a finger and transmitting finger motion to the rocker, and the support cap is used for supporting the rocker. The supporting cap is arranged on the lower side of the composite keycap, and the composite keycap is in point contact with the supporting cap. According to the invention, human finger movement is fitted by a mechanical structure of the touch assembly through ergonomic design, and a basic structure design of a novel operation mode different from existing multiple operation modes is provided for man-machine interaction equipment.

A glove heating piece is fixed in an interlayer of the inner face of a glove of the finger exercising device, an air bag is further fixed to the inner face of the glove, stretching and bending movement assemblies are fixed to the finger back areas of the outer faces of five fingers of the glove, and the five stretching and bending movement assemblies are connected with a six-way piece through air pipes and valves. An abduction and adduction movement assembly is fixed between every two adjacent fingers of the gloves, the four abduction and adduction movement assemblies are connected with a five-way piece through air pipes and valves, the air bag, the six-way piece and the five-way piece of each glove are connected with a four-way piece through air pipes and valves, and the four-way pieces of the two gloves are connected with a three-way piece through air pipes and valves. An air pump assembly is installed in the control box and connected with a three-way piece through an air pipe. According to the finger exercise device, by arranging multiple exercise assemblies, the exercise effect of the finger exercise function is comprehensively improved, and more comprehensive exercise function recovery training on the fingers of a patient is achieved.

The utility model relates to the technical field of medical instruments, in particular to a patient limb fixing frame for operating room nursing, which comprises a bearing piece, an arm limiting piece and a finger limiting piece, the bearing piece comprises an arm bearing plate and a finger bearing plate hinged with the arm bearing plate, the arm supporting plate and the finger supporting plate are hinged to each other, an angle limiting assembly is arranged at the hinged position of the arm supporting plate and the finger supporting plate and used for limiting the movement range of the wrist, and the arm limiting piece is installed on the arm supporting plate and used for limiting displacement of the arm on the arm supporting plate. The hand of a patient can be kept stable, wrist joint movement caused by finger movement during an operation is avoided, smooth operation is facilitated, the angle between the arm bearing plate and the finger bearing plate can be adjusted through the angle limiting assembly, and postoperative rehabilitation training is facilitated.

The invention discloses an intelligent diagnosis and prediction system for cervical spondylotic myelopathy based on finger motion parameters. After a controller receives a prediction instruction of an upper computer, a three-axis motion sensor is controlled to be started; n times of three-axis motion data of the left and right little fingers of the wearable suite worn by the person to be predicted in the flexion and extension process within the preset time are obtained and uploaded to the upper computer; the upper computer performs real-time oscillogram display on the nth three-axis motion data of any little finger, analyzes whether the three-axis motion data exceeds a corresponding amplitude range or not, if yes, reminds the nth detection again, and if not, the nth detection data is qualified and stored; and for the qualified three-axis motion data of each little finger each time, constructing a motion feature vector, inputting the motion feature vector into the target machine learning model, and predicting a cervical spondylotic myelopathy prediction result of the person to be predicted.

The application provides an old-age assistance system based on artificial intelligence applied to the field of old-age service systems, introduces a finger ring assembly convenient for the old to wear by themselves, realizes mechanical sensing of whether the fingers of the old are in a motion state, and reflects the safety state of the old, when the fingers of the old are in an irregular activity state, it indicates that the old is in a safe normal state, when the fingers of the old have not been moved for a long time, it can indicate that the old is in an abnormal state to a certain extent, except for the special case that the old is sleeping, at this time, the intelligent bracelet disc sends an abnormality reminder to a mobile phone end, so that a guardian can further confirm the safety of the old in time, in addition, aiming at the special case that the frequency of finger movement is low when the old is sleeping, the safety of the old during sleep and when the old recovers from sleep can be monitored through the monitoring means of the intelligent bracelet disc in the shutdown state.