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152results about How to "Reduce jitter" patented technology

Cluster unmanned aerial vehicle communication method based on multi-dimensional key encryption and decryption algorithm

The invention relates to a cluster unmanned aerial vehicle communication method based on a multi-dimensional key encryption and decryption algorithm. The method comprises the following steps: acquiring unique identifiers of an unmanned aerial vehicle array and marshalling; extracting a single-user key of the unmanned aerial vehicle in the target group, and obtaining a key element by using a multi-dimensional key algorithm; generating an action instruction according to a preset coding rule, encrypting the action instruction, and combining the action configuration classification area to obtain a remote control instruction data packet; transmitting the remote control instruction data packet through a broadcasting mechanism, and receiving the remote control instruction data packet by the unmanned aerial vehicle through a monitoring mechanism; filtering and analyzing the received data packet to obtain a configuration data unit matched with the unmanned aerial vehicle marshalling; extracting a key element based on the configuration data unit, and calculating to obtain an original key; decrypting the action element encryption value to restore the action instruction, and executing the instruction after verification; the execution process of the action instruction is monitored in real time, and abnormal conditions are processed; the cluster unmanned aerial vehicle communication method using multi-dimensional key encryption and decryption is realized.
Owner:SHANGHAI USKY TECH CO LTD

Power line anti-pulling mechanism and industrial six-axis robot

This invention discloses a power cord anti-pull mechanism and an industrial six-axis robot, belonging to the field of industrial robot technology. The power cord anti-pull mechanism is applied to equipment requiring electrical power for operation. It includes a power cord, a power supply box, and an anti-pull device. One end of the power cord is equipped with a power plug, and the other end is used to connect to the equipment requiring electrical power. A power socket is provided on one side of the power supply box, into which the power plug can be inserted to connect to the power supply. The anti-pull device is disposed on the power supply box and includes a fastening device and a power device. The fastening device is used to secure the power plug after it is inserted into the power socket, preventing pulling between the power cord and the power socket. The power device provides power to the fastening device to secure the power plug. The power cord anti-pull mechanism can prevent problems such as poor contact or disconnection between the power cord and the power supply box during the operation of the industrial six-axis robot.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Sign language translation method and device based on large language model

PendingCN121768069AReduce computing power requirementsEffective filteringCharacter and pattern recognitionBiological modelsPattern recognitionFrame (artificial intelligence)
The invention belongs to the crossing field of artificial intelligence and barrier-free assistance technology, and particularly discloses a sign language translation method and device based on a large language model.The method is applied to a terminal and comprises the steps that key points are extracted from sign language video frames; based on the coordinates, types and global indexes of the key points in the sign language video frames, obtaining fusion features through feature fusion; based on the fusion features corresponding to the sign language video frames in the frame window, time sequence modeling and classification are carried out, and a word prediction result of the frame window is obtained; a sliding window voting and deduplication mode is adopted, the candidate word sequence is preprocessed, a preprocessed word sequence is obtained, and the candidate word sequence is formed by connecting word prediction results of all frame windows in series according to a time sequence; based on the preprocessed word sequence, word error correction and statement generation are carried out by calling a large language model, and a sign language translation result is generated. According to the invention, sign language video translation can be realized for the terminal, and the accuracy and fluency of the translation result can be guaranteed.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Mechanical arm obstacle avoidance path planning method and device based on multi-strategy fusion improved RRT* algorithm and storage medium

The invention belongs to the technical field of path planning and robot motion planning, and particularly relates to a multi-strategy fusion improved RRT * sampling planning method and device and a storage medium, and the method comprises the steps: constructing a dual-search tree through a starting point and a target point in a three-dimensional working space, and selecting a to-be-expanded search tree through a random mode; halton-Bridge mixed sampling is adopted to generate sampling points, so that the global coverage uniformity is improved, and the narrow channel sampling capability is enhanced; calculating the dynamic step length of the exponential decay based on the local obstacle proportion; adopting a hierarchical guidance expansion strategy, preferentially expanding towards a target, introducing an improved artificial potential field to guide expansion when the expansion fails, and taking the bottom with random expansion; performing RRT * neighborhood father node reselection and reconnection optimization on the new node; greedy pruning, self-adaptive interpolation and cubic B-spline smoothing are carried out on a path after the double trees are connected, and an executable smoothing track is output; according to the scheme, planning efficiency, success rate and path quality are improved.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Safety limiting device for pull rope oil cylinder

The invention belongs to the technical field of fluid braking equipment, and particularly relates to a safety limiting device for a pull rope oil cylinder, which comprises a fixed frame, a sliding base and a hydraulic oil cylinder, the device further comprises a stable transmission mechanism. On one hand, in the stretching and retracting process of the hydraulic oil cylinder, the sliding base is driven to move in the mode that the fixed pulley pushes the transmission steel cable, and in the moving process, due to the fact that the fixed pulley and the transmission steel cable are symmetrically distributed on the upper side and the lower side of the hydraulic oil cylinder, tension of the transmission steel cable on a connecting piece is more balanced; on the other hand, due to the arrangement of the fixed pulley and the sliding base, under the condition that the stroke of the sliding base is fixed, the stroke of the hydraulic oil cylinder is halved, the requirement for the rigidity of the hydraulic oil cylinder is lowered, and the bending probability of the hydraulic oil cylinder is lowered; the stability of the hydraulic oil cylinder for driving the sliding base to move is further enhanced.
Owner:SHANDONG WEIMENG ENG MASCH CO LTD

Feeding device for sensor assembly

The utility model discloses a feeding device for sensor assembly. The feeding device comprises a bottom frame, a vertical plate and a movable base. A mounting cylinder is arranged at the top of the bottom frame, an O-shaped ring vibration disc is arranged in the mounting cylinder, a material supplementing frame is arranged on one side of the O-shaped ring vibration disc, and a channel is formed between the material supplementing frame and the O-shaped ring vibration disc; the feeding mechanism is driven to quickly move in the horizontal direction and the vertical direction through cooperative work of a plurality of air cylinders, so that O-shaped rings are quickly grabbed and transferred by the negative pressure suction device, and the feeding time is greatly shortened; o-shaped rings are automatically and orderly arranged through the O-shaped ring vibration disc, the O-shaped rings are supplemented in time in cooperation with the material supplementing frame, and continuous supply of the O-shaped rings is guaranteed; the feeding precision is improved through positioning formed by a positioning seat, a positioning block, a telescopic rod and a spring; the feeding process is monitored in real time through the scanner, problems are found and fed back and adjusted in time, and the operation reliability of the whole feeding device is further improved.
Owner:SUZHOU YUANQIAN ELECTRONICS TECH CO LTD

A device and method for in-situ deformation of micro-nano samples in an electron microscope

The application discloses a device and method for bending and deforming micro-nano samples in-situ in an electron microscope, and belongs to the field of scanning / transmission electron microscope accessories and micro-nano material mechanical property measurement research. The device comprises four parts, namely a supporting part, a driving part, a bending loading part and a sample stage part. One end of the nano material is fixed to a suspended part at the front end of the sample stage, and the other end is a free end. The free end of the nano material is pushed by the bending loading part driven by the heating and bending bimetallic strip, so that the nano material achieves the bending and deformation effect. The application separates and fixes the bimetallic strip and the sample, solves the problems of poor mechanical stability and easy movement of the sample in the deformation process of the in-situ bending nano material, improves the stability of the fixed sample and in-situ imaging, realizes the bending and deformation of the sample, and simultaneously observes the structural evolution of the material in the deformation process. While realizing the bending and deformation of single / multiple nano wire shafts, the structural evolution of the material in the deformation process is observed in-situ.
Owner:BEIJING UNIV OF TECH

Data transmission method and system of solid waste sorting equipment, terminal and storage medium

The present application relates to the technical field of data transmission, and specifically provides a data transmission method and system for solid waste sorting equipment, a terminal and a storage medium, comprising: adding basic classification marks and dynamic priority marks to data packets according to the function types of sorting data, and dividing the data into synchronous control flow, real-time event flow, process awareness flow and background management flow; a data source end acquires link state information before sending, and adaptively adjusts the dynamic priority of the real-time event flow; a network switch performs mixed scheduling transmission on the data packets based on time-aware shaping, credit shaping and preemption mechanism, wherein the preemption of low-priority queues is only allowed when the data packets of the highest-priority sub-queue carry the highest dynamic priority mark. Through the cooperative mechanism of basic classification and dynamic priority, the present application realizes fine classification transmission of heterogeneous data flow, solves the problem that key instructions are easily affected by network congestion, and effectively reduces transmission delay and jitter.
Owner:BINZHOU BANGBAO CHEM CO LTD

A type of edge-binding and edge-cutting sewing machine

This utility model provides an overlock and trimming sewing machine, belonging to the field of sewing machine technology. It solves the technical problems of inconvenient installation of the overlock device in existing overlock and trimming sewing machines. This overlock and trimming sewing machine includes a table, a machine head, and an overlock device. A needle plate is fixed on the table, and a cutter is provided on the machine head, aligned with the inner edge of the needle plate. A fixing plate is located on the inner side of the needle plate on the table, and both the front and rear sides of the fixing plate are fixed to the table with screws. A bracket is fixed on the fixing plate, and the overlock device is mounted on the bracket. A notch is provided on the side of the fixing plate opposite to the cutter, and a feed hopper is fixedly installed on the table directly below the notch. This utility model has the advantages of convenient and secure installation of the overlock device.
Owner:TAIZHOU ZHUOJIE SEWING TECHNOLOGY CO LTD

Rotary adjustable curling iron

ActiveCN224268550UAchieve precise rotation controlquality improvementCurling devicesCurlingGear wheel
The utility model relates to the technical field of hairdressing equipment, in particular to a rotary adjustable hair curling rod which comprises a shell, a hair curling assembly, a rotary shifting piece and an upper limiting block. The gear set of the rotary base is meshed with the driven gear, and the second gear teeth of the rotary shifting piece are meshed with the gear set, so that accurate rotation control over the curling iron is achieved, the curling angle and the curling direction can be adjusted more flexibly and stably, the curling effect and the user experience are improved, and the practicability is high. The heating piece is guided through the first moving guide rail and the second moving guide rail, the stability and accuracy of the heating piece in the hair curling process are guaranteed, the problems that a traditional hair curling rod is uneven in heating and unsmooth in hair curling are solved, the hair curling quality is effectively improved, and the upper limiting block and the top cover improve the structural stability of the hair curling rod and improve the hair curling efficiency. And in addition, the use safety is improved, the heating piece is prevented from accidentally falling off or shifting, and safer and more reliable use experience is provided for a user.
Owner:深圳玖柒创欣科技有限公司

Intelligent charging and discharging band main and standby power supply switching band double-way output system

PendingCN122225645Asmooth switchingSuppress repeated switchingBatteries circuit arrangementsElectric power
The application belongs to the technical field of power management and battery power supply system, and specifically relates to an intelligent charging and discharging system with main and standby power supply switching and double-way output, which comprises an external power input module, a charging management module and an external power output module; the external power input module is used for connecting an external 5V power supply and comprises an anti-reverse connection / anti-backfill unit and an input filter unit; the charging management module is connected with the external power input module, is used for performing constant current / constant voltage charging on a single lithium battery, and provides a charging state indication output and a temperature detection input; through the cooperative design of external power effective determination, external power priority strategy and output retention capacitor / filtering, repeated switching caused by plug-in transient is inhibited, so that the drop and jitter of the system main power bus are reduced; the system main power bus does not have repeated jitter switching or the drop duration is significantly shortened when the external 5V is plugged in according to the engineering test caliber.
Owner:SHANGHAI LINGZE INFORMATION TECH CO LTD

Mobile maintenance vehicle rear-end collision risk real-time early warning method and system based on front time window

The invention provides a mobile maintenance vehicle rear-end collision risk real-time early warning method and system based on a front time window, and relates to the technical field of intelligent traffic. The method comprises the steps of integrating sensors such as a GNSS / IMU, a millimeter wave radar and a binocular camera on a mobile maintenance vehicle, obtaining information such as the relative distance, the speed, the acceleration and the lane position of a backward coming vehicle and the maintenance vehicle, constructing a time sequence prediction model which takes historical fragments as input and applies front time window constraint to data nearby the current moment, and predicting the time sequence of the current time. Relative movement in a future short time period is predicted, safety indexes such as collision time TTC and required deceleration DRAC are calculated, threshold values are corrected in combination with road alignment, longitudinal slopes and visibility, and a directional horn is used for achieving rear-end collision early warning. According to the method, the false alarm rate and the missing alarm rate can be reduced in complex scenes such as curves, long slopes and low visibility, the early warning accuracy and robustness are improved, and rear-end collision accidents of mobile maintenance operation are reduced.
Owner:TONGJI UNIV

A motor load adaptive adjustment method based on analog circuit

PendingCN122092742Aachieve recognizabilityRealize intelligent responseMotor parameters estimation/adaptationElectric machineMotor loop
This application provides a motor load adaptive adjustment method based on analog circuits, relating to the field of motor control technology, including the following steps: converting the load current in the motor circuit into a first voltage signal, and generating a mode selection signal based on the amplitude and rate of change of the signal; wherein, when the amplitude of the first voltage signal exceeds a first threshold and its rate of change exceeds a second threshold, the mode selection signal indicates a dynamic response mode; otherwise, the mode selection signal indicates a steady-state adjustment mode; when the indication is a steady-state adjustment mode, the first voltage signal is introduced into a first path, which includes a first error amplifier with a first proportional coefficient; when the indication is a dynamic response mode, the first voltage signal is introduced into a second path, which includes a second error amplifier with a second proportional coefficient greater than the first proportional coefficient; generating and outputting a motor drive signal according to the adjustment signal output from the selected path.
Owner:TIANJIN HEXI GUANGQI ENERGY TECHNOLOGY CO LTD

A hydraulic power module, application, hydraulic system, fire truck and method

This invention discloses a hydraulic power module, its application, a hydraulic system, a fire truck, and a method. The hydraulic power module, used in the hydraulic system of a fire truck, is suitable for adjusting various hydraulic components. It includes a pressure signal pipeline for monitoring the pressure values ​​of the hydraulic system and controlling the hydraulic output. The pressure signal pipeline collects dynamic pressure values ​​of the hydraulic system in real time, forming a continuous pressure feedback signal. The pressure feedback signal is compared in real time with a preset target pressure value. If the pressure feedback signal continuously deviates from the target pressure value, a fault signal is issued. This hydraulic power module, by setting multiple hydraulic power sources, allows other hydraulic power sources to provide emergency hydraulic power when one source fails, preventing loss of hydraulic power, improving the stability of the hydraulic system, and providing emergency hydraulic power support. The accumulator absorbs pressure signal peaks, stabilizing the pressure signal.
Owner:JIANGSU TIANYI AIRPORT SPECIAL EQUIP CO LTD

An air guiding device, an air conditioner and a control method

This invention provides an air guiding device, an air conditioner, and a control method. The ventilation equipment has an air outlet. The air guiding device includes a rotating shaft and air guiding components. The rotating shaft is rotatably mounted at the air outlet. Multiple air guiding components are arranged alternately along the circumference of the rotating shaft. When the rotating shaft rotates, the multiple air guiding components can rotate synchronously. By controlling the rotating shaft to rotate to different angles, the air outlet can achieve simultaneous upward and downward airflow, upward airflow alone, and downward airflow alone. The airflow volume of the air outlet can be adjusted by adjusting the rotation angle of the rotating shaft. The structure and control method are simple, occupy little space, and have stable movement. The two sides of the first air guiding component in the thickness direction are both airfoil-like structures, and the connection between the air guiding component and the rotating shaft is smoothly transitioned to reduce air resistance. The target rotation angle of the rotating shaft is determined according to the current position and target position of the air guiding component. By controlling the rotating shaft to rotate to the target rotation angle, the air outlet can be in the target state.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Phase-locked loop and method of generating an output clock with reduced jitter

A phase-locked loop and a method for generating an output clock with reduced jitter. The phase-locked loop with reduced jitter comprises a phase detector for comparing a phase of a reference clock with a phase of a feedback clock to generate a plurality of up and down control signals; a voltage-controlled oscillator for generating an oscillation signal according to the plurality of up and down control signals; an output divider for dividing the oscillation signal to generate the output clock; a non-integer feedback divider for dividing the oscillation signal according to a modulated sequence to generate a modulated clock; a divider in series with the non-integer feedback divider and for dividing the modulated clock by a fixed modulus to generate a divided clock; wherein a frequency of the modulated clock is an integer multiple of a frequency of the divided clock, and one of the modulated clock and the divided clock is used as the feedback clock.
Owner:FARADAY TECH CORP

Path planning method and device based on variable expansion coefficient and storage medium

The invention discloses a path planning method and device based on a variable expansion coefficient, and a storage medium. The path planning method comprises the following steps: obtaining state information of a vehicle and environment obstacle information; according to the state information of the vehicle, a dynamically-changing expansion coefficient is calculated, and the dynamically-changing expansion coefficient is at least in positive correlation with the current speed of the vehicle; performing expansion processing on an obstacle by using the dynamically changing expansion coefficient to generate an expansion area; generating a group of candidate paths based on the road reference line; candidate paths intersecting with the expansion area are removed, and an optimal path is selected from the remaining candidate paths to serve as an obstacle avoidance track; and outputting the obstacle avoidance track to a vehicle control system for execution. According to the method, the expansion coefficient dynamically related to the vehicle speed, the steering angle, the path curvature and other factors is designed, self-adaptive adjustment of the safety distance is achieved, and therefore the obstacle avoidance track which is safer and smoother and better conforms to the vehicle dynamic characteristics is generated.
Owner:城市之光(深圳)无人驾驶有限公司

Welding gun support of welding equipment

The utility model provides a welding gun support of welding equipment, which belongs to the technical field of welding and comprises a bottom plate, a mounting hole formed in the surface of the bottom plate, a connecting rod inserted in the center of the mounting hole, a limiting component fixedly mounted on the surface of the bottom plate, and a placing component matched with the limiting component for use, the limiting assembly comprises a fixing frame fixedly installed on the surface of the bottom plate, a fixing hole formed in the side surface of the fixing frame, and a connecting plate making contact with the fixing frame. Through the arrangement of the limiting assembly, effective combination of stability and flexibility is achieved, meanwhile, heat dissipation protection is enhanced, the fixing stability of the welding gun is improved, displacement and shaking in the welding process are reduced, and welding precision is guaranteed; the position of the welding gun can be quickly determined and adjusted through the adjustable placing assembly, and the welding efficiency is improved; and due to the arrangement of the multi-layer structure of the placing blocks, the heat resistance and the heat dissipation performance of the bracket are effectively improved.
Owner:GUANGDONG HAOFA ALUMINUM TECH CO LTD

An adjustable air scoop

The utility model relates to adjustable air hood, including casing, opening through -hole, around the axis of through -hole, the hole wall of through -hole opens first air outlet, the casing still opens the air inlet intercommunication first air outlet, baffle, the axis of through -hole is arranged in the casing, baffle divides the internal space of casing, forms the first air chamber intercommunication air inlet and the air outlet air chamber intercommunication first air outlet, adjustment air duct, one end intercommunication air outlet air chamber, the other end intercommunication hole wall of through -hole, wherein, along the axis of through -hole, baffle one end connects casing, and the other end of baffle and casing form equidistance gap, set up conic plug in adjustment air duct, control the opening of conic plug, control the opening degree of adjustment air duct, the utility model discloses through the conic plug in adjustment air duct, change the opening of conic plug to change the opening degree of adjustment air duct, change the blowing capacity of adjustment air duct to adjust pertinently to promote cooling effect.
Owner:ANYANG PLASTIC CHEM CO LTD

Printer core and printer

The utility model discloses a printer core and a printer, the printer core is used for selectively printing pigment on a color tape onto a printing medium through a printing unit, the color tape is driven by a rolling driving part which is rotatably arranged to be rolled, and the printing medium is conveyed by a paper feeding roller; the first driving source used for driving the paper feeding roller to rotate and the second driving source used for driving the winding driving part to rotate are arranged respectively, so that rotation of the winding driving part and rotation of the paper feeding roller do not interfere with each other, and the transmission problem of the winding driving part and the driving part of the winding driving part does not affect the paper feeding roller. Therefore, the possibility that the paper feeding roller shakes is greatly reduced, the phenomenon of horizontal stripes is well improved, and the printing quality is improved.
Owner:XIAMEN HANIN CO LTD

Handheld ship plate welding device

ActiveCN224128835UAvoid affecting welding qualityreduce jitterLaser beam welding apparatusHand heldStructural engineering
The utility model discloses a handheld ship deck welding device which comprises a gun body, a handle is fixedly connected to the gun body, a control switch is arranged on the handle, a support is rotationally connected to the gun body, a wire feeding assembly is arranged on the support, a graduated tube is fixedly connected to the gun body, a copper nozzle is fixedly connected to the graduated tube, and a welding wire is arranged on the copper nozzle. According to the welding device, the supporting assembly is arranged on the graduated tube to support the welding device, so that shaking caused by manual holding in the welding process is reduced, it is ensured that the welding track is accurate, meanwhile, manual holding for a long time is avoided through mechanical supporting, the welding efficiency is improved, and the welding quality is improved. And the labor intensity is reduced.
Owner:SHANDONG HAORUIDE INTELLIGENT TECH CO LTD

Triggering system for triggering gas switch based on linear photoconductive switch

The invention discloses a triggering system for triggering a gas switch based on a linear photoconductive switch, and aims to solve the problems of instability, short service life, low compactness and the like of an existing triggering system. The device is composed of a high-voltage direct-current source, a charging resistor, a charging isolation inductor, a thyristor, a pulse charging source, a gas switch, a photoconductive switch, a current-limiting resistor, a reverse inductor, a control loop and a load. The pulse charging source comprises an energy storage capacitor, a thyristor, a pulse transformer and a pulse forming line. The control loop is composed of a digital delay generator and a trigger light path. The trigger light path is composed of a laser, a beam expander, an iris diaphragm, a beam splitter and an attenuation piece according to the light path of the pulse laser. The positive electrode end of the photoconductive switch is connected with the high-voltage electrode of the gas switch, bias voltage is directly obtained through coupling of the high-voltage electrode of the gas switch in a capacitive voltage dividing mode, a high-voltage bias power source is omitted, compactness and stability are good, the service life is prolonged, and reliability is improved.
Owner:NAT UNIV OF DEFENSE TECH

A method, system and device for optimizing a causal flow-based and multi-constrained flow pattern driving and retrieval model

PendingCN122509230AOutput timing is continuousreduce jitter
The application discloses a method, system and device for optimizing a flow mouth shape driving and retrieval model based on a causal flow and multiple constraints, applied to the technical field of data processing, relying on machine learning multi-modal time sequence representation learning, fusing speech acoustics, mouth shape, prosody and emotional features, and constructing a standardized time sequence dataset; an audio-mouth shape correlation model is trained by K-Means++ clustering to generate a mouth shape codebook with prosody and emotional adaptation; a causal flow reasoning and four-level hierarchical constraint model is constructed, and constraint weights, costs and rewards are modeled as learnable parameters; time sequence rules such as mouth shape transition and syllable trajectory are fitted through supervised learning; candidate rearrangement is completed through model reasoning and constraint optimization, relying on causal retrieval and three-mode decision, and a stable mouth shape sequence generated by machine learning is output.
Owner:XIAMEN CHANJING TECH CO LTD

Automobile seat parameter determination method and device, electronic equipment and storage medium

The invention is suitable for the technical field of vehicles, and provides an automobile seat parameter determination method and device, electronic equipment and a storage medium, and the method comprises the following steps: under a preset driving working condition, obtaining a vibration acceleration and a comfort level score of a seat headrest, and determining a vibration acceleration threshold according to the vibration acceleration and the comfort level score; acquiring a relation curve between the vibration acceleration of the seat headrest and the inherent frequency of the seat; according to the relation curve and the vibration acceleration threshold value, the seat inherent frequency range enabling the vibration acceleration of the seat headrest to be smaller than the vibration acceleration threshold value is determined. According to the method, the shaking of the headrest can be accurately evaluated and predicted in the design stage of the automobile seat, the design modification of the automobile seat is guided, the shaking is reduced, and the comfort is improved.
Owner:GREAT WALL MOTOR CO LTD

Environment perception based robot obstacle avoidance trajectory planning method and system

ActiveCN120735014Bunderstand spatial relationshipsRapid responseProgramme-controlled manipulatorPoint cloudSimulation
The application relates to an environment perception-based mechanical arm obstacle avoidance trajectory planning method and system, which comprises the following steps: acquiring joint angle data and end effector position data of a mechanical arm, establishing a joint space for mechanical arm work according to the joint angle data and the end effector position data; acquiring environment point cloud data, extracting obstacle information based on the environment point cloud data, and acquiring a safe operation space of the mechanical arm through the obstacle information; acquiring a current joint angle combination of the mechanical arm, converting a position difference between the current joint angle combination and a target position into an angle increment in the joint space, and adjusting an angle value exceeding the boundary of the safe operation space, so as to complete obstacle avoidance trajectory planning of the mechanical arm. The application can realize a grabbing task while avoiding obstacles.
Owner:BEIJING SCI & TECH PATENT OFFICE

Radial drill chambering device for mold manufacturing

The utility model discloses a radial drill chambering device for mould manufacturing, which comprises a workbench, a clamp, a workpiece, a chambering drill bit, a drill rod, a plurality of vertical rods, an annular ring, a plurality of ejector rods and a plurality of pulley assemblies, the workpiece is fixedly connected to the center of the workbench through the clamp, and the tail part of the chambering drill bit is connected to the end part of the drill rod; the vertical rods are connected to the edge of the workbench, the annular ring is connected to the top ends of the vertical rods, the annular ring is connected with the ejector rod in the radial direction, and the end of the ejector rod is connected with the pulley assembly. The drill rod penetrates through the center of the annular ring, and the side face of the drill rod is in rolling connection with the pulley assembly. Compared with the prior art, the supporting device has the advantages that the ejector rods surround the ejector rods, the drill rod is limited to shake in the radial direction, the pulley assembly is connected with the side face of the drill rod in a rolling mode, friction force is small, and the supporting effect is good. Due to the fact that the reamer bit is connected with the drill rod, shaking of the reamer bit in the radial direction is reduced, and adverse effects caused by shaking are reduced.
Owner:SUZHOU YUANMAO PRECISION MACHINERY CO LTD

Low-latency Bluetooth audio transmission methods, apparatus, devices and media

This application relates to a low-latency Bluetooth audio transmission method, apparatus, device, and medium. The Bluetooth audio transmission method includes: a data access step, initiating an audio data transmission request to a microphone; after receiving the audio data sent by the microphone via Bluetooth, the host device parses the audio data through the Bluetooth protocol stack and writes the parsed audio data as raw data into the operating system's data interface; an audio processing step, reading the raw data from the data interface through an audio processing library, processing the raw data, and outputting the processed audio data for playback; wherein the audio processing library is located in the operating system's hardware abstraction layer. This invention achieves low-latency and stable Bluetooth audio playback by processing audio data at the hardware abstraction layer and combining it with a playback clock adaptive adjustment mechanism.
Owner:SHANGHAI HEARTHSTONE INFORMATION TECH CO LTD

Random missing modalities semi-supervised medical image training method and device and segmentation method

PendingCN122511502Areduce jitterTaking into account time stability
This application discloses a semi-supervised training method, apparatus, and segmentation method for medical images with random missing modalities, relating to the field of image processing technology. The method includes: acquiring multiple training data containing images of at least two modalities, dividing them into labeled and unlabeled datasets; constructing a student model and a teacher model with consistent network structure and initial parameters, and obtaining the teacher model as the segmentation model through multiple rounds of iterative training. This application achieves dual decoupling: the teacher model parameters are decoupled into structural base parameters and low-rank adaptation parameters, and the cross-modal fusion module synchronously splits the corresponding two types of parameters; both types of parameters are updated by the student model parameters using an exponential moving average, with the base parameters updated slowly using a larger first momentum to stabilize the anatomical representation, and the adaptation parameters updated rapidly using a second momentum to adapt to the modal fusion shift. This dual-rate update mechanism balances prediction stability and modal adaptation performance, suppressing pseudo-label jitter.
Owner:PEKING UNION MEDICAL COLLEGE HOSPITAL

A data processing method and a data processing apparatus

ActiveCN120567386Breduce complexityreduce jitterError correction/detection using concatenated codesSingle error correctionClock rateEthernet
This application discloses a data processing method and a data processing apparatus. First data processing is performed on multiple first data streams encoded with a first FEC to obtain m second data streams. Each second data stream undergoes second FEC encoding, and each codeword after second FEC encoding includes N bits, where N = K + S, K represents the number of information bits, and S represents the number of parity bits. Second data processing is performed on each of the m second data streams to obtain m third data streams. Each third data stream includes at least one bit sequence, each bit sequence including P + W bits, where P bits in each bit sequence come from the second data streams, and W bits in each bit sequence are added alignment markers, where P = N × b. Third data processing is performed on the m third data streams to obtain Y modulation symbol streams, each modulation symbol stream being modulated, and the baud rate value of each modulation symbol stream being an integer multiple of the typical Ethernet reference clock frequency value.
Owner:HUAWEI TECH CO LTD

High-stability air compressor for energy storage

The invention relates to the technical field of air storage air compressors, and discloses a high-stability air compressor for energy storage, which comprises a damping base and a damping assembly, a compressor is arranged on the inner wall of the damping base, and an air inlet pipe is fixedly mounted on the right side of the compressor; the damping assembly comprises a moving frame, an adjusting hole, a moving hole, an elastic telescopic rod, a limiting groove, an elastic telescopic plate, an elastic telescopic roller and a damping frame, the moving frame is fixedly installed at the bottom of the compressor, the adjusting hole is formed in the front side of the damping base, and the moving hole is formed in the front side of the moving frame. When the elastic telescopic plate is pressed to move downwards, the elastic telescopic plate is separated from the limiting groove and the limiting to the elastic telescopic rod is relieved, the triggering mode of pressing unlocking can prevent limiting failure caused by accidental touch in the daily operation process, and the design of automatic limiting after resetting can ensure that the elastic telescopic rod is stably locked; therefore, excessive vibration leakage caused by limiting falling during operation of the compressor is avoided.
Owner:JIANGSU JIELI KINETIC ENERGY TECH CO LTD