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71 results about "Articulation points" patented technology
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Gesture recognition method and system based on multi-head attention and spatial-temporal feature fusion
PendingCN119541052Aimprove accuracyCharacter and pattern recognitionNeural architecturesNetwork modelFeature mapping
The invention belongs to the field of gesture recognition, and provides a multi-head attention and spatial-temporal feature fusion-based gesture recognition method and system, and the method comprises the steps: building a neural network model structure through a deep learning frame, importing a gesture sequence of hand articulation points containing time sequence features, and carrying out the recognition of the gesture sequence; and performing feature extraction, position coding and attention calculation, feature fusion and feature mapping on the gesture sequence data by using a proposed gesture recognition algorithm, and outputting a gesture classification result with higher accuracy. A new network topology structure is adopted, and a local and global multi-head attention module is utilized to capture a complex relationship in space and time in two dimensions of time and space, so that the problem that a current model is insufficient in capturing short-term and long-term dependency relationships when coping with complex time sequence data is solved; and the fusion algorithm is more flexible and efficient when processing different types of gesture sequence data.
Owner:BEIJING INFORMATION SCI & TECH UNIV
Construction method of sectional type general potential sliding surface model
ActiveCN119513994AVersatilityEase of useGeometric CADClimate change adaptationClassical mechanicsStressed state
The invention relates to a construction method of a sectional type universal potential sliding surface model, and belongs to the field of traffic slope engineering. According to the method, different shear failure mechanisms and different shear failure characteristics of rock-soil bodies at different parts due to different stress states of all parts of the slope are considered, a three-section type universal potential sliding surface is adopted to simulate the complex failure form of the slope, and the constructed sectional type universal potential sliding surface comprises the possible type of the existing sliding surface and the possible type of the existing sliding surface; the reasonability of the shape of the sliding surface can be ensured under the condition that the concave characteristic of the curve of the sliding surface and the consistency of the motion directions of the connecting points of the adjacent sections of sliding surfaces are required, and the shape of the sectional type universal potential sliding surface can be controlled by a plurality of easily determined parameters simply and conveniently and is generated in a discrete mode; therefore, multiple advantages of universality, accuracy, usability and the like of potential sliding surface determination in actual slope engineering under complex conditions are taken into consideration, and the accuracy of slope stability evaluation is further improved.
Owner:CENT SOUTH UNIV
Human body joint point positioning method, device, equipment and product based on binocular vision
PendingCN119131835Aeasy to understandImage enhancementImage analysisHuman bodyComputer graphics (images)
The embodiment of the invention discloses a human body joint point positioning method and device based on binocular vision, equipment and a product. The method comprises the steps that a first joint point set in a first human body image and a second joint point set in a second human body image are extracted through a posture estimation algorithm; the first human body image and the second human body image are acquired through a binocular camera; matching first articulation points in the first articulation point set with second articulation points in the second articulation point set to obtain a plurality of matching pairs; for each matching pair, constructing a triangulation equation based on the matching pair and a projection matrix of the binocular camera, and solving the triangulation equation to obtain a three-dimensional coordinate of the matching pair; the projection matrix is constructed through an internal parameter matrix and an external parameter matrix of the binocular camera; and determining a human body joint point positioning result according to the three-dimensional coordinates of each matching pair. According to the technical scheme, the first articulation point in the first human body image is matched with the second articulation point in the second human body image, so that the articulation point positioning efficiency and accuracy are improved.
Owner:CHINA ACAD OF SAFETY SCI & TECH
Sign language recognition using parameter keypoints
A system captures image data that includes a person executing a sign of a sign language. Keypoints are extracted from the image data. The keypoints include locations on a hand of the person, an arm of the person, a trunk of the person and a face of the person. The keypoints are provided to a parameter analyzer for detecting characteristics of the sign. The characteristics of the sign includes a handshape, a palm orientation, an articulation point and a movement. A description of the sign is generated from an output of the parameter analyzer. The description of the sign is filtered and aggregated, thereby creating a condensed description of the sign. A database of known signs is queried with the condensed description using a dynamic time warping algorithm. A word is retrieved from the database that is associated with the sign.
Owner:LENOVO (SINGAPORE) PTE LTD
Method, device and equipment for detecting hinged angle of hinged vehicle and medium
PendingCN120576698AWave based measurement systemsUsing wave/particle radiation meansVehicle framePoint cloud
The invention discloses a hinged vehicle hinging angle detection method, device and equipment and a medium, and relates to the field of auxiliary driving and unmanned driving. The hinged vehicle hinging angle detection method comprises the steps that forward radar point cloud of a current hinged vehicle is acquired; filtering the forward radar point cloud according to the point cloud cutting angle range and / or a prior acquisition distance of the front frame object to be identified to obtain a target point cloud to be processed matched with the front frame object to be identified; according to the type of the to-be-identified front frame object and the target to-be-processed point cloud, determining hinge angle calculation associated data; and determining an included angle between front and rear frames of the articulated vehicle according to the articulated angle calculation associated data and the angle calculation error. According to the technical scheme of the embodiment of the invention, installation of a sensor at a hinge point can be omitted, the cost is reduced, and the hinge angle detection effect is improved.
Owner:GUANGXI LIUGONG METATHINGS TECHNOLOGY CO LTD +1
Synchronous driving method of VR virtual character and VR equipment
PendingCN119414949Areduce data volumeImprove latencyInput/output for user-computer interactionVideo gamesEngineeringComputer vision
The invention provides a synchronous driving method of a VR virtual character and VR equipment, which are used for optimizing network delay and improving a driving effect. Comprising the steps that based on received multiple poses, sent by second VR equipment, of all target articulation points of a second user within a specified duration, the poses of all the target articulation points at other moments within the specified duration are predicted, multiple predicted poses of all the target articulation points are obtained, and the number of the target articulation points is smaller than the preset number of all the articulation points; for any moment, determining a to-be-predicted joint point of a second user at any moment by utilizing the distance between the first virtual character and the second virtual character obtained according to the pose of the specified joint point of the first user at the moment and the pose of the specified joint point of the second user at the moment; and predicting the pose of the to-be-predicted joint point by using each pose of the target joint point to obtain the pose of the to-be-predicted joint point, and driving the second virtual character by using the pose of each joint point.
Owner:JUHAOKAN TECH CO LTD
Three-dimensional point cloud processing method based on skeleton articulation point attention convolution
The invention discloses a three-dimensional point cloud processing method based on skeleton articulation point attention convolution, belongs to the technical field of three-dimensional computer vision, and aims to solve the technical problems that traditional convolution operation is difficult to adapt to point cloud disorder and existing dynamic convolution is high in memory consumption. The method is realized through the following scheme: pre-defining a learnable skeleton joint point system in a three-dimensional space, designing a multi-layer perceptron comprising position codes to calculate attention weights of point cloud points and skeleton nodes, and fusing preset node weights to generate a spatial self-adaptive dynamic convolution kernel; introducing a weight consistency constraint to guarantee the continuity of a physical space convolution kernel; a feature dimension reduction strategy is adopted to reduce the memory consumption by 64%, the accuracy rate of a ModelNet40 classification task reaches 93.9%, the accuracy rate of an S3DIS scene segmentation task reaches 70.5% mIoU, and the method can be applied to scenes of automatic driving laser radar real-time processing, industrial part three-dimensional defect detection and the like.
Owner:SHANXI UNIV OF FINANCE & ECONOMICS
Multi-angle connecting piece for steel members
ActiveCN222456403UImprove structural stabilityBuilding insulationsMechanical engineeringArticulation points
The utility model discloses a steel member multi-angle connecting piece which comprises a twelve-prism box body, an I-shaped tube sleeve is fixedly installed in the middle of the twelve-prism box body in a penetrating mode, a stress plate is fixedly connected between the interior of the twelve-prism box body and the I-shaped tube sleeve, twelve faces are arranged on the periphery of the twelve-prism box body, and the twelve faces are connected with the I-shaped tube sleeve. A stress plate is fixedly installed on each face, and fixing locking holes are formed in the positions, located on the two sides of the stress plates, of each face of the twelve-prism box body. According to the steel member multi-angle connecting piece, the requirement for connection of multiple angles can be met, the interior of the twelve-prism box body is fixedly connected with the I-shaped sleeve by unfolding the multiple stress plates, and therefore force in one side can be conducted to multiple faces to be borne according to the conductivity of the force, and the steel member multi-angle connecting piece is simple in structure and convenient to use. In this way, the stability of the whole structure is better, after the transverse beam I-steel is installed, the connecting points of the screws and the nuts are located in the twelve-prism box body and are in a sealed state, and the connecting points can be prevented from being rusted and corroded.
Owner:ZAOZHUANG HONGDA WEIYE JINSHUJIEGOU MFG CO LTD
Z-shaped hinge point of sales system
PendingCN121586824ADigital data processing detailsCash registersMechanical engineeringArticulation points
A point of sale (POS) device includes a stand and a monitor. The bracket includes a base and a bracket pivotably connected to the base. The bracket includes a hook portion and a fastener hole. The monitor is configured to rest on the hook. The monitor includes another fastener hole configured to align with the fastener hole of the bracket when the monitor rests on the hook.
Owner:ELO TOUCH SOLUTIONS INC(US)
A freely turning articulated hinge dragon
The present application relates to a kind of free steering articulated dragon, it includes support frame, articulated dragon body, support frame includes base, it is equipped with universal wheel, base has first articulation point and second articulation point, articulated dragon body has third articulation point and fourth articulation point, wherein, first articulation point is articulated with third articulation point, second articulation point is articulated with fourth articulation point by lifting platform, and the distance of first articulation point to fourth articulation point and the distance of second articulation point to fourth articulation point are equal, lifting platform has fifth articulation point, base is also equipped with hydraulic cylinder, the piston rod of hydraulic cylinder is articulated with fifth articulation point, piston rod is equipped with mark plate, mark plate is marked with angle scale, lifting platform is located in the side of mark plate.The articulated dragon of the technical scheme can be moved and angle adjustment under the premise of ensuring, realize the accurate adjustment of angle, and ensure that the adjustment process is easy and labor-saving, simultaneously make installation and subsequent operation efficiency can be significantly improved.
Owner:ZHEJIANG ZHENGHAO INTELLIGENT MFG CO LTD
Multipart pipe joint
The invention relates to a multipart pipe joint (10) having a centre piece (16) on which joint parts (18, 20) are received which are pivotable relative thereto and which are rotationally fixed to the centre piece (16) at articulation points (22, 24). The articulation points (22, 24) of the joint parts (18, 20) on the centre piece (16) also represent articulation points (22, 24) for transmission elements (42) which extend axially along an inner wall (34) of the centre piece (16). The articulation points (22, 24) forming articulation axes are arranged in an axial offset (25) to each other. Furthermore, the invention relates to the use of the multipart pipe joint (10) in an aircraft.
Owner:PFW AEROSPACE
Adjustable copper wiring terminal
ActiveCN223743913UCoupling device detailsMulticonductor cable end piecesCopper-wiringMechanical engineering
The utility model discloses an adjustable copper wiring terminal which comprises a conductive member and a wiring member, the wiring member is provided with a first connecting part, the conductive member is provided with two second connecting parts and abuts against two ends of the first connecting part, two ends of the first connecting part are provided with first springs and abut against the second connecting parts, and the second connecting parts are provided with second springs. The first connecting part is hinged to the second connecting part, a plurality of fixing grooves at equal intervals are evenly distributed in the two ends of the first connecting part with the hinge point as the axis, a fixing block capable of ascending and descending is arranged at one end of the second connecting part, and a second spring is arranged in the second connecting part. According to the utility model, only the wiring piece needs to be pushed to form an included angle between the first connecting part and the second connecting part, the outgoing position of the wire is adjusted, the wire is prevented from being in a bent state for a long time, and the product has the advantages of adjustable bending angle, prolonged service life of the wire, locking function and the like by embedding the first spring and the fixing block into the fixing groove and locking the bending angle.
Owner:YUEQING SHANGJIA ELECTRIC POWER TECH
Finger joint point spatial position estimation method and device and head-mounted display equipment
PendingCN121213646AInput/output for user-computer interactionImage enhancementComputer graphics (images)Radiology
The invention discloses a finger joint point spatial position estimation method, a finger joint point spatial position estimation device and head-mounted display equipment. The method comprises the following steps: performing hand recognition on an image acquired by a depth camera through a palm region detection model, and if the image has a hand region, marking the hand region from the image to obtain a hand region image; correcting the hand region image to obtain a distortionless hand region image; identifying the pixel coordinates of the articulation points in the distortionless hand region image and the relative distance of each articulation point through an articulation point detection model; and according to the pixel coordinates of the joint points and the relative distance, calculating through a preset objective function to obtain the absolute distance of the joint points. According to the invention, the calculation amount in the 3D hand joint point estimation process can be reduced, and the technical effects of meeting the high real-time requirement in AR / VR application are achieved.
Owner:HANGZHOU QIUGUOJIHUA TECHNOLOGY CO LTD
A method, system, and storage medium for interpolating and connecting S-shaped velocity curves.
ActiveCN121900314BAchieve accurate interpolation compensationEliminate speed fluctuationsNumerical controlTime domainClassical mechanics
This invention relates to the field of CNC machining and motion control technology, specifically to a method, system, and storage medium for interpolation connection processing of S-shaped speed curves. This method addresses the speed fluctuations and uneven machining marks caused by the asynchronous connection points between segments and the interpolation cycle in existing global S-shaped speed planning by proposing a reverse extension compensation mechanism. The steps include: when entering a new curve segment for interpolation, if there is residual motion and the motion stage is continuous, the current motion stage is extended backward by one interpolation cycle in the time domain; by solving the displacement equation, the historical time point corresponding to the residual motion in the current stage is accurately calculated; and the system's time state is corrected accordingly, thereby achieving smooth and accurate connection between segments. This invention effectively eliminates the deviation between interpolation commands and speed planning, solves the speed fluctuation problem caused by toolpath deflection, makes the tool marks more uniform, and improves machining quality.
Owner:SUZHOU MOU XUN INTELLIGENT TECH CO LTD
Casting cleaning equipment
The utility model relates to casting cleaning equipment, and belongs to the technical field of improvement of casting production equipment. Comprising a base and a rotating table A which is installed on the base and used for driving a lower hinge installation base to rotate, a first joint arm and a first joint assembly are jointly hinged to the lower hinge installation base at a first hinge point, and the first joint assembly and the telescopic end of a first oil cylinder are hinged to a second hinge point. The first joint assembly and the supporting rod are hinged to a third hinge point, the first joint arm and the supporting rod are arranged in parallel, the top end of the supporting rod is hinged to the second joint arm, and the third joint assembly is hinged to the front end of the second joint arm. The first joint arm, the second joint arm and the second joint assembly are jointly hinged to a fourth hinge point, the second joint assembly and the first connecting rod are hinged to a fifth hinge point, and the second joint assembly and the second connecting rod are hinged to a sixth hinge point. The pneumatic hammer has the advantages that the clamping jaw assembly and the pneumatic hammer are used in a combined mode, and multiple purposes are achieved.
Owner:SHANDONG MICROCRYSTALLINE AUTOMATION CO LTD
Cross-path segment interpolation method, system and device based on time domain extension and medium
The invention relates to the technical field of numerical control machining and motion control, in particular to a cross-path-segment interpolation method, system and device based on time domain expansion and a medium. The current effective stage of a speed curve is reversely prolonged by an interpolation period, and backtracking calculation is carried out based on the interpolation residual period and the residual motion amount; the time point corresponding to the residual motion amount in the current stage is accurately calculated, smooth transition of intersegment connection points is achieved, the actual step is made to be consistent with the speed plan by further establishing a motion amount balance equation, and particularly accurate matching is achieved at the connection points. According to the method, on the premise that the method is not limited to a constant-speed section, multi-section path accurate interpolation of a cross-path section is achieved, the actual movement track is highly consistent with the speed planning height, microcosmic speed fluctuation caused by discontinuous transition between the sections is eliminated, the tool path is smoother, and therefore more uniform tool patterns are obtained on the machined surface, and the machining precision is improved. And the surface smoothness of the workpiece is obviously improved.
Owner:SUZHOU MOU XUN INTELLIGENT TECH CO LTD
A tensegrity driven robot
The application provides a kind of tension integral driving robot, belongs to robot technical field;Including carrying module, carrying module at least installs a pair of tension structure, each tension structure is connected with foot, each pair of tension structure has a common articulation point on carrying module, tension structure includes pressure piece and tension piece, pressure piece includes the first pressure piece and the second pressure piece that intersect to present X shape, the both ends of first pressure piece are first articulation point and fourth articulation point respectively, the both ends of second pressure piece are second articulation point and third articulation point respectively;First articulation point and third articulation point, third articulation point and fourth articulation point and fourth articulation point and second articulation point are all connected with tension piece;Friction force that foot is subjected to in different directions is different when advancing;The application controls the distance between feet, utilizes the front and rear different direction friction force formed by foot and ground to advance, and can realize multiple gaits, simple structure, light quality, good impact resistance and high material utilization.
Owner:UNIV OF SCI & TECH BEIJING
A method for calculating dynamic stability limit of a tractor with folded and twisted waist
This invention proposes a method for calculating the dynamic stability limit of articulated tractors under cross slope conditions, aiming to accurately assess the lateral stability of articulated tractors under complex terrain and dynamic operating conditions. This method first obtains parameters such as the tractor's geometry, mass, and dynamic acceleration; then, a spatial attitude model is established based on the rear body, transforming the articulation and torsional axes in the local coordinate system of the rear body to the global space, and causing the front body to move relative to the spatial articulation and torsional axes; the spatial coordinates of the four wheel points, articulation points, and centers of mass are calculated, constructing a four-wheel horizontal projection support quadrilateral, and obtaining the dynamic equivalent projection points based on longitudinal and lateral accelerations; by determining the positional relationship of the projection points relative to the left and right rollover boundaries, the critical stability angle of the cross slope is determined. This invention can be used to assess the lateral rollover risk of articulated tractors under different articulation, torsional, terrain undulation, and acceleration / deceleration conditions.
Owner:CHINA AGRI UNIV
Multifunctional acetylene cylinder anti-toppling device
The utility model discloses a multifunctional acetylene cylinder anti-toppling device, relates to the technical field of anti-toppling, and aims to solve the problems that after a cylinder body is placed, chain locking action needs to be additionally executed, and if operation omission occurs, fixing failure is possibly caused, and toppling accidents are caused. A protruding block is arranged on the inner wall of the supporting rod, a limiting plate is hinged to the protruding block, the limiting plate is an arc-shaped piece, and the limiting plate is connected with the connecting piece through a fixing mechanism. When a bottle body is placed on the placing plate, the dead weight of the bottle body pushes the inner wall of the limiting plate, the limiting plate is forced to rotate around the hinge point of the convex block, the sliding piece is synchronously driven to slide along the connecting piece, when the sliding piece moves to the position below the clamping piece, the clamping pin is squeezed by the top face of the connecting piece and then retracts into the sliding groove, and after the sliding piece reaches the position of the threaded hole, the spring instantly releases elastic force. The isosceles trapezoid clamping pin is accurately jacked into the threaded hole, the bottle body is instantly locked, and secondary operation of workers is not needed in the whole process.
Owner:XINXIANG SAFETY CYLINDER CO LTD
Suspension system for vehicle and vehicle
PendingCN121989607Areasonable arrangementFlexible configurationResilient suspensionsPivoted suspension armsVehicle frameControl arm
The invention discloses a suspension system for a vehicle and the vehicle, and the suspension system comprises a wheel frame which is assembled to a wheel; the toe-in connecting rod is hinged to the wheel frame through a first hinge point and is hinged to the frame, the auxiliary frame or the steering engine through a second hinge point; one end of the integral connecting rod is hinged to the wheel frame; the lower swing arm is hinged to the wheel frame through a third hinge point, is hinged to the frame or the auxiliary frame through a fourth hinge point and a fifth hinge point and is hinged to the other end of the integral connecting rod; and a spring and damper supported and connected to the vehicle body by a toe-in link near and rearward of the lower swing arm on a first virtual straight line passing through the first hinge point and the second hinge point, the fourth hinge point being closer to the toe-in link than the fifth hinge point, and the fifth hinge point being closer to the toe-in link than the fifth hinge point. The distance between the first hinge point and the second hinge point is larger than the distance between the third hinge point and the fourth hinge point. The present application is particularly applicable to electric or hybrid vehicles having an ERAD and a rear wheel steering engine.
Owner:VOLVO CAR CORP
Flap fitting, and piece of furniture comprising a flap fitting
PCT designated stageWO2026131959A1Building braking devicesPin hingesClassical mechanicsMechanical engineering
Owner:HETTICH ONI
Hand joint point detection method and electronic equipment
PendingCN119580341AGuaranteed accuracyimprove accuracyBiometric pattern recognitionHand partsRadiology
The invention provides a hand articulation point detection method and electronic equipment, and aims to improve the accuracy of articulation point detection. Comprising the following steps: obtaining the position of a hand region in any hand image according to image position coordinates of each joint point belonging to a palm region in a previous frame of hand image of any hand image; cutting any frame of hand image according to the position of the hand region to obtain a hand region image; performing joint point detection on the hand region image by using a hand joint point detection model to obtain image position coordinates of each hand joint point; based on an image position coordinate of a first joint point specified in the hand area image and an image position coordinate of a first joint point in each target hand image, determining a motion state of a hand in the hand area image, each target hand image being a specified frame number of hand images before any hand image; and obtaining a target position coordinate of each hand joint point in any hand image based on the motion state of the hand.
Owner:HISENSE ELECTRONICS TECH SHENZHEN CO LTD
Parallel robotic arm, parallel robot and plant topping equipment
ActiveCN118721155BSmall structureImprove work efficiencyProgramme-controlled manipulatorCutting implementsAlgorithmElectric machinery
The present application provides a parallel robot arm, a robot and a plant topping device, which belongs to the technical field of industrial robots, and includes a frame, two articulated rod groups and an end effector; the two articulated rod groups are arranged in parallel and the motion ranges of the two articulated rod groups are in the same plane, one end of the two articulated rod groups is connected to the driving end of the corresponding driving motor, and the other end is hinged to the top of the end effector; the hinge point of the other end of the two articulated rod groups and the top of the end effector is the same hinge point. The parallel arrangement of the two articulated rod groups in the same motion plane can effectively reduce the structural volume, so that multiple groups are arranged in multiple parallel planes, and more parallel robot arms are arranged within a certain working range, which greatly improves the working efficiency. At the same time, the hinge points of the two articulated rod groups and the end effector are the same hinge point, so that when the articulated rod group moves with the end effector, the end effector naturally droops under the action of gravity to maintain the working state.
Owner:ROBOT TIME BEIJING TECH CO LTD
Pressing device for vibration operation workpiece
ActiveCN223889737UGrinding feed controlGrinding work supportsMechanical engineeringArticulation points
The utility model relates to the technical field of vibration machining, in particular to a pressing device for a vibration operation workpiece, which comprises a driving mechanism, a pressing arm and a pressing beam part, the driving mechanism is erected and fixed above the working table, one end of the pressing arm is hinged to the rear end of the driving mechanism, the other end of the pressing arm is hinged to the driving end of the driving mechanism, and the other end of the pressing arm is further hinged to the beam pressing part; the driving mechanism drives the pressing arm to swing up and down by taking the rear-end hinge point as a fulcrum; when the pressing arm swings downwards, the pressing beam part applies pressure to the vibration operation workpiece; the driving mechanism is provided with an adjusting assembly, the driving mechanism is electrically connected with the pressing height detection system, and the driving mechanism adjusts the adjusting assembly according to the detection result of the pressing height detection system to control the downward swing stroke of the pressing arm. The problems that an existing pressing beam is low in working efficiency and prone to loosening due to vibration force are solved.
Owner:VEEGOO TECH CO LTD
Stepless amplitude-variable reciprocating driving mechanism and design method thereof, fascia gun
The present application relates to fascia gun technical field, disclose a kind of stepless amplitude reciprocating drive mechanism and its design method, fascia gun, to solve the problem of low efficiency existing in prior art design method, stepless amplitude reciprocating drive mechanism includes the slider-crank mechanism by eccentric wheel, output rod, connecting rod and slider are sequentially articulated and adjustment rod, the swing end of adjustment rod is articulated on output rod, the position of the adjustment end of adjustment rod is adjustable, and after adjustment, the swing range of second articulation point is limited, method includes: determining the first distance between first articulation point and second articulation point, the second distance between second articulation point and third articulation point, the third distance between third articulation point and fourth articulation point and the functional relationship between the position of fifth articulation point and slider amplitude, and the design of stepless amplitude reciprocating drive mechanism is carried out based on functional relationship.The present application improves the design efficiency and accuracy of stepless amplitude reciprocating drive mechanism, and is suitable for fascia gun product.
Owner:SICHUAN QIANLI BEOKA MEDICAL TECHNOLOGY INC
Cleaning device
The utility model relates to the technical field of household appliances, and discloses a cleaning device which comprises a main machine, a cleaning device and a control device. The adapter assembly comprises an adapter main body, the adapter main body is hinged to the upper shell, and the hinged point of the adapter main body and the upper shell is close to or located at the gravity center of the host; the handle assembly is detachably connected with the main machine and comprises a main body structure, the main body structure is provided with a mounting sleeve, when the handle assembly is connected to the main machine, the adapter assembly is arranged in the mounting sleeve, and when the handle assembly leaves the main machine, the mounting sleeve is suitable for fixing the first end of the connecting rod, and the adapter assembly is suitable for fixing the second end of the connecting rod; the connecting rod is a fixed rod or a telescopic rod. As the hinge point of the adapter main body and the upper shell is close to or located at the gravity center of the host, the front end of the host can be prevented from being warped when a user presses the handle assembly downwards after the connecting rod is installed.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Gesture data labeling optimization method and electronic equipment
PendingCN119515958AImprove annotation qualityDiversity guaranteedImage enhancementImage analysisData setMedicine
The invention provides an annotation optimization method of gesture data and electronic equipment, which are used for improving the annotation quality of the gesture data. Comprising the steps that camera coordinates of all hand joint points in all hand images in any gesture sample are utilized to obtain all target hand images of all hand joint points; for any hand joint point, according to the image position coordinates of the hand joint point, obtaining the optimized world position coordinates of the hand joint point and the re-projection error of the hand joint point; updating an initial world coordinate of each hand joint point in the plurality of gesture samples by using the optimized world position coordinate of each hand joint point, and training a gesture estimation model by using a target gesture sample obtained by screening the plurality of gesture samples by using a re-projection error of each hand joint point and an initial training data set; and returning to use the camera coordinates of the hand articulation points in the hand images in any gesture sample until the training frequency is greater than the specified frequency, and determining the plurality of gesture samples as the optimized labeled gesture data.
Owner:HISENSE ELECTRONICS TECH SHENZHEN CO LTD
Method, device and equipment for detecting hinged angle of hinged vehicle and medium
The invention discloses a hinged vehicle hinging angle detection method, device and equipment and a medium, and relates to the field of auxiliary driving and unmanned driving. The hinged vehicle hinging angle detection method comprises the following steps: identifying pixel coordinates of key feature points in an image collected by a forward camera of a current hinged vehicle; determining a target rotation translation matrix according to the key feature pixel point calibration coordinates and the key feature point pixel coordinates; and determining an included angle between front and rear frames of the hinged vehicle according to the target rotation translation matrix and the angle calculation error. According to the technical scheme, installation of a sensor at a hinge point can be omitted, the cost is reduced, and the detection effect of the hinge angle is improved.
Owner:GUANGXI LIUGONG METATHINGS TECHNOLOGY CO LTD +1
Central venous pressure measuring device
The utility model discloses a central venous pressure measuring device which comprises a measuring scale, scale marks and a fixing groove penetrating up and down are arranged on one end face of the measuring scale, a pressure measuring tube is arranged in the fixing groove, a three-way valve is arranged at the bottom end of the pressure measuring tube, an annular buckle is arranged on one side of the base, and the measuring scale is arranged on the other side of the base. The upper end of the measuring scale is hinged to the base, the lower end of the base is provided with a swing groove with the hinge point of the upper end as the circle center, the lower end of the measuring scale is provided with a screw, the screw is inserted into the swing groove in a swing mode, the screw is further in threaded connection with a nut blocking the outer side of the base, and the measuring scale and the base can be locked by screwing the nut; the upper end of the measuring scale is hinged to the base, and the swing groove in the lower end of the measuring scale takes the hinge point of the upper end as the circle center, so that the measuring scale can adaptively swing under the action of gravity when the nut is loosened, the measuring scale can be kept in a vertical state no matter whether an infusion rod used for fixing the device is in a vertical state or not, and the accuracy of a measured value is further ensured.
Owner:THE 923RD HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
Joint point detection dynamic model algorithm for racing boat
The invention relates to the technical field of motion detection, and discloses a joint point detection dynamic model algorithm oriented to boat racing motion. According to the algorithm, firstly, a racing boat motion video is collected to generate a multi-view motion frame, and joint point candidate areas of a key motion stage are determined through processing of a spatial-temporal feature fusion algorithm; performing feature enhancement on the candidate region to generate a high-dimensional motion feature map, and marking a potential joint point dynamic trajectory in combination with an attention mechanism and dynamic time warping; detecting a region of interest based on the generated joint points; analyzing the gradient change of the motion vector of the region, and evaluating whether the spatial displacement fluctuation of the articulation point accords with the motion law or not; analyzing the relevance between skeleton and muscle movement in the region, and evaluating whether the collaborative coupling strength is in a normal range; and judging whether model parameter calibration processing needs to be carried out in real time or not according to the evaluation result. The algorithm can accurately capture the dynamic change of the joint, identify the abnormal motion, and improve the adaptability and accuracy of detection.
Owner:WUHAN SPORTS UNIV