28results about How to "Speed block" patented technology

The utility model discloses polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer relates to chemical industry technical field. The polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer, including reactor main part, catalyst stacking unit, liquid distributor main part and gas distribution unit. The polycrystalline silicon and organic silicon high boiling pyrolysis reactor system of promoting gas solid liquid three -phase mass transfer, gas catalyst passes into the exhaust pipe through the communication groove, and then gas catalyst is evenly sprayed into the catalytic filler of loading net cylinder through the spray head, and the liquid raw material is evenly flowed through the catalytic filler of loading net cylinder through the liquid distribution port, so that the gas and solid catalyst are mixed in the loading net cylinder, the reaction rate is improved, and the uniformity of mixing is ensured, the mixing effect of liquid raw material and gas is improved, and the reaction and product generation are accelerated.

The utility model discloses a high-efficiency adjustable quantitative filling device which comprises a material hopper, a base, a supporting and fixing frame, an adjustable quantitative assembly and a movable intercepting assembly, the supporting and fixing frame is installed on the base, and the adjustable quantitative assembly is adjustably installed on one side of the supporting and fixing frame; the movable intercepting assemblies are arranged on the two sides of the adjustable quantifying assembly, a receiving hopper is arranged at the top of the adjustable quantifying assembly, a discharging pipe is arranged at the bottom of the adjustable quantifying assembly, and the material hopper is arranged above the receiving hopper; according to the quantitative filling device, the two sides are blocked in turn through the movable intercepting assembly, materials are evenly discharged, so that the material filling speed of the adjustable quantitative assembly is increased, the quantitative filling efficiency of the quantitative filling device is improved, meanwhile, the materials are not prone to being damaged, and the adjustable quantitative assembly can adjust the capacity of an adjustable measuring cup according to the filling specification.

The invention provides a new energy unit transient stability optimization method and system based on active feed-forward, and belongs to the field of new energy power generation. The system includes a current command generator and a current controller. The method comprises the steps of collecting terminal voltage and current of a unit, calculating active power and detecting a transient fault; when a fault is detected, generating an active current instruction through active feed-forward control based on power grid voltage information obtained by an active power signal, a fault voltage amplitude signal and phase locking; meanwhile, a reactive current instruction is generated; a current reference instruction is synthesized, and a converter is driven through closed-loop control to provide power support. According to the method, an active feed-forward mechanism is introduced, so that the new energy unit can respond to the power shortage of the power grid in advance, active and reactive support is quickly provided, frequency drop and power oscillation in the transient process are effectively inhibited, and the transient stability of the power system under the access of high-proportion new energy is remarkably improved.

The application relates to the technical field of small catheter production, and particularly discloses a small catheter automatic packaging device and process for a tunnel, which comprises a blanking mechanism, which is used for carrying small catheters and controlling the conveying of the small catheters; a transfer mechanism, which comprises a loading rack arranged at a blanking end of the blanking mechanism and a conveying assembly arranged on the loading rack, and the conveying assembly is used for conveying the small catheters falling into the loading rack; and a packaging mechanism arranged at an output end of the transfer mechanism, which is used for packaging the small catheters removed from the loading rack. The blanking mechanism, the transfer mechanism and the packaging mechanism are arranged, so that the whole process automation from small catheter receiving, temporary storage, conveying and packaging is realized. The blanking mechanism releases the small catheters in an orderly manner, the transfer mechanism receives and conveys the whole batch of small catheters, and finally the packaging mechanism completes the packaging work, the three mechanisms work cooperatively, a continuous automatic processing flow is formed, and the production efficiency is improved.

This invention relates to the field of membrane laying technology, and more particularly to a geomembrane laying device. It includes a frame with two sets of rollers symmetrically arranged on it. These rollers work together to support the geomembrane roll. A base plate is detachably mounted at both ends of the geomembrane roll on the frame. A primary spring is mounted on the base plate, with a truss plate above it. A secondary spring is mounted on the truss plate, and a support is mounted above the secondary spring. A horizontal insert is detachably mounted on the support, with a rod inserted into the insert. A top spring is positioned between the rod and the insert. This multi-stage buffer structure, combining primary and secondary springs, along with the top spring, achieves graded dispersion of elastic tension, significantly reducing the geomembrane pinching and tensile damage problems caused by the concentrated tension of traditional single-segment springs, thus ensuring the geomembrane's impermeability and service life.

According to the machine defect trend and historical action rapid query method and device, the medium, the program product and the terminal, integrated query and analysis functions are provided, and the machine management and fault handling capacity is remarkably improved. A user can easily inquire detailed actions and states of a machine and obtain a closed-loop result of a case so as to evaluate the effect of improvement measures, and all information is presented through a visual chart. The machine state chart and defect data analysis are integrated, a user can comprehensively understand the historical operation condition of the machine, identify abnormal reasons and effective countermeasures, and provide a basis for quick response, so that the wafer influence quantity is reduced, and the yield fluctuation is controlled. And real-time and historical data query is supported, so that the working efficiency is greatly improved, and the problems of low speed and tedious process of manual query are avoided. Meanwhile, the database comprehensively records detailed action information of the machine, data incompleteness is overcome, and a user can analyze defect distribution and directivity problems in a specific time period.

The application discloses a method and device for suppressing wide-frequency oscillation of a converter, equipment and a medium, and belongs to the field of power grid safety. The method is as follows: obtaining the fundamental equivalent impedance of the converter corresponding to the fundamental frequency and the wide-frequency equivalent impedance corresponding to each interference frequency through a preset interference signal; judging the damping characteristic of the converter according to the real part of the fundamental equivalent impedance; if the damping characteristic is positive, and the imaginary part of at least one wide-frequency equivalent impedance satisfies a preset resonance criterion, determining a resonance frequency band from all interference frequencies, and adjusting the current control loop parameters of the converter according to the resonance frequency band until all imaginary parts do not satisfy the preset resonance criterion, so as to realize wide-frequency oscillation suppression; wherein, the preset resonance criterion is determined according to the reactance characteristic of the wide-frequency equivalent impedance. The application can improve the accuracy of wide-frequency oscillation suppression of the converter.

The utility model discloses a feeder for accurately feeding rice and shrimps, which relates to the technical field of rice and shrimp feeders and comprises a feed box, a blanking hopper communicated with the bottom surface of the feed box, a cover plate hinged to the top surface of the blanking hopper, two flange pipes symmetrically communicated with two sides of the bottom end of the blanking hopper, and four supporting legs arranged on the peripheral side of the bottom surface of the feed box. A mounting platform is fixedly connected to the positions, located in the middle of the discharging hopper, of the four supporting legs, a scattering assembly is arranged on the mounting platform, a pneumatic feeder is arranged on one sides of the bottom ends of the four supporting legs, an output shaft of the pneumatic feeder is connected with one of the two flange pipes through an air supply connecting pipe, and a conveying pipe is arranged on the other flange pipe in a communicating mode. According to the utility model, the pneumatic feeder, the air supply connecting pipe and the flange pipe are matched, so that a stable power source can be conveniently provided; finally, the problems that traditional equipment is unstable in power output, uneven in feed scattering and difficult to meet diversified feeding requirements are solved, and the overall efficiency and effect of feed conveying and feeding are improved.

This application relates to the field of semiconductor technology. Embodiments of this application provide a surge negative charge driving circuit and a switching power converter for suppressing crosstalk, comprising: a driving module and a surge negative charge module; a first terminal of the driving module receives an input signal, and a second terminal of the driving module is connected to the gate node of a silicon carbide MOSFET, used to control the turn-on and turn-off of the silicon carbide MOSFET according to the input signal; a first terminal of the surge negative charge module receives the input signal, a second terminal of the surge negative charge module is connected to a power supply terminal, a third terminal of the surge negative charge module is connected to a ground terminal, and a fourth terminal of the surge negative charge module is connected to the gate node of the silicon carbide MOSFET, used to release negative charge to the gate node during the turn-off process of the silicon carbide MOSFET when the drain voltage of the silicon carbide MOSFET rises, causing Miller current to flow back to the gate node, in order to neutralize the Miller current. Highly efficient crosstalk suppression is achieved through the physical method of charge neutralization, without relying on a continuous negative voltage power supply, simplifying the system architecture and reducing costs.

The application discloses a hyperspectral imaging data processing method for analyzing rock-soil particle shape and mineral components, and comprises the following steps: acquiring hyperspectral data of a mineral particle to be measured, and preprocessing the hyperspectral data of the mineral particle to be measured; obtaining a mineral component test set based on the preprocessed hyperspectral data of the mineral particle to be measured; calling a generated mineral component model weight file to identify and classify the mineral component test set, obtaining corresponding end-member mineral components, and statistically obtaining mineral components and relative contents of each mineral component based on the end-member mineral components, so as to realize mineral component analysis of the mineral particle to be measured. The application can accurately realize joint analysis of the shape and the mineral components of the mineral particle.

The utility model relates to the technical field of necked water bags of smelting furnaces, and aims to solve the problems that the existing necked water bag of the smelting furnace is directly attached to the inner wall of the smelting furnace, the flowing path, speed and the like of molten glass can be changed by a crack and an attached included angle, and the homogenization and clarification processes of the molten glass are further influenced. The utility model provides a smelting furnace neck water bag which comprises a body, a connecting arm, a buffer plate and a sealing assembly. The partition plate is attached to the side wall of the body. The sealing assembly is arranged on the buffer plate in a covering manner; one end of the sealing assembly is connected with the connecting arm; the other end of the sealing assembly is connected with the body; according to the utility model, the body can be protected through the buffer plate, abrasion during installation is reduced, and molten glass can be prevented from flowing into a crack between the body and the inner wall of the furnace body through the sealing assembly, so that the flowing path and speed of the molten glass are avoided, and the homogenization and clarification effects of the molten glass are improved.

The utility model relates to a kind of injection molded part pin performance detection device, belong to the technical field of injection molded part detection equipment.It is sequentially transported to each detection station by transfer gripper assembly with injection molded part, the end face and side of injection molded part containing pin are sequentially detected in comprehensive manner in conduction, height and location degree, and the two-dimensional code for tracing is marked to qualified product, avoid artificial misjudgment, realize efficient, accurate quality detection and data management.

This invention relates to the field of interference source analysis technology, and provides a method and system for interference source analysis in partial discharge measurement of large oil-filled equipment, comprising: Step 1, acquiring the original acoustic signature signal of the large oil-filled equipment in operation; Step 2, preprocessing the original acoustic signature signal, including filtering, multi-stage downsampling, and acoustic signature data enhancement; Step 3, extracting the acoustic features of the preprocessed acoustic signature signal, including time-domain features, frequency-domain features, and time-frequency-domain features; and then performing multi-domain acoustic feature fusion; Step 4, based on the acoustic features, constructing a multi-domain feature-driven interference source classification model to identify and classify different types of interference sources; Step 5, based on the interference source identification results, suppressing interference in the original acoustic signature signal and extracting effective partial discharge signals. This invention can perform interference source analysis more effectively.

This invention discloses an automatic food bagging device, belonging to the field of food bagging technology. It includes: a material box, a drive platform, and a base arranged sequentially from top to bottom. A connected feed inlet is fixed to the top of the base, and several connected discharge outlets are evenly spaced along the circumference at the bottom of the material box. The material box is connected to the drive platform, and the drive platform is connected to the base, respectively, by several support columns evenly spaced along the circumference. This invention features several discharge channels and several collection boxes, which increase the discharge speed and thus improve the bagging speed. Simultaneously, a rangefinder measures the accumulation distance of material inside the collection boxes to determine if the material collection meets standards, eliminating the need for contact or pressure, thus extending service life. Furthermore, the upper and lower discharge channels and collection boxes are connected by a flipping drive mechanism and a rotating drive mechanism, enabling automatic material unloading and automatic resetting, preventing spillage and reducing enterprise costs.

The utility model discloses an atomization device. The atomization device comprises a shell, an atomization main machine, a suction nozzle and a sealing piece. The atomization main machine comprises a liquid storage space with an open end and an atomization assembly with an atomization channel; the sealing piece is provided with an air outlet channel connected with the atomization channel in a sealed mode and a liquid injection channel communicated with the liquid storage space. The shell comprises a main body part installed in the main body part and a connecting part. The connecting part at least partially abuts against the side, back on to the atomization main machine, of the sealing piece so that the sealing piece can seal the open end, and an installation space is formed in one side of the sealing piece. The suction nozzle is detachably installed in the installation space and comprises a suction channel communicated with the outside. When the suction nozzle is installed in the installation space, the suction channel is connected with the air outlet channel in a sealed mode, and the suction nozzle seals the liquid injection opening of the liquid injection channel. When liquid injection is needed, the suction nozzle is taken down, and the liquid injection channel is opened, so that liquid injection can be quickly carried out; after liquid injection is completed, the suction nozzle can be installed, the liquid injection channel is closed again, and the liquid injection device has the advantages of being high in liquid injection speed, good in sealing performance and the like.

The application relates to the technical field of magnetic control micro robots, and discloses a gradient force driving control method and system for multimodal motion of a micro robot, which introduces a Jacobian matrix to establish a magnetic field gradient expression under a non-uniform magnetic field, defines the contribution of a unit current to a magnetic field and a gradient magnetic field force to construct a mapping matrix, thereby constructing a linear homogeneous control equation which makes the direction of the magnetic field and the expected gradient magnetic field force collinear, performing singular value decomposition on a coefficient matrix of the linear homogeneous control equation to extract a null space base vector, and under physical constraints such as current amplitude limiting, magnetic field and gradient magnetic field force amplitude, maximizing the expected direction gradient magnetic field force through linear programming to obtain optimal coil input current. The application enables the micro robot to realize translational motion by applying a pulsed gradient magnetic field force and to complete a sustained lifting and lifting action by applying a constant gradient magnetic field force in a limited space, significantly improves the local operation capability of the micro robot, and improves the motion control precision in the limited space.

The application provides a support adjustment system, method, equipment, medium and product of a vehicle-mounted display screen, and belongs to the technical field of intelligent cockpits. The system comprises a support mechanism, a state acquisition component and a support adjustment device. The support adjustment device is configured to: acquire a first target pose of the vehicle-mounted display screen in real time; determine a first overall rigidity matrix of the support mechanism according to a real-time joint pose of the support mechanism; determine an end displacement deviation of the vehicle-mounted display screen based on real-time acceleration of the vehicle-mounted display screen and the first overall rigidity matrix; correct the first target pose based on the end displacement deviation to obtain a second target pose; and control the support mechanism to drive the vehicle-mounted display screen to perform pose adjustment according to the second target pose. The application performs inverse motion compensation based on the overall rigidity matrix and real-time impact acceleration, effectively offsets the end vibration, and improves the adjustment stability and safety of the vehicle-mounted display screen.

This invention belongs to the field of edge computing technology, and particularly relates to an offloading and resource allocation method for heterogeneous edge computing networks based on information age. The invention includes: performing federated learning based on the experience of each mobile device; updating the local neural network of each mobile device based on the global neural network parameters obtained from the federated learning; training the local neural network and using the trained local neural network to output the offloading decision for the task corresponding to the current time slot; adjusting offloading decisions that do not meet energy consumption constraints using an elite-preserving genetic algorithm; calculating the computing and bandwidth resources allocated by each base station to each mobile device; executing the offloading decision and computing and bandwidth resource allocation tasks; and calculating the reward for each mobile device. This invention reduces the complexity of problem solving and ensures strict compliance with energy consumption constraints through a secure learning mechanism, significantly improving the convergence speed and robustness of the strategy.

Architectures and methods of constructing high precision, high stability MEMS based angular rate sensors are provided. The structures include implementations that allow for the suppression of in-phase motion of the coupled masses, mechanical enhancement of the drive motion in the drive mass, and mechanical enhancement of the Coriolis induced motion in the sense mass. The proposed architectures minimize the mechanical momentum generated by the actuation forces in the drive, sense, and Q-compensation masses compared to the prior art. Furthermore, the methods include several implementations for achieving stress decoupling between the MEMS device and the environment and reducing anchor point damping.

The application discloses a 4WIS mode controller based on a road adhesion coefficient and speed, and the method is based on a road adhesion coefficient and a longitudinal vehicle speed in the aspect of trajectory tracking control of a four-wheel independent steering vehicle, three self-adaptive steering modes of high adhesion low speed, high adhesion high speed and low adhesion steady running are designed, and the optimization matching of steering characteristics under different working conditions is realized.

This invention proposes an adaptive control method for an active-end auxiliary drive unit in an on-orbit refueling system. This method enables flexible switching between closed-loop and open-loop, active and passive control modes, thereby allowing the auxiliary thrust unit to smoothly interact with external, variable, and uncertain resistance. It effectively avoids large speed fluctuations and force impacts, ensuring the reliability and safety of valve insertion, locking, and separation processes. This method also solves the problem of jamming during docking, locking, and separation of the active and passive refueling interfaces, which can lead to mission failure.

The utility model relates to the production technical field of coextrusion infusion film, specifically relates to a kind of automatic feeding, weighing and discharging homogenization's three-layer coextrusion infusion film equipment.The vacuum suction hopper of the utility model is independently connected with fan, and fan is used to form negative pressure in the vacuum suction hopper to extract material;The top of each vacuum suction hopper is provided with several raw material conveying ports;Temporary storage bucket is located below the vacuum suction hopper, and different components of raw material are stored therein;The bottom of temporary storage bucket is provided with weighing disc;Homogenization equipment is cylindrically arranged, and stirring weightlessness barrel for realizing the mixing of raw material and avoiding weightlessness is arranged inside;Mounting base is located at the bottom of homogenization equipment, and is used to connect the extruder for producing three-layer coextrusion infusion film.It can extract and measure different raw materials through at least three groups of independent vacuum suction hopper and weighing disc with built-in weighing sensor, ensure that each raw material enters production process according to the predetermined proportion and sequence, improve production efficiency and product quality.

The invention discloses a photovoltaic array adaptive global maximum power point tracking method and system. The method comprises the following steps: solving global maximum power point reference voltage and global maximum power point reference power output by a photovoltaic array based on current environment data by adopting a two-stage nested multi-strategy particle swarm algorithm; judging whether a preset accurate control switching condition is met or not according to the output power of the photovoltaic array and the global maximum power point reference power; if a precise control switching condition is met, switching to a self-adaptive super-spiral sliding mode control mode, otherwise, maintaining a PI control mode; driving a power switch tube in the DC-DC converter to act by using a PI control mode or a self-adaptive super-spiral sliding mode control mode; according to the method, reference parameters are solved through the two-stage nested multi-strategy optimization particle swarm optimization algorithm, a dual-mode switching mechanism of PI control and self-adaptive super-spiral sliding mode control is matched, accurate and rapid tracking of the global maximum power point in a complex environment is achieved, and steady-state power fluctuation is effectively restrained.

The invention relates to the technical field of hoisting equipment, and discloses a free hook falling hydraulic control method, device and system and a storage medium. Original control current converted from an output voltage signal of an electric control proportional pedal is directly input into an electric proportional pressure reducing valve, and rapid feedforward control over pressure of a brake cavity is achieved; the problem of response delay caused by reciprocating motion of a valve element of the electric proportional pressure reducing valve is solved, and brake torque regulation and control can rapidly follow pedal operation; meanwhile, the current brake cavity pressure is collected and converted into feedback current based on the first preset mapping relation, target control current is obtained by combining the original control current and the feedback current, then the electric proportional pressure reducing valve is driven, pressure closed-loop control is formed, the static hysteresis characteristic of the electric proportional pressure reducing valve is effectively compensated, and the brake efficiency is improved. The pressure of the brake cavity is accurately matched with pedal operation of a user, and the brake regulation and control accuracy in the free hook falling process is improved.

The application provides a light emitting structure and a light emitting device. The light emitting device comprises a circuit substrate and a plurality of light emitting structures. Each light emitting structure is attached to the circuit substrate. The light emitting structure comprises an LED light source and a lens. The lens and the LED light source are connected into one body by means of secondary injection molding. The LED light source is embedded in the lens. The LED light source has a solder pad. The solder pad is exposed to the lens so as to attach the light emitting structure to the circuit substrate. Before the light emitting structure is attached to the circuit substrate, the LED light source and the lens are connected into one body by means of secondary injection molding. Therefore, the manufacturing efficiency and the manufacturing precision of the light emitting device are improved.

This utility model discloses a pressure regulating device for a sector-shaped feed valve, including a feed valve body and a hydraulic cylinder mounted on the front of the feed valve body. A mounting plate is fixedly installed on the top of the feed valve body, an active valve plate is movably installed on one side of the bottom of the feed valve body, and a follower valve plate is movably installed on the other side of the bottom of the feed valve body. This utility model relates to the technical field of sector-shaped feed valves. This pressure regulating device, through the cooperation between the hydraulic valve and the protective housing, can adjust the driving pressure of the hydraulic cylinder during feed valve operation, avoiding situations where insufficient pressure leads to slow or stalled closing speed, and also avoiding energy waste caused by excessive pressure, thus improving practicality. Through the cooperation of a dust cover and a fixing ring, the piston rod of the hydraulic cylinder can be closed and dustproofed during operation, preventing particulate material from adhering to the piston rod and causing surface scratches, thereby extending service life.

The invention discloses a continuous textile pattern printing device and a printing forming method thereof, and relates to the field of printing devices. A printing unit in the continuous printing device for the textile patterns comprises a printing machine main body, a material receiving pipe and a material discharging pipe for discharging and receiving materials are arranged in front of and behind the printing machine main body, a transmission unit comprises a driving box, a first adjusting gear is arranged in the driving box, and a clamping block is movably clamped in the first adjusting gear; an electric telescopic rod is arranged on the side face of the clamping block, a first adjusting belt is arranged outside the first adjusting gear, the first adjusting belt is arranged at the end of the material collecting pipe, and a transmission belt is arranged at the end of the material collecting pipe. According to the continuous textile pattern printing device and the printing forming method thereof, a second transmission gear and a first transmission gear synchronously rotate, so that a material receiving pipe and a material discharging pipe can be operated more stably, and meanwhile, the rotating efficiency of the material receiving pipe and the rotating efficiency of the material discharging pipe are changed according to a first adjusting gear and a second adjusting gear.

The utility model provides a temperature measuring device system for an aluminum heating plate. The temperature measuring device system comprises a base for placing the aluminum heating plate and a temperature measuring unit arranged on the upper surface of the aluminum heating plate, the temperature measuring unit comprises a central temperature measuring belt arranged in the center of the aluminum heating plate, and a plurality of high-temperature temperature measuring belts and a plurality of low-temperature temperature measuring belts which are annularly arranged on the central temperature measuring belt; the high-temperature temperature measuring belt is arranged right above the electric heating wire in the aluminum heating disc; and the low-temperature temperature measuring belt is arranged between two adjacent electric heating wires. The temperature measuring device system used for the aluminum heating plate is simple in structure, low in manufacturing cost and small in occupied space, accurate measurement of the temperature of the aluminum heating plate is achieved by designing the distribution condition of the temperature measuring elements on the upper surface of the aluminum heating plate, and therefore changes of temperature uniformity of the heating plate are judged, and guidance for product improvement is achieved.