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47results about How to "Eliminate jitter" patented technology

Explosion-proof video conference system and video conference implementation method

The invention relates to the technical field of television image communication, in particular to an anti-explosion conference television system and a conference television implementation method. The method comprises the following steps: acquiring an original conference image stream through multi-source image acquisition, performing displacement compensation and multi-resolution fusion, generating a standardized image stream, simulating conference communication transmission, checking image feature quality, deducing equipment load, analyzing the bearing capacity of the explosion-proof conference television, and obtaining a bearing capacity change curve; and according to the curve, screening out a limit load point, carrying out load reduction segmentation, generating a low-load image stream, carrying out path redistribution on the low-load image stream, forming a path distribution matrix, and realizing real-time transmission so as to ensure effective operation of the explosion-proof conference television. According to the invention, a safer and more efficient explosion-proof conference television realization method is realized.
Owner:SHENZHEN MEIJIA TECH CO LTD

Method, device and system for eliminating jitter at tail end of mechanical arm and storage medium

The invention provides a method, device and system for eliminating jitter at the tail end of a mechanical arm and a storage medium, and relates to the technical field of robot control, and the method for eliminating jitter at the tail end of the mechanical arm comprises the steps that historical motion data of the tail end of the mechanical arm to be subjected to jitter elimination is obtained and converted, and a sampling spectrogram is obtained; judging the sampling spectrogram according to a preset threshold value to obtain band-pass data; filtering the real-time motion data of the tail end of the mechanical arm to be subjected to shake elimination according to the band-pass data so as to eliminate shake of the tail end of the mechanical arm to be subjected to shake elimination in the motion process; through the jitter eliminating process, the filtered data can more accurately reflect the real motion state of the tail end of the mechanical arm, and therefore the operation precision of the mechanical arm is improved. Particularly, under the condition of fine operation or high-load working, the accuracy is crucial.
Owner:HARBIN SIZHERUI INTELLIGENT MEDICAL EQUIP CO LTD

Abnormal behavior recognition method based on visual large model and cognitive Agent

The invention discloses an abnormal behavior identification method based on a visual large model and a cognitive Agent, and relates to the technical field of computer vision, and the method comprises the steps: collecting an RGB image and an infrared thermal imaging IR image in a monitoring scene, and extracting a human body key point sequence; performing time sequence difference processing on the key point sequence, and constructing a skeleton velocity vector containing a motion trend; inputting the skeleton velocity vector into a Mamba model, adjusting model parameters by using a selective state space mechanism, and carrying out long-time-sequence modeling on the action sequence; predicting the speed variation of the next frame by adopting a residual prediction architecture and reconstructing a human body posture; and calculating an abnormal score according to the prediction error, triggering a cognitive Agent when the score exceeds a preset threshold value, calling a visual large model (VLM) to perform semantic analysis on the current scene environment, and generating a natural language warning containing an abnormal type and an environmental cause. According to the method, the forgetting problem of a traditional model in a long sequence and the jitter problem of a prediction action are solved.
Owner:SOUTHWEST UNIV

Temperature compensated low power RC oscillator

This application discloses a low-power temperature-compensated RC oscillator, comprising a low-voltage linear buffer, an RC core circuit, a comparator, a Schmitt trigger, a non-overlapping clock generator, and a level shifter. The low-voltage linear buffer uses intrinsic transistors to reduce operating voltage and power consumption; the RC core circuit employs temperature compensation technology, including a series low-temperature drift resistor and a temperature-dependent current source, causing the equivalent resistance to increase with temperature; the comparator compares a triangular wave signal with a reference voltage and outputs a reference clock; the Schmitt trigger filters out clock glitches; the non-overlapping clock generator generates a two-phase clock with dead time to control charging and discharging; and the level shifter converts the low-voltage domain clock to the high-voltage domain. This oscillator eliminates the influence of comparator offset voltage through two-phase switching control and employs low-voltage and temperature compensation technology to achieve a high-precision, low-temperature drift reference frequency in a small area with low power consumption, making it suitable for compact sensing and measurement systems.
Owner:JIANGSU XINKANG MICROELECTRONICS TECH CO LTD

Mobile communication message transceiver system and method

ActiveCN116405049BEliminate jitterreduce capacityTransmissionHigh level techniques
This application provides a mobile communication message transmission and reception system and method. The system includes a BBU unit, a HUB unit, and an RRU unit. The HUB unit includes a message receiving module, a first FIFO memory, a timer module, a message reading module, a message decompression module, a message merging and compression module, a second FIFO memory, and a message sending module. The timer module sends a reminder message to the message reading module when a set time is reached. The message reading module reads the message data sent by each RRU unit stored in the first FIFO memory. Upon receiving the reminder message from the timer module, it sends the currently read message data from each RRU unit to the message decompression module. In this embodiment, because a timer is used, messages can be sent to the BBU unit at a constant interval in different RRU unit relocation scenarios, eliminating message jitter and saving the capacity of the second FIFO memory.
Owner:NEW H3C TECH CO LTD

Power seamless switching device and method for radiation measurement equipment

PendingCN122600439ASolve the problem of random countingavoid loss
This invention belongs to the interdisciplinary field of power management and radiation measurement, aiming to solve the problem of inaccurate counting caused by shared power supply in radiation measurement. It provides a seamless power switching device and method for radiation measurement equipment. The switching device includes a controlled power-off unit, a transient competitive power supply network, and a static path maintenance unit. The controlled power-off unit is configured to connect the external power supply to the transient competitive power supply network in non-measurement states, and to disconnect the electrical connection between the external power supply and the transient competitive power supply network upon receiving a radiation measurement trigger signal. The transient competitive power supply network is configured to automatically transfer the power supply path of the static path maintenance unit from the external power supply to the internal energy storage power supply when the output voltage of the controlled power-off unit drops below the voltage of the internal energy storage power supply. The static path maintenance unit is configured to maintain connection with the radiation measurement equipment. This invention can solve the problem of inaccurate counting in radiation measurement equipment under shared power supply scenarios.
Owner:SHANXI ZHONGFU NUCLEAR INSTR CO LTD

Video frame processing method and device, computer device and storage medium

The application relates to a video frame processing method and device, computer equipment, a storage medium and a computer program product. The method can be applied to cloud conference, cloud storage, artificial intelligence and intelligent transportation scenes, and the method comprises the following steps: determining the posture of a key part of a target object in each video frame carrying noise; determining the deflection degree value of the key part in each video frame according to the posture of the key part; generating a control signal based on the deflection degree value of the key part in each video frame; performing back gap filtering on the control signal according to a back gap filtering coefficient through a back gap filter to obtain a deflection update value of the key part in each video frame; and sequentially performing image processing on each video frame based on the deflection update value in each video frame. The method can effectively eliminate the jitter caused by noise when the video frame is subjected to image processing, and is beneficial to improving the stability of the video frame after image processing.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD

Handheld laser directional energy system

PendingCN122085299AImproved spot sizeExpand the scope of observationOptical measurementsElectromagnetic wave reradiationLaser rangingHigh resolution imaging
The invention relates to the technical field of optical engineering, and discloses a handheld laser directional energy system which comprises a Shack-Hartmann wavefront detection system, a visual observation system, an atmospheric turbulence correction system, a laser emission system, a laser ranging system and an anti-shake system. By integrating wavefront detection and adaptive correction, coaxial design, target background difference enhancement through light splitting, MEMS reflector dynamic adjustment, jitter compensation and other technologies, the problems that the imaging quality is interfered by atmospheric turbulence, correction is inaccurate due to system space separation, the contrast ratio of a dark and weak target is poor, aiming is difficult, and jitter miss is caused are solved; the effects of high-resolution imaging, energy concentration, easy target discovery, automatic locking and stable aiming are achieved.
Owner:四川文理学院

Damping-adjustable hydraulic lock suitable for heightening oil cylinder of coal mining machine

The invention relates to a damping-adjustable hydraulic lock suitable for a heightening oil cylinder of a coal mining machine, which comprises a valve block, and a first hydraulic control one-way valve, a second hydraulic control one-way valve and a one-way adjustable throttle valve which are arranged on the valve block. An inlet of the first hydraulic control one-way valve and a hydraulic control port of the second hydraulic control one-way valve are both communicated with a first inlet of the valve block, an outlet of the first hydraulic control one-way valve is communicated with an inlet of the one-way adjustable throttling valve, and an outlet of the one-way adjustable throttling valve is communicated with a first outlet of the valve block. An inlet of the second hydraulic control one-way valve and a hydraulic control port of the first hydraulic control one-way valve are communicated with a second inlet of the valve block, and an outlet of the second hydraulic control one-way valve is communicated with a second outlet of the valve block. When the rocker arm is heightened, frequent impact and vibration between the valve element and the valve seat are avoided, so that the rocker arm is long in service life, and the rocker arm can descend stably without shaking.
Owner:SHANGHAI TIANDI MINING EQUIP TECH CO LTD

Device, method and electronic equipment for collecting indoor documents

The present invention belongs to the field of image acquisition technology, and solves the technical problem in the prior art that the image acquisition system uses a motor to drive a telephoto camera to aim at a target, resulting in optical path jitter and unclear imaging, and provides a device, method and electronic device for acquiring indoor documents. The device includes: a first camera mechanism, used to acquire a target image; a brushless motor, used to control the shooting angle of the first camera mechanism; a braking mechanism, which controls the brushless motor to stop rotating when the first camera mechanism is at a specified shooting angle, and when the brushless motor is in a braking state, the braking mechanism and the brushless motor both stop power output, and the optical path of the first camera mechanism to capture the target image is in a stable state. The present invention can accurately aim at indoor target document images for acquisition, and can avoid the problem of unclear imaging caused by motor jitter during acquisition, thereby achieving a high-precision document shooting effect.
Owner:深圳市智像科技有限公司

Electronic image stabilization method and device

The embodiment of the invention provides an electronic image stabilization method, which is used for processing visible light video data of an airborne photoelectric hanging bin, and comprises the following steps of: 1, acquiring video sequence basic information; step 2, feature point detection and motion estimation; step 3, performing abnormal processing on the motion model; step 4, motion trail smoothing processing; 5, image stabilization transformation and post-processing are carried out; and step 6, outputting a result. Aiming at visible light video data of an airborne photoelectric pod, various forms of jitter motion can be accurately captured and compensated through multi-scale feature point tracking and intelligent motion estimation. Compared with a traditional method, the method shows higher precision and stability when a complex motion mode is processed. Especially in scenes with slight motion blur, illumination variation or partial shielding, the method can still keep reliable image stabilization performance. The smooth processing of the motion trail enables the finally output video to eliminate uncomfortable jittering and maintain the intentional motion of the camera, thereby conforming to the visual perception characteristics of human beings.
Owner:CENT CHINA OPTOELECTRONICS TECH RES INST (CHINA STATE SHIPBUILDING CORP 717TH RES INST)

High-speed cable assembly and server

The utility model provides a high-speed cable assembly and a server. The high-speed cable assembly comprises a cable piece and a connecting plug, the connecting plug comprises an AEC circuit board, the AEC circuit board comprises a board main body and a Retimer chip, a welding position is arranged on the surface of the board main body, one end of the cable piece is welded to the welding position, the Retimer chip is arranged on the board main body and electrically connected with the welding position, and the connecting plug is electrically connected with the Retimer chip. And a CDR circuit is arranged in the Regimer chip. According to the utility model, the Retimer chip is additionally arranged in the board main body, the CDR circuit is arranged in the Retimer chip, the CDR circuit can convert a digital signal and an analog signal, when an external analog signal enters the CDR circuit, the analog signal is restored to the digital signal and then changed into the analog signal again to be sent out, that is, a signal arrangement process is added to the Retimer chip, the jitter of the signal is eliminated, and the reliability of the signal processing is improved. And thus, the signal transmission distance is relatively long.
Owner:RESERCH ON ELECTRICAL APPLIANCES OF SHANGHAI ASTRONAUTICS CO LTD

Constant-tension pay-off drawing mechanism for tungsten filament

The utility model provides a constant-tension pay-off drawing mechanism for tungsten filaments, which comprises a base, a pay-off servo motor, a pay-off spool, a wire passing wheel set, a traction wheel set and a drawing die, and traction motors are arranged at the end parts of a primary traction winding wheel and a secondary traction winding wheel; the pay-off servo motor and the traction motor are both connected with the HMI setting unit and the motor driver, a PID current loop is arranged in the motor driver, and the HMI setting unit and the motor driver are both connected with the controller. The servo motor can feed back the change of the torque, at the moment, the servo control system adjusts a current loop of the paying-off servo motor in real time, stable control over the target tension is achieved, the amplitude of vibration is greatly weakened, the improvement effect is quite visual, the quality abnormity problems such as wire breakage caused by shaking are solved, and the purposes of improving the product quality and the production efficiency are achieved.
Owner:ZHANGJIAKOU YUANSHI ADVANCED MATERIALS CO LTD

Automatic wire plugging device of flat wire motor

The invention discloses an automatic wire plugging device of a flat wire motor, and relates to the field of wire plugging of the flat wire motor, and the automatic wire plugging device comprises a four-axis robot, the bottom of the four-axis robot is provided with a double-claw wire clamping mechanism, the side edge of the four-axis robot is provided with a conveying line, the top of the conveying line is provided with a wire cup, and the bottom of the wire cup is provided with a shaping structure. A jacking rotating mechanism is arranged at the bottom of the shaping structure, a shaping block is installed at the top of the shaping structure, a rotating disc is rotationally connected into an inner cavity of the shaping structure, and bosses are symmetrically installed on the two sides of the bottom of the rotating disc. According to the automatic wire plugging equipment of the flat wire motor, a complex mold is not needed, the tool design is greatly simplified, the mold manufacturing cost is greatly reduced, the flexibility is high, automatic remodeling can be achieved through program switching, a four-axis robot is used for transferring, the structural design of the whole equipment is simplified, the debugging time can be effectively shortened, and the debugging efficiency is improved. And the wire plugging efficiency and quality are greatly improved.
Owner:CHANGSHA ESITE INTELLIGENT TECH CO LTD

A hardware anti-jitter electronic switch circuit

ActiveCN224746536UStructure is easy to implementlow cost
The utility model discloses a kind of hardware anti-shaking electronic switch circuit, including signal input filter voltage stabilizing circuit, signal anti-shaking inverting circuit and signal buffer circuit;Wherein, the input end of signal input filter voltage stabilizing circuit is connected after the input signal needing anti-shaking outside, the output end of signal input filter voltage stabilizing circuit is connected with the signal anti-shaking inverting circuit, signal buffer circuit;The output end of signal anti-shaking inverting circuit is connected with the input end of signal buffer circuit, and the output end of signal buffer circuit is connected to the external circuit of receiving anti-shaking signal.The utility model can effectively eliminate mechanical contact shaking, ensure the stability and accuracy of signal, applicable to most circuits needing signal anti-shaking.Meanwhile, circuit structure is easy to realize, and cost is low.
Owner:SHAANXI ZHONGKE TIANDI AVIATION MODULE

Multi-sensing measurement method and system for displacement signals of micro-resistance spot welding large cantilever electrode

ActiveCN119289842Aavoid installation interferenceEliminate jitterUsing electrical meansElectrical resistance and conductanceSpot welding
The invention provides a multi-sensing measurement method and system for displacement signals of a micro-resistance spot welding large cantilever electrode, and the method comprises the steps: S1, collecting sensor data in an air compression process, and calibrating the rigidity of an electrode pressurization mechanism; s2, sample welding is conducted, and dynamic signals in the welding process are collected; s3, according to the rigidity of the electrode pressurization mechanism, the pressure signal, the displacement signal and the acceleration signal are coupled to obtain a far-end displacement signal and a near-end vibration signal; and S4, performing vibration filtering on the far-end displacement signal by using the near-end vibration signal to obtain a smooth electrode displacement signal, and completing the measurement process. According to the method, the problem of sensor installation interference occurring when electrode displacement signals are measured in a near-end welding area is solved, the micro spot welding process can be monitored on line under the condition that the welding process is not interfered, the problem of signal jitter caused by insufficient rigidity of a large cantilever electrode pressurization mechanism is solved, and the precision of far-end displacement signal measurement is improved.
Owner:SHANGHAI JIAOTONG UNIV +1

Base station fronthaul interface parsing processor and message parsing method

The present invention provides a base station front-haul interface parsing processor and a message parsing method, belonging to the field of communication technology, wherein the processor comprises a register group module composed of a plurality of registers, an operation module, a block moving module, a data recovery module and a cache, wherein the operation module processes the message data under the drive of a parsing instruction sequence when the message type of the message data is a U-plane message and generates a block moving control word and a data recovery control word, the block moving module moves the message data from the register group module based on the block moving control word and writes the message data into the cache, the data recovery module loads the message data from the cache based on the data recovery control word for recovery, and sends the recovered message data until the sending of a message data is completed. The present invention configures the control words for realizing block moving and data recovery in the processor through the operation module, constructs a new architecture for collaborative parsing of message data by ASIP and accelerator, and realizes a high-speed and high-throughput processor under the parsing of message data of the front-haul interface.
Owner:JIXIN COMM TECH (NANJING) CO LTD

T trigger, multimode frequency divider and phase-locked loop

The invention provides a T trigger, a multimode frequency divider and a phase-locked loop, and relates to the technical field of electronic circuits, the output end of a first D trigger is connected with the grid electrode and the drain electrode of a first triode, the reverse output end of the first D trigger is connected with the grid electrode and the drain electrode of a second triode, and the grid electrode of a sixth triode is connected with the signal input end of the T trigger; the drain electrode and the grid electrode of the third triode are connected with the source electrode of the first triode and the inverted input control end of the T trigger, the source electrode is connected with the source electrode of a fourth triode and the drain electrode of a fifth triode, the grid electrode of the fourth triode is connected with the input control end, and the grid electrode of the fifth triode is connected to the signal inverted input end of the T trigger; the drain electrode of the tail current tube is connected with the source electrode of the sixth triode and the source electrode of the fifth triode, the grid electrode is connected with bias voltage, and the source electrode is grounded; the output ends and the reverse output ends of the two-stage first D flip-flops are correspondingly connected with the input ends and the reverse input ends of the two-stage first D flip-flops, so that multi-bit mode control can be realized, and a continuous and programmable frequency division value is realized.
Owner:SHANGHAI PANCHIP MICROELECTRONICS CO LTD

A method and system for defect detection of photovoltaic cells

A defect detection method and system for photovoltaic cells, an initial point pair set corresponding to each line laser profiler is obtained, a first correction slope corresponding to the line laser profiler is calculated, and then the initial point pair set corresponding to the line laser profiler is profile corrected to obtain a real-time point pair set corresponding to the line laser profiler; a first type of defect detection result is obtained according to the real-time point pair set corresponding to each line laser profiler; and / or a second type of defect detection result is obtained according to the real-time point pair set corresponding to each line laser profiler and the standard profile data of the three-dimensional vision sensor corresponding thereto. The error caused by mechanism jitter, installation non-parallelism and the like is suppressed or removed through profile correction and one-dimensional signal filtering and the like, so as to improve the repeatability and stability of measurement, so that the measurement data is close to the true value, and then the accuracy of the defect detection result is ensured, and on this basis, integrated measurement of various defects is realized.
Owner:SHENZHEN HUAHAN WEIYE TECH

Short video generation method and device

The embodiment of the invention provides a short video generation method, and the method comprises the steps: automatically recognizing a character dialogue in a to-be-processed long video through a large model of automatic voice recognition and deep learning, and automatically intercepting a wonderful segment in the long video according to the semantic analysis of the character dialogue; and combining the wonderful clips, and automatically adding a transition special effect at a switching position between different clips to obtain an edited short video. According to the technical scheme provided by the embodiment of the invention, the bright spot of the video can be more accurately captured when the short video is generated, and the visual effect of the short video is improved.
Owner:SHANGHAI HODE INFORMATION TECH CO LTD

Nipple opening automatic positioning system and guiding system for duodenal papilla intubation guiding

PendingCN121845746AEliminate jitterEliminate driftSurgical navigation systemsAdaptive filterVisual perception
The invention discloses an automatic nipple opening positioning system and guiding system for duodenal nipple intubation guidance, solves the problem of how to realize high-precision and high-robustness positioning of a nipple opening under multiple constraints, and belongs to the technical field of medical image processing and computer-aided surgical navigation. According to the invention, a generative model is utilized to actively deduce anatomical features of a shielded area, and continuous tracking in an instrument shielding scene is realized; establishing an absolute mapping relation between a pixel position and a target coordinate through injection explicit space geometry prior, and obtaining a nipple opening pixel-level coordinate; visual uncertainty estimation and instrument-tissue kinematics coupling are fused, a physically constrained adaptive filtering mechanism is constructed, and smooth coordinates are obtained; the positioning system is used for constructing a guiding system, closed-loop interaction of instrument control through a handle and inlet coordinate positioning feedback is achieved in an operation environment, and dual-scene application of preoperative training and intraoperative navigation is supported.
Owner:HARBIN INST OF TECH

Puncture device capable of intelligently adjusting depth and used for interventional department

The invention relates to the technical field of puncture in the interventional department, and provides an intelligent depth-adjustable puncture device for the interventional department, which comprises a universal flexible arm, and one end of the universal flexible arm is provided with a fixed seat connected with external equipment and an angle adjusting assembly. The angle adjusting assembly is installed at the other end of the universal flexible arm through a connecting frame, the puncture assembly is arranged on the angle adjusting assembly, through the arrangement of the structures such as the multi-section flexible arm and the transmission line, the multi-section flexible arm is composed of a plurality of hinged joint units, and the transmission line is connected with the multi-section flexible arm. The transmission lines are symmetrically arranged on the two sides of the arm body and connected to the tail end joint, the retracting and releasing amount is accurately controlled through the first power end and the second power end, the arm body is accurately bent in a three-dimensional space, it is ensured that an end effector stably reaches a preset target spot area, the problem of path deviation caused by the fact that the bending direction of a traditional flexible pipe is uncontrollable is solved, and the bending efficiency is improved. The problems of easy deviation and insufficient stability in the prior art are solved.
Owner:CHANGZHOU TUMOR HOSPITAL (CHANGZHOU FOURTH PEOPLES HOSPITAL)

A robot arm smooth trajectory generation method, device and storage medium

PendingCN122231877AEliminate jitterReduce curvature densityProgramme-controlled manipulator
This invention discloses a method for generating smooth trajectories for robotic arms that combines visual keypoint cues with a hierarchical diffusion model, applicable to complex robotic arm operations based on visual and verbal commands. The method constructs a hierarchical robotic arm operation framework. The high-level layer utilizes a sub-target generator guided by a visual-language model to predict the six-DOF pose sequence of the end effector as operation sub-targets from visual observations and verbal commands. The low-level layer proposes a dual diffusion model trained based on a random sampling strategy to generate smooth, low-curvature joint position trajectories between sub-targets. A keypoint extraction module that requires no training is introduced to provide visual cues. This invention improves the success rate of operations, reduces trajectory jitter and redundant motion, and enhances the smoothness and execution stability of robotic arm operations through the synergy of hierarchical planning and diffusion trajectory optimization.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Self-adjusting transmission device for circular vibrating screen

ActiveCN224272137UDoes not affect normal rotationavoid vibrationSievingScreeningCouplingElectric machinery
This application discloses a self-adjusting transmission device for a circular vibrating screen, relating to the field of circular vibrating screen technology. The application includes a frame, a motor mounted on the frame, and a second coupling mounted on the vibrator. A first pulley is mounted on the output shaft of the motor. A bearing housing is mounted on the frame, and a main shaft rotatably passes through the bearing housing. Two spaced-apart roller bearings are disposed between the bearing housing and the main shaft. The second pulley and the first coupling are mounted on the main shaft. This application abandons the direct V-belt connection transmission method of the prior art. In use, the V-belt transmission drives the main shaft and the first coupling to rotate together, causing multiple rubber belts to move and deform. Through the pulling action of the multiple rubber belts, the second coupling rotates, enabling the vibrator to operate. Because the second coupling and the first coupling are transmitted through multiple rubber belts, their connection is close to flexible.
Owner:SICHUAN TIEYING MACHINERY MFG CO LTD

Surgical Assist Robot Based on Continuum Configuration and Control Method

The surgical assistive robot and control method based on a continuum configuration described in this invention belong to the field of surgical assistive equipment technology. It includes a support mechanism, a motion positioning mechanism, a mounting mechanism, and a mechanical execution mechanism. The support mechanism consists of a horizontal support frame, a vertical support frame, and an inverted T-shaped frame. The motion positioning mechanism includes a gimbal and a sliding table mechanism. The mounting mechanism utilizes a hydraulic telescopic device I and a rotary motor I to flexibly adjust the height and rotation angle of the upper and lower fixed platforms. The mechanical execution mechanism, through a rotary motor II, drive motor I, drive motor II, drive motor III, and an adjusting motor, achieves precise adjustment of the extension and end-effector posture of the movable upper and lower arms. The control method includes positioning initialization, mounting mechanism adjustment, mechanical execution mechanism deployment, execution device fine-tuning, surgical operation execution, and dynamic feedback and correction, achieving high precision and flexibility in operation and effectively overcoming the difficulties in master-slave hand mapping and the limitations on surgical flexibility.
Owner:SHANDONG ZHENGUAN MEDICAL TECHNOLOGY CO LTD

A double-chamber air pressure damper with controllable reset process

The application discloses a double-cavity air pressure buffer with controllable reset process, which comprises a buffer system and a limiting system, and the limiting system is connected with the buffer system through a clamping pin base and a thrust bearing which are matched with each other; the buffer system comprises an outer cylinder, an inner cylinder, a piston rod, a separation valve, a reset spring, an upper end cover and a lower end cover; the end, which is in contact with the inner cylinder, of the outer cylinder is respectively provided with an inwardly-contracted protrusion and an outwardly-expanded protrusion; the outer surface of the outer cylinder is provided with an outwardly-expanded circular table structure; the outer cylinder is uniformly provided with six air holes; and the piston rod is provided with four evenly-distributed damping holes. The application can limit the reset movement of the buffer after the buffer is compressed by impact, reduce the shaking and shaking after the buffer process is finished, and realize the active control of the reset process of the buffer; the double-cavity design with adjustable high-pressure chamber pressure enables the buffer to still have good buffering capacity under different loads, and widens the working range of the buffer.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Micro spot welding mechanism

The utility model relates to a micro spot welding mechanism which comprises an elastic device, a main frame, a support, a welding head for welding a product, a clamping block for clamping the welding head, a sliding block arranged on the clamping block, a first driving device for driving the welding head to move horizontally and a second driving device for driving the welding head to move vertically. The main frame is arranged at the driving end of the second driving device; the first driving device is arranged on the main frame; the bracket is arranged at the driving end of the first driving device; the elastic device is arranged in the support and pulls the sliding block. The sliding block moves along the support. The problems that in an existing scheme, a welding head cannot move stably, and the position of the welding head deviates are solved.
Owner:JIANGSU NORTHEND ELECTRONIC TECH CO LTD

Telescopic arm control method and system of horizontal bar bolt crane

The invention relates to the technical field of cranes, and provides a telescopic arm control method and system of a horizontal bar bolt crane, and the telescopic arm control method comprises the following steps: receiving a first control instruction of a telescopic arm; calculating the target length of the telescopic arm; each arm section is controlled to run to the corresponding target position in a decelerating mode, and when the current arm section runs to the corresponding target position, an arm pin of the current arm section is controlled to be inserted into an arm pin hole of the corresponding outer sleeve arm section; the current arm section is controlled to retract until the arm pin makes contact with the lower end of the arm pin hole, and the arm extending action of the arm section is completed; after the telescopic arm is in place, the current arm section is retracted by a certain distance, so that the arm pin of the current arm section is in contact with the lower end of the arm pin hole, when the subsequent telescopic arm is retracted, the arm section needs to be pushed forwards to conveniently release the connection between the arm pin and the arm pin hole, and in this way, the bearing force is provided for the arm section; therefore, no impact sound is generated when the arm is contracted.
Owner:SANY AUTOMOBILE HOISTING MACHINERY

A remote video picture processing method and system based on an automatic driving carrier platform

PendingCN122554726AHigh precision time synchronizationreduce mistakes
This invention relates to the field of remote monitoring and image processing technology for autonomous driving, and discloses a remote video image processing method and system based on an autonomous driving vehicle platform. The method includes: acquiring images from multiple wide-angle cameras and six-axis IMU data, and synchronizing multi-source sensor data; performing attitude prediction and vibration mode separation based on the synchronized IMU data, outputting pixel displacement prediction values, predicted homography matrix, and relative rotational perturbations between cameras; obtaining an independent stabilized image through adaptive image stabilization transformation; performing dynamic compensation and spatiotemporal consistency fusion of the surround-view stitching seams based on the relative rotational perturbations to generate a surround-view panoramic image; and outputting the final image based on adaptive distortion suppression using a human spatial perception model. This invention improves the smoothness and spatial perception reliability of remotely controlled images under vibration conditions on unpaved roads by jointly optimizing IMU high-frequency prediction and sparse optical flow, and dynamically adjusting seams and fusion weights in the stitching transition zone.
Owner:HUALU YIYUN TECH CO LTD