45results about How to "Reduce interruptions" patented technology

The invention discloses an agent task scheduling planning method, and relates to the technical field of agent scheduling. The method comprises the steps of analyzing a task instruction to generate atomic tasks capable of being independently executed, constructing a subtask dependency graph, and defining association constraints between the tasks; determining the real-time resource occupancy state of the intelligent agent to obtain a resource state tensor, completing resource-task association anchoring and dependency priority ranking in combination with the sub-task dependency graph, and generating a task priority sequence with resource constraint; performing dynamic capability matching and predictive load balancing calculation on the sequence through a task-agent adaptation model, and determining a target execution agent of each atomic task; and based on the target execution agent and the subtask dependency graph, performing time sequence scheduling arrangement and conflict resolution, and generating a collaborative execution scheme. The method improves the reasonability and efficiency of agent task scheduling, reduces resource conflicts and execution timeout risks, and is suitable for agent cluster collaborative scheduling in a complex scene.

The application provides an automatic driving system, an automatic driving redundancy control method, a device and a vehicle. The method is applied to an automatic driving system, the system comprising a plurality of automatic driving controllers, wherein each controller is used for outputting control instructions of a plurality of driving functions respectively; the method comprises: in the case that there is at least one fault controller in the plurality of controllers, determining a fault driving function and a normal driving function corresponding to each controller respectively; in the case that the number of fault controllers corresponding to each fault driving function is less than the total number of controllers, acquiring independent normal control instructions of the normal driving function corresponding to each controller output by each controller respectively, and determining a function weight of each controller for each normal driving function respectively; and performing fusion processing on the independent normal control instructions according to the function weight of each controller to obtain corresponding recombined control instructions, and sending the instructions to an actuator to control the vehicle to travel.

The invention relates to a casting molding sand regeneration uniform feeding method and device, and relates to the technical field of casting molding sand regeneration, the feeding device comprises a machine body and a feeding mechanism, and the feeding mechanism comprises a sand box arranged on the machine body and used for storing molding sand; the weighing unit is used for weighing the weight of the molding sand in the sand box in real time; and the feeding assembly is arranged on the sand box and is electrically connected with the weighing unit. Molding sand is weighed in real time through the weighing unit, the feeding assembly is opened to evenly input the molding sand into the jaw crusher to be crushed, and when the molding sand is input, the feeding assembly controls the input amount according to the molding sand weight fed back by the weighing unit, so that the input amount can adapt to crushing of the jaw crusher; and the risk of interruption or overload in the feeding process is reduced, and the crushing efficiency of the crusher and the quality of reclaimed sand are improved.

This invention discloses a real-time hierarchical scheduling method for Trusted Execution Environments (TEEs) of embedded devices in industrial control systems. This method targets the TEEs of embedded devices in industrial control systems, implementing a secure scheduler in a secure environment that performs real-time task scheduling solely based on priority, effectively ensuring the real-time availability of the system. Employing a two-layer hierarchical scheduling design, it decouples security and real-time performance, implementing a secure scheduler and an environment scheduler separately in the secure environment, reducing the complexity of the TCB. The method restores the secure or non-secure environment through the environment scheduler, reducing interaction between the two environments while ensuring system collaboration and improving system security. Based on event-driven principles, this method sets secure timers according to predictable scheduling events, significantly reducing the number of interrupts during the scheduling process and substantially lowering the system's interrupt overhead.

The invention discloses a network camera data storage system and method based on wireless transmission, and belongs to the technical field of wireless transmission, and the system comprises a wireless link sensing module which is used for monitoring original parameters of each wireless transmission path in real time, calculating the original parameters, generating a real-time quality score of each wireless transmission path, and sending the real-time quality score to a server; outputting a link quality spectrum; the data processing module is used for acquiring original video data acquired by the network camera and outputting coded video data; the energy consumption decision module is used for generating an equipment working mode instruction; and the path execution module is used for selecting a main transmission path and an auxiliary transmission path from the link quality spectrum and transmitting the coded video data to a preset rear-end storage system through the selected path, and the method comprises the steps A1-A5. The main transmission path and the auxiliary transmission path are intelligently selected through the link quality spectrum, the long-term working stability of the system in a complex wireless environment is improved, and the service life of the system in the complex wireless environment is prolonged.

The utility model relates to a point gum all -in -one technical field discloses a kind of automatic mixing and point gum all -in -one of die -attaching glue, including support base plate, the support base plate top end is fixedly connected with support frame, the right end of support frame is fixedly connected with limit box, limit box inside is placed with storage barrel, the storage barrel top end is fixedly connected with material conveying pipe, the left end of material conveying pipe is drive-connected with suction pump, the bottom of suction pump is fixedly connected with point gum head.The utility model is first, die-attaching glue is poured into storage barrel.In the beginning of point gum operation, console starts suction pump, suction pump extracts die-attaching glue in storage barrel and is transmitted to point gum head by material conveying pipe, while, according to the position requirement of point gum, console controls servo motor to start.Servo motor drives transmission screw rod to rotate, and the moving sleeve on transmission screw rod moves in horizontal direction according to the rotation direction and the number of turns of screw rod.

The utility model relates to the technical field of network connection interfaces, and particularly discloses a magnetic type network connection interface, which is characterized in that a female interface is inserted into the outer surface of a male interface, a U-shaped sleeve is sleeved on the outer surface of the male interface, a triangular guide block is fixedly connected with the outer surface of the U-shaped sleeve, and an insertion positioning ring is sleeved on the outer surface of the female interface; a triangular installation guide groove is formed in the insertion positioning ring, the U-shaped sleeve is slidably sleeved with the insertion positioning ring along with insertion operation, a triangular guide block installed on the surface of the U-shaped sleeve is matched with the inner wall of the triangular installation guide groove, and the two ends of the triangular guide block and the two ends of the triangular installation guide groove are inclined surfaces. The triangular installation guide groove can guide and limit the moving direction of the triangular guide block, the angle error of the insertion operation can be avoided through the guide operation, the accuracy of the insertion connection operation can be ensured through the limiting operation with the guide function, and the insertion operation is smoother.

The present application relates to the technical field of visual detection, in particular to a cable joint box appearance detection method and system based on image processing, comprising the following steps: extracting indentation gray scale features and constructing a contour map, identifying direction mutation and marking rib turning points, extracting texture channels and demarcating gray scale ranges, extracting crack pixels to generate path atlas, and classifying crack forms to generate a list. In the present application, indentation gray scale features and edge coordinates are used to construct and restore boundary contours, thereby enhancing the accuracy of form recognition. Path direction analysis identifies direction mutation points, and the distribution of marked rib turning structures is combined to improve the ability to recognize complex contours. The arrangement direction of pixels and the gray scale gradient are used to demarcate and strengthen texture area discrimination, thereby ensuring the continuity of texture under fuzzy boundaries. Gray scale discontinuous pixels are used to construct crack paths and maintain connectivity, restore structure extension relationships, and support the classification of joint cracks by combining path mutation features and termination points, thereby improving positioning and discrimination depth.

The utility model provides a kind of AC electronic switch with remote control, including shell, circuit board and connector, the circuit board is installed in the inside of shell, the connector is set in the bottom of shell, the connector is connected with the circuit board inside, the connector is screw thread mouth, for being connected with external signal line, the shell is split type structure, the shell includes upper shell and lower shell, four connecting columns are equipped in the lower shell, the connecting column is fixed in the periphery of lower shell, the circuit board is fixed on connecting column by bolt;The shell inside is also equipped with heat dissipation device, the heat dissipation device is used for the heat dissipation effect of internal circuit board, by being provided with heat dissipation device in the inside of switch, air convection formed by fan, air inlet grille and exhaust hole in heat dissipation device, the heat generated by circuit board can be effectively discharged outside shell, ensure the temperature stability of electronic switch in working process, prolong the service life of electronic switch.

The application provides a new energy battery base rod piece machining equipment, which comprises a rack, a clamping and positioning mechanism, a machining main shaft and a tool magazine. The clamping and positioning mechanism comprises a clamping support table, two end positioning assemblies arranged on the clamping support table, a plurality of intermediate positioning assemblies arranged between the two end positioning assemblies and a rotating mechanism for driving the clamping support table to rotate. The two end positioning assemblies are used for clamping two ends of a workpiece to achieve axial fixation, and the intermediate positioning assemblies are used for clamping the workpiece to achieve radial fixation. The clamping and positioning mechanism is provided with a plurality of clamping and positioning mechanisms and is arranged side by side along a second direction. The machining main shaft is movably arranged on the rack along a first direction, a second direction and a third direction. The tool magazine comprises a tool storage rack and a plurality of tool storage sub-racks arranged on the tool storage rack. The tool storage rack is movably arranged on the rack along the first direction. The new energy battery base rod piece machining equipment can be used for batch efficient machining of metal long rod pieces of different specifications.

This invention provides a clock and data correction method and apparatus for a quantum key distribution system, applicable to the field of quantum communication technology. The method includes: processing the negotiation data based on N burst frames received via a negotiation optical channel to obtain N mismatch clocks and N mismatch data corresponding to the N mismatch clocks; performing sliding calibration on the N mismatch data using the N mismatch clocks based on a target data sequence to obtain N correction offset parameters; performing integer correction on the sub-mismatch clocks and sub-mismatch data of any protection word period within the (n+1)th target protection interval based on the integer offset parameters between the nth target protection intervals; and performing fractional correction on the sub-mismatch clocks and sub-mismatch data of other protection word periods within the (n+1)th target protection interval, excluding any protection word period, based on the fractional phase error parameters and frequency offset parameters of the nth target protection interval, to obtain the target clock and target data.

This utility model discloses a tongue wound moistening device, including a cover, a waterproof layer, gauze, and an infusion set. Ear loops are fixed to both ends of the cover. The waterproof layer is fixed to the inner surface of the cover. Velcro hooks are fixed to the four corners of the waterproof layer. The gauze is attached to the Velcro hooks. A guide tube is provided on the cover. One end of the guide tube is connected to the infusion set, and the other end passes through the cover and the waterproof layer and connects to the gauze, guiding the moistening solution from the infusion set into the gauze through the guide tube. The tongue wound moistening device provided by this utility model provides a firm fixation of the gauze, good wound moistening effect, and convenient gauze replacement, resulting in better tongue wound moistening and improving the patient's medical experience.

This invention discloses a cross-interface low-latency video transmission system and method for wearable navigation terminals. The system includes a capture and encoding end, an inter-board transmission end, a receiving and forwarding end, a network output end, and a back-end access end. The transmission steps are as follows: generating a video stream; segmenting it into data packets and sending them; the receiving and forwarding end outputting a READY signal; the receiving and forwarding end performing header parsing, integrity verification, reassembly, and cache writing on the data packets; the receiving and forwarding end extracting and caching parameter set information; when a new client connects, it enters a random access waiting state, and after detecting a decorable access point, it sends parameter set information and subsequent video data; the video data is output to the back-end access end in an adapted form; when slow client read, transmission obstruction, or cache backlog is detected, back pressure resynchronization is performed. This invention can achieve low-latency, recoverable video transmission under low-bandwidth inter-board link conditions, and is compatible with original TCP access and WebSocket / JPEG access while keeping the underlying link unchanged.

The invention discloses an SRv6 network dynamic path optimization method and system fused with fault prediction, and the method comprises the steps: obtaining the real-time performance data and topological structure information of an SRv6 network, and carrying out the abnormality recognition and positioning based on the real-time performance data; constructing a heterogeneous graph comprising a physical topology layer and an SRv6 logic layer; outputting a fault probability prediction value and a potential fault type of each link through a pre-trained link fault prediction model; defining a comprehensive optimization cost function, and calculating an optimal main path and an optimal backup path based on the comprehensive optimization cost function; obtaining a corresponding Segment list, and issuing the Segment list to a source node to realize switching of traffic to a new path; and evaluating the real-time performance of the new path, and feeding back evaluation result data to the link fault prediction model for iterative training of the link fault prediction model. According to the scheme, the link fault is predicted by sensing the network state and the pre-training model in real time, and conversion from passive response to active fault avoidance is achieved.

This invention relates to the field of computing power scheduling technology, and discloses an intelligent scheduling method and system for heterogeneous resource computing power. The method performs real-time status monitoring of heterogeneous computing resources, acquiring resource status parameters such as computing unit utilization and memory occupancy; it collects task attributes and user request parameters from the task queue, and processes historical task data based on a genetic algorithm optimization model to perform task demand prediction, generating predicted demand parameters. A dependency graph containing resource unit nodes and communication link edges is constructed using a resource topology analysis tool. The predicted demand parameters are input into a scheduling priority classifier trained by a graph neural network to identify the actual scheduling priority. Based on this priority, resource conflict prediction is performed, and the task feature vector is combined with the conflict resolution module of a fuzzy logic decision-maker to output actual conflict resolution parameters. Finally, a scheduling scheme containing resource allocation sequences and execution schedules is generated.

The application relates to a powder screw conveying device and relates to the calcium carbonate powder production and processing technical field, which comprises a conveying pipe assembly, a shaftless spiral blade and a driving assembly. The application reduces the adhesion of calcium carbonate powder by the anti-adhesion coating of the conveying pipe body inner wall, reduces the plugging probability, adopts the differential pitch design of the feeding section, the middle section and the discharging section of the shaftless spiral blade, cooperates with the rotating base support, improves the conveying pressure stability, reduces the interruption, the shaftless design is suitable for the easily-wound powder, the frequency conversion motor in the driving assembly is driven through a worm and a worm wheel, the rotating speed is flexibly adjusted to adapt to different powders, the conveying amount fluctuation is relieved, the detachable top cover is combined with the sealing ring and the convex block in the groove, the sealing is enhanced, the leakage is reduced, and the cleaning is convenient, the bearing base reduces the rotating friction to guarantee the stability, the connecting seat is convenient for butt joint with a production line, the overall conveying efficiency stability, adaptability and maintenance convenience are improved, and the problems of plugging, fluctuation and continuity of the existing device are solved.

This utility model relates to the field of audio and video equipment technology, specifically a modular audio and video repeater connection structure. It includes a housing with a detachable sealing cover on the top. Inside the housing are several repeater modules connected in series. Each repeater module has an input terminal on one side and an output terminal on the other. One end of each output terminal has a docking block, and the other end has a docking slot. Adjacent output terminals are connected via the docking block and the docking slot. The repeater modules are locked in place by a locking assembly. This modular audio and video repeater connection structure effectively solves the problem of combining repeater modules in traditional audio and video transmission equipment, demonstrating significant technical advantages. The housing contains several repeater modules that can be connected in series, allowing users to freely increase or decrease the number of repeater modules and flexibly adjust their combination according to the actual needs of signal processing capabilities and transmission distance in their usage scenarios.

The application provides a measurement processing method and device and a storage medium. On the terminal side, the method comprises: determining to perform an SDT; and changing a measurement operation to be performed by the terminal in an idle state or an inactive state during the execution of the SDT. The change of the measurement operation to be performed by the terminal in the idle state or the inactive state comprises one or more of the following: changing a measurement operation to be performed by the terminal in the idle state or the inactive state for cell reselection; and stopping a first measurement to be performed by the terminal in the idle state or the inactive state, the measurement result of the first measurement being used to assist the terminal in the active state to configure DC or configure CA. Thus, the terminal in the idle state or the inactive state changes the measurement in the current state during the execution of the SDT, reduces unnecessary terminal behavior, reduces terminal power consumption, and further reduces the influence of the measurement of the terminal in the current state on the SDT, and reduces unnecessary interruptions in the SDT.

The utility model provides a control system and a photovoltaic panel cleaning robot system. The control system comprises a warning lamp module, a sensing signal acquisition module and a voice warning module, wherein the warning lamp module and the sensing signal acquisition module are arranged in a cleaning robot, and the voice warning module is arranged in remote control equipment. For any one of the ultrasonic sensing devices, the sensing signal acquisition module comprises a corresponding switch sub-module and a serial port conversion sub-module. The warning lamp module is electrically connected with the first control module and is used for receiving warning control information generated by the first control module according to the serial port signal; and the second control module establishes short-range communication connection with the first control module through the second communication module and the first communication module, and is used for receiving warning control information generated by the first control module according to the serial port signal. According to the control system, distance sensing, real-time multi-form warning and effective information transmission are provided, the effect of distance detection is brought into full play, and smooth proceeding of cleaning operation and equipment safety are effectively guaranteed.

This utility model relates to the field of extruder screw technology and discloses a screw-separated double-barrier pin-type mixing structure, including a screw with screw ribs on its surface. The front section of the screw is configured as a feeding section, and the middle section of the screw ribs includes a main screw rib and a secondary screw rib. This utility model, through the separation-type double-screw rib design composed of the main and secondary screw ribs, allows the material to be fully tumbled to the B section after being heated and compressed in the A section. This process creates an effective separation effect, enhancing the plasticizing effect of the material and ensuring the uniformity of the molten material. By evenly arranging pins around the bottom diameter of the screw ribs, the material can be effectively stirred and mixed, further improving the mixing effect, especially when dealing with high-viscosity materials, improving the uniformity of mixing and ensuring the consistency of the final product quality.

The utility model discloses a KU wave band band-pass waveguide filter comprising a lower seat which is internally provided with a ripple filtering groove penetrating through two sides; the upper cover is buckled at the top of the lower seat and is fixed, so that the corrugated filtering grooves are encircled to form a single filtering channel; the input end is arranged at one end of the filtering channel; the output end is arranged at the other end of the filtering channel, and the filtering channel can be communicated end to end under the action of the input end and the output end; the impedance transformer is arranged at the input end of the filtering channel; the impedance transformer comprises at least two right-angle bosses formed on one side wall of the lower seat. According to the KU wave band band-pass waveguide filter provided by the utility model, through the arrangement of the lower seat and the upper cover, a single filtering channel can be formed between the input end and the output end, and the inner side plane of the upper cover is attached to the top of the lower seat for assembly, so that the filtering channel can be formed, and meanwhile, the overall size can be reduced.

The utility model discloses a portable battery structure for a sound box, and relates to the technical field of sound box accessories. The device comprises a battery body, wherein the outer surface of the battery body is matched with a battery slot formed in the sound box; the bottom end of the battery body is fixedly provided with a power connection socket used for being electrically connected with a loudspeaker box, and the other end of the battery body is fixedly connected with a drawstring, so that the battery body can be conveniently pulled out of a loudspeaker box battery slot through the drawstring. According to the device, a traditional vibrating needle type electrode is replaced by a plug-in type electrode structure of the power connection plug and the power connection socket, so that the stability of electric connection between the battery and the sound box is improved. Compared with an elastic needle type electrode, the plug-in type electrode is more compact in structure, can better resist external vibration and impact, and meets the requirements of users.

The embodiment of the invention provides a port cache dynamic adjustment method and device and switching equipment, and relates to the technical field of digital communication. According to the method, multi-dimensional indexes such as used caches, current and historical cache utilization rates and time delays of multicast ports are collected in real time, and the comprehensive perception capability of the port running state is constructed. Redundant resources are dynamically released based on actual cache occupation conditions, and congestion risks are identified in advance in combination with load trend prediction, so that dynamic addition and allocation and cross-port on-demand allocation of cache resources are realized. According to the mechanism, resource stiffness caused by traditional static allocation is broken through, and the resource utilization efficiency and forwarding stability of the switching equipment in a video multicast scene are improved. Through dynamic capacity expansion, the capability of a port to deal with burst traffic is obviously enhanced, the packet loss probability caused by insufficient buffer areas is effectively reduced, the interruption or lagging of multicast video streams is reduced, the fluency and definition of video transmission are guaranteed, and the user experience and the network service quality are comprehensively improved.

The utility model discloses an ancient book and painting restoration device relates to the technical field of cultural relic restoration equipment, including the restoration device main part, the restoration device main part inside's all around fixed mounting has the support column, and the outside of support column swing sleeve joint has the support frame. The utility model discloses through the ancient book and painting to be restored to be laid in the restoration panel, rotates both sides screw rod, and the realization of pre -fixation is pushed to the clamping plate clamping picture edge, and the electric slide rail of restoration panel both ends top provides horizontal moving track for the moving plate, and drives the moving plate to carry out horizontal movement, and when the hydraulic telescopic link drives the pressing plate and press down to contact the ancient book and painting surface, and the horizontal movement of pressing roller along with the moving plate rolls on the paper surface, and aiming at the dead fold of picture surface difficult to handle, gradually smooth to both sides through the pressure of continuous rolling, need not rely on external force and forcibly pull and stretch, can avoid the tearing of paper of dead fold area because of uneven stress, prevent the pigment of wrinkle place from falling off because of forcibly stretching, guarantee picture picture integrity.

Embodiments of the present disclosure disclose a method for interlocking control of management equipment applied to multi-site construction engineering across regions. A specific embodiment of the method includes: obtaining a set of equipment state information, a set of equipment data, and a process task tree; performing process node extraction processing on the process task tree to obtain a set of process node information; performing hierarchical demand analysis processing on the work application information and the set of process node information to generate a sequence of permission information; performing state hierarchical matching processing on the sequence of permission information to generate a sequence of to-be-assigned permission information; performing work feature analysis processing on the set of equipment data to obtain a set of work feature information; performing permission allocation processing on the sequence of to-be-assigned permission information and the set of work feature information to obtain a set of permission allocation information; generating permission verification information; and sending the permission verification information to a construction management system to execute a management equipment mechanical unlocking action. The embodiment relates to the field of computer technology, and reduces the abuse of management equipment and the interruption of equipment permissions.

This application discloses a method and device for correctable error handling in memory, relating to the field of server technology. The method includes dynamically traversing the data type and historical access frequency of each memory storage unit during server startup. This allows for the determination of data sensitivity levels based on the data type of the storage unit, and the determination of correctable error thresholds based on the data sensitivity levels and historical access frequencies. When the correctable error count reaches the correctable error threshold, correctable errors in the storage unit are processed according to the data sensitivity level. This allows for setting differentiated fault tolerance thresholds for storage units with different sensitivity levels and executing corresponding hierarchical processing strategies. While ensuring the reliability of highly sensitive data, this significantly reduces unnecessary error handling overhead for low-sensitivity data, optimizes the allocation of system reliability resources, and achieves a simultaneous improvement in overall operational performance.

This disclosure relates to the field of wearable electronic device technology, and discloses a smart ring and its reminder control method. The smart ring includes a ring shell, a health monitoring sensor disposed on the inner surface of the ring shell, at least two electrodes, an electrical stimulation driving circuit electrically connected to the electrodes, and a control circuit. The control circuit determines the user's physiological state based on physiological monitoring data collected by the health monitoring sensor, and when a preset target physiological event is determined to occur, controls the electrical stimulation driving circuit to output a micro-electrical stimulation sequence corresponding to the target physiological event through the electrodes to provide a reminder to the user. Therefore, health monitoring results can be promptly fed back to the user on the ring itself in a low-power manner, improving the timeliness and distinguishability of the reminder.

The invention discloses a data center network service fault pre-evaluation method and system, and relates to the technical field of communication, and the method comprises the steps: constructing a target Bayesian network based on a preset data center network structure; for each service path in the data center network structure, the target Bayesian network is controlled to reasone the fault posterior probability of each node through a sampling-based approximate inference algorithm and a preset conditional probability table, and the conditional probability table comprises the fault prior probability of each node; determining the joint probability of each service path according to the fault prior probability and the fault posterior probability of the node; taking the target service path with the highest joint probability as a predicted fault path; wherein the target polynomial energy function is used as a reception-rejection decision criterion of the sampling-based approximate inference algorithm, and the target polynomial energy function comprises network operation state parameters. According to the invention, active prediction of the network service fault path can be realized, and a data basis is provided for implementing fault advanced protection.

The present application relates to functional textile finishing and electromagnetic shielding material technical field, specifically relates to a kind of low resistance-increasing flame-retardant post-processing fluid suitable for metallized polyester conductive cloth.The technical problem that the conductivity and flame retardance are difficult to obtain in the flame-retardant treatment of metallized conductive cloth is solved.The post-processing fluid is composed of halogen-free phosphorus-nitrogen intumescent flame retardant, silicone film-forming agent, metal layer corrosion inhibitor, conductive bridging component, wetting dispersant and deionized water.The post-processing fluid uses the bridging action of silicone coupling agent to make flame-retardant component preferentially enriched on the surface of polyester fiber, and uses trace conductive bridging component to form point-type conductive connection at metal plating micro-gap, thereby reducing the surface resistance increase caused by flame-retardant treatment.

The utility model belongs to the technical field of roller bits, and particularly relates to a six-mode screw drill universal shaft which comprises an upper movable hinge, a ball seat, a ball cap, a transmission key, an upper locking sleeve, a rubber sealing sleeve, a hexagonal connecting rod, a lower indentation sleeve and a lower movable hinge. The ball seat is embedded in the upper movable hinge; the ball cap is inserted into the top end of the hexagonal connecting rod and makes contact with the ball seat through a spherical surface. The top of the hexagonal connecting rod is connected with the upper movable hinge through a hexagon; the transmission key is arranged between the hexagonal connecting rod and the upper movable hinge; the upper locking sleeve is connected with the upper movable hinge through threads; the rubber sealing sleeve is connected with the hexagonal connecting rod and the upper locking sleeve and is used for ensuring that the transmission part works under the condition of sealing grease; the connecting structure of the lower end is identical to that of the upper end. Compared with point-line contact of a traditional petal-type universal shaft and line-line contact of a traditional ball-column-type sealing universal shaft, the universal shaft has the advantages that the anti-shearing face is greatly enlarged, the torque transmission capacity is remarkably improved, and the universal shaft can better adapt to the large-torque operation environment through a face-face contact mode.