206results about How to "Versatility" patented technology

The invention discloses a configuration method and system for a network-constructing type energy storage system for suppressing broadband oscillation, and relates to the technical field of new energy power generation grid connection and power system stability control. The invention aims to solve the problems that broadband oscillation is easily caused when a new energy field station is connected into a weak power grid, an existing suppression method affects equipment characteristics or needs additional investment, and netting type energy storage locating and sizing lacks scientific guidance. The method comprises the following steps: firstly, simplifying a system comprising a new energy station, a constructed network type energy storage system and a power grid, then carrying out impedance modeling on the two systems (reserving complete impedance characteristics of energy storage), and judging the stability through an impedance analysis method; and the optimal capacity is determined at a single position, and then the global optimal capacity and the corresponding position are determined by traversing the positions, so that low-cost broadband oscillation suppression is realized.

The invention discloses a numerical control machine tool spatial position calculation method based on BP neural network correction. The method comprises the following steps: establishing a spatial error geometrical relationship model; planning a measurement track and measurement points, presetting theoretical position coordinate data of each measurement point, and obtaining actual measurement position data; geometric error parameters are obtained based on actual measurement position data and substituted into the space error geometric relation model, and a machine tool space error model is obtained; obtaining error calculation coordinate data in combination with the theoretical position coordinate data and a machine tool space error model; the theoretical / actual measurement / error calculation position coordinate data are used for BP neural network training, and a neural network correction model is obtained; and correcting the position coordinate data of the machine tool space points by using the neural network correction model to obtain corresponding actual position coordinate data. According to the method, a technical path of decoupling an error source through geometric modeling, fitting nonlinear features through a BP neural network and optimizing a model through data driving is adopted, and a solution with theoretical preciseness and engineering practicability is provided for high-precision machining of the machine tool.

The utility model discloses a general section bar hole site auxiliary processing device, which comprises a base plate, a positioning pressure plate and a pressure plate, the base plate is provided with a plurality of positioning holes and a plurality of threaded holes, the plurality of positioning holes are linearly distributed, the plurality of threaded holes are also linearly distributed, the straight lines formed by the plurality of positioning holes and the plurality of threaded holes are parallel to each other, positioning pins are inserted in the positioning holes, and the pressure plate is arranged on the base plate. The positioning pressing plate is positioned through the positioning pin, a to-be-machined part is clamped on the bottom plate, the bolt penetrates through the through hole in the pressing plate to be matched with the threaded hole in the bottom plate, and the to-be-machined part and the positioning pressing plate are fixed on the bottom plate; the device has the advantages that positioning and locking are achieved, high precision is guaranteed, and parts are effectively prevented from deviating in the machining process; the efficiency is improved through one-time installation, hole site machining can be completed only through one-time installation, repeated clamping of parts is avoided, installation errors caused by repeated clamping are reduced, meanwhile, the tool has universality, hole site machining can be carried out on the same profile only by replacing the positioning pressing plate, and the tool machining cost can be saved.

The application provides a combined guide vane and a ship, which achieves the basic requirement of improving the flow field around the stern and propeller and improving the propeller efficiency, reduces the stress on the structure by arranging the guide vanes in the axial direction, increases the energy saving effect, and avoids the negative influence of the axial misalignment arrangement on the propeller pulsating pressure by aligning the end. In addition, by limiting the circumferential length of the guide vane, the resistance generated by the device is small, that is, the resistance and structural performance of the energy saving device are improved; through the combination of various schemes of the guide vane, the guide vane, the connecting piece and the flow guide fin, and the establishment of the design method matched with each combination of the application, the optimal energy saving effect can be achieved for different ship types and navigation conditions, the effective complementation among multiple structures is realized, and the universality is strong.

The application provides a disease-related lncRNA screening method based on GWAS SNP and transcript annotation cross alignment, and belongs to the technical field of bioinformatics and clinical medicine. The application is based on the human hg19 (GRCh37) genome assembly version, all exons of all GENCODE lncRNAs are intersected with NHGRI / EBI significant disease-related GWAS SNP coordinates through the UCSC Genome Browser Table Browser tool, and high-confidence targets are obtained through hierarchical screening. The screening method can accurately identify functional transcripts strongly related to disease phenotypes from tens of thousands of lncRNAs, and overcomes the problems of strong randomness of traditional lncRNA research targets and low verification efficiency.

The application discloses a kind of storage module detection circuit, method, device and medium, it is related to storage module detection technical field.The circuit includes: data communication module;Data analysis and verification module are electrically connected with data communication module;Interface control module is electrically connected with data communication module and data analysis and verification module respectively;Data communication module is used to receive the data packet sent by host, and the data packet meeting protocol is sent to data analysis and verification module;Data analysis and verification module are used to analyze data packet, obtain analysis result;Interface control module is used to carry out read operation or write operation to storage module according to analysis result, receive the response result of storage module;Data analysis and verification module are used to check response result, obtain verification result, and send verification result to data communication module;Data communication module is also used to send verification result to host.The circuit can realize detection and result feedback to storage module by simple command.

The application discloses a general formwork for concrete prefabricated components and a construction method, and relates to the technical field of bridge construction. The general formwork for concrete prefabricated components comprises two general formwork components. Each general formwork component comprises at least one general formwork structure. Each general formwork structure comprises a flange plate formwork structure, a partition plate formwork structure and a support frame. One end of the flange plate formwork structure is connected with one end of the partition plate formwork structure. The support frame is provided with a first adjusting structure and a second adjusting structure. The first adjusting structure is used for adjusting the slope of the flange plate formwork structure. The second adjusting structure is used for adjusting the angle of the partition plate formwork structure. The general formwork for concrete prefabricated components has the general property and can satisfy the prefabrication of flange plates with different slopes.

The utility model discloses an automatic overturning type galvanization device which is composed of a cathode main body, an auxiliary anode, an overturning mechanism and a positioning mechanism. The cathode main body comprises a hook, a cathode main rod, a first insulating plate and a second insulating plate. The hook, the first insulating plate, the second insulating plate and the cathode main rod are fixedly connected. The auxiliary anode and the insulating plate are connected in the form of a sliding pair and can be detached. The overturning mechanism comprises an air bag, a part rack and an overturning shaft. The air bag and the part rack are fixedly connected. The part rack and the overturning shaft are fixedly connected. The overturning shaft and the cathode main rod constitute a rotary pair. The positioning mechanism comprises a right limiting rod and a left limiting rod. Both of them are fixedly connected with the cathode main rod and used to restrict the rotation angle of the overturning mechanism. The part rack is used to place the products to be galvanized. The opening end faces right. The galvanization tool device is connected with a travelling crane system with the functions of rising and falling. The travelling crane system is connected with the roof.

This utility model relates to a grinding and positioning fixture for the outer shape of an oil nozzle needle valve body. The fixture includes a headstock tip and a tailstock tip. The conical structure of the tail section of the oil nozzle needle valve body is aligned and placed into the mounting hole at the left end of the tailstock tip. The needle valve body is directly engaged with the opening of the head section of the needle valve body through the headstock tip for transmission and rotation. Sufficient operating space is left between the surface of the oil nozzle needle valve body and the fixture. The grinding wheel can simultaneously approach and grind the outer diameter of the head section, the outer diameter of the middle section, and the outer diameter of the tail section without interference, realizing the simultaneous completion of grinding of multiple parts, improving production efficiency. Furthermore, this fixture structure is universal for needle valve body parts with different specifications of surface positioning holes, reducing changeover time and tooling costs, and fundamentally eliminating the problem of mandrel breakage caused by over-positioning of the surface positioning hole and the mandrel, thus improving the stability and reliability of the processing.

The application provides a multi-protocol data transmission method, system and conversion system, wherein the method comprises the following steps: an MCU receives data of multiple protocols from an Ethernet, including MVB protocol data and non-MVB protocol data; data corresponding to the protocols is extracted from the multiple types of data, and is packaged into data packets respectively and sent to an FPGA; the FPGA receives the data packets from the MCU, extracts data corresponding to the protocols from the data packets, and processes the data by using the corresponding protocols respectively; MVB data processed by using the MVB protocol is sent to an MVB communication processor; the MVB communication processor receives the MVB data sent by the FPGA, and sends the MVB data to an external MVB device. The application adopts three processing units to respectively execute respective steps and cooperatively process, so that the purpose of realizing conversion of data of different protocols without interrupt processing is achieved.

The application discloses a kind of ball grid array package chip solder ball bubble defect automatic detection method and system, it is related to chip intelligent detection technical field, the method is guided by designing semantic cross-layer fusion framework, realizes multi-scale feature balanced fusion in neck network by introducing feature alignment and redistribution module, strengthens small target details and semantic information using local semantic enhancement module, and the positioning accuracy of bubble is optimized in combination with smooth geometry positioning loss function.The application significantly improves the detection capability of small, fuzzy and occluded bubbles, has strong robustness and generalization, and can be widely used in solder ball bubble, material porosity and surface defect industrial vision detection scene.

This utility model discloses a high-voltage socket with a cooling channel and an X-ray generator. The high-voltage socket with a cooling channel includes: a socket body, formed into a columnar structure with a guide portion extending circumferentially from one end; a receiving cavity defined within the socket body extending axially and open at one end for accommodating a high-voltage cable plug; a cooling channel defined within the socket body; and an inlet and outlet port defined within the guide portion, communicating with the cooling channel. Coolant is introduced into the cooling channel through the inlet port and discharged from the cooling channel through the outlet port. An anode is disposed at the other end of the socket body and communicates with the cooling channel to be cooled by the coolant. The high-voltage socket with a cooling channel according to the embodiment of this utility model not only facilitates the entry and exit of coolant within the socket body but also facilitates sealing and installation, demonstrating feasibility and versatility.

The invention discloses a mobile robot control method and system based on multi-source fusion dynamic trajectory re-planning. The method comprises the steps that vehicle kinematics data and environment characteristic observation data are acquired in real time; state prediction is carried out based on a kinematic model; performing multi-dimensional feature extraction and confidence evaluation on the environment features; carrying out measurement updating by utilizing extended Kalman filtering; performing time domain differential analysis on the posterior state; when the state jump is detected, generating a smooth dynamic transition track by taking the current posterior state as a starting point; acquiring predicted curvature information of the front path from the global map; inputting the confidence score and the predictive curvature into a fuzzy logic controller, and calculating the adjustment amount of PID control gain; and calculating a motor control instruction based on the dynamic transition trajectory by using an adaptive PID algorithm, and outputting a final control signal. According to the method, high-precision positioning and stable control can be realized only by depending on a low-cost vehicle-mounted sensor, the cost is low, the universality is high, and the method is suitable for various complex indoor scenes.

The invention discloses a sparse sensor optimization layout method for battery thermal safety monitoring. The method comprises the following steps: constructing a full-working-condition temperature field data set through high-fidelity simulation data; defining a multi-task loss function fusing the overall reconstruction error, the hotspot monitoring error and the spatial dispersion; and with minimization of the loss function as a target, an optimal sensor distribution point is automatically searched by adopting an optimization algorithm. According to the method, the problems of sensing blind areas and early warning lag existing in empirical layout are solved, high-precision temperature field reconstruction and early thermal safety early warning can be achieved with the minimum number of sensors, the reliability is high, the cost is low, and the method is suitable for thermal management design of various lithium ion battery systems.

The application relates to the technical field of integrated circuits, and discloses a digital auxiliary adaptive zero-crossing detection circuit. The circuit comprises a digital auxiliary comparator module, a digital logic module, a detection discrimination module and a counter module. The digital auxiliary comparator module compares a switch node voltage signal with a power ground signal to generate a first output signal; the digital logic module processes the first output signal to generate a zero-crossing detection signal and control the turn-off of a power tube; the detection discrimination module receives a second output signal of the digital logic module and the zero-crossing detection signal to generate a digital tuning signal; and the counter module receives the digital tuning signal to generate a six-digit digital signal, dynamically adjusts a resistance array in the digital auxiliary comparator module, adaptively adjusts the flip offset of the comparator by changing the resistance value of the resistance array, and thus changes the turn-off timing of the power tube. The application can accurately control the turn-off timing of a synchronous rectification power tube, reduce the reverse current and reduce the dynamic power consumption.

This utility model relates to the field of workpiece processing technology, and discloses a positioning component and a turning device. The positioning component includes a base plate assembly. At least one workpiece groove is formed on the first side plate of the base plate assembly. The workpiece groove is used for embedding and fixing the first end of the workpiece while exposing the second end for processing. An air supply connector is formed on the base plate assembly, and an air outlet is provided in the workpiece groove. The air supply connector and the air outlet are connected by an air duct. This design combines versatility and safety, achieving reliable workpiece fixation while simplifying the structure, avoiding stress damage during the turning process, and adapting to the load-bearing and turning requirements of workpieces of different shapes. It solves the technical problem that existing fixtures have limited applicability and are prone to workpiece damage during movement.

The utility model relates to the field of display products, in particular to a display stand, which solves the problem that the existing display stand is insufficient in universality, and comprises a platform component and more than one stand ring arranged on the platform component, the platform component is formed by splicing a plurality of sub platforms, and the sub platforms are arranged on the stand ring. Each sub platform comprises a metal frame base, an inner pad embedded in the metal frame base and a cover pad covering the upper surface of the inner pad, the metal frame base is provided with an insertion port, and each frame ring is provided with an insertion piece matched with the insertion port; the plug connector penetrates through the cover pad and the inner pad to be installed in the plug connector and embedded in the cover pad.

This invention discloses a rapid prediction method for rail rolling contact fatigue damage in the field of rail damage prediction technology. The method includes establishing a three-dimensional elastoplastic wheel-rail cyclic rolling contact finite element model, improving the cyclic plastic constitutive model, and simulating the stress-strain evolution of the rail. A rail stress-strain sample library is generated through parametric sampling and batch calculation. A Physically Constrained Generative Adversarial Network (PC-GAN) is constructed, embedding physical constraints such as contact force conservation and energy consistency into the loss function to achieve rapid and high-precision mapping from operating parameters to the stress-strain field. Based on the PC-AN prediction results, cumulative damage and fatigue life are calculated using an incremental multiaxial fatigue damage model, and a damage distribution map of the entire rail line is drawn, identifying high-risk sections. This invention deeply integrates physical modeling with intelligent algorithms, achieving an order-of-magnitude improvement in rail fatigue damage assessment efficiency while ensuring prediction accuracy, providing efficient and reliable technical support for rail life assessment and maintenance decisions across the entire rail line.

This invention discloses a method for fabricating a Nano-QLED device based on two-photon lithography. The Nano-QLED device includes a quantum dot emitting layer. The method for fabricating the quantum dot emitting layer comprises: splitting a femtosecond laser beam into multiple sub-beams using a multi-focus parallel two-photon lithography method; the multiple sub-beams acting on a carrier transport layer to form a nanoscale patterned insulating structure; the insulating structure being made of a material with two-photon response characteristics; and filling the gaps between the insulating structure with nanoscale emitting quantum dots to form the quantum dot emitting layer. This fabrication method can meet the requirements for large-area and high-precision processing.

The invention relates to the technical field of direct-current fans, and discloses a direct-current fan and a serialization design method.According to the direct-current fan and the serialization design method, general electromagnetic structure design of a series of direct-current fans is conducted through electromagnetic simulation optimization, magnetic steel surface magnetism is analyzed through a static magnetic field to determine the magnetic steel machining magnetizing inspection standard, and a boss in a shaft sleeve is adopted for replacing a clamping ring for limiting; a low-cost and standardized direct-current fan series structure is formed, and only the required performance output corresponding to the number of turns of the winding needs to be adjusted, so that low-cost and quick-response series product development is realized.

The utility model discloses an adjustable paper feeding mechanism of a flat printing machine, which belongs to the technical field of paper feeding of printing machines and comprises a paper storage box, one side of the top of the paper storage box is fixedly connected with a motor protection shell, a servo motor is fixedly connected in the motor protection shell, and the output end of the servo motor is fixedly connected with a bidirectional threaded rod. And supporting blocks are fixedly mounted in the centers of the two sides of the top of the paper storage box correspondingly. According to the adjustable paper feeding mechanism of the flat-plate printing machine, a servo motor is controlled to drive a two-way threaded rod to rotate, the two-way threaded rod is utilized to drive two fixing blocks to move, meanwhile, the fixing blocks drive an adjusting plate to slide in a paper storage box, and meanwhile, the adjusting plate slides on the outer arc face of a limiting rod; and by adjusting the position of the adjusting plate in the paper storage box, paper of different sizes can be conveniently put in, so that the paper feeding mechanism can store more kinds of paper, and the universality of the paper feeding mechanism is wider.

The invention discloses an image decoding method, system and device and a storage medium, and relates to the technical field of image coding and decoding. The method comprises the following steps: running a fragment shader to enable the fragment shader to obtain a plurality of pieces of compressed data; and based on the plurality of compressed data, determining a color value of each fragment in the drawing area of the fragment shader as a color value of each pixel in the first image. The method adopts the fragment shader program in the graphic rendering pipeline to realize complete decoding of the image, can be applied to any equipment supporting the conventional graphic rendering pipeline, has no requirements on a computing pipeline and a special hardware unit for the equipment, and has extremely high universality.

The application discloses a kind of foam fluid inhibits soil body permeability damage test device and its test method, the device includes main structure, variable head control unit, pore pressure monitoring unit, computer analysis unit, foam fluid injection unit, foam fluid injection unit includes liquid input module, gas input module, foam generator, liquid input module and gas input module are connected with foam generator, and foam generator output end is connected with main structure;The test method includes assembling device, fills sand sample in sand tank, and carries out test by injecting foam fluid into sand tank;Water head is promoted gradually, and after seepage is stabilized, next stage water head test is carried out, and the change process of the permeability damage area of sand sample top surface and the change of foam fluid occurrence range are recorded, and pore pressure monitoring unit is used to monitor the pore pressure in sand sample in real time, when permeability damage area and water inlet chamber are connected, stop test.The application can be used to verify and evaluate the effect of foam fluid inhibiting soil body permeability damage.

The application provides a continuous production method and system of calcium hydroxide with high whiteness and high specific surface area, and relates to the technical field of limestone deep processing. The continuous production method comprises the following steps: step one: continuously adding quicklime particles into the inlet of a primary digester, continuously adding digestion water and an additive into the inlet of the primary digester, and carrying out premixing and pre-digestion under stirring conditions; step two: continuously introducing the discharge of the primary digester into a secondary digester, continuously adding digestion water and an additive into the inlet of the secondary digester, and stirring and digesting and aging; step three: the discharge of the secondary digester is sequentially introduced into a tertiary digester, a quaternary digester and a quinary digester for digestion and aging, and the product is obtained after grading by a grader. The method can continuously prepare calcium hydroxide with high whiteness and high specific surface area, and has the characteristics of simple process, short time consumption, remarkable effect and low energy consumption, and has been applied in actual production and has good use effect.

The invention discloses a hybrid photomultiplier coaxial output structure based on a microstrip line. The hybrid photomultiplier coaxial output structure comprises a semiconductor detector, a bonding wire, the microstrip line, a ground electrode, a lead pin, a medium, an outer conductor base and a detector lead pin. The semiconductor detector is used for receiving the photoelectrons converted by the photoelectric cathode and generating a current signal; the bonding wire is used for electrically connecting the semiconductor detector and the microstrip structure; the microstrip line and the ground electrode adopt gold-plated kovar alloy parts to form an in-tube microstrip structure; the guide pin and the detector guide pin are kovar alloy guide pins and form an inner conductor with a coaxial structure; the outer conductor base is a kovar alloy disc and forms an outer conductor with a coaxial structure; the medium is glass or ceramic. According to the coaxial output structure, a vacuum tube is of a 50-ohm microstrip structure, the exterior of the vacuum tube is of a 50-ohm SMA coaxial structure, and a complete 50-ohm coaxial line is formed by connecting a microstrip line and a guide pin together. The structure provided by the invention has the advantages of high transmission speed, small signal reflection and oscillation and the like, and is more beneficial to detection of ultrafast optical pulse signals.

The application provides a novel feature up-sampling method for semantic segmentation, which improves the resolution of an image by combining pixel reorganization Pixel Shuffle with an attention mechanism, prevents a chessboard effect, and avoids a 0 filling operation on unknown pixel points compared with a previous traditional up-sampling module; secondly, the attention mechanism is introduced to combine global information with local information, obtain a feature map with a larger receptive field and more detailed information, increase effective feature information, and realize the function of effectively improving the segmentation performance of the network. The application has universality, eliminates the limitations of previous methods by simply replacing all up-sampling modules, obtains more representative feature mappings, obtains an enlarged image with good features, makes the restored image obtain more feature information, and is beneficial to improving the segmentation result of the network model.

The utility model discloses an adjustable supporting arm structure for an electric tricycle, and relates to the technical field of tricycle supporting arms, the adjustable supporting arm structure comprises a fixing arm, the outer wall of the fixing arm is fixedly connected with a connecting structure, the inner wall of the connecting structure is slidably connected with a fixing bolt, and the outer wall of the fixing bolt is in threaded connection with a locking nut. A telescopic cavity is slidably connected to the outer wall of the fixed arm, a telescopic arm is slidably connected to the outer wall of the telescopic cavity, and an adjusting structure is fixedly connected to the outer wall of the telescopic arm. And long-distance adjustment depends on sliding adjustment of the telescopic arm and the telescopic cavity, and angle adjustment depends on cooperation of various structures, so that different vehicle types can be adapted, the assembly problem is effectively solved, the assembly speed is increased, the rework rate is reduced, and the production process is optimized.

The application belongs to the technical field of avionics, and discloses an ADS-B false target identification method. Statistical analysis is carried out based on ADS-B self information, and operation is carried out in combination with some other features of the received information; the method can be upgraded without additional hardware, and can automatically realize evaluation on the reality of the air ADS-B target; the method does not depend on secondary radar for identification, and can meet the application of small airplanes equipped with ADS-B IN.

The utility model relates to a tubular aeration device which comprises an aeration pipe, the aeration pipe is formed by sequentially connecting a plurality of aeration branch pipes, one end of each aeration branch pipe is sleeved with a connector, and the other end of each aeration branch pipe is provided with a pipe tail. The adjacent ends of the two aeration branch pipes are connected through the connector to complete the combined installation of the two aeration branch pipes, so that the combined installation of a plurality of aeration branch pipes is realized, the operation is simple and convenient, and the aeration branch pipes can be freely disassembled and replaced, have the characteristics of standardization, combination, universality and the like, and are convenient to disassemble and replace.