138 results about "Hand position" patented technology

An extended Reality (XR) system is provided for providing a user interface in an XR environment. The XR system detects a position and an orientation of a hand of a user. The XR system determines a user view of the hand using the detected position and orientation. In response to determining the user view is of a dorsal surface of the hand, the XR system causes display of a hand-centric user interface using a set of dorsal surface user interface elements. In response to determining the user view is of a palmar surface of the hand, the XR system causes display of the hand-centric user interface using a set of palmar user interface elements. The XR system detects, using the set of tracking sensors, a user input based on an interaction with the hand-centric user interface. The XR system then performs an action based on the detected user input.

An extended Reality (XR) system is provided for providing a user interface in an XR environment. The XR system detects a position and an orientation of a hand of a user. The XR system determines a user view of the hand using the detected position and orientation. In response to determining the user view is of a dorsal surface of the hand, the XR system causes display of a hand-centric user interface using a set of dorsal surface user interface elements. In response to determining the user view is of a palmar surface of the hand, the XR system causes display of the hand-centric user interface using a set of palmar user interface elements. The XR system detects, using the set of tracking sensors, a user input based on an interaction with the hand-centric user interface. The XR system then performs an action based on the detected user input.

The invention discloses an immersive sound effect VR sound console space positioning method and a related device, which can be used in the field of virtual reality, and the method comprises the steps: collecting the hand motion information of a user in real time, and determining the hand position; generating tactile feedback parameters based on the hand motion information; based on the tactile feedback parameters, establishing a space mapping relation between the hand and the virtual control, and calculating to obtain a coherence index of a motion trail of the virtual control; adjusting the vibration parameter based on the coherence index, and rendering the roughness corresponding to the texture parameter in real time based on the adjusted vibration parameter to obtain an optimized tactile feedback parameter; based on the optimized tactile feedback parameter, generating an audio parameter adjustment instruction and updating a visual display effect of the virtual control; and outputting an audio parameter regulation and control signal based on the visual display effect, the optimized tactile feedback parameter and the audio parameter regulation instruction. Therefore, the continuity of sensing the spatial position of the virtual control by the user is improved, and the user interaction experience is improved.

The present invention provides a DJ system for processing audio data, comprising an audio input unit for receiving audio data representing a piece of music, an audio processing unit for processing the audio data, an audio output unit for playing the audio data, and a gesture detecting apparatus for detecting a hand position, which is a position in space of a hand of a user of the system, and wherein the gesture detecting apparatus is configured to detect a turntable approach gesture or a transport control gesture.

The utility model relates to the field of electric vehicle accessories, and discloses an electric vehicle head vertical handle with an embedded design, which comprises a transverse handle main body and a vertical pipe, a handle stem is arranged in the middle of the transverse handle main body, the transverse handle main body is connected to the vertical pipe through the handle stem, grips are symmetrically connected to two sides of the handle stem, and an instrument display screen is mounted on the top surface of the handle stem. A car lamp button and a horn button are installed on one grip, a shift-up button, a shift-down button and an instrument setting button are installed on the other grip, a speed regulator is further arranged on one side of the instrument setting button, and a protective layer is arranged on the outer side of the grip. Due to the highly-integrated control function, a rider can complete operation without frequently shifting the sight line or the hand position, and riding safety and convenience are improved; due to the embedded design, water can be prevented from entering, the situation of damage caused by collision is reduced, and the durability of the product is improved; and in combination with an intelligent management system, more personalized and convenient use experience is provided for a rider.

A photographing system (101) according to an aspect of the present disclosure includes a photographing means (11), a guiding means (12), and a photographing range adjustment means (13). The photographing means (11) photographs a hand of a user. The guiding means (12) displays a guiding image serving as a mark for the user for guiding a position of his / her hand. Further, the guiding means (12) moves a position at which the guiding image is displayed. The photographing range adjustment means (13) adjusts a photographing range of the photographing means (11) to a range corresponding to the position at which the guiding image is displayed.

A method and system for monitoring a user during an educational activity in an extended reality (XR) environment are disclosed. An educational activity is presented in an XR environment using XR hardware, and one or more sensors associated with the XR hardware monitor physical characteristics or movements of the user during the activity. A deviation detection module determines that a physical deviation event has occurred based on a deviation from an expected physical parameter associated with the educational activity. In response to the physical deviation event, a notification is generated to an instructor system, enabling real-time or post-activity review of the user’s XR experience. The monitoring may include eye tracking, head orientation tracking, hand position tracking relative to defined boundary regions, and correlation of multiple sensor inputs.

The utility model relates to the technical field of automatic liquid taking of cleaning agents, in particular to a pressure pump mechanism of an automatic liquid taking device, which comprises a support, a photoelectric sensor arranged at the top of the support and an electric control pressing mechanism. The electric control pressing mechanism comprises a guide cylinder arranged at the top of the support, a clamping sleeve arranged on the peripheral side of the guide cylinder, a coil arranged in the clamping sleeve and a magnetic control pressing block arranged in the guide cylinder. The hand position of a user is detected through the photoelectric sensor, then detection information of the photoelectric sensor is sent to the controller, and then the magnetic control pressing block in the guide cylinder is pushed out through a magnetic field generated in the center of the coil after the coil is powered on. And the lowest end of the cleaning agent bottle extrudes the pressing pump head to spray the cleaning agent in the cleaning agent bottle onto the hand of a user, so that automatic liquid taking is completed, and cross infection caused by pressing between hands is avoided.

The utility model provides a fixing device for breast radiotherapy, and belongs to the technical field of medical instruments. Comprising a bottom plate, the outer wall of the bottom plate is fixedly connected with a plurality of arm supporting rods, the outer walls of the arm supporting rods are fixedly connected with hand holding rods, rod bodies of the hand holding rods are slidably connected with grips, and the top ends of the grips are fixedly connected with two rotating plates. A bottom plate is arranged, the outer wall of the bottom plate is fixedly connected with a plurality of arm supporting rods, the outer walls of the arm supporting rods are fixedly connected with hand holding rods, rod bodies of the hand holding rods are slidably connected with grips, and the top ends of the grips are fixedly connected with two rotating plates; and the clamping hand assembly is used for improving the clamping effect on the hand body position of the patient, and the clamping hand assembly is connected with the rotating plate.

The invention relates to a tower clock (1) comprising - a time display unit (2) with a dial (3) and at least two hands, - a stepper motor (4) which is connected to the first pointer (Z1) via a first clock shaft (W1), - an accelerometer configured as a 2D accelerometer or as a 3D accelerometer (5) which is attached to the first pointer (Z1) or to the first clock shaft (W1), - a reading unit (6) for reading the accelerometer (5), and - a control computer (7) coupled to the reading unit (6) and to the stepper motor (4), which is configured to receive a time signal (ZS), to receive a pointer position signal (PS) read by the reading unit (6) from the accelerometer (5) and to control the stepper motor (4) depending on the time signal (ZS) and the pointer position signal (PS). Furthermore, the invention relates to a method for operating the tower clock (1).

The present disclosure discloses a handle arrangement and a method for controlling a handle arrangement, the handle arrangement comprising a base, a detection device, a handle, a detected component, and a control device. The base defines a base cavity. The detection device is arranged in the base. The handle is movable relative to the base. The detected component is arranged in the handle. The control device is communicatively connected to the detection device. The detection device is configured to detect a distance between the detected component and the detection device and to send a detected distance value to the control device, wherein the control device is configured to send different signals according to the distance value detected by the detection device.The handle arrangement of the present disclosure is capable of determining the current position of the handle from the positional relationship between the detection device and the detected device. Furthermore, the handle arrangement of the present disclosure is capable of simultaneously detecting the positions of the detected device and the hand, thereby controlling the handle. This helps the user to operate the handle without touching a handle body, thus improving usability.

The invention relates to the technical field of robot hand control, and discloses a multi-camera-based robot hand positioning and musical instrument playing control method and system, and the method comprises the steps: obtaining a global image through a head camera, and providing a hand rough position; the fingertip camera obtains a local image and provides fine positioning of a target; fusing coarse and fine positioning, calculating a relative position, and planning a motion track; a robot execution mechanism is controlled to execute the track to complete playing; monitoring an actual position, calculating an error, and correcting a joint when the error exceeds a threshold value; the system comprises a head camera module, a fingertip camera module, a visual fusion module, a control module, a robot execution mechanism and a feedback and correction module. According to the invention, by acquiring the high-resolution local image and combining the global rough position information provided by the head camera module, effective combination of rough positioning and fine positioning is realized, and the problem that single global vision is easily blocked by hands or the precision is insufficient due to long distance is effectively overcome.

This invention relates to the field of master-slave robot control, specifically providing a motion mapping method, apparatus, electronic device, and storage medium for master-slave robots. The method includes: acquiring the position data and movement speed of the master hand, as well as the shortest movement distance from the hand to the microscope boundary; determining a preliminary mapping ratio based on the movement speed; the preliminary mapping ratio being the ratio of the master hand displacement to the slave hand displacement; determining a safety damping coefficient based on the shortest movement distance and a preset safety distance; multiplying the preliminary mapping ratio by the safety damping coefficient to obtain a target mapping ratio; determining a cutoff frequency based on the movement speed, and filtering the position data based on the cutoff frequency to determine the target filtered displacement increment of the master hand; determining the target displacement of the slave hand based on the target filtered displacement increment, and mapping the target displacement to the movement of the slave hand. The technical solution provided by this invention can improve the accuracy of master-slave motion control.

An information processing apparatus is configured to be communicatively connected to a display device that displays a spatial image including at least one of a real-space image and a virtual-space image and configured to process information communicated with the display device. The information processing apparatus includes at least one processor. The processor is configured or programmed to detect a movement of a hand of a user viewing the spatial image displayed on the display device, as a first detection result, and to detect a position of the hand, as a second detection result, in association with the acquisition of the first detection result. The processor is further configured or programmed to switch a function performed by the display device according to the first detection result and the second detection result.

The invention relates to a tower clock, comprising: a time display unit with a clock face and at least two hands; a stepper motor which is connected to the first hand (Z1) via a first clock shaft (W1); an acceleration sensor designed as a 2D acceleration sensor or as a 3D acceleration sensor, which is attached to the first hand (Z1) or to the first clock shaft (W1); a reading unit for reading out the acceleration sensor; and a control computer coupled to the reading unit and to the stepper motor, which is designed to receive a time signal (ZS), to receive a hand position signal (PS) of the acceleration sensor read out by the reading unit and to control the stepper motor as a function of the time signal (ZS) and of the hand position signal (PS). Furthermore, the invention relates to a method for operating the tower clock.

The utility model provides a portable holding device of hand-held spectrograph, relates to spectrograph technical field, including spectrograph body, the bottom of spectrograph body is provided with the groove, the inside of groove close to one end bearing is rotatingly connected with the hand-held handle, the top end of hand-held handle close to the centre is provided with the arc groove, and the arc groove is provided with the hand-held handle. The inner arc wall of the arc groove is sleeved with and fixedly connected with a worm-gear-shaped arc plate, a rotating rod is arranged above the worm-gear-shaped arc plate, and the surface of the rotating rod is sleeved with and fixedly connected with a worm. According to the utility model, through a linkage structure of the driving motor, the rotating rod, the worm and gear and the handheld handle, the motor can be driven by pressing the control button, the rotating rod and the worm-gear-shaped arc plate are driven to rotate, and multi-angle adjustment of the handheld handle in the groove is realized. The holding angle can be flexibly adjusted regardless of habits and detection postures of operators, so that the hands are natural and comfortable, fatigue and operation instability are avoided, the detection precision and efficiency are guaranteed, and the device is particularly suitable for complex working conditions such as high altitude and narrow space.

A sawing device includes a sawing machine, a safety module, and a controller. The sawing machine has a saw blade. The safety module has a positioning marker and a visual element disposed on the same side of the saw blade as the positioning marker and capturing the positioning marker to obtain a relative position between the positioning marker and a center of the saw blade to define a saw blade warning area based on the relative position. When a hand approaches the sawing machine, the visual element detects a position of the hand to define a hand warning area. The controller is electrically connected to a motor and the visual element. When the visual element determines that the saw blade warning area and the hand warning area partially overlap, the visual element sends a braking signal to the controller, causing the controller to stop the motor.

The utility model discloses a grinding machine handrail adjusting device which comprises a support base, a power device and a linkage support. The support base comprises a first connecting plate and a second connecting plate. One end of the power device is rotationally connected with a first shaft hole formed in the second connecting plate through a first connecting shaft; one end of the linkage support is rotationally connected with a first pin hole formed in the second connecting plate, and the other end of the linkage support is rotationally connected with the positioning base. The position of the handrail of the grinding machine can be adjusted, specifically, through stretching out and drawing back of the power device, the two ends of the power device can also rotate, the linkage support can be driven to rotate, the linkage support drives the support base to move when rotating, and if the handrail is fixed to the support base, movement of the handrail can be controlled; therefore, the operation of operators with different heights is adapted, and the operation comfort of the operators is kept.

A semantic-driven immersive telepresence system for bandwidth-efficient transmission of three-dimensional human representations. The system extracts compact semantic details from captured image data instead of transmitting complete raw 3D content. Color semantics are derived by estimating scene lighting characteristics using a lightweight model, combined with pre-captured base skin and clothing color. Motion semantics are extracted via keypoint detection of body joints, facial features, and hand positions. A regression-based method using keypoint-anchored vertices (KAVs) maps sparse keypoints to parametric human model parameters in real-time. The system transmits compressed semantic information over networks and reconstructs human representations at receiving devices. A multi-stage neural rendering pipeline with patch-based processing generates photo-realistic visual output. The approach significantly reduces bandwidth requirements compared to traditional bit-by-bit transmission of point clouds or meshes while maintaining low latency, real-time performance, and high visual quality suitable for interactive telepresence applications.

An augmented reality (AR) device generates hand annotations for an image depicting a user's hand. The device includes a display, a processor, and a memory storing instructions for performing operations. The device performs a calibration operation to generate a 3-D model of the user's hand based on measurements. The calibration operation prompts the user to mimic the hand gesture presented by the animated virtual representation of a hand to obtain optimal images of the hand for hand pose estimation. A 3-D virtual representation of a hand in a hand pose corresponding with a hand gesture is generated based on the 3-D model. The device presents the 3-D virtual representation of the hand in AR via the display. During presentation, the device detects an input and captures an image of the user's hand positioned to correspond with the 3-D virtual representation. The captured image is stored with corresponding hand annotations based on the 3-D model.

The utility model relates to mechanical hand positioning technical field, concretely to a kind of accurate positioning mechanism of five-axis side hanging double-arm double-section mechanical hand, including longitudinal slide, longitudinal slide outer side is equipped with sliding slot, sliding block is slidably installed in the sliding slot, the one side of sliding block is fixedly installed with L-shaped plate, the L-shaped plate bottom end is fixedly installed with inclined bracing plate, the top of longitudinal slide is respectively equipped with longitudinal slide rail by bolt, the outer side of longitudinal slide rail is slidably installed with first sliding clamp, first inner thread block is fixedly installed between the first sliding clamp, first inner thread block and L-shaped plate top are equipped with horizontal sliding assembly by bolt, the utility model is equipped with L-shaped plate structure with inclined bracing plate by longitudinal slide side, and the rigidity linkage of combination horizontal platform and longitudinal drive component is formed Space triangular support and low gravity center layout, substantially enhance the bending and torsion resistance of mechanism, ensure positioning stability and motion stability under high load.

This utility model discloses a down-filling device for garment processing, belonging to the field of garment down-filling technology. It includes a down-filling box, a down-filling machine, a down-filling assembly, and a pressing assembly. The down-filling machine is fixedly connected to the top of the down-filling box, and the down-filling assembly is installed on the down-filling machine. A frame is fixedly connected to the right side of the down-filling box, and a conveying mechanism is installed on the inner side of the frame. A conveying motor is fixedly connected to the front side wall of the frame, and the pressing assembly is installed on the top of the frame. Through this method, the down-filling tube can extend and retract under the action of an external electro-hydraulic rod. During down filling, the operator firmly holds the fabric down-filling opening, and the down-filling tube and nozzle extend into the fabric. While filling, the external electro-hydraulic rod drives the outer retaining ring to retract, while the operator's hand position remains unchanged, thus ensuring that the filled down is more evenly distributed inside the fabric.

The utility model relates to the technical field of conveying devices, in particular to a three-shaft feeding and discharging conveying device of a truss manipulator, which comprises a manipulator and a conveying assembly, and the conveying assembly comprises a three-shaft driving mechanism and four supporting parts. The supporting component comprises a stand column, a sliding sleeve piece, a mounting plate, a mounting bolt, a connecting bolt, a mounting part and a rolling wheel. A worker slides the sliding sleeve piece upwards along the stand column, the connecting bolt is screwed into the first screw hole, then the stand column is pushed, the stand column and the mechanical arm can be conveniently moved by means of rolling of the rolling wheels, and when the mechanical arm is moved to a needed working area, the sliding sleeve piece is moved downwards to enable the mounting plate to fall on the ground, so that the working efficiency is improved. Connecting bolts are screwed into second screw holes, then mounting bolts are screwed into threaded holes formed in the mounting plate and the ground, and adjustment of the position of the manipulator is completed; according to the utility model, the working area of the manipulator can be conveniently moved and adjusted.

The embodiment of the utility model discloses a water dispenser which comprises a display panel, a water outlet and a container placement seat, and further comprises first acquisition equipment for acquiring first portrait information, and second acquisition equipment for acquiring second portrait information, container information and hand position information, the first acquisition equipment is positioned below the display panel in the vertical direction; the second collection device is arranged right behind the water outlet in the horizontal direction, and the included angle between the target collection connecting line and the horizontal plane is 45-75 degrees. According to the water dispenser, the portrait information, the container information and the hand position information of the user can be recognized through the first collection device and the second collection device, so that whether water flows out or not and the water outlet information are judged, user operation can be simplified, and intellectualization and safety are improved.

The invention relates to a method for detecting the position of a hand of an occupant of a vehicle, the method comprising at least one iteration comprising the following steps: - acquiring an image (IMG) including the occupant by means of an image sensor (5); - estimating, by processing the acquired image (IMG), the respective three-dimensional coordinates (Xi, Yi, Zi) of a plurality of points of a portion of the body of the occupant comprising the hand; - determining, as a function of the respective three-dimensional coordinates (Xi, Yi, Zi) of the plurality of points on the portion of the body, a plurality of probabilities (Pi) of the presence of the hand, the probabilities respectively being associated with a plurality of predetermined zones of the passenger compartment of the vehicle. The invention also relates to a detection device and an associated system.

The invention discloses a periscopic palm vein recognition method and an intelligent door lock, and the method comprises the steps: when a palm is placed in an area of a glass panel, a near-infrared light source emits infrared rays to the palm of a user; the reflecting mirror intensively guides infrared rays reflected by the palm to the imaging lens group; the imaging lens group optimizes the infrared light signal to obtain an optimized infrared light signal, and focuses the optimized infrared light signal to the image sensor; the image sensor converts the optimized infrared light signal into a digital image signal and sends the digital image signal to the control processing unit; and the control processing unit converts the digital image signal into a palm vein dark fringe image, extracts a palm vein feature value from the palm vein dark fringe image, and controls unlocking if the palm vein feature value exists in the memory. Through the periscopic optical structure design, ultra-short-distance high-quality palm vein imaging is achieved, a user does not need to adjust the hand position and distance deliberately, identity recognition can be completed only by naturally holding the door handle, operation is convenient, and the recognition success rate is high.

This invention provides a navigation menu display method, system, and vehicle, relating to the field of vehicle technology. The navigation menu display method of this invention includes: acquiring the location of a target object; and determining the location of the navigation menu based on the location of the target object. By acquiring the location of the target object and determining the location of the navigation menu based on that location, for example, dividing the center console into left and right display areas, in a left-hand drive vehicle, if the navigation menu is originally located on the left side of the center console, and the passenger wants to adjust the navigation menu to the right side, the location can be adjusted according to the passenger's hand position to facilitate clicking and other operations. This allows users to adjust the navigation menu position according to actual needs, accommodating both the driver and passenger, and improving the user experience.

The invention discloses a driving force feedback distribution control system and method based on six-sense tactile sense, and relates to the field. Comprising an environment sensing module which is used for collecting obstacle information and road information around a vehicle and outputting an environment threat coefficient; the driver state monitoring module is used for detecting the hand position, the grip strength and the sight line direction of a driver and calculating the distraction degree of the driver; the central processing module is used for fusing environment and driver data and generating intensity and mode instructions of each tactile feedback point through a weight distribution algorithm; and the force feedback execution module comprises tactile generators distributed at a plurality of positions of the cockpit, and outputs vibration, pressure or temperature feedback according to instructions. The method has the advantages that the intuitionism and timeliness of danger perception and positioning are improved, the individuation and adaptive optimization of human-computer interaction are realized, and the dimension and robustness of information transmission are enhanced.

A wearable electronic device may include: a camera including a first camera and a second camera; a display; at least one processor comprising processing circuitry; and a memory for storing instructions. When executed by the at least one processor, the instructions can cause the wearable electronic device to: acquire the location of the hand of a user based on at least one first image acquired through the first camera; acquire the gaze point of the user based on at least one second image acquired through the second camera; identify whether the location of the hand corresponds to the gaze point; acquire, based on the location of the hand corresponding to the gaze point, a skeleton including key points related to the hand; and perform an operation related to the hand on the basis of the acquired skeleton.